Fire-resistant high-resiliency spandex fabric and method for making same

Abstract

The invention discloses a urethane elastic fiber with high temperature resistance and high elasticity and a preparation method thereof, the materials of the urethane elastic fiber comprise: polyether diols, diisocyanate, butanol, amine admixture, anti-oxidant, reelability agent, ultraviolet absorber, yellowing resistant agent and dimethyl acetamide; the preparation method of the urethane elastic fiber is that: a prepolymer is obtained through prepolymerization reation, and macromolecule polymer is also obtained through continuous chain extension reactions, then spinning solution is formed by adding different auxiliary agents; finally winding and dry spinning through round spinning channel are performed to obtain a high temperature high elastic urethane fiber spinning can which has the advantages of high temperature resistance, high elasticity, excellent reelability, outstanding yarn evenness, etc, and the preparation method can realize the continuous process of chain extension reactions and addition of auxiliary agents with continuous and stable production process and high product evenness and can completely meet the requirements of all kinds of novel fabrics and high grade fabrics.

Description

1. Technical field [0001] The invention relates to a high-temperature resistant and highly elastic spandex fiber and a preparation method thereof, and belongs to the technical field of spandex fiber and its preparation method. 2. Background technology [0002] In 1937, German Bayer Company first developed polyurethane resin and spandex elastic fiber. In 1959, DuPont Company of the United States took the lead in realizing the industrial production of dry spinning spandex fiber, and named it Lycra (Lycra). Then some European countries and Japan began to produce spandex one after another. . By the 1990s, with the development and application of various new technologies and materials in downstream industries, the application fields of spandex expanded rapidly, and the demand increased significantly, driving the development of the entire spandex industry. [0003] my country's spandex industry started relatively late, but the scale of the industry expanded rapidly. Since Yantai S...

AI Technical Summary

Problems solved by technology

However, because the development of technology research is relatively lagging behind the expansion speed of the market and production capacity, the production technology of many domestic spandex enterprises has the limitation of repeated aging, the product variety is single, and the quality cannot meet the needs of the high-end market and new fabrics.

[0004] In the existing spandex fiber production process, due to the limitations in the ratio of main raw materials for polymerization, the type selection of chain extenders, the form of chain extension reaction, and the properties of additives, etc., the raw solution obtained from polymerization has poor uniformity and stability. The physical and chemical properties of the final spandex fibers are quite different, especially in terms of heat resistance and elasticity, which generally cannot meet the requirements of emerging fabrics.