Ningmei 1100N Homopolymer PP Raffia Grade | Extrusion Resin for Woven Sacks & Dry Food Packaging

Product Overview

Ningmei 1100N is virgin homopolymer polypropylene produced by Ningxia Coal Industry’s coal-to-olefin gas-phase plant, customized for high-speed flat yarn extrusion. With narrow molecular weight distribution, steady melt tension and balanced tensile strength, it effectively lowers filament breakage during continuous raffia production.Equipped with a clean formula only added thermal stabilizer, the resin has low ash and zero additive migration, complying with GB 4806.6, FDA and EU food contact standards. Every batch is attached with official COA for full quality traceability. Supported by large-scale integrated coal chemical production capacity, the product delivers long-term stable supply and favorable cost performance for manufacturers of woven sacks, binding ropes and daily plastic packaging. Its wide extrusion processing window cuts frequent parameter adjustment and molding defects to raise overall line efficiency.

Basic Product Specifications

All data are typical values tested at 23°C on standard 4mm injection specimens, 100% uniform milky white virgin pellets packed in original 25kg woven bags.

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)

Elongation at Break: 150% (ISO 527, 50mm/min)

Flexural Modulus: 1350 MPa (ISO 178)

Notched Izod Impact (23℃): 2.3 kJ/m² (ISO 180)

Heat Deflection Temperature (0.45MPa): 89°C

Ash Content: ≤0.03%

Additive System: Single thermal stabilizer, no extra slip or anti-block additives

Core Product Advantages

Stable Tensile Performance for High-Speed Raffia

High crystallinity homopolymer PP provides sufficient structural rigidity and uniform stretching performance, perfectly matching high-speed flat yarn extruders to reduce broken filaments. Woven sacks and binding ropes maintain stable dimensional stability under static load to extend service life.

Low Auxiliary Migration & Food Contact Safety

No slip or anti-block masterbatch is compounded during polymerization, greatly reducing additive bloom and surface migration risks. It will not contaminate grain and dry food inside woven packaging, fully satisfying strict domestic and export food packaging safety standards.

Moderate Chemical Resistance

It resists dilute acid, dilute alkali, water and alcohol daily chemicals to extend the service life of woven storage sacks and cut replacement costs. Not resistant to strong aromatic and ester organic solvents, unsuitable for long-term contact with highly corrosive media.

Smooth Extrusion Processability

Medium melt flow enables homogeneous plasticization for long-cycle uninterrupted production, minimizing bubble and uneven thickness defects. Compatible with mainstream single-screw raffia extruders to lower reject rates and improve overall production yield.

Main Application Fields

Food Contact Woven Packaging

Food-grade woven sacks, dry grain storage bags and non-oily cold food rigid containers, applicable for food packaging with full food contact compliance.

Industrial Woven Articles

Core raw material for industrial woven sacks, binding ropes, fishing nets and civil geotextiles.Note: This homopolymer PP has low low-temperature impact and no UV stabilizers. It cannot be used for gears, bearings, low-temperature working parts and long-term outdoor structural components.

Processing & Storage Guidelines

Processing Parameters

Extrusion temperature: 190–225°C (feed zone 190–200℃, metering zone 210–225℃). Reference blending ratio of resin to color masterbatch/antioxidant is 95:5; small-batch trial runs are required before mass production.Drying requirement: Ultra-low moisture absorption below 0.01%, pre-drying unnecessary under sealed dry storage. Dry damp pellets at 60–70°C for 1–2 hours to prevent thermal yellowing and molecular degradation.

Storage Requirements

Storage environment: Cool, dry and ventilated warehouse, temperature 0–30°C, relative humidity below 60%.Stacking limits: Do not stack bags over 5 layers to avoid packaging deformation and pellet compaction affecting feeding.Shelf life: 2 years under standard storage conditions, follow first-in first-out management rules. Isolate from direct sunlight, heat sources, open fire and strong organic solvents.

Frequently Asked Questions

Q1: What is the melt flow rate of Ningmei 1100N?A: Its MFR is 3.0 g/10min under ASTM D1238 (230°C / 2.16kg), matching most mainstream high-speed flat yarn extruders.

Q2: Can this resin be used for food contact packaging?A: Yes. The clean low-migration formula meets GB 4806.6, FDA and EU food contact standards, suitable for dry grain and cold food woven packaging.

Q3: How to store pellets to guarantee stable performance?A: Store in cool dry warehouse within 0–30°C with humidity below 60%, stacking height limited within 5 layers, and use up within 2 years following FIFO rules.

Q4: Is it suitable for long-term outdoor use?A: Original pellets contain no UV anti-aging additives and will turn yellow and brittle after long-time sunlight exposure. Add UV masterbatch if outdoor application is needed.

Q5: Is the supply of 1100N stable?A: Supported by Ningxia large coal-to-olefin integrated plant, we maintain full-year sufficient spot inventory and consistent batch quality to support long-term bulk orders.

Product Summary

Ningmei 1100N is a cost-effective homopolymer PP specially designed for flat yarn extrusion, boasting balanced tensile rigidity, low additive migration and stable processability. It is widely used in food-contact woven sacks and general industrial woven products, perfectly meeting the mass production needs of manufacturers engaged in sack, rope and food packaging production.

Backed by standardized large-scale coal chemical production and stable year-round inventory, we provide complete supporting documents including TDS, multi-region food contact compliance certificates and original batch COA, as well as professional technical guidance for raffia production lines.

For detailed technical parameters or bulk wholesale quotations, please contact our sales team directly for one-stop raw material supply and comprehensive after-sales service.