Method of removing paper adhered to a surface

Details Method of removing paper adhered to a surface Method of removing paper adhered to a surface

1977-07-18

1978-05-30

Naff, David M.

Cleaning and liquid contact with solids

Processes

Miscellaneous

134 30, 195 2, 195 63, 252DIG12, B08B 700, C07G 702

Patent

active

040921751

ABSTRACT:
Paper adhered to a surface with a starch-based adhesive is removed by mixing together (1) an enzyme composition containing a carbohydrase or a carbohydrase and a pratease, (2) a liquid composition containing (a) an activator for the enzyme composition, (b) a wetting agent and (c) a solvent for reducing the rate of evaporation of water from the paper, and (3) warm water, applying the resultant aqueous composition to the paper and physically removing the wet paper after the enzyme has degraded the adhesive. Prior to mixing, the enzyme composition is in a sealed moisture-proof package and the liquid composition is in another package.

REFERENCES:
patent: 2607359 (1952-08-01), Oesting
patent: 3627688 (1971-12-01), McCarty et al.
patent: 3629004 (1971-12-01), Cooper et al.
patent: 3709825 (1973-01-01), Chirash et al.

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