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High-performance polyester composite elastic fiber and manufacturing method thereof

A composite elastic fiber and composite fiber technology, applied in cationic dyeable elastic composite fiber and its manufacturing field, can solve the problems of non-coloring of PET components, PET does not have cationic dyeability, performance impact, etc., and achieve cationic dyeability Excellent, excellent wrinkle resistance and shape retention, the effect of overcoming insufficient coloring

Inactive Publication Date: 2010-06-02
SHANGHAI VITA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Patent CN1280462C discloses a composite elastic fiber manufacturing method, one of its components is PET, and the other is PET, CO-PET, PTT or PBT. Due to the existence of PET components, this type of fiber does not have cationic dyeability , and there is a dyeing temperature difference between the two components during dyeing, the PET component will not be colored when dyed at low temperature, and the performance of PTT or PBT component will be affected when dyed at high temperature, with rough hand feeling and poor elasticity
Patent CN 1854355A discloses a CDP / PET cationic dyeable composite elastic fiber, but there is still a component PET that does not have cationic dyeability, so the composite fiber has the defects of low color uptake and color difference, and requires high temperature and high pressure conditions dyeing

Method used

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  • High-performance polyester composite elastic fiber and manufacturing method thereof
  • High-performance polyester composite elastic fiber and manufacturing method thereof
  • High-performance polyester composite elastic fiber and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0019] The CDP component A with an intrinsic viscosity of 0.58dL / g and the CDP component B that has been viscosified to 0.80dL / g in the solid phase, the weight ratio of the two is 30:70, and the composite spinning is carried out in a parallel structure, and the spinning The temperature is 280°C, and the fiber is dry-heated at 150°C to obtain a cationic dyeable composite elastic fiber with excellent properties. The crimp stretch rate is 35%, the crimp elastic recovery rate is 80%, and the dyeable temperature is 130°C. The results are shown in Table 1.

Embodiment 2

[0021] The CDP component A with an intrinsic viscosity of 0.70dL / g and the CDP component B with a solid phase viscosity increased to 1.05dL / g, the weight ratio of the two is 70:30, and composite spinning is carried out according to the eccentric core-sheath structure, The spinning temperature was 288°C, and the fiber was treated with heat and humidity at 90°C to obtain a cationic dyeable composite elastic fiber with excellent performance. The crimp stretch rate was 42%, the crimp elastic recovery rate was 71%, and the dyeable temperature was 130°C. The results are shown in Table 1 .

Embodiment 3

[0023] The CDP component A with an intrinsic viscosity of 0.60dL / g and the CDP component B with a solid phase viscosity increased to 1.10dL / g, the weight ratio of the two is 40:60, and the composite spinning is carried out in a parallel structure, and the spinning The temperature is 290°C, and the fiber is dry-heated at 150°C to obtain a cationic dyeable composite elastic fiber with excellent properties. The crimp stretch rate is 53%, the crimp elastic recovery rate is 79%, and the dyeable temperature is 130°C. The results are shown in Table 1.

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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 ...

Claims

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Application Information

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IPC IPC(8): D01F8/14D01D5/08
Inventor 赵茂成张欣
Owner SHANGHAI VITA SCI & TECH
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