Color Masterbatch, also known as color, is a new polymer materials for coloring agents, also known as pigment preparations. It consists of pigments or dyes, carriers and additives consisting of three basic elements, is the extraordinary amount of pigment or dye evenly supported in the resin obtained from the aggregate, can be said pigment concentrates, so its high color strength In the pigment itself. In short, the masterbatch is a kind of super-constant amount of pigment or dye contained in the resin and the uniformity of the system.
Make
With the benefits of masterbatch
Is conducive to maintaining the chemical stability of the pigment and color stability;
So that the pigment in the plastic have better dispersion;
Protection of the health of operators;
Simple process, easy to turn color;
The environment is clean, does not stain the vessel;
Save time and raw materials.
The basic composition of color masterbatch
Pigments or dyes: pigments are divided into organic pigments and inorganic pigments:
Commonly used organic pigments are: phthalocyanine red, phthalocyanine blue, phthalocyanine green, fast red, macromolecules red, macromolecules yellow, permanent yellow, permanent purple, azo red;
Commonly used inorganic pigments are: cadmium red, cadmium yellow, titanium dioxide, carbon black, red iron oxide, yellow iron oxide and so on.
Carrier: is the matrix of the masterbatch. Special masterbatch generally choose the same resin and resin products as a carrier, the compatibility of the two best, but also consider the carrier fluidity.
Dispersant: to promote uniform dispersion of the pigment and no longer cohesion, the melting point of dispersant should be lower than the resin, and the resin has good compatibility, and pigments have a better affinity. The most commonly used dispersants are: polyethylene low molecular weight wax, stearate.
Additives: such as flame retardant, brightening, antibacterial, antistatic, anti-oxidation and other varieties, unless the customer request, under normal circumstances the masterbatch does not contain the above additives.
Color Masterbatch varieties and grades
▶ By carrier classification: such as PE Color Masterbatch, PP Color Masterbatch, ABS Color Masterbatch, PVC Color Masterbatch, EVA Color Masterbatch
▶ Classification by purpose: such as injection of color masterbatch, blow molding masterbatch, spinning masterbatch and so on
▶ The variety can be divided into different grades, such as:
Advanced injection Color Masterbatch: for cosmetics packaging, toys, electrical appliances and other high-level products shell.
Ordinary injection Color Masterbatch: for general daily plastic products, industrial containers.
Advanced blown film masterbatch: for ultra-thin products, blow molding coloring.
Ordinary blown film Color Masterbatch: for general bags, woven bag blow molding coloring.
Spinning Color Masterbatch: for textile fiber spinning coloring, masterbatch pigment fine particles, high concentration, strong coloring, heat resistance, good light fastness.
Low-grade Color Masterbatch: Used to make low-grade products with low color quality requirements. Such as trash, low-level containers.
Special Color Masterbatch: is based on the user specified for the products of plastic varieties, use the same plastic as the carrier made by the masterbatch. Such as PP Color Masterbatch, ABS Color Masterbatch were selected PP, ABS as a carrier.
Universal masterbatch: also with a resin (often low melting point of PE) as a carrier, but it can be applied in addition to its carrier resin other than the coloring.
Color Masterbatch advantages
Coloring and processing of finished products at one time, to avoid the granulation of the plastic heating process, the protection of the quality of plastic products is good.
So that the production of plastic products, the most simplified.
Can save a lot of power.
Does the coloring product with the color master do not fade?
There is no absolute non-fading products, the use of color masterbatch coloring products are still possible to fade, but for different grades of different products only, some more obvious, while others are difficult to detect.
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Color Masterbatch six major advantages
1, so that the pigment in the products with better dispersion
2, is conducive to maintaining the chemical stability of pigments
3, to ensure product color stability
4, to protect the health of operators
5, to keep the environment clean, non-contaminated containers
6, the process is simple, easy to color, saving time and raw materials
Universal masterbatch and special masterbatch distinction
Special Color Masterbatch: is based on the user specified for the products of plastic varieties, use the same plastic as the carrier made by the masterbatch. Such as PP Color Masterbatch, ABS Color Masterbatch were selected PP, ABS as a carrier.
Universal masterbatch: also with a resin (often low melting point of PE) as a carrier, but it can be applied in addition to its carrier resin other than the coloring.
General Color Masterbatch relatively simple and convenient, but more shortcomings, we recommend the use of special color masterbatch.
Why many companies do not produce universal masterbatch?
International most of the regular masterbatch companies generally do not produce universal masterbatch.
Universal masterbatch there are many shortcomings. In fact, the universal masterbatch "universal" range is very narrow, technical indicators, economic efficiency is also poor, specifically in:
1, the coloring effect of predictive difference Color masterbatch is used to color, universal masterbatch pigment in different plastic will show a different color, so the coloring effect of predictability is poor.
2, the impact of other properties of plastic products, especially the impact strength, the product is easy to deformation, distortion, more obvious on the engineering plastics.
3, the cost of common masterbatch in order to be able to "universal", often use a higher heat-resistant grade of paint, resulting in waste.
In addition to coloring masterbatch, the masterbatch can also have a flame retardant, brightening, anti-static, anti-oxidation, anti-ultraviolet and other functions in a number of functions. Sometimes, although the customer does not request, Color Masterbatch company will also see the need for products to add some additives, such as in the masterbatch to add certain additives, such as brighteners. Of course, this will increase the cost of the product.
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Mother of the production process
1, the product of the scientific name, common name and process technology
PE, ABS, HIPS / PS, nylon, polyester, polypropylene fiber, pearl, PE cable jacket, communication cable, PE foam, PS foam masterbatch.
According to the function is divided into: anti-static, flame retardant, anti-aging, AR, brightening 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.
2, masterbatch pellet production process there are four ways
(1) ink method: As the name suggests, in the production of masterbatch using ink paste production methods, that is, through the three-roll grinding, the surface coating of a layer of low-molecular-weight protective layer. The finely ground paste is then blended with the carrier resin and then plasticized by means of a two-roll mill (also called a two-roll mill) and finally granulated by means of a single-screw or twin-screw extruder.
(2) Washing method: Pigment, water and dispersant are sanded to make the pigment particles less than 1μm, and the pigment is transferred into the oil phase by phase transfer and then dried to obtain the masterbatch. The organic solvent is required for the phase inversion and the corresponding solvent recovery unit. The process is as follows:
Fine paste washing → evaporating concentrate drying → adding carrier → extrusion granulation
(3) Kneading method: The pigment and the oily carrier are blended, and the pigment is washed from the aqueous phase into the oil phase by kneading using the characteristics of the pigment lipophilicity. At the same time by the oily carrier coating the surface of the pigment, the pigment dispersion stability, to prevent pigment aggregation.
(4) metal soap method: the pigment after grinding to about 1μm particle size, and at a certain temperature by adding soap, the surface layer of each pigment particles were evenly wetting the soap to form a layer of saponification solution, when the metal After the salt solution is added, it is chemically reacted with the saponification layer on the surface of the pigment to form a protective layer of metal soap (magnesium stearate), so that the finely ground pigment particles do not cause flocculation, but protect a certain fine degree.
3, the process is as follows:
Blending → coarse paste → three-roll grinding → fine paste → two-roll mastication → extrusion granulation
Changzhou Pulaike Hongmei Masterbatch Co., Ltd. specializes in producing and selling high-quality masterbatch, you can trust!
