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One-step process preprocessing technology of cotton fibric biological enzyme high-temp desizing refining and bleaching

A treatment process and bio-enzyme technology, which is applied in biochemical fiber treatment, textile material treatment, liquid/gas/steam textile material treatment, etc. Less, high quality, good effect

Inactive Publication Date: 2008-12-10
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the enzyme species specified in WO2006002034, these patents generally have the disadvantages of relatively many process steps, relatively long processing time, and relatively complicated operation technology.

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

Embodiment 1

[0022] Cotton poplin (size 67”40×40 133×72) enzyme desizing scouring bleaching

[0023] Process flow: water pretreatment→enzyme padding→steaming→bleaching→washing→drying

[0024] Water pretreatment: soak the cotton fabric in hot water at 90°C for 1 minute;

[0025] Padding enzyme solution: at 60°C, pad in the biological enzyme treatment solution; the composition of the treatment solution is 1 gram / liter of alkaline amylase at medium temperature, 1 gram / liter of alkaline pectinase at medium temperature, and 4 grams of calcium chloride / L, penetrating agent JFC 1 g / L, 100% hydrogen peroxide 5 g / L, oxygen bleaching stabilizer TF-122 1 g / L, pH value 9.5, entrainment rate 100%, 2 dips and 2 rolls.

[0026] Steaming: steaming with high-temperature saturated steam; steaming temperature 100°C, saturated steam humidity 95%, time 10 minutes.

[0027] Washing: Wash the cotton fabric at a temperature of 95°C; the composition of the washing liquid is 3 g / L sodium dodecylbenzene sulfonate...

Embodiment 2

[0030] Cotton poplin (specification: 63”40×40 133×72) enzymatic scouring

[0031] Process flow: water pretreatment → padding amylase solution → first steaming → first water washing → padding pectin enzyme solution → second steaming → second washing → drying.

[0032] Water pretreatment: pretreatment in hot water at 80°C for 2 minutes;

[0033] Padding amylase solution: 2 dips and 2 pads in the biological enzyme treatment solution at 20°C, the liquid retention rate is 80%; the amylase solution is composed of wide temperature neutral amylase 0.1 g / L, penetrant JFC 10 g / L , the pH value is 7.

[0034] One-time steaming: temperature 100°C, saturated steam humidity 95%, time 2 minutes.

[0035] One-time water washing: water washing solution, sodium dodecylbenzene sulfonate 3 g / L, sodium carbonate 3 g / L, temperature 95°C, immerse for 1 minute, then wash 2 times with cold water.

[0036] Pectin enzyme solution for padding: 2 dips and 2 pads in the biological enzyme treatment solut...

Embodiment 3

[0041] Cotton poplin (specification: 63”40×40 110×90) enzyme scouring bleaching

[0042] Process flow: water pretreatment → alkali desizing → pectin enzyme solution padding → steaming → bleaching → washing → drying

[0043] Water pretreatment: pretreatment in hot water at 100°C for 1 minute;

[0044]Wash in alkaline desizing solution, the alkaline desizing solution is 10 g / L of sodium hydroxide and 1 g / L of penetrant JFC. The bath ratio is 1:50, the treatment temperature is 100°C, and the treatment time is 30 minutes. After taking it out, wash it once with hot water at 60°C, and wash it twice with cold water;

[0045] Padding pectinase solution: composed of pectinase solution, pectinase 1 g / L, penetrant JFC 1 g / L. The pH value is 8, the padding temperature is 60°C, the liquid loading rate is 100%, 2 dipping and 2 rolling.

[0046] Steaming: temperature 100°C, saturated steam humidity 95%, time 2 minutes

[0047] Bleaching: The composition of bleaching solution is sodium d...

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PUM

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Abstract

The invention discloses a cotton fabric biological enzyme high temperature desizing refining bleaching single stage process pre-processing technology. It includes the following steps: pre-processing in hot water at 80-100 degree centigrade for 0-2min; two-dipping two-rolling in biological enzyme treating liquid at 20-60 degree centigrade; liquid carrying ratio is 80-120%; steaming by high temperature saturated steam at 100-120 degree centigrade 80-100% saturated steam humidity for 0.5-10min; water washing at 90-100 degree centigrade; dipping for 1-10min; water washing for 2-3 times at 80-100 degree centigrade. It has the advantages of simple operation, effective pre-processing, environmental protection, high working efficiency, low labor intensity, saving energy and water etc.

Description

technical field] [0001] The invention relates to a pretreatment process of cotton fabric in the printing and dyeing industry, in particular to a one-step pretreatment process of cotton fabric high-temperature desizing, scouring and bleaching with biological enzymes. Background technique [0002] Cotton fiber contains 0.4-1.2% pectin, 0.4-1.2% wax, 1.0-1.9% protein, 0.7-1.6% ash and other natural impurities, these impurities mainly exist in the cuticle and primary cells of cotton fiber in the wall. In addition, due to the needs of the weaving process, the warp yarns must be sized, and starch or modified starch sizing is generally used for cotton and cotton blended fabrics. The presence of these impurities seriously affects the wettability of cotton fibers, makes cotton fibers hydrophobic, and affects the properties of cotton fibers such as post-dyeing treatment. Therefore, the first step in the dyeing and finishing of cotton textile products is to carry out pre-treatment, r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B1/00D06M16/00
Inventor 陆大年王雷
Owner DONGHUA UNIV
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