Refill bag having high gloss and manufacturing method thereof

专利摘要:
PURPOSE: Provided is a gloss film bag which has metallic texture by forming metallic luster layer, thereby maximizing the discrimination from other products. Also, a method for producing the same is provided. CONSTITUTION: The high gloss film bag is produced using a laminate composed of an outer layer(1) upon which a print layer is formed; a thermal bonding layer(3) for thermal bonding; and a metallic luster layer(4) disposed between the outer layer and the thermal bonding layer. Two piece of the laminate films are cut into a bag shape. The peripheral of the films is thermal bonded in such a way that the thermal bonding layers face each other. The metallic luster layer is a metal deposit film formed by depositing metal on the print layer of the outer layer. The print layer is a thermoplastic resin film and the metallic layer is metallic foil such as aluminum foil.
公开号:KR20020017142A
申请号:KR1020000050273
申请日:2000-08-29
公开日:2002-03-07
发明作者:장욱；김기섭；이인현；이용현；김경원
申请人:성재갑；주식회사 엘지씨아이；
IPC主号:

专利说明:

Film bag of high gloss and its manufacturing method {Refill bag having high gloss and manufacturing method
[6] The present invention relates to a high gloss film bag and a method for producing the same. More specifically, the present invention is a laminated film (laminated film) in which two or more layers of materials are laminated, and in a film bag that is formed by heat fusion in the shape of a bag, a metal gloss layer is formed between the outer layer and the heat fusion layer. The present invention relates to a high gloss film bag and a method for producing the same, which exhibit high metal gloss using a laminated film formed by further formation.
[7] Currently, in packaging and distributing liquid or powdery products such as detergents and hair cosmetics at home and abroad, the liquid or powdery products are distributed in containers having nozzles or outlets in order to improve user usability. Containers having these nozzles or outlets are mainly used to improve usability of products frequently used in daily life such as shampoos, rinses, liquid soaps, and liquid detergents. However, these containers have a problem in that the contents after use of the contents once used to put something different.
[8] Therefore recycling is quite limited. In order to solve this problem, recently, it is common to distribute the product by refilling the same content as the original product so that it can be used, and a product to be refilled in a container after use is commonly referred to as a 'refill product'. . Containers with nozzles or outlets can be used repeatedly because of the use of refilled products, resulting in recycling of resources and saving of resources. In this case, when the refilled product is a liquid or powder product, in order to distribute such a refilled product, a means for containing them is also required, and in the case of a refilled product, the flowability and handleability until it can be used in a container Due to the extremely low price, the reduction of the amount of synthetic resin used for the manufacture of containers, the reduction of the volume of waste, the possibility of mass production, and the ease of handling, many film bags are used. It is said to account for 50% of all products produced.
[9] Conventional film bags are manufactured in a laminated film having a structure in which at least two layers are laminated in consideration of printability and heat sealability, and the laminated film is cut into a bag shape and heat-sealed to contain contents therein. As the laminated film constituting the film back as a shape, as shown in Fig. 1, the outer layer 1, in which a printing layer for identifying the contents of the product is formed, and the heat-sealing layer 3 for thermal fusion, are formed. ) Laminated film is used. The outer layer 1 is a layer on which a printed layer is formed, and is printed on the back surface, that is, the surface facing the heat-sealing layer 3, mainly to prevent damage to the printed contents, so that the outer layer 1 is printed. Synthetic resin film having excellent transparency so that the printed contents of the layer can be clearly seen, and mechanical wear resistance of a degree that is not easily scratched even by abrasion or the like can be used. Examples of the synthetic resin film include nylon, polyethylene terephthalate, biaxially oriented polypropylene, and the like. The heat seal layer 3 may be a thermoplastic resin having a low melting point, and a synthetic resin film having a property of being easily fused by heating and pressing may be used. Preferably, such materials include synthetic resin films such as linear low density polyethylene. In addition, when the outer layer 1 and the heat seal layer 3 are laminated between the outer layer 1 and the heat seal layer 3, the outer layer 1 is prevented from being separated from the heat seal layer 3. To this end, an adhesive layer 2 capable of strongly bonding the outer layer 1 and the heat-sealing layer 3 to each other may be interposed. This adhesive layer 2 may also be used a thermoplastic resin having a low melting point, a synthetic resin film of a material having a property that is easily fused by heating, pressing may be used. Preferably, such materials include synthetic resin films such as commercially available low density polyethylene for extrusion coating.
[10] The conventional film bag having the above-described configuration can produce a film bag having a beautiful appearance by printing even in the present state, but the material composition of the film bags for refilling products of all competitors is similar, so that each company In order to differentiate the company's products, it was possible only by differentiating the design such as to make the printing design of the printed layer more beautiful, but there was a problem that the product differentiation effect was not great only by the modification of the design.
[11] Therefore, the present inventors have continuously studied to solve the above problems, and as a result, by further forming a metallic gloss layer 4 that gives a metallic luster between the outer layer 1 and the heat-sealed layer 3 to be printed. By developing the film back to maximize the differentiation of the product by enabling the synergistic compound action of the metal layer and the printing layer formed on the outer layer (1) by the luster of the metal, and completed the present invention.
[12] It is an object of the present invention to provide a high gloss film back having a metallic texture.
[13] Another object of the present invention is to provide a method for producing a high-gloss film bag having a metal texture.
[1] 1 is a cross-sectional view of a portion of a conventional film bag cut out and displayed.
[2] 2 is a cross-sectional view of a portion of the film bag according to the present invention taken away.
[3] ※ Explanation of code for main part of drawing
[4] 1: outer layer 2: adhesive layer
[5] 3: heat seal layer 4: metal gloss layer
[14] In the high-gloss film bag according to the present invention, a film bag made of a laminated film comprising an outer layer on which a printing layer is formed and a heat fusion layer for heat fusion, and laminated on the outer layer and the heat fusion layer to be bonded to each other. Two sheets of laminated film formed by further forming a metallic gloss layer between the outer layer and the heat-sealed layer are cut in the shape of a bag, and the heat-sealed edges are formed in the shape of a bag by allowing the heat-sealed layers of the laminated film to be interviewed with each other.
[15] The metal gloss layer may be a layer made of a metal deposition film in which a metal is deposited on a thermoplastic resin film, or a layer formed by further depositing a metal on a printing layer formed on a film constituting an outer layer.
[16] In addition, the metal gloss layer may be a metal thin film such as an aluminum thin film.
[17] In the manufacturing method of the high-gloss film bag according to the present invention, in manufacturing a film bag made of a laminated film in which the outer layer on which the print layer is formed and the heat-sealing layer for thermal fusion are bonded to each other, a metal is deposited on the thermoplastic resin film. Interposing the outer metal layer and the thermal bonding layer between the outer layer, the thermal deposition layer, and laminating the outer layer, the metal deposition layer and the thermal bonding layer by a method of dry lamination or extrusion coating lamination to form a laminated film; And cutting the laminated film obtained in the shape of a bag, and heat-sealing the edges in the shape of a bag by allowing the heat-sealed layers of the two laminated films to be interviewed with each other.
[18] In addition, the method of manufacturing a high-gloss film bag according to the present invention, in the production of a film bag made of a laminated film in which the outer layer on which the printing layer is formed and the heat-sealing layer for thermal fusion are bonded to each other, printing on the back of the outer layer Forming a layer, depositing a metal on the printed layer, and then laminating the outer layer and the heat-sealing layer with each other by a dry lamination method or an extrusion coating lamination method; And cutting the laminated film obtained in the shape of a bag, and heat-sealing the edges in the shape of a bag by allowing the heat-sealed layers of the two laminated films to be interviewed with each other.
[19] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[20] As shown in Fig. 2, the high-gloss film bag according to the present invention includes an outer layer 1 on which a printing layer is formed, and a heat sealing layer 3 for thermal fusion, and these outer layers 1 and heat In the film bag made of a laminated film formed by laminating the fusion layer (3) to be bonded to each other, two laminated films formed by further forming a metal gloss layer (4) between the outer layer (1) and the heat-sealing layer (3). It is characterized in that the cut to the shape of the bag, and the heat-sealing layer (3) of the laminated film to be interviewed with each other to heat-bond the edge in the shape of the bag.
[21] An adhesive layer 2 for extrusion coating may be further formed between the outer layer 1 and the heat-sealing layer 3, and the adhesive layer may include a low melting thermoplastic resin film such as low density polyethylene. Can be.
[22] The outer layer 1 may be the same as or similar to the outer layer 1 constituting the conventional film bag. That is, a print layer is formed on the outer layer 1, and in order to prevent damage to the printed contents, the printed layer is mainly printed on the back surface instead of the surface, that is, the surface facing the heat seal layer 3, and thus the outer layer 1 is printed. Synthetic resin film having excellent transparency so that the printed contents of the layer can be clearly seen, and mechanical wear resistance of a degree that is not easily scratched even by abrasion or the like can be used. Examples of the synthetic resin film may include nylon, polyethylene terephthalate, biaxially oriented polypropylene, and the like, but the present invention is not limited thereto. In addition to the above synthetic resin films, any conventional synthetic resin film having excellent transparency and wear resistance may be used. Can be used.
[23] The heat seal layer 3 may be the same as or similar to the heat seal layer 3 constituting the conventional film bag. That is, a synthetic resin film having a property of being easily fused by heating and pressing may be used. Preferably, such materials include synthetic resin films such as linear low density polyethylene. In addition, when the outer layer 1 and the heat seal layer 3 are laminated between the outer layer 1 and the heat seal layer 3, the outer layer 1 is prevented from being separated from the heat seal layer 3. To this end, an adhesive layer 2 capable of strongly bonding the outer layer 1 and the heat-sealing layer 3 to each other may be interposed. This adhesive layer 2 may also be used a thermoplastic resin having a low melting point, a synthetic resin film of a material having a property that is easily fused by heating, pressing may be used. Preferably, such a material may be a synthetic resin film such as commercially available low-density polyethylene for extrusion coating, but the present invention is not limited thereto. In addition to the synthetic resin films described above, conventional thermoplastic resin films having a low melting point may be used. Any can be used.
[24] The metal gloss layer 4 is used to produce a high gloss film bag having a metallic texture by imparting metal gloss to the film bag, and may be a layer of a metal deposition film in which metal is deposited on a thermoplastic resin film. . The thermoplastic resin film is a film made of a commercially available thermoplastic resin, particularly preferably the same or similar to the synthetic resin film constituting the outer layer (1), for example, nylon, polyethylene terephthalate, biaxially stretched polypropylene, etc. Although the present invention is not limited thereto, in addition to the synthetic resin films described above, any conventional synthetic resin film having excellent transparency and wear resistance may be used.
[25] In addition, the metal gloss layer 4 may be a layer formed by further depositing a metal on the printing layer formed on the film constituting the outer layer 1. This is accomplished by forming a printing layer on the back surface of the outer layer 1 by a conventional printing method in a different order of the manufacturing process, and performing metal deposition directly on the printing layer.
[26] As the metal gloss layer 4, a metal thin film such as an aluminum thin film may also be used.
[27] The method for producing a high-gloss film bag according to the present invention, in the production of a film bag made of a laminated film in which the outer layer (1) on which the printing layer is formed and the heat-sealing layer (3) for thermal fusion are laminated to each other, thermoplastic, A metal deposition film in which a metal is deposited on a resin film is interposed between the outer layer 1 and the heat fusion layer 3, and the outer layer 1, the metal deposition layer, and the heat fusion layer 3 are subjected to dry lamination or extrusion coating. Laminating each other by a lamination method to form a laminated film; And the step of cutting the laminated film obtained in the shape of a bag, and allowing the heat-sealed layers 3 of the two laminated films to be interviewed with each other to thermally bond the edges to the shape of a bag. do.
[28] That is, the outer layer 1, the metal deposition layer, and the heat-sealing layer 3 are laminated in this order, and heated and pressed by a conventional lamination method such as a dry lamination method or an extrusion coating lamination method so that these layers are closely bonded to each other. It is possible to produce a laminated film by adhering, and the heat-sealing layer 3 of the laminated film has a low melting point by heating and pressing at this time, so it is easily partially partially dissolved and then removed from the heating and pressing state, and then again at room temperature. It is cured while being cooled, and the parts heated and pressed by heat fusion are bonded to each other. Thus, it is possible to easily obtain a film bag in a hollow state.
[29] In addition, the method of manufacturing a high-gloss film bag according to the present invention, in the production of a film bag made of a laminated film in which the outer layer (1) on which the print layer is formed and the heat-sealing layer (3) for thermal fusion are laminated to adhere to each other After the printing layer is formed on the rear surface of the outer layer 1, the metal is deposited on the printing layer, and the outer layer 1 and the heat-sealing layer 3 are laminated to each other by a dry lamination method or an extrusion coating lamination method. step; And the step of cutting the laminated film obtained in the shape of a bag, and allowing the heat-sealed layers 3 of the two laminated films to be interviewed with each other to thermally bond the edges to the shape of a bag. do.
[30] In this case, a thinner laminated film is formed because the metal is deposited on the printing surface formed directly on the rear surface of the outer layer 1 without employing the metal gloss layer 4 made of a separate film below the outer layer 1. It is possible to obtain a thin film bag from this laminated film.
[31] The deposition of the metal on the thermoplastic resin film or the outer layer (1) can be easily metal deposition by a commercially available plasma deposition apparatus, such metal deposition technology can be usefully used in the present invention.
[32] The metal to be deposited in the deposition of the metal is not limited, but preferably may be a silvery gloss, such as aluminum, inexpensive, a metal rich in raw material may be used. However, the present invention is not limited to aluminum as the metal to be deposited, and in addition to aluminum, almost all kinds of metals such as copper, nickel, zinc, silver, and gold may be deposited and used according to a conventional method.
[33] Hereinafter, preferred embodiments and comparative examples of the present invention will be described.
[34] The following examples are intended to illustrate the invention and should not be understood as limiting the scope of the invention.
[35] Example
[36] The laminated 15 mm thick transparent nylon film (outer layer 1) and the 12 µm polyethylene terephthalate film (metal gloss layer 4) on which the printing was carried out were laminated by dry lamination, and then the nylon film was In the direction of the film and laminated with a 70 μm linear low density polyethylene film by extrusion coating lamination to obtain a total thickness of 120 μm to obtain a laminated film. The two laminated films are interviewed with each other by the heat-sealing layer 3. To obtain a film bag by thermal fusion.
[37] The surface of the obtained film bag was measured by using a commercially available gloss meter (Gloss meter) to measure the reflection gloss at an angle of 75 °, the results are shown in Table 1 below. In addition, visual evaluation of the obtained film bag was performed, and the results are also shown in Table 1 below.
[38] Comparative example
[39] Except for obtaining a laminated film by laminating 15 mm thick transparent nylon film (outer layer 1) and 70 μm linear low density polyethylene film by extrusion coating lamination to obtain a total thickness of 120 μm. Was performed in the same manner as in Example, the experiment on glossiness was performed in the same manner, and the results are also shown in Table 1 below.
[40] divisionExampleComparative example GlossinessTester ^* 92.640.4 Naked eyes ^** Greatusually *: Glossiness evaluation by glossiness tester **: Glossiness evaluation by naked eye
[41] As shown in Table 1, in the case of the film bag according to the present invention, it was confirmed that it shows an excellent gloss compared to the comparative example representing a conventional film bag.
[42] Therefore, according to the present invention, it is possible to provide a high gloss film bag, and thus, there is an effect of providing a film bag and a method of manufacturing the same, which provide excellent discriminating power.
[43] Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

权利要求:
Claims (6)
[1" claim-type="Currently amended] In a film bag made of a laminated film comprising an outer layer on which a printing layer is formed, and a thermal fusion layer for thermal fusion, wherein the outer layer and the thermal fusion layer are laminated to adhere to each other,
Two laminated films formed by further forming a metallic gloss layer between the outer layer and the heat-sealed layer are cut in the shape of a bag, and the heat-sealed edges are formed in the shape of a bag by allowing the heat-sealed layers of the laminated film to be interviewed with each other. High-gloss film back.
[2" claim-type="Currently amended] The method of claim 1,
The high gloss film back, characterized in that the metal gloss layer is made of a metal deposition film in which a metal is deposited on a thermoplastic resin film.
[3" claim-type="Currently amended] The method of claim 1,
And said metal gloss layer comprises a layer formed by further depositing a metal on a printing layer formed on the film forming said outer layer.
[4" claim-type="Currently amended] The method of claim 1,
The high gloss film back, wherein the metal gloss layer is made of a metal thin film such as an aluminum thin film.
[5" claim-type="Currently amended] In manufacturing a film bag made of a laminated film in which the outer layer on which the print layer is formed and the heat fusion layer for heat fusion are laminated to adhere to each other,
A metal film deposited by depositing a metal on the thermoplastic resin film is interposed between the outer layer and the heat-sealed layer, and the outer layer, the metal-deposition layer, and the heat-sealed layers are laminated to each other by dry lamination or extrusion coating lamination. Forming; And
Cutting the laminated film thus obtained in the shape of a bag and heat-sealing the edges in the shape of a bag by allowing the two laminated films to be joined to each other by the heat-sealing layers;
Method for producing a high gloss film back, characterized in that made.
[6" claim-type="Currently amended] In manufacturing a film bag made of a laminated film in which the outer layer on which the print layer is formed and the heat fusion layer for heat fusion are laminated to adhere to each other,
Forming a printed layer on the back side of the outer layer, depositing a metal on the printed layer, and then laminating the outer layer and the heat-sealed layer with each other by a dry lamination method or an extrusion coating lamination method; And
Cutting the laminated film thus obtained in the shape of a bag and heat-sealing the edges in the shape of a bag by allowing the two laminated films to be joined to each other by the heat-sealing layers;
Method for producing a high gloss film back, characterized in that made.

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同族专利:

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公开号 | 公开日

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引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2000-08-29|Application filed by 성재갑, 주식회사 엘지씨아이

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2000-08-29|Priority to KR1020000050273A

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2002-03-07|Publication of KR20020017142A

优先权:

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申请号 | 申请日 | 专利标题

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KR1020000050273A|KR20020017142A|2000-08-29|2000-08-29|Refill bag having high gloss and manufacturing method thereof|