Preparation method for cationic type organic yellow water-based color paste
A water-based color paste, cationic technology, applied in the direction of pigment slurry, etc., can solve the problems of poor stability, low color content, large investment in post-processing, etc., and achieve good storage stability, good compatibility, and high tinting strength Effect
Active Publication Date: 2015-11-18
英德科迪颜料技术有限公司
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Problems solved by technology
[0004] Chinese patent 9812547.0 discloses a preparation method of cationic ink, the dispersant used is a cationic polymer dispersant containing amine oxide type; Polymer is used as cationic dispersant; Chinese patent 03158229.X discloses a preparation method of cationic pigment slurry for anionic electrophoretic coatings, using cationic resin containing urea group and quaternary ammonium base as cationic dispersant; the above cationic polymer dispersant None contain block polymer structure, low pigment content and poor stability in water-based system
The preparation process of the above-mentioned patented color paste is too complicated, and the post-processing investment is large, so it is not suitable for industrial production
Method used
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Embodiment 1
[0017] According to example 1 in table 1, deionized water, propylene glycol, bactericide, wetting agent, cationic polymer dispersant A, pH regulator are stirred evenly with the speed of 500r / min in high-speed disperser, then Add organic yellow pigment PR112 at a high speed of 1000-1200r / min, disperse at high speed for 45min, move to a sand mill and grind 3-4 times until the fineness is qualified, then add thickening and anti-settling agent at 300-500r / min, Defoaming agent, after the defoaming viscosity is qualified, it is filtered and packaged to obtain cationic organic yellow water-based color paste.
Embodiment 2
[0018] Example 2, Example 3, Example 4, and Example 5 Refer to Example 1 for the preparation steps.
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The invention relates to a preparation method for cationic type organic yellow water-based color paste. A basic formula of the cationic type organic yellow water-based color paste consists of the following components in percentage by weight: 20%-45% of deionized water, 3%-10% of propylene glycol, 1%-3% of a wetting agent, 6%-20% of a cationic polymer dispersant, 0.1%-0.8% of a pH regulator, 20%-50% of organic yellow pigment, 0.1%-1.0% of a thickening and anti-settling agent, 0.1%-0.3% of a bactericide, and 0.1%-0.5% of a defoaming agent; and the cationic polymer dispersant is one of an SMA-polyoxyethylene ether-quaternary amine type cationic polymer dispersant or an SMA-polyoxyethylene ether-amide type cationic polymer dispersant. The cationic type organic yellow water-based color paste prepared by the preparation method has the characteristics of good storage stability, high coloring power, good compatibility and the like, and is widely used for textile printing or ink-jet printing ink and coloring of paper-making color paste, water-based electrophoretic paint, water-based paper paint, water-based printing ink, water-based wood lacquer and the like.
Description
technical field [0001] The invention relates to a preparation method of a cationic water-based color paste, in particular to a cationic organic yellow water-based color paste and a preparation method of the color paste. Background technique [0002] Water-based color paste is a coloring material, and its application fields are very wide, including paint, leather, ink, paper, latex, textile and other industries. Most of the water-based colorants currently produced are anionic water-based colorants, which are widely used in the coloring of architectural coating latex paints and water-based industrial coatings. In textile, papermaking, wood, printing ink, printing inkjet, etc., the substrates are fibrous structures, and the surface of these materials has negative charges. For example, when anionic color paste is used, it is easy to cause defects such as color bleeding and low coloring strength. The surface of the cationic water-based color paste is positively charged, which no...
Claims
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IPC IPC(8): C09D17/00
Inventor 许钧强陆明刘敏徐业雄
Owner 英德科迪颜料技术有限公司