Method for increasing wet rubbing fastness of etched or sanded dark fabric

A wet rubbing fastness and sanding technology, applied in the finishing field of etched or sanded fabrics, can solve the problems of increased amount of floating fibers, decreased wet rubbing fastness, low rubbing fastness, etc., and achieves good high temperature resistance and dilution Stability, improved wet rubbing fastness, cost controllable effects

Inactive Publication Date: 2015-05-13
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (4) Fiber damage: Fiber damage is mainly divided into two types, one is visible damage, and the degree of this mechanical damage is generally measured by the short-lint rate. The amount of floating fibers increases, destroying the yarn structure, affecting the dryness and strength of the yarn, resulting in a decrease in the wet rubbing fastness
The study found that the floating dye on the fiber is mainly distributed on the surface of the fiber through the following three states: (a) Smaller dye molecular aggregates are distributed on the fiber, and its fixation force is low, which can be used in soaping and washing processes. (b) Larger aggregates of dye molecules are fixed on the fibers and are not easy to remove under normal washing conditions, but dyed fabrics will cause transfer and staining after being subjected to friction, which is the main cause of low rubbing fastness Factors; (c) Dye aggregates on the surface of the fiber to form crystals, and these dye crystals are transferred to the test white cloth due to the high friction when they are rubbed, which is also an important reason for reducing the wet rubbing fastness of dyed fabrics

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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  • Method for increasing wet rubbing fastness of etched or sanded dark fabric
  • Method for increasing wet rubbing fastness of etched or sanded dark fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Prepare a finishing solution (the dosage of self-made wet rubbing fastness improving agent is 6% owf, pH value 6.5), heat up to 30°C and keep shaking for 3 minutes, then add black wool-etched knitted cotton-spandex cloth sample (bath ratio 1:10), shake and keep warm Finish for 30 minutes, dry (100°C), bake (160°C, 90S), and test performance (results are shown in Table 1).

[0042] Table 1

[0043] Wet rubbing fastness enhancer concentration %owf 6 Dry rubbing fastness (grade) 4-5 Wet rubbing fastness (grade) 3-4

[0044] (The dry and wet rubbing fastness of the original cloth are grade 3 and grade 2 respectively)

Embodiment 2

[0046] Prepare a finishing solution (the amount of self-made wet rubbing fastness is 8% owf, pH value 7), heat up to 30°C, heat up to 30°C and shake for 3 minutes, then add black brushed knitted cotton-spandex cloth sample (bath ratio 1:10), Shake and keep warm for 30 minutes, dry (100°C), bake (160°C, 90S), and test performance (results are shown in Table 2).

[0047] Table 2

[0048] Wet rubbing fastness enhancer concentration %owf 8 Dry rubbing fastness (grade) 5 Wet rubbing fastness (grade) 4

[0049] (The dry and wet rubbing fastness of the original cloth are grade 3 and grade 1-2 respectively)

Embodiment 3

[0051] Prepare a finishing solution (self-made wet rubbing fastness of 8% owf, softener dosage of 0.5% owf, pH value 6.5), heat up to 30°C and keep warm and shake for 3 minutes, then add black wool-etched knitted cotton-spandex cloth sample (bath Ratio 1:10), shaking and heat preservation for 30 minutes, drying (100°C), baking (160°C, 90S), test performance (results are shown in Table 3)

[0052] table 3

[0053] Softener concentration %owf 0.5 Dry rubbing fastness (grade) 4-5 Wet rubbing fastness (grade) 4

[0054] (The dry and wet rubbing fastness of the original cloth are grade 3 and grade 2 respectively)

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Abstract

The invention relates to a method for increasing wet rubbing fastness of an etched or sanded dark fabric. The method comprises steps as follows: a finishing liquid is prepared and then heated to 30 DEG C, the etched or sanded dark fabric is added, the bath ratio is 1:(7-10), vibration heat-insulation finishing is performed for 20-30 min, and drying and baking are performed. The method is simple and convenient to operate, equipment is not required to be added, and the cost is controllable.

Description

technical field [0001] The invention belongs to the field of finishing methods for etched or sanded fabrics, in particular to a method for improving the wet rubbing fastness of etched or sanded dark fabrics. Background technique [0002] In recent years, with my country's accession to the WTO, the quality requirements of textiles are in line with international standards, and the requirements for the color fastness of dyed fabrics are increasing day by day. Among them, the wet rubbing fastness of knitted fabrics, especially napped and brushed reactive dyed fabrics, especially dark-colored fabrics, has always been concerned. Generally, AATCC, ISO and GB stipulate that the wet rubbing fastness of dyed fabrics is qualified at grade 2-3, but at present, foreign customers often require wet rubbing fastness to reach grade 3 or even 3-4. The actual situation is that domestic factories dye fabrics It can only reach level 2-3 or even less than level 2. Therefore, how to improve the ...

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): D06P5/06D06M15/643
Inventor 蔡再生汪冉王鹏张静章晓勇顾海徐应庆
Owner DONGHUA UNIV
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