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 to 8g/L of dyeing carrier, 0 to 2g/L of pH adjustor, 0 to 5g/L of levelling 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 handfeel, 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.

Method for dyeing polyphenylene sulfide fiber or fabric

PURPOSE:To obtain a deep-colored dyed product excellent in fastness without decline in its physical properties by dyeing hard-to-dye high-performance synthetic fibers using a specific dye at a high temperatures. CONSTITUTION:High-performance fibers such as aramid fibers or wholly aromatic polyester fibers are dyed at >=150 deg.C using a dye <=400 in molecular weight having such thermal stability as to be <20% in the rate of change in the transmission spectrum after hot water treatment at 150 deg.C. Thus, the objective dyed product of deep color with high fastness can be obtained from such high- performance fibers having been hard to dye, without any decline in the physical properties of the original fibers.

Method for dyeing high-performance synthetic fiber

The present invention relates to a dyeable polyphenylene sulfide fiber, which is mixed-woven using 1-10 wt% of a dyeable polyphenylene sulfide resin and 90-99 wt% of a non-dyeable polyphenylene sulfide resin.

Polyphenylene sulfide fiber having excellent dyeability and light fastness and Fiber Assembly Using This

Disclosed is a PPS member having an excellent fastness to lights such as ultraviolet light, and of which color does not change even when the member is used outdoors, while retaining the characteristics of PPS. The polyphenylene sulfide member according to the present invention is characterized by having a light-fastness rating of Class 1 or higher, against light from an ultraviolet carbon arc lamp, which rating is measured in accordance with JIS L-0842.

Polyphenylene sulfide member and method for producing the same

PURPOSE:To enable the subject excellent dyeing excellent in washfastness without damage to its high functions by dyeing a high functional fiber excellent in heat resistance, chemical resistance, etc., at temperatures beyond the crystallization point in temperature-rise condition using the thermosol process. CONSTITUTION:A high functional fiber difficult to be dyed, selected from polyphenylene sulfide fiber and polyether ether ketone fiber excellent in heat resistance and chemical resistance is dyed at temperatures (e.g. 160-260 deg.C and 180-316 deg.C) beyond the crystallization point in temperature-rise condition by the thermosol process using a disperse dye to obtain the objective excellently dyed fiber excellent in wash-fastness without damage to mechanical properties, heat resistance and chemical resistance thereof.

Kanetsuna Hisaaki

Papers

Dyeing of high functional fiber