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Efficient aqueous pigment dispersant

A water-based dispersant and water-based pigment technology, applied in the field of pigment dispersant and ink pigment dispersion, can solve the problems of product batch differences, unstable performance, etc., achieve small environmental hazards, good dispersion effect, and reduce usage Effect

Inactive Publication Date: 2013-03-20
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its high viscosity affects its use during the dispersion process, and due to limited synthesis conditions, product batches vary, resulting in unstable performance

Method used

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  • Efficient aqueous pigment dispersant
  • Efficient aqueous pigment dispersant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0018] Examples 1-5: Dispersion of titanium dioxide by dispersant, the dispersed particle size is shown in Table 1

Embodiment 1

[0020] Dissolve 2g of pigment titanium dioxide and 1g of high-efficiency water-based pigment dispersant in 1L of water, ultrasonically vibrate for 10min, transfer the mixed solution to a circulating sand mill and grind at a speed of 2000r / min for 1.5h.

Embodiment 2

[0022] 2g of pigment titanium dioxide, 0.8g of high-efficiency water-based pigment dispersant were dissolved in 1L of water, ultrasonically oscillated for 10min, and the mixture was transferred to a circulating sand mill and ground at a speed of 1800r / min for 1.5h.

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PUM

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Abstract

The invention relates to an auxiliary agent for a pigment, which is particularly suitable for dispersing the pigment, has good dispersion performance and high stability, and belongs to the field of application of a fine chemistry industry. A dispersant is prepared from fatty alcohol-polyoxyethylene ether, fatty alcohol-polyoxyethylene ether monoester, fatty alcohol-polyoxyethylene ether diester, carboxylated fatty alcohol-polyoxyethylene ether, carboxylated fatty alcohol-polyoxyethylene ether monoester and carboxylated fatty alcohol-polyoxyethylene ether diester. The dispersant is easily and biologically degraded and meets ecological and green and environment-friendly requirements; and a unique molecular chain structure can better disperse the pigment and can keep the pigment stable.

Description

technical field [0001] The invention relates to a pigment dispersant, which is especially suitable for dispersing ink pigments and belongs to the field of fine chemicals. Background technique [0002] As a kind of energy-saving, resource-saving and environment-friendly products, water-based pigments have attracted widespread attention. At present, my country's pigment production has accounted for more than 60% of the world's total, but most of them are low-end products and the commercialization of related pigments has been monopolized by Europe, America, Japan and other regions. The dispersion of the product is the most important in the pigmentation of pigments. Among them, the coloring strength, brilliance of color, hiding power, transparency, gloss, migration resistance and other properties of pigments are closely related to their particle size and distribution. Pigments mainly exist in the form of aggregates, agglomerates or flocs in paints and inks. In order to show th...

Claims

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Application Information

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IPC IPC(8): B01F17/44C09C1/36C09C3/10C09B67/20C09D11/00C09K23/44
Inventor 黄丹顾义师
Owner JIANGNAN UNIV
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