Notes
Working notes on paper and board
Answers to the questions that come up on real enquiries — written from mill data sheets and from what we actually ship, not from a brochure.
Folding boxboard or grey-back duplex?
The practical difference between folding boxboard and grey-back duplex, and the three questions that actually decide which one your carton needs.
Read →Grey board: what caliper you actually get
Same grammage, different thickness. Measured caliper ranges for three grey board tiers, and why the spread between them is the number that matters.
Read →Which flute, and why
What each corrugated flute profile is for — cushioning, stacking, print and wall thickness — and what to send when you ask for a quotation.
Read →What the documentation proves — and what it does not
What comes with food-grade paper from a Far East mill, what those documents actually establish, and what remains the buyer's obligation.
Read →The same board, four names
Which paper and board names mean the same thing across markets, which look similar but are not, and how to write an enquiry that cannot be misread.
Read →Greaseproof paper, with and without fluorine
How the two kinds of grease resistance are achieved, where each is used, and what to establish before you specify one for your market.
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