Engineered specifically for cast film extrusion, blown film, and high-speed multi-layer packaging systems.
In high-speed polyethylene (PE) cast film manufacturing, achieving ultra-thin gauge consistency, optical transparency, and mechanical integrity while maintaining vibrant, unyielding coloration presents complex physical and chemical challenges. Unlike conventional blown film processing—where melt inflation provides multidirectional molecular orientation and longer cooling cycles—cast film extrusion relies on flat-die extrusion directly onto chill rolls running at linear speeds exceeding 300 to 500 meters per minute.
As an established Custom Packaging Cast Film PE Masterbatch Company & Manufacturer, Changzhou Jiazhou Plastic Products Co., Ltd. custom engineers specialized polyethylene carrier matrices (utilizing Metallocene LLDPE and LDPE blends) that precisely match the melt flow index (MFI) and shear viscosity of parent packaging resins. Standard color concentrates often induce melt fracture, die-lip buildup (drool), and pinhole tears when subjected to extreme shear rates. Jiazhou’s advanced formulation technology resolves these issues by optimizing carrier resin compatibility, pigment surface modification, and dispersing aid chemistry.
Selecting the correct carrier resin for cast film applications is vital to prevent interfacial instability between multi-layer co-extrusion structures (e.g., A/B/C 5-layer or 7-layer stretch and barrier films). The table below outlines the core technical specifications of our engineering masterbatches compared to standard market alternatives:
| Technical Parameter | Jiazhou Cast Film Masterbatch | Standard Blown Film Masterbatch | Test Method / Compliance |
|---|---|---|---|
| Melt Flow Index (MFI @ 190°C/2.16kg) | 12.0 – 25.0 g/10 min (Custom Tunable) | 2.0 – 8.0 g/10 min | ASTM D1238 / ISO 1133 |
| Carrier Resin Type | Metallocene LLDPE / Low-Density PE | Standard LLDPE / HDPE Blend | FTIR / NMR Analysis |
| Pigment Dispersion (Particle Size) | < 1.2 Microns (Ultra-fine) | 5.0 – 10.0 Microns | Laser Particle Size Analyzer |
| Filter Pressure Value (FPV) | ≤ 0.8 bar/g (Mesh size 14μm) | > 3.5 bar/g | DIN EN 13900-5 Standard |
| Thermal Stability Threshold | Up to 260°C – 280°C (Non-yellowing) | 200°C – 220°C | ISO 305 / TGA Analysis |
| Volatile Organic Content (VOC) | < 0.05% (Zero smoke/odor) | > 0.35% | Headspace GC-MS |
From high-tack pallet stretch wrap to food-grade barrier films, Jiazhou provides purpose-built color and performance additives.
Formulated with ultra-high loading carbon black or specialized UV-stabilized pigments (UV-944/770 additives). Ensures 300% elongation retention without pigment migration or stretch tear failures.
Fully compliant with FDA 21 CFR 177.1520 and EU 10/2011 regulations. Heavy-metal-free and low-odor formulations designed for multi-layer PE/PA/EVOH co-extruded food wraps and standing pouches.
High-opacity TiO2 white masterbatches providing superior whiteness index (>95) and light barrier protection for sanitary napkin backsheet films, medical drapes, and surgical protective apparel.
High-opacity co-extrusion masterbatch systems offering total light blocking (>99.9% opacity) for privacy protection, high puncture resistance, and seamless corona treatment compatibility for crisp printing.
Pioneering sustainable, intelligent polymer additive matrix systems to empower next-generation packaging technologies.
Specially engineered with reactive functionalized polymer chains that bridge mismatched degradation gaps in Post-Consumer Recycled (PCR) PE resins. Enables up to 50% PCR integration in cast stretch films without mechanical property decay or severe optical hazing.
Next-gen synthetic silica spherical nano-particles combined with non-migrating erucamide slip agents. Eliminates die-lip accumulation, dramatically reduces coefficient of friction (COF < 0.15), and maintains crystal-clear optical transparency on 10-micron cast lines.
Integration of automated optical spectrophotometers across Jiazhou’s twin-screw compounding lines. Delivers real-time delta-E (ΔE < 0.3) color calibration across continuous 20-ton production batches for flawless batch-to-batch color repeatability.
Located in Zouqu Town, Zhonglou District, Changzhou, Jiangsu Province, Changzhou Jiazhou Plastic Products Co., Ltd. represents the apex of modern Chinese plastic masterbatch manufacturing. Situated within the Yangtze River Delta industrial cluster, Jiazhou profits from immediate proximity to premier petrochemical refineries, providing direct access to premium virgin Polyethylene (LLDPE, LDPE, HDPE) raw materials and raw pigment supplies.
Our 6,000 square meter state-of-the-art facility operates multiple high-torque twin-screw extruders integrated with continuous gravimetric loss-in-weight feeders. This guarantees precise dosing accuracy down to ±0.1%, eliminating human error and batch inconsistencies. Through Industry 4.0 digital manufacturing controls, Jiazhou yields an annual masterbatch capacity surpassing tens of thousands of metric tons, servicing multinational flexible packaging converters with uncompromised agility.
Procurement teams in North America, Europe, Southeast Asia, and the Middle East face growing pressure to reduce raw material costs without compromising film line performance. Jiazhou bridges this gap by offering direct OEM manufacturing advantages:
For global procurement directors and quality assurance managers, selecting an offshore PE Masterbatch Company & Manufacturer requires rigorous auditing across operational, metallurgical, and chemical dimensions. Below is the step-by-step verification framework advocated by Jiazhou for evaluating masterbatch quality before mass adoption:
Confirm that the masterbatch carrier polymer matches the matrix resin of your cast line (e.g., LLDPE carrier for LLDPE/mPE stretch film). Mismatched carrier polymers cause phase separation and haze defects.
Request the Filter Pressure Value (FPV) report. A low FPV (< 1.0 bar/g) verifies that pigments are fully deagglomerated down to sub-micron scales, preventing filter screen clogging and film pinholes.
Ensure the organic pigments retain heat stability up to 260°C – 280°C. Lower-tier pigments degrade at high cast die temperatures, causing color shifts and toxic off-gassing.
Verify third-party SGS/Intertek certificates confirming compliance with RoHS, REACH, and FDA 21 CFR standards. Ensure zero lead, cadmium, hexavalent chromium, or PBB/PBDE content.
Expert technical solutions for process engineers, production managers, and procurement specialists.
Cast film lines operate at drastically higher linear speeds (up to 500 m/min) and shear rates compared to blown film lines. Cast film dies have very tight die gaps, making them prone to melt fracture, die drool, and gauge variation if the masterbatch MFI is too low or contains poorly dispersed agglomerates. Jiazhou’s Cast Film PE Masterbatches use high MFI carrier resins (12–25 g/10min) and ultra-fine pigment dispersion (FPV < 0.8 bar/g) to ensure flawless flow and zero die buildup at elevated line speeds.
Pigment migration occurs when low-molecular-weight organic dyes or low-quality additives dissolve into the polymer matrix and bleed onto the surface or food contact layer. Jiazhou utilizes only high-molecular-weight organic and inorganic pigments with high crystal stability, combined with fully polymerized PE carrier matrices. Our formulations pass rigorous overall migration testing (OMT) according to EU Regulation No 10/2011 and US FDA standards.
Due to our high pigment loading concentrations (e.g., 50%–70% TiO2 in white masterbatch and up to 40% organic pigments in color lines), the standard let-down ratio ranges between 1% and 4% depending on film thickness and desired opacity. For ultra-thin cast stretch films (12 to 20 microns), a 1.5% to 2.5% dosage typically yields optimal color depth without compromising film mechanical strength.
Yes. Our R&D lab features advanced color-matching hardware including X-Rite and Datacolor spectrophotometers. Customers can provide a Pantone code, RAL number, or a physical plastic sample. We develop matching formulations, measure color variance (ΔE < 0.3), and ship 1kg pilot samples for testing within 72 hours.
All standard Jiazhou PE masterbatches are thermally stable up to 260°C, with specialized high-temperature grades reaching 280°C to 300°C. This ensures zero thermal degradation, discoloration, or polymer chain scission during high-temperature cast die extrusion.
Products are packed in 25kg moisture-proof heavy-duty PE bags or aluminum-foil vacuum bags, stacked on fumigated wooden pallets or plastic pallets with protective shrink wrap. We also offer 1,000kg jumbo bulk bags upon request to streamline automated conveying lines.
Our standard production lead time is 7 to 15 days upon order confirmation. Thanks to our location near Shanghai and Ningbo ports, ocean freight logistics can be arranged rapidly to meet strict buyer delivery schedules.
You can contact our international engineering team directly via email or telephone (+86-15861161116 / [email protected]). Specify your application, extrusion type (cast or blown), target color, and monthly volume requirements to receive a TDS, SDS, and competitive FOB/CIF quotation within 12 hours.
High-concentration, eco-friendly, heat-resistant formulations for every processing method.
