Dyeing process of polyphenylene sulfide fiber

A polyphenylene sulfide fiber and process technology, applied in the direction of dyeing, liquid/gas/steam fiber/sliver/roving treatment, textiles and papermaking, etc., can solve the problem of reducing polyphenylene sulfide fiber, reducing color brightness, Affect fiber and other problems, to achieve the effect of improved washability, good vividness, and fast color fixation

Active Publication Date: 2010-09-08
德阳科吉高新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to study the dyeing process of polyphenylene sulfide fiber, to solve the problems that polyphenylene sulfide fiber will appear due to high-temperature radiation and strong sunlight, such as: the brightness of its color is reduced, or excessive use of strong oxidants will affect the quality of the fiber. various properties, and the materials used in the polyphenylene

Method used

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  • Dyeing process of polyphenylene sulfide fiber
  • Dyeing process of polyphenylene sulfide fiber
  • Dyeing process of polyphenylene sulfide fiber

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0030] Example 1:

[0031] (1) Obtaining of the resin of polyphenylene sulfide resin:

[0032] The polyphenylene sulfide resin obtained above was prepared into a mixed solid-solution system with a content of 20-30% polyphenylene sulfide resin with N-methylpyrrolidone pure solution, and the temperature was raised to 200 ° C, after 60min of insulation, filtered while hot, Then, the solvent, N-methylpyrrolidone, was extracted with methanol for 6 times, and finally washed with oxygen-free deionized water for 9 times to obtain a polyphenylene sulfide resin that can be spun.

[0033] (2) Melt spinning and fiber thermal drawing of polyphenylene sulfide resin

[0034] The polyphenylene sulfide resin obtained in (1) is extruded and diced into polyphenylene sulfide chips through an extruder, and then the chips are dried in a vacuum environment of 160 ° C for 6 hours, and then enter the polyphenylene sulfide resin. In the spinning process, the long fibers or monofilaments spun out are ...

Example Embodiment

[0038] Example 2:

[0039] Others are the same as in Example 1.

[0040] The obtained polyphenylene sulfide long fibers or monofilament fibers were soaked in 5% calcium hypochlorite and 30% dextrin aqueous solution for 7 minutes, and the treatment temperature was 53 ° C, and then soaked in 7% reactive brilliant red K-3B alcohol aqueous solution for 25 minutes. , under the condition of the temperature of 37 ℃ and the normal pressure, the dyeing product of polyphenylene sulfide fiber is obtained by drying with 0.43m / s hot air for 33min. Its fiber characteristics after dyeing figure 2 manifested in. .

Example Embodiment

[0041] Example 3:

[0042] Others are the same as in Example 1.

[0043] The obtained polyphenylene sulfide long fibers or monofilament fibers were soaked in 5% sodium hypochlorite and 22% dextrin solution for 12 minutes, and the treatment temperature was 51°C, and then soaked in 6% reactive brilliant blue X-BR alcohol solution for 45 minutes After that, under the condition of a temperature of 42° C. and a normal pressure, the polyphenylene sulfide fiber dyed product is obtained by drying with a hot air of 0.41 m / s for 31 min. Its fiber characteristics after dyeing figure 2 The towel shows.

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Abstract

The invention discloses a dyeing process of polyphenylene sulfide fiber, which comprises the following steps: adopting sodium sulfide and p-dichlorobenzene as raw materials, taking sulfolane as a solvent system for obtaining the polyphenylene sulfide fiber, soaking in 3%-5% hypochlorite dextrin solution for 5-15min, soaking in alcohol water solution containing 5-8% reactive dyes for 15-60min after pretreatment at the temperature of 50-53 DEG C, further carrying out drying treatment with hot air for obtaining a polyphenylene sulfide fiber dyed product. The process method carries out dyeing on the polyphenylene sulfide fiber, thereby not only realizing bright colors, but also realizing high color fastness, poor color fadeness and resistance to ultraviolet radiation; furthermore, the polyphenylene sulfide fiber with the various bright colors can be dyed at one time. The dyeing process is applicable to producing non-woven fabric, civil fabric, special fabric for military industry and the like.

Description

Technical field [0001] The invention belongs to the processing field of special fibers. Background technique [0002] High-performance polyphenylene sulfide fiber has excellent chemical resistance and thermal stability at high temperature, and has flame retardancy, insulation, radiation resistance and good mechanical properties, and extremely low water absorption. In order to expand the scope of use of this material, researchers from various countries have been looking for new ways to dye its fibers. [0003] PPS fiber has good chemical stability, it can still maintain its original performance under extremely harsh conditions, and has outstanding chemical stability, second only to polytetrafluoroethylene fiber. At high temperature, it can maintain the original tensile strength after being placed in different inorganic reagents for a week. It also has good resistance to organic solvents. Except that toluene at 93°C has a slight influence on its strength, in organic solvents...

Claims

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Application Information

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IPC IPC(8): D06P1/38D06P1/46D06P1/673D06P3/00D06P5/02C08G75/02D06B3/02C08G75/0254
Inventor 陈逊
Owner 德阳科吉高新材料有限责任公司
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