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Application of ultraviolet absorbent in finishing of textile

A UV absorber and fabric finishing technology, which is applied in fiber treatment, plant fiber, textiles and paper making, can solve the problems of yellowing and low washing fastness, and achieve good anti-yellowing, good washing fastness, Good anti-ultraviolet effect

Active Publication Date: 2018-01-12
上海拓纳化学新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems such as low washing fastness and yellowing, the present invention provides an application of an ultraviolet absorber in the anti-ultraviolet finishing of cotton fabrics. Its structure is shown in (1), and the compound has better anti-ultraviolet Ultraviolet effect, after it absorbs ultraviolet rays and reaches the electronically excited state, it will convert back to the ground state through ultra-fast photoisomerization, effectively transferring the energy of ultraviolet rays to the environment, and the cotton fabrics treated by it have better Anti-ultraviolet effect and wash resistance, but also effectively prevent yellowing of fabrics

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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  • Application of ultraviolet absorbent in finishing of textile
  • Application of ultraviolet absorbent in finishing of textile
  • Application of ultraviolet absorbent in finishing of textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: the anti-ultraviolet finishing of cotton fabric by independent ultraviolet absorber

[0030] Dissolve 30g / L of the UV absorber of chemical formula (I) in the finishing solution and heat to 40°C, put the pre-moistened cotton fabric into the solution, the bath ratio is 1:20, and add 3g / L of salt at the same time , reacted for 30 minutes, then raised the temperature to 90°C, kept it warm for 60 minutes, took out the fabric, washed it with water, and dried it at 60°C for 2 hours to obtain the finished fabric, and measured its UV absorption effect (UPF value 65.8±5) and other properties (see table 2).

[0031] Table 1 Cotton fabric alone UV absorber finishing prescription

[0032]

[0033] Table 2 Comparison of properties of cotton fabrics before and after separate finishing

[0034]

Embodiment 2

[0035] Embodiment 2: Cotton fabric washing resistance test of UV absorber finishing separately

[0036] The cotton fabric obtained in Example 1 after UV protection was subjected to washing durability test.

[0037] Specific experimental conditions: The bath ratio is 1:30, the concentration of the lotion is 1.1g / L, wash at 30°C for 10 minutes, dehydrate, then wash with water for 2 minutes, spin dry, wash with water for 2 minutes, and dry. Then the above operation was repeated 5 times on the fabric, and the UPF value of the fabric after 5 washings was tested by a textile ultraviolet protection factor tester (Cary50) was 53.0±4.

Embodiment 3

[0038] Embodiment 3: Cotton fabric washing resistance test of UV absorber alone finishing

[0039] The cotton fabric obtained in Example 1 after UV protection was subjected to washing durability test.

[0040] Specific experimental conditions: The bath ratio is 1:30, the concentration of the lotion is 1.1g / L, wash at 30°C for 10 minutes, dehydrate, then wash with water for 2 minutes, spin dry, wash with water for 2 minutes, and dry. Then the above operation was repeated 10 times on the fabric, and the UPF value of the fabric after 10 washings was tested by a textile ultraviolet protection factor meter (Cary50) was 51.2±5.

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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Abstract

The invention discloses an application of a novel ultraviolet absorbent in ultraviolet prevention finishing of a textile, and belongs to the technical field of functional assistants. According to theapplication, the ultraviolet absorbent is prepared into a finishing solution for independent ultraviolet prevention finishing of the cotton textile. The finished cotton textile has a better ultraviolet prevention effect and better wash fastness; a UPF (ultraviolet protection factor) is still greater than 40 after washing for more than 30 times; and the ultraviolet prevention finishing has no obvious influence on other properties, such as breaking strength, breaking elongation and a fold recovery angle, of the textile. The ultraviolet absorbent and nano titanium dioxide are compounded for finishing the textile, and the finished textile has the better ultraviolet prevention effect by a physical shield and chemical absorption combined method.

Description

technical field [0001] The invention relates to the application of an ultraviolet absorber in fabric finishing, and belongs to the technical field of functional auxiliaries. Background technique [0002] Due to the environmental pollution caused by the development of industry, the discharge of a large amount of freon solvents has caused the ozone layer of the atmosphere to be continuously depleted and destroyed, and the ability to absorb ultraviolet radiation has been greatly weakened. Damage in many ways. Facing more and more serious environmental problems, people began to pay more attention to the protection of the environment, and also paid more attention to the protection of self-generation. [0003] Cotton fabric is very popular because of its excellent wearing comfort, moisture absorption and air permeability. It is easy to pass through cotton fabrics, so it is particularly important to perform UV protection on cotton fabrics. [0004] Ultraviolet absorbers can stro...

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): D06M13/224D06M11/46D06M15/263D06M101/06
Inventor 孙昌许长海杜金梅王树根倪佳东彭铃淇
Owner 上海拓纳化学新材料有限公司
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