Tubular casing with glued seam and process for its manufacture
AssigneeHoechst Aktiengesellschaft
InventorsKlaus Andra, Elfriede Hutschenreuter, Walter Seifried
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Abstract
A tubular casing for foodstuffs, in particular sausages, comprising a web (4) which is curved along its longitudinal axis and having its longitudinal edge regions (1, 2) bonded by a glued seam. The edge regions (1, 2) meet or overlap and are bonded with a strip of film (6). A pressure-sensitive adhesive is used for the bonding. The tubular casing carries an adhesion-promoting layer (5) on the surface adjacent to the adhesive layer (3). Preferably, the strip of film and the edge regions of the web are comprised of a smoke-permeable material, and optionally the pressure-sensitive adhesive layers also have a smoke-permeable structure, such as perforations. The tubular casing can also be shirred.
Claims22
A seamed tubular casing suitable for containing foodstuffs, comprising:
- a web of material curved about its longitudinal axis in such a manner that its two longitudinal edge regions are positioned to form a seam;
- a layer of substantially water-insoluble adhesion-promoting resin covering at least one of the inside and outside surfaces of said web in at least the area of said two edge regions;
- a strip of film applied to said longitudinal edge regions forming the seam;
- and
- a layer of pressure-sensitive adhesive interposed between said strip of film and the edge regions of said web of material, whereby the seam is sealed by said strip of film, via said layer of pressure-sensitive adhesive and said layer of adhesion-promoting resin.
A seamed tubular casing suitable for containing foodstuffs, comprising:
- a web of material curved about its longitudinal axis in such a manner that its two longitudinal edge regions are overlapped to form a seam;
- a layer of substantially water-insoluble adhesion-promoting resin applied to both the inside and outside surfaces of said web in at least the area of said two edge regions;
- and
- a layer of pressure-sensitive adhesive interposed between said overlapping edge regions, whereby the seam is sealed via said layer of pressure-sensitive adhesive and said layer of adhesion-promoting resin.
Dependencies are inferred from the claim text.