Odor control cassette
View Patent ↗A film is provided for use in a cassette. Preferably, the cassette is used in a waste disposal system. The film is a high density polyethylene film resin having both a low melt index and a high density, thereby providing improved odor control capabilities and enhanced tear strength and assembly strength.
1. A method of controlling odor in a disposal system comprising:
providing a cassette having a non-resilient flexible tubing, said tubing being positioned in an annular space of said cassette, said tubing comprising a mono-layer high density polyethylene film resin with an Elmdorf tear strength in the range of 9 g to 20 g in the mold direction and in the range of 30 g to 400 g in the direction transverse to the mold direction, a melt index in the range of 0.1 g/10 min to 0.50 g/10 min and a density in the range of 0.90 g/cm 3 to 0.99 g/cm 3 ;
depositing waste into said tubing; and
manipulating said tubing into a discrete area of enclosure for said waste.
2. The method of claim 1 , wherein said film has an organic permeant transmission rate of less than about 3.3×10 6 μl/m 2 -day, said organic permeant transmission rate being measured based upon transmission of 1-pentanethiol, valeric acid, p-cresol and indole.
3. The method of claim 1 , wherein said density is about 0.90 g/cm 3 .
4. The method of claim 1 , wherein said film has a tensile strength at break in a mold direction of 7,000 psi to 13,000 psi.
5. The method of claim 1 , wherein said film has a tensile strength at break in a transverse direction of 6,000 psi to 10,000 psi.
6. The method of claim 1 , wherein said film has an elongation at break in a mold direction of 250% to 500%.
7. The method of claim 1 , wherein said film has an elongation at break in a transverse direction of 300% to 700%.
8. The method of claim 1 , wherein said tubing has a thickness in the range of 7 μm to 30 μm.
9. The method of claim 1 , further comprising adding a colorant to said film.
10. The method of claim 1 , further comprising adding a deodorant to said film.
11. The method of claim 1 , further comprising adding a fragrance to said film.
12. A method of controlling odor in a disposal system comprising:
providing a cassette having a non-resilient flexible tubing, said tubing being positioned in an annular space of said cassette, said tubing comprising a mono-layer high density polyethylene film resin with an Elmdorf tear strength in the range of 9 g to 20 g in the mold direction and in the range of 30 g to 400 g in the directrion transverse to the mold direction, a low melt index and a high density, wherein said flexible tubing has an organic permeant transmission rate of less than about 3.3×10 6 μl/m 2 -day, said organic permeant transmission rate being measured based upon transmission of 1-pentanethiol, valeric acid, p-cresol and indole;
depositing waste into said tubing; and
manipulating said tubing into discrete areas of enclosure for said waste.
13. The method of claim 12 , wherein said melt index is in the range of 0.1 g/10 min to 0.50 g/10 min.
14. The method of claim 12 , wherein said density is in the range of 0.90 g/cm 3 to 0.99 g/cm 3 .
15. The method of claim 12 , wherein said film has a tensile strength at break in a mold direction of 7,000 psi to 13,000 psi.
16. The method of claim 12 , wherein said film has a tensile strength at break in a transverse direction of 6,000 psi to 10,000 psi.
17. The method of claim 12 , wherein said film has an elongation at break in a mold direction of 250% to 500%.
18. The method of claim 12 , wherein said film has an elongation at break in a transverse direction of 300% to 700%.
19. The method of claim 12 , wherein said tubing has a thickness in the range of 7 μm to 30 μm.
20. The method of claim 12 , further comprising adding a colorant to said film.
21. The method of claim 12 , further comprising adding a deodorant to said film.
22. The method of claim 12 , further comprising adding a fragrance to said film.