Color masterbatch is because of its own performance characteristics can stand out in a large number of dyes, when
it is used not only the color can not fall long, but also very environmentally safe. But some people have reflected
that, why buy the color masterbatch after the use of a short period of time will fade? This is mainly due to the
following factors. Today, Qingdao Sainuo polyethylene wax manufacturers take you to understand the first two
solutions.
1. Light fastness
Light resistance will directly affect the fading of products, outdoor products exposed to strong light, its light (light
resistance) grade requirements is an important indicator, light resistance grade is poor, products in use will quickly
fade. Weather-resistant products should be selected light-resistant grade should not be lower than six,
recommended to choose seven, eight, indoor products can choose four, five.
Solution: The light resistance of the carrier Resin also has a great influence on the color change. The molecular
structure of the carrier resin changes after UV irradiation. The light stability of colorant and colored plastic
products can be improved by adding UV absorbents and other light stabilizers into color masterbatch. However,
the pigments of organic compounds will change their molecular structure and decompose a little at a certain
temperature, especially PP, PA, PET products.
2. Heat resistance
The thermal stability of pigments refers to the degree of heat loss, discoloration and fading of pigments at the
processing temperature. Inorganic pigments for the composition of metal oxides, salts, good thermal stability, high
heat resistance.
Solution: The processing temperature of color masterbatch is over 280 °C. when selecting colorant, we should pay
attention to the heat resistance of pigment on the one hand and the heat resistance time of pigment on the other
hand.
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.sanowax.com
E-mail：sales@qdsainuo.com
sales1@qdsainuo.com
Adress：Room 2702,Block B, Suning Building, Jingkou Road, Licang District, Qingdao,China
Post time: Dec-04-2020