Anti-block & Slip Masterbatch Optimization for Stretch Film
At Perfect Colourants & Plastics Pvt.Ltd, we’ve helped numerous clients achieve the highest quality plastic products that perform efficiently during processing and end applications. One of the clients, a stretch film manufacturer, approached us to solve an ongoing performance challenge of manufacturing high clarity stretch films. Their product portfolio primarily includes stretch films designed for high-speed automated wrapping machines. With increasing demand for premium-quality transparent stretch films, we were thrown a challenge to resolve the performance challenge without compromising on visual appeal.
Client Challenge
The client was producing high-clarity stretch films for automated pallet wrapping but faced the recurring issue of performance during production and end applications. This included film surface friction, sticking issues and poor mould release. We aimed to help achieve the perfect balance between transparency and unwind performance.
Key Issues We Discovered
➤ Film layers start sticking to each other during roll storage.
➤ Inconsistent unwind force on automatic wrapping machines.
➤ Increased haze using ordinary anti-block additives.
➤ Their customers complained of poor machinability & handling.
They tried to increase the dosage of ordinary anti-block additives, but this, in turn, impacted the transparency of the film. Also, higher dosage of conventional slip additives caused unstable COF (Coefficient of Friction) and surface migration. The client needed a solution that could maintain clarity while ensuring a smooth and consistent unwind performance.
Our Approach
As a leading masterbatch manufacturer in India, our team began with a detailed analysis of:
➤ Base polymer used
➤ Film thickness and extrusion process
➤ Existing additives used and dosage levels
➤ Targeted haze, COF and unwind force needed
We developed an anti-block and slip masterbatch that was specific to stretch film and performance-centric. Our anti-block and slip masterbatches were optimized with:
➤ Controlled particle size of the anti-block agent to reduce light scattering without increasing haze
➤ Non-blooming slip additive masterbatches for stable COF over a period of time
➤ Excellent dispersion to avoid surface defects and speck formation
➤ Optimized formulation for stretch film processing temperatures
➤ Achieve a balance between surface roughness and transparency
Performance Results Achieved
Our technical team ensured the MBs met performance parameters and consistent results in real-production conditions. We helped achieve:
#1 Better Optical Clarity
➤ Up to 20% reduced haze as compared to the previous ordinary additives
➤ Improved load visibility and clear film appearance
➤ No visible surface defects, roughness or whiteness
#2 Optimized Unwind Performance
➤ upto 40% reduction in unwind force and noise-free unwinding
➤ Improved performance at high-speed automated wrapping
➤ Consistent COF throughout
#3 Superior Anti-blocking Performance
➤ Easy film roll separation even after long-term storage
➤ No film layers are sticking, even under higher temperature and pressure conditions
Client Outcome
By partnering with PCPPL, our client received a balanced formulation instead of a high-loading additive that practically added to their issues. With Perfect Colourants & Plastics Pvt.Ltd, our client successfully achieved:
➤ High clarity stretch films
➤ Smooth & controlled unwind performance
➤ Stable processing under varying processing
As an additive masterbatch manufacturer in India, our ability to tailor formulations based on real processing conditions allows our clients to overcome performance challenges while maintaining quality standards. So, if you are looking to elevate your plastic manufacturing to the highest industry standards, trust PCPPL. Call us to discuss your requirements.
