JPH0534094A - Camouflage tent - Google Patents

Abstract

PURPOSE:To obtain fabric for camouflaged tent, which is light in weight, high in strength, never causing plastic rupture in a cold district and the like, never generating mildew, never leaking light in the tent to the outside thereof at night, having no possibility of fire since the fabric is provided with antiflaming property and capable of being used optimally as the fabric for camouflaged tent detected hardly. CONSTITUTION:Fabric for camouflaged tent is constituted of a fabric consisting of polyester multi-filament threads having a fineness of single yarn of 10 denier or less and the strength of 8g/denier or more and black pigment as well as water repellent agent, which are applied to the fabric, while a vinyl chloride resin layer, produced by flame-resistant mixing pigment with agent, is provided on the surface of the fabric. Further, camouflage pattern, showing the infrared ray reflecting rate of 2.5-60% in the wavelength area of infrared rays of 600-1400nm, is applied to the surface of the coating layer while the weight of the fabric is 320-450g/m<2>, the strength of the same is 100kg/3cm or more, the LOI value of the same is 25 or more and the light screening rate of the same is 99% or more.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camouflage-processed tent place which is lightweight, has high strength, is excellent in light-shielding properties, and can be suitably used for a camouflaged tent having a camouflage pattern in the infrared region.

[0002]

2. Description of the Related Art Tents coated with a polyvinyl chloride resin have been well known. As a material for this conventional tent, a polyvinyl chloride resin is dipped on a cloth woven or knitted using spun yarn or filament yarn such as vinylon, polyamide or polyester.
A waterproof cloth processed by topping, coating, laminating, etc. is used, and is sewn with a sewing machine and sewn with a high-frequency welder. Generally, the camouflage tent for disguise is required to have almost the same color and pattern as the surrounding objects in the area. However, it is difficult to adapt to changes in the surrounding environment with a single color called the conventional OD color national defense color, and camouflage tents are preferable to ease the contrast with the surroundings. Camping tents, medical tents, etc. are various in the area. A camouflage pattern that takes into consideration the hue and pattern in the visible region of nature such as plants and rocks is applied.

However, in such a tent area, moisture absorbed in a cold area freezes, resin is destroyed, the function of the tent is lost, and mold occurs due to the moisture in a warm area. In addition, the camping tent requires that the lights in the tent do not leak to the outside at night, but most of them do not have this effect. The physical properties of the base cloth are water resistance,
In addition to flameproofness, when used outdoors for long periods of exposure to sunlight, wind, and rain, strong physical properties and durability are necessary but not sufficient, and it is heavy and difficult to handle. There are drawbacks.

Many of them are provided with a camouflage pattern corresponding to only the visible region, and these have a drawback that camouflage can be easily detected by new detection techniques in recent years. As a current detection technique, an infrared detection method for detecting light rays in the infrared region is known. On the other hand, it is necessary for the camouflage side to protect against this, and the point is how to approach the infrared reflectance of the natural environment. There are various infrared detection methods such as an infrared filter method, an infrared photography method, and an infrared night mirror method, and there is a high possibility that a new detection method will be developed. All of these detection methods have been widely used in recent years because they can be detected well even when fog is applied at a long distance or at night, and generally, infrared rays of 600 to 860 nm or infrared rays of 1000 to 1200 nm are generally used. Is using to detect. To protect against this infrared detection, a camouflage pattern in this infrared region is required. Fabricated tents with such camouflage patterns are not yet generally available.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of conventional tents and provide a tent suitable for camouflage.

[0006]

[Means for Solving the Problem] To solve this problem
The present invention has a single yarn fineness of 10 denier or less and a strength of 8 g / d
Nylon or higher polyester multifilament yarn
The fabric has a black pigment and a water repellent attached to it.
Vinyl chloride resin coating layer with pigment and flame retardant mixed on its surface
In addition, an infrared ray of 600 to 1400 nm is provided on the surface of this coating layer.
Stray showing 2.5-60% infrared reflectance in the linear wavelength range
It has a colorful pattern and a basis weight of 320-450 g / m ² , Strong is 100
kg / 3cm or more, LOI value of 25 or more, shading rate of 99% or more
It is a camouflage-processed tent ground that has as its gist.

The present invention will be described in detail below. The polyester used in the present invention is not particularly limited, but is a polyester mainly composed of polyethylene terephthalate, and isophthalic acid, adipic acid, sodium 3.5-dicarbomethoxysulfoisophthalic acid and the like as a copolymerization component. May be included. Further, it may contain commonly used matting agents, antioxidants, flame retardants, pigments, light stabilizers, brightening agents and the like. Further, the single yarn fineness of the polyester multifilament yarn is 10 denier or less, and the strength thereof is 8 g / denier or more. When the single yarn fineness exceeds 10 denier, the texture is very hard, and it is difficult to make it compact and handle it when folded. Single yarn fineness strength is 8g
If it is lower than / denier, it is difficult to obtain the desired strength, and in order to obtain a lightweight and high strength, it is an essential factor that the strength is 8 g / denier or more. In addition, when filament yarn is used, it is lightweight, high-strength, the flatness of the fabric is easily obtained, the camouflage printing process is easy, and the stain is not attached.
In the infrared wavelength range of 600 to 1400 nm, 2.5 to 60
The infrared reflectance in multiple stages of% is limited here because the infrared reflectance within this range is shown when the natural world is analyzed and the reflectance is measured. The reflectance of plants, trees and rocks in the wavelength range of 600 to 1200 nm is as shown in Table 1.

[0008]

[Table 1]

Next, the basis weight of the tent according to the present invention is 320
˜450 g / m ² . The reason for setting the basis weight within this range is as follows. That is, the one currently used as a commercial tent is 450 g / m ²⁰ or more, which is heavy and difficult to handle. When the basis weight is 320 g / m ² or less, it is lightweight, but it is difficult to obtain safety light-shielding property and waterproof property, and it is preferably 350 to 420 g / m ² .

The polyester cloth made of these yarns is used by being formed into a plain weave, a woven fabric having other structures such as a modified structure or a twill structure, and knitted fabrics having various structures. Tensile strength of 100kg / 3cm or more, tear strength of 5kg or more (Sunshine weather meter 500hr
s After irradiation), the fineness of use, strength, density and structure are important factors, and in consideration of these factors, the raw material is designed in the usual way.

The reason why the tensile strength is 100 kg / 3 cm or more is that if the tensile strength is 100 kg / 3 cm or less, the tent will be broken particularly at the roof portion of the tent and where stress is concentrated, and the tent cannot be used harshly.

Next, the above-mentioned cloth is colored with a black pigment. The purpose is to obtain a light-shielding property by coloring the base cloth, and the pigment is a carbon black pigment or aniline black. One pigment or a mixture of two or more pigments selected from the group consisting of pigments and iron oxide black pigments, and generally commercially available pigments are used. As the applying method, a padding method, a coating method, a printing method or the like which is usually performed is used. The amount of the pigment adhered has a relationship with the light-shielding property, and 1 to 5 wt% is suitable for the fiber weight. After applying the pigment to the cloth, a dry heat treatment is performed by a usual method. Adhesion amount is 1wt
When the content is 5% by weight or less, the desired light-shielding property cannot be obtained, and when the content is 5% by weight or more, the light-shielding property can be obtained, but the adhesiveness with the vinyl chloride resin is deteriorated and the light-shielding performance is not improved even if it is added more. Next, a water-repellent treatment is performed with a water-repellent agent. This is done to prevent the tent from absorbing water due to capillarity and to prevent resin destruction and mold formation due to freezing. Known publicly known water repellents can be used, but especially considering the adhesiveness to the vinyl chloride resin in the next step, a fluorine resin water repellent is suitable.
Further, the water repellent treatment may be performed before or after the above pigment application treatment or simultaneously. Also, regarding the water absorption of the tent, if the water absorption in the 24-hour immersion test by the Baylex method exceeds 5 mm, it will lead to resin destruction when mold is generated and the absorbed water freezes, so the water absorption must be 5 mm or more.

Further, the cloth processed as described above is coated with a vinyl chloride resin. As the coating method, the padding method, coating method,
The topping method and the laminating method are used. As the vinyl chloride resin, a polyvinyl chloride straight resin and a paste resin are used, and as the plasticizer, a dialkyl phthalate plasticizer (for example, dioctyl phthalate, dibutyl phthalate, etc.) is used, and if necessary, a solvent is used. Used after diluting.
And these are kneaded and used by an open type heating type mixing roll, a Banbury mixer, etc.

A pigment is mixed with the vinyl chloride resin in order to improve the camouflage in the visible light region and the infrared light region and the light shielding property. That is, a pigment mainly for camouflage is used for the vinyl chloride resin coating layer on the front side of the cloth, and a pigment mainly for black color is used for the vinyl chloride resin coating layer on the back side to improve the light shielding property. When importance is attached to comfortability, a pigment having a hue used for general interiors can be used.

As the visible light reflective dye, C.I. which is generally used for coloring vinyl chloride resins. I Pigment Green 7, C.I. I pigment black 1, C.I. Commercially available pigments such as I Pigment Blue 15 may be used, and in addition to these pigments, a pigment for obtaining a camouflage effect in the infrared region described later is preferably mixed in the operation.

Further, in order to impart flameproofness, an inorganic flameproofing agent such as antimony trioxide or aluminum hydroxide is added, and the addition amount is preferably 5 to 15 wt%. Then, the tent ground is evaluated according to JIS Z-2150 method and is grade 2 or higher, and is measured according to JIS K-7201 method and is L.
It is necessary to secure an OI value of 25 or more. The LOI value is an oxygen demand index, the amount of O _{2 in} the atmosphere is 21%,
When the LOI value is 21 or more, it has a characteristic of being difficult to burn, and when it exceeds 25, this effect remarkably appears.

In order to prevent the deterioration of light resistance, an ultraviolet absorber (eg, octyl-2-cyano-3) may be added if necessary.
-3 'diphenyl acrylate) may be added. Other generally added bulking agents and stabilizers may be added. If necessary, an adhesive component (for example, an isocyanate type) can be added to improve the adhesiveness between the base cloth and the vinyl chloride resin. An appropriate amount of vinyl chloride resin attached is about 150 g to 350 g / m ² , and various coating methods such as a combination of coating and laminating and multi-layer coating are adopted. After application, the paste resin is dried and cured, and the topping and laminating is performed by a thermal laminating process using a calendering machine. If necessary, baking and embossing were performed to obtain a waterproof cloth. In this case, it is necessary to make the light-shielding property 99% or more by coloring the greige machine and adjusting the hue and coating amount of the vinyl chloride resin. If the light blocking rate is less than that, the light in the tent is perceived to leak to the outside at night, and the performance of the present invention cannot be obtained.

The pattern provided on the vinyl chloride resin-coated cloth is
The surface of the vinyl chloride resin coating layer is divided, and a plurality of types of pattern patterns having different infrared reflectances are distributed and arranged on the surface. In this case, it is preferable to have visible camouflage. This pattern can be obtained by applying a mixture of a pigment having a different infrared reflectance and a visible light reflective dye, mechanical printing or hand printing. In this case, it is convenient to leave the surface of the vinyl chloride resin coating layer on the cloth as one of the patterns. Infrared reflectance is 680
The reflectivity should be 2.5% to 18% at nm, 13% to 55% at 750 nm, and 13% to 60% at 1200 nm. Different infrared reflectance 3
When the seeds are arranged, it is desirable that the relationship between the respective reflectances is within the above range and that the three species are changed at almost equal intervals in the infrared wavelength region. As the pigment for changing the infrared reflectance, carbon black pigment, aniline black pigment, iron oxide black pigment, titanium oxide black pigment, spinel structure black pigment and silicic anhydride, aluminum silicate, magnesium silicate, mica, Inorganic powder such as talc and silicate, aluminum stearate, polymethine dye,
Phthalocyanine dyes, dithiol dyes, naphthoquinones, anthraquinone dyes, triphenylmethane dyes, aminium diimmonium dyes and the like are used. Since they are hard to adhere to vinyl chloride resin, they are strongly adsorbed to vinyl chloride resin through various resin binders. Vinyl chloride resin is also preferable as the binder resin. Further, the surface of the vinyl chloride resin-coated surface may be subjected to an antifouling treatment. As these, an acrylic resin or a fluorine resin which is usually used for antifouling treatment of vinyl chloride resin is used.

[0019]

With this structure, it is lightweight and has high strength, because it does not cause resin destruction or mold in cold regions, and the light in the tent does not leak to the outside at night, and it has flameproof property. It can be suitably used as an ideal camouflage tent place that has a camouflage color pattern and is difficult to detect without danger of fire. Furthermore, it becomes possible to obtain a camouflage-processed tent that exhibits a camouflage pattern in the region of 600 to 1400 nm, so that it is possible to obtain a tent that is difficult to detect infrared rays in fog or rain conditions or at night.

[0020]

EXAMPLES The present invention will now be described in detail based on examples. Using a polyester multifilament 500d / 96f having a single yarn fineness of 5.2 denier and a strength of 8.5 g / denier, a plain weave of weave density warp / weft, 35 × 36 yarns / inch was woven. This woven fabric was heat-treated with a heat setter at 180 ° C. for 1 minute.

Next, this woven fabric is dipped in a processing liquid having the composition shown in Table 2, squeezed with a mangle so that the wet absorption amount to 60% relative to the weight of the cloth, and dried at 150 ° C. for 2 minutes to give a black coloring and Water repellent finish is applied.

[0022]

[Table 2]

Next, a processing agent having the following composition (A) was added to the front.
Adhesion amount 120g / m with knife coater on the surface of the treated fabric
² Coating, and dried at 180 ℃ for 1 minute, gelation treatment
And protect it from dark green, which is reflective to infrared rays.
A water film was formed. Then, on the back side of the following formulation
Adhesion of the processing agent consisting of (B) with a knife coater: 70 g /
m ² So that it becomes, dry at 200 ℃ for 1 minute, and gelate
It processed and the black light-shielding film was formed. The surface side of the resin-coated sheet thus obtained (d
The following camouflage pattern is printed on the green surface)
The surface was smoothed with an embossing machine to make it easier.

Then, using a printing paste having the following composition on the dark green smooth surface of the resin-coated sheet, a pattern with an irregular camouflage pattern is prepared so that the brown portion occupies 50% of the total area, and the pattern is printed on the hand screen. Printing was performed. For printing, a camouflage tent with a camouflage pattern consisting of dark green-brown, squeegeeed using a 100-mesh screen with the above pattern so that the coating amount is 15 g / m ^2, and dried at 100 ° C for 3 minutes. Got the ground. The performance of the camouflaged tent was good as shown in Table 3. The infrared reflectance is shown in FIG. From Fig. 1 as well, the reflectance of dark green is 7.8 at a wavelength of 680 nm.
%, 35.0% at 750 nm, 39.3% at 1200 nm, and Brown's reflectance is 11.5% at 680 nm, 750
The values are 15.6% at nm and 16.1% at 1200 nm, which satisfy the present invention.

[0025]

[Table 3]

[0026]

As described above, according to the present invention, it is lightweight and has high strength, does not cause resin destruction or mold in cold regions, and does not leak the light in the tent to the outside at night. Further, since it has flameproof property, it can be suitably used as an ideal camouflage tent place that has a camouflage color pattern without danger of fire and is difficult to detect. Furthermore, it is possible to obtain a camouflage-processed tent with a multi-step camouflage pattern with different infrared reflectance in the 600 to 1400 nm region, which makes it difficult to detect infrared rays in fog or rain conditions or at night. You can get a tent.

[Brief description of drawings]

FIG. 1 is a graph showing IR reflectance.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI Technical indication location D06M 15/248 E04H 15/54 9128-2E (72) Inventor Ishihiro Kyohiro 1 Higashihonmachi, Amagasaki City, Hyogo Prefecture 50-chome Unitika Co., Ltd. (72) Inventor Yasuo Masuda 1-50 Higashihonmachi, Amagasaki City, Hyogo Prefecture 50-chome Unitika Co., Ltd. (72) Minor Maekawa 1621-Sakazu Kurashiki City, Okayama Prefecture Kuraray Co., Ltd. (72) ) Inventor Shiro Kondo 1621 Sakata, Kurashiki, Okayama Prefecture Kuraray Co., Ltd. (72) Inventor Hiromi Mizuguchi 2-5-13 Nihonbashi, Chuo-ku, Tokyo Imperial Textile Co., Ltd. (72) Inventor Masahiro Imai Central Tokyo 2-5-13 Nihonbashi, Ward Teikoku Textile Co., Ltd. (72) Inventor Masayuki Suetsugu 1-1-10 Nihonbashi Ningyocho, Chuo-ku, Tokyo Tosco shares Within the company (72) inventor Shoji Ishibashi Nihonbashi, Chuo-ku, Tokyo Ningyo-cho 1-chome No. 1 No. 10 Tosco within Co., Ltd.

Claims (1)

Claims: Single yarn fineness of 10 denier or less, strength of 8 g /
A cloth made of polyester multifilament yarn of denier or more has a black pigment and a water repellent attached to it, a vinyl chloride resin coating layer mixed with a pigment and a flame retardant is provided on the surface, and the surface of this coating layer is 600 It has a camouflage pattern with an infrared reflectance of 2.5 to 60% in the infrared wavelength range of ~ 1400 nm, a basis weight of 320 to 450 g / m ² , and a strong strength of 1
Camouflage processing tent place, which is characterized by 00kg / 3cm or more, LOI value of 25 or more, and shading rate of 99% or more.