阅读说明：本技术 一种伪装帐篷面料的微孔泡沫涂层处理工艺 (Microporous foam coating treatment process for camouflage tent fabric ) 是由 张羽纶 沈定南 于 2020-05-29 设计创作，主要内容包括：本发明属于隐身材料领域,更具体地说,涉及一种伪装帐篷面料的微孔泡沫涂层处理工艺,依次由以下步骤组成：(S1)制备基材、(S2)制备面材、(S3)压合微孔泡沫涂层、(S4)镀铝、(S5)低红外发射处理。与现有技术相比,本发明提供的伪装帐篷面料的微孔泡沫涂层处理工艺,步骤简单,操作便捷,成本经济,制得的伪装帐篷面料整体性好,结构可靠耐用,具有较强的抗红外侦查能力,为此类面料的制备提供了一条具有借鉴性的可行路径。(The invention belongs to the field of stealth materials, and particularly relates to a microporous foam coating treatment process of a camouflage tent fabric, which sequentially comprises the following steps: (S1) preparing a base material, (S2) preparing a surface material, (S3) laminating a microporous foam coating, (S4) aluminizing, and (S5) low infrared emission treatment. Compared with the prior art, the microporous foam coating treatment process for the camouflage tent fabric provided by the invention has the advantages of simple steps, convenience and rapidness in operation, low cost, good integrity of the prepared camouflage tent fabric, reliable and durable structure, and strong infrared detection resistance, and provides a feasible path with reference for the preparation of the fabric.)

1. A microporous foam coating treatment process of a camouflage tent fabric is characterized by comprising the following steps: the method sequentially comprises the following steps:

(S1) preparing a substrate: selecting polyester fiber non-woven fabric, and performing calendaring treatment on the polyester fiber non-woven fabric on a calendar to obtain a polyester fiber non-woven fabric substrate;

(S2) preparing a face material: coating an adhesive on one side of a part of polyester fiber non-woven fabric subjected to light pressing treatment, and then pressing a heat-conducting wire mesh on the surface to obtain the surface material;

(S3) laminating the microcellular foam coating: spraying a water-based polyurethane foaming material on one side of the surface material with the heat-conducting wire mesh, covering a base material on the foaming material, integrally pressing the surface material, the base material and the microporous foam coating by adopting a continuous rolling process, and then drying and curing;

(S4) aluminum plating: plating an aluminum film on the exposed surface of the base material;

(S5) low infrared emission processing: and spraying a camouflage pattern coating with low infrared emissivity on the exposed surface of the surface material.

2. The process of claim 1 for treating the microporous foam coating of the camouflage tent fabric, wherein the process comprises the following steps: in step (S1), calender processing parameters are set as follows: the pressure is 90-130t, the temperature of the hot rod is 80-120 ℃, and the speed is 10-20 m/min.

3. The process of claim 1 for treating the microporous foam coating of the camouflage tent fabric, wherein the process comprises the following steps: in the step (S2), the adhesive is coated by a spraying or roll coating mode, the wire mesh is a stainless steel wire mesh, the reticulate pattern is a hexagonal hole twisted mesh, the hole diameter of the mesh is 2-4mm, and the diameter of the wire is 0.15-0.2 mm.

4. The process of claim 1 for treating the microporous foam coating of the camouflage tent fabric, wherein the process comprises the following steps: in the step (S3), the aqueous polyurethane foaming material includes an aqueous polyurethane emulsion, a foaming agent, a stabilizer, a thickener and a curing agent; foaming by a mechanical foaming machine, wherein the foaming ratio is 1:4-5, the coating thickness is 0.5-0.6mm, the drying temperature is 95-105 ℃, the curing temperature is 150-.

5. The process of claim 1 for treating the microporous foam coating of the camouflage tent fabric, wherein the process comprises the following steps: in the step (S4), the thickness of the aluminizer is 0.8-4 μm, and the surface thermal infrared emissivity is less than or equal to 0.2.

6. The process of claim 1 for treating the microporous foam coating of the camouflage tent fabric, wherein the process comprises the following steps: in the step (S4), the aluminum-plated film is processed by a vacuum aluminum-plating process or a magnetron sputtering aluminum-plating process.

7. The process of claim 1 for treating the microporous foam coating of the camouflage tent fabric, wherein the process comprises the following steps: in the step (S5), the pattern of the camouflaged pattern coating is a vegetation color camouflaged pattern or desert color camouflaged pattern.

8. The process of claim 1 for treating the microporous foam coating of the camouflage tent fabric, wherein the process comprises the following steps: in the step (S5), the camouflage pattern coating is obtained by using LATEX type water-based LATEX inks with different colors and containing infrared stealth micro powder through spray painting.

9. The process of claim 8 for treating the microporous foam coating of the camouflage tent fabric, wherein the process comprises the following steps: the LATEX type water-based LATEX ink comprises, by mass, 5-18% of infrared stealth micro powder and is prepared from one or more of aluminum nitride, zinc selenide, magnesium fluoride, barium fluoride, germanium powder and silver powder.

Technical Field

The invention belongs to the technical field of special materials, and particularly relates to a microporous foam coating treatment process of a camouflage tent fabric.

Background

The camouflage tent fabric is a special material with military camouflage function, and is required to have good anti-reconnaissance effect on visible light and near infrared light. Generally, camouflage tent fabrics are compounded from multiple layers of materials having different functions, including infrared blocking materials, heat insulating materials, low infrared emission materials, and the like. In order to pursue a good infrared reconnaissance effect, the composite layer of the fabric of the camouflage tent is often caused to be multiple and the structure is complex, the construction and the transportation of the tent are not facilitated, certain limitation is caused to the mobility, and in addition, the multilayer structure is also not beneficial to the improvement of the reliability and the durability.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the microporous foam coating treatment process of the camouflage tent fabric, which can organically combine a plurality of layers of functional materials, thereby obviously improving the reliability and durability of the camouflage tent fabric.

In order to achieve the purpose, the invention is realized by the following technical scheme: a microporous foam coating treatment process of a camouflage tent fabric sequentially comprises the following steps:

(S1) preparing a substrate: selecting polyester fiber non-woven fabric, and performing calendaring treatment on the polyester fiber non-woven fabric on a calendar to obtain a polyester fiber non-woven fabric substrate;

(S2) preparing a face material: coating an adhesive on one side of a part of polyester fiber non-woven fabric subjected to light pressing treatment, and then pressing a heat-conducting wire mesh on the surface to obtain the surface material;

(S3) laminating the microcellular foam coating: spraying a water-based polyurethane foaming material on one side of the surface material with the heat-conducting wire mesh, covering a base material on the foaming material, integrally pressing the surface material, the base material and the microporous foam coating by adopting a continuous rolling process, and then drying and curing;

(S4) aluminum plating: plating an aluminum film on the exposed surface of the base material;

(S5) low infrared emission processing: and spraying a camouflage pattern coating with low infrared emissivity on the exposed surface of the surface material.

The invention integrally presses the base material, the surface material and the microporous foam coating into a mold, has simple process and reliable structure, thereby achieving better durability and stability. Wherein the aluminizing of the substrate side serves to block thermal infrared radiation from within the camouflage tent. The microporous foam coating plays the triple roles of isolating heat, bonding a base material and a surface layer, increasing softness and improving touch feeling. The heat-conducting wire mesh in the surface layer can prevent local overheating on the surface, and meanwhile, the wire mesh can improve the overall strength of the camouflage tent fabric and has certain ductility; the camouflage pattern coating with low infrared emissivity sprayed on the outer side of the surface layer can effectively improve the detection prevention capability of good infrared wave bands.

Preferably, in the above microporous foam coating treatment process for the camouflage tent fabric, in the step (S1), the calender processing parameters are set as follows: the pressure is 90-130t, the temperature of the hot rod is 80-120 ℃, and the speed is 10-20 m/min.

Preferably, in the step (S2), the adhesive is coated in a spraying or roll coating manner, so that the thickness of the adhesive can be conveniently controlled and the adhesive can be uniformly coated; the metal wire mesh is made of stainless steel wire mesh, so that the strength is high, the corrosion is not easy, and the durability is high; the reticulate pattern is a hexagonal hole twisted mesh and has certain ductility; the aperture of the mesh is 2-4mm, the diameter of the metal wire is 0.15-0.2mm, and the strength and the thickness are moderate.

Further, in the above microporous foam coating treatment process for the camouflage tent fabric, in the step (S3), the aqueous polyurethane foaming material includes an aqueous polyurethane emulsion, a foaming agent, a stabilizer, a thickener and a curing agent; preferably, a mechanical foaming machine is adopted for foaming, the foaming ratio is 1:4-5, the coating thickness is 0.5-0.6mm, the drying temperature is 95-105 ℃, the curing temperature is 150-.

Preferably, in the microporous foam coating treatment process of the camouflage tent fabric, in the step (S4), the thickness of the aluminizer is 0.8 to 4 μm, and the surface thermal infrared emissivity is less than or equal to 0.2.

Preferably, in the microporous foam coating treatment process for the camouflage tent fabric, in the step (S4), the aluminum-plated film is processed by a vacuum aluminum plating process or a magnetron sputtering aluminum plating process in the step (S4).

Preferably, in the above microporous foam coating treatment process for the camouflage tent fabric, in the step (S4), the pattern of the camouflage pattern coating is a vegetation color camouflage pattern or desert color camouflage pattern in the step (S5).

Further, in the microporous foam coating treatment process of the camouflage tent fabric, in the step (S4) and in the step (S5), the camouflage pattern coating is obtained by spraying and painting LATEX type aqueous LATEX inks with different colors and containing infrared stealth micro powder.

Preferably, in the microporous foam coating treatment process for the camouflage tent fabric, in the step (S4), the infrared stealth micro powder accounts for 5 to 18% by mass of the LATEX ink of the LATEX type, and is selected from one or more of aluminum nitride, zinc selenide, magnesium fluoride, barium fluoride, germanium powder and silver powder.

Has the advantages that: compared with the prior art, the microporous foam coating treatment process for the camouflage tent fabric provided by the invention has the advantages of simple steps, convenience and rapidness in operation, low cost, good integrity of the prepared camouflage tent fabric, reliable and durable structure, and strong infrared detection resistance, and provides a feasible path with reference for the preparation of the fabric.

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.