Preparation method of thermosensitive color change non-woven fabric

Abstract

The invention relates to the technical field of a non-woven fabric, provides a preparation method of a thermosensitive color change non-woven fabric, and solves problems that in the prior art, a color-changing agent required for preparing thermosensitive color change fibers has a high requirement for temperature resistance, durability of the prepared thermosensitive color change fibers is reducedand the prepared thermosensitive color change fibers are poor in hand feeling. The preparation method comprises the following steps of: (1) using thermosensitive color change fibers and common ES fibers as raw materials of the thermosensitive color change non-woven fabric, wherein the thermosensitive color change fibers are of a skin-core type structure and comprise skin layers and core layers, each skin layer comprises the following raw materials in parts by weight: 0.8 to 3 parts of color fixative, 1 to 30 parts of color developing agent, 30 to 90 parts of polyethylene glycol 1500 and 60 to100 parts of polyethylene, and each core layer is polyethylene terephthalate; (2) respectively carrying out opening mixing, carding, hot air adhesion and cooling setting on the thermosensitive color change fibers and the common ES fibers to prepare a first non-woven fabric and a second non-woven fabric; and (3) carrying out online compounding on the first non-woven fabric and the second non-wovenfabric which are prepared in the step (2).

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...

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