Printed DH Release Paper

Release Paper (also known as silicone-coated paper or anti-adhesive paper) is a specialized paper designed to prevent adhesion between sticky materials while protecting them from contamination. Below is a structured overview of its key aspects:

Basic Structure

A standard release paper consists of three layers:
1. Base Paper: The substrate (e.g., glassine, coated paper, or PE-laminated paper).
2. Release Coating: Typically silicone oil or other release agents applied to ensure easy detachment.
3. Backing: Sometimes a polyethylene (PE) laminate to enhance barrier properties.

Key Functions

• Anti-adhesion: Prevents sticky materials (e.g., adhesives, prepregs) from bonding prematurely.
• Contamination Protection: Shields sensitive surfaces from moisture, dust, and chemical damage.
• Support during Processing: Facilitates cutting, punching, or laminating of adhesive tapes, labels, or composite materials.

Common Applications

• Electronics & Automotive: Used for foam tapes, protective films, and adhesive components.
• Medical & Hygiene: Employed in adhesive dressings, surgical tapes, and sanitary products.
• Packaging & Printing: Applied in labels, self-adhesive stickers, and food packaging.

Technical Properties

• Release Force: Categorized as light (e.g., ≤10g/25mm), medium, or heavy release (up to 200g/25mm).
• Weight Range: Typically 35–250 g/m², customizable for specific needs.
• Thermal/Chemical Resistance: Variants like CCK release paper withstand high temperatures (e.g., in carbon fiber production).

Industry Terms

• Release Liner: Synonymous with release paper, especially in tape and label industries.
• Peel Strength: The force required to remove the paper from the adhesive.
• Residual Adhesion Rate: Measures silicone curing efficacy (ideally 70–100%).