Absorbent articles containing binder carrying high bulk fibers
AssigneeWeyerhaeuser Company
InventorsMichael R. Hansen, Richard H. Young, Sr.
Life of this patent
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Abstract
A method of producing easily densified high bulk fibers that have adhered particulates. The fibers have hydrogen bonding or coordinate covalent bonding functionalities, and a binder is applied to the fibers to bind the particles to the fibers. The binder has a functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and a functional group that forms a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.
Claims10
An absorbent article including high bulk fibers comprising:
- individualized fibers that have hydrogen bonding functional sites and intrafiber covalent bonds that provide the fiber with increased bulk;
- and
- a binder on the fibers for binding particles to the fibers, the binder having a volatility less than water and a functional group that forms a hydrogen bond or a coordinate covalent bond with at least a portion of the particles, and a functional group that forms a hydrogen bond with the fibers, the bind being present on the high bulk fibers in a sufficient amount to bind at least a portion of the particles in an amount of at least 0.05% by weight of the fiber, binder and particles.
Dependencies are inferred from the claim text.