JP2022135194A - Fixing tape and disposable diaper having fixing tape - Google Patents

Abstract

To provide a fixing tape provided to a disposable diaper that allows the fixing tape to be fixed to a target tape of a disposable diaper in a stable manner, and allows the fixing tape to be peeled from the target tape easily when peeling the fixing tape from the target tape, and to provide a disposable diaper having the fixing tape.SOLUTION: A fixing tape 1 provided to a disposable diaper includes a tape base material 2, and a first fastener 3 and a second fastener 4 provided to the tape base material 2, the first fastener 3 and the second fastener 4 being disposed separately from each other. Outer edges of the first fastener 3 and/or the second fastener 4 on the sides opposite to each other are formed nonlinearly. There is also provided a disposable diaper to which the fixing tape 1 is attached.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD 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 fastening tapes are widely known, and fastening tapes of various configurations and disposable diapers equipped with the fastening tapes are known (for example, Patent Document 1 ~3).

JP 2008-161571 A JP 2016-104078 A JP-A-9-38138

Tape-type disposable diapers are usually provided with fastening tapes on both sides in the width direction of the rear side of the main body of the diaper. Use it by fixing it. At this time, it is desirable that the fastening tape can be stably attached to the target tape, and that the fastening tape can be easily peeled off from the target tape when the fastening tape is peeled off from the target tape. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fastening tape provided on a disposable diaper, which can stably fasten the fastening tape to a target tape of the disposable diaper, and is capable of fastening. To provide a fastening tape which can be easily peeled off from a target tape when the tape is peeled off from the target tape, and a disposable diaper provided with the fastening tape.

The fastening tape of the present invention, which has solved the above problems, is a fastening tape to be provided on a disposable diaper, the fastening tape having a first main surface and a second main surface opposite to the first main surface. a tape substrate; and first fasteners and second fasteners provided on a first major surface of the tape substrate, the first fasteners and second fasteners being attached to the first and second tape substrates. The first fastener has a non-linear outer edge on the side facing the second fastener, and/or the second fastener has a non-linear shape. It is characterized in that the outer edge on the side facing the fastener is formed in a non-linear shape.

In the fastening tape of the present invention, since the tape substrate is provided with a plurality of fasteners, that is, the first fastener and the second fastener, when the fastening tape is attached to the target tape on the front side of the disposable diaper, , the fastening tape can be stably attached to the target tape. On the other hand, when the fastening tape is peeled off from the target tape, the first fastener and/or the second fastener have non-linear outer edges on the sides facing each other. The fastening tape can be easily peeled off from the target tape by putting a finger between the tools and lifting the fastening tape.

In the fastening tape, both the first fastener and the second fastener preferably have non-linear outer edges on sides facing each other. That is, the first fastener has a non-linear outer edge on the side facing the second fastener, and the second fastener has a non-linear outer edge on the side facing the first fastener. preferable.

It is preferable that the fastening tape is provided with a hook member or a loop member of a hook-and-loop fastener as the first fastener and the second fastener. Since the hook member and the loop member of the hook-and-loop fastener have relatively high rigidity, the hook member and the loop member of the hook-and-loop fastener are used as the first fastener and the second fastener. The effect of forming the outer edge of the tool in a non-linear shape is more likely to be exhibited.

The fastening tape may be provided with a third fastener on the second main surface of the tape substrate. The third fastener is preferably provided between the first fastener and the second fastener in plan view of the first and second main surfaces of the tape substrate. A hook member of a hook-and-loop fastener is provided as a fastener, and a loop member of a hook-and-loop fastener is provided as a third fastener, or a loop member of a hook-and-loop fastener is provided as a first fastener and a second fastener, and a third fastener is provided. It is preferable that a hook member of a hook-and-loop fastener is provided as a tool. By configuring the fastening tape in this way, the fastening tape can be combined with the first fastener and the second fastener provided on the first main surface of the tape base material together with the third fastener provided on the second main surface. Fasteners can contribute to a tight fit when the disposable diaper is put on. For example, if the waist circumference of the wearer is smaller than the size of the disposable diaper, the fastening tape cannot be properly fastened to the target tape, and the left and right fastening tapes may partially overlap. Even in such a case, by overlapping the left and right fastening tapes, the first fastener and the third fastener or the second fastener and the third fastener are joined to each other, thereby properly fastening the fastening tapes. can be worn. Therefore, a disposable diaper having such a fastening tape can widen the range of fit for the wearer's waist size. Further, since the third fastener is provided between the first fastener and the second fastener, when the fastening tape is fastened to the target tape, the position of the third fastener is stabilized and is less likely to shift. .

The first fastener and/or the second fastener are preferably arranged so as not to overlap the third fastener when viewed from the top of the first and second main surfaces of the tape substrate. As a result, the fastening tape is not excessively thick and is easy to handle. In addition, by forming the outer edges of the first fastener and/or the second fastener on the sides facing each other in a non-linear shape, the fastening tape is positioned between the first fastener and the third fastener or between the second fastener and the second fastener. The fastening tape is less likely to be unintentionally folded back between the tool and the third fastener, and the handling of the fastening tape can be improved.

It is also preferable that the first fastener and/or the second fastener are arranged so as to partially overlap the third fastener in a plan view of the first and second main surfaces of the tape substrate. The fastening tape formed in this manner has fewer excessively thick portions and is easier to handle. In addition, by forming the outer edges of the mutually facing sides of the first fastener and/or the second fastener in a non-linear shape, the fastening tape is The easiness of bending in the vertical direction is ensured, and the handleability of the fastening tape can be improved. More preferably, the first fastener and/or the second fastener are arranged so that only a portion of the non-linearly formed outer edge overlaps the third fastener.

The present invention also provides a disposable diaper comprising the fastening tape described above. The disposable diaper of the present invention has the fastening tapes attached to both sides in the width direction of the main body of the diaper. In the disposable diaper of the present invention, the fastening tape can be stably fastened to the target tape on the front side of the disposable diaper. On the other hand, when the fastening tape is peeled off from the target tape, the fastening tape can be easily peeled off from the target tape by inserting a finger between the first fastener and the second fastener and lifting the fastening tape. .

The fastening tape has a tape main body and a plurality of tabs extending in the width direction of the diaper from the tape main body and arranged side by side in the front-rear direction of the diaper. It is preferable to provide each of the plurality of knobs. A disposable diaper provided with such a fastening tape is suitable for so-called cross fastening, in which a plurality of tabs arranged side by side in the front-rear direction are overlapped and fastened so as to cross each other. .

It is also preferable that a plurality of fastening tapes be provided on the main body of the diaper so as to be aligned in the front-rear direction of the diaper. Even if the disposable diaper is provided with the fastening tape in this way, cross fastening can be preferably performed by superimposing a plurality of fastening tape portions arranged side by side in the front-rear direction so as to cross each other. .

The fastening tape and disposable diaper of the present invention can stably fasten the fastening tape to the target tape when fastening the fastening tape to the target tape on the front side of the disposable diaper. On the other hand, when the fastening tape is peeled off from the target tape, the fastening tape can be easily peeled off from the target tape by inserting a finger between the first fastener and the second fastener and lifting the fastening tape. .

An example of the fastening tape of the present invention is represented, and the top view which looked at the fastening tape from the 1st main surface side is represented. FIG. 2 shows a II-II cross-sectional view of the fastening tape shown in FIG. 1; Another example of the fastening tape of the present invention is shown, FIG. 3(a) is a plan view of the fastening tape viewed from the first main surface side, and FIG. Fig. 3 represents a plan view seen from the side; FIG. 4 is a cross-sectional view of the fastening tape shown in FIG. 3 taken along line IV-IV. Another example of the fastening tape of the present invention is shown, FIG. 5(a) is a plan view of the fastening tape viewed from the first main surface side, and FIG. Fig. 3 represents a plan view seen from the side; 6 shows a VI-VI cross-sectional view of the fastening tape shown in FIG. 5. FIG. An example of the disposable diaper of this invention provided with the fastening tape shown in FIG. 1 is represented, and the top view which looked at the disposable diaper from the skin surface side is represented. 8 shows a cross-sectional view of the disposable diaper shown in FIG. 7 taken along line VIII-VIII. Another example of the disposable diaper of this invention is represented, and the top view which looked at the disposable diaper from the skin surface side is represented. An example of the method for manufacturing the fastening tape of the present invention is shown. Another example of the method for manufacturing the fastening tape of the present invention is shown.

The fastening tape of the present invention will be described with reference to the drawings. The fastening tape of the present invention is not limited to the embodiments shown in the drawings.

1 and 2 show configuration examples of the fastening tape of the present invention. FIG. 1 shows an example of a plan view of the fastening tape, and FIG. 2 shows a II-II cross-sectional view of the fastening tape shown in FIG. 1 and 2, the arrow x indicates the width direction, and the arrow y indicates the front-rear direction. The front-rear direction y is perpendicular to the width direction x and perpendicular to the plane formed by the arrows x and y. represents the thickness direction z. Note that the width direction x and the front-back direction y correspond to the width direction and the front-back direction of the disposable 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 tape substrate 2 with a first fastener 3 and a second fastener 4 . The tape substrate 2 has a first main surface 2A and a second main surface 2B opposite thereto, and a first fastener 3 and a second fastener 4 are provided on the first main surface 2A. 2 A of 1st main surfaces of the tape base material 2 become a surface which faces a skin surface side, when the fastening tape 1 is attached to a disposable diaper. One end of the fastening tape 1 in the width direction x is fixed to the disposable diaper, that is, it is non-detachably attached, and the other end in the width direction x exists as a free end.

As the tape substrate 2, a nonwoven fabric, a woven fabric, a knitted fabric, a resin film, or a laminate of these can be used. In order to secure the rigidity of the tape base material 2 and improve the handleability of the fastening tape, the tape base material 2 is preferably made of a woven fabric, a knitted fabric, or a nonwoven fabric, and is preferably made of a nonwoven fabric. It is more preferable to be

When a nonwoven fabric is used for the tape base material 2, a spunbond nonwoven fabric, an air-through nonwoven fabric, a point-bond nonwoven fabric, a melt-blown nonwoven fabric, an air-laid nonwoven fabric, an SMS nonwoven fabric, or the like can be used. is preferably used, and spunbond nonwoven fabric is more preferably used. Using such a nonwoven fabric makes it easier to increase the strength of the tape base material 2 . The nonwoven fabric used for the tape base material 2 may be embossed, which increases the rigidity of the tape base material 2 and improves the handleability of the fastening tape 1 .

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

As the first fastener 3 and the second fastener 4, a surface fastener (hook/loop fastener) or an adhesive tape can be used, and it is preferable to use a hook member or a loop member of the surface fastener. Since the hook member and the loop member of the hook-and-loop fastener have a certain degree of rigidity, if the first fastener 3 and the second fastener 4 are composed of the hook member or the loop member of the hook-and-loop fastener, the first fastener can be used as described later. The effect of forming the outer edges of the tool 3 and the second fastener 4 into a predetermined shape is more likely to be exhibited.

The hook member has a plurality of engaging elements protruding from the base. Specifically, the hook member has a base and a plurality of engaging elements protruding from the base, and the base is adhered and fixed to the tape substrate 2 on the side opposite to the side on which the engaging elements are provided. be. The shape of the engaging element is not particularly limited, and may be hook-shaped, anchor-shaped, mushroom-shaped, column-shaped, or the like.

The loop member is configured by providing a loop portion engageable with the engaging element of the hook member on a base, and the base has a surface opposite to the surface on which the loop portion is provided and is adhered to the tape substrate 2. Fixed. A portion of the loop portion is fixed to the base and another portion is not fixed to the base, and the engaging element of the hook member can be engaged with the non-fixed portion of the loop portion. Each loop portion may form a closed ring, or a ring may be partially open and connected to adjacent loop portions. Alternatively, a knitted structure of threads may be formed on the base, and the loop portion may be formed by this knitted structure.

The fastening tape 1 has a tape body portion 6 and a tab portion 7 extending from the tape body portion 6 in the width direction x. The tape body portion 6 is formed on the inner side of the tape substrate 2 in the width direction x, and the knob portion 7 is formed on the outer side of the tape substrate 2 in the width direction x. At least part of the tape main body portion 6 of the fastening tape 1 is fixed to the disposable diaper, and the first fastener 3 and the second fastener 4 are provided on the knob portion 7 .

Only one knob portion 7 may be provided for one tape body portion 6, or a plurality thereof may be provided. In the latter case, it is preferable that a plurality of knob portions 7 are arranged side by side in the front-rear direction y, and each knob portion 7 is provided with the first fastener 3 and the second fastener 4 . In FIG. 1, two grip portions 7 are provided for one tape body portion 6 . When a plurality of knob portions 7 are provided, the lengths in the width direction x of the plurality of knob portions 7 may be the same or different, but are preferably the same.

The first fastener 3 and the second fastener 4 are arranged apart from each other in a plan view of the first and second main surfaces of the tape substrate 2, and the first fastener 3 faces the second fastener 4. The outer edge of the side is formed in a non-linear shape, and/or the outer edge of the second fastener 4 is formed in a non-linear shape on the side facing the first fastener 3 . In FIG. 1, both the first fastener 3 and the second fastener 4 have non-linear outer edges on opposite sides. If the first fastener 3 and the second fastener 4 are formed in this way, the fastening tape 1 can be stably fastened, and when the fastening tape 1 is peeled off, the first fastening By inserting a finger between the tool 3 and the second fastener 4, the fastening tape 1 can be easily peeled off.

To explain this in detail, the tape type disposable diaper has a target tape provided on the outer surface side of the front side portion of the main body of the diaper. By putting it on, it can be formed into a pants shape and worn around the wearer's waist. At this time, in the case of the disposable diaper provided with the fastening tape 1, the fastening tape 1 is provided with a plurality of fasteners, that is, the first fastener 3 and the second fastener 4, which are separated from each other, so that the diaper is stably attached. can be fixed to the target tape. On the other hand, when the fastening tape 1 is peeled off from the target tape, the first fastener 3 and/or the second fastener 4 have non-linear outer edges on the side facing each other. and the second fastener 4 to lift the fastening tape 1, the fastening tape 1 can be easily peeled off from the target tape. For example, when the outer edges of the sides of the first fastener 3 and the second fastener 4 that face each other are formed in a straight line, the first fastener 3 and the second fastener 4 are pulled from the sides that face each other. Even if a peeling force acts, the entire outer edges of the mutually facing sides of the first fastener 3 and the second fastener 4 vertically oppose the force and become difficult to peel off. However, if the outer edges of the mutually facing sides of the first fastener 3 and/or the second fastener 4 are formed in a non-linear shape, the first fastener 3 and/or the second fastener 4 may The first fastener 3 and/or the second fastener 4 are easily peeled off when a peeling force is applied from the opposing side. Preferably, both the first fastener 3 and the second fastener 4 are formed with non-linear outer edges on the sides facing each other.

The outer edges of the first fastener 3 and/or the second fastener 4 that are formed in a non-linear shape may be formed in a curved shape, a broken line shape, or a shape that combines these. In particular, the outer edges of the first fastener 3 and/or the second fastener 4 facing each other are preferably formed in a wavy shape (for example, a sine wave shape, a rectangular wave shape, a triangular wave shape, etc.) or a curved shape. , is more preferably formed in a curvilinear wavy shape. Thereby, the handleability of the fastening tape 1 can be improved.

On the other hand, it is preferable that the first fastener 3 and the second fastener 4 have straight outer edges on the side opposite to the side facing each other. That is, the outer edge of the first fastener 3 on the side opposite to the side facing the second fastener 4 is formed linearly, and the outer edge of the second fastener 4 on the side opposite to the side facing the first fastener 3 is formed in a linear shape. It is preferably formed linearly. If the first fastener 3 and the second fastener 4 are formed in this way, when the fastening tape 1 is fastened to the target tape on the front side of the diaper body, the fastening tape 1 can be stably fastened. can wear. For example, even if a force is applied to the fastening tape 1 to separate it from the distal end side or the proximal end side, the entire linear outer edge of the first fastener 3 or the second fastener 4 is resistant to the force. The fixing tape 1 is prevented from accidentally peeling off from the target tape against the vertical.

The first fastener 3 and the second fastener 4 are preferably arranged side by side in the width direction x in a plan view of the first and second main surfaces of the tape base material 2, that is, are separated from each other in the width direction x. It is preferably arranged as As a result, when the fastening tape 1 is attached to the target tape on the front side of the disposable diaper, the fastening tape 1 can be stably and easily attached along the curved shape around the waist of the wearer. In FIG. 1, the first fastener 3 is provided on the distal end side of the knob portion 7, the second fastener 4 is provided on the proximal end side of the knob portion 7, and the first fastener 3 and the second fastener 4 are connected to each other. They are spaced apart in the width direction x. The outer edge of the base end side of the first fastener 3 and the outer edge of the distal side of the second fastener 4 are formed in a non-linear shape, and the outer edge of the distal side of the first fastener 3 and the base of the second fastener 4 are formed in a non-linear shape. The outer edge on the end side is formed linearly (linearly extending substantially parallel to the front-rear direction y).

It is preferable that the first fastener 3 and the second fastener 4 are provided so as to cross the tape substrate 2 in the front-rear direction y at the knob portion 7 . That is, it is preferable that the first fastener 3 and the second fastener 4 are provided so as to extend from one side edge of each knob portion 7 to the other side edge in the front-rear direction y. As a result, the first fastener 3 and the second fastener 4 are provided over a wider range in the front-rear direction y, and the fastening tape 1 can be stably and easily fastened to the target tape on the front side of the disposable diaper. . More preferably, the edges of the first fastener 3 and the second fastener 4 in the front-rear direction y coincide with the edges of the tape substrate 2 in the front-rear direction y over the entire width direction x of the edges. is provided as follows. As a result, when the fastening tape 1 is fastened to the target tape on the front side of the diaper body, even if a shearing force is applied to the fastening tape 1 from clothing or the like, the first fastener 3 and the second fastener 4 are secured. becomes difficult to peel off from the target tape, and the fixing tape 1 can be stably fixed to the target tape.

The separation length (shortest separation length) between the first fastener 3 and the second fastener 4 is preferably 10 mm or more, more preferably 15 mm or more, preferably 80 mm or less, and more preferably 60 mm or less. By providing the first fastener 3 and the second fastener 4 in this way, the fastening tape 1 can be stably fastened to the target tape, and when the fastening tape 1 is peeled off from the target tape, A finger can be easily inserted between the first fastener 3 and the second fastener 4, and the fixing tape 1 can be easily peeled off from the target tape.

Both the first fastener 3 and the second fastener 4 preferably have non-linear outer edges on the sides facing each other, and the second fastener 4 of the first fastener 3 faces the It is preferable that the outer edge of the side and the outer edge of the side of the second fastener 4 facing the first fastener 3 have shapes complementary to each other. That is, when the outer edge of the first fastener 3 on the side facing the second fastener 4 and the outer edge of the second fastener 4 on the side facing the first fastener 3 are butted against each other, the two outer edges are fitted together. It is preferable that each outer edge is formed in the same manner. In this case, by dividing one fastener along a non-linear cutting line, one of the divisions can be formed as the first fastener 3 and the other can be formed as the second fastener 4 . Therefore, it is possible to easily manufacture the first fastener 3 and the second fastener 4 having non-linear outer edges facing each other.

The fastening tape 1 is attached so that the first main surface 2A of the tape substrate 2 faces the skin side of the disposable diaper. As described above, it is preferable to use the hook member or the loop member of the surface fastener as the first fastener 3 and the second fastener 4, but the first fastener 3 and the second fastener 4 are hook members. In this case, it is preferable that a hook-and-loop fastener loop member is provided as a target tape on the outer surface side of the front side portion of the disposable diaper. 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. The target tape is preferably provided with a hook-and-loop fastener loop member, so that when the disposable diaper is worn under the clothing, the target tape is less likely to engage with the clothing and entangle the clothing. .

The fastening tape 1 may be provided with a third fastener on the second main surface of the tape base material 2 . Disposable diapers provided with such fastening tapes can be worn by wearers of various body types with good fit. When the fastening tape 1 is provided with a third fastener, the third fastener is preferably provided on the knob portion 7 .

3 to 6 show configuration examples of fastening tapes provided with a third fastener. 3 shows an example of a plan view of the fastening tape, FIG. 4 shows a IV-IV cross-sectional view of the fastening tape shown in FIG. 3, and FIG. 5 shows still another example of a plan view of the fastening tape. 6 shows a VI-VI sectional view of the fastening tape shown in FIG. 3 and 5, FIGS. 3(a) and 5(a) show plan views of the fastening tape 1 as seen from the first main surface 2A side of the tape base material 2, and FIG. 3(b) and FIG. 5(b) show plan views of the fastening tape 1 viewed from the second main surface 2B side of the tape base material 2. As shown in FIG.

The fastening tape 1 shown in FIGS. 3 to 6 is provided with the first fastener 3 and the second fastener 4 on the first main surface 2A of the tape base material 2, and the second main surface 2B of the tape base material 2. is provided with a third fastener 5. By configuring the fastening tape 1 in this way, the fastening tape 1 is provided on the first main surface 2A of the tape base material 2 with the first fastener 3 and the second fastener 4 provided on the second main surface 2A. The third fastener 5 provided at 2B can contribute to fastening when wearing the disposable diaper. For example, if the waist circumference of the wearer is smaller than the size of the disposable diaper, the fastening tape cannot be properly fastened to the target tape, and the left and right fastening tapes may partially overlap. Even in such a case, if the disposable diaper is equipped with the fastening tapes 1 shown in FIGS. Alternatively, the fastening tape 1 can be properly fastened by joining the second fastener 4 and the third fastener 5 to each other. Therefore, the disposable diaper having such a fastening tape 1 can expand the fitting range for the waist circumference of the wearer, and the disposable diaper can be worn around the waist of the wearer with good fit.

In the case where the fastening tape 1 is configured to have two grip portions 7 as shown in FIGS. It becomes a fastening tape suitable for fastening, that is, so-called cross fastening. At this time, if the first fastener 3 and the second fastener 4 are provided on the first main surface 2A of the fastening tape 1 and the third fastener 5 is provided on the second main surface 2B as described above, The first fastener 3 and the third fastener 5 or the second fastener 4 and the third fastener 5 provided on the fastening tape 1 are joined to each other when the knob portions 7 are superimposed on each other, thereby stabilizing them. can be cross-clasped. Therefore, it is possible to wear the disposable diaper around the waist of the wearer with better fit.

A hook-and-loop fastener or an adhesive tape can be used as the third fastener 5, and it is preferable to use a hook member or a loop member of the hook-and-loop fastener. For example, when a hook member of a hook-and-loop fastener is used for the first fastener 3 and the second fastener 4, it is preferable to use a loop member of a hook-and-loop fastener for the third fastener 5. When a loop member of a hook-and-loop fastener is used for the component 4, it is preferable to use a hook member of a hook-and-loop fastener for the third fastener 5. Thereby, the first fastener 3 and/or the second fastener 4 can be engaged with the third fastener 5 .

The third fastener 5 is preferably provided between the first fastener 3 and the second fastener 4 in plan view of the first and second main surfaces of the tape base material 2 . By providing the third fastener 5 in this way, when the fastening tape 1 is fastened to the target tape, the position of the third fastener 5 is stabilized and is less likely to shift. Therefore, by engaging the first fastener 3 or the second fastener 4 with the third fastener 5 arranged in this manner, the left and right fastening tapes 1 can be stably overlapped with each other, and the fastening tapes can be 1 can be stably cross-fastened. The third fastener 5 is also preferably arranged side by side with the first fastener 3 and the second fastener 4 in the width direction x in a plan view of the first and second main surfaces of the tape base material 2 .

It is preferable that the first fastener 3 and the second fastener 4 are displaced from the third fastener 5 in plan view of the first and second main surfaces of the tape substrate 2 . As a mode in which the first fastener 3 and the second fastener 4 are arranged to be displaced from the third fastener 5, in FIGS. 5 and 6, the first fastener 3 and the second fastener 4 are arranged so as not to overlap the third fastener 5 in plan view of the first and second main surfaces of the tape base material 2 is arranged so as to partially overlap with the third fastener 5 in a plan view of the first and second main surfaces of the . 3 and 4, only one of the first fastener 3 and the second fastener 4 may be arranged so as not to overlap the third fastener 5. In FIGS. Only one of the fastener 3 and the second fastener 4 may be arranged so as to partially overlap the third fastener 5 . That is, one of the first fastener 3 and the second fastener 4 may be arranged so as not to overlap the third fastener 5, and the other may be arranged so as to partially overlap the third fastener. In this way, if the first fastener 3 and the second fastener 4 are displaced from the third fastener 5, the fastening tape 1 will have less excessively thick portions and will be easier to handle. becomes. Moreover, when wearing the disposable diaper, the wearer is less likely to feel uncomfortable with the fastening tape 1 . For example, as described above, even when the left and right fastening tapes 1 are overlapped or cross-fastened, bulkiness of the fastening tapes 1 can be suppressed.

3 and 4, the first fastener 3 and the second fastener 4 are arranged so as not to overlap the third fastener 5 in plan view of the first and second main surfaces of the tape substrate 2, The outer edges of the sides of the first fastener 3 and the second fastener 4 facing each other are formed in a non-linear shape. If the fastening tape 1 is formed in this way, the fastening tape 1 is not inadvertently placed between the first fastener 3 and the third fastener 5 or between the second fastener 4 and the third fastener 5. less likely to be returned to For example, when hook members are provided as the first fastener 3 and the second fastener 4, the fastening tape 1 is attached to the first fastener 3 and the third fastener 3 with the first fastener 3 or the second fastener 4 inside. When folded back between the fasteners 5 or between the second fastener 4 and the third fastener 5, the first fastener 3 or the second fastener 4, which is a hook member, is unintentionally attached to the tape base material 2. However, since the fastening tape 1 shown in FIGS. It is difficult to fold back between the first fastener 3 and the third fastener 5 or between the second fastener 4 and the third fastener 5, and the first fastener 3 or the second fastener 4 is unintentionally Securing to the tape base material 2 is less likely to occur. Therefore, handleability of the fastening tape 1 can be improved. Similarly, when a hook member is provided as the third fastener 5, it becomes difficult for the third fastener 5 to be unintentionally attached to the tape substrate 2, and the handleability of the fastening tape 1 can be improved. can. It should be noted that the first fastener 3 and the second fastener 4 may be formed such that only the outer edge of one of them facing each other is formed in a non-linear shape.

5 and 6, the first fastener 3 and the second fastener 4 are arranged so as to partially overlap the third fastener 5 in plan view of the first and second main surfaces of the tape substrate 2. However, in this case, the fastening tape 1 has increased rigidity at the overlapped portion between the first fastener 3 and the third fastener 5 or at the overlapped portion between the second fastener 4 and the third fastener 5. There is a risk that the fastening tape 1 will be difficult to bend so that a bending line extending in a direction from the first fastener 3 toward the second fastener 4 (a bending line extending substantially parallel to the width direction x in FIG. 5) is formed. . That is, the fastening tape 1 is fastened in a direction perpendicular to the direction from the first fastener 3 to the second fastener 4 (front-rear direction y in FIG. 5) in a plan view of the first and second main surfaces. The tape 1 may become difficult to bend. However, the fastening tape 1 shown in FIGS. 5 and 6 has an outer edge of the first fastener 3 overlapping the third fastener 5 and/or Since the outer edge is formed in a non-linear shape, the ease of bending in the direction perpendicular to the direction from the first fastener 3 to the second fastener 4 is ensured, and the handling of the fastening tape 1 is enhanced. . As a result, the wearer can easily bend forward without being disturbed by the fastening tape 1 when wearing the disposable diaper. It should be noted that the first fastener 3 and the second fastener 4 may be formed such that only the outer edge of one of them facing each other is formed in a non-linear shape.

The outer edge of the third fastener 5 on the side facing or overlapping the first fastener 3 and/or the second fastener 4 may be formed linearly or may be formed non-linearly. . When the outer edge of the third fastener 5 is formed in a non-linear shape, it can be formed in a curved shape, a broken line shape, or a combination thereof. 3 to 6, the outer edge of the third fastener 5 on the side facing or overlapping the first fastener 3 is formed in a straight line (a straight line extending substantially parallel to the front-rear direction y), and the third fastener 5 The outer edge of the side facing or overlapping with the second fastener 4 is formed in a straight line (a straight line extending substantially parallel to the front-rear direction y).

As shown in FIGS. 3 and 4, the first fastener 3 and/or the second fastener 4 overlap the third fastener 5 in plan view of the first and second main surfaces of the tape substrate 2. If the first fastener 3 and the third fastener 5 are separated from each other, the separation length between the second fastener 4 and the third fastener 5 (from the first fastener 3 to The shortest separation length in the direction toward the second fastener 4) is preferably 20 mm or less, more preferably 15 mm or less, and even more preferably 10 mm or less. As a result, the fastening tape 1 is less likely to be accidentally folded back between the first fastener 3 and the third fastener 5 or between the second fastener 4 and the third fastener 5 . Also, when the fastening tape 1 is fastened to the target tape on the front side of the disposable diaper, the position of the second fastener 5 attached to the second main surface 2B of the tape base material 2 that is not opposed to the target tape is stabilize. Therefore, the left and right fastening tapes 1 can be stably overlapped with each other, and the fastening tapes 1 can be stably cross-fastened.

As shown in FIGS. 5 and 6, the first fastener 3 and/or the second fastener 4 are aligned with the third fastener 5 in plan view of the first and second main surfaces of the tape substrate 2. In the case of overlapping arrangement, the length of the overlapping portion of the first fastener 3 and the third fastener 5 and/or the length of the overlapping portion of the second fastener 4 and the third fastener 5 (the length of the overlapping portion of the second fastener 4 and the third fastener 5) The longest overlapping length in the direction from the first fastener 3 to the second fastener 4) is preferably 20 mm or less, more preferably 15 mm or less, and even more preferably 10 mm or less. This makes it easier to ensure that the fastening tape 1 can be easily bent in a direction perpendicular to the direction from the first fastener 3 to the second fastener 4 . In addition, the portion of the fastening tape 1 that is excessively thick is reduced, and the wearer is less likely to feel uncomfortable with the fastening tape 1 when wearing the disposable diaper.

As shown in FIG. 5, the first fastener 3 and the second fastener 4 preferably overlap the third fastener 5 only at a portion of the non-linearly formed outer edge. That is, the non-linear outer edges of the first fastener 3 and the second fastener 4 intersect the outer edges of the third fastener 5 in plan view of the first and second main surfaces of the tape base material 2 . It is preferably provided to do so. This makes it easier to ensure that the fastening tape 1 can be easily bent in a direction perpendicular to the direction from the first fastener 3 to the second fastener 4 . It should be noted that only one of the first fastener 3 and the second fastener 4 may be formed so that only a portion of the non-linearly formed outer edge overlaps with the third fastener 5 .

It is preferable that the third fastener 5 is provided so as to traverse the tape base material 2 in the front-rear direction y at the knob portion 7 . That is, the third fastener 5 is preferably provided so as to extend from one side edge of each knob portion 7 to the other side edge in the front-rear direction y. As a result, the right and left fastening tapes 1 can be stably superimposed on each other, and the fastening tapes 1 can be stably cross-fastened.

The fastening tape of the present invention can be suitably used by being attached to a disposable diaper. Accordingly, the present invention also provides a disposable diaper provided with the fastening tapes 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 embodiments shown in the drawings.

7 and 8 show an example of the disposable diaper of the present invention. 7 shows a plan view of the disposable diaper as seen from the skin side, and FIG. 8 shows a cross-sectional view of the disposable diaper taken along line VIII-VIII of FIG. 7 and 8 show a disposable diaper provided with the fastening tape shown in FIG. In FIG. 7, 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 main body 12 has a front side portion, a rear side portion, and a crotch portion positioned therebetween, and the fastening tapes 1 are attached to both sides of the rear side portion of the diaper main body 12 . In FIG. 7, the fastening tape 1 attached to the right side of the diaper body 12 is unfolded, and the fastening tape 1 attached to the left side of the diaper body 12 is folded. When the disposable diaper 11 is worn, the front part is applied to the wearer's abdomen, the crotch part is applied to the wearer's crotch part, and the rear part is applied to the wearer's back, and the fastening tape 1 is unfolded. By fixing to the target tape 20 provided on the front side of 12, it is formed into a pants shape for use.

In the disposable diaper 11, the front-rear direction y corresponds to the direction extending in the front-rear direction between the wearer's crotch when the disposable diaper is worn, and the width direction x is on the same plane as the disposable diaper and corresponds to the front-rear direction y. It means an orthogonal direction, and corresponds to the lateral direction of the wearer when wearing the disposable diaper. In addition, the skin side of the disposable diaper means the side facing the skin of the wearer when wearing the disposable diaper, and the outer side of the disposable diaper means the side opposite to the wearer when wearing the disposable diaper. It means facing side.

The diaper main body 12 has a top sheet 13, a back sheet 14, and an absorbent body 15 arranged therebetween. The top sheet 13 is a sheet positioned on the side of the wearer when the disposable diaper is worn, and the back sheet 14 is a sheet positioned on the side opposite to the wearer when the disposable diaper is worn, that is, on the outer surface side. . Urine or the like excreted by the wearer passes through the top sheet 13 and is stored in the absorbent body 15 . The back sheet 14 prevents excrement from leaking to the outside.

The top sheet 13 is preferably liquid-permeable. Examples of the top sheet 13 include nonwoven fabrics made of hydrophilic fibers such as cellulose, rayon, and cotton, polyolefins (eg, polypropylene, polyethylene), polyesters (eg, PET), polyamides (eg, For example, it is possible to use a nonwoven fabric formed from hydrophobic fibers such as nylon, the surface of which is hydrophilized with a surfactant. As the top sheet 13, a woven fabric, a knitted fabric, a perforated resin film, or the like may be used.

The back sheet 14 is preferably liquid-impermeable, and may be a nonwoven fabric made of hydrophobic fibers such as polyolefin (e.g., polypropylene, polyethylene), polyester (e.g., PET), polyamide (e.g., nylon), or a resin film. etc. can be used. Moreover, as the back sheet 14, a laminate of a nonwoven fabric and a film may be used.

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 nonwoven fabric. can use things. Examples of absorbent materials include hydrophilic fibers such as pulp fibers, and water absorbent resins such as polyacrylic acid-based, polyaspartic acid-based, cellulose-based, and starch-acrylonitrile-based materials. The absorbent material may also include polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as PET, and heat-fusible fibers such as polyamide fibers. These heat-fusible fibers may be hydrophilized with a surfactant or the like in order to increase affinity with urine or the like.

The absorbent material preferably contains hydrophilic fibers in order to increase the rate of absorption of urine and the like. Moreover, from the viewpoint of increasing the absorption capacity, the absorbent material preferably contains a water absorbent resin. Therefore, the absorbent preferably contains hydrophilic fibers (especially pulp fibers) and a water absorbent resin. In this case, it is preferable to use, for example, an aggregate of hydrophilic fibers mixed with or sprinkled with a water absorbent resin.

The absorbent body 15 may be a sheet absorbent body. Examples of sheet-like absorbent bodies include those formed so as to contain a water-absorbing resin between non-woven fabrics and not contain pulp fibers. The sheet-like absorbent body thus formed has a water-absorbing resin between the nonwoven fabrics, so that a high absorption capacity can be achieved. Moreover, since the sheet-like absorbent body does not have pulp fibers between the nonwoven 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 according to the application, and examples thereof include rectangular, hourglass, gourd, battledore, and the like. In order to prevent distortion even when the absorbent body is sandwiched between the wearer's thighs and pressed in the width direction, the absorbent body or the molded body constituting the absorbent body is preferably formed in an hourglass shape. preferable.

It is preferable that side sheets 16 extending outward in the width direction x from the top sheet 13 are joined to the diaper main body 12 on both sides of the top sheet 13 in the width direction x. The sidesheets 16 are preferably impermeable to liquids and can be constructed from any sheet material that can be used for the backsheet 14 .

The disposable diaper 11 preferably has rise flaps 17 formed on both sides of the top sheet 13 in the width direction x by the side sheets 16 . In this case, as shown in FIG. 8, the side sheet 16 is preferably provided with an upright elastic member 18 extending in the front-rear direction y at a portion inward of the joint 19 with the top sheet 13 in the width direction x. , the inner portion of the side sheet 16 is raised by the contractile force of the elastic member 18 for standing up, and the rising flap 17 can be formed. By providing the rising flap 17, lateral leakage of urine or the like can be prevented. The inner surfaces of the ends of the rising flaps 17 in the front-rear direction y may be joined onto the top sheet 13, thereby making it easier for the rising flaps 17 to rise toward the wearer's skin when wearing the diaper.

When a nonwoven fabric is used for each sheet described above, it is preferable to use a spunbonded nonwoven fabric, an air-through nonwoven fabric, a point-bonded nonwoven fabric, a melt-blown nonwoven fabric, an air-laid nonwoven fabric, an SMS nonwoven 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, and preferably 40 g/m ² or less, more preferably 30 g/m ² or less.

The diaper main body 12 is preferably provided with leg elastic members 21 extending in the front-rear direction y on both sides in the width direction x (see FIG. 7). By providing the leg elastic members 21, it is possible to form gathers around the wearer's legs to improve fit around the legs and prevent side leakage.

The diaper main body 12 may be provided with a waist elastic member 22 extending in the width direction x at an end in the front-rear direction y. The contractile force of the waist elastic member 22 forms waist gathers along the waist of the wearer, preventing leakage of excrement such as urine from the back or abdomen.

As each of the elastic members described above, it is possible to use elastic stretchable materials such as polyurethane thread, polyurethane film, natural rubber, etc., which are usually used for disposable diapers. The elastic member is preferably fixed in a stretched state with an adhesive such as a hot-melt adhesive. For example, a polyurethane thread having a fineness of 40 to 1,240 dtex is stretched at 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. Note that the magnification is 1.0 in the non-expanded state.

The target tape 20 is provided on the outer surface side of the front side portion of the diaper main body 12 and is formed detachably from 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 the description of the hook member and the loop member of the fastening tape is referred to.

In the disposable diaper 11A shown in FIG. 7, the fastening tape 1 is attached to the diaper main body 12 so that the first main surface 2A of the tape substrate 2 faces the skin side of the disposable diaper 11A. In the fastening tape 1, the first fastener 3 and the second fastener 4 attached to the first main surface 2A of the tape substrate 2 are detachable from the target tape 20. As shown in FIG.

The fastening tape 1 has the tape body portion 6 attached to the diaper body 12 . In the disposable diaper 11A, the inner portion of the tape body portion 6 in the width direction x is attached to the diaper body 12, and the tape body portion 6 further extends outward in the width direction x from the inner portion. The inner portion of the tape body portion 6 in the width direction x is preferably fixed between the side sheet 16 and the back sheet 14, so that the fastening tape 1 can be attached to the diaper body 12 stably.

The fastening tape 1 is formed by extending a tab portion 7 further outward in the width direction x from the tape body portion 6, and a first fastener 3 and a second fastener 4 are provided on the skin surface side of the tab portion 7. It is In the disposable diaper 11A, one fastening tape 1 has a plurality of (specifically, two) knob portions 7 arranged side by side in the front-rear direction y. and a second fastener 4 are provided. The first fastener 3 and the second fastener 4 have non-linear outer edges on the sides facing each other.

Since the disposable diaper 11A is provided with the fastening tape 1 configured as described above, the fastening tape 1 can be stably fastened to the target tape 20 provided on the front side portion of the disposable diaper 11A. That is, since the fastening tape 1 is provided with a plurality of fasteners of the first fastener 3 and the second fastener 4 separated from each other, the fastening tape 1 can be stably fastened to the target tape 20. can be done. Also, in the case of so-called cross fastening, in which two knob portions 7 arranged side by side in the front-rear direction y are overlapped and fastened so as to cross each other, the fastening tape 1 can be preferably fastened. can. On the other hand, when the fastening tape 1 is peeled off from the target tape 20, the first fastener 3 and the second fastener 4 have non-linear outer edges on the sides facing each other. The fastening tape 1 can be easily peeled off from the target tape 20 by putting a finger between the second fasteners 4 and lifting the fastening tape 1. - 特許庁

In the disposable diaper 11A, the fastening tape 1 attached on the left side in FIG. 1 can be folded compactly. The fastening tape 1 is folded back with the first main surface 2A facing inward, so that when the fastening tape 1 is folded back along the fold line F1, the first fastener 3 and/or the second fastener 4 are attached to the tape base. It can be temporarily fixed to the material 2. Therefore, the folded state of the fastening tape 1 can be stably maintained before use of the disposable diaper 11A. The fold line F1 is preferably formed along the linear outer edge of the first fastener 3 or the second fastener 4, which makes it easier to fold the fastening tape 1 along the fold line F1. In FIG. 7, the fold line F1 is formed along the inner edge in the width direction x of the second fastener 4 provided on the base end side of the fastening tape 1 . The fold line F1 is preferably formed within 5 mm from the linear outer edge of the first fastener 3 or the second fastener 4, and more preferably within 3 mm. This makes it easier to fold the fastening tape 1 along the edge of the first fastener 3 or the second fastener 4 when folding the fastening tape 1 along the folding line F1.

In the disposable diaper 11A, the fastening tape 1 may be further folded at the fold line F2 along the side edge of the diaper main body 12 in the width direction x. As a result, the fastening tape 1 can be folded more compactly before use of the disposable diaper 11A. The fold line F2 is preferably formed within 3 mm, more preferably within 2 mm, from the side edge of the diaper body 12 in the width direction x. The fold line F2 is preferably formed so as not to overlap the knob portion 7 folded back at the fold line F1.

FIG. 9 shows another example of the disposable diaper of the present invention. FIG. 9 shows a plan view of the disposable diaper viewed from the skin side. In FIG. 9, the same constituent members as those of the fastening tape and the disposable diaper shown in FIGS. 1 to 8 are indicated using the same reference numerals. Also, in the explanation of the disposable diaper and the fastening tape shown in FIG.

The disposable diaper 11 (11B) shown in FIG. 9 differs from the disposable diaper 11A shown in FIG. 7 in the manner in which the fastening tapes 1 are installed. A plurality (specifically, two) are provided side by side in y. In addition, it is preferable that the fastening tape 1 provided on the disposable diaper 11B is provided with only one knob portion 7 . Each fastening tape 1 is provided with a first fastener 3 and a second fastener 4 on the knob portion 7, and the outer edges of the first fastener 3 and the second fastener 4 on the side facing each other are non-linear. formed. Thereby, the fastening tape 1 can be stably fastened to the target tape 20 provided on the front side portion of the disposable diaper 11B. Also, in the case of so-called cross fastening, in which two knob portions 7 arranged side by side in the front-rear direction y are overlapped and fastened so as to cross each other, the fastening tape 1 can be preferably fastened. can. On the other hand, when peeling off the fastening tape 1 from the target tape 20, the fastening tape 1 is removed from the target tape 20 by inserting a finger between the first fastener 3 and the second fastener 4 and lifting the fastening tape. Easy to peel off.

In the disposable diaper 11B, the entire tape body portion 6 of the fastening tape 1 is attached to the diaper body 12, and the knob portion 7 is provided so as to extend outward in the width direction x from the diaper body 12. . The fastening tape 1 may be attached to the diaper body 12 in this manner. Note that the fastening tape 1 shown in FIG. 9 does not exclude a mode in which only part of the tape main body 6 is attached to the diaper main body 12 .

In the disposable diaper 11B, the fastening tape 1 attached on the left side in FIG. The fastener 3 and the second fastener 4 are temporarily fastened to the skin side of the diaper main body 12. - 特許庁In this way, the first fastener 3 and/or the second fastener 4 of the fastening tape 1 may be temporarily fastened to the diaper main body 12 before the disposable diaper 11B is used, whereby the fastening tape 1 is folded back. stable state can be maintained.

An example of the method for manufacturing the fastening tape of the present invention will be described with reference to FIGS. 10 and 11. FIG. The method for manufacturing the fastening tape of the present invention is not limited to the embodiments shown in the drawings.

FIG. 10 shows a method of manufacturing the fastening tape shown in FIGS. 1 and 2. As shown in FIG. The manufacturing method shown in FIG. have.

In the fastener conveying step 31, the elongated body 41 of the fastener providing the first fastener and the second fastener is delivered in the conveying direction v. The elongated body 41 of the fastener has a long shape in the conveying direction v, and the first fastener and the second fastener are continuously connected in the conveying direction v, and are connected in the width direction w. be. The elongated body 41 of the fastener preferably has a rectangular shape elongated in the conveying direction v.

In the fastener cutting step 32, the elongated body 41 of the fastener is cut along a wavy cutting line 43 extending in the conveying direction v, and divided into two in the width direction w to form a first elongated fastener. 41A and a second fastener elongate body 41B are obtained. The wavy cutting line 43 includes sine wave, triangular wave, rectangular wave, and the like. By cutting the elongated body 41 of the fastener in this manner, the outer edges of the first fastener and the second fastener on the sides facing each other can be formed to have mutually complementary shapes. On the other hand, the outer edges of the first fastener and the second fastener opposite to each other may be formed in a straight line.

In the tape substrate conveying step 33, the elongated body 44 of the tape substrate is delivered in the conveying direction v. The elongated body 44 of the tape base material has a shape elongated in the transport direction v. As shown in FIG. The elongated body 44 of tape base material has both side portions and a central portion therebetween with respect to the width direction w. Both sides include side edges in the width direction w of the elongated body 44 of the tape base material, and are defined as areas having a predetermined length in the width direction w from the side edges.

In the fastener installation process 34, the first fastener elongated body 41A and the second fastener elongated body 41B obtained in the fastener cutting process 32 are delivered in the conveying direction v and separated from each other in the width direction w. and attached to the elongated body 44 of the tape base material to obtain a precursor of the fastening tape. The elongated body 41A of the first fastener and the elongated body 41B of the second fastener are arranged in the center portion of the elongated body 44 of the tape base material in the width direction w and spaced apart from each other in the width direction w. be done. Before the first fastener elongated body 41A and the second fastener elongated body 41B are arranged on the elongated body of tape substrate 44, the surfaces facing the elongated body of tape substrate 44 are opposed to each other. Preferably, the adhesive is applied to the

In the meandering line cutting step 35, the precursor of the fastening tape extends in the conveying direction v, and traverses the elongated body 41A of the first fastener and the elongated body 41B of the second fastener in the width direction w. Cut along a linear cutting line 45 . As a result, the fastening tape precursor is divided into two in the width direction w to obtain the fastening tape continuum 46 (46A, 46B). A meandering cutting line 45 forms the outer edge of the tab of the fastening tape. The peak of the meandering amplitude of the cutting line 45 may include a straight portion extending in the conveying direction v. By cutting the precursor of the fastening tape along the meandering cutting line 45 in this manner, the grip portion is formed from the portion within the amplitude range of the meandering line, and the tape is formed from the portion outside the amplitude range in the width direction w. A body portion is formed.

In FIG. 10, in the fastening tape continuous body 46A, the first fastener provided on the distal end side of the knob portion is formed from the first fastener elongated body 41A, and the second fastener elongated body is formed. 41B forms a second fastener that is provided on the proximal side of the tab. In the fastening tape continuous body 46B, the first fastener provided on the tip side of the tab portion is formed from the elongated body 41B of the second fastener, and the elongated body 41A of the first fastener is formed with the tab. A second fastener is formed that is located proximally of the portion. The fastening tape continuum 46 is formed by attaching the first fastener elongated body 41A and the second fastener elongated body 41B to the tape base elongated body 44 as described above, thereby forming a meandering line. By cutting along the cutting line 45, the first fastener and the second fastener are provided so as to traverse the grip in the conveying direction v in each grip. That is, in each knob portion, the edges of the first fastener and the second fastener in the conveying direction v are aligned with the edges of the tape substrate in the conveying direction v over the entire width direction w of the edges. formed in

After the meandering line cutting step 35, in an individual cutting step 36, the fastening tape continuous body 46 is cut along a cutting line 47 extending in the width direction w at the valley of the meandering cutting line 45 to form an individual fastening tape. A wearing tape 48 is obtained. In FIG. 10, a cutting line 47 is formed every other trough of the meandering cutting line 45, thereby obtaining a fastening tape 48 having two grip portions on one tape main body. In FIG. 10, the fastening tape 48 is obtained with the first fastener and the second fastener attached to the first major surface of the tape substrate.

FIG. 11 shows a method of manufacturing the fastening tape shown in FIGS. The manufacturing method shown in FIG. 11 also includes a fastener conveying step 31, a fastener cutting step 32, a tape substrate conveying step 33, a fastener installing step 34, a meandering line cutting step 35, and an individual cutting step 36. have. In the manufacturing method shown in FIG. 11, in the fastener conveying step 31, the fastener elongated body 41 is fed out in the conveying direction v, and the fastener elongated body 42 for providing the third fastener (hereinafter referred to as "the third fastener"). 3) is fed out in the conveying direction v. Then, in the fastener installation step 34, the surface of the elongated body 44 of the tape substrate opposite to the surface on which the elongated first fastener 41A and the elongated second fastener 41B are installed. , attach the elongated body 42 of the third fastener. The elongated body 42 of the third fastener is attached between the elongated body 41A of the first fastener and the elongated body 41B of the second fastener in the width direction w, thereby providing a fastening tape. is obtained. After that, in the meandering line cutting step 35, the precursor of the fastening tape is extended in the conveying direction v to form the elongated body 41A of the first fastener, the elongated body 41B of the second fastener, and the third fastener. are cut along meandering cutting lines 45 crossing the width direction w. As a result, the fastening tape 48 is obtained in which the first fastener and the second fastener are attached to the first main surface of the tape substrate, and the third fastener is attached to the second main surface of the tape substrate.

Although not shown in the drawings, before the individual cutting step 36, a step ( folding step) may be provided. As a result, the fastening tape continuous body 46 with the tab portion folded back can be obtained. In this case, in the individual cutting step 36, the continuum 46 obtained in the folding step and having the tab portion folded back is cut along the cutting line 47 extending in the width direction w at the valley of the meandering cutting line 45. , a separate fastening tape 48 can be obtained.

1: Fastening Tape 2: Tape Base Material 3: First Fastener 4: Second Fastener 5: Third Fastener 6: Tape Body Part 7: Knob Part 11: Disposable Diaper 12: Diaper Body 13: Top Sheet 14 : Backsheet 15: Absorbent 20: Target tape 31: Fastener conveying process 32: Fastener cutting process 33: Tape substrate conveying process 34: Fastener installation process 35: Meandering line cutting process 36: Individual cutting process 41, 42 : Long body of fastener 44: Long body of tape base material 46: Continuous body of fastening tape 48: Individual fastening tape

Claims (11)

A fastening tape provided on a disposable diaper,
The fastening tape comprises a tape base material having a first main surface and a second main surface opposite to the first main surface, and a first fastener and a second fastener provided on the first main surface of the tape base material. have
The first fastener and the second fastener are arranged apart from each other in a plan view of the first and second main surfaces of the tape substrate, and the first fastener faces the second fastener. A fastening characterized in that the outer edge on the side is formed in a non-linear shape and/or the second fastener has an outer edge on the side opposite to the first fastener that is formed in a non-linear shape. tape. The first fastener has a non-linear outer edge on the side facing the second fastener, and the second fastener has a non-linear outer edge on the side facing the first fastener. The fastening tape according to claim 1. 3. The fastening tape according to claim 1, wherein hook members or loop members of hook-and-loop fasteners are provided as said first fastener and said second fastener. A third fastener is provided on the second main surface of the tape base material, and the third fastener includes the first fastener and the third fastener in plan view of the first and second main surfaces of the tape base material. It is provided between 2 fasteners,
According to any one of claims 1 to 3, a hook member of a hook-and-loop fastener is provided as the first fastener and the second fastener, and a loop member of a hook-and-loop fastener is provided as the third fastener. The described fastening tape. A third fastener is provided on the second main surface of the tape base material, and the third fastener includes the first fastener and the third fastener in plan view of the first and second main surfaces of the tape base material. It is provided between 2 fasteners,
According to any one of claims 1 to 3, wherein a hook-and-loop fastener loop member is provided as the first fastener and the second fastener, and a hook-and-loop fastener hook member is provided as the third fastener. The described fastening tape. 5. Said 1st fastener and/or said 2nd fastener are arrange|positioned so that it may not overlap with said 3rd fastener by the planar view of the 1st and 2nd main surfaces of said tape base material, or 5. The fastening tape according to 5. 5. Said 1st fastener and/or said 2nd fastener are arrange|positioned overlapping with a part of said 3rd fastener by the planar view of the 1st and 2nd main surfaces of said tape base material. 6. or the fastening tape according to 5. The fastening tape according to claim 7, wherein the first fastener and/or the second fastener overlap only a portion of the non-linearly formed outer edge with the third fastener. A disposable diaper, wherein the fastening tape according to any one of claims 1 to 8 is attached to both sides in the width direction of a diaper body. The fastening tape has a tape main body, and a plurality of tabs extending from the tape main body in the width direction of the diaper and arranged side by side in the front-rear direction of the diaper,
10. The disposable diaper according to claim 9, wherein said first fastener and said second fastener are respectively provided on said plurality of tabs. 11. The disposable diaper according to claim 9 or 10, wherein a plurality of said fastening tapes are arranged in the front-rear direction of the diaper on said diaper main body.

Images