US3762415A - Anti-bacterial menses absorbing pads - Google Patents

Anti-bacterial menses absorbing pads Download PDF

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US3762415A
US3762415A US3762415DA US3762415A US 3762415 A US3762415 A US 3762415A US 3762415D A US3762415D A US 3762415DA US 3762415 A US3762415 A US 3762415A
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sheet
menses
plastic
bacteriostatic
bacterial
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W Morrison
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Maxine B Money
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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
    • A61F13/84Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405Additives, e.g. for odour, disinfectant or pH control
    • 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
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    • 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
    • A61F13/53708Absorbent 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 a promotional function on liquid propagation in at least one direction
    • A61F13/53713Absorbent 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 a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical direction
    • AHUMAN NECESSITIES
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    • 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
    • A61F13/53708Absorbent 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 a promotional function on liquid propagation in at least one direction
    • A61F13/53717Absorbent 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 a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the horizontal direction
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    • 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
    • A61F13/53743Absorbent 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 characterised by the position of the layer relative to the other layers
    • A61F13/53752Absorbent 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 characterised by the position of the layer relative to the other layers the layer is embedded in the absorbent core
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/20Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/46Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
    • 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
    • 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
    • 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
    • A61F2013/53445Absorbent 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 from several sheets
    • 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
    • A61F2013/53765Absorbent 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 characterized by its geometry
    • A61F2013/53782Absorbent 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 characterized by its geometry with holes
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    • A61L2300/00Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/20Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
    • A61L2300/202Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials with halogen atoms, e.g. triclosan, povidone-iodine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61L2300/00Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/404Biocides, antimicrobial agents, antiseptic agents

Abstract

This invention relates to improved menses absorbing pads wherein a quantity of anti-bacterial material is included in the pad to reduce odor and the possibility of infection.

Description

Unlted States Patent 1 1 11 1 1 3,762,415 Morrison 1 1 Oct. 2, 1973 [54] ANTI-BACTERIAL MENSES ABSORBING 1,950,957 3/1934 Wilhelm 128/290 PADS 2,066,946 1/1937 Reiman 128/290 2,919,200 12/1959 Dubin et a1. 106/15 [75] Inventor: W1llard L- Morrl 3,279,986 11/1966 Hyman v v 161 92 Winston-Salem, N.C. 3,287,222 11/1966 Larde et a1. 128/156 X 3,308,488 3/1967 Schoonman 1 v 1 128/296 [73] Ass1gnee: Maxine B. Money, Wmston-Salem, 3,340,875 9/1967 Dudley et aL l28/290 N.C. 3,490,454 l/1970 Goldfarb et a1 128/285 [22] Filed: Mar. 6, 1968 No Primary Examiner-Charles Rosenbaum AttorneyRichard C. Sughrue et a1.

[52] US. Cl. 128/290 [51] Int. Cl. ..A61f13/16 [57] ABSTRACT [58] Field of Search 128/287, 275, 290,

l28/296 156 106/15 61/92 Th1s mvent1on relates to lmproved menses absorbmg pads wherein a quantity of anti-bacterial material is in- [56] Reierences Cited cluded in the pad to reduce odor and the possibility of I UNITED STATES PATENTS H1932 Mathey 1. 128/290 6 Claims, 8 Drawing Figures PAIENIEIJUCI ems sum NF 2 FIG. 2

ATTORNEY PATENTEDUET 2 I915 SHEET 2 0F 2 FIG. 7

INVENTOR WILLARD L. MORRISON ATTORNEY ANTI-BACTERIAL MENSES ABSORBING PADS BACKGROUND OF THE INVENTION The prior art discloses catamenial bandages comprising a plurality of layers of soft, cottonlike, pliable, fibrous material between which is interposed a mass or layer of deodorizing or antiseptic granules or powder. A specific example of such type of bandage is disclosed in U.S. Pat. No. 1,950,957 to W. F. Wilhelm. However, sanitary napkins of this type have met with little commercial success due to several marked disadvantages. First of all, the Wilhelm patent uses chloramine in a powdered or other granulated form, and the layers of wadding must be fastened together in some suitable way so that the material placed between them cannot accidentally escape or spill. Also, a sanitary napkin treated in such a manner doesnotaid in evenly distributing the menses throughout the napkin. Moreover, the manufacturing processes for such a product are time consuming and difficult to perform.

As was stated in the disclosure in the United States Letters Patent No. 2,919,200 to Dubin et al, certain compounds including Actamer sold by Monsanto Chemical Company andhexachlorophene such as compound Gll manufactured by the Sindar Corporation of New York are compatible withpolyolefins or other plastics mentioned in the patent which may be used to make bactericidal and bacteriostatic (hereafter called anti-bacterial) plasticswhich effectively kill bacteria outright or inhibit their growth. Preferred materials are those requiringlittle or no plasticizers to attain flexibility. Other satisfactory anti-bacterial materials include, but are not limited to, Corobex RB sold by the Royce Chemical Compnay of Carlton Hill, New Jersey and bacteriostatic organotin compounds selected from the class of his (tri-n-alkyltin) sulfosalicylates as described in the United States Letters Patent No. 3,279,986 to Hyman. The use of such materials in sanitary napkins according to the invention impedes the growth of medically undesirable fungi, and will also prevent odor.

Therefore, the present invention isdirected to a sanitary napkin or tampon having one or more sheets of such an anti-bacterial plastic material inserted into the core or wadding thereof, or an anti-bacterial agent compounded with a plastic resin and otherwise used in combination with ordinary menses absorbing pads. The plastic sheets are perforated or otherwise treated so as to allow the menses to pass therethrough, however causing the menses to contact the perforated sheets thus killing or inhibiting the growth of the bacteria.

It is therefore an object of this invention to provide an improved sanitary napkin or other menses absorbing pad having associated therewith one or more plastic sheets which are treated with an anti-bacterial agent, said plastic sheets having surface characteristics for allowing the menses to pass through while distributing the menses evenly throughout the napkin.

It is also an object of the invention to provide an improved sanitary napkin or other menses absorbing pad having associated therewith, either in the wadding or in the cover, plastic fibers which include an anti-bacterial agent.

It is another object of the invention to provide a sanitary napkin or other bandage having the properties of retarding or destroying the growth of bacteria, and preventing odor.

Another object of the invention is to provide in combination with a sanitary napkin, anti-bacterial agents having a retarding and destructive effect upon the growth of bacteria.

Having set forth some of the objects of the invention, other objects and a fuller understanding of the invention may be had by referring to the claims and the following description in connection with the drawings wherein:

FIG. 1 is a perspective view with parts broken away of a sanitary napkin including the anti-bacterial sheets according to the invention;

FIG. 2 is an enlarged sectional view taken substantially along the line 2-2 in FIG. 1;

FIG. 3 is a perspective view of one of the antibacterial plastic sheets according to one embodiment of the invention;

FIG. .4 is a perspective view with parts broken away of one of the anti-bacterial sheets according to a second embodiment of the invention;

FIG. 4A is an enlarged perspective view showing a portion of the surface of the sheet shown in FIG. 4;

FIG. 5 is a perspective view of one of the antibacterial sheets according to a third embodimentof the invention;

FIG. 6 is an enlarged sectional view similar to FIG. 2, showing another embodiment of the invention;

FIG. 7 is an enlarged sectional view similar to FIG. 2, showing still another embodiment of the invention.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now more particularly to the drawings, FIG. 1 shows a sanitary napkin 10, including a relatively thick,- elongated absorbent core 12, comprising primarily a mass of cellulose fibers, enclosed with a liquid pervious wrapper 14 having ends 16 which extend beyond the extremities of the absorbent core, providing the usual attachment means for the napkins.

Within the absorbent core 12, according to one form of the invention, one or more perforate sheets 18 of anti-bacterial treated material, preferably plastic, are inserted into the core 12 and form alternating layers of anti-bacterial material and wadding. The outer layer of the core 12 furthest from the body comprises an imperforate sheet 19 of anti-bacterial treated material to prevent leakage and retain the menses within the napkin. To further prevent edge leakage, imperforate sheet 19 may also be large enough to fold up over the edges of the sides or ends of core 12 as shown in FIG. 2. Therefore, the core 12 will comprise an inner layer 20 of wadding, alternating layers of anti-bacterial treated, perforate, plastic sheets 18 and wadding 22, and an outer layer comprising an anti-bacterial treated, imperforate sheet 19. It is to be recognized that the number of layers 18 of anti-bacterial treated plastic may vary or even comprise a single sheet, and may be inserted either very near the inner surface of the core, or further away, the only limiting factor being that the antibacterial treatedsheets must be located near enough to the body contacting surface of core 12 to be effective in their bacteria inhibiting characteristics. During experimentation, a single imperforate plastic sheet having anti-bacterial qualities was positioned on the outer surface of the core 12 without any intermediate sheets such as sheet 18. It was discovered that the antibacterial effect of a sheet so positioned was too weak to effectively function as a bacteria retarding or destructive device, the reason being that the sheet was located too far away from the area where the menses entered the pad and the surface area available in the one sheet did not provide sufficient anti-bacterial agent to cope with the odor causing bacteria in the menses.

The anti-bacterial plastic sheet 18 is preferably made from a water-impervious film of polyolefin, or other plastics such as acrylic, acrylonitrile-butadene-styrene, ethylene vinyl acetate, and other plastics and copolymers, which have incorporated or dispersed therein any suitable anti-bacterial agent such as, without limitation, hexachlorophene or Actamer in the manner taught by US. Pat. No. 2,9l9,200; Corobex RB which includes as active ingredients about 0.l percent of 2 Ethylhexanol, about 16.0 percent Diisobutyl Phenoxyethoxy ethyldimethylbenxyl Ammonium chloride, and about 14.0 percent Alkyl (C to C Dimethylbenzyl Ammonium Chloride; or a bacteriostatic organotin compound selected from the class of his (tri-n-alkyltin) sulfosalicylates as taught by the Hyman US. Pat. No. 3,279,986. More particularly, the anti-bacterial agent is preferably premixed in concentrated form with a certain amount of specified resin which will provide sufficient anti-bacterial agent, so that when the pre-mix is added to a base resin, the final result will contain antibacterial agent preferably in the range of 0.01 to 1.0 percent, however usable materials have been made containing percentages as high as 30 percent of antibacterial agent. The mixture may then be heated and extruded, injection molded, or blown as a thin film, or alternatively extruded as a rod which is subsequently particulated, melted, and re-extruded as a thin film in a manner well known in the plastic art. As used herein the term molded is used to define a plastic part or article shaped by heat and pressure. The result is a mixture of anti-bacterial chemical agent and plastic with the former uniformly dispersed throughout matrix of the latter. During the heating of the plastic the antibacterial chemical melts and blends with the plastic but upon cooling the former recrystallizes in the form of a spicular crystal which interlaces the molecular structure of the plastic.

The film may be extruded and/or calendared to any desired thickness, preferably 0.0005 to 0.005. If the film is to be later embossed, a preferred thickness might be in the range of 0.001 to 0.003 inches. The film may then be fed to a pair of embossing and/or perforating rolls which either impart to the film a desired hole pattern and/or a textured surface having a channelling effect to be hereinafter described. Embossed sheets may be cut from the roll stock by passing between cutting rolls of the proper circumference with cutting bars properly spaced to register the cuts with the embossed pattern. The completed sheet thickness ranges from 0.002 to 0.006 inches or from 0.003 to 0.008 inches.

In use, the anti-bacterial agent applied according to US. Pat. No. 2,919,200 tends to migrate to both the front and back surfaces of the plastic sheets and, upon contact with any bacteria adjacent thereto, either kills outright or greatly inhibits their growth. The plastic sheets act as a reservoir for the hexachlorophene or Actamer, so that when the surfaces of the plastic sheet become deficient in the amount of anti-bacterial agent thereon, the reservoir of anti-bacterial agent releases a sufficient amount of the agent to replenish the surface.

The bacteria retarding or destructive effect of the improved napkin occurs simultaneously in two ways. First, menses flows along the surface of the plastic sheet contacting the anti-bacterial agent, then down through the perforations to the wadding below, where it may contact other treated plastic sheets. Secondly, as the wadding or core bocomes moist from normal body perspiration or the menses, the soluble anti-bacterial agent in the presence of moisture is drawn by hygroscopic action up into the wadding itself, providing a further surface area of anti-bacterial agent for contact with the menses.

The anti-bacterial plastic sheet, as stated above, is perforated to allow the menses to pass therethrough, although contacting it sufficiently to effectively inhibit the growth of bacteria. Plastic sheets 18 may be in the form of a perforated sheet having a regular hole pattern therein, or they may preferably take the form of plastic sheets 30, each having perforations 32, 34 and 36 of varying sizes. In such a case, the smaller perforations 32 are located near the central area of the sheet and gradually increase in size nearer the edge and ends of the sheet.

The perforations 32, 34, and 36 in the otherwise impervious sheet effectively cause the menses to spread toward the edges of sheet 30 rather than allowing it to collect near the center as is the usual case. Since the holes are larger near the edge, more of the menses will pass through in the edge area than in the central area in contrast to a napkin or pad of standard construction having no distributory characteristics.

The same effect might be achieved by using perforations of the same size and by providing fewer perforations near the central area of the sheet and more perforations near the edges. Both of the methods described above will distribute the menses more evenly throughout the napkin than is the usual case in ordinary sanitary napkins.

An alternate embodiment of one of the plastic sheets is shown in FIGS. 4 and 4A, wherein the anti-bacterial sheet 40 is embossed to provide longitudinal channels 42 and transverse channels 44. Channels 42 and 44 include perforations 46 which allow the menses to pass through sheet 40, and channels 42 and 44 urge the menses outwardly toward the edges of sheet 40 for a more even distribution. Perforations 46 may also preferably increase in size toward the edges of the plastic sheet. In addition to improving menses distribution, the embossing makes the sheet more flexible and thus, more comfortable.

Another embodiment of the plastic sheets is shown in FIG. 5, wherein the anti-bacterial sheet 50 is embossed to provide a central area 51 having channels 52 extending toward the corners and channels 54 extending toward the edges of sheets 50. The central area 51 and channels 52 and 54 include perforations 56, which also may increase in size and/or numbers toward the corners and edges of sheet 50. For an even better distribution of the menses flow, the side walls 58 and 60 of channels 52 and 54 may diverge as they approach the corners and edges.

Another possible embodiment using the antibacterial agent is to combine the bacterial agent in a crystalline form with polyolefin or other plastic resins. The mixture is then heated and extruded as a fiber which may be interspersedin the wadding 12' as shown in FIG. 6. The anti-bacterial fibers may alternatively be spun into yarn for making a fabric as a textile for use as a napkin cover 14" as shown in FIG. 7. In either case, it might not be necessary to insert the antibacterial plastic sheets 18 within the wadding or core 12 of the napkin. In cases where the anti-bacterial agent is incorporated into a fiber or yarn, the entire surface area is available for anti-bacterial action.

Although the description above has been directed toward the type of sanitary napkin adapted to be worn externally, it is to be recognized that the invention is equally useful in the internal or tampon type sanitary napkin.

There is thus provided an improved, anti-bacterial menses absorbing pad which is capable of greatly reducing the spread of infection and odor.

In the drawings and specification there have been set forth preferred embodiments of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only and not for the purposes of limitation, the scope of the invention being defined in the claims.

What is claimed is:

1. In a menses absorbing pad comprising an absorbent core surrounded by liquid pervious cover, the improvement comprising:

a bacteriostatic material forming a portion of the absorbing pad contacting the menses to kill or inhibit the growth of bacteria, said bacteriostatic material comprising an organic plastic carrier and a bacteriostatic agent molded together, said bacteriostatic agent interlacing the molecular structure of the plastic, and said plastic comprising one material of the group consisting of: acrylic, acrylonitrilebutaden-styrene, and ethylene vinyl acetate.

2. The menses absorbing pad as claimed in claim 1, wherein said bacteriostatic agent comprises hexachlorophene.

3. The menses absorbing pad as claimed in claim 1, wherein said bacteriostatic agent comprises Actamer.

4. In a menses absorbing pad comprising an absorbent core surrounded by a liquid pervious cover, the improvement comprising:

a bacteriostatic material forming a portion of the absorbing pad contacting the menses to kill or inhibit the growth of bacteria, said bacteriostatic material comprising an organic plastic carrier and a bacteriostatic agent molded together, said bacteriostatic agent interlacing the molecular structure of the plastic, said bacteriostatic material comprising at least one sheet inserted into the core and forming a layer thereof, said sheet including perforations of varying sizes including smaller perforations being located near the central area of the sheet and larger perforations being located near the edge of said sheet; whereby, the varying size of the perforations will cause the menses to be distributed more evenly throughout the core of said pad.

5. In a meanses absorbing pad comprising an absorbent core surrounded by a liquid pervious cover, the improvement comprising:

a bacteriostatic material forming a portion of the absorbing pad contacting the menses to kill or inhibit the growth of bacteria, said bacteriostatic material comprising an organic plastic carrier and a bacteriostatic agent molded together, said bacteriostatic agent interlacing the molecular structure of the plastic, said bacteriostatic material comprising at least one sheet inserted into said core and forming a layer thereof, said sheet comprising perforations with the number of perforations near the edge of the sheet being greater than the number of perforations near the central area of said sheet.

6. In a menses absorbing pad comprising an absorbent core surrounded by a liquid pervious core, the improvement comprising:

a bacteriostatic material forming a portion of the absorbing pad contacting the menses to kill or inhibit the growth of bacteria, said bacteriostatic material comprising an organic plastic carrier and a bacteriostatic agent molded together, said bacteriostatic agent interlacing the molecular structure of the plastic, said bacteriostatic material comprising at least one sheet inserted into said core and forming a layer thereof, said sheet being perforated and said sheet having a plurality of embossed channels extending from the center thereof toward the corners and edges to form means for channeling the menses towards the edges and the corners of said sheet.

Claims (5)

  1. 2. The menses absorbing pad as claimed in claim 1, wherein said bacteriostatic agent comprises hexachlorophene.
  2. 3. The menses absorbing pad as claimed in claim 1, wherein said bacteriostatic agent comprises Actamer.
  3. 4. In a menses absorbing pad comprising an absorbent core surrounded by a liquid pervious cover, the improvement comprising: a bacteriostatic material forming a portion of the absorbing pad contacting the menses to kill or inhibit the growth of bacteria, said bacteriostatic material comprising an organic plastic carrier and a bacteriostatic agent molded together, said bacteriostatic agent interlacing the molecular structure of the plastic, said bacteriostatic material comprising at least one sheet inserted into the core and forming a layer thereof, said sheet including perforations of varying sizes including smaller perforations being located near the central area of the sheet and larger perforations being located near the edge of said sheet; whereby, the varying size of the perforations will cause the menses to be distributed more evenly throughout the core of said pad.
  4. 5. In a meanses absorbing pad comprising an absorbent core surrounded by a liquid pervious cover, the improvement comprising: a bacteriostatic material forming a portion of the absorbing pad contacting the menses to kill or inhibit the growth of bacteria, said bacteriostatic material comprising an organic plastic carrier and a bacteriostatic agent molded together, said bacteriostatic agent interlacing the molecular structure of the plastic, said bacteriostatic material comprising at least one sheet inserted into said core and forming a layer thereof, said sheet comprising perforations with the number of perforations near the edge of the sheet being greater than the number of perforations near the central area of said sheet.
  5. 6. In a menses absorbing pad comprising an absorbent core surrounded by a liquid pervious core, the improvement comprising: a bacteriostatic material forming a portion of the absorbing pad contacting the menses to kill or inhibit the growth of bacteria, said bacteriostatic material comprising an organic plastic carrier and a bacteriostatic agent molded together, said bacteriostatic agent interlacing the molecular structure of the plastic, said bacteriostatic material comprising at least one sheet inserted into said core and forming a layer thereof, said sheet being perforated and said sheet having a plurality of embossed channels extending from the center thereof toward the corners and edges to form means for channeling the menses towards the edges and the corners of said sheet.
US3762415A 1968-03-06 1968-03-06 Anti-bacterial menses absorbing pads Expired - Lifetime US3762415A (en)

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US3939838A (en) * 1974-08-20 1976-02-24 Unicharm Kabushiki Kaisha Article for treating menstrual fluid
US4055180A (en) * 1976-04-23 1977-10-25 Colgate-Palmolive Company Absorbent article with retained hydrocolloid material
US4282874A (en) * 1979-05-11 1981-08-11 Johnson & Johnson Baby Products Company Disposable absorbent article of manufacture
US4608289A (en) * 1983-08-16 1986-08-26 Interface Research Corporation Carpet containing sanitizing compounds and methods
US4647601A (en) * 1984-03-08 1987-03-03 Interface Research Corporation Self-sanitizing epoxy resins and preparation thereof
US4753749A (en) * 1984-03-08 1988-06-28 Interface Research Corporation Microbiocidal cleaning agent and preparation thereof
US4908209A (en) * 1983-08-16 1990-03-13 Interface, Inc. Biocidal delivery system of phosphate ester and method of preparation thereof
US4935232A (en) * 1983-08-16 1990-06-19 Interface Research Corporation Microbiocidal composition and method of preparation thereof
US4957948A (en) * 1988-05-05 1990-09-18 Interface, Inc. Biocidal protective coating for heat exchanger coils
US5024840A (en) * 1984-03-08 1991-06-18 Interface, Inc. Antimicrobial carpet and carpet tile
US5032310A (en) * 1983-08-16 1991-07-16 Interface, Inc. Microbiocidal cleansing and disinfecting formulations and preparation thereof
US5133933A (en) * 1983-08-16 1992-07-28 Interface Research Corporation Microbiocidal preservative
US5474739A (en) * 1978-02-04 1995-12-12 Interface, Inc. Microbiocidal composition
US5635192A (en) * 1988-05-05 1997-06-03 Interface, Inc. Biocidal polymeric coating for heat exchanger coils
US5652049A (en) * 1993-11-15 1997-07-29 Paragon Trade Brands, Inc. Antibacterial composite non-woven fabric
WO2001041690A1 (en) * 1999-12-09 2001-06-14 The Procter & Gamble Company Disposable absorbent article employing odor reduction layer containing metalphthalocyanine material
WO2001041688A1 (en) * 1999-12-09 2001-06-14 The Procter & Gamble Company Disposable absorbent article having a patterned odor/antimicrobial reduction layer
WO2002091977A1 (en) * 2001-05-16 2002-11-21 The Procter & Gamble Company A process for making a fibrous web containing functional material
US6700036B2 (en) 2000-09-22 2004-03-02 Tredegar Film Products Corporation Acquisition distribution layer having void volumes for an absorbent article
US6960702B1 (en) 1999-12-09 2005-11-01 The Procter & Gamble Company Disposable absorbent article employing odor reduction layer containing metalphthalocyanine material
US20090038174A1 (en) * 2007-08-07 2009-02-12 Dar-Style Consultants & More Ltd. Kitchen utensil dryer
US20090232761A1 (en) * 2005-11-29 2009-09-17 Jan Faergemann Use of a Composition Comprising Pentane-1, 5-Diol as Deodorant
US20110162661A1 (en) * 2009-05-27 2011-07-07 St Anne Cora Method and device for female urinary incontinence
US20120237758A1 (en) * 2011-03-14 2012-09-20 Lisa Hook Method and Article for Concealing Labia Ridges
US9408683B2 (en) 2009-05-27 2016-08-09 Parapatch, Inc. Method and device for treating female pelvic nerve dysfunction
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US4637819A (en) * 1985-05-31 1987-01-20 The Procter & Gamble Company Macroscopically expanded three-dimensional polymeric web for transmitting both dynamically deposited and statically contacted fluids from one surface to the other
US6610904B1 (en) 2000-09-22 2003-08-26 Tredegar Film Products Corporation Acquisition distribution layer having void volumes for an absorbent article
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US3939838A (en) * 1974-08-20 1976-02-24 Unicharm Kabushiki Kaisha Article for treating menstrual fluid
US4055180A (en) * 1976-04-23 1977-10-25 Colgate-Palmolive Company Absorbent article with retained hydrocolloid material
US5474739A (en) * 1978-02-04 1995-12-12 Interface, Inc. Microbiocidal composition
US4282874A (en) * 1979-05-11 1981-08-11 Johnson & Johnson Baby Products Company Disposable absorbent article of manufacture
US4608289A (en) * 1983-08-16 1986-08-26 Interface Research Corporation Carpet containing sanitizing compounds and methods
US5032310A (en) * 1983-08-16 1991-07-16 Interface, Inc. Microbiocidal cleansing and disinfecting formulations and preparation thereof
US5133933A (en) * 1983-08-16 1992-07-28 Interface Research Corporation Microbiocidal preservative
US4908209A (en) * 1983-08-16 1990-03-13 Interface, Inc. Biocidal delivery system of phosphate ester and method of preparation thereof
US4935232A (en) * 1983-08-16 1990-06-19 Interface Research Corporation Microbiocidal composition and method of preparation thereof
US5024840A (en) * 1984-03-08 1991-06-18 Interface, Inc. Antimicrobial carpet and carpet tile
US4647601A (en) * 1984-03-08 1987-03-03 Interface Research Corporation Self-sanitizing epoxy resins and preparation thereof
US4753749A (en) * 1984-03-08 1988-06-28 Interface Research Corporation Microbiocidal cleaning agent and preparation thereof
US4957948A (en) * 1988-05-05 1990-09-18 Interface, Inc. Biocidal protective coating for heat exchanger coils
US5635192A (en) * 1988-05-05 1997-06-03 Interface, Inc. Biocidal polymeric coating for heat exchanger coils
US5639464A (en) * 1988-05-05 1997-06-17 Interface, Inc. Biocidal polymeric coating for heat exchanger coils
US5652049A (en) * 1993-11-15 1997-07-29 Paragon Trade Brands, Inc. Antibacterial composite non-woven fabric
US20050197641A1 (en) * 1999-12-09 2005-09-08 The Procter & Gamble Company Disposable absorbent article having a patterned odor/antimicrobial reduction layer
WO2001041690A1 (en) * 1999-12-09 2001-06-14 The Procter & Gamble Company Disposable absorbent article employing odor reduction layer containing metalphthalocyanine material
WO2001041688A1 (en) * 1999-12-09 2001-06-14 The Procter & Gamble Company Disposable absorbent article having a patterned odor/antimicrobial reduction layer
US7655828B2 (en) 1999-12-09 2010-02-02 The Procter & Gamble Company Disposable absorbent article having a patterned odor/antimicrobial reduction layer
US6960702B1 (en) 1999-12-09 2005-11-01 The Procter & Gamble Company Disposable absorbent article employing odor reduction layer containing metalphthalocyanine material
WO2001041689A1 (en) * 1999-12-09 2001-06-14 The Procter & Gamble Company Disposable absorbent article employing odor reduction layer containing metalphthalocyanine material
US6700036B2 (en) 2000-09-22 2004-03-02 Tredegar Film Products Corporation Acquisition distribution layer having void volumes for an absorbent article
WO2002091977A1 (en) * 2001-05-16 2002-11-21 The Procter & Gamble Company A process for making a fibrous web containing functional material
WO2002091976A1 (en) * 2001-05-16 2002-11-21 The Procter & Gamble Company A process for making a fibrous web containing a functional material
US20090232761A1 (en) * 2005-11-29 2009-09-17 Jan Faergemann Use of a Composition Comprising Pentane-1, 5-Diol as Deodorant
RU2455027C2 (en) * 2005-11-29 2012-07-10 Амбриа Дерматолоджи АБ Use of composition containing pentane-1,5-diol as deodorant
US20090038174A1 (en) * 2007-08-07 2009-02-12 Dar-Style Consultants & More Ltd. Kitchen utensil dryer
US20110162661A1 (en) * 2009-05-27 2011-07-07 St Anne Cora Method and device for female urinary incontinence
US8684008B2 (en) 2009-05-27 2014-04-01 Cora St. Anne Method and device for female urinary incontinence
US9408943B2 (en) 2009-05-27 2016-08-09 Parapatch, Inc. Method and device for female urinary incontinence
US9408683B2 (en) 2009-05-27 2016-08-09 Parapatch, Inc. Method and device for treating female pelvic nerve dysfunction
US9492260B2 (en) 2009-05-27 2016-11-15 Parapatch, Inc. Systems and methods for treating female incontinence and pelvic nerve dysfunction
US20120237758A1 (en) * 2011-03-14 2012-09-20 Lisa Hook Method and Article for Concealing Labia Ridges
USD798462S1 (en) 2016-04-01 2017-09-26 Parapatch, Inc. Clitoral adhesive device

Also Published As

Publication number Publication date Type
DE1910334A1 (en) 1969-09-25 application
FR2003308B1 (en) 1973-11-16 grant
FR2003308A1 (en) 1969-11-07 application
GB1263311A (en) 1972-02-09 application
CA939451A1 (en) grant
CA939451A (en) 1974-01-08 grant

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