KR101379993B1 - Disposable absorbent pants - Google Patents

Abstract

The present invention provides a disposable absorbent pants that prevent the seam from being exposed to the skin by preventing the seam from being folded to the side panel to which the seam is attached, thereby preventing skin irritation. Disposable absorbent pants according to an embodiment of the present invention is a wear sheet having a front region, an intermediate region, and a rear region along a longitudinal direction, an absorbent pad fixed to an inner surface of the wearing sheet, and facing in the width direction in the rear region. A pair of rear side panels attached to be visible, a pair of seams respectively attached to the pair of rear side panels, and a fastening portion attached to face the width direction in the front region and attached to the seam And a pair of front side panels each having a joint portion joined to the rear side panel next to the seam corresponding to the fastening portion.

Description

Disposable Absorption Pants {DISPOSABLE ABSORBENT PANTS}

The present invention relates to disposable absorbent pants, and more particularly, to a disposable absorbent pants that can prevent skin irritation by preventing the seam attached to the side panel from being exposed to the skin.

Disposable absorbent articles, such as disposable diapers, infant training panties, incontinence underwear, and the like are garments for the lower body that wrap around body parts below the waist and can absorb and contain excrement from uncontrolled urination or defecation.

As an example of such disposable absorbent articles, disposable absorbent pants, such as disposable diapers, include a wear sheet that is filled between the wearer's legs, and an inner surface of the wear sheet is provided with an absorbent pad capable of absorbing body waste. In addition, the disposable absorbent pants may be attached with a pair of front side panels and a pair of rear side panels overlapping the sides of the wearer to prevent the wear sheet from flowing down arbitrarily. In particular, a pair of rear side panels are attached with a refastenable fastening member, ie a seam, to allow the pair of front side panels to be superimposed on the pair of rear side panels.

In the disposable absorbent pants as described above, since the front side panel and the rear side panel are formed of an elastic material such as fiber, the part may be folded in the process of wearing or after using the disposable absorbent pants. That is, as shown in FIG. 1, the front side panel 30 corresponds to the outer side side A of the seam 20 in a state in which the front side panel 30 is superimposed on the rear side panel 10 and attached to the seam 20. The rear side panel 10 may be folded inward to expose the edge of the seam 20 to the skin. Therefore, there is a problem that the seam 20 having a dull surface is in contact with the skin causing skin irritation.

In order to solve the above problems, a variety of disposable absorbent pants have recently been proposed to improve fastening sites. As an example of such disposable absorbent pants, US Patent No. 6,554,816 discloses disposable absorbent pants with a modified seam shape. According to the said patent document, the seam which inclines or deforms the corner | corner and the edge | edge is employ | adopted for disposable absorbent pants. However, the disposable absorbent pants are intended to minimize the skin irritation through the deformation of the seam on the premise that the seam is exposed to the skin, and the side panel to which the seam is attached may still be folded when the disposable absorbent pants are worn or used. . Therefore, not only can the seam not be exposed to the skin, but there is a limit to effectively preventing skin irritation caused by contact of the seam.

United States Patent Application Publication No. 6,554,816, registered on 2003.04.29.

The present invention is a disposable absorbent pants employing a refastenable seam, preventing the seam from being exposed to the skin by preventing folding of the side panel to which the seam is attached, and thereby preventing the skin irritation from occurring. Provide pants.

Disposable absorbent pants according to an embodiment of the present invention is a wear sheet having a front region, a middle region, and a rear region along a longitudinal direction, an absorbent pad fixed to an inner surface of the wearing sheet, and to face in the width direction at the rear region. A pair of rear side panels to be attached, a pair of seams respectively attached to the pair of rear side panels, and a pair of second seams attached so as to face each other in the width direction in the front region, and corresponding to the seams And a pair of front side panels each having a fastening portion and a joint portion joined to the rear side panel next to the corresponding seam next to the fastening portion.

In addition, the joining portion may be formed along the length direction in the front side panel next to the outer side of the fastening portion.

In addition, the joining portion may be further formed on the front side panel next to both ends of the fastening portion in the longitudinal direction.

In addition, the joining portion may be formed in a discontinuous line form in which the front side panel next to the fastening portion and the rear side panel next to the seam are joined in any one of a dotted line shape, a broken line shape, and a combination of dotted lines and broken lines. have.

In addition, the joint formed in the front side panel next to the outer side of the fastening portion along the longitudinal direction and the joint formed on the front side panel next to both ends in the longitudinal direction of the fastening portion have a gap between the discontinuous lines. Can be formed differently.

In addition, the front side panel may be detachable from the seam through the fastening portion.

In addition, the junction may be formed of at least one of ultrasonic bonding, heating bonding and pressure bonding.

In the disposable absorbent pants of the present invention, the front side panel is superimposed on the rear side panel to which the seam is attached, and the rear side panel and the front side panel next to the seam are joined. Therefore, when the disposable absorbent pants are worn or used, the rear side panel positioned relatively inward of the front side panel may be folded to prevent the seam from being exposed to the skin, thereby preventing skin irritation from being induced.

In addition, the rear side panel and the front side panel next to the seam can be joined in a discontinuous line form so that the front side panel can be easily separated from the rear side panel. Therefore, the disposable absorbent pants can be easily peeled off with little force.

In addition, in the rear side panel and the front side panel formed of the elastic material, at least one of ultrasonic bonding, heat bonding, and pressure bonding, rather than a binder bonding method, is used to bond the rear side panel and the front side panel next to the seam. It can be used to reduce the defect rate according to the manufacture of disposable absorbent pants, to simplify the inspection process, etc., to improve productivity.

1 is a view schematically showing a state that a seam employed in a conventional disposable absorbent pants is exposed to the skin.
Figure 2 is a plan view showing the disposable absorbent pants in accordance with one embodiment of the present invention.
3 is a perspective view showing a disposable absorbent pants according to an embodiment of the present invention.
4 is a view showing a first embodiment of the junction formed in the disposable absorbent pants shown in FIG.
FIG. 5 is a view showing a second embodiment of a joint formed on the disposable absorbent pants shown in FIG. 3.
FIG. 6 is a view showing a third embodiment of the joint formed on the disposable absorbent pants shown in FIG. 3.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the disposable absorbent pants of the present invention.

2 to 6, the disposable absorbent pants 100 according to the embodiment of the present invention, as shown in Figure 2, the wearing seat 110 and the wearing sheet 110 is filled in the lower body, And an absorbent pad 120 fixed to an inner surface to absorb body excrement.

The wearing sheet 110 is a sheet having a rectangular shape, and a pair of elastic bands 112a and 112c are formed at both end edges in the longitudinal direction (x direction) to surround the waist of the wearer, and wrap around the leg of the wearer. Of elastic bands 114 are formed at both edges in the width direction (y direction). In this embodiment, the wearing sheet 110 is formed in a rectangular shape, but is not limited thereto and may be formed in various forms.

The wearing sheet 110 is divided into a rear region 110a surrounding the pelvis along a longitudinal direction (x direction), an intermediate region 110b surrounding the crotch portion, and a front region 110c surrounding the abdomen. In addition, in the rear region 110a and the front region 110c of the wearing sheet 110, a pair of back side panels 130 and a pair of front side panels 150 are provided in a width direction. It is attached to both sides so that it may face in (y direction).

When wearing the disposable absorbent pants 100 as described above, the pair of rear side panels 130 are stretched to surround the wearer's side, and the pair of front side panels 150 also corresponds to the pair of rear side panels Each is stretched so as to be superimposed on 130. On the outer side of the rear side panel 130, that is, the side on which the front side panel 150 is superposed, a seam 140, which is a refastenable fixing member, is attached to attach and detach the front side panel 150 to the rear side panel 130. You can. Accordingly, after folding the wearing sheet 110 so that the rear region 110a and the front region 110c face each other based on the middle region 110b of the wearing sheet 110, the pair of rear to which the seam 140 is attached. By superimposing and attaching a pair of front side panels 150 to the side panels 130, as shown in FIG. 3, the upper opening 102 and the pair of leg openings 104 opening to both sides are shown. It is possible to deform the disposable absorbent pants 100 in the form to form a. The disposable absorbent pants 100 according to this embodiment are not provided in an unfolded state as shown in FIG. 2, but a waist opening 102 and a pair of leg openings 104 are formed as shown in FIG. 3. It is provided in the form. That is, the pair of rear side panels 130 and the pair of front side panels 150 corresponding thereto are provided in an overlapped manner.

Unlike conventional disposable absorbent pants that are simply detachable from the pair of front side panels via seam, the disposable absorbent pants 100 according to the present invention are as shown in FIGS. 4 to 6. Likewise, the front side panel 150 has a fastening portion 220 attached to the seam 140 attached to the rear side panel 130, and the front side panel 150 next to the fastening portion 220 is seam. It has a junction portion 200 that is joined to the side rear side panel 130. That is, in a state in which the rear side panel 130 and the front side panel 150 are attached through the seam 140, the rear side panel 130 and the front side panel 150 next to the seam 140 are additionally bonded to each other. The rear side panel 130 may be prevented from being folded when the disposable absorbent pants 100 are worn or used. Therefore, the seam 140 attached to the rear side panel 130 may be prevented from being exposed to the skin, thereby preventing skin irritation from being induced.

The fastening part 220 formed on the front side panel 150 has the same shape as that of the seam 140. Therefore, when the shape of the seam 140 is deformed, the shape of the fastening part 220 is also correspondingly modified. In this embodiment, the seam 140 is formed in a rectangular shape extending in the longitudinal direction (x direction) so that the fastening portion 220 also has a rectangular shape. Seam 140 is not limited to the shape according to this embodiment, it may be formed in a variety of shapes, such as oval, circular, polygonal. In addition, when the seam 140 is formed in a polygonal shape, the corners may be rounded or the edges may be formed to be inclined along the longitudinal direction (x direction).

On the other hand, the joint portion 200 is formed by a mechanical bonding method next to the fastening portion 220 formed on the front side panel 150 in response to the seam 140. The junction 200 may be formed over the entire side of the fastening part 220. In addition, as in this embodiment, the junction 200 is formed over a part or all of the area except the inner side of the seam 140 that is not exposed to the skin even if the folding is caused, that is, the seam 140 is not exposed to the skin. Can be.

As shown in FIG. 4, the junction part 200 may be formed along the longitudinal direction (x direction) at the front side panel 150 of the outer side side B1 of the fastening part 220. In addition, as shown in FIG. 5, the front side panel 150 of the outer side side B1 of the fastening part 220 and both end sides B2 in the longitudinal direction (x direction) of the fastening part 220. In the front side panel 150 of B3, the fastening part 220 may be formed in the width direction (y direction).

The splice 200 formed next to the fastening 220 in response to the seam 140 is a disconnected discontinuous line rather than a continuous line in order to minimize the force that separates the front side panel 150 from the rear side panel 130. It is formed in the form. The discontinuous line shape may be formed in any one of a dotted line shape, a short dashes line shape, and a combination of dotted lines and broken lines. That is, the front side panel 150 of the outer side side B1 of the fastening part 220 and the front side panel (B2, B3) of both end sides B2 and B3 in the longitudinal direction (x direction) of the fastening part 220 ( The junction part 200 formed in the width direction (y direction) of the fastening part 220 at 150 is the front side panel 150 next to the fastening part 220 and the rear side panel 130 next to the seam 140. It is formed by joining in the form of discontinuous lines.

The joining portion 200 formed in the form of a discontinuity line can be easily peeled off in the future, while the portion joined at the time of wearing and using the disposable absorbent pants 100 can be easily peeled off, that is, the front side panel ( The distance between the plurality of short lines arranged to vary the number, spacing, size, etc. of the plurality of junction points 210 having a dotted line shape or to form a dashed line so that the 150 may be easily separated from the rear side panel 130. The bonding strength or the peel strength may be adjusted by varying the line thickness and the like. In general, the bond strength to which the rear side panel 130 and the front side panel 150 are attached through the seam 140, that is, the vertical tensile force per unit area required to separate the attached panel has a range of 0.2 Kgf to 0.25 Kgf. However, the strength that the rear side panel 130 and the front side panel 150 is bonded through the bonding portion 200 is preferably to have a range of 0.2Kgf or more and 2.0Kgf. When the bonding strength of the bonding portion 200 is less than 0.2Kgf, the bonded portion next to the seam 140 is easily dropped, and when the bonding strength exceeds 2.0Kgf, it is difficult to remove the bonded portion beside the seam 140. There is discomfort.

When the junction part 200 is formed in a dotted line shape in which the plurality of junction points 210 are aligned, as illustrated in FIG. 5, the plurality of junction points 210 may be formed on the outer side side B1 of the fastening part 220. The front side panel 150 and the fastening portion 220 may be formed to have the same distance (d1 = d2 = d3) at the front side panel 150 at both ends B1 and B2 in the longitudinal direction (x direction). Can be.

In addition, in the case where it is assumed to wear or use a disposable absorbent pants in which the junction part 200 is not formed, the number of junction points 210 or the junction points 210 included per unit length according to the easily exposed portion of the seam 140. The junction part 200 may be formed by varying the size and the like. For example, the rear side panel 130 overlapping the front side panel 150 at both ends B2 and B3 of the fastening portion 220 is the front side panel B1 at the outer side side B1 of the fastening portion 220. When folded more easily than the rear side panel 130 superimposed on 150, the longitudinal direction (x) at the front side panel 150 of the outer side side B1 of the fastening portion 220, as shown in FIG. 6. Direction D between the plurality of junction points 210 included in the junction portion formed along the side), and the front side panels at both ends B1 and B2 in the longitudinal direction (x direction) of the fastening portion 220. In 150, the distance between the plurality of bonding points 210 included in the bonding portion formed in the width direction (y direction) of the fastening portion 220 may be greater than the distances D2 and D3. That is, the front side panel 150 at both sides B2 and B3 of the fastening part 220 increases the joint strength by increasing the number of joint points 210 per unit length, and increases the outside of the fastening part 220. The front side panel 150 on the side side B1 can be made to adjust the bonding strength weakly so that the number of bonding points 210 per unit length is included less. Of course, if necessary, the front side panel 150 of the outer side side B1 of the fastening part 220 is longer than the front side panel 150 of both side sides B2 and B3 of the fastening part 220. Bonding strength may be adjusted differently by increasing the number of bonding points 210 included per sugar. In addition, the spacing between the junction points 210 included in each of the front side panels 150 at both ends B2 and B3 of the fastening part 220 may be adjusted to be different from each other.

As described above, a physical bonding method is used for bonding the rear side panel 130 and the front side panel 150 formed of an elastic material such as fiber. More specifically, at least one of ultrasonic bonding, heat bonding, and pressure bonding may be used. With the front side panel 150 superimposed on the rear side panel 130 so that it is attached to the seam 140, an ultrasonic wave is applied to the outer side of the front side panel 150, or heated or pressed to the side of the seam 140. Rear side panel 130 and front side panel 150 are bonded. In this embodiment, a physical bonding method in which no adhesive is used to join the rear side panel 130 and the front side panel 150 is used so that the rear side panel 130 and the front side are formed of an elastic material such as fiber. Bonding strength of the side panel 150 can be easily adjusted, and the adhesive can be prevented from leaking around the seam 140. Therefore, the occurrence of a defective rate may be reduced when manufacturing the disposable absorbent pants 100 provided in the bonded state of the seam 140, and the inspection process for inspecting the bonded state may be simplified to improve productivity.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be obvious to those with knowledge.

100: disposable absorbent pants 110: wear sheet
120: absorbent pad 130: rear side panel
140: seam 150: front side panel
200: junction 210: junction
220:

Claims (7)

A wearing seat having a front region, an intermediate region and a rear region along the longitudinal direction,
An absorption pad fixed to an inner surface of the wear sheet;
A pair of rear side panels attached to face in the width direction in the rear region;
A pair of seams respectively attached to the pair of rear side panels,
A pair of front side surfaces which are attached to face each other in the width direction in the front region, and have a fastening portion attached to the seam and a joint portion joined to the rear side panel next to the seam corresponding to the seam on the side of the fastening portion; panel
Disposable absorbent pants comprising a. The method of claim 1,
And said splicing portion is formed along said longitudinal direction at said front side panel next to the outer side of said fastening portion. 3. The method of claim 2,
And said joining portion is further formed in said front side panel next to both ends in said longitudinal direction of said fastening portion. The method of claim 3,
The joining portion is a disposable absorbent pants having a discontinuous line shape in which the front side panel next to the fastening portion and the rear side panel next to the seam are joined in any one of a dotted line shape, a broken line shape, and a combination of dotted lines and broken lines. . 5. The method of claim 4,
The joint formed in the front side panel next to the outer side of the fastening part along the longitudinal direction and the joint formed on the front side panel next to both ends in the longitudinal direction of the fastening part have different spacing between the discontinuous lines. Disposable absorbent pants formed. The method of claim 1,
The front side panel is disposable absorbent pants detachable from the seam through the fastening portion. The method of claim 1,
The joining portion is disposable absorbent pants formed by at least one of ultrasonic bonding, heating bonding and pressure bonding.

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