JP2016013669A - Camouflage fabric and production method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camouflage fabric capable of exerting a sufficient camouflage effect not only in an early stage but after repeated washing and a preferable method of producing the camouflage fabric stably.SOLUTION: In a camouflage fabric, a fiber fabric, a metal thin film layer and a camouflage pattern colorant layer are laminated in this order, and a water-repellency agent and a silane coupling agent are adhered at least to the surface of the camouflage pattern colorant layer through a binder resin. The thickness of the metal thin layer is 0.01-1 μm, and the water repellency, based on the JIS L1092 spray method and after 20-time repetition of washing by the JIS L0217 103 method, is Grade 3 or higher.

Description

  The present invention relates to a fabric that exhibits an excellent camouflage effect with respect to infrared rays. Specifically, even if washing is repeated, the camouflage pattern on which the camouflage pattern on the surface is difficult to deteriorate and the camouflage pattern on the surface is difficult to fade. And a preferred production method.

  Several fabrics that exhibit a camouflage effect against infrared rays have been proposed so far.

  For example, in Patent Document 1, a metal thin film layer, a fine particle-containing resin layer, and a camouflage colorant-containing resin layer are formed in this order on the surface of a fiber fabric, and at the same time, the average thermal emissivity and glossiness are adjusted to a specific range. Thus, a fabric that can exhibit an excellent camouflage effect in the infrared region is disclosed. Furthermore, Patent Document 2 discloses a technique for further improving the camouflage effect by partially forming a metal thin film layer. Patent Document 3 discloses a technique for forming a metal thin film layer or a camouflage colorant-containing resin layer on the surface of a fiber constituting the fiber fabric for the purpose of improving the breathability and flexibility of the fabric as well as the camouflage effect. Has been.

Japanese Patent No. 4096760 Japanese Patent No. 4158387 Japanese Patent No. 4487554

  The camouflaged fabrics described in the above-mentioned patent documents exhibit excellent camouflage effects both in the infrared region and visually, and can be suitably used for clothes, tents, covers, etc. as field equipment. .

  Field equipment is usually used in forests, grasslands, deserts, etc., so it is likely that dirt will adhere to it and it is necessary to wash it regularly to maintain a good camouflage effect. However, when washing is repeated, there is a problem that the camouflage pattern on the fabric surface gradually fades and the camouflage effect is reduced. Although the camouflaged fabric described in the above-mentioned patent document exhibits an excellent camouflage effect in a state before washing (hereinafter, this state may be referred to as “initial”), no consideration is given to improving washing durability. The fact is that this problem has not been solved.

  The present invention solves the above-mentioned problems, and, at the beginning, of course, a camouflaged fabric that can exhibit a sufficient camouflage effect even after repeated washing, and a preferred method for stably manufacturing the camouflaged fabric It is a technical challenge to provide

  The present inventors have examined the cause of the fact that the camouflage effect excellent in washing durability cannot be obtained in the conventional camouflaged fabric, and the camouflage pattern colorant layer falls off and the metal thin film layer is eroded by the washing water flow. It came to the idea that it would be. Therefore, various studies were made on means for reducing the influence of the water flow, and it was found that if the surface of the colorant layer is water-repellent, the influence of the water flow can be repelled. However, by simply performing the water-repellent treatment, the initial purpose can be achieved, but sufficient washing durability cannot be obtained. For this reason, further examination was necessary. Therefore, when intensive studies were made, when a silane coupling agent was used in combination, it was surprisingly possible to impart washing durability to the water repellent effect, and the water repellent and silane coupling were fixed to the surface of the colorant layer via a binder resin. It was found that the washing durability can be further improved. The present invention has been completed by further studies based on these findings.

  That is, according to the present invention, first, a fiber fabric, a metal thin film layer, and a camouflage pattern colorant layer are laminated in this order, and at least the surface of the camouflage pattern colorant layer has a water repellent and a silane coupling agent. A camouflaged fabric fixed through a binder resin, wherein the thickness of the metal thin film layer is 0.01 to 1 μm, and after 20 repeated washings according to the JIS L0217 103 method, the repellency based on the JIS L1092 spray method. The gist of the fabric is a camouflaged fabric characterized by a water degree of 3 or higher.

  The fabric of the present invention exhibits an excellent camouflaging effect in the infrared region, is difficult to detect visually or in an infrared imaging device, and can be suitably used as a field equipment. And the fabric of this invention is excellent in washing | cleaning durability, and can show | play the outstanding camouflage effect after repeating washing.

  Moreover, according to the manufacturing method of this invention, said fabric can be produced with sufficient quality.

Hereinafter, the present invention will be described in detail.
The camouflaged fabric of the present invention is obtained by laminating a fiber fabric, a metal thin film layer, and a camouflage pattern colorant layer in this order.

  First, woven or knitted fabric, non-woven fabric or the like can be generally used as the fiber fabric, but is not limited to this, and any sheet-like material made of fibers can be used.

  Examples of the fiber material constituting the fiber fabric include nylon 6, nylon 66, polyethylene terephthalate, polybutylene terephthalate, polylactic acid, polyacrylonitrile, polyvinyl alcohol, vinylon, aramid, polyethylene, acetate, cotton, wool, and rayon. These materials are used alone or in combination.

  The fiber may contain various additives such as a matting agent, an antistatic agent, a flame retardant, an antibacterial agent, and a heat stabilizer as necessary.

  A metal thin film layer is laminated on the surface of the fiber fabric. A metal thin film layer is provided in order to express the camouflage effect with respect to an infrared imaging device. Examples of the metal constituting the thin film layer include titanium, stainless steel, nickel, copper, zinc, aluminum, and iron. In the present invention, these are used alone or in combination. Among these, an alloy of nickel and copper is preferable in terms of workability and performance.

  In the present invention, the thickness of the metal thin film layer is set in the range of 0.01 to 1 μm. If the thickness is out of this range, desired thermal characteristics cannot be obtained, and as a result, a sufficient camouflage effect cannot be exhibited for the infrared imaging apparatus. In particular, when the thickness of the metal thin film layer exceeds 1 μm, the texture and breathability of the fabric are also impaired. Also. In the present invention, a plurality of metal thin film layers may be laminated. In this case, the total thickness of the laminated metal films only needs to satisfy the above range.

  The metal thin film layer can be formed using a plating method, a vapor deposition method, a sputtering method, an ion plating method, or the like. The same layer can also be formed by separately forming a thin metal foil and transferring it to the fiber fabric via an adhesive later. In the present invention, a vapor deposition method and a sputtering method are preferable in terms of performance, and a sputtering method is particularly preferable.

  A metal thin film layer is laminated | stacked on the surface of a fiber fabric in the whole surface form or a partial form. In this case, if the thickness of the metal thin film layer has some variation, the thermal emissivity varies. As a result, it becomes easier to mix with the background, and the disguise effect of the fabric may be further improved. In order to provide variation in thickness, for example, the surface of the metal thin film layer may be etched in a full or partial manner. However, if the surface is etched too much, the thermal emissivity is greatly reduced, and on the contrary, the camouflage effect tends not to appear. For this reason, when performing an etching process, it is preferable to carry out in the range which does not impair the camouflage effect. The etching process includes a chemical etching process with a chemical process, an embossing process, and a physical etching process with a rubbing process.

  Moreover, when forming a metal thin film layer, it is good to calender the fiber fabric beforehand. By carrying out like this, a fiber fabric becomes smooth and the workability at the time of forming a metal thin film layer improves. Moreover, since the water-repellent performance can also be provided to the camouflaged fabric finally obtained, it is preferable.

  In the present invention, a camouflage colorant layer is further laminated on the metal thin film layer. By making the pattern of the same layer a camouflage pattern, visible light, that is, a visual disguise effect can be imparted, and by appropriately selecting a colorant constituting the same layer, a disguise effect for infrared rays can be imparted. In addition, in order to provide the camouflage effect with respect to infrared rays and visible light, it is not sufficient to provide a metal thin film layer having a predetermined thickness, and it is necessary to form a colorant layer together with the metal thin film layer.

  The camouflage pattern colorant layer is mainly composed of a camouflage pattern colorant, but preferably a supporting resin for supporting the colorant is used in combination. Of course, the colorant layer may contain components other than these unless the effects of the present invention are impaired.

  As the colorant, dyes, pigments and the like can be used. Examples of the dye include acid dyes, disperse dyes, reactive dyes, mordant dyes, and vat dyes. Moreover, as a pigment, an inorganic pigment, an organic pigment, etc. can be used. Examples of inorganic pigments include titanium oxide, calcium carbonate, bengara and carbon bragg. Examples of organic pigments include azo pigments, phthalocyanine pigments, selenium pigments, and isoindoline pigments.

  The color of the colorant is preferably selected in consideration of the camouflage effect. For example, colors that harmonize with the natural environment such as wild mountains, trees, grass, and soil, colors that harmonize with the natural environment such as sand, desert, colors that harmonize with artificial environments such as buildings, and more Suitable colors such as light green, dark green, brown, and black can be expected to have a predetermined near-infrared reflection. In the present invention, the colorant is used alone or in combination, but it is preferable to use it in a combination that can reflect infrared rays in multiple stages. Specifically, it is good to use a camouflage pattern showing multi-stage reflectance. In this case, the infrared reflectance of the main object on the ground surface is said to be about 2 to 65%, and since multi-stage infrared rays are reflected according to the object, also in the present invention, from each colorant By reflecting infrared rays in multiple stages, a high camouflage effect can be expected. In general, infrared rays are preferably reflected in 3 to 5 steps. It is difficult to expect a sufficient camouflage effect with a distribution of one or two stages, and a distribution of six or more stages tends to be disadvantageous in terms of cost and manufacturing.

  On the other hand, as the supporting resin, vinyl acetate resin, acrylic resin, polyurethane resin, polyester resin, polyamide resin, and modified resins thereof can be used.

  As an example, in order to form a camouflage pattern colorant layer, first, a paste containing a camouflage pattern colorant and a supporting resin is prepared. The paste may contain other optional components as necessary. For example, a thickener, a penetrating agent, an antifoaming agent, a crosslinking agent, a plasticizer, a wetting agent, a reducing agent, an alkali compound and the like can be mentioned. In addition, if you want to optimize the infrared reflectance of the colorant layer, or if the selected colorant does not have the desired infrared reflection properties and you want to supplement it, add an infrared absorbing dye in the paste. You may mix | blend. Examples of infrared absorbing dyes include polymethine dyes, phthalocyanine dyes, dithiol dyes, naphthoquinone dyes, anthraquinone dyes, triphenylmethane dyes, aminium dyes, diimmonium dyes, mercaptonaphthol metal complex dyes, and anilines. Black pigments and the like. However, since the infrared-absorbing dye has low adsorptivity to fibers, it is preferable that the infrared-absorbing dye is fixed to the fabric together with an adhesive resin. Examples of the adhesive resin include acrylic, urethane, polyester, and polyamide resins.

  After preparing the paste, the paste is applied to the surface of the metal thin film layer and dried. Thereby, a camouflage pattern colorant layer can be formed. Examples of the application method include textile printing, coating, printing, spraying, and the like, and the textile printing method is preferred from the viewpoint that a camouflage pattern can be easily formed. Examples of the printing method include a rotary screen, a flat screen, and the like.

  The camouflaged fabric of the present invention is a laminate of a fiber fabric, a metal thin film layer, and a camouflage pattern colorant layer in this order as described above. Further, for the purpose of realizing a camouflage effect with durability for washing, A water repellent and a silane coupling agent are fixed to the surface of the camouflage pattern colorant layer via a binder resin.

  The camouflaged fabric is often used in harsh environments as field equipment. For this reason, in order to suppress the reduction of the camouflage effect accompanying dirt adhesion, it is necessary to wash the fabric regularly. However, when the fabric is exposed to a wash water flow, the metal thin film layer and the camouflage pattern colorant layer are more likely to drop off and be eroded, so that the camouflage effect tends to decrease. Therefore, a device for reducing the influence of the water flow is required.

  Therefore, the present inventors have intensively studied and found that the influence of the water flow can be reduced by repelling the water flow using a water repellent, and at the same time, the water repellent by the water flow can be achieved by simply water-repelling the fabric. It was also found that the agent was washed away and permanent washing durability could not be obtained. As a result of further investigations, the reason is unknown, but it has been surprisingly found that washing durability can be imparted to the water-repellent effect when a silane coupling agent is used in combination. Furthermore, it has also been found that when the water repellent and the silane coupling agent are fixed to the surface of the colorant layer through the binder resin, the washing durability can be sufficiently improved.

  Specifically, the washing durability of the water repellent effect needs to satisfy the third grade or higher when the water repellency is measured based on the JIS L1092 spray method after 20 times of repeated washing by the JIS L0217 103 method. . By having a water-repellent effect excellent in washing durability, the washing water flow can be repelled permanently. Then, as the fabric becomes permanently less susceptible to water flow, the chances of the metal thin film layer and camouflage pattern colorant layer falling off and eroding are reduced. As a result, the camouflage effect is kept good. Such excellent washing durability in the present invention can be said to be a synergistic effect of the configuration of using the silane coupling agent and the configuration of fixing the water repellent and the silane coupling agent by the binder resin, It can be said that it is remarkable compared with the prior art.

  Here, examples of the water repellent include a paraffinic water repellent, a polysiloxane water repellent, and a fluorine water repellent, and among them, a fluorine water repellent is preferable from the viewpoint of obtaining excellent washing durability. It is. The amount of the water repellent applied is not particularly limited, but is preferably 10 to 100 parts by mass (solid content) with respect to 100 parts by mass (solid content) of the binder resin, and 20 to 70 parts by mass (solid content). Is more preferable. When the applied amount of the water repellent is less than 10 parts by mass, the desired water repellency cannot be obtained. On the other hand, when the amount exceeds 100 parts by mass, the process based on the padding method described later tends to become unstable, both of which are preferable. Absent.

  Giving a fabric a water repellent is also effective in improving water resistance (water pressure resistance) in addition to water repellency. The provision of waterproof performance greatly contributes to the improvement of washing durability. In the camouflaged fabric of the present invention, the initial water repellency is preferably 4 or more, and the initial water pressure resistance is preferably 10 kPa or more.

  Examples of the silane coupling agent include an organosilicon compound having an organic functional group and a hydrolyzable group. As the organic functional group, any organic functional group may be used as long as it can be a starting point of reaction or interaction with an organic substance. , Sulfide groups, isocyanate groups and the like. Examples of the hydrolyzable group include a methoxy group and an ethoxy group.

  The amount of the silane coupling agent applied is not particularly limited, but is preferably 0.5 to 10 parts by mass (solid content) with respect to 100 parts by mass (solid content) of the binder resin, and 1 to 5 parts by mass ( Solid content) is more preferable. When the application amount of the silane coupling agent is less than 0.5 parts by mass, it is difficult to improve the washing durability of the water repellent effect, and when it exceeds 5 parts by mass, it is not only disadvantageous in terms of cost, but also washing durability. However, neither improvement is expected.

Furthermore, examples of the binder resin include polyamide resins, polyurethane resins, epoxy resins, acrylic resins, and modified resins thereof, and these are used alone or in combination. Among these, acrylic resins and polyurethane resins are preferable from the viewpoints of washing durability, processability, versatility, waterproofness, and fabric texture. The binder resin is not particularly limited and is preferably attached 0.1-5 g / ^{m 2} in terms of solid content, and more preferably 0.5 to 3 g / ^{m 2.} When the adhesion amount is 0.1 g / m ² , the water repellent, the silane coupling agent and the like cannot be sufficiently supported, and it becomes difficult to obtain desired washing durability. On the other hand, when it exceeds 5 g / m ² , the camouflage effect itself tends to decrease, which is not preferable.

  In the camouflaged fabric of the present invention, as described above, the water repellent and the silane coupling agent are fixed to the surface of the camouflage pattern colorant layer via the binder resin. In order to fix the water repellent and the silane coupling agent, first, a resin solution containing a binder resin, a water repellent and a silane coupling agent is prepared. Thereafter, the resin solution may be printed, coated, printed or sprayed on the camouflage pattern colorant layer, or the fabric itself may be padded with the resin solution and then dried. In the present invention, a padding method is preferably employed because the process is simple and thick coating is easy.

  When the padding method is adopted, the pickup rate is preferably 20 to 100% by mass. Moreover, drying conditions are 80-130 degreeC, and 60 to 180 second is preferable. After drying, heat treatment is preferably performed as necessary, and the heat treatment conditions are preferably 150 to 180 ° C. and 20 to 120 seconds.

  Further, the application of the water repellent and the silane coupling agent via the binder resin may be performed in a plurality of times. For example, it may be padded with a treatment liquid containing a silane coupling agent and dried, then padded with a resin solution containing a binder resin and a water repellent and dried. Alternatively, the resin solution containing the binder resin may be coded and dried after padding in a treatment solution containing a silane coupling agent and a water repellent and drying.

  Although it does not specifically limit as a use of the camouflaged fabric of this invention, For example, clothes, a tent, a bag, a cover, a curtain etc. are mention | raise | lifted.

  EXAMPLES Hereinafter, although this invention is demonstrated concretely based on an Example, this invention is not limited to these. Moreover, each characteristic in an Example and a comparative example was measured and evaluated according to the following method.

(1) Camouflage effect A A fabric was photographed with an infrared reflection camera against an infrared region forest, and the camouflage effect was evaluated from the obtained image.
B Visible light region The fabric was visually observed against the background of forest to evaluate the camouflage effect.
The camouflage effect concerning A and B was evaluated according to the following criteria.
A: In harmony with the forest, it is judged that shape identification is very difficult.
○: In harmony with the forest, it is judged that shape identification is difficult.
Δ: Insufficient harmony with the forest and judged to be slightly distinguishable.
×: Not harmonized with the forest and judged to be sufficiently distinguishable.

(2) Water repellent effect The water repellency was measured based on the JIS L1092 spray method.

(3) Waterproofness The water pressure resistance was measured based on the low water pressure method described in JIS L1092.

(4) Washing durability The items described in (1) to (3) above were measured and evaluated for the fabric after 20 washes (after 20 washes) based on JIS L0217 103 method.

(Example 1)
Nylon multifilament yarn 78dtex68f was used as a warp and weaved a plain machine with a warp density of 120 yarns / inch and a weft density of 90 yarns / inch, and then scoured to obtain a fiber fabric having a basis weight of 78 g / m ² .

And the said fiber fabric was introduce | transduced into the calendering machine which has a mirror surface roll, and it calendered on the conditions of temperature 160 degreeC, pressure 300kPa, and speed 30m / min.
Next, the calendered fiber fabric was introduced into a sputtering apparatus, and a nickel / copper alloy metal thin film layer was formed on the calendered surface of the fabric. The thickness of the thin film layer was 0.2 μm.

  Thereafter, the following four color pastes were prepared, and these four color pastes were printed on the surface of the metal thin film layer. The pattern of printing was a camouflage pattern and printed so that each paste did not overlap.

・ Light green CI. Acid Blue 40 (colorant) 0.3 parts by mass CI. Acid Orange 149 (colorant) 0.6 parts by weight Acid Green 28 (colorant) 0.2 parts by weight water 38.9
Printing base paste (composition of supporting resin mainly composed of vinyl acetate resin) 60 parts by mass / dark green Acid Yellow 127 (colorant) 2.7 parts by mass Acid Blue 113 (colorant) 0.6 parts by mass Acid Green 109 (colorant) 0.7 parts by weight water 40.1 parts by weight Original printing paste (composition of supporting resin mainly composed of vinyl acetate resin) 46.0 parts by weight PA1001 (mercaptonaphthol metal complex dye) 0.3 parts by mass Dexel Clear 3301 (acrylic adhesive resin) 10.0 parts by mass Tea Orange Orange 149 (colorant) 2.7 parts by mass Acid Red 266 (colorant) 0.6 parts by mass Acid Blue 258 (coloring) Agent) 0.5 parts by weight of water 38.9 parts by weight of printing base paste (supporting resin mainly composed of vinyl acetate resin) Composition) 46.0 parts by weight Kayasorb IR-750 (aminium dye) 0.5 parts by weight Kayasorb IRG-023 (diimmonium dye) 0.8 parts by weight Dexel Clear 3301 (acrylic adhesive resin) 10.0 parts by weight Black Acid Black 112 (colorant) 5.0 parts by weight Water 34.0 parts by weight Printing base paste (composition of supporting resin mainly composed of vinyl acetate resin) 35.0 parts by weight Pigment Black 112 (aniline black) System pigment) 6.0 parts by mass Herizarine Binder UD (acrylic adhesive resin) 20.0 parts by mass

  After printing, the film was dried at 120 ° C. for 1 minute, further subjected to heat steaming at 120 ° C. for 2 minutes with a high-temperature steamer, and heat treated at 150 ° C. for 1 minute. After heat treatment, it is washed with water, further soaped for 10 minutes at 60 ° C. using an aqueous solution containing 1 g / L of surfactant and soda ash, washed with water, dried, and then a camouflage pattern colorant layer on the thin film layer Formed.

  Next, a resin solution having the composition shown in Formula 1 below was prepared.

<Prescription 1>
Light Epoch S-60NEF (Kitahiro Chemical Co., Ltd., nonionic acrylic silicone binder resin, solid content 30% by mass) 100 parts by weight Shin-Etsu Silicone KBE903 (Shin-Etsu Chemical Co., Ltd., amino silane coupling agent, solid content 10 15% by mass LSE-009 (manufactured by Meisei Chemical Co., Ltd., fluorine-based water repellent, solid content 20% by mass) Parts by weight isopropyl alcohol 10 parts by weight water 805 parts by weight

Then, the fabric formed by laminating the fiber fabric, the metal thin film layer, and the camouflage pattern colorant layer in this order is padded with the resin solution of Formulation 1, and squeezed with mangles so that the pickup rate is 40% by mass. For 2 minutes. Then, the camouflaged fabric was obtained by heat-processing at 170 degreeC for 1 minute. The obtained camouflaged fabric had 1.3 g / m ^{2 of the} nonionic acrylic silicone binder resin attached thereto. Moreover, the application amounts of the fluorine-based water repellent and the amino-based silane coupling agent were 40 parts by mass and 5 parts by mass (solid content), respectively, with respect to 100 parts by mass (solid content) of the binder resin.

(Example 2)
First, a sandpaper having abrasive grains having a particle size of 1500 (average particle diameter of 12 μm) was wound around a metal roll having a length of 50 cm and a diameter of 10 cm. Next, in Example 1, after the metal thin film layer was formed, the surface of the metal thin film layer was rubbed 10 times using a metal roll wound with the sandpaper. Thereafter, the same procedure as in Example 1 was performed to obtain a camouflaged fabric.

(Example 3)
In Example 1, after forming the camouflage pattern colorant layer, the fabric was padded with the treatment liquid of Formulation 2, squeezed with mangle so that the pickup rate was 40% by mass, and dried at 120 ° C. for 2 minutes. The obtained cloth, a water repellent and a silane coupling agent, respectively 0.66 g ^/ m 2, was deposited 0.037 g / ^{m 2.}

<Prescription 2>
Shin-Etsu Silicone KBE903 (manufactured by Shin-Etsu Chemical Co., Ltd., amino silane coupling agent, solid content 10% by mass) 12 parts by mass Asahi Guard AG-E081 (manufactured by Asahi Glass Co., Ltd., fluorine-based water repellent, solid content 30% by mass) 70 parts by weight Meikanate WEB (manufactured by Meisei Chemical Industry Co., Ltd., crosslinking agent, block isocyanate compound) 10 parts by weight Isopropyl alcohol 10 parts by weight Water 898 parts by weight

Next, the surface on which the camouflage pattern colorant layer is laminated is directed upward, and the resin solution of the formulation 3 (solid content: 19% by mass, viscosity: 3500 mPa · s / 25 ° C.) is applied from this surface to an amount of 15 g / m. ² was dry coated. Then, the camouflaged fabric was obtained by drying at 120 ° C. for 2 minutes and heat-treating at 170 ° C. for 1 minute. The obtained camouflaged fabric had 2.85 g / m ² of a waterproof polyurethane binder resin attached thereto. Moreover, the application amounts of the fluorine-based water repellent and the amino-based silane coupling agent were 23 parts by mass and 1.3 parts by mass (solid content), respectively, with respect to 100 parts by mass (solid content) of the binder resin.

<Prescription 3>
Heimlen Y-237NS (manufactured by Dainichi Seika Kogyo Co., Ltd., waterproof polyurethane binder resin, solid content 27% by mass) 100 parts by mass Resamine X (manufactured by Dainichi Seika Kogyo Co., Ltd., cross-linking agent, isocyanate compound) 1 part by mass Methyl ethyl ketone 40 parts by weight

(Comparative Example 1)
A camouflaged fabric was obtained in the same manner as in Example 1 except that Shin-Etsu Silicone KBE903 and LSE-009 in Formulation 1 were omitted.

(Comparative Example 2)
A camouflaged fabric was obtained in the same manner as in Example 1 except that Shin-Etsu Silicone KBE903 in Formulation 1 was omitted.

(Comparative Example 3)
A fake fabric was obtained in the same manner as in Example 1 except that LSE-009 in Formulation 1 was omitted.

(Comparative Example 4)
A camouflaged fabric was obtained in the same manner as in Example 3 except that the dry coating using the resin solution of the formulation 3 was omitted.

(Comparative Examples 5 and 6)
A camouflaged fabric was obtained in the same manner as in Example 1 except that the thickness of the thin film layer was changed to 0.005 μm (Comparative Example 5) or 3 μm (Comparative Example 6) instead of 0.2 μm.

  Table 1 summarizes the properties of the fabrics obtained in the above Examples and Comparative Examples.

  The fabrics in the examples could exhibit an excellent camouflage effect both in the infrared region and in the visible light region. And this camouflage effect was excellent in washing durability.

  On the other hand, the fabrics according to Comparative Examples 1 and 3 were not water-repellent, and no washing durability was observed in the camouflage effect. Among them, Comparative Example 3 used a silane coupling agent, but the desired washing durability was not recognized because it was not water-repellent in the first place. The fabric of Comparative Example 2 was water repellent, but no silane coupling agent was used in combination, and the desired washing durability was not recognized.

  And since the fabric concerning the comparative example 4 was water-repellent processed with the silane coupling agent, a certain amount of washing durability was recognized. However, since it was not accompanied by a binder resin, the washing durability was not so remarkable.

In the fabrics of Comparative Examples 5 and 6, since the thickness of the metal thin film layer was out of the predetermined range, a desired camouflaging effect was not obtained in the infrared region.

Claims (3)

  A disguise in which a fiber fabric, a metal thin film layer, and a camouflage pattern colorant layer are laminated in this order, and at least a water repellent and a silane coupling agent are fixed to the surface of the camouflage pattern colorant layer via a binder resin. The thickness of the metal thin film layer is 0.01 to 1 μm, and the water repellency based on the JIS L1092 spray method is 3 or more after 20 repeated washings according to the JIS L0217 103 method. Disguised fabric characterized.   The camouflaged fabric according to claim 1, wherein the metal thin film layer is etched. After forming a metal thin film layer on one surface of the fiber fabric and then printing a paste containing a camouflage pattern colorant on the surface of the metal thin film layer, 100 parts by mass of a binder resin and a water repellent 10 are formed by a padding method. The manufacturing method of the camouflaged fabric according to claim 1, wherein ~ 100 parts by mass and 0.5-10 parts by mass of a silane coupling agent are applied.