JP5167096B2 - Fastening tape, absorbent article using the same, and cover for absorbent article - Google Patents

Description

  The present invention relates to an absorbent article and a fastening tape used for an absorbent article cover, an absorbent article using the same, and an absorbent article cover.

  The unfolded disposable diaper usually has a rear part along the back side, a front part along the ventral side, and an intermediate part located between the rear part and the front part. When this intermediate portion is worn along the crotch of an infant or the like, the back side flap is kept on the wearer's abdomen and is fixed to the outer surface of the front portion of the diaper by a fixing member. Thereby, a diaper can be clamped moderately around a waist and it can fix so that it may not slip off. As the fixing member, an adhesive sheet that can be repeatedly fixed and peeled and a fastening tape that enables mechanical joining are widely used.

  A fastening tape generally has an adhesive sheet or a planar mechanical fastener, and has a structure in which, for example, this is attached to a flap portion of a diaper together with a base sheet. Among these, examples of the mechanical fastener include a minute hook-shaped projection having a hook shape that enables engagement with fibers and the like, and a planar fastener (male material) having a large number of mushroom-like ones. On the other hand, the portion that receives the planar fastener (male material) at the front side of the ventral side may be a normal non-woven fabric, but for example, a landing tape having a looped or fluffy surface fiber structure so as to realize an effective hooking of the hook. (Female material) or the like is used.

  As a specific structure of the fastening tape, for example, there is a structure in which a flap portion of a diaper main body is sandwiched between a planar fastener having a bondable surface and a base sheet. The fastening tape to which such an attachment method is attached is referred to as “Y bond method” based on the shape of the fastening tape viewed from the side. As an example to which this Y bond method is applied, there is a fastening tape that is fixed to the inner surface of the end edge portion of the main body sheet with one end in the longitudinal direction of a planar mechanical fastener and a base sheet (see Patent Document 1). ). This mechanical fastener is provided with a number of mushroom-shaped micro hooks, and is a long rectangular planar fastener extending in the direction extending from the main body sheet as a whole. Thus, sufficient fastening strength of the fastening tape is realized, and the manufacturing cost can be reduced. Further, as a similar Y-bond type, there is disclosed one in which a side edge portion of a diaper main body is sandwiched between a flat plate fastener having many T-shaped hooks and a back material (see Patent Document 2). .

JP 2000-269 A Japanese National Patent Publication No. 10-500326

  The present invention is a fastening tape having a fastener having an adhesive surface used for an absorbent article or an absorbent article cover, and when the absorbent article is attached and fixed to a predetermined landing tape or the like In addition, tension is applied to the joining portion of the tape base and the diaper end, and the engaging force is reduced due to wrinkles in the engaging portion or due to the difference in rigidity between the tape base and the diaper. Fastening tape that suppresses and prevents the longitudinal end of the diaper of the tape base material from warping outward, and maintains a good bonded state when worn, and absorbent articles and absorbent articles using the same The purpose is to provide a cover.

  The present invention is a fastening tape having a base sheet and a fastener having an adhesive surface, and the fastening tape has a region on the fixed base side including at least a part of the fastener, the one edge side being a fixed base side. Attached to the side edge of the absorbent article or absorbent article cover, the other edge side of the fastening tape is the free end side that does not overlap the side edge, There is a cut on the fixed base side, and the cut achieves the above-mentioned object by a fastening tape having a shape in which the cut width increases toward the fixed base side.

  The fastening tape of the present invention has a fastener having an adhesive surface, and when this is joined to a predetermined landing tape or the like and an absorbent article or the like is attached and fixed, the tape base material and the diaper end of the fastener are joined. Suppresses the engagement force from being lowered due to tension applied to the part and wrinkles on the engaging part or the difference in rigidity between the tape base and the diaper, and the length of the diaper of the tape base. It is possible to prevent the direction end portion from warping outward and to maintain an excellent bonded state when worn. In addition, the fastening tape of the present invention can exhibit the above performance without depending on a complicated structure or a special member, so that it does not require an extra manufacturing process or a special member, and is excellent in productivity.

Hereinafter, the fastening tape of the present invention will be described with reference to the drawings based on a deployable disposable diaper as a preferred embodiment thereof.
FIG. 1 is a perspective view schematically showing a developed disposable diaper provided with a fastening tape (Embodiment 1) which is a preferred embodiment of the present invention, generally in a shape when worn. FIG. 2-1 is a plan view schematically showing a state when the disposable diaper shown in FIG. 1 is developed and viewed from the inner side (surface sheet side). FIG. 2B is an enlarged plan view of region A in FIG. 3 is an enlarged cross-sectional view taken along line III-III in FIG.

  The fastening tape 1 according to the first embodiment is a pair of left and right, and is disposed on each side flap Sr at both side edges of a diaper rear portion r disposed on the back side of the wearer of the diaper 10. When an infant or the like is to wear it, this rear part r is arranged on the wearer's back side, and the diaper crotch center part c is placed along the crotch, and the front part f is applied to the wearer's lower abdomen. At this time, the rear side flap Sr is placed on the ventral side from the back, and the side flap Sf of the ventral front portion f is covered with the side flap Sr. Then, the fastening tape 1 is pressed against the landing tape (fastener receiving portion) 6 and joined to the surface of the landing tape 6 by the fastener 11 provided inside the fastening tape. After using the diaper, the fastening tape 1 can be peeled off from the landing tape 6 and the diaper can be unfolded from the rear side flap Sr to be removed from an infant or the like.

  The disposable diaper 10 shown in the first embodiment includes a liquid-permeable top sheet 3, a liquid-impermeable or water-repellent back sheet 5 (see FIG. 3), and liquid holding interposed between both sheets 3 and 5. The absorbent body 4 is provided. As a developed shape of the entire diaper (see FIG. 2-1), a substantially vertically long hourglass shape, that is, both longitudinal ends (abdominal front part f, back side rear part r) are widened, and the central part c has a gentle curve and can be bundled. The top sheet 3 and the back sheet 5 respectively extend outward from the left and right side edges of the absorber 4. The back sheet 5 defines the outline of the disposable diaper 10, and may be further disposed by covering the outside of the back sheet with an exterior sheet made of a nonwoven fabric that takes into consideration the texture and appearance.

  The disposable diaper 10 is provided with a pair of leak-proof cuffs 17 and 17 along both longitudinal sides of the absorbent body 4 (see FIG. 2). Each leak-proof cuff 17 is formed by disposing a side sheet 8 made of a nonwoven fabric provided with an elastic member 15 across both side edges of the top sheet 3. Each side sheet 8 is fixed on the top sheet 3 over the diaper longitudinal direction between the side edge of the absorber 4 and the elastic member 16 for leg gather formation. The free end (inner end) of the leak-proof cuff 17 is formed substantially parallel to the diaper longitudinal direction when the diaper is deployed. By using the leak-proof cuff 17 having such a configuration, an appropriate contraction force of the elastic members 15 and 15 acts when worn, and the free end edge of the leak-proof cuff 17 rises to constitute a three-dimensional gather. This three-dimensional gather abuts firmly on the skin, blocking the transfer of excrement to the outside and effectively preventing side leakage.

In the present embodiment, as described above, the two left and right fastening tapes 1 are disposed on the rear side flap Sr. The fastening tape 1 according to the present embodiment includes a base sheet 12 and a fastener 11 having an attachable surface joined to a part of an inner side surface 12i (see FIG. 3) of the base sheet 12. And said fastening tape 1 is an area e ₄ of the fixed base T side of the tape is its inner edge 1a side (Fig. 2-2, see FIG. 3), is mounted by a so-called Y-bonding method. In other words, the rear side flap Sr of the diaper is sandwiched between the inner side surface 12 i of the base sheet 12 and the outer surface 11 o of the fastener 11 so as to be fixed. At this time, it is adapted and side flaps Sr forming the side edges of the fastener 11 and the diaper overlap in a region, which accounts for more than half of the fastener 11 in the inner region e _4. The bonding method of each member is not particularly limited, and it can be bonded by an adhesive used for a normal sheet material of this type. As described above, in the first embodiment, it is possible to employ a Y bond method that has a simple structure but high attachment strength and excellent handling properties as a fastening tape. For this reason, the manufacturing process is not complicated, and the above-described excellent handling property and high strength can be realized without using extra members or special materials.

The structure of the attachable surface of the fastener 11 is not particularly limited, and an adhesive sheet or a planar mechanical fastener can be used. For example, in the case of a planar mechanical fastener (planar fastener), the inner surface 11i is provided with a large number of minute projections (not shown) forming hooks or mushroom-like hooks over the entire surface, and the front part of the diaper. The individual hooks are firmly fixed to the fibers on the surface of the looped or fluffy non-woven fabric of the landing tape 6 disposed on f. The planar fastener 11 and the base sheet 12 are wide rectangles, and the width direction (longitudinal direction) coincides with the longitudinal direction (Y direction) of the diaper (see FIG. 2-1). The fastening tape 1 is directed to an outer surface 12o of the base sheet to the non-skin contact surface, expand the extending portion e ₃ of the free end portion S side is the outer edge 1b side from a side edge Se of the side flaps body It extends outward in the diaper width direction (see FIGS. 2-1 and 2-2). At this time, the base sheet 12, the a and extending outwardly of the side flaps Sr in a similar extended portion e _3, the fastener 11 extends from the side flaps side edge Se in the extended portion e _1. The base sheet 12 is further outward of the fastener 11, it extends in the extending portion e _2.

The dimensions of the fastening tape 1 of the present embodiment can be appropriately set according to the specific application. For example, it is used for diapers for infants, and the length in the longitudinal direction (Y direction) of the base sheet 12 is preferably 20 to 50 mm, and the length in the width direction (X direction) is 30 to 70 mm. Preferably there is. From the viewpoint of fastening operability of the fastening tape, it is preferably 20 to 55 mm in the longitudinal direction of the extension part e ₃ , and the length of the extension part e ₂ is preferably 5 to 50 mm. The dimensions of the entire fastening tape are the same as those of the base sheet.

The length in the longitudinal direction (Y direction) of the fastener 11 is preferably 20 to 50 mm, and the length in the width direction (X direction) is preferably 20 to 50 mm. It is preferable length of the extension of the fastener out portion _{e 1} is 10 to 40 mm.

In the first embodiment, the fastening tape 1 is attached to the side flap Sr which is the side edge of the diaper in the region including the fixed base T as described above. There is a cut 18 on the fixed base T side (see FIGS. 1, 2-1, and 3). The notch 18 has a shape in which the notch width increases toward the fixed base side. Specifically, the cut 18 in the present embodiment has a mountain shape in plan view. Here, the “mountain shape” corresponds to an isosceles triangle in which the length of the cut edge line 18c is equal in two sides as shown in the figure, a triangle in which each side is not equal in length, or a cut vertex (end point) 18b. Includes trapezoids with truncated portions. More precisely about further cuts in the width, the width of the notch 18 in the present embodiment, the cut forms a vertical angle instead of the width of the apex 18b, spread over the width w ₂ of the intermediate point, further cuts opening (starting) 18a switching the write width w ₁ is to become more widely. The cut width w ₁ of the cut opening is not particularly limited, and can be, for example, 1/5 to 2/3 mm of the length in the Y direction of the fastener. This cut width may be appropriately determined in relation to the number of cuts when a plurality of cuts are provided as will be described later.

  As described above, the fastening tape of the first embodiment is provided with the notch 18 in the fastener on the fixed base side thereof, so that the infant wears a diaper and the abdominal landing tape (details will be described later) 6. A good bonding state is maintained when engaged with the.

This point will be described based on a diaper 70 having a fastening tape 7 for comparison as an embodiment of the comparison (see FIG. 13). The basic configuration of the diaper is the same as that described in FIG. However, the fastener 71 used for the comparative fastening tape 7 is not cut. Even such a fastener 71 can be joined and fixed to the landing tape 6. However, when the side flap Sr is pulled in the waistline direction due to the body shape and movement of the infant to be worn, the good engagement state may not be maintained. Specifically, the fastener is usually stiffer than the surrounding sheet members, and when the tension in the waistline direction is strongly received from the side flap Sr side, the fastener floats so that the center rises. Accordingly, float q ₁ occurs over the side flaps Sr to pull the central and tail therefrom the fastener 71. When the float q ₁ increases, the fastener 71 is peeled by an external input during a landing tape 6, for example worn, causing inadvertent peeling of the fastening tape.

Or the fastener corner | angular part 71a on the opposite side to the fixed base T of a fastening tape may peel locally (partial peeling p). Accordingly, float q ₂ to likewise side flaps Sr in the case of the central portion is propagated occurs, exfoliated fastening tape by a movement of the wearer. Further, the partial peeling p of the corner 71a becomes a gap into which a finger enters when a mother or the like holds an infant, and this leads to peeling of the fastening tape. In addition, when a garment made of a soft material is worn outside the diaper, it is difficult to peel off the corner 71a because the corner 71a is turned up and the surface to which the fastener 71 can be adhered is strongly attached to the garment. May accompany.

  On the other hand, in the fastening tape of the present embodiment, as shown in FIG. 1, wrinkles and floats in the center of the fastener 11 are attracted to the notch 18 of the fastener. The portion of the notch 18 is a portion that is not involved in the engagement between the fastener 11 and the landing tape 6, and even if wrinkles or floats occur, this engagement property is not substantially affected. That is, according to the present embodiment, the distortion in the side flap Sr caused by the tension in the waistline direction is collected in the notch 18, and the propagation of the distortion to the engaging surface of the fastener 11 is effectively buffered or blocked. Can do. As a result, a good bonding state of the fastening tape is maintained for a long time when worn.

  Floating and peeling of the fastener and its neighboring members as occurred in the fastening tape 7 for comparison are promoted by the in-plane deformation when the elastic sheet is used for the side flap Sr, and becomes more remarkable. Similarly, it becomes more prominent when the fastening tape is widened, that is, when the tape length in the longitudinal direction (Y direction) of the developed diaper (see FIG. 2-1) is increased. On the other hand, when considering the comfort and fit of the diaper, the ability to follow the movement of the baby's abdomen, and the ease of wearing the diaper, it is desirable to use a side flap Sr that has elasticity. Further, in order to increase the fastening area of the fastening tape and thereby realize stable fixing, it is desired to widen the fastening tape. However, as described above, the fastening tape 7 for comparison without a cut is employed, and it is difficult to improve various characteristics.

  On the other hand, according to the fastening tape 1 provided with the cut according to the first embodiment, the side flap Sr having elasticity and the wide fastening tape 1 can be suitably employed. As a result, various characteristics required for diapers such as those described above, such as “comfort of diapers”, “fitness”, “followability to infant movement”, “ease of wearing diapers”, “stable fastening of fastening tape”, etc. Can be realized at the same time.

  FIG. 4 is a plan view schematically showing a fastening tape (Embodiment 2) which is another preferred embodiment of the present invention. In the same figure, the part corresponding to FIG. 2-2 in the said Embodiment 1 is shown (this is the same also in the following FIGS. 5-9). In the second embodiment, two angled cuts 18 are provided in parallel on the fixed base T side on the inner edge 1a side. By doing so, the distortion in the side flap Sr caused by the tension in the circumferential direction of the trunk is gathered into two cuts, which is particularly effective in the case of a wide fastening tape. When a plurality of the cuts 18 are provided, the number is not particularly limited, but 3 or less is practical for diapers for infants and 5 or less is practical for adults.

  FIG. 5: is a top view which shows typically the fastening tape (Embodiment 3) which is another preferable embodiment of this invention. In the third embodiment, the cut 18 is formed into a waveform. In the present invention, the waveform means a cut in which the cutting edge line 18c is formed of a curve, and in addition to a parabolic shape as shown in the figure, a semicircular shape, a cutting line itself becomes a wavy line, and a mountain shape as a whole. But you can. In the third embodiment, one waveform cut is provided, but two or more may be provided in parallel on the fixed base T side. The number of cuts at that time is the same as that described in the second embodiment. By using the corrugated notch as in the third embodiment, when the mother or the like opens the base tape before wearing, the corner 18e does not hit the finger and the fastener portion does not turn up. In addition, the appearance is soft due to the rounded corners. In the present embodiment, the free edge 12t of the base sheet is corrugated. In this way, the edges of the base sheet or fastener, including the free edge of the base sheet, may be processed so as to have a predetermined shape in consideration of the appearance and ease of stagnation.

FIG. 6 is a plan view schematically showing a fastening tape (Embodiment 4) which is still another preferred embodiment of the present invention. In the fourth embodiment, the cut 18 has a mountain shape, but the cut end point 18b reaches the fastener edge 18d on the opposite side of the fixed base T, that is, the free end S side. In other words, the cut 18 is formed over the entire length of the extending portion e ₁ of the fastener. By doing in this way, the fitting property to the vertical direction of the baby's abdomen, that is, the curved surface in the Y direction of the diaper, is further improved, and is followed by a change in the degree of abdominal bulge caused by meals, body posture, and the like.

  FIG. 7 is a plan view schematically showing a fastening tape (Embodiment 5) which is still another preferred embodiment of the present invention. In the fifth embodiment, the cut 18 has a waveform, and the cut end point 18b reaches the fastener edge 18d on the free end S side. Two cuts 18 are formed. In this way, when there are a plurality of cuts and the length is long, the corner 18e, which is more acute, is round, so that the corner 18d does not hit the finger when opening the base tape before mounting. It is more preferable that the effect of preventing the fastener part from turning over and the appearance impression become soft.

  FIG. 8 is a plan view schematically showing a fastening tape (Embodiment 6) which is still another preferred embodiment of the present invention. In the sixth embodiment, the cut 18 has a mountain shape, but the cut end point 18b reaches the fastener edge 18d on the opposite side of the fixed base T, and the cut end point 18b is open. In other words, the notch 18 is formed over the entire length from the fixed base T side of the fastener 11 to the edge 18d on the opposite side (free end S side), whereby the fastener 11 is divided into fastener constituent portions 11s and 11t. Yes. In this way, it is easy to follow more complicated changes in the shape of the abdomen, such as the leaning posture of an infant with more rapid movement.

  FIG. 9 is a plan view schematically showing a fastening tape (Embodiment 7) which is still another preferred embodiment of the present invention. In the seventh embodiment, two cuts 18 for dividing the fastener 11 of the sixth embodiment are provided. Therefore, the fastener 11 is divided into three fastener constituent portions 11s, 11t, and 11u, and the cut opening 18a and the cut end point 18b are each two. In this way, two cut openings 18a are formed. Thus, the effect | action which provides multiple cut | notch parts is common in the said Embodiment 2 (refer FIG. 4).

  Next, the landing tape 6 will be described. The landing tape 6 is affixed to the outer surface of the diaper of the ventral front part f, that is, the surface on the non-skin contact surface side, and is a horizontally long rectangle whose longitudinal direction coincides with the diaper width direction (FIG. 1). FIG. 2-1). The landing tape 6 can be formed into a disposable diaper wearing form by fastening the fastening tape 8 (see FIG. 1). In the case where a planar mechanical fastener is used as the fastening tape, and the surface on the non-skin contact surface side of the disposable diaper 10 is formed from a sheet that can be fixed to the male mechanical fastener 11 The landing tape 6 is not always necessary.

  As the top sheet 3, the back sheet 5, and the absorber 4, various materials used in ordinary absorbent articles and the like can be used. As a forming material of the base material sheet 11 of the fastening tape 1, various tape materials such as a nonwoven fabric or a synthetic resin film used in a normal disposable diaper can be used. From the viewpoint, it is preferable to use a nonwoven fabric. The material for forming the landing tape 6 is preferably a nonwoven fabric used as a female material for mechanical fasteners used in disposable diapers or the like, or a synthetic resin film joined with a nonwoven fabric or a knitted fabric. The nonwoven fabric used as a female material is preferable. As a material for forming a planar mechanical fastener (planar fastener), for example, a material having a configuration corresponding to a male member of a mechanical fastener such as “Magic Tape (registered trademark)” (manufactured by Kuraray Co., Ltd.) is used. Tape-shaped ones with a large number of hook-shaped male engaging members arranged as hooks on the surface of the base material, or ones with a large number of fishing-type male engaging members arranged as hooks on the surface of the sheet base material Is formed. Other mechanical fasteners include “Quicklon” (registered trademark, manufactured by YKK), “Majikurosu” (registered trademark, manufactured by Kanebo Bell Touch), “CS-200” (trade name, manufactured by 3M). And various commercial products.

  In each of the above-described embodiments, the side flap Sr has a shrinkable property, but the method for imparting stretchability is not particularly limited. The side flap Sr may be provided with rubber, the diaper may be made of an elastic nonwoven fabric, and the diaper body may be attached with an elastic sheet on the side edge.

  FIG. 10 shows an embodiment (Embodiment 8) in which the stretchable sheet 2 is used for the side flap Sr. FIG. 11 is a plan view schematically showing a state when the disposable diaper shown in FIG. 10 is developed and viewed from the inner side (surface sheet side). 12 is an enlarged cross-sectional view taken along the line XII-XII of FIG.

In the stretchable sheet 2 of Embodiment 8, the maximum elongation of the sheet is 50% or more, and the elongation recovery rate when the sheet is contracted after being stretched to a stretch of 50% in a predetermined direction, that is, 50%. Those having an elongation recovery rate of 60% or more during elongation are preferred. Such extensibility may be provided in at least one of the in-plane directions. Here, the elongation recovery rate is measured by the following method.
[Measurement method of elongation recovery rate]
Prepare a sample piece of a sheet with a length of 50 mm and a width of 25 mm, and fix the sample piece to the chuck interval K0 using a tensile tester ("Tensilon" RTC-1150A [trade name] manufactured by Orientec Co., Ltd.). When the stress becomes zero after the tensile force is released at the same speed as the tensile speed after extending to the length K2 (K2 = K0 × 2) at the time of 50% elongation at a speed of 300 mm / min. The length of the sample piece is defined as the length K1 after recovery from elongation. From this measurement result, the extension recovery rate at 50% extension is calculated by the following equation.
Elongation recovery rate at 50% elongation (%) = [(K2−K1) / (K2−K0)] × 100 When there are a plurality of directions in which the maximum elongation is 50% or more, only one of them is the only direction The elastic sheet also includes those exhibiting the maximum elongation and elongation recovery rate.

  Examples of the elastic sheet 2 include elastic nonwoven fabrics. For example, there are those in which the same or different substantially inelastic non-elastic fiber layers are laminated on both surfaces of the elastic fiber layer. At this time, it is preferable that the elastic fiber layer and the non-elastic fiber layer are bonded to the entire surface by thermal fusion of the fiber intersections in a state where the constituent fibers of the elastic fiber layer maintain the fiber form. In this embodiment, at the interface between the elastic fiber layer and the non-elastic fiber layer and in the vicinity thereof, the intersection of the constituent fiber of the elastic fiber layer and the constituent fiber of the non-elastic fiber layer is heat-sealed, Therefore, it is preferable that the entire surface is uniformly bonded. Further, in at least one of the two inelastic fiber layers, a part of the constituent fibers enter the elastic fiber layer, and / or a part of the constituent fibers of the elastic fiber layer is at least one inelastic. It is preferable to be in a state of entering the fiber layer.

  As the constituent fiber of the elastic fiber layer, for example, a fiber made from a thermoplastic elastomer, rubber or the like can be used. The elastic fiber layer is an aggregate of fibers having elasticity, but inelastic fibers may be included as long as the elastic elasticity is not impaired. The inelastic fiber layer has extensibility but is substantially inelastic. The stretchability here refers to the case where the constituent fibers themselves are stretched, and even if the constituent fibers themselves are not stretched, the two fibers that have been heat-sealed at the intersection of the fibers are separated from each other, or the fibers are thermally fused. Any of the cases in which the three-dimensional structure formed by a plurality of fibers is structurally changed by wearing or the constituent fibers are torn, and the entire fiber layer is elongated. Examples of the fibers constituting the inelastic fiber layer include fibers made of polyethylene (PE), polypropylene (PP), polyester (PET or PBT), polyamide, and the like. Further, core-sheath type or side-by-side composite fibers, split fibers, irregularly shaped cross-section fibers, crimped fibers, heat-shrinkable fibers, and the like can also be used.

The stretchable nonwoven fabric of the above embodiment has stretchability in at least one of the in-plane directions, but may have stretchability in all in-plane directions. In that case, it is not hindered that the degree of elasticity varies depending on the direction. Regarding the direction of expansion and contraction, the degree of elasticity is preferably 10 to 500 cN / 25 mm, more preferably 20 to 100 cN / 25 mm, at 50% elongation. Further, the residual strain when contracted from the 50% stretched state is preferably 15% or less, and more preferably 10% or less.
Further, the contents described in JP-A-2007-138374 can be referred to as the stretchable sheet, and JP-A-2007-84966, JP-2007-22066, etc. may be referred to for the production method. .

  The fastening tape of the present invention is not limited to the above-described embodiment, and can be appropriately changed. For example, the mechanical fastener (planar fastener) may be a female material. In that case, what is necessary is just to provide the male material of the mechanical fastener used as a pair as a landing tape in the non-skin contact surface side of the stomach part of a disposable diaper, for example. Moreover, the fastening tape may be distribute | arranged to the both-sides edge part of the stomach side part of a disposable diaper. In the fastening tape of this invention, each structure of each said embodiment can be combined suitably. Furthermore, the fastening tape of the present invention is not limited to the disposable diaper for infants as in the above embodiment, but may be a diaper for adults. Moreover, the cover pants used in combination with a diaper cover or a urine collecting pad may be used, and it can be suitably used for various absorbent articles and covers for absorbent articles to which the fastening tape is applied.

It is a perspective view showing typically a deployment type disposable diaper provided with a fastening tape (Embodiment 1) which is a preferred embodiment of the present invention. It is a top view which shows typically a state when the disposable diaper shown in FIG. 1 is expand | deployed. It is the top view to which the area | region A of FIGS. 2-1 was expanded. It is sectional drawing which expands and shows the III-III sectional view taken on the line of FIG. It is a top view which shows typically the fastening tape (Embodiment 2) which is preferable embodiment of this invention. It is a top view which shows typically the fastening tape (Embodiment 3) which is preferable embodiment of this invention. It is a top view which shows typically the fastening tape (Embodiment 4) which is preferable embodiment of this invention. It is a top view which shows typically the fastening tape (Embodiment 5) which is preferable embodiment of this invention. It is a top view which shows typically the fastening tape (Embodiment 6) which is preferable embodiment of this invention. It is a top view which shows typically the fastening tape (Embodiment 7) which is preferable embodiment of this invention. It is a perspective view showing typically a deployment type disposable diaper provided with a fastening tape (Embodiment 8) which is a preferred embodiment of the present invention. It is a top view which shows typically a state when the disposable diaper shown in FIG. 10 is expand | deployed. It is sectional drawing which expands and shows the XII-XII line | wire cross section of FIG. It is a perspective view showing typically a deployment type diaper provided with a fastening tape for comparison.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fastening tape 1a Inner edge of fastening tape 1b Outer edge of fastening tape 2 Elastic sheet 3 Top sheet 4 Absorbent body 5 Back sheet 6 Landing tape 8 Side sheet 10 Unfoldable disposable diaper 11 Planar mechanical fastener (surface fastener) )
12 Base material sheet 15 Elastic member 16 for forming three-dimensional gathers Elastic member 17 for forming leg gathers Leak-proof cuff T Fixed base S Free end

Claims (7)

A fastening tape having a base sheet and a fastener having an adhesive surface,
The fastening tape is attached so as to overlap the side edge of the absorbent article or the absorbent article cover in the area of the fixed base side including at least a part of the fastener with the one edge side as the fixed base side, The other edge side of the fastening tape is a free end side that does not overlap the side edge portion, the fastener has a cut on the fixed base side, and the cut has a cut width toward the fixed base side. Fastening tape with a spreading shape.   The fastening tape according to claim 1, wherein the cut is a chevron or a corrugated shape.   The fastening tape according to claim 1 or 2, wherein the notch extends to an edge on the free end side of the fastener, and the fastener is divided into a plurality of parts by the notch.   The said fastening tape is attached so that the side edge part of the said absorbent article or the cover for absorbent articles may be pinched | interposed with the said base material sheet and the said fastener. Fastening tape.   The fastening tape of any one of Claims 1-4 in which the side edge part of the said absorbent article or the cover for absorbent articles was formed with the elastic sheet.   The absorbent article provided with the fastening tape of any one of Claims 1-5.   The cover for absorbent articles provided with the fastening tape of any one of Claims 1-6.

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