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The masterbatch is an aggregate obtained by uniformly loading supernatant pigments in the resin.

The use of color masterbatch has the following advantages:

1. make the pigment in the product has a better dispersion
Colorants in the production process to be refined on the paint to improve the pigment dispersion and color strength. The carrier of the special color masterbatch is the same as the plastic variety of the product, and has good matching. The pigment particles can be well dispersed in the plastic of the product after heating and melting.

2. It is beneficial to keep the chemical stability of the pigment
Direct use of paint, because the storage and use of the pigment in the process of direct contact with the air, the pigment will occur due to water absorption, oxidation and other phenomena, and made color masterbatch, the resin carrier will be pigment and air, water separation, can make the quality of the pigment long change.

3. To ensure the stability of the product color
Color Masterbatch particles and resin particles similar to the measurement is more convenient and accurate, the mixture will not adhere to the container, and the resin mixture is more uniform, so you can ensure the stability of the added amount, so as to ensure the stability of the product color.

4. Protect the health of the operator
Pigments are generally powdery, add and mix easily when flying, the body will be inhaled after the impact of the health of the operator. Why is it often used as a color master and not a toner? Do we pay tribute to the masterbatch factory?

5. Keep the environment clean

6. easy to use
 

What are the basic ingredients of the color masterbatch?

1
Pigments or dyes

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

2
Carrier

Is the matrix of masterbatch. Special color masterbatch generally choose the resin with the same resin as the carrier, the compatibility of the two best, but also consider the carrier of mobility.

3
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.

4
additive

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

What are the varieties and grades?

Color Masterbatch classification methods commonly used are the following:
By carrier classification: such as PE Color Masterbatch, PP Color Masterbatch, ABS Color Masterbatch, PVC Color Masterbatch, EVA Color Masterbatch and so on

According to the use of classification: such as injection masterbatch, blow molding masterbatch, spinning masterbatch and so on. The varieties can be divided into different grades, such as:
1. Advanced injection Color Masterbatch: for cosmetics boxes, toys, electrical appliances and other high-level products.
2. Common injection masterbatch: for general household plastic products, industrial containers and so on.
3. Advanced blown film masterbatch: for ultra-thin products blow molding coloring.
4. Common 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 color masterbatch: for the manufacture of color quality requirements of low-level products, such as trash, low-level containers.
How to distinguish between universal masterbatch and special masterbatch?
Special Color Masterbatch: is based on the user specified for the plastic products, use the same plastic as a carrier made by the color masterbatch. Such as PP Color Masterbatch, ABS Color Masterbatch were selected PP, ABS as a carrier.

Universal Color Masterbatch: A resin (often a low melting point PE) is also used as a carrier, but it can be applied to other resins other than the carrier resin.

Universal masterbatch is relatively simple and convenient, but the more shortcomings, we recommend that you choose a special masterbatch.

Why do many companies do not produce generic masterbuds?

The vast majority of the international masterbatch companies generally do not produce universal masterbatch.
General color masterbatch there are many shortcomings. In fact, the generic masterbatch 'general' range is very small, technical indicators, economic benefits are also poor, specifically in:
1
Poor predictability of coloring effect

Color Masterbatch is used to color, universal masterbatch pigment in different plastics will show a different color, so the poor predictability of coloring effect.

2
Affect the other properties of plastic products

Especially the impact of strength, the product is easy to deformation, distortion, more obvious on the engineering plastics.

3
The cost is higher

Universal Color Masterbatch In order to be able to 'generic', often choose a higher heat-resistant grade of the pigment, causing waste.
Color masterbatch in addition to color, can also have a flame retardant, brightening, anti-static, anti-oxidation, anti-ultraviolet and other functions?
The masterbatch can have several of these functions at the same time, if the factory makes this request.
Sometimes, although the customer did not request, the masterbatch will also recommend the user to add some additives, such as adding some additives in the color masterbatch, such as brighteners and so on. Of course, this will increase the cost of the product.

What is the heat resistance of the color masterbatch?

Special heat-resistant grade of the masterbatch is generally compatible with the plastic used in the product, at normal temperatures, you can rest assured that use. Only in the following circumstances will cause varying degrees of discoloration, first, the temperature is beyond the normal range, one downtime is too long.
What is the difference between granulation and color masterbatch?
Color Masterbatch coloring and granulation compared to color has the following advantages:
1. Coloring and processing of finished products to complete, to avoid granulation coloring of the plastic heating process, to protect the quality of plastic products is good.
2. The most simple production process of plastic products.
3. Can save a lot of power

Does the product coloring with the masterbatch do not fade?

There is no fade products, the use of color masterbatch products are still possible to fade, but for different grades of different products only, some more obvious, and some are difficult to detect.
Masterbatch production process
Product name, vulgar name and process technology
Product Name: Polyethylene, polypropylene, ABS, HIPS / PS, nylon, polyester, polypropylene spinning, pearl, PE cable jacket, communication cable, PE foam, PS foam color Masterbatch.
According to the function is divided into anti-static, flame retardant, anti-aging, through, whitening bright masterbatch.
Color, black, green, red, orange, brown, blue, silver, gold, purple, gray, pink, pearl, imitation marble pattern (rhyolite), wood grain masterbatch.

Masterbatch production process requirements are very strict, the general use of wet process. Color Masterbatch by the water phase grinding, phase, washed, dry, granulated, only the product quality can be guaranteed.

In addition, the pigment should be subjected to a series of tests at the same time as the grinding process, such as the fineness of the sanding slurry, the diffusion performance of the sanding slurry, the solid content of the sand slurry, and the fineness of the paste.

 Color Masterbatch production process has four ways:

 Ink method: As the name suggests, in the masterbatch production using ink color paste production method, that is, through the three-roll grinding, in the pigment surface 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.

The process is as follows:

(1) ingredients mixing coarse paste three roller grinding fine paste two roll plastic extrusion extrusion granulation
(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 device.
Fine color paste rinse and evaporate the concentrate to dry and add the carrier to 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) metal soap method: the pigment after grinding through the particle size of about 1μm, and at a certain temperature by adding soap, so that each pigment particle surface layer is evenly wet by the soap to form a layer of saponification solution, when the metal The salt 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, degree.