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Biological enzyme cold-pad-batch short-process open-width continuous-scouring bleaching and dyeing production technology of cotton knitted fabric

A cotton knitted fabric and production process technology, which is applied in the field of cotton knitted fabric biological enzyme cold pad stacking short-process open-width continuous scouring, bleaching and dyeing production process, can solve the problems of affecting the ecological environment, long process, large fabric damage, etc., and achieves sewage discharge. The effect of reducing the quantity, improving the internal quality, and reducing the overall cost

Active Publication Date: 2014-07-30
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the printing and dyeing of cotton knitted fabrics, intermittent overflow tank alkaline oxygen pretreatment and overflow dyeing have been used for a long time. The existing problems are long process, low efficiency, large fabric damage, high water consumption, high steam consumption, and pollution. Heavy, affecting the ecological environment
In recent years, many scholars have devoted themselves to the research on the application of enzymes in the pretreatment of cotton printing and dyeing. However, due to the difficulty of unifying the process conditions, high raw material costs, and unsatisfactory treatment effects, the application cannot be widely accepted.

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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  • Biological enzyme cold-pad-batch short-process open-width continuous-scouring bleaching and dyeing production technology of cotton knitted fabric
  • Biological enzyme cold-pad-batch short-process open-width continuous-scouring bleaching and dyeing production technology of cotton knitted fabric
  • Biological enzyme cold-pad-batch short-process open-width continuous-scouring bleaching and dyeing production technology of cotton knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0046] Implementation case 1: Dyeing process of 26-count semi-combed yarn double-knitted rib fabric

[0047] Process ① bleaching → process ② washing after scouring → process ③ dyeing → process ④ washing after dyeing

[0048] Process ① Opening and shaping of gray cloth→open cloth feeding→continuous impregnation of the first compound enzyme preparation and loose stacking for pretreatment→continuous impregnation of the second compound enzyme preparation and loose stacking for refining→continuous impregnation of the third Composite enzyme preparation and rolled → after rolling, turn and keep warm and stack.

[0049] The composition and pretreatment process conditions of the first compound enzyme preparation:

[0050] WCK125-1, 3~5 g / L, non-ionic surfactant SFQ-320, 1~2g / L, pH 4.5~5, treatment temperature 40-60℃, vehicle speed 30~50 m / min, liquid carrying rate 110 %, 30°C heat preservation and stacking for 20 minutes;

[0051] The composition and refining process conditions of t...

Embodiment example 2

[0068] Implementation Case 2: Single-sided scouring, bleaching and dyeing of polyester-cotton knitted flannelette

[0069] Technological process: Opening and shaping → Open width cloth feeding → Pretreatment of the first compound enzyme preparation → Refining of the second compound enzyme preparation → Oxygen bleaching of the third compound enzyme preparation → Insulation stacking → Water washing → The fourth compound enzyme preparation Deoxygenation→water rolling, drying→stenter drying→dyeing→insulation stacking→water washing→the fifth compound enzyme preparation soaping→water washing→stenter drying and setting→finished product.

[0070] The composition of the first compound enzyme preparation and pretreatment process conditions:

[0071] WCK125-1, 3~5g / L, non-ionic surfactant SFQ-320, 1~2g / L, pH4~5, treatment temperature 55~60℃, vehicle speed 30~50m / min, liquid carrying rate 110%, 30 ℃ insulation stacking for 20 minutes;

[0072] The composition of the second compound enzy...

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 belongs to the technical field of cotton knitted fabric printing and dyeing and particularly relates to a biological enzyme cold-pad-batch short-process open-width continuous-scouring bleaching and dyeing production technology of a cotton knitted fabric. According to the technology with a biological enzyme technique as core, the whole processes of scouring, bleaching and dyeing of the cotton knitted fabric are performed by virtue of an open-width continuous cold-pad-batch approach, and the traditional high-temperature strong-alkali technology and the intermittent production technologies such as an overflow vat process can be replaced by the continuous-scouring bleaching and dyeing production technology. Compared with the traditional technology, the continuous-scouring bleaching and dyeing production technology has the effects of saving water by 30%-50%, gas by 15%-20% and dyes by 5%-10%, reducing emission by about 20%, enhancing the application performance and the wearability of the fibers, improving the handfeel of the fabric, increasing the dye-uptake rate and the first-pass yield, and lowering the repair rate; besides, the consumption of raw materials and the comprehensive cost are lowered and the production efficiency is increased remarkably.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing of cotton knitted fabrics in the textile industry, and in particular relates to a production process of biological enzyme cold pad batch short-process open-width continuous scouring, bleaching and dyeing of cotton knitted fabrics. Background technique [0002] Studies have shown that the hydrophobicity of untreated cotton fabrics is mainly derived from natural non-cellulose impurities such as pectin, wax, and ash in the cuticle of cotton fibers. The existence of these impurities not only affects the smoothness of the appearance of the fabric, but also affects Intrinsic quality Wettability also affects the processing quality of dyeing, printing and finishing after dyeing and finishing. Therefore, in order to meet the requirements of subsequent processing and wearing properties, cotton fabrics must go through a series of printing and dyeing processes such as desizing, scouring, dyeing or...

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): D06M16/00D06L3/02D06L1/16D06P5/00D06M101/06D06L4/12D06L4/13
Inventor 周律郭世良
Owner TSINGHUA UNIV
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