Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1992-08-17
1996-07-23
Raimund, Christopher W.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428289, 428913, B32B 516
Patent
active
055387837
ABSTRACT:
Particles are bound to fibrous materials by a non-polymeric binder selected from the group consisting of an alcohol, a carboxylic acid, an aldehyde, an amino acid, an amide, and a polyamine. Particular disclosed binders include glycerin, glyoxal, ascorbic acid, urea, glycine, pentaerythritol, a monosaccharide and a disaccharide. The fibrous material is preferably cellulose fibers, and the particles are preferably superabsorbent particles. Fibers that incorporate the particles and binder preferably include 3-80% binder and 0.05-80% particles, by weight of the total weight of the fibrous material, binder and particles. Particles adhered to the fibers with the binder are firmly adhered and are not easily dislodged, hence products incorporating the fibers retain the desired property imparted by the particles, such as absorbency. Fibrous products produced by this method include fibers to which particles are bound, and fibers which have been treated with the binder but to which particles are not bound.
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