It is well known that color masterbatches have certain requirements for the color materials used. Generally, inorganic pigments have better heat resistance, and organic pigments and dyes have poor heat resistance. This point should be paid attention to when choosing color materials. Today, Qingdao Sainuo polyethylene wax manufacturer will take you to know how to choose color masterbatch.

1. The other properties of the colorant should be understood. For example, for plastic products used in food and children's toys, the colorant should be non-toxic. For plastic products used in electrical appliances, pigments with good electrical insulation properties should be selected. For outdoor plastic products, color materials with good weathering resistance should be selected.

2. The dispersion and tinting strength of the pigment should be good. When the pigment is unevenly dispersed, it will affect the appearance of the product. When the coloring power of the pigment is poor, the amount of the pigment will increase and the material cost will increase. The same colorant has different dispersibility and tinting power in different resins, so you should pay attention to this when choosing a colorant. The particle size of the pigment is also related to the dispersibility. The smaller the particle size of the pigment, the better the dispersibility and the stronger the coloring power.

3. The pigment cannot react with resin and various additives, and has strong solvent resistance, low migration and good heat resistance. In other words, the color masterbatch cannot participate in various chemical reactions. For example, carbon black can control the curing reaction of polyester plastic, so carbon black material cannot be added to polyester.

4. Due to the high molding processing temperature of plastic products, the pigment should not decompose and change color under the molding heating temperature. Generally, inorganic pigments have better heat resistance, and organic pigments and dyes have poor heat resistance.

Qingdao Sainuo Chemical Co.,Ltd. We are manufacturer for PE wax, PP wax, OPE wax, EVA wax, PEMA, EBS, Zinc/ Calcium Stearate…. Our products have passed the REACH, ROHS, PAHS, FDA testing.

Sainuo rest assured wax, welcome your inquiry!

Website：https://www.sainuowax.com

E-mail：sales@qdsainuo.com

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Adress：Room 2702,Block B, Suning Building, Jingkou Road, Licang District, Qingdao,China