Supermarket Label Strip PVC Granules
Overview
Supermarket Label Strip PVC Granules are engineered polyvinyl chloride compounds tailored for extrusion into thin, flexible strips used in retail labeling systems. These granules incorporate plasticizers, stabilizers, and modifiers to achieve optimal balance between durability and print receptivity. Developed to meet the demands of high-volume retail environments, they resist tearing, moisture, and chemical exposure from cleaning agents. Manufacturers often customize formulations with additives like UV inhibitors for outdoor use or anti-fog agents for refrigerated sections.
Physical and Chemical Properties
The granules exhibit Shore A hardness of 70–90, tensile strength of 10–15 MPa, and elongation at break exceeding 200%. Their low moisture absorption (<0.1%) prevents dimensional changes in humid conditions. Chemically, they demonstrate resistance to alcohols, weak acids, and fats—critical for environments where spills occur. Optical properties include 85–92% light transmission for transparent grades, with haze <5% to ensure barcode scanner readability. Flame-retardant variants (UL94 V-2 rated) are available for safety compliance.
Main Applications
Primary use includes extruded label holders for shelf edges in supermarkets, featuring channels to slide in paper/plastic price tags. Specialty grades produce tamper-evident security strips for high-theft items. Secondary applications extend to pharmacy labeling systems, warehouse bin markers, and exhibition display strips. Recent innovations include RFID-compatible formulations that maintain signal transparency while providing structural support for embedded chips.
Safety and Storage
While PVC itself is stable, some plasticizers (e.g., phthalates) may require compliance documentation for food-contact applications (FDA 21 CFR 177.1520). Always request Material Safety Data Sheets (MSDS) for workplace handling guidelines. Store in original moisture-proof packaging with desiccants. Bulk storage exceeding six months may require retesting of rheological properties. Processors should maintain melt temperatures below 200°C to prevent decomposition and HCl gas emission.
B2B Procurement Guide
Key specifications to verify: melt flow index (MFI 5–15 g/10min at 190°C), yellowness index (<3 after processing), and migration resistance for direct food contact applications. For large orders (>5 tons), request factory production samples with Certificate of Analysis (CoA). Consider suppliers offering technical support for extrusion parameter optimization. Spot-check shipments for consistent granule geometry—irregular sizing can cause feeder bridging in automated systems.
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