• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a multilayer material (1) comprising: a first layer (2) intended to be in contact with water when the material is used for manufacturing a diving garment, and a second layer (3), said second layer being between the first layer (2) and the skin of the plunger when the material is used to make a diving suit worn by a plunger, and a medial layer (4) between the first layer (2) and the second layer (3) the middle layer (4) comprising a waterproof material. The middle layer (4) comprises a layer of high density neoprene (5) having a thickness of between 0.1 mm and 1.0 mm. The invention also relates to a method for manufacturing said high density neoprene layer, comprising two successive compression stages, a method for manufacturing said multilayer material, a method for manufacturing a garment comprising said multilayer and a garment comprising said multilayer.
    公开号:CH714543A2
    申请号:CH00015/18
    申请日:2018-01-09
    公开日:2019-07-15
    发明作者:Schönenberger Franz；Braissant Chris
    申请人:Sf Tech Sarl；
    IPC主号:
    专利说明:

    Description
    The present invention relates to a multilayer material comprising a layer of high density neoprene, a method for manufacturing said layer of high density neoprene, a method for manufacturing said multilayer material, a method for manufacturing a garment comprising said multilayer and a garment comprising said multilayer.
    PRIOR ART [0002] Underwater diving clothing, for example dry suits, are manufactured by superposition or lamination of several layers of material: an outer protective layer in contact with water, an intermediate layer which ensures the waterproofing, and an inner protective layer in contact with the skin or undergarment of the diver. There are several types of clothing depending on the composition of these layers, for example "neoprene" and "trilam".
    So-called "neoprene" garments denote garments where the intermediate layer is composed of a thick layer of several millimeters of neoprene foam. The neoprene layer gives the garment a good seal and elasticity. Different densities of neoprene are used to make these garments: we talk about compressed, hyper-compressed or crushed neoprene depending on the density of the neoprene. Whatever the density, the neoprene is in the form of foam in which gas bubbles are trapped (air, nitrogen), which means that the neoprene is a compressible material: when diving, the size of the bubbles decreases, the neoprene compresses , its thickness decreases and thus its density increases. In diving, this change in density is a negative point because it modifies the buoyancy and the insulation of the material, these parameters having to be managed by the diver.
    Furthermore, the common point with existing neoprene clothing is that they have a thickness of several millimeters of neoprene to guarantee sealing and thermal insulation. Because of their thickness, this type of garment cannot be assembled using conventional assembly techniques in the textile field: they must be cut and assembled using techniques specific to this material, which considerably limits the cuts of clothing. achievable in neoprene.
    For example, the neoprene pieces are glued together with an adhesive and then sewn by a non-crossing stitch, as shown in FIG. 1a.
    Alternatively, a strip of material can be glued in order to mechanically join the two pieces of neoprene, without having to sew the neoprene pieces together, as shown in FIG. 1b.
    So-called "trilam" garments denote garments where the intermediate layer is a coating (rubber, butyl derivatives, polyurethane), the coating having the function of ensuring the waterproofness of the garment. The coating is applied to a layer of more resistant material (for example kevlar, cordura, polyester, nylon) to guarantee a certain solidity. This type of material is thin enough to use classic textile assembly cuts and techniques that provide clothing with ease of movement for the diver that cannot currently be achieved with neoprene clothing.
    However, the "trilam" lack elasticity and do not provide sufficient thermal protection compared to "neoprene".
    Thus, there is a need for a material for manufacturing underwater diving clothing which minimizes the drawbacks of existing "neoprene" and "trilam" clothing.
    Brief Summary of the Invention An object of the present invention is to provide a multilayer material that is free of or minimizes the limitations of known materials.
    Another object of the invention is to provide a multilayer material which can be compatible with conventional textile assembly techniques.
    According to the invention, these aims are achieved in particular by means of a multilayer material for manufacturing an underwater diving garment, the multilayer material comprising:
    - a first layer intended to be in contact with water when the material is used to make a diving suit, and
    a second layer, said second layer being between the first layer and the skin of the diver when the material is used to make a diving suit worn by a diver, and
    a middle layer between the first layer and the second layer, the middle layer comprising a waterproof material, characterized in that the middle layer comprises a layer of high density neoprene with a thickness of between 0.1 mm and 1.0 mm .
    CH 714 543 A2 This solution notably has the advantage compared to the prior art of providing a material having good elasticity and thermal insulation thanks to the layer of high density neoprene, said layer being thin enough for the material can be cut and assembled into underwater diving clothing by conventional textile assembly techniques, such as those used for "trilam".
    The high density neoprene layer is very thin, between 0.1 mm and 1.0 mm, which minimizes or even eliminates the negative effects of the increase in pressure on the neoprene, for example the variation buoyancy and thermal insulation, while ensuring the material is watertight.
    The present invention also improves the overall comfort of the diver.
    According to one embodiment, the high density neoprene has a minimum density greater than or equal to 400 kg.m -3 , for example between 400 kg.m -3 and 800 kg.m -3 , preferably a density included between 500 kg.m -3 and 700 kg.m -3 . The Applicant has discovered that a layer of neoprene with this density range and a thickness between 0.1 mm and 1.0 mm provides particularly satisfactory results, in particular in terms of ease of assembly and thermal insulation.
    Advantageously, the material can be assembled using conventional textile techniques because the neoprene layer is thin, that is to say between 0.1 and 1.0 mm. This facilitates the preparation. This also offers more possibilities in terms of cuts, in particular to guarantee a great flexibility of movement of the plunger in the garment.
    Advantageously, in one embodiment said high density neoprene is arranged to have a substantially constant density when diving; in other words it is compressed to have a substantially constant density when diving.
    The term "substantially" in the expression "substantially constant density" means a density which does not vary. This expression also designates a density which varies very slightly, the variation being less than 10%.
    In one embodiment, said high density neoprene is arranged to have a substantially constant density when diving, the terms "diving" designating a diving to a maximum depth less than or equal to 250 m, at a temperature of water between -2 ° C and +35 ° C, for a maximum immersion time less than or equal to 600 minutes.
    The second layer and the first layer are superimposed on each other. The first layer and the second layer can be directly overlaid on top of each other. Alternatively, there may be at least one additional layer between the first layer and the second layer. The multilayer material may include at least one additional layer between the first layer and the second layer. For example, the additional layer comprises titanium Ti.
    In one embodiment, the first layer and / or the second layer is / are covered with at least one additional layer. The additional layer may have either a composition identical to the first layer or the second layer, or a different composition.
    The first layer and the second layer are based on material having mechanical properties, for example elasticity or rigidity, allowing the material to conform to the shapes of the body of the plunger.
    In one embodiment, the first layer and / or the second layer is / are based on synthetic fiber chosen from polyamide, for example nylon, polyethylene (PE), polyester, and a mixture of these fibers . For example, the polyamide is chosen from nylon, kevlar® (registered trademark) or poly (p-phenyleneterephthalamide) (PPD-T), in particular kevlar (registered trademark).
    The first layer and the second layer may have the same composition or a different composition.
    The first layer and the second layer may have the same thickness or a different thickness.
    The first layer can be called the outer layer of the material, that is to say the layer between the middle layer and the water, for example in direct contact with water. The second layer may be the inner layer, that is, the layer between the middle layer and the skin of the diver.
    For example, the second layer is in contact with the skin of the diver or with the undergarment worn by the diver. The second layer serves as protection so as not to damage the middle layer of neoprene and to facilitate dressing.
    In one embodiment, the material has a total thickness of between 0.2 mm and 2.0 mm, preferably between 0.5 mm and 1.5 mm, preferably between 0.9 mm and 1.2 mm.
    According to one embodiment, the neoprene layer has a thickness between 0.1 mm and 1.0 mm, preferably between 0.4 mm and 0.6 mm.
    In one embodiment, the neoprene layer has a thickness between 0.4 mm and 0.6 mm, the total thickness of the multilayer material being between 0.5 mm and 2 mm.
    CH 714 543 A2 [0032] According to one embodiment, the neoprene layer is in one piece, said one-piece layer being produced by compression of a single layer of neoprene. This makes it possible to obtain a material with a constant density of neoprene in a section of multilayer material, in other words from the side in contact with the first layer towards the side in contact with the second layer.
    The invention also relates to a method for manufacturing a layer of high density neoprene intended to be used for manufacturing an underwater diving garment, the method comprising:
    i) provide an initial layer of neoprene foam;
    ii) compressing said layer in two successive stages:
    ii) a) a first compression step to form a layer of pre-compressed neoprene having a thickness of between 0.7 mm and 2.5 mm;
    ii) b) a second compression step for compressing the pre-compressed neoprene so as to obtain a layer of high density neoprene with a thickness of between 0.1 mm and 1.0 mm, the high density neoprene having a density at at least 1.5 times greater than the pre-compressed neoprene, preferably at least 1.8 times.
    The initial neoprene has a density less than the density of the pre-compressed neoprene, said pre-compressed neoprene having a density less than the high density neoprene.
    The initial layer can be uncompressed or compressed with a predetermined density. The initial layer is preferably in a single block, in other words a monolayer.
    Advantageously, this method makes it possible to obtain a layer of high density neoprene from an initial layer of neoprene. The Applicant has discovered that compression in two stages makes it possible to obtain a neoprene with a more homogeneous density than when the neoprene is compressed in a single stage. Advantageously, when the neoprene is compressed before the manufacture of a garment as in the present invention, the neoprene layer has a more homogeneous density than when the compression is made on a manufactured garment.
    In one embodiment:
    - the initial neoprene foam has a minimum density less than or equal to 220 kg / m 3 and a thickness of between 1.1 mm and 4 mm; and
    - The pre-compressed neoprene layer has a density between 220 kg / m 3 and 400 kg / m 3 and a thickness between 0.7 mm and 2.5 mm; and
    - the high density neoprene layer has a minimum density greater than or equal to 400 kg / m 3 and a thickness of between 0.1 mm and 1.0 mm.
    The Applicant has discovered that this embodiment makes it possible to obtain a layer of high density neoprene with particularly satisfactory properties, in particular in terms of ease of assembly and of thermal insulation.
    According to one embodiment, the parameters of the first compression are chosen to obtain a layer of precompressed neoprene having a density of between 220 kg / m 3 and 400 kg / m 3 and a thickness of between 0.7 mm and 2.5 mm. For example, the first compression is carried out at 300 ° C for 10 to 11 minutes.
    According to one embodiment, the second compression is carried out by applying a pressure of 10 kg / cm 2 to 50 kg / cm 2 for 12 hours to 48 hours.
    The invention also relates to a method for manufacturing a multilayer material usable for manufacturing an underwater diving garment, the method comprising:
    i) provide a layer of high density neoprene made according to the invention;
    ii) placing said layer of high density neoprene between a first layer and a second layer, said first layer intended to be the layer of clothing in contact with water, said second layer being between the first layer and the skin of the diver when the material is used to make a diving suit worn by a diver.
    The first layer and the second layer are arranged on the layer of high density neoprene. The term “dispose” means that the first layer, the second layer and the middle layer are superimposed at all points on one another, in other words laminated so as to be integral with each other, for example glued one on the 'other.
    Alternatively, the second compression can be carried out on a laminate comprising pre-compressed neoprene disposed between the first layer and the second layer. In this case, the invention relates to a method for manufacturing a multilayer material usable for manufacturing an underwater diving garment, the method comprising:
    CH 714 543 A2
    i) provide an initial layer of neoprene foam;
    ii) performing a first compression to compress the initial neoprene foam layer to form a layer of precompressed neoprene having a thickness of between 0.7 mm and 2.5 mm;
    iii) forming a laminate by placing said layer of pre-compressed neoprene between a first layer and a second layer, said first layer intended to be the layer of clothing in contact with water, said second layer being between the first layer and the skin of the diver when the material is used to make diving clothing worn by a diver;
    iv) performing a second compression step to compress the pre-compressed neoprene of the laminate so as to obtain a layer of high density neoprene with a thickness of between 0.1 mm and 1.0 mm, the high density neoprene having a density at least 1.5 times better than pre-compressed neoprene.
    In this process, the multilayer material is made from the laminate. A second compression is carried out on the laminate comprising the layer of pre-compressed neoprene sandwiched between the first layer and the second layer to obtain the multilayer material.
    The invention also relates to an underwater diving garment characterized in that the garment is made with a material according to the invention.
    In one embodiment, the multilayer material of the garment has a constant thickness. Advantageously, in the present invention, the material is compressed before assembly, so that the material of the garment has a constant thickness, even at the seams. When the garment is compressed after assembly, the material at the seams does not compress like the material outside the seams: the garment has a different thickness at the seams and outside the seams.
    According to one embodiment, said garment is chosen from combinations, hoods, slippers, gloves, preferably combinations.
    The invention also relates to a method for manufacturing an underwater diving garment, the method comprising:
    - provide several pieces of multilayer material according to the invention;
    - assembling the garment by securing said several pieces to each other using textile assembly techniques, for example simple stitching, open stitching, closed stitching, topstitched open or closed stitching, overlock stitching, English stitching, railway stitching , folded seams, field seams, zigzag seams, overlap stitching, chainstitch seams, bonded tape assembly.
    In the bonded strip assembly technique, a strip of material is bonded in order to mechanically join the two parts, without having to sew the parts together.
    According to the present invention, the conventional textile assembly methods are those which are compatible with textiles in general. These techniques are for example simple stitching, open stitching, closed stitching, open or closed stitching seams, overlock stitching, English stitching, railway stitching, folded stitching, field stitching, zigzag stitching, lap stitch stitching, stitching with chain stitch. These conventional assembly techniques are not applicable to existing neoprenes, in particular because the latter are too thick.
    The embodiments described for the material apply mutatis mutandis to the garment and to the processes for manufacturing neoprene, the multilayer material and the garment, and vice versa.
    Brief description of the figures Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:
    fig. 1 illustrate specific assembly techniques for existing neoprenes; fig. 2 shows a sectional view of the material according to the invention; fig. 3a, 3b, 3c compare the multilayer material according to the invention to existing neoprenes; fig. 4a, 4b, 4c, 4d represent examples of conventional textile assembly techniques applicable to the material according to the invention.
    Example (s) of embodiment of the invention [0051] FIG. 2 shows an embodiment of a multilayer material 1 according to the present invention, but the invention is not limited to this embodiment.
    CH 714 543 A2 The multilayer material 1 shown in FIG. 2 comprises a first layer 2 and a second layer 3. In this example, the first layer 2 is made of nylon, the second layer 3 being made of a layer of PE polyethylene. In embodiments not shown, the first layer 2 is based on PE polyethylene and / or Kevlar, the second layer 3 is based on PE polyethylene.
    In this example, the first layer has a thickness of 0.4 mm, the second layer having a thickness of 0.1 mm.
    The multilayer material 1 comprises a middle layer 4 between the first layer 2 and the second layer
    3. The middle layer 4 comprises a layer of high density neoprene 5. In this example, the layer of high density neoprene is 0.5 mm thick. Thus, in this example, the multilayer material has a total thickness of 1.0 mm.
    Figs. 3a, 3b, 3c represent sections of existing compressed neoprenes (fig. 3a and 3b) compared to the multilayer material 1 according to the invention (fig. 3c). The high density neoprene layer 5 is thinner than the neoprene layer in existing neoprenes. In addition, the size of the air bubbles trapped in the high density neoprene 5 is smaller than that of the bubbles in the existing neoprene, so that the high density neoprene layer is denser than the existing neoprene.
    As the high density neoprene layer 5 is thinner than the existing neoprene layers (see fig. 3a and 3b), it is possible to use conventional textile assembly techniques to make a garment of multilayer material 1 ( garment not shown in the figures). For example, some techniques are shown in Figs. 4a, 4b, 4c, 4d, but the invention is not limited to the techniques shown in these figures:
    fig. 4a shows a simple seam where two pieces of material 1 are superimposed and sewn by a seam;
    fig. 4b represents a double seam where two pieces of material 1 are superimposed and sewn by a double seam;
    fig. 4c represents a topstitched seam;
    fig. 4d represents a folded seam.
    Reference numbers used in the figures [0057]
    Multilayer material
    First layer
    Second layer
    Middle layer
    High density neoprene layer
    权利要求:
    Claims (18)
    [1]
    claims
    1. Multilayer material (1) for manufacturing an underwater diving garment, the multilayer material (1) comprising:
    - a first layer (2) intended to be in contact with water when the material is used to make a diving suit, and
    a second layer (3), said second layer being between the first layer (2) and the skin of the diver when the material is used to make a diving suit worn by a diver, and
    - a middle layer (4) between the first layer (2) and the second layer (3), the middle layer (4) comprising a waterproof material, characterized in that the middle layer (4) comprises a layer of high density neoprene (5) with a thickness between 0.1 mm and 1.0 mm.
    [2]
    2. Material (1) according to claim 1, in which the high density neoprene has a minimum density greater than or equal to 400 kg.m -3 , preferably a density of between 500 kg.m -3 and 700 kg.m - 3 .
    [3]
    3. Material (1) according to one of claims 1 or 2, wherein said high density neoprene (5) is arranged to have a substantially constant density when diving.
    [4]
    4. Material (1) according to one of claims 1 to 3, wherein said high density neoprene (5) is arranged to have a substantially constant density when diving at a maximum depth less than or equal to 250 m, at
    CH 714 543 A2 a water temperature between -2 ° C and +35 ° C, for a maximum immersion time less than or equal to 600 minutes.
    [5]
    5. Material (1) according to one of claims 1 to 4, in which the first layer (2) and / or the second layer is / are based on synthetic fiber chosen from polyamide, for example nylon, polyethylene ( PE), polyester, and a mixture of these fibers.
    [6]
    6. Material (1) according to one of claims 1 to 5, wherein the first layer (2) and / or the second layer (3) is / are covered with at least one additional layer.
    [7]
    7. Material (1) according to one of claims 1 to 6, in which the material (1) has a total thickness of between 0.2 mm and 2.0 mm, preferably between 0.5 mm and 1.5 mm, preferably between 0.9 mm and 1.2 mm.
    [8]
    8. Material (1) according to one of claims 1 to 7, in which the neoprene layer (5) has a thickness of between 0.1 mm and 1.0 mm, preferably between 0.4 mm and 0, 6 mm.
    [9]
    9. Material (1) according to one of claims 1 to 8, wherein the neoprene layer (5) is in one piece, said monoblock layer being produced by compression of a single layer of neoprene.
    [10]
    10. Method for manufacturing a layer of high density neoprene (5) intended to be used for manufacturing an underwater diving garment, the method comprising:
    i) provide an initial layer of neoprene foam;
    ii) compressing said layer in two successive stages:
    ii) a) a first compression step to form a layer of pre-compressed neoprene having a thickness of between 0.7 mm and 2.5 mm;
    ii) b) a second compression step for compressing the pre-compressed neoprene so as to obtain a layer of high density neoprene (5) with a thickness of between 0.1 mm and 1.0 mm, the high density neoprene having density at least 1.5 times higher than pre-compressed neoprene.
    [11]
    11. The method according to claim 10, in which:
    - the initial neoprene foam has a minimum density less than or equal to 220 kg / m 3 and a thickness of between 1.1 mm and 4 mm; and
    - The pre-compressed neoprene layer has a density between 220 kg / m 3 and 400 kg / m 3 and a thickness between 0.7 mm and 2.5 mm; and
    - the high density neoprene layer has a minimum density greater than or equal to 400 kg / m 3 and a thickness of between 0.1 mm and 1.0 mm.
    [12]
    12. Method for manufacturing a multilayer material (1) usable for manufacturing an underwater diving garment, the method comprising:
    i) provide an initial layer of neoprene foam;
    ii) performing a first compression to compress the initial neoprene foam layer to form a layer of precompressed neoprene having a thickness of between 0.7 mm and 2.5 mm;
    iii) forming a laminate by placing said layer of pre-compressed neoprene between a first layer (2) and a second layer (3), said first layer (2) intended to be the layer of clothing in contact with water, said second layer (3) being between the first layer (2) and the skin of the diver when the material is used to make a diving suit worn by a diver;
    iv) performing a second compression step to compress the pre-compressed neoprene of the laminate so as to obtain a layer of high density neoprene (5) with a thickness of between 0.1 mm and 1.0 mm, high density neoprene having a density at least 1.5 times higher than the pre-compressed neoprene.
    [13]
    13. The method according to claim 12, in which:
    - the initial neoprene foam has a minimum density less than or equal to 220 kg / m 3 and a thickness of between 1.1 mm and 4 mm; and
    - The pre-compressed neoprene layer has a density between 220 kg / m 3 and 400 kg / m 3 and a thickness between 0.7 mm and 2.5 mm; and
    - the high density neoprene layer has a minimum density greater than or equal to 400 kg / m 3 and a thickness of between 0.1 mm and 1.0 mm.
    [14]
    14. Method for manufacturing a multilayer material (1) usable for manufacturing an underwater diving garment, the method comprising:
    i) providing a layer of high density neoprene (5) manufactured according to one of claims 10 or 11;
    ii) disposing said layer of high density neoprene (5) between a first layer (2) and a second layer (3), said first layer (2) intended to be the layer of clothing in contact with water, said second layer (3) being between the first layer (2) and the skin of the diver when the material is used to make a diving suit worn by a diver.
    [15]
    15. Underwater diving clothing characterized in that the clothing is made with a multilayer material (1) according to one of claims 1 to 9.
    CH 714 543 A2
    [16]
    16. Garment according to claim 15, wherein the multilayer material (1) of the garment has a constant thickness.
    [17]
    17. Garment according to one of claims 15 or 16, wherein said garment being chosen from coveralls, hoods, slippers, gloves.
    [18]
    18. A method for manufacturing an underwater diving garment, the method comprising:
    -provide several pieces of multilayer material (1) according to one of claims 1 to 9;
    - assembling the garment by securing said several pieces to each other using textile assembly techniques, for example simple stitching, open stitching, closed stitching, topstitched open or closed stitching, overlock stitching, English stitching, railway stitching , folded seams, field seams, zigzag seams, overlap stitching, chain stitch seams, bonded tape assembly and a combination of these techniques.
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    同族专利:
    公开号 | 公开日
    CH714543B1|2021-07-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00015/18A|CH714543B1|2018-01-09|2018-01-09|Multilayer material to make a waterproof diving suit.|CH00015/18A| CH714543B1|2018-01-09|2018-01-09|Multilayer material to make a waterproof diving suit.|
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