JPH05132879A - Cloth for camouflage - Google Patents

Abstract

PURPOSE:To obtain the subject cloth having an infrared ray reflecting performance comparable to be cloth used in battlefield, having high washability and durability to wear in camouflage performance by applying a coloring matter having a specific composition to cloth of a polyester fiber or nylon fiber. CONSTITUTION:The objective cloth is obtained by applying a coloring matter consisting of (A) 1-10wt.% dye (based on fiber) having affinity to a fiber consisting of a polyester fiber or a nylon fiber and having a specific infrared ray reflecting capability in a specific infrared ray wavelength range and (B) 1-10wt.% pigment (based on fiber) which does not exhibit affinity to said fibers. A fixing agent having flameproof performance or a fixing agent containing a flame proofing agent is preferably used in order to fix the coloring matter and the pigment to the cloth. Furthermore, the fixing ratio of the components A to B on the fiber is preferably (1:2) to (10:1).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth having camouflage performance against reconnaissance by infrared rays, and is used as a shelter for ships, aircraft, tanks, covers, camouflage clothing, personal equipment, etc. It is used.

[0002]

2. Description of the Related Art Recently, a new reconnaissance method has been devised on the battlefield, and infrared rays are used for this purpose. For example, when an infrared photograph is taken of an aircraft such as a military facility or army on the ground from an aircraft, an image that can be distinguished from surrounding objects such as the military facility or army is presented. Similarly, reconnaissance such as direct shooting with infrared night mirrors and infrared filters is also conducted.
Therefore, in order to counter such a reconnaissance method using infrared rays, there is a demand for a cover, camouflage clothing, personal equipment and the like having infrared ray reflection performance similar to battlefields in the infrared region.

Therefore, in order to meet such a demand, we have previously made a camouflage cloth in which an aromatic polyamide fiber cloth is coated with a coloring material (Japanese Patent Laid-Open No. 63-66385).
Provided. However, when the technique is applied to polyester fibers or nylon fibers, it has been found that practically high durability (washing durability and wearing durability) is poor because the coating durability performance on the fibers is poor.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems relating to camouflage fabrics made of polyester fibers or nylon fibers. That is, it has the same infrared reflection performance as the battlefield infrared reflection performance, and for the purpose of providing a cloth for camouflage made of polyester fiber or nylon fiber having high washing durability and wearing durability with respect to such camouflage performance. It was done.

[0005]

That is, according to the present invention, "<Claim 1> In a camouflage cloth obtained by coating a cloth with a coloring material, the cloth is made of polyester fiber or nylon fiber, and the coloring material has an affinity for the fiber, 1 to 10% by weight of a dye having a specific infrared reflectivity in a specific infrared wavelength region
(To the fiber) and a pigment having no affinity for the fiber 0.1
A fabric for camouflage, which comprises 10 to 10% by weight (based on the fiber). <Claim 2> The camouflage cloth according to claim 1, wherein the fiber has a flameproof property. <Claim 3> The cloth for camouflage according to claim 1 or 2, wherein the fiber is coated with the coloring material through a flameproof adhesive. <Claim 4> The camouflage cloth according to any one of claims 1 to 3, wherein the fiber is coated with the coloring material via a fixing agent containing a flameproofing agent. It is.

The fibers constituting the cloth here are polyester fibers or nylon fibers. The polyester fiber is a polyester fiber including a cationic dyeable polyester fiber.

The coloring material used in the present invention comprises a dye having an affinity for the fiber, having a specific infrared reflectivity in a specific infrared wavelength range, and a pigment having no affinity for the fiber.

It is desirable for each color to have a reflectance close to the infrared reflectance of objects around the location where the camouflage fabric is used. For example, khaki, green, etc. are in the range of visible light (400 to 700 nm) and have hues close to those of forests and grasslands, as well as in the infrared range (680 to 150).
At 0 nm), it is desirable that the reflectance be close to the reflectance of the leaves of plants, and likewise that brown is close to the reflectance of dead trees, black, dark brown, soil, rocks, and the like.

The present invention provides a technique for producing a fabric having a predetermined hue (khaki, green, brown, black, etc.) in the visible region and an arbitrary reflectance in the infrared region.

Generally, three or more kinds of coloring materials are used to mix the coloring materials to produce a desired specific color. Most commonly, red, blue and yellow are used as primary colors. The dyed product obtained by using the three primary colors has a specific infrared reflectivity depending on the blending ratio.

Examples of the coloring material include pigments and dyes. When pigments are used, a camouflage cloth having a specific infrared reflectivity can be obtained by the technique disclosed in JP-A-63-66385. .. However, when the technique is used for polyester fiber or nylon fiber, the coating durability with the fiber is poor, and therefore, practically,
Poor high durability (washing durability and wearing durability). On the other hand, when a dye is used (in contrast to this), since the dye has a high affinity for the fiber, it is possible to obtain practically high durability (washing durability and wearing durability).
However, since the dye has a very high reflectance in a specific infrared wavelength region, it is impossible to produce a camouflage fabric having a predetermined infrared reflectivity with the dye alone. Therefore, by optimizing the mixing ratio of the dye and the pigment, it is possible to obtain a camouflage cloth having practically high durability (washing durability and wearing durability) and a predetermined infrared reflectivity in a specific infrared wavelength region. You can

The specific color in the present invention is, for example, green when the battlefield is a forest and brown when the battlefield is a desert, but in any case, the color of the battlefield environment in which camouflage cloth is used. Is selected with consideration.

The pigment may be an organic pigment or an inorganic pigment. When the dye is polyester fiber, disperse dye or vat dye is used for normal polyester fiber, and when it is cationic dyeable polyester fiber, disperse dye,
Vat dyes and cationic dyes are used.

In the case of nylon fibers, vat dyes, acid dyes, metal-containing dyes, etc. are used.

On the fiber, a dye having an affinity for polyester fiber or nylon fiber and having a specific infrared reflectivity in a specific infrared wavelength region, and a pigment having no affinity for polyester fiber or nylon fiber. Fixing ratio (dye / pigment; weight ratio) is 1/10 to 100
/ 1 is preferable. More preferably, it is 1/2 to 10/1.

If it is less than 1/10, practically high durability (washing durability and wearing durability) cannot be obtained. If it exceeds 100/1, a specific infrared reflectivity in a specific infrared wavelength range cannot be obtained.

To coat the cloth with the pigment, a fixing agent is usually used. However, the fixing agent generally used for the polyester cloth or the nylon cloth is often an agent having a low flameproof property. Therefore, in the present invention, it is preferable to use a sticking agent having a flameproofing property or a sticking agent containing a flameproofing agent.

When waterproofness is required, it is desirable to back coat the non-printed surface with a flameproof and waterproof coating agent after printing.

[0019]

The cloth for camouflage of the present invention has the following effects. (1) Since it has the same infrared reflectivity as the surrounding environment on the battlefield, it has camouflage properties for reconnaissance using infrared rays. (2) It has flameproof performance when exposed to flames on the battlefield. (3) Excellent camouflage performance in washing durability and wearing durability.

The method for producing the camouflage fabric of the present invention will be described below with reference to Examples and Comparative Examples. The infrared reflection performance, flameproof performance and washing durability were evaluated according to the following methods.

Infrared reflection performance: Shimadzu UV-3100 Flameproofing performance: JIS-K-7201 Washing durability: JIS-L-0217 103 method The obtained fabrics have a hue in the visible part in any formulation. Are the same.

[0022]

[Comparative Example 1] Plain woven fabric made of polyester fiber (230
g / m ² ) with a pigment and a camouflage pattern (four-color print) with the following formulation, coating amount 100 g /
Printed at m ² .

(Pigment) Khaki Dexcel Golden Yellow HR 5.1% owp Dexcel Scarlet HG 1.1% owp Dexcel Blue H2R 1.0% owp Green Dexcel Golden Yellow HR 10.0% owp Dexcel Blue H2R 1.7% owp Dexcel Scarlet HG 0.7% owp Dexcel Black HB 0.1% owp Brown Dexcel Golden Yellow HR 9.0% owp Dexcel Blue H2R 1.4% owp Dexcel Scarlet HG 3.5% owp Dexcel Black HB 0.2% owp Black Dexcel Black HB 12.0% owp

(Sticking agent) Reactive self-crosslinking acrylic acid ester copolymer emulsion 20.0% owp (Thickening agent) Acrylic acid polymer 4.0% owp (PH adjusting agent) 25% Ammonia water 0.5% owp Antimony trioxide (effective) Ingredient 22% by weight aqueous dispersion) 1.0% owp Decabromobiphenyl ether (active ingredient 45% by weight aqueous dispersion) 2.0% owp (crosslinking agent) Ethyleneimine 1-4.0% owp (however, owp is color Represents% by weight in the paste. The same applies to Comparative Examples and Examples below.).

Then, after drying at 100 ° C. for 2 minutes, 15
Dry heat treatment was performed at 0 ° C. for 2 minutes.

The obtained cloth had the reflectance in the visible portion and the infrared portion as shown in FIG. 1, and had the flameproofness and the washing durability as shown in Table 1.

[0027]

Comparative Example 2 The cloth used in Comparative Example 1 was used to print a camouflage pattern (4 color print) with a coating amount of 100 g / m ² using a disperse dye and the following formulation.

(Disperse dye) Khaki CIDisperse Yellow 114 0.9% owp CIDisperse Blue 60 1.6% owp CIDisperse Red 91 0.9% owp Green CIDisperse Yellow 114 5.5% owp CIDisperse Blue 60 2.7% owp CIDisperse Red 91 1.4 % Owp Brown CIDisperse Yellow 114 4.0% owp CIDisperse Blue 60 4.7% owp CIDisperse Red 167 1.4% owp Black Miketon Polyester Black CLH 12.0% owp

(Color paste formulation) (Gluing agent) Gua gum 4.3% o.w.p. Modified carboxymethyl cellulose 1.2% o.w.p. Sodium alginate 1.0% o.w.p. (Dyeing accelerator)

[0030]

[Chemical 1]

(M = 7 to 12, n = 4 to 9) 1 to 3.0% owp (PH adjusting agent) malic acid 0.2% owp (reduction inhibitor) sodium m-nitrobenzenesulfonate 1 to 2.0% owp (metal ion Blocking agent) ethylenediamine triacetate disodium 0.3% owp

After drying at 100 ° C. for 2 minutes, heating steam treatment was performed at 180 ° C. for 5 minutes with a high temperature steamer. Then, after washing with water, 48 ° Be sodium hydroxide 2 cc /
1, an aqueous solution consisting of hydrosulfite 2 g / l 7
After heat treatment at 0 ° C. for 10 minutes, it was washed with water and dried. The obtained fabric had the reflectance in the visible portion and the infrared portion as shown in FIG. 2, and had the flameproofness and the washing durability as shown in Table 1.

[0033]

Example 1 Using the cloth used in Comparative Example 1, a camouflage pattern (4 color print) was printed with a coating amount of 100 g / m ^{2 according} to the following formulation in which a dye and a pigment were used in combination.

Khaki CIDisperse Yellow 114 0.9% owp CIDisperse Blue 60 1.3% owp CIDisperse Red 91 0.9% owp Ryudye-W Black B 0.7% owp green CIDisperse Yellow 114 5.5% owp CIDisperse Blue 60 1.7% owp CI Disperse Red 91 1.4% owp Ryudye-W Black B 2.0% owp brown CIDisperse Yellow 114 4.0% owp CIDisperse Blue 60 0.7% owp CIDisperse Red 167 1.4% owp Ryudye-W Black B 4.0% owp black Miketon Polyester Black CLH 8.0 % Owp Ryudye-W Black B 7.0% owp

(Color paste formulation) Khaki color, green color and brown color are the same as the color paste formulation used in Comparative Example 2. The black color is as follows.

Black (fixing agent) Reactive self-crosslinking acrylic acid ester copolymer emulsion 20.0% owp (thickener) Acrylic acid polymer 4.0% owp (PH adjusting agent) 25% aqueous ammonia 0.5% owp (crosslinking agent) Ethyleneimine 1-4.5% owp

Then, the same treatment as in Comparative Example 2 was performed. The obtained fabric has a reflectance in the visible region and the near infrared region as shown in FIG.
And had flame resistance and washing durability as shown in Table 1.

[0038]

[Comparative Example 3] A plain woven fabric (235 g / m ² , exter A manufactured by Teijin Ltd.) made of polyester fiber having flameproof performance was used to print with the same formulation as in Comparative Example 1 using a pigment. Processed. The obtained cloth had the characteristics as shown in FIG. 4 in the reflectance in the visible portion and the near infrared portion, and had the flameproofness and the washing durability as shown in Table 1.

[0039]

Comparative Example 4 Using the cloth used in Comparative Example 3, printing was performed with a disperse dye in the same formulation as in Comparative Example 2 and the same treatment was performed. The obtained cloth had the reflectance as shown in FIG. 5 in the visible portion and the near-infrared portion, and had flameproofness and washing durability as shown in Table 1.

[0040]

Example 2 Using the cloth used in Comparative Example 3, printing was performed with the same formulation as in Example 1 and the same treatment was performed. The obtained cloth had the characteristics shown in FIG. 6 in the reflectance in the visible portion and the near infrared portion, and had the flameproofness and the washing durability as shown in Table 1.

[0041]

[Comparative Example 5] A plain fabric made of nylon fiber (230 g /
m ² ) with a pigment and a camouflage pattern (4 color print) according to the following formulation, coating amount 100 g / m ²
I printed it in.

(Pigment) Khaki Dexcel Golden Yellow HR 5.0% owp Dexcel Scarlet HG 1.1% owp Dexcel Blue H2R 1.0% owp Green Dexcel Golden Yellow HR 10.0% owp Dexcel Blue H2R 1.7% owp Dexcel Scarlet HG 0.7% owp Dexcel Black HB 0.1% owp Brown Dexcel Golden Yellow HR 4.0% owp Dexcel Blue H2R 4.7% owp Dexcel Scarlet HG 1.4% owp Dexcel Black HB 0.2% owp Black Dexcel Black HB 12.0% owp

(Sticking agent) Reactive self-crosslinking acrylic ester copolymer emulsion 20.0% owp (thickening agent) Acrylic acid polymer 4.0% owp (PH adjusting agent) 25% aqueous ammonia 0.5% owp (crosslinking agent) ethylene Imine 1-4.0% owp Antimony trioxide (active ingredient 22% by weight aqueous dispersion) 1.0% owp Decabromobiphenyl ether (active ingredient 45% by weight aqueous dispersion) 2.0% owp

Then, after drying at 100 ° C. for 2 minutes, 15
Dry heat treatment was performed at 0 ° C. for 2 minutes.

The obtained cloth had the reflectance in the visible portion and the infrared portion as shown in FIG. 7, and had the flameproofness and the washing durability as shown in Table 1.

[0046]

Comparative Example 6 Using the cloth used in Comparative Example 5, a camouflage pattern (four-color print) was printed with a disperse dye in the following formulation at an application amount of 100 g / m ² .

(Disperse dye) Khaki CIDisperse Yellow 114 1.1% owp CIDisperse Blue 60 1.9% owp CIDisperse Red 91 1.1% owp green CIDisperse Yellow 114 6.6% owp CIDisperse Blue 60 3.2% owp CIDisperse Red 91 1.7 % Owp Brown CIDisperse Yellow 114 4.8% owp CIDisperse Blue 60 5.6% owp CIDisperse Red 167 1.7% owp Black Miketon Polyester Black CLH 14.0% owp

(Color paste formulation) (Gluing agent) Gua gum 4.3% o.w.p. Modified carboxymethyl cellulose 1.2% o.w.p. Sodium alginate 1.0% o.w.p. (Dyeing accelerator)

[0049]

[Chemical 2]

(M = 7 to 12, n = 4 to 9) 1 to 3.0% owp (PH adjusting agent) Malic acid 0.2% owp (reduction inhibitor) m-Nitrobenzenesulfonic acid sodium 1 to 2.0% owp (metal ion Blocking agent) ethylenediamine triacetate disodium 0.3% owp

Then, after drying at 100 ° C. for 2 minutes, heating steam treatment was performed by a high temperature steamer at 180 ° C. for 5 minutes. Then, after washing with water, 48 ° Be sodium hydroxide 2 cc /
1, an aqueous solution consisting of hydrosulfite 2 g / l 7
After heat treatment at 0 ° C. for 10 minutes, it was washed with water and dried. The obtained fabric had the characteristics as shown in FIG. 8 in the reflectance in the visible portion and the near infrared portion, and had the flameproofness and the washing durability as shown in Table 1.

[0052]

Example 3 Using the cloth used in Comparative Example 5, a camouflage pattern (4-color print) was printed at a coating amount of 100 g / m ^{2 according} to the following formulation in which a dye and a pigment were used in combination.

Khaki CIDisperse Yellow 114 1.1% owp CIDisperse Blue 60 1.6% owp CIDisperse Red 91 1.1% owp Ryudye-W Black B 0.9% owp green CIDisperse Yellow 114 6.6% owp CIDisperse Blue 60 2.0% owp CI Disperse Red 91 1.7% owp Ryudye-W Black B 2.4% owp brown CIDisperse Yellow 114 4.8% owp CIDisperse Red 167 1.7% owp CIDisperse Blue 60 0.8% owp Ryudye-W Black B 4.8% owp black Miketon Polyester Black CLH 9.6 % Owp Ryudye-W Black B 8.4% owp

(Color Paste Formulation) Khaki color, green color and brown color are the same as the color paste formulation used in Comparative Example 6. The black color is as follows.

Black (fixing agent) Reactive self-crosslinking acrylic ester copolymer emulsion 20.0% owp (thickener) Acrylic acid polymer 4.0% owp (PH adjusting agent) 25% aqueous ammonia 0.5% owp (crosslinking agent) Ethyleneimine 1-4.0% owp

Then, the same treatment as in Comparative Example 6 was performed. The resulting fabric has a reflectance in the visible region and the near infrared region as shown in FIG.
And had flame resistance and washing durability as shown in Table 1.

[0057]

Comparative Example 7 A plain woven fabric (235 g / m ² ) made of nylon fibers that had been scoured and bleached was treated with a treatment bath having the following composition at a bath ratio of 1:30 and 100 ° C. for 30 minutes.

Flame retardant: Furan PA-1000 (Daiwa Chemical Co., Ltd.) 10% (vs. fiber weight) PH adjuster: 25% hydrochloric acid Adjusted to PH2 Then, after washing with warm water at 60 ° C. for 10 minutes, washing with water,
Dried.

Using the processed cloth, a pigment was printed with the same formulation as in Comparative Example 5, and the same treatment was performed. The obtained fabric has a reflectance in the visible region and the near infrared region as shown in FIG.
It had the characteristics as shown in 0 and had the flameproofness and the washing durability as shown in Table 1.

[0060]

[Comparative Example 8] Using the cloth used in Comparative Example 7, printing was performed by using the disperse dye with the same formulation as in Comparative Example 6 and the same treatment was performed. The obtained cloth had the characteristics shown in FIG. 11 in the reflectance in the visible portion and the near infrared portion, and had the flameproofness and the washing durability as shown in Table 1.

[0061]

Example 4 Using the cloth used in Comparative Example 7, printing was performed with the same formulation as in Example 3 and the same treatment was performed. The obtained cloth had the characteristics as shown in FIG. 12 in the reflectance in the visible portion and the near infrared portion, and had the flameproofness and the washing durability as shown in Table 1.

[0062]

[Table 1]

Washing durability: Evaluation was made based on the discolored state of the fabric surface after 10 times of washing. No discoloration ◎ Slight discoloration ○ Large discoloration × Camouflage property: Controllable to any infrared reflectance ○ Uncontrollable to any infrared reflectance ×

[Brief description of drawings]

FIG. 1 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 2 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 3 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 4 shows reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 5 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 6 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 7 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 8 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 9 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 10 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 11 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

FIG. 12 shows the reflectance at each wavelength of each color in Examples 1 to 4 and Comparative Examples 1 to 8.

[Explanation of symbols]

 1 Reflectance at each wavelength of khaki 2 Reflectance at each wavelength of green 3 Reflectance at each wavelength of brown 4 Reflectance at each wavelength of black

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location D06P 3/52 Z 7306-4H F41H 3/02 9209-2C (72) Inventor Kazuo Yasuda Higashine Yamagata Prefecture 3-6, Minami, Ichigamicho 222 (72) Yoshifumi Wakamatsu, 2-3, Kitamachi, Nerima-ku, Tokyo 17-206 (72) Koichi Hosoyama, 1-6-7, Minamihonmachi, Chuo-ku, Osaka-shi, Osaka Inside the Teijin Limited (72) Fumio Yoshida, 31 Mibu Tsuji-machi, Nakagyo-ku, Kyoto Prefecture Kou Co., Ltd. Kyoto Office

Claims (4)

[Claims] 1. A camouflage fabric obtained by coating a cloth with a coloring material, wherein the cloth comprises polyester fibers or nylon fibers, the coloring material has an affinity for the fibers, and a specific infrared reflection in a specific infrared wavelength region. A cloth for camouflage, which comprises 1 to 10% by weight of a dye having a function (to a fiber) and 0.1 to 10% by weight of a pigment having no affinity to the fiber (to a fiber). 2. The camouflage fabric according to claim 1, wherein the fibers have flameproof properties. 3. The cloth for camouflage according to claim 1, wherein the fibers are coated with the coloring material via a flameproof adhesive. 4. The camouflage cloth according to claim 1, wherein the fiber is coated with the coloring material via a fixing agent containing a flameproofing agent.