US2905176A - Diapers - Google Patents

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Publication number
US2905176A
US2905176A US56276056A US2905176A US 2905176 A US2905176 A US 2905176A US 56276056 A US56276056 A US 56276056A US 2905176 A US2905176 A US 2905176A
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US
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Grant
Patent type
Prior art keywords
fabric
diaper
body
diapers
layer
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 - Lifetime
Application number
Inventor
Harold F Davidson
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Alamac Knitting Mills Inc
Original Assignee
Alamac Knitting Mills Inc
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Publication date
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51Absorbent 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
    • A61F13/511Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51121Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51Absorbent 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
    • A61F13/511Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/513Topsheet, 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
    • A61F13/51305Topsheet, 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/534Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53704Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having an inhibiting function on liquid propagation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51Absorbent 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
    • A61F13/511Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51121Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material
    • A61F2013/51139Topsheet, i.e. the permeable cover or layer facing the skin characterised by the material being woven or knitted fabrics

Description

Sept. 22, 1959 DAVIDSQN 2,905,176

DIAPERS Filed Feb. 1, 1956 Tag. 1

INVENTOR.

HAROLD F. DAVIDSON BY HM MW ATTORNEYS United States Patent DIAPERS Harold F. Davidson, Falls Church, Va., assignor to Alamac Knitting Mills, Inc., New York, N.Y.

Application February 1, 1956, Serial No. 562,760

2 Claims. (Cl. 128-4284) This invention relates to diapers. More particularly, it is directed to improvementes in diapers so that when exposed to moisture they can dry very quickly in contact with the skin.

Accordingly, it is among the principal objects of this invention to provide a diaper so constructed that the side thereof in contact with the body not only does not absorb moisture, but also allows the water to pass therethrough so that it is absorbed by a fabric forming the outer side of the diaper.

The foregoing principal objects may be attained by providing a diaper constructed from two layers of different fabrics, suitably joined at the edges thereof, each of the fabrics having the opposite characteristics broadly mentioned above.

More particularly, the objects and advantages of this invention are achieved by providing a diaper formed of a body-contacting member and a backing member wherein the body-contacting member is an open, porous mesh fabric made from yarns of requisite softness and hand so that little moisture remains on the surface of the interstices. It is characterized by the feature that the fabric allows the moisture readily to pass therethrough in one direction but does not permit it to migrate back, whereby the body contacting side thereof is insulated from the moisture laden backing member. The fabric selected for the body-contacting member should pass a maximum of moisture through to the backing member and retain a minimum of the moisture in the interstices. The yarn from which the body-contacting member is made should be of essentially hydrophobic character. Suitable for such purposes are nylon, Dacron, coated cotton, Orlon, cellulose acetate, etc. These fibers are therefore natural or synthetic which provide the requisite extent of hydrophobic characteristics. The backing member, on the contrary, should be markedly water-absorptive or hydrophilic. Such characteristics are provided, for example, by suitable cotton fabrics such as are customarily used for diapers.

The aforesaid objects and advantages, as well as further objects and advantages, will become more ap parent from the following description of the invention taken in connection with the accompanying drawing wherein:

Fig. 1 is a perspective view of a diaper made in accordance with this invention; and

Fig. 2 is a fragmentary cross-section of a diaper section of Fig. 1 taken on the lines 2--2 thereof.

In the figures, the numeral 10 designates the diaper. Fabrics 12 and 14, respectively, are the body-contacting member and backing member, that are joined as by stitching 16 or other suitable means. Fabric 12 is suitably a piece of knitted nylon made from 36 two-ply spun nylon yarn. The knitting is done on a Wildman latch needle rib machine, the diameter of the machine being 18 inches. The machine is provided with 12 needles to the inch and the fabric is knitted 26 stitches per inch. To insure evenness of the fabric and uniformity of the stitch, a Kibbe tensiometer is installed on each side of the machine. The tensiometer automatically compensates for any tension in the cone of the yarn thereby assuring a proper knitting. For further assurance of uniformity of knitting, it is advisable to carry out the operation in a conditioned room at 65 percent relative humidity and at a temperature of F. The conditioning prevents static charges from accumulating on the fiber thereby eliminating friction thereof against the needles of the machine and thus eliminating possibilities of unevenness in the knitting.

After the knitting operation, the fabric is processed by passing it over a spreader set at 21 inches. The spreader employs a self-contained conveyor belt to overfeed the fabric thereby eliminating any tension lengthwise thereof. During this operation, while passing over the spreader, the fabric is subjected to high pressure steam under high velocity so as to effectuate complete relaxation of the fabric; elimination of any further residual shrinkage; and to change the construction of the fabric to that of one produced by a knitting of 20 needles per inch and 34 stitches per inch in the finished fabric. The processed fabric is thus characterized by washability, high elasticity and quick drying.

The backing member 14 is a piece of cotton cloth customarily used for diapers. It may be formed of any suitable highly absorbent material.

It will thus be seen that the diaper of this invention is a two-ply structure. The layer constituting the bodycontacting member is of essentially mesh-like construction that affords porosity requisite to insure passage therethrough of water. Maximum transmission of the water with a minimum retention thereof in the interstices is provided by fabrics of varying mesh counts that afford requisite porosity which may readily be ascertained by simple testing. The backing member should be a material or fabric that absorbs and retains the water that passes through the body-contacting member.

It will be understood that the foregoing description of the invention and the embodiment set forth is merely illustrative of the principles thereof. In accordance thereto, the appended claims are to be construed as defining the invention within the full spirit and scope thereof.

I claim:

1. A diaper comprising, in combination, a first bodycontacting knitted mesh layer of hydrophobic material, a second backing layer of hydrophilic material at one side of said hydrophobic material, the thickness of said mesh layer being uniformly equal to the thickness of said backing layer, both of said layers being of substantially the same size and shape and coextensive with each other, and means securing the peripheral edge of said first layer to said second layer, said knitted hydrophobic material facilitating the passage of liquid therethrough from one outer side to the opposite inner side thereof into association with said hydrophilic material, said hydrophobic material isolating moisture suspended in said layer of hydrophilic material from said outer side of said hydrophobic material, whereby the body contacting outer side of said hydrophobic material may be insulated from a moisture laden second layer of hydrophilic material.

2. A diaper as set forth in claim 1, wherein said first body-containing layer comprises nylon fabric knitted twenty needles per inch and thirty-four stitches per inch, and said second backing layer is constructed of woven cotton fabric.

References Cited in the file of this patent UNITED STATES PATENTS 2,468,445 Hurst Apr. 26, 1949 2,649,859 Hermanson Aug. 25, 1953 2,695,025 Andrews Nov. 23, 1954 2,718,888 Meroney Sept. 27, 1955

US2905176A 1956-02-01 1956-02-01 Diapers Expired - Lifetime US2905176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2905176A US2905176A (en) 1956-02-01 1956-02-01 Diapers

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Application Number Priority Date Filing Date Title
US2905176A US2905176A (en) 1956-02-01 1956-02-01 Diapers

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US2905176A true US2905176A (en) 1959-09-22

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029817A (en) * 1960-05-09 1962-04-17 Kimberly Clark Co Cellulosic product
US3063452A (en) * 1960-05-02 1962-11-13 Modella Mfg Company Inc Infant's garments
US3067747A (en) * 1959-09-04 1962-12-11 Kimberly Clark Co Cellulosic product
US3113570A (en) * 1963-01-18 1963-12-10 Riegel Textile Corp Diaper with hydrophobic yarns
US3122140A (en) * 1962-03-29 1964-02-25 Johnson & Johnson Flexible absorbent sheet
US3122142A (en) * 1963-05-27 1964-02-25 Johnson & Johnson Absorbent product
US3156242A (en) * 1962-03-29 1964-11-10 Johnson & Johnson Flexible absorbent sheet
US3169264A (en) * 1964-04-09 1965-02-16 Wayne L Walker Multi-purpose cleaning and washing cloth
US3180335A (en) * 1961-07-17 1965-04-27 Procter & Gamble Disposable diaper
US3216421A (en) * 1962-10-24 1965-11-09 L Ancienne Maison Devaud Kunst Swathing means for infants
US3237625A (en) * 1964-10-30 1966-03-01 Riegel Textile Corp Baby panty with hydrophobic lining
US3409012A (en) * 1964-01-10 1968-11-05 Riegel Textile Corp Diaper with interwoven hydrophobic yarns
US3459186A (en) * 1966-04-14 1969-08-05 Farah Mfg Co Inc Diaper construction
US4297156A (en) * 1978-02-24 1981-10-27 Dalle & Cie, S.A. Process for manufacture of wall coverings and wall coverings thus obtained
US4330580A (en) * 1978-02-24 1982-05-18 Dalle & Cie, S.A. Process for manufacture of wall coverings and wall coverings thus obtained
US5032119A (en) * 1990-03-14 1991-07-16 Hookano Robert W Reusable diaper
US5249320A (en) * 1991-11-12 1993-10-05 Moretz Herbert L Moisture-managing bed pad and bed sheet
US20050192549A1 (en) * 2004-03-01 2005-09-01 Paolo Veglio Pantiliner
DE202010003153U1 (en) 2010-03-04 2010-05-20 Neubauer, Norbert Incontinence pad

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468445A (en) * 1947-02-21 1949-04-26 Hurst Kenneth Absorbent pad diaper
US2649859A (en) * 1951-02-10 1953-08-25 William A Hermanson Disposable diaper
US2695025A (en) * 1950-04-08 1954-11-23 Int Latex Corp Diapering garment
US2718888A (en) * 1953-06-19 1955-09-27 Ajust A Dyper Company Inc Adjustable diaper

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468445A (en) * 1947-02-21 1949-04-26 Hurst Kenneth Absorbent pad diaper
US2695025A (en) * 1950-04-08 1954-11-23 Int Latex Corp Diapering garment
US2649859A (en) * 1951-02-10 1953-08-25 William A Hermanson Disposable diaper
US2718888A (en) * 1953-06-19 1955-09-27 Ajust A Dyper Company Inc Adjustable diaper

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067747A (en) * 1959-09-04 1962-12-11 Kimberly Clark Co Cellulosic product
US3063452A (en) * 1960-05-02 1962-11-13 Modella Mfg Company Inc Infant's garments
US3029817A (en) * 1960-05-09 1962-04-17 Kimberly Clark Co Cellulosic product
US3180335A (en) * 1961-07-17 1965-04-27 Procter & Gamble Disposable diaper
US3156242A (en) * 1962-03-29 1964-11-10 Johnson & Johnson Flexible absorbent sheet
US3122140A (en) * 1962-03-29 1964-02-25 Johnson & Johnson Flexible absorbent sheet
US3216421A (en) * 1962-10-24 1965-11-09 L Ancienne Maison Devaud Kunst Swathing means for infants
US3113570A (en) * 1963-01-18 1963-12-10 Riegel Textile Corp Diaper with hydrophobic yarns
US3122142A (en) * 1963-05-27 1964-02-25 Johnson & Johnson Absorbent product
US3409012A (en) * 1964-01-10 1968-11-05 Riegel Textile Corp Diaper with interwoven hydrophobic yarns
US3169264A (en) * 1964-04-09 1965-02-16 Wayne L Walker Multi-purpose cleaning and washing cloth
US3237625A (en) * 1964-10-30 1966-03-01 Riegel Textile Corp Baby panty with hydrophobic lining
US3459186A (en) * 1966-04-14 1969-08-05 Farah Mfg Co Inc Diaper construction
US4297156A (en) * 1978-02-24 1981-10-27 Dalle & Cie, S.A. Process for manufacture of wall coverings and wall coverings thus obtained
US4330580A (en) * 1978-02-24 1982-05-18 Dalle & Cie, S.A. Process for manufacture of wall coverings and wall coverings thus obtained
US5032119A (en) * 1990-03-14 1991-07-16 Hookano Robert W Reusable diaper
US5249320A (en) * 1991-11-12 1993-10-05 Moretz Herbert L Moisture-managing bed pad and bed sheet
US20050192549A1 (en) * 2004-03-01 2005-09-01 Paolo Veglio Pantiliner
US8314285B2 (en) * 2004-03-01 2012-11-20 The Procter And Gamble Company Pantiliner
DE202010003153U1 (en) 2010-03-04 2010-05-20 Neubauer, Norbert Incontinence pad

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