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Dyeable fiber as well as preparation method and application of dyeable fiber

A fiber and alloy fiber technology, which is applied in the field of dyeable lightweight fiber and its preparation, can solve the problems of non-blending, poor ironing resistance, and decreased fiber strength and elongation, and achieve the effect of good chemical resistance

Inactive Publication Date: 2014-03-26
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The dyeable lightweight fibers prepared by the first, third and fourth methods cannot be mixed with polyester and other polymers because they mostly use low-density polyethylene or polypropylene, which has a low melting point. Blended, and its ironing resistance is poor, so it is limited in the use of clothing materials
The dyeable lightweight fiber prepared by the second method must adopt the method of composite spinning, which limits the production method and cross-sectional shape of the fiber, resulting in certain limitations in its application range. In addition, the cost of composite spinning also higher
The hollow dyeable lightweight fiber prepared by the fifth method, in addition to the decline in the basic physical properties of the fiber such as strength and elongation, the processing method and processing form of the obtained yarn are subject to certain restrictions, and can only be made In addition, the hollow yarn will lose its light weight due to the flattening of the hollow part during false twist processing, which also limits its application range.

Method used

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  • Dyeable fiber as well as preparation method and application of dyeable fiber
  • Dyeable fiber as well as preparation method and application of dyeable fiber

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Dry PMP (Mitsui Chemicals DX820) and nylon 66 separately, and then blend them at 275°C in a weight ratio of 60:40, then add SEBS compatibilizer equivalent to 10wt% of the total amount of fibers and mix them at 280 Melt spinning at ℃, spraying, oiling and drawing through the spinneret, and unstretched filaments are obtained under the condition of spinning speed of 800m / min; after 1.5 times of thermal drawing, the temperature of 1 hot roller is 100℃ 2. The temperature of the hot rollers is 150° C. to obtain finished fibers. The fibers have good fibrillation / spinnability; the obtained fibers are woven into braids and dyed with acid dyes at a dyeing temperature of 120°C for 60 minutes. The dyeability and ironing resistance are excellent.

Embodiment 2

[0044] Dry PMP (Mitsui Chemicals DX820) and ordinary PET, and then blend them at 280°C at a weight ratio of 80:20, then add SEBS compatibilizer equivalent to 5wt% of the total fiber amount and dry at 290°C Under the condition of melt spinning, it is sprayed out through the spinneret, oiled, drawn, and the unstretched filament is obtained under the condition that the spinning speed is 800m / min; then the unstretched filament obtained is stretched by 1.8 times of heat, wherein 1 The temperature of the hot roller is 100°C, and the temperature of the second hot roller is 130°C to obtain the finished fiber. The fibers have good fibrillation / spinnability; the obtained fibers are woven into braids and dyed with disperse dyes at a temperature of 130°C for 60 minutes. The dyeability and ironing resistance are excellent.

Embodiment 3

[0046] PMP (Mitsui Chemicals DX820) and polylactic acid (PLA) slices were dried separately, then blended at 270°C at a weight ratio of 90:10, and melt-spun at 270°C. Plate ejection, oil supply, extraction, and undrawn yarns are obtained under the condition of spinning speed of 800m / min; then the obtained undrawn yarns are subjected to 2.0 times thermal stretching, wherein the temperature of the first heat roller is 90°C, and the temperature of the second heat roller is 90°C. The roller temperature was 130°C, and the finished fiber was obtained. The fibers have good fibrillation / spinnability; the obtained fibers are woven into braids and dyed with disperse dyes at a dyeing temperature of 120°C for 60 minutes. The dyeability and ironing resistance are excellent.

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Abstract

The invention provides a dyeable fiber as well as a preparation method and the application of the dyeable fiber. The fiber is an alloy fiber which at least contains a component A and a component B, wherein the component A is poly-4-methylpentene-1, and the component B is one or more of polyester, modified copolyester, polyamide and polylactic acid. The preparation method of the dyeable fiber comprises the following steps: blending the component A and the component B after the component A and the component B are dried, and performing melt spinning on the blended materials. The obtained dyeable fiber has certain dyeability, and meanwhile, high light weight property is also kept; the dyeable fiber is a dyeable lightweight fully oriented yarn, and can also be a curling dyeable lightweight yarn with elasticity; the dyeable fiber can also be made into braided fabric.

Description

technical field [0001] The present invention relates to a kind of dyeable lightweight fiber and its preparation method and application. Background technique [0002] In recent years, the development of new functional fibers has attracted much attention, especially the olefin fibers headed by polypropylene are considered ideal for making outdoor sportswear due to their excellent functional properties such as light weight, quick drying, warmth retention and natural antibacterial properties. Material. However, the biggest defect of olefin fiber is that it cannot be dyed, which has become the biggest restriction on its application. [0003] Today, there is an endless variety of lightweight dyeable olefin fibers on the market. Considering comprehensively, its production methods mainly include the following: one is to make light-weight dyeable alloy fibers by adding dyeable polymers to low-density polyethylene or polypropylene for blending and spinning; the other is to combine l...

Claims

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Application Information

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IPC IPC(8): D01F8/06D01F8/14D01F8/12
Inventor 陈慧张磊望月克彦
Owner TORAY FIBER RES INST(CHINA) CO LTD
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