With the continuous development of China's economy in the international status, plastic products processing industry in the domestic fierce development, many enterprises to establish cooperation with international enterprises, export products continue to improve and improve the color requirements, masterbatch coloring gradually dominated Status, classification of the applicability of masterbatch, it can be divided into universal masterbatch and special masterbatch.

A: What is a dedicated masterbatch?
That is, in the production of masterbatch, the same resin as the coloring resin as a carrier, adding high concentrations of pigments (dyes), under the action of additives, by heating, plasticizing, mixing, extrusion granulation, Made specifically suitable for the resin of the chromosome, known as special color masterbatch. Special color masterbatch concentration can be high or low, the general amount of added between 3% to 6%.
 
B: What is Universal Color Masterbatch (Universal Color Masterbatch)?
 
With a resin as a carrier, but it can be applied in addition to its carrier resin other than the coloring of the resin, so called universal masterbatch. The so-called universal masterbatch, generally take the following measures:
B.1: some color masterbatch simply do not use resin as a carrier, and all with high melting point of polypropylene wax / polyethylene wax as a carrier (called no carrier Color Masterbatch)
B.2: There are optional low melting point, high melt index resin as a universal masterbatch carrier, such as PE or EVA.
B.3: Second, the masterbatch pigment powder ratio as high as possible, so universal masterbatch must be a high concentration of color masterbatch, in the use of injection products is generally 1%. B.4: In order to make the universal color master can be colored with other types of resin (good affinity), in the universal color masterbatch also used other measures, such as adding a special role in the coupling agent, Refining time, etc., which are conducive to improving the broad applicability of Universal Color Masterbatch.
 
C: So what kind of color master is appropriate?
 
 
C1: Is it the best color? Let us from the manufacturing plant, dealers, users and economic benefits, convenience or not, the results of products to analyze several aspects:
1: from the manufacturing plant in terms of: In order to produce universal masterbatch must use a higher heat-resistant grade, the application of a wide range of pigments, and pigment powder temperature to a certain extent, each increased 10 ℃ -20 ℃, The cost will rise 50% -100%. When the use of a high temperature pigment made of universal masterbatch, for high melting point resin coloring, it is used when, and for LDPE such a low melting point of the resin, but it is the surplus value.
2: some dyes it can be applied to ABS, HIPS such a number of hard plastic coloring, and the color strength and strong, will not migrate, the cost is low, it can be made of color masterbatch can not be used in polyethylene products, because It will be a serious migration, universal masterbatch can not use it as a dye.
It is precisely because the universal masterbatch is emphasized, it is for other resin, so its use of materials has been limited, the high is not low, the cost of production will increase, the use of sales costs also increased. But not absolute, and sometimes for some users, the cost of using Universal Color Masterbatch will decline, why see it?
  

It can be said that the original use of special masterbatch, the use of ratio of 1:25, and the use of universal masterbatch, the use of ratio of 1: 100, then 1 kg universal masterbatch can be reached on 4 kg of special masterbatch, the factory production color The cost of the parent processing costs at 5-10 yuan per kilogram (equipment, color masterbatch, color masterbatch, different management level). Less than 3 kg of color masterbatch, the processing costs to save from the manufacturer to the user, so even if the price of common masterbatch units higher, due to reduced consumption, converted into the color per ton of resin, but more than the use of special color Mother cheap. Some distant dealers and users often welcome Universal Color Masterbatch, in addition to save a few hundred dollars / ton of freight, the use of convenience is also a factor. Some small and medium enterprises to accept orders, resin varieties, the production process to be constantly changing the resin, in the color requirements are not very strict circumstances, this time, the purchase of universal masterbatch, its wide applicability of the advantages of fully revealed. In addition to the other, less into some varieties of Color Masterbatch, both to reduce the inventory, and easy to sell; and standing from the perspective of the masterbatch factory, in the market competition, lack of orders, hope to produce more special Color Masterbatch, not only can save raw material costs, and can earn some processing fees.

From the coloring effect to analyze: because the different resin in the coloring process, the "eat color" is not the same degree, the same amount of added in different resins, the coloring effect will be different, sometimes the difference is still great. At this point, with a universal masterbatch is difficult to achieve the desired effect, in turn, the universal applicator of the wide applicability, although the carrier resin and the coloring resin is not compatible with the situation can be ignored, but not equal to safe and sound, completely non-existent. Production and use of universal masterbatch units have a certain pressure, all aspects of a little careless, "hidden" problem will become a "dominant" problem.
 
In addition to the above-mentioned coloring color, the addition ratio is small, the dispersion is relatively poor, plastic products on the surface prone to patterns, stains, color points, still due to species and not caused by crisp and other phenomena, For large areas, thin-walled shape and complex plastic parts to attract attention, then as much as possible with a special color masterbatch, and select the low concentration of the masterbatch to increase the amount added to improve its dispersion.

So in general, the universal masterbatch for low-end injection parts, or less demanding on the color of electronic products, and some automotive exterior parts, office stationery, home appliances shell requirements are higher, the individual will use toner To stain. And cosmetics packaging on the color requirements are high, it must be special color, proofing in line with customer requirements, and then orders; film level, spinning grade because the product is very thin, very fine. On the dispersion requirements are high, the accuracy of the color requirements, so also a special color, and then orders. So we can masterbatch manufacturers can be divided into two categories: a class specifically for general masterbatch (including most of the functional masterbatch manufacturers); a class is to do a special masterbatch. The general masterbatch manufacturers too much, highly competitive, almost rely on capital and scale to survive. Special masterbatch manufacturers rely on technical competition, occupy the world's color masterbatch market. Now part of the domestic masterbatch manufacturers, to learn from these foreign masterbatch manufacturers technical advantages, has also seized a certain special masterbatch market.