Yanchang 50100Y | Blown Film Grade LLDPE, High Toughness General Film Material, Domestic Grade
Product Overview
Yanchang 50100Y is a domestic blown film grade LLDPE produced by Yanchang Petroleum. It adopts butene as comonomer, without slip agent and anti-block agent added.This resin features stable melt flow and wide processing window. Finished films have excellent tear resistance, puncture resistance and low-temperature toughness with uniform and tough texture. It meets food contact safety standards and is suitable for mass production of general packaging films.
Supported by steady domestic supply and high cost performance, it serves as an ideal and cost-effective replacement for imported LLDPE raw materials.
1. Basic Product Specifications
All listed data are typical lab test values for reference only, tested on standard 25μm blown film specimens. This product adopts 100% virgin resin with uniform milky white pellets, free of impurities, black specks and irregular particles to guarantee consistent batch performance. Goods are packed in original 25kg factory woven bags, and official batch COA is available for full quality traceability.
Density: 0.920 g/cm³ (ISO 1183)
Melt Flow Rate (190°C/2.16 kg): 1.0 g/10min (ISO 1133)
MD Tensile Strength: 33 MPa, TD Tensile Strength: 28 MPa
MD Elongation at Break: 850%, TD Elongation at Break: 1050%
MD Tear Strength: 160 g/25μm, TD Tear Strength: 390 g/25μm
Dart Impact Strength: 140 g (dart drop test, 25μm standard film)
2. Core Product Advantages
Balanced rigidity and superior overall mechanical properties
The unique butene copolymer structure achieves perfect balance between rigidity and toughness. The finished film has outstanding tear resistance and puncture resistance. It effectively avoids brittle cracking under low temperature conditions and reduces packaging damage rate, which is applicable to heavy-duty packaging and harsh outdoor working environments.
Ultra-low additive precipitation, excellent secondary processing adaptability
With no built-in slip or anti-block additives, this resin greatly reduces additive blooming and surface precipitation on finished films. It retains stable surface tension to secure reliable ink adhesion and lamination bonding strength, perfectly matching all mainstream film post-processing workflows.
Stable bubble performance, compatible with full-speed film blowing lines
With narrow molecular weight distribution and stable melt strength, this resin maintains steady film bubbles during continuous film blowing. It is compatible with both low-speed and high-speed blown film machines. It ensures smooth production operation and lowers defective rate to improve overall production yield.
Stable domestic supply, reliable safety and wide applicability
As a high-quality domestic LLDPE resin, it has sufficient spot stock and timely delivery, getting rid of long lead time and supply instability of imported materials. It is low-odor and compliant with food contact standards. It also owns good aging resistance and chemical resistance to meet diverse film production demands.
3. Main Application Fields
Food Packaging Films: Common food bags, snack outer packaging films, fresh food packaging films and multi-layer composite food packaging films.
Industrial Packaging Films: Heavy-duty packaging bags, equipment inner lining films, industrial stretch films and industrial waste collection bags.
Agricultural Films: Greenhouse films, farmland mulch films and silage stretch films, featuring high tear resistance and long outdoor service life.
Other Applications: Daily commodity packaging films and base films for courier bags. It can also be blended with LDPE to optimize film processing performance comprehensively.
4. Processing & Storage Guidelines
Processing Parameters
Barrel Temperature: 180–220°C
Die Temperature: 190–210°C
Blow-up Ratio: 2.0–3.3, adjust appropriately according to actual production conditions.
Drying Requirement: Normally stored pellets require no drying. Dry damp pellets at 60–70°C for 1 hour and cool to room temperature before feeding.
Storage Requirements
Store pellets in cool, dry and ventilated warehouses. Keep away from open fire, rainwater, direct sunlight and odorous goods to prevent moisture absorption and odor contamination. Do not stack pallets higher than 5 layers. The shelf life is 2 years under standard storage conditions.
5. Quality Assurance & Supply Service
We provide 100% original virgin Yanchang Petroleum 50100Y raw materials. Official batch COA is supplied for full index inspection. We keep adequate spot inventory all year round. We support free sample testing, small trial orders and full-truck bulk purchases. Professional one-stop technical support is available to meet various production and procurement needs of film manufacturers.
6. Frequently Asked Questions
Q1: Will low melt flow lead to excessive extrusion pressure during film blowing?
A: Its high inherent melt strength offsets partial pressure rise caused by low MFR. Stable extrusion pressure can be maintained during production, and large-scale machine parameter adjustment is not mandatory.
Q2: Is corona treatment needed before printing for this additive-free LLDPE?
A: Routine corona treatment is recommended. The film surface is clean without additive precipitation. Qualified surface energy can guarantee stable printing and lamination bonding effect.
Q3: Is this grade suitable for ultra-thin agricultural films or heavy-duty thick films?
A: It performs well for heavy-duty medium and thick films above 30μm. It is not recommended for ultra-thin films thinner than 20μm due to its low melt flow property.
Q4: What are its advantages compared with ordinary domestic 1.0 MFR LLDPE?
A: It has better low-temperature toughness, more stable film bubble and more uniform film thickness. Meanwhile, it has smaller batch quality fluctuation than common domestic equivalent LLDPE grades.
Q5: Will drying damp pellets damage original film toughness?
A: Standard drying process will not damage product performance. It only removes surface moisture without destroying internal molecular structure, so the original mechanical toughness of films remains unchanged.
7. Product Summary
Yanchang 50100Y is a cost-effective domestic blown film LLDPE without slip agent and anti-block agent. It has stable film bubble performance, excellent mechanical toughness and complete food contact certification, supporting smooth mass production.
As a high-quality domestic alternative to imported LLDPE, it is widely used in food packaging, industrial packaging and agricultural film industries. It helps film manufacturers effectively cut raw material cost and improve production efficiency.Please contact us for free samples, official COA reports, complete technical documents and competitive bulk quotations.
