Preparation method of high-permeability paste for polyester fabric

A high-permeability, paste technology, applied in the field of printing and dyeing, can solve the problems of unclear pattern outline, poor hand feeling, poor washability, etc., and achieve the effect of improving dyeing permeability, high color fastness to washing, and smooth hand feeling

Inactive Publication Date: 2021-02-02
浙江贝隆纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is expensive, and the printing cost is relatively high, so it has become a top priority to find a low-cost paste that can print fine patterns
[0003] At present, there are two commonly used methods to increase the permeability of polyester printing. One is to use penetrants to improve the permeability of polyester fabrics. The function of penetrants is to reduce the surface tension of fibers. However, it also promotes the diffusion of the printing paste along the horizontal direction of the polyester fabric, causing the printing paste to bleed and the outline of the pattern is not clear; another method is to increase its penetration by increasing the hydrophilicity of the polyester fabric Common methods to increase the hydrophilicity of polyester fabrics include polyester surface graft modification, hydrophilic coating finishing and alkali weight reduction treatment
[0004] The additives currently on the market to increase the permeability of polyester printing all have problems such as poor washability and poor hand feeling, so it is necessary to develop a method for preparing a high-permeability paste for polyester 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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of polyester fabric high permeability paste, comprising the following steps:

[0027] A, after attapulgite is pulverized, cross 120 mesh sieves;

[0028] B, adding water to the pulverized attapulgite and carrying out ball milling for 30min, then adding sodium bicarbonate, modified nano silicon dioxide and aluminum chloride, after stirring evenly, adding chitosan;

[0029] C. After stirring at a high speed of 3000rpm, let stand for 20 minutes, pass through a 250-mesh sieve to obtain a precipitate and a suspension, continue ball milling the precipitate, and spray-dry the suspension to obtain a mixed powder;

[0030] D. Stir the mixed powder and guar gum at a stirring speed of 300rpm for 20min to obtain a paste.

[0031] In the described step B, add the raw material of following weight portion:

[0032] Attapulgite 35 parts

[0033] 100 parts of water

[0034] Chitosan 15 parts

[0035] 3 parts sodium bicarbonate

[0036] Modified nano silica 2 p...

Embodiment 2

[0041] A preparation method of polyester fabric high permeability paste, comprising the following steps:

[0042] A, after attapulgite is pulverized, cross 120 mesh sieves;

[0043] B, adding water to the pulverized attapulgite and carrying out ball milling for 25min, then adding sodium bicarbonate, modified nano silicon dioxide and aluminum chloride, after stirring evenly, adding chitosan;

[0044] C. After stirring at a high speed of 3500rpm, let stand for 18 minutes, pass through a 250-mesh sieve to obtain a precipitate and a suspension, continue ball milling the precipitate, and spray-dry the suspension to obtain a mixed powder;

[0045] D. Stir the mixed powder and guar gum at a stirring speed of 320 rpm for 18 minutes to obtain a paste.

[0046] In the described step B, add the raw material of following weight portion:

[0047] Attapulgite 42 parts

[0048] 100 parts of water

[0049] Chitosan 12 parts

[0050] Sodium bicarbonate 5 parts

[0051] Modified nano sili...

Embodiment 3

[0056] A preparation method of polyester fabric high permeability paste, comprising the following steps:

[0057] A, after attapulgite is pulverized, cross 120 mesh sieves;

[0058] B. Add water to the pulverized attapulgite and carry out ball milling for 20 minutes, then add sodium bicarbonate, modified nano silicon dioxide and aluminum chloride, stir evenly, add chitosan;

[0059] C. After stirring at a high speed of 4000rpm, let it stand for 15 minutes, pass through a 250-mesh sieve to obtain a precipitate and a suspension, continue ball milling the precipitate, and spray-dry the suspension to obtain a mixed powder;

[0060] D. Stir the mixed powder and guar gum at a stirring speed of 400rpm for 15min to obtain a paste.

[0061] Preferably, in the step B, the following raw materials are added in parts by weight:

[0062] Attapulgite 45 parts

[0063] 100 parts of water

[0064] Chitosan 10 parts

[0065] Sodium bicarbonate 8 parts

[0066] Modified nano silicon dioxid...

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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PUM

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Abstract

The invention discloses a high-permeability paste for a polyester fabric. The high-permeability paste is prepared from the following raw materials in parts by weight of 35-45 parts of attapulgite, 100parts of water, 10-15 parts of chitosan, 3-8 parts of sodium bicarbonate, 1-2 parts of modified nano silicon dioxide and 5-12 parts of aluminum chloride. According to the high-permeability paste, attapulgite, chitosan, modified nano silicon dioxide and aluminum oxide react together under an alkaline condition, and the dyeing paste with a good permeability effect is obtained. According to the paste, conventional nano silicon dioxide is replaced with nano silicon dioxide with double bonds and epoxy groups grafted on the surface, so that the dyeing permeability of the polyester fabric can be remarkably improved, the hand feeling can be smoother, the washing color fastness is high, and decolorization is not likely to happen.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing, in particular to a method for preparing a high-permeability paste for polyester fabrics. Background technique [0002] In reactive dye printing, pastes are generally used as thickeners to adjust the rheological properties of colorants. Guar gum has always been the first choice for reactive dye printing pastes because of its advantages of not reacting with reactive dyes, high color yield, complete color spectrum, easy to wash off from fabrics, and soft fabrics. But it is more expensive, and the printing cost is relatively high, so it has become a top priority to find a low-cost paste that can print fine patterns. [0003] At present, there are two commonly used methods to increase the permeability of polyester printing. One is to use penetrants to improve the permeability of polyester fabrics. The function of penetrants is to reduce the surface tension of fibers. However, it also pro...

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): D06P1/673D06P1/48D06P1/38D06P3/52
CPCD06P1/67383D06P1/6735D06P1/67341D06P1/48D06P1/38D06P3/528
Inventor 徐应能
Owner 浙江贝隆纺织有限公司
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