What is the Color Masterbatch Making Exturder?
1.The color masterbatch making extruder is specially used for the manufacture of masterbatches and is the best masterbatch manufacturing machine. It has a small space inside the double dowel rod, which is better for mixing the material when it is bitten in opposite and same direction. It can produce the best quality masterbatches.
2.The twin-screw extruder solves the key technical problems in the process of masterbatch processing in the past, gets high-end masterbatch products that meet the needs of social development, and improves the quality of masterbatch products, reduces the waste of raw materials in the process of switching between different color varieties and other key technical bottlenecks.
3.The twin-screw extruder screw eating capacity is high, the filling rate of the material in the screw is greatly increased, the output is large. High linear speed, strong shear force, the higher the material filling rate the closer the material will be to the small circle, the shear rate will be reduced, at the same time because the material filling rate is higher, the chance of metal friction between the screw and the barrel is reduced. Achieved lower energy consumption of the product, higher product quality, longer equipment life, better stability.
4.Radial cooling water channel design and high quality heating elements improve temperature control efficiency while also reducing the temperature distribution and thermal deformation of the barrel, avoiding the resulting local shear heat and hardware wear, and improving the service life of equipment and parts.
What is the Color MasterBatch?
It consists of three basic elements: pigment or dye, carrier and additive, and is an aggregate obtained by uniformly loading an extraordinary amount of pigment or dye into resin. To put it simply, color masterbatch is a kind of aggregate made by evenly loading an extraordinary amount of pigment or dye into resin.
The Basic Components of Color Masterbatch
Masterbatch is not a pure pigment, it is a mixture of several substances. It includes pigment/dye, carrier (e.g. resin) and dispersant (e.g. polyethylene low molecular wax, stearate). Some specific requirements also have additives (e.g. for flame retardant, brightening, antibacterial, antistatic, antioxidant purposes).
What is the use of color masterbatch
What is the Use of Color Masterbatch?
Color masterbatches are highly concentrated, high performance color formulations. It is closely related to our life and can be found everywhere in our application products. They can be used for coloring plastics, tubes, packaging, electrical housings, films, moisturizing materials, clothing fibers, and other products, and also have the function of improving the unique performance of products.
According to the grade classification of color masterbatch, the scope of use includes the following categories
1.High-grade injection masterbatch
Used for cosmetic packaging boxes, toys, electrical appliance shells and other high-grade products.
2.General injection masterbatches
Used for general daily-use plastic products, industrial containers, etc.
3.High-grade blown film masterbatch
Used for blow molding coloring of ultra-thin products.
4.Ordinary blown film masterbatch
Used for blow molding coloring of general packaging bags and woven bags.
Used for textile fiber spinning coloring, with fine pigment particles, high concentration, strong coloring power, good heat resistance and light resistance.
6.Low-grade color masterbatch
Used for manufacturing low grade products which do not require high color quality, such as garbage cans, low grade containers, etc.
7.Special color masterbatch
The masterbatches are made by using the same plastic as the carrier according to the plastic species specified by the user for the products. For example, PP masterbatch and ABS masterbatch use PP and ABS as carriers respectively.
It also uses a certain resin (often PE with low melting point) as a carrier, but it can be used for coloring other resins besides its carrier resin.
Can I Get More Economic Value From Using A Color Masterbatch Extruder?
Yes. In summary, it can be seen that both in terms of ease of use of colorant products, coloring effect, healthiness of use, etc., and for plastic products to enhance color masterbatches are widely recognized recommended and more able to bring economic benefits to manufacturers. The use of twin-screw extruders to manufacture masterbatches is the best solution to obtain the best quality and reduce economic costs.
The twin-screw extruder can not only make masterbatches, but also PP modified granules, PE modified granules, ABS granules, PA66/PA6 granules, cable granules, filled masterbatches, plastic dyeing granules, plastic recycling granules, engineering plastic granules, functional masterbatches, plastic toughening granules, special plastic granules, etc.
The Advantages of Color Masterbatch
Masterbatches have obvious advantages compared to color powders.
It improves the problem of environmental pollution caused by the flying of color powder. It is easy to change the color during use and no special cleaning of the extruder hopper is necessary.
It is easy to change colors during use and does not require special cleaning of the extruder hopper. It is highly specific and has correct color matching.
The use of color masterbatch can reduce the aging of resin performance caused by the secondary processing of plastic products, which is conducive to the improvement of the service life of plastic products.
Compatibility is significantly better than color powder coloring, especially for the production of film and spun silk products.
Unlike color powders, masterbatches do not cause flying powder, especially for users who do not inhale them, causing health hazards.
The granular form makes masterbatches easier to store and handle.
Widespread use of masterbatches
This makes masterbatches a better choice for manufacturers and buyers who choose them as a colorant.
How masterbatch extruder makes masterbatch
How Color Masterbatch Extruder Makes Color Masterbatch?
1.Configuring raw materials
Through the automatic loss-in-weight weighing scale, various raw and auxiliary materials are configured according to the product formula ratio to ensure that the ratio of various raw and auxiliary materials meet the product formula requirements.
The material is fed into the twin-screw extruder through the loss-in-weight scale automatically, the material is electrically heated and sheared to melt and mix the mixture, mainly in the steps of material extrusion, melting, shearing and mixing, vacuuming and shearing again so that various additives are evenly dispersed in the polymer, and the polymer melt is extruded through the die hole of the extruder head.
The polymer melt extruded from the extruder is cooled to a solid-state using circulating water or air.
The cooling water is blown off the polymer strip.
Pelletizing of polymer strips to obtain plastic pellets.
To remove the plastic particles that are too long, too short, etc. and do not meet the particle size requirements, and get the plastic particles that meet the specified size products.
7.Homogenizing horizontal mixer
The granular modified plastic body is sent into the homogenizing bin to ensure the uniformity of each bin.
8.Packing and packaging machine, electronic scale
The products are packed according to the specified weight, and the characters of product name, grade, color number, weight and production batch number are printed on the bags.
The Color Masterbatch Manufacturing Process FAQs
The importance of the masterbatch extruder, a good masterbatch extruder makes a big difference in the use of the masterbatch
1.The common defect of color masterbatch is the streak-like pigment band in the product under sunlight. There are two reasons for this problem.
Plastic physical and mechanical properties: the injection moulding machine does not add certain backpressure, and the mixing effect of the screw is not good.
Plastic moulding process: the temperature of the injection moulding equipment is not well controlled, and the color masterbatch cannot be fully mixed with the resin after entering the mixing cavity. The dispersion of the color masterbatch is not good or the resin is not plasticized well.
2.Solution: Increase the temperature of the mixing cavity by the drop port slightly. Apply some back pressure to the injection moulding machine.
After using a certain color masterbatch, the product seems to break easily.
This may be due to the poor quality of dispersants or auxiliaries selected by the manufacturer, which may cause poor diffusion and mutual solubility and affect the physical and mechanical properties of the products.
The color is too dark (too light) after using the color masterbatch according to the ratio on the instruction manual.
3.First of all, check whether the resin variety matches with the masterbatch and whether the measurement is accurate, then adjust the machine temperature or speed, if there is still a problem, contact the masterbatch manufacturer to avoid the manufacturer changing the resin variety at will.