Plasma device for pretreatment of cotton woven fabric
A plasma and woven fabric technology, applied in physical treatment, fiber treatment, plant fiber and other directions, can solve problems such as insufficient discharge intensity and production safety accidents, achieve uniform discharge, reduce production safety hazards, and achieve excellent results.
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[0033] Example 1:
[0034] Woven fabric: cotton yarn card, 20 warp yarns, 16 weft yarns; warp density 128 / 10 cm, weft density 60 / 10 cm.
[0035] Plasma treatment parameters:
[0036] The discharge gap is 3mm, the high voltage output is 80,000 volts, the working frequency of the discharge device is 20 kHz, and the plasma treatment time is 20 seconds.
[0037] Woven fabric de-cooking process:
[0038] The dosage of alkali agent (sodium hydroxide) is 35 g / L, which is 30% lower than the conventional dosage; the steaming time is 60 minutes, which is 33% lower than the conventional dosage.
[0039] Results: Capillary effect, 3 cm higher than normal in 30 minutes. The fabric is strong, the warp direction is 58 cN / 10 cm higher than the conventional one, and the weft direction is 30 cN / 10 cm higher than the conventional one. Wastewater chemical oxygen consumption (COD), 22% lower than conventional
Example Embodiment
[0040] Example 2:
[0041] Woven fabric: cotton yarn card, 20 warp yarns, 16 weft yarns; warp density 128 / 10 cm, weft density 60 / 10 cm.
[0042] Plasma treatment parameters: the discharge gap is 3mm, the high voltage output is 100,000 volts, the working frequency of the discharge device is 50 kHz, and the plasma treatment time is 30 seconds.
[0043] Woven fabric de-cooking process: the dosage of alkaline agent (sodium hydroxide) is 25 g / L, which is 50% lower than the conventional dosage; the steaming time is 45 minutes, which is 50% lower than the conventional dosage.
[0044] Results: Capillary effect, consistent with routine within 30 minutes. The fabric is strong, the warp direction is 65 cN / 10 cm higher than the conventional one, and the weft direction is 32 cN / 10 cm higher than the conventional one. The chemical oxygen consumption (COD) of wastewater is reduced by 36% compared with the conventional one.
Example Embodiment
[0045] Example 3:
[0046] Woven fabric: pure cotton fine canvas, warp yarn 32 / 2, weft yarn 16; warp density 96 / 10 cm, weft density 82 / 10 cm.
[0047] Plasma treatment parameters: the discharge gap is 2mm, the high voltage output is 100,000 volts, the working frequency of the discharge device is 50 kHz, and the plasma treatment time is 30 seconds.
[0048] Woven fabric de-cooking process: the dosage of alkali agent (sodium hydroxide) is 30 g / L, which is 50% lower than the conventional dosage. The steaming time is 55 minutes, which is 45% lower than the conventional dosage.
[0049] Result: Capillary effect, 1 cm higher than normal in 30 minutes. The fabric is strong, the warp direction is 45 cN / 10 cm higher than the conventional one, and the weft direction is 12 cN / 10 cm higher than the conventional one. The chemical oxygen consumption (COD) of wastewater is reduced by 38% compared with the conventional one.
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