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Carbonless Paper Technical Data
Coated Paper Description and Construction
Carbonless paper consists of a top sheet, a bottom sheet, and possibly one or several intermediate sheets. The top sheet (CB) has a curl coat on the front side and a coating consisting of binder and microcapsules containing fill and colour formers on the reverse side. The bottom sheet (CF) features a coating of binder and developer on the front side and a release coating on the reverse side. The intermediate sheets (CFB) contain the CF front side coating on the front and the CB reverse side coating on the back.
Weight %
CB
CFB
CF
Paper
92-94%
85-89%
92-94%
Binder
3-6%
2-6%
1-4%
Microcapsules
1-4%
4%
-
Developer
-
1-4%
2-4%
The microcapsules are designed to rupture at a pressure of about 90,000 Pa (>1,270 psig) and will release their fill consisting of colourformers and transfer agents to the developer sheet.
