Iced food shipping container with aqueous liquid absorbing pad
AssigneeE. I. Du Pont de Nemours and Company
InventorThomas I. Bair
Life of this patent
Estimating the term…
Abstract
An iced food shipping container and a novel aqueous liquid absorbing pad for use therein are provided. The pad comprises superabsorbing polymer particles distributed in a polyester carded web contained between hydrophilic fabric outer layers. The pad can absorb more than 100 times its dry weight in water and other aqueous liquids that form during iced food shipment.
Claims5
A composite nonwoven article, particularly suited for use in an iced food shipping container, comprising a fibrous, lightly bonded nonwoven web having superabsorbing powder granules dispersed therethrough, the web being enclosed within a hydrophilic outer fabric and lightly bonded thereto,
- the lightly bonded nonwoven web being a carded web having a dry weight in the range of 50 to 170 grams per square meter and comprising binder and matrix fibers, the binder having a lower melting temperature than the matrix fibers and constituting no more than 25% of the total weight of the fibrous web,
- the superabsorbing particles having a dry weight in the range of 25 to 125 g/m.sup.2, and a weight average size in the range of about 75 to 800 microns, the particles amounting to 5 to 50 percent of the weight of the composite article, and
- the composite nonwoven article being capable of absorbing aqueous liquids amounting to at least 75 times its own dry weight.
Dependencies are inferred from the claim text.