JP4566730B2 - Disposable diapers - Google Patents

Description

  The present invention relates to a disposable diaper.

As a disposable diaper which can adjust a feeling of fitting using a hook and loop fastener, the diaper currently indicated by the following patent documents 1 is known. As shown in FIG. 5, this diaper is a so-called T-shaped diaper. Another surface fastener 104 provided at both ends is surface-bonded to form a pants shape.
JP2003-102777A (FIG. 1)

  Such disposable diapers are folded so that they cannot be used as they are at the time of product shipment. That is, once the diaper is unfolded and applied to the body, the hook-and-loop fasteners 104 and 102 must be joined at an appropriate position of the diaper and the diaper must be worn. Such a wearing method is appropriate when diapers are worn on infants who cannot wear diapers themselves, severely ill persons, elderly people with high levels of care required, and the like.

  On the other hand, a sick person who does not need the care of the difference, an elderly person with a low degree of care, etc. can wear pants in a sitting or middle waist posture. However, in the developed diaper, it is necessary to apply the vertically long portion 101 to the crotch while turning the horizontally long portion 103 to the waist, which is difficult to wear. Rather, there is a desire to wear a pants-type diaper, just like ordinary pants. Therefore, it is desirable for such a mild sick person to be able to wear the diaper immediately without purchasing it at the time of purchase.

  Here, if the hook-and-loop fasteners 102 and 104 of FIG. 5 are joined in advance and the diaper is formed in a pants shape before being folded and shipped, the diaper can be worn immediately without being unfolded.

  However, after wearing the diaper of FIG. 5, the joining position may be changed to adjust the fit. In such a case, a diaper in which the surface fasteners 102 and 104 are surface-bonded in advance requires a large force to peel off the surface fasteners 102 and 104, so that it is difficult to adjust the fit for a sick person or an elderly person with weak power.

  On the other hand, in a diaper formed in a pants shape in advance, it is necessary to remove the fasteners 102 and 104 every time a caregiver wears the diaper on a sick person or the like, which is troublesome.

  Accordingly, an object of the present invention is to provide a disposable diaper that can be worn like ordinary pants and can easily adjust the fit after wearing, and is easy to use even when used as a diaper. And

In order to achieve the above object, a disposable diaper according to the present invention is a disposable diaper having a torso that fits around a wearer's waist and a crotch that covers the wearer's crotch, and the torso is A first torso extending from the back torso of the wearer to the torso in front of the wearer, and a second torso covering at least the center torso in front of the wearer, the first torso The first body is provided with male surface fasteners (an example of a joining element) on the inner surface of both ends in the waist direction, and the second body is longer than the second body. The portion includes a female surface fastener (an example of a member that forms a surface to be bonded) and a temporary bonding surface made of a non-woven fabric on the outer surface, and the temporary bonding surface is provided at the approximate center of the trunk in front of the wearer The female surface fasteners are disposed at least on both sides of the temporary bonding surface in the waistline direction. The male surface fastener is connectable to the female surface fastener and the temporary bonding surface, and the engagement force between the temporary bonding surface and the male surface fastener is greater than the engagement force between the female surface fastener and the male surface fastener. The male fastener is temporarily joined to the temporary joint surface and is folded into a pants shape.
In the present invention, an adhesive tape can be used as an example of the joining element instead of the male fastener. In this case, a member having a smooth surface may be used as the bonded surface or the temporary bonding surface instead of the female surface fastener.

Since such disposable diapers are folded in a pants shape in advance, the wearer can temporarily wear them like ordinary pants without unfolding the diapers. Since the male fastener is not joined to the female fastener, it is joined to the temporary joining surface of the nonwoven fabric with weak engagement force, so that after the temporary wearing, the wearer temporarily joins the male fastener with a small force. After peeling from the surface, the male surface fastener can be engaged with the male surface fastener to easily change the joining position of the male surface fastener. That is, it is possible to easily adjust the fit. Therefore, even elderly people with weak legs can wear diapers themselves without the caregiver's care.
A female surface fastener is provided separately from the temporary bonding surface, and a large engagement force can be obtained by bonding the male surface fastener to the female surface fastener.

On the other hand, when a caregiver makes a sick person wear a diaper, the diaper is unfolded by peeling off the male fastener from the non-woven fabric with weak engagement force, and the diaper is unfolded. Can be made.
In the present invention, as the female surface fastener, a commercially available female surface fastener can be used, but a non-woven fabric that is raised (larger fluff) than the non-woven fabric forming the temporary joining surface can be used. Are also included within the scope of the present invention.

  The female surface fastener is preferably composed of a pair of female surface fasteners spaced apart from each other in the waistline direction, and the temporary joining surface is exposed between the pair of female surface fasteners.

  In a preferred embodiment of the present invention, the female surface fastener is bonded to the outer surface of the nonwoven fabric forming the temporary bonding surface. Generally, since the second body portion has a non-woven fabric on the outer surface, the temporary joining surface is formed by the non-woven fabric forming a part of the second body portion, so that the productivity is not lowered.

In another preferable aspect of the present invention, the nonwoven fabric forming the temporary joining surface forms a flap extending from the second body portion toward both sides in the waistline direction, and the nonwoven fabric has elasticity that can expand and contract in the waistline direction. A member is provided.
In this way, when adjusting the fit after wearing, the joint position of the male fastener can be adjusted by pinching the flap so that the second torso does not move in the waistline direction, making it easier to adjust the fit become. Moreover, by providing an elastic member on the second torso, the fit of the diaper on the torso in front of the wearer is improved.

  Embodiments of the present invention will be described below with reference to the drawings.

First embodiment:
First, a first embodiment of the present invention will be described with reference to FIGS. This embodiment is a principle embodiment of the present invention, and the basic structure and principle of a so-called T-type disposable diaper will be described.
Fig.1 (a) and FIG.1 (b) are schematic perspective views which show the basic structure of the disposable diaper of this invention. FIG. 1 (a) shows a diaper in a partially expanded state, and FIG. 1 (b) shows a diaper in a folded state at the time of shipment.

As shown to Fig.1 (a), a disposable diaper is provided with the trunk | drum 1 which fits a wearer's waist, and the crotch part 2 which covers a wearer's crotch. The said trunk | drum 1 is provided with the 1st trunk | drum 11 which covers the trunk | drum after a wearer at least, and the 2nd trunk | drum 12 which covers the trunk | drum before a wearer at least. The first body portion 11 is formed longer in the waistline direction X than the second body portion 12.
The 1st trunk | drum 11 is formed so that it may extend to the both sides of the trunk periphery direction X from the trunk | drum of a wearer's back. . The length of the first torso 11 in the waistline direction X is such that it reaches the torso in front of the wearer along the torso from the torso behind the wearer during use. On the other hand, the length of the second body 12 in the waist direction X is substantially the same as that of the crotch 2 in this example.

  The first body portion 11 includes male surface fasteners M and M on inner surfaces (surfaces facing the skin) of both end portions 15 and 15 in the waistline direction X, respectively. The said 2nd trunk | drum 12 is equipped with the female surface fasteners F and F on the outer surface (surface of the side which does not face skin) of the both ends 17 and 17 of the trunk periphery direction X, respectively. The female surface fasteners F, F are bonded to the surface of the nonwoven fabric constituting the second body 12. The nonwoven fabric of the second body portion 12 forms the temporary bonding surface 3 exposed on the outer surface of the substantially central portion (substantially central portion in the waistline direction X) of the torso in front of the wearer. The female surface fasteners F and F are disposed so as to be separated from each other in the waistline direction X, and the temporary joining surface 3 is disposed so as to be sandwiched between the female surface fasteners F and F.

  The male surface fasteners M, M of the second body portion 12 can be bonded to the female surface fasteners F, F and the temporary bonding surface 3 made of a nonwoven fabric. The engaging force when the male fasteners M, M and the temporary joining surface 3 are joined is smaller than the engaging force when the male fasteners M, M and the female fasteners F, F are joined.

  As shown in FIG. 1 (b), in the state at the time of shipment, the first body part 11 is folded and both end parts 15, 15 of the first body part 11 are overlapped on the outer surface of the second body part 12. . At this time, at least a part of the male fasteners M, M are joined to the temporary joining surface 3. The joining of the male fasteners M, M and the temporary joining surface 3 is a temporary joining state with a weak engagement force.

In this manner, a disposable diaper folded into a pants shape is formed. Since it is formed in a pants shape, it can be worn as it is. Moreover, since the male fasteners M and M are temporarily joined to the temporary joining surface 3 as described above, the male fasteners M and M can be easily attached to the temporary joining surface 3 with a small force after wearing. The male surface fasteners M, M can be joined to the female surface fasteners F, F of the second body 12 to provide a fit that fits the wearer. At this time, the male fasteners M, M are joined to the female fasteners F, F, so that they are joined more strongly.
Of course, it can be developed into a T shape and worn by a sick person or the like lying as a normal diaper.

  In FIGS. 1 (a) and 1 (b), the male fasteners M and M are sized so as to fit into the temporary joining surface 3. However, it is not always necessary to form such male fasteners. Absent. For example, as shown in FIG. 2A, the male fasteners M, M may be joined only to a part of the temporary joining surface 3 by using smaller male fasteners M, M. Further, as shown in FIG. 2B, the male fasteners M, M are joined to at least a part of the temporary joining surface 3 and a part of the female fasteners F, F by using larger male fasteners M, M. You may make it do. In the plan views of FIGS. 2A and 2B, the portion provided with the male fastener M is shaded in order to clarify the portion.

  Further, in FIGS. 1A and 1B, a pair of female surface fasteners F and F are disposed and bonded to the nonwoven fabric forming the outer surface of the second body 12 while being separated from each other. Although the temporary joining surface 3 is formed in the above, such a structure is not necessarily adopted. For example, as shown in FIG. 3A, the temporary joining surface 3 surrounded by the female surface fastener F can be formed by bonding one female surface fastener F having a hole 41 at the center to the nonwoven fabric. Further, as shown in FIG. 3B, the temporary joining surface 3 can be formed by adhering a non-woven fabric 44 different from the non-woven fabric 43 forming the second body 12 on the female surface fastener F. . In this case, as shown in FIG. 3C, one female surface fastener F that crosses the second body portion 12 along the waistline direction X is bonded onto the nonwoven fabric 43 that forms the second body portion 12. Further, another non-woven fabric 44 is bonded onto the female surface fastener F. However, the structure of FIG. 1 (a) is easier to manufacture than the structure of FIGS. 3 (a) and 3 (b).

Second embodiment:
Next, a second embodiment of the present invention will be described with reference to FIGS. 4 (a) to 4 (c). This embodiment shows an example of a specific structure of a so-called TH-type disposable diaper. In the following embodiments, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals, and detailed description and illustration thereof are omitted. In the plan view of FIG. 4A, the portion provided with the male fastener M is shaded in order to clarify the portion.

  As shown to Fig.4 (a), the diaper of a present Example is provided with the 1st trunk | drum 11 and the 2nd trunk | drum 12 which cover a wearer's waist, and the crotch part 2 which covers a wearer's crotch, These are formed from a sheet-like member and an elastic member. Moreover, this diaper is provided with the core part 80 containing the absorber C, and this core part 80 is arrange | positioned so that it may straddle over the said 1st trunk | drum 11, the crotch part 2, and the 2nd trunk | drum 12. .

  As shown in FIG. 4B, the core portion 80 is formed by laminating a top sheet 81, an absorbent body C, a back sheet 83, and the like. The top sheet 81 is a liquid-permeable sheet that comes into contact with the wearer's skin and can pass through the body fluid of the wearer. The absorbent body C has a function of absorbing a wearer's body fluid, and may include, for example, fluff pulp obtained by pulverizing pulp and / or a superabsorbent polymer. The back sheet 83 is a liquid-impermeable sheet and does not transmit the body fluid of the wearer.

As shown in FIG. 4C, elastic members 72 constituting leg gathers may be provided at both end portions in the waistline direction X of the top sheet 81.
Moreover, as shown in FIGS. 4A and 4C, a leak-proof cuff 95 may be provided at both ends of the core portion 80 in the waistline direction X. The leak-proof cuff 95 may be provided with an elastic member 73.

As shown in FIGS. 4A and 4B, an inner material 91 and an outer material 92 are provided so as to cover the core portion 80 from the outside. The inner material 91 is provided corresponding to the first and second body parts 11 and 12. The outer material 92 covers the entire core portion 80 from the outside and is provided so as to spread over the entire diaper (the first body portion 11, the second body portion 12, and the crotch portion 2). The outer material 92 may be a nonwoven fabric, for example, and forms the outer surface of the 1st trunk | drum 11, the 2nd trunk | drum 12, and the crotch part 2. FIG.
As shown in FIG. 4B, an elastic member 71 is sandwiched between the inner material 91 and the outer material 92, and the elastic member 71 is also disposed at both end portions 93, 93 in the longitudinal direction Y of the outer material 92. Is provided. As described above, the elastic member 71 may be provided so as to extend in the waistline direction X to constitute a fit gather and a waist gather.

  Male fasteners M, M are provided on the inner surface at both end portions 15, 15 of the outer body 92 in the waist direction X of the first body portion 11. As shown in FIG. 4A, in this diaper, the elastic members 71 are not provided at both ends 15 and 15 where the male fasteners M and M are provided. An elastic member 71 may be provided.

  A pair of female surface fasteners F and F are bonded to the outer surface of the outer member 92 in the second body 12, that is, the outer surface of the nonwoven fabric 92. The pair of female surface fasteners F, F are provided to be separated from each other in the waistline direction X, thereby forming a temporary bonding surface 3 in which the nonwoven fabric is exposed between the female surface fasteners F, F.

  As shown in FIG. 4A, the elastic member 71 is not shown in the portion corresponding to the temporary joining surface 3 in the end portion 93 of the outer material 92 in the second body portion 12. The elastic member 71 may be provided also in the part, or the elastic member 71 may be cut short so that the contraction force is not exerted on the part corresponding to the temporary joining surface 3.

  Further, the outer material 92 in the second body portion 12 extends toward both sides of the female surface fastener F in the waist direction X to form a flap 99. Since the joining position of the hook-and-loop fasteners F and M can be adjusted while pinching the flap 99 and fixing the second body portion, it is possible to easily adjust the fit.

  In this diaper, after folding the flap 99 inward and further folding the crotch portion 2, the both end portions 15, 15 of the first body portion 11 are overlapped on the outer surface side of the second body portion 12. , M are provisionally joined to the provisional joining portion 3 so that the diaper is folded into a pants shape in the same manner as in the first embodiment.

  In the diaper as shown in FIG. 4, the male fastener M can be joined to the outer surface of the flap 99 without providing the temporary joining surface 3 between the female fasteners F and F. However, if it carries out like this, it will be bulky in the state folded into the pants shape at the time of shipment.

  By the way, there are very few cases where the male fasteners M, M are used while being joined to the central temporary joining surface 3 when the diaper is worn. Therefore, although the temporary joining surface 3 is provided in the center and the original female surface fasteners F and F are not provided, there is no problem.

  The elastic members 71, 72, 73 may be made of a material including thread rubber, flat rubber, mesh rubber, an elastic film, or a thermoplastic elastic member.

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by looking at the present specification.
For example, a non-woven outer material may be provided only on the first and second body parts and not on the crotch part.
Moreover, you may make it provide an elastic member in the part by which the core part is arrange | positioned among 1st trunk | drums.
Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.

  The present invention can be applied to disposable diapers.

(A) is a schematic perspective view which shows the state which partially expanded the disposable diaper concerning 1st Example of this invention, (b) is a schematic perspective view which shows the folded state of the diaper. (A), (b) is a partial top view which shows the state which the diaper concerning the modification was folded. (A), (b) is a schematic perspective view which shows the 2nd trunk | drum part of the diaper concerning a modification, (c) is the IIIc-IIIc sectional view taken on the line of FIG.3 (b). (A) is a plan view of a disposable diaper according to the second embodiment of the present invention, (b) is a sectional view taken along line IVb-IVb in FIG. 4 (a), and (c) is a sectional view taken along line IVc-IVc in FIG. 4 (a). It is sectional drawing. It is a perspective view which shows a prior art example.

Explanation of symbols

1: body part 11: first body part 12: second body part 15: both end parts (of the first body part) 2: crotch part 3: temporary joining surfaces 71, 72: elastic member 99: flap F: female surface fastener (Member that forms the surface to be joined)
M: Male face fastener (joint element)
X: waist circumference direction

Claims (5)

A disposable diaper comprising a torso that fits around the wearer's waist and a crotch that covers the wearer's crotch,
The torso includes a first torso that extends from the torso after the wearer to the torso before the wearer along the torso, and a second torso that covers at least the center torso before the wearer,
The first trunk is longer in the waistline direction than the second trunk,
Each of the first body portions includes a joining element on the inner surface of both end portions in the waistline direction,
The second body portion includes a bonded surface and a temporary bonding surface on an outer surface,
The temporary bonding surface is provided in the approximate center of the trunk in front of the wearer, and the bonded surfaces are arranged at least on both sides of the temporary bonding surface in the waistline direction,
The joining element can be joined to the joined surface and the temporary joining surface,
The engagement force between the temporary bonding surface and the bonding element is smaller than the engagement force between the bonding element and the bonded surface,
A disposable diaper in which the joining element is temporarily joined to the temporary joining surface and is folded into a pants shape. A disposable diaper comprising a torso that fits around the wearer's waist and a crotch that covers the wearer's crotch,
The torso includes a first torso that extends from the torso after the wearer to the torso before the wearer along the torso, and a second torso that covers at least the center torso before the wearer,
The first trunk is longer in the waistline direction than the second trunk,
Each of the first body parts is provided with male fasteners on inner surfaces of both end parts in the waistline direction,
The second body is provided with a female surface fastener and a temporary joining surface made of a nonwoven fabric on the outer surface,
The temporary joining surface is provided in the approximate center of the trunk in front of the wearer, and the female surface fasteners are disposed at least on both sides of the temporary joining surface in the waistline direction,
The male surface fastener can be joined to the female surface fastener and the temporary joining surface,
The engagement force between the temporary joining surface and the male surface fastener is smaller than the engagement force between the female surface fastener and the male surface fastener,
A disposable diaper in which the male fastener is temporarily joined to the temporary joining surface and is folded into a pants shape. In Claim 1 or 2, the joined surface or the female surface fastener comprises a pair of female surface fasteners spaced apart from each other in the waistline direction.
A disposable diaper in which the temporary joining surface is exposed between the pair of female fasteners.   The disposable diaper according to claim 1, 2, or 3, wherein the joined surface or the female surface fastener is bonded to an outer surface of the temporary joining surface or a nonwoven fabric forming the temporary joining surface.   5. The nonwoven fabric forming the temporary bonding surface according to claim 1, wherein the nonwoven fabric forms flaps extending from the second body portion toward both sides in the waistline direction, and the nonwoven fabric is stretchable in the waistline direction. Disposable diapers provided with a flexible elastic member.

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