Sustainable Cellulose Silicone Adhesive Protective Film-Keyful CP-SAP
•Eco-Sourcing: Derived from renewable wood pulp. Certified for industrial and home composting.
•Uniform coating, free from wrinkles, tears, particles, and other defects •High transparency and printable.
•Customizable adhesion strength.
•Bubble-free, yellowing-resistant, non-rebound (no lifting), and leaves no adhesive residue，capable of passing the 85°C / 85% RH high–low temperature aging test.
Keyful CP-SAP offers bio-based, residue-free, and traceable labeling solutions, combining customized adhesion, superior printability and durability, supporting mass customization of eco-friendly packaging and high-end transparent labels, and enhancing the sustainability of brands and supply chains.
Keyful focus on the research & development, production, manufacturing, and supply of various flexible, environmentally friendly, and biodegradable packaging films, covering BOPP, BOPET, BOPA, PE, and recyclable single-material films, and are committed to meeting the diverse packaging solution needs of the market.
Keyful Cellulose Silicone Adhesive Protective Film and PET release liner form an environmentally friendly, residue-free, high-end label system. The bio-cellulose facestock has a thickness of 28μm, high transparency, strong printability, and undergoes special surface treatment, offering excellent compatibility with both hydrophilic and lipophilic substances.
It features customizable adhesion, easy peeling without yellowing or rebound, and can withstand high-temperature and high-humidity aging tests at 85°C/85%RH. The overall combination enables a degradable, residue-free, durable, and traceable supply chain, suitable for custom applications in eco-friendly packaging, sustainable labels, and high-end transparent labels.
Applications
Die-cutting Industry: Surface protection for electronic screens, plastics, high-end hardware, metals, and home appliances.
High-end appliance & hardware labels: Transparent appearance to enhance product appearance consistency and traceability.
Eco-friendly packaging labels: Biodegradable substrates and recyclable backing paper to meet green supply chain requirements.
Technical Properties (Typical Values)
| Face Stock | Liner | ||
|---|---|---|---|
| Material Description | BIO-Cellulose | Material Description | Transparent PET Release Film |
| Thickness | 28±3 μm | Thickness | 50±3 μm |
| Basic Weight | 40±4 (g/m²) | Basic Weight | 70±4 (g/m²) |
| Color | Transparent | Color | Transparent |
| Wetting tension | ~ | Release Force | 1~8 |
| Adhesive | |||
| Properties | Value | Unit | Test Method |
| Adhesive Name | Silicone | * | * |
| Thickness | 12±2 μm | * | KF-PWI18.6-29A |
| Surface Treatment | ≥38 dyne (PILLAR) | Dyne | KF-PWI18.6-02B |
| Initial Tack | * | * | GB/T 4852-2002 |
| Peel Strength | 5-8 gf/25mm | * | GB/T 2792-2014 |
| Release Force | 1-8 gf/24mm | * | KF-PWI18.6-11A |
| Temperature Range | ~20~80°C | * | * |
All properties are tested under standard laboratory conditions: 23±2ºC; 50±5% RH, unless otherwise stated. Where relevant, tests are based on international testing standards. Metallising is conducted by a sub-contractor. MD – Machine Direction TD – Transverse Direction.
