Polypropylene wrap end seals and process for making same

Details Polypropylene wrap end seals and process for making same Polypropylene wrap end seals and process for making same

1984-12-12

1986-10-21

Culver, Horace M.

Package making

Methods

Closing package or filled receptacle

53373, 156219, 264339, B65B 706, B65B 5116, B65B 718

Patent

active

046177817

ABSTRACT:
A voided polypropylene film tampon wrap having end seals which are formed by mechanical crimping and a process for sealing the ends of the voided polypropylene film tampon wrap by mechanical crimping. A notch is formed adjacent to each end seal but remote from the enclosed tampon. Each end seal is formed by a pair of horizontal teeth wheels each having a pitch of 50 teeth per inch. One of the pair of wheels is heated to a temperature of 125.degree..+-.15.degree., and force is applied to at least one wheel to seal that end of the wrap by the pair of wheels.

REFERENCES:
patent: 2200971 (1940-05-01), Sonneborn et al.
patent: 2248471 (1941-07-01), Stroop
patent: 2257823 (1941-10-01), Stokes
patent: 2322430 (1943-06-01), Fay
patent: 2430995 (1947-11-01), Roos
patent: 2882662 (1959-04-01), Campbell
patent: 2893468 (1959-07-01), Fieroh
patent: 2953882 (1960-09-01), Tew
patent: 3403033 (1968-09-01), Griner
patent: 3426499 (1969-02-01), Paige
patent: 3452505 (1969-07-01), Hoag
patent: 3522689 (1970-08-01), Wylie et al.
patent: 3557525 (1971-01-01), Bauder
patent: 3756900 (1973-09-01), Michel
patent: 3943686 (1976-03-01), Crawford
patent: 3955338 (1976-05-01), Winzler et al.
patent: 3982374 (1976-09-01), Schaefer
patent: 4019306 (1977-04-01), Evans
patent: 4045946 (1977-09-01), Schaefer
patent: 4102111 (1978-07-01), Nack et al.
patent: 4106262 (1978-08-01), Aterianus
patent: 4254601 (1981-03-01), Prager et al.

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