JP7029511B1 - Disposable diapers with fastening tape and fastening tape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disposable diaper to be provided on a disposable diaper, which is less likely to cause discomfort to the wearer and can be worn around the wearer's waist with good fit when applied to the disposable diaper. We provide a diaper that can be used and a disposable diaper equipped with the diaper. SOLUTION: This is a fastening tape 1 provided on a disposable diaper, and has a tape base material 2 having a first main surface 2A and a second main surface 2B on the opposite side thereof, and a first main surface of the tape base material 2. It has a hook member 3 of a hook-and-loop fastener attached to 2A and a loop member 4 of a hook-and-loop fastener attached to the second main surface 2B of the tape base material 2, and the hook member 3 and the loop member 4 are a tape base material. A fastening tape 1 provided so as not to overlap each other in the plan view of the first and second main surfaces of the second, and a disposable diaper to which the fastening tape 1 is attached to both sides in the width direction of the diaper body. [Selection diagram] Fig. 2

Description

The present invention relates to a fastening tape and a disposable diaper provided with the fastening tape.

Conventionally, so-called tape-type disposable diapers equipped with a fastening tape are widely known, and disposable diapers having various configurations and the fastening tape are known (for example, Patent Document 1). ~ 3).

Japanese Unexamined Patent Publication No. 11-28111 Japanese Unexamined Patent Publication No. 2008-67831 Japanese Unexamined Patent Publication No. 2012-40245

Tape-type disposable diapers are usually provided with fastening tapes on both sides of the rear side in the width direction, and when worn, the fastening tape is fastened to the target tape provided on the front side of the disposable diaper. To use. At this time, it is desired that the disposable diaper be fitted around the wearer's waist with good fit by appropriately fastening the fastening tape. In addition, it is desirable that the wearer does not feel uncomfortable with the fastening tape when the disposable diaper is worn. The present invention has been made in view of the above circumstances, and an object thereof is a fastening tape provided on a disposable diaper, which makes it difficult for the wearer to feel a sense of discomfort, and when applied to a disposable diaper, the wearer's waist. It is an object of the present invention to provide a disposable diaper that can be worn around with good fit and a disposable diaper provided with the fastener tape.

The fastening tape of the present invention that has been able to solve the above problems is a fastening tape provided on a disposable diaper, and is a tape base material having a first main surface and a second main surface on the opposite side thereof. It has a hook member of a hook-and-loop fastener attached to the first main surface of the tape base material and a loop member of the hook-and-loop fastener attached to the second main surface of the tape base material, and the hook member and the loop member are tapes. It is characterized in that it is provided so as not to overlap each other in the plan view of the first and second main surfaces of the base material.

In the fastening tape of the present invention, both the hook member provided on the first main surface of the tape base material and the loop member provided on the second main surface contribute to fastening when the disposable diaper is attached. be able to. Therefore, the disposable diaper provided with such a fixing tape can be worn around the waist of the wearer with good fit. For example, when a wearer with a small waist circumference wears a disposable diaper, even if the left and right fastening tapes partially overlap, the hook member and the loop member provided on the fastening tape are engaged with each other. , The fastening tape can be properly fastened. Alternatively, when the fastening tape is formed so as to have two knobs, the fastening tape is used for so-called cross fastening, in which the two knobs are overlapped and fastened so as to cross each other. By engaging the hook member and the loop member provided in the above with each other, the cross can be stably fastened. Therefore, the disposable diaper can be worn around the wearer's waist with good fit. The fastening tape is also provided so that the hook member and the loop member do not overlap each other in the plan view of the first and second main surfaces of the tape base material, so that the thickness of the fastening tape is not formed excessively thick. .. Therefore, the fastening tape is not bulky, and when the disposable diaper is worn, the wearer is less likely to feel a sense of discomfort with the fastening tape.

The present invention also provides a disposable diaper equipped with the above-mentioned fastening tape. In the disposable diaper of the present invention, the above-mentioned fastening tape is attached to both sides in the width direction of the diaper body, and a loop member of a hook-and-loop fastener is provided on the outer surface side of the front side portion of the diaper body, and the fastening tape is provided. Is preferably attached to the diaper body so that the first main surface of the tape base material faces the skin surface side of the disposable diaper. In this case, it is preferable that the fastening tape is provided with a plurality of hook members, and the loop member is provided between the plurality of hook members in a plan view of the first and second main surfaces of the tape base material. By providing the loop member in this way, when the fastening tape is fastened to the target tape, the position of the loop member is stable and it is difficult to shift. Therefore, by engaging the hook member with this loop member, the left and right fastening tapes can be stably overlapped with each other, and the fastening tapes can be stably cross-fastened.

The disposable diaper of the present invention is provided with a hook member of a hook-and-loop fastener on the outer surface side of the front side portion of the diaper body, and the fastening tape is provided so that the second main surface of the tape base material faces the skin surface side of the disposable diaper. It may be attached to the diaper body. In this case, it is preferable that the fastening tape is provided with a plurality of loop members, and the hook member is provided between the plurality of loop members in a plan view of the first and second main surfaces of the tape base material.

In the tape base material, it is preferable that the hook member and the loop member are provided side by side in the width direction of the diaper. By providing the hook member and the loop member in this way, when the fastening tape is fastened to the target tape on the front side of the disposable diaper, the fastening tape is easily bent along the waist circumference of the wearer. Therefore, the presence of the fastening tape makes it difficult for the wearer to feel a sense of discomfort.

Prior to use of the disposable diaper, the fastening tape may be folded back between the hook member and the loop member. By folding back the fastening tape in this way, the fastening tape can be folded compactly to improve the handleability of the disposable diaper before use.

The fastening tape has a tape main body portion and a knob portion extending in the width direction of the diaper from the tape main body portion and arranged side by side in the front-rear direction of the diaper, and the hook member and the loop member have a plurality of knob portions. It is preferable that each of them is provided in. Disposable diapers equipped with such a fastening tape are suitable for so-called cross fastening, in which a plurality of knobs arranged side by side in the front-rear direction are overlapped and fastened so as to cross each other. ..

It is also preferable that the diaper body is provided with a plurality of fastening tapes arranged side by side in the front-rear direction of the diaper on one side or the other side in the width direction of the diaper. Even if the disposable diaper is provided with the fastening tape in this way, the cross fastening is preferably performed by stacking the knobs of the fastening tapes arranged side by side in the front-rear direction so as to cross each other. Can be done.

In the fastening tape of the present invention, both the hook member provided on the first main surface of the tape base material and the loop member provided on the second main surface contribute to fastening when the disposable diaper is attached. be able to. Therefore, the disposable diaper provided with such a fixing tape can be worn around the waist of the wearer with good fit. Further, since the hook member and the loop member are provided so as not to overlap each other in the plan view of the first and second main surfaces of the tape base material, the thickness of the fastening tape is not formed excessively thick. Therefore, the fastening tape is not bulky, and when the disposable diaper is worn, the wearer is less likely to feel a sense of discomfort with the fastening tape.

An example of the fastening tape of the present invention is shown, FIG. 1 (a) shows a plan view of the fastening tape as viewed from the first main surface side, and FIG. 1 (b) shows the fastening tape from the second main surface side. Represents the plan view seen. Another example of the fastening tape of the present invention is shown, FIG. 2A shows a plan view of the fastening tape as viewed from the first main surface side, and FIG. 2B shows the fastening tape as the second main surface. Represents a plan view seen from the side. FIG. 3 shows a cross-sectional view taken along the line III-III of the adhesive tape shown in FIGS. 1 and 2. An example of the disposable diaper of the present invention provided with the adhesive tape shown in FIG. 2 is shown, and a plan view of the disposable diaper as viewed from the skin surface side is shown. The VV cross-sectional view of the disposable diaper shown in FIG. 4 is shown. An example of the perspective view of the wearing state of the disposable diaper shown in FIG. 4 is shown. Another example of the disposable diaper of the present invention is shown, and a plan view of the disposable diaper as viewed from the skin surface side is shown. FIG. 7 shows a plan view of the fastening tape provided in the disposable diaper shown in FIG. 7, FIG. 8A shows a plan view of the fastening tape as viewed from the first main surface side, and FIG. 8B shows a stop. A plan view of the wearing tape as viewed from the second main surface side is shown.

The present invention relates to a fastening tape and a tape-type disposable diaper provided with the fastening tape. The fastening tape of the present invention is provided on a disposable diaper, and a hook member of a hook-and-loop fastener is attached to one main surface of a tape base material, and a loop member of a hook-and-loop fastener is attached to the main surface of the other side. The hook member and the loop member are provided so as not to overlap each other when the main surface of the tape base material is viewed in a plan view. By constructing the fastening tape in this way, in the fastening tape, both the hook member provided on the main surface of one side of the tape base material and the loop member provided on the main surface of the other side are disposable. When wearing a diaper, it can contribute to stopping. Therefore, the disposable diaper provided with such a fixing tape can be worn with good fit to wearers of various body shapes. Further, since the hook member and the loop member are provided so as not to overlap each other in the plan view of the main surface of the tape base material, the fastening tape is not bulky and the wearer wears the disposable diaper. It becomes difficult to feel a sense of discomfort. Hereinafter, the fastening tape of the present invention will be described in detail with reference to the drawings. The fastening tape of the present invention is not limited to the embodiment shown in the drawings.

1 to 3 show a configuration example of the fastening tape of the present invention. FIG. 1 shows an example of a plan view of the fastening tape, FIG. 2 shows another example of the plan view of the fastening tape, and FIG. 3 is a sectional view taken along line III-III of the fastening tape shown in FIGS. 1 and 2. Represents. In FIGS. 1 to 3, the arrow x represents the width direction, the arrow y represents the front-back direction, the front-back direction y is orthogonal to the width direction x, and the direction is perpendicular to the surface formed by the arrows x and y. Represents the thickness direction z. The width direction x and the front-back direction y correspond to the width direction and the front-back direction of the diaper when the fastening tape is attached to the disposable diaper.

The fastening tape 1 is provided on a disposable diaper, and is configured by providing a hook member 3 and a loop member 4 for a hook-and-loop fastener on a tape base material 2. The tape base material 2 has a first main surface 2A and a second main surface 2B on the opposite side thereof, a hook member 3 for a surface fastener is attached to the first main surface 2A, and a loop of the surface fastener is attached to the second main surface 2B. The member 4 is attached. In FIGS. 1 and 2, FIGS. 1 (a) and 2 (a) show a plan view of the fastening tape 1 as viewed from the first main surface 2A side of the tape base material 2, and FIG. b) and FIG. 2 (b) show a plan view of the fastening tape 1 as viewed from the second main surface 2B side of the tape base material 2. One end of the fastening tape 1 in the width direction x is fixed to the disposable diaper, that is, it is attached in a non-detachable manner, and the other end in the width direction x exists as a free end.

Hook-and-loop fasteners are known by trade names such as "Magic Tape" (registered trademark), "Velcro" (registered trademark), and "Quicklon" (registered trademark), and are also called hook-and-loop fasteners. The hook-and-loop fastener is usually used as a pair of a hook member and a loop member, and the hook member is detachably fastened to the loop member.

The hook member 3 is configured such that a plurality of engaging elements project from the base. Specifically, the hook member 3 has a substrate and a plurality of engaging elements protruding from the substrate, and the surface of the substrate opposite to the surface on which the engaging element is provided is the first main surface of the tape base material 2. It is adhered and fixed to the surface 2A. The shape of the engaging element is not particularly limited, and examples thereof include a hook shape, an anchor shape, a mushroom shape, and a pillar shape.

The loop member 4 is configured by providing a loop portion that can be engaged with the engaging element of the hook member 3 on the substrate, and the substrate has a surface of the tape base material 2 opposite to the surface on which the loop portion is provided. It is adhered and fixed to the second main surface 2B. A part of the loop portion is fixed to the substrate and the other portion is not fixed to the substrate, whereby the engaging element of the hook member 3 can be engaged with the non-fixed portion of the loop portion to the substrate. Each loop portion may form a closed ring, or a part of the ring may be formed open and provided in connection with an adjacent loop portion. Further, a knitted structure made of threads may be formed on the substrate, and a loop portion may be formed by this knitted structure.

As the tape base material 2, a non-woven fabric, a woven fabric, a knitted fabric, a resin film, a laminate thereof, or the like can be used. The tape base material 2 is preferably made of a woven fabric, a knitted cloth, or a non-woven fabric, and is made of a non-woven fabric, from the viewpoint of ensuring the rigidity of the tape base material 2 and improving the handleability of the fastening tape. It is more preferable to be there. Further, if the tape base material 2 is made of a non-woven fabric, the tape base material 2 can be easily folded back, and for example, the fastening tape can be stably folded before the use of the fastening tape.

When a non-woven fabric is used for the tape base material 2, spunbonded non-woven fabric, air-through non-woven fabric, point-bonded non-woven fabric, melt-blow non-woven fabric, air-laid non-woven fabric, SMS non-woven fabric and the like can be used. Is preferable, and it is more preferable to use a spunbonded non-woven fabric. When such a non-woven fabric is used, it becomes easy to increase the strength of the tape base material 2. The non-woven fabric used for the tape base material 2 may be embossed, whereby the rigidity of the tape base material 2 is increased and the handleability of the fastening tape is improved.

The mass per unit area of the tape base material 2 is preferably 50 g / m ² or more, more preferably 55 g / m ² or more, preferably 120 g / m ² or less, and more preferably 100 g / m ² or less. If the mass of the tape base material 2 per unit area is 50 g / m ² or more, the tape base material 2 has sufficient rigidity, and the mass of the tape base material 2 per unit area is 120 g / m ² or less. For example, the tape base material 2 does not become too thick, and the handleability is improved.

The fastening tape 1 has a tape main body portion 5 and a knob portion 6 extending from the tape main body portion 5 in the width direction x. The tape main body portion 5 is formed on the inner side of the tape base material 2 in the width direction x, and the knob portion 6 is formed on the outer side of the tape base material 2 in the width direction x. In the fastening tape 1, at least a part of the tape main body portion 5 is fixed to a disposable diaper, and the knob portion 6 is provided with a hook member 3 and a loop member 4.

Only one knob portion 6 may be provided for one tape main body portion 5, or a plurality of knob portions 6 may be provided. In the latter case, it is preferable that a plurality of knob portions 6 are arranged side by side in the front-rear direction y, and each knob portion 6 is provided with a hook member 3 and a loop member 4. In FIG. 1, one knob portion 6 is provided for one tape main body portion 5, and in FIG. 2, two knob portions 6 are provided for one tape main body portion 5. When a plurality of knob portions 6 are provided, the lengths of the plurality of knob portions 6 in the width direction x may be the same or different from each other, but are preferably the same.

In the fastening tape 1, the hook member 3 is attached to the first main surface 2A of the tape base material 2, the loop member 4 is attached to the second main surface 2B of the tape base material 2, and the hook member 3 and the loop member 4 are attached. , The first and second main surfaces of the tape base material 2 are provided so as not to overlap each other in a plan view. By configuring the fastening tape 1 in this way, the fastening tape 1 is provided with a hook member 3 provided on the first main surface 2A of the tape base material 2 and a loop member 4 provided on the second main surface 2B. Both can contribute to fastening when wearing disposable diapers. Therefore, the disposable diaper provided with such a fixing tape can be worn around the waist of the wearer with good fit. In addition, when the disposable diaper is worn, the wearer is less likely to feel uncomfortable with the fastening tape. This will be described in detail below.

The tape-type disposable diaper has a target tape provided on the outer surface side of the front side of the diaper body, and the target tape is attached with fastening tapes provided on both sides in the width direction of the diaper body to form a pants shape. It is formed on the wearer and can be worn around the wearer's waist. At this time, if the size of the disposable diaper fits the wearer's waist circumference, the fastening tape can be properly fastened to the target tape, but if the wearer's waist circumference is small, it can be fastened. It is possible that the tape cannot be properly fastened to the target tape and the left and right fastening tapes partially overlap. However, even in such a case, if the disposable diaper is provided with the above-mentioned fastening tape 1, the hook member 3 and the loop member 4 are engaged with each other and stopped by overlapping the left and right fastening tapes with each other. The wearing tape can be properly fastened, and the disposable diaper can be worn around the wearer's waist with good fit. Therefore, the disposable diaper having such a fixing tape can widen the range of conformity to the wearer's waist circumference dimension.

When the fastening tape 1 is configured to have two knob portions 6, for example, as shown in FIG. 2, the two knob portions 6 are overlapped so as to cross each other and fastened to the target tape. It is a fastening tape suitable for so-called cross fastening. At this time, if the hook member 3 is provided on the first main surface 2A of the fastening tape 1 and the loop member 4 is provided on the second main surface 2B as described above, when the knob portions 6 are overlapped with each other. , The hook member 3 provided on the fastening tape 1 and the loop member 4 can be engaged with each other and stably cross-fastened. Therefore, it is possible to wear a disposable diaper with a better fit around the wearer's waist.

The fastening tape 1 is also provided so that the hook member 3 and the loop member 4 do not overlap each other in the plan view of the first and second main surfaces of the tape base material 2, so that the thickness of the fastening tape is excessive. Not formed thick. Therefore, the fastening tape is not bulky, and when the disposable diaper is worn, the wearer is less likely to feel a sense of discomfort with the fastening tape. For example, as described above, the bulkiness of the fastening tape can be suppressed even when the left and right fastening tapes are overlapped with each other or cross-fastened.

It is preferable that the loop member of the surface fastener cannot be attached to the first main surface 2A of the tape base material 2, and the hook member of the surface fastener cannot be attached to the second main surface 2B of the tape base material 2. preferable. Further, in the fastening tape 1, the hook member 3 and the loop member 4 are allowed to overlap due to reasons such as inevitable occurrence in quality control in manufacturing. For example, the overlap between the hook member 3 and the loop member 4 is less than 1.0 mm. In the case of (preferably less than 0.5 mm), it is considered that the hook member 3 and the loop member 4 are provided so as not to overlap each other. It is preferable that the hook member 3 and the loop member 4 are provided so as not to completely overlap with each other even in consideration of an error in manufacturing accuracy control.

The fastening tape 1 may be attached so that the first main surface 2A of the tape base material 2 faces the skin surface side of the disposable diaper, and the second main surface 2B of the tape base material 2 may be attached to the skin surface side of the disposable diaper. It may be mounted so as to face. In the former case, it is preferable that a loop member of a hook-and-loop fastener is provided as a target tape on the outer surface side of the front side portion of the disposable diaper. In the latter case, it is preferable that a hook member of a hook-and-loop fastener is provided as a target tape on the outer surface side of the front side portion of the disposable diaper. It is preferable that the target tape is provided with a loop member of a hook-and-loop fastener, which makes it difficult for the target tape to engage with the clothing and entangle the clothing when the disposable diaper is worn under the clothing. ..

The number of hook members 3 attached to the first main surface 2A of the tape base material 2 may be one or two or more. The number of loop members 4 attached to the second main surface 2B of the tape base material 2 may be one or two or more. If the number of hook members 3 or loop members 4 provided is excessive, the size of each hook member 3 or loop member 4 may become small, and a sufficient engaging force may not be obtained. Therefore, the number of hook members 3 attached to the first main surface 2A of the tape base material 2 is preferably 4 or less, more preferably 3 or less, and even more preferably 2 or less. Further, the number of loop members 4 attached to the second main surface 2B of the tape base material 2 is preferably 4 or less, more preferably 3 or less, and further preferably 2 or less.

When the fastening tape 1 is attached so that the first main surface 2A of the tape base material 2 faces the skin surface side of the disposable diaper, a plurality of hook members 3 are provided on the first main surface 2A of the tape base material 2. Is preferable. As a result, when the disposable diaper is worn, the fastening tape can be stably fastened to the target tape provided on the front side of the disposable diaper. In this case, the loop member 4 provided on the second main surface 2B of the tape base material 2 may be provided between the plurality of hook members 3 in the plan view of the first and second main surfaces of the tape base material 2. preferable. By providing the loop member 4 in this way, when the fastening tape is fastened to the target tape, the position of the loop member 4 is stabilized and it is difficult to shift. Therefore, by engaging the hook member 3 with the loop member 4, the left and right fastening tapes can be stably overlapped with each other, and the fastening tapes can be stably cross-fastened.

When the fastening tape 1 is attached so that the second main surface 2B of the tape base material 2 faces the skin surface side of the disposable diaper, a plurality of loop members 4 are provided on the second main surface 2B of the tape base material 2. Is preferable. Further, the hook member 3 provided on the first main surface 2A of the tape base material 2 is preferably provided between the plurality of loop members 4 in a plan view of the first and second main surfaces of the tape base material 2. .. As a result, when wearing a disposable diaper, the fastening tape can be stably fixed to the target tape provided on the front side of the disposable diaper, and as described above, the left and right fastening tapes are connected to each other. Can be stably stacked, and the fastening tape can be stably cross-fastened.

It is preferable that the hook member 3 and the loop member 4 are provided apart from each other by 0.5 mm or more and 30 mm or less in a plan view of the first and second main surfaces of the tape base material 2. When the hook member 3 and the loop member 4 are provided at a distance of 0.5 mm or more from each other, the fastening tape is easily bent between the place where the hook member 3 is provided and the place where the loop member 4 is provided. When the fastening tape is fastened to the target tape on the front side of the disposable diaper, the fastening tape makes it difficult for the wearer to feel stiff. When the hook member 3 and the loop member 4 are provided so as to be separated from each other by 30 mm or less, when the fastening tape is fastened to the target tape on the front side of the disposable diaper, the main tape base material 2 is not opposed to the target tape. The position of the hook member 3 or the loop member 4 attached to the surface (that is, the main surface of the tape base material 2 facing the outer surface side of the disposable diaper) is stabilized. Therefore, it becomes easy to stably superimpose the left and right fastening tapes on each other and to stably cross-fasten the fastening tapes. When the hook member 3 and the loop member 4 are provided apart from each other, the fastening tape 1 is provided with a portion where the hook member 3 is provided and the loop member 4 in a plan view of the first and second main surfaces. It is preferable that the portion between the hooked portion and the portion is composed of only the tape base material 2.

It is preferable that the hook member 3 and the loop member 4 provided on the fastening tape 1 are provided side by side in the width direction x. By providing the hook member 3 and the loop member 4 in this way, when the fastening tape is fastened to the target tape on the front side of the disposable diaper, the fastening tape is easily bent along the waist circumference of the wearer. Therefore, the presence of the fastening tape makes it difficult for the wearer to feel a sense of discomfort. Further, by providing the hook member 3 and the loop member 4 in this way, it becomes easy to fold the fastening tape 1 between the hook member 3 and the loop member 4 before using the disposable diaper. For example, in the manufacturing line of the fastening tape 1, the fastening tape 1 is pushed from the first main surface 2A side or the second main surface 2B side to push the fastening tape 1 of the hook member 3 and the loop member 4. It will be easier to fold back between them. By folding back the fastening tape in this way, the fastening tape can be folded compactly to improve the handleability of the disposable diaper before use.

In the fastening tape 1, the hook member 3 or the loop member 4 attached to the main surface of the tape base material 2 facing the skin surface side of the disposable diaper is attached to the hook member 3 or the loop member on the opposite main surface. It is preferably located on the tip side (that is, the outer side in the width direction x) with respect to 4. When a plurality of hook members 3 or loop members 4 are provided on the main surface of the tape base material 2 facing the skin surface side of the disposable diaper, at least one of the plurality of hook members 3 or loop members 4 is provided on the opposite side thereof. It is preferably located on the tip side of the hook member 3 or the loop member 4 attached to the main surface of the. By providing the hook member 3 and the loop member 4 in this way, the fastening tape can be stably fastened to the target tape provided on the front side of the disposable diaper, and the left and right fastening tapes can be overlapped with each other. It is possible to perform stable alignment and cross-fastening of the fastening tape.

When the fastening tape 1 is folded back between the hook member 3 and the loop member 4, the fastening tape 1 is folded back with the hook member 3 inside (that is, the first main surface 2A of the tape base material 2 inside). Is preferable. If the tape base material 2 is composed of a non-woven fabric, a woven fabric, or a knitted fabric and the fastening tape 1 is folded in this way, the hook member 3 is temporarily fastened to the tape base material 2 with the fastening tape 1 folded back. can do. Therefore, the state in which the fastening tape is folded back can be stably held. The temporary fastening of the fastening tape means that the hook member 3 of the fastening tape is detachably fastened to other than the target tape before the fastening tape is used.

The hook member 3 and the loop member 4 are preferably provided so as to cross the tape base material 2 in the front-rear direction y at the knob portion 6. That is, it is preferable that the hook member 3 and the loop member 4 are provided so as to extend from one side edge of each knob portion 6 to the other side edge in the front-rear direction y. As a result, the hook member 3 and the loop member 4 are provided in a wider range in the front-rear direction y, so that the fastening tape can be stably fastened to the target tape on the front side of the disposable diaper, and the left and right fasteners can be stopped. It makes it easier to stably stack the adhesive tapes on top of each other and to stably cross-fasten the adhesive tapes.

In the fastening tape 1, the hook member 3 or the loop member 4 attached to the main surface of the tape base material 2 facing the target tape (that is, the main surface of the tape base material 2 facing the skin surface side of the disposable diaper) is It is preferable that the edge in the width direction x is formed so as to extend substantially parallel to the front-back direction y. If the hook member 3 or the loop member 4 is provided in this way, when the fastening tape is fastened to the target tape on the front side of the disposable diaper, the hook member 3 or the loop member 4 is peeled off in the width direction x. Even if a force is applied, the hook member 3 or the loop member 4 opposes the force in a wide range, and the fastening tape is less likely to be inadvertently peeled off from the target tape. The fastening tape 1 also has a hook member 3 or a loop member 4 provided on the main surface of the tape base material 2 which is not opposed to the target tape so that the end edge in the width direction x extends substantially parallel to the front-rear direction y. It is preferably formed in. As a result, it is easy to fold the fastening tape 1 back in the width direction x between the hook member 3 provided on the first main surface 2A and the loop member 4 provided on the second main surface 2B, and fold it compactly. become.

In the fastening tape 1, the hook member 3 or the loop member 4 attached to the main surface of the tape base material 2 facing the target tape has a main surface opposite to the main surface (that is, the tape base material 2 not opposed to the target tape 2). It is preferable that the hook member 3 or the loop member 4 attached to the main surface) is provided so as to sandwich the hook member 3 or the loop member 4 from both sides in the width direction x. Specifically, when the fastening tape 1 is attached so that the first main surface 2A of the tape base material 2 faces the skin surface side of the disposable diaper, the hook member is attached to the first main surface 2A of the tape base material 2. It is preferable that a plurality of the loop members 3 are provided side by side in the width direction x, and the loop members 4 provided on the second main surface 2B of the tape base material 2 are provided between the hook members 3 arranged side by side in the width direction x. When the fastening tape 1 is attached so that the second main surface 2B of the tape base material 2 faces the skin surface side of the disposable diaper, the loop member 4 is attached to the second main surface 2B of the tape base material 2 in the width direction x. It is preferable that a plurality of hook members 3 provided side by side on the first main surface 2A of the tape base material 2 are provided between the plurality of loop members 4 arranged side by side in the width direction x. Therefore, it is preferable that the fastening tape 1 shown in FIGS. 1 and 2 is attached to the disposable diaper so that the first main surface 2A of the tape base material 2 faces the skin surface side. As a result, the fastening tape can be stably fastened to the target tape provided on the front side of the disposable diaper, and when the fastening tape is fastened to the target tape, the tape is not opposed to the target tape. The position of the hook member 3 or the loop member 4 provided on the main surface of the base material 2 is stable, and the left and right fastening tapes can be overlapped with each other and the fastening tapes can be cross-fastened. ..

The fastening tape of the present invention can be suitably used by being attached to a disposable diaper. Therefore, the present invention also provides a disposable diaper with the fastening tape described above. Hereinafter, the disposable diaper of the present invention will be described with reference to the drawings. The disposable diaper of the present invention is not limited to the embodiment shown in the drawings.

4 and 5 show an example of the disposable diaper of the present invention. FIG. 4 shows a plan view of the disposable diaper as viewed from the skin surface side, and FIG. 5 shows a VV cross-sectional view of the disposable diaper shown in FIG. 4 and 5 show a disposable diaper with the fastening tape shown in FIG. In FIG. 4, the upper side of the drawing corresponds to the front side of the diaper, and the lower side of the drawing corresponds to the rear side of the diaper.

The disposable diaper 11 (11A) has a diaper body 12 and fastening tapes 1 attached to both sides of the diaper body 12 in the width direction x. The diaper body 12 has a front side portion, a rear side portion, and a crotch portion located between them, and the fastening tape 1 is attached to both sides of the rear side portion of the diaper body 12. In FIG. 4, the fastening tape 1 attached to the right side of the diaper main body 12 is in the unfolded state, and the fastening tape 1 attached to the left side of the diaper main body 12 is in the folded state. When wearing the disposable diaper 11, the front side of the diaper is placed on the wearer's abdomen, the crotch part is placed on the wearer's crotch, and the posterior side is placed on the wearer's back. By fastening to the target tape 20 provided on the front side portion of the twelve, it is formed into a pants shape and used.

In the disposable diaper 11, the front-back direction y corresponds to the direction extending in the front-back direction of the wearer's crotch when the disposable diaper is worn, and the width direction x is on the same surface as the disposable diaper and is the front-back direction y. It means the direction perpendicular to each other and corresponds to the left-right direction of the wearer when wearing a disposable diaper. In addition, the skin side of the disposable diaper means the side facing the wearer's skin when wearing the disposable diaper, and the outer surface side of the disposable diaper is opposite to the wearer when wearing the disposable diaper. Means the opposite side.

The diaper body 12 has a top sheet 13, a back sheet 14, and an absorber 15 arranged between them. The top sheet 13 is a sheet located on the wearer side when the disposable diaper is worn, and the back sheet 14 is a sheet located on the opposite side to the wearer, that is, on the outer surface side when the disposable diaper is worn. .. The urine or the like excreted from the wearer passes through the top sheet 13 and is stored in the absorber 15. The back sheet 14 prevents excrement from leaking to the outside.

The top sheet 13 is preferably liquid permeable, and is preferably a non-woven fabric formed of hydrophilic fibers such as cellulose, rayon, and cotton, and a polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), and polyamide (for example). For example, a non-woven fabric formed of hydrophobic fibers such as nylon), in which the surface of the hydrophobic fibers is hydrophilized by a surfactant, or the like can be used. Further, as the top sheet 13, a woven cloth, a knitted cloth, a perforated resin film or the like may be used.

The backsheet 14 is preferably liquid-impermeable, and is a non-woven fabric or resin film formed of hydrophobic fibers such as polyolefin (for example, polypropylene, polyethylene), polyester (for example, PET), and polyamide (for example, nylon). Etc. can be used. Further, as the back sheet 14, a laminated body of a non-woven fabric and a film may be used.

The absorber 15 is not particularly limited as long as it contains an absorbent material capable of absorbing excrement such as urine. As the absorber 15, for example, a molded body obtained by molding an absorbent material into a predetermined shape is used, or the molded body is covered with a covering sheet such as a paper sheet (for example, tissue paper or thin paper) or a liquid-permeable non-woven fabric. Things can be used. Examples of the absorbent material include hydrophilic fibers such as pulp fibers and water-absorbent resins such as polyacrylic acid-based, polyaspartic acid-based, cellulosic-based, and starch / acrylonitrile-based. Further, the water-absorbent material may include polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as PET, and heat-weldable fibers such as polyamide fibers. These heat-weldable fibers may be hydrophilized with a surfactant or the like in order to enhance the affinity with urine or the like.

The absorbent material preferably contains hydrophilic fibers from the viewpoint of increasing the absorption rate of urine and the like. Further, from the viewpoint of increasing the absorption capacity, the absorbent material preferably contains a water-absorbent resin. Therefore, it is preferable that the absorber contains hydrophilic fibers (particularly pulp fibers) and a water-absorbent resin. In this case, for example, it is preferable to use an aggregate of hydrophilic fibers mixed or sprayed with a water-absorbent resin.

The absorber 15 may be a sheet-shaped absorber. Examples of the sheet-like absorber include those formed so as to have a water-absorbent resin between the nonwoven fabrics and not to have pulp fibers. Since the sheet-shaped absorber thus formed has a water-absorbent resin between the nonwoven fabrics, a high absorption capacity can be realized. Further, since the sheet-shaped absorber does not have pulp fibers between the non-woven fabrics, it can be formed thin without being bulky.

The shape (planar shape) of the absorber 15 is not particularly limited. The shape of the absorber (or the molded body constituting the absorber) may be appropriately determined depending on the intended use, and examples thereof include a rectangle, an hourglass shape, a gourd shape, and a battledore shape. It should be noted that the absorber or the molded body constituting the absorber is formed in an hourglass shape from the viewpoint that the absorber is sandwiched between the thighs of the wearer and is not easily distorted even when pressed in the width direction. preferable.

It is preferable that the diaper main body 12 is joined with side sheets 16 extending outward in the width direction x from the top sheet 13 on both sides of the top sheet 13 in the width direction x. The side sheet 16 is preferably liquid impermeable and can be made of a sheet material that can be used for the back sheet 14.

In the disposable diaper 11, it is preferable that the side sheet 16 forms rising flaps 17 on both sides of the top sheet 13 in the width direction x. In this case, as shown in FIG. 5, it is preferable that the side sheet 16 is provided with an upright elastic member 18 extending in the front-rear direction y in the inner portion in the width direction x from the joint portion 19 with the top sheet 13. The inner portion of the side sheet 16 is raised by the contraction force of the standing elastic member 18, and the rising flap 17 can be formed. By providing the rising flap 17, it is possible to prevent lateral leakage of urine or the like. The inner surface of the end portion of the rising flap 17 may be joined to the top sheet 13 in the front-rear direction y, which makes it easier for the rising flap 17 to stand up toward the wearer's skin when wearing a diaper.

When a non-woven fabric is used as each of the above-described sheets, it is preferable to use a spunbonded non-woven fabric, an air-through non-woven fabric, a point-bonded non-woven fabric, a melt-blow non-woven fabric, an air-laid non-woven fabric, an SMS non-woven fabric, or the like. The mass per unit area of each sheet is preferably 10 g / m ² or more, more preferably 12 g / m ² or more, more preferably 40 g / m ² or less, and even more preferably 30 g / m ² or less.

It is preferable that the diaper body 12 is provided with leg elastic members 21 extending in the front-rear direction y on both sides in the width direction x (see FIG. 4). By providing the leg elastic member 21, gathers can be formed around the wearer's legs to improve the fit around the legs and prevent lateral leakage.

The diaper body 12 may be provided with a waist elastic member 22 extending in the width direction x at the end portion in the front-rear direction y. The contraction force of the elastic member 22 for the waist forms waist gathers along the waist circumference of the wearer, and prevents excrement such as urine from leaking from the back side or the abdomen side.

As each elastic member described above, elastic elastic materials such as polyurethane threads, polyurethane films, and natural rubber, which are usually used for disposable diapers, can be used. The elastic member is preferably fixed with an adhesive such as a hot melt adhesive in a stretched state. For example, a polyurethane yarn having a fineness of 40 to 1,240 dtex is stretched to a magnification of 1.1 to 5.0 times, arranged, and fixed. As the adhesive, it is preferable to use a rubber-based hot melt adhesive. The magnification is 1.0 times in the non-stretched state.

The target tape 20 is provided on the outer surface side of the front side portion of the diaper body 12, and is formed to be detachably attached to the fastening tape 1. As the target tape 20, a hook member or a loop member of a hook-and-loop fastener can be used, and for the description thereof, the above description of the hook member and the loop member of the fastening tape is referred to.

In the disposable diaper 11A shown in FIG. 4, the fastening tape 1 is attached to the diaper body 12 so that the first main surface 2A of the tape base material 2 faces the skin surface side of the disposable diaper 11A. Therefore, in the fastening tape 1, the hook member 3 attached to the first main surface 2A of the tape base material 2 can be attached to and detached from the target tape 20, and the loop member of the hook-and-loop fastener is provided as the target tape 20. There is.

In the fastening tape 1, the tape main body 5 is attached to the diaper main body 12. In the disposable diaper 11A, the inner portion of the tape main body 5 in the width direction x is attached to the diaper main body 12, and the tape main body 5 further extends outward in the width direction x from the inner portion. The inner portion of the tape main body 5 in the width direction x is preferably fixed between the side sheet 16 and the back sheet 14, whereby the fastening tape 1 can be stably attached to the diaper main body 12.

The fastening tape 1 is formed by extending a knob portion 6 outward in the width direction x from the tape main body portion 5, a hook member 3 is provided on the skin surface side of the knob portion 6, and a loop member 4 is provided on the outer surface side. Is provided. In the disposable diaper 11A, a plurality (specifically, two) of the knob portions 6 are arranged side by side in the front-rear direction y in one fastening tape 1, and the hook member 3 and the loop are arranged on each of the plurality of knob portions 6. The member 4 is provided.

The disposable diaper 11A is provided with the fastening tape 1 configured as described above, so that the range of compatibility with the wearer's waist circumference can be expanded. In the disposable diaper 11A, for example, a wearer with a normal body shape can fasten the fastening tape 1 to the target tape 20 provided on the front side of the disposable diaper 11A, and the wearer has a small waist circumference. On the other hand, a part of the left and right fastening tapes 1 may overlap each other. However, even in such a case, the fastening tape 1 is formed by engaging the hook member 3 on the skin surface side of the upper fastening tape 1 with the loop member 4 on the outer surface side of the overlapping lower fastening tapes 1. Can be properly fastened to the front side of the disposable diaper 11A.

The disposable diaper 11A also preferably stops the fastening tape 1 when performing so-called cross fastening, in which two knob portions 6 arranged side by side in the front-rear direction y are overlapped and fastened so as to cross each other. It will be possible to wear it (see FIG. 6). In this case, when one of the knobs 6 arranged side by side in the front-rear direction y is overlapped with the other knob 6, the loop member 4 on the outer surface side of the one knob 6 is connected to the other knob 6. By engaging the hook member 3 on the skin surface side, cross fastening can be stably performed. Therefore, the disposable diaper 11A can be worn around the wearer's waist with good fit.

In the disposable diaper 11A, even if the knob portions 6 of the fastening tape 1 are overlapped with each other as described above, the hook member 3 and the loop member 4 are mutually viewed in the plan view of the first and second main surfaces of the tape base material 2. Since the fastening tape 1 is provided so as not to overlap with each other, the fastening tape 1 is not bulky, and when the disposable diaper 11A is worn, the wearer is less likely to feel a sense of discomfort with the fastening tape 1.

In the disposable diaper 11A, the fastening tape 1 attached to the left side of FIG. 4 is folded back in the width direction x at the crease F1 formed in the knob portion 6, whereby the fastening tape 1 before use of the disposable diaper 11A is folded. 1 can be folded compactly. The crease F1 is formed between the hook member 3 and the loop member 4 arranged side by side in the width direction x, so that the fastening tape 1 can be easily folded back in the width direction x. Further, the fastening tape 1 is folded back with the first main surface 2A inside, whereby when the fastening tape 1 is folded back at the crease F1, the hook member 3 can be temporarily fastened to the tape base material 2. can. Therefore, before using the disposable diaper 11A, the state in which the fastening tape 1 is folded back can be stably held. The crease F1 is preferably formed at a position separated from the hook member 3 and the loop member 4 by 0.5 mm or more, whereby the fastening tape 1 is formed at the crease F1 without being disturbed by the hook member 3 or the loop member 4. It will be easier to turn back. On the other hand, the crease F1 is preferably formed at a position 5 mm or less away from the hook member 3 or the loop member 4, and more preferably 3 mm or less. As a result, when the fastening tape 1 is folded back at the crease F1, the fastening tape 1 can be easily folded back along the edge of the hook member 3 or the loop member 4.

In the disposable diaper 11A, the fastening tape 1 may be further folded back at a crease F2 along the side edge of the diaper body 12 in the width direction x. Thereby, before using the disposable diaper 11A, the fastening tape 1 can be folded more compactly. The crease F2 is preferably formed at a position separated from the side edge of the diaper body 12 in the width direction x by 3 mm or less, and more preferably 2 mm or less. The crease F2 is preferably formed so as not to overlap the knob portion 6 folded back at the crease F1.

Although not shown in the drawings, the fastening tape 1 may be attached to the diaper body 12 so that the second main surface 2B of the tape base material 2 faces the skin surface side of the disposable diaper 11A. In this case, when the disposable diaper 11A is worn, the loop member 4 attached to the second main surface 2B of the tape base material 2 is fastened to the target tape 20 in the fastening tape 1. Will be provided with a hook member for a hook-and-loop fastener.

7 and 8 show another example of the disposable diaper of the present invention. FIG. 7 shows a plan view of the disposable diaper as viewed from the skin surface side, and FIG. 8 shows a plan view of the fastening tape provided on the disposable diaper shown in FIG. 7. 8 (a) shows a plan view of the fastening tape as viewed from the first main surface side of the tape base material, and FIG. 8 (b) shows the fastening tape of the tape base material. A plan view seen from the second main surface side is shown. In FIGS. 7 and 8, the same components as the fastening tapes and disposable diapers shown in FIGS. 2 to 5 are shown using the same reference numerals. Further, in the description of the disposable diaper and the fastening tape of FIGS. 7 and 8 below, the description of the portion overlapping with the above will be omitted.

The disposable diaper 11 (11B) shown in FIG. 7 has a different installation mode from the disposable diaper 11A shown in FIG. 4, and the fastening tape 1 is placed on both sides of the diaper body 12 in the width direction x in the front-rear direction. A plurality (specifically, two) are provided side by side in y. The fastening tape 1 provided on the disposable diaper 11B is preferably provided with only one knob portion 6. The disposable diaper 11B is provided with the fastening tape 1 in this way, so that the two knobs 6 arranged side by side in the front-rear direction y are overlapped and fastened so as to cross each other, that is, so-called cross fastening is performed. It will be suitable for. That is, when one knob portion 6 arranged side by side in the front-rear direction y is overlapped with the other knob portion 6, the skin surface of the other knob portion 6 is attached to the loop member 4 on the outer surface side of the one knob portion 6. By engaging the hook member 3 on the side, stable cross fastening can be performed. Therefore, the disposable diaper 11B can be worn around the wearer's waist with good fit.

In the disposable diaper 11B, the entire tape body portion 5 of the fastening tape 1 is attached to the diaper body 12, and the knob portion 6 is provided so as to extend outward in the width direction x from the diaper body 12. .. In this way, the fastening tape 1 may be attached to the diaper body 12. The fastening tape 1 shown in FIGS. 7 and 8 does not exclude a mode in which only a part of the tape main body 5 is attached to the diaper main body 12.

In the disposable diaper 11B, the fastening tape 1 is attached to the diaper body 12 so that the first main surface 2A of the tape base material 2 faces the skin surface side of the disposable diaper 11B. Therefore, in the disposable diaper 11B, a loop member of the surface fastener is provided as the target tape 20. The fastening tape 1 may be attached to the diaper body 12 so that the second main surface 2B of the tape base material 2 faces the skin surface side of the disposable diaper 11B. In this case, the target tape 20 may be attached. A hook member for a hook-and-loop fastener will be provided.

In the disposable diaper 11B, the fastening tape 1 attached to the left side of FIG. 7 is folded back in the width direction x at the crease F1 formed in the knob portion 6, and the hook member provided on the folded knob portion 6 is provided. 3 is temporarily fastened to the skin surface side of the diaper body 12. In this way, before using the disposable diaper 11B, the hook member 3 of the fastening tape 1 may be temporarily fastened to the diaper main body 12, whereby the fastening tape 1 can be stably held in a folded state. can.

1: Fastening tape 2: Tape base material 3: Hook member 4: Loop member 5: Tape body part 6: Knob part 11: Disposable diaper 12: Diaper body 13: Top sheet 14: Back sheet 15: Absorber 16: Side Sheet 20: Target tape

Claims (9)

A fastening tape with a knob that is provided on disposable diapers.
A tape base material having a first main surface and a second main surface on the opposite side thereof,
The hook member of the hook-and-loop fastener attached to the first main surface of the tape base material,
It has a loop member of a hook-and-loop fastener attached to the second main surface of the tape base material.
The hook member and the loop member are arranged in the knob portion, and one of the hook member and the loop member is the other in a plan view of the first and second main surfaces of the tape base material. A fastening tape characterized by being provided so as not to overlap each other. The adhesive tape according to claim 1 is a disposable diaper attached to both sides of the diaper body in the width direction.
A loop member of a hook-and-loop fastener is provided on the outer surface side of the front side portion of the diaper body.
The adhesive tape is a disposable diaper that is attached to the diaper body so that the first main surface of the tape base material faces the skin surface side of the disposable diaper. The adhesive tape according to claim 1 is a disposable diaper attached to both sides of the diaper body in the width direction.
A hook member for a hook-and-loop fastener is provided on the outer surface side of the front side portion of the diaper body.
The adhesive tape is a disposable diaper that is attached to the diaper body so that the second main surface of the tape base material faces the skin surface side of the disposable diaper. The disposable diaper according to claim 2, wherein a plurality of the hook members are provided, and the loop member is provided between the plurality of hook members in a plan view of the first and second main surfaces of the tape base material. The disposable diaper according to claim 3, wherein a plurality of the loop members are provided, and the hook member is provided between the plurality of loop members in a plan view of the first and second main surfaces of the tape base material. The disposable diaper according to any one of claims 2 to 5, wherein the hook member and the loop member are provided side by side in the width direction of the diaper in the tape base material. The disposable diaper according to any one of claims 1 to 6, wherein the fastening tape is folded back between the hook member and the loop member before use of the disposable diaper. The fastening tape has a tape main body portion and a knob portion extending from the tape main body portion in the width direction of the diaper and arranged side by side in the front-rear direction of the diaper.
The disposable diaper according to any one of claims 1 to 7, wherein the hook member and the loop member are provided on the plurality of knobs, respectively. The disposable diaper according to any one of claims 1 to 7, wherein the diaper body is provided with a plurality of fastening tapes arranged side by side in the front-rear direction of the diaper on one side or the other side in the width direction of the diaper. ..

Images