• 专利附录
  • 专利说明
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    • 专利摘要:
    the present invention relates to a non-fibrous laundry detergent sheet that includes at least one frangibility line to separate the sheet into smaller sections of different sizes.
    公开号:BR112019015826A2
    申请号:R112019015826-0
    申请日:2017-02-06
    公开日:2020-03-31
    发明作者:TAN Hongsing；Tang Ming；Robert Sivik Mark；William Denome Frank
    申请人:The Procter & Gamble Company；
    IPC主号:
    专利说明:

    1/42
    LEAF DETERGENT FOR WASHING IN CLOTHES UNDERSTANDING FRANGIBILITY LINES FIELD OF INVENTION [0001JA invention refers to an leaf detergent not fibrous for washing in clothes
    comprising one or more lines of frangibility while the lines of frangibility form two or more sections with different sizes.
    BACKGROUND OF THE INVENTION [0002] The laundry detergent sheet is a new type of laundry detergent product form. The commercially available laundry sheet can be configured to use frangibility lines so that a user of the laundry sheet can tear the sheet in two or more portions for immediate and / or later use. However, the commercially available laundry sheet has at least one disadvantage. When clothes are washed, the consumer may need different doses of detergent for different purposes. For example, she can use a higher dose for machine washing a heavy load of garments and fabrics and a lower dose for hand washing just a few pieces of clothing, and she can use different amounts of smaller doses for pre- treat different stains on clothes. The commercially available laundry sheet, however, can be merely divided into strips the same size as, for example, 5 cm * 10 cm. These strips of the same size as the sheet for washing clothes do not allow the consumer to easily obtain different doses of
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    2/42 detergent. For example, consumers who need to use only a smaller dose (less than the 5 cm * 10 cm strip) to pre-treat a stain are forced to use an unnecessarily large dose or to tear the strip into an undesirably irregular shape. Consequently, there is a need to provide a laundry detergent sheet that can be easily separated into pieces of different sizes for differential dosing.
    SUMMARY OF THE INVENTION [0003] The laundry detergent sheet has one or more lines of separability that separate the sheet into sections of different sizes and / or shapes so that the consumer can select a section that is most suitable for a purpose specific (pre-treatment or manual washing with less detergent dosage).
    [0004] The present invention provides a non-fibrous detergent sheet for washing clothes, comprising at least one surfactant and at least one film-forming agent, while the detergent sheet for washing clothes is completely or substantially soluble in water. Preferably, the laundry detergent sheet has a thickness in the range of 0.1 mm to 10 mm, an aspect ratio between length and thickness of at least 5: 1 and an aspect ratio between width and width. thickness of at least 5: 1. Preferably, the laundry detergent sheet comprises at least a first section and a second section separated by at least one frangibility line, while the first section and the second section are of different sizes.
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    3/42 [0005] Preferably, the non-fibrous detergent sheet for washing clothes additionally comprises a third section separated from the first section and the second section by the addition of frangibility line (s), while the third section is equal in size or different from the first section or the second section.
    [0006] Preferably, the first section and the second section of the laundry detergent sheet are marked by different size indicators, different illustrations, or different colors, while different size indicators designate different
    detergent doses for washingpreferably, clothes. in [0007] In at) line (s) frangibility is (are) formed (s) ) per indentation or drilling.[0008) ] In preferably the leaf detergent not
    fibrous laundry cloth of the present invention is elongated in a longitudinal direction and is rolled into a cylinder along said longitudinal direction.
    [0009] These and other aspects of the present invention will become more evident after reading the following detailed description of the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS [0010] The modalities presented in the drawings are illustrative in nature and are not intended to limit the invention defined by the claims. The following detailed description of the illustrative modalities can be understood when read in conjunction with the following drawings, and in which:
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    4/42 [0011] FIGURE 1 shows an exemplary laundry detergent sheet comprising two sections with different sizes, according to a specific embodiment of the present invention.
    [0012] FIGURE 2 shows an exemplary laundry detergent sheet comprising three sections with different sizes marked by indicators of different size, according to a specific embodiment of the present invention.
    [0013] FIGURE 3 shows an exemplary laundry detergent sheet comprising six sections with different sizes marked by indicators of different size, according to a specific embodiment of the present invention.
    [0014] FIGURE 4 shows an exemplary laundry detergent sheet comprising two sections having respective protuberances and intrusions for fitting as a puzzle, according to a specific embodiment of the present invention.
    [0015] FIGURE 5 shows an exemplary laundry detergent sheet comprising two sections with different shapes, according to a specific embodiment of the present invention.
    [0016] FIGURE 6 shows an exemplary laundry detergent sheet comprising four sections with two different shapes that are adapted for collar and cuff respectively, according to a specific embodiment of the present invention.
    [0017] FIGURES 7A and 7B show an elongated laundry detergent sheet that can be
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    5/42 rolled in a cylinder along its longitudinal direction, according to a specific embodiment of the present invention.
    DETAILED DESCRIPTION OF THE INVENTION [0018] Features and benefits of the various embodiments of the present invention will become apparent from the following description, which includes examples of specific embodiments designed to provide a broad representation of the invention. Various modifications will be evident to those skilled in the art from this description and from the practice of the invention. It is not intended to limit the scope of the present invention to the particular forms disclosed, and the invention encompasses all modifications, equivalents and alternatives that are within the spirit and scope of the invention, as defined by the claims.
    [0019] For use in the present invention, articles, including,, a, one and one, when used in a claim or in the specification, are understood to mean one or more of what is claimed or described. As used herein, the terms comprise (m), comprising, include, including, contain (contains) and containing are intended to be non-limiting, that is, other steps or other ingredients that do not affect the end result can be added. In this description, all concentrations and ratios are on a weight basis, unless otherwise specified. For use in the present invention, the term plurality means more than one.
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    6/42 [0020] For use in the present invention, the term water soluble refers to a solubility of more than about 30 grams per liter (g / L) of deionized water measured at 20 ° C and under atmospheric pressure. The term substantially soluble in water refers to a solubility of more than about 25 grams per liter (g / L) of deionized water measured at 20 ° C and under atmospheric pressure.
    [0021] For use in the present invention, the term sheet refers to a three-dimensional shape that has a thickness, a length and a width, in which the aspect ratio between length and thickness and the aspect ratio between width and the thickness are both at least about 5: 1, and the aspect ratio between length and width is at least about 1: 1. Preferably, the aspect ratio between length and thickness and the aspect ratio between width and thickness are at least about 10: 1, and the aspect ratio between length and width is at least about 1.2: 1. More preferably, the aspect ratio between length and thickness and the aspect ratio between width and thickness are at least about 15: 1, and the aspect ratio between length and width is at least about 1.5: 1. Most preferably, the aspect ratio between length and thickness and the aspect ratio between width and thickness are at least about 20: 1, and the aspect ratio between length and width is at least minus about 1.618: 1.
    [0022] For use in the present invention, the term non-fibrous refers to a structure that is free or substantially free of fibrous elements. For use in
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    7/42 present invention, fibrous element means an elongated particulate having a length much greater than its average diameter, that is, an aspect ratio between the length and the average diameter of at least 10: 1 and an average diameter of no more than 1 mm.
    [0023] For use in the present invention, the term laundry detergent refers to washing agents for all heavy purposes or tasks, especially cleaning detergents, for fabrics, as well as cleaning aids such as bleach, rinsing aids, additives or pre-treatment types.
    [0024] For use in the present invention, the term Water Dissolubility refers to the ability of a sample material to dissolve in water in a specific period of time at 20 ° C and under atmospheric pressure, without any agitation. This parameter is measured by placing 10 grams of the sample material in 1 liter of deionized water at 20 ° C and under atmospheric pressure for one (1) minute without any stirring. The remaining undissolved solids are then removed from the solution by filtration and immediately weighed (without drying). Dissolubility in Water is calculated as
    Weight of Undissolved Solids
    ------------------------- Tz ------------------------ ------------------ X J_ (J (J o [0025] For use in the present invention, the term essentially consisting of means that the composition does not contain any ingredient that interferes with the benefits or functions of those ingredients that are explicitly disclosed. In addition, the terms essentially free from or substantially free from
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    8/42 or substantially free of the means that the indicated material is present in the amount of 0% by weight to about 1% by weight, or preferably from 0% by weight to about 0.5% by weight, or with more preferably from 0% by weight to about 0.1% by weight, and most preferably, it is not present in analytically detectable levels. The term substantially pure or essentially pure means that the material indicated is present in the amount of about 99.5% by weight to about 100% by weight, preferably from about 99.9% by weight to about 100% by weight. weight, and more preferably 99, 99% by weight to about 100% by weight, and most preferably, all other materials are present only as impurities below analytically detectable levels.
    [0026] As used here, all concentrations and ratios are based on weight, unless otherwise specified. All temperatures of the present invention are in degrees Celsius (° C) unless otherwise noted. All conditions of the present invention are at 20 ° C, and under atmospheric pressure, unless otherwise specified. All molecular weights of polymers are determined by the numerical weight average molecular weight, unless specifically noted otherwise.
    The laundry detergent sheet of the present invention is non-fibrous, that is, free or substantially free of fibrous elements. Such a laundry detergent sheet can be formed by first providing an aqueous paste containing dissolved or dispersed raw materials in water and then molding the aqueous paste into a leaf form.
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    9/42 performed simultaneously with the formatting step, or can be performed subsequently, to remove water and form a finished sheet with little or no moisture content (for example, less than 3% by weight of water).
    [0028] The laundry detergent sheet of the present invention is completely or substantially soluble in water. In other words, it does not contain a water-insoluble substrate, as some of the conventional laundry detergent sheets do. The laundry detergent sheet of the present invention has a Water Dissolubility of at least 90%, preferably at least 95% and, more preferably, at least 98% and, most preferably, at least 99%, as measured according to the test method specified later in this document. Preferably, the entire laundry detergent sheet of the present invention can be completely dissolved in one liter of deionized water, that is, without any visible residue in the solution, within 15 seconds, more preferably within 10 seconds, and with more preferably within 5 seconds, at 20 ° C under atmospheric pressure and without any stirring.
    [0029] The laundry detergent sheet of the present invention can have any shape or size, as long as its thickness, length and width are characterized by an aspect ratio between the length and the thickness of at least about 5: 1, an aspect ratio between width and thickness of at least about 5: 1 and an aspect ratio between length and width of at least about 1: 1. Preferably, the aspect ratio between the length and the
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    10/42 thickness and the aspect ratio between width and thickness are at least about 10: 1, and the aspect ratio between length and width is at least about 1.2: 1. More preferably, the aspect ratio between length and thickness and the aspect ratio between width and thickness are at least about 15: 1, and the aspect ratio between length and width is at least about 1.5: 1. Most preferably, the aspect ratio between length and thickness and the aspect ratio between width and thickness are at least about 20: 1, and the aspect ratio between length and width is at least minus about 1.618: 1. The thickness of the laundry detergent sheet of the present invention can vary from about 0.1 mm to about 10 mm, preferably from about 0.2 mm to about 5 mm, more preferably from about 0, 3 mm to about 4 mm and, most preferably, from about 0.5 mm to about 2 mm. The width of the laundry detergent sheet can vary from about 2 cm to about 1 meter, preferably from about 5 cm to about 50 cm, and more preferably from about 10 cm to about 40 cm. The length of the laundry detergent sheet can vary from about 2 cm to about 50 meters, preferably from about 5 cm to about 1 meter, and more preferably, from about 10 cm to about 80 cm .
    [0030] In a preferred but not necessary embodiment of the present invention, the laundry detergent sheet has a golden rectangular shape (that is, with an aspect ratio between length and width of about 1.618: 1), and is characterized by a width of
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    11/42 about 10 to about 15 cm and a thickness of about 0.5 mm to about 2 mm. Such a golden rectangular shape is aesthetically pleasing and charming to consumers, so that multiple sheets of such shape can be stacked and packed together for sale in a container that is also characterized by a similar golden rectangular shape.
    [0031] In an alternative embodiment of the present invention, the laundry detergent sheet has an elongated shape (i.e., with an aspect ratio between the length and width of about 10 to 50: 1), and is characterized across a width of about 10 to 15 cm and a thickness of about 0.5 mm to about 2 mm. Such an elongated shape allows the laundry detergent sheet to be rolled or folded in a compact unit for ease of packaging, storage, transport and display.
    [0032] The laundry detergent sheet of the present invention is characterized by a sufficiently high surfactant activity, for example, at least 30%, preferably at least 50%, more preferably at least 60% and, with the maximum preferably at least 70%. This high surfactant activity provides a very compact and concentrated form of laundry detergent, which is particularly convenient for consumers who travel frequently and need to wash clothes while traveling. In addition, the transportation and handling costs for such a compact and concentrated form are significantly reduced, compared to the traditional powder or liquid forms of laundry detergents, which make this sheet detergent
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    12/42 for washing clothes particularly desirable to be marketed through e-commerce channels.
    [0033] Preferably, the laundry detergent sheet of the present invention has certain attributes that make it aesthetically pleasing to consumers. For example, the sheet may have a relatively smooth surface, thus providing a pleasant feeling when touched by the consumer. In addition, it is desirable that the laundry detergent sheet may have little or no noticeable pore on its surface.
    [0034] It is also desirable that the laundry detergent sheet of the present invention is strong to withstand adherent mechanical forces without losing its structural integrity and, at the same time, be flexible enough for easy packaging and storage.
    Frangibility lines [0035] The present invention provides a non-fibrous laundry detergent sheet comprising frangibility lines that separate the sheet into individual sections of different sizes. The advantage is that the sections of the sheet can be easily torn along the lines of frangibility into smaller pieces with different sizes desirable for different uses.
    [0036] For example, the laundry detergent sheet of the present invention can contain at least a first section and a second section separated by at least one line of frangibility, while the first section and the second section have different sizes.
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    13/42 [0037] The detergent sheet for washing clothes can have a generally rectangular shape. Alternatively, a laundry detergent sheet of the present invention can have a variety of other shapes, including, for example, a generally square shape, a generally oval shape, or any other symmetrical shapes.
    [0038] Preferably, the laundry detergent sheet is 10 cm to 30 cm in length, preferably 11 cm to 25 cm, more preferably 12 cm to 20 cm; it has a width of 5 cm to 18 cm, preferably 6 cm to 15 cm, and more preferably 7 cm to 13 cm, or 10.5 cm to 12.5 cm; and has a thickness of 0.6 mm to 3 mm, preferably 0.8 mm to 2 mm. Here the length refers to the longest dimension of the sheet section, and the width refers to the longest dimension perpendicular to the length in the plane of the sheet.
    [0039] The smaller and separate sections defined by frangibility lines can have desired dimensions according to the user's need. Preferably, such sections may be 1 cm to 10 cm long, preferably 1.5 cm to 8 cm, more preferably 2 cm to 6 cm; and a width of 1 cm to 10 cm, preferably 1.5 cm to 8 cm, more preferably 2 cm to 6 cm.
    [0040] FIGURE 1 is an example of the laundry detergent sheet of the present invention, comprising two sections with different sizes. Specifically, the laundry detergent sheet 10 comprises a first section 12 and a second section 14 separated by a frangibility line 11, while
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    14/42 the first section 12 and the second section 14 are rectangular in shape, but are characterized by different sizes.
    [0041] Preferably, the ratio between the size of the first section 12 and the size of the second section 14 can be greater than 1: 1 to 10: 1, preferably from 1.1: 1 to 8: 1, more preferably 1.2: 1 to 5: 1, alternatively 1.5: 1, or 1.618: 1, or 2: 1, or 2.5: 1, or 3: 1, or 3.5: 1, or 4 : 1 etc.
    [0042] Frangibility lines can be introduced to the laundry detergent sheet in a variety of ways, for example, indentation or perforation. In some embodiments, the frangibility lines are made up of holes. In a preferred embodiment, the holes are circular in shape and have a diameter of about 1 mm or less; about 0.8 mm or less; but about 0.2 mm or more, or about 0.3 mm or more. If the holes have other shapes (for example, square, triangular, etc.), then the size of such holes may correspond to the diameter, previously described in this document, for the circular holes. Frangibility lines can comprise other modalities, as long as they actually provide perforated lines along which a user can easily separate the detergent sheet into smaller sections.
    [0043] I From preferably the detergent sheet for wash with clothes can understand additionally an third section what : is separated from the first section and gives Monday section by adding line (s) frangibility . THE third section can have a size that differs from gives first section and of the second section. Alternatively, The
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    15/42 third section can be the same size as the first section or the second section.
    [0044] FIGURE 2 shows an example of the laundry detergent sheet of the present invention comprising three sections with three different sizes. Specifically, the laundry detergent sheet 20 comprises a first section 22, a second section 24 and a third section 26, which are separated by three rangeability lines 21a, 21b, and 21c. All three sections 22, 24, 26 have rectangular shapes, but are characterized by different sizes.
    [0045] Preferably, different sections on the laundry detergent sheet of the present invention are marked by different size indicators, which designate different doses of laundry detergent. For example, the largest section 22 of the laundry detergent sheet 20 in FIGURE 2 is marked by a L size indicator which means large; the intermediate section 24 is marked by an indicator of size M which means medium; and the smallest section 26 is marked by an indicator of size S which means small. The different size indicators L, M, and S can be printed in ink on the laundry detergent sheet 20, or they can also be made up of frangibility lines.
    [0046] Preferably, the laundry detergent sheet also contains a fourth section, a fifth section, a sixth section, etc., which are separated from the adjacent sections by lines of frangibility and which may be the same or different sizes from those sections previously
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    16/42 mentioned. In a specific embodiment, the laundry detergent sheet contains four or more sections, all having different sizes. In another alternative embodiment, the laundry detergent sheet contains four or more sections, some of which share a first size, while others share a second size, etc.
    [0047] FIGURE 3 is an example of the laundry detergent sheet of the present invention comprising six sections with three different sizes, marked by different size indicators. In FIGURE 3, the laundry detergent sheet 30 comprises a large section 32 with an L size indicator marked on it, two middle sections 34 of the same size, each with an M size indicator marked on it, and three small sections 36 of the same size, each with an S size indicator marked on them.
    [0048] In other modalities, different sections of the laundry detergent sheet can be marked by different colors, symbols, characters, messages, statements or illustrations. Such colors, symbols, characters, messages, statements or illustrations can be modeled to help facilitate or establish an association between the respective sections of the laundry detergent sheet and one or more detersive functions or benefits of such sections in a user's mind. . Additionally, such colors, symbols, characters, messages, statements or illustrations may associate the laundry detergent sheet with the trade name of Tide®, Ariel®, and combinations thereof.
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    17/42
    In addition, such colors, symbols, characters, messages, statements or illustrations can simply cause an aesthetic delight to the consumer. Any method known in the art, for example, printing, stamping, gluing, embossing, or the like, can be used to mark laundry detergent sheets, as long as the method does not interfere with the integrity of the laundry detergent sheet.
    [0049] In an alternative embodiment, different sections of the laundry detergent sheet of the present invention may contain different active ingredients (for example, different surfactants and / or different auxiliary detergent ingredients). For example, a first section of the laundry detergent sheet may comprise a surfactant and a coloring agent for fabrics, while a second section may comprise another surfactant and a perfumed ingredient.
    [0050] In other embodiments, the laundry detergent sheet may comprise a first section and a second section, while each section has a periphery partially or completely defined by one or more lines of frangibility. The periphery of the first section comprises at least one protrusion, and the periphery of the second section comprises at least one intrusion, so that the protrusion of the periphery of the first section and the intrusion of the periphery of the second section can be fitted together to form the detergent sheet for washing clothes as a jigsaw puzzle. Preferably, the periphery of the first section additionally comprises one or more
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    18/42 plus additional intrusions, and the periphery of the second section additionally comprises one or more additional protuberances, while the additional intrusions and protuberances are fitted together like a jigsaw puzzle. FIGURE 4 shows an example of a laundry detergent sheet 40 containing a first section 42 and a second section 44 separated by multiple lines of frangibility 41, while the multiple lines of frangibility 41 define for the first section 42 a periphery comprising multiple protrusions 43 and multiple intrusions 45 and for the second section 44 a periphery comprising multiple protrusions 46 and intrusions 48. The respective protrusions 43 and 46 and intrusions 48 and 45 of the first section and the second section 42 and 44 are fitted together for form the laundry detergent sheet 40.
    [0051] In some embodiments, the laundry detergent sheet may comprise at least a first section and a second section that are separated and isolated from each other, while each of the first section and the second section is completely delineated by one or more lines of frangibility. Preferably, the first and second sections have different formats; and more preferably, both have symmetrical shapes. FIGURE 5 exemplifies such a laundry detergent sheet 50 containing a first section 52 in a heart shape, and a second section 54 in a pentagonal shape. The first section 52 and the second section 54 are separated and isolated from each other, while they are completely delineated by the respective lines of frangibility 51 and 53. In others
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    19/42 examples, the one or more lines of frangibility outlining the first section and the second section constitute a specific design (for example, a pattern or a logo).
    [0052] In other embodiments, the laundry detergent sheet may include a plurality of sections of complex geometric shapes, while each section has a periphery that is partially or completely defined by one or more lines of frangibility, and such The periphery includes at least one protuberance and at least one intrusion, so that the protuberances and intrusions of the adjacent sections can be fitted together like a jigsaw puzzle to form the laundry detergent sheet. Preferably, all sections have the same shape, for example, islands of Gosper. Alternatively, the plurality of sections can have different formats.
    [0053] In a specific embodiment of the present invention, the laundry detergent sheet may include sections having different shapes that are adapted to pre-treat specific areas of clothing, for example, the collar or cuff of a shirt. FIGURE 6 shows an example of a laundry detergent sheet of the present invention comprising four sections of two different sizes, having shapes adapted to pre-treat the collar and shirt cuffs, respectively. Specifically, the laundry detergent sheet 60 comprises two (2) first sections 62 each having a shape and / or size coinciding with half a shirt collar, and two (2) second sections 64 each having a shape and / or size matching a fist
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    20/42 shirt. In this case, a piece of the laundry detergent sheet of the present invention can be suitably used to pre-treat a shirt. The quantities of the different sections can be varied depending on the need. For example, the laundry detergent sheet may alternatively include twelve (12) sections with two (2) different shapes, for example, including four (4) first sections each having a shape adapted for a shirt collar, and eight (8) second sections each having a shape adapted for a shirt cuff. Consequently, such a sheet is suitable for pretreating four liners. The advantage is that the consumer can easily tear a section of such a sheet to pre-treat heavily stained areas (collar or cuff) of clothing with perfect fit to the shape.
    [0054] In other embodiments, the detergent sheet for washing clothes can be lengthened and is rolled into a cylinder along a longitudinal direction. FIGURE 7A exemplifies an elongated laundry detergent sheet 70 that extends along a longitudinal direction 71 and contains a plurality of major sections 72 and a plurality of minor sections 74. FIGURE 7B shows the elongated detergent sheet for washing FIGURE 7A clothes 70 being rolled into a cylinder along the longitudinal direction 71. The advantage of such an elongated detergent sheet design is that it can be rolled up like a roll of toilet paper or a roll of kitchen paper towels, for easy storage , and also the consumer can easily tear a bigger or smaller piece along
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    21/42 of the frangibility lines, as needed, based on the wash load.
    [0055] Another aspect of the present invention provides a non-fibrous detergent sheet for washing clothes, comprising at least one surfactant and at least one film-forming agent, while the detergent sheet for washing clothes is completely or substantially soluble in water. , and has a thickness in the range of 0.1 mm to 10 mm, preferably the detergent sheet for washing clothes is elongated in a longitudinal direction and is rolled in a cylinder along said longitudinal direction; while the laundry detergent sheet comprises at least one frangibility line so that the laundry detergent sheet can be separated into two or more sub-sheets by the frangibility line. For example, the at least one line of frangibility can be perpendicular to the longitudinal direction. The frangibility lines can be configured to separate the detergent sheet for washing clothes into sub-sheets with any desired shape, such as rectangular shape, diamond shape, triangular shape, trapezoidal shape, etc. Preferably the sub-sheet has a rectangular shape. The frangibility lines can also be configured to separate the laundry detergent sheet into sub-sheets of any size desired for different loading needs.
    Surfactants [0056] The non-fibrous laundry detergent sheet of the present invention may comprise at least one surfactant selected from the group consisting of surfactants
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    22/42 anionic, non-ionic surfactants, amphoteric surfactants, cationic surfactants and combinations thereof. Such at least one surfactant forms a surfactant system in the non-fibrous detergent sheet for washing clothes, which can be present in an amount ranging from about 5% to about 90%, preferably from about 10% to about 90%, more preferably from about 20% to about 90%, even more preferably from about 30% to about 90%, and most preferably from about 50% to about 90%, by total weight of the non-fibrous laundry detergent sheet.
    [0057] In a particularly preferred but not required embodiment of the present invention, the laundry detergent sheet may have a surfactant system containing only anionic surfactants, for example, a single anionic surfactant or a combination of two or more anionic surfactants many different. Alternatively, the laundry detergent sheet of the present invention may have a compound surfactant system, for example, containing a combination of one or more anionic surfactants with one or more non-ionic surfactants, or a combination of one or more anionic surfactants with one or more amphoteric surfactants, or a combination of one or more anionic surfactants with one or more cationic surfactants, or a combination of all types of surfactants mentioned above (i.e., anionic, non-ionic, amphoteric and cationic). Preferably, but not necessarily, the laundry detergent sheet of the present invention has a compound surfactant system containing
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    23/42 a combination of one or more anionic surfactants with one or more non-ionic surfactants.
    Anionic surfactants [0058] Anionic surfactants suitable for forming the laundry detergent sheet of the present invention can be easily selected from the group consisting of C 6 -C 2 -alkyl _ linear or branched benzenesulfonates (LAS), C6-C2o-alkyl _ linear or branched sulfates (AS), C6-C2o-alkyl _ linear or branched alkoxylated sulfates (AAS), C6-C2o-alkyl _ linear or branched sulfonates, C6-C2o-alkyl _ linear or branched C6-alkyl-carboxylates C2o _ linear or branched phosphates, C6-C2o-alkyl _ linear or branched phosphonates, and combinations thereof. The preferred anionic surfactants of the present invention are selected from the group consisting of LAS, AS, AAS and combinations thereof. The total amount of anionic surfactants in the laundry detergent sheet can be in the range of 5% to 90%, preferably 10% to 80%, more preferably 20% to 75% and most preferably , from 30% to 70%, in total weight of the non-fibrous detergent sheet for washing clothes.
    Medium Cut AS [0059] A particularly preferred type of anionic surfactants to form the non-fibrous laundry detergent sheet of the present invention are C 6 -C 8 alkylsulfates, which are referred to here as Medium Cut AS, while each of which has a non-alkoxylated, branched or linear alkyl group, containing from about 6 to about 18 carbon atoms. In a
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    24/42 particularly preferred embodiment of the present invention, the medium cut AS is present as the main surfactant in the laundry detergent sheet, that is, it is present in an amount that is greater than 50% in total weight of all surfactants in said sheet, while the other anionic surfactants (such as LAS and / or AAS) are present as co-surfactants for such medium-cut AS.
    [0060] The medium-cut AS of the present invention has the generic formula of RO-SCrç M + , in which R is a non-alkoxylated, branched or linear alkyl group C-Cis and M is an alkali metal, metal cation alkaline earth or ammonium. Preferably, the R group of the AS surfactant contains from about 8 to about 16 carbon atoms, more preferably from about 10 to about 14 carbon atoms and, most preferably, from about 12 to about 14 carbon atoms. R can be substituted or unsubstituted, and is preferably unsubstituted. R is substantially free of any alkoxylation. M is preferably a sodium, potassium or magnesium cation and, more preferably, M is a sodium cation.
    [0061] These medium-cut AS surfactant (s) preferably function as the main surfactant in the non-fibrous laundry detergent sheet surfactant system of the present invention. In other words, the medium-cut AS surfactant (s) is present in an amount greater than 50% by weight of all surfactants in the laundry detergent sheet.
    [0062] Preferably, but not necessarily, the surfactant system of the present invention contains a mixture
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    25/42 medium-cut AS surfactants, wherein AS C6-C14 surfactants are present in an amount in the range of about 85% to about 100% of the total weight of the mixture. This mixture can be called a C6-C14 rich AS mixture.
    With more preferably the mixture in AS rich in C 6 -Ci4 contains in fence 90% by weight The fence in 100% on Weight, or 92% in Weight about 98% in Weight, or of fence of 94 % by weight The fence 96% by weight, or 100% in weight (is I am, pure),
    AS C 6 -Ci4.
    [0063] In a particularly preferred embodiment of the present invention, the surfactant system contains a mixture of medium-cut AS surfactants comprising from about 30% by weight to about 100% by weight or from about 50% by weight to about from 99% by weight, preferably from about 60% by weight to about 95% by weight, more preferably, from about 65% by weight to about 90% by weight, and most preferably, from about from 70% by weight to about 80% by weight of AS C12-C14, which can be called a mixture of AS rich in C12-C14. Preferably, such a mixture of AS rich in C12-C14 mainly contains AS C12. In a most preferred embodiment of the present invention, the surfactant system contains a mixture of medium-cut AS surfactants consisting of AS C12 and / or C14 surfactants, for example, 100% AS C12 or about 70% by weight at about 80 wt% AS C12 and 20 wt% to about 30 wt% AS C14, with little or no other AS surfactants.
    [0064] A mixture of commercially available medium cut AS particularly suitable for the practice of the present invention is Texapon® V95 G, obtained from Cognis (Monheim, Germany).
    Petition 870190073404, of 7/31/2019, p. 30/60
    In addition, the surfactant system of the present invention may contain a mixture of medium-cut AS surfactants comprising more than about 50% by weight, preferably more than about 60% by weight, with more preferably more than 70% by weight or 80% by weight, and most preferably, more than 90% by weight or even 100% by weight (i.e. substantially pure), of linear AS surfactants with an even number of carbon atoms, including, for example, surfactants AS Ce, Cg, Cio, C12, C14, Cie θ Cig.
    [0066] The amount of medium-cut AS surfactants used in the present invention can vary from about 5% to about 90%, preferably from about 10% to about 80%, more preferably, from about 20% to about 75%, and most preferably, from about 30% to about 70%, in total weight of the non-fibrous detergent sheet for washing clothes. In a most preferred embodiment of the present invention, the non-fibrous laundry detergent sheet contains from about 10% by weight to about 60% by weight, preferably from about 20% by weight to about 50% by weight, of pure AS C12 or a mixture of AS rich in C12-C14 in total weight of such leaf, whereas the mixture of AS rich in C12-C14 contains from about 70% by weight to about 80% by weight of AS C12 and from 20% by weight to about 30% by weight of AS C14 by total weight of such mixture.
    LAS:
    [0067] The non-fibrous laundry detergent sheet of the present invention may contain, alone as a main surfactant or, preferably, in combination with the medium cut AS,
    Petition 870190073404, of 7/31/2019, p. 31/60
    27/42 as previously described herein, as its cosurfactant, an alkyl _ C6-C2o linear benzenesulfonate (LAS). In a particularly preferred embodiment of the present invention, LAS is present as the main surfactant in the laundry detergent sheet, that is, it is present in an amount that is greater than 50% by weight of all surfactants in said sheet, while other anionic surfactants (such as medium-cut AS and / or AAS) are present as co-surfactants for such LAS.
    [0068] LAS anionic surfactants are well known in the art and can be readily obtained by sulfonation of commercially available linear alkylbenzenes. The alkyl C6-C2o _ Exemplary linear sulfonates that can be used in the present invention include alkali metal salts, alkaline earth metal or ammonium alkyl-C6-C2o _ linear benzene sulphonic acids, preferably the sodium salts, of potassium, magnesium and / or ammonium from linear Cn-C 8 -alkyl or -Cn-Cn-benzenesulfonic acids. More preferred are the sodium or potassium salts of linear C1-2 alkyl benzenesulfonic acids, the sodium salt of linear C1-2 alkyl benzenesulfonic acid, i.e., sodium dodecylbenzenesulfonate, is most preferred.
    [0069] If present, the amount of LAS in the non-fibrous laundry detergent sheet of the present invention can vary from about 5% to about 90%, preferably from about 10% to about 80%, with more preferably, from about 20% to about 75% and, with the maximum
    Petition 870190073404, of 7/31/2019, p. 32/60
    Preferably from about 30% to about 70% by weight of the laundry detergent sheet. In a highly preferred embodiment of the present invention, the non-fibrous laundry detergent sheet contains from about 5% by weight to about 20% by weight of a sodium, potassium or magnesium salt of C1-2 alkylbenzenesulfonic acid linear.
    AAS [0070] The non-fibrous laundry detergent sheet of the present invention may contain, alone as a main surfactant or, preferably, in combination with the medium-cut AS and / or LAS previously described in this document as a co-surfactant, a _ _ alquilCio C2o linear or branched alcoxissulfato (ASA) having an average alkoxylation degree in the range of about 0.1 to about 5.
    [0071] The AAS surfactants are preferably straight or branched alkyl C10 -C20 alkyl ethoxysulfate (AES) with the following formula (1):
    RO- (C 2 H 4 O) X -SO 3 M + (I), where R is a straight or branched alkyl chain having 10 to 20 carbon atoms, whether saturated or unsaturated. x has an average of 1 to 3; and M is selected from the group consisting of alkali metal, ammonium or substituted ammonium ions. Preferably, R is a straight or branched alkyl chain having 12 to 16 carbon atoms; x has an average of 3; and M is sodium. The anionic surfactant of the highest preference for the practice of the present invention is
    Petition 870190073404, of 7/31/2019, p. 33/60
    29/42 sodium lauryl ether sulfate with an average degree of ethoxylation of about 3.
    [0072] AAS surfactants, if present, can be supplied in an amount ranging from about 1% to about 30%, preferably from about 2% to about 20%, and more preferably, from about from 5% to about 15%, in total weight of the non-fibrous detergent sheet for washing clothes.
    Nonionic surfactants [0073] The non-fibrous laundry detergent sheet of the present invention may contain one or more nonionic surfactants, which must be used in combination with the anionic surfactants previously described in this document. These non-ionic surfactant (s) may be present in an amount in the range of 1% to 40%, preferably 2% to 30%, more preferably 5 % to 25% and, most preferably, 10% to 20%, in total weight of such non-fibrous detergent sheet for washing clothes.
    [0074] Suitable non-ionic surfactants useful in the present invention can comprise any conventional non-ionic surfactant. These can include, for example, amine oxide surfactants and alkoxylated fatty alcohols. Nonionic surfactants can be selected from ethoxylated alcohols and ethoxylated alkylphenols of the formula R (OC2H4) ώ ΟΗ, where R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 15 carbon atoms and alkylphenyl radicals in which alkyl groups contain from about 8 to about 12 carbon atoms, and the average value of n is about 5 to
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    30/42 about 15. In one example, the non-ionic surfactant is selected from among ethoxylated alcohols that have an average of about 24 carbon atoms in the alcohol and an average degree of ethoxylation of about 9 moles of ethylene oxide per mol of alcohol. Other non-limiting examples of non-ionic surfactants used here include: Cg-Cis alkyl ethoxylates, such as NEODOL® non-ionic surfactants, available from Shell; alkoxylates of C6-C1 -C12 -phenol, wherein the alkoxylate units can be oxyethylene units, oxypropylene units or a mixture thereof; condensates of C12-C18 alcohol and C6-C12 alkyl-phenol with ethylene oxide / propylene oxide block polymers, such as Pluronic®, available from BASE; branched medium chain alcohols C14-C22; branched medium chain C14-C22 alkoxylates, BAE X , where x ranges from 1 to 30; alkyl polysaccharides, and specifically alkyl polyglycosides; polyhydroxylated fatty acid amides, and ether group-blocked poly (oxyalkylated) alcohol surfactants. Suitable non-ionic surfactants also include those sold under the trade name Lutensol® with BASE.
    [0075] Preferred non-ionic surfactants of the present invention include alkyl polyglycoside, alkyl alcohols, alkoxylated alkyl alcohols, alkyl alkoxylates, alkylphenol alkoxylates, alkyl celluloses, polyhydroxylated fatty acid amides, poly (oxyalkylated) alcohol blockers with blocked group. . In some preferred embodiments, the non-ionic surfactant is selected from alkoxylated alkyl alcohols, such as alkoxylated Cs-is alkyl alcohol, and more specifically,
    Petition 870190073404, of 7/31/2019, p. 35/60
    31/42 is an ethoxylated C 8 -is alkyl alcohol. The alkoxylated alkyl alcohol may have an average degree of alkoxylation of about 1 to about 50, or about 1 to about 30, or about 1 to about 20, or about 1 to about 10. Alkoxylated alkyl alcohol can be straight or branched, substituted or unsubstituted.
    [0076] In a most preferred embodiment, the non-fibrous laundry detergent sheet of the present invention contains an ethoxylated C12-14 alkyl alcohol that has an average degree of ethoxylation of about 1 to about 10, or about 1 about 8, or about 3 to about 7, in an amount ranging from about 1% to
    fence 40%, preferably, about 5% about in 25%, and with ma is preference, about 10% about in 20%, by weight leaf total detergent for wash in
    clothes.
    Auxiliary Detergent Ingredients [0077] The non-fibrous laundry detergent sheet of the present invention can optionally include one or more other auxiliary detergent ingredients to assist or enhance cleaning performance or to modify the aesthetics of the sheet. Illustrative examples of such auxiliary detergent ingredients include: (1) inorganic and / or organic reinforcers, such as carbonates (including bicarbonates and sesquicarbonates), sulfates, phosphates (exemplified by tripolyphosphates, pyrophosphates and glassy polymeric metaphosphates), phosphonates, phytic acid , silicates, zeolites, citrates, polycarboxylates and salts thereof (such as acid
    Petition 870190073404, of 7/31/2019, p. 36/60
    32/42 melitico, succinic acid, oxisuccinic acid, poly (maleic acid), benzene-1,3,5-tricarboxylic acid, carboxymethyloxysuccinic acid and soluble salts thereof, ether-hydroxypolycarboxylates, maleic anhydride copolymers with ethylene or methyl ether and vinyl, 1,3,5-trihydroxybenzene-2,4,6-trisulfonic acid, 3,3dicarboxy-4-oxa-1,6-hexanedioates, polyacetic acids (such as ethylene diaminetetraacetic acid and nitrilotriacetic acid) and salts of themselves, and fatty acids (such as C1-2Cis monocarboxylic acids); (2) chelating agents, such as iron and / or manganese chelating agents selected from the group consisting of aminocarboxylates, aminophosphonates, polyfunctional substituted aromatic chelating agents and mixtures thereof; (3) clay dirt removal / anti-reposition agents, such as water-soluble ethoxylated amines (particularly ethoxylated tetraethylenepentamine); (4) polymeric dispersing agents, such as polymeric polycarboxylates and poly (ethylene glycols), copolymers based on acrylic acid / maleic acid and water-soluble salts thereof, hydroxypropyl acrylate, maleic acid / acrylic acid / vinyl alcohol terpolymers, poly (ethylene glycol) (PEG), polyaspartates and polyglutamates; (5) optical brighteners, which include, but are not limited to, stilbene derivatives, pyrazoline, coumarin, carboxylic acid, methinocyanines, dibenzothiophene-5,5-dioxide, azoles, 5- and 6-membered ring heterocycles and the like;
    (6) foam suppressors, such as monocarboxylic fatty acids and soluble salts thereof, high molecular weight hydrocarbons (for example,
    Petition 870190073404, of 7/31/2019, p. 37/60
    33/42 paraffins, haloparaffins, fatty acid esters, fatty acid esters of monovalent alcohols, aliphatic ketones C18-C40, etc.), N-alkylated aminotriazines, propylene oxide, monostearyl phosphates, silicones or derivatives thereof, alcohols secondary (for example, 2alkylalkanes) and mixtures of these alcohols with silicone oils; (7) foam boosters, such as C10-C16 alkanolamides, monoethanolamides and C10-C14 diethanolamides, high foaming surfactants (eg amine oxides, betain bees and sultains) and soluble magnesium salts (eg MgC12, MgSCq and the like); (8) fabric softeners, such as smectite clays, amine softeners and cationic softeners; (9) dye transfer inhibiting agents, such as polyvinylpyrrolidone polymers, polyamine N-oxide polymers, N-vinylpyrrolidone and N-vinylimidazole copolymers, manganese phthalocyanine and peroxidases, mixtures thereof. (10) enzymes, such as proteases, amylases, lipases, cellulases and peroxidases, and mixtures thereof; (11) enzyme stabilizers, which include water-soluble sources of calcium and / or magnesium ions, boric acid or borates (such as boric oxide, borax and other alkali metal borates); (12) bleaching agents, such as percarbonates (eg, sodium carbonate peroxyhydrate, sodium pyrophosphate peroxyhydrate, urea peroxyhydrate and sodium peroxide), persulfates, perborates, magnesium monoperoxyphthalate hexahydrate, magnesium salt of metachloroperbenzoic acid, 4nonylamino-4-oxoperoxybutyric acid and diperoxidodecanedioic acid, 6-nonylamino-6
    Petition 870190073404, of 7/31/2019, p. 38/60
    34/42 oxoperoxicaproico and photoactivated bleaching agents (for example, sulfonated aluminum and / or zinc phthalocyanines); (13) bleach activators, such as nonanoyloxybenzenesulfonate (NOBS), tetraacetylethylenediamine (TAED), starch-derived bleach activators, including (6octanamidocaproyl) oxybenzenesulfonate, (6nonanamidocaproyl) oxybenzenesulfonate, 6-oxides, oxidase-type, 6-oxenesulfonate, (6) acyl-lactam-based activators (especially acylcaprolactams and acylvalerolactams); and (14) any other known detergent auxiliary ingredients, including, but not limited to, carriers, hydrotropes, auxiliary processing agents, dyes or pigments, and solid fillers.
    Film-forming agent [0078] The non-fibrous laundry detergent sheet of the present invention contains, in addition to the surfactant (s) described and the auxiliary detergent ingredients described earlier in this document, at least one film-forming agent. Such at least one film-forming agent can be selected from water-soluble polymers, either synthetic or natural, and can be chemically and / or physically modified.
    [0079] Suitable examples of water-soluble polymers for the practice of the present invention include poly (alkylenic glycols) (also called poly (alkylene oxides) or polyoxyalkylenes), poly (vinyl alcohols), polysaccharides (such as starch or modified starch,
    Petition 870190073404, of 7/31/2019, p. 39/60
    35/42 cellulose or modified cellulose, pullulan, xanthan gum, guar and carrageenan gum), polyacrylates, polymethacrylates, polyacrylamides, polyvinylpyrrolidones and proteins / polypeptides or their hydrolyzed products (such as collagen and gelatin). Preferably, the film-forming agent to be used in the present invention is selected from the group consisting of poly (alkylenic glycols), poly (vinyl alcohols), modified starch or starch, cellulose or modified cellulose, polyacrylates, polymethacrylates, polyacrylamides, polyvinylpyrrolidones and combinations thereof. In a particularly preferred embodiment of the present invention, the non-fibrous laundry detergent sheet contains a poly (ethylene glycol) (PEG) or a poly (vinyl alcohol) (PVA), either alone (that is, without other film) or in combination with a polyamide, modified starch, cellulose or modified cellulose.
    [0080] In the execution of PEG, PEG can be selected from homopolymers of poly (ethylene glycol) and copolymers of poly (ethylene glycol) that have an average molecular weight between about 2,000 and about 100,000 g / mol, preferably , between about 4,000 and about 90,000 g / mol and, more preferably, between about 6,000 and about 8,000 g / mol. Suitable poly (ethylene glycol) copolymers preferably contain at least about 50% by weight of PEG and can be selected from the group consisting of poly (ethylene lactide-block-glycol), poly (ethylene glycol-block-glycol) , poly (lactide-cocaprolactone) -block-poly (ethylene glycol), poly (ethylene glycol-co-lactic acid), poly (ethylene glycol-co-acid
    Petition 870190073404, of 7/31/2019, p. 40/60
    36/42 glycolic), poly (ethylene glycol-co-poly (lactic acid-glycolic acid), poly (ethylene glycol-co-glycol propylene), poly (ethylene oxide-block-propylene oxide-block-ethylene oxide ), poly (ethylene propylene glycol oxide-block-propylene glycol) and poly (ethylene glycol-co-caprolactone). Exemplifying poly (ethylene glycol) homopolymers are commercially available from Sigma Aldrich, or from Dow under the name trademark of CARBOWAX ™, or from BASF under the trade name of Pluriol® Copolymers of exemplary poly (ethylene glycol) are commercially available from BASF under the trade names of Pluronic® F127, Pluronic® F108, Pluronic® F68 and Pluronic® A particularly preferred PEG for the practice of the present invention is a poly (glycol homopolymer)
    ethylene) what has a weight molecular weight average between about 6. 000 and about 80 . 000 g / mol •[ 0081 ] In execution in PVA, the PVA can be not modified or modified, per example, carboxylated or sulfonated. In preference , O PVA is partially or
    fully alcoholized or hydrolyzed. For example, it can be from 40 to 100%, preferably from 70 to 92%, more preferably from 88% to 92% alcohol or hydrolyzate. It is known that the degree of hydrolysis influences the temperature at which the PVA begins to dissolve in water, for example, 88% hydrolysis corresponds to a cold water soluble PVA film (that is, at room temperature), whereas 92% hydrolysis corresponds to a PVA film soluble in warm water. An example of preferred PVA is ethyloxylated PVA. A more preferred example of PVA is available
    Petition 870190073404, of 7/31/2019, p. 41/60
    37/42 commercially with Sekisui Specialty Chemicals America, LLC (Dallas, Texas, USA), under the trade name CELVOL®. Another more preferred example of PVA is the so-called Polymer G commercially available from Nippon Ghosei.
    [0082] The film-forming agent can be present in the non-fibrous laundry detergent sheet of the present invention at from about 1% to about 70%, preferably from about 2% to about 60%, with more preferably, from about 5% to about 50%, and most preferably, from about 10% to about 40% by weight of the total sheet.
    [0083] In addition to the film-forming agent, the non-fibrous detergent sheet for washing clothes may also comprise suitable additives such as plasticizers and solids, to modify the properties of the film-forming agent. Suitable plasticizers are, for example, pentaerythritols, such as depentanoitritol, sorbitol, mannitol, glycerin and glycols, such as glycerol or ethylene glycol. Piastifiers are generally used in an amount of up to 35% by weight, for example, from 5 to 35% by weight, preferably from 7 to 20% by weight, and more preferably from 10 to 15% by weight. Solids such as talc, stearic acid, magnesium stearate, silicon dioxide, zinc stearate or colloidal silica can also be used, generally in an amount in the range of about 0.5 to 5% by weight.
    Production process [0084] The non-fibrous detergent sheet for washing clothes can be produced using any method
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    38/42 suitable for film formation, such as casting, molding, pressing, extrusion / extrusion coating, calender lamination, solution deposition, chamfering and lamination. For example, it can be formed by first providing an aqueous paste containing raw materials dissolved or dispersed in water and then molding the aqueous paste into a leaf form. Drying is carried out simultaneously with the formatting step, or can be carried out subsequently, to remove water and form a finished sheet with little or no moisture content (for example, less than 3% by weight of water).
    [0085] A preferred, but not limiting, process for producing the non-fibrous laundry detergent sheet for washing the present invention using a cylindrical sheet production system is described later in this document.
    [0086] The cylindrical sheet production system comprises a base support with a heated rotating cylinder installed therein. The heated rotating cylinder can be driven by a motorized drive installed in the base bracket, and operate at a predetermined speed of rotation. Said heated rotating cylinder is preferably coated with a non-stick coating on its outer surface.
    [0087] A feeding mechanism is also provided on the base support, which is for the addition of a preformed aqueous paste containing all or some raw materials previously described in this document (for example, the surfactant (s), the film former (s) and auxiliary detergent ingredients) on the cylinder
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    39/42 heated swivel. The feed mechanism includes a feed shelf installed in the base support, although said feed shelf has at least one (preferably two) feed hopper (s) installed in it, an imaging device for dynamic observation of the feed and an adjustment device for adjusting the position and tilt angle of the feed hopper.
    [0088] There is also a heating shield installed in the base support, to avoid rapid heat loss. Otherwise, the slurry can solidify very quickly on the heated rotating cylinder. The heating shield can also effectively save energy required by the heated rotating cylinder, thereby achieving reduced energy consumption and providing cost savings. The heating shield is a modular mounting structure, or integrated structure, and can be easily separated from the base support. A suction device is also installed in the heating shield for suction of hot steam, to prevent any water condensate from falling on the laundry detergent sheet being formed. There is also a starting feed mechanism installed on the base support, which is to collect the laundry detergent sheet already formed by the heated spinning cylinder.
    [0089] The production process of the non-fibrous detergent sheet for washing clothes is as follows. First, the heated rotating cylinder with the non-stick coating on the base support is
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    40/42 powered by motorized drive. The adjusting device then adjusts the feed mechanism so that the distance between the feed hopper and the external surface of the heated rotating cylinder reaches a predefined value. Meanwhile, the feed hopper adds the preformed aqueous paste containing all or some raw materials to produce the non-fibrous detergent sheet for washing clothes on the heated spinner. The heating shield suction device sucks in the hot water vapor generated by the heated rotating cylinder.
    [0090] Then, the starting feed mechanism collects the dry detergent sheet for washing clothes. The laundry detergent sheet already formed can then be cut or sliced to desired sizes by a cutting / slicing device downstream of the heated spinning cylinder. Optionally, it is additionally embossed with lines, patterns, logos, etc. embossing device downstream of the heated rotating cylinder.
    [0091] As noted above, the frangibility lines can be introduced to the laundry detergent sheet in a variety of ways. For example, a row of pins of a certain diameter, spaced equidistant from each other, can be pressed partially or entirely through the thickness of such a detergent sheet to generate multiple indentations or perforations that form the desired frangibility line. Frangibility lines can be produced on the laundry detergent sheet in other ways, by
    Petition 870190073404, of 7/31/2019, p. 45/60
    41/42 example, chemical or mechanical engraving, as long as they result in a perforated line along which a leaf user can easily separate the leaf into smaller sections.
    [0092] The detergent sheet for washing clothes can be packaged in a waterproof container, either rigid or flexible, to protect it against water or ambient humidity that can compromise its integrity over time. In some embodiments of the present invention, such a container will contain not only the laundry detergent sheet (s) of the present invention, but also other detergent products.
    [0093] The dimensions and values disclosed here should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension revealed as 40 mm is meant to mean about 40 mm.
    [0094] Each document cited in the present invention, including any patent or patent application in cross-referenced or related reference, and any patent or patent application in which this application claims priority or benefit from it, is hereby fully incorporated herein by reference. , unless expressly excluded or otherwise limited. Mention of any document is not an admission that it is prior art in relation to any invention disclosed or claimed in this document, nor that
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    42/42 he, alone or in any combination with any other reference or references, teaches, suggests or reveals such an invention. In addition, if there is a conflict between any meaning or definition of a term mentioned in this document and any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document will take precedence.
    [0095] Although specific modalities of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is intended, therefore, to cover in the appended claims all such changes and modifications that fall within the scope of the present invention.
    权利要求:
    Claims (15)
    [1]
    1. Non-fibrous detergent sheet for washing clothes, characterized by the fact that it comprises at least one surfactant and at least one film-forming agent, and the detergent sheet for washing clothes is completely or substantially soluble in water, being that laundry detergent sheet has a thickness in the range of 0.1 mm to 10 mm, an aspect ratio between length and thickness of at least 5: 1, and an aspect ratio between width and thickness of steel minus 5: 1, the detergent sheet for washing clothes comprises at least a first section and a second section separated by at least one line of frangibility, the first section and the second section having different sizes.
    [2]
    2. Non-fibrous laundry detergent sheet for washing according to claim 1, characterized by the fact that the laundry detergent sheet additionally comprises a third section separated from the first section and the second section by the addition of line (s) of frangibility, with the third section having a different size from the first section and the second section.
    [3]
    3. Non-fibrous laundry detergent sheet for washing according to claim 1, characterized in that the laundry detergent sheet additionally comprises a third section separate from the first section and the second section per line (s) of frangibility additional (s), the third section being the same size as the first section or the second section.
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    2/6
    [4]
    4. Non-fibrous detergent sheet for washing clothes, according to claim 1, characterized by the fact that the first section and the second section are marked by different size indicators, different illustrations, or different colors, the different ones being said size indicators designate the different doses of laundry detergent.
    [5]
    5. Non-fibrous detergent sheet for washing clothes, according to claim 1, characterized by the fact that the first section and the second section contain different surfactants and / or different auxiliary detergent ingredients.
    [6]
    6. Non-fibrous detergent sheet for washing clothes according to any of the preceding claims, characterized by the fact that said line (s) of frangibility is (are) formed by indentation or perforation .
    [7]
    7. Non-fibrous detergent sheet for washing clothes according to any of the preceding claims, characterized by the fact that the first section has a shape adapted to pre-treat a shirt collar and the second section has a shape adapted to pre-treat a shirt cuff.
    [8]
    8. Non-fibrous detergent sheet for washing clothes according to any of the preceding claims, characterized by the fact that the first section or the second section, preferably both, is completely delineated by said line (s) ) of frangibility, and preferably has a symmetrical shape.
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    3/6
    [9]
    9. Non-fibrous detergent sheet for washing clothes according to any of the preceding claims, characterized by the fact that the lines of frangibility define at least partially, preferably completely, a periphery for each of the sections, the first section being it has a periphery comprising at least one protrusion, and the second section has a periphery comprising at least one intrusion, so that at least one protuberance from the first section and at least one intrusion from the second section are fitted together so that the first section and the second section form the laundry detergent sheet as a puzzle.
    [10]
    10. Non-fibrous detergent sheet for washing clothes according to any one of the preceding claims, characterized in that the detergent sheet for washing clothes is elongated in a longitudinal direction and is rolled like a cylinder along said longitudinal direction.
    [11]
    11. Non-fibrous detergent sheet for washing clothes, characterized by the fact that it comprises at least one surfactant and at least one film-forming agent, the detergent sheet for washing clothes is completely or substantially soluble in water, and has a thickness in the range of 0.1 mm to 10 mm; the detergent sheet for washing clothes is elongated in a longitudinal direction and is rolled into a cylinder along said longitudinal direction; the laundry detergent sheet comprising at least one frangibility line so that the laundry detergent sheet can be
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    4/6 separated into two or more sub-sheets by said frangibility line.
    [12]
    12. Non-fibrous detergent sheet for washing clothes according to any of the preceding claims, characterized by the fact that said at least one surfactant is present in an amount in the range of 5% to 90%, preferably 20% to 90%, more preferably, 30% to 90%, and most preferably, 50% to 90%, by total weight of such non-fibrous detergent sheet for washing clothes; wherein, preferably, said at least one surfactant comprises one or more anionic surfactants selected from the group consisting of linear alkyl benzenesulfonates CeC2o _ (LAS), alkyl-C6-C2o _ linear or branched sulfates (AS), alkyl C6-C20 - linear or branched alkoxysulfates (AAS) having an average weight degree of alkoxylation in the range of 0.1 to 10, and combinations thereof.
    [13]
    13. Non-fibrous detergent sheet for washing clothes according to any one of the preceding claims, characterized by the fact that said at least one surfactant comprises: (1) one or more linear or branched AS CgCi8 surfactants as the surfactant (s) (s) principal (s); and (2) one or more LAS C 6 -C 2 oe and / or an AAS C 6 -C 2 o linear or branched as the co-surfactant (s), the said surfactant (s) being ) main (s) is (are) present in an amount that is greater than 50% in total weight of all surfactants in said sheet, and said one or more linear AS C 6 -Ci 8 surfactants or branched are preferably linear or branched AS C12-C14 surfactants.
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    5/6
    [14]
    14. Non-fibrous detergent sheet for washing clothes according to any one of claims 1 to 12, characterized by the fact that said at least one surfactant comprises: (1) one or more LAS Ce surfactants Ç2o as the main surfactant (s); and (2) one or more AS C6-Ci8 linear or branched and / or an AAS C6-Ç2the linear or branched as the co-active (s), and the said main (s) surfactant (s) is present in an amount that is greater than 50% in total weight of all surfactants on said sheet.
    [15]
    15. Non-fibrous detergent sheet for washing clothes according to any one of the preceding claims, characterized by the fact that said at least one film-forming agent is present in an amount in the range of 1% to 70%, preferably from 2% to 60%, more preferably from 5% to 50%, and most preferably from 10% to 40%, in total weight of such non-fibrous detergent sheet for washing clothes; said at least one film forming agent comprising one or more water-soluble polymers; preferably, said one or more water-soluble polymers are selected from the group consisting of poly (alkylenic glycols), poly (vinyl alcohols), modified starch or starch, cellulose or modified cellulose, polyacrylates, polymethacrylates, polyacrylamides, polyvinylpyrrolidones and combinations thereof; more preferably, said one or more water-soluble polymers are selected from the group consisting of poly (ethylene glycols), poly (vinyl alcohols), starch
    Petition 870190073404, of 7/31/2019, p. 52/60
    6/6 or modified starch, cellulose or modified cellulose, and combinations thereof.
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    法律状态:
    2021-05-04| B06W| Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette]|
    2021-10-13| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    优先权:
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    PCT/CN2017/072935|WO2018141104A1|2017-02-06|2017-02-06|Laundry detergent sheet comprising lines of frangibility|
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