Process for washing refillable plastic bottles
OwnerPatrice Robichoninventor
Life of this patent
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Abstract
The present invention relates to a process for washing a container, especially a food or drink container, of the bottle type, and intended to be re-employed, especially for a use with foodstuffs, in which: the reusable container is made of a homopolymer or a copolymer or a mixture of polymers, which is transparent and which has an average degree of crystallinity higher than 30%, the thickness of the walls of the container being greater than: 0.35 mm with regard to the body 1.00 mm at the base 1.00 mm at the bottom, and said container is washed with an aqueous solution at a temperature higher than 70.degree. C.
Claims17
A process for washing a reused container containing organic contaminating agents, said container intended to be reused and having a body, a bottom on which the container rests and a base portion extending from the body to the bottom, wherein the reusable container is made of a homopolymer or a copolymer or a mixture of a homopolymer and a copolymer, wherein said homopolymer or said copolymer or said mixture of a homopolymer and a copolymer includes one or more aromatic polyesters, further wherein said homopolymer or said copolymer or said mixture of a homopolymer and a copolymer of said container is transparent and has an average degree of crystallinity higher than 30%, the thickness of the container being greater than:
- 0.35 mm with regard to the body,
- 1.00 mm as the base portion,
- 1.00 mm at the bottom, said process comprising
- washing for re-use said container with an aqueous solution containing a base at a temperature higher than 70.degree. C.
Dependencies are inferred from the claim text.