CA1149101A - Disposable diaper with improved top sheet - Google Patents
Disposable diaper with improved top sheetInfo
- Publication number
- CA1149101A CA1149101A CA000329329A CA329329A CA1149101A CA 1149101 A CA1149101 A CA 1149101A CA 000329329 A CA000329329 A CA 000329329A CA 329329 A CA329329 A CA 329329A CA 1149101 A CA1149101 A CA 1149101A
- Authority
- CA
- Canada
- Prior art keywords
- top sheet
- surfactant
- fluid
- printed
- wetback
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
- A61F13/51305—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability having areas of different permeability
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51113—Topsheet, i.e. the permeable cover or layer facing the skin comprising an additive, e.g. lotion or odour control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
- A61F2013/51059—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers being sprayed with chemicals
- A61F2013/51061—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers being sprayed with chemicals for rendering the surface hydrophobic
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A disposable product, such as a diaper, sanitary napkin or under-pad, provided with a water impervious lower layer, an absorbent pad and a top sheet. The top sheet contains 0.1 to 0.6% by weight of a surfactant.
The surfactant may be applied by spraying, dipping roller coating, etc., on the entire surface or preferably in limited areas such as in the central areas of the top sheet or may be line or spot printed thereon to improve fluid pen-etration, while retaining optimum fluid wetback and fluid retention charac-teristics. The top sheet is a hydrophobic sheet of excellent fluid penetra-tion but resists fluid wetback.
A disposable product, such as a diaper, sanitary napkin or under-pad, provided with a water impervious lower layer, an absorbent pad and a top sheet. The top sheet contains 0.1 to 0.6% by weight of a surfactant.
The surfactant may be applied by spraying, dipping roller coating, etc., on the entire surface or preferably in limited areas such as in the central areas of the top sheet or may be line or spot printed thereon to improve fluid pen-etration, while retaining optimum fluid wetback and fluid retention charac-teristics. The top sheet is a hydrophobic sheet of excellent fluid penetra-tion but resists fluid wetback.
Description
BACKGROUND OF THE INVENTION
. . _ .
FIELD 0~ INVENTION
This invention relates to disposable products, such as diapers, sanitary napkins and underpads, and more particularly to the top sheet construction thereof.
DESCRIPTION OF THE PRIOR ART
In the past, disposable products and particularly diapers, sanitary napkins and ~mderpads, have been constructed with top sheets of hydrophobic material. This material has rather low fluid retention and fluid wetback characteristics and improvements in fluid penetration are desirable especially to prevent leaking when there are rapid gushes of fluid material, such as urine, menstral fluid and the like. The hydrophobic sheets have in the past been made of non-woven polyamide, polypropylene, polyester fibers or mixtures of these and these hydrophobic top sheets have needed improvement in fluid penetra-tion. To this end, United States Patent No. 3,81~,101 shows the use of a hydrophobic top she~t which is provided with a series of slits therein which slits serve as valves. This - 20 hydrophobic top sheet is of a film-like material.
Hydrophobic non-woven materials have been used in diaper construction, such as shown in United States Patent No. 3,987,786 which employs the use of a surfactant in partic-~lar areas on treated materials.
:~
. . _ .
FIELD 0~ INVENTION
This invention relates to disposable products, such as diapers, sanitary napkins and underpads, and more particularly to the top sheet construction thereof.
DESCRIPTION OF THE PRIOR ART
In the past, disposable products and particularly diapers, sanitary napkins and ~mderpads, have been constructed with top sheets of hydrophobic material. This material has rather low fluid retention and fluid wetback characteristics and improvements in fluid penetration are desirable especially to prevent leaking when there are rapid gushes of fluid material, such as urine, menstral fluid and the like. The hydrophobic sheets have in the past been made of non-woven polyamide, polypropylene, polyester fibers or mixtures of these and these hydrophobic top sheets have needed improvement in fluid penetra-tion. To this end, United States Patent No. 3,81~,101 shows the use of a hydrophobic top she~t which is provided with a series of slits therein which slits serve as valves. This - 20 hydrophobic top sheet is of a film-like material.
Hydrophobic non-woven materials have been used in diaper construction, such as shown in United States Patent No. 3,987,786 which employs the use of a surfactant in partic-~lar areas on treated materials.
:~
- 2 -9~
According to the invention, a disposable product includes an air permeable hydrophobic top sheet, wherein said top sheet of hydrophobic ma-terial contains a major amount of non-woven hydrophobic fibe-rs and from 0.1 to 0.6% by weight of a surfactant applied to the top surface of said top sheet to facilitate fluid passage therethrough but minimize wetback, said topsheet having a maximum wetback factor of 10, and a penetration factor of at least about 80.
Preferably the disposable product construction includes a top sheet of hydrophobic non-woven material, based on polyamide, polypropylene or poly-ester material, which overlies the absor~ent pad which in turn is underlined by a water impervious film material. The top sheet is suitably treated with a surfactant preferably non-ionic to provide for more rapid fluid penetration while retaining optimum wetback and fluid retention characteristics. To this end, preferably only spaced areas of the top sheet are coated such as by spraying the central area or line printing, spot printing in discrete areas of the top sheet.
In the drawings, Figure 1 is a perspective view of a diaper constructed in accordance with the concepts of the present invention with parts thereof broken away illustrating details of construction;
Figure 2 is a vertical sectional detail view looking along the plane of line 2-2 in Figure l;
Figure 3 is a schematic elevational view of a diaper;
Figure 4a is a partial plan view illustrating a disposable diaper having line printed surfactant on the top sheet thereof;
Figure ~b is a partial plan view of a diaper which has surfactant printed in discrete spaced areas thereon; and, Figure 5 is a plan view of a preferred embodiment of the invention wherein the central portion of the top sheet is line printed in spaced dis-crete areas with surfactant.
-~g~
DETAILED DESCRIPTION OF T~E INVENTION
IVith continuing re~erence to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, reference numeral 10 generally designates a diaper which includes a bottom sheet 12 of water impervious plastic film material (which may be embossed or matte finished) having mounted thereon a pad 14 formed of an absorbent core J which may have one or more layers of wadding. The top sheet 16 is made of non-woven hydrophobic material, such as polypropylene, polyamide or polyes-ter fibers. The elements of the diaper 10 are assembled in conventional manner. The topsheet per se is conventional and may be spun-bonded, dry or wet-laid and may be chemically or thermaIly bonded.
In accordance with the concepts of the present invention, the top sheet is treated as at 1~ with 0.1 to 0.6%
by weight of a surfactan-t capable of altering the hydrophobic properties of the material on the top surface thereof. The surfactant is preferably a non-ionic and more preferably an ethoxylate of (1) an C12 to C20 alcohol ~e.g. 5-20 moles of E.O.)*, ~2) a C6 to C10 alkyl phenol (e.g. 5-30 moles of E.O.). A prefer-red nonionic is "Triton X-100" ~a 10 E.O. condensate with octyl phenol), of the top sheet 16 and, as shown in Figure 3, may be sprayed or surface printed as at 20 in only the central areas of the top sheet 16. Conventional dip and roller coating may be used as well.
As shown in Figure 4a, the surfactant may be line printed as at 22. Alternatively, the surfactant may be spot printed as at 24 in Figure 4b in discrete areas at spaced intervals.
* E.O. is ethylene oxide .
~9~
In a preferred embodiment, as shown in Figure 5, the surfactant is line printed at 26 in spaced intervals on each line with the areas being printed in each line being staggered. Only the central portion of the top sheet is shown provided with the printed coating or surfactant. If desired, the en-tire surface may be so treated.
A particularly preferred line treatment is one wherein the lines 2Z, instead of ~eing parallel to the sides of the diaper, are arranged diag-onally (e.g. at an angle of from 30 to 60 with diaper edge). In a further desirable embodiment the lines shown in Figure 4A are rotated 90.
In operation, fluid penetration is enhanced by the surfactant treated areas of the non-woven hydrophobic material to permit more rapid fluid penetration. However, little change of the desirable fluid wetback and fluid retention characteristics are evident. In the preferred top-sur-face treatment, the surfactant does not penetrate fully through the material, but only serves to initially guide the fluid material to penetrate the non-woven hydrophobic material, and this further limits wetback.
The treated topsheets of the present invention have a penetration factor of at least 80 and a wetback factor no greater than 10. These factors represent the percent of fluid which passes through the sheet in the test pe-riod time and the percent which "wetsback" in the prescribed test. In thetest procedures 30 c.c. of fluid are used. If all passes through the sheet with no "roll of~' the penetration factor is 100. If half rolls off then the factor is 50. Similarly if 15 c.c. of fluid are wet back in the described procedure the factor is 50. Obviously, the higher the penetration factor and the lower the wetback factor the more desirable is the product: -
According to the invention, a disposable product includes an air permeable hydrophobic top sheet, wherein said top sheet of hydrophobic ma-terial contains a major amount of non-woven hydrophobic fibe-rs and from 0.1 to 0.6% by weight of a surfactant applied to the top surface of said top sheet to facilitate fluid passage therethrough but minimize wetback, said topsheet having a maximum wetback factor of 10, and a penetration factor of at least about 80.
Preferably the disposable product construction includes a top sheet of hydrophobic non-woven material, based on polyamide, polypropylene or poly-ester material, which overlies the absor~ent pad which in turn is underlined by a water impervious film material. The top sheet is suitably treated with a surfactant preferably non-ionic to provide for more rapid fluid penetration while retaining optimum wetback and fluid retention characteristics. To this end, preferably only spaced areas of the top sheet are coated such as by spraying the central area or line printing, spot printing in discrete areas of the top sheet.
In the drawings, Figure 1 is a perspective view of a diaper constructed in accordance with the concepts of the present invention with parts thereof broken away illustrating details of construction;
Figure 2 is a vertical sectional detail view looking along the plane of line 2-2 in Figure l;
Figure 3 is a schematic elevational view of a diaper;
Figure 4a is a partial plan view illustrating a disposable diaper having line printed surfactant on the top sheet thereof;
Figure ~b is a partial plan view of a diaper which has surfactant printed in discrete spaced areas thereon; and, Figure 5 is a plan view of a preferred embodiment of the invention wherein the central portion of the top sheet is line printed in spaced dis-crete areas with surfactant.
-~g~
DETAILED DESCRIPTION OF T~E INVENTION
IVith continuing re~erence to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, reference numeral 10 generally designates a diaper which includes a bottom sheet 12 of water impervious plastic film material (which may be embossed or matte finished) having mounted thereon a pad 14 formed of an absorbent core J which may have one or more layers of wadding. The top sheet 16 is made of non-woven hydrophobic material, such as polypropylene, polyamide or polyes-ter fibers. The elements of the diaper 10 are assembled in conventional manner. The topsheet per se is conventional and may be spun-bonded, dry or wet-laid and may be chemically or thermaIly bonded.
In accordance with the concepts of the present invention, the top sheet is treated as at 1~ with 0.1 to 0.6%
by weight of a surfactan-t capable of altering the hydrophobic properties of the material on the top surface thereof. The surfactant is preferably a non-ionic and more preferably an ethoxylate of (1) an C12 to C20 alcohol ~e.g. 5-20 moles of E.O.)*, ~2) a C6 to C10 alkyl phenol (e.g. 5-30 moles of E.O.). A prefer-red nonionic is "Triton X-100" ~a 10 E.O. condensate with octyl phenol), of the top sheet 16 and, as shown in Figure 3, may be sprayed or surface printed as at 20 in only the central areas of the top sheet 16. Conventional dip and roller coating may be used as well.
As shown in Figure 4a, the surfactant may be line printed as at 22. Alternatively, the surfactant may be spot printed as at 24 in Figure 4b in discrete areas at spaced intervals.
* E.O. is ethylene oxide .
~9~
In a preferred embodiment, as shown in Figure 5, the surfactant is line printed at 26 in spaced intervals on each line with the areas being printed in each line being staggered. Only the central portion of the top sheet is shown provided with the printed coating or surfactant. If desired, the en-tire surface may be so treated.
A particularly preferred line treatment is one wherein the lines 2Z, instead of ~eing parallel to the sides of the diaper, are arranged diag-onally (e.g. at an angle of from 30 to 60 with diaper edge). In a further desirable embodiment the lines shown in Figure 4A are rotated 90.
In operation, fluid penetration is enhanced by the surfactant treated areas of the non-woven hydrophobic material to permit more rapid fluid penetration. However, little change of the desirable fluid wetback and fluid retention characteristics are evident. In the preferred top-sur-face treatment, the surfactant does not penetrate fully through the material, but only serves to initially guide the fluid material to penetrate the non-woven hydrophobic material, and this further limits wetback.
The treated topsheets of the present invention have a penetration factor of at least 80 and a wetback factor no greater than 10. These factors represent the percent of fluid which passes through the sheet in the test pe-riod time and the percent which "wetsback" in the prescribed test. In thetest procedures 30 c.c. of fluid are used. If all passes through the sheet with no "roll of~' the penetration factor is 100. If half rolls off then the factor is 50. Similarly if 15 c.c. of fluid are wet back in the described procedure the factor is 50. Obviously, the higher the penetration factor and the lower the wetback factor the more desirable is the product: -
Claims (8)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A disposable product including an air permeable hydrophobic top sheet, wherein said top sheet of hydrophobic material contains a major amount of non-woven hydrophobic fibers and from 0.1 to 0.6% by weight of a surfac-tant applied to the top surface of said top sheet to facilitate fluid passage therethrough but minimize wetback, said top sheet having a maximum wetback factor of 10, and a penetration factor of at least about 80.
2. A disposable product according to claim 1, wherein said surfactant is applied only to the central areas of said top sheet.
3. A disposable product according to claim 1, wherein said surfactant is printed on spaced areas of said top sheet.
4. A disposable product according to claim 3, wherein said surfactant is line printed on said top sheet.
5. A disposable product according to claim 3, wherein said surfactant is printed in spots on said top sheet.
6. A disposable diaper according to claim 1, wherein said surfactant is printed in spaced discrete areas on said top sheet.
7. A disposable diaper according to claim 6, wherein said discrete areas are arranged in spaced lines of spots.
8. A disposable diaper according to claim 1 or 4 wherein the surfactant is nonionic.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US91371478A | 1978-06-08 | 1978-06-08 | |
| US913,714 | 1986-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1149101A true CA1149101A (en) | 1983-07-05 |
Family
ID=25433516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000329329A Expired CA1149101A (en) | 1978-06-08 | 1979-06-08 | Disposable diaper with improved top sheet |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS54163136A (en) |
| AU (1) | AU526126B2 (en) |
| BE (1) | BE876865A (en) |
| BR (1) | BR7903572A (en) |
| CA (1) | CA1149101A (en) |
| CH (1) | CH637290A5 (en) |
| DE (1) | DE2922992A1 (en) |
| DK (1) | DK160074C (en) |
| ES (1) | ES251519U (en) |
| FR (1) | FR2427798A1 (en) |
| GB (1) | GB2023069B (en) |
| GR (1) | GR70351B (en) |
| IE (1) | IE48512B1 (en) |
| IT (1) | IT1116581B (en) |
| MX (1) | MX152645A (en) |
| NL (1) | NL7904540A (en) |
| PH (1) | PH15542A (en) |
| PT (1) | PT69744A (en) |
| ZA (1) | ZA792757B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509915A (en) | 1991-09-11 | 1996-04-23 | Kimberly-Clark Corporation | Thin absorbent article having rapid uptake of liquid |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55163044A (en) * | 1979-06-04 | 1980-12-18 | Kuraray Co | Preparation of sanitary article |
| FR2522521B1 (en) * | 1982-03-02 | 1987-04-17 | Beghin Say Sa | SINGLE USE ARTICLE FOR ABSORBING LIQUIDS |
| US4429001A (en) * | 1982-03-04 | 1984-01-31 | Minnesota Mining And Manufacturing Company | Sheet product containing sorbent particulate material |
| JPS614740A (en) * | 1984-06-15 | 1986-01-10 | エシル コ−ポレ−シヨン | Treatment of porous film |
| JP2590058B2 (en) * | 1985-07-19 | 1997-03-12 | 花王株式会社 | Absorbent articles |
| JPS6293307U (en) * | 1985-12-04 | 1987-06-15 | ||
| JPH0412974Y2 (en) * | 1986-04-15 | 1992-03-27 | ||
| US4735843A (en) * | 1986-12-18 | 1988-04-05 | The Procter & Gamble Company | Selectively surface-hydrophilic porous or perforated sheets |
| US5009651A (en) * | 1988-09-06 | 1991-04-23 | Kao Corporation | Surface material for sanitary articles and its preparing method |
| JPH0620501Y2 (en) * | 1990-03-06 | 1994-06-01 | 株式会社クラレ | Surface material for sanitary materials |
| EP0747029A1 (en) * | 1995-06-09 | 1996-12-11 | The Procter & Gamble Company | Absorbent article comprising barrier cuffs and an anti-wicking topsheet region located inboard from the barrier cuffs |
| US20020019617A1 (en) * | 1999-06-10 | 2002-02-14 | Charles Edward Bolian | Leakage protection means in a material for distributing fluid |
| DE10144713B4 (en) * | 2001-09-11 | 2004-05-13 | Sandler Ag | Permanent hydrophilic liquid transport layer |
| EP1570824B1 (en) * | 2002-12-10 | 2009-08-12 | Japan Absorbent Technology Institute | Absorber product with nonpermeable surface sheet |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814101A (en) * | 1970-09-17 | 1974-06-04 | Union Carbide Corp | Disposable absorbent articles |
| JPS457309Y1 (en) * | 1966-11-10 | 1970-04-09 | ||
| US3730184A (en) * | 1971-10-07 | 1973-05-01 | Johnson & Johnson | Disposable diaper |
| US3848598A (en) * | 1973-07-09 | 1974-11-19 | Johnson & Johnson | Disposable diaper with double contoured panel |
| US3987786A (en) * | 1974-02-25 | 1976-10-26 | John Harold Keyes | Method and apparatus for collecting, storing and transmitting solar heat |
| JPS5119956U (en) * | 1974-07-30 | 1976-02-13 | ||
| US3903890A (en) * | 1974-08-20 | 1975-09-09 | Johnson & Johnson | Disposable diaper of simple construction |
| US4059114A (en) * | 1976-05-12 | 1977-11-22 | Minnesota Mining And Manufacturing Company | Garment shield |
-
1979
- 1979-06-02 DE DE19792922992 patent/DE2922992A1/en active Granted
- 1979-06-04 ZA ZA792757A patent/ZA792757B/en unknown
- 1979-06-05 MX MX177946A patent/MX152645A/en unknown
- 1979-06-06 FR FR7914411A patent/FR2427798A1/en active Granted
- 1979-06-06 GR GR59287A patent/GR70351B/el unknown
- 1979-06-06 BR BR7903572A patent/BR7903572A/en unknown
- 1979-06-07 IT IT49336/79A patent/IT1116581B/en active
- 1979-06-07 GB GB7919872A patent/GB2023069B/en not_active Expired
- 1979-06-07 AU AU47848/79A patent/AU526126B2/en not_active Ceased
- 1979-06-07 ES ES1979251519U patent/ES251519U/en active Pending
- 1979-06-07 DK DK236679A patent/DK160074C/en not_active IP Right Cessation
- 1979-06-07 PT PT69744A patent/PT69744A/en unknown
- 1979-06-08 BE BE0/195646A patent/BE876865A/en not_active IP Right Cessation
- 1979-06-08 CH CH539979A patent/CH637290A5/en not_active IP Right Cessation
- 1979-06-08 JP JP7213179A patent/JPS54163136A/en active Pending
- 1979-06-08 CA CA000329329A patent/CA1149101A/en not_active Expired
- 1979-06-08 NL NL7904540A patent/NL7904540A/en not_active Application Discontinuation
- 1979-06-08 PH PH22630A patent/PH15542A/en unknown
- 1979-08-08 IE IE1121/79A patent/IE48512B1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509915A (en) | 1991-09-11 | 1996-04-23 | Kimberly-Clark Corporation | Thin absorbent article having rapid uptake of liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| GR70351B (en) | 1982-09-24 |
| DK236679A (en) | 1979-12-09 |
| IT1116581B (en) | 1986-02-10 |
| DE2922992A1 (en) | 1979-12-20 |
| AU4784879A (en) | 1979-12-13 |
| ES251519U (en) | 1980-10-01 |
| MX152645A (en) | 1985-10-04 |
| ZA792757B (en) | 1981-01-28 |
| BE876865A (en) | 1979-10-01 |
| IE791121L (en) | 1979-12-08 |
| PH15542A (en) | 1983-02-09 |
| PT69744A (en) | 1979-07-01 |
| NL7904540A (en) | 1979-12-11 |
| FR2427798A1 (en) | 1980-01-04 |
| GB2023069A (en) | 1979-12-28 |
| DK160074B (en) | 1991-01-28 |
| GB2023069B (en) | 1982-06-23 |
| AU526126B2 (en) | 1982-12-16 |
| CH637290A5 (en) | 1983-07-29 |
| DK160074C (en) | 1991-06-10 |
| FR2427798B1 (en) | 1984-12-28 |
| IE48512B1 (en) | 1985-02-20 |
| JPS54163136A (en) | 1979-12-25 |
| IT7949336A0 (en) | 1979-06-07 |
| BR7903572A (en) | 1980-01-22 |
| DE2922992C2 (en) | 1990-05-31 |
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