JP3644839B2 - Disposable diapers provided with holding means - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable diaper that can be easily worn.
[0002]
[Prior art]
In recent years, disposable diapers have been widely used. There are two main types of disposable diapers. One is an open diaper with an hourglass shape. This diaper is worn with the wearer lying on his back. The other is a pants-type disposable diaper that is mainly used during a transition period (during training) from a disposable diaper to normal pants that can be washed and used repeatedly. For example, JP-A-3-224559 discloses a pants-type disposable wearing article. This pant-type diaper is mainly used for infants who can crawl or walk a little, and pass their legs from the waistline opening to the undercarriage opening just like normal underwear It is put on.
[0003]
[Problems to be solved by the invention]
However, there are some problems for an infant or the like in the above-described stage to put on the open-type or pants-type disposable diaper. First, in an open-type disposable diaper, it is sometimes difficult to put on an infant because he / she dislikes that the infant is lying on his back. On the other hand, in a pants-type disposable diaper, the diaper is worn while standing with both feet, so when passing the foot, one foot must pass through the foot. At this time, the infant's posture was likely to be unstable and difficult to wear.
[0004]
The open-type or pants-type disposable diapers are held on the body by elastic members provided around the waist, so-called waist gathers. Therefore, the diaper may be displaced or removed due to friction with the floor surface when an infant hits it.
[0005]
The present invention is for solving the above-described problems, and an object thereof is to provide a disposable diaper that can be easily worn even when the wearer is in an unstable posture. It is a further object of the present invention to provide a disposable diaper that is difficult to slip off during wearing.
[0006]
[Means for Solving the Problems]
The present invention comprises a liquid-permeable top sheet directed toward the wearer, a liquid-impermeable back sheet directed outward, and an absorbent body sandwiched between the top sheet and the back sheet. In a diaper having a front portion applied to the wearer's ventral side, an intermediate portion applied to the crotch, and a rear surface portion applied to the back side,
The diaper, is provided with string-like diaper retaining means for holding the diaper on the body over the neck of the wearer,
The diaper holding means includes first holding means extending from the front surface portion and second holding means extending from the rear surface portion,
The first holding means continuously extends in a loop from the left side of the front part to the right side so that it can be turned to the back side of the neck of the wearer.
The second holding means extends from the rear surface portion so that the second holding means can be hooked on the first holding means turned to the back side of the neck of the wearer.
[0007]
The disposable diaper of the present invention does not require the wearer to lie on its back when worn, and it is not necessary to put both feet through the opening one by one, so the wearer can wear it smoothly with a stable posture with both feet on Can be made. In addition, when removing dirty diapers and replacing them with new ones, the overpants can be replaced by simply shifting the diapers to the top of the knee, which is very convenient.
[0008]
The disposable diaper of the present invention is preferably provided with a latching means for latching both the front and rear sides of the diaper when the diaper is stably mounted.
[0009]
In the present invention, the holding means is preferably elastically extendable. For example, a stretchable elastic member is used. In this case, even when the wearer moves, a force for pulling up the diaper is always applied during the wearing, so that the diaper is not easily displaced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the disposable diaper of this invention is demonstrated, referring drawings. FIG. 1 is a plan view showing the disposable diaper of the present invention from the liquid-permeable sheet side, and FIG. 2 is a perspective view showing a state when the diaper shown in FIG. 1 is mounted.
[0012]
The disposable diaper 1 of the present invention shown in FIGS. 1 and 2 is a so-called hourglass-shaped open-type diaper, which is applied to the front part 2A applied to the wearer's abdomen during use and to the buttocks and / or back during use. It has 2 C of back parts, and the intermediate part 2B applied to a crotch part at the time of use. The disposable diaper 1 has a liquid-permeable top sheet 10 directed toward the wearer, a liquid-impervious back sheet 11 directed outward, and an absorption sandwiched between the top sheet 10 and the back sheet 11. It consists of a body 12. The top sheet 10 and the back sheet 11 are joined to each other around the absorbent body 12 by a hot melt adhesive or the like.
[0013]
The top sheet 10 is formed of hydrophobic fibers, hydrophilic fibers, and the like that have been subjected to hydrophilic treatment, such as point bonds, air throughs, spun bonds, and spun lace nonwoven fabrics. The back sheet 11 is liquid-impermeable and breathable, and is formed of, for example, a polyolefin-based resin sheet. The absorbent body 12 is formed of pulverized pulp or a mixture of pulverized pulp and a superabsorbent polymer, and the pulverized pulp or a mixture of pulverized pulp and a superabsorbent polymer is wrapped with an absorbent sheet such as a tissue.
[0014]
Further, liquid-impervious belt-like sheets 15 and 15 are provided on both side portions on the top sheet 10. An elastic member 16 is provided on the side edge (which may be an intermediate portion in the width direction (X direction) of the belt-like sheet) of the belt-like sheet, and the side edge on the opposite side and the front and rear ends thereof Is bonded to the upper surface of the top sheet 10. Therefore, when the disposable diaper 1 is mounted, a pair of three-dimensional gathers for preventing side leakage such that the side edge on the center side rises is formed. Moreover, in the side part area | region (outside of an absorption area | region) where the absorber 12 of the X direction of the disposable diaper 1 does not exist, the elastic members 13 and 13 extended in the vertical direction (Y direction) of the disposable diaper 1 are the top sheet 10. And the back sheet 11 are bonded and fixed. When the elastic members 13 and 13 are elastically contracted in the Y direction, the top sheet 10 and the back sheet 11 are contracted in both side regions of the disposable diaper 1 in the X direction, and leg gathers 14 and 14 that fit around the legs are provided. It is formed.
[0015]
Such a disposable diaper 1 is provided with a diaper holding means which is applied to the neck and the shoulder in order to hold and fix the disposable diaper 1 on the wearer's body. First, the first holding means 20 is provided at the end 3A of the front face 2A of the disposable diaper 1, and the second holding means 21 is provided at the end 3C of the back face 2C. The first holding means 20 has a length that can be turned to the back side of the wearer's neck when worn, and continuously extends in a loop from the left side to the right side at the end 3A of the front face 2A. ing. That is, the end portions 20a, 20a of one first holding means 20 having a predetermined length are spaced in the X direction so as to be symmetrical with respect to the center line L1 of the disposable diaper 1, In the part 3A, the top sheet 10 and the back sheet 11 are sandwiched and joined.
[0016]
Similarly, in the back surface portion 2C, the end portions 21a and 21a are joined to the disposable diaper 1 so as to be symmetric with respect to the center line L1, so that the second holding means 21 has a loop shape. It should be noted that an adhesive tape 22 (or an adhesive tape 22) for hooking the first holding means 20 on the second holding means 21 is attached to the apex of the loop-shaped first holding means 20 (the central portion of the first holding means). Mechanical latching means) is provided.
[0017]
When the disposable diaper 1 provided with the first and second holding means 20 and 21 is worn, first, the loop of the first holding means 20 is hung on the wearer's neck, and the front surface portion 2A is applied to the wearer's abdomen. . Thereafter, the intermediate part 2B of the disposable diaper 1 is applied to the crotch part of the wearer, and the back part 2C is applied to the buttocks or back part of the wearer. Then, the adhesive tape 22 of the first holding means located behind the wearer's neck is hooked near the apex of the second holding means 21. As a result, as shown in FIG. 2, the holding means 20 and 21 function like a so-called suspender, and the disposable diaper 1 is held on the wearer's body.
[0018]
As described above, the disposable diaper 1 of the present invention does not require the wearer to lie on the back when worn, and it is not necessary to pass both the legs through the opening. Even if it is moving, it can be installed smoothly. Also, even when wearing overpants, it is convenient because it can be replaced with a new diaper simply by shifting the overpants down to the knee. Although the first holding means 20 places a little burden on the back of the wearer's neck, it is relatively strong against the force acting from the back of the person's neck to the front, so the wearer rarely feels uncomfortable.
[0019]
The holding means 20 and 21 can be formed of nonwoven fabric, cloth, paper, rubber, string, or the like. The holding means preferably has a function of elastic contraction. For example, the holding means 20 and 21 shown in FIG. 1 are formed of a nonwoven fabric, and include elastic members 23, 23, 24, and 24, respectively, so as to expand and contract in the length direction.
[0020]
The tension when each of the first holding means 20 and the second holding means 21 is extended in a state where the diaper holding means provided with the elastic member is put on the infant's neck may be 200 g or more and 1000 g or less. preferable. When the tension is smaller than the lower limit, the disposable diaper 1 becomes heavy when excrement is absorbed, and the disposable diaper 1 is easily displaced when the wearer moves in this state. If the tension is greater than the upper limit, tightening behind the neck of the wearer at the time of wearing becomes strong, and the wearer may feel uncomfortable. Considering such a reason, the more preferable stress is 300 g or more and 600 g or less, and more preferably about 400 g.
[0021]
However, the diaper holding means may not include an elastic member. Alternatively, only the first holding means may include an elastic member, and the second holding means may not include an elastic member. When the elastic member is not provided in the diaper holding means, the length can be adjusted at the time of wearing, or the latching position between the diaper holding means and the disposable diaper main body can be changed, so that the diaper holding means is attached. It is preferable that the length of time can be changed.
[0022]
A release sheet is provided in advance on the adhesive tape 22 provided on the first holding means 20, and the release sheet is peeled off during use to expose the adhesive surface. Any adhesive tape 22 may be used as long as it has adhesiveness, such as a rubber-based adhesive material or an acrylic resin. However, it is preferable to have an adhesive force that is not easily peeled off while wearing a diaper. Moreover, it is preferable that the vertex of the loop-shaped second holding means 21 is covered with a resin film so that the adhesive tape can be easily peeled off when the diaper 1 is replaced. Alternatively, a severable cut line (for example, a perforated cut line) may be provided in the adhesive tape or the diaper holding means.
[0023]
Moreover, the adhesive tape 22 for joining the diaper holding means to each other may be any as long as it can perform the same function. For example, one holding means is provided with a resin sheet on which a large number of mushroom-shaped or hook-shaped hooking protrusions having a hooking head are formed, and the other holding means is tricot knitted using polyester fiber as a material. A woven or non-woven fabric may be provided. In this case, if the non-woven fabric is made larger than the area of the resin sheet, the hooking position of the holding means can be adjusted as appropriate.
[0024]
In addition to the first and second holding means, the disposable diaper 1 of the present invention is preferably provided with means for holding and fixing the diaper to the body around the waist of the wearer. In the disposable diaper 1 shown in FIG.1 and FIG.2, the latch part 17 is provided in the both edges of the back flap (part which protrudes in the X direction) of the back flap 2C of the said back surface part 2C, and the back surface of 2 A of front parts A latching sheet 18 is attached to the front flap (portion protruding in the X direction) of the sheet 11. When the disposable diaper 1 is worn, the rear flap of the back surface portion 2C is superimposed on the back sheet 11 of the front surface portion 2A, and the hook portion 17 is hooked to the hook seat 18 at the waist portion of the wearer. . As a result, the state shown in FIG. 2 is obtained, and the front side 2A and the back side 2C of the disposable diaper 1 are hooked by the flap, and the diaper 1 is held and fixed at the wearer's waist. The As described above, by holding the disposable diaper 1 even in the waist of the wearer, the displacement of the disposable diaper 1 is further less likely to occur, and leakage from the side of urine and the like can be prevented.
[0025]
The latching sheet 18 is a resin sheet in which a large number of mushroom-shaped or hook-shaped latching protrusions having a latching head at the tip are formed, for example. The hooking portion 17 is, for example, a woven or non-woven fabric that is tricot knitted from polyester fibers. Or the latching | locking part 17 is an adhesive tape and the latching sheet 18 is a resin film. Since the disposable diaper 1 of the present invention is provided with holding means 20 and 21 for hanging on the neck, the hooking force between the hooking portion 17 and the hooking sheet 18 is the waist hooking provided on a normal diaper. The hooking force may be weaker than the fastening fastener.
[0026]
3 is a plan view showing another embodiment of the disposable diaper of the present invention from the liquid-permeable sheet side, and FIG. 4 is a perspective view showing a state when the disposable diaper shown in FIG. 3 is mounted. The disposable diaper 101 shown in FIG.3 and FIG.4 has the same structure as the disposable diaper shown in FIG.1 and FIG.2 except the holding means 121,125,126.
[0027]
In the disposable diaper 101 shown in FIG. 3, the end portions 125a and 126a of the two first holding means 125 and 126 are joined to the end portion 3A of the front surface portion 2A. Then, the end portion 125b and the end portion 126b opposite to the first holding means 125 and 126 are joined together, and as a result, a loop-shaped first holding means is formed. On the other hand, the second holding means 121 is a single band-like body having a predetermined length, and its end 121a is joined to the center in the X direction at the end 3C of the back surface 2C of the disposable diaper 101. Yes. An adhesive tape 122 is provided on the opposite end 121 b of the second holding means 121. These holding means 121, 125, and 126 are formed of a nonwoven fabric and include an elastic member, similarly to the holding means shown in FIGS.
[0028]
When the disposable diaper 101 is worn, the first holding means is hung on the wearer's neck in the same manner as the disposable diaper 1 shown in FIGS. 1 and 2, and the back surface of the disposable diaper 101 is applied to the back or buttocks of the wearer. . Then, the second holding means 121 is linearly extended toward the wearer's head, and is hung on the top of the loop-like first holding means (the portion where the end portion 125b and the end portion 126b are joined) and folded back. It is. And the adhesive tape 122 provided in the edge part 121b of the return | folded holding means 121 is adhere | attached on the suitable place of the 2nd holding means 121 extended linearly. As a result, as shown in FIG. 4, a disposable diaper 101 having the same function as the disposable diaper 1 shown in FIG. 2 is obtained. Such a disposable diaper 101 does not require a step of joining one holding means in a loop and joining it to the diaper, and it is easy to provide the first and second holding means in the manufacturing process.
[0029]
Moreover, the comparative example of the disposable diaper of this invention is shown in FIG. In the disposable diaper 201 shown in FIG. 5, the end 227 a of one holding means 227 is joined to the left end of the wearer on the front surface of the disposable diaper 201. Further, the end 228 a of the other holding means 228 is joined to the right end of the wearer on the front surface of the disposable diaper 201. When the disposable diaper 201 is worn, the front part, the middle part and the back part of the disposable diaper are applied to the wearer, and the holding means 227 and 228 are put on the shoulder of the wearer and turned to the back side. At this time, when the holding means 227 and 228 are mounted so as to intersect each other on the back of the mounting as shown in FIG. 5, the mounting of the disposable diaper 201 becomes more stable. That is, the end 227b of the holding means 227 is hooked on the right end of the back surface of the disposable diaper 201, and the end 228b of the holding means 228 is hooked on the left end of the back surface.
[0030]
As means for hooking the end portions 227b and 228b to the disposable diaper 201, an adhesive tape can be provided at the end portion as in the above-described embodiment, and can be joined to an appropriate position at the end portion of the back surface portion. Alternatively, a resin sheet in which a large number of mushroom-shaped or hook-shaped hooking protrusions having a hooking head at the tip is provided at the end portions 227b and 228b, and the back surface of the disposable diaper 201 is placed on the backsheet. Alternatively, a woven or non-woven fabric knitted from tricot made of polyester fiber may be provided and hooked together. In addition, any means may be used for hooking. In the disposable diaper 201 shown in FIG. 5, the end portions 227b and 228b of the holding means 227 and 228 are joined in advance to the end portion of the back surface portion, and the end portions 227a and 228a are attached to the end portion of the front surface portion after the diaper is mounted. It may be something to be hooked. In such a disposable diaper 201 shown in FIG. 5, there is no burden on the neck of the wearer when the disposable diaper shown in FIGS.
[0031]
FIG. 6 is a plan view showing another embodiment of the disposable diaper of the present invention from the liquid-permeable sheet side, and FIG. 7 is a perspective view showing a state when the disposable diaper shown in FIG. 6 is mounted. A disposable diaper 301 shown in FIGS. 6 and 7 is composed of a rectangular topsheet, a backsheet and an absorbent body, and has a front surface 302A applied to the wearer's abdomen during use and a back surface applied to the buttocks or back during use. It has a part 302C and an intermediate part 302B applied to the crotch part when in use. However, the flap as in the disposable diaper 1 of FIG. 1 does not protrude from both sides of the front surface portion 302A and the back surface portion 302C of the disposable diaper 301. A waist band 319 is provided on the back surface portion 302C of the disposable diaper 301 in place of the waist gather. The waist band 319 is formed of a nonwoven fabric or the like, and includes an elastic member so as to expand and contract along the waist (in the X direction). In addition, the three-dimensional gathers, leg gathers, etc. for side leakage prevention are the same structures as the disposable diaper 1 shown in FIG.1 and FIG.2.
[0032]
At the time of wearing the disposable diaper 301, in the same manner as the disposable diaper 1 shown in FIGS. 1 and 2, the first holding means 320 is hung on the wearer's neck, and the intermediate portion 302B is placed on the wearer's crotch. The back surface portion 302 </ b> C is applied to the buttocks portion or the back portion, and the first holding means 320 is hooked on the second holding means 321 with the adhesive tape 322. And a diaper can be fixed in a wearer's waist part by latching the latching sheet 318 of the waistband 319 on the latching part 317 provided in the front part. The disposable diaper 301 having such a shape is easy to manufacture, and since the top sheet, the back sheet and the absorbent body are rectangular, the raw material of the disposable diaper 301 is less than that of an open diaper having a conventional flap. It is difficult to waste.
The disposable diaper 301 is open on both sides 304 and 304 of the wearer as shown in FIG. For this reason, the inside of a diaper is hard to peel during mounting | wearing.
[0033]
Further, in the present invention, the disposable diaper 301 shown in FIGS. 6 and 7 may be deformed, and the disposable diaper 401 having a simpler structure without the leg gathers as shown in FIG. 8 may be used. About this disposable diaper 401, a manufacturing process becomes still easier. However, in this case, preferably two or more pairs of three-dimensional gathers for preventing side leakage are provided, and it is preferable to enhance the effect of preventing leakage from around the crotch.
[0034]
FIG. 9 is a perspective view for explaining the structure of another embodiment of the disposable diaper of the present invention, and FIG. 10 is a perspective view showing a state when the disposable diaper shown in FIG. 9 is mounted. The disposable diaper 501 shown in FIG.9 and FIG.10 is formed from the front part 530a and the rear surface part 530b.
[0035]
First, a front surface portion 530a is formed by a liquid-permeable top sheet 510a, a back sheet 511a made of a film (i) and a nonwoven fabric (ii), and an absorbent body 512a sandwiched therebetween. The top sheet 510a and the back sheet 511a are joined to each other around the absorber 512a by a hot melt adhesive or the like. In addition, since the non-woven fabric appears on the outer side of the diaper by forming the back sheet 511 with a liquid-impermeable and breathable film (i) and a non-woven fabric (ii) stacked on the outside thereof, for example, a spunbond non-woven fabric, It feels good when you touch a diaper. Similarly, the rear surface portion 530b is formed by the liquid-permeable top sheet 510b, the back sheet 511b, and the absorber 512b sandwiched therebetween. The disposable diaper 501 is formed by joining a front surface portion 530 a and a rear surface portion 530 b with a joining line 531.
[0036]
On the side facing the wearer of the top sheets 510a and 510b, a three-dimensional gather for preventing side leakage formed by a liquid-impermeable belt-like sheet is provided. An elastic member is provided on one side edge of the belt-like sheet, and the opposite side edge is bonded to each of the top sheets 510a and 510b. Although the belt-like sheet is not specifically shown, a dotted line 515 indicates a position where the belt-like sheet is bonded to the top sheet 510a.
[0037]
And the 1st holding means 520 is provided in the edge part of the front surface part 530a similarly to the disposable diaper 1 shown in FIG. 1, and the 2nd holding means 521 is provided in the edge part of the rear surface part 530b. Yes. Furthermore, waistbands 519 and 519 are provided on the rear surface portion 530b in the same manner as the disposable diaper 301 shown in FIGS. At the time of mounting, the disposable diaper 301 shown in FIGS. 6 and 7 can be mounted.
[0038]
As can be seen from FIG. 10 showing the wearing-like body, the disposable diaper 501 has a smaller dimension W in the crotch portion in the X direction than that of an open hourglass shape. This can be seen by comparing with the disposable diaper 1 shown in FIG. Thus, since the dimension W is made smaller than that of the conventional one, the disposable diaper 501 can be appropriately adjusted so that the width of the wearer's crotch and the dimension of the crotch of the diaper in the X direction are substantially matched. Can prevent the occurrence of kinks and wrinkles. Moreover, a feeling of fitting (fit feeling) is also improved.
[0039]
Further, the disposable diaper 501 shown in FIGS. 9 and 10 has both sides 504 and 504 open, but flaps such as those provided in a normal open diaper are provided on both sides of the front part 530a and the rear part 530b. It may be provided and both sides may be closed when worn.
[0040]
【The invention's effect】
As described in detail above, the disposable diaper of the present invention does not require the wearer to lie on its back when worn, and it is not necessary to pass both feet through the opening, so that the wearer keeps both feet on. It can be installed smoothly with a stable posture. Also, when removing dirty items and replacing them with new diapers, the overpants can be changed by simply shifting them to the top of the knee, which is very convenient. When the holding means includes an elastic member that can be expanded and contracted, it is possible to prevent the displacement of the disposable diaper during wearing with a high probability. Moreover, if the member latched in a wearer's waist part is provided, the wearing of a disposable diaper will become still more stable.
[0041]
In addition, a disposable diaper having a rectangular planar shape has a simple manufacturing method and generates less dust in the manufacturing process. Furthermore, since both sides are open, it is difficult for the diaper to be peeled off.
Moreover, the disposable diaper formed by a separate front part and rear part fits well in the crotch part and can prevent leakage. Moreover, a feeling of wearing is also good.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the disposable diaper of the present invention. FIG. 2 is a perspective view showing a state when the disposable diaper of the present invention shown in FIG. 1 is mounted. FIG. 4 is a perspective view showing a state when the disposable diaper of the present invention shown in FIG. 3 is mounted.
The perspective view which shows the comparative example of the disposable diaper of this invention [FIG. 6] The top view which shows other embodiment of the disposable diaper of this invention [FIG. 7] The state at the time of mounting | wearing of the disposable diaper of this invention shown in FIG. FIG. 8 is a perspective view illustrating another embodiment of the disposable diaper of the present invention. FIG. 9 is a perspective view illustrating the structure of another embodiment of the disposable diaper of the present invention. Perspective view showing the state when wearing a disposable diaper 【Explanation of symbols】
1, 101, 201, 301, 401, 501 Disposable diapers 2A, 302A Front part 2B, 302B Middle part 2C, 302C Rear part 3A, 3C End part 4, 304, 504 Side 10, 510a, 510b Top sheet 11, 511a, 511b Back sheet 12, 512a, 512b Absorber 13 Elastic member 14 Leg gather 15 Strip-shaped sheet 16 Elastic member 17, 317 Latching part 18, 318, 518 Latching sheet 20, 320, 520 First holding means 21, 321 521 Second holding means 22, 322, 522 Adhesive tapes 23, 24 Elastic members 125, 126, 227, 228 Holding means 319, 519 West band 530a Front face 530b Rear face 531 Joining line

Claims (3)

A liquid-permeable top sheet directed toward the wearer, a liquid-impervious back sheet directed outward, and an absorbent body sandwiched between the top sheet and the back sheet. In a diaper having a front part applied to the ventral side, an intermediate part applied to the crotch, and a rear part applied to the back side,
The diaper, is provided with string-like diaper retaining means for holding the diaper on the body over the neck of the wearer,
The diaper holding means comprises first holding means extending from the front surface portion and second holding means extending from the rear surface portion,
The first holding means extends continuously in a loop from the left side to the right side of the front part so that it can be turned to the back side of the neck of the wearer,
The disposable diaper , wherein the second holding means extends from the rear surface portion so that the second holding means can be hooked on the first holding means turned to the back side of the neck of the wearer.   The disposable diaper according to claim 1, wherein the diaper is provided with a hooking means for hooking both sides of the front surface portion and the rear surface portion of the diaper when worn.   The disposable diaper according to claim 1 or 2, wherein the diaper holding means is elastically stretchable.

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