70μm Base Film 25μm Emboss Depth Purple-Black Dual-Color CPP Film for High Tensile Strength and Tear-Resistant Packaging
A versatile cast polypropylene (CPP) film engineered with a 70μm balanced base thickness and 25μm embossed texture, featuring an elegant purple-black dual-color finish. This film combines flexibility, structural reliability, visual sophistication, and processing adaptability for demanding packaging applications.
Manufactured through advanced multi-layer cast co-extrusion technology, this film undergoes precision T-die extrusion for uniform melt flow and consistent 70μm base thickness (±2μm tolerance). Rapid chill-roll cooling solidifies the film, followed by in-line precision embossing using custom-engraved rollers to create a sharp 25μm pattern depth. Purple and black masterbatches are uniformly dispersed during extrusion, achieving rich, streak-free dual-color contrast with excellent color fastness.
- Balanced 70μm base thickness with precise 25μm embossed pattern for optimal flexibility and structural stability
- Elegant purple-black dual-color design with rich saturation and superior color fastness
- Excellent mechanical properties including moderate to high tensile strength and outstanding flexibility
- Non-slip embossed surface reduces glare and enhances grip for automated processing
- Low thermal shrinkage and excellent flatness for stable converting adaptability
- Good chemical resistance, moisture barrier, and dust-repellent properties
- 70μm balanced base ensures excellent flexibility and medium-duty protection
- Precise 25μm embossed pattern improves grip and enhances visual presentation
- Superior dimensional stability reduces production waste and improves efficiency
- Integrated dual-color and embossing process lowers production costs
- Food-grade compatible PP material, non-toxic, odorless, and recyclable
- Optimal balance of concealment and light transmittance for product inspection
This versatile CPP embossed film is widely applicable in commercial and industrial fields, including premium consumer goods packaging (cosmetics, skincare, electronics), electronic component packaging, medium-duty industrial surface protection, gift wrapping, and retail display packaging. It performs reliably in normal temperature (0-40℃) environments including retail stores, warehouses, and high-speed automated converting lines.


| Test Item | Unit | Industry Standard Requirement | Product Specified Standard | Actual Test Result | Qualification |
|---|---|---|---|---|---|
| Base Film Thickness (excl. emboss) | μm | 70±5 | 70±3 | 69.5 | Qualified |
| Emboss Depth | μm | 25±3 (customizable) | 25±2 | 24.8 | Qualified |
| Tensile Strength (MD/TD) | MPa | ≥18/≥16 | ≥20/≥18 | 21.2/19.5 | Qualified |
| Elongation at Break (MD/TD) | % | ≥280/≥230 | ≥300/≥250 | 315/268 | Qualified |
| Heat Seal Strength (120°C, 0.3MPa, 1s) | N/15mm | ≥9 | ≥11 | 12.3 | Qualified |
| Surface Tension (corona treated side) | mN/m | ≥38 | ≥40 | 41.2 | Qualified |
| Tear Resistance (MD/TD) | N | ≥14/≥11 | ≥15/≥12 | 16.1/13.3 | Qualified |
| Moisture Barrier Property (23°C, 85%RH) | g/(m²*24h) | ≤5.5 | ≤5.0 | 4.7 | Qualified |
| Oil Resistance (soaked in n-hexane for 24h) | - | No obvious swelling, discoloration | No swelling, discoloration, adhesion | No swelling, discoloration, adhesion | Qualified |
| Hardness (Shore D) | HD | 53±5 | 53±3 | 52.7 | Qualified |
| Emboss Adhesion | - | No texture peeling by tape test | No texture peeling, color fading by 3M tape test | No texture peeling, color fading by 3M tape test | Qualified |
| Weather Resistance (UV aging for 72h) | - | No obvious fading, cracking | Fading grade ≤2, no cracking, deformation | Fading grade 1, no cracking, deformation | Qualified |
| Environmental Performance (food contact grade) | - | Compliant with GB 4806.7-2016 | Compliant with GB 4806.7-2016, no peculiar smell, no harmful precipitation | Compliant with GB 4806.7-2016, no peculiar smell, no harmful precipitation | Qualified |
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