TW201410222A - Absorbent article - Google Patents

Abstract

The invention is related to an absorbent article including: a main body configured to have a front portion, a rear portion and a crotch portion therebetween along the longitudinal direction of the main body, and have a inner side and a outer side in the thickness direction, with a depression recessing from the inner side toward the outer side in the crotch portion; and a insert detachably attached to the crotch portion of the main body, wherein the insert is configured to have friction element interacting with the depression for positioning the insert. When replacing the absorbent article, the user can only replace the insert without replacing the whole absorbent article.

Description

Absorbent article

The present invention relates to an absorbent article, and more particularly to an absorbent article having a removable crotch insert.

Various absorbent articles such as diapers, diapers, incontinence guards and the like are widely used in various incontinent adults and children for absorbing body exudates such as blood, urine, sweat, feces and the like. In the case of a diaper, as an absorbent article, it is generally divided into a front portion, a rear portion, and a crotch portion between the front portion and the rear portion. When worn, the urine is placed between the wearer's legs, with the front portion resting against the front of the wearer's body, the back portion resting against the back of the wearer's body, and the ankle portion being located at the wearer's ankle. These diapers can be worn with or without a belt. In addition, diapers are usually disposable and will be discarded as a whole.

However, in the case where there is not much body discharge, even if the diaper does not reach its maximum absorption amount, it is necessary to change the diaper for comfort after a long time of wearing. At this time, only the ankle is often contaminated, while the front and rear are still clean. If the used diaper is discarded as a whole, it will inevitably result in waste and is also unfavorable to the environment.

In view of cost saving and environmental considerations, there is a need for a diaper having a detachable crotch portion, which requires no replacement of the entire diaper when the diaper is changed in a small amount of absorption, and only needs to replace the contaminated crotch portion. Simultaneously Its replacement should be convenient and quick.

Accordingly, it is an object of the present invention to provide an absorbent article which solves the above problems in the prior art, which is capable of replacing only a part of the absorbent article at the time of replacement, without the need to completely discard the absorbent article, thereby saving cost and facilitating cost. surroundings.

The above object is achieved by providing such an absorbent article, comprising: a body comprising a front portion, a rear portion, and a crotch portion between the front portion and the rear portion in the longitudinal direction and having an inner side in the thickness direction On the outer side, the body has a recessed portion recessed from the inner side to the outer side in the crotch region; and an insert detachably coupled to the crotch portion of the main body, the insert having a friction element interacting with the recessed portion Position the insert.

Preferably, the friction element is permanently fixed to the insert.

In particular, the recess is a slot extending in the longitudinal direction of the body into which the friction elements of the insert are inserted.

According to another aspect, the recess is a plurality of holes arranged in a regular manner, and the friction element of the insert has a plurality of protrusions that can be inserted into the plurality of holes.

Preferably, the cross-sectional shape of the hole and the protrusion is circular or square.

Preferably, the shape and size of the groove correspond to the shape and size of the friction element.

According to still another aspect, the body has a top layer constituting the inner side, a bottom layer constituting the outer side, and an absorbing layer therebetween, the insert being in contact with a top layer of the main body.

Preferably, the top layer of the body and the friction element are both high friction Made of materials.

Wherein the length of the groove in the longitudinal direction of the body is larger than the length of the friction element, the difference therebetween is 2-20 mm, preferably 2-10 mm, and the width of the groove is larger than the width of the friction element The difference therebetween is 5-75 mm, preferably 5-50 mm.

With the diaper assembly of the present invention, the contaminated insert is removed from the diaper body when replacement is required, and then the friction element of the new insert is inserted into the groove of the diaper body without the need to replace the entire diaper assembly, thus greatly The cost of the diaper is saved and the replacement is convenient. Moreover, the insert can follow the ankle well as the wearer's body moves. Additionally, a diaper body can be used with inserts having different sized friction elements, increasing the flexibility of use of the diaper assembly.

1‧‧‧ diaper body

2‧‧‧Inserts

3‧‧‧ slots

3’‧‧‧ hole

4,22‧‧‧ friction elements

5‧‧‧ top

11‧‧‧ Front

12‧‧‧ Rear

13‧‧‧裆

14‧‧‧ inside

15‧‧‧ outside

21‧‧‧Insert body

23‧‧‧ Protrusion

31‧‧‧ Groove

H‧‧‧ Depth

T‧‧‧ thickness

X, X’‧‧‧Width

Y, Y’‧‧‧ length

The above and other advantages and features of the present invention will become more apparent from the description of the accompanying drawings in which <RTIgt; 1 is a plan view of the diaper assembly taken along line AA; FIG. 3 is a plan view of the diaper body after removal of the insert; FIG. 4 is a plan view of the insert employed in the diaper assembly of FIG. A schematic plan view of a variation of the diaper body in the diaper assembly according to the first embodiment of the present invention; FIG. 6 is a schematic cross-sectional view of the diaper insert used in conjunction with the diaper body shown in FIG. 5; A diaper assembly according to a second embodiment of the present invention is shown in FIG. 2 A similar cross-sectional view.

Embodiments of the present invention are described in detail below with reference to the accompanying drawings, wherein the same reference numerals represent the same parts. The drawings are not to scale, and some are exaggerated to more clearly illustrate the construction of the invention.

In the following embodiments, the configuration of the absorbent article of the present invention will be described by taking only the diaper assembly as an example. However, this does not mean that the invention is limited to the diaper assembly. Instead, the absorbent article may also be a diaper, an absorbent pad, an incontinence guard or the like.

1 shows a diaper assembly in accordance with a first embodiment of the present invention, and FIG. 2 shows a cross-sectional view of the diaper assembly of FIG. 1 taken along line A-A. As shown, the diaper assembly includes a diaper body 1 having an inner side 14 and an outer side 15 in a thickness direction, and a diaper insert 2 detachably coupled to an inner side 14 of the diaper body 1. In use of the diaper, the inner side 14 is the side that is adjacent the wearer's body and the outer side is the side that is away from the wearer's body.

The diaper main body 1 includes a front portion 11, a rear portion 12, and a crotch portion 13 therebetween in the longitudinal direction. The insert 2 is connected in the region of the crotch portion 13. The diaper body 1 is comprised of a liquid permeable topsheet, an absorbent layer and a liquid impermeable backsheet, wherein the liquid permeable topsheet constitutes the inner side 14, and the liquid impermeable backsheet forms the outer side 15, the absorbent layer for absorbing body exudates.

The top layer of the diaper body 1 is a layer that is in contact with the wearer's body during use. Therefore, it should be soft, non-irritating and comfortable for the skin, and body fluids should be able to pass through it unimpeded. The top layer may be constructed of a nonwoven material such as spunbond, meltblown, carded, hydroentangled, wet-laid, etc. to make. Suitable nonwoven materials include natural fibers such as wood pulp or cotton fibers, rayon fibers such as polyester, polyethylene, polypropylene, viscose, and the like, or mixtures of natural and man-made fibers. Other examples of materials suitable for the top layer are porous foams, apertured plastic films, and the like.

The bottom layer of the diaper is the layer that is furthest from the wearer's body when in use. To protect the wearer's clothing from contamination when the user wears other garments on the outside of the diaper, it should be liquid impermeable, but preferably breathable (ie, vented) to allow air and steam to enter and exit the diaper. It can reduce the warm and humid conditions that occur in the diaper. Typically, the bottom layer is a liquid impermeable material such as a plastic film such as a polyethylene or polypropylene film, a nonwoven material coated with a liquid impermeable material, a hydrophobic nonwoven material that blocks liquid passage therethrough, or a plastic film and a nonwoven material. Laminate. Examples of breathable backing materials are porous polymeric films, nonwoven laminates of spunbond and meltblown layers, laminates of porous polymeric films and nonwovens.

The absorbent layer of the diaper is used to receive and contain liquids and other bodily fluids. Therefore, it typically includes an absorbent material. Examples of ubiquitous absorbent materials are cellulosic fluff pulp, tissue layers, superabsorbent polymers (so called superabsorbent SAP), absorbent foams, absorbent nonwoven materials and the like. It is common to combine cellulosic fluff pulp with a superabsorbent in an absorbent layer.

The top and bottom layers typically have similar extensions in the diaper plane, while the absorbent layer has a slightly extended extent. The top layer and the bottom layer are joined to each other around the periphery of the absorbent layer such that the absorbent layer is enclosed within the cover formed by the top layer and the bottom layer. The absorbent layer is centered in the diaper. The top and bottom layers can be bonded to each other by any means known in the art such as ultrasonic welding, heat welding or gluing. Engage.

Figure 3 shows a plan view of the diaper body 1 after the insert 2 has been removed. A recessed portion in the form of a groove 3 is provided in the crotch portion 13 of the diaper main body 1. In the present embodiment, the groove 3 is a rectangular groove elongated in the longitudinal direction of the diaper main body, having a length Y along the longitudinal direction of the diaper main body and having a width X. . As shown in Fig. 2, the groove 3 is recessed from the top layer toward the bottom layer in the thickness direction of the diaper main body 1, but does not extend at least through the bottom layer. Specifically, in the absorbent layer of the diaper main body 1, a groove 31 is recessed from a side adjacent to the top layer toward a side adjacent to the bottom layer, the groove 31 extending at least partially through the absorbing layer in the thickness direction of the absorbing layer . The shape and size of the groove 31 coincides with the shape and size of the groove 3 finally provided in the diaper main body 1, and the top layer slidably extends on the side walls and the top wall of the groove 31 to form the final diaper main body 1. Slot 3. In the case where the groove 31 does not penetrate the absorbing layer, the bottom of the groove 3 is composed of a top layer of the diaper main body and a part of the absorbing layer and the bottom layer, and in the case where the groove 31 penetrates the absorbing layer, it is composed of the top and bottom layers of the diaper main body. The bottom of the tank 3 prevents leakage of the effluent to the outside of the diaper in both cases.

The insert 2 comprises an insert body 21 and a friction element 22 on the side of the insert body 21 facing the diaper body 1, the friction element 22 being secured in various ways known in the art, such as heat welding, bonding, and the like. It is placed on the insert body 21 and positioned centrally. The surface of the friction element 22 facing away from the insert body 21 has a high coefficient of friction. The friction element 22 is made, for example, of a heat-welding material.

Figure 4 shows a detailed view of the insert 2, wherein the friction element 22 is a rectangle elongated in the longitudinal direction of the diaper, having a length along the longitudinal direction of the diaper Y' has a width X'. The rectangular shape of the friction member 22 is matched in shape and size to the rectangular shape of the groove 3 in the diaper main body 1 to allow the friction member 22 to be accommodated in the groove 3 when the insert 2 is attached to the diaper main body 1. in.

Specifically, the width X of the groove 3 of the diaper main body 1 is preferably slightly larger than the width X' of the friction member 22, and the difference therebetween is preferably 5 to 75 mm, more preferably 5 to 50 mm. Further, the length Y of the groove 3 of the diaper main body 1 is preferably slightly larger than the length Y' of the friction member 22, and the difference therebetween is preferably 2-20 mm, more preferably 2-10 mm.

The insert body 22 may be constructed of a single layer or layers of absorbent material having different amounts of absorption as desired, and if constructed of multiple layers, may be configured to include a liquid permeable topsheet and a liquid permeable backsheet and an absorbent layer therebetween. Friction element 22 is fixedly bonded to the liquid permeable bottom layer. The liquid permeable topsheet and the liquid permeable backsheet of the insert body 22 can be the same material or different materials and can be the same or different material than the liquid permeable topsheet of the diaper body 1.

Although the shape of the groove 3 and the friction member 22 is rectangular in the present embodiment, their shapes may be other shapes as needed, for example, long with a circle or the like as long as the insert 2 is in the diaper main body 1. There is no undesired excessive movement between each other.

As for the shape of the insert body 21 of the insert 2, although shown as a trapezoidal shape, it may be of any desired shape, and its extended area may be set depending on the particular application. In applications where a large amount of absorption is required, the extended area of the insert body 22 is set larger, and in applications where the amount of absorption is small, the extended area of the insert body 22 can be set to be smaller. some. That is, a diaper body 1 can be used to join a variety of inserts 2, which further extends the flexibility of use of the diaper assembly.

The shape of the diaper main body 1 is not limited to the shape shown in FIGS. 1 and 3, and may be any other shape, for example, may be a rectangular shape, or may be a belt diaper, a pant diaper or the like as long as the groove 3 is provided therein. The crotch that requires the maximum absorption can be used.

Although the size of the groove 3 of the diaper main body is described above as being larger than the size of the friction member 22, the size of the friction member 22 on the insert 2 may be the same as the size of the groove 3, in which case when the friction member 22 is When inserted into the groove 3, it will come into contact with the corner 4 of the groove 3, so that during the wearing of the diaper assembly, as the insert 2 moves relative to the diaper body 1, the friction member 4 will rub against the corner 4, resulting in friction The frictional force prevents further movement of the insert 2 relative to the diaper body 1.

When the diaper assembly is worn, the insert 2 will be placed between the wearer's legs, and the insert 2 will follow the crotch portion 13 of the diaper body 1 well as the wearer's body moves, because the friction element 22 Inserted into the slot 3 or in contact with the corner 4 of the slot 3. Thereby, the insert 2 can stably follow the movement of the diaper main body 1 without excessive movement.

Fig. 5 shows a schematic plan view of a diaper body according to a modification of the first embodiment of the present invention, and Fig. 6 is a schematic cross-sectional view of the diaper insert used in cooperation with the diaper body.

In the diaper body 1, the recess is embodied in the form of a plurality of holes 3', which in this variant are shown as regularly distributed holes having a circular cross section, the holes being oriented from the top The bottom layer is concave and at least does not penetrate the diaper body The bottom layer. Correspondingly, as shown in Fig. 6, a plurality of projections 23 projecting from the surface of the friction member 22 of the insert member 2 facing away from the insert body 21 are also circular in cross-sectional shape. The diameter of the hole 3' is greater than or equal to the diameter of the projection 23, so that the insert 2 is connected to the diaper main body 1 by the insertion of the projection 23 into the hole 3'.

Of course, the cross-sectional shape of the hole 3' and the protrusion 23 is not limited to a circular shape, and may be a square shape or the like as long as the shape of the hole 3' and the protrusion 23 correspond and the hole 3' and the protrusion 23 are sized such that the protrusion 23 Can be inserted into 3'.

The number and distribution of the holes 3' and the projections 23 are not limited to those shown in Figs. 5 and 6, but may be specifically set depending on the application of the diaper and the size of the diaper.

Fig. 7 shows a second embodiment in accordance with the present invention, except that the top layer 5 is the same as the embodiment shown in Fig. 2.

In the second embodiment, the top layer 5 is not compliantly attached to the side walls and the bottom wall of the trough 3, but is bridged over the trough 3 along the horizontal plane of the inner side 14 of the diaper body 1. In this case, the groove 3 can be deep and shallow, that is, as shown in Fig. 7, the depth H of the groove 3 can vary from 0 to the thickness T of the absorbing layer. During use, the friction element 22 interacts directly with the top layer 5, for which purpose the top layer is a liquid permeable material and has a relatively high coefficient of friction, such as a nonwoven fabric, etc., such that the insert is worn when the diaper assembly is worn by the wearer. 2 When moving relative to the diaper body 1, the friction element 22 creates a frictional force with the top layer 5 which prevents further movement of the friction element 22 relative to the top layer 5 relative to the diaper body 1. In the field of diapers, the material of the top layer 5 usually has a certain flexibility. In the case where the depth of the groove 3 permits, the top layer 5 may be bent downward toward the inside of the groove 3 under the pressing of the friction member 22 during use, such as The dotted line in Figure 7 As shown, this further increases the ability of the insert 2 to follow the diaper body 1.

In use, even if the wearer's body moves, the friction between the insert 2 and the top layer 5 of the diaper prevents the insert 2 from moving too much, so that no excessive between the insert 2 and the diaper body 1 occurs. Expect to move.

The diaper assembly of the present invention is placed between the wearer's legs during use and the insert is placed inside the diaper body to protect the diaper body. When the replacement is required, the contaminated insert 2 is removed from the diaper body 1, and then the friction element 22 of the new insert 2 is inserted into the groove 3 of the diaper body 1 or frictionally joined to the top layer 5, without The entire diaper assembly is replaced, which greatly saves the cost of the diaper and is easy to replace.

In addition, a diaper body can be used with a variety of inserts having correspondingly sized friction elements, increasing the flexibility of use of the diaper elements.

The insert is positioned in the crotch portion of the diaper body by insertion or friction, and the insert follows the crotch well as the wearer's body moves.

The invention has been described with reference to the drawings, but the invention is not limited to the embodiments described above, and one or more features of the above-described embodiments may be combined as desired, and the final scope of the invention is defined by the scope of the appended claims.

1‧‧‧ diaper body

3‧‧‧ slots

4,22‧‧‧ friction elements

14‧‧‧ inside

15‧‧‧ outside

21‧‧‧Insert body

31‧‧‧ Groove

Claims (10)

An absorbent article comprising: a body comprising a front portion, a rear portion, and a crotch portion between the front portion and the rear portion in the longitudinal direction and having an inner side and an outer side in a thickness direction, the main body being in the crotch region a recess having a recess from the inside to the outside; and an insert detachably coupled to the weir of the body, the insert having a friction element that interacts with the recess to position the insert. The absorbent article of claim 1, wherein the friction member is permanently fixed to the insert. The absorbent article according to claim 1 or 2, wherein the depressed portion is a groove extending in a longitudinal direction of the main body, and a friction member of the insert is inserted into the groove. The absorbent article according to claim 3, wherein the shape and size of the groove correspond to the shape and size of the friction member. The absorbent article according to claim 1 or 2, wherein the depressed portion is a plurality of holes arranged regularly, and the friction member of the insert has a plurality of protrusions insertable into the plurality of holes. The absorbent article according to claim 5, characterized in that the cross-sectional shape of the hole and the protrusion is circular or square. The absorbent article according to claim 1 or 2, wherein the main body has a top layer constituting the inner side, a bottom layer constituting the outer side, and a bit In the absorbent layer therebetween, the insert is in contact with the top layer of the body. The absorbent article of claim 1, wherein the top layer of the body and the friction element are both made of a high friction material. The absorbent article according to any one of claims 4 to 6, wherein the length (Y) of the groove in the longitudinal direction of the main body is larger than the length (Y') of the friction member, during which The difference (Y-Y') is 2-20 mm, and the width (X) of the groove is larger than the width (X') of the friction member, and the difference (X-X') therebetween is 5-75 mm. The absorbent article according to claim 8, wherein the difference (Y-Y') between the length (Y) of the groove and the length (Y') of the friction member is 2 to 10 mm. The difference (X-X') between the width (X) of the groove and the width (X') of the friction element is 5-50 mm.