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. Ensure product quality and yield, reduce energy consumption, improve production efficiency. is a new generation of economic white mother characteristics.
White Masterbatch and its preparation method
The components of white masterbatch are as follows: Carrier $number, titanium dioxide $number, barium sulfate $number, Brightener 0.1%~1%, antioxidant 0.1%~1%. The beneficial effect of the invention is that the ternary copolymer resin is used as the carrier, and polyester has good compatibility, White Masterbatch but also can reduce the crystallinity of polyester, reduce the melting point and viscosity of polyester, increase its fluidity, so as to improve the dispersion performance, and easy to use, low cost, high coloring quality, and can ensure that pet products have good physical and mechanical properties.
Considerations for White Masterbatch use
1, in order to reduce the color difference of fiber, to the white masterbatch to be diluted, control mixing ratio, filament not less than 3%~10%, short fiber not less than $number, monochrome continuous filament with three-color equipment, white masterbatch must be mixed into the extruder, White Masterbatch at the same time to increase the melt itself mixing ability, Mixing devices can also be added in the extruder segment.
2, White masterbatch mixed in the color of the formula to determine the colour, the white masterbatch before spinning evenly dispersed in the polypropylene section, White Masterbatch is the key to ensure product quality, concrete mixing methods have two types. The first is the heavy method and volume method, in the extruder or after the white masterbatch melting, with a small extruder into the polypropylene melt, the uniformity is very good.
3. When choosing a white masterbatch, to choose according to the range of selection, polypropylene Masterbatch has fine denier, coarse denier, coarse denier white masterbatch color can not be used for fine-denier color, color should be considered spinning fiber single denier, White Masterbatch select the same level of white masterbatch.
4, 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, 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, White Masterbatch with the same light, thermal stability level of the white masterbatch color, White Masterbatch 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.
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