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Pretreatment method for improving direct spray inkjet printing definition of polyester fabric

A polyester fabric, inkjet printing technology, applied in fiber treatment, dyeing, textiles and papermaking, etc., can solve the problems of high cost, affecting the feel of printed fabrics, not suitable for batch processing of polyester fabrics, etc.

Inactive Publication Date: 2017-05-31
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of more paste, polymer compounds, etc. in the process, it seriously affects the feel of printed fabrics.
(2) Use cationic reagents to carry out cationic treatment on polyester fabrics, and realize the fixation of fabrics to ink droplets by the attraction of positive and negative charges, thereby reducing the penetration and seepage phenomenon of inkjet printing, as patent CN102071574A discloses the use of quaternization Chitosan is used as a pretreatment agent to improve the clarity and color depth of the inkjet printing of the fabric, and to give the antibacterial function of the polyester fabric, but this method can only be used for the printing of the dye ink; (3) for polyester Hydrophilic modification of fabrics to improve the water holding capacity of polyester fabrics, such as the use of plasma technology and high-energy ray irradiation technology to improve the clarity of inkjet printing are all such methods, but this method requires high equipment and operation. The cost is also high, not suitable for batch processing of 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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  • Pretreatment method for improving direct spray inkjet printing definition of polyester fabric
  • Pretreatment method for improving direct spray inkjet printing definition of polyester fabric
  • Pretreatment method for improving direct spray inkjet printing definition of polyester fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment selects 230g / m for use 2 Polyester warp knitted fabric, the process used is as follows:

[0027] (1) Preparation of porous nano-silica dispersion: Take 12g of glycidyltrimethylammonium chloride, 0.4g of Tween 60, 147.6g of deionized water, after fully stirring under the mixer, add 40g of porous nano-silica Silicon, continue to stir for 30 minutes, and then place it in a laboratory circulating sand mill to grind for 2 hours to obtain a porous nano-silicon oxide dispersion with an average particle size of <200nm and a porous nano-silicon oxide content of 20%;

[0028] (2) Preparation of pretreatment liquid: 60g of porous nano-silica dispersion, 4g of antistatic agent TM, 4g of urethane thickener, 6g of Tween 60, 126g of deionized water, fully stirred under the stirrer, the speed 800-1000r / min, the stirring time is 30min, and the fabric pretreatment liquid is obtained.

[0029] (3) padding pretreatment liquid: the polyester fabric padding pretreatment liq...

Embodiment 2

[0037] This embodiment selects 230g / m for use 2 Polyester warp knitted fabric, the process used is as follows:

[0038] (1) Preparation of porous nano-titanium oxide dispersion: take 10g of glycidyltrimethylammonium chloride, 0.8g of Tween 60, 149.2g of deionized water, after fully stirring under the stirrer, add 40g of porous nano-titanium oxide Titanium, continue to stir for 30 minutes, and then place it in a laboratory circulating sand mill and grind for 2 hours to obtain a porous nano-titanium oxide dispersion with an average particle size of <200nm and a porous nano-titanium oxide content of 20%;

[0039] (2) Preparation of pretreatment liquid: with 80g of porous nano-titanium oxide dispersion, 4g of antistatic agent TM, 6g of urethane thickener, 6g of Tween 60, 104g of deionized water, fully stirred under the stirrer, the rotating speed 800-1000r / min, the stirring time is 30min, to obtain the fabric pretreatment liquid;

[0040](3) padding pretreatment liquid: the poly...

Embodiment 3

[0048] This embodiment selects 230g / m 2 Polyester warp knitted fabric, the process used is as follows:

[0049] (2) Preparation of pretreatment solution: 4g of antistatic agent TM, 4g of urethane thickener, 6g of Tween 60, 186g of deionized water, fully stirred under the agitator, rotating speed 800-1000r / min, stirring time 30min to obtain the fabric pretreatment solution.

[0050] (3) padding pretreatment liquid: the polyester fabric padding pretreatment liquid, during padding, the liquid rate is controlled between 60-100%;

[0051] (4) Pre-baking and baking: pre-baking the padded fabric at 60°C, and then baking at 150°C;

[0052] (5) Inkjet printing: Under the condition of 720×540dpi, 3Pass, water-based disperse dye ink is used for inkjet printing;

[0053] (6) Sublimation and color fixation: Sublimation and color fixation at 180° C. for 1 min.

[0054] Table 3 Performance changes before and after fabric treatment

[0055]

[0056] As can be seen from Table 3, compar...

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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Abstract

The invention discloses a pretreatment method for improving the direct spray inkjet printing definition of polyester fabric, and belongs to the field of digital inkjet printing of textiles. A method for improving the direct spray inkjet printing definition of the polyester fabric by adopting a nano porous material is provided for the problem of an indistinct printed pattern caused by static electricity in the direct spray inkjet printing of the polyester fabric. Compared with improvement of the inkjet printing performance, the definition, the color depth and obvious brightness effect of the pattern are improved. The method is simple in process, high in operability, friendly to environment and suitable for batch processing of the polyester fabric, and meets the modern industrial environmental protection requirements.

Description

technical field [0001] The invention relates to a pretreatment method for improving the clarity of direct-injection ink-jet printing of polyester fabrics, belonging to the field of digital ink-jet printing of textiles. Background technique [0002] Direct-injection inkjet printing on polyester fabrics has attracted much attention because it saves the transfer medium. However, due to the low viscosity of the dispersed ink and the lack of hydrophilic groups on the surface of polyester fabrics, after ink droplets are sprayed onto polyester fabrics, the With the warp and weft of the fiber, it diffuses to the surrounding area, and infiltration occurs, causing the edge of the pattern to be blurred and the fineness to decrease. In order to improve the clarity of direct-injection inkjet printing patterns, it is necessary to properly pretreat the polyester fabric before printing. [0003] At home and abroad, there are many studies on fabric pretreatment to improve the clarity of its...

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): D06M11/79D06M11/45D06M11/46D06M13/463D06M15/53D06M15/356D06M15/564D06M15/333D06P5/30D06M101/32
CPCD06M11/79D06M11/45D06M11/46D06M13/463D06M15/333D06M15/3562D06M15/53D06M15/564D06M2101/32D06P5/30
Inventor 付少海李敏张丽平赵影田安丽
Owner JIANGNAN UNIV
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