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Preparation method of yellow-green pigment for plastic

A yellow-green, pigment technology, applied in the direction of organic dyes, etc., can solve the problems of poor stability of plastic surface pigments, and achieve the effect of good stability and small color difference change.

Inactive Publication Date: 2014-01-01
苏州冰心文化用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem to be solved: poor stability of pigments on plastic surfaces

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] (1) Take 15kg of polyoxypropylene glyceryl ether, put it in a constant temperature container, and heat it to 55°C; (2) Grind Pigment Yellow 181 powder and Pigment Yellow 183 powder to 1um with a grinder; (3) Take the powder after grinding Pigment Yellow 181 powder is 3kg, and Pigment Yellow 183 powder is 4kg, which are sequentially added to polyoxypropylene glyceryl ether and stirred evenly with a stirrer; (4) Add 8kg of iron oxide green powder to the constant temperature container and stir evenly; (5 ) Finally, add 7 kg of sodium carboxymethyl cellulose to the container, and mix all the above ingredients evenly; (6) Homogenize the pigment with a homogenizer after mixing evenly, with a homogenization pressure of 20Mpa and a homogenization time of 20 minutes.

Embodiment 2

[0009] (1) Take 12kg of polyoxypropylene glyceryl ether, put it in a constant temperature container, and heat the temperature to 55°C; (2) Grind Pigment Yellow 181 powder and Pigment Yellow 183 powder to 0.5um with a grinder; (3) Take the grinder Finally, 4kg of pigment yellow 181 powder and 5kg of pigment yellow 183 powder were added to polyoxypropylene glyceryl ether in turn, and stirred evenly with a stirrer; (4) 7kg of iron oxide green powder was added to the constant temperature container, and stirred evenly; ( 5) Finally, add 6 kg of sodium carboxymethyl cellulose to the container, and mix all the above ingredients evenly; (6) Homogenize the pigment with a homogenizer after mixing evenly, with a homogenization pressure of 25Mpa and a homogenization time of 20 minutes .

Embodiment 3

[0011] (1) Take 13kg of polyoxypropylene glyceryl ether, put it into a constant temperature container, and heat the temperature to 55°C; (2) Grind Pigment Yellow 181 powder and Pigment Yellow 183 powder to 1um with a grinder; (3) Take the powder after grinding Pigment Yellow 181 powder is 3kg, and Pigment Yellow 183 powder is 4kg, which are sequentially added to polyoxypropylene glyceryl ether and stirred evenly with a stirrer; (4) Add 8kg of iron oxide green powder to the constant temperature container and stir evenly; (5 ) Finally, add 5kg of sodium carboxymethylcellulose to the container, and mix all the above ingredients evenly; (6) Homogenize the pigment with a homogenizer after mixing evenly, with a homogenization pressure of 20Mpa and a homogenization time of 20min.

[0012] The pigments prepared in Example 1, Example 2, and Example 3 were coated on the surface of PVC plastic, and placed at room temperature for 6 months. The change in color difference of the pigments wa...

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PUM

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Abstract

The invention relates to a preparation method of yellow-green pigment for plastic. The preparation method comprises the following steps: (1) putting 12-15 parts of polyoxypropylene glycerol ether into a constant-temperature container, and heating to 55 DEG C; (2) grinding yellow pigment 181 powder and yellow pigment 183 powder into 0.5-1 micron by a grinding miller; (3) orderly adding 3-4 parts of grinded yellow pigment 181 powder and 4-5 parts of grinded yellow pigment 183 powder to the polyoxypropylene glycerol ether, and evenly stirring by a stirrer; (4) adding 7-8 parts of ferric oxide green powder to the constant-temperature container to evenly stir; (5) finally adding 5-7 parts of sodium carboxymethylcellulose to the container, and evenly mixing all ingredients; (6) homogenizing the evenly mixed pigment by a homogenizer, wherein the homogenizing pressure is 20-25 MPa, and the homogenizing time is 20 minutes. The prepared yellow-green pigment can be applied to the plastic, and has excellent color stability.

Description

technical field [0001] The invention relates to a preparation method of a pigment, in particular to a preparation method of a yellow-green pigment for plastics. Background technique [0002] Plastics also need to use pigments. After adding pigments to plastics, due to the particle size of the pigment itself and the performance of the pigment itself, there are many problems in the use of the pigment on the surface of the plastic, such as too large particles, resulting in The appearance of the pigment looks rough and inferior. At the same time, due to the pigment composition, the pigment does not have good stability after being coated on the plastic surface. These reasons restrict the application of related pigments on the plastic surface. We need to use some Methods to overcome the above difficulties and expand the utilization space of pigments. Contents of the invention [0003] The technical problem to be solved: the poor stability of the pigment on the plastic surface. ...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/20
Inventor 李小福
Owner 苏州冰心文化用品有限公司
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