Blog · Paper Knowledge for Buyers

Practical guides for packaging and paper buyers — written by paper suppliers, not marketers.

Paper Cup Stock Grades Explained: How to Choose

2026-09-14

Paper cup stock comes in different grades and grammage. Learn how FK1/FK2, high-bulk and barrier-coated cup stocks differ and which one fits your cups.

FBB vs SBB vs GC1: Paperboard Grades Made Simple

2026-09-08

International paperboard grades (FBB, SBB, GC1/GC2) confuse many buyers. This guide explains what each abbreviation means and how to match them to Chinese mill products.

Bamboo Pulp Paper vs Plastic Packaging: The Eco Shift

2026-08-31

Why food brands are switching from plastic to bamboo pulp paper — and what buyers should check (pulp purity, food-contact certificates, barrier needs) before switching.

What is C1S Folding Box Board?

2026-08-26

C1S (Coated One Side) folding box board is one of the most widely used paperboard grades for packaging. Learn what it is, what FBB means, and how to choose the right grade.