Photochromic cloth and preparation method

A photochromic and photochromic technology, applied in the field of textile fabrics, can solve the problems of discoloration performance failure, loss of photochromic compound materials, and shortening of fabric discoloration life. performance effect

Inactive Publication Date: 2017-02-01
SUZHOU XINGFENGQIANG TEXTILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the color-changing photosensitive fiber is a photosensitive color-changing fiber material. The photosensitive color-changing fiber material is obtained by dipping polyester fiber in a solution with a photosensitive color-changing compound. The photosensitive color-changing compound material is easy to be directly exposed to the external environment. The discoloration performance will fail, and after the simple dipping process, the photosensitive discoloration compound material will be lost after the fabric is washed many times, and the discoloration life of the fabric will be shortened

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Photochromic cloth and preparation method
  • Photochromic cloth and preparation method
  • Photochromic cloth and preparation method

Examples

Experimental program
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Effect test

preparation example Construction

[0049] The preparation method of photochromic cloth of the present invention comprises the following steps:

[0050] 1) Prepare base fabric layer 1 with spandex fiber as raw material;

[0051] 2) Melt-spinning the photochromic compound and polyester to prepare the photochromic fiber, using the photochromic fiber as the raw material to prepare the photochromic fiber layer 21;

[0052] 3) Using melamine resin as the wall material and the tetrachlorethylene solution of spirooxazine compounds as the core material, the photochromic microcapsules were prepared by in-situ polymerization, and the photochromic microcapsules were fixed on the adhesive to prepare Obtain the photochromic microcapsule layer 22;

[0053] 4) The photochromic fiber layer 21 prepared in step 2) and the photochromic microcapsule layer 22 prepared in step 3) are alternately stacked to prepare a photochromic layer 2;

[0054] 5) coating the nano silicon dioxide layer 3 on the surface of the photochromic layer 2...

Embodiment 1

[0058] In step 2), the mass ratio of photochromic compound to polyester in the raw materials for photochromic fiber preparation is 1:30.

[0059] In step 3), the preparation process of photochromic microcapsules is that the tetrachlorethylene solution of 0.5% spirooxazine compound is added to the aqueous solution of 0.1% sodium lauryl sulfate by 6ml mass concentration placed in an emulsifier and emulsified for 20 minutes at a speed of 15000rpm to obtain an emulsion; add 30ml of melamine resin prepolymer with a mass concentration of 35% to the prepared emulsion, adjust the pH value to 4 with hydrochloric acid, and then add 50ml of 4.5% polyethylene glycol, heated to 60°C, kept warm for 4 hours, stopped the reaction to obtain photochromic microcapsules; washed with deionized water and dried to obtain photochromic microcapsules.

Embodiment 2

[0061] In step 2), the mass ratio of photochromic compound to polyester in the raw materials for photochromic fiber preparation is 3:40.

[0062] In step 3), the preparation process of the photochromic microcapsules is that 10ml of the mass concentration of 0.8% spirooxazine compound perchlorethylene solution is added to 70ml of the mass concentration of 0.1% sodium lauryl sulfate placed in an emulsifier and emulsified at 20,000rpm for 20min to obtain an emulsion; add 50ml of melamine resin prepolymer with a mass concentration of 50% to the prepared emulsion, adjust the pH value to 5 with hydrochloric acid, and then add 100ml The polyethylene glycol with a mass concentration of 2% is heated to 70° C., kept for 3 hours, and the reaction is stopped to obtain photochromic microcapsules; washed with deionized water and dried to obtain photochromic microcapsules.

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Abstract

The invention discloses photochromic cloth and a preparation method thereof, which relates to the technical field of textile fabric. The photochromic cloth of the present invention comprises a base layer, a photochromic layer, and a nano-silica layer, wherein the photochromic layer is disposed between the base fabric layer and the nano-silica layer, and is composed of a photochromic fiber layer and a photochromic microcapsule layer alternately. The photochromic fiber layer cooperates with the photochromic microcapsule layer to make the photochromic cloth achieve good photochromic effect and strong persistence under sunlight and ultraviolet light. The nano-silica in the nano-silica layer is combined with the photochromic colorant in the photochromic fiber layer and the photochromic microcapsule layer to make the photochromic cloth more easily absorb sunlight, and ultraviolet light in the UV and faster, more likely to show the color change function. The photochromic fiber layer is resistant to washing, so that the photochromic cloth has a lasting discoloration performance.

Description

technical field [0001] The invention relates to the technical field of textile fabrics, in particular to a photochromic cloth and a preparation method thereof. Background technique [0002] With the development of society and the continuous improvement of people's living standards, people have put forward more stringent requirements for the functionality, comfort and aesthetics of clothing. At present, most of the clothes made of fabrics lack movement, and the color is single, which is too monotonous and dull, and cannot bring more beauty and fun to people, especially young people who like to pursue fashion elements. Single-color fabrics cannot satisfy The demand of the market also constrains the choice of clothing designers for individual clothing fabrics. Recently, on the basis that the basic functions of clothes remain unchanged, people pay more and more attention to the additional functions of clothes, constantly research and develop new materials for clothes, and use a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B27/06B32B27/36B32B27/40B32B33/00
CPCB32B5/02B32B33/00B32B2262/0276B32B2262/0292
Inventor 王方明
Owner SUZHOU XINGFENGQIANG TEXTILE TECH CO LTD
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