Color masterbatch is a new kind of polymer material stain the superior performance of coloring, energy saving, no dust, no pollution, large-scale, construction profiles, agricultural plastic pipe used for coloring. However, there will be some problems with the use of the color master.let's take a look at the reasons and the solution:
One, in the light of the sun, there is the ribbon of the pigment in the product
This problem should be considered in two aspects: plastic physical mechanical performance and plastic molding process:
The temperature of the injection molding equipment is not controlled. The color mother can't mix with the resin after entering the mixing chamber.
2, the injection molding machine does not add certain back pressure, the mixing of the screw is not good.
The dispersion of the color mother is bad or the resin plasticization is not good.
The process can be made as follows:
Increase the temperature of the mixing chamber by the portion of the mouth
Put back pressure on the injection molding machine.
If the above adjustment is not good, then it may be the dispersion or matching problem of the color mother and resin, and should be solved by the manufacturer of the color mother grain. Reply to "color" for more articles
After using a certain color mother, the product appears more easily broken
This may be due to the poor quality of dispersants or additives chosen by the manufacturer and the physical mechanical properties of the products.
The color is too deep (too shallow) after using the proportion of the color mother's instructions.
This is a simple question, but there are many possibilities, specifically:
The colour mother is not careful to try color, the pigment is too little or too much
The measurement of inaccuracies in use is not accurate, and the phenomenon of arbitrary measurement by domestic enterprises, especially small and medium-sized enterprises, is abundant
There is a problem with the matching of the color mother and the resin, which may be the choice of the color mother's carrier, or the manufacturer will change the resin variety at will
4, the machine temperature is improper, the color mother stays in the machine too long
Handler: first check whether resin varieties and mother color matching, measurement is accurate, then adjust the temperature or the machine speed, such as there is still a problem to contact masterbatch manufacturer.
Four, the same color mother, the resin and the formula, the product of different injection molding machine why the color has the depth?
This is often caused by the injection molding machine. Different injection molding machine for the manufacture, the using time or the maintenance condition is different, causing the difference between the state of machinery, especially the difference of original heating and the degree of close to the cylinder, the pigment in the dispersed state in the cylinder is different also, the above phenomenon will appear. Reply to "injection molding machine" for more articles
Five, change the resin of another kind of brand, same color mother and formula, the color changes, this is why?
Different type of resin its density and melt index will have difference, so the performance of the resin will have difference, and the compatibility of color master also can have differences, so as to change color, generally speaking, as long as its density and melt index were similar, so the color difference is not too big, can be more is by adjusting the dosage of the masterbatch color.
6, does the occurrence of pigment migration in the storage process affect the quality of the products?
The pigment content (or dyes) of some color mothers is high, and in this case, the migration is normal. In particular, the colored mother of the dye will have a serious migration. However, this does not affect the quality of the products because the pigment is normal in the product when the color mother is injected into the product.
7, why some inject product luster not good?
There are many possibilities:
The nozzle temperature of the injection molding machine is too low
The mould of injection molding machine is not good
The product has a long period of forming
There is too much titanium powder in the color mother
The color mother's dispersion is not good
After a period of time, some plastic products will fade.
The basic pigment quality of the manufacturer is not good, and the drift phenomenon occurs.
Nine, why is the mother of ABS particularly prone to colour differences?
The different brands of ABS produced by each country are large, even with the same number of ABS, and each batch number may exist. However, this color difference is generally not serious. When using ABS, the user must pay attention to this feature of ABS.
