JP5514679B2 - Tape-type disposable diaper - Google Patents

Description

  The present invention relates to a tape-type disposable diaper that expands the applicable range of the waist and facilitates size adjustment.

  Conventionally, a commercially available tape-type disposable diaper is provided with fastening tapes 50 and 50 for wearing diapers on both sides of the back of the diaper for wearing as shown in FIG. 10, for example. After applying the front and back of the diaper to the wearer's body, the fastening tape 50, 50 is brought to the ventral side, and a plastic material such as polyethylene, non-woven fabric, tricot, etc. fixed to the outer surface of the diaper It fixes to the front target tape 51 which becomes and fixes a diaper.

  Such tape-type disposable diapers can be broadly classified into pediatric, middle-aged, and adults by size. The middle-aged diaper is too small for the maximum size for children and is the smallest for adults when the physically disabled and intellectually disabled need to use diapers even in elementary, middle and high school students. It is used because it is too large in size.

  However, the current middle-aged diapers have very few products in the market compared to children and adults, and the following problems have arisen due to size mismatch at the time of use. For users with too large diapers, when fastening the fastening tape to the front target tape by bringing the fastening tape to the ventral side, if the fastening tapes on both sides overlap each other, the result is that they are shifted to the outside so that they do not overlap , “There was a gap, More”. On the other hand, users with diapers that are too small will not reach the front target tape even if the fastening tape is brought to the ventral side, or if it is forcibly pulled to the ventral side, it can be fixed only at the marginal position. There were problems such as “Intense” and “Tape is easy to come off”.

  On the other hand, in Patent Document 1 below, an elastic stretchable member is fixed to at least a portion of the fastening tape from the fixed portion to the main body portion, and the elastic stretchable member is positioned at the portion positioned at the fixed portion and at the tip portion. A tape-type disposable diaper is disclosed in which the portion to be bonded is fixed to the fastening tape in a non-stretched state, and the portion located in the main body portion is bonded and fixed to the fastening tape in a state extended in the width direction. .

  Further, in Patent Document 2 below, one end is fixed to the back side edge of the paper diaper main body, and when used, the fastening portion at the other end is extended from the back side edge of the main body, and the front side of the paper diaper main body is ventilated. In a paper diaper having a pair of left and right fastening tapes fixed to the tape, an extension for adjusting the size between one fastening end of the fastening tape and a fastening part at the other end of the paper diaper main body. There is disclosed a paper diaper including a size adjusting fastening tape in which the extended portion is temporarily fastened to the outer surface of the back side edge of the paper diaper main body in a folded state.

JP 2010-22550 A JP 2004-321269 A

  However, in the disposable diaper described in Patent Document 1, it is easy to adjust the size by adopting an elastic material on the side part, but in this case, a burden due to the tension of the elastic material is easily applied to the side part.

  In the paper diaper described in Patent Document 2, the length of the fastening tape can be adjusted in at least two stages, that is, the folded state and the extended state. It is conceivable that an unnecessary adhesive part at the time of deployment increases, which hinders good wearing. Further, the fastening tape may be unfolded due to the movement of the user or the pressure of the abdomen during use.

  Then, the main subject of this invention is providing the tape-type disposable diaper which expanded the applicable range of a waist and made size adjustment easy.

In order to solve the above-mentioned problem, the present invention according to claim 1 has a fastening tape attached to both sides of the diaper on the back side so as to protrude sideways, and the fastening tape is fastened to the ventral surface of the diaper. In a disposable tape diaper that is designed to wear a diaper on the body,
The fastening tape has a base material protruding laterally from both sides on the back side, a surface on the outer side of the diaper and a surface on the inner side of the diaper, and a loop-shaped sheet member having an insertion hole between these surfaces. And has a hook element on the inner surface of the diaper, and includes a hook material that is inserted through the base material and is movable along the base material.
The distal end portion of the base material is provided with a fixing means on the outer surface of the diaper, and the base material and / or the hook material is provided with a fixing means that engages with the fixing means, and penetrates the hook material. A tape-type disposable characterized in that the hook material can be fixed at a predetermined position of the base material by folding the base material of the base portion to the outer surface side of the diaper and engaging the fixing means and the fixing means. Diapers are provided.

  In the invention of the first aspect, the fastening tape has a base material protruding laterally from both sides on the back side, a surface on the outer side of the diaper, and a surface on the inner side of the diaper, and between these surfaces. It is a loop-shaped sheet member having an insertion hole, and has a hook element on the surface on the inner surface side of the diaper, and includes a hook material that is inserted through the base material and is movable along the base material. . Furthermore, the front end portion of the base material is provided with fixing means on the outer surface of the diaper, and the base material and / or the hook material is provided with fixed means for engaging with the fixing means, and the hook material The hook material can be fixed at a predetermined position of the base material by folding back the base material through the outer surface of the diaper and engaging the fixing means and the fixed means.

  When wearing this disposable diaper, for users whose diapers are too large, the hook material is moved to the base end side of the base material, and the base material portion of the part that has penetrated the hook material is moved to the outer surface side of the diaper. The fixing means at the distal end is engaged with the fixed means at the base end of the base material. As a result, the fastening tape is shortened, so that even if the fastening tape is brought to the abdomen, it is difficult for the fastening tapes on both sides to overlap each other, the diaper can be fitted to the body, and gaps and leakage can be prevented Become. On the other hand, for a user whose diaper is too small, the hook material is moved to the front end side of the base material, the base material of the portion that penetrates the hook material is folded back to the outer surface side of the diaper, and the base end portion of the base material is fixed. The means is engaged with the hook-fixed means. As a result, the fastening tape becomes longer, so that the fastening tape can be firmly fixed to the front target tape without forcing the fastening tape toward the abdomen. It is possible to prevent the tape from coming off. Thus, since the hook material can be fixed at a predetermined position of the base material, the length of the fastening tape can be freely adjusted according to the waist dimension of the user, and the applicable range of the waist dimension can be expanded. become. In addition, since the size adjustment at this time only adjusts the position of the hook material, the size adjustment is facilitated. Therefore, in disposable diapers for middle-aged people with few types of diaper sizes, the applicable range of one size can be expanded, and the size adjustment at this time becomes easy.

  According to a second aspect of the present invention, the fixing means is a protrusion protruding toward the outer surface of the diaper, and the fixed means is the protrusion provided along the diaper width direction of the base material and / or the hook material. The tape-type disposable diaper according to claim 1, wherein a plurality of apertures are fitted to each other.

  The invention according to claim 2 defines specific forms of a fixing means and a fixing means for fixing the hook material to a base material, and the fixing means is provided by a protrusion protruding toward the outer surface side of the diaper. It is comprised and the said to-be-fixed means is comprised by the several opening which the said protrusion provided along the diaper width direction of the said base material and / or hook material fits. Thus, when fixing the hook material, the portion of the base material that penetrates the hook material is folded back to the outer surface of the diaper, and the hook material is fixed at a predetermined position only by fitting the protrusion at the tip of the base material into the opening. It can be fixed to the base material, and the size adjustment of the diaper becomes easy.

  As the present invention according to claim 3, there is provided the tape-type disposable diaper according to claim 1, wherein the fixing means and the fixed means are mechanically joined surface fasteners.

  The invention according to claim 3 defines other forms of fixing means and fixed means for fixing the hook material to the base material, and the fixing means and fixed means are mechanically joined surface fasteners. It is what. As a result, the hook material can be easily fixed at a predetermined position of the base material.

  According to a fourth aspect of the present invention, the base material has a protruding length from both sides of the diaper of 7 to 10 cm, and the hook material has a diaper width direction length of 2 to 3 cm. A tape-type disposable diaper according to the above is provided.

  In the invention of claim 4, the length of protrusion of the diaper from both sides of the diaper as the base material is 7 to 10 cm, and the length of the diaper width direction as the hook material is 2 to 3 cm. It can be secured sufficiently.

  As described above in detail, according to the present invention, it is possible to provide a tape-type disposable diaper that expands the applicable range of the waist and facilitates size adjustment.

It is a partial fracture development view of tape type disposable diaper 1 concerning the present invention. It is the II-II arrow directional view. It is an enlarged view of the fastening tape 10 part. It is a perspective view from the diaper outer surface side of FIG. The hook material 21 is shown, (A) is a perspective view from the diaper surface side, (B) is a perspective view from the diaper outer surface side. It is an enlarged view which shows the usage condition example (the 1) of the fastening tape. It is an enlarged view which shows the usage condition example (the 2) of the fastening tape 10. FIG. It is a perspective view which shows the mounting state example (the 1) of the diaper. It is a perspective view which shows the mounting state example (the 2) of the diaper. It is a perspective view which shows the mounting state of the conventional tape type disposable diaper.

[Disposable diaper structure]
In FIG. 1, a disposable diaper 1 is made of cotton-like pulp or the like, has a certain degree of rigidity, for example, an hourglass shape (or rectangular shape), and is surrounded by crepe paper 5, and the absorbent body 4. A liquid-permeable top sheet 3 made of a perforated or non-porous nonwoven fabric or a perforated plastic sheet disposed so as to cover the surface side (use surface side), and disposed on the back side of the absorbent body, The diaper comprises a leak-proof sheet 6 made of polyethylene or the like disposed so as to cover the entire area of the absorbent body 4 and a non-woven fabric provided on the outer surface side (non-skin contact surface side) of the leak-proof sheet 6. The outer back sheet 2 defining the outer shape and the three-dimensional gather BS standing on the front side are formed on both sides of the paper diaper. The both sides of the diaper are supported together with the leak-proof sheet 6 and the back sheet 2. The side nonwoven fabric 7, 7 for composing the Dofurappu unit SF, and is mainly composed of mechanical joining type fastening tapes 10, 10 Metropolitan provided on the diaper dorsal sides. Further, at the abdomen waist portion and the back waist portion of the paper diaper, the outer back sheet 2, the leak-proof sheet 6 and the liquid-permeable top sheet 3 extend together, and an end flap portion EF where the absorbent body 4 does not exist is formed. ing. In order to improve the adhesion to the wearer, a plurality of elastic elastic members 13, 13... Are stretched between the outer back sheet 2 (including the leakproof sheet 6) and the sheet 14 around the waist on the back side of the diaper. The elastic sheet 12 adhered in the above is stuck, and elastic elastic force is given along the waistline direction.

  8 and 9, when the front and back bodies of the disposable diaper 1 are applied to the wearer's body, the fastening tapes 10 and 10 are brought to the ventral side, and the outer back A paper diaper is mounted by engaging with a front target tape 11 provided on the outer surface of the sheet 2.

In the following, each configuration will be specifically described in detail.
The absorbent body 4 is made of, for example, fluffy pulp and a water-absorbing polymer. In the illustrated example, the absorbent body 4 has a substantially hourglass shape having constricted portions on both sides in order to reduce the contact with the legs. The water-absorbing polymer is mixed in the pulp constituting the absorber, for example, as granular powder. Examples of the pulp include chemical fibers obtained from wood, cellulose fibers such as dissolving pulp, and artificial cellulose fibers such as rayon and acetate. It is preferably used in terms of price. When the absorbent body 4 is surrounded by the crepe paper 5 as in the illustrated example, the crepe paper is interposed between the liquid-permeable surface sheet 3 and the absorbent body 4 as a result, and the absorbency is excellent. The crepe paper 5 quickly diffuses body fluid and prevents urine and the like from returning.

  As the liquid-permeable top sheet 3, a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used. Examples of the material fibers constituting the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton. A nonwoven fabric obtained by an appropriate processing method such as a lace method, a spun bond method, a thermal bond method, an air through method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of flexibility and the spunbond method is excellent in drapeability, and the thermal bond method and the air-through method are excellent in terms of being bulky and soft.

  The leak-proof sheet 6 is made of a sheet material having at least a water shielding property such as an olefin resin sheet such as polyethylene or polypropylene, and is installed in a range covering at least the entire area of the absorber 4 in order to prevent leakage. In recent years, those having moisture permeability are preferably used from the viewpoint of preventing stuffiness. This water-impervious / breathable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. If the sheet thickness is the same, the rigidity is lower than that of the non-porous sheet, which is superior in terms of flexibility.

  As the side nonwoven fabric 7, a water-repellent treated nonwoven fabric or a hydrophilic treated nonwoven fabric can be used from the viewpoint of an important function. For example, if importance is placed on functions such as preventing the penetration of urine, etc., or enhancing the feeling of touch, use a water repellent nonwoven fabric coated with a silicone, paraffin, or alkylchromic chloride water repellent. Is desirable. In addition, if importance is attached to absorbability of body fluids, a method of polymerizing a compound having a hydrophilic group, for example, an oxidation product of polyethylene glycol, in the production process of synthetic fibers, or a metal such as stannic chloride Use a non-woven fabric that has been treated with salt to make the synthetic fiber swelled or porous, such as by partially dissolving the surface to make it porous and depositing metal hydroxide, and applying hydrophilicity by applying capillary action. It is desirable to make it.

  The liquid-permeable top sheet 3 protrudes slightly outward from the side edge of the absorber 4 and is joined to the leak-proof sheet 6. The side nonwoven fabric 7 has an outer portion extending to the outer edge rather than the vicinity of the side edge portion of the absorbent body 4 and is joined to the leakage preventing sheet 6 and the outer back sheet 2, and the laminated sheet portion constitutes a side flap SF. Yes.

  In the side flap portion SF, a plurality of elastic elastic members 8 and 8 in the illustrated example are arranged in the longitudinal direction of the paper diaper, and a planar gather is formed. The flat gathers hold the paper diaper tightly around the legs when worn, thereby improving fit and preventing the paper diaper from shifting.

  On the other hand, a three-dimensional gather BS standing on the surface side is formed by the nonwoven fabric sheet portion on the inner side of the fixed portion of the side nonwoven fabric 7. The three-dimensional gather BS has a standing end near the side edge of the absorbent body 4, and the tip thereof is double-folded along the longitudinal direction of the paper diaper. One elastic elastic member 9 is formed inward of the folded portion. If necessary, a plurality of elastic elastic members are provided, and the three-dimensional gather BS is erected using the elastic force.

  As the elastic elastic members 8 and 9, materials such as styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester and the like that are usually used can be used. .

  The material fibers constituting the side nonwoven fabric 7 can be synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester or polyamide, recycled fibers such as rayon or cupra, and natural fibers such as cotton. The nonwoven fabric obtained by an appropriate processing method such as a spunbond method, an air-through method, a melt blown method, a needle punch method, or a processing method that combines these can be used. In particular, the side that constitutes the side flap portion SF The non-woven fabric 7 is preferably made of a non-woven fabric excellent in air permeability by suppressing the basis weight in order to eliminate the feeling of stickiness and prevent stuffiness.

  The mechanical joining type fastening tape 10 has a base portion of a base material 20 such as plastic, polylaminated nonwoven fabric, non-woven fabric, paper, etc. joined to a diaper, and a protruding side portion of the base material 20 has a surface side (liquid permeability). A hook member 21 having a hook element 22 is attached to a surface on the top sheet 3 side. The hook element 22 is bonded to the hook member 21 with an adhesive so as not to be peeled off. The hook element 22 has a large number of engagement pieces 22a, 22a,. Examples of the shape of the engagement piece 22a include a letter shape, a J shape, a mushroom shape, and a T shape, but any shape may be used. Preferred is a T-shape. In the product state, the fastening tape 10 is folded to the liquid-permeable top sheet 3 side, and the hook element 21 is detachably joined to the side nonwoven fabric 7. The fastening tape 10 will be described in detail later.

  A nonwoven fabric is used as the outer back sheet 2. As the material fibers constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used. A nonwoven fabric obtained by an appropriate processing method such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these non-woven fabrics, non-woven fabrics manufactured by an air-through method in which heated air is sent in the drum conveyance process during the manufacture of the non-woven fabric and the fibers are thermally fused are suitably used. Since the air-through method fuses fibers with the heat of high-temperature air, the air-through method has advantages such as a soft feeling with a high space ratio and bulkiness, and can improve the engagement force of the fastening tape 10. it can.

[Fastening tape 10]
As shown in detail in FIG. 3 and FIG. 4, the fastening tape 10 includes the base material 20 that protrudes laterally from both sides on the back side, a surface on the diaper outer surface side, and a surface on the diaper inner surface side. And a loop-shaped sheet member having an insertion hole between these surfaces, having a hook element 22 on the inner surface of the diaper, and allowing the base material 20 to pass therethrough and moving along the base material 20. It is comprised from the hook material 21 provided.

  As shown in FIG. 5, the hook material 21 is formed by folding a rectangular sheet material 23 such as plastic, polylaminated nonwoven fabric, nonwoven fabric, paper, or the like in the diaper longitudinal direction, and the folded ends are joined to each other at a joint portion 23 a by heat sealing or the like. It is joined. Of the hook material 21, the hook element 22 is joined to substantially the entire surface of the inner surface of the diaper.

  As shown in FIGS. 3 and 4, the distal end portion of the base material 20 is provided with fixing means (protrusions 24 protruding toward the outer surface of the diaper) on the outer surface of the diaper. The base material 20 and / or the hook material 21 are provided with fixed means (open holes 25, 26, respectively) that engage with the fixing means (projections 24). A plurality of the apertures 25 are formed along the diaper width direction closer to the base end portion of the substrate 20, and three in the illustrated example. A plurality of the openings 26 are formed in the diaper width direction in the hook material 21 along the diaper width direction, and three in the illustrated example.

  In order to fix the hook material 21 to the base material 20, the hook material 21 is moved to a predetermined position, the portion of the base material 20 penetrating the hook material 21 is folded back toward the outer surface of the diaper, and the protrusion 24 is opened. Insert into holes 25 or 26.

  When the diaper 1 is mounted, for a user whose diaper is too large (a user whose waist is thin), the hook member 21 is connected to the base end side of the base member 20 as shown in FIGS. , The portion of the base material 20 penetrating the hook member 21 is folded back to the outer surface side of the diaper, and the protrusion 24 at the tip end portion is inserted into the opening 25 at the base end portion of the base material. As a result, the fastening tape 10 is shortened, and even if the fastening tape 10 is brought to the abdomen, it is difficult to cause a situation in which the fastening tapes on both sides overlap with each other, and the diaper can be worn while being fitted to the body. Clearance and leakage can be prevented.

  On the other hand, for a user whose diaper is too small (a user with a thick waist), as shown in FIGS. 7 and 9, the hook material 21 is moved to the tip side of the base material 20, and the hook material 21 is moved. The base material 20 of the penetrating part is folded back to the outer surface side of the diaper, and the protrusion 24 at the tip of the base material is inserted into the opening 26 of the hook material 21. As a result, the fastening tape 10 becomes longer, and the fastening tape 10 can be firmly fixed to the front target tape 11 without forcing the fastening tape 10 toward the abdomen. Marking can be suppressed and the tape can be prevented from coming off.

  As a result, since the hook material 21 is provided so as to be movable along the base material 20 and can be fixed to the base material 20 at an arbitrary position, the length of the fastening tape 10 according to the waist dimension of the user. Can be freely adjusted, and the applicable range of the waist dimension can be expanded. In addition, since the size adjustment at this time only adjusts the fixing position of the hook member 21, the size adjustment is facilitated. Therefore, in disposable diapers for middle-aged people with few types of diaper sizes, the applicable range of one size can be expanded, and the size adjustment at this time becomes easy.

  In addition, the fastening tape 10 is used because the hook element 22 is joined to almost the entire surface of the hook material 21 and the portion of the base material 20 penetrating the hook material 21 is folded back to the outer surface side of the diaper. Unlike a fastening tape in which a hook element is fixed slightly inward from the tape front end portion, there is no pinch allowance at the tape front end portion, so that the possibility of the child peeling off the fastening tape 10 while wearing is reduced. Further, even when a physically handicapped person moves with the abdomen facing down, since the front end of the tape 11 is fixed to the front target tape 11, the structure is difficult to peel off.

  Further, in the present fastening tape 10, the length of the tape can be adjusted by adjusting the fixing position of the hook material 21, so that the fastening tape is folded into a plurality of stages as in the prior art, and temporarily bonded with an adhesive. Unlike fastening, the temporary tacking of the adhesive is released at the time of use and unintentional spreading occurs, and the temporary tacking adhesive does not stick to an unintended unnecessary part during fastening tape deployment.

  The base material 20 preferably has a protruding length from both sides of the diaper of 7 to 10 cm, and the hook member 21 preferably has a diaper width direction length of 2 to 3 cm, but is not limited thereto. Absent. For example, when the protruding length of the base material 20 is 8 cm and the length of the hook material 21 in the diaper width direction is 3 cm, the hook material 21 can move about 4 cm along the base material 20, and the waist dimension of the diaper 1 is 300 mm. It will be able to handle up to 450mm.

  The protrusion 24 is a columnar or cylindrical protrusion formed of plastic, metal or the like with a diameter of about 2 to 5 mm and a height of about 3 to 7 mm. The protrusion 24 is formed in a hook shape with the tip end bent toward the center line side of the diaper longitudinal direction, or by tilting the tip end toward the center line side of the diaper longitudinal direction as shown in FIG. The state of being inserted into the openings 25 and 26 can be maintained satisfactorily. It should be noted that the formation of the protrusion 24 at the tip of the base material 20 also has an effect of preventing the hook material 21 from falling off.

  In addition, the material of the said base material 20 can fix the other hook element 22 to one base material 20 even if the base materials 20 and 20 overlap when the fastening tapes 10 and 10 of both sides are brought in on the stomach side. Thus, it is preferable to use a material that can fix the hook material, for example, a nonwoven fabric.

[Other examples]
(1) In the above embodiment, the protrusion 24 is provided as a fixing means provided at the tip of the base material 20 penetrating the hook material 21, and the opening 25 is provided as the fixed means provided in the base material 20 and the hook material 21. 26 is provided, but the fixing means and the fixed means can be mechanically joined surface fasteners.

  DESCRIPTION OF SYMBOLS 1 ... Paper diaper, 2 ... Outer surface back sheet, 3 ... Liquid-permeable top sheet, 4 ... Absorber, 5 ... Crepe paper, 6 ... Leak-proof sheet, 7 ... Side nonwoven fabric, 8.9.13 ... Elastic elastic member, 10 ... Fastening tape, 11 ... Front target tape, 12 ... Elastic sheet, 14 ... Base material sheet, 20 ... Base material, 21 ... Hook material, 22 ... Hook element, 23 ... Sheet material, 24 ... Protrusion, 25, 26 ... Opening

Claims (4)

Tape-type disposable diapers that have fastening tapes attached to both sides of the diaper so as to protrude sideways, and that are fastened to the ventral surface of the diaper so that the diaper is attached to the body. In
The fastening tape has a base material protruding laterally from both sides on the back side, a surface on the outer side of the diaper and a surface on the inner side of the diaper, and a loop-shaped sheet member having an insertion hole between these surfaces. And has a hook element on the inner surface of the diaper, and includes a hook material that is inserted through the base material and is movable along the base material.
The distal end portion of the base material is provided with a fixing means on the outer surface of the diaper, and the base material and / or the hook material is provided with a fixing means that engages with the fixing means, and penetrates the hook material. A tape-type disposable characterized in that the hook material can be fixed at a predetermined position of the base material by folding the base material of the base portion to the outer surface side of the diaper and engaging the fixing means and the fixing means. Diapers.   The fixing means is a protrusion protruding to the outer surface side of the diaper, and the fixed means is a plurality of apertures into which the protrusions provided along the diaper width direction of the base material and / or the hook material are fitted. The tape-type disposable diaper according to claim 1.   The tape-type disposable diaper according to claim 1, wherein the fixing means and the fixed means are mechanically joined surface fasteners.   The tape-type disposable diaper according to any one of claims 1 to 3, wherein the base material has a protruding length from both sides of the diaper of 7 to 10 cm, and the hook material has a diaper width direction length of 2 to 3 cm.

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