KR20010095126A - Disposable wearing article - Google Patents

Abstract

PURPOSE: To provide a disposable wearing article in which the stretchablity of a portion having a target tape installed thereto is never lost. CONSTITUTION: In this disposable wearing article 1, a tape fastener 5 installed at both side edges 1a of a front girth area 20 and the non-stretchable target tape 6 for fixing the tape fastener 5 is installed on the outer surface of a rear girth area 22. The front and rear girth areas 20 and 22 and a under-crotch area 21 are elastically stretchable in the vertical and transverse directions. The target tape 6 has plurality of slits 8 vertically extending at a required transverse dimensional interval, and it is installed to the front girth area 20 laid substantially non-stretchable state.

Description

Disposable Wear Items {DISPOSABLE WEARING ARTICLE}

The present invention relates to disposable wear articles such as disposable diapers, diaper covers, training pants and incontinence pants.

Open-type disposable diapers with tape fasteners extending laterally outwardly from either edge of either front or back body circumference region, or with a target tape attached to the outer surface of any of the front and back body circumference regions, are known. As an example of a diaper, a hook member known under a trade name such as magic tape or velcro tape and a hook member in a loop member are attached to the inner surface of the tape fastener extending laterally outward from both edge portions of the back circumference region of the diaper, A rectangular loop member, which becomes the target tape, is attached to a predetermined portion of the outer surface of the front body circumference region to form a landing zone for the hook member. In a diaper, a tape fastener is detachably fixed to a target tape, and the area | region of the front and back trunk of a diaper is connected.

As such a diaper, it is disclosed by Unexamined-Japanese-Patent No. 9-38139, Unexamined-Japanese-Patent No. 9-191908, Unexamined-Japanese-Patent No. 10-309299, and Unexamined-Japanese-Patent No. 10-328237. have. The diaper disclosed in these publications has a non-stretchable loop member attached as a target tape.

In the elastic elastic diaper, when the non-stretch loop member serving as the target tape is attached to the front circumferential region under non-expansion, the elasticity of the portion of the front circumferential region where the target tape is located is constrained by the target tape. As a result, the elasticity of the diaper is substantially lost at the portion where the target tape is attached.

An object of the present invention is a wearable article having elastic elasticity, in which case the elasticity of the portion where the target tape is attached is lost even when the non-elastic target tape is attached to one outer surface of the front and rear body circumferential region under non-extension. It is to provide a disposable wear article without.

1 is a partially broken perspective view of a diaper;

2 is a sectional view taken along the line A-A of the diaper of FIG.

3 is a perspective view of the diaper of FIG. 1, shown in a worn state with the front and back torso circumferential regions joined together;

4 is a cross-sectional view taken along the line B-B in FIG.

5 is a perspective view of a diaper of a different form from that in FIG.

Fig. 6 is a perspective view of the diaper of Fig. 5 in a worn state with the front and back torso circumferential regions connected to each other.

7 is a perspective view of a diaper different from that in FIGS. 1 and 5.

8 is a perspective view of the diaper of FIG. 7 in a worn state with the front and back torso circumferential regions connected to each other.

<Explanation of symbols for main parts of the drawings>

1: disposable diaper (disposable wear item)

1a: Both edges

1b: both edges

2: liquid-permeable surface sheet

3: impermeable backing sheet

4: liquid absorbent core

5: tape fastener

6: target tape

6a: both edges

6b: top edge

6c: bottom edge

8: seam, slit

8a: first slit

8b: second slit

9: glue

20: area around the front torso

21: crotch area

22: area around the torso

The premise of the present invention for solving the above problems is a front body circumferential region located on the abdomen side of the wearer, having both side edge portions extending in the longitudinal direction in parallel to each other, both end edge portions extending in the transverse direction in parallel to each other, And a crotch region positioned between the back torso circumference region and the front to back torso circumference region located on the wearer's back side, wherein tape fasteners are attached to both edges of either front to back torso circumference region, and the front to back torso circumference. It is a disposable wear article with a non-stretchable target tape which detachably fixes the said tape fastener to the outer surface of the other side of the area | region.

In this premise, a feature of the present invention is that at least the front and rear body circumference region of the front and rear body circumference region and the crotch region has elasticity elastically in at least the transverse direction of the longitudinal direction and the lateral direction, and the target tape is And a plurality of slits spaced apart in the transverse direction by a predetermined dimension and extending in the longitudinal direction, and attached to the trunk circumferential region substantially unextended in the transverse direction. Here, being substantially unextended is a concept including both a state in which the trunk circumferential region is not extended at all and a state in which the trunk circumference region is slightly extended.

As an example of an embodiment of the present invention, the target tape includes both edges extending in the longitudinal direction to face each other in the transverse direction, and upper and lower edges extending in the transverse direction to face each other in the longitudinal direction. A slit extends near the top edge and near the bottom edge of the target tape.

As another example of an embodiment of the present invention, the target tape includes two edges extending in the longitudinal direction to face each other in the transverse direction, and upper and lower edges extending in the transverse direction to face each other in the longitudinal direction, The slit is formed of a first slit extending from the upper edge of the target tape to the vicinity of the lower edge, and a second slit extending from the lower edge of the target tape to the vicinity of the upper edge, wherein the first slit and the second slit are They are alternately arranged in the transverse direction.

As another example of the specific example of this invention, the said slit is formed with the sewable seam.

As another example of the embodiment of the present invention, the target tape is attached to the worn article through a plurality of adhesives spaced in the transverse direction by a predetermined dimension and extending in the longitudinal direction.

As another example of the specific example of this invention, the said wearing article is comprised from the liquid-absorbing core interposed between the liquid permeable surface sheet, an impermeable back sheet, and the said front and back surface sheet.

Referring to the accompanying drawings, the disposable wearing article according to the present invention will be described in detail by way of an example of an open disposable diaper as follows.

1 and 2 are partially broken perspective views of the diaper 1, and a cross-sectional view taken along line A-A of the diaper 1 of FIG. The diaper 1 is a liquid absorbent core interposed between a liquid permeable surface sheet 2, an impermeable back sheet 3, a surface sheet 2 and a back sheet 3, and bonded to an inner surface of the surface sheet 2. Let 4) be a basic structural member.

The diaper 1 has a front torso region 20 located on the abdomen side of the wearer, a back torso region 22 located on the back side of the wearer, and a crotch region located between the front and back torso region 20, 22 ( 21). The diaper 1 extends in the longitudinal direction parallel to each other, both edges 1a that arc in the crotch region 21 toward the transverse inward direction of the diaper 1, and both ends extending in the transverse direction parallel to each other. Edge portion 1b.

The diaper 1 is formed of a nonwoven fabric having the front sheet 2 and the back sheet 3 elastically elastic in the longitudinal direction and the transverse direction. The surface sheet 2 and the back sheet 3 are intermittently fixed in a state where portions of these sheets 2 and 3 which extend from the peripheral edge of the core 4 to the longitudinal outward and the transverse outward are overlapped with each other. .

The tape fasteners 5 extending laterally outward are attached to both side edge portions 1a of the rear body circumferential region 22. A target tape 6 serving as a fixed area of the tape fastener 5 is attached to the outer surface of the back sheet 3 in the trunk circumferential region 20.

The tape fastener 5 has its proximal end 5b interposed between the surface sheet 2 and the back sheet 3, and is fixed to the inner surfaces of these sheets 2, 3 via an adhesive (not shown). . The hook member 7 in the mechanical fastener is attached to the inner surface of the free end 5a of the tape fastener 5 via an adhesive (not shown).

The target tape 6 is a horizontally long rectangle formed by a loop member in the mechanical fastener, and has both side edges 6a extending in the longitudinal direction parallel to each other, and upper and lower edges 6b and 6c extending in the horizontal direction parallel to each other. Has The target tape 6 is formed with a plurality of tearable sewing lines 8 (slits) arranged in the longitudinal direction and vertically spaced apart from each other by terminating the upper and lower edges 6b and 6c. The target tape 6 is attached via a plurality of adhesives 9 extending in the longitudinal direction between each of the sewing lines 8 adjacent to the back sheet 3 in an unextended state. The adhesives 9 are arranged spaced apart by a predetermined dimension in the transverse direction.

3 and 4 are perspective views of the diaper 1 shown in a worn state in which the front and rear trunk circumferential regions 20 and 22 are connected, and a cross-sectional view taken along line BB of FIG. 3, and in FIG. It is fixed to the outer surface of the tape 6 so that attachment and detachment are possible, and the trunk opening 10 and the pair of right and left leg openings 11 are formed. When the diaper 1 is worn, each of the front and rear trunk circumferential regions 20 and 22 extends laterally outward, and thus the target tape 6 is tensioned laterally outward. The target tape 6 is ruptured at the seam 8 by the transverse outward tension and divided into a plurality.

The surface sheet 2 and the back sheet 3 extending between the adhesives 9 each have the elastic stretchability of these sheets 2 and 3 because the target tapes 6 are divided in the seam 8. The sheet 6 can be extended laterally outward without restraining the tape 6.

In FIG. 3 and FIG. 4, the front sheet 2 and the back sheet 3 extend laterally outward between each of the target tapes 6, and each of the plurality of divided target tapes 6 is a tape fastener 5. Are spaced apart by a predetermined dimension in the transverse direction except for the joining sites with the &lt; RTI ID = 0.0 &gt; In the diaper 1, when the target tape 6 and the tape fastener 5 are released from each other, the surface sheet 2 and the back sheet 3 are contracted and the target tapes 6 which are laterally spaced apart from each other. This leads to.

5 and 6 are perspective views of the diaper 1 of FIG. 5 shown in a wearing state in which the front and rear torso circumferential regions 20 and 22 are connected with each other. In 6, the inner surface of the tape fastener 5 is detachably fixed to the outer surface of the target tape 6. The diaper 1 has a liquid-absorbent core 4 interposed between the liquid-permeable surface sheet 2 and the liquid-impermeable back sheet 3, and has a longitudinal direction in the front torso region 20 and a rear torso region 22. , The crotch region 21 positioned between the front and rear body circumference regions 20 and 22, and both side edge portions 1a extending in the longitudinal direction in parallel to each other, and both end edge portions extending in the transverse direction in parallel to each other ( It is the same as FIG. 1 in the point which has 1b).

In the diaper 1, the back sheet 3 is formed of a plastic film having elasticity in the transverse direction, and the surface sheet 2 is made of a non-stretchable nonwoven fabric having a shape almost the same as that of the back sheet 3 under extension. Formed. The surface sheet 2 and the back sheet 3 extend in the longitudinal direction outward and the transverse outward from the peripheral edge of the core 4, with the back sheet 3 extending laterally. The part 3) is intermittently stuck. The core 4 is joined to the inner surface of the surface sheet 2. In FIG. 5, the elongated state of the back sheet 3 is released, and the surface sheet 2 also contracts due to the contraction of the back sheet 3, and a large number of portions of the surface sheet 2 overlapping the back sheet 3 are formed. Wrinkles are formed.

The tape fasteners 5 extending laterally outward are attached to both side edge portions 1a of the rear body circumferential region 22. A target tape 6 serving as a fixed area of the tape fastener 5 is attached to the outer surface of the back sheet 3 in the front body circumferential region 20. The hook member 7 is attached to the inner surface of the tape fastener 5. The target tape 6 is a horizontally long rectangle formed by a loop member, and is divided in two at almost the center of the front body circumference region 20.

The target tape 6 is formed with a plurality of slits 8 extending in the longitudinal direction between the upper edge 6b and the lower edge 6c. The slits 8 are spaced apart by a predetermined dimension in the transverse direction of the target tape 6. The target tape 6 is attached via a plurality of adhesives 9 extending in the longitudinal direction between each of the slits 8 adjacent to the back sheet 3 in an unextended state.

In the front torso region 20 of the diaper 1, as shown in FIG. 6, the slit 8 of the target tape 6 widens laterally outward, thus extending between the adhesives 9. The surface sheet 2 and the back sheet 3 can be extended outward in the transverse direction by a dimension in which the slit 8 of the target tape 6 is widened.

The target tape 6 is divided into two at almost the center of the front body circumference region 20. Therefore, the portion 12 of the backsheet 3 extending almost at the center of the front body circumference region 20 is not elastically elastically constrained by the target tape 6, and the front sheet 2 and the back surface are not. The sheet 3 can be stretched laterally outward at the site 12.

7 and 8 are perspective views of the diaper 1 of FIG. 7 shown in a wearing state in which the front and rear torso circumferential regions 20 and 22 are connected with each other. 8, the inner surface of the tape fastener 5 is detachably fixed to the outer surface of the target tape 6. The diaper 1 has a liquid-absorbent core 4 interposed between the liquid-permeable surface sheet 2 and the liquid-impermeable back sheet 3, and has a longitudinal direction in the front torso area 20 and a rear torso area 22 ), The crotch region 21 formed between the front and rear torso circumferential regions 20 and 22, and both side edge portions 1a extending in the longitudinal direction in parallel to each other, and both end edge portions extending in the transverse direction in parallel to each other. It is the same as FIG. 1, FIG. 5 in having (1b).

In the diaper 1, the front sheet 2 and the back sheet 3 are formed of a nonwoven fabric having elasticity in the transverse direction. The surface sheet 2 and the back sheet 3 are intermittently fixed in a state where portions of these sheets 2, 3 extending outwardly and laterally outward from the peripheral edge of the core 4 overlap each other. . The core 4 is joined to the inner surface of the surface sheet 2.

The tape fasteners 5 extending laterally outwardly and the release tapes 14 extending laterally are attached to both side edge portions 1a of the diaper 1 in the rear circumference region 22. A target tape 6 serving as a fixed area of the tape fastener 5 is attached to the outer surface of the rear sheet 3 in the front body circumferential region 20.

The adhesive 13 is apply | coated to the inner surface of the tape fastener 5. The target tape 6 is rectangular in the transverse direction formed of a plastic film. In the non-wearing of the diaper 1, the tape fastener 5 is fixed to the release tape 14 via the pressure-sensitive adhesive 13 so as to be peelable. When the diaper 1 is worn, the tape fastener 5 is fixed to the outer surface of the tape fastener 5 via the adhesive 13.

The target tape 6 has a first slit 8a extending from the top edge 6b near the bottom edge 6c, and an agent extending from the bottom edge 6c of the target tape 6 near the top edge 6b. Two slits 8b are formed. The first slit 8a and the second slit 8b are alternately arranged in the transverse direction of the target tape 6. The target tape 6 is attached through a plurality of adhesives 9 extending in the longitudinal direction between each of the first and second slits 8a and 8b adjacent to the back sheet 3 in an unextended state. have.

In the front torso region 20 of the diaper 1, as shown in FIG. 8, the slit 8 of the target tape 6 widens laterally outward, thus extending between the adhesives 9. The top sheet 2 and the back sheet 3 can be stretched outward in the transverse direction by a dimension in which the slit 8 of the target tape 6 is widened.

As the surface sheet 2, it is preferable to use the thing which hydrophilized the non-stretchable or stretchable nonwoven fabric. In addition to the non-stretchable or stretchable nonwoven fabrics, non-stretchable or stretchable porous plastic films may also be used.

As the back sheet 3, besides a stretchable plastic film or a stretchable nonwoven fabric, a laminate sheet of a stretchable plastic film and a nonwoven fabric can be used. As the back sheet 3, a sheet made of elastomer such as natural rubber or synthetic rubber having elasticity or elasticity between the non-stretchable plastic film and the non-stretchable nonwoven fabric, or a composite sheet having elastic yarn interposed therebetween can also be used. It is preferable that the nonwoven fabric used for the back sheet 3 is hydrophobic.

As a nonwoven fabric, nonwoven fabrics, such as a spun lace, a needle punch, a melt blown, a thermal bond, a spun bond, a chemical bond, can be used.

The core 4 is a mixture of flap pulp and superabsorbent polymer particles, compressed to a predetermined thickness and entirely covered with a water-permeable sheet (not shown) such as tissue paper. Adhesives such as hot melt adhesives, pressure-sensitive adhesives, or thermal welding techniques can be used for fixing the sheets 2 and 3 and for bonding the cores 4.

The diaper 1 of these illustrated examples can be elongated at a predetermined magnification in the lateral direction when worn. In the diaper 1, the front and back trunk circumference regions 20 and 22 and the crotch region 21 when the front and rear trunk circumference regions 20 and 22 and the crotch region 21 are extended in the transverse direction, are stretched. It is preferable that magnification exists in 30 to 200% of range.

Although the target tape 6 is attached to the front trunk circumference region 20 under non-extension, the target tape 6 may be attached to the front trunk circumference region 20 in a slightly extended state. Here, stretching slightly means stretching the front torso circumferential region 20 in the transverse direction at an expansion ratio in the range of less than 30% while exceeding 0%.

A loop member may be attached to the inner surface of the free end 5a of the tape fastener 5. When the loop member is used for the tape fastener 5, a hook member is used as the target tape 6.

In the diaper 1, there are no limitations on the spaced apart dimension and the number of the sewing lines 8 and the slits 8 (the first and second slits 8a and 8b) formed in the target tape 6 in the transverse direction, but the spaced apart dimensions Small and large numbers are preferred. By increasing the number of seams 8 or slits 8, the extension dimension of the target tape 6 in the transverse direction is increased, and the transverse direction of the front body circumference region 20 to which the target tape 6 is attached. The extension dimension to the outside can be enlarged.

Although the adhesive agent 9 does not need to extend between the sewing line 8 and the slit 8, it is preferable to extend apart by predetermined dimension in the horizontal direction. That is, the target tape 6 should just be attached via the adhesive agent 9 extended discontinuously in the horizontal direction.

In addition to the disposable diaper 1, the present invention can also be applied to diaper covers, training pants, and incontinence pants.

According to the disposable wearing article according to the present invention, the wearing article is elastically stretched in at least the transverse direction in the longitudinal and transverse directions, wherein the non-elastic target tape is worn on the outer surface of one side of the front and back body circumference region of the wearing article under extension. Even when the article is attached to the article, since the plurality of slits extending in the longitudinal direction are formed in the target tape, the elasticity of the portion where the target tape is attached is not completely lost.

In the case where the tearable seam ends the upper and lower edges of the target tape, the elastic elasticity of the worn article extending between each of the target tapes divided in the seam is not restrained by the target tape, and the target tape is worn. The site of the article can be stretched outward in the transverse direction.

When the slit extends longitudinally near the leading edge and near the trailing edge of the target tape, or near the leading edge from the trailing edge of the first slit and the target tape where the slit extends from the leading edge of the target tape to the trailing edge. In the case where the second article is formed of a second slit extending in the cross section, each of the slits of the target tape widens outward in the lateral direction when the worn article is extended outward in the lateral direction. Therefore, the portion of the worn article to which the target tape is attached can be extended laterally outward by the dimension in which the slit of the target tape is widened.

Claims (6)

A front circumferential region located on the abdomen side of the wearer, including a lateral edge extending in the longitudinal direction parallel to each other, a both end edges extending in the lateral direction parallel to each other, a region around the rear torso located on the back side of the wearer, And a crotch region positioned between the front and rear body circumference regions, wherein tape fasteners are attached to both edges of either one of the front and rear body circumference regions, and the tape fastener is attached to an outer surface of the other front and rear body circumference regions. A disposable wear article with a non-stretchable target tape that is detachably fixed, At least the front and rear body circumference region of the front and rear body circumference region and the crotch region have elastic elasticity in the longitudinal direction and at least the lateral direction of the lateral direction, and the target tape is spaced apart by a predetermined dimension in the lateral direction, and A disposable wear article having a plurality of slits extending in a longitudinal direction and attached to said trunk circumferential region substantially unextended in said transverse direction. The slit of claim 1, wherein the target tape has opposite side edges spaced apart from each other in the lateral direction and extends in the longitudinal direction, and upper and lower edge edges spaced apart from each other in the longitudinal direction. A wear article extending between a vicinity of a top edge and a bottom edge of a target tape. The slit according to claim 1, wherein the target tape has both side edges extending in the longitudinal direction opposite to each other in the transverse direction, and upper and lower edges extending in the transverse direction opposite to each other in the longitudinal direction. A first slit extending from the top edge of the target tape to the vicinity of the bottom edge, and a second slit extending from the bottom edge of the target tape to the vicinity of the top edge, wherein the first slit and the second slit extend in the lateral direction. Wear items that are listed alternately. The wear article according to any one of claims 1 to 3, wherein the slit is formed of a tearable seam. The wearable article according to any one of claims 1 to 4, wherein the target tape is attached to the wearing article through a plurality of longitudinally extending adhesives spaced apart by a predetermined dimension in the transverse direction. . The wear article according to any one of claims 1 to 5, wherein the wear article is composed of a liquid absorbent core interposed between a liquid permeable surface sheet, an impermeable back sheet, and the front and back sheet. .