The Definition And Application of Glassine Backing Paper

1. Definition

Glassine backing paper is a high-end category of self-adhesive backing paper (release paper), made from glassine base paper through coating processing. Its characteristics are:

The material is dense and uniform: The internal fibers are tight, with high strength, tear resistance, and are not prone to damage during die-cutting and waste discharge.

Excellent light transmittance: Semi-transparent (or nearly transparent), suitable for photoelectric recognition by labeling machines, and supports high-speed automatic labeling.

Functional features: High-temperature resistant (short-term 100℃+), moisture-proof, oil-proof, protects surface materials and adhesives, and meets the environmental requirements of the food, pharmaceutical and other industries.

Smooth surface: Uniform release force, smooth material peeling after labeling, no residual glue, especially suitable for high-precision printing (such as anti-counterfeiting labels, color barcodes).

2. Core Application Scenarios

1. High-speed automatic labeling

Industry: Electronics (mobile phone/computer labels), Daily chemicals (cosmetic bottle labels), Food and beverages (bottled water/beverage labels).

Advantages: High light transmittance, the photoelectric system of the labeling machine can quickly identify, achieving high-speed labeling of hundreds of labels per minute and improving production line efficiency (for example, a certain electronics factory used glassine backing paper, increasing the labeling speed by 30%).

2. Rotary/offset die-cutting processing

Process compatibility: It is applicable to both rotary printing (roll labels, such as barcodes) and offset printing (single labels, such as anti-counterfeiting labels). The die-cutting accuracy is high (the blade is less likely to be cut through or not in place during rotary die-cutting), and the fiber toughness is strong during waste removal, making it less likely to break (reducing the defect rate by 5%-10%).

3. High-end labels and anti-counterfeiting

Scene: Laser anti-counterfeiting label (the light-transmitting property of the backing paper assists in the identification of anti-counterfeiting patterns), double-sided adhesive tape base material (uniform release force, no residue after tape peeling), pharmaceutical packaging (moisture-proof and oil-proof, such as vaccine labels, ensuring stable adhesion during cold chain transportation)

4. Food and pharmaceutical packaging

Functions: Moisture-proof (baking food label, preventing the dough material from absorbing moisture and deforming), oil-proof (edible oil bottle label, resisting oil stain erosion), high-temperature resistant (microwave food label, the adhesive does not fail under short-term high temperature), and complies with food contact safety standards (such as FDA certification)