VINNAPAS VAE Emulsions in Paper Packaging and Processing Applications

In the field of paper packaging and post-processing, the performance stability of adhesives directly impacts production efficiency and product quality. With the increasing popularity of water-based systems in the packaging industry, VAE emulsions have gradually become the mainstream choice for cardboard boxes, paper cartons, and paper bags due to their excellent overall performance. The VINNAPAS series of VAE emulsions, through varying ethylene content and formulation designs, can cover a wide range of paper packaging applications.

1. Technical Characteristics and Core Advantages of VINNAPAS VAE Emulsions

VINNAPAS VAE emulsion is a high-performance polymer dispersion whose molecular structure combines the advantages of vinyl acetate (providing cohesion and hardness) and ethylene monomers (providing flexibility and adhesion). This unique chemical structure gives it the following core technical advantages in paper packaging processing:

• Balanced performance: VAE emulsions achieve a good balance between adhesive strength, cohesion, and flexibility, ensuring stable bonding strength at different ambient temperatures.
• Excellent substrate adhesion: This series of products is not only suitable for traditional coated or uncoated paper and cardboard, but also has excellent wetting and adhesion to various "difficult-to-bond substrates" such as plastic films.
• Extremely fast curing speed: On high-speed automated production lines, curing speed directly affects productivity. WACKER VAE has a very high drying speed, which can meet the high-speed operation requirements of modern packaging equipment.
• Good wettability and low-temperature flexibility: Even in low-temperature environments, the VAE coating can maintain good flexibility, preventing the adhesive layer from becoming brittle, and has excellent penetration and spreading capabilities on the substrate surface.

2. Main Application Scenarios of WACKER VAE in Paper Packaging Processing

Paper box and carton sealing: This is the most common application area for VAE emulsions. Whether it's simple folding cartons or load-bearing cardboard boxes, VINNAPAS provides sufficient initial tack and final strength to ensure that the packaging does not delaminate during transportation.

Paper bags, document bags, and paper sacks: In paper bag manufacturing, bottom sealing and side bonding require adhesives with good workability and aging resistance. VAE emulsions (such as VINNAPAS EP 705 A) ensure the stability of seams in paper bags under load.

• Corrugated cardboard and paperboard: VAE emulsions are commonly used in the processing of high-performance corrugated cardboard, providing stronger bonding strength and moisture resistance than traditional starch adhesives.
• Lamination applications: In the lamination process of paper with plastic films (such as PE, PP, PET) or aluminum foil, VAE emulsions serve as the basis for high-performance adhesives, addressing the challenge of bonding non-polar surfaces.
• Folding carton processing: For high-end gift boxes, medicine boxes, and other folding cartons, VAE ensures that creases do not crack and exhibits excellent mechanical stability during the forming process.

3. Environmental Compliance and Food Safety Assurance

• Food contact safety: VINNAPAS VAE emulsions comply with the main relevant regulations for food contact materials and are suitable for manufacturing various food packaging adhesives.
• Low migration and no plasticizers: WACKER's technology allows for the formulation of adhesives without plasticizers, featuring low migration characteristics, significantly reducing the risk of packaging materials contaminating the food or pharmaceuticals inside.
• Sustainability: Some high-end models, such as VINNAPAS 920 and VINNAPAS EP 7000, do not use APEO (alkylphenol ethoxylates) in the production process and have extremely low formaldehyde content, fully complying with green and environmentally friendly production standards.

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