What functional fillers are needed to produce BOPP colored thermal sensitive synthetic paper?

When making BOPP color thermal synthetic paper, the required functional fillers mainly include the following types:

1、 Pigments and dyes

Pigments: Pigments are colored substances that are insoluble in solvents or water, usually dispersed in fine particles in a carrier. In BOPP colored thermosensitive synthetic paper, pigments are used to provide stable color effects that are not easily faded. Common pigments include inorganic pigments (such as titanium dioxide, zinc oxide, etc.) and organic pigments (such as azo, phthalocyanine, etc.).

Dyes: Dyes are colored substances that are soluble in solvents or water and can bind with fibers or other substances to color them. In BOPP colored thermosensitive synthetic paper, dyes can be used to impart specific colors or tones to the paper. Compared to pigments, dyes typically have higher color vividness and transparency.

2、 Special functional fillers

In addition to pigments and dyes, special functional fillers can also be added as needed to enhance the performance of BOPP color thermosensitive synthetic paper or endow it with new functional characteristics. These fillers may include:

Toughening agent: used to improve the toughness and impact resistance of materials.

Nucleating agent: used to promote the crystallization of polypropylene, improve the rigidity and transparency of the material.

Antistatic agent: used to reduce the accumulation of static electricity on the surface of materials and improve their anti-static performance.

Flame retardant: used to improve the flame retardant performance of materials, making them less prone to combustion or slowing down the combustion rate in a fire. Traditional flame retardants may contain halogen elements, which have certain impacts on the environment and human health. Therefore, the application of halogen-free flame retardants is becoming increasingly widespread.

Waterproof and oil resistant agent: used to improve the water and oil resistance of materials, suitable for application scenarios that require high protective performance.

Antibacterial agents: used to inhibit the growth and reproduction of microorganisms such as bacteria and molds, and improve the hygiene performance of products.

3、 Nanomaterials

The introduction of nanomaterials such as nano silica and nano calcium carbonate can significantly improve the optical properties, mechanical properties, and thermal stability of BOPP color thermosensitive synthetic paper. These nanoparticles can fill the micropores and defects in the material, improving its density and strength.

In summary, there are various types of functional fillers required for the production of BOPP colored thermosensitive synthetic paper, and the specific choice depends on the required product performance and application. In the actual production process, adjustments and optimizations need to be made according to specific circumstances.