Water Based Coating Paper, also known as coated base paper, is a type of paper that is coated with a layer of white pigment on its surface to enhance its brightness, smoothness, and printability. It is widely used in the printing and packaging industries as a substrate for various printing processes, such as offset printing, flexographic printing, and gravure printing. The coating process can be applied to various types of paper, including wood-free paper, kraft paper, and newsprint, depending on the specific application requirements.
The coating material, usually a mixture of white pigment and adhesives, is applied to the paper surface using various coating techniques, such as blade coating, air-knife coating, or roll coating. The coated paper then undergoes drying and calendering processes to achieve the desired surface finish and properties.
The coated base paper has excellent printing characteristics, including high ink absorption, sharp image reproduction, and good color saturation. It is suitable for printing high-quality graphics, photos, and text, and is commonly used in the production of brochures, catalogs, magazines, packaging materials, and other printed products.
In summary, Based Coating Paper is a type of coated paper that is widely used in the printing and packaging industries for its excellent printing characteristics and surface properties.
Water-based coatings applied to paper:
Barrier Coatings
These coatings are used to improve the paper's resistance to moisture, grease, or other liquids. Barrier coatings are often applied to paperboard used in food packaging to prevent the migration of oils or moisture from the packaged product.
Gloss or Matte Coatings
Gloss coatings provide a shiny, reflective surface to the paper, while matte coatings offer a more subdued, non-reflective finish. These coatings can enhance the appearance of printed graphics and text, as well as provide some level of protection against scuffing and abrasion.
UV Coatings
Ultraviolet (UV) coatings are applied to paper and then cured using ultraviolet light. These coatings offer enhanced durability and resistance to scratching and fading compared to traditional coatings. UV coatings can provide a glossy or matte finish, depending on the desired effect.
Water-Based Inkjet Coatings
Paper coated with water-based inkjet coatings is specifically designed for use with inkjet printers. These coatings improve ink adhesion, reduce ink bleed, and enhance color vibrancy and sharpness, resulting in high-quality printed images and text.
Release Coatings
Release coatings are applied to one side of the paper to create a non-stick surface. This type of coating is commonly used in applications such as release liners for pressure-sensitive adhesive labels or tapes.
Heat Seal Coatings
Heat seal coatings are applied to paper to enable heat sealing of packaging materials. These coatings facilitate the formation of a strong, tamper-evident seal when heat is applied, making them suitable for various types of food packaging, medical packaging, and other applications.
Water-based coating paper offers several advantages over solvent-based coatings, including lower volatile organic compound (VOC) emissions, reduced environmental impact, and improved safety for workers. Additionally, water-based coatings can be easily customized to meet specific performance requirements, making them suitable for a wide range of applications in the packaging, printing, and publishing industries.