Blue pigment with characteristics of light resistance and weathering resistance
A blue pigment and weather resistance technology, applied in the direction of pigment paste, etc., can solve the problems of poor light resistance and weather resistance of ordinary pigments, and achieve the effect of good light resistance and weather resistance, small color difference change, and good weather resistance effect.
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Embodiment 1
[0007] Weigh 12kg of phthalocyanine blue, 17kg of sweet potato starch, 12kg of glycerin, 5kg of Span 85, 7kg of propyl butyrate, 3kg of polyoxypropylene glyceryl ether, and 20kg of water. Mix all the above ingredients and stir evenly with a stirring paddle at a speed of 100 rpm for 40 min. After the stirring is finished, the blue pigment of the present invention is prepared.
Embodiment 2
[0009] Example 2 The product preparation method is the same as in Example 1, and the weight of the specific components is as follows: phthalocyanine blue is 20kg, sweet potato starch is 11kg, glycerin is 5kg, Span 85 is 6kg, propyl butyrate is 3kg, polyoxypropylene glyceryl ether is 6kg , Water is 10kg.
Embodiment 3
[0011] Example 3 The product preparation method is the same as in Example 1, and the weight of the specific components is as follows: phthalocyanine blue is 16kg, sweet potato starch is 14kg, glycerin is 8kg, Span 85 is 8kg, propyl butyrate is 5kg, polyoxypropylene glyceryl ether is 5kg , Water is 15kg.
[0012] Light and weather resistance test:
[0013] The light fastness test method is the GB1710-79 standard, in which the natural sunlight exposure method is selected. The product grades of Example 1, Example 2, and Example 3 are 6, 6, and 7 respectively, and have good light fastness. The pigments prepared in Example 1, Example 2, and Example 3 were evenly applied to the stainless steel surface and then subjected to a weather resistance test. High temperature test: The test temperature is 70°C and the time is 6 hours. The water shower test is also 6 hours, and the high temperature test and the water shower test are cycled alternately, and the number of cycles is 40 times. ...
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