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Device and method for improving color fastness of denim

A cloth color, denim technology, applied in the processing of textile materials, textile and papermaking, liquid/gas/vapor textile processing and other directions, can solve the problem of insufficient effect, and achieve the effect of high cost performance, simple operation and low cost

Pending Publication Date: 2021-02-19
WEIQIAO TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the color fastness is generally improved by adding salt to the sulfur black dyeing solution to fix the color, and increasing the washing force after dyeing to remove more floating colors, but the effect is not significant enough.

Method used

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  • Device and method for improving color fastness of denim
  • Device and method for improving color fastness of denim
  • Device and method for improving color fastness of denim

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a device for improving the color fastness of denim, the device includes a pickling tank 1, a circulation cylinder 2 and a feed tank 3, wherein the volume of the circulation tank 2 is 600×400×450mm, and the volume of the feed tank 3 is 600× 600×600mm, the height of the circulation cylinder 2 does not exceed the height of the pickling tank 1, the pickling tank is provided with the pickling tank feed pipe 6 and the pickling tank discharge pipe 9, the circulation cylinder 2 is provided with the circulation cylinder discharge pipe 5 and the circulation Cylinder return pipe 10, feeding barrel is provided with feeding barrel discharging pipe 4,

[0025] The feeding pipe 4 of the feeding barrel is set above the circulation cylinder 2 for replenishing acetic acid into the circulation cylinder 2, the circulation cylinder discharge pipe 5 is connected with the pickling tank feeding pipe 6, and the circulation cylinder discharge pipe 5 is set 2, the circ...

Embodiment 2

[0029] A method for improving the color fastness of denim using the above-mentioned device, the method is that after the warp yarn is dyed and washed, it is immersed in a pickling tank for pickling, wherein

[0030] The specification of warp yarn is 10,

[0031] The dyeing process uses sulfur black and sulfurized alkali at a mass ratio of 1:2 to dye at 90°C.

[0032] The temperature of the water washing process is 60°C, and the time is 10min.

[0033] The pickling process uses acetic acid with a pH value of 4 to 6, and the acetic acid supply to the pickling tank is controlled at 50mL / 30″.

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Abstract

The invention relates to the technical field of textile, in particular to a device and method for improving the color fastness of denim. The device comprises a pickling tank, a circulating cylinder and a material supplementing barrel. A discharging pipe of the material supplementing barrel is arranged above the circulating cylinder, a discharging pipe of the circulating cylinder is connected witha material supplementing pipe of the pickling tank, a circulating pump is installed on the discharging pipe of the circulating cylinder, the material supplementing pipe of the pickling tank is horizontally arranged above the pickling tank, a plurality of material supplementing holes are formed in the material supplementing pipe of the pickling tank, and a discharging pipe of the pickling tank is connected with a material returning pipe of the circulating cylinder. The method comprises the following steps that warp yarns of the denim are dyed and washed, and are immersed into the pickling tankfor pickling. The cloth is padded with acetic acid, so that more sulfide black dyes are more firmly attached to the yarns.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a device and method for improving the color fastness of denim. Background technique [0002] Denim, a coarse cotton roving cloth, was first used as sails or tents for nautical vessels because of its thick texture, toughness and practicality. A series of evolutions have taken place. In order to improve market competitiveness and meet the individual needs of the market, denim manufacturers have developed new varieties of denim with different raw material structures, yarn count specifications, and shades, such as sulfur black dyeing and so on. [0003] Sulfur black is a black flaky solid that imparts a new color to denim. When ordinary sulfur black is used, it is necessary to add sulfide alkali and dye it at high temperature. The resulting denim has low color fastness. After soaking in warm water, it will fade seriously, and the color difference between before and after washing is...

Claims

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Application Information

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IPC IPC(8): D06B19/00
CPCD06B19/0005D06B19/0064
Inventor 张红霞魏家坤王晓芸高延忠宋海霞牛相国宋建军
Owner WEIQIAO TEXTILE
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