Dyeing and finishing process for cyclic renewable dacron fabric
A technology of recycled polyester and processing technology, which is applied in the field of textile printing and dyeing, which can solve the problems of high manual dependence on sorting and cleaning, backward and single recycling methods, and little research on printing and dyeing processing, so as to improve hand feel and gloss, better dyeing effect, and improve color The effect of the darkening effect
Pending Publication Date: 2020-08-28
SHENGHONG GRP CO LTD
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Problems solved by technology
[0005] At present, domestic recycled polyester is facing many problems in the upstream links of textiles, such as the prohibition of waste clothing from entering the market, backward single recycling methods, high dependence on manual sorting and cleaning, high cost of impurity removal and thickening, so its downstream printing and dyeing processing research is also relatively difficult. few
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0028] Recycled polyester fabric: 100% recycled polyester, width: 152cm, warp and weft density: 81 threads / cm*35 threads / cm, 75D / 48F FDY*75D / 48F FDY, meter weight: 120g / m.
[0029] The dyeing and finishing process of the above-mentioned recycled renewable polyester fabric includes the alkali weight reduction process, dyeing process and post-dyeing finishing process carried out in sequence;
[0030] Alkali weight reduction process: Alkali weight reduction treatment is carried out on recycled polyester fabrics with alkali weight reduction additives; alkali weight reduction additives include liquid caustic soda 50g / L, long car fast desizing agent TF-127B 2g / L, alkali weight reduction treatment The temperature is 95°C and the treatment time is 30min.
[0031] Dyeing process: the dyeing agent used in the dyeing process is composed of dyeing auxiliaries and dyes, among which, the dyes are disperse dyes; the disperse dyes include disperse ruby S-5BL 1.5% owf, disperse orange S-4RL0...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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The invention discloses a dyeing and finishing process for cyclic renewable dacron fabric. The dyeing and finishing process comprises an alkali peeling, a dyeing process and a finishing process afterdyeing which are conducted in sequence, wherein in the alkali peeling process, an alkali peeling assistant is used to conduct alkali peeling on the renewable dacron fabric; a dyeing agent used in thedyeing process is composed of a dyeing assistant and a dye, the dye is a disperse dye, the dyeing temperature is increased to 120-130 DEG C, and the dyeing time is 55-60min; in the finishing process after dyeing, a dyeing finishing agent is used for soaking the renewable dacron fabric, wherein the dyeing finishing agent comprises 15-25 g / L of low-reflectivity resin emulsion finishing agent, 0-10 g / L of 2D resin, 1-2 g / L of a penetrant, and 0-5 g / L of magnesium chloride hexahydrate. According to the dyeing and finishing process, a proper treatment process before dyeing, a proper drying processand a proper finishing process after dyeing are customized according to the properties of the fabric, so that the dyeing depth, the colour fastness and the dye color-increasing effects are improved, and it is guaranteed that the fabric has high tear strength and breaking strength.
Description
technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a dyeing and finishing process of recycled and renewable polyester fabrics. Background technique [0002] According to the statistics of China Chemical Fiber Industry Association, the output of polyester filament and staple fiber in my country in 2018 was 40.1487 million tons, accounting for about 80.11% of all chemical fibers. Due to its good physical and chemical properties such as high strength, high rigidity, heat resistance and chemical resistance, polyester fiber is widely used in clothing, shoes and hats, medical treatment, construction, national defense and other fields. [0003] However, the environmental pollution problems caused by polyester waste and waste clothes have also become more and more serious. The amount of waste textiles in my country exceeds 20 million tons every year, but the recovery rate is less than 10%, and the stock o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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IPC IPC(8): D06P1/16D06P1/00D06P3/54D06P5/08D06P5/10D06M11/38D06M101/32
CPCD06P1/16D06P1/0032D06P3/54D06P5/08D06P5/10D06M11/38D06M2101/32D06M2200/50
Inventor 钱琴芳张建国赵学谦沈俊
Owner SHENGHONG GRP CO LTD