Process for the manufacture of multilayered wound dressings
AssigneeAvery Dennison Corporation
InventorsJohannes H.A. de Jong, Roger D. A. Lipman, Patrick Thomas, Dirk I. H. Nijns
Life of this patent
Estimating the term…
Abstract
A continuous process for manufacturing a multilayered wound dressing including an apertured wound contact layer, an absorbent material layer and a backing layer, including (a) providing a substantially continuous first web comprising the wound contact layer and a first process release liner; (b) forming a plurality of apertures through the wound contact layer; (c) applying the absorbent material layer to the wound contact layer; (d) laminating a substantially continuous web of the backing layer over the absorbent material layer to form the composite web; and (e) cutting individual multilayered wound dressings from the composite web.
Claims26
A method of manufacturing a multilayered wound dressing comprising an apertured wound contact layer, an absorbent material layer and a backing layer, comprising:
- (a) providing a substantially continuous first web comprising the wound contact layer having a first and second major face and a first process release liner adhered to the first major face of the wound contact layer;
- (b) forming a plurality of apertures through the wound contact layer;
- (c) applying a discrete absorbent material layer from a substantially continuous web of the absorbent material layer to the second major face of the wound contact layer
- (d) laminating a substantially continuous web of the backing layer over the absorbent material layer to form the composite web;
- and
- (e) cutting individual multilayered wound dressings from the composite web,
- wherein the steps (a)-(e) are carried out in a continuous sequence.
A method of manufacturing a multilayered wound dressing comprising a wound contact layer, an absorbent material layer and a backing layer, comprising:
- (a) providing a substantially continuous first web comprising the wound contact layer having a first and second major face and a first process release liner adhered to the first major face of the wound contact layer;
- (b) applying a discrete absorbent material layer from a substantially continuous web of the absorbent material layer to the second major face of the wound contact layer, wherein the absorbent material comprises a plurality of absorbent fibers;
- (c) laminating a substantially continuous web of the backing layer over the absorbent material layer to form the composite web;
- (d) applying pressure to the composite web sufficient to drive fibers of the absorbent material layer into the wound contact layer;
- and
- (e) cutting individual multilayered wound dressings from the composite web,
- wherein the steps (a)-(e) are carried out in a continuous sequence.
Dependencies are inferred from the claim text.