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White Masterbatch For The Production Of Injection Molded Products
- Aug 21, 2017 -


White masterbatch with bright color, colorful, high intensity of coloring, good dispersion, high concentration, good whiteness, hiding power, reasonable price and other advantages, resistance to mobility and good heat resistance characteristics.

White Masterbatch is widely used in the production of injection molding products, blown film plastic bags, as well as production flow film and so on. Because white Masterbatch titanium dioxide content is high, White Masterbatch so the plastic products produced by high brightness, in the temperature resistance of its performance is also very good, the raw material itself has no impact on the physical properties.

Therefore, in many colors of masterbatch, white Masterbatch has become the production of plastic products in the conventional color, the dosage is very large. Therefore, White Masterbatch in the development process of the production of white Masterbatch technology also requires more and higher. In particular, the higher the content of titanium dioxide, may result in the production of products dispersed uneven or mixed-color phenomenon.

Considerations for White Masterbatch use

First, in order to reduce the color of the fiber chromatic aberration, the white masterbatch to be diluted, control mixing ratio, filament not less than 3%~10%, short fiber not less than $number, White Masterbatch monochrome continuous filament with three-color equipment spinning, white masterbatch must be mixed into the extruder, at the same time to increase the melt itself mixing capacity, can be in the Extrusion machine section also add a mixing device.

Second, white Masterbatch mixed in the color of the formula to determine the colour, the white masterbatch before spinning evenly dispersed in the polypropylene section, is the key to ensure product quality, the specific mixing method there are two types. The first is the heavy method and volume method, White Masterbatch in the extruder or after the white masterbatch melting, with a small extruder into the polypropylene melt, the uniformity is very good.

Third, when choosing the white Masterbatch, to choose according to the range of selection, polypropylene Masterbatch has fine denier, coarse denier, White Masterbatch coarse denier white masterbatch color can not be used for fine-denier color, color should be considered spinning fiber single denier, select the same level of white masterbatch.

Four, the choice of white Masterbatch is the same manufacturer of the best products, in order to reduce the cost should be selected high concentration of white masterbatch. White Masterbatch pigments have high, medium and low-grade points, color should be based on the quality requirements of the fiber, White Masterbatch the appropriate choice of different levels of white masterbatch. To avoid the pigment light, different thermal stability caused by the quality of the product fiber variation, color should also be selected in line with the requirements of fiber quality, with the same light, thermal stability level of the white masterbatch color, crude fiber than fine fibers need less concentration, its white masterbatch application ratio is proportional to the square root of the number of fiber denier.