Stretched tubular film for holding foodstuff

Details Stretched tubular film for holding foodstuff Stretched tubular film for holding foodstuff

1997-02-07

1999-09-14

Robinson, Ellis

Stock material or miscellaneous articles

Hollow or container type article

Flexible food casing

428 352, 428 357, 428 369, 426105, 4261181, 426135, 426129, 426413, 264188, 264197, 264198, A22C 1300, B29D 2200, A23G 100, D01F 1102

Patent

active

059520647

ABSTRACT:
A tubular film for encasing food. The tubular film comprises a material which has been regenerated from a viscose solution. The tubular material is longitudinally stretched by from +8 to +40 percent and transversely stretched by from -20 to +40 percent while wet and the stretch is maintained during drying, said transverse stretch and longitudinal stretch being sufficient to obtain a surface area increase of at least 10 percent from the point of regeneration. In general, the tubular material has a wall thickness of from about 60 to about 90 percent of the same tubular material except without the combined stretch. The invention also includes the method for making the tubular material by stretching the regenerated tubular material while wet and maintaining the stretch during drying.

REFERENCES:
patent: 2901358 (1959-08-01), Underwood et al.
patent: 2999756 (1961-09-01), Shiner et al.
patent: 2999757 (1961-09-01), Shiner et al.
patent: 3835113 (1974-09-01), Burke et al.
patent: 4356200 (1982-10-01), Hammer et al.
patent: 4563231 (1986-01-01), Porrmann et al.
patent: 4590107 (1986-05-01), Bridgeford
patent: 4784186 (1988-11-01), Stenger et al.
patent: 5658524 (1997-08-01), Portnoy et al.

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