High-performance polyester composite elastic fiber and manufacturing method thereof

Abstract

The invention provides a high-performance polyester composite elastic fiber with good dyeability. The composite fiber is prepared from two polyester or copolyester components with viscosity differences through a composite spinning process, wherein the high-viscosity component accounts for 30 to 70 percent by weight, and the low-viscosity component accounts for 70 to 30 percent by weight. The composite fiber has a parallel or eccentric core sheath type structure, and has good curling property, natural resilience and dyeability; meanwhile, the manufacturing process is simple and convenient and easy to operate; the low-temperature dyeing property of the composite fiber has the functions of environmental protection and energy conservation; and the composite fiber of the invention can be widely applied to various woven and knitted elastic fabrics.

Description

Technical field:

[0001] The invention relates to a cationic dyeable elastic composite fiber prepared by composite spinning of two polyester or copolyester components and a manufacturing method thereof. Background technique:

[0002] The working principle of the two-component composite elastic fiber is that different components in the fiber have different thermal shrinkage properties, so that it has a permanent main helical structure, which is visually speaking like a telephone wire coiled and has permanent elasticity. At the same time, the post-treatment process of the fabric Unaffected, the fabric offered has many advantages. Now, as people's pursuit of fabric color and pattern is getting higher and higher, the dyeing effect of polyester elastic fabric is no exception. However, most of the current research on elastic fibers is difficult to satisfy the high shrinkage performance and dyeing performance of the fiber at the same time. . As we all know, cationic dyes have the ...

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