Compound enzyme preparation for textile fabrics and applications thereof

A composite enzyme preparation and textile technology, which is applied in the field of high-efficiency composite enzyme preparations, can solve the problems of inability to adapt to the development trend of green textiles, the influence of fabric color and luster, high water consumption and energy consumption, etc., and achieve product quality improvement, softness and drape. Good temperature and water saving effect

Active Publication Date: 2010-05-26
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this process, it must be carefully controlled, otherwise the cotton fiber will form oxidized cellulose and be damaged; on the other hand, the surface of the cotton fiber loses its proper feel due to the removal of a large amount of wax that acts as a lubricant
In addition, the method of alkali scouring also has problems such as high water consumption and energy consumption, a large amount of wastewater with strong alkalinity, deep color, and high COD, and the salt formed by neutralizing alkali will affect the color of the fabric. The technology can no longer adapt to the development trend of green textiles in the world

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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  • Compound enzyme preparation for textile fabrics and applications thereof
  • Compound enzyme preparation for textile fabrics and applications thereof
  • Compound enzyme preparation for textile fabrics and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Using Paenibacillus pabuli WZ008 as the starting strain, the strain was screened by the inventors from rotten apple skins and has been preserved in the China Center for Type Culture Collection with the preservation number CCTCC No: M 207183 .

[0037] Alkaline pectinase and cellulase were produced by liquid submerged fermentation. The final concentration of the fermentation medium is composed of: pectin 6g / L, bran 4g / L, yeast extract 5g / L, peptone 1.5g / L, CaCO 3 5g / L, (NH 4 ) 2 SO 4 20g / L, NaCl 0.3g / L, KH 2 PO 4 0.5g / L, K 2 HPO 4 2g / L, MgSO 4 ·7H 2 O 2g / L, FeSO 4 0.01g / L, pH 8.5~9.0, solvent is water.

[0038] The fermentation conditions are: in a 15L self-controlled mechanical agitation fermenter, transfer the prepared seed solution into a 9L fermentation medium with an inoculation amount of 10% (v / v), so that the liquid filling volume is 10L, and the tank pressure is controlled to 0.03Mpa , the air pressure is 0.12Mpa, the air flow rate is 25NL / min, th...

Embodiment 2

[0040] Cotton cloth was treated with alkali scouring process and enzyme scouring process respectively.

[0041] Alkali scouring process: boiling water pretreatment for 30 minutes→alkali scouring→hot water washing→cold water washing→drying (105°C, 1h).

[0042] Wherein the alkali refining treatment conditions: NaOH 40% (o.w.f, NaOH mass accounts for fabric mass percentage), soap 2g / L, temperature 100 ℃, bath ratio 1: 15 (cotton cloth and treatment liquid mass ratio), treatment time 150min.

[0043] Enzyme scouring process: boiling water pretreatment for 30 minutes→enzyme scouring→hot water washing→cold water washing→drying (105°C, 1h).

[0044] Among them, enzyme refining treatment conditions: compound enzyme 100-250U / g fabric (calculated as alkaline pectinase), temperature 55°C, pH 9.6, bath ratio 1:15 (mass ratio of cotton cloth to treatment solution), treatment time 150min.

[0045] Compound enzyme preparation method: dissolve the spray-dried biological enzyme solid powder in...

Embodiment 3

[0050] Cotton cloth was treated with alkali scouring process and enzyme scouring process respectively.

[0051] Alkali scouring process: boiling water pretreatment for 30 minutes→alkali scouring→hot water washing→cold water washing→drying (105°C, 1h).

[0052] The alkali refining treatment conditions: NaOH 40% (o.w.f), soap 2g / L, temperature 100°C, bath ratio 1:15, treatment time 150min.

[0053] Enzyme scouring process: boiling water pretreatment for 30 minutes→enzyme scouring→hot water washing→cold water washing→drying (105°C, 1h).

[0054] Wherein the enzyme refining treatment conditions: compound enzyme 100-250U / g fabric (calculated by alkaline pectinase), temperature 55°C, pH 9.6, bath ratio 1:15, treatment time 150min.

[0055] Compound enzyme preparation method: dissolve the spray-dried biological enzyme solid powder in the following system: polysiloxane 100g / L, fatty alcohol polyoxyethylene ether 80g / L, Tween-80 120g / L, Span-20 120g / L, sorbitol 50g / L, calcium chlori...

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 provides a high-efficiency compound enzyme preparation used for a pretreatment process of textile fabrics, particularly cotton fabrics, and application thereof. The compound enzyme preparation mainly comprises the following components by final concentration: 50 to 100g/L of polysiloxane, 50 to 100g/L of fatty alcohol-polyoxyethylene ether, 80 to 150g/L of Tween 20 to 80 series, 80 to 150g/L of Span 20 to 80 series, 30 to 80g/L of sorbitol, 3 to 10g/L of calcium chloride, 5 to 15g/L of sodium benzoate, 800 to 1,000U/mL of alkaline pectinase, 1,000 to 1,200U/nL of cellulase, and water serving as a solvent. The compound enzyme preparation is applied to the pretreatment of the textile fabrics to replace the conventional alkali boiling off process, can effectively reduce production cost, reduce labor intensity and enable the quality of the product to be obviously improved, can also reduce the salt content and BOD, COD and the like in the water discharged into the environment and obviously reduce the pollution to the environment, and is a green process route which accords with the sustainable development.

Description

(1) Technical field [0001] The invention relates to a high-efficiency composite enzyme preparation which can be used for textile pretreatment and its application. (2) Background technology [0002] In the traditional cotton fabric pretreatment process, the caustic soda high-temperature scouring method is generally used, and the strong alkali solution of sodium hydroxide is used to treat the desized cotton fabric at high temperature, sometimes even exceeding the boiling point of water, to remove Surface non-cellulose components. In this process, it must be carefully controlled, otherwise the cotton fiber will form oxidized cellulose and be damaged; on the other hand, the surface of the cotton fiber loses its due feel due to the removal of a large amount of wax that acts as a lubricant. In addition, the method of alkali scouring also has problems such as large water consumption and energy consumption, a large amount of wastewater with strong alkalinity, deep color, and high C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M16/00C12S11/00C12N1/20C12N9/26C12N9/42D06M15/643D06M15/53D06M13/224D06M13/148D06M11/155D06M13/188D06M101/06C12R1/01
Inventor 汪钊沈雪亮魏春章银军应向贤鄢洪德
Owner ZHEJIANG UNIV OF TECH
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