What are the different coating formulas for BOPP colored synthetic paper?

There are multiple options for the coating formula of BOPP colored synthetic paper, which mainly depend on the required paper properties and application scenarios. Here are some common coating formulas and their characteristics:

1、 Thermal sensitive coating material

Thermal sensitive coating is a key component of BOPP color synthetic paper, which determines the thermal printing performance of the paper. New thermal sensitive coating materials should have higher sensitivity, stability, and weather resistance to meet a wider range of application needs.

2、 Bottom coating

Bottom coat is usually used to improve the adhesion between paper and coating, and to enhance the surface properties of paper. For example, a BOPP synthetic paper primer coating may contain acrylic resin lotion, water repellent, cross-linking agent, defoamer, lubricant and other components, which can promote the adhesion between the coating and the base film through the physical and chemical properties and mechanical effects between the synthetic paper base film and the coating.

3、 Functional coating

Waterproof and oil resistant coating: Coating the surface of BOPP colored synthetic paper with a waterproof and oil resistant coating can significantly improve its water resistance and oil resistance, making it suitable for applications that require high protective performance.

Antibacterial coating: This coating material can effectively inhibit the growth and reproduction of microorganisms such as bacteria and mold, and improve the hygiene performance of the product. With the increasing emphasis on hygiene and health, the application of antibacterial coatings in BOPP colored synthetic paper is becoming more and more widespread.

Other functional coatings, such as anti-static coatings, wear-resistant coatings, etc., can be selected and added according to specific needs.

4、 Special functional coating

With the development of technology, some intelligent materials with special functions have also been applied to BOPP color synthetic paper. For example:

Temperature indicator material: can change color or transparency at a specific temperature, used for monitoring and indicating temperature changes.

Humidity indicator material: It can reflect the humidity changes inside the packaging and is used to monitor the humidity situation of the packaging environment.

5、 Environmentally friendly coating

With the increasing awareness of environmental protection, the application of environmentally friendly coatings in BOPP colored synthetic paper is becoming more and more widespread. For example, additives made from bio based materials such as starch, cellulose, etc. can reduce dependence on fossil resources and lower carbon emissions during the production process. At the same time, developing halogen-free flame retardants and applying them to BOPP colored synthetic paper can also improve the environmental performance of the product.

In summary, there are multiple options for the coating formula of BOPP color synthetic paper, which can be customized and optimized according to specific needs. When selecting coating formulations, it is necessary to comprehensively consider factors such as paper performance requirements, application scenarios, and environmental protection requirements.