JP2010209491A - Moisture permeable waterproof fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new moisture permeable waterproof fabric capable of being used as a single piece material even without using a lining, and capable of exhibiting a pearly gloss and also a rainbow color effect as a designing property. <P>SOLUTION: The moisture permeable waterproof fabric is formed by sequentially laminating a moisture permeable waterproof membrane containing an organic pigment and/or inorganic coloring pigment as a first layer and a non-porous membrane containing an inorganic pearly pigment as a second layer on at least the one side surface of a fibrous fabric. Especially, at least one of the moisture permeable waterproof membrane and non-porous membrane is preferably provided as a pattern shape. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a moisture-permeable and waterproof fabric suitable as a clothing material applied to sports clothing, winter clothing, mountaineering clothing, casual clothing, and the like.

  A moisture-permeable and waterproof fabric having both moisture permeability and waterproofness has a function of releasing water vapor generated by perspiration from the body to the outside of the clothes and a function of preventing rain from entering the clothes. Such a moisture-permeable and waterproof fabric is used as a material for sports clothing, cold clothing, and the like, and among them, it is suitable as a material for clothing for sports and outdoor where the sweating amount accompanying exercise is relatively large. Such moisture-permeable and waterproof fabrics are well known such as high-density woven fabrics in which yarns are woven in high density, and those in which a resin film made of polyurethane, polyester, polyamide, polytetrafluoroethylene or the like is provided on one side of a fiber fabric. It has been.

  In recent years, there has been a need as a so-called single piece for sewing a moisture-permeable and waterproof fabric without using a lining from the viewpoint of reducing the weight of the material and reducing the cost. However, when the moisture-permeable and waterproof fabric is used as a single piece, it is preferable to impart designability to the moisture-permeable and waterproof fabric in terms of enhancing the commercial value. In this case, it is general to give a predetermined design property to the fiber fabric and to have a good design property as a whole.

  For example, Patent Document 1 discloses a camouflaged fabric having a camouflage pattern on one surface of a fiber fabric and a moisture-permeable waterproof film on the other surface.

  Further, Patent Document 2 discloses an antifouling colored fabric in which one surface of a fiber fabric is printed and a plurality of functional films including a moisture permeable waterproof film are provided on the other surface.

JP 2001-55669 A JP 2001-73278 A

  The camouflage processed fabric described in Patent Document 1 is not only lightweight and durable, but also has a certain level of moisture permeability and waterproofness, and the camouflage pattern is a pattern that gathers support mainly among young people. It seems that it has the character as a wet waterproof fabric. However, this fabric is used as a material for camouflage clothing in military applications, and is obtained by a special textile printing method by selecting a special pigment. Etc. Therefore, it is significantly different from general clothing in terms of cost, and above all, use different from the original purpose of military use is not preferable from the viewpoint of social safety and order.

  In the antifouling colored fabric described in Patent Document 2, a fiber fabric is interposed between the printing surface and the functional film. With such a configuration, it is possible to suppress the amount of the dye that attempts to move from the printed surface to the functional film, and thus it is possible to suppress the deterioration of the design due to fading or color fading. Therefore, this antifouling colored fabric also appears to have the character of a single piece of moisture permeable waterproof fabric. However, when using a breathable waterproof fabric as a single piece, it is common to use the resin film on the inside (body side), and there is a strong need for design on the inside as well as on the outside of the clothes. is there. In this respect, the colored fabric is printed on the outer side, so that the design can be imparted to the outer side of the garment. However, since the inner side is simply formed by laminating a plurality of functional films, it cannot meet the needs.

  The present invention eliminates the drawbacks of the prior art as described above, and can be used as a single piece without using a lining, and is a novel moisture-permeable waterproof material that exhibits an iris effect as well as pearly luster as a design. Providing a fabric is a technical problem.

The present invention achieves the above-mentioned problems and has the following configuration. That is,
(1) A moisture permeable waterproof film containing an organic pigment and / or an inorganic colored pigment is sequentially laminated on at least one surface of a fiber fabric, and a nonporous film containing an inorganic pearl pigment is sequentially laminated as a second layer. A moisture-permeable waterproof fabric characterized by being made.
(2) A moisture-permeable and waterproof fabric, wherein either one of the moisture-permeable and waterproof membrane or the nonporous membrane is provided in a pattern.

  In the present invention, since the resin layer containing the inorganic pearl pigment is laminated on the colored moisture-permeable waterproof membrane, an rainbow-like effect as well as pearly luster can be obtained as a design property. For this reason, if the fabric of the present invention is used, it is possible to express the design on the inner side of the clothes, which cannot be achieved with the conventional moisture-permeable and waterproof fabric. In the present invention, by particularly forming the resin film in a pattern shape, contrast and gradation are promoted, and the expression of design can be made more varied.

  Hereinafter, the present invention will be described in detail.

  In the moisture permeable waterproof fabric of the present invention, a fiber fabric is used as the base fabric.

  Examples of the fiber fabric include those that can be used as garment materials such as woven fabrics, knitted fabrics, and nonwoven fabrics. Examples of the fibers constituting the fabric include polyamide-based synthetic fibers represented by nylon 6 and nylon 66, and polyethylene terephthalate. Examples thereof include polyester-based synthetic fibers, polyacrylonitrile-based synthetic fibers, polyvinyl alcohol-based synthetic fibers, semi-synthetic fibers such as triacetate, and mixed fibers such as nylon 6 / cotton and polyethylene terephthalate / cotton.

  In the present invention, one side or both sides of the fiber fabric may be water-repellent. This is because the resin solution used when forming the moisture permeable waterproof membrane as the first layer can be prevented from penetrating into the fabric. Such water-repellent finishing is particularly effective when the fiber fabric is thin or when direct coating is applied.

  As the water repellent used for water repellent processing, conventionally known ones such as polysiloxane water repellent and fluorine water repellent can be used, and generally used padding methods, spray methods, etc. can be applied. . When particularly good water repellency is required, a fluorinated water repellent is used. Preferably, for example, a 5% aqueous dispersion of a fluorinated water repellent emulsion “AG7000 (trade name)” manufactured by Asahi Glass Co., Ltd. Can be applied by a padding method at a wet pickup rate of 35%, followed by drying and heat treatment at 150 to 170 ° C. for 30 seconds to 2 minutes.

  The water-repellent treatment is effective in suppressing the penetration of the resin solution into the fabric, but when it is desired to further suppress the penetration, the fiber fabric may be calendered after the water-repellent treatment. For calendar processing, a calendar machine having a mirror roll is generally used.

  In the present invention, a moisture permeable waterproof membrane containing an organic pigment and / or an inorganic colored pigment is laminated as a first layer on at least one side of the above-described fiber fabric.

  Examples of the organic pigment in the present invention include soluble azo pigments such as brilliant carmine 6B, lake red C, and permanent red 2B, insoluble azo pigments such as first yellow, disazo yellow, and naphthol red, chromophthal yellow, and chromophthal red. Condensed azo pigments such as, phthalocyanine pigments such as phthalocyanine blue and phthalocyanine green, slen pigments such as anthrapyrimidine yellow, perinone orange and perylene red, quinacridone pigments such as quinacridone red, quinacridone violet and quinacridone magenta, phthaloyl Anthraquinone pigments such as amide yellow, disperse violet and indanthrone blue, and dioxazine pigments such as dioxazine violet are used. It can be.

  Examples of inorganic coloring pigments include oxide pigments such as cobalt blue, titanium white, and titanium yellow, hydroxide pigments such as yellow ocher, alumina white, and viridian, and sulfides such as cadmium yellow, cadmium red, and vermilion. Examples thereof include silicate pigments such as pigments, ultramarine, talc and white carbon, and carbon-based pigments such as ivory black, lamp black and carbon black.

  As the usage-amount of the said pigment, it is preferable to use in the ratio of 1-10 mass parts with respect to 100 mass parts of resin in any of organic and inorganic coloring.

  Moreover, as a form of the moisture-permeable waterproof membrane containing the above-mentioned pigment, either a nonporous membrane or a microporous membrane is usually selected. Further, depending on the purpose, two or more layers may be laminated to form a moisture permeable waterproof membrane corresponding to the first layer, but in general, only one of the above membranes is laminated.

  The moisture-permeable waterproof membrane is generally composed of a synthetic resin, and usually a resin membrane formed of a polyurethane-based resin, an acrylic-based resin, a polyester-based resin, or the like is used alone or in combination. Among these, from the viewpoints of texture, moisture permeability, cost, and the like, a polyurethane-based resin is suitable as a resin constituting the moisture-permeable waterproof film. The polyurethane-based resin refers to a resin containing 50% or more of a polyurethane resin, and naturally includes a polyurethane resin composed only of a polyurethane component.

  Examples of the resin that can be used in combination with the polyurethane resin include polyacrylic acid, polyvinyl chloride, polystyrene, polybutadiene, polyamino acid and the like, and copolymers thereof, and compositions modified with fluorine or silicon are also examples. Can be used.

  The polyurethane component is a copolymer obtained by reacting polyisocyanate and polyol. As the isocyanate component, aromatic diisocyanate, aliphatic diisocyanate, alicyclic diisocyanate and the like are used alone or in combination. Specifically, tolylene 2,4-diisocyanate, 4,4'-diphenylmethane diisocyanate, 1,6-hexane diisocyanate, 1,4-cyclohexane diisocyanate or trifunctional or higher isocyanate is used alone or in combination.

  On the other hand, polyether polyol, polyester polyol, etc. are used as a polyol component. As the polyether polyol, for example, polyethylene glycol, polypropylene glycol, polytetramethylene glycol and the like are used alone or in combination. Examples of the polyester polyol include diols such as ethylene glycol and propylene glycol, reaction products with dibasic acids such as adipic acid and sebacic acid, and ring-opening polymers such as caprolactone.

  Furthermore, in the present invention, for the purpose of improving the adhesion between the fabric and the moisture-permeable waterproof membrane and improving the strength of the moisture-permeable waterproof membrane, it is desirable to use a compound having a high affinity with the moisture-permeable waterproof membrane, An isocyanate compound can be preferably used as the compound.

  As the isocyanate compound, 1 mol of tolylene 2,4-diisocyanate, diphenylmethane diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, or these diisocyanates and an active hydrogen-containing compound (for example, trimethylolpropane, glycerin, etc.) Triisocyanates obtained by addition reaction with can be used.

  The isocyanates may be in a form in which an isocyanate group is liberated, or may be in a form in which an additional block is formed with phenol, lactam, methyl ketone, etc., and dissociated by heat treatment. What is necessary is just to use properly according to.

  The amount of the isocyanate compound to be added and mixed is preferably 0.1 to 10 parts by mass with respect to 100 parts by mass of the resin. If the amount used is less than 0.1 parts by mass, the effect is small in terms of adhesion and strength, and if it exceeds 10 parts by mass, the texture tends to be hard, and both are not preferred.

  In the moisture permeable waterproof fabric of the present invention, the second layer is laminated on the first layer described above, and the second layer also belongs to the moisture permeable waterproof membrane. However, the first layer may be a microporous membrane, whereas the second layer needs to be a nonporous membrane. This is because the second layer is required to have transparency so as not to hinder the design properties of the first layer. The microporous film is not preferable as the second layer to be laminated because it is structurally poor in transparency.

  The second layer contains an inorganic pearl pigment. In the present invention, since the first layer is colored, this alone is advantageous in terms of design, but since the second layer containing the inorganic pearl pigment is further laminated on the first layer, it changes to gloss and texture. This is more advantageous in terms of design. In particular, the design properties can be further improved by appropriately selecting the type of the pearl pigment according to the pigment contained in the first layer.

  Similarly to the first layer, the second layer is generally composed of a synthetic resin, and the resin composition is preferably the same or of the same type as that of the first layer from the viewpoint of processability and adhesion. Therefore, a polyurethane resin is preferably employed in the second layer.

  The inorganic pearl pigment in the present invention is obtained by coating a natural mica flake with a metal oxide such as titanium oxide or iron oxide, and a pearly luster is obtained by multiple reflection of incident light. Both the inorganic pearl pigment and the inorganic color pigment belong to the inorganic pigment, but in addition to their completely different structures, the former is for the purpose of imparting gloss, while the latter is for the purpose of coloring. Both are clearly distinguished.

  Among inorganic pearl pigments, natural mica flakes coated with titanium oxide are specifically manufactured by Merck Japan, “Iriodin 100 Silver Pearl (trade name)”, “Iriodin 111 Rutile Fine Satin (trade name)”. ”,“ Iriodin 153 Flash Pearl (product name) ”,“ Iriodin 183 Supernova White (product name) ”,“ Iriodin 205 Rutile Platinum Gold (product name) ”,“ Iriodin 225 Rhee product ” It is done. In addition, specific examples of the natural mica flakes coated with titanium oxide and further coated with iron oxide include “Iriodin 300 Gold Pearl (trade name)” and “Iriodin 302 Gold Stain (trade name)”. , “Iriodin 309 Medallion Gold (trade name)”, “Iriodin 323 Royal Gold Stain (trade name)” and the like. And as what coated iron oxide on the natural mica flakes, specifically, “Iriodin 500 Bronze (trade name)”, “Iriodin 504 Red (trade name)”, “Iriodin 520 Bronze Satin (trade name)” manufactured by the same company. And “Iriodin 530 Glitter Bronze (trade name)”.

  As a usage-amount of a pearl pigment, it is preferable to use in the ratio of 1-10 mass parts with respect to 100 mass parts of resin.

  In the moisture permeable waterproof fabric of the present invention, the two resin layers are laminated on at least one side of the fiber fabric as described above. In this case, the resin layer may be laminated on the entire one side of the fiber fabric. However, they may be laminated while drawing a certain pattern in a pattern. In particular, when the resin layer is provided in a pattern, contrast, gradation and the like are emphasized between the first layer and the second layer, and a variety of expressive design properties are exhibited. However, when both the first and second layers are laminated in a pattern, the fiber fabric may be exposed, and as a result, the moisture-permeable waterproof property of the moisture-permeable and waterproof fabric finally obtained may be reduced. In this case, only one of the first and second layers is formed into a pattern, and the other is provided over the entire surface.

  The pattern shape may be any pattern, but is preferably a dot pattern, a grid pattern, a line pattern, a diagonal pattern, a checkered pattern, a pyramid pattern, a turtle shell pattern, or a uniform pattern such as a specific trademark pattern, or Use patterns that are easy to demonstrate design, such as random patterns.

  The area occupied by the pattern pattern is preferably in the range of 2 to 80%, more preferably 5 to 50% with respect to the entire surface of the fiber fabric. If it is less than 2%, it tends to be difficult to exhibit the design property even if it is mainly composed of a fine line pattern. On the other hand, if it exceeds 80%, it becomes a form close to the entire surface, and there is a tendency that no further improvement in design property can be expected. Neither is preferred.

  Next, an example of manufacturing a moisture-permeable and waterproof fabric will be described.

  First, a fiber fabric is prepared, and after water-repellent processing and calendar processing as necessary, a first layer is formed.

  As the first layer, either a nonporous film or a microporous film is applied as described above.

  In the case of a non-porous film, basically, a resin solution containing a predetermined pigment is prepared, and a coating method using a knife coater, comma coater, reverse coater, etc., a gravure coating method using a mesh gravure roll, or a rotary Based on a printing method using a screen, a flat screen, or the like, the resin solution is applied to at least one surface of the fiber fabric and dried to form a target nonporous film.

Naturally, the application of the resin solution preferably fully considers the film thickness after drying. Specifically, the film mass after drying is preferably 1 to 10 g / m ² , more preferably 3 to 8 g / m ² . When the film mass is less than 1 g / m ^2, with waterproof moisture permeable waterproof fabric is decreased, color development of nonporous film may be reduced, whereas, if it exceeds 10 g / m ^2, moisture permeable The texture and moisture permeability of the waterproof fabric may be deteriorated, and neither is preferable.

It is possible to make the film mass within a desired range by appropriately selecting a coating device in addition to the viscosity and solid content concentration of the resin solution. For example, when a resin solution having a viscosity of 100 to 1500 mPa · s (25 ° C.) and a solid concentration of 10 to 30% by mass is used, adjusting the film mass to 1 to 3 g / m ² is advantageous for forming a thin film. In order to adjust the gravure coating and reverse coater to 3 to 10 g / m ^2, it is preferable to use a knife coater or a comma coater.

  Moreover, it is good to perform drying after application | coating at the temperature of 50-150 degreeC for 1 to 10 minutes.

  On the other hand, in the case of a microporous membrane, basically, N, N-dimethylformamide is used as a main solvent and a wet film is formed using a resin solution containing a predetermined pigment, or a water-in-oil type that also contains a pigment or If a dry film is formed using an oil-in-water type resin solution, the desired microporous film can be obtained.

  In the case of the former wet film formation, the solid concentration of the resin solution is preferably 15 to 35%, and the viscosity is preferably 5000 to 30000 mPa · s (25 ° C.).

  In the wet film formation, after applying the resin solution, the solid content contained in the resin solution is solidified. As the coagulation liquid used for coagulation, water or a water mixed solution containing a small amount of N, N-dimethylformamide is generally used. However, in the case of using a water mixture, it is preferable to use one having a concentration of about 5 to 30% in consideration of operability and environmental aspects. The temperature of the coagulation liquid is preferably 5 to 35 ° C., and the coagulation time is preferably 30 seconds to 5 minutes.

  After solidifying the solid content, it is washed with hot water at a temperature of 35 to 80 ° C. for 1 to 10 minutes for the purpose of promoting the removal of N, N-dimethylformamide. After hot water washing, it is dried at a temperature of 50 to 150 ° C. for 1 to 10 minutes.

  On the other hand, when dry film forming is performed using a water-in-oil type or oil-in-water type resin solution, the resin solution is applied to the fiber fabric using the same coating equipment as in the case of wet film formation. And then drying again at 100 to 150 ° C., the desired microporous membrane is obtained.

In the case of forming a microporous film, means using a device such as a comma coater or a knife coater is preferably applied as a coating means, regardless of whether it is wet or dry. Film mass of the microporous membrane finally obtained is preferably ^{10g / m 2 ~70g / m 2} , more preferably ^{15g / m 2 ~40g / m 2} . If the membrane mass is less than 10 g / m ² , the waterproof property of the moisture-permeable and waterproof fabric may be reduced. On the other hand, if it exceeds 70 g / m ² , the moisture permeability, texture, tear strength, etc. May decrease, both of which are not preferred. Therefore, when the resin solution is applied to the fiber fabric, the application amount should be determined in consideration of this point.

The second layer is a nonporous film containing an inorganic pearl pigment as described above, and is laminated on the first layer. By laminating the second layer, the outer appearance of the moisture-permeable and waterproof fabric becomes richer in design. In particular, when the first layer is a microporous film, light interference proceeds as compared with the case where the first layer is a non-porous film, and thus the gloss / texture of the fabric becomes gentler.
For the second layer, basically, the same means as in the case of forming the first layer as a nonporous film can be adopted. The film weight after drying ^is preferably ^{3g / m 2 ~15g / m 2} , 5g / m 2 ~10g / m 2 is more preferable.

  As described above, in the present invention, the first and second layers may be laminated in a pattern on a fiber fabric. In this case, a gravure roll, a rotary screen, a flat screen or the like is preferably applied as a coating device from the viewpoint of sharpening the outline of the pattern. In particular, when you want to obtain a pattern with a small dot diameter or wire diameter and excellent sharpness, use a resin solution with a viscosity of 100-1500 mPa · s (25 ° C) to suppress the fogging and spreading of the pattern as much as possible. 1000 to 10,000 mPa · s (25 ° C.) is preferably used. In addition, taking into account the depth of the gravure roll, the number of meshes of the screen, the wire diameter, and the like is also preferable for obtaining a clear pattern.

  The moisture-permeable and waterproof fabric of the present invention can be obtained as described above, but from the viewpoint of enhancing durability such as water repellency and waterproofness, the entire moisture-permeable and waterproof fabric is repelled after the formation of the second layer. Water processing may be performed. As the water repellent finish in this case, the above-described means for water repellent finish of the fiber fabric may be applied.

Hereinafter, the present invention will be described more specifically with reference to examples. In addition, the measurement of the performance of the fabric in an Example and a comparative example and evaluation were performed with the following method.
(1) Water pressure resistance Measured according to JIS L-1092 (high water pressure method).
(2) Moisture permeability Measured according to JIS L-1099 A-1 method (calcium chloride method).
(3) Designability
The design properties of the obtained fabric were evaluated in the following three stages based on visual observation.
◎: Very good ○: Excellent △: Slightly inferior

Example 1
After weaving a taffeta with a warp density of 115 yarns / 2.5 cm and a weft density of 95 yarns / 2.5 cm using nylon multifilament 78dtex48f as the warp and weft, this is scoured and dyed in the usual way (Nippon Kayaku Co., Ltd.) “Kayanol Blue NR (trade name)” manufactured by 1% omf was used. After dyeing, using a 5% aqueous dispersion of an emulsion-type fluorine-based water repellent, “Asahi Guard AG-7000 (trade name)” manufactured by Asahi Glass Co., Ltd., with a wet pickup rate of 35%, dried, Heat treatment was performed at 170 ° C. for 40 seconds. Then, using a calendering machine having a mirror roll, calendering was performed under conditions of a temperature of 170 ° C., a pressure of 300 kPa, and a speed of 30 m / min to obtain a fiber fabric as a base fabric.

Then, 20 g / m ² of a polyurethane resin solution having a solid content concentration of 22% and a viscosity of 8000 mPa · s / 25 ° C. having the composition shown in the following formulation 1 is applied to the entire surface of one side of the fiber fabric using a knife coater, and then 2 at 100 ° C. By drying for a minute, a nonporous film as the first layer was formed. The post-drying membrane mass of the nonporous membrane was 4 g / m ² .

(Prescription 1)
100 parts by mass of rack skin U2015-11 (manufactured by Seiko Kasei Co., Ltd., dry type polyurethane resin)
Methyl ethyl ketone 30 parts by mass Toluene 10 parts by mass Rezamin X 1 part by mass (produced by Daiichi Seika Kogyo Co., Ltd., isocyanate compound)
ALT-8149 Red 1 part by mass (Daiichi Seika Kogyo Co., Ltd., azo organic pigment dry polyurethane resin paste product)
ALT-896 Yellow 2 parts by mass (Daiichi Seika Kogyo Co., Ltd., azo organic pigment dry polyurethane resin paste product)

Subsequently, a polyurethane resin solution having a solid content concentration of 21% and a viscosity of 3000 mPa · s / 25 ° C. having the composition shown in Formula 2 below was applied to the entire surface of the nonporous film using a knife coater, and then 25 g / m ^{2 was} applied. By drying at 100 ° C. for 2 minutes to form a non-porous membrane as the second layer, the moisture-permeable and waterproof fabric of the present invention was obtained. The post-drying membrane mass of the nonporous membrane was 5 g / m ² .

  The obtained moisture-permeable and waterproof fabric had gold-like iris luster.

(Prescription 2)
100 parts by mass of rack skin U2524 (manufactured by Seiko Kasei Co., Ltd., dry type polyurethane resin)
20 parts by mass of rack skin U2524M (manufactured by Seiko Kasei Co., Ltd., matting agent)
Isopropyl alcohol 15 parts by mass Toluene 15 parts by mass Iriodin 201 Rutile Fine Gold 3 parts by mass (Merck Japan, Inc., inorganic pearl pigment)

(Example 2)
Except having changed the formation of the 1st layer as follows, it carried out similarly to Example 1 and obtained the moisture-permeable waterproof fabric of this invention. That is, a polyurethane resin solution having a solid content concentration of 21% and a viscosity of 15000 mPa · s / 25 ° C. having the composition shown in the following prescription 3 was applied to the entire surface of one side of a fiber fabric using a comma coater at 120 g / m ² and immediately immersed in water at 20 ° C. The resin solid content was solidified by immersing in 1 minute, then washed with hot water at 50 ° C. for 10 minutes, and dried at 130 ° C. for 2 minutes to form a microporous film as the first layer. The membrane weight after drying of the microporous membrane was 25 g / m ² .

  The obtained moisture-permeable and waterproof fabric produced gold-like iris luster as in Example 1.

(Prescription 3)
100 parts by weight of rack skin UJ8517
(Seiko Chemical Co., Ltd., ester type polyurethane resin with a solid content of 25%)
Rack skin UJ8518M 35 parts by mass
(Seiko Chemical Co., Ltd., moisture permeability improver with a solid content of 20%)
Rezamin X 1 part by mass (Daiichi Seika Kogyo Co., Ltd., isocyanate compound)
N, N-dimethylformamide 30 parts by mass BS1319 orange 2 parts by mass (manufactured by Dainichi Seika Kogyo Co., Ltd., wet polyurethane resin paste product of azo organic pigment)

Example 3
In forming the second layer, a grid-like gravure roll (depth 200 μm, grid angle 75 °, grid size 1 cm, occupied area 35%) is used instead of the knife coater, and the application of the resin solution is changed to a grid pattern. The moisture permeable waterproof fabric of the present invention was obtained in the same manner as in Example 1 except that the shape was changed.

  The obtained moisture-permeable and waterproof fabric was based on purple tone and had a gold-like lattice-like iris luster.

Example 4
The first layer was formed in the same manner as in Example 1 except that the gravure roll used in Example 3 was used instead of the knife coater, and that the resin solution was applied in the form of a lattice instead of the entire surface. A moisture-permeable waterproof fabric of the invention was obtained.

  The obtained moisture-permeable and waterproof fabric was based on a blue tone and had a gold-like lattice-like iris gloss.

(Example 5)
The second layer was formed in the same manner as in Example 2 except that the gravure roll used in Example 3 was used instead of the knife coater, and that the resin solution was applied in the form of a lattice instead of the entire surface. A moisture-permeable waterproof fabric of the invention was obtained.

  The obtained moisture-permeable and waterproof fabric had a lattice-like appearance and emitted a gold-like iris luster.

(Comparative Example 1)
A moisture-permeable waterproof fabric was obtained in the same manner as in Example 1 except that “ALT-8149 Red” and “ALT-896 Yellow” were omitted from Formulation 1. The external appearance of the obtained moisture-permeable and waterproof fabric was only a slight gold tone and gloss, and it was difficult to say that it was excellent in design.

(Comparative Example 2)
A moisture permeable waterproof fabric was obtained in the same manner as in Example 1 except that “Iriodin 201 Rutile Fine Gold” was omitted from Formulation 2. In the obtained moisture-permeable and waterproof fabric, the colored first layer is covered with the second layer having poor design properties, and the overall appearance of the fabric is such that the bluish orange color is slightly visible. It was difficult to say that it was excellent in properties.

(Comparative Example 3)
Except for omitting “BS1319 Orange” from Formulation 3, the same procedure as in Example 2 was performed to obtain a moisture-permeable and waterproof fabric. It was difficult to say that the appearance of the obtained moisture-permeable and waterproof fabric was excellent in design as in Comparative Example 1.

(Comparative Example 4)
A microporous film as the first layer was formed in the same manner as in Example 2 except that the coating amount was changed to 30 g / m ² instead of 120 g / m ² . The membrane weight after drying of the microporous membrane was 6 g / m ² . Next, a resin solution having the same composition as Formulation 3 was used except that 3 parts by mass of “Iriodin 201 Rutile Fine Gold” was used instead of “BS1319 Orange”, and the same conditions as those for forming the first layer in Example 2 were adopted. Then, a moisture permeable and waterproof fabric was obtained by laminating a microporous membrane as the second layer on the entire surface of the first layer.

  The obtained moisture-permeable and waterproof fabric had only a slight gold tone and glossiness, and it was difficult to say that it was excellent in design.

  The performance of each moisture permeable waterproof fabric obtained in the above Examples and Comparative Examples is shown in Table 1 below.

Claims (2)

  A moisture-permeable waterproof membrane containing an organic pigment and / or an inorganic colored pigment is laminated as a first layer, and a nonporous membrane containing an inorganic pearl pigment is laminated as a second layer on at least one side of the fiber fabric. A moisture-permeable and waterproof fabric characterized by the above. Either a moisture-permeable waterproof membrane or a non-porous membrane is provided in a pattern shape.