1
In the sunlight, the article has striped with paint
The issues to be from the physical and mechanical properties of plastic and plastic molding process two aspects:
1.1 Temperature control of injection molding equipment is not good, can not be sufficiently mixed with the resin masterbatch after entering the mixing chamber.
1.2 injection molding machine does not add some back pressure, screw the mixing effect is not good.
1.3 masterbatch dispersion bad or good plasticizing resin.
Technological aspects can debug as follows: 1. kneading chamber by blanking the mouth portion 2. increase the temperature slightly put some back pressure to the injection molding machine.
As it is still not brought the matter to the above debugging, it may be masterbatch, dispersible or matching resin and masterbatch manufacturers should contact to resolve.
2
After using some kind of masterbatches, products seem easier to rupture
This may be undesirable due to the manufacturer chosen dispersing or poor quality due to diffusion aid solubility, affect the physical and mechanical properties of the products.
3
After pressing the proportion of masterbatch instructions on the use of color is too deep (too shallow)
Although this problem is simple, but there are many possibilities, in particular:
3.1. Without serious test color masterbatch, pigments too little or too much
3.2. When using the measurement is not accurate, the domestic enterprises, especially SMEs arbitrary measurement of the phenomenon abound
3.3. Problems match masterbatch and resin, which may be the carrier of choice masterbatch inappropriate, it may be free to change the resin manufacturers Variety
3.4. The temperature of the machine properly, masterbatch stay too long in the machine
Handler: First, check with the masterbatch resin varieties match, measurement accuracy, followed by temperature or adjust the machine speed, as there are still problems should masterbatch manufacturer.
4
The same masterbatch, resins and formulation, an injection molding machine of different products why color shades?
This is often the reason for the injection molding machine caused. Different injection molding machines because of different manufacture, use or maintenance of the status of the time, resulting in differences in the state machinery, especially close to the degree of difference between the original heating and barrel, so masterbatch dispersed state in the barrel is not the same in the above phenomenon will appear.
5
After the change to another brand of resin, the same masterbatch and formula, the color is changed, which is why?
Different grades of resin melt index and density will be different, so there will be differences in performance resins, masterbatch and compatibility will be a difference, which changes color, in general, as long as it does not differ density and melt index , then the colors will not be much difference, you can adjust the amount of masterbatch to more positive color.
6
Masterbatch during storage if the pigment migration phenomenon will affect the quality of the product?
Some masterbatch content (or dye) high, in this case, the phenomenon of migration is a normal occurrence. In particular adding the dye masterbatch, serious migration phenomenon will occur. But this does not affect the quality of products, since masterbatch injection molding products, the color pigment in the normal concentration in the article.
7
Why do some injection products luster bad?
There are a variety of possibilities:
7.1 The nozzle temperature of the injection molding machine is too low
7.2. Injection mold machine bad finish
7.3. Products molding cycle is too long
7.4. Titanium dioxide masterbatch contained excessive
7.5. Masterbatch dispersion bad
8
After some time, some plastic products, bleaching will occur.
Manufacturer basic pigments used poor quality, drift phenomenon.
9
Why ABS masterbatch particularly prone to color difference?
States produce different grades of ABS color even for the same grade of ABS, each batch batch there may be color, the use of masterbatch coloring of course there will be color. This is due to the properties of ABS caused in the international community has no definitive solution. However, this color is generally not serious.
Changzhou Hongmei Placke Masterbatch Co., Ltd. is China's domestic earlier in the development and specialization of plastic masterbatch manufacturing enterprise, is currently the largest in east China polyolefin plastic masterbatch and function masterbatch production enterprises.
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