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A kind of indigo denim fabric production method

A technology for denim fabrics and production methods, applied in the directions of fabrics, textiles, dyeing methods, etc., can solve the problems of uneven dyeing, cumbersome dyeing process, etc., and achieve the effects of high product quality, improved production efficiency, and continuous indigo dyeing.

Inactive Publication Date: 2019-07-26
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a production method of indigo denim fabric, which solves the problems of cumbersome dyeing process and uneven dyeing caused by accumulation and agglomeration in the dyeing process of existing denim fabrics with loose fibers, and realizes efficient short-process production of indigo denim.

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

[0039] Step (1) using cotton spinning and blowing equipment to open, remove impurities and card the raw cotton to remove short fibers.

[0040] Step (2) The cotton fiber obtained in step (1) is placed in a stainless steel scouring device for scouring, and the scouring agent is composed of: NaOH: 6g / L, hydrogen peroxide: 5g / L, sodium sulfite 3g / L, triphosphate Sodium 3.5g / L, sodium silicate 3g / L, scouring agent (GC-120) 0.8g / L; scouring temperature is 100℃, scouring time is 30 minutes.

[0041] In step (3), the raw cotton obtained in step (2) is processed sequentially by using a carding-dyeing combined equipment, and the short fibers are removed by carding with a carding device to prepare a cotton sliver with a linear density of 5 g / m; dyeing by spiral indigo The device carries out indigo reduction-oxidative dyeing on the cotton sliver, and the composition of the indigo dyeing solution is indigo dye 8g / L, NaOH: 12g / L, and hydrosulfite 10g / L. The dyeing temperature is 25°C; two...

Embodiment 2

[0046] (1) Use cotton spinning and blowing equipment to open, remove impurities and card the raw cotton to remove short fibers.

[0047] (2) the cotton fiber obtained in step (1) is placed in a stainless steel scouring device and scouring, and the composition of scouring agent is: NaOH 10g / L, hydrogen peroxide 8g / L, sodium sulfite 5g / L, trisodium phosphate 3g / L L, sodium silicate 2g / L, scouring agent (GC-120) 1g / L; scouring temperature is 96 ℃, scouring time is 50 minutes.

[0048] (3) The raw cotton obtained in step (2) is processed in turn by using a carding-dyeing combined equipment, and the short fibers are removed by carding through the carding device and prepared into a sliver with a linear density of 10 g / m; through the spiral indigo dyeing device The cotton sliver was dyed by indigo reduction-oxidation, and the composition of the indigo dyeing solution was 10 g / L of indigo dye, 13 g / L of NaOH, and 15.0 g / L of hydrosulfite. The dyeing temperature is 25°C; two washes ar...

Embodiment 3

[0053] (1) Use cotton spinning and blowing equipment to open, remove impurities and card the raw cotton to remove short fibers.

[0054] (2) the cotton fiber obtained in step (1) is placed in a stainless steel scouring device and scouring, and the scouring agent is composed of: NaOH 12g / L, hydrogen peroxide 10g / L, sodium sulfite 4.5g / L, trisodium phosphate 4g / L, sodium silicate 4g / L, scouring agent (GC-120) 0.9g / L; scouring temperature is 90 ℃, scouring time is 60 minutes.

[0055] (3) the raw cotton obtained in step (2) is processed in turn by using the carding-dyeing combined equipment, and the short fibers are removed by carding by the carding device and prepared into a sliver with a linear density of 20g / m; through the spiral indigo dyeing device Indigo reduction-oxidative dyeing was performed on the cotton sliver, and the composition of the indigo dyeing solution was 12 g / L of indigo dye, 20 g / L of NaOH, and 20 g / L of hydrosulfite. The dyeing temperature is 25°C; two wa...

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Abstract

The invention discloses a production method of indigo denim fabric, which is specifically implemented according to the following steps: step 1, opening, removing impurities and carding the raw cotton to remove short fibers; step 2, subjecting the cotton fiber obtained in step 1 to high-temperature alkali-oxidation liquid scouring; step 3, prepare indigo dyed cotton slivers; step 4, carry out multi-channel drawing, roving and spun yarn production and processing in turn to obtain indigo cotton yarn; step 5, step 4 The resulting indigo cotton yarn is woven as a warp. It solves the problems of cumbersome dyeing process and uneven dyeing due to accumulation and agglomeration in the dyeing process of existing denim fabrics dyed with loose fibers, and realizes efficient and short-process production of indigo denim.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a method for producing indigo denim fabrics. Background technique [0002] Denim fabrics are deeply loved by consumers because they carry special cultural meanings. The dyeing of denim includes indigo, sulfur black, black sapphire blue, blue bag black, color basket and other colors and corresponding dyeing methods. Among them, indigo dyeing of denim is a traditional craft for hundreds of years, which dominates denim fabrics. status. Indigo, chemical name 3,3'-dioxo-2,2'-diindolyl-5,5'-disulfonic acid disodium salt, molecular formula C16H8N2Na2O8S2, also known as food blue No. 1, edible cyan No. 2, edible Blue, acid indigo, hardened indigo, water-soluble non-azo colorants. Indigo cannot be directly dissolved in water, so the premise of dyeing cotton yarn with indigo dye is that indigo must first be soluble in water. The most commonly used method is to convert the carbonyl group ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/38D06M11/50D06M11/54D06M11/71D06M11/79D06P1/22D06P1/673D06P3/60D03D15/00D06M101/06D03D15/217D03D15/54
CPCD06M11/38D06M11/50D06M11/54D06M11/71D06M11/79D06P1/22D06P1/6735D06P3/6025D10B2201/02D06M2101/06D03D15/54
Inventor 陈美玉来侃来悦孙润军刘呈坤
Owner XI'AN POLYTECHNIC UNIVERSITY
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