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how to solve color masterbatch process questions?

[2019-12-24 09:39:33]

 Because the dispersibility and colorability of color masterbatch are very good, when the color dispersionis uneven, it will directly affect the appearance and color of our products. If the coloring is not good, we usually use masterbatch to fill, but this will increase our cost.

Because the existence of Color Masterbatch will have a great impact on our products, there are certain requirements in the selection
Main points of compatibility of pigment with resin and various auxiliaries
Pigment can't react with resin and all kinds of auxiliaries. It has strong solvent resistance, small migration and good heat resistance. In other words, the color masterbatch can not participate in various chemical reactions. Due to the high processing temperature of plastic products, the color should not decompose and change color under the heating temperature. Generally, inorganic pigments have better heat resistance, while organic pigments and dyes have poor heat resistance, which should be paid enough attention to when choosing the color variety.
At present, China's market is a market with advanced technology and fierce competition. Almost all of the world's leading products have landed in the Chinese market, including Clariant, PolyOne, Schulman, Cabot plastics and daninichiseika.
The color masterbatch used in the color masterbatch requires that the mixing proportion between the color masterbatch and plastic raw materials and additives should be appropriate, otherwise the color masterbatch produced may not meet the requirements.
Problems in chemical reaction of Color Masterbatch, resin and various auxiliaries
The color masterbatch with good dispersibility and coloring power shall be selected for purchasing. Generally speaking, the smaller the particle size of the color masterbatch, the better the dispersion of the color masterbatch, and the stronger the coloring power. The dispersibility of the color masterbatch is good.
There should be no chemical reaction when the color masterbatch is mixed with resin and auxiliaries, which should be paid more attention when choosing the color masterbatch. The color masterbatch needs strong solvent resistance and small migration. In this way, the color masterbatch produced will not send chemical reactions with plastic raw materials.
ASA color coextrusion material is mainly used to produce plastic steel profiles, together with it. The main requirement is that ASA color coextrusion material should be dried before use. If ASA color coextrusion material without drying is used, there will be flow lines or other abnormal spots of plastic steel material.
When choosing color masterbatch, we must also consider what plastic products are used to produce. For example, when producing children's toys, it is required that the color masterbatch should be non-toxic; when producing outdoor plastic products, we should choose the color masterbatch with good weather resistance and aging resistance.
Production of plastic products can not do without masterbatch, just like painting can not do without pigment coloring. Do plastic masterbatch need to be dried in the process of use? In most cases, it does not need to be dried and can be directly mixed with plastic raw materials. However, there are some exceptions, such as ABS masterbatch and NY masterbatch, which should be dried according to the normal production process before use to ensure the high quality of masterbatch.
Key words: Color Masterbatch, color masterbatch, production, coloring, dispersion, temperature, color, color, heat resistance
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