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One-bath scouring and bleaching method for cotton fabric combined with enzyme preparation

A technology of compounding enzymes and cotton fabrics, which is applied in the fields of enzyme/microbial biochemical treatment, bleaching products, textiles and papermaking, etc. It can solve the problems of shortening the treatment process, fabric damage, high pollution, etc., to improve the removal effect and reduce the pressure , Environmentally friendly effect

Inactive Publication Date: 2008-10-01
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for scouring and bleaching cotton fabrics in the same bath with a compound enzyme preparation, which can solve the disadvantages of high energy consumption and high pollution of the current chemical pretreatment method for cotton fabrics without causing serious damage to the fabrics. Shorten the processing flow

Method used

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  • One-bath scouring and bleaching method for cotton fabric combined with enzyme preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Example 1: Traditional scouring and bleaching process (comparative example)

[0009] Fabric: Pure cotton poplin (15tex×15tex, 524 pieces / 10cm×283 pieces / 10cm)

[0010] Traditional scouring process: alkali scouring: NaOH 15g / L, penetrant JFC 5g / L, NaHSO 3 1g / L, Na 3 PO 3 1g / L, pH 13, temperature 95°C, bath ratio 1:20, treatment for 60 minutes.

[0011] Traditional bleaching process: 30% H 2 O 2 5g / L, 1g / L oxygen bleaching stabilizer RB-3, pH 10.5, bath ratio 1:20, temperature 90℃, 60min. The results are shown in Table 1.

Embodiment 2

[0012] Example 2: Enzymatic scouring and traditional bleaching process (comparative example)

[0013] Fabric: Pure cotton poplin (15tex×15tex, 524 pieces / 10cm×283 pieces / 10cm)

[0014] Enzyme scouring: scouring enzyme preparation (cutinase, alkaline pectinase, alkaline xylanase, alkaline cellulase) 1.5g / L; penetrant JFC 5g / L, and 1g / L Triton X- 100; bath ratio 1:20, pH 10, temperature 60°C, 60min.

[0015] Traditional bleaching: 30% H 2 O 2 5g / L, 3g / L oxygen bleaching stabilizer RB-3, pH 11, bath ratio 1:20, temperature 90℃, 60min.

[0016] Enzymatic scouring of cotton fabric has the same treatment effect as alkali treatment, but the damage to the fabric is less. The results are shown in Table 1.

Embodiment 3

[0017] Example 3: Enzyme scouring cotton fabric, glucose oxidase generates hydrogen peroxide bleaching (different baths)

[0018] Fabric: Pure cotton poplin (15tex×15tex, 524 pieces / 10cm×283 pieces / 10cm)

[0019] Enzyme scouring: scouring enzyme preparation (cutinase, alkaline pectinase, alkaline xylanase, alkaline cellulase) 1.5g / L; penetrant JFC 5g / L, and 1g / L Triton X- 100; bath ratio 1:20, pH 10, temperature 60°C, 60min.

[0020] Bleaching process by adding sugar oxidase to generate hydrogen peroxide in the bleaching bath: composition of the bleaching bath: sugar oxidase 1.0g / L, glucose 3g / L, penetrant JFC 4g / L, 3g / L oxygen bleaching stabilizer RB-3, Bath ratio 1:20, pH 8, temperature 55°C, treatment for 60 minutes, then heat up to 90°C, then adjust pH 10, and act for 60 minutes for bleaching.

[0021] Sugar oxidase uses glucose as a substrate to generate hydrogen peroxide. The results are shown in Table 1.

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Abstract

A method of using compound enzyme preparation to execute same bath boiling-off and bleaching to cotton fabric, relates to a plurality of alkaline enzyme preparation in the application technique field of the cotton fabric boiling-off and bleaching technique. The enzyme preparation for boiling-off and bleaching is compounded and mixed by horniness enzyme , alkaline pectic enzyme, alkaline xylanase, alkali cellulose enzyme and sugar oxidizing enzyme. The invention adds in the compound enzyme preparation, amylaceum, oxygen bleaching stabiliser RB-3, osmotic agent and JFC triton X-100 under the condition of 55-70 EDG C and ph 8-10 to execute boiling-off to the cotton fabric. After the boiling-off, four acetyl ethylene diamine (TAED) is added in the boiling-off bath to activate hydrogen peroxide to bleach the fabrics for 30min. After the inventive process to cotton fabric, the invention has a high cotton fabric impurity clearance, good fabrics wetting property and high whiteness. The invention is adopted to substitute the traditionary concentrated alkali high temperature chemical processing method, thereby having saved energy, reduced consumption, short process flow and friendly surroundings.

Description

Technical field [0001] A method for scouring and bleaching cotton fabrics in the same bath with a compound enzyme preparation relates to the technical field of application of multiple alkaline enzyme preparations in the scouring and bleaching process of cotton fabrics. Background technique [0002] Traditional cotton fabric scouring and bleaching processes are usually high temperature, high alkali and high pollution, and are not environmentally friendly. Enzymes are used for scouring and bleaching cotton fabrics in the same bath. The processing conditions are mild, the fabric damage is small, energy saving, environmentally friendly, and the process flow is short. Enzyme scouring and bleaching of cotton fabrics in the same bath, the use of optimal compound enzyme preparations, and the optimization of process conditions are issues of practical significance that are closely linked to actual production and face productivity. Summary of the invention [0003] The purpose of the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M16/00C12S11/00D06L3/02D06M101/06D06L4/40D06L4/70D06L4/75
CPCD06M16/003D06L3/11D06L3/16D06M2101/06D06L4/40D06L4/75
Inventor 陈坚堵国成阎贺静李江华
Owner JIANGNAN UNIV
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