Production method of indigo jean fabric

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

Inactive Publication Date: 2017-04-19
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) Use cotton spinning cleaning equipment to open, remove impurities, and card to remove short fibers from the raw cotton.

[0040] Step (2) Place the cotton fiber obtained in step (1) in a stainless steel scouring device for scouring. The scouring agent consists 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; the scouring temperature is 100°C, and the scouring time is 30 minutes.

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

Embodiment 2

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

[0047] (2) Place the cotton fiber obtained in step (1) in a stainless steel scouring device for scouring. The scouring agent consists of: 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; The scouring temperature is 96 ℃, and the scouring time is 50 minutes.

[0048] (3) The raw cotton obtained in step (2) is processed sequentially by carding-dyeing equipment, and the short fibers are removed by carding through a carding device and prepared into a sliver with a linear density of 10 g / m; through a spiral indigo dyeing device Carry out indigo reduction-oxidative dyeing to cotton sliver, the composition of indigo dyeing solution is indigo dye 10g / L, NaOH: 13g / L, sodium hydrosulfite 15.0g / L. The dyeing temperature is 25°C; two washings are carried out by the washing de...

Embodiment 3

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

[0054] (2) Place the cotton fiber obtained in step (1) in a stainless steel scouring device for scouring. The scouring agent consists 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; the scouring temperature is 90°C, and the scouring time is 60 minutes.

[0055] (3) The raw cotton obtained in step (2) is processed sequentially by carding-dyeing equipment, and the short fibers are removed by carding device to prepare a sliver with a linear density of 20 g / m; through a spiral indigo dyeing device Carry out indigo reduction-oxidative dyeing to cotton sliver, the composition of indigo dyeing solution is indigo dye 12g / L, NaOH: 20g / L, hydrosulfite 20g / L. The dyeing temperature is 25°C; two washings are carried out by the washing device to wash off the floating ...

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Abstract

The invention discloses a production method of an indigo jean fabric. The production method comprises the following steps: step one, loosening raw cottons, removing impurities, and carrying out carding to remove short fibers; step two, boiling the cotton fibers obtained in the step one in a high temperature alkali-oxygen liquid; step three, preparing indigo dyed cotton strips; step four, integrating multiple dyed cotton strips obtained in the step three, and carrying out rough yarn and spun yarn production and processing to obtain indigo cotton yarns; and step five, taking the indigo cotton yarns obtained in the step four as the warps to carry out weaving. In the prior art, loose fibers can easily get stacked and agglomerated during the dyeing process, so the dyeing process becomes tedious, and the dyeing becomes uneven, the provided production method solves the abovementioned problems and is capable of producing indigo jean fabrics efficiently, and moreover, the production flow is short.

Description

technical field [0001] The invention belongs to the technical field of textiles, and relates to a production method of indigo denim fabric. Background technique [0002] Denim fabric is deeply loved by consumers because of its special cultural meaning. The dyeing of denim includes various colors and corresponding dyeing methods such as indigo, sulfur black, black sapphire blue, blue-wrapped black, and color basket. Among them, indigo dyeing of denim is a traditional process for hundreds of years, and it is dominant in denim fabrics. status. Indigo, chemical name 3,3′-dioxo-2,2′-biindolyl-5,5′-disulfonic acid disodium salt, molecular formula C16H8N2Na2O8S2, also known as food blue No. 1, edible blue No. 2, edible Indigo, acid indigo, and hardened indigo are water-soluble non-azo colorants. Indigo cannot be directly dissolved in water, so the dyeing of indigo dye to cotton yarn requires the premise that indigo must first be soluble in water. Form a hydroxyl group to form a...

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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Patent Type & Authority Applications(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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