Masterbatch/Engineering Plastics/Cable Material/Photovoltaic Film/Dope Dyeing/Lithium Battery Film/
Industrial Applications and Processing
The processing of color masterbatch has strict requirements for mixing process and equipment: pigments, additives and basic resin components must be absolutely and completely accurately measured, and then uniformly dispersed and mixed into the basic resin through the mixing system such as twin-screw extruder and internal mixer.
The concept "color masterbatch" describes a resin matrix that has additives or pigments concentrated in it. Color masterbatch is for the most part a standard 3-5mm measure molecule, and there are too 1mm microparticles. Accordingly,
Color masterbatches are typically divided into three categories: white, black, and color, depending on the various types of pigments used. Premixing, separate addition, or color matching processes can be used in the production of color masterbatch.
At present, most of the domestic color masterbatch production, pigments, additives and basic resin components are premixed, and the formula is completed by simple metering and conveying device or manually before premixing; This process has low degree of automation, poor accuracy of formula and great environmental pollution. In recent years, in the production of black-and-white masterbatch, the weight loss scale is used to increase the separate addition process, which improves the accuracy and stability of the formula and reduces environmental pollution.
Masterbatch Typical Application:
-Color Masterbatch
-Special pigment effect masterbatch, such as pearlescent Masterbatch
Measurement plan
- Color Matching Process
- Replace with Blending Process
1. Feed bin
2. Refill valve
3. Feed tube
4. Loss-In-Weight batch feeder
5. Twin screw extruder
The color matching process is generally a high-end application. Different toners are fed separately using a loss-in-weight feeder and added to the extruder, where the plastic is mixed to produce the desired color product. The matrix resins commonly used in this process are PE, PP and PA, PET. Accurate loss-in-weight feeders ensure acceptable final product quality.
Typical raw material composition
- Resin: particles, bulk density 0.5-0.7Kg/L; good fluidity
- Toner: powder, bulk density 0.2-0.4Kg/L; poor fluidity
- Auxiliary: powder, bulk density 0.2-0.4Kg/L; general fluidity
- Auxiliary: mixing of granules and powder, bulk density 0.3-0.4Kg/L; general fluidity
Process characteristics
- Each raw material is individually cut and accurately measured, so it is very simple and convenient in batching operation
- Just clean the toner feeder and refill section
- The site is relatively clean and easy to control
- It has certain advantages for production lines that require a certain color change frequency
- The toner and other raw materials are not soaked in advance, so the dispersion requirements of the extruder are relatively high
Common equipment composition
- Refill bin
- Refill valve
- Loss-in-weight feeder
- Aggregate silo
- Twin screw extruder or continuous mixer
SS45 loss-in-weight screw feederSS72 Loss-in-Weight Screw FeederST22 Loss-in-weight Screw FeederST36 loss-in-weight screw feederST50 loss-in-weight screw feeder
Advantage of Sonner Loss in Weight Feeders:
- Even a small amount of feeding can ensure stable feeding accuracy
- Excellent anti-bridging performance, our flow control is more accurate in the face of difficult-to-feed toner
- Tool-free quick-release design makes clean replacement easy
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Sonner Equipment Consultant
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