Dyeing and finishing process of washing colorfastness for a plurality of times of deep color pure cotton fabric
A technology of pure cotton fabric and multiple washings, applied in the field of textile printing and dyeing production, can solve the problems of poor industrial washing color fastness, unsatisfactory color fastness requirements, large water consumption and power consumption, etc. Full, washable, non-fading, color and light stable, low water consumption
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[0044] The technical solution of the present invention will be described in detail below in conjunction with specific embodiments.
[0045] Fabric: C16X12 108X56 57 / 8″
[0046] Dye prescription: black
[0047] Reactive black W-G 77.6g / L
[0048] Navy GG 2.4g / L
[0049] Mixed alkali agent: 40-42°Be water glass 50ml / L (65g / L)
[0050] Caustic soda (400g / L) 15ml / L
[0051] Process flow:
[0052] (1) Rolling material: Prepare alkali and reactive dyes separately at a temperature of 23°C, and then mix them by a proportional pump at a ratio of 4:1 and inject them into the rolling tank. The temperature of the tank dyeing solution is 25°C. Semi-finished products For rolling, one dip and one rolling method is adopted, and the rolling residual rate is 65%;
[0053] (2) Rolling: After leaving the rolling car, roll it on the glass rod for rolling, change the roll after 40 minutes, and then wrap the plastic film;
[0054] (3) Stacking: rotating speed is 8 rpm, stacking temperature is 29℃, stacking for 12...
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