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Method for dyeing polyphenylene sulfide fiber or fabric

A technology of polyphenylene sulfide fiber and dyeing method, applied in the direction of dyeing method, fiber treatment, fiber type, etc., can solve the problem of difficult dyeing of polyphenylene sulfide fiber, no polyphenylene sulfide fiber, high glass transition temperature, etc. problems, to achieve the effect of low dyeing cost, easy operation and high color fastness

Inactive Publication Date: 2011-09-28
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since polyphenylene sulfide fibers are hydrophobic and have high crystallinity, the glass transition temperature is also high (106-112°C) (Zhang Ming. Structure and thermal properties of PPS fibers "J" Shandong Textile Science and Technology, 2008, 4, 48~50), so general water-soluble dyes cannot dye polyphenylene sulfide fibers, even disperse dyes are difficult to dye polyphenylene sulfide fibers under high temperature and pressure, and there is no polyphenylene sulfide yet Special dyes for fiber dyeing, which limits the application of polyphenylene sulfide as civil textiles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Immerse the polyphenylene sulfide fabric in the pretreatment solution prepared by 6.00g / L urea and 3ml / L hydrogen peroxide, then raise the temperature to boiling, and after boiling for 40min, wash it twice with hot water at 80°C and twice with cold water. times, and then placed in a 90 ° C oven for 20 minutes to dry.

[0025] Put 2 g of polyphenylene sulfide fabric in a bath ratio of 1:20, and put it in a dyeing cup filled with a dye solution in a high-temperature and high-pressure dyeing machine at room temperature. The dye solution contains 2% by weight of the polyphenylene sulfide fabric. Disperse red dye, 2g / L benzyl benzoate, 0.5g / L sodium dihydrogen phosphate, 1g / L glycerol polyoxyethylene ether oleate and 3g / L lauryl polyoxyethylene ether sulfate, 0.5g / L sodium ethylenediamine tetraacetate, the rest is tap water, then raise the temperature at 2°C / min to 110°C, keep it warm for 30min, and then immerse it in a solution composed of 2g / L sodium hydroxide and 2g / L sod...

Embodiment 2

[0027] Immerse the polyphenylene sulfide fabric in the pretreatment solution prepared by 8.50g / L urea and 4ml / L hydrogen peroxide, then raise the temperature to boiling, and after boiling for 30min, wash it twice with hot water at 75°C and twice with cold water. times, and then dried in an oven at 85°C for 20 minutes.

[0028]Put 3 g of polyphenylene sulfide fabric in a bath ratio of 1:30, and put it in a dyeing cup filled with a dye solution in a high-temperature and high-pressure dyeing machine at room temperature. The dye solution contains 1% by weight of the polyphenylene sulfide fabric. Disperse red dye and 2% disperse blue dye, 1.5g / LN-isopropylphthalimide, 3g / LN-n-butylphthalimide, 2g / L acetic acid, 5g / L Sodium methyl dinaphthalene sulfonate, 0.5g / L maleic acid-acrylic acid copolymer, the rest is deionized water, then the temperature is raised to 140°C at 0.5°C / min, kept for 40min, and then immersed in 2g / L hydrogen In a solution composed of sodium oxide and 2g / L hydro...

Embodiment 3

[0030] Immerse the polyphenylene sulfide fabric in the pretreatment solution prepared by 11.25g / L urea and 6ml / L hydrogen peroxide, then raise the temperature to boiling, and after boiling for 20min, wash it twice with hot water at 85°C and twice with cold water. times, and then placed in a 90 ° C oven for 20 minutes to dry.

[0031] Put 5 g of polyphenylene sulfide fabric in a bath ratio of 1:40, put it in a dyeing cup filled with a dye solution in a high-temperature and high-pressure dyeing machine at room temperature, and the dye solution contains 5% by weight of the polyphenylene sulfide fabric. Disperse yellow dye, 3.5g / L benzyl benzoate and 3.5g / L ethylene glycol benzoate, 1.5g / L ammonium dihydrogen phosphate, 3g / L tristyrylphenol polyoxyethylene ammonium sulfonate, 1.0g / L sodium tripolyphosphate, the rest is distilled water, then raise the temperature to 100°C at 5°C / min, keep it warm for 60min, and then immerse it in a solution composed of 2g / L sodium hydroxide and 2g / ...

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Abstract

The invention discloses a method for dyeing polyphenylene sulfide fiber or fabric. The method comprises the following steps: treating the polyphenylene sulfide fiber or fabric, soaking the polyphenylene sulfide fiber or fabric into a high-temperature high-pressure dyeing machine filled with dyeing solution in a bath ratio of 1: 10-50, heating the polyphenylene sulfide fiber or fabric to between 100 and 140 DEG C at a heating sped of 0.5 to 5 DEG C per minute, preserving the heat and dyeing the polyphenylene sulfide fiber or fabric for 10 to 60 minutes, and performing reductive cleaning, water washing and drying on the polyphenylene sulfide fiber or fabric. Based on the weight of the polyphenylene sulfide fiber or fabric, the dyeing solution comprises 0.5 to 5 percent of disperse dye, 1 to8g / L of dyeing carrier, 0 to 2g / L of pH adjustor, 0 to 5g / L of leveling agent, 0 to 1g / L of chelated dispersing agent and diluent. The method can successfully dye the polyphenylene sulfide fiber or fabric, has the advantages of high dyeing rate, deep and thick dyed color, good color fastness, soft hand feeling, low dyeing cost and simple and feasible use and operation, can be expanded in application of civilian textiles, and is convenient for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of dyeing methods for polymer fibers or fabrics, in particular to a high-temperature and high-pressure dyeing method for polyphenylene sulfide fibers or fabrics. Background technique [0002] Polyphenylene sulfide (PPS) is a kind of linear macromolecule, which is a kind of linear macromolecule with a benzene ring connected to a sulfur atom at the para position to form a macromolecular main chain. It is semi-crystalline, and the crystallinity of its fibers is generally 50-65%. Due to the high crystallinity of polyphenylene sulfide fiber, it not only has good mechanical properties, but also has stable dimensions and small deformation during use, which can fully meet the requirements of industrial and clothing textiles. Not only that, the stability of chemical resistance of polyphenylene sulfide fiber is second only to polytetrafluoroethylene fiber, acid and alkali resistance is better than that of aromatic pol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/16D06P3/00D06P1/651D06P1/642D06M13/432D06M11/50D06M101/30
Inventor 郑庆康刘庆姝杜高敏罗灯洪
Owner SICHUAN UNIV
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