A kind of preparation technology of phthalocyanine blue 15:2 pigment for automobile coating
A preparation process, a technology for phthalocyanine blue, which is applied to coatings, organic dyes, etc., can solve problems such as unevenness, flocculation, crystallization, and fading, and achieve the effect of simplifying process steps, improving preparation efficiency, and resisting crystallization.
Active Publication Date: 2019-03-08
美利达颜料工业有限公司
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Problems solved by technology
[0002] The phthalocyanine blue 15:2 pigment in the prior art has many shortcomings in application, especially its application in automotive coatings, which is prone to flocculation and crystallization, and the sprayed paint surface is prone to blooming. Fading, paint cracking or uneven color are very easy to occur. In response to the above phenomena, related industries have begun to develop anti-crystallization, anti-flocculation, and light-resistant and weather-resistant phthalocyanine blue 15:2 pigments, but none of the existing technologies is relatively mature. And the production method with significantly improved product use effect, the selection of derivatives required in the existing preparation process, the amount of addition and the way of addition are still not well resolved
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] The invention relates to a preparation process of a phthalocyanine blue 15:2 pigment for automotive coatings. The process uses the phthalocyanine blue 15:1 pigment to prepare anti-crystallization and deflocculation phthalocyanine blue 15:2 pigments, and is applied in automotive coatings Firstly, the crude copper phthalocyanine is used to prepare anti-crystallization activated copper phthalocyanine, then the anti-crystallization phthalocyanine blue 15:1 pigment is prepared, and finally the anti-crystallization and deflocculation phthalocyanine blue 15:2 pigment is obtained.
[0019] In a specific embodiment, the production raw materials include copper phthalocyanine crude product, copper phthalocyanine derivative and pigment stabilizer. The purity of the copper phthalocyanine crude product is greater than 98%, and the particle size is 10-200 μm. The copper phthalocyanine derivative is selected from the Solsperse series, and the pigment is stable. The agent is benzenes, al...
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Abstract
The invention relates to a preparation process of a phthalocyanine blue 15:2 pigment for automotive paint and belongs to the technical field of preparation of automotive paint. The preparation process comprises the following steps: firstly, adding a copper phthalocyanine crude product, a copper phthalocyanine derivative and a pigment stabilizer into a grinding machine, and grinding and activating to prepare crystallization-resisting activated copper phthalocyanine; stirring the crystallization-resisting activated copper phthalocyanine, sulfuric acid and the copper phthalocyanine derivative, diluting, washing with acid, washing with water, washing with alkali and filtering and rinsing to obtain a crystallization-resisting phthalocyanine blue 15:1 pigment filter cake; finally, stirring the crystallization-resisting phthalocyanine blue 15:1 pigment filter cake and the copper phthalocyanine derivative to generate paste; pressing and filtering the paste to obtain a filter cake; finally, spraying and drying the filter cake by utilizing a spraying dryer; finally, preparing the crystallization-resisting and flocculation-resisting phthalocyanine blue 15:2 pigment. The pigment is applied to the automotive paint so that crystals formed by the paint and flocculated and agglomerated particles formed by the paint can be prevented; uniform color and luster of the automotive paint are easy to form.
Description
technical field [0001] The invention belongs to the technical field of phthalocyanine pigment production, and in particular relates to a preparation process of phthalocyanine blue 15:2 pigment for automobile coatings. Background technique [0002] The phthalocyanine blue 15:2 pigment in the prior art has many shortcomings in application, especially its application in automotive coatings, which is prone to flocculation and crystallization, and the sprayed paint surface is prone to blooming. Fading, paint cracking or uneven color are very easy to occur. In response to the above phenomena, related industries have begun to develop anti-crystallization, anti-flocculation, and light-resistant and weather-resistant phthalocyanine blue 15:2 pigments, but none of the existing technologies is relatively mature. And the production method with significantly improved product use effect, the selection, addition amount and addition method of the derivatives required in the existing prepara...
Claims
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IPC IPC(8): C09B67/50C09B67/04C09D7/40
CPCC09B67/0002C09B67/0026C09B67/0032C09D7/63
Inventor 李庆豹郑进峰王西元
Owner 美利达颜料工业有限公司