Comfort layer for a collecting bag

Patent metadata

Field	Value
Publication number	US-10973677-B2
Application number	US-201816005708-A
Country	US
Kind code	B2
Filing date	Jun 12, 2018
Priority date	May 25, 2012
Publication date	Apr 13, 2021
Grant date	Apr 13, 2021

Abstract

A collecting bag for human body wastes having a barrier film covered by a comfort layer attached to the barrier film in an attachment zone wherein the comfort layer is a textile material that is attached to said barrier film in one or more zones of attachment and wherein threads of the textile material have a higher melting point than that of the barrier film material in the attachment zone.

First claim

The invention claimed is:

1. A bag for collecting human body effluents comprising two opposing layers of a barrier film material sealingly joined to each other along a portion of an outer periphery of the opposing layers of the barrier film material, an external surface of at least one of the barrier film material layers covered by a comfort layer, wherein the comfort layer is a textile material having a number of threads, each of the threads comprising a plurality of fiber filaments, wherein the textile material is one of a woven textile material and a knitted textile material that is attached to the barrier film material in an attachment zone along the portion of the outer periphery of the opposing layers of the barrier film material, and wherein the threads of the textile material have a higher melting point than that of the barrier film material in the attachment zone.

2. The collecting bag according to claim 1 , wherein less than an entirety of the fiber filaments of the textile material in the attachment zone are embedded in the barrier film material.

3. The collecting bag according to claim 1 , wherein a peel strength between the comfort layer and the barrier film layer is above 5 N/12.5 mm width in the attachment zone.

4. The collecting bag according to claim 1 , wherein the attachment zone is formed by the barrier film material being configured to flow into spaces between the fiber filaments of the textile material in response to heat being applied, wherein the textile material is a woven textile material and wherein each individual thread comprises between 30-150 individual fibers.

5. The collecting bag according to claim 1 , wherein any fiber filaments in the attachment zone that are not embedded in the barrier film layer material provide a first portion of an external surface of the comfort layer having visual or tactile characteristics identical to visual or tactile characteristics in a second portion of the external surface of the comfort layer, the second portion located outside the attachment zone.

6. The collecting bag according to claim 1 , wherein the textile material is a knitted material.

7. The collecting bag according to claim 1 , wherein the textile material is a woven material.

8. The collecting bag according to claim 1 , wherein a weight of the textile material is in the range of 40-100 g/m2.

9. The collecting bag according to claim 1 , wherein a thread density of the textile material is in the range of 30-50 threads/cm.

10. The collecting bag according to claim 1 , wherein a number of filaments per thread is in the range of 30-150 filaments/thread.

11. The collecting bag according to claim 1 , wherein a thickness of the textile material is in the range of 100-1000 μm.

12. The collecting bag according to claim 1 , wherein a thickness of the barrier film is in the range of 60-300 μm.

13. The collecting bag according to claim 1 , wherein the textile material has an increased wear strength compared to a nonwoven comfort layer as measured by resistance to pilling evaluated according to test standard DS/EN ISO 12945-2:2000.

14. The collecting bag according to claim 1 , wherein the textile material has improved resistance to pilling after washing as compared to a nonwoven comfort layer.

15. The collecting bag according to claim 1 , wherein the textile material has an increased wear strength compared to a nonwoven comfort layer as measured by resistance to snagging evaluated according to test standard ASTM D3939-11.

16. An ostomy device comprising:
an adhesive base plate configured to be attached to a peristomal skin surface of a user, the adhesive base plate having a through-going hole defined around a first central axis of the through-going hole; and
a bag adapted for collecting stomal effluents, the bag comprising:
first and second barrier film material layers defining a joint outer periphery and connected to each other along a portion of the joint outer periphery, the first barrier film material layer including an inlet opening defined around a second central axis of the inlet opening aligned with the first central axis of the through-going hole of the base plate; and
a textile material layer covering an external surface of at least one of the first and second barrier film material layers, the textile material layer having a number of threads each comprising a plurality of fiber filaments;

wherein, the textile material layer is welded to the at least one of the first and second barrier film material layers in an attachment zone along the joint outer periphery, and
wherein the threads of the textile material have a higher melting point than that of the barrier film material in the attachment zone.

17. A method for manufacturing a collecting bag for human body wastes comprising the steps of:
providing two opposing layers of a barrier film material,
providing a textile comfort layer having a higher melting point than the barrier film material,
covering an exterior portion of at least one of the two opposing layers of the barrier film material with the textile comfort layer,
applying heat and pressure by a welding process and melting the barrier film material, but not the textile comfort layer, so that some, but not all, fibre filaments of threads of said textile comfort layer are embedded in melted barrier film material at an outer periphery of the two opposing layers of the barrier film material, and thus attaching the textile comfort layer to the barrier film material.

18. The method of claim 17 , comprising covering the exterior portion of one of the two opposing layers of the barrier film material with a first textile comfort layer and covering the exterior portion of a second of the two opposing layers of the barrier film material with a second textile comfort layer.

19. An ostomy bag comprising:
a first barrier film sealed to a second barrier film along a portion of a melted outer periphery of the first barrier film and the second barrier film to form a pouch;
a first comfort layer covering a portion of the first barrier film;
wherein the first comfort layer is a textile material having a number of threads, and the textile material is one of a woven textile material and a knitted textile material;
wherein the threads of the textile material have a higher melting point than a melting point of the first barrier film material such that the threads of the textile material of the first comfort layer are embedded into the melted outer periphery of the first barrier film and the second barrier film.

Assignees

• Coloplast As

Inventors

• Freiding Markus

Classifications

• B31B70/64

  by applying heat or pressure (to unite areas where adhesives are applied B31B70/62) · CPC title

• A61F5/4404

  Details or parts · CPC title

• A61F5/445 Primary

  Colostomy, {ileostomy or urethrostomy} devices (A61F5/441, A61F5/442, A61F5/443 take precedence) · CPC title

• B31B70/00

  Making flexible containers, e.g. envelopes or bags · CPC title

• B31B2241/00

  Making bags or boxes intended for a specific use · CPC title