Multi-ply wiper/towel product with cellulosic microfibers

A multi-ply wiper/towel product of cellulosic fibers, the wiper/towel product comprising:

• (A) at least about 10% fibrillated regenerated cellulosic microfibers having a Canadian Standard Freeness (CSF) value of less than 175 mL and (B) at least about 40% wood pulp derived papermaking fibers,
• the wiper/towel product having formed therein:
• (a) a plurality of fiber-enriched regions including (i) hollow domed portions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof and (ii) pileated fiber-enriched portions with a cross machine direction (CD) fiber orientation bias adjacent to the hollow domed portions, the fiber-enriched portions being interconnected with:
• (b) connecting regions of a relatively lower local basis weight,
• wherein the hollow domed portions have upwardly projecting densified sidewalls, at least a portion of each of the upwardly projecting densified sidewalls comprising a densified region that extends inwardly.

A multi-ply wiper/towel product comprising:

• at least one wet laid web comprising (a) at least about 10% fibrillated regenerated cellulosic microfibers, and (b) at least about 40% wood pulp derived papermaking fibers,
• the wiper/towel product being formed with upper and lower surfaces and comprising:
• (i) a plurality of fiber-enriched hollow domed regions protruding from the upper surface of a sheet, the hollow domed regions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof;
• (ii) connecting regions of a relatively lower local basis weight forming a network interconnecting the fiber-enriched hollow domed regions of the sheet;
• and
• (iii) consolidated groupings of fibers extending upwardly from the connecting regions into the respective sidewalls of the fiber-enriched hollow domed regions formed along at least the leading edge thereof.

A multi-ply wiper/towel product comprising:

• at least one wet laid web comprising (A) at least about 10% fibrillated regenerated cellulosic microfibers having a Canadian Standard Freeness (CSF) value of less than 175 mL, 40% by weight of which is finer than 14 mesh, and (B) at least about 40% wood pulp derived papermaking fibers, the at least one wet laid web having:
• (a) a plurality of fiber-enriched regions including (i) hollow domed portions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof and (ii) pileated fiber-enriched portions with a cross machine direction (CD) fiber orientation bias adjacent to the hollow domed portions, the fiber-enriched portions being interconnected with:
• (b) connecting regions of a relatively lower local basis weight,
• wherein the hollow domed portions have upwardly projecting densified sidewalls, at least a portion of each of the upwardly projecting densified sidewalls comprising a densified saddle shaped region that extends inwardly.

A multi-ply wiper/towel product of cellulosic fibers, the wiper/towel product comprising:

• at least one wet laid web comprising (A) at least about 10% fibrillated regenerated cellulosic microfibers having a Canadian Standard Freeness (CSF) value of less than 175 mL, and (B) at least about 40% wood pulp derived papermaking fibers,
• the wiper/towel product having formed therein:
• (a) a plurality of fiber-enriched regions including (i) hollow domed portions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof and (ii) pileated fiber-enriched portions with cross machine direction (CD) fiber orientation bias adjacent to the hollow domed portions, the fiber-enriched portions being interconnected with:
• (b) connecting regions of a relatively lower local basis weight,
• wherein the hollow domed portions have upwardly projecting densified sidewalls, at least a portion of each of the upwardly projecting densified sidewalls comprising a densified region that extends inwardly.

A multi-ply absorbent sheet comprising:

• at least one wet laid web comprising (a) at least 10% fibrillated regenerated cellulosic microfibers and (b) at least about 40% wood pulp derived papermaking fibers,
• the absorbent sheet comprising a multi-ply wiper/towel product being formed with upper and lower surfaces having formed therein:
• (i) a plurality of fiber-enriched hollow domed regions protruding from the upper surface of the wiper/towel product, the hollow domed regions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof;
• and
• (ii) connecting regions of a relatively lower local basis weight forming a network interconnecting the fiber-enriched hollow domed regions of the wiper/towel product,
• wherein the fibrous composition of the web, the geometry of the fibrillated regenerated cellulosic microfibers, and the number average count are chosen such that the multi-ply wiper/towel product exhibits a wipe-dry time of less than about 20 seconds.

A multi-ply absorbent sheet comprising:

• at least one wet laid web comprising (a) at least 10% fibrillated regenerated cellulosic microfibers and (b) at least about 40% wood pulp derived papermaking fibers,
• the absorbent sheet comprising a multi-ply wiper/towel product being formed with upper and lower surfaces having formed therein:
• (i) a plurality of fiber-enriched hollow domed regions protruding from the upper surface of the wiper/towel product, the hollow domed regions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof;
• and
• (ii) connecting regions of a relatively lower local basis weight forming a network interconnecting the fiber-enriched hollow domed regions of the wiper/towel product,
• wherein the fibrous composition of the web, the geometry of the fibrillated regenerated cellulosic microfibers, and the number average count are chosen such that the multi-ply wiper/towel product exhibits an SAT capacity in the range of about 9.5 to about 11.0 g/g.

A multi-ply wiper/towel product comprising:

• at least one wet laid web comprising (a) at least about 10% fibrillated regenerated cellulosic microfibers and (b) at least about 40% wood pulp derived papermaking fibers,
• the wiper/towel product being formed with upper and lower surfaces comprising:
• (i) a plurality of fiber-enriched hollow domed regions protruding from the upper surface of the wipe/towel product, the hollow domed regions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof;
• and
• (ii) connecting regions of a relatively lower local basis weight forming a network interconnecting the fiber-enriched hollow domed regions of the wiper/towel product,
• wherein consolidated groupings of fibers extend upwardly from the connecting regions into the sidewalls of the fiber-enriched hollow domed regions formed along at least the leading edge thereof, and
• wherein the wiper/towel product exhibits a relative wipe dry time that is less than 50% of the wipe dry time exhibited by a conventional wipe of the same fibrous composition, but without fibrillated regenerated cellulosic microfibers.

A multi-ply absorbent sheet comprising:

• at least one wet laid web comprising (a) at least 10% fibrillated regenerated cellulosic microfibers and (b) at least about 40% wood pulp derived papermaking fibers,
• the absorbent sheet comprising a wiper/towel product being formed with upper and lower surfaces having formed therein:
• (i) a plurality of fiber-enriched hollow domed regions protruding from the upper surface of the wiper/towel product, the hollow domed regions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof;
• and
• (ii) connecting regions of a relatively lower local basis weight forming a network interconnecting the fiber-enriched hollow domed regions of the wiper/towel product,
• wherein the fibrous composition of the web, the geometry of the fibrillated regenerated cellulosic microfibers, and the number average count are chosen such that the wiper/towel product exhibits a wipe dry time of less than about 20 seconds and a differential pore volume of at least about 10% for pores under 5 microns in diameter.

A multi-ply absorbent sheet comprising:

• at least one wet laid web comprising (a) at least about 10% fibrillated regenerated cellulosic microfibers and (b) at least about 40% wood pulp derived papermaking fibers,
• the multi-ply absorbent sheet comprising a wiper/towel product being formed with upper and lower surfaces comprising:
• (i) a plurality of fiber-enriched hollow domed regions protruding from the upper surface of the sheet, the hollow domed regions having respective sidewalls of a relatively high local basis weight formed along at least a leading edge thereof;
• and
• (ii) connecting regions of a relatively lower local basis weight forming a network interconnecting the fiber-enriched hollow domed regions of the sheet,
• wherein the fibrous composition of the web, the geometry of the fibrillated regenerated cellulosic microfibers, and the number average count are chosen such that the multi-ply wiper/towel product exhibits a differential pore volume of at least about 10% for pores under 5 microns in diameter, and an SAT capacity in the range of about 9.5 to about 11.0 g/g.