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Scouring and bleaching method of hemp fabric

A fabric and hemp technology, which is applied in the field of scouring and bleaching of hemp fabrics, can solve the problems of reduced strength of fiber products, damage of hemp fibers, and increased hairiness of fabrics, and achieve the effects of improved hydrophilicity, less damage to strength, and better treatment effects

Inactive Publication Date: 2014-06-25
吴江市桃源海润印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the high-temperature alkaline method has a high efficiency of removing impurities, it is easy to cause damage to the hemp fiber if it is not properly controlled. If the hemp bundle fiber is fully dissociated into a single fiber state during the treatment, not only the hairiness on the fabric will increase, but the strength of the fiber product will also be greatly reduced. decline

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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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0020] Adopt alkaline cold pad-batch treatment, combine the biological treatment such as pectinase and ligninase and oxidative bleaching, the concrete embodiment that realizes the pretreatment of hemp fiber product dyeing and finishing is as follows:

Embodiment 1

[0021] Implementation 1: The sample selected for this implementation is hemp fabric plain cloth.

[0022] Sample 1: The traditional alkali-oxygen one-step method is adopted. Treatment process prescription and conditions: NaOH20g / L, H 2 o 2 (30%) 5g / L, penetrant Tx-101g / L, oxygen bleaching stabilizer 0.5g / L, treatment temperature 95°C, treatment time 1.5h. After treatment, wash thoroughly with 90°C hot water twice.

[0023] Sample 2: The process mentioned in the present invention is adopted. Treatment process prescription and conditions are as follows:

[0024] (1) Cold pad-batch treatment: NaOH 10g / L, penetrant Tx-101g / L, liquid carrying rate 90%, stacking temperature 20°C, stacking time 24h; Wash 2 times.

[0025] (2) Refining enzyme pretreatment: pectinase 0.5g / L, ligninase 1.0g / L, cellulase 0.5g / L, temperature 50°C, treatment time 60min, liquor ratio 1:20; Fully wash once with hot water at 80°C.

[0026] (3) Oxidative bleaching: NaOH4g / L, H 2 o 2 (30%) 5g / L, oxyge...

Embodiment 2

[0029] Implementation 2: The sample selected for this implementation is hemp / organic cotton (50 / 55) plain cloth.

[0030] Sample 3: Alkaline scouring process is adopted. Treatment process prescription and conditions: NaOH 15g / L, penetrant Tx-100.5g / L, treatment temperature 98°C, treatment time 1h; after treatment, fully wash with 90°C hot water twice.

[0031] Sample 4: The process mentioned in the present invention is adopted. Treatment process prescription and conditions are as follows:

[0032] (1) Cold pad-batch treatment: NaOH 20g / L, penetrant Tx-10 0.5g / L, liquid carrying rate 80%, stacking temperature 20°C, stacking time 12h. After stacking for the specified time, fully wash it twice with 90°C hot water.

[0033] (2) Refining enzyme pre-treatment; pectinase 1g / L, ligninase 1g / L, treatment temperature 50°C, treatment time 60min, bath ratio 1:20; after enzyme treatment, fully wash once with 80°C hot water .

[0034] After the above process, the wetting time of sample...

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 relates to a scouring and bleaching processing method of hemp fabric, aiming at improving the whiteness and the hygroscopic property, meeting the requirements on subsequent dyeing and finishing and alleviating the damage to hemp fiber. The pretreatment of a hemp fiber product comprises the steps of firstly, treating the hemp fabric by a rolling base stacking method to enable the impurities on the fiber to be fully swelled; washing by hot water, and then treating the product by a biological method through pectinase, ligninase, cellulose and the like; combining oxidation bleaching and deoxidizing by an enzymic method. The method comprises the steps of carrying out pad-roll caustic soda stacking treatment on the hemp fabric; carrying out biological enzyme (pectinase, ligninase and cellulose) treatment on the hemp fabric; bleaching the hemp fabric by hydrogen peroxide; deoxidizing the hemp fabric by catalase. Compared with the traditional high-temperature alkaline pretreatment, the scouring and bleaching method has the advantages that the production energy consumption is reduced, and the environmental pollution is alleviated.

Description

technical field [0001] The invention relates to a method for scouring and bleaching of hemp fabrics. In particular, caustic soda is used for cold pad-batch treatment of hemp fabrics, then biological treatment is carried out by means of pectinase and ligninase, and finally oxidative bleaching is carried out to realize the bleaching of hemp fabrics. The invention discloses a bleaching processing method, which belongs to the field of textile chemistry and biotechnology. Background technique [0002] Hemp fiber belongs to natural cellulose fiber, which has excellent properties such as fine fiber fineness, moisture absorption, breathability, antibacterial and mildew resistance. Hemp fiber can be blended or interwoven with cotton, wool and chemical fiber. The resulting fabric is thin in texture, crisp in appearance, delicate in hand, durable, and is favored by domestic and foreign consumers. [0003] In addition to the main cellulose component in the hemp fiber structure, the imp...

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): D06M11/38D06M16/00D06L3/02D06M101/06D06L4/12D06L4/13
Inventor 顾志锋王平乔辉董治昌沈震洪
Owner 吴江市桃源海润印染有限公司
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