Method for sterilizing a thermo-plastic strip used for the hot-f

Details Method for sterilizing a thermo-plastic strip used for the hot-f Method for sterilizing a thermo-plastic strip used for the hot-f

1980-03-31

1982-05-18

Richman, Barry S.

Package making

Methods

Sterilizing cover only

422 1, 422 22, 493467, B65B 5508, B65B 5506

Patent

active

043298290

ABSTRACT:
A method for sterilizing a thermoplastic strip moving forward stepwise and used in the production of hot-formed containers which, after forming, are filled and sealed in a sterile atmosphere, which method consists, before the strip softening operation, in exposing the surface of said strip which is subsequently to constitute the inside face of the containers, evenly and intermittently, in successive portions and for a very short period of time, to a temperature higher than that of the softening point of the said thermoplastic strip and which is dependent on the desired extent of bacterial destruction.

REFERENCES:
patent: 3383831 (1968-05-01), Goldsmith et al.
patent: 3413433 (1968-11-01), Timmermans et al.
patent: 3466850 (1969-09-01), Hudsun et al.
patent: 3911642 (1975-10-01), Ernstsson et al.
patent: 4155786 (1979-05-01), Corbic
Kelsey R. J., "Aseptic-Packaging-Machine Design", Modern Packaging, 2/74 pp. 37-40.
Hoger, A, "Infrarotstrahler zur Erwarmung von Thermoplastichem Halbzeug", Kunstofftechnik, vol. 13, No. 6, 1974, pp. 118-121.

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