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Digital printing technology for worsted cashmere fabrics

A digital printing and cashmere technology, which is applied in the field of textile production, can solve the problems of low paste removal rate of film-forming substances, unfavorable cleaning and removal of paste, and hard hand feeling of fabrics, so as to achieve the effect of improving dyeing rate and color fastness

Inactive Publication Date: 2016-09-07
JIANGSU SUNSHINE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, chitosan cannot be directly dissolved in water, but can only be dissolved in some organic acids and inorganic acids, so it is not conducive to the cleaning and removal of the paste after printing and steaming, and it will make the fabric feel hard
In addition, the commonly used post-processing fabrics of digital printing mostly adopt the operation steps of washing, soaping, and washing.
In addition, dark inks such as red, purple and black have poor dyeing rate and color fastness on cashmere 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

[0017] For realizing above-mentioned technical effect, the digital printing process of worsted cashmere fabric in embodiment 1 is characterized in that, comprises the following steps:

[0018] S1: Pretreatment, scrape the pretreatment slurry on the manual platform board with 80 mesh screen, scrape 6 knives, put the fabric at 90 ℃ to dry to a semi-dry state, spray rare earth chloride aqueous solution on the scraped surface, Dry at 90°C;

[0019] S2: Digital printing, cyan, red, and yellow predetermined patterns are generated by color card generation software, and fabric inkjet printers containing reactive dye inks are used to print layers of fabrics respectively, and then poured into drying equipment for drying;

[0020] S3: Steaming, steaming the fabric obtained in S2, the steaming temperature is 100°C, and the steaming time is 20 minutes;

[0021] S4: Washing and drying, washing in cold water, soaping in hot water, washing in hot water, washing in cold water, dehydration and...

Embodiment 2

[0027] The difference between embodiment 2 and embodiment 1 is:

[0028] S1: Pretreatment, use a 120-mesh screen to scrape the pretreatment slurry on the manual platform board, scrape 9 knives, dry the fabric at 100°C until it is semi-dry, and apply a rare earth chloride aqueous solution to the scraped coating surface , dried at 100°C;

[0029] S3: Steaming, steaming the fabric obtained in S2, the steaming temperature is 106°C, and the steaming time is 30 minutes;

[0030] The solute in the rare earth chloride aqueous solution is gadolinium chloride, and the mass percentage of the solute in the rare earth chloride aqueous solution is 0.08%.

[0031] The composition of the pretreatment slurry includes 3% of modified starch, 5% of co-solvent, 1-3% of glycerin, 2% of sodium sulfate, 2.5% of ammonium sulfate, 1.4% of thickener, acidic pH regulator and the balance of water, The pH value of the impervious slurry is 5.

[0032] The thickener is a composition of carrageenan and kon...

Embodiment 3

[0035] The difference between embodiment 3 and embodiment 1 is:

[0036] S1: Pretreatment, use a 100-mesh screen to scrape the pretreatment slurry on the manual platform board, scrape 8 knives, dry the fabric at 95°C until it is semi-dry, and apply a rare earth chloride aqueous solution to the scraped coating surface , dried at 95°C;

[0037] S3: steaming, the fabric obtained in S2 is steamed, the steaming temperature is 103°C, and the steaming time is 25 minutes;

[0038] The solute in the rare earth chloride aqueous solution is a 1:1 combination of lanthanum chloride and gadolinium chloride, and the mass percentage of the solute in the rare earth chloride aqueous solution is 0.04%.

[0039] The composition of the pretreatment slurry includes 1.7% of modified starch, 3.5% of co-solvent, 2% of glycerin, 1.5% of sodium bicarbonate, 2% of ammonium sulfate, 0.2-1.4% of thickener, acidic pH regulator and the balance of water, The pH of the impervious slurry is 4.5.

[0040] The...

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PUM

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Abstract

The invention discloses a digital printing technology for worsted cashmere fabrics. The digital printing technology includes the steps of pretreating, digital printing, aging and cleaning drying, wherein the pretreating step includes spraying operation of a rare-earth chloride water solution or roller painting operation of the rare-earth chloride water solution. According to the digital-printing technology for the worsted cashmere fabrics, the rare-earth chloride water solution is subjected to roller painting or sprayed to the semi-dry slurry-film-forming surface, moisture in the water solution and film forming substances in slurry are hydrated, and rare-earth chloride is evenly arranged on a printing surface layer accordingly; as rare-earth positive ions and negative charges on the cashmere-fiber surface are adsorbed, the rare-earth positive ions, cashmere fibers and dye molecules are reacted to form a stable complex, and the dyeing rate and the color fastness can be increased.

Description

technical field [0001] The invention relates to the technical field of textile production, in particular to a digital printing process for worsted cashmere fabrics. Background technique [0002] Worsted woolen fabrics have a smooth, waxy and delicate feel, soft luster, excellent texture, and noble colors after dyeing or printing, and are favored by consumers. Digital inkjet printing has good effects and is green and environmentally friendly. Therefore, it has developed rapidly in the textile printing industry and has been widely used in the printing of cashmere, wool, silk and other high-end fabrics. However, in the actual production of cashmere digital printing, there are still a series of problems such as serious dye bleeding, insufficient clarity and fineness of patterns, low vividness and low color yield. The improved technical scheme adds chitosan to the slurry, and utilizes the electrostatic attraction and antibacterial properties of chitosan to the wool surface, so t...

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): D06P1/44D06P1/673D06P1/38D06P3/14D06P5/30
CPCD06P1/445D06P1/38D06P1/67341D06P3/008D06P3/148D06P5/30
Inventor 陆芳王榴兴陶海燕李冰冰
Owner JIANGSU SUNSHINE GRP CO LTD
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