A three-component side-by-side composite elastic staple fiber and its manufacturing method

Abstract

The invention discloses a three-component side-by-side composite elastic staple fiber and a preparation method thereof. The three-component side-by-side composite elastic staple fiber comprises a fiber body, and the fiber body is processed by the following mass percentages: including Fiber body, the fiber body is processed from the following mass percentages of substances: 10%-50% of low-viscosity PET chips, 10%-50% of high-viscosity PET chips, 10%-50% of low-viscosity PTT chips, and 10%-50% of high-viscosity PTT chips Slices 10%‑50%, low viscosity PBT slices 10%‑50%, high viscosity PBT slices 10%‑50%. The present invention adopts PET, PBT and PTT materials. PET, PBT and PTT all belong to polyester fibers. The chemical structures of the three fibers are similar and have good interface bonding performance. Due to the differences in the physical properties of the three materials, they can form Permanent crimp elasticity, using three screws to individually control the preparation process of the three materials, and precisely controlling the ratio of the materials to develop a new elastic and comfortable three-component composite elastic staple fiber raw material.

Description

technical field [0001] The invention relates to a three-component side-by-side composite elastic staple fiber and a manufacturing method thereof. Background technique [0002] With the continuous improvement of people's living standards, people have higher and higher requirements for taking performance. Clothing materials have gradually expanded from traditional requirements for style, warmth, and aesthetics to functions, comfort, and personalization. Related materials have developed from conventional cotton, linen, silk, and wool to functional chemical fibers, which meet the functional comfort of consumers. The demand for related materials is developing most rapidly. Focusing on the consumer's demand for comfort and elasticity, various types of fiber materials have appeared on the market, but they all have certain defects. For example, elastic fabrics are popular in the international market. The raw materials of domestic high-elastic fabrics mainly rely on spandex, but sp...

AI Technical Summary

Problems solved by technology

The crimp radius of the bi-component fiber is relatively large, and the number of fiber crimps within a certain length range is small, which limits its elastic performance; bi-component fiber filaments are widely used, because there are fewer free ends of the fiber, and the fiber can flex freely degree is limited; in addition, the current research on the application of three-component composite fibers is mostly focused on filaments, such as CN110257954A (preparation method of three-component side-by-side composite fibers), which uses three components of PLA, PTT and PBT, but because The difference between the material properties of PLA material and other two components, the process control in the process of filament preparation is difficult, and the splitting and peeling phenomenon between the components is easy to occur

The research and application of the three-component composite elastic short fiber is still blank. In addition, the difference in properties between the three-component fibers will cause splitting and peeling after fiber formation. How to use similar structures, high bonding tightness and precise control of the ratio Advanced composite fiber preparation technology is the key to the preparation of three-component side-by-side fibers

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