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Question: In the sunlight, the product striped pigment strip?

This problem from the physical and mechanical properties of plastic and plastic molding process in two ways:
1, injection molding equipment, the temperature is not controlled, the masterbatch into the mixing chamber can be mixed with the resin completely.

2, injection molding machine does not add a certain back pressure, screw mixing effect is not good.

3, the dispersion of the masterbatch is not good or resin plasticization is not good.

Process can be used for the following debugging:
1, the mixing chamber by the mouth of the mouth part of the temperature slightly increased 2. To the injection molding machine to a certain back pressure.
Such as the above debugging is still not good, is likely to be the masterbatch, resin dispersion or matching problems, as soon as possible with the masterbatch manufacturers to solve the problem.

2, the use of a masterbatch, the product appears to break easily
This may be due to the manufacturer of dispersants or additives used in poor quality caused by poor dispersion miscarriage, affecting the physical and mechanical properties of products.

3, according to the proportion of masterbatch instructions on the use of color too deep (too shallow)
Although this problem looks simple, but there are many possibilities, specifically:
3.1, masterbatch without careful test color, too little or too much pigment
3.2, the use of measurement is not accurate, today's domestic enterprises, especially small and medium-sized enterprises at random measurement of the prevalence of the phenomenon
3.3, masterbatch and resin matching problems, the possible reasons is the carrier of the masterbatch improper selection, there may be manufacturers to change the variety of resin caused
3.4, the machine temperature is not properly, the masterbatch in the machine stay too long
Process: The first step, you need to check whether the varieties of resin matching with the masterbatch, metering is accurate, followed by adjusting the machine temperature or speed, such as the problem still should be to the masterbatch manufacturer contact feedback.

4, the same color masterbatch, resin, recipe, why the different injection molding machine out of the product color depth?
This is often the cause of injection molding machine. Different injection molding machine due to manufacturing, use of time or maintenance of different conditions, resulting in mechanical state has a different difference, especially the heating element and the barrel of the close degree of difference, so that the masterbatch in the barrel of the decentralized state is not , The above phenomenon will appear.

5, for another brand of resin, the same masterbatch and formula, the color has been other changes, which is why?
Different grades of resin density and melt index will have a certain difference, so the performance of the resin will have some differences, and the compatibility of the masterbatch will have a certain difference, so there will be other changes in color, in general , As long as the density and melt index difference is not, then the color difference is generally not too much, you can adjust the amount of masterbatch to correct color.

6, Color Masterbatch in the storage process of the phenomenon of pigment migration will affect the quality of products?
Some color masterbatch pigment content (or dye) is very high, in this case, the migration is normal phenomenon. Especially after the dye to join the masterbatch, there will be a serious migration phenomenon. But this does not affect the quality of products, because the color masterbatch injection into the product, the pigment in the products in the normal color concentration.

7, why some injection products gloss is not good?
In general there are several reasons:
Injection molding machine nozzle temperature is too low
Injection mold machine mold finish is not good
Long product cycle time
Color masterbatch contains too much titanium dioxide
Masterbatch dispersion is not good

8, after a period of time, some plastic products will fade.
The manufacturer used by the poor quality of the basic pigment, a certain drift phenomenon.

9, why ABS color masterbatch particularly prone to chromatic aberration?
Countries produce different brands ABS color difference, even if the same grade of ABS, each batch number may also exist color, the use of color masterbatch coloring, of course there will be the emergence of color. This is due to the characteristics of ABS caused by the international community there is no complete solution. However, such chromatic aberration is generally not critical.

Strength Yujie

Hangzhou Yujie Chemical Co., Ltd. is engaged in plastic modification, masterbatch industry, is a collection Branch, workers and trade in an integrated enterprise. The main production base located in Shanghai Jinshan District.

Domestic and foreign companies preferred a number of advanced equipment and complete a full range of experimental and testing equipment for research and development of new products to ensure the quality of quality and control. The use of twin-screw water, double-rotor and other advanced technology to produce all kinds of high-density masterbatch, modified plastics and functional masterbatch. Products through the IS0 9001: 2000 quality certification.

Adhere to customer first, quality-oriented, the credibility of the first, and constantly blaze new trails, realistic seeking the United States. Company sincerely welcome friends at home and abroad calls communication business negotiations.