Polyvinyl acetate latex impregnated towelette

Details Polyvinyl acetate latex impregnated towelette Polyvinyl acetate latex impregnated towelette

1980-06-26

1982-08-10

Sipos, John

Package making

Methods

With contents treating

53474, B65B 504

Patent

active

043431330

ABSTRACT:
Nonwoven fibrous sheets impregnated with latices of polyvinyl acetate or its copolymers containing polyvinyl alcohol, intended for use in pre-moistened condition as skin cleansing tissues, are folded and packaged in closed containers or in individual sealed water impervious envelopes; said packaged sheets being maintained in contact with a dilute aqueous solution of a precipitating or gelling agent for polyvinyl alcohol, such as boric acid. The agent imparts improved wet tensile strength to the sheet during storage and use by the consumer but permits the sheet to be safely disposed of, after use, by flushing in plain water without danger of clogging the plumbing system.

REFERENCES:
patent: 3135648 (1964-06-01), Hawkins
patent: 3213051 (1965-10-01), Pierce
patent: 3355322 (1967-11-01), Worrall
patent: 3438808 (1969-04-01), Hawkins et al.
patent: 3654928 (1972-04-01), Duchane
patent: 3881210 (1975-05-01), Drach et al.
patent: 3895474 (1975-07-01), Bauer

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