Light-shielding composite film, preparation method thereof and application thereof

A composite film and shading technology, which is applied in the field of shading materials, can solve the problems that cannot meet the simple and light fashion development trend of decorative textiles, affect the appearance and shading of roller blinds, and deteriorate the drape performance and air permeability, etc. Application prospect and market prospect, easy industrial production, good shading effect

Active Publication Date: 2019-08-16
JIANGSU JUNLIN TEXTILE TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most of the full shading fabrics on the market have been coated, but the drape performance and air permeability of the coated fabrics are poor, and the coating is easy to oxidize, foam and fall off, which affects the shading effect.
[0006] Roller blind fabrics currently on the market will curl in different directions under different temperature conditions due to different fabric materials and film materials, which will affect the appearance and shading of roller blinds.
[0007] At present, various forms of blackout roller blinds on the market have poor shading properties. In order to achieve high shading effects, most of them use multi-layer roller blinds and thickened materials. The production methods of these blackout roller blinds cannot meet the simple and light requirements of decorative textiles. Popular development trend, for this purpose, the development of high shading, light and simple blackout roller blinds has become a market demand

Method used

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  • Light-shielding composite film, preparation method thereof and application thereof
  • Light-shielding composite film, preparation method thereof and application thereof
  • Light-shielding composite film, preparation method thereof and application thereof

Examples

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Effect test

preparation example Construction

[0043] Preparation of light-shielding composite film

[0044] like figure 1 As shown, the embodiment of the present invention provides a light-shielding composite film, which has a multilayer structure of light-reflecting layer 1-light-absorbing layer 2-light-reflecting layer 1-non-woven fabric 3-light-reflecting layer 1-light-absorbing layer 2-light-reflecting layer 1 ( The reflective layer 1 on the outside can contain pigments to present the required color), the present invention adopts the processing method of extruding into a film, and realizes the reflective layer-light-absorbing layer-reflective layer-non-woven fabric-reflective layer- Light-absorbing layer-light-reflecting layer seven-in-one light-shielding polymer film forming technology, the structural characteristics of the seven-layer polymer film, compared with the three-layer film structure of light-reflecting layer-light-absorbing layer-light-reflecting layer, has a higher shading effect At the same time, it als...

Embodiment 1

[0056] Mix the dried PE resin raw material with reflective particles and light-absorbing particles respectively; the mixing weight ratio of PE resin and light-reflecting particles is 64:35, and the mixing weight ratio of PE resin and light-absorbing particles is 69:30, and then add the dispersant EHBA1. 0 parts On the basis of thorough mixing, add the mixture into the three-screw extruder respectively to ensure that the mixed resin of reflective particles, mixed resin of light-absorbing particles and mixed resin of reflective particles are respectively directed to the upper, middle and lower layers of the extrusion die, such as image 3 shown.

[0057] The temperature control of the three-screw extruder is as follows: the temperature of the feeding heating zone is 30°C higher than the melting point of the resin, and the temperature of the three-input co-extrusion T-die is controlled at 25°C higher than the melting point.

[0058] The film extruded by the three-input co-extrusi...

Embodiment 2

[0062] Mix the dried PE resin raw material with reflective particles and light-absorbing particles respectively; the mixing weight ratio of PE resin and light-reflecting particles is 70:29, and the mixing weight ratio of PE resin and light-absorbing particles is 64:35, and then add the dispersant EHBA1. 0 part, on the basis of thorough mixing, add the mixture into the twin-screw extruder respectively, and ensure that the mixed resin of the reflective particles and the resin of the light-absorbing particles are respectively directed to the upper and lower layers of the extrusion film mouth, such as Figure 4 shown.

[0063] The temperature of the twin-screw extruder is controlled so that the temperature of the feed heating zone is 30°C higher than the melting point of the resin, and the temperature of the two-input co-extrusion and one die is controlled at 25°C higher than the melting point.

[0064] The two-input coextruded one-die extruded film was stretched to a thickness of...

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Abstract

The invention provides a light-shielding composite film, a preparation method thereof and the application thereof. The light-shielding composite film comprising an intermediate non-woven fabric and atleast one light-reflecting layer and at least one light-absorbing layer on each side of the non-woven fabric, the light-reflecting composite film, and a preparation method and application thereof Thelight absorbing layers are alternately disposed, wherein the light reflecting layer is made of a reflective particle and a resin, and the light absorbing layer is made of a light absorbing particle and a resin. The light-shielding composite film of the present invention has the advantages of strong light-shielding property, difficulty in curling, durability, light weight structure, and beautifulcolor.

Description

technical field [0001] The invention belongs to the technical field of light-shielding materials, and in particular relates to a light-shielding composite film and its preparation method and application. Background technique [0002] In people's daily life, the home environment and public buildings such as major hotels, offices, and conference rooms often need to control the brightness of the room to reduce the troubles caused by sunlight to life and work. [0003] In bedrooms, theaters, multimedia rooms, darkrooms and other places that require high light, a full blackout roller blind fabric is often required. [0004] For blackout curtain fabrics, not only is it required to be beautiful, but the key consideration is that it should have good shading properties against sunlight, and must also have good fastness properties. [0005] At present, most of the full shading fabrics on the market have been coated, but the drape performance and air permeability of the coated fabrics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/06B32B27/08B32B27/12B32B27/32B32B27/36B32B7/12B32B37/12
CPCB32B5/02B32B27/06B32B27/08B32B27/12B32B27/32B32B7/12B32B37/1207B32B37/1284B32B2037/1215B32B2262/02B32B2307/41B32B2307/416B32B2262/0276B32B5/00E06B9/40A47H23/08A47H23/10B32B5/024B32B27/16B32B2250/40B32B27/306B32B5/026B32B2262/0284B32B2307/734B32B2264/302B32B2307/732B32B5/022B32B2274/00B32B2264/1022B32B2262/0253B32B2264/104B32B27/40B32B2264/1056B32B2262/0261B32B2264/108B32B2307/718B32B27/36B32B2307/4026B32B2451/00B32B2250/05B32B2264/12B32B27/20B29C48/08B29C48/305B29C48/21B29C48/49B29C48/92B32B27/285B32B37/10B32B2250/03B32B2305/18B32B2307/72C08J5/18C08J2323/06
Inventor 陈利民严瑞祥
Owner JIANGSU JUNLIN TEXTILE TECH LTD
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