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A kind of preparation method of thermosensitive discoloration non-woven fabric

A heat-sensitive color-changing technology, heat-sensitive color-changing fiber technology, applied in the field of non-woven fabrics, can solve the problems of reduced durability of heat-sensitive color-changing fibers, high temperature resistance requirements of color-changing agents, poor hand feeling, etc., and achieve low price and heat resistance Effect of high and good physical and mechanical properties and heat resistance

Active Publication Date: 2022-05-10
FUJIAN HENGAN HYGIENE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, in view of the above content, the present invention provides a method for preparing a heat-sensitive color-changing non-woven fabric, which solves the high temperature resistance requirements of the color-changing agent required for the preparation of heat-sensitive color-changing fibers in the prior art, and the durability loss of the prepared heat-sensitive color-changing fibers , the problem of poor hand feeling

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for preparing a heat-sensitive color-changing non-woven fabric, the preparation steps are as follows:

[0022] (1) Use heat-sensitive color-changing fibers and ordinary ES fibers as the fiber raw materials of heat-sensitive color-changing non-woven fabrics, wherein the mass ratio of heat-sensitive color-changing fibers and ordinary ES fibers is 70:30;

[0023] The heat-sensitive color-changing fiber is a skin-core structure, including a skin layer and a core layer, and the skin layer includes the following raw materials in parts by weight: 3 parts of crystal violet lactone, 15 parts of benzyl p-hydroxybenzoate, 90 parts of polyethylene glycol 1500, 10 parts of zinc stearate, 100 parts of polyethylene, the core layer is polyethylene terephthalate, and the cortex accounts for 60% of the total weight of the thermosensitive color-changing fiber;

[0024] The preparation method of the heat-sensitive color-changing fiber is as follows: (a) Weigh the chromogenic agent...

Embodiment 2

[0028] A method for preparing a heat-sensitive color-changing non-woven fabric, the preparation steps are as follows:

[0029] (1) Use heat-sensitive color-changing fibers and ordinary ES fibers as the fiber raw materials of heat-sensitive color-changing non-woven fabrics, wherein the mass ratio of heat-sensitive color-changing fibers and ordinary ES fibers is 50:50;

[0030] The heat-sensitive color-changing fiber is a sheath-core structure, including a skin layer and a core layer, and the skin layer includes the following raw materials in parts by weight: 0.8 parts of 1,3-dimethyl-6-diethylaminofluorane, 1 part of 4- Hydroxycoumarin, 30 parts of polyethylene glycol 1500, 5 parts of zinc stearate, 60 parts of polyethylene, the core layer is polyethylene terephthalate, and the skin layer accounts for the total weight of the thermosensitive color-changing fiber 40%;

[0031]The preparation method of the heat-sensitive color-changing fiber is: (a) weighing each weight part of 1...

Embodiment 3

[0035] A method for preparing a heat-sensitive color-changing non-woven fabric, the preparation steps are as follows:

[0036] (1) Use heat-sensitive color-changing fibers and ordinary ES fibers as the fiber raw materials of heat-sensitive color-changing non-woven fabrics, wherein the mass ratio of heat-sensitive color-changing fibers and ordinary ES fibers is 90:10;

[0037] The heat-sensitive color-changing fiber is a skin-core structure, including a skin layer and a core layer, and the skin layer includes the following raw materials in parts by weight: 2 parts of benzoyl leucomethylene blue, 30 parts of terephthalic acid, 60 parts of polyethylene Glycol 1500, 8 parts of zinc stearate, 80 parts of polyethylene, the core layer is polyethylene terephthalate, and the cortex accounts for 20% of the total weight of the thermosensitive color-changing fiber;

[0038] The preparation method of the heat-sensitive color-changing fiber is as follows: (a) take by weight the benzoyl leuc...

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 relates to the technical field of non-woven fabrics, and provides a method for preparing heat-sensitive color-changing non-woven fabrics, which solves the high temperature resistance requirements of the color-changing agent required to prepare heat-sensitive color-changing fibers in the prior art and the durability of the prepared heat-sensitive color-changing fibers. The problem of loss and poor hand feeling includes the following steps: (1) using heat-sensitive color-changing fiber and ordinary ES fiber as the raw material of heat-sensitive color-changing non-woven fabric; the heat-sensitive color-changing fiber is a skin-core structure, including a skin layer and a core layer, the skin layer includes the following raw materials in parts by weight: 0.8 to 3 parts of color developing agent, 1 to 30 parts of color developing agent, 30 to 90 parts of polyethylene glycol 1500, 60 to 100 parts of polyethylene, and the core layer is Polyethylene terephthalate; (2) heat-sensitive color-changing fibers and ordinary ES fibers are respectively subjected to loosening and mixing, carding, hot-air bonding, cooling and setting to obtain the first non-woven fabric and the second non-woven fabric; (3) Composite the first non-woven fabric and the second non-woven fabric prepared in step (2) online.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, in particular to a method for preparing heat-sensitive color-changing non-woven fabrics. Background technique [0002] Thermosensitive color-changing fibers refer to fibers whose color changes with temperature. Products made of heat-sensitive color-changing fibers have heat-sensitive color-changing effects, and can be widely used in industries, daily necessities, etc., such as making heat-sensitive color-changing non-woven fabrics to make up for the single color expression of non-woven fabrics. There are mainly two preparation methods for the existing heat-sensitive color-changing fibers. One method is to fill the heat-sensitive color-changing agent into the fiber during dry spinning. However, because the dry spinning temperature is usually above 200°C, this The requirements for heat-sensitive color-changing agents are very high, and the production limitations are relatively large; ano...

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 Patents(China)
IPC IPC(8): D04H1/541D04H1/559D04H1/555D01F8/06D01F8/14D01F8/16D01F1/10
CPCD04H1/541D04H1/559D04H1/555D01F8/06D01F8/14D01F8/16D01F1/10
Inventor 祝二斌
Owner FUJIAN HENGAN HYGIENE MATERIAL
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