Not all pigments are suitable for plastic masterbatch, pigments for plastic masterbatch, different factors such as processing technology, plastic products, etc., the performance requirements for pigments are different, in general, have the following Performance requirements:

Color

The coloring force of the pigment refers to the amount of pigment required for a certain color article, expressed in the percentage of standard samples. The coloring force of the pigment is not only related to its nature, but also related to the degree of dispersion of the pigment, the degree of dispersion is mainly the degree of refinement of the pigment, the larger the dispersion, the stronger the color force, but there is a saturation value.

2. Heat resistance

Heat resistance refers to its degree of change in color or performance of the pigment at the temperature of the processed and used. It is necessary to consider its heatstream time when considering the heat resistance of the pigment. Due to the different processing methods, the processing method is different, during use, during use, the use is different, and the heat is different, the higher the temperature, the shorter heat treatment.

3. Mobility

Mounting resistance of pigments refers to a long-term contact with other solid, liquid, and gas state substances or in a certain particular environment. It is possible to physically and chemically in the above substance. It is manifested as a pigment to migrate from plastic to the article. Free surface, or migrated to adjacent plastic or solvents.

4. Nature and weather resistance

Plastic products require good light resistance and weather resistance due to long-term use of outdoor use. Some pigments have different degrees of variations under illumination of light. Weather resistance refers to the color stability of the pigment under a variety of natural conditions. Black mother is very much in use, which is specially focused on migration and weather resistance.

Chemical resistance

Industrial plastic products are often used to store chemicals and use as transport acids, bases, etc., and thus considering the resistance and alkali resistance of pigments.

Chemical drugs such as acid, alkali should also include resin decomposition products, other additives in the article, and detergents, bleaching agents, and the like in the environment.

6. Toxicity

Plastic products used in daily life are increasingly paying more and more attention to the toxicity of color plastics.

7. Mixing

When the plastic product is colored, two of the above pigment colors are often used, so it is necessary to understand the mixing properties between them, and it is also necessary to understand whether the color master is chemically reacted with additives in plastics.

The plastic masterbatch from a high proportion of pigment or additive with a thermoplastic resin, a plastic colorant obtained well, and the selected resin has good wetting and dispersion, and has good phase with the coloring material has a good phase. Capacity. That is: the pigment + vector + additive = color masterbatch.

Only the requirements of plastic masterbatch can be achieved only in accordance with 7 indicators above.