Dennison Cooked Its Crepe in Glue Soup, Then Looked Down on Paper Towels
Dennison's crepe paper was not made on a papermaking machine. It was cooked afterward. In the ordinary method, which a 1928 Scott Paper patent describes, wet paper goes straight from the papermaking machine onto a drum and is scraped off as towels and napkins. Dennison's 1930 patent, by Gardner R. Alden of Framingham, starts instead with a roll of finished tissue and soaks it in five parts hide glue to five hundred parts water, with the dye stirred into the same pot: in the example, tartrazine, the yellow that now colours sweets. Then came a steam-heated roll and the blade, so the paper was coloured and crinkled in one pass, by a recipe that is mostly soup.
The glue was there for the stretch. The patent measures creping by the crepe ratio, the tissue's original length over its creped length, and says that the more firmly the glue holds the sheet to the roll, the higher the ratio, with 2 to 1 or more giving more body and stretch. At 2 to 1, every foot of good crepe began as two feet of tissue, and when you pull a petal into a cup, you are collecting what the blade took. A later Dennison patent, filed in 1944, describes the machine-made kind as "crumpled paper, sometimes called crepe paper, such as paper towels," with a "coarse and non-uniform creped texture, low crepe ratio, and of little elasticity." Kitchen roll was told in a federal filing that it has no give.
The 1930 patent also says the finished crepe has "a characteristically brilliant surface on the creped side of the sheet," while the other face looks like natural paper. That is Oksana's richer front, from my last crepe post, confirmed by a Dennison engineer ninety years before she said it. What the patent doesn't say is which face, the brilliant or the plain, ended up turned inward on the roll, the question the 1913 catalog sent you hunting. The old Dennison packets on their way to you were folded at the factory. Unfold one and you may have the answer before I've finished squinting at the next patent.