Coated fiber product with adhered super absorbent particles
AssigneeWeyerhaeuser Company
InventorsRichard H. Young, Sr., Amar N. Neogi, Michael R. Hansen
Life of this patent
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Abstract
Discontinuous fibers are coated with a binder material with the binder material adhering the fibers to super absorbent particles. Fibers in the product are substantially unbonded except to the super absorbent particles. The binder may be present at an amount which is sufficient to substantially continuously coat the fibers. Plural coatings of various binder materials may be used. The binder material may be heat fusible or heat curable and the treated fibers mixed with other fibers for use in producing a wide variety of products.
Claims19
A fiber product which comprises discontinuous fibers coated at least partially with a thermoset binder material and which have solid particles of super absorbent material adhered to the fibers by the thermoset binder material without the binder covering the particles, a substantial majority of the fibers being substantially unbonded together.
A cellulose product comprising cellulose fibers coated at least partially with a liquid heat fusible binder coating having a hot tack or heat curing temperature, particles of a super absorbent material adhered to the fibers by at least partially drying the heat fusible binder at a temperature below the heat tack or heat curing temperature without the super absorbent particles being covered by the binder, the heat fusible binder having been thereafter heated to a temperature above the tack or heat curing temperature to heat bond the coated fibers into a web.
Dependencies are inferred from the claim text.