JP2009172776A - Waterproof moisture permeable fabric, method for manufacturing waterproof moisture permeable fabric, and rainwear using waterproof moisture permeable fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof moisture permeable fabric which is lightest in weight as rainwear for outdoor applications such as a parka or a raincoat or as its cloth and has high tensile strength and expansion properties, a method for manufacturing the waterproof moisture permeable fabric, and the rainwear using the waterproof moisture permeable fabric. <P>SOLUTION: A surface cloth 3 is arranged on one side 2a of a porous resin film 2, and a back cloth 4 composed of stitches with hexagons connected is arranged on the other side 2b of the film 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention uses a waterproof and breathable fabric that is the lightest, has the highest tensile strength and stretchability, and a method for producing the waterproof and breathable fabric, and the waterproof and breathable fabric as outdoor wear such as a jacket or raincoat. Related to rainwear.

Conventionally, for rainwear for outdoor use such as jacquard and raincoat, moisture permeability and breathability are required in addition to waterproofness, so durable polymer film is waterproof and breathable as such waterproof and moisture permeable fabric. There is known a film in which a front fabric is laminated on the front surface and a back fabric is laminated on the back surface (Patent Document 1). However, outdoor rainwear such as jackets and raincoats are highly demanded for weight reduction in addition to waterproof and moisture permeability, and have been developed in which a fabric surface fabric and a tricot knitted back fabric are laminated (Patent Literature) 2) It describes that a 22 decitex tricot knitted fabric is bonded to the outer fabric.
Japanese Patent No. 4015434 Japanese Patent Laid-Open No. 2002-227011

  By the way, as for rainwear and fabric for outdoor use such as jackets and raincoats, further lightness is required, and these rainwear exhibit high strength against pulling force applied in all directions. Is required. In addition, a material that exhibits high elasticity and good comfort is desired.

  However, the so-called tricot cloth of Patent Document 2 has a problem that although it exhibits stretchability in the direction of knitting, the strength is not sufficient with respect to the pulling force applied in all directions and the stretchability is not exhibited. Was. As golf wear and leisure wear, weight reduction is highly demanded, but it is said that conventional products cannot reduce weight further in terms of weight reduction. It is a fact.

  On the other hand, when trying to further reduce the weight of outdoor clothes such as jacquard and raincoats and their fabrics, we devised the manufacturing method, that is, the selection of materials, the method of application, and the method of resin processing. Without it, it is impossible to make further light weight, that is, to make a light and durable rainwear and fabric for outdoor use.

  Accordingly, an object of the present invention is to provide a waterproof and moisture-permeable fabric that is lightweight and has high tensile strength and stretchability, and a method for producing a waterproof and moisture-permeable fabric, and waterproofing, as outdoor clothing such as jacquard and raincoat and its fabric. An object of the present invention is to provide rainwear using a moisture permeable fabric.

  The waterproof and moisture-permeable fabric of the present invention is characterized in that a front fabric is disposed on one surface of a porous resin film, and a back fabric comprising a continuous polygon is disposed on the other surface of the resin film. And As the back fabric of the stitch in which the polygons are continuous, a triangle, a rectangle, a hexagon, or a combination of an octagon and a rectangle can be applied.

  According to the present invention, since the front fabric is arranged on one surface of the porous resin film, and the back fabric of the stitch having a continuous polygon is arranged on the other surface of the resin film, the conventional so-called It is lighter than the tricot fabric and exhibits a higher tensile force than the conventional tricot fabric with respect to the tensile force, and has high stretchability and good comfort. In addition, as one of the methods for manufacturing rainwear, there is a manufacturing method in which a sealing tape is bonded, but the sealing material of the sealing tape is improved because the opening ratio of the backing fabric that becomes the bonding surface to which the sealing tape is bonded is high. There are also advantages.

  According to the present invention, the backing fabric is composed of a stitch having a continuous hexagon, and is arranged after being cured with a resin liquid containing polyester as a main component. Triangles, quadrilaterals and hexagons have the same shape that can be spread without gaps compared to knitting methods such as octagons and circles. Continuous stitches (also referred to as honeycomb structures) require the least amount of material during manufacturing and exhibit high strength against omnidirectional tensile forces. The hexagonal continuous stitch is arranged after being cured with a resin liquid containing polyester as a main component, thereby imparting appropriate strength to the hexagonal knitted fabric and dimensional stability of the backing fabric. Increases nature.

  As the present invention, the length of one side of the hexagon is substantially equal, the length of the one side is 0.5 mm to 5.0 mm, and the fineness of the yarn constituting the hexagon is 44 dtex or less. It is characterized by. Furthermore, it is preferable that the length of one side of the hexagon is about 1 mm, and the fineness of the yarn constituting the hexagon is 22 dtex or less.

  According to these present inventions, a lightweight fabric can be obtained while maintaining the tensile strength required for rainwear.

  On the other hand, in the method for producing a waterproof and moisture-permeable fabric of the present invention, after applying an adhesive to one surface of a porous resin film and sticking a front fabric, a back fabric composed of stitches in which polygons are continuous is described above. It is characterized in that it is affixed to the other surface of the porous resin film to form a single fabric.

  The lining of stitches with continuous polygons has a high opening ratio, and if adhesive is printed on this lining with a roller or brush, the adhesive is clogged or the adhesive is not partially applied. Will occur. In addition, if you try to attach the backing fabric to the porous resin film before the front fabric, the porous resin film and the backing fabric are both lightweight and thin, so the target is not determined from each other, resulting in misalignment. Wrinkles may occur. Therefore, the present invention is manufactured by the above method. The adhesive applied to the other surface of the porous resin film is preferably applied in a multipoint manner. By applying the adhesive in a multipoint manner, an extra adhesive is not applied to a portion where the backing fabric is not adhered, and further weight reduction is achieved.

  According to the present invention, the backing fabric is composed of a stitch having a continuous hexagon, and is arranged after being cured with a resin liquid containing polyester as a main component. A so-called tulle knitting can be applied to the hexagonal knitted fabric. According to the present invention, the hexagonal knitted fabric has an appropriate hardness by being arranged after being cured with a resin liquid containing polyester as a main component, and with the other surface of the porous resin film. Misalignment and wrinkles at the time of bonding are eliminated, and uniform bonding can be achieved.

  According to the waterproof and moisture-permeable fabric of the present invention, it is lighter than a conventional so-called tricot fabric, exhibits a higher tensile force than a conventional tricot fabric, has high stretchability, and has a high elasticity. The comfort is also improved. By using a lining fabric consisting of continuous hexagonal stitches, the material required for the lining fabric is minimized, and it exhibits high strength against omnidirectional pulling force. When cured, the hexagonal knitted fabric is imparted with an appropriate strength. The length of one side of the hexagon is substantially equal, the length of the one side is 0.5 mm to 5.0 mm, and the fineness of the thread constituting the hexagon is 44 dtex or less, The length of one side of the hexagon is about 1 mm, and the fineness of the yarn constituting the hexagon is 22 dtex or less, so that a lightweight fabric can be maintained while maintaining the tensile strength necessary for rainwear. can do.

  Further, according to the method for producing a waterproof and moisture-permeable fabric of the present invention, a back fabric comprising a stitch having continuous polygons after applying an adhesive to one surface of a porous resin film and attaching a front fabric. Is stuck to the other surface of the porous resin film to form a single cloth, which causes problems such as clogging of the adhesive in the knitting or partial application of the adhesive. The resulting fabric is uniform and free of wrinkles. According to the present invention, a waterproof and moisture-permeable fabric that is lightweight and has high tensile strength and stretchability, a waterproof and moisture-permeable fabric manufacturing method, and a waterproof and moisture-permeable fabric are used as outdoor clothes such as jackets and raincoats and fabrics according to the present invention. The rainwear used is realized.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(First embodiment)
Fig.1 (a) is a schematic diagram which shows typically the back surface of the fabric of this Embodiment. FIG.1 (b) is the sectional view on the AA line of Fig.1 (a). The waterproof and moisture-permeable fabric 1 of the present embodiment has a back made of a stitch in which a surface fabric 3 is arranged on one surface 2a of a porous resin film 2 and polygons are continuous on the other surface 2b of the resin film 2. Dough 4 is arranged.

  The porous resin film 2 is a polymer film, such as polyurethane resin, acrylic resin, polyvinyl chloride resin, polyester resin, polyethylene resin, polypropylene resin, fluorine-containing resin, polyamide resin, polyimide. Based resins and the like.

  As the front fabric 3, a woven fabric or a knitted fabric is used. The material of the front fabric is natural fiber, synthetic fiber, mixed fiber or the like. Examples of the synthetic fiber include polyamide (nylon), polyester, polyurethane, polyolefin, polyvinyl chloride, polyvinylidene chloride, polyfluorocarbon, and polyacrylic fibers. As said natural fiber, fibers, such as cotton and silk, are used. Note that the front fabric may be subjected to water repellent treatment, antistatic treatment, and the like.

  As the back fabric 4, a continuous polygonal knitted fabric 4 is arranged. As the back fabric 4 of the stitch in which the polygon is continuous, a triangle, a quadrangle, a hexagon, or a combination of an octagon and a quadrangle is applicable (FIG. 2). As the material of the polygonal continuous knitted fabric 4, nylon, polyester, rayon or the like is used. The polygonal continuous knitted fabric 4 can reduce the weight of the laminated fabric as compared with a woven fabric or the like, and can be made of less material. Nylon is highly durable and suitable as a material for the knitted fabric 4.

  FIG. 2 is a diagram illustrating an example of a continuous knitted fabric 4 having a polygonal shape. 2A is an example in which triangles are combined, FIG. 2B is an example in which squares are combined, and FIG. 2C is an example in which hexagons are combined. FIG. 2D shows an example in which an octagon and a quadrangle are combined.

  The hexagons shown in FIG. 2 (c) have substantially the same length on one side, the length of one side is 0.5 mm to 5.0 mm, and the fineness of the threads 41 constituting the hexagons is as follows. 44 dtex or less. Furthermore, the length of one side of the hexagon is about 1 mm, and the fineness of the yarn constituting them is 22 dtex or less, so that a lightweight fabric can be maintained while maintaining the tensile strength required for rainwear. can do.

(First manufacturing method)
In the present embodiment, a hexagonal continuous knitted fabric 4 is used, and this knitted fabric 4 is appropriately colored (dyed), and then impregnated with a resin liquid containing polyester as a main component and cured to form a backing fabric 4 did. Examples of the resin liquid material include polyester, acrylic, polyurethane and the like. Polyurethane is soft and uncomfortable, and acrylic is not preferable because it is hard and brittle. The hexagonal knitted fabric 4 is moderately hardened by being impregnated with a resin liquid containing as a main component and cured, and is comfortable to wear.

  The first method for producing the waterproof and moisture-permeable fabric 1 is to apply the adhesive 5A (5) to one surface 2a of the porous resin film 2 and stick the front fabric 3, and then the porous resin. After the adhesive 5B (5) is applied to the other surface 2b of the film 2, the back fabric 4 of the stitch having a continuous polygon is pasted and dried, and then the adhesive is cured, and one piece of fabric Set to 1. The adhesives 5A and 5B can be bonded without any problem even if they are made of different materials. However, by making the adhesives 5A and 5B the same adhesive 5, one surface 2a of the porous resin film 2 and Since the thermal contraction rate of the adhesive 5 arranged on the other surface 2b matches, it becomes difficult to generate wrinkles.

  As the adhesives 5A and 5B (5), polyvinyl alcohol, polyacrylamide, polyethylene oxide, polyurethane, aqueous vinyl urethane, carboxymethyl cellulose, and the like are applicable. When the porous resin film 2 is made of a polyurethane resin, a high adhesive force and bending follow-up performance can be obtained by using a polyurethane resin for the adhesive 5.

  As a method for applying the adhesive 5, for example, there is a method in which the polyurethane-based adhesive 5 is applied to the other surface 2 b of the porous resin film 2 with a gravure roll, and the lining 4 is bonded thereon and pressure-bonded with a roll. is there. By applying the adhesive 5 in a multipoint manner, extra adhesive is not applied where the backing fabric 4 is not bonded, and further weight reduction is achieved. In addition, the method of spraying the urethane type adhesive agent 5 on the porous resin film 2, and match | combining the back fabric 4 on it, and crimping | bonding with a roll etc. can also be considered.

  After the adhesive 5 is applied to the other surface 2b of the resin sheet 2, the hexagonal knitted fabric 4 is adhered and dried, and then the adhesive 5 is thermally cured. If it sticks in this way, the position shift and wrinkle at the time of bonding with the porous resin film 2 can be eliminated, and it can stick uniformly.

Example 1
The porous polyurethane film 2 was used, and the front fabric 3 was a lip top structure using nylon threads. The fabric weight of the surface fabric 3 is about 35 g / m ² . As the backing fabric 4, a nylon knitted fabric 4 having regular hexagons was used. The length of one side of the regular hexagon of the knitted fabric 4 is about 1 mm, and the fineness thereof is 22 denier. The knitted fabric 4 was dyed in advance and then impregnated with a resin liquid containing polyester as a main component to be cured to obtain a backing fabric 4. By impregnating and curing a resin liquid containing polyester as a main component, an appropriate hardness was obtained on the regular hexagonal knitted fabric 4, and it was possible to evenly adhere at the time of bonding. The basis weight of the waterproof and moisture-permeable fabric 1 produced in this way was 74.1 g / m ² .

  FIG. 3 is a diagram showing an example of a rain suit constructed using the waterproof and moisture-permeable fabric 1 to which the present invention shown in Example 1 is applied.

(Comparative example)
The difference from the first embodiment is only that a half tricot knitted fabric is used as the back fabric 4. The basis weight in this case was 81.2 g / m ² .

In addition to the above weight, Table 1 shows the measured moisture permeability, water repellency, washing shrinkage, and tear strength.

As is clear from Table 1, the basis weight of Example 1 was about 10% smaller than that of the comparative example, but the mechanical strength represented by washing shrinkage and tear strength could be maintained.

1 is a schematic diagram of a waterproof and moisture-permeable fabric according to an embodiment of the present invention. It is a figure which shows the example of the knitted fabric with which the polygon of the said one Embodiment was continuous. It is a figure which shows the example of the rainwear comprised using the waterproofing moisture-permeable fabric of the said one Embodiment.

Explanation of symbols

1 waterproof / breathable fabric,
2 porous resin film,
3 Table fabric,
4 Back fabric (hexagonal continuous knitted fabric),
41 Yarn (yarn forming hexagon)

Claims (7)

  A waterproof and moisture-permeable fabric characterized in that a front fabric is disposed on one surface of a porous resin film, and a back fabric comprising a stitch having continuous polygons is disposed on the other surface of the resin film.   2. The waterproof and moisture-permeable fabric according to claim 1, wherein the backing fabric is composed of stitches having a continuous hexagonal shape and is cured after being cured with a resin liquid mainly composed of polyester.   The length of one side of the hexagon is substantially equal, the length of the one side is 0.5 mm to 5.0 mm, and the fineness of the yarn constituting the hexagon is 44 dtex or less. Item 3. A waterproof and moisture-permeable fabric according to Item 2.   The waterproof and moisture-permeable fabric according to claim 2, wherein a length of one side of the hexagon is about 1 mm, and a fineness of a thread constituting the hexagon is 22 dtex or less.   The rainwear comprised using the waterproof moisture-permeable cloth of any one of the said Claims 1 thru | or 4.   After applying an adhesive on one side of the porous resin film and sticking the front fabric, a backing fabric consisting of a continuous polygon is pasted on the other side of the porous resin film. A method for producing a waterproof and moisture-permeable fabric, characterized in that it is a single fabric. The method for producing a waterproof and moisture-permeable fabric according to claim 6, wherein the back fabric is formed after a hexagonal continuous stitch is cured with a resin liquid containing polyester as a main component.

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