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What are the basic ingredients of the color masterbatch?
A pigment or dye
Pigments are divided into organic pigments and inorganic pigments. Commonly used organic pigments are: phthalocyanine red, phthalocyanine blue, phthalocyanine green, light red, macromolecule red, macromolecule yellow, permanent yellow, permanent purple, azo red and so on. Commonly used inorganic pigments are: cadmium red, cadmium yellow, titanium dioxide, carbon black, iron oxide red, iron oxide yellow and so on.
Second, the carrier
Masterbatch matrix, special masterbatch generally choose the resin with the same resin as a carrier, the compatibility of the two best, but also consider the carrier mobility.
Third, the dispersant
So that the pigment is evenly dispersed and no longer agglomerate, the melting point of the dispersant should be lower than the resin, and the resin has good compatibility, and the pigment has a good affinity. The most commonly used dispersant is: polyethylene low molecular weight wax, stearate.
Four additives
Such as fire-retardant, brightening, anti-bacterial, anti-static, anti-oxidation and other varieties, unless the customer request, under normal circumstances the masterbatch does not contain the above additives
Choose the two major advantages of color masterbatch
First, the pigment in the products with better dispersion
Second, is conducive to maintaining the chemical stability of the pigment
Third, to ensure the stability of the color products
Fourth, to protect the health of the operator
Fifth, keep the environment clean, do not stain the vessel
Six, the process is simple, easy to change color, save time and raw materials
Color Masterbatch variety and grade
First, the quality classification:
1, according to the carrier classification: such as PE Color Masterbatch, PP Color Masterbatch, ABS Color Masterbatch, PVC Color Masterbatch, EVA Color Masterbatch and so on.
2, according to the use of classification: such as injection masterbatch, blow molding masterbatch, spinning masterbatch and so on.
Second, the classification, such as the following:
1, senior injection Color Masterbatch: for cosmetics boxes, toys, electrical shell and other advanced products.
2, ordinary injection Color Masterbatch: for general household plastic products, industrial containers and so on.
3, high-level blown film masterbatch: for ultra-thin products blow molding coloring.
4, ordinary blown film Color Masterbatch: for general bags, woven bags of blow molding coloring.
5, spinning masterbatch: for textile fiber spinning coloring, color masterbatch fine particles, high concentration, strong coloring, heat resistance, good light resistance.
6, low-grade masterbatch: for the manufacture of color quality requirements of low-level products. Such as trash, low-level containers and so on.
7, special Color Masterbatch: is based on the user specified for the plastic products, use the same plastic as a carrier made by the masterbatch. Such as PP Color Masterbatch, ABS Color Masterbatch were selected PP, ABS as a carrier.
8, universal masterbatch: also with a resin (often low melting point of PE) as a carrier, but it can be applied to other than the carrier resin other than the coloring of the resin.
The difference between Universal Color Masterbatch and Special Color Masterbatch
Special Color Masterbatch:
Is based on the user specified for the plastic products, the use of the same plastic as a carrier made by the masterbatch. Such as PP Color Masterbatch, ABS Color Masterbatch were selected PP, ABS as a carrier.
Universal Color Masterbatch:
But also with a resin (often a low melting point PE) as a carrier, but it can be applied to other than the carrier resin other than the coloring of the resin.
Universal masterbatch is relatively simple and convenient, but the more shortcomings, we recommend that you choose a special masterbatch.
Color Masterbatch production process
First, the product name, vulgar name and process technology
According to the material is divided into: polyethylene, polypropylene, ABS, HIPS / PS, nylon, polyester, polypropylene spinning, pearl, PE cable jacket, communication cable, PE foam, PS foam masterbatch.
According to the function is divided into: anti-static, flame retardant, anti-aging, through, whitening bright masterbatch.
According to the color is divided into: black, white, yellow, green, red, orange, brown, blue, silver, gold, purple, gray, pink, pearl, imitation marble pattern (rhyolite), wood grain masterbatch.
Second, masterbatch production process There are four ways
1, ink method: As the name implies, in the production of masterbatch ink color paste production methods, that is, through the three-roll grinding, the surface of the paint coated with a layer of low molecular protective layer. The finely ground paste is then mixed with the carrier resin and then plasticized by means of a two-roll mill (also known as a two-roll mill) and finally granulated by a single screw or twin screw extruder.
2, flushing method: the pigment, water and dispersant through the sanding, so that the pigment particles less than 1μm, and through the phase transfer method, the pigment into the oil phase, and then dry to produce masterbatch. The organic solvent is required for phase conversion, and the corresponding solvent recovery unit. Its process is as follows:
Fine paste rinse → evaporate concentrate drying → add carrier → extrusion granulation
3, kneading method: the pigment and oily carrier is blended, the use of pigment lipophilic this feature, through the kneading of the pigment from the water into the oil phase. At the same time by the oily carrier will paint the surface coating, the pigment dispersion and stability, to prevent the pigment cohesion.
4, the metal soap method: the pigment after grinding the particle size of about 1μm, and at a certain temperature by adding soap, so that each pigment particles surface layer is evenly wet by the soap to form a layer of saponification solution, when the metal salt The solution is added to react with the saponified layer on the surface of the pigment to form a protective layer of metallic soap (magnesium stearate), so that the finely divided pigment particles do not cause flocculation and protect the fineness The The process is as follows:
Ingredients → mixing → thick paste → three-roll grinding → fine paste → two-roll plastic refining → extrusion granulation
Life everywhere color, masterbatch let our lives more environmentally friendly, more exciting!
Conclusion PULAIKEHONGMEI
Jiangsu Pulaike Hongmei Masterbatch Co., Ltd. is China's domestic earlier engaged in the development and manufacture of plastic masterbatch professional enterprises, is currently the largest in East China's polyolefin plastic masterbatch and functional masterbatch production enterprises, products Rich structure, the full range, testing equipment, product testing norms. For more information about our masterbatch product, please call us! We offer you a better solution!
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