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Preparation method of self-adhesive organic pigment microcapsules for pigment printing

An organic pigment and paint printing technology, applied in the directions of organic dyes, dyeing, textiles and papermaking, etc., can solve the problems such as the unpublished problem of organic pigment microcapsules, improve color fastness and hand feel, improve dispersibility and dispersion stability The effect of improving the stability and dispersibility

Active Publication Date: 2009-09-16
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the preparation of organic pigment microcapsules with self-adhesiveness to fabrics by suspension polymerization has not been publicly proposed.

Method used

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  • Preparation method of self-adhesive organic pigment microcapsules for pigment printing
  • Preparation method of self-adhesive organic pigment microcapsules for pigment printing
  • Preparation method of self-adhesive organic pigment microcapsules for pigment printing

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Embodiment 1～9

[0030] According to the feeding ratio shown in Table 1, step (1): Add the organic pigment phthalocyanine green to the reaction mixed monomer A in which the oil-soluble initiator dibenzoyl peroxide is dissolved, stir evenly and then transfer it into In the reactor of the aqueous phase of magnesium hydroxide, high-speed stirring forms a suspension dispersion liquid, and in N 2 After polymerizing for a period of time at a certain temperature in the atmosphere, a suspension dispersion of composite microspheres is formed.

[0031] Step (2): add dropwise reaction monomer B in the dispersion liquid of the composite microsphere that step (1) obtains, in N 2 Polymerization reaction at a certain temperature in the atmosphere for a period of time to end the reaction. That is, a suspension dispersion liquid of organic pigment phthalocyanine green microcapsules is obtained.

[0032] The suspension dispersion obtained in step (2) is cooled at room temperature, pickled, washed with water, ...

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Abstract

The invention discloses a preparation method of self-adhesive organic pigment microcapsules for pigment printing; organic pigment cyanine green, reaction mixed monomer A and oil-soluble evocating agent dibenzoyl peroxide are uniformly dispersed in a water phase with the effect of dispersing agent magnesium hydrate; after polyreaction for 4h in an atmosphere of CN2 at the temperature of 65 DEG C, suspended dispersion liquid of composite microspheres is formed. Then, reaction monomer B is dropped in the dispersion liquid to carry out polyreaction for 3h in an atmosphere of nitrogen at the temperature of 80 DEG C, and organic pigment cyanine green microcapsules are obtained by normal temperature cooling, acid cleaning, water scrubbing, filtering and drying. The prepared cyanine green microcapsules can be directly in physical and chemical combination with fabric without using bonding material in the process of pigment printing, thereby efficiently improving the dry and wet resistance crockfastness of printed fabric and increasing the fabric feeling. The method in the invention has simple technology process but no solvent pollution problem in the process, and the products after simple treatment can be directly applied to pigment printing.

Description

technical field [0001] The invention relates to the preparation of organic pigments in the field of fine chemicals, in particular to a method for preparing organic pigment microcapsules. Background technique [0002] Organic pigments not only have many varieties, complete color spectrum, and bright colors, but also have excellent durability, heat resistance and other application properties, which meet the requirements of high-grade coatings, plastics and high-grade printing inks. Among them, pigment printing occupies an important position in the printing field because of its simple process, convenient operation, cleanness and economy, and it is suitable for printing various fibers and their blended fabrics. [0003] However, due to the low polarity of the surface of the organic pigment, it is difficult to wet and disperse in the water phase, and has no affinity for the fiber, it must be adhered to the surface of the fabric by means of continuous film-forming action of the ad...

Claims

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Application Information

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IPC IPC(8): C09B67/08C08F212/08C08F220/14C08F220/12C08F2/18D06P1/14
Inventor 戚栋明吴明华雷琳杨雷
Owner ZHEJIANG SCI-TECH UNIV
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