Color masterbatch is a plastic colorant that is well dispersed with a high proportion of pigments or additives and thermoplastic resin. The selected resin has a good wetting and dispersing effect on the colorant, and has a good phase with the coloring material. Capacitive. Namely: Pigment + Carrier + Additive = Advantages of Masterbatches for Coloring with Masterbatches Commonly used coloring methods for thermoplastics include: Pigment mixes natural resin and colorant into colored plastics, which are then used in the molding process. Dry powder coloring: The powder coloring agent and the natural color resin are uniformly mixed and directly used to make plastic products. Masterbatch coloring is the most commonly used plastic coloring method today.

　　Plastic colorant made of high proportion of pigments or additives and thermoplastic resin, after well dispersion, the selected resin has good wetting and dispersing effect on the coloring agent, and has good compatibility with the material to be colored

Color masterbatch is generally used. Compared with granulation coloring, masterbatch coloring has the following advantages:

1. Coloring and product processing are completed at one time, avoiding the heating process of pelletizing and coloring on plastics, which is good for protecting the quality of plastic products.

2. Minimize the production process of plastic products.

3. It can save a lot of electric energy.

The use of color masterbatch is very simple, just mix it with resin particles according to the specified ratio and mix by hand.

Pay attention to the following issues in the operation of the equipment:

1. The mixing cavity of an injection molding machine or extruder generally has multiple temperature zones, and the temperature near the blanking port should be slightly higher. This is to make the color masterbatch melt quickly after entering the mixing cavity, and the plastic resin as soon as possible The mixing is uniform, which is conducive to the good dispersion of the masterbatch pigment in the product.

2. Appropriate back pressure is applied to the injection molding machine, which can improve the mixing effect of the screw and facilitate the dispersion of the pigment. The side effect of applying back pressure is to slow down the injection speed.

3. Properly increase the temperature of the die head of the extruder to increase the brightness of the product.

How to determine the proportion of color masterbatch used?

The basis for determining the proportion of color masterbatches is to obtain satisfactory coloring effects. As long as the surface tone of the product is uniform, without streaks and spots, it can be approved.