Process for applying chemical papermaking additives to web subst

Paper making and fiber liberation – Processes and products – Non-fiber additive

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Details

162158, 162135, 162183, 162111, 1621643, 1621641, 1621646, 1621681, 1621682, D21H 2322

Patent

active

061267848

ABSTRACT:
A process for applying a chemical additive, such as a softener, to a fibrous web comprises the steps of: providing a fibrous web having a first side and a second side opposite to the first side; providing a chemical additive; depositing the chemical additive only to the first side of the fibrous web; causing the first side of the fibrous web to contact the second side of the fibrous web thereby partially transferring the chemical additive from the first side to the second side of the fibrous web such that both the first side and the second side of the fibrous web comprise the chemical additive in a functionally sufficient amount. Preferably, the step of causing the two sides of the web to contact comprises winding the web into a roll.

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patent: 5840403 (1998-11-01), Trokhan et al.

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