US3695270A - Sanitary tampon - Google Patents
Sanitary tampon Download PDFInfo
- Publication number
- US3695270A US3695270A US5080A US3695270DA US3695270A US 3695270 A US3695270 A US 3695270A US 5080 A US5080 A US 5080A US 3695270D A US3695270D A US 3695270DA US 3695270 A US3695270 A US 3695270A
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- US
- United States
- Prior art keywords
- filaments
- openings
- absorbent
- tampon
- needle
- 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
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- 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
- A61F13/53—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 absorbing medium
- A61F13/539—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
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- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2022—Tampons, e.g. catamenial tampons; Accessories therefor characterised by the shape
- A61F13/2045—Cup-shaped type tampons
-
- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2022—Tampons, e.g. catamenial tampons; Accessories therefor characterised by the shape
- A61F13/2048—Ball-shaped tampons
-
- A—HUMAN NECESSITIES
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- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2071—Tampons, e.g. catamenial tampons; Accessories therefor characterised by the material or the structure of the outer layer
-
- A—HUMAN NECESSITIES
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- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—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 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
- A61F13/53708—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 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
-
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- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—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 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
- A61F13/53743—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 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
- A61F13/53747—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 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 facing the topsheet
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- 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
- A61F13/53—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 absorbing medium
- A61F13/538—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 absorbing medium characterised by specific fibre orientation or weave
-
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- 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
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2002—Tampons, e.g. catamenial tampons; Accessories therefor characterised by the use
- A61F13/202—Catamenial tampons
-
- 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
-
- A—HUMAN NECESSITIES
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- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- A—HUMAN NECESSITIES
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- 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
- A61F13/56—Supporting or fastening means
- A61F13/58—Adhesive tab fastener elements
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- A—HUMAN NECESSITIES
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- 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
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
- A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
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- A—HUMAN NECESSITIES
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- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F2013/53445—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 absorbing medium having an inhomogeneous composition through the thickness of the pad from several sheets
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- A—HUMAN NECESSITIES
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- 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
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- A61F13/539—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F2013/53908—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers with adhesive
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- A—HUMAN NECESSITIES
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- A61F2013/53966—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers by needling, sewing, blow-needling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S604/00—Surgery
- Y10S604/904—Tampons
Definitions
- the transference may be effected through the use of transfer needles, which not only transfers filaments but additionally provides the openings through which the filaments extend.
- the absorbent material is particularly adapted for use in a tampon or other other catamenial device.
- Other uses such as in disposable diapers or in other products where a relatively high degree of absorbency in a relatively economical product is desirable are also contemplated.
- the present invention relates to an absorbent material and the methods of making the same. While variousapplications for such absorbent material are contemplated, the present invention finds specific application for use in catamenial devices such as tampons.
- the material employed must be comfortable so as to allowready insertion into the vaginal canal; have a strength sufficient to retain its' integrity in use; and further have the ability to expand once subjected to the moisture in the vaginal canal so as to conform to the space between the walls of the canal to prevent leakage of the menstrual discharge and still allow for easy withdrawal.
- the materials employed must also be adapted to be made economically both with respect to material cost and manufacture processes.
- Present catamenial devices generally employ fibrous materials such as cellulosic structures, principally rayon, cotton, paper or mixtures or blends thereof depending principally upon the absorptive capacities of the bulk of the materials to increase absorbency.
- fibrous materials such as cellulosic structures, principally rayon, cotton, paper or mixtures or blends thereof depending principally upon the absorptive capacities of the bulk of the materials to increase absorbency.
- absorptive capacity is increased through the use in a tampon of an absorptive material having at least two layers where at least one of the layers has absorptive capabilities and at least one of the layers includes filaments, wherein a portion of the filament of the filament bearing layer has been transferred completely through openings in the other companion layer.
- one of the layers preferably is adapted to act as a matrix with the filaments of the otherof the layers extending through openings in the matrix layer.
- a tampon having absorbent material weighing 2.2 grams, 50 percent of which is rayon and 50 percent of which is cellulose crepe wadding normally has an absorbency equal to only 80 percent of an identically constructed, more expensive all rayon tampon having absorbent material weighing 2.2 grams.
- the same rayon and cellulose crepe wadding constituents are modified in accordance with the present invention to provide openings through the cellulose crepe wadding, and a plurality of the filaments of the rayon are transferred through such openings the tampon will have an absorbency level equal to the more expensive all rayon tampon.
- the absorptive composite of the present invention is preferably formed by juxtaposing in substantially superimposed relationship, two constituent materials; at least one of such materials being of an absorptive substance, and at least one of such materials including filaments; forming openings through at least one of such materials, and transferring filaments from such filament bearing material through the other of such materials.
- the formation of the openings and the filament transference steps are accomplished in a single operation by the use of barbed needles, such as the type commonly referred to as felting needles with a least portion of the barbs oriented along the shank of the needle in the direction of the desired filament transference.
- barbed needles such as the type commonly referred to as felting needles with a least portion of the barbs oriented along the shank of the needle in the direction of the desired filament transference.
- the transference of filaments be of a degree such that the number of filaments on either face of the matrix layer be substantially equal.
- the increase in absorbency of the material of the present invention is due to alteration in the interstitial spacing effected during transference, the increase of the surface area effected in the creation of the openings, and/or the wicking or capillarity between layers along the transferred through filaments.
- the transferred through filaments act not only to maintain the integrity of the united constituent materials but further serve to maintain the integrity of the openings through the layers. This latter feature has special pertinency in the use of the absorbent material in catamenial devices where the forming machinery generally exerts a crimping pressure on the material being processed to shape and set the tampon.
- FIG. 1 is a top elevational view of an absorbent material of the present invention, with a corner of one of the layers folded back to indicate the manner in which the filaments of one layer are transferred through the openings provided in the. other layer.
- FIG. 2 is a cross sectional view taken along lines 22 of FIG. 1 with dimensions exaggerated for clarity.
- FIG. 3 is a cross sectional view, also exaggerated for clarity, of another embodiment of the present invention.
- FIG. 4 is a cross sectional view, similarly exaggerated for clarity, of an alternate embodiment of an absorbent material of the present invention.
- FIG. 5 is a schematic illustration of an apparatus for constructing an absorbent material in accordance with a method of the present invention.
- FIGS. 6a-c are side elevations illustrating the sequential filament transference of the present invention
- FIG. 6a illustrating superimposed layers of constituent material before the entry of the transfer needle
- FIG. 6b illustrating a transfer needle as it transfers filaments
- FIG. 6c illustrating the transfer needle as it is withdrawn from the united constituent layers with the transferred filaments extending through the openings.
- FIGS. 7-9 are side elevational views of various transferring needles which may be employed.
- FIG. 10 is a sectionalized perspective of a portion of a tampon employing absorbent material of the present invention.
- FIG. 11 is a side elevation illustrating the absorbent material of the present invention formed as a tampon and disposed within a tampon insertion device, partially cut-away.
- FIGS. 1 and 2 Illustrated in FIGS. 1 and 2 is one form of an absorbent composite l of the present invention. While various materials may be employed, the particular composite shown comprises two dissimilar constituents 2,3, both of which are absorbent, and at least one of which (2) contains relatively long filaments.
- one of the constituents 2 is a fibrous substance, such as rayon and its companion constituent 3 is an absorbent paper such as cellulose crepe wadding.
- the absorbent composite is provided with a plurality of openings 4 extending through the cellulose crepe wadding layer 3 through which the filaments 2' of the rayon fibrous material 2 pass, such that filaments 2' and 2" extend on opposite faces of the crepe wadding layer 3.
- constituents 2,3 may be referred to as layers although as illustrated in FIGS. 1 and 2, the transference of the fiber filaments 2 of the fibrous material 2 through the companion layer 3 has been accomplished in a manner so as to substantially equalize the number of transferred filaments 2' and non-transferred filaments 2" at the opposed faces of the companion layer 3.
- the absorbent composite 5 illustrated also includes dissimilar constituents with a fibrous layer 6 and a companion matrix layer 7. However, a lesser portion 8 of the filaments of the fibrous layer 6 are transferred through the openings 9 in the companion matrix layer 7 so as to be exposed on the outer face of the companion layer 7. 7
- FIGS. 1-3 illustrate embodiments including two starting layers, various other combinations of multi-layers of material are possible.
- FIG. 4 for example there is illustrated an absorbent composite 10 including an inner layer of fibrous material 11 and a pair of outer matrix layers 14. A portion of the filaments 12 of the inner layer 11 have been transferred through openings 13in both outer superimposed layers 14.
- the layers bf the absorbent composite illustrated in FIGS. 1-4 are not necessarily as clearly defined as illustrated.
- the filament transference is such that while the constituent materials retain their respective identities a selective union of the materials results visually integrating the constituents.
- the amount of openings and filaments transferred per unit can vary depending upon the degree of increased absorbency desired ranging from a small number of openings to that degree of openings which would destroy the matrix layer. Since it is desired to have at least some filaments passing through each of the openings to maintain the integrity of the openings, a particularly favorable union would be a uniting such as illustrated in FIG. 2 where there is a substantial equalization of filaments on opposite faces of the matrix layer. There is thus provided substantially equalized wicking on both faces of the matrix with filaments extending through all of the openings.
- FIG. 5 there is illustrated an apparatus for processing an absorbent composite in accordance with the present invention.
- a web of fibrous material 15 is fed such as from a spool 16 to a needle punching machine 17.
- a second web of material 18 is also fed, such as from a spool 19 so as to lie in superimposed relationship with the fibrous material 15 when the two webs 15,18 are positioned at the work station area 20 of the needle punching machine 17.
- the needle punching machine 17 depicted is but a schematic representation encompassing in a broad sense the basic operation of needle punch equipment, it being understood that various apparatus are available to perform the fiber filament transference and hole punching functions requisite in forming the absorbent material of the present invention.
- the needle punching machine 17 includes an reciprocally driven piston 21 adapted to drive a needle beam 22 carrying a plurality of vertically oriented barbed needles 23 so as to vertically actuate the needles 23 to vertically reciprocate them into needle receptacles 24 in the bed 25.
- a transference of the filaments and a union of the webs 15, 18 also occurs and the so processed resultant absorbent material 27 is taken up,such as by take-up spool 28.
- the needles 23 pass through the webs 15,18 effecting openings.
- the barbs 26 effect a fiber filament transference from the'fibrous web 15 through the formed openings in the second web 18.
- FIGS. 6a through 6c The sequential steps are illustrated in FIGS. 6a through 6c wherein the barbs 26 engage a portion of the filaments on the web 15. The point of the needle 23 punctures the web 18 and the filaments engaged by the barbs 26 are transferred through the openings so made. The needle 23 is then retracted with the filaments disengaged from the barbs, such filaments remaining within the openings and extending through the web 18.
- the needle 29 is constructed having barbs 30 disposed along its shank 31 such that the barbs 30 would engage filaments and transfer them in the direction of the arrow A.
- Such a needle configuration would be employed where the shank 31 would first pass through the fibrous material and then the transferee web such as is shownin FIG. 5 and FIGS. 6a-c.
- a needle 32 such as illustrated in FIG. 8 would be suitable.
- the barbs 33 on the needle 32 are aligned so as to engage a portion of the fiber filaments on the fibrous 'web and draw such filaments through the needle made openings in the transferee web.
- transference between webs can be accomplished from both above and below the webs employing various combinations of needles 29,32 and 34 illustrated in FIGS. 7,8 and 9 respectively.
- An alternative method of constructing a multilayered composite such as the composite of FIG. 4 may be accomplished by use of needles, such as illustrated by the needle 34 of FIG. 9.
- the needle 34 of FIG. 9 includes along its shank 31, both barbs 36 for transference in one direction and barbs 37 for transference in the opposite direction.
- the downward stroke of the needle through the multiple webs would transfer filaments in the direction of the stroke through the bottom web.
- the reciprocal retracting motion of the needle would transfer filaments from the central web of fibrous material through the upper web.
- Filament transference including the provision of openings has resulted in increased absorbency and this has been found to be of particular value in the construction of tampons.
- FIG. 10 a typical tampon structure of the present invention is shown.
- the tampon illustrated may be constructed in a variety of ways using various manufacturing techniques.
- a multiphase linear flow machine such as depicted in US. Pat. No. 3,465,390 to Mooney may be employed.
- the tampon 43 shown includes two layers of superimposed absorbent material 38 constructed in accordance with the present invention.
- a gauze layer 44 for strong securement is positioned between the two absorbent material layers 38 and a withdrawal string 39 extends through the layers 38, 44.
- gauze layer 44 may be dispensed with in embodiments where the matrix layer of the absorbent material 38 is of a sufficient strength to maintain the string 39 securely even after the absorbent material 38 has been subjected to moisture.
- FIG. 1 1 Illustrated in FIG. 1 1 is the tampon of FIG. 10 loaded into a telescoping tube inserter device 40 such as. those presently available in the art. It might further benoted that as formed the openings 41 and fibers 42 extend transversely with respect to the body portion of the tampon thus facilitating not only the absorption of menstrual fluid, but further present a network of openings for the menstrual discharge.
- absorbent and non-absorbent materials can be employed in the formation of an acceptable starting material for use as a tampon and the non-absorbent constituents may be chosen for both strength and selective functionality. Further, enhancement of absorbent characteristics is also provided in an all rayon combination.
- the Syngyna Method basically consists of applying to a properly positioned tampon an adaptation pressure of physiological magnitude and then allowing a fluid of proper consistency to flow at its tip at a controlled rate. The test is concluded when the first drop of fluid begins to fall from the open end of the Syngyna regardless of whether the tampon seems saturated or not.
- Material Transference Employed Method Results 50% rayon 3 Barbed needles, Syngyna absorbency denier, 1 9/16 triangular shank, of 11.2 grams fiber length 15 gauge (0.072 50% cellulose inch) diameter crepe wadding 800 needle holes 10 lb. per 3,000 per square inch sq. feet (l0 9 barbs per plies) needle Material Transference Employed Method Results 50% rayon 3 NONE Syngyna absorbency denier, 1 9/16 of 9.0 grams fiber length 50% cellulose crepe wadding 10 lb. wgt. per 3,000 sq. feet (10 plies) The 50 percent rayon, 50 percent cellulose crepe wadding sample exhibited progressively enhanced absorbency levels as the needle transferring operation progressed as can be seen from the chart below:
- Material Transference Employed Method Results 40% rayon 3 Barbed needles, Syngyna absorbency denier, l 9/l6 triangular shank, of 10.40 grams fiber length 15 gauge (0.072 60% cellulose inch diameter) crepe wadding 800 needle holes lbv wgt. per per square inch 3,000 sq. feet 9 barbs per needle l0 plies) Material Transference Employed Method Results 25% rayon 3 Barbed needles, Syngyna absorbency denier, l 9/ l6 triangular shank. of 9.30 grams fiber length gauge (0.072 75% cellulose inch) diameter crepe wadding 800 needle holes lOIb. wgt. per per square inch 3000 sq.
- a polyurethane (non-absorbent) and cellulose crepe wadding sampling containing no openings for filament transference exhibited an absorbency level from 2 to 3 percent less than the sample VI sampling above. It is also of note that where a sampling of percent rayon [3 denier 1 9/16 fiber length] was combined in a 20 percent polyurethane 96 inch sheet nonabsorbent] there was a 5 percent increment in absorbency where openings and filament transference was effected by barbed needles of the type indicated in the examples.
- the absorbency levels of the absorbent composite is a function of:
- the transferee layer be of a material which will act well as a matrix to retain openings having filaments extending therethrough.
- a tampon comprising at least two constituent absorbent layers, one of said layers having absorbent filaments, the other of said absorbent layers having plurality of openings therethrough; a portion of said absorbent filaments extending through the openings in said other layer to form an integrated absorbent composite; said absorbent composite oriented in said tampon whereby the major portion of said openings having filaments extending therethrough extend in a direction transverse to the body of said tampon.
- a tampon comprising, a first strip of an absorbent composite, a second strip of an absorbent composite, each of said strips including superimposed layers of absorbent rayon and absorbent crepe paper; said rayon layer having a plurality of filaments; said crepe paper having a plurality of openings; said rayon and paper layers united such that a portion of the filaments of said rayon layer extend through the openings in said paper layers to form an integrated composite; said first and second strips of absorbent composite in superimposed relationship and formed into a substantially cylindrical compressed body such that the major portion of said opening in said paper layers extend in a direction transverse to said cylindrical body.
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- 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)
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Abstract
Description
Claims (2)
- 2. A tampon comprising, a first strip of an absorbent composite, a second strip of an absorbent composite, each of said strips including superimposed layers of absorbent rayon and absorbent crepe paper; said rayon layer having a plurality of filaments; said crepe paper having a plurality of openings; said rayon and paper layers united such that a portion of the filaments of said rayon layer extend through the openings in said paper layers to form an integrated composite; said first and second strips of absorbent composite in superimposed relationship and formed into a substantially cylindrical compressed body such that the major portion of said opening in said paper layers extend in a direction transverse to said cylindrical body.
- 3. The tampon as claimed in claim 2 wherein the number of openings in each of said paper layers is in the order of 100 to 1,000 openings per square inch and each of said openings has a diameter of at least 0.072 of an inch.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US508070A | 1970-01-22 | 1970-01-22 |
Publications (1)
Publication Number | Publication Date |
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US3695270A true US3695270A (en) | 1972-10-03 |
Family
ID=21714073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US5080A Expired - Lifetime US3695270A (en) | 1970-01-22 | 1970-01-22 | Sanitary tampon |
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Country | Link |
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US (1) | US3695270A (en) |
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US5239734A (en) * | 1989-06-30 | 1993-08-31 | Sommer S.A. | Process and device for manufacturing textile products from fibres and/or filaments and products obtained |
WO1999018905A1 (en) * | 1997-10-10 | 1999-04-22 | The Procter & Gamble Company | Absorbent interlabial device comprising a fluid acquisition/transfer complex |
EP0858790A3 (en) * | 1997-02-14 | 1999-12-01 | Spinnerei C.B. Göldner GmbH & Co.KG | Absorbing substance for medical application |
US6152905A (en) * | 1997-10-10 | 2000-11-28 | The Procter & Gamble Company | Absorbent interlabial device comprising a fluid acquisition/transfer complex |
US6186994B1 (en) * | 1998-07-30 | 2001-02-13 | The Procter & Gamble Company | Layered tampon |
WO2004058117A1 (en) * | 2002-12-20 | 2004-07-15 | The Procter & Gamble Company | Tufted fibrous web |
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US20040242097A1 (en) * | 2002-12-20 | 2004-12-02 | The Procter & Gamble Company | Cloth-like personal care articles |
US20040243088A1 (en) * | 2003-05-02 | 2004-12-02 | Playtex Products, Inc. | Tampon assembly having shaped pledget |
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WO2007001270A1 (en) * | 2005-06-21 | 2007-01-04 | The Procter & Gamble Company | Tufted fibrous web |
US7270861B2 (en) | 2002-12-20 | 2007-09-18 | The Procter & Gamble Company | Laminated structurally elastic-like film web substrate |
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US7845055B1 (en) * | 2009-10-29 | 2010-12-07 | Mcneil-Ppc, Inc. | Tampon formed from a selectively needled nonwoven fabric web |
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US3811445A (en) * | 1970-01-22 | 1974-05-21 | Int Playtex Corp | Absorbent material and methods of making the same |
US3856013A (en) * | 1971-08-18 | 1974-12-24 | Procter & Gamble | Hollow foam tampons from flat blanks |
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US5171238A (en) * | 1989-03-16 | 1992-12-15 | The Transzonic Companies | Absorbent pad with fibrous facing sheet |
US5239734A (en) * | 1989-06-30 | 1993-08-31 | Sommer S.A. | Process and device for manufacturing textile products from fibres and/or filaments and products obtained |
US6155083A (en) * | 1997-02-14 | 2000-12-05 | Spinnerei C.B. Goldner Gmbh & Co. | Absorbent body for medical use |
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JP2001519208A (en) * | 1997-10-10 | 2001-10-23 | ザ、プロクター、エンド、ギャンブル、カンパニー | Absorbable interlabial device including fluid acquisition / migration complex |
WO1999018905A1 (en) * | 1997-10-10 | 1999-04-22 | The Procter & Gamble Company | Absorbent interlabial device comprising a fluid acquisition/transfer complex |
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US8153225B2 (en) | 2002-12-20 | 2012-04-10 | The Procter & Gamble Company | Tufted fibrous web |
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US20040229008A1 (en) * | 2002-12-20 | 2004-11-18 | The Procter & Gamble Company | Inverse textured web |
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US8697218B2 (en) | 2002-12-20 | 2014-04-15 | The Procter & Gamble Company | Tufted fibrous web |
WO2004058117A1 (en) * | 2002-12-20 | 2004-07-15 | The Procter & Gamble Company | Tufted fibrous web |
AU2003301008B2 (en) * | 2002-12-20 | 2006-09-07 | The Procter & Gamble Company | Tufted fibrous web |
EP2332504A1 (en) * | 2002-12-20 | 2011-06-15 | The Procter & Gamble Company | Tufted fibrous web |
US7172801B2 (en) * | 2002-12-20 | 2007-02-06 | The Procter & Gamble Company | Tufted laminate web |
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US7648752B2 (en) | 2002-12-20 | 2010-01-19 | The Procter & Gamble Company | Inverse textured web |
US7838099B2 (en) | 2002-12-20 | 2010-11-23 | The Procter & Gamble Company | Looped nonwoven web |
US7682686B2 (en) | 2002-12-20 | 2010-03-23 | The Procter & Gamble Company | Tufted fibrous web |
US7718243B2 (en) | 2002-12-20 | 2010-05-18 | The Procter & Gamble Company | Tufted laminate web |
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Owner name: BANKERS TRUST COMPANY Free format text: SECURITY INTEREST;ASSIGNORS:PLAYTEX FP, INC.;PLAYTEX JHIRMACK, INC.;REEL/FRAME:005018/0154 Effective date: 19881228 |
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