Masterbatch coloring common problems and countermeasures
 
Masterbatch coloring has many advantages, such as: pigment in the product has better dispersion; Helps maintain paint chemical stability; For operating personnel's health will not affect, convenient operation, etc. Masterbatch, however, in the process of use may be due to other factors can cause some coloring problem. Jade jade today will show you to the specific masterbatch coloring common problems and countermeasures.
 
A, under the sunlight, products in the paint with stripes
This problem should be from plastic physical and mechanical properties and plastic molding process two aspects to consider:
1. The temperature of the injection molding equipment not good control, color master can't fully mixed with resin after entering the mixing chamber;
2. Injection molding machine without a back pressure, screw mixing effect is not good;
3. The pigment dispersion of plasticizing or resin.
 
Process the debugging
1. The mixing of mouth cavity by blanking part temperature increase slightly;
The injection molding machine 2. Under certain back pressure.
 
If the above debugging is still not good, may be masterbatch and dispersion of the resin or matching problem, should be resolved contact masterbatch manufacturer.
 
Second, using some color mother, products appear more easily broken
This may be due to the manufacturer chooses the spread of the dispersant additives or quality is not good cause bad miscibility, physical and mechanical properties of the affected products.
 
 
 
Third, color master the directions according to the proportion of after use, color too deep (shallow)
The problem is simple, but there are many possibilities, specific as follows:
 
1. Without seriously try to color masterbatch, paints too little or too much;
2. When using inaccurate measurement, measurement phenomenon at a large number of domestic enterprises especially small and medium-sized enterprises;
3. The matching problem of pigment and resin, this may be improper selection is the carrier of masterbatch, can also be resized resin manufacturer varieties;
4. The machine temperature is undeserved, masterbatch stay too long in the machine.
 
Handler: first check whether resin varieties and mother color matching, measurement is accurate, then adjust the temperature of the machine or speed, if there is still a problem, should be to contact masterbatch manufacturer.
 
Four, the same pigment, resin and formulation, and different injection molding machine injection depth is the color of the products have?
This is often caused by the reason of 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.
 
Hangzhou jade jie chemical co., LTD. The main non-woven masterbatch, functional masterbatch, color oil, color sand, dispersed pigments and other products, for more product details, welcome to contact us!
 
 
To be continued, please focus on the next great content!