I. Core Sheet Products: Focusing on "Functional Segmentation + Controllable Quality"

1. Transparent Rigid PVC Packaging Sheets

• Technical Features: Relying on high-precision calendering technology, the sheets can achieve a light transmittance of ≥92% and a haze of ≤1.5%, with a thickness deviation controlled within ±0.03mm. The equipment precisely synchronizes the temperature (160-180℃) and rotation speed of the rollers to avoid "crystal points" or "cloudy streaks" caused by impurities or bubbles in the raw materials, ensuring the sheet surface is as smooth as a mirror.
  
  
• Typical Applications:
  • Food-grade transparent packaging (such as chocolate trays, bakery boxes): Compliant with FDA 21 CFR 177.1970 food contact standards, with low-temperature resistance (-10℃ without embrittlement) suitable for refrigerated scenarios;
  • Window sheets for cosmetic gift boxes: High scratch resistance (surface hardness ≥HB) reduces scratches during transportation. Combined with UV curing coating technology, it achieves both wear resistance and a high-gloss texture.
    
    

2. Semi-transparent and High-filled Rigid PVC Sheets

• Technical Features: For semi-transparent needs, the light transmittance can be adjusted in a gradient of 30%-70% by controlling the particle size (≤2μm) and dispersion uniformity of fillers such as calcium carbonate and barium sulfate, balancing privacy and texture. For high-fill formulations (fill content up to 40%-60%), the equipment enhances the shear force in the plasticizing section to ensure full integration of fillers with PVC resin, avoiding sheet embrittlement or delamination.
  
  
• Typical Applications:
  • Industrial parts packaging sheets (such as blister boxes for hardware tools): High rigidity (flexural modulus ≥2500MPa) from high filling improves packaging compression resistance and reduces transportation damage;
  • Sheets for daily necessities storage boxes (such as drawer dividers): Semi-transparent frosted texture combines privacy and aesthetics, while being oil-resistant and easy to clean.
    
    

3. Printing-grade PVC Sheets

• Technical Features: Through mirror polishing of calender rollers (Ra≤0.02μm) and online corona treatment (surface tension ≥38dyn/cm), the sheet surface ensures ink adhesion of ≥5N/25mm (no peeling in 3M tape test). The transverse tensile strength deviation of the sheet is ≤5%, avoiding inaccurate printing registration or wrinkling during subsequent processing.
  
  
• Typical Applications:
  • Sheets for gift packaging folding boxes: Supporting high-precision dot printing (up to 150 lines/inch), compatible with processes like gold stamping and UV embossing to enhance packaging premium;
  • Sheets for advertising display boards: Weather-resistant modified formulas (with anti-UV additives) ensure no significant fading during 12 months of outdoor use. Combined with post-printing creasing technology, it enables quick folding and forming.
    
    

4. Blister-specific PVC Sheets

• Technical Features: Optimized sheet thermal shrinkage (longitudinal ≤1.5%, transverse ≤1.0%) and thermoforming fluidity enable deep drawing (drawing ratio up to 1:3) with uniform wall thickness (deviation ≤8%) during blistering, avoiding excessive thinning or cracking at corners. The equipment precisely controls sheet crystallinity by adjusting the temperature gradient of cooling rollers, ensuring thermoforming stability.
  
  
• Typical Applications:
  • Blister trays for pharmaceutical packaging: Compliant with YBB 00242005-2015 pharmaceutical PVC standards, resistant to high-temperature steam sterilization (121℃/30min without deformation);
  • Trays for electronic components: High-rigidity sheets can accurately match the groove dimensions of components, and anti-static formulas (surface resistance 10⁸-10¹⁰Ω) prevent electrostatic damage to chips.
    
    

II. Differentiated Solutions: Adapting to Diverse Needs with "Process Flexibility"

1. Expanded Material Compatibility
   In addition to conventional PVC, the equipment is compatible with modified materials such as PVC/ABS alloys and PVC/PMMA composites, producing special sheets that combine the cost-effectiveness of PVC with the toughness of ABS and the weather resistance of PMMA, meeting the special performance requirements of high-end packaging (such as display boxes for home appliance accessories).
   
   
2. Customized Functional Enhancement
   • For anti-counterfeiting needs: Semi-transparent sheets containing fluorescent masterbatches can display specific logos under ultraviolet light, suitable for high-end tobacco and alcohol packaging;
   • For environmental protection needs: Supporting the production of bio-based PVC sheets (plant plasticizers accounting for ≥30%), compliant with EU REACH regulations, suitable for export-oriented consumer goods packaging.
     
     
3. Efficient Production Guarantee
   Adopting a "twin-screw feeding + multi-roll calendering" linkage system, the production speed can reach 60-80 meters per minute, and the color/formula changeover time is shortened to within 30 minutes, balancing the needs of "large-batch stable production" and "small-batch multi-variety" flexible orders.
   
   

III. Industry Value: Supporting the Upgrade from "Basic Packaging" to "Functional Carrier"