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Chinlon dyeing process adopting natural dye

A technology of natural dyes and nylon, which is applied in the field of chemical fibers, can solve the problems affecting the brightness and aesthetics of dyed fabrics, non-conformity, and dull fabric shades, etc., and achieve good soaping effect, enhanced washability, and high dyeing fastness. Effect

Inactive Publication Date: 2015-06-10
TAICANG TIANLONG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to improve the fastness of dyed fabrics, natural dyes are currently dyed with mordant dyeing. The mordants used are generally heavy metal ions, which do not meet the requirements of current ecological textiles, and the shade of fabrics after heavy metal ion mordant dyeing mostly becomes dim, affecting Brightness and aesthetics of dyed fabrics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of dyeing process of polyamide fibers utilizing natural dyes, comprising the following steps:

[0031](1) Pretreatment: Pretreatment of nylon, specifically: use urea 1g / L, phosphorus-free neutral deoiling spirit TF-104M 4.5 g / L, sodium dodecylbenzenesulfonate 1 g / L, 60 %H2O2 2 g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, then the water bath is heated up at a rate of 1.5°C / min, when the temperature rises to 90°C, keep at this temperature 30-40min, then the temperature of the water bath is lowered at a rate of 1.5°C / min. When the temperature drops to 60°C, the treated wastewater is discharged, and then re-injected with clean water and rinsed at room temperature until the lotion is neutral, and finally dried;

[0032] (2) Pre-setting: the pre-setting process is performed on the chemical fiber through the pre-setting machine. During the pre-setting process, the setting temperature is 160°C, the speed is 20m / min, and the overfeed is 5%; ...

Embodiment 2

[0041] A kind of dyeing process of polyamide fibers utilizing natural dyes, comprising the following steps:

[0042] (1) Pretreatment: Pretreatment of nylon, specifically: urea 1.3g / L, phosphorus-free neutral deoiling spirit TF-104M 5 g / L, sodium dodecylbenzenesulfonate 1.3g / L, 60% hydrogen peroxide 2.5g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, the water bath is then heated up at a rate of 1.5°C / min, when the temperature rises to 90°C, at this temperature Keep it for 30-40 minutes, then lower the temperature of the water bath at a rate of 1.5°C / min. When the temperature drops to 60°C, discharge the treated wastewater, then re-inject clean water and rinse at room temperature until the lotion is neutral, and finally dry it ;

[0043] (2) Pre-setting: the pre-setting process is performed on the chemical fiber through the pre-setting machine. During the pre-setting process, the setting temperature is 165°C, the vehicle speed is 25m / min, and the ove...

Embodiment 3

[0052] A kind of dyeing process of polyamide fibers utilizing natural dyes, comprising the following steps:

[0053] (1) Pretreatment: Pretreatment of nylon, specifically: use urea 1.5g / L, phosphorus-free neutral deoiling spirit TF-104M 5.5 g / L, sodium dodecylbenzenesulfonate 1.5 g / L, 60% hydrogen peroxide 3 g / L, treated in a 30°C water bath for 2-3 minutes, the bath ratio is 20:1, the water bath is then heated up at a rate of 1.5°C / min, when the temperature rises to 90°C, at this temperature Keep it for 30-40 minutes, then lower the temperature of the water bath at a rate of 1.5°C / min. When the temperature drops to 60°C, discharge the treated wastewater, then re-inject clean water and rinse at room temperature until the lotion is neutral, and finally dry it ;

[0054] (2) Pre-setting: the pre-setting process is performed on the chemical fiber through the pre-setting machine. During the pre-setting process, the setting temperature is 170°C, the speed is 30m / min, and the overf...

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PUM

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Abstract

The invention provides a chinlon dyeing process adopting natural dye. The method comprises the steps of pretreatment, presetting, dyeing, soaping, fixation, softening treatment, drying, setting and rolling. The natural dye, alizarin, is adopted, rare earth chloride is adopted as dye mordant, the dyeing effect is better, the washability is greatly enhanced, and meanwhile dyed chinlon fibers have the good antibacterial property. The washing and fixation process is added, the dyeing firmness is good, environment-friendly formaldehyde-free TCD-R is adopted in the fixation process, chinlon is dried step by step after fixation, and the firmness of the chinlon is greatly improved. The softening treatment process is added, the color fastness and softness of fabric are improved, the roughness of the fabric is reduced, and the fabric is fluffy and elastic.

Description

technical field [0001] The invention relates to the chemical fiber field, in particular to a nylon dyeing process using natural dyes. Background technique [0002] Chemical fibers are fibers with textile properties that are made from natural polymer compounds or artificially synthesized polymer compounds through the processes of preparing spinning dope, spinning and post-treatment. It has the advantages of light resistance, wear resistance, easy washing and drying, no mildew and no moths. Widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, hoses, ropes, fishing nets, electrical insulation wires, medical sutures, tire cords and parachutes, etc. [0003] Nylon is one of the most widely used varieties of synthetic fibers. It not only has high mechanical strength but also has good elasticity. It is an ideal raw material for underwear, sports fabrics or socks. Nylon fabrics are generally dyed with acid dyes and neutral dyes, and can also be dyed w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/34D06P1/673D06P3/24D06P5/10D06P5/08D06M13/46D06M13/432D06M13/256D06M11/50D06L1/16D06B3/04D06B15/00D02J1/22D02J13/00D06B3/10D06C7/02D06M101/34
Inventor 陈志清
Owner TAICANG TIANLONG CHEM FIBER
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