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Dyeing method of polypropylene non-woven fabric material

A polypropylene non-woven fabric and dyeing method technology, which is applied in the dyeing field of polypropylene non-woven fabric materials, can solve the problems of high cost and incomplete chromatogram, and achieve the effect of fast and cheap operation

Inactive Publication Date: 2014-09-10
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the current solutions are the coloring method of dope solution before spinning. Although it can solve the dyeing problem, it is expensive and the chromatogram is incomplete.

Method used

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  • Dyeing method of polypropylene non-woven fabric material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Weigh 0.25g of disperse blue, disperse red and disperse yellow, add 7.5g of self-crosslinking adhesive, add water to make up the total mass to 50g, stir at 37°C for 10min at a high speed, and the speed is 300 rpm to make disperse dyes color paste;

[0024] (2) Immerse the polypropylene non-woven fabric in three kinds of disperse dye color pastes respectively, take it out after 5 minutes, the liquid retention rate is 100%, and place it in an oven for 5 minutes at 90°C;

[0025] (3) Cut undyed non-woven fabrics and dyed non-woven fabrics into 200mm*200mm, and test their air permeability in a differential pressure air-permeable instrument;

[0026] (4) Test results such as figure 1 As shown, the polypropylene non-woven fabric has a high air permeability. After dyeing with paint, the surface of the polypropylene fiber is formed into a film, and its air permeability decreases, but the air permeability is still high.

Embodiment 2

[0028] (1) Weigh 0.125g of disperse blue, disperse red and disperse yellow, add 10g of self-crosslinking adhesive, add water to make up the total mass to 50g, stir at 37°C for 15min at a speed of 500 rpm to make disperse dye color pulp;

[0029] (2) Pad the polypropylene non-woven fabric in the three kinds of disperse dye color paste respectively, take it out after 5 minutes, control the liquid retention rate to 300%, pass it through the paddle car, and dry it in an oven at 90°C for 3 minutes;

[0030] (3) Cut the dyed non-woven fabric into 50mm*200mm, and test its dry rubbing fastness and wet rubbing fastness in the rubbing fastness meter;

[0031] (4) The test results are shown in Table 1. The polypropylene nonwoven fabric after finishing with disperse dye paste has a certain degree of rubbing resistance, and the dry rubbing fastness is higher than the wet rubbing fastness.

[0032] sample Dry rubbing fastness Wet rubbing fastness red 3 2 yellow 2...

Embodiment 3

[0035] (1) Weigh 0.75g of Disperse Blue, Disperse Red and Disperse Yellow, add 16g of self-crosslinking adhesive, add water to make up the total mass to 100g, stir at 37°C for 30min at a high speed, and the speed is 800 rpm to make a disperse dye color paste ;

[0036] (2) Immerse the polypropylene non-woven fabric in the three kinds of disperse dye color pastes respectively, take it out after 30s, the liquid-carrying rate is 300%, and place it in an oven for 4 minutes at 80°C;

[0037] (3) Cut the dyed non-woven fabric into 40mm*100mm, and fit it with the wool lining, and test its washing fastness in a soaping fastness tester;

[0038] (4) The test results are shown in Table 2. The polypropylene non-woven fabric after finishing with disperse dye paste has a certain degree of washing and rubbing resistance, and the number of fading is not high.

[0039] sample Washing fastness Color fastness red 3-4 3 yellow 2 2 blue 3 2

[0040] Table ...

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Abstract

The invention relates to a dyeing method of a polypropylene non-woven fabric material. The method comprises the following steps: dispersing dye in water; adding a self-cross-linking adhesive, and emulsifying to obtain a dispersed dye system containing the adhesive; then treating a polypropylene non-woven fabric by using a soaking or padding method, and drying the polypropylene non-woven fabric, wherein the dye accounts for 0.25-1 mass percent of the dispersed dye system, and the self-cross-linking adhesive accounts for 15-20 mass percent of the dispersed dye system. The production process flow of the non-woven fabric is not changed, the non-woven fabric carries different colors, and the method plays an important role in business application of the non-woven fabric; used raw materials are low in cost, are easily obtained, and are economical and environmentally friendly; toxic or side effects on a human body are avoided; the used method is quick, simple, convenient, efficient, low in cost and convenient to operate.

Description

technical field [0001] The invention belongs to the field of dyeing methods of nonwoven fabrics, in particular to a dyeing method of polypropylene nonwoven fabric materials. Background technique [0002] Non-woven fabrics are also called non-woven fabrics, non-woven fabrics, or non-woven fabrics for short. Defined as a sheet, web or batt (excluding paper and woven, knitted, tufted, tape Stitch-bonded fabrics and wet-milled felts with stitching yarns. [0003] Polypropylene is polypropylene fiber, it does not have polar or reactive groups that can bind dyes, and its structure is relatively compact, so its dyeability is extremely poor. Most of the current solutions are to use the dope coloring method before spinning. Although the dyeing problem can be solved, the cost is expensive and the chromatogram is incomplete. [0004] Pigment dyeing is a common dyeing method for nonwovens. The paint is non-selective to the fibers and has no affinity with the fibers. With the help of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/79D06P1/16D06P1/44
Inventor 朱利民陶磊宁新彭文忠田玉玲张天雷
Owner DONGHUA UNIV
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