Introduction
In the production and application of plastic sheets, INCHR@ Anti block masterbatch is a key additive that improves product quality. Especially for PET (polyethylene terephthalate) sheets and BOPET (biaxially oriented polyethylene terephthalate) sheets, their performance and stability directly affect the processing efficiency and terminal application effect of the sheets. This article will start from the two dimensions of performance and stability and deeply analyze the performance of INCHR@ Anti block masterbatch in these two sheets..
Performance Advantages
1. PET Sheet Applications
Key Use Cases: Food packaging, electronic films
Challenge: High surface tension causing sheet adhesion
Solution: Incorporation of silica/talc-based anti-block particles creates micro-protrusions on sheet surfaces, reducing contact area by >70%.
Efficiency Gains:
0.8–1.2% dosage extends continuous production time
30% average increase in line efficiency
Reduced shutdowns for adhesion-related cleaning
Optical Properties:
Only 2–3% transmittance reduction
Maintains food packaging transparency requirements
2. BOPET Sheet Performance
High-Tech Applications: Premium packaging, electrical insulation
Critical Process: Biaxial stretching (180–230°C)
Performance Metrics:
Parameter Without Masterbatch With INCHR® Masterbatch Friction Coefficient 0.8 0.3–0.4 Winding Tension Irregular Uniform Surface Defects Significant Minimized Quality Impact:
Eliminates wrinkles and surface damage
Increases product yield
Stability Considerations
1. Chemical Stability
Thermal Resistance:
PET Processing: 250–280°C
BOPET Stretching: 180–230°C
Key Features:
Inert inorganic particles (silica)
Silicone-modified surface treatment
Zero chemical reaction with PET resin
Safety Compliance: Prevents discoloration/odor; meets food-contact hygiene standards
2. Storage & Processing Stability
Storage Requirements:
Temperature: 10–30°C
Humidity: <60% RH
Shelf Life: 12–18 months
Processing Advantages:
Moisture-proof packaging prevents agglomeration
Twin-screw extrusion ensures uniform dispersion (1–3μm particle size)
Eliminates “white spots” and “crystal spots”
Conclusion
In summary, INCHR@Anti block masterbatch has become a core additive for improving the quality of sheets in PET and BOPET sheets with its excellent anti-adhesion performance and stable chemical and usage performance. With the continuous advancement of material technology, anti block masterbatch will develop in a more efficient, environmentally friendly, and stable direction in the future, injecting new vitality into the plastic sheet industry..
