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Method for improving fabric ink-jet printing performance by using quaternary ammonium chitosan

A technology of quaternized chitosan and inkjet printing, applied in the direction of dyeing, plant fiber, animal fiber, etc., can solve the problems of cumbersome processing process, poor water absorption, poor water retention, affecting the feel of printed fabrics, etc.

Inactive Publication Date: 2011-05-25
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, due to the low viscosity of inkjet printing ink, some fabrics themselves have poor water absorption and water holding properties, and the printing pattern seepage phenomenon is more serious.
At the same time, compared with dye ink, pigment ink is not bright enough in color, and the color fastness of printing needs to be further improved
After the fabric is treated with thickener, urea, etc., the fineness of inkjet printing can be improved, but the hand feeling of the fabric is poor
Disclosed as CN 1707017A is a kind of processing technology of digital ink-jet printing fabric, although the print clarity of ink-jet printing has been improved to a certain extent, due to the use of more thickeners and color-fixing agents in the processing engineering etc., seriously affect the hand feeling of printed fabrics. After printing, a blanket transfer machine is needed to improve the hand feeling of fabrics. The processing technology is relatively cumbersome.

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

[0032] The present invention selects pure cotton shuttle fabric (18.5tex * 18.5tex, 153g / m 2 ) and water-based pigment magenta ink, and set the printing line to 500 μm at the same time, the process used is as follows:

[0033] (1) Fabric pretreatment: quaternized chitosan 8g / l, adjust the pH of the modified solution to be 9, the temperature is 70°C, the modification time is 20min, and the bath ratio is 1:30;

[0034] (2) drying: drying the modified fabric at 90°C;

[0035] (3) Inkjet printing: Inkjet printing is carried out at a temperature of 25°C and a relative humidity of 65%, and the resolution is set to 720dpi;

[0036] (4) Baking: Baking at 120°C for 3 minutes;

[0037] After the above treatment, the weft line width of inkjet printing on cotton fabric was improved from 773.0 μm to 675.7 μm, and the radial line width was improved from 884.7 μm to 738.6 μm, which were increased by 12.6% and 16.5% respectively; The K / S value increased from untreated 3.20 to 4.87; both dr...

Embodiment 2

[0039] The present invention selects crepe chine silk fabric (64g / m 2 ) and water-based pigment magenta ink, and set the printing line to 500 μm at the same time, the process used is as follows:

[0040] (1) Fabric pretreatment: quaternized chitosan 6g / l, adjust the pH of the modified solution to be 6, the temperature is 60°C, the modification time is 15min, and the bath ratio is 1:20;

[0041] (2) drying: drying the modified fabric at 70°C;

[0042] (3) Inkjet printing: Inkjet printing is carried out at a temperature of 25°C and a relative humidity of 65%, and the resolution is set to 720dpi;

[0043] (4) Baking: bake at 100°C for 3 minutes;

[0044] After the above treatment, the weft line width of inkjet printing on cotton fabrics was improved from 851.4 μm to 692.3 μm, and the radial line width was improved from 962.4 μm to 757.8 μm, which increased by 18.7% and 21.2% respectively; K / S value increased from untreated 5.43 to 6.99; dry and wet rubbing fastness increased b...

Embodiment 3

[0046] The present invention selects pure cotton shuttle fabric (18.5tex * 18.5tex, 153g / m 2 ) and water-based pigment magenta ink, and set the printing line to 500 μm at the same time, the process used is as follows:

[0047] (1) fabric pretreatment: quaternized chitosan 10g / l, adjust the pH of the modified solution to be 9, the temperature is 60°C, the modification time is 15min, and the bath ratio is 1:20;

[0048] (2) drying: drying the modified fabric at 90°C;

[0049] (3) Inkjet printing: Inkjet printing is carried out at a temperature of 25°C and a relative humidity of 65%, and the resolution is set to 720dpi;

[0050] (4) Baking: bake at 130°C for 4 minutes;

[0051] After the above treatment, the weft line width of inkjet printing on cotton fabrics was improved from 754.2 μm to 623.4 μm, and the radial line width was improved from 812.5 μm to 687.3 μm, which were increased by 17.3% and 15.4% respectively; The K / S value increased from untreated 3.20 to 5.21; both th...

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 relates to a method for improving fabric ink-jet printing performance by using quaternary ammonium chitosan, belonging to the technical field of textile chemistry. The method is characterized by comprising the following steps of: respectively using dipping or padding manners to pre-process the fabric by using the water-soluble quaternary ammonium chitosan; then drying and jetting ink and printing. The improved pre-processing technique of the quaternary ammonium chitosan can obviously increase the ink-jet printing performance of the fabric, improve the fineness and color depth of the printing fabric, and increase printing color firming degree. Furthermore, the fabric has good hand feeling and antibacterial performance.

Description

technical field [0001] The invention relates to a method for improving the performance of fabric ink-jet printing by quaternized chitosan, which belongs to the technical field of textile chemistry. Background technique [0002] Chitosan belongs to homogeneous linear polysaccharide derivatives containing amino groups and is a weak cationic polymer. Due to the distribution of many hydroxyl groups and amino groups on the macromolecular chain, it has good reactivity, has good biocompatibility, adsorption, permeability, hygroscopicity and moisture retention, and can be carboxymethylated, acylated, Various chemical modifications such as alkylation, sulfuric acid and phosphorylation, grafting and cross-linking can be used to prepare chitosan derivatives with different structures and remarkable properties. The chitosan derivatives modified by quaternization not only retain the original biocompatibility of chitosan, but also have more application characteristics due to the increased...

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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IPC IPC(8): D06M15/03D06P5/30D06P3/60D06P3/04D06M101/06D06M101/10
Inventor 王潮霞卜广玖
Owner JIANGNAN UNIV
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