Pure-cotton hard-twist color yarn production method
A production method and technology of dyed yarn, applied in yarn, liquid/gas/steam yarn/filament treatment, heating/cooling fabric, etc., can solve problems such as large internal and external differences of bobbins, many quality problems, and difficult penetration of dyes, etc. Achieve the effects of reducing the color difference inside and outside of dyeing, improving air permeability and cool feeling, and increasing the ultimate twist
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Embodiment 1
[0008] Embodiment 1: select 20.8 kilograms of twists to be 50 single yarns of 25 twists / inch for use, twist to twist after dyeing and be 53 twists / inches
[0009] ① Dyeing process: Select 20.8 kg of 50 single yarns with a twist of 25 twists / inch, wind the loose yarn on the SSM loose winder, and the density is 0.38g / cm 3 , and then dye the normal package with reactive dyes until drying.
[0010] ② Yarn rewinding process: Rewind the loose dyed yarn on the Murata doubling machine into the bobbin required for twisting, adjust the tension to the minimum, and the speed is 500 m / min.
[0011] ③ Twisting process: The bobbin is twisted on the Murata twisting machine using the "ZZ" twisting process, adding 28 twists / inch. The speed of the twisting machine is 6500 rpm, and the efficiency is 98%.
[0012] ④ Shaping process: steam the twisted dyed yarn on a high-temperature steaming machine at 90°C for 30 minutes. The final dyed yarn twist is 52.8 twists / inch, and the color is grade 4 wi...
Embodiment 2
[0013] Embodiment 2: select 79.77 kilograms of twists to be 60 single yarns of 25 twists / inch for use, twist to twist after dyeing and be 58 twists / inches
[0014] ① Dyeing process: Select 60 single yarns with 79.77 kg of twist and 25 twists / inch, wind loose yarn on SSM loose winder, and the density is 0.381g / cm 3 , Dyeing of normal bobbins with reactive dyes until drying.
[0015] ② Yarn rewinding process: Rewind the loose dyed yarn on the Murata doubling machine into the bobbin required for twisting, adjust the tension to the minimum, and the speed is 500 m / min.
[0016] ③ Twisting process: The bobbin is twisted on the Murata twisting machine using the "ZZ" twisting process, adding 32 twists / inch. The speed of the twisting machine is 6800 rpm, and the efficiency is 98%.
[0017] ④ Shaping process: steam the twisted dyed yarn on a high-temperature steaming machine at 90°C for 30 minutes. The final dyed yarn twist is 57.6 twists / inch, and the color is in the standard 4 / 5 gra...
Embodiment 3
[0018] Embodiment 3: select 52.5 kilograms of twists to be 70 single yarns of 31 twists / inch for use, twist to twist after dyeing and be 68 twists / inches.
[0019] ① Dyeing process: Select 52.5 kg of 70 single yarns with a twist of 31 twist / inch, wind the loose yarn on the SSM loose winder with a density of 0.37g / cm3, and dye the normal bobbin yarn with reactive dyes until drying.
[0020] ② Yarn rewinding process: Rewind the loose dyed yarn on the Murata doubling machine into the bobbin required for twisting, adjust the tension to the minimum, and the speed is 500 m / min.
[0021] ③ Twisting process: The bobbin is twisted on the Murata twisting machine using the "ZZ" twisting process, adding 37 twists / inch. The speed of the twisting machine is 6650 rpm, and the efficiency is 98%.
[0022] ④Sizing process: Steam the twisted dyed yarn on a high-temperature steaming machine at 90°C*30’. The final dyed yarn twist is 68 twists / inch, and the color is grade 4 with the standard.
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