Title:
METHOD FOR PREPARING LAKE PIGMENT, LAKE PIGMENT AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/052659
Kind Code:
A1
Abstract:
Provided are a method for preparing a lake pigment, a lake pigment and the use thereof, which belong to the technical field of lake pigments. The method for preparing a lake pigment involves adding a solution containing at least two metal ions to an acidic aqueous solution containing a pigment raw material, reacting same to obtain solution A, further adding a chelating agent solution to the solution A, and carrying out a chelation reaction at a pH of 6-8 to obtain the lake pigment. The preparation method is simple in process and convenient in operation, and the prepared lake pigment has a small particle size, a high coloring property, and an excellent heat stability, acid and alkali resistance and light resistance, thereby broadening the scope of application of the lake pigment, and solving the technical problems of lake pigments prepared by using existing preparation methods having a larger particle size, a low coloring property, limited applications, and none of the light resistance, acid and alkali resistance, heat resistance, etc., thereof being ideal. Also provided is a lake pigment prepared by using the preparation method. Also provided is the use of the lake pigment in dyes, printing inks, pigments, inks, medicines, cosmetics or foods.
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Inventors:
HSIEH YIHUNG (CN)
LIU YUANYUAN (CN)
LIU YUANYUAN (CN)
Application Number:
PCT/CN2019/105740
Publication Date:
March 19, 2020
Filing Date:
September 12, 2019
Export Citation:
Assignee:
MELEPHANT SUSTAINABILITY TECH HANGZHOU CO LTD (CN)
International Classes:
C09B63/00
Foreign References:
| CN109021615A | 2018-12-18 | |||
| CN101475756A | 2009-07-08 | |||
| CN102318833A | 2012-01-18 | |||
| CN1884389A | 2006-12-27 | |||
| CN1952018A | 2007-04-25 | |||
| CN1515183A | 2004-07-28 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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