In the world of packaging and printing, C2S white duplex board stands out as a versatile and widely - used material. As a supplier of C2S white duplex board, I've been frequently asked about the coating on this remarkable product. In this blog, I'll delve into the details of the coating on C2S white duplex board, exploring its types, functions, and benefits.
Understanding C2S White Duplex Board
Before we jump into the coating, let's briefly understand what C2S white duplex board is. C2S stands for "Coated on Two Sides". It is a type of paperboard that has a white, coated surface on both sides. This board is made by laminating multiple layers of paper pulp, resulting in a sturdy and high - quality material. It is commonly used in packaging applications such as boxes for cosmetics, food, electronics, and luxury items, as well as in printing for brochures, flyers, and greeting cards.
Types of Coatings on C2S White Duplex Board
Clay Coating
One of the most common coatings on C2S white duplex board is clay coating. Clay coating is applied to the surface of the board to improve its smoothness, brightness, and printability. The clay particles fill in the tiny pores and irregularities on the paper surface, creating a flat and even surface for printing. This results in sharper images, more vibrant colors, and better ink hold - out.
The clay used in the coating is typically kaolin clay, which is known for its fine particle size and white color. The clay coating can be applied in different thicknesses, depending on the desired level of smoothness and print quality. A thinner clay coating may be used for applications where a lower cost is a priority, while a thicker coating is often used for high - end printing jobs that require the best possible print results.
Polyethylene (PE) Coating
Polyethylene coating is another type of coating that can be applied to C2S white duplex board. PE coating provides a moisture - resistant and grease - resistant barrier, making the board suitable for packaging applications that require protection against moisture, oil, and grease. For example, it is commonly used in food packaging, such as fast - food containers and bakery boxes.
The PE coating can be applied in a variety of ways, including extrusion coating and lamination. Extrusion coating involves melting the polyethylene resin and then applying it to the board surface using an extruder. Lamination, on the other hand, involves bonding a pre - formed polyethylene film to the board surface using an adhesive.
UV Coating
UV coating is a popular choice for enhancing the appearance and durability of C2S white duplex board. UV coating is a clear, protective layer that is applied to the board surface and then cured using ultraviolet light. This results in a high - gloss, scratch - resistant, and water - resistant finish.
UV coating can be applied in different finishes, such as high - gloss, semi - gloss, and matte. High - gloss UV coating is often used for applications where a shiny, eye - catching appearance is desired, such as in luxury product packaging. Semi - gloss and matte finishes are more suitable for applications where a more subdued or elegant look is preferred, such as in business cards and brochures.
Functions of the Coating on C2S White Duplex Board
Printability Enhancement
As mentioned earlier, the coating on C2S white duplex board plays a crucial role in improving printability. The smooth surface created by the coating allows for better ink transfer and adhesion, resulting in high - quality prints with sharp details and vivid colors. Whether it's offset printing, digital printing, or flexographic printing, the coating ensures that the printed images and text look their best.
Protection
The coating also provides protection to the board and the contents inside the package. Clay coating can protect the board from dirt and dust, while PE coating offers moisture and grease resistance. UV coating, on the other hand, protects the printed surface from scratches, abrasion, and fading, ensuring that the package maintains its appearance throughout its shelf life.
Aesthetics
The coating can significantly enhance the aesthetic appeal of the C2S white duplex board. A high - gloss UV coating can give the board a luxurious and professional look, while a matte finish can create a more sophisticated and understated appearance. The coating can also be used to add special effects, such as embossing or debossing, to make the package stand out on the shelf.


Benefits of Using Coated C2S White Duplex Board
Brand Image
Using coated C2S white duplex board can help businesses enhance their brand image. High - quality prints on a coated board give the impression of a professional and reliable brand. For example, a luxury cosmetics brand that uses a C2S white duplex board with a high - gloss UV coating for its product packaging will convey a sense of elegance and quality to its customers.
Product Protection
As mentioned earlier, the coating on the board provides protection to the product inside the package. This is especially important for products that are sensitive to moisture, oil, or physical damage. For example, food products need to be protected from moisture and grease to maintain their freshness and quality, and a PE - coated C2S white duplex board can provide the necessary protection.
Marketing Advantage
The aesthetic appeal of the coated C2S white duplex board can give businesses a marketing advantage. A well - designed package with a high - quality coating can attract the attention of consumers and make the product stand out from the competition. For example, a unique and eye - catching package design on a C2S white duplex board with a special UV - coated finish can increase the chances of a consumer picking up the product from the shelf.
Our Offerings as a C2S White Duplex Board Supplier
As a supplier of C2S white duplex board, we offer a wide range of products with different coatings to meet the diverse needs of our customers. Whether you need a clay - coated board for high - quality printing, a PE - coated board for food packaging, or a UV - coated board for a luxurious look, we have the right solution for you.
We also offer Recyclable C2S White Duplex Board, which is an environmentally friendly option for businesses that are committed to sustainability. Our C2S White Duplex Board Sheet is available in various sizes and thicknesses, and we can also provide OEM C2S White Duplex Board according to your specific requirements.
Conclusion
The coating on C2S white duplex board is a crucial factor that determines its performance, appearance, and suitability for different applications. Whether it's clay coating for printability, PE coating for protection, or UV coating for aesthetics, each type of coating offers unique benefits. As a supplier, we are dedicated to providing high - quality C2S white duplex board with the right coating to meet your needs. If you are interested in our products, please feel free to contact us for procurement and negotiation. We look forward to working with you to create the perfect packaging and printing solutions.
References
- "Handbook of Paper and Board Coating Technology" by K. P. Ananthapadmanabhan
- "Packaging Materials and Technology" by R. K. Rattan
