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US 4,377,606 AGranted
Liquid smoke-impregnation of fibrous food casings
AssigneeUnion Carbide Corporation
InventorHerman S. Chiu
Life of this patent
Estimating the term…
Abstract
Aqueous wood smoke is coated on tensioned fibrous reinforced dry stock cellulosic food casing in the flat form, and impregnates the casing wall while the latter is in a tensioned roll.
Claims18
A method for manufacturing a wood-derived liquid smoke impregnated fibrous cellulosic casing comprising the steps of:
- (a) providing a dry stock fibrous cellulosic casing in flattened form;
- (b) providing a source of wood-derived liquid smoke having color, odor and flavor constituents;
- (c) moving said flat fibrous casing through a liquid smoke coating zone and contacting at least one outer surface of the moving flat fibrous casing with said liquid smoke under conditions to coat said surface but not substantially impregnate the casing wall;
- (d) moving the liquid smoke coated flat casing from said coating zone to a reeling zone;
- (e) winding the liquid smoke coated flat casing in the reeling zone into a rotating roll of overlying layers under conditions sufficient to trap the liquid smoke coating between adjacent layers of casing in the roll;
- and
- (f) continuing the rotation of the liquid smoke coated casing roll under conditions such that at least a portion of the liquid smoke impregnates each layer wall of said casing.
4 more elements
A method for manufacturing a wood-derived liquid smoke impregnated fibrous cellulosic casing comprising the steps of:
- (a) providing a dry stock fibrous cellulosic casing in flattened form;
- (b) providing a source of wood-derived liquid smoke having color, odor and flavor constituents;
- (c) moving said flat fibrous casing through a liquid smoke coating zone and contacting at least one outer surface of the moving flat fibrous casing with said liquid smoke to coat said surface under conditions including both a contact time which is less than that required for the liquid smoke to substantially impregnate the casing wall, and a casing speed sufficient for retention of said liquid smoke as a substantially uniformly distributed liquid film on said outer surface;
- (d) moving the liquid smoke coated flat casing from said coating zone to a reeling zone;
- (e) winding the liquid smoke coated flat casing in the reeling zone into a rotating roll of overlying layers, with said liquid film being sandwiched between adjacent layers such that a portion of the liquid film impregnates each layer wall;
- (f) applying sufficient inward radial force on the casing entire edge-to-edge outer surface of the rotating roll to squeeze excess liquid from the roll layers;
- and
- (g) maintaining the rotation speed of the liquid film-containing roll at sufficient low speed to retain the substantially uniform liquid film distribution between the casing layers.
5 more elements
Dependencies are inferred from the claim text.