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Leather nano pigment paste and preparation thereof

A nano-pigment and pigment paste technology, which is applied in the direction of pigment slurry, dyeing method, textile and paper making, etc., can solve the problems of long preparation cycle, high cost and low efficiency, achieve wide application range, improve film-forming performance, and process mature effect

Inactive Publication Date: 2009-04-22
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the preparation cycle is long, the efficiency is low, and the cost is high

Method used

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  • Leather nano pigment paste and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] TiO with a particle size of 50-80nm 2 100g is added into 1897g water, after being uniformly dispersed to form a nano-suspension under a high-shear emulsifier, the pH is adjusted to 7, then 1g of flat plus 0 is added, and the mixture is evenly stirred (the average particle diameter of the suspension detected under a laser particle size instrument is 105.89 nm, Zata potential is 12.68mv); then add 1g of sulfated castor oil, stir evenly, and adjust the pH to 7 again; finally add 1g of compound stabilizer (wherein the content of acrylic resin is 0.2g, and the content of polyurethane is 0.8g), stir Evenly.

Embodiment 2

[0036] TiO with a particle size of 50-80nm 2 300g was added into 1689g of water, after being uniformly dispersed to form a nano-suspension under a high-shear emulsifier, the pH was adjusted to 7.5, then 1g of sodium lauryl sulfate and 2g of sodium hexametaphosphate were added, and stirred evenly (in a laser particle size instrument The average particle diameter of the suspended liquid is 127.38nm, and the Zata potential is 13.55mv); then add 3g of sulfated castor oil, stir evenly, and adjust the pH again to be 7.5; finally add 5g of compound stabilizer (wherein the acrylic resin content is 2g , polyurethane content is 3g), stir well.

Embodiment 3

[0038]Add 100g of ZnO with a particle size of 50-80nm into 1896g of water, disperse evenly under a high-shear emulsifier to form a nano-suspension, adjust the pH to 7, and then add 1g of dodecyltrimethylammonium chloride, Stir evenly (the average particle size of the suspension detected by a laser particle size instrument is 108.09nm, and the Zata potential is 9.32mv); then add 1g of sulfated castor oil and 1g of polyethylene glycol, stir evenly, and adjust the pH to 7 again; finally add 1g of compound stabilizer (wherein the content of acrylic resin is 0.2g, and the content of polyurethane is 0.8g), just stir evenly.

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Abstract

The invention discloses a nanometer pigment plaster for leather, which comprises the following compositions in mass percentage: 5 to 20 percent of inorganic nanometer pigment, 0.05 to 0.5 percent of dispersant, 0.05 to 5 percent of composite stabilizer, 0.05 to 0.5 percent of dispersion stability additive and 74 to 94.85 percent of water. After the pigment plaster is used for coating leather, the diameter of an inhibition ring in an antibacterial mildewproof experiment is between 39 and 45 mm; the chromatism value Delta E before and after ultraviolet accelerated irradiation is between 1.82 and 2.12; and the index of flame retardant oxygen is between 29 and 32 percent. The invention also discloses a method for preparing the nanometer pigment plaster for the leather. The nanometer pigment plaster for the leather has good antibacterial mildewproof performance, ultraviolet irradiation resistant performance, flame retardant performance and the like, has wide use range, can be used in leather coating and can be used in paint and other industries.

Description

technical field [0001] The invention belongs to the technical field of leather pigment paste and its preparation method, and in particular relates to a leather nano pigment paste and a method thereof. Background technique [0002] As a leather coloring material, pigment paste is widely used in the finishing process of various leathers. It is mainly composed of inorganic pigments, organic pigments or organic dyes as the coloring matrix, and is prepared by adding adhesives, dispersants, plasticizers, etc. When used It can be mixed with resin film-forming agent to form a finishing paste, which can be used for the bottom and middle layers of various leathers (Li Yuntao, Chen Junzhi. Preparation of a new type of casein-free pigment paste [J]. Journal of Jinan University, 2006, 27 (5) 729 ~732). But the role of common pigment paste in leather coating is only to cover the slight defect and the background color of leather on the leather surface, to give leather coating various colo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00D06P3/32D06P1/44
Inventor 陈武勇赵鹏翔赵长青夏燕
Owner SICHUAN UNIV
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