Hermetic, Insecticidal Food Storage Bag, Use of It and a Method for Its Production
AssigneeVestergaard SàRl
InventorsMikkel Vestergaard Frandsen, Thomas Weis, Allan Mortensen
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Abstract
A crop storage bag (1) made is of a high-strength textile (7) material which is extrusion-coated or laminated with a multilayer film (8) that comprises an insecticidal layer (9) in addition to a hermetic layer (10) which prevents oxygen from entering the bag. This oxygen barrier suffocates the insects inside the bag, and the insecticide kills insects that try to bore through the bag.
Claims33
A method for producing a hermetic insecticidal crop storage textile bag (1), the bag comprising an inner side facing an inner volume and an opposite outer side facing the environment, wherein the method comprises providing the bag (1) with a textile layer forming the inner side of the bag, wherein the textile is woven, knitted, or non-woven, and providing the bag (1) with a polymer multilayer film (8, 18) only on the outer side;
- wherein the multilayer film (8) comprises an insecticidal polymer layer (9) in which an insecticide is melt-incorporated for preventing intrusion of insects into the bag (1) by the insecticidal polymer layer (9);
- wherein the method comprises including at least one oxygen barrier polymer layer (10) in the multilayer film (8, 18) for providing an Oxygen Transmission Rate, OTR, through the multilayer film (8) sufficiently low for preventing breeding or killing potential insects inside the bag (1) when the bag (1) is in closed condition.
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Dependencies are inferred from the claim text.