1. After changing to another brand of resin, the same masterbatch and formula, but the color has changed:
Different grades of resin its density and melting index will be different, so the performance of the resin will be different, and the compatibility with the masterbatch will also be different, resulting in color changes, generally speaking, as long as its density and melting index are not much different, then the difference in color will not be too large, by adjusting the amount of masterbatch to more positive color.
2. Whether the pigment migration phenomenon of masterbatch during storage will affect the quality of the product:
Some masterbatches have high pigment content (or dye), in which case migration is normal. In particular, the color masterbatch of the dye is added, and serious migration occurs. However, this does not affect the quality of the product, because after the masterbatch is injected into the product, the pigment is at a normal color development concentration in the product.
3. Some injection products are not glossy:
1. The nozzle temperature of the injection molding machine is too low.
2. The mold finish of the injection molding machine is not good.
3. The molding cycle of the product is too long.
4. Masterbatch contains too much titanium dioxide.
5. The dispersion of masterbatches is not good.
Therefore, in the process of production, we must operate rigorously and not be sloppy, but in the face of these problems, manufacturers can also overcome them all, and produce excellent masterbatches for users, so that users can use it with confidence. Therefore, each of these grains is very hard-won, I hope that when you use it, you should also cherish a little and use it seriously.
