Urea-free ink-jet printing pretreatment solution suitable for wool fabric and pretreatment method

A pretreatment liquid, inkjet printing technology, applied in dyeing, textile and papermaking, etc., can solve problems such as unfavorable ecological environment protection, sharp increase in water ammonia nitrogen index and water eutrophication, etc. Vibrant colors and the effect of suppressing excessive bleeding

Inactive Publication Date: 2020-08-07
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of urea leads to the discharge of sewage from the washing process of printed fabrics, resulting in a sharp increase in the ammonia nitrogen index of the water body and serious eutrophication of the water body, which is not conducive to ecological protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] A urea-free ink-jet printing pretreatment solution suitable for wool fabrics, comprising the following components in mass percent: 1.5% carboxymethyl hydroxypropyl cellulose, 1% octadecyltrimethylammonium chloride, 2% ammonium sulfate, 2% 2-methyl-4-isothiazolin-3-one, 1% sodium hexametaphosphate, 0.5% sodium m-nitrobenzenesulfonate, 92% water, pretreatment solution The pH is around 6.0.

[0067] Pretreatment method: firstly mix the components uniformly to obtain a pretreatment solution, then apply the pretreatment solution to the surface of the wool fabric by padding, the fabric has a liquid rate of 75%, and then dry until the fabric contains water The rate is 15%.

Embodiment 2

[0069] A urea-free ink-jet printing pretreatment solution suitable for wool fabrics, comprising the following components in mass percent: 1.5% carboxymethyl hydroxypropyl cellulose, 1% octadecyltrimethylammonium chloride, 2% ammonium sulfate, 95.5% water, the pH of the pretreatment solution is about 6.0.

[0070] Pretreatment method: firstly mix the components uniformly to obtain a pretreatment solution, then apply the pretreatment solution to the surface of the wool fabric by padding, the fabric has a liquid rate of 75%, and then dry until the fabric contains water The rate is 15%.

Embodiment 3～6

[0084] The only difference from Example 1 is that the mass concentration of carboxymethyl hydroxypropyl cellulose in Examples 3-6 is different from that of Example 1, being 0.5%, 1.0%, 2.0% and 2.5% respectively.

[0085] The pretreated woolen fabrics in Examples 3-6 were ink-jet printed with cyan reactive dye ink, and the performance of ink-jet printing was measured. The results are shown in Table 1 and Table 2.

[0086] Table 3 Effect of pretreatment on color performance of wool fabric reactive dye inkjet printing

[0087] the fabric L* a* b* C* h° K / S value Example 3 44.9 -30.7 -23.1 38.7 217.9 23.6 Example 4 44.2 -30.9 -23.2 38.9 218.3 24.3 Example 5 43.9 -31.2 -23.1 39.0 218.9 24.5 Example 6 43.7 -30.8 -23.6 39.3 218.8 24.8

[0088] As can be seen from Table 3, compared with the untreated fabric of Comparative Example 1 in Table 1, the inkjet printing color performance of the wool fabric after inkjet printing...

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PUM

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Abstract

The invention relates to a urea-free ink-jet printing pretreatment solution suitable for a wool fabric and a pretreatment method. The pretreatment solution comprises the following components of, in percentage by mass, 0.5% - 3% of a polymer, 0.5% - 2% of a quaternary ammonium salt type cationic surfactant, 0.1% - 4% of a pH adjusting agent, and the balance water. The pretreatment solution is applied to the surface of the wool fabric through a padding or coating method to obtain a pretreated fabric with the solution carrying rate of 60% - 100%. The ink-jet printed wool fabric prepared by the ink-jet printing pretreatment is high in apparent color yield, good in definition and brighter in color.

Description

technical field [0001] The invention belongs to the technical field of textile inkjet printing, and in particular relates to a urea-free inkjet printing pretreatment solution and a pretreatment method suitable for wool fabrics. Background technique [0002] Wool fiber is mainly composed of an outer scale layer and an inner cortex layer, and is a natural protein fiber. Because of its soft feel, excellent moisture absorption and warmth retention, it is very popular among consumers. [0003] However, due to the complex traditional printing process and the high cost of small batch production, the proportion of wool printed fabrics on the market is very small. The textile inkjet printing technology that can achieve high definition, small batch production and low energy consumption has brought opportunities for wool printed textiles. Unlike traditional printing, inkjet printing patterns are formed by mixing ink droplets sprayed on the surface of the fabric. However, pretreatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/30D06P1/50D06P1/48D06P1/66D06P1/647D06P1/651D06P1/673D06P1/642D06P1/62D06P3/14
CPCD06P1/48D06P1/50D06P1/628D06P1/6426D06P1/647D06P1/65118D06P1/66D06P1/67366D06P3/14D06P5/30
Inventor 房宽峻安芳芳刘秀明李畅梁迎超刘昊
Owner TIANJIN POLYTECHNIC UNIV
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