Introduction of color paste products and production process

Introduction of color paste products and production process
As we all know, the concept of color paste was introduced to China by Chromaflo Company of the United States, and it was firstly applied in the field of water-based coatings. The color paste we are talking about now should be color paste in the strict sense.


The following is the equipment used in the black paste workshop of the factory – twin-screw. The products produced by the twin-screw are not only evenly dispersed, but also have good gloss.
Due to the same direction of rotation of the twin screw in the engagement of the speed of the opposite, a screw to pull the material into the engagement gap, while the other screw to push out the material from the gap, the result is that the material from one screw to another screw, was “∞” shape forward. Due to the engagement area gap is very small, the engagement of threads and grooves in the opposite direction of the speed, so it has a very high shear speed, has a good self-cleaning effect, that is, it can scrape off the adherence in the screw on any accumulation of material, thus making the material residence time is very short, so the engagement of the same type of twin-screw extruder is mainly used for mixing and pelletizing.
This is the hydraulic three-roll grinder used in the color paste workshop, which can ensure high fineness, good gloss and strong coloring power.


Hydraulic three-roller grinder is mainly used to grind the color paste by double vane pump. The hydraulic pressure not only controls the double vane pump, but also regulates the in and out of the coloring paste. The process of grinding color paste, and the fineness of the color paste, also need hydraulic pressure to regulate. In short, the hydraulic three-roller mill is mainly through the hydraulic means to realize the automation of grinding color paste.
In addition, the company has its own R & D team, equipped with experimental sand mill, experimental mixer and experimental three-roller mill, in order to do experimental research.
Color Paste Introduction
First of all, our black color pastes are divided into color pastes for traditional equipment, special color pastes for static machines and special color pastes for automatic lines according to the equipment used. In addition, we also have two-component special color pastes as well as special color pastes for industrial adhesives.
The following are our color pastes. At present, the sunlight resistance grade of the big red has reached the highest grade, and the newly introduced environmentally friendly yellow is free of heavy metal ions, so it can be used with peace of mind. In addition, the red color also contains the commonly used iron red, the yellow color has orange chrome yellow, iron yellow and medium chrome yellow, the white color has porcelain white and titanium white for you to choose from, and then there are also phthalocyanine green and phthalocyanine blue, all of which are ground by the grinder to ensure that the products are free of particles.


We have passed the SGS environmental protection monitoring to ensure the green environmental protection of the products. Meanwhile, in order to ensure the stability of the products, each batch of products have been sampled and tested, mainly on the product appearance, fineness, color, volatile matter, consistency and other 5 tests. The volatile matter, we are committed to within 0.8%, the fineness is below 25μm, and the color difference of each batch of products is less than 0.7.
For the color paste, one of the key concerns is its coloring power, the following is a comparison chart, with the same amount of color paste plus the same amount of base material and peer color paste comparison, you can see that the left side of the color here is obviously darker than the right side of the color, which the left side of the products are made of Karol color paste, the amount of color paste to add a small amount of color paste to achieve the same coloring effect.

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