DE2107426A1 - Sanitary insert or pad for underwear for single use - Google Patents

Description

DR. BERG DIPL.-ING. STAPF

PATENTANWÄLTE 2 1 O 7 4 2 R

8 MUNICH 8O, MAUERK1RCHERSTR. 4S

Dr. Berg Dipl.-Ing. Stapf, 8 Munich 80, MauerkircherstraBe 45

Your reference your letter Our reference date

l6. February 1971 Jj lawyer file 2o 675

VINCENT RAYMOND SNEIDER Atlanta, Georgia 3 <> 319 / USA

Sanitary insert or pad for underwear for single use

Addendum to patent "

Patent application P 19 29 267.2

The invention relates to a sanitary bin or pad for Underwear for single use, in particular according to patent application P 19 29 267 · 2. -

The patent application P 19 29 267.2 relates to an insert or overlay for binomial use such as a sanitary napkin, a tampon or the like, which can be attached again to underwear such as knickers, a hip belt or the like . ₁₀ 9843/1061 488272 (988272) 487043 (987043) 483310 (983310) telegram! 8EKGSTAPrTATENT MOnchwt TElEX 05 24 SM Κ * β

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Sanitary pads and pads as well as tampons are of course known. With an ongoing research program, you have one more or less advanced in these items. Many women face the problem of a standing slight discharge opposite. The usual sanitary napkins, tampons and the like, which are used during the regular monthly flow are suitable for this particular purpose, but are too large and inconvenient for everyday use. There is, therefore, a need for an inflow or pad that will accommodate easy discharge and every day without discomfort can be worn.

Various attempts have already been made to create a small sanitary insert or overlay, which is in the gusset area a slipper or a hip belt can be attached. Such small deposits or editions are common attached to the undergarment by fasteners and the like. The small ones made on the basis of these experiments However, pads have usually proven to be too large and inconvenient or unsatisfactory to attach to the underwear proved.

The invention is therefore intended to create an absorbent insert or pad intended for single use which has its own protective device for the item of laundry in which it is worn. The Sin or Edition should have a minimal and even thickness and no material folds and should be tapered at the peripheral edges. the The insert or support created according to the invention is intended to be attached to the item of laundry be self-adhesive and adapt flexibly to the deformation of the item of laundry. The absorbency of the thin, wrinkle-free insert or overlay should mainly ~~ within the There are limits of scope. Furthermore, the underwear cover or cover for single use should be slightly in the gusset

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a piece of underwear can be attached without the need for fasteners or other fastening devices.

In the following, exemplary embodiments according to the invention are explained, for which reference is also made to the accompanying drawings is taken.

Fig. 1 shows in perspective an underwear liner or pad according to the invention.

Figures 2 and 2A are sections of possible embodiments along 2-2 of Fig. 1.

Fig. 3 shows schematically a system for producing the binding or edition of Fig. 1.

The preferred single or support structure shown in the figures has no material folds. As can be seen in FIG. 1, the insert or support 35 is characterized by a continuous peripheral edge j6 of reduced thickness without any material fold or fold being present. The basic arrangement of the layers is as follows:

a) An outer cover or top sheet 371 die can consist of a thin non-woven fabric or a thin non-woven fabric, -Different such products are known under the name "Masslin" (Chicopee Manufacturing Company) - and a non-toxic, thermoplastic material contain. The thickness of the cover 37 can be between 0.12 and 0.25 mm (0.005 to ο, οΐο inch).

b) A wadding or filler 38 of about 0.25 mm (ο, οΐο inchj ^ starch made from bleached cellulose and can be layered to get the desired strength and volume, which is for example by five Layers can be achieved.

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c) Bine pad 39 made of plastic film, for example may be made of 12.5 u (0.5 mil) thick polyethylene.

d) A tear-off or tear-off strip ko made of plastic or paper, which protects the adhesive coating on the substrate 39 until it is used.

The arrangement is so that first the cover 37 on the Filler 38 is adhered so that the profile 36 is set with a reduced thickness. The fabrics, off which the cover 37 and the filler 38 are to be made be such that they adhere to and re-deform under heat and pressure, the adhesive connection or the gluing takes place continuously.

The polyethylene film 39 can be supplied in an already completed state, ie with an adhesive-coated back on which the tear-off strip material ko has already been applied. The entire process of adhesive bonding, joining and cutting (punching) can be carried out in a single, continuously operating device, as is shown in FIG.

In the modified embodiment shown in Fig. 2A, the area of the peel-off part 4o ^f and the non-toxic adhesive is smaller than that of the insert or support 35. For example, two parts ko ^{i are arranged} at a distance from one another on the plastic back 39, of which each a suitable grip tab ko "has.

As shown in Fig. 3, by means not shown an endless flexible laminate, which has a plastic film 39, which is already with the from the tear strip

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The existing rear side 4o is joined together to a gluing station 4l, the film 39 being arranged with the bare side facing up in FIG. The adhesive from the container 42 is applied by a roller 43 which is arranged opposite a corresponding idler roller 44 on the tear-off strip side of the laminate. Preferably, the adhesive is applied as a pattern with evenly spacing, which is determined by the surface contour lines or the texture of the roller 43. To be satisfactory, an adhesive pattern of dots with a diameter of 6 mm Ä or a grid of spaced apart in the longitudinal direction and transverse direction or intersecting, 6 mm wide strip of adhesive at intervals of 6 mm has been found; An odorless and quick-drying adhesive, for example dextrin, is preferred.

The plastic 39 freshly coated with adhesive forms a of three endless belts or webs that form a pair of connecting rollers or rollers 46, 47 is fed, the other two webs, namely the cover material 37 »from his Feed 37 'from and the filler 38 from its feed 38 * can be fed out. The rollers 45 »46 serve of course also for guidance and alignment and are arranged at a distance ^ to each other, which is sufficient that the adhesive contact between the coated plastic 39 and the underside of the wadding 38 is reached, at the same time a compression the wadding 38 is avoided when the three webs be brought together.

The layers or webs 37 »38 and 39» 40 joined together in this way then pass through a pair of binding elements 47, 48 which, in the form of matched rollers or pressure rollers for

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local squeezing of the layers are shown. Corresponding raised or relief parts 47 *, 48 * are provided as profiles in order to form the locally compressed area 36, which ultimately forms the edge with reduced thickness of the binding or support 35. The rollers 47, 48 can be heated sufficiently to allow the thermoplastic contained in the cover 37 to melt and flow locally. This flow allows the cover 36 to adhere to the periphery of the filler 38 to such an extent that the thermoplastic material can penetrate the adjoining thickness area of the filler 38, so that the filler is solidified into a relatively dense edge zone which is suitable for is responsible for the massive or permanent extent j6 of reduced strength. At the same time, the heat emanating from the rollers 47, 48 promotes the drying of the adhesive by means of which the filler 38 is attached to the polyethylene film 39. The increased density of the filler 38, when it is solidified by the application of heat and pressure described above, is intended to contribute to the formation of an edge 36 which does not or hardly has an absorbent effect and which continuously surrounds or extends the extent of the absorbent material 37-38 which was laid out first . framed.

If the peripheral edge or the edge 36 is formed of reduced thickness by this delimitation and consolidation, is the continuously moving strip material next through the cutting elements or rollers 49 »50 for cutting of the final outline of the binding or support along the edge 36. Dashed lines connecting rollers 47, 48, 49 and 5o Lines 51 show that a completely synchronous drive is guaranteed, so that the cut-out pieces with the binding edge 36 of each of the successive products for Are brought under cover. A guide roller 52 resting on it by gravity guides the cutting path when it

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Cutting station ^ 9j 5 ° leaves, so that the separated products can fall into a suitable collecting or stacking device 53.

If a full oval or an overall rectangular shape and the width of the feed material 37, 38 and 39i ^ o are suitably selected as the shape for the insert or support 35, the loss due to the remaining strip 5k is minimal. The product 35 produced is highly effective and satisfactory in that it is extremely flexible and conforms to the deformation of the item of laundry to which it is temporarily self-adhering. The flexibility is increased by the fact that there are no folds or folds in the material]. As a result of the thermoplastic solidification and due to the continuous, relatively dense edge 36, the moisture remains in the absorbent zone.

The above example relates to an insert or support for an item of underwear or a pair of panties. The deposits or However, conditions can also be used for other purposes, with the outlines being adapted to the respective purpose are. So z. B. a circular cut in or support of the same type as a removable, absorbent insert serve for a brassiere or be used as a wound dressing that is not adhered to the body, but is held by the garment.

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Claims (1)

PATENT CLAIMS f 1 · / Sanitary liner · or pad for underwear for the Single use, which is removably held by self-adhesion to the inner surface of an item of laundry, in particular according to patent application P 19 29 267 * 2, marked by a) a layer (38) of filler with high absorbency, b) a relatively thin top cover layer (37) of flexible porous material adhering to the filler layer (38) is fastened continuously along the circumference (36) of the insert or support (35), c) an impermeable, thin layer of plastic (39) on the back, which is adhered to the underside of the filling layer (38), d) a non-toxic, contact adhesive surface on the free Side of the rear plastic layer (39) 1 wherein the adhesive force of the adhesive is sufficient to attach the applied insert or overlay (35) to the inside of a The laundry, and the adhesive remains on the plastic cover (39) when used One or overlay (35) is withdrawn from the item of laundry, and e) a peelable cover (4o), the size of which is dimensioned so that it covers the non-toxic adhesive surface of the back layer (39) and an easy release of allows the adhesive. 109843/1061 2. insert or support according to claim 1, characterized in that the top layer (37) or the filling layer (38) a thermoplastic material formed in a continuous peripheral edge (36) of reduced thickness of the two layers (37, 38) can be solidified. 3 insert or overlay according to claim 1, characterized in that that the top layer (37) contains the thermoplastic material. 4. Insert or overlay according to one of the preceding claims, A, characterized in that the filler layer (38) consists of bleached cellulose wadding. 5 insert or overlay according to one of the preceding claims, characterized in that the top layer (37) consists of a fiber fleece. 6. insert or support according to any one of the preceding claims, characterized in that:. the plastic layer (39) there is a polyethylene film on the back. 7. A or support according to claim 6, characterized in that the thickness of the polyethylene film is the order of magnitude of ™ 12.5 u has. 8. A method for producing an insert or support for body contact, which is suitable for single use and is removably attached by self-adhesive to the inside of an item of laundry, characterized in that a relatively thin web of selected width from a supply of flexible porous cover material is supplied , 109843/1061 - Io - that from a supply of flexible, absorbent filler " a layer of substantially uniform thickness and substantially that selected width is fed is that from a supply of flexible, impermeable plastic a film with essentially this selected width is supplied, which is provided on its bottom side with a contact adhesive, which is a removable Protective film that supports the outer surface of the plastic film for adhering to the underside of the filler Adhesively coated is that one side of the filler to coincide with the free, coated with adhesive Surface and on the other hand with a surface of a cover sheet is brought to cover that the adjoining surfaces are connected by local pressing together to form a continuous edge, and that the connected layers are cut out at this edge, so that this edge is the uninterrupted outer one Forms boundaries of the entry or support. 9 · The method according to claim 8, characterized in that the sheet of cover material comprises a component of thermoplastic material, which coincides with the local compression heat is supplied, so that the thermoplastic material locally the compressed Penetrates the area of the filler layer, causing the compressed Edge has a reduced strength and increased density and is hardly absorbent. Io. Binding or support for single use, marked by several overlapping layers of essentially the same plan area, namely a) a cover (37) made of a relatively thin flexible porous material, 109843/1061 b) a filler (38) of absorbent material of substantially uniform thickness, c) a flexible plastic film (39) with an adhesive Binders for self-adherence to an item of laundry, and d) a protective film (4o) which can be removed from the adhesive is held, wherein the filler (38) adheres to the plastic film (39) and the cover (37) and the filler (38) uninterrupted along the rim des (36) of the plan shape, which is consolidated by the binding material, which is in the adjacent Edge areas of the cover (37) and the filler (38) penetrates. 11. insert or support according to claim Io, characterized in that that the binding material can be thermally influenced, contained in the material of the cover (37) and locally in the edge (36I of the filler (38) by local compression of the layers (37} 38) at the edge with the supply of heat is releasable. 109843/1061 Blank page