Multifunctional fibrous material with improved edge seal
AssigneeBKI Holding Corporation
InventorsJohn P. Erspamer, Jeffrey S. Hurley, Brian E. Boehmer, Derrix Betts
Life of this patent
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Abstract
This invention relates to fibrous absorbent articles containing particles useful in the manufacture of disposable diapers, adult incontinence pads, sanitary napkins and the like, scrubbing pads, scouring pads and cleaning pads that contain a detergent or soap and the like, and pads that contain coffee, tea, and the like More particularly, the invention is directed to an absorbent articles having sealed lateral edges to contain loose fibers and particles within the structure. Additionally, this invention is related to airlaid methods to manufacture unitary absorbent products.
Claims28
A fibrous web comprising:
- (a) a lower stratum comprising thermoplastic fibers and matrix fibers which are cellulosic fibers or a blend of cellulosic fibers and synthetic fibers;
- and
- (b) an upper stratum comprising thermoplastic fibers and matrix fibers which are cellulosic fibers or a blend of cellulosic fibers and synthetic fibers;
- wherein a plurality of functional particle areas comprised of superabsorbent polymers are positioned between said upper stratum and said lower stratum so as to contact each of said upper and lower strata, each of said functional particle areas being separated from other functional particle areas by a seal area comprising a seal formed between said upper and said lower strata.
An absorbent article comprising:
- (a) a lower stratum comprising thermoplastic fibers and cellulosic fibers or a blend of cellulosic fibers and synthetic fibers;
- (b) an upper stratum comprising thermoplastic fibers and cellulosic fibers or a blend of cellulosic fibers and synthetic fibers;
- (c) a functional particle area comprised of superabsorbent polymers positioned between said upper stratum and said lower stratum so as to contact each of said upper and lower strata;
- and
- (d) a seal area comprising a seal formed between said upper and said lower strata, said seal area being substantially free of functional particles.
The article of claim having a stiffness in the non-seal area of less than 200 mg.
An absorbent article comprising:
- (a) a fluid pervious topsheet;
- (b) a second stratum in fluid contact with said fluid pervious top sheet, said stratum comprising thermoplastic fibers and cellulosic fibers or a blend of cellulosic fibers and synthetic fibers;
- (c) an upper stratum comprising thermoplastic fibers and cellulosic fibers or a blend of cellulosic fibers and synthetic fibers;
- (d) a functional particle area comprised of superabsorbent polymers positioned between said upper stratum and said lower stratum so as to contact each of said upper and lower strata;
- (e) a seal area comprising a seal formed between said upper and said lower strata, said seal area being substantially free of functional particles;
- and
- (f) a fluid impervious backsheet.
Dependencies are inferred from the claim text.