Patent CA1241504A successfully refreshed from Google Patents.
CA1241504A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Disposable diaper with folded absorbent batt
Assignee: Personal Products Co
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Filing: 1984-11-29
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Granted: 1988-09-06
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Expires: 2004-11-29
Abstract
Abstract ABSTRACT An improved absorbent unit for a disposable diaper, or the like, wherein the batt is initially generally rectangularly shaped, and is cut so as to define side flaps which are folded over into overlapping relationship with one another in the central portion of the batt to define a multiple layer crotch region for increased liquid storage capacity. The batt is provided with a thickened densified skin at one side thereof for increased strength and stability, and for transporting liquid into remote areas of the batt.
Inventors
- 👤 Frederick K. Mesek
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-05 04:18
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/53409; A61F13/53427; A61F2013/530481; A61F2013/53051; A61F2013/530547; A61F2013/530562
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
241 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said batt having a generally I-shaped configuration and formed from an initially generally rectangular member having end portions and a central portion, said central portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded into overlapping relationship with one another, whereby the central portion of said batt includes (1) a first densified layer adjacent said first outer layer, (2) a first loosely compacted layer adjacent to said first densified layer, (3) a second loosely compacted layer adjacent to said first loosely compacted layer, (4) a second densified layer adjacent to said second loosely compacted layer, (5) a third loosely compacted layer adjacent to said second densified layer, and (6) a third outwardly facing densified layer, said inwardly folded flap sections thereby defining said generally I-shaped configuration and providing increased liquid holding capacity in the central portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 2
Dependent Claim
241 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said batt having a generally I-shaped configuration and formed from an initially generally rectangular member having end portions and a central portion, said central portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded into overlapping relationship with one another, whereby the central portion of said batt includes (1) a first densified layer adjacent said first outer layer, (2) a first loosely compacted layer adjacent to said first densified layer, (3) a second loosely compacted layer adjacent to said first loosely compacted layer, (4) a second densified layer adjacent to said second loosely compacted layer, (5) a third loosely compacted layer adjacent to said second densified layer, and (6) a third outwardly facing densified layer, said inwardly folded flap sections thereby defining said generally I-shaped configuration and providing increased liquid holding capacity in the central portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 3
Dependent Claim
21 words
A disposable diaper as set forth in claim 1 wherein said medial section and flap sections are substantially equal in size.
Claim 4
Dependent Claim
44 words
A disposable diaper as set forth in claim 2 wherein said flap sections are defined by spaced lines of cutting extending inwardly from the longitudinal side edges of the batt, said lines of cutting each extending about one third the width of said batt.
Claim 5
Dependent Claim
29 words
A disposable diaper as set forth in claim 3 wherein the liner of cutting are perpendicular to the longitudinal side edges of the batt and parallel with one another.
Claim 6
Dependent Claim
21 words
A disposable diaper as set forth in claim 1 wherein said densified layer includes longitudinally extending lines of greater thickness dimension.
Claim 7
Dependent Claim
186 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said batt having a generally I-shaped configuration and formed from an initially generally rectangular member having end portions and a central portion, said central portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded inwardly over said medial section to position the densified layer on each flap section above the loosely compacted portion of said medial section to thereby define said generally I-shaped configuration and to provide an upwardly facing wicking layer and increased liquid holding capacity in the central portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 8
Dependent Claim
186 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said batt having a generally I-shaped configuration and formed from an initially generally rectangular member having end portions and a central portion, said central portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded inwardly over said medial section to position the densified layer on each flap section above the loosely compacted portion of said medial section to thereby define said generally I-shaped configuration and to provide an upwardly facing wicking layer and increased liquid holding capacity in the central portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 9
Dependent Claim
117 words
A disposable diaper as set forth in claim 6 in which said flap sections are folded into overlapping relationship with one another whereby the central portion of said batt includes (1) a first densified layer adjacent said first outer layer, (2) a first loosely compacted layer adjacent to said first densified layer, (3) a second loosely compacted layer adjacent to said first loosely compacted layer, (4) a second densified layer adjacent to said second loosely compacted layer, (5) a third loosely compacted layer adjacent to said second densified layer, and (6) a third outwardly facing densified layer; and wherein said first and second outer layers have reduced width midportions aligned with the central portion of said batt.
Claim 10
Dependent Claim
21 words
A disposable diaper as set forth in claim 7 wherein said medial section and flap sections are substantially equal in size.
Claim 11
Dependent Claim
44 words
A disposable diaper as set forth in claim 8 wherein said flap sections are defined by spaced lines of cutting extending inwardly from the longitudinal side edges of the batt, said lines of cutting each extending about one third the width of said batt.
Claim 12
Dependent Claim
29 words
A disposable diaper as set forth in claim 9 wherein the lines of cutting are perpendicular to the longitudinal side edges of the batt and parallel with one another.
Claim 13
Dependent Claim
25 words
A disposable diaper as set forth in claim 6 wherein said densified layer includes longitudinally extending lines of greater thickness dimension than said densified layer.
Claim 14
Dependent Claim
147 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; an absorbent batt positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said absorbent batt having a generally I-shaped configuration and formed from an initially generally rectangular member having end portions and a central portion, said central portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded inwardly into overlapping relationshp with one another to thereby define said generally I-shaped configuration and to provide increased liquid holding capacity in the central portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 15
Dependent Claim
147 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; an absorbent batt positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said absorbent batt having a generally I-shaped configuration and formed from an initially generally rectangular member having end portions and a central portion, said central portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded inwardly into overlapping relationshp with one another to thereby define said generally I-shaped configuration and to provide increased liquid holding capacity in the central portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 16
Dependent Claim
21 words
A disposable diaper as set forth in claim 12 wherein said medial section and flap sections are substantially equal in size.
Claim 17
Dependent Claim
44 words
A disposable diaper as set forth in claim 13 wherein said flap sections are defined by spaced lines of cutting extending inwardly from the longitudinal side edges of the batt, said lines of cutting each extending about one third the width of said batt.
Claim 18
Dependent Claim
29 words
A disposable diaper as set forth in claim 14 wherein the lines of cutting are perpendicular to the longitudinal side edges of the batt and parallel with one another.
Claim 19
Dependent Claim
28 words
A disposable diaper as set forth in claim 12 wherein said first and second outer layers have reduced width midportions aligned with the central portion of said batt.
Claim 20
Dependent Claim
137 words
17 . A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; an absorbent batt positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said absorbent batt being formed from an initially generally rectangular member having an end portion and a body portion, said body portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded inwardly into overlapping relationship with one another to provide increased liquid holding capacity in the body portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 21
Dependent Claim
137 words
17 . A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; an absorbent batt positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said absorbent batt being formed from an initially generally rectangular member having an end portion and a body portion, said body portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded inwardly into overlapping relationship with one another to provide increased liquid holding capacity in the body portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 22
Dependent Claim
174 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said batt being formed from an initially generally rectangular member having an end portion and a body portion, said body portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded inwardly over said medial section to position the densified layer on each flap section above the loosely compacted portion of said medial section to provide an upwardly facing wicking layer and increased liquid holding capacity in the body portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 23
Dependent Claim
174 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet; a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said batt being formed from an initially generally rectangular member having an end portion and a body portion, said body portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded inwardly over said medial section to position the densified layer on each flap section above the loosely compacted portion of said medial section to provide an upwardly facing wicking layer and increased liquid holding capacity in the body portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 24
Dependent Claim
230 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said batt being formed from an initially generally rectangular member having an end portion and a body portion, said body portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded into overlapping relationship with one another whereby the body portion of said batt includes (1) a first densified layer adjacent said first outer layer, (2) a first loosely compacted layer adjacent to said first densified layer, (3) a second loosely compacted layer adjacent to said first loosely compacted layer, (4) a second densified layer adjacent to said second loosely compacted layer, (5) a third loosely compacted layer adjacent to said second densified layer, and (6) a third outwardly facing densified layer, said inwardly folded flap sections providing increased liquid holding capacity in the body portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 25
Dependent Claim
230 words
A disposable diaper comprising: a first outer layer in the form of a moisture-impervious backing sheet a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer positioned in superposed relationship with respect to the backing sheet, the batt being smaller than the backing sheet and spaced inwardly from the longitudinal sides thereof, said batt being formed from an initially generally rectangular member having an end portion and a body portion, said body portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded into overlapping relationship with one another whereby the body portion of said batt includes (1) a first densified layer adjacent said first outer layer, (2) a first loosely compacted layer adjacent to said first densified layer, (3) a second loosely compacted layer adjacent to said first loosely compacted layer, (4) a second densified layer adjacent to said second loosely compacted layer, (5) a third loosely compacted layer adjacent to said second densified layer, and (6) a third outwardly facing densified layer, said inwardly folded flap sections providing increased liquid holding capacity in the body portion of said absorbent batt; and a second outer layer in the form of a moisture-pervious facing sheet positioned in superposed relationship with respect to the batt on the side opposite the backing sheet.
Claim 26
Dependent Claim
176 words
An absorbent unit for use in an absorbent article comprising: a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer, said batt being formed from an initially generally rectangular member having an end portion and a body portion, said body portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded into overlapping relationship with one another, whereby the body portion of said batt includes (1) a first densified layer at one side thereof, (2) a first loosely compacted layer adjacent to said first densified layer, (3) a second loosely compacted layer adjacent to said first loosely compacted layer, (4) a second densified layer adjacent to said second loosely compacted layer, (5) a third loosely compacted layer adjacent to said second densified layer, and (6) a third densified layer at the side of said batt opposite said one side, said inwardly folded flap sections providing increased liquid holding capacity in the body portion of said absorbent batt.
Claim 27
Dependent Claim
176 words
An absorbent unit for use in an absorbent article comprising: a highly porous, loosely compacted, cellulosic fibrous batt, said batt having formed integrally therewith a paper-like, densified compacted cellulosic fibrous layer, said batt being formed from an initially generally rectangular member having an end portion and a body portion, said body portion including a medial section flanked by a flap section at each side thereof, said flap sections being folded into overlapping relationship with one another, whereby the body portion of said batt includes (1) a first densified layer at one side thereof, (2) a first loosely compacted layer adjacent to said first densified layer, (3) a second loosely compacted layer adjacent to said first loosely compacted layer, (4) a second densified layer adjacent to said second loosely compacted layer, (5) a third loosely compacted layer adjacent to said second densified layer, and (6) a third densified layer at the side of said batt opposite said one side, said inwardly folded flap sections providing increased liquid holding capacity in the body portion of said absorbent batt.
Claim 28
Dependent Claim
27 words
An absorbent unit as set forth in claim 20 wherein said batt is generally I-shaped and includes widened end portions at opposite ends of said body portion.
Claim 29
Dependent Claim
37 words
An absorbent unit as set forth in claim 20 wherein a densified wicking section is disposed between said first and second densified layers, and another densified wicking section is disposed between said first and third densified layers.
Claim 30
Dependent Claim
20 words
An absorbent unit as set forth in claim 22 wherein said densified layers and sections are continuous with one another.
References Cited (Backward Citations)
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