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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.

Active Publication Date: 2012-06-20
CHINA TEXTILE ACAD JIANGNAN BRANCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no atmospheric pressure low-temperature plasma device that can be used for pretreatment, desizing and scouring of textile fabrics in the market. In the reported research, such as Chinese Patent No. CN2895498Y, there is also insufficient discharge intensity, and the gray fabrics in the actual production of the factory are not considered. Too much fluff and impurities can easily lead to production safety accidents

Method used

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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  • Plasma device for pretreatment of cotton woven fabric
  • Plasma device for pretreatment of cotton woven fabric
  • Plasma device for pretreatment of cotton woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Woven fabric: cotton gauze, 20 warp yarns, 16 weft yarns; warp density 128 yarns / 10cm, weft density 60 yarns / 10cm.

[0035] Plasma treatment parameters:

[0036] The discharge gap is 3 mm, the high voltage output is 80,000 volts, the operating frequency of the discharge device is 20 kHz, and the plasma processing time is 20 seconds.

[0037] Woven fabric deboiling 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] Result: capillary effect, 3 cm higher than normal in 30 minutes. The strength of the fabric is 58cm / 10cm higher in the warp direction and 30cm / 10cm higher in the weft direction. Wastewater chemical oxygen demand (COD), 22% lower than conventional

Embodiment 2

[0041] Woven fabric: cotton gauze, 20 warp yarns, 16 weft yarns; warp density 128 yarns / 10cm, weft density 60 yarns / 10cm.

[0042] Plasma treatment parameters: discharge gap 3 mm, high voltage output 100,000 volts, discharge device operating frequency 50 kHz, plasma treatment time 30 seconds.

[0043] Woven fabric deboiling process: the dosage of alkali 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] Result: capillary effect, consistent with routine within 30 minutes. The strength of the fabric is 65cm / 10cm higher in the warp direction and 32cm / 10cm higher in the weft direction. The chemical oxygen demand (COD) of wastewater is 36% lower than the conventional one.

Embodiment 3

[0046] Woven fabric: cotton fine canvas, warp yarn 32 / 2, weft 16; warp density 96 / 10cm, weft density 82 / 10cm.

[0047] Plasma treatment parameters: discharge gap 2 mm, high voltage output 100,000 volts, discharge device operating frequency 50 kHz, plasma treatment time 30 seconds.

[0048] Woven fabric deboiling process: the amount of alkali agent (sodium hydroxide) is 30 g / L, which is 50% lower than the conventional amount. 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 strength of the fabric is 45cm / 10cm higher in the warp direction and 12cm / 10cm higher in the weft direction. The chemical oxygen demand (COD) of wastewater is reduced by 38% compared with the conventional one.

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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Abstract

The invention discloses a plasma device for pretreatment of cotton woven fabric, belonging to the technical field of plasma equipment. The plasma device is characterized by comprising a cloth feeding device, a brush cleaning device, a plasma generating device and a cloth falling device which are sequentially arranged, wherein the cloth feeding device comprises an automatic tension adjusting device and an infrared cloth expanding centering device which are sequentially installed in a cloth feeding direction; the brush cleaning device adopts a brushing roller which comprises a rolling shaft, a hair brush and a dentiform carding baffle plate; and the plasma generating device is installed in a second tank body, and comprises a plurality of groups of plasma discharge rollers, and the earthing roller of each plasma discharge roller adopts a spring to control the position moving. The plasma device disclosed by the invention has the advantages of being high in efficiency, energy-saving, environmentally friendly and safe.

Description

Technical field: [0001] The invention relates to a plasma device for pre-treatment of cotton woven fabrics, in particular to a device for treating PVA slurry of cotton woven fabrics with normal-pressure low-temperature plasma to facilitate subsequent energy-saving and environment-friendly desizing. Background technique: [0002] The application of plasma technology in the textile field is a new technology that people have paid close attention to in recent years. Experiments have proved that after plasma treatment, it has achieved good results in replacing the traditional desizing and scouring process, improving color fastness and changing the hand feeling. Experimental results. In the past, people used vacuum plasma to discharge various textile fabrics. However, due to the design limitations of vacuum plasma itself, such as Chinese Patent No. CN201202022Y, continuous production cannot be achieved, and the operating cost of the device is also high. If the atmospheric pressur...

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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Application Information

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IPC IPC(8): D06M10/00D06M101/06
Inventor 崔桂新张孝南方虹天
Owner CHINA TEXTILE ACAD JIANGNAN BRANCH
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