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Modified long-acting photochromic microcapsule, preparation method, photochromic dye printing paste containing modified long-acting photochromic microcapsule and application

A photochromic dye and photochromic technology, applied in the field of clothing fabrics, can solve the problems of photochromic material failure, service life, background color, photochromic material failure, etc. Dispersibility and stability, avoiding the effect of uneven color

Pending Publication Date: 2020-07-28
TOREAD HOLDING GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned photochromic materials are all made by directly adding photochromic dyes to fabrics. During the preparation process, photochromic materials will inevitably be affected by active groups and changes in pH, resulting in photochromic materials. Failure or greatly reduced service life
[0006] Although there are many reports that the preparation method of microencapsulation can protect the photochromic material from being damaged during processing, but the process conditions are not perfect, which will still cause the photochromic material to fail, partially destroy and appear in the manufacturing process. Background color and other issues

Method used

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  • Modified long-acting photochromic microcapsule, preparation method, photochromic dye printing paste containing modified long-acting photochromic microcapsule and application
  • Modified long-acting photochromic microcapsule, preparation method, photochromic dye printing paste containing modified long-acting photochromic microcapsule and application
  • Modified long-acting photochromic microcapsule, preparation method, photochromic dye printing paste containing modified long-acting photochromic microcapsule and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A modified long-acting photochromic microcapsule is a photochromic microcapsule coated with aluminum oxide, and the preparation method is as follows:

[0072] 1) Mix 30 g of photochromic microcapsules and 40 g of water, add 5 g of sodium hexametaphosphate to the above mixing system, mix at 60°C for 30 minutes, adjust the pH to 7.0, and obtain a mixed solution;

[0073] 2) Add 10 g of sodium metaaluminate to the mixed solution obtained in step 1), and titrate with a 1 mol / L sulfuric acid solution. After the titration is completed, add sodium hydroxide to adjust the pH to 9.5, and age at 62° C. for 2 h. Suction filter the solution after thawing in a Buchner funnel, cool the massive powder obtained by suction filtration to 30°C, first use a high-speed pulverizer for primary pulverization, and then use a jet pulverizer for fine pulverization to obtain the modified Long-lasting photochromic microcapsules.

Embodiment 2-3

[0075] The difference from Example 1 is that in this example, the added amount of the photochromic microcapsules is 10 g (Example 2) and 50 g (Example 3).

Embodiment 4-5

[0077] The difference with Example 1 is that in this example, the addition amount of the sodium metaaluminate is 3g (Example 4), 30g (Example 5).

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Abstract

The invention provides a modified long-acting photochromic microcapsule, a preparation method, a photochromic dye printing paste containing the modified long-acting photochromic microcapsule and application. The modified long-acting photochromic microcapsule is an aluminum oxide or silicon dioxide coated photochromic microcapsule. According to the modified long-acting photochromic microcapsule, alayer of aluminum oxide or silicon dioxide is deposited on the surface of the photochromic microcapsule, the coating structure can protect an organic shell of the photochromic microcapsule from beingdissolved and damaged by the printing paste, and the dispersity and stability of modified long-acting photochromic microcapsule powder in the printing paste can further be effectively improved. In addition, the modified long-acting photochromic microcapsule can be uniformly dispersed in the printing paste, and the problems of local sedimentation of the microcapsule powder in the printing paste anduneven flower colors in subsequent printing are solved.

Description

technical field [0001] The invention relates to the technical field of clothing fabrics, in particular to a modified long-acting photochromic microcapsule and a preparation method thereof, a photochromic dye printing paste containing the same and an application thereof. Background technique [0002] Photochromic materials have emerged in recent years. Clothing made of this material has the characteristic of changing color under light, bringing novel and beautiful visual impact to the wearer of the clothing, and also has an ultraviolet indication effect. [0003] CN105167224A discloses a textile garment that changes color with the intensity of light, including a garment body, on which several photochromic bands are arranged, the photochromic bands are made of photochromic materials, and the photochromic materials include the following raw materials in parts by weight; 80-100 parts of chromogenic material, 1-10 parts of antioxidant, 1-10 parts of dispersant, 1-10 parts of auxi...

Claims

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Application Information

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IPC IPC(8): D06P1/00D06P1/673B01J13/02
CPCD06P1/004D06P1/673D06P1/67383B01J13/02
Inventor 胥雪双郭志超刘昊海陈百顺王静盛发强
Owner TOREAD HOLDING GROUP CO LTD
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