What is C1S and C2S in Packaging Board?
No matter the product—whether it’s perfume boxes, pharmaceutical boxes, or boxes for retail goods—packaging plays a critical role. Significant time, thought, and investment go into getting packaging right, often at a cost that can exceed the product itself.
The carton board used must not only protect the product but also communicate its message through design, structure, and attention-grabbing graphics. Choosing the correct board is therefore essential to achieving both functional and visual success.
Depending on the design requirements and the desired look and feel of the carton box, carton board can be coated on one side or both sides.
- C1S refers to Coated One Sided board
- C2S refers to Coated Two Sides board
The coating is what allows print to appear sharp, vibrant, and visually impactful – bringing your design to life.
From retail shelves to e-commerce deliveries, carton box packaging is constantly competing for attention. Getting it right is not optional—it is critical to sales success.
How do I choose between C1S and C2S?
Here is a practical guide to help you decide:
1. Design Requirements
C1S (Coated One Side): If the inside of the box is not printed, or if an insert is used to hold the product in place, C1S is typically the best choice. The coated outer surface delivers vibrant print quality, while the uncoated inner surface provides a clean, simple finish.
C2S (Coated Two Sides): If your design extends to the inside of the box and you require the same level of colour vibrancy on both sides, then C2S is the appropriate option. It ensures a consistent, high-quality print finish throughout.
2. Luxury versus Natural Texture
C1S: The uncoated inner box side offers a more natural, slightly textured feel. Many brands use this contrast intentionally, pairing a high-impact printed exterior with a more organic interior.
C2S: With both sides coated, the board has a smooth, refined finish throughout. This enhances the perception of quality and creates a more premium, luxury feel.
3. Structural Rigidity and Strength
C1S: Because one side is uncoated, the board is often slightly firmer, even at the same grammage. This added rigidity can be beneficial for products requiring extra structural support, such as perfume boxes, especially when used with box inserts. Lamination can be added to the outside to provide further strength but often the designer prefers to leave the look natural and uncomplicated.
C2S: As these boards feel a little less rigid than the one side coated boards they are often laminated on the outside, improving durability while enhancing the visual appeal giving a more high end look and feel.
