Craft · 6 pages · 12 min
Why acid paper crumbles
Acids in the sheet shorten cellulose chains until the fibers snap instead of bend.
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From the opening
Much industrial paper crumbles because acids in the sheet cut the cellulose chains that give each fiber its length and strength. As those molecules shorten, the mat can no longer bend, and the page turns brittle and often brown. The opening covers acid cuts cellulose chains, alum-rosin left the sheet sour, and lignin darkens groundwood pulp.
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Inside
- Acid cuts cellulose chains
- Alum-rosin left the sheet sour
- Lignin darkens groundwood pulp
- Rag paper often stays flexible
- Where the idea stops applying
- A distinction worth keeping
Sources
- Alum-rosin sizing and acid paper
- Lignin in groundwood pulp