Black color paste for printing denim fabric

A denim and printing technology, which is applied in the field of clothing, can solve the problems of inability to bond fibers on the cloth surface, shedding of the glue film, and low color fastness, and achieve the effects of good dip-dyeing ability, improved adhesion, and improved bonding strength

Inactive Publication Date: 2018-10-09
吴文广
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common denim printing paste commonly used now is water-based printing paste, which can be printed on non-coated denim to obtain good color fastness, but if ordinary denim printing paste is used on coated denim Printing, because of the waterproof coating of coated denim, ordinary denim printing glue cannot be bonded to the cloth surface fibers, and the printed glue film of denim clothing will fall off in large areas after washing, stone grinding, etc. Fastness is extremely low

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] The black color paste for denim printing provided in this embodiment includes the following components in parts by weight: 13 parts of carbon powder; 25 parts of 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexylcarboxylate; 30 parts of urea; 3 parts of N-alkyl betaine, 1 part of polyurethane thickener.

[0018] The sample was rubbed in a straight line reciprocatingly with the rubbing head, and the number of rubbing times when the dye film layer fell off was calculated. The results are shown in Table 1.

[0019] Size of friction head: rectangle 19mm×25mm; vertical pressure of friction head: 9N; stroke: 100mm; friction speed: 60 times / min; denim specification: 200mm×50mm.

Embodiment 2

[0021] The black color paste for denim printing provided in this embodiment includes the following components in parts by weight: 10 parts of carbon powder; 30 parts of 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexylcarboxylate; 20 parts of urea; 1 part of N-alkyl betaine, 1 part of polyurethane thickener.

[0022] The sample was rubbed in a straight line reciprocatingly with the rubbing head, and the number of rubbing times when the dye film layer fell off was calculated. The results are shown in Table 1.

[0023] Size of friction head: rectangle 19mm×25mm; vertical pressure of friction head: 9N; stroke: 100mm; friction speed: 60 times / min; denim specification: 200mm×50mm.

Embodiment 3

[0025] The black color paste for denim printing provided in this embodiment includes the following components in parts by weight: 15 parts of carbon powder; 25 parts of 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexylcarboxylate; 25 parts of urea; 3 parts of N-alkyl betaine, 1 part of polyurethane thickener.

[0026] The sample was rubbed in a straight line reciprocatingly with the rubbing head, and the number of rubbing times when the dye film layer fell off was calculated. The results are shown in Table 1.

[0027] Size of friction head: rectangle 19mm×25mm; vertical pressure of friction head: 9N; stroke: 100mm; friction speed: 60 times / min; denim specification: 200mm×50mm.

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 black color paste for printing a denim fabric. The black color paste comprises the following components: 10-15 parts of carbon powder, 25-30 parts of alicyclic epoxy resin, 20-30 parts of urea, 1-3 parts of N-lauryl betaine, and 1 part of an auxiliary. The N-lauryl betaine is excellent in wettability and can fully wet the carbon powder; the carboxyl anion of the N-laurylbetaine is stably combined with the alicyclic epoxy resin, the alicyclic epoxy resin is combined with the N-lauryl betaine on the surface of the wetted carbon powder, equivalently, the alicyclic epoxyresin is sufficiently coated on the surface of the carbon powder, and the binding strength between the alicyclic epoxy resin and the carbon powder is improved; in addition, the viscosity of the N-lauryl betaine is relatively low, the N-lauryl betaine is combined with the urea to form a solvent system, and the solvent system has a better dip-dyeing property on the denim fabric, so that the adhesive force of a dye on the denim fabric is enhanced.

Description

technical field [0001] The invention belongs to the field of clothing, in particular to a black color paste for denim printing. Background technique [0002] Coated denim is a polymer compound that can form a film evenly coated on the surface of denim, so that the fabric can change its appearance, style or give various functions. In order to meet the hydrophobicity required by the coating, polyacrylate PA coating is often used. Layering agent and / or polyurethane PU coating agent. [0003] The commonly used ordinary denim printing paste is water-based printing paste, which can be printed on uncoated denim to obtain good color fastness, but if ordinary denim printing paste is used on coated denim Printing, because of the existence of the waterproof coating of the coated denim, the ordinary denim printing glue cannot be bonded to the fabric fibers. Fastness is very low. [0004] To sum up, there is an urgent need for a black color paste for denim printing with strong adhesio...

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): D06P1/649D06P1/651D06P1/66D06P1/673D06P1/52
CPCD06P1/5285D06P1/6491D06P1/65125D06P1/66D06P1/673
Inventor 吴文广
Owner 吴文广
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