Ningmei MB6430 Homopolymer PP Raffia Grade | High Tensile Extrusion Resin for Woven Sacks & General Packaging
Product Overview
Ningmei MB6430 is high-quality homopolymer polypropylene resin manufactured by Ningxia Coal Industry’s coal-to-olefin plant, dedicated to flat yarn extrusion and woven fabric production. Adopting mature gas-phase polymerization technology, it features narrow molecular weight distribution and stable melt tension to lower filament breakage during high-speed raffia production lines.It delivers balanced tensile strength and moderate rigidity, with clean base formula only added thermal stabilizer, no extra slip or anti-block additives, meeting global food contact safety standards for dry food woven packaging.
All batches pass full industrial analysis testing with complete factory COA for quality traceability. Supported by large-scale stable chemical production capacity, the product maintains consistent batch quality and steady supply to control manufacturers’ raw material cost.The resin runs smoothly on single-screw extruders for continuous mass production, with a wide processing window that reduces frequent equipment parameter adjustment and molding defects. It complies with GB 4806.6, US FDA and EU 10/2011 food contact regulations, suitable for daily woven goods and general rigid packaging with strict safety requirements.
Basic Product Specifications
All data are typical values tested on standard 4mm injection specimens at 23°C, packed in 25kg original woven bags with uniform milky white pellets free of black specks and gels.
Density: 0.905 g/cm³ (ISO 1183)
Melt Flow Rate: 3.0 g/10 min (ASTM D1238, test condition: 230°C / 2.16kg)
Tensile Yield Strength: 32 MPa (ISO 527, 50mm/min test speed)
Elongation at Break: 140% (ISO 527, 50mm/min test speed)
Flexural Modulus: 1360 MPa (ISO 178)
Notched Izod Impact (23℃): 2.2 kJ/m² (ISO 180)
Heat Deflection Temperature (0.45MPa): 89°C
Core Product Advantages
Balanced Rigidity & Stable Tensile Performance
High crystallinity homopolymer PP brings reliable structural rigidity and uniform stretching performance, perfectly matching high-speed flat yarn drawing equipment to cut broken filament defects. Woven sacks, binding ropes and civil geotextiles maintain stable dimensional stability under static load to extend service life.
Low Auxiliary Migration for Food Safety
Only thermal stabilizer is compounded during polymerization without slip or anti-block additives, greatly reducing additive bloom and surface migration risks. It avoids contaminating dry grain and cold food inside woven packaging, fully satisfying strict food contact safety standards.
Moderate Chemical Resistance
It maintains stable performance when contacting dilute acid, dilute alkali, water and alcohol daily chemicals, lowering replacement frequency of woven storage sacks. It cannot resist strong aromatic and ester organic solvents, not recommended for long-term contact with highly corrosive media.
Stable Extrusion Processability
Controlled medium melt flow ensures homogeneous plasticization for long-cycle uninterrupted extrusion, minimizing uneven thickness and bubble defects. Compatible with mainstream raffia extruders to reduce reject rates and improve overall line efficiency.
Main Application Fields
Food Contact Woven Packaging
Food-grade woven sacks, dry grain storage woven bags and rigid cold food containers, applicable for non-oily food packaging relying on low migration and food compliance features.
Industrial Woven Articles
Core raw material for industrial woven sacks, binding ropes, fishing nets and civil geotextiles. Not suitable for gears, bearings, chemical liquid storage tanks and long-term outdoor structural parts due to low inherent UV resistance and weak low-temperature impact toughness.
Processing & Storage Guidelines
Processing Parameters
Extrusion temperature range: 190–225°C (feed zone 190–200℃, metering zone 210–225℃). Reference blending ratio of base resin to color masterbatch/antioxidant is 95:5; small-batch trial production is required before mass formula application.
Drying requirement: Ultra-low moisture absorption below 0.01%, pre-drying unnecessary under sealed dry storage. If pellets absorb moisture, dry at 60–70°C for 1–2 hours to prevent thermal degradation and yellowing.
Storage Requirements
Storage environment: Cool, dry and ventilated warehouse, temperature 5–30°C, relative humidity below 60%. Stacking limit: No more than 5 layers to prevent bag deformation and pellet compaction affecting feeding.Shelf life reaches 2 years under standard storage, follow first-in first-out management. Isolate from direct sunlight, heat sources, open fire and strong organic solvents to avoid aging and contamination.
Frequently Asked Questions
Q1: What is the quality warranty period of MB6430?A: One-year quality warranty from delivery date. Free replacement service is provided for factory-caused parameter and impurity defects under standard storage and processing; damage from improper storage or wrong operation is excluded.
Q2: Can customized formula modification be supported?A: Custom color matching via color masterbatch blending is available; base resin molecular performance cannot be adjusted without special polymerization customization. Submit detailed production demands to sales team for technical evaluation.
Q3: How to guarantee intact quality during transportation?A: Thickened tear-proof woven bags with rainproof outer film are used for full-container shipments. Reliable chemical logistics minimize moisture and collision pollution; complete batch COA documents are attached for incoming inspection.
Q4: What is the minimum order quantity?A: Standard MOQ is one full 25-ton container load; flexible small-batch supply can be negotiated for long-term cooperative customers.
Q5: How to obtain correct extrusion operation guidance?A: Complete raffia extrusion parameter manuals are delivered per order. Professional technical support team provides online parameter adjustment consultation for high-speed flat yarn production lines.
Product Summary
Ningmei MB6430 is cost-effective homopolymer PP dedicated to flat yarn extrusion, featuring balanced tensile rigidity, low additive migration and stable extrusion processability. Widely applied in food contact woven sacks and general industrial woven goods, it meets mass production demands of woven bag, rope and packaging manufacturers.Supported by Ningxia Coal Industry’s standardized coal-to-olefin production line and year-round sufficient inventory, we supply complete TDS, multi-region food contact compliance certificates and original batch COA documents, alongside professional extrusion technical guidance for raffia manufacturers.If you need detailed technical parameters or bulk purchase quotations, please contact our sales team directly for one-stop raw material support and after-sales service.
