Hydroxyl polymer fiber fibrous structures and processes for making same
AssigneeThe Procter & Gamble Company
InventorsDavid William Cabell, David Warren Loebker, Paul Dennis Trokhan
Life of this patent
Estimating the term…
Abstract
Hydroxyl polymer fiber fibrous structures and processes for making same are provided. More particularly, hydroxyl polymer fiber fibrous structures comprising a non-naturally occurring hydroxyl polymer fiber wherein the fibrous structure exhibits a total pore volume of pores in the range of greater than 20 μm to 500 μm of greater than 3.75 mm3/mg of dry fibrous structure mass, and/or fibrous structures comprising a hydroxyl polymer fiber and a solid additive are provided.
Claims18
A spun, thermally bonded fibrous structure comprising a plurality of spun, monocomponent, non-naturally occurring polysaccharide fibers comprising a crosslinked polysaccharide selected from the group consisting of:
- starch, starch derivatives, and mixtures thereof, wherein the polysaccharide fibers exhibit a length of greater than 3.81 cm and one or more of the polysaccharide fibers exhibits a fiber diameter of less than 10 microns as determined by the Fiber Diameter Test Method described herein, and a plurality of solid additives comprising naturally occurring fibers that are entrained within the fibrous structure.
A spun, thermally bonded fibrous structure comprising a plurality of spun, monocomponent, non-naturally occurring hydroxyl polymer fibers that exhibit a length of greater than 3.81 cm and one or more of the spun, non-naturally occurring hydroxyl polymer fibers exhibits a fiber diameter of less than 10 microns as determined by the Fiber Diameter Test Method described herein, and solid additives comprising naturally occurring fibers that are entrained within the fibrous structure, wherein the spun, non-naturally occurring hydroxyl polymer fibers comprise a crosslinked polysaccharide selected from the group consisting of:
- starch, starch derivatives, and mixtures thereof, are present at a greater bone dry weight than the solid additives wherein the fibrous structure exhibits a total pore volume of greater than 3.75 mm3/mg of dry fibrous structure mass for pores with an effective pore radius in the range of 20 μm to 500 μm.
A spun, thermally bonded fibrous structure comprising a plurality of spun, monocomponent, non-naturally occurring hydroxyl polymer fibers that exhibit a length of greater than 3.81 cm and one or more of the spun, non-naturally occurring hydroxyl polymer fibers exhibits a fiber diameter of less than 10 microns as determined by the Fiber Diameter Test Method described herein, wherein the spun, non-naturally occurring hydroxyl polymer fibers comprise a crosslinked polysaccharide selected from the group consisting of:
- starch, starch derivatives, and mixtures thereof, and a pore volume enhancing system that increases the total pore volume of the fibrous structure for pores with an effective pore radius in the range of 20 μm to 500 μm compared to the total pore volume for pores with an effective pore radius in the range of 20 μm to 500 μm of the same fibrous structure without the pore volume enhancing system, wherein the pore volume enhancing system comprises naturally occurring fibers that are entrained within the fibrous structure.
Dependencies are inferred from the claim text.