Thin film for waste packing cassettes

1. A multilayer film having a weight per surface ratio of less than 25 g/m 2 for use in malodorous item packaging, where the film comprises at least an outer layer comprising a self-adhesive material and a layer comprising an oxygen barrier material; where the layer comprising the self-adhesive material is configured to be in direct contact with an item packed in the film when the film is in use for packaging and wherein the self-adhesive material comprises a material selected from the group consisting of an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 20%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 25%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 30%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 40%, a propylene ethylene copolymer where the ethylene content is at least 10% per weight, styrene copolymers with a styrene content of less than 50% per weight, an ethylene alpha olefin copolymer with a density less than 0.9 g/cm 3 , a maleic anhydrite grafted polyolefin, an ethylene methyl acrylate copolymer with a methyl acrylate content of at least 20%, an ethylene butyl acrylate material with a butyl acrylate content of at least 15%, a poly-isobutylene polymer (PIB), a polybutene copolymer, a silicone elastomer, and mixtures thereof.

2. The film of claim 1 , where the weight per surface ratio of the film is less than 20 g/m 2 .

3. The film of claim 1 , where the weight per surface ratio of the film is less than 15 g/m 2 .

4. The film of claim 1 , where the film comprises or consists of the structure:

OUTER LAYER/ABUSE LAYER/INTERMEDIATE LAYER/BARRIER LAYER/INTERMEDIATE LAYER/ABUSE LAYER/INNER LAYER.

5. The film of claim 1 , where the film comprises or consists of the structure:

OUTER LAYER/INTERMEDIATE LAYER/BARRIER LAYER/INTERMEDIATE LAYER/INNER LAYER.

6. The film of claim 1 , where the self-adhesive material comprises ethylene vinyl acetate copolymer, where the vinyl acetate weight ratio is at least 20%.

7. The film of claim 1 , where the self-adhesive material comprises ethylene vinyl acetate copolymer, where the vinyl acetate weight ratio is at least 25%.

8. The film of claim 1 , where the self-adhesive material comprises ethylene vinyl acetate copolymer, where the vinyl acetate weight ratio is at least 30%.

9. The film of claim 1 , where the self-adhesive material comprises ethylene vinyl acetate copolymer, where the vinyl acetate weight ratio is at least 40%.

10. The film of claim 1 , where the self-adhesive material comprises a propylene ethylene copolymer where the ethylene content is at least 10% per weight, or

an ethylene alpha olefin copolymer with density less than 0.9 g/cm 3 , or

a maleic anhydrite grafted polyolefin, or

styrene copolymers with styrene content less than 50% per weight, or

an ethylene methyl acrylate copolymer with a methyl acrylate content of at least 20%, or

an ethylene butyl acrylate material with a butyl acrylate content of at least 15%, or

a poly-isobutylene polymer (PIB) or a polybutene copolymer, or

a silicone elastomer,

or mixtures thereof.

11. The film of claim 10 , where the self-adhesive material comprises an ethylene alpha olefin copolymer with a density less than 0.880 g/cm 3 .

12. The film of claim 1 , where the barrier layer comprises EVOH, polyamide or mixtures thereof.

13. The film of claim 1 , where the film comprises an inner layer comprising a polyolefin.

14. The film of claim 13 , where the inner layer comprises an ethylene alpha olefin copolymer.

15. The film of claim 1 , where the film comprises an inner layer comprising a substantially non resilient material.

16. A multilayer film having a weight per surface ratio of less than 25 g/m 2 for use in malodorous item packaging, where the film comprises at least an outer layer comprising a self-adhesive material; a layer comprising an oxygen barrier material; and an inner layer comprising a substantially non resilient material, wherein the self-adhesive material is selected from the group consisting of an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 20%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 25%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 30%, an ethylene vinyl acetate copolymer where the vinyl acetate weight ratio is at least 40%, a propylene ethylene copolymer where the ethylene content is at least 10% per weight, and a styrene copolymer with a styrene content of less than 50% per weight.