Materials > Paperboard

Solid Unbleached Sulphate

A semi-gloss, smooth white board with uncoated kraft back.
Also known as
Clay Coated Kraft Back (CCKB), Coated Unbleached Kraft (CUK), Clay Natural Kraft (CNK)

What is Solid Unbleached Sulphate?

A very strong paperboard, commonly used for beer bottle carriers. On the coated side, printed colors appear more vibrant and design details appear more crisp.

If you prefer a gray back instead of natural kraft, CCNB is similarly clay coated on one side, and the board is made from recycled newspaper. For white on both sides, SBS is the way to go.

Why choose it?

  • On the coated side, printed colors appear more vibrant and design details appear more crisp.

  • Natural kraft back

  • Higher recycled content than SBS

  • Strength to hold heavier products

Why not choose it?

  • Only coated on one side