阅读说明：本技术 一种绗缝线缝制复合成的防热红外侦察隐身面料 (Quilting seam and line sewn composite heat-proof infrared detection stealth fabric ) 是由 沈定南 张羽纶 于 2020-05-29 设计创作，主要内容包括：本发明属于功能性纺织材料领域,具体涉及一种绗缝线缝制复合成的防热红外侦察隐身面料。本发明从内侧到外侧依次由基底层、隔热泡沫层和面层经绗缝线缝合制成；所述基底层为一侧镀有镀铝膜的长丝机织布面料,且镀铝膜位于外侧；所述隔热泡沫层由聚酯纤维无纺布基材和涂覆在聚酯纤维无纺布基材上的微孔泡沫涂层聚氨酯膜组成；所述面层为一侧镀有镀铝膜另一侧涂覆有伪装花纹的长丝机织布面料,且镀铝膜位于内侧,且伪装花纹为采用喷绘工艺涂覆于长丝机织布面料表面的低红外发射率涂层。本发明能够有效抑制大气窗口范围内的辐射特征,同时还能应对短时间的局部高温,具有很强的综合隐身性能,具有较好的可靠性和耐久性。(The invention belongs to the field of functional textile materials, and particularly relates to a heat-proof infrared reconnaissance stealth fabric formed by quilting and sewing. The invention is made by sewing a basal layer, a heat insulation foam layer and a surface layer by quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process. The invention can effectively inhibit the radiation characteristic in the atmospheric window range, can simultaneously deal with local high temperature in a short time, has strong comprehensive stealth performance and better reliability and durability.)

1. A quilted seam line sewing composite heat-proof infrared reconnaissance stealth fabric is characterized in that: the heat insulation foam layer is formed by sewing a basal layer, a heat insulation foam layer and a surface layer through quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process; the low infrared emissivity coating is prepared by the following steps:

s1: uniformly mixing 300 parts of water 250-one, 5-7 parts of allyl alcohol polyoxypropylene ether phosphate and 2-3 parts of allyl alcohol ether phosphate by weight to obtain a mixture A;

s2: uniformly mixing 50-60 parts of butyl acrylate, 10-12 parts of isopropyl styrene, 10-12 parts of vinyl acetate, 8-9 parts of petroleum ether, 5-7 parts of acetone and 2-7 parts of an oily pigment by weight to obtain a mixture B;

s3: uniformly mixing 30-40 parts of water, 15-20 parts of n-butanol, 2-3 parts of 1, 2-propylene glycol, 2-3 parts of 1, 4-butanediol, 5-7 parts of triton, 0.02 part of graphene, 2-3 parts of isopropyl titanate and 1-2 parts of ferric trichloride to obtain a mixture C;

s4: and mixing the mixture A and the mixture B, stirring and heating to 68 ℃, then adding 25-30 parts of aqueous solution containing 1 part of ammonium persulfate, preserving heat for 5-6h, then adding the mixture C, continuing preserving heat and stirring for 1.5-2h to obtain the low-infrared-emissivity coating.

2. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: in the heat insulation foam layer, the polyester fiber non-woven fabric base material is positioned on the inner side, and the microporous foam coating polyurethane film is positioned on the outer side.

3. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 2, characterized in that: in the heat insulation foam layer, a layer of metal heat conduction net is clamped between the polyester fiber non-woven fabric substrate and the microporous foam coating polyurethane film.

4. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 3, characterized in that: the metal heat conducting net is a square-hole twill woven net, the diameter of a mesh is 2-4mm, and the diameter of a metal wire is 0.05-0.1 mm.

5. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: the quilting line is at least one of a warp quilting line, a weft quilting line, a warp combined quilting line, a diamond quilting line, an arc quilting line and a curve quilting line.

6. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: the camouflage patterns are vegetation color camouflage color patterns or desert color camouflage color patterns; the camouflage patterns are prepared from a plurality of low infrared emissivity coatings containing different colors of oily pigments through a spray painting process.

7. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: the aluminizer in the basal layer and the surface layer can be obtained by vacuum aluminizing or magnetron sputtering aluminizing processing.

8. The quilted seam-sewn composite thermal infrared surveillance stealth fabric of claim 1, characterized in that: the heat insulation foam layer is prepared by the following steps: firstly, selecting polyester fiber non-woven fabric, carrying out calendaring treatment on a calendar to obtain the polyester fiber non-woven fabric substrate, wherein the process conditions are that the pressure is 80-120t, the temperature of a hot roller is 80-120 ℃, and the speed is 10-30 m/min; then, coating a microporous foam coating on one surface of the polyester fiber non-woven fabric base material, wherein the coating is made of aqueous polyurethane emulsion, a foaming agent, a stabilizing agent, a thickening agent and a curing agent, foaming is carried out by adopting a mechanical foaming machine, the foaming ratio is 1:4-5, the thickness of a coating slurry layer is 0.3-0.5mm, the drying temperature is 110-.

Technical Field

The invention belongs to the technical field of functional textile materials, and particularly relates to a heat-proof infrared reconnaissance stealth fabric sewn and compounded by quilting lines.

Background

At present, more and more materials are used for military camouflage, such as camouflage nets, camouflage tents, individual camouflage clothes, sniping clothes and the like, and the materials have good anti-reconnaissance effects on visible light, near infrared light and radar wave bands, but the materials are not perfect in the aspect of anti-heat infrared reconnaissance technology. Taking the camouflage clothing for individual combat as an example, the camouflage effect of the camouflage clothing still needs to be further improved, especially in the aspect of heat-proof infrared imaging reconnaissance. The company provides a heat-proof infrared reconnaissance stealth fabric and a manufacturing method thereof in an invention patent with the publication number of CN 107554014B, and the manufactured stealth fabric can be effectively stealthed for more than 30min under an infrared imager. On the basis, how to further break through the limitation of the stealth time and how to further improve the portability of the stealth fabric are important subjects faced by the technical personnel in the field.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a heat-proof infrared reconnaissance stealth fabric formed by quilting and sewing composite materials, so as to improve the comprehensive performance of the fabric.

In order to achieve the purpose, the invention is realized by the following technical scheme: a thermal-resistant infrared reconnaissance stealth fabric sewn and compounded by quilting threads is formed by sewing a substrate layer, a heat-insulating foam layer and a surface layer by the quilting threads from the inner side to the outer side in sequence; the base layer is a filament woven fabric with one side plated with an aluminum-plated film, and the aluminum-plated film is positioned on the outer side; the heat insulation foam layer consists of a polyester fiber non-woven fabric base material and a microporous foam coating polyurethane film coated on the polyester fiber non-woven fabric base material; the surface layer is a filament woven fabric with one side plated with an aluminum plating film and the other side coated with a camouflage pattern, the aluminum plating film is positioned on the inner side, and the camouflage pattern is a low infrared emissivity coating which is coated on the surface of the filament woven fabric by adopting a spray painting process; the low infrared emissivity coating is prepared by the following steps:

s1: uniformly mixing 300 parts of water 250-one, 5-7 parts of allyl alcohol polyoxypropylene ether phosphate and 2-3 parts of allyl alcohol ether phosphate by weight to obtain a mixture A;

s2: uniformly mixing 50-60 parts of butyl acrylate, 10-12 parts of isopropyl styrene, 10-12 parts of vinyl acetate, 8-9 parts of petroleum ether, 5-7 parts of acetone and 2-7 parts of an oily pigment by weight to obtain a mixture B;

s3: uniformly mixing 30-40 parts of water, 15-20 parts of n-butanol, 2-3 parts of 1, 2-propylene glycol, 2-3 parts of 1, 4-butanediol, 5-7 parts of triton, 0.02 part of graphene, 2-3 parts of isopropyl titanate and 1-2 parts of ferric trichloride to obtain a mixture C;

s4: and mixing the mixture A and the mixture B, stirring and heating to 68 ℃, then adding 25-30 parts of aqueous solution containing 1 part of ammonium persulfate, preserving heat for 5-6h, then adding the mixture C, continuing preserving heat and stirring for 1.5-2h to obtain the low-infrared-emissivity coating.

In a further preferred embodiment of the present invention, in the heat insulation foam layer, the polyester fiber nonwoven fabric substrate is located at the inner side, and the microcellular foam coated polyurethane film is located at the outer side.

In a further preferable scheme of the invention, in the heat insulation foam layer, a metal heat conduction net layer is further clamped between the polyester fiber non-woven fabric substrate and the microporous foam coating polyurethane film.

The invention further preferably adopts the scheme that the metal heat-conducting net is a square-hole twill woven net, the diameter of the meshes is 2-4mm, and the diameter of the metal wires is 0.05-0.1 mm.

In a further preferable scheme of the invention, the quilting line is at least one of a warp quilting line, a weft quilting line, a warp and weft combined quilting line, a diamond quilting line, an arc quilting line and a curve quilting line.

According to a further preferred scheme of the invention, the camouflage pattern is a vegetation color camouflage pattern or desert color camouflage pattern; the camouflage patterns are prepared from a plurality of low infrared emissivity coatings containing different colors of oily pigments through a spray painting process.

In a further preferable embodiment of the present invention, the aluminum-plated films in the substrate layer and the surface layer can be obtained by vacuum aluminum plating or magnetron sputtering aluminum plating.

In a further preferred embodiment of the present invention, the thermal insulation foam layer is prepared by the following steps: firstly, selecting polyester fiber non-woven fabric, carrying out calendaring treatment on a calendar to obtain the polyester fiber non-woven fabric substrate, wherein the process conditions are that the pressure is 80-120t, the temperature of a hot roller is 80-120 ℃, and the speed is 10-30 m/min; then, coating a microporous foam coating on one surface of the polyester fiber non-woven fabric base material, wherein the coating is made of aqueous polyurethane emulsion, a foaming agent, a stabilizing agent, a thickening agent and a curing agent, foaming is carried out by adopting a mechanical foaming machine, the foaming ratio is 1:4-5, the thickness of a coating slurry layer is 0.3-0.5mm, the drying temperature is 110-.

The heat-proof infrared reconnaissance stealth fabric sewn and compounded by the quilting threads is formed by sewing the base layer, the heat-insulating foam layer and the surface layer by the quilting threads from the inner side to the outer side in sequence. The surface layer is a filament woven fabric with one side plated with an aluminizer and the other side coated with camouflage patterns. The filament woven fabric is taken as a foundation, so that the overall strength is ensured, and better sewability and durability are endowed; the aluminizer is mainly used for blocking heat infrared radiation from the inner side; the camouflage pattern is a camouflage pattern which can be effectively camouflaged in a visible light area, is made of raw materials with low infrared emissivity, and can be used for pertinently inhibiting the radiation characteristics in the range of two atmospheric windows (3.5-5.5 mu m and 8.0-14.0 mu m). Because the infrared radiation characteristic of the camouflage pattern material is optimized in a targeted manner, the heat insulation foam layer in the invention has different functions from the conventional heat insulation layer, and the heat insulation foam layer mainly aims to inhibit local high temperature possibly existing in the heat insulation foam layer from being conducted to a surface layer, such as heat sources of hot food bags, flames and the like, and the infrared radiation of the surface layer basically meets the stealth requirement for the temperature of a human body or the temperature close to the human body; furthermore, the preferred solution of sandwiching the wire mesh in the insulating foam layer is also aimed at suppressing possible local overheating. In the substrate layer, the filament woven fabric is taken as a foundation, so that the overall strength is ensured, and better sewability and durability are endowed; the aluminizer is mainly used to block the thermal infrared radiation directly from the inside. The quilting line sewing process can overcome the difficulty of large gluing difficulty among the basal layer, the heat insulation foam layer and the surface layer, effectively integrates the three layers into a whole, and has good durability and strong reliability.

Has the advantages that: the heat-proof infrared reconnaissance stealth fabric sewn and compounded by the quilting threads can effectively inhibit radiation characteristics within two atmospheric windows of 3.5-5.5 microns and 8.0-14.0 microns, can respond to local high temperature in a short time, has strong comprehensive stealth performance, and has better reliability and durability.

Drawings

FIG. 1 is a graph of emissivity of the present invention.

Detailed Description

The invention will be further illustrated by the following specific examples, which are given for the purpose of illustration only and are not intended to be limiting.