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Colored polymer microsphere ink for inkjet printing

An inkjet printing and polymer technology, applied in application, ink, dyeing, etc., can solve problems such as troublesome application, reduced ink fluency, unsuitable addition, etc., achieve good optical properties, increase Coulomb repulsion, and good dispersion stability and storage stability effects

Inactive Publication Date: 2016-04-20
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For colored polymer microsphere inks for textiles, it is not advisable to add polymer dispersants and a large amount of surfactants, because polymer dispersants tend to produce a "bridge effect" between microspheres to cause microspheres to aggregate, and a large amount of surfactants It is easy to be adsorbed on the surface of microspheres, which affects the properties of functional groups on the surface of microspheres. At the same time, it is easy to generate a large number of air bubbles, which reduces the fluency of ink jetting and causes new troubles for subsequent applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] red ink preparation

[0017] Take 2.5 g of poly(styrene-butyl acrylate-acrylic acid) microspheres with a glass transition temperature of 90 °C dyed with C.I. Disperse Red 60, 1 g of sodium edetate, 1 g of sodium nitrilotriacetate, 1 g of ethylene glycol and Glycerin mixture, 0.05g acetylene glycol non-ionic surfactant and 44.45g deionized water were mixed uniformly under magnetic stirring, and the pH was adjusted to 9, and ultrasonic pulverizer was used for 60 minutes at a power of 60 watts, and 0.5~1μm The red polymer microsphere inkjet ink was obtained by filtration through a microporous membrane.

[0018] The finally prepared red polymer microsphere ink had a viscosity of 1.7 cP at 25° C., a surface tension of 40 mN / m, an electrical conductivity of 781 μS / cm, and a pH of 9.

[0019] After ink-jet printing on cationic modified cotton woven fabric, it was baked at 150°C for 5 minutes, the dry rubbing fastness was 4~5 grades, and the wet rubbing fastness was 3~4 grades. ...

Embodiment 2

[0021] yellow ink preparation

[0022] Take 5g of poly(styrene-butyl acrylate-acrylic acid) microspheres with a glass transition temperature of 120°C dyed with C.I. Disperse Yellow 114, 1g of sodium tartrate, 4g of sodium citrate, 2g of glycerin, and 0.1g of acetylene glycol non-ionic surface The active agent and 37.9g ​​of deionized water were evenly mixed under magnetic stirring, and the pH was adjusted to 7. The ultrasonic pulverizer was used to ultrasonicate for 40 minutes at a power of 100 watts, and the yellow polymer microsphere spray was obtained by filtering with a 0.5-1 μm microporous membrane. Ink ink.

[0023] The finally formulated yellow polymer microsphere ink had a viscosity of 4.3 cP at 25° C., a surface tension of 33 mN / m, an electrical conductivity of 1300 μS / cm, and a pH of 7.

[0024] After ink-jet printing on cationic modified cotton woven fabric, it was baked at 150°C for 5 minutes, the dry rubbing fastness was 4~5 grades, and the wet rubbing fastness w...

Embodiment 3

[0026] blue ink preparation

[0027] Take 7.5g of poly(styrene-butyl acrylate-methacrylic acid) microspheres dyed with C.I. Disperse Blue 60 with a glass transition temperature of 70°C, 1g of potassium tartrate, 4g of sodium nitrilotriacetate, 2g of sodium citrate, 3g Glycerin and 1,2-propanediol mixture, 0.2g acetylene glycol non-ionic surfactant and 32.3g deionized water were mixed evenly under magnetic stirring, and the pH was adjusted to 8, and ultrasonic pulverizer was used for 30 minutes at a power of 200 watts , using a 0.5-1 μm microporous membrane to filter to obtain a blue polymer microsphere inkjet ink.

[0028] The finally prepared blue polymer microsphere ink had a viscosity of 8.9 cP at 25° C., a surface tension of 30 mN / m, an electrical conductivity of 900 μS / cm, and a pH of 7.

[0029] After ink-jet printing on cationic modified cotton woven fabric, it was baked at 150°C for 5 minutes, the dry rubbing fastness was 4~5 grades, and the wet rubbing fastness was 4...

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Abstract

The invention relates to a colored polymer microsphere ink for inkjet printing, which is composed of the following components in percentage by weight: 1-20% of colored polymer microsphere, 1-20% of polycarboxylate compound, 1-10% of polylol, 0.1-1% of alkynyl glycol nonionic surfactant and 50-90% of deionized water. The preparation method comprises the following steps: carrying out dispersion treatment, uniformly mixing, regulating the pH value to 6-9, and filtering with a microfiltration membrane. The viscosity of the ink at 25 DEG C is 1.5-13.0cp, the surface tension is 25-40mN / m, and the electric conductivity is 300-4000 mu S / cm. The colored polymer microsphere ink for inkjet printing has the advantages of proper physiochemical properties, higher smoothness, higher dispersion stability and higher storage stability on the premise of protecting the properties of the functional groups on the surface of the colored polymer microspheres from being influenced; the microspheres can be uniformly arranged on the surface of the cationic modified fabric; and after being baked at the temperature of higher than the microsphere glass transition temperature, the polymer microspheres can form a uniform film on the fiber surface and can be attached to the fiber surface, so that the ink has higher color fastness.

Description

technical field [0001] The invention relates to a colored polymer microsphere ink for inkjet printing, which belongs to the technical field of polymer functional materials and textile printing and dyeing. Background technique [0002] Digital inkjet printing is to input the required pattern into the computer through various input means (scanner, digital camera, etc.), and after editing and processing by the computer printing color separation and drafting system (CAD), the computer controls the nozzle to directly spray the ink Patterns are formed on various fabrics, and after treatment, textiles with high-precision patterns are obtained. Digital inkjet printing has high printing precision, can realize personalized e-commerce consumption through the Internet, can quickly respond to fashion trends, and does not need plate making, and the batch size is flexible, which meets the market demand for small batches, multiple varieties, and fast delivery. In addition, the waste and wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30C09D11/328C09D11/38D06P1/16D06P1/52D06P3/60D06P3/54D06P5/30
CPCC09D11/30C09D11/328C09D11/38D06P1/16D06P1/5257D06P3/54D06P3/6033D06P5/30
Inventor 房宽峻宋亚伟蔡玉青
Owner QINGDAO UNIV
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