Blue Grain Release Paper

Blue Grain Release Paper (Glassine)

Technical Characteristics and Performance

• Consistent Release Force: The silicone coating technology minimizes silicone migration, ensuring that the peeling force remains stable over time, ranging from ultra-light to heavy release values based on application requirements.
• Optical Sensor Detection: The blue tint provides the necessary opacity difference for optical sensors to detect gaps between labels, reducing errors in automatic dispensing lines.
• Tensile Strength and Durability: The supercalendered structure offers high internal bond strength, preventing webbing breaks during high-tension lamination and rewinding operations.
• Surface Uniformity: A smooth surface profile ensures the adhesive layer remains flat, preventing the "orange peel" effect on the final adhesive product.

Primary Applications

• Label Stock Industry: Backing material for barcode labels, logistics stickers, and commodity labels requiring automatic stripping.
• Precision Die-Cutting: Used as a liner for double-sided tapes in the electronics industry (membrane switches, flexible circuits) where precise die-cutting and punching processing is mandatory.
• Medical and Hygiene: Release liners for analgesic plasters, bandages, and surgical drapes, adhering to safety production standards.
• Industrial Tapes: Liner for conductive tapes, foam tapes, and sealing materials used in construction and automotive assembly.

Technical Specifications

Frequently Asked Questions (FAQ)

Why is Blue Glassine preferred over White or Yellow Glassine for certain applications?

The preference for Blue Grain Release Paper is primarily technical rather than aesthetic. In automated dispensing systems, optical sensors require a specific level of contrast to detect the gap between labels effectively. The blue background offers superior contrast against white or clear face stocks compared to white liners, reducing machine errors. Anhui Hengbo New Material Co., Ltd. supplies this material specifically to industries utilizing high-speed laser anti-counterfeiting and automatic labeling equipment where sensor precision is critical.

What is the shelf life and storage requirement for silicone-coated release paper?

Standard silicone-coated glassine paper maintains its release properties for approximately 12 months when stored correctly. It is imperative to store the rolls in a controlled environment, typically at 22°C ± 2°C with 50% ± 5% relative humidity, avoiding direct sunlight and moisture. Anhui Hengbo New Material Co., Ltd., established in 2017, adheres to ISO9001 international standard certification in its manufacturing and warehousing processes to ensure that products delivered for medical, electronic, and adhesive applications retain their specified technical stability upon arrival.

Can the release force be customized for specific die-cutting needs?

Yes, the release force is a variable parameter that must match the tackiness of the adhesive and the speed of the stripping process. Mismatched release values can lead to label drop-off or liner tearing. Anhui Hengbo New Material Co., Ltd. engages in die-cutting and punching processing support, offering customized release values (light, medium, or heavy release) to suit specific substrates like PET polyester film or protective films. The company follows a customer-oriented principle to adjust formulations based on the specific tensile and stripping requirements of the client's machinery.