what is bopp label material？

1. Introduction to BOPP Material

BOPP stands for “Biaxially Oriented Polypropylene,” a material widely used in label production due to its unique manufacturing process and excellent properties.

1.1 BOPP Manufacturing Process

The BOPP production process mainly includes the following steps:

1. Raw material preparation: High-quality polypropylene (PP) resin is selected as the raw material.
2. Melt extrusion: PP resin is heated and melted, then extruded through a narrow die to form sheets or thick films.
3. Biaxial stretching: In a specialized stretching machine, the material is stretched simultaneously or in steps in both longitudinal and transverse directions under controlled temperature and speed conditions.
4. Cooling treatment: The stretched film undergoes appropriate cooling or heat treatment.
5. Surface treatment: Special processing such as corona treatment or coating is performed as needed to improve the film’s printability and adhesion.

2. Composition of BOPP Adhesive Labels

BOPP adhesive labels typically consist of the following parts:

2.1 Surface Material

• Main material: BOPP film
• Thickness range: Usually between 20-50 microns, customizable according to requirements

2.2 Adhesive

Different types of adhesives can be chosen based on application requirements:

• Regular adhesive: Suitable for general label applications
• Strong adhesive: Used for situations requiring higher adhesion
• Special adhesives: Can be customized for specific requirements, such as heat resistance, cold resistance, removability, etc.

2.3 Release Liner

The choice of release liner affects label processing efficiency and cost:

• White glassine liner: Suitable for high-end products
• Blue glassine liner: Helps improve automated labeling efficiency
• Yellow glassine liner: Economical, suitable for large-scale production
• White thick liner: Suitable for situations requiring higher strength
• Economy yellow liner: Lower cost, suitable for general applications

3. Characteristics of BOPP Labels

BOPP adhesive labels possess various excellent characteristics, making them the preferred choice in many application areas:

1. High hardness and tensile strength: Improves label durability
2. Excellent aging resistance: Extends label lifespan
3. Outstanding transparency: Suitable for showcasing the product itself
4. Water and oil resistance: Suitable for use in humid or oily environments
5. High strength, tear-resistant: Increases label durability
6. Good abrasion resistance: Protects printed content from wear
7. Excellent printing effect: Vibrant colors, clear patterns
8. Uniform thickness: Ensures consistency in label appearance
9. High surface gloss: Enhances product visual appeal

4. Applications of BOPP Labels

Due to their diverse characteristics, BOPP adhesive labels are widely used in many industries:

1. Daily chemical products:
   • Shampoo, shower gel
   • Laundry detergent, fabric softener
   • Cleaners, disinfectants
2. Cosmetics and skincare products:
   • Face creams, lotions
   • Serums, toners
   • Makeup products
3. Food and beverages:
   • Mineral water bottle labels
   • Juice and beverage packaging
   • Food packaging labels
4. Pharmaceutical products:
   • Drug packaging labels
   • Medical device identification
5. Industrial products:
   • Electronic product labels
   • Home appliance identification
   • Automotive parts labels
6. Logistics and retail:
   • Price tags
   • Barcode labels
   • Anti-counterfeiting labels

Our company manufactures bopp label materials and finished labels. If you have any needs, please contact us