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Water-based polymer pigment dispersant and leather cationic pigment paste prepared from same

A water-based polymer and pigment dispersant technology, which is applied in transportation and packaging, dyeing, textiles and papermaking, etc., can solve the problems of easy migration and compound compatibility, low tinting strength and hiding power, poor fineness stability, etc. , to achieve the effect of ensuring storage stability, avoiding water separation and precipitation, and improving production efficiency

Active Publication Date: 2010-09-29
成都达威化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the disadvantages of using low-molecular cationic surfactants as dispersing and wetting agents in the existing cationic pigment paste production technology, the fineness of the pigment paste is relatively coarse, the fineness stability is poor, easy to migrate, and the compound compatibility is not good. One purpose is to provide a water-based polymer pigment dispersant and its preparation method, which is applicable to the dispersion of various organic and inorganic pigments required by the industry. Another purpose of the present invention is to provide a cationic pigment paste for leather to solve the current The technical leather cationic pigment paste has poor fineness stability, low tinting strength and hiding power, etc.

Method used

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  • Water-based polymer pigment dispersant and leather cationic pigment paste prepared from same
  • Water-based polymer pigment dispersant and leather cationic pigment paste prepared from same
  • Water-based polymer pigment dispersant and leather cationic pigment paste prepared from same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Formula: (below in parts by weight)

[0043] ①Methacryloxyethyltrimethylammonium chloride (80%) 35

[0044] ② Methyl acrylate 30

[0045] ③Triphenylethylphenol polyoxyethylene ether (17) methacrylate (60%) 90

[0046] ④Methacrylamide 10

[0047] ⑤Lauryl ammonium bromide 1.5

[0048] ⑥ Fatty alcohol polyoxyethylene ether (EO=7) 0.5

[0049] ⑦2,2'-Azo(2-mimidylpropane)dihydrochloride (V 50) 1.8

[0050] ⑧Dodecanethiol 1.5

[0051] ⑨tert-butyl hydroperoxide 0.5

[0052] ⑩Ascorbic acid 0.5

[0053] water 305

[0054] Process:

[0055] 1. Add 0.5 parts of ⑤, 0.3 parts of ⑦ and 105 parts of water in the raw material components of the above formula into the reaction kettle to mix and dissolve;

[0056] 2. Add 160 parts of ①, ②, ③, ④, ⑤, ⑥, ⑦, ⑧ and water in the raw material components of the above formula to dissolve and pre-emulsify for about 30 minutes;

[0057] 3. Heat the water bath of the reactor to about 80°C, and add one-fifth of the above pre-emulsified liqu...

Embodiment 2

[0063] Formula: (below in parts by weight)

[0064] ①Methacryloxyethyltrimethylammonium chloride (80%) 40

[0065] ②Butyl Acrylate 30

[0066] ③Triphenylethylphenol polyoxyethylene ether (17) methacrylate (60%) 90

[0067] ④Acrylamide 10

[0068] ⑤Lauryl ammonium chloride 2

[0069] ⑥2,2'-Azo(2-mimidylpropane)dihydrochloride (V 50) 1.8

[0070] ⑦Mercaptoethanol 1.5

[0071] ⑧tert-butyl hydroperoxide 0.5

[0072] ⑨Ascorbic acid 0.5

[0073] ⑩ water 305

[0074] Process:

[0075] 1. Add 0.2 parts of ⑤, 0.2 parts of ⑥ and 105 parts of water in the raw material components of the above formula into the reactor to mix and dissolve;

[0076] 2. Add 160 parts of ①, ②, ③, ④, ⑤, ⑥, ⑦ and water in the raw material components of the above formula to dissolve and pre-emulsify for about 30 minutes;

[0077] 3. Heat the water bath of the reactor to about 82°C, and add a quarter of the above pre-emulsified liquid into the reactor for reaction;

[0078] 4. After the blue light appea...

Embodiment 3

[0115] Recipe: the following is the weight percentage

[0116] Polymer dispersant 4%

[0117] Wetting agent S-9 (Dow) 0.5%

[0118] Preservative A28 (Shumei) 0.1%

[0119] Defoamer K3 (Digo) 0.1%

[0120] F5RK (Lily) 12%

[0121] HY100000HP (Shin-Etsu Hydroxyethyl Cellulose) 1%

[0122] VISCOPLUS 3300 (Teco) 2%

[0123] Triethylamine 0-0.5%

[0124] The remainder consists of water balanced to 100%.

[0125] Process:

[0126] 1. Put the polymer dispersant, F5RK, S-9, HY100000HP and water of the raw materials of the above formula 2 into the dispersion kettle, and pre-disperse for 60 minutes;

[0127] 2. Use a horizontal sand mill to grind 2-3 times, use a laser particle size analyzer to detect the fineness, and stop grinding when the average particle size is equal to 0.6-0.8 microns;

[0128] 3. After grinding, the material is transferred to the compounding kettle, add preservative A28 and defoamer K3 to defoam, use thickener 3300 to adjust the viscosity to 3000-4000mpa...

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Abstract

In the invention, acrylates, acrylate derivatives and functional unsaturated monomers are used for synthesizing and developing a new water-based cationic polymer dispersant; and the dispersant is used for preparing a series of water-based superfine cationic pigment paste with the same dispersion system for leathers, and the average particle diameter reaches 0.3-1.0 micrometer; The cationic pigment paste can be used for coating leathers to enable the leathers to have soft hand feeling, good covering power and bright color. The weight-average molecular weight of the polymer dispersant is about 5000-50000, and the polymer dispersant has cationic characteristics and is suitable for dispersing various common pigments in the leather industry.

Description

1. Technical field [0001] The invention relates to a new polymer pigment dispersant with cationic and nonionic side chains, lipophilic side chains and main chains, and also relates to a series of water-based superfine cationic pigment pastes for leather with the same dispersion system prepared by using the dispersant. 2. Background technology [0002] Leather pigment paste is a coloring agent for finishing, which is a paste made by mixing and grinding various functional additives such as pigments, dispersants, wetting agents, and thickeners. Cationic pigment paste and cationic film-forming agent are used for leather back cover coating, which can form a good seal on the leather surface, improve hiding power, and prevent excessive penetration of subsequent anionic coating materials, improve leather grades and improve hand feeling, etc., and are widely used High-grade leather finishing back cover process. [0003] Traditional cationic pigment pastes are generally produced with...

Claims

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Application Information

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IPC IPC(8): C08F290/06C08F220/34C08F220/14C08F220/56C08F220/18C08F2/24B01F17/52B01F17/44B01F17/22B01F17/18D06P1/607D06P3/32C09K23/18C09K23/22C09K23/44C09K23/52
Inventor 杨斯盛严建林蔡明芦燕
Owner 成都达威化工科技有限公司
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