MXPA96004709A

MXPA96004709A - A diaper type calzon or sanita shoes

Info

Publication number: MXPA96004709A
Application number: MXPA/A/1996/004709A
Authority: MX
Inventors: Larsson Bjorn
Original assignee: Sca Hygiene Products Ab
Priority date: 1994-04-12
Filing date: 1996-10-10
Publication date: 1998-01-01

Abstract

The present invention relates to an absorbent article in the form of a sanitary napkin, which includes an elongated absorbent body (1) enclosed between two cover canvases (2, 3) including side portions (7-10). ) that on the opposite front and rear end portions of the absorbent body extend laterally beyond the body on both sides thereof. According to the invention, the opposite front and rear side parts (7, 9, and 8, 10, respectively) are joined together by a fastening element (11) which is fixed on one of the mutually opposite side parts a first resistant joint (12) and releasably and re-subjectively attached to the other side by means of a second joint (13) that is weaker than the first joint

Description

V - • "A DIAPER TYPE SHOES OR SANITARY SHOES" The present invention relates to an absorbent article in the form of a panty or sanitary panty diaper comprising an elongated absorbent body enclosed between two cover canvases that on the opposite front and rear portions of the absorbent body have lateral portions that extend laterally beyond the absorbent body on both sides of it. The so-called all-in-one diapers are being replaced to an even greater degree with calf-type diapers or so-called "trainers" for slightly larger children wearing diapers. These panty type diapers have a number of good peculiarities. They fit well in the user, are easy to put on and take off with the child in a standing position, sit firmly in place after they have been placed on a child and conform to the child's anatomy as the child moves, a comfortable way. In addition, panty-type diapers resemble conventional briefs and are easy to understand in the way they will be used, thus allowing in many cases that somewhat larger children who wear diapers on their own perform the same. simple operations required to put on the diaper. However, panties or "coaches" also have certain inconveniences. They are difficult to change, while the user is lying on their back and when changing the diaper it is required that any piece of clothing that is worn on the top of the diaper is removed or removed completely. A calf-type diaper can also not be used when wrapping and sealing in the same way as an all-in-one diaper. In addition, a dirty panty diaper containing excrement has the possibility of fouling the wearer when the diaper is removed. An object of the present invention is to eliminate the aforementioned inconveniences. According to the present invention, this object is achieved since an absorbent article in the form of a panty-type diaper or a sanitary brief is characterized in that the opposite parts of the front and back side are joined together through a fastener element that is attached to one of the mutually opposite side parts by means of a resilient joint or clamp and can be released from and re-clamped in the other side part by means of a second joint or clamp that is weaker than the first joint. According to a preferred embodiment of the invention, the second gasket is more resistant in the non-released state than when it is released after being released for the first time and includes a first holding means that is destroyed when the second gasket is released for the first time and a second fastener means that can be retained. The first fastening means comprises a welded joint or gasket and the second fastening means comprises a type of mechanical fastener and the mechanical fastener is of the fastening type. The fastener element preferably comprises a male part of a fastener similar to a self-grasping tape, that is, that part of a fastener that includes a large number of hooks projecting from a surface thereof, and the female part of the fastener of the fastener. Self-subjection comprises a non-woven material that forms a cover canvas of the article at the same time. The invention will now be described in greater detail with reference to the accompanying drawings, in which Figure 1 is a perspective view of a modality of a brief-type diaper of the invention; Figures 2 to 4 are schematic perspective views of the parts of the side parts and the fastener elements of a second, third and fourth modalities of the brief-type diaper of the invention; and Figure 5 is a schematic view from above of the side parts and fastening elements of a fifth embodiment of the calf-type diaper of the invention. Figure 1 is a perspective view of a first embodiment of a brief-type diaper of the invention. A brief-type diaper is intended to be worn in the same way as a pair of briefs, and is characterized by an elastic waist portion that can be lengthened so as to allow the panty diaper to be easily positioned above the wearer's hips when putting on and removing the panty diaper, and which is so elastic as to ensure that when worn. use, the diaper pant is securely held in place by the contraction forces exerted by the elasticization in the waist portion of the diaper pant. In order to meet these functional requirements while at the same time limiting the number of product sizes, the diaper pant will preferably have an elongation that is greater than 80 percent, ie, it will be possible to lengthen the waist portion to a degree that corresponds to 1.8 times the circumference of the waist part of the calf-type diaper, in a relaxed state. When the diaper is worn, the contraction force combined in the waist part, that is, the sum of the forces exerted by the elastic that is provided in the front part, the back part and the side parts of the diaper pantyhose. preference will exceed three N. The brief type diaper illustrated in Figure 1 is constructed in the same manner as the brief type diaper described in Swedish Patent Application Number 9200663-4, and includes an absorbent body 1 enclosed between the canvases 2 and 3 of internal and external cover, respectively. The inner cover sheet 2 is permeable to liquid and comprises, for example, a non-woven material compiled from polyethylene, polypropylene, polyester fibers or mixtures thereof. Viscose fibers can also be used. It is also conceivable to use a perforated plastic sheet, for example, a perforated polyethylene sheet for the inner cover canvas. The outer cover sheet 3 is impermeable to the liquid or at least hydrophobic and, for example, may comprise a polyethylene or nonwoven fabric that has been coated, laminated with polyolefins, in order to become impermeable to the liquid or at least less hydrophobic Due to aesthetic and psychological reasons, the outer cover canvas 3 may comprise two layers,. an inner layer impervious to the liquid and a layer of material similar to fabric placed on the outside of the inner layer. In this way, the user will be able to see and feel that the diaper is less plastic. When the outer cover canvas has this last construction, it is not necessary that the waterproof canvas have the same extension as the cloth-like canvas, but what may be smaller than that canvas, for example, the waterproof cover material the liquid may be omitted from the lateral parts of the diaper pant. The absorbent body 1 may contain a fluffy cellulose pulp with or without a mixture of particles of a so-called superabsorbent material and / or thermoplastic melt fibers. The absorbent body 1 may comprise one or more layers. The waist portion 4 of the brief type diaper illustrated in Figure 1 includes a plurality of elastic threads mounted in sequence each of which extends transversely around the circumference of the waist portion. A relatively wide elastic waist portion is formed in this manner. As will be understood, bands of elastic bands or the like can be used instead of elastic threads, or other elastically stretchable material, for example, an elastically stretchable plastic film, an elastically stretchable nonwoven material or a similar material can be used. Similar to a pair of briefs, the brief-type diaper illustrated in Figure 1 has a waist opening 5 and two leg openings 6 that are provided with an elastic for the leg in a conventional manner. The diaper is placed by inserting the user's legs through the leg openings 6 and lifting the diaper above the wearer's hip. The forces of contraction exerted by the elastic elements in the opening of the waistthat is, in the upper part of the waist part 4, preferably they are greater than the contraction forces acting on the rest of the waist part. This will ensure that the diaper pants remain in their intended position even when the absorbent body is full of urine. According to the invention, the front side parts 7, 8 of the panty-type diaper are joined to the respective opposite rear side parts 9 and 10 by means of a fastening band 11. In the case of the illustrated embodiment, the fastening bands 11 comprise Velero (R) -type bands of self-clamping types. That side of the strips 11 facing the outer cover sheet 3 includes a large number of sponge-like projections that are fastened in the meshes of the nonwoven material from which the cover canvas preferably comprises and forms a gasket or fastener. releasable or re-clamped between the bands 11 of the fastener and the respective side parts 7 to 10. Other types of self-retaining fastener means including male and female parts that have hooks and eyelets respectively can also be used of course, wherein the female parts are fixed to the outer cover cloth. In addition to being secured to the side portions by self-clamping clips, the bands 11 can also be welded or gummed on the rear and front side portions as shown in 12 and 13, respectively. The seals 12 holding the bands 11 in the respective rear side parts 9, 10 are extremely strong and capable of safely resisting the loads to which the diaper pant will be subjected during use. Preferably this gasket or fastener will be so strong that it can not be broken without breaking the band or the cover material and, therefore, can be considered as providing a permanent gasket in practice. The seals, or fasteners 13 that attach the bands 11 to the respective front side parts 7 and 8, are much weaker in that the aforementioned gasket and function to ensure that the self-fastening type fasteners placed between the front part of each part The front side and the corresponding part of the bands 11, are not released unintentionally during the normal use of the diaper pant. When diaper pants are used, these last joints are subjected to heavier loads as the diaper pants are placed on the wearer and, therefore, are sized to be able to absorb these loads. It should be mentioned in this respect that the fasteners of the self-fastening type of the illustrated embodiment of the diaper type of the invention, naturally also the welding or rubber gaskets 12, 13 are essentially subjected to shear forces which is the type of force against which fasteners of the self-fastening type are highly resistant and, therefore, the seals 13 are not absolutely necessary from a purely resistance aspect. However, it may be desirable to provide a gasket 13 when the panty diaper is manufactured, so as to ensure that the fastener provided by the self-fastening fastener does not break when the panty diaper is supplied and prevent the gasket from being self-contained. Subjecting is subjected to unintentional detachment forces when handling the diaper panties, having the self-restraint fastener low resistance to forces of this kind. Preferred due to these reasons is a mode in which the self-clamping joint is made secure or joined in the manner described above.

As indicated above, the strength of the solder or rubber seals 13 is not greater than the force at which the seals can be easily broken by the user without destroying the bands 11 or the other outer cover sheet 3. This allows the panty-type diaper to be removed and changed, without the need to completely remove the underpants, pants or worn garments to the outside of the diaper, breaking the solder or gummed joints 13 and releasing the self-fastening joint between the bands. 11 and the front side parts 7, 8 and in this manner allow the back or front part of the panty diaper to be inserted between the user's legs. A panty diaper can be replaced by breaking the weld or rubber gasket 1, and releasing the self-fastening fastener between the band and the front side portions, after which the front or rear part of the replacement panty diaper is inserted between the legs of the user. The mutually opposite front and rear side portions are then held together, re-attaching the released self-fastening clips, after which the panty diaper is raised to its final correct position in the same manner as a pair of underpants, unless otherwise specified. this has already been done when the self-fastening clamps are re-fastened.

Figures 2 to 5 are schematic views of the parts of the front and rear side parts and fastening elements of the brief-type diapers, these diapers differing from the diaper shown in Figure 1 only due to the configuration of the fastening elements and the unions or fasteners described above. Also used to identify the side portions in Figures 2 to 5 are the same reference numerals as those used in Figure 1. The fastening element 14 of the embodiment of Figure 2 comprises a strip of a flexible and elastic material, preferably a plastic material that is welded or gummed in the side part 9. That part of the strip that overlaps its respective side part 7 has an elongated and projecting ridge 15 extending outwards, which extends parallel to the lateral edge of the side part 7 and which has co-operation with a groove having a complementary shape to the rib 15 on a strip 16, the latter strip being secured securely on the side part 7 in an appropriate manner. The flange and groove together form a releasable and re-attachable fastener or connection between the strip 14 and the side part 7. The strip 14 also includes a breaking weakening in the form of a groove 17 extending parallel to the edge 7 of the side part at some distance from the side edge of the part of the strip 14 that overlaps the side part 7. That part of the strip 14 that lies between the lateral edge and the breaking weakening 17 is fixedly attached to the underlying strip 16 in a certain appropriate manner. Before breaking, the part 15 containing the flange of the strip 14 that emerges from the strip 16, the releasable fastener or attachment is held mainly in the same manner as in the first described mode. According to a variant, the strips 14 and 16 can be molded as a one-piece structure, wherein the weakening of the break will function as a hinge when the strips 14, 16 are folded together to obtain the configuration shown in Figure 2. Figure 3 illustrates an additional embodiment that differs from the embodiment illustrated in Figure 2, since the fastening element, which also in this case comprises a plastic strip 18, is fixed to the inside of the panty diaper instead of to the outside thereof, as it is the case of the modalities previously described. That part of the strip 18 that overlaps its side portion 8 includes a row of projections 19 that have coercion with a recess of complementary shape that is formed in a strip 20 that is firmly connected to the side portion 8. The tips of some or all of the projections 19 are joined in the lower portions of the respective recesses by means of an appropriate weak connection such as an easily separable welding or rubber joint. In the case of the modality illustrated in Figure 4, the fastening element in the form of a strip 21, is firmly attached to the inner surface of the side part 9 and is releasably joined to the external surface of the side part 7. The strip 21 also includes a breaking weakening in the form of a row of perforations 22 delimiting a part of the outer edge of the strip, the edge part being welded or gummed in the covering material of the side part 7. The strip 21 is also joined to the side part 7 by means of a releasable or resastenable joint 23 which in this specific case is formed by a coating with adhesive. In the case of the embodiment illustrated in Figure 5, the side parts 7 and 9 overlap one another and the fastener element that lies between these parts comprises a self-fastening strip 24, one side of which has elements 25 and 25 which are not shown in FIG. similar to outwardly projecting sponges that couple the side part 7, the outer cover fabric whose side part is made of a non-woven material and therefore forms the female part of the self-fastening bra, and the opposite side from this strip 24 is glued or welded firmly to the side part 9, as shown at 26. The self-fastening joint also in this case can be reinforced with a welding or rubber gasket easily releasable in the manner described with reference to the Figure 1. Even though the embodiments of the above-described and illustrated embodiments have been directed only to brief-type diapers, it will be understood that the invention can also be applied to sanitary briefs, that is, ca lzones where absorbent bodies are included to absorb menstrual fluids and light incontinence discharges. It will also be understood that the exemplification embodiments illustrated and described may also be modified in many ways within the scope of the invention. For example, other types of resilient fasteners may be used than those illustrated, for example, fasteners with buttons and eyelets. The invention, therefore, is restricted only by the scope of the following claims.

Claims

R E I V I N D I C A C I O N E S:

1. An absorbent article in the form of a sanitary napkin that includes an elongated absorbent body (1) enclosed between two cover canvases (2, 3) that include side portions (7-10) that in the front end portions and rear of the absorbent body extends laterally beyond the body on both sides thereof, characterized in that the mutually opposite front and rear side portions (7, 9 and 8, 10, respectively) are joined together by means of a fastener (11). 14; 18; 21; 24), is fixed to one of the mutually opposite side parts by a first resilient joint or fastener (12; 26) and which is releasably and re-clamped in the other side part by means of a second seal or clamp (13; 15; 17; 19; 22, 23; 25) that is weaker than the first joint.

An article according to claim 1, characterized in that the second gasket (13; 15; 17; 19; 22, 23; 25) is stronger in its non-released state than when it is in the re-fastened state after being released for the first time.

An article according to claim 2, characterized in that the second joint includes a first subjection (17; 22) that is destroyed - K when the second gasket is opened for the first time and that it also includes a second re-clamped gasket (15; 19; 22; 25).

4. An article according to claim 3, characterized in that the first seal of the second fastener comprises a weld; and in that the second seal of the second fastener consists of a mechanical seal (15; 19; 25).

5. An article according to claim 3, characterized in that the first seal of the second fastener comprises a gummed joint; and in that the second subjection consists of a mechanical seal (15; 19; 25).

6. An article according to any of the preceding claims, characterized in that the mechanical seal (25) is a self-fastening type gasket.

An article according to claim 6, characterized in that the fastening element (11; 24) comprises the male part of a self-fastening fastener similar to a band, that is to say, that part of this fastener that includes a large number of hooks (25) projecting from a surface thereof.

8. An article according to claim 7, characterized in that the female part of the self-fastening fastener comprises a non-woven material (3) It forms a cover canvas of the item at the same time.