JP2010227505A - Trunks type diaper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a trunks type diaper to be easily fitted to parts around thighs. <P>SOLUTION: Pleat parts 20 onto which a plurality of pleats releasably adheres are formed in the parts 14 around the thighs in the diaper 100. Thus, when the thighs of a wearing person are put through the parts 14 around the thighs in wearing the diaper 100, the thighs of the wearing person, which are thicker than the size of the openings 14a of the parts 14 around the thighs, widen the pleat parts 20 in the width direction of the parts 14 around the thighs (in the circumferential direction of the openings 14) so as to release the adhesion of the pleats, and then, allow the parts 14 around the thighs to be enlarged to have a size to fit the thigh parts of the wearing person. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a trunks type diaper.

Conventionally, for example, a trunks-type diaper is known as a pants-type paper diaper including a waist circumference part covering the waist circumference of the wearer and a leg circumference part covering the leg circumference of the wearer (for example, Patent Document 1). reference.).
A slit-shaped side opening is provided around the leg of this trunks-type diaper, and the fastening part on the back body side is fastened to the front body side according to the size around the wearer's leg. The leg opening is fitted to the body while closing the side opening.

Utility Model Registration No. 3131265

  However, in the case of the above-mentioned Patent Document 1, if the fastening part is detached or displaced due to a change in the movement or posture of the wearer, the side opening part is easily opened, and the fit property of the leg surrounding part is impaired. As a result, a gap is formed between the leg periphery and the body, which causes a problem that body fluid such as urine is likely to leak.

  The objective of this invention is providing the trunks type diaper which fits easily around a leg.

In order to solve the above problems, the invention described in claim 1
An abdomen located on the abdomen side of the wearer, a dorsal side part located on the dorsal side of the wearer, and a crotch part located between the abdomen side and the dorsal side and located on the crotch of the wearer Trunks having an absorbent body having two legs surrounding portions located around the legs of the wearer between the ventral side portion and the dorsal side portion and on both sides in the width direction of the crotch portion In type diapers,
The leg periphery is provided with an elastic member that expands and contracts so that the opening around the leg is in close contact with the wearer's leg,
A pleat part in which a plurality of folds formed by repeated mountain folds and valley folds in a direction in which the elastic member expands and contracts is releasably bonded to at least one of the leg side part and the back side part side in the leg surrounding part. Is formed.

The invention according to claim 2 is the trunks type diaper according to claim 1,
The pleat portion is bonded with stronger strength toward the opening side of the leg periphery.

The invention according to claim 3 is the trunks type diaper according to claim 1 or 2,
A plurality of rows of pleats arranged in a direction toward the opening of the leg periphery is formed in the leg periphery,
The mountain folds and valley folds of adjacent pleat portions are formed alternately.

According to the present invention, the trunks-type diaper has two leg surrounding portions located around the wearer's leg, and at least one of the ventral side and the back side in the leg surrounding portion, Since the pleats are formed by releasably bonding a plurality of folds that are folded and folded repeatedly by mountain folds and valley folds, when wearing the trunks diaper, the legs (thighs) of the wearer As the pleat portion expands and deforms in accordance with the shape of), the leg periphery can be fitted around the wearer's leg.
In other words, since the pleats of the pleats are releasably bonded, when the trunks type diaper is worn, the wearer's leg is passed through the leg circumference, so that the size of the opening around the leg circumference Widen the pleats in the width direction around the legs so that the thick thighs of the wearer peel off the adhesion between the heels and heels, and expand the size around the legs to fit the wearer's thighs Can do.
Therefore, it can be said that this trunks type diaper is a diaper which is easily fitted around the legs of the wearer. And the body fluid leak from a leg periphery part can be reduced by making the leg periphery part of this trunks type diaper fit the wearer's leg periphery.

It is the top view which developed the trunks type diaper in Embodiment 1 of the present invention. It is a perspective view of a trunks type diaper in Embodiment 1 of the present invention. It is a front view which shows the trunks type diaper of Embodiment 1. FIG. It is an enlarged view which shows the pleat part of the opening end in a leg periphery part. It is a front view which shows the trunks type diaper of Embodiment 2. FIG.

  Hereinafter, a trunk type diaper to which the present invention is applied will be described.

(Embodiment 1)
FIG. 1 is a developed view of a trunks-type diaper (hereinafter referred to as “diaper”) 100 according to the present invention, and FIG. 2 is a perspective view of the diaper 100 assembled.

  As shown in FIGS. 1 and 2, the diaper 100 includes a ventral part 11 located on the abdomen side of the wearer, a dorsal part 12 located on the dorsal side of the wearer, a ventral part 11, and a spine. The crotch part 13 located between the side parts 12 and located in the crotch of the wearer, and the legs of the wearer between the abdomen part 11 and the dorsal part 12 and on both sides in the width direction of the crotch part 13 A diaper main body 2 including a leg peripheral portion 14, 14, a ventral side portion 11, and a back side portion 12, and a diaper main body portion 2 having a waist peripheral portion 15 positioned around the waist of the wearer, and the like. An absorptive main body 1 to be attached to.

  The absorbent main body 1 includes an absorbent body 1a, a liquid-permeable top sheet 1b formed by wrapping the absorbent body 1a, and the like, and passes through the crotch portion 13 between the abdominal side portion 11 and both legs. It is arranged at a position over the side portion 12.

  Absorbent body 1a is made of, for example, an absorbent core formed by combining an absorbent material such as cotton or pulp, or a sheet-like base material such as fiber or film, and a superabsorbent resin such as a superabsorbent polymer ( (Not shown) is covered with a liquid-permeable crepe paper (not shown) or the like. The absorber 1a may have a single layer structure or a structure divided into a plurality of layers.

The top sheet 1b is a liquid-permeable sheet that is provided on a surface that comes into contact with the human body when the diaper 100 is worn, and plays a role of receiving body fluid and transporting it to the absorber 1a.
Examples of the liquid-permeable sheet include those formed of a porous or non-porous nonwoven fabric, a porous plastic sheet, and the like. As the material fiber constituting the nonwoven fabric, either natural fiber or chemical fiber may be used.
Examples of natural fibers include cotton, cellulose (wood pulp), wool, silk, hemp and the like.
Examples of chemical fibers include olefins such as polyethylene (PE) and polypropylene (PP), polyesters including polyester (PET), polyamides such as nylon and aramid, and acrylics such as polyacrylonitrile (PAN). In addition to synthetic fibers, regenerated fibers such as rayon and cupra, and semisynthetic fibers such as cellulose acetate and promix can be used. Moreover, the bicomponent fiber (mixed fiber) etc. which combined the said raw material suitably other than the PE / PP mixed nonwoven fabric and the PE / PET mixed nonwoven fabric can also be used.

  As a method for producing a nonwoven fabric from these fiber materials, a known method can be used as appropriate. For example, a water punch method in which fibers are entangled with each other with a high-pressure water stream or a fiber is produced by a method similar to papermaking. Wet methods such as papermaking, chemical bond methods that are bonded with adhesives, dry methods such as thermal bond methods that are bonded with low melting point polymers and self-melting fibers, needle punch methods that are bonded by needling with special needles, polymer solutions And a direct method such as a flash spinning method in which a reticular fibril is formed by ejecting the slag from the die. Moreover, a nonwoven fabric can be manufactured also by the method etc. which combined these methods.

  The diaper main body 2 is located on the outside when the diaper 100 is worn, and the outer sheet 3a constituting the liquid-impervious sheet 3 and the liquid-impervious sheet 3 are formed on the surface side that contacts the human body when the diaper 100 is worn. The inner surface sheet 3b is provided, and an elastic member such as rubber thread is disposed at a predetermined position between the outer surface sheet 3a and the inner surface sheet 3b.

The liquid-impervious sheet material used as the outer surface sheet 3a and the inner surface sheet 3b is, for example, a sheet material having at least water shielding properties such as polyethylene, and is a sheet material having moisture permeability from the viewpoint of preventing stuffiness. preferable. As a sheet material having this water barrier property and moisture permeability, for example, a sheet is formed by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretched in a uniaxial or biaxial direction. The microporous sheet material obtained by is preferably used.
In addition, a laminated nonwoven fabric composed of a liquid-impermeable film layer and a breathable nonwoven layer may be used. A laminated nonwoven fabric is a nonwoven fabric called a laminated nonwoven fabric which laminated | stacked the nonwoven fabric on the polyethylene sheet etc., for example, and is a nonwoven fabric which has both liquid impermeability and air permeability.

The waist circumference portion 15 forms a waist circumference opening 15a in which the free end of the abdominal side portion 11 and the free end of the back side portion 12 face each other to form an edge. A surrounding elastic member 152 is provided. The waist part 15 is located in the upper part of the diaper 100.
Since the waist circumference elastic member 152 is disposed on the waist circumference portion 15, the waist circumference portion 15 expands and contracts, so that the diaper 100 can be suitably worn while being closely attached to the wearer's waist circumference.
Moreover, the abdominal elastic member 151 is arrange | positioned along the abdominal circumference direction in the position which overlaps with the absorber main part 1 attached to the diaper main-body part 2 of the abdominal side part 11. As shown in FIG. The abdominal side elastic member 151 is provided across the width direction of the abdominal side portion 11 so as to curve in a convex curve toward the crotch portion 13, and causes the abdominal side portion 11 to be in close contact with the wearer. Expand and contract.

The two leg periphery parts 14 and 14 of the diaper main-body part 2 have the opening part 14a located in the lower part of the diaper 100, The some elastic member is distribute | arranged to the leg periphery part 14. As shown in FIG.
Specifically, the crotch 13 protrudes from the one leg periphery 14 on the abdomen 11 side to the other leg periphery 14 on the abdomen 11 side toward the back side 12. A front side elastic member 141 that is curved and a leg side portion in the crotch 13 extending from one leg surrounding portion 14 on the back side portion 12 side to the other leg surrounding portion 14 on the back side portion 12 side. And a rear elastic member 142 that is curved in a curved shape so as to protrude toward the eleventh side.
The front elastic member 141 and the rear elastic member 142 are disposed so as to expand and contract so that the opening 14a of the leg periphery 14 closely contacts the wearer's leg.

A pleat portion 20 is formed on the abdominal side portion 11 side which is an edge of the opening portion 14a in the leg periphery portion 14.
The pleat portion 20 has a plurality of ridges formed by folding the liquid-impermeable sheet 3 constituting the leg-around portion 14 into a substantially bellows shape.

Specifically, as shown in FIG. 3 and FIG. 4, the pleated portion 20 is formed such that the liquid-impervious sheet 3 on the abdominal side portion 11 side in the leg periphery portion 14 has a mountain fold and a valley in the expansion and contraction direction of the front elastic member 141. It is formed by releasably bonding a plurality of folds formed by repeated folding.
That is, in the pleated portion 20, the liquid-impermeable sheet 3 of the leg periphery 14 is folded so that the size of the opening 14a of the leg periphery 14 in the unused diaper 100 is initially minimized. In addition, the pleat part 20 is formed so that the initial size of the opening part 14a of the leg periphery part 14 may be smaller than the size of a general wearer's thigh that is a use target of the diaper 100.
And the crease of the crease in the pleat part 20 extends substantially in the vertical direction, and the leg periphery part 14 is thickened in the width direction (left-right direction) by widening a plurality of creases in the pleat part 20. Transforms into In addition, the pleat part 20 is formed in a shape in which a groove or a gap is not easily formed between the leg periphery part 14 and the leg (thigh part) of the wearer due to a crease line or a crease of the pleat part 20.

Adhesion for temporarily fixing the creases and creases so as to form the pleat portion 20 is performed by, for example, heat sealing, ultrasonic sealing, hot melt, or the like.
In particular, the temporary fixing of the plurality of wrinkles in the pleat portion 20 is bonded to the opening 14a of the leg periphery 14 with stronger strength toward the edge side. Due to the difference in the adhesive strength, the opening side of the leg surrounding portion 14 that is the wearer's knee side is less likely to peel, and the upper side of the leg surrounding portion 14 that is the base side of the wearer's leg is easier to peel.

Thus, since the plurality of ridges of the pleat portion 20 are detachably bonded, when the diaper 100 is worn, the leg of the wearer is passed through the leg periphery portion 14, so that the original opening 14 a The wearer's thigh, which is thicker than the above size, spreads the pleat 20 in the width direction of the leg periphery 14 (the circumferential direction of the opening 14) so that the adhesion between the heel and the heel is peeled off. The size can be expanded to fit the wearer's thigh.
In particular, the temporary fixing of the heel of the pleat part 20 is bonded with stronger strength toward the edge side of the opening part 14a of the leg periphery part 14, and the leg periphery part 14 spreads toward the base of the wearer's leg. Since the pleat part 20 opens so that the opening end of 14 is tapered, the pleat part 20 is deformed in accordance with the shape of the wearer's thigh, and the leg periphery part 14 becomes a human body (thigh). It is easy to fit.
Furthermore, since the leg periphery 14 can be brought into close contact with the wearer's leg by contraction of the front elastic member 141 and the rear elastic member 142, the leg periphery 14 and the wearer can be attached even after the pleat portion 20 has spread and opened. A gap between the leg and the leg (thigh) is less likely to occur, and urine leakage such as urine from the leg periphery 14 is less likely to occur.

As described above, the liquid-impervious sheet 3 constituting the leg periphery 14 is folded and temporarily attached to the leg periphery 14 of the diaper 100 according to the present invention so that a plurality of heels can be peeled off. When the diaper 100 is worn, when the pleat portion 20 spreads and deforms according to the shape of the wearer's thigh, the leg periphery portion 14 is attached to the wearer's thigh. Fit around the legs.
And the body fluid leak from the leg periphery part 14 can be reduced by making the leg periphery part 14 of the diaper 100 fit the wearer's leg periphery.

(Embodiment 2)
Next, Embodiment 2 of the trunks type diaper according to the present invention will be described. In addition, the same code | symbol is attached | subjected to the same part as Embodiment 1, and only a different part is demonstrated.

As shown in FIG. 5, the diaper 110 includes a plurality of pleat portions 30, 31, and 32 (for example, three rows of upper, middle, and lower tiers) formed in the leg periphery portion 14.
As shown in FIG. 5, the pleat portions 30, 31, and 32 are formed so as to be aligned in the vertical direction toward the edge side of the opening portion 14 a of the leg periphery portion 14 in the leg periphery portion 14. A pleat portion 30, a pleat portion 31, and a pleat portion 32 are provided in order from the opening end of 14.
Each of the pleat portions 30, 31, and 32 has a ridge in the width direction of the leg periphery 14, which is the stretch direction of the front elastic member (141). A plurality of folds formed by repeated folding and valley folding are formed so as to be peelable. Note that the crease of the fold in the pleat portion extends substantially in the vertical direction.

  In particular, the mountain folds and valley folds of the pleat portions adjacent to each other in the vertical direction are alternately formed. Specifically, the mountain folds and valley folds of the pleat part 30 and the pleat part 31 are arranged alternately, and the mountain folds and valley folds of the pleat part 31 and the pleat part 32 are arranged alternately.

In this way, since the plurality of ridges of the pleat portions 30, 31, 32 are detachably bonded, when the diaper 110 is worn, the wearer's leg is passed through the leg surrounding portion 14, The pleats 30, 31, and 32 are spread in the width direction (left and right direction) of the leg periphery 14 so that the wearer's thigh peels off the adhesion between the heel and the heel. Deformed into a size that fits the thigh.
In particular, the mountain folds and valley folds of the pleats 30, 31, 32 adjacent to each other in the vertical direction are formed so as to be alternately arranged, and the uppermost stage corresponding to the base side of the relatively thick leg in the thigh Even if the pleat portion 32 is widened by the thick thigh, the crease line of the pleat portion 32 is not directly connected to the crease line of the pleat portion 31 below the pleat portion 32. It is difficult to affect the deformation of the pleated portion 31. And the pleat part 31 of the middle stage is extended according to the thickness of the thigh which the pleat part 31 corresponds.
Similarly, the deformation in which the middle pleat portion 31 spreads is less likely to affect the deformation of the lower pleat portion 30, and the lowermost pleat portion 30 has a thigh thickness corresponding to the pleat portion 30. Depending on the spread.

As described above, the liquid-impervious sheet 3 constituting the leg periphery 14 is folded and temporarily attached to the leg periphery 14 of the diaper 110 according to the present invention so that a plurality of heels can be peeled off. Plural rows of pleats 30, 31, 32 are formed in the lower, middle, and upper stages of the leg periphery 14, respectively, so that when the diaper 110 is worn, it depends on the shape of the wearer's thigh As the pleat portions 30, 31, and 32 are spread and deformed, the leg periphery portion 14 can be fitted around the wearer's leg.
In particular, since each pleat part 30, 31, 32 extends independently according to the thickness of each part of the wearer's thigh, each part extending from the base of the leg to the knee side. Even if the thigh is different in thickness, the leg periphery 14 can be easily fitted to the thigh and can be deformed.
And the body fluid leak from the leg periphery part 14 can be reduced by making the leg periphery part 14 of the diaper 110 fit to a wearer's leg periphery.

  In the above embodiment, the diaper in which the pleat part is formed on the ventral part 11 side in the leg periphery part 14 has been described, but the present invention is not limited to this, and for example, the pleat part is Further, it may be formed on the back side portion 12 side in the leg periphery portion 14, and the pleat portion may be formed on both the abdominal side portion 11 side and the back side portion 12 side.

Further, the angle of the folds of the mountain fold and the valley fold for forming the plurality of ridges constituting the pleat portion may be, for example, an acute angle or an obtuse angle, and the fold line is rounded. May also be angular.
Moreover, even if it arranges the shape of several ridges which comprise a pleat part, you may make it the shape of each ridge differ.

  In addition, it is needless to say that other specific detailed structures can be appropriately changed.

DESCRIPTION OF SYMBOLS 1 Absorbent main-body part 1a Absorber 1b Top sheet 2 Diaper main-body part 3 Impervious sheet 11 Abdomen side part 12 Back side part 13 Crotch part 14 Leg circumference part 14a Opening part 141 Front side elastic member 142 Back side elastic member 15 Waist Surrounding part 15a Waist opening part 151 Ventral elastic member 152 Waist elastic member 20 Pleated part 30, 31, 32 Pleated part 100 Diaper (trunks type diaper)
110 diapers (trunks type diapers)

Claims (3)

An abdomen located on the abdomen side of the wearer, a dorsal side part located on the dorsal side of the wearer, and a crotch part located between the abdomen side and the dorsal side and located on the crotch of the wearer In the trunks type diaper having two leg surrounding portions located around the legs of the wearer on both sides in the width direction of the crotch part, and having an absorbent body,
The leg periphery is provided with an elastic member that expands and contracts so that the opening around the leg is in close contact with the wearer's leg,
A pleat part in which a plurality of folds formed by repeated mountain folds and valley folds in a direction in which the elastic member expands and contracts is releasably bonded to at least one of the leg side part and the back side part side in the leg surrounding part. Trunks-type diapers characterized by being formed.   2. The trunks-type diaper according to claim 1, wherein the pleat portion is bonded with stronger strength toward an opening side of the leg periphery portion. A plurality of rows of pleats arranged in a direction toward the opening of the leg periphery is formed in the leg periphery,
The trunks type diaper according to claim 1 or 2, wherein mountain folds and valley folds of adjacent pleat portions are alternately formed.

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