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a printing method

A printing method and printing technology, applied in the field of fabric printing, can solve the problems of rising overall cost of color paste, high concentration of sodium alginate, high viscosity of color paste, etc.

Inactive Publication Date: 2018-07-24
东莞信望纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that when the color paste is used for dyeing, the concentration of sodium alginate in the color paste is too high, which causes the viscosity of the color paste to be too large and the overall cost of the color paste increases.

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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Embodiment 1

[0037] The present embodiment provides a kind of printing method, comprises the steps:

[0038] S1: Use sodium alginate raw paste to smear the reverse side of the fabric to be printed, and the mass fraction of sodium alginate in the sodium alginate raw paste is 2%-4%;

[0039] S2: Printing the fabric with color paste.

[0040] After the reverse side of the fabric is coated with paste, the paste penetrates into the capillary inside the fabric from the reverse side. During printing, the color paste seepage caused by the capillary effect of the fabric will be greatly reduced. At the same time, the paste on the reverse side has a certain adsorption capacity, which improves The color yield of the fabric deepens the color of the reverse pattern after printing.

[0041] The color paste contains reactive dyes and sodium alginate raw paste for dyeing. Sodium alginate raw paste is an essential part of the color paste. Its function is to enhance the viscosity of the color paste. After t...

Embodiment 2

[0061] Made on the basis of Example 1 in the present embodiment, described printing method also comprises the step of preparing the former paste of sodium alginate: anhydrous sodium carbonate powder is dissolved in soft water, and the temperature of wherein said soft water is 40-50°C; stir and dissolve the sodium alginate powder into soft water containing sodium carbonate powder, so that the sodium alginate powder is a uniform, lump-free sodium alginate raw paste; let the sodium alginate raw paste stand , to make it fully expanded. The sodium alginate raw paste prepared by the above method has good viscosity and mixing degree.

[0062] At the same time, the printing method also includes the step of preparing a color paste: adjusting the reactive dye into a dye solution with soft water, adding a mixed solution of dissolved urea and resist salt S, adding hot water to fully dissolve the reactive dye; and then Filter the fully dissolved reactive dye into the sodium alginate raw p...

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Abstract

The invention provides a printing method, comprising the steps of S1, coating the back of a part, to be printed, of cloth by using sodium alginate paste, wherein sodium alginate is 2-4% by weight of the sodium alginate paste; S2, printing the cloth with a color paste. After the back of the cloth is coated, the paste permeates from the back into capillaries of the cloth; in printing, color paste bleeding action due to the capillary effect of cloth is greatly relieved; the paste applied to the back has certain adsorbing capacity, color yield of the cloth is increased, and the back pattern printed has deeper color accordingly.

Description

technical field [0001] The invention relates to the technical field of fabric printing and dyeing, in particular to a fabric printing method. Background technique [0002] Printing belongs to local dyeing, mainly through dyes or paints to form patterns on fabrics, so as to achieve the purpose of beauty. [0003] At present, there are two major problems in the direct printing production of reactive dyes: [0004] One is the washing problem of printing screen. Due to the requirements of the pattern printing effect, the color paste used in the printing process needs to be added with paste. Paste refers to a polymer compound that can be added to the printing color paste to thicken. In the prior art, alginic acid is often used Sodium paste, sodium alginate prevents the color from spreading around. However, the viscosity of sodium alginate is relatively high. After the printing is completed, the color paste is easy to adhere to the screen during the washing process of the scree...

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 Patents(China)
IPC IPC(8): D06P1/38D06P1/48D06P5/00D06P5/02
CPCD06P1/38D06P1/48D06P5/002D06P5/02
Inventor 楚久英
Owner 东莞信望纺织有限公司