Dyeing process for FDY bright fiber yarn
A filament and bright technology, applied in dyeing method, liquid/gas/vapor yarn/filament treatment, liquid/gas/vapor removal, etc., can solve the problem of large web loss, high cost, and unstable FDY filament quality and other problems, to achieve the effect of improving the color fastness and dyeing evenly and firmly
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[0037] Example 1
[0038] A dyeing process of FDY bright fiber yarn, including the following steps:
[0039] S1, double twist
[0040] Two-for-one twisting is performed on FDY bright fiber yarn by a two-for-one twister. The spindle speed of the two-for-one twister is 5000 rpm, the winding speed is 100 m / min, the overfeeding speed is 116 m / min, and the yarn twist is 100 twists.
[0041] S2, stereotype
[0042] Put the two-for-one twisted FDY bright fiber yarn into a setting machine for setting, the setting temperature is 80℃, and the setting time is 12 hours.
[0043] S3, pine cone
[0044] The finished FDY bright fiber yarn is loosened through a loose winder.
[0045] See attached figure 1 , The outer diameter d1 of the 500gFDY bright fiber yarn after loosening the tube is 180mm (the outer diameter d2 of the core is 63mm), the two ends of the wound yarn and the core form an oblique cone surface, the slope of the oblique cone surface is H / L= 55 / 58.5=1:1.06.
[0046] S4, degreasing
[0047] ...
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