HUT69484A - Pant with absorben pad - Google Patents

Abstract

The preferably multi-layer exchangeable disposable insert (22) of the multi-reusable, washable underpants (12) for slightly to severely incontinent children or adults comprises at least one absorbent material. There is fastened unreleasably in the appropriately cut-out or shaped, preferably deep-drawn crotch region of the underpants (12) an anatomically preformed crotch basin (14) which corresponds to their size and which serves as a waterproof supple outer layer for an exchangeable fluid-permeable insert (22) designed as a three-dimensional absorbent body (24) shaped according to the anatomy. This disposable insert (22) matches the body weight, sex and/or the degree of incontinence. The inserts (22) are ecologically sound cheap products with appreciable wearing confort which are inserted into the crotch basin (14) without further aids and which afford increased safety against escape and slipping out of place.

Description

The present invention relates to a reusable, washable panty with a replaceable, fluid-permeable, disposable pad containing at least one absorbent material for minor or severe incontinence in children or adults.

Incontinent persons who need to use pads containing absorbent material rely on external moisture protection to protect their underwear and outer clothing from wetting. One of the most common applications of this moisture protection is underpants or diapers that are impervious to liquids, or made only permeable to moisture. Sheet-shaped, mostly rectangular pads with incisions on their long sides are also used with absorbent pads for continuous or sudden outflow of body fluids. The body-contacting surface of such an absorbent pad is fluid-permeable and the surface away from the body is covered with a liquid-insulating layer.

In order to make these absorbent pads as light, thin and soft as possible, they use high absorbent chemical absorbents. Particularly important in this respect are the so-called. superabsorbents, in particular polymers with high absorption activity, which are commercially available and are capable of binding a quantity of urine or saline water corresponding to several times their own weight. They form a gel that remains stable even under pressure. In addition, it is known that absorbent pads have water retention, fluid pressure • ·

- Enhanced by heat bonding to prevent it from leaving under the influence of 3. For this purpose, a cellulosic fibrous material is mixed with an additional thermoplastic fibrous material which acts as a hot melt adhesive at elevated temperatures at certain points.

Finally, pads having a flexible shell-shaped outer moisture barrier layer are known. This shell is a container that provides additional safety, especially for adults who suffer from sudden urinary obstruction. The shell is usually provided with a securing strap which is used to attach the body to the body. attachable to the underwear. The outer shell of the waterproof shell may be attached to the undergarment by other means known in the art, e.g. with adhesive strips disposed longitudinally on the outer surface of the shell, which are provided with detachable protective strips. The disadvantage of these shell-shaped incontinence pads with moisture insulation is that they do not decompose and therefore cannot be replaced every time. For example, they should not be disposed of in toilet bowls, but should always be placed in a waste container, which is often open. Thus, people with severe incontinence, including faecal excretion, can easily find themselves in an awkward position.

A further disadvantage is that due to its flat, practically two-dimensional shape during pull-up, the clamshell removably attached to the underwear cannot provide a reliable guarantee against leakage of urine, or it can easily slip out of its ideal position during sports activities. As casual wear

- While wearing 4 extremely popular short-stalked clothes during sports activities, the shell can even become visible.

US-A-4,568,341 describes numerous variants of longitudinally curved pads for slightly incontinent persons; they are placed in the underwear and secured to a glued or sewn-in liquid-permeable pad. This washer is made up of two layers and is located around the crotch in the underwear. The benefit of this reusable, washable panty and disposable, replaceable liner is that you do not need to apply a relatively thick (30-50 μιη) waterproof layer to each liner. On the other hand, however, complex operations are required and, as before, there is little security against leakage.

It is an object of the present invention to provide panties with a pad of the type mentioned in the introduction, which provides a slightly more comfortable wear, greater safety and easier placement of the pad when replacing the pad, individually and of all ages and genders. In addition, padded briefs are environmentally friendly, trouble-free and inexpensive.

The object is achieved by disposable pads having a three-dimensional, shape-free absorbent body which is weight, sex and weight. corresponding to the degree of incontinence, the absorbent body being waterproof, elastic and disposed so as not to slip out of its place in the undergarment in an appropriately cut or formed incision pad corresponding to the body mole of said body. Preferably, the undergarment is formed by deep drawing at the region of the pad.

The pre-formed liquid-impermeable shell pad recess is therefore indispensable because it is not a disposable pad, as is currently known, but a lingerie that can be washed and re-worn after use. This offers both economic and other important benefits:

- The incontinent person can easily get rid of the used deposit and replace it because of its small volume so that he can take it with him,

- the insole is placed in the footbed recess and is not releasably secured to the undergarment cut out or deep drawn, and cannot slip out of use even during intense sports activities.

An incontinent person with an insoluble fixed foot pad may not only wear all types of conventional underwear, such as. bikini or short or. long leggings, but also pajamas, swimwear and the like, and the step pad recess can be properly covered.

Traditional or special underwear, eg. they are mainly made of elastic cotton and can be made by deep drawing instead of cut-out. As is known in the art, the region of the undergarment pad can be molded with heat to a shape corresponding to the pad recess by means of heat. After relieving the pressure, the undergarment has a molded portion that is appropriately shaped to accommodate the pad and recess.

«•«

Compared to US-A-4,568,341, the present invention has the following advantages:

The absorbent body is of a constant shape and three-dimensionally shaped, and preferably has an internal surface adapted to the gender-specific anatomical features. The dimensions are based on body weight or weight. corresponding to the degree of incontinence.

From the manufacturing point of view, the absorbent body of the present invention is first formed in its final form, including any cut-out or recess. The absorbent body is then heat treated, the plastic fibers are melted and, after cooling, they form many bonding points with the cellulosic fibers.

- As the step pad recess is not pressed flat when the underwear is pulled on, there is no risk of leakage and no need for locking means. The absorbent body only needs to be inserted, no further action is required, so that the pad does not slip off during wear.

The step pad recess is secured to the undergarment by methods known per se, such as by sewing or gluing, in particular by using thermoplastic adhesives.

The pulp fibers are paper or paper. is produced from cotton waste, which is particularly beneficial from an economic and environmental point of view. The waste is properly comminuted with a shredder grinder to form fiber flakes and thoroughly mixed with 3 to 12% by weight of man-made fiber.

The preformed insole inset fixed to the underwear forms such a recess and is at most moisture-permeable, preferably made of soft plastic, mainly polyurethane or polyethylene, or of a material impregnated with plastic. The foamed plastics used in the manufacture of shells are only of a certain quality because of the frequent washing of the underwear. The soft, hydrophobic materials ensure a comfortable fit of the three-dimensional insert.

Particularly severely incontinent persons, or persons lying in bed permanently unable to control their urine or stools, are forced to wear underwear that can be opened and closed by means known in the art for pulling up and removing, but also for changing the liner. closing by nurse. In such a case, the easy-to-open step pad, well secured to the multilayer underwear, is particularly important.

Preferably, the three-dimensional absorbent body comprises cellulosic fibers attached to thermoplastic fibers at certain points and superabsorbents evenly distributed therebetween. Absorbent bodies are manufactured on special equipment.

The panty liner, which is preferably formed as a multi-layer, three-dimensional absorbent body, is usually covered with a fluid-permeable, elastic film on both sides. It is possible, but not necessary, to have a softer, in contact with the body, layer which is stiffer and more resistant to deformation during use. Preferably, the layers have a thickness of 1-5 µm, which is definitely thinner than hitherto, even if the layer further away from the body is waterproof during use.

The absorbent body comprises cellulose and / or cellulose. outside cotton fibers approx. 1.5 to 18% by weight, preferably ca. 6% by weight of plastic fiber and approx. It contains from 10 to 15% by weight of superabsorbent.

The plastic fibers used are preferably composed of polyolefin or polyester. Examples of materials for plastic fibers are copolymers of polyethylene, polypropylene, ethylene and propylene, and copolymers of propylene and butylene.

Plastic fibers mixed with cellulose-containing fibers generally have a diameter of 1-40 µm, most often 5-20 µm.

It has been particularly advantageous to blend cellulose-containing fibers with fibrous polyethylene. For example, a commercially available DUPONT product, marketed as PULPLUS, consists of fine fibers having a thickness of from 1 to 20 µm, which are thermally bonded to the cellulose fibers at several points. In addition to being very small in diameter, these plastic fibers include high strength, high orientation, high specific surface area, easy melting and machining, chemically inert, environmentally friendly and acceptable goods.

Absorbent bodies made from a fiber blend and containing heat-stabilized plastic fibers also have other advantageous properties in addition to their anatomical fit on the inner surface:

- They can eliminate the use of a whole range of semi-finished products such as: waterproof outer covering, polypropylene web layer as absorbent body liner, heat

- 9 softening adhesives as binder, tape to fix to the hips, waterproof film to prevent leakage at the waist and elastic yarns to prevent leakage at the foot area.

- Increased fluid retention.

- Increased retention capacity due to superabsorbent powder.

- Increased formal stability while maintaining flexibility.

- Increased strength before and after wetting.

The thermoforming of the plastic fibers at certain points is preferably carried out at a temperature just below the ignition point of the cellulose, i.e. 160-220 ° C. Attention is drawn to the Applicant's Swiss patent specification, which covers both the process and the device.

The cellulosic fibers of the absorbent pad are preferably mixed with not only plastic fibers but also with a chemical absorbent material, which is preferably superabsorbent. The absorbent material, preferably the superabsorbent, may optionally be distributed in the pulp after the heat treatment, as uniformly as possible.

The degree of absorption of the superabsorbent is mainly dependent on its particle size, which means that, for relatively small particles, the total surface area of the superabsorbent is larger, so that absorption or gel formation occurs much faster. Adjusting the absorbance of a given absorbent layer for different superabsorbents, respectively. various absorbents of superabsorbents.

For example, the following products are used as superabsorbents:

Aridall 1125 manufactures: Chemdal, USA Drytech 510 manufactures: Dow Chemical, USA PR 9910 S manufactures: Floerger, USA FAVOR 922 SK manufactures: Stockhausen, Germany

If an absorbent contains thermoplastic fibers such as. fibrous polyethylene (see, e.g., US-A-4,458,042), there is no need to add additional plastic fibers. In this case, the plastic fibers in the absorbent are sufficient to properly solidify the fabric during heat treatment.

The invention will be described in more detail by way of example only, with reference to embodiments of the accompanying drawings. The

First

In FIG. 4a, the underwear of the present invention is trained

5th

Figure 3 is a sectional view of the step depression depression, the section depression of the step depression shown in Figure 1 with a insert, the insert for mildly incontinent persons, the section IV-IV of Figure 3, the insert for persons with severe incontinence,

6th

Figure 5 is a sectional view taken along the line VI-VI in Figure 5, a perspective view of a napkin for severely incontinent persons in the figure, a drawing of a napkin manufacturing program, and a napkin with a multilayer absorbent body;

Figure 10 is a multilayer underwear, a

Figure 11 is a perspective view of a carton for sales purposes.

As shown in Figure 1, the undergarment 12 tucked into the manikin 10 has a humidity-impermeable padding recess 14 in the padding portion, which is anatomically preformed. The cutout 18 (Fig. 2) corresponding to the cavity recess 14 is removed from the cavity 12 of the underwear. The edge of the opening of the cutout of the undergarment 12 and the edge of the recess of the crotch 14 are inextricably fused with one another.

Fig. 2 is an enlarged and sectional view of the pedestal portion of the manikin 10. The underwear 12 rests on the legs 16 of the manikin 10. The cutout 18 in the panty liner 12 is indicated by a dashed line. This dashed line also indicates that in another version of the undergarment 12, the cavity pad recess 14 is formed by deep drawing in the cuff, thereby forming a cavity for the cavity pad cavity 14.

The portion 20 which connects the cavity recess 14 with the cut-out 18 of the undercut recess of the underwear 12 is continuous and, as already mentioned, is sewn or threaded. in the shape of an adhesive.

A pad 22 is disposed in the cavity recess 14, consisting of a three-dimensional absorbent body 24, a body contact layer 26, and a layer 28 away from the body.

Underwear 12 is provided with elastic strap 62 at the thighs on both sides. A continuous fluid sealing flange 44 (FIGS. 5-7) may extend along the thigh and be suppressed by the elastic band 62 ···· · · · · · · · · · · · · · · · · · · · · · · · · ·

In Figure 2, it is clear that by pulling on the underwear 12, the insert 22 rests tightly against the body and is secured to the crotch recess 14, which is not deformed and not pressed flat. The insert 22 is easy to replace and the preformed waterproof step pad recess 14, which is an integral part of the underwear 12, retains its full effect even after the new insert 22 has been inserted.

3 and 4, a longitudinal recess 30 is formed in the center of the insert 22. It is relatively narrow and extends from the body to a depth of 28 layers. For a male incontinent person, this longitudinal recess 30 is made longer, indicated by 32 dashed lines.

If the body fluid is suddenly discharged, the longitudinal recess 30 is capable of receiving and distributing urine without being immediately absorbed. Absorption occurs only gradually. The absorption capacity can be increased by forming a plurality of approximately parallel longitudinal recesses 30.

The insert 22 is placed in a properly formed moisture impermeable cavity recess 14 (Fig. 2). A layer 28 distant from the body has a fluid-insulating property, in contrast to the layer 26 which is close to the body. However, the layer 28, which may be omitted or may be moisture permeable, may be formed with a thickness of 1 to 5 μιη and applied by coating or coating. This has the advantage that the pads 22 do not need to be provided with a relatively thick disposable outer layer which also makes it difficult to dispose of them as waste, which is environmentally significant. To the two ends of the 22 insert «·· *

13 two tabs 34 are connected to facilitate replacement of the insert 22.

In the embodiments of Figures 5 and 6, a longitudinal recess 30 is also provided in the body 22 of the three-dimensional absorbent body 22. However, it is no longer designed as a longitudinal straight trench as in the previous two figures. In the front portion of the pad 22, three recesses 36 are formed in the same arrangement as the fingers, with tissue protrusions 42 disposed therebetween. The central recess 36 corresponds to the longitudinal recess 30. 30 or The larger number of recesses, with the increased absorption surface, allows for a greater volume of suddenly discharged body fluid to be absorbed continuously.

In the rear portion of the pad 22, the recess 30 widens and forms a ridge 38.

The longitudinal recess 30, together with the small recesses 36 and the flushing 38, is coated with an easily removable waterproofing layer 40. This waterproofing layer 40 is mechanically pressed into the openings after the small recesses 36, the longitudinal recess 30 and the flushing 38 have been formed. The wide, continuous fluid sealing flange 44 is retained.

During compression, the easily removable waterproofing layer 40 is joined at some points to the body-contacting layer 26. The easily removable waterproofing layer 40 can therefore be gripped and easily detached from the liner 22 at the wide liquid sealing flange 44.

The wide liquid barrier flange 44 extending from the insert 22 of the easy-to-remove waterproofing layer 40 is suitably water-repellent. This effectively protects the underwear 12 from dirt (Figures 1 and 2).

If the person is severely incontinent, 38 flushing may result in feces.

At this time, the easily removable waterproofing layer 40 is easily detachable by its liquid sealing flange 44 or tabs 34 (not shown) and can be discarded into the toilet bowl. The remaining insert 22 may be disposed as described above. This provides an invaluable benefit to the incontinent person in reducing the number of operations required and minimizing the risk of litter contamination and eliminating the need to dispose of faeces in a waste bin, which often leads to hygiene problems. It may even be mentioned that the water disintegrating pads 22 may be disposed of in the toilet bowl.

Alternatively (not shown), the wide fluid sealing perimeter 44 may be formed as a unit with a waterproofing layer 28 away from the body and, in interaction with the elastic band 62 of Figure 2, provide an effective barrier to moisture movement. In this case, triple the protection against moisture leakage:

a liner 28 distal to the body;

- the step pad recess 14;

a seal formed by the fluid sealing flange 44 and the elastic band 62.

Figure 7 illustrates a three-dimensional embodiment of the absorbent body 24 for infants and doubly incontinent subjects. The substantially smaller anterior portion 48 of the absorbent body 24 has four deeply formed recesses 36 including protrusions 42 therebetween. The large volume flushing 38 is located in the rear portion 50. The widely protruding liquid sealing rim 44 of the rear portion 50 is covered with an easily removable pressed cloth 40 which is waterproof and easy to pull off. In a preferred embodiment, the fluid sealing flange 44 is formed on each side, that is, on the side and around the front portion 42 as well. If a large amount of urine suddenly flows towards the absorbent body 24 in the direction of arrow 52, it will immediately be distributed in the wells 36 and the flushing 38. The liquid is then absorbed as indicated by arrows 54.

Figure 8 is a graphical representation of an extract manufacturing program insert. The volumetric ratio G of the longitudinal recess 30, the small recesses 36, and the absorbent body 24 flush 38 can be read on the abscissa and the size of the insert 22 on the ordinate K. It has been assumed from the outset that the outer dimensions of the pad 22 are approximately the size of the body.

The insert 22a is designed for slightly incontinent infants and is provided with only one longitudinal recess 30.

The insert 22b is designed for a slightly incontinent, large person, and the large insert 22b also has a single longitudinal recess 30.

The insert 22c is designed for a relatively small female, and the longitudinal recess 30 forms a ridge 38.

The pad 22d is designed for a moderately incontinent child, and the longitudinal recess 30 formed at the front thereof undergoes a flushing 38 at the rear.

The pad 22e is designed for infants or severely incontinent toddlers, and has a longitudinal recess 30 and one • ·

- 16 38 consists of flushing.

The pad 22f is suitable for a severely incontinent adult in accordance with Figures 5-7. FIGS.

Each insert in the manufacturing program can be displayed as shown in Figure 8.

The pad 22 of Figure 9 comprises an absorbent body 24 formed of layers. The top layer 24a, which is covered by the body contact layer 26, contains less amount of absorbent material than the top layer 24b. The underlying layer 24c contains most of the superabsorbents. The superabsorbent content in the layers 24d and 24e is then reduced again. In one embodiment, the layers 24c-24e located below layers 24a and 24b alternate between lower and lower layers. higher absorbent content. Further details on the laminated absorbent bodies 24 are to be found in Swiss Patent Specification. In all of the embodiments of Figure 9, the leaking moisture is very low, so that the insert 22 always feels dry.

2-7. and the pads 22 shown in FIGS. 9 are all environmentally friendly, inexpensive products that provide the incontinent with a more comfortable wear and a greater sense of security. The pads 22 consist of a pleasant, tightly fitting body contact layer 26, a soft absorbent body 24, and a preformable but further away body layer 28.

In addition to the otherwise conventional, mainly elastic, cotton undergarments, which are cut or deeply drawn in the step pad, the type known from FIG.

• ·

They can also be used as multiple undergarments 17 for insoluble fastening of the step insert recess 14 forming the recess 22 for receiving the insert. The outer layer 58 is made of elastic cotton and the inner layer 60 is made of cotton. The femoral shaft is provided with an elastic band 62 which effectively seals the wide liquid sealing flange 44 as shown (Figures 5-7). The 56 multi-lingerie adhesive fasteners provide quick and easy locking and fastening. opened.

The cartons 64 for sale, shown in Figure 11, with tabs 66 and a tab 68 for opening are particularly advantageous to the manufacturer, the trader and the customer. Removing the tear tape 68 allows the lid to be lifted and then closed again. The box contains a pair of underwear with 14 step pad recesses and a relatively large number, e.g. 2448, with 22 inserts.

The 64 cartons for sale are suitable for display, transport and storage in the smallest possible space, in a hold-on shopping bag, and can be individually removed for easy insertion into any handbag.

Claims (11)

Claims Reusable, washable underwear with a replaceable liquid-permeable disposable pad containing at least one absorbent member for mild to severe incontinence in children or adults, characterized in that the disposable pad (22) is a three-dimensionally shaped, non-absorbent pad. body (24), which corresponds to body weight, sex and sex. the degree of incontinence, and which absorbent body (24) is disposed in an anatomically preformed step pad recess (14) corresponding to the size of the body, which is properly cut out or formed in the undergarment (12), which body is a waterproof, elastic material. Underwear according to claim 1, characterized in that the step pad recess (14) is deep-drawn. Underwear according to claim 1 or 2, characterized in that the three-dimensional absorbent body (24) consists of a mixture of cellulosic fibers, thermoplastic fibers and superabsorbents evenly distributed therein. 4. Underwear according to any one of claims 1 to 3, characterized in that the three-dimensional absorbent body (24) consists of several layers, wherein the inner layer or layers preferably contain more superabsorbents than the outer ones. 5. Underwear according to any one of claims 1 to 3, characterized in that the three-dimensional absorbent - 19 fibrous (24) cellulosic fibers from waste paper or paperboard. They are made of cotton and are preferably attached at certain points to polyethylene fibers. 6. Underwear according to any one of claims 1 to 3, characterized in that the step pad recess (14) is made of soft plastic, preferably polyurethane or polyethylene, or of a material impregnated with plastic. 7. Underwear according to any one of claims 1 to 4, characterized in that the three-dimensional absorbent body (24) is covered with elastic layers (26, 28) on both sides, and in use the layer (26) in contact with the body is softer and more distant (28). stiffer. 8. Underwear according to any one of claims 1 to 4, characterized in that the layers (26, 28) covering the three-dimensional absorbent body (24) have a thickness of 1 to 5 μπι, and the absorbent body (24) is preferably 1.5 to 18% by weight, in particular approx. 6% by weight of plastic fiber and approx. It contains from 10 to 15% by weight of superabsorbent. 9. Underwear according to any one of claims 1 to 4, characterized in that the insert (22) is provided with a wide continuous fluid-insulating flange (44) which interacts with an elastic band (62) placed on the underwear (12), which forms an insulation at the thigh. 10. Underwear according to any one of claims 1 to 4, characterized in that the three-dimensional absorbent body (24) is provided with at least one longitudinal recess (30) on the side of the body in contact with the body which is flushed (38) in one longitudinal direction of the absorbent body (24). and protrusions (42) between tissue recesses (30). Underwear according to claim 10, characterized in that the three-dimensional absorbent body (24) is covered with a pressed, easily removable waterproofing layer (40) on the side of the body in contact with the body (38), which is soft, waterproof and pressed into the longitudinal deep (30), in the small recesses (36) and in the recesses (38), and with ears (34), preferably at least three