JP5413000B2 - Fastening tape, manufacturing method of fastening tape, and tape-type disposable diaper - Google Patents

Description

  The present invention relates to a fastening tape, a method for producing a fastening tape, and a tape-type disposable diaper. More specifically, the present invention relates to a fastening tape capable of improving the adhesive strength between a hook material and a base material, a method for producing the fastening tape, and a tape-type disposable diaper.

  In general, a tape-type diaper is arranged so as to cover the surface of the absorbent body 22 and the absorbent body 22, for example, like a tape-type diaper 150 shown in FIG. 16, and at least a top made of a liquid-permeable material. The sheet 18 is disposed so as to cover the back surface of the absorbent body 22 and includes a back sheet 20 made of a liquid-impermeable material, and includes a front body 2, a crotch 4, and a back body 6. Further, it is disposed so as to extend from the left and right side edges 6a and 6b of the back body 6, and further includes a fastening tape 110 for fixing the front body 2 and the back body 6 (for example, Patent Document 1). reference).

  According to such a tape-type diaper 150, the excrement of the wearer passes through the liquid-permeable portion of the top sheet 18 (the center sheet 18a in the figure) and is absorbed by the absorber 22, and normally the liquid Leakage to the outside is prevented by the back sheet 20 made of an impermeable material, and excrement can be held inside the diaper. Further, by fixing the front body 2 and the back body 6 of the diaper to each other with the fastening tape 110, there is also an advantage that the wearer can easily attach the diaper.

  As such a fastening tape 110, an adhesive fastener that is fixed by the adhesive force of an adhesive has been widely used. However, in recent years, the fixing tape 110 is fixed by mechanical coupling of a convex member (hook member) and a concave member (loop member). The transition to mechanical fasteners (also referred to as planar fasteners) is in progress.

  Such a fastening tape 110 is formed by attaching the hook material 144 of the mechanical fastener described above to the surface of the base material 148 as shown in FIG.

JP 2003-275244 A

As a material of the base material 148, a nonwoven fabric is generally adopted. In this type of nonwoven fabric, generally, 8.5% to 13% of the surface area of a fiber web arranged in a sheet form is subjected to a heat embossing process, and the concave portions and the fiber webs are formed by fusing the front and back fiber webs together. It is comprised with the convex part which rose without being melt | fused. In addition, when fixing the front body and the back body or when adjusting the position of the back body region, it may be strongly pulled, and high strength is required, so the nonwoven fabric is used for the top sheet etc. basis weight is set to a high ^50g / ^{m 2 ~150g} / m 2 than ^{10g / m 2 ~30g / m 2} . For this reason, the unevenness of the surface is remarkable due to the thickness of the non-woven fabric, and the surface of the convex part also has minute unevenness due to the fiber web, and it is difficult to sufficiently secure an effective adhesion area with the hook material 144. there were.

  The present invention has been made in order to solve the above-described problems of the prior art, and sufficiently secures an effective bonding area between the base material and the hook material to increase the adhesive strength between the base material and the hook material. The present invention provides a fastening tape, a method for producing the fastening tape, and a tape-type disposable diaper.

  As a result of intensive studies to solve the problems of the prior art as described above, the present inventor found that the surface of the base material was heat-sealed with the fiber webs of the surface corresponding to the bonding site of the hook material. By forming a fusion part and bonding a hook material to the surface fusion part, by sufficiently securing an effective adhesion area between the base material and the hook material and increasing the adhesive strength between the base material and the hook material The present invention has been completed by conceiving that the above problems can be solved. Specifically, according to the present invention, the following fastening tape, a method for producing the fastening tape, and a tape-type diaper are provided.

[1] A fastening tape used to fix the front and back of a diaper,
Comprising a base material made of a nonwoven fabric, a hook member of a mechanical fastener to be bonded to a portion of the surface of the substrate, the surface of the substrate, corresponding to the attachment site of the hook material, said base material In order to reduce at least the fine irregularities of the fiber web on the surface and the irregularities formed by the heat embossing treatment applied as the surface treatment of the fiber web, a surface fusion part is formed by heat-sealing the fiber webs. The hook material is bonded to the surface fusion part, the surface fusion part is narrower than the hook material in the tape tension direction, the hook material is A fastening tape that is bonded to the surface fusion part and the non-formation part of the surface fusion part located on both sides of the surface fusion part in the tape tension direction .

[ 2 ] A fastening tape used to fix the front and back of the diaper,
A base material made of a nonwoven fabric and a hook material of a mechanical fastener that is bonded to a part of the surface of the base material, the surface of the base material corresponding to the bonding site of the hook material, In order to reduce at least the fine irregularities of the fiber web on the surface and the irregularities formed by the heat embossing treatment applied as the surface treatment of the fiber web, a surface fusion part is formed by heat-sealing the fiber webs. And the hook material is bonded to the surface fusion part, the surface fusion part is a striped pattern intermittently arranged in a direction orthogonal to the tape tension direction, the hook material, said surface fusion part and the surface fused parts of the non-forming fastening that is bonded to the tape strip between said surface fusion part.

[ 3 ] A fastening tape used for fixing a front body and a back body of a diaper,
A base material made of a nonwoven fabric and a hook material of a mechanical fastener that is bonded to a part of the surface of the base material, the surface of the base material corresponding to the bonding site of the hook material, In order to reduce at least the fine irregularities of the fiber web on the surface and the irregularities formed by the heat embossing treatment applied as the surface treatment of the fiber web, a surface fusion part is formed by heat-sealing the fiber webs. The hook material is bonded to the surface fusion part , and a plurality of the surface fusion parts are intermittently arranged in the tape tension direction and the direction perpendicular to the tape tension direction. the hook material, the surface is bonded to the fused portion, and said surface fusion part of the non-forming fastening tape that is adhered to the portion between the surface fusion part.

[ 4 ] A sheet laminating step for obtaining a long sheet laminate by laminating and adhering a band-like long hook material along a longitudinal direction to a part of the surface of the belt-like long base sheet, and the long A fastening tape manufacturing method including a fastening tape separating step of obtaining a plurality of fastening tapes by separating a length sheet laminate with a predetermined width, and prior to the sheet lamination step, the long base material Corresponding to the adhesion part of the long hook material on the surface of the sheet , the micro unevenness of the fiber web on the surface of the long base sheet and the unevenness formed by the heat embossing treatment applied as the surface treatment of the fiber web A fastening tape that forms a surface fusion part in which the fiber webs are heat-sealed so that at least the above-mentioned fiber webs are heat-bonded, and that the long hook material is overlapped and adhered to the surface fusion part in the sheet lamination step Manufacturing of A method, said surface fusion part is narrower than the fastening tape of the hook material to the tape pulling direction, the hook member is pulling the tape of said surface fusion part and the surface fused parts The hook material is bonded to non-formation portions of the surface fusion portion located on both sides in the direction, or the surface fusion portions are stripes arranged intermittently in a direction perpendicular to the tape tension direction, Is adhered to the surface fusion part and is adhered to the non-formation part of the surface fusion part between the surface fusion parts, or the surface fusion part is perpendicular to the tape tension direction and the tape tension direction. A plurality of the long hook members are bonded to the surface fusion portion and bonded to a non-formation portion of the surface fusion portion between the surface fusion portions. , A manufacturing method of fastening tape .

[ 5 ] A tape-type disposable diaper provided with the fastening tape according to any one of [1] to [ 3 ].

  According to the present invention, on the surface of the base material, a surface fusion part is formed by heat-sealing the fiber webs on the surface corresponding to the adhesion part of the hook material, and the hook material adheres to the surface fusion part. Is done. For this reason, not only the surface unevenness of the base material surface at the bonded portion of the hook material is substantially reduced by the surface fusion part, but also the minute unevenness due to the fiber web at the convex part is substantially reduced. It is possible to sufficiently secure an effective bonding area between the base material and the hook material and increase the adhesive strength between the base material and the hook material.

It is a typical enlarged view which shows one Embodiment of the tape-type diaper using the fastening tape of this invention, and is a figure which expands and shows the fastening tape part of the tape-type diaper shown in FIG. It is the typical enlarged view which expanded further the site | part to which the hook material of the fastening tape shown in FIG. 1 was attached. It is a schematic sectional drawing which shows the cross section which cut | disconnected the fastening tape shown in FIG. 2 along the A-A 'line. It is the typical enlarged view to which the site | part to which the hook material of the other fastening tape of this invention was attached was expanded. It is a schematic sectional drawing which shows the cross section which cut | disconnected the fastening tape shown in FIG. 4 along the B-B 'line. It is a schematic sectional drawing which shows the cross section which cut | disconnected the fastening tape shown in FIG. 4 along the C-C 'line. It is the typical enlarged view to which the site | part to which the hook material of the other fastening tape of this invention was attached was expanded. It is a schematic sectional drawing which shows the cross section which cut | disconnected the fastening tape shown in FIG. 7 along the D-D 'line. It is the typical enlarged view to which the site | part to which the hook material of the other fastening tape of this invention was attached was expanded. It is a schematic sectional drawing which shows the cross section which cut | disconnected the fastening tape shown in FIG. 9 along the E-E 'line. It is explanatory drawing which shows typically the structure of one Embodiment of the fastening tape manufacturing apparatus of this invention. It is a partial schematic perspective view which expands and shows the part shown to X of the fastening tape manufacturing apparatus shown in FIG. It is a top view explaining the fastening tape cutting-off process in one Embodiment of the manufacturing method of the fastening tape of this invention. It is a partially cutaway sectional view showing one embodiment of a tape type diaper using the fastening tape of the present invention, and is a figure showing the state where a tape type diaper was developed and seen from the top sheet side. It is a perspective view which shows the state which uses the tape-type diaper using the fastening tape of this invention. It is a partially cutaway sectional view showing one embodiment of the conventional tape type diaper, and is a figure showing the state which developed the conventional tape type diaper and was seen from the top sheet side.

  Hereinafter, the best mode for carrying out the fastening tape, the method for producing the fastening tape, and the tape-type disposable diaper of the present invention will be specifically described. However, the present invention broadly includes fastening tapes and the like having the invention-specific matters, and is not limited to the following embodiments.

  In the present specification, the “hook material” is a convex member of a mechanical fastener (also referred to as a planar fastener) and can be fixed by mechanical coupling with a loop material that is a concave material. It is. This hook material is attached to the surface of the base material. As the “hook material”, for example, a material having a large number of protrusions (such as a bowl shape, a mushroom shape, a bowl shape) formed on the surface thereof is used.

  “Base material” means that a hook material is attached near one end portion, and the other end portion is fixed to the left and right side edges of the back body of the disposable diaper, for example. It functions as.

"Tape-type diaper" refers to the absorber 22, the top sheet 18 made of at least a part of a liquid-permeable material, and the back sheet 20 made of a liquid-impermeable material, like the tape-type diaper 1 shown in FIG. And the front body 2, the crotch 4, and the back body 6. The back body 6 is disposed so as to extend from the left and right side edges 6 a and 6 b of the back body 6. The disposable diaper further provided with the fastening tape 10 for fixing to the stage 2 shall be meant.

  In addition, in this specification, “front body” means a part that covers the abdomen (front of the body) of the wearer when a diaper is worn on the wearer, and “inseam” means that the wearer wears a diaper. When the wearer wears a diaper, the part covering the inseam of the wearer means the part covering the back side (back of the body) of the wearer.

[1] Fastening tape:
FIG. 14 is a partially cutaway cross-sectional view showing an embodiment of a tape-type diaper using the fastening tape of the present invention, in which the tape-type diaper is developed and viewed from the top sheet side. is there. FIG. 1 is a schematic enlarged view showing an embodiment of a tape-type diaper using the fastening tape of the present invention, and is an enlarged view showing a fastening tape portion of the tape-type diaper shown in FIG. . FIG. 2 is a schematic enlarged view in which a portion where the hook material of the fastening tape shown in FIG. 1 is attached is further enlarged. FIG. 3 is a schematic cross-sectional view showing a cross section of the fastening tape shown in FIG. 2 cut along the line AA ′. FIG. 4 is a schematic enlarged view in which a portion to which a hook material of another fastening tape of the present invention is attached is enlarged. FIG. 5 is a schematic cross-sectional view showing a cross section of the fastening tape shown in FIG. 4 cut along the line BB ′. FIG. 6 is a schematic cross-sectional view showing a cross section of the fastening tape shown in FIG. 4 cut along the line CC ′. FIG. 7 is a schematic enlarged view in which a portion to which a hook material of another fastening tape of the present invention is attached is enlarged. FIG. 8 is a schematic cross-sectional view showing a cross section of the fastening tape shown in FIG. 7 cut along the line DD ′. FIG. 9 is a schematic enlarged view in which a portion to which a hook material of another fastening tape of the present invention is attached is enlarged. FIG. 10 is a schematic cross-sectional view showing a cross section of the fastening tape shown in FIG. 9 cut along the line EE ′.

  The fastening tape of the present invention is a fastening tape used for fixing the front body and the back body of a diaper, like a fastening tape 10 shown in FIGS. A material 48 and a hook material 44 of a mechanical fastener bonded to a part of the surface of the base material 48, and the surface of the base material 48 has a fiber web on the surface corresponding to the bonding portion of the hook material 44. A surface fusion part 50 is formed by heat-sealing each other, and a hook material 44 is bonded to the surface fusion part 50. Moreover, as shown in FIG. 2, the recessed part 80 may be formed arbitrarily.

  The “base material” functions as a main body of the fastening tape 10 by attaching a hook material and fixing the fastening tape 10 to the left and right side edges 6 a and 6 b of the back body 6.

  As the material of the base material, sheet materials made of various nonwoven fabrics such as spunbond, SMS (spunbond / meltblown / spunbond), SMMS (spunbond / meltblown / meltblown / spunbond), card embossing, resin bond, etc. are used. be able to. In consideration of the strength in the tape tension direction, it is preferable to use a sheet material made of a spunbonded nonwoven fabric.

  Examples of the constituent material of the nonwoven fabric include synthetic fibers made of polyolefin (polyethylene, polypropylene, etc.), polyester, aliphatic polyamide (so-called nylon), and other thermoplastic resins. In this case, the synthetic fiber may be a single fiber or a composite fiber having a core-sheath structure or the like. In general, when a single fiber is used, polyolefin is often used, but it is preferable to use polyester in consideration of the tensile strength.

  If a non-woven fabric or a loop material (back surface side loop material) that is easily engaged with the hook material is disposed on the surface opposite to the surface on which the hook material is disposed, the base material is disposed on the back surface side of one fastening tape 10. The other fastening tape 10 can be fastened.

  When the fastening tape of the present invention is used for fixing, for example, the front body and the back body of a diaper to the bonding portion between the base material and the hook material, the fastening tape base of the hook material is used. Peeling from the material is difficult to occur, and the wearing feeling of the diaper can be improved.

  In the present invention, the “surface fusion part” refers to a state where at least the fiber webs on the surface of the nonwoven fabric are thermally fused. Moreover, the surface fusion | bond part may be in the state which heat-bonds the fiber webs of the nonwoven fabric surface, and the fiber web maintains the fiber shape in the inner layer. That is, in a general nonwoven fabric, by heat embossing, a concave portion obtained by fusing the fiber webs on the front and back surfaces and a convex portion that is raised without fusing the fiber webs are formed, but the subsequent post-treatment Thus, a surface fusion part in which the fiber webs are heat-sealed to the surface of the convex portion and the fiber web maintains the fiber shape may be formed in the inner layer.

  Moreover, in this invention, a surface melt | fusion part can be formed by thermocompression bonding or ultrasonic welding. Such methods are widely known and equipment for these methods is readily available. Furthermore, according to these methods, it is possible to form a surface fusion part having sufficient physical properties economically and quickly.

  Further, in the present invention, the surface fusion portion is narrower than the hook material in the tape tension direction, and the hook material is the surface fusion portion located on both sides of the surface fusion portion and the surface fusion portion in the tape tension direction. It is preferable to be adhered to the non-formed part of the part. In the fastening tape 10 shown in FIG. 3, the surface fusion part 50 of the base material 48 is formed inside the hook material 44 by W at both ends of the fastening tape 10 in the tape tension direction.

  In the configuration as described above, the hook material 44 is extended to the outer region than the surface fusion part 50 (the surface fusion part 50 of the base material 48 is applied to the hook material 44 by the tape tension of the fastening tape 10). Therefore, the hook material 44 acts as a reinforcing material in the tape tension direction of the fastening tape of the base material 48 and can prevent the tensile strength of the base material 48 from being lowered. W is preferably set to 1 to 10 mm. If W is less than 1 mm, the hook material 44 tends not to function effectively as a reinforcing material in the tape tension direction. On the other hand, when W is 10 mm or more, the effective bonding area of the hook material 44 becomes small, and the adhesive strength of the hook material 44 tends not to be improved effectively.

  In the present invention, the surface fusion part is a striped pattern intermittently arranged in a direction orthogonal to the tape tension direction, and the hook material is bonded to the surface fusion part, and between the surface fusion parts. It is preferably adhered to the non-formed part of the surface fusion part. In the fastening tape 10 shown in FIGS. 4 and 5, the surface fusion part 50 of the base material 48 is formed in a stripe shape along the tape tension direction of the fastening tape 10. By forming in this way, it is possible to achieve both the tensile strength of the base material 48 in the tape tension direction and the strong adhesion between the base material 48 and the hook material 44. That is, the portion of the base material 48 where the surface fused portion 50 is formed has a feature that the tensile strength is low while the adhesive strength with the hook material is high with respect to the non-formed portion of the surface fused portion. Therefore, with the above configuration, the base material 48 is secured with strong adhesion between the base material 48 and the hook material 44 at a portion where the striped surface fusion portion 50 is formed along the tape tension direction of the base material 48. The tensile strength in the tape tension direction can be ensured by the non-formation portion of the striped surface fusion portion along the tape tension direction.

  In another embodiment of the present invention, a plurality of the surface fusion portions are intermittently arranged in a tape tension direction and a direction orthogonal to the tape tension direction, and the hook material is formed of the surface fusion portion. And may be adhered to a non-formation portion of the surface fusion portion between the surface fusion portions. 7, 8, 9, and 10, the surface fusion portion 50 of the base material 48 is intermittent in the tape tension direction of the fastening tape 10 and the direction perpendicular to the tape tension direction. Is arranged in multiple. By forming in this way, it is possible to achieve both the tensile strength of the base material 48 in the tape tension direction and the strong adhesion between the base material 48 and the hook material 44. That is, the portion of the base material 48 where the surface fused portion 50 is formed has a feature that the tensile strength is low while the adhesive strength with the hook material is high with respect to the non-formed portion of the surface fused portion. Therefore, with the above configuration, the tape is formed by the non-formation portion of the surface fusion portion while ensuring the strong adhesion between the base material 48 and the hook material 44 at the portion where the surface fusion portion 50 arranged intermittently is formed. The tensile strength in the tensile direction can be ensured. In this case, the surface fusion part 50 can be made narrower than the hook member 44 as in the fastening tape 10 shown in FIGS. 7 and 8, whereas the fastening shown in FIGS. Like the tape 10, the surface fusion bonding part 50 can be made wider than the hook member 44.

  In the present invention, as a material of the hook material, for example, synthetic fibers made of polyolefin (polyethylene, polypropylene, etc.), polyester, aliphatic polyamide (so-called nylon), and other thermoplastic resins can be used.

[2] Manufacturing method of fastening tape:
An embodiment of a method for producing a fastening tape of the present invention will be described. The manufacturing method of the fastening tape of the present invention is a method of laminating a long sheet laminate by laminating and bonding a band-shaped long hook material along a longitudinal direction to a part of the surface of a band-shaped long base sheet. A fastening tape manufacturing method comprising: a sheet laminating step to obtain; and a fastening tape separating step for obtaining a plurality of fastening tapes by separating a long sheet laminated body with a predetermined width, prior to the sheet laminating step A surface fusion part is formed on the surface of the long base material sheet by heat-sealing the fiber webs on the surface corresponding to the adhesion part of the long hook material. A shank hook material is laminated and bonded.

  Here, when the long base material and the long hook material are overlapped with the longitudinal direction aligned, the long hook material and the long base material sheet are kept parallel to each other so that the long base material and the long base material sheet do not shift. This refers to overlapping, and includes cases in which both ends in the width direction are aligned and overlapped, and cases in which both width direction center lines are aligned.

  By comprising in this way, a fastening tape can be manufactured simply and at low cost.

  Hereinafter, the example which manufactures a fastening tape using the fastening tape manufacturing apparatus 90 shown in FIG. 11 and FIG. 12 is demonstrated more concretely for every process. Here, FIG. 11 is explanatory drawing which shows typically the structure of the fastening tape manufacturing apparatus used for the manufacturing method of the fastening tape of this invention. 12 is a partially schematic perspective view showing, in an enlarged manner, a portion indicated by X in the fastening tape manufacturing apparatus shown in FIG.

[2-1] Surface fused part forming step:
When producing the fastening tape of the present invention, first, as shown in FIG. 11, the long base sheet unwound from the long base sheet supply roll 118 between the heating rolls 101 that heated the roll. By passing 78, the surface fusion | fusion part 50 which heat-fused the fiber webs of the surface corresponding to the adhesion | attachment site | part of the long hook material 74 is formed in the elongate base material sheet 78. FIG. The heating rolls 101 may be plain rolls, may be embossing rolls, or a combination of embossing rolls and plain rolls, and may be appropriately selected according to the shape of the surface fusion part 50.

  The surface fusion | bond part 50 should just be formed in the surface side of the elongate base material sheet 78 to which the elongate hook material 74 is adhere | attached, and the elongate base on the opposite side to the adhesion surface of the elongate hook material 74 is sufficient. You may make it form also in the back surface side of the material sheet 78. FIG.

  When forming the surface fusion | bond part 50 only in the surface side of the elongate base material sheet 78, the heating temperature of the heating roll 101 by the side which contact | connects the surface of the elongate base material sheet 78 to which the elongate hook material 74 is adhere | attached. Is set higher than the heating temperature of the heating roll 101 on the side in contact with the back surface of the long base sheet 78, the desired long base sheet 78 can be obtained. In this case, in the long base sheet 78, the fiber web is gradually fused from the back surface side to the front surface side, and the fiber shape is left on the back surface side.

  Moreover, when forming the surface melt | fusion part 50 in the front and back both surfaces of the elongate base material sheet 78, the heating of the heating roll 101 by the side which contact | connects the surface of the elongate base material sheet 78 to which the elongate hook material 74 is adhere | attached. The target long base sheet 78 can be obtained by setting the temperature and the heating temperature of the heating roll 101 on the side in contact with the back surface of the long base sheet 78 to be the same. In this case, in the long base sheet 78, the fusion of the fiber web proceeds stepwise from the base medium layer to the front and back surfaces, and the base medium layer is in a state in which the fiber shape remains.

[2-2] Sheet lamination step:
Next, as shown in FIG. 11, along the longitudinal direction of the long base sheet 78, the long hook material supply roll 114 is formed on one surface of the long base sheet 78 on which the surface fusion part 50 is formed. A long sheet laminated body 71 is obtained by placing the belt-like long hook material 74 unwound from the sheet.

When the long sheet laminate 71 is obtained, it is preferable that the long base sheet 78 and the long hook material 74 are bonded or temporarily bonded with an adhesive 92 in advance as shown in FIG. In the fastening tape manufacturing apparatus 90 shown in FIG. 11, the adhesive 92 is applied to the back surface of the long hook material 74 by the adhesive applying means 94, and the back surface on which the adhesive 92 is applied is the long base sheet 78. The long sheet laminate 71 is formed so as to overlap with each other. The amount of adhesive applied to the long hook material 74 can be determined as appropriate based on the material of the long hook material and the type of adhesive. However, the coating amount of the adhesive is preferably a hook material per unit area ^{10g / m 2 ~50g / m 2} , preferably between ^{15g / m 2 ~35g / m 2} . Sufficient adhesive strength can be obtained by using such a coating amount. In addition, as the long hook material 74, you may employ | adopt what apply | coated the adhesive agent previously.

[2-3] Adhesion process:
Next, the long sheet laminate 71 is pressed by the joining roll 106.

[2-4] Other steps (recess forming step)
Next, as shown in FIGS. 11 and 12, both side edge portions 74 a of the long hook member 74 of the obtained long sheet laminate 71 are moved from the surface side of the long hook member 74 to the long base sheet 78. The concave portion 80 may be formed by pressing toward the side with a predetermined width (a concave portion forming step).

  The above-described concave portion 80 can be formed by using, for example, a pattern roll 98 having a convex surface 99 corresponding to the shape of the concave portion formed on the pressing surface as shown in FIG. In addition, as shown in FIG. 11 and FIG. 12, in a recessed part formation process, as a roll which presses the back surface side of the elongate base material sheet 78, the plain roll 100 with a flat contact surface with the elongate base material sheet 78 is used. It is preferable to use it. In the fastening tape manufacturing apparatus 90 shown in FIG. 11, the pressing means 95 is configured by the pattern roll 98 and the plain roll 100. By pressing in this way, the adhesive strength of the hook material can be effectively increased.

(Fastening tape separation process)
Next, a plurality of fastening tapes are obtained by separating the long sheet laminate formed with the recesses with a predetermined width (fastening tape separating step). According to the method as described above, a large number of fastening tapes can be produced simply and efficiently. The tape manufacturing apparatus 90 shown in FIG. 11 cuts the long sheet laminated body 71 so as to draw an S-shaped curve along the longitudinal direction of the long sheet laminated body 71 after forming the recess 80 by the pressing means 95. Sheet cutting means 132, and sheet cutting means 138 that cuts between the valleys of the side edges formed in an S-shaped curve and the side edges formed in a straight line.

  For example, as shown in FIG. 12, this fastening tape separating step cuts the long sheet laminate 71 so that the cutting locus draws an S-curve along the longitudinal direction of the long sheet laminate 71. Thus, two fastening tape intermediate bodies 72 are obtained, and between the valley portions of the side edges formed in the S-curve shape of the obtained fastening tape intermediate bodies 72 and the side edges formed in a straight line. A method of obtaining a plurality of fastening tapes 10 can be mentioned by cutting off the.

  In addition, as a cutting method of this sheet | seat, the cutting | disconnection locus | trajectory can mention the cutting method in S shape so that the long locus | trajectory material 74 may straddle the width direction. By configuring in this manner, the hook members having the concave portions 80 on the mountain side formed in the S-curve shape of each fastening tape intermediate body 72 are respectively arranged.

  The cutting of the long sheet laminate 71 is not particularly limited as long as it is cut into a continuous shape. Usually, as shown in FIG. 12, the locus is a continuous S-shape, that is, a periodic wave shape. It is preferable to cut | disconnect so that it may become. This makes it possible to obtain a large number of fastening tapes at a time.

  When each fastening tape intermediate is obtained in this manner, a side edge valley formed in an S-curve shape and a side edge formed linearly in each obtained fastening tape intermediate A plurality of fastening tapes are obtained by separating the gaps. According to the method as described above, a large number of fastening tapes can be produced simply and efficiently.

  Specifically, as shown in FIG. 13, the gap between the side edge trough portion 102 formed in the S-curve shape of each fastening tape intermediate body 72 and the side edge 104 formed in a straight line is separated. Thus, a plurality of fastening tapes 70 are obtained. In the example shown in the figure, between the valleys 102 of the side edges formed in the S-curve shape of each fastening tape intermediate body 72 and the side edges 104 formed in a straight line, in the direction orthogonal to the side edges 104. A plurality of fastening tapes 10 are obtained by separating them.

  A plurality of fastening tapes can be obtained by separating the fastening tape intermediate in this way. However, it is preferable to temporarily fix the hook material and the fastening tape prior to the “separation”. This is because, when the fastening tape having a free end is in a floating state, there is a possibility that the free end may cause problems such as being caught in a manufacturing facility when continuous production is performed.

  For example, the fastening tape intermediate is folded back so that the hook material is on the inside between the portion where the hook material is attached and the side edge formed in a straight line, and the hook material is placed on the surface of the long base sheet. After temporarily fixing, it is preferable to separate between the valley portion of the side edge formed in the S-curve shape and the side edge formed in the linear shape. Folding work for multiple fastening tapes at once and continuously by temporarily fastening between the valleys of the side edges formed in an S-shaped curve and the side edges formed in a straight line Compared to the case where the folding operation is performed after “separation”, the folding operation can be performed stably and efficiently.

  In the manufacturing method shown in FIG. 13, the fastening tape intermediate 72 is folded back so that the hook material 84 is on the inner side between the portion where the hook material is attached and the side edge 104 formed linearly. 84 is temporarily fixed to the surface of the long base material sheet 78 (temporary fixing portion 86), and then, between the valley portion 102 of the side edge formed in the S-curve shape and the side edge 104 formed in the linear shape. This is an example where

  The fastening tape manufacturing apparatus 90 shown in FIG. 11 includes a cutting means 132 such as a cutter for cutting the long sheet laminated body 71 into an S shape, and a side edge 104 formed linearly with a portion provided with a hook material 84. , A folding means 134 for folding the hook material 84 inside, and a temporary fastening means 136 for temporarily fastening the folded hook material 84 to the surface of the long base sheet 78. The temporary fixing means 136 includes a pair of temporary fixing rolls 136a and 136b formed with at least one unevenness for pressing a part of the folded hook member 84 against the surface of the long base sheet 78. Have.

  Further, the fastening tape manufacturing apparatus 90 shown in FIG. 11 has a separating means 138 such as a cutter for separating the valley portion of the side edge formed in the S-curve shape and the side edge formed in the straight shape. doing.

[3] Tape-type diapers:
The tape-type diaper of the present invention includes the above-described fastening tape of the present invention as the fastening tape. More specifically, the absorber is disposed so as to cover the surface of the absorber, and is disposed so as to cover at least a part of the liquid-permeable material and the back surface of the absorber. A back sheet made of a permeable material, and is composed of each part of the front body, the crotch part and the back body, and is arranged so as to extend from the left and right side edges of the back body, the front body and the back body Is a tape-type diaper that is the above-described fastening tape of the present invention.

[3-1] Fastening tape:
If the tape type diaper of this invention is provided with the fastening tape of this invention already demonstrated as the fastening tape, there will be no restriction | limiting about another structure. However, it is preferable that two fastening tapes of the present invention are arranged on each of the left and right side edges of the back body.

  For example, in the tape-type diaper 1 shown in FIGS. 14 and 15, two fastening tapes 10 of the present invention are disposed on each of the left and right side edges 6 a and 6 b of the back body 6. In this way, the tape type diaper in which two fastening tapes are arranged is compared with the tape type diaper in which one piece is arranged at a time, and the wearer's body shape, specifically, the waist circumference and leg circumference dimensions. It is excellent in that the tape position and tightening condition can be adjusted according to the situation.

  The tape-type diaper of the present invention is preferably one in which the fastening tape of the present invention is bonded to the diaper main body by fusion. By adhering by fusion, it is possible to achieve stronger adhesion as compared with adhesion using an adhesive, and effectively prevent the fastening tape from dropping from the diaper body. For example, the tape-type diaper 1 shown in FIG. 14 is ultrasonically bonded to the side edges 6a and 6b of the back body 6 of the diaper main body, more specifically to both side edges of the side flap 8 constituted by the side seat 18b. It is the example which adhere | attached the fastening tape 10 of this invention.

[3-2] Absorber:
The absorber is a member for absorbing and holding the wearer's urine. The absorber is made of an absorbent material because it needs to absorb and retain the wearer's urine and body fluid.

  Examples of the absorbent material constituting the absorber include conventionally known absorbent materials usually used for disposable diapers and other absorbent articles, such as fluff pulp, super absorbent polymer (Super Absorbent Polymer; hereinafter referred to as “SAP”). And a hydrophilic sheet. It is possible to use wood pulp or non-wood pulp defibrated as fluff pulp, sodium polyacrylate as SAP, tissue, absorbent paper, hydrophilized nonwoven fabric as hydrophilic sheet preferable.

  These absorbent materials are usually used as a single-layer or multi-layer mat. Under the present circumstances, 1 type may be used independently among the said absorptive materials, and 2 or more types may be used together. Especially, what used together about 10-500 mass parts SAP with respect to 100 mass parts of fluff pulp is preferable. At this time, the SAP may be uniformly mixed in each mat of fluff pulp, or may be arranged in layers between the layers of the multilayer fluff pulp.

  It is preferable that the absorber is interposed at least in part between the top sheet and the back sheet. Usually, the absorber is interposed between the top sheet and the back sheet by being sandwiched between the top sheet and the back sheet and sealing the peripheral edge thereof. Therefore, the flap part in which the absorber is not interposed is formed between the top sheet and the back sheet at the peripheral part of the absorber. The absorber is interposed in at least a part between the top sheet and the back sheet. More specifically, the absorbent body may be interposed at least in the crotch region, and the absorbent body may extend to the front body and the back body.

  It is preferable that the absorber is entirely wrapped with a hydrophilic sheet. Such a configuration has an advantage that SAP can be prevented from leaking from the absorber and shape stability can be imparted to the absorber.

  Although there is no restriction | limiting in particular about the shape of an absorber, The shape used in the conventional disposable diaper and other absorbent articles, for example, a rectangular shape, an hourglass type, a gourd type, a T shape etc. can be mentioned. The tape-type diaper 1 shown in FIG. 14 is an example in which an hourglass-type absorber is used as the absorber 22.

  In addition, a sheet (second sheet) for diffusing liquid such as urine and body fluid may be incidentally disposed on the surface side of the absorber (for example, between the absorber and the top sheet). . When this second sheet is attached, due to the wearer's posture, etc., even when the space on the back side of the top sheet is not sufficiently formed, the absorption rate of urine, body fluid, etc. is difficult to decrease, and the absorption rate decreases. It is possible to prevent leakage of urine and body fluids.

  Examples of the material constituting the second sheet include hydrophilic and liquid-permeable materials such as woven fabric, non-woven fabric, porous plastic, and fluff pulp. Examples of these constituent materials include polypropylene, polyethylene, polyester, rayon, pulp, and composite fibers thereof. As the pulp, crimped fibers such as curly cellulose fibers can be suitably used.

[3-3] Top sheet:
A top sheet is a sheet | seat arrange | positioned so that the surface (surface located in a wearer's skin side at the time of mounting | wearing of a diaper) may be coat | covered. At least a part (all or a part) of the top sheet is made of a liquid-permeable material because the absorber disposed on the back surface side needs to absorb the wearer's urine. Usually, at least near the surface of the absorber, it is made of a liquid-permeable material that can permeate the wearer's urine and body fluid. As long as at least a part is made of the liquid permeable material, the entire top sheet is not necessarily made of the liquid permeable material.

  Examples of the liquid permeable material constituting the top sheet include a woven fabric, a nonwoven fabric, and a porous film. Among these, it is preferable to use a non-woven fabric made of a thermoplastic resin such as polypropylene, polyethylene, polyester, or nylon and subjected to a hydrophilic treatment. There is no restriction | limiting in particular also about the kind of nonwoven fabric, The conventionally well-known nonwoven fabric manufactured by various manufacturing methods, such as air through (card hot air), card | curd embossing, and a spun bond, can be used suitably.

  The top sheet may be composed of a single sheet material, but may be composed of a plurality of sheet materials. For example, the form which comprises the top sheet arrange | positioned at the surface part of an absorber and the top sheet arrange | positioned in the part of a side flap by a different sheet | seat is also utilized frequently. In the tape type diaper 1 shown in FIG. 14, a top sheet 18 (center sheet 18a) made of a liquid permeable material is disposed at the center of the diaper, and the side flap 8 portion of the diaper is resistant to liquid permeation. It is the example which has arrange | positioned the top sheet 18 (side sheet 18b) which consists of ventilation water-repellent material which shows.

[3-4] Backsheet:
A backsheet is a sheet | seat arrange | positioned so that the back surface (surface located in a wearer's clothing side at the time of mounting | wearing of a diaper) may be coat | covered. The back sheet is made of a liquid-impermeable material because it is necessary to prevent the wearer's urine from leaking outside the diaper.

  Although there is no restriction | limiting in particular about the arrangement | positioning method, For example, the structure which arrange | positions the back seat | sheet 20 so that it may correspond with the external shape of a diaper like the tape-type diaper 1 shown in FIG. However, it is not always necessary to adopt such a configuration. From the viewpoint of preventing leakage of urine absorbed by the absorber, a back sheet made of a liquid-impermeable material is disposed at least in a portion where the absorber is present. May be.

  Examples of the liquid-impermeable material constituting the backsheet include a liquid-impermeable film made of a resin such as polyethylene. Among these, a microporous polyethylene film is preferably used. This microporous polyethylene film has a large number of fine pores of 0.1 to several μm, and is liquid impervious but has moisture permeability, so that the inside of the diaper can be prevented from being steamed There is.

  Note that a sheet material (cover sheet) may be bonded to the outer surface of the back sheet. This cover sheet is used to reinforce the back sheet and improve the feel (tactile feeling) of the back sheet.

  Examples of the material constituting the cover sheet include woven fabric and non-woven fabric. Especially, it is preferable to use the dry nonwoven fabric and wet nonwoven fabric which consist of thermoplastic resins, such as polyethylene, a polypropylene, and polyester.

[3-5] Solid gather:
In order to prevent the side leakage of the urine excreted by the wearer, a three-dimensional gather may be provided. The three-dimensional gather is a member for preventing side leakage of the urine excreted by the wearer, and is a leak-proof wall configured to stand up three-dimensionally. By forming such a three-dimensional gather, the three-dimensional gather serves as a breakwater, and leakage from a leg-diameter opening or the like (so-called “lateral leakage”) can be effectively prevented.

  The structure of a three-dimensional gather can employ | adopt the structure used for the conventional disposable diaper and other absorbent articles. For example, a stretchable material (a three-dimensional gathered stretchable material) disposed on a part of the water-repellent sheet material and a sheet (gather) formed on the sheet material by the three-dimensional gathered stretchable material can be suitably used.

  The three-dimensional gather may be formed of a sheet material that is completely different from the top sheet and the back sheet, but may be formed by folding back a top sheet such as a center sheet or a side sheet. For example, the tape-type diaper 1 shown in FIG. 14 is an example in which the three-dimensional gather 26 (26a, 26b) is formed by folding back the side sheet 18b. However, the three-dimensional gather may be formed by folding back a member other than the top sheet such as a second sheet.

  In order to prevent leakage from the crotch part, this three-dimensional gather may be formed at least in the crotch part, but may be formed in the front body or the back body. For example, the tape-type diaper 1 shown in FIG. 14 has a pair of three-dimensional gathers 26 (26a, 26b) formed continuously from the crotch part 4 to both the front body 2 and the back body 6 along the longitudinal direction of the diaper. An example is shown. Further, at least one pair of solid gathers must be formed, but two or more pairs may be formed. A three-dimensional gather expansion / contraction material 36 (36a, 36b) is disposed in the three-dimensional gather 26 (26a, 26b).

  The three-dimensional gather may be an inward gather that tilts toward the inside of the diaper, or may be an outward gather that tilts toward the outside of the diaper. Moreover, it can also be set as the three-dimensional gathers (C fold gather, Z fold gather, etc.) which formed the bending part and the folding | turning part in a part of height direction. For example, the tape-type diaper 1 shown in FIG. 14 is an example in which the three-dimensional gather 26 (26a, 26b) is inwardly gathered.

[3-6] Various elastic materials:
In a tape-type diaper, it is preferable to arrange an elastic material around the legs and arrange an elastic material around the waist.

  The leg circumference elastic material is an elastic material arranged along the leg circumference opening. By arranging the leg-stretchable material, a gather (leg gather) rich in stretchability can be formed in the leg-surrounding opening. Therefore, it is difficult to form a gap around the leg, and urine leakage from the opening around the leg can be effectively prevented. Further, when the leg stretchable material is disposed, the leg stretchable material contracts on both sides of the absorbent body when changing the diaper, so that the vicinity of the crotch portion is deformed into a bowl shape and a recess is formed. For this reason, urine and body fluid accumulate in the concave portion, and the diaper can be easily replaced without spilling urine and body fluid.

  For example, the tape-type diaper 1 shown in FIG. 14 is an example in which leg gathers are formed by linearly arranging two leg-around elastic members 40 along the longitudinal direction of the diaper. The leg-around elastic member 40 is made of rubber thread. However, the leg-surrounding elastic members are not necessarily arranged linearly, and may be arranged in a curved line along the curve of the leg-periphery opening, for example.

  For example, the leg elastic member 40 is preferably formed on the outer side of the upright line 46 of the three-dimensional gather 26 as in the tape-type diaper 1 shown in FIG. With such a configuration, it is possible to improve the wearing feeling and wearing feeling of the crotch part while ensuring a sufficient leakage preventing effect of the three-dimensional gather.

  Note that the tape-type diaper 1 shown in FIG. 14 shows an example in which the shape, arrangement position, number of arrangements, etc. of the leg elastic members 40 are bilaterally symmetric, but those that are bilaterally asymmetric are also included in the scope of the present invention. It is. And in the tape-type diaper 1 shown in FIG. 14, although the example in which the leg circumference elastic material 40 was arrange | positioned two on one side was shown, only one may be arrange | positioned, or three or more may be arrange | positioned. Good. Further, when using a plurality of leg-surrounding stretchable materials, the thickness, stretch rate, etc. may be set as appropriate according to the purpose, and it is not necessary to use the same for all.

  The waist elastic material is an elastic material arranged along the waist opening. By arranging the elastic material around the waist, a gather (waist gather) rich in elasticity can be formed in the waist opening. This waist gather makes it difficult for gaps to be formed around the waist, preventing urine leakage from around the waist, and improving the fit of the diaper to the wearer, thereby preventing the diaper from falling down.

  In addition, the tape-type diaper 1 shown in FIG. 14 is an example which has arrange | positioned the strip | belt-shaped waist circumference elastic material 42 along the edge of the back body 6 of a diaper. The belt-like waist elastic member 42 is made of an elastic foam such as urethane foam. In the illustrated example, the waist elastic member 42 is disposed only on the back body (back side), but the waist elastic material may be disposed on the front body (abdominal side).

  For example, when two fastening tapes 10 are arranged on each of the left and right side edges 6a and 6b of the back body 6 as in the tape-type diaper 1 shown in FIG. It is preferable that the elastic material 42 around the waist is attached along the edge and the elastic material 40 around the leg is attached at least along both side edges of the crotch portion 4.

  With the configuration as described above, the fastening tape 10 disposed on the upper side of the two fastening tapes 10 and the waist elastic member 42 are integrated to improve the fit of the diaper around the wearer's waist. be able to. Moreover, the fastening tape 10 arrange | positioned below among the two fastening tapes 10 and the leg periphery expansion-contraction material 40 can be united, and the fit property of the diaper around a wearer's leg can be improved. The effect is that the fastening tape 10 arranged on the upper side is fastened in substantially the same direction as the edge of the front body 2, and the fastening tape 10 arranged on the lower side is attached to the edge side (upper diaper) of the front body 2. It becomes particularly large when it is stopped so as to be pulled up.

  For these stretchable materials, after considering the degree of shrinkage of gathers, etc., the constituent material, the elongation rate of the material, the stretched state at the time of fixing, etc. may be determined.

  As an elastic material, the elastic material which has been used with the conventional disposable diaper can be used conveniently. Specific examples include elastic rubber, elastic film, elastic foam (urethane foam, etc.), etc., as well as thread rubber and flat rubber made of elastic materials such as natural rubber and synthetic rubber (urethane rubber, etc.). .

  The stretchable material is preferably fixed in the stretched state in order to exert a sufficient stretch force. For example, when the elastic material is natural rubber or synthetic rubber, it is preferably fixed in a stretched state of 110 to 400%, and more preferably fixed in a stretched state of 200 to 300%. By fixing in the extended state in such a range, a sufficient stretching force can be applied.

  The stretchable material as described above is fixed to other constituent members of the diaper by an adhesive or other means. The fixing method may be, for example, adhesion using a hot melt adhesive or other highly fluid adhesive, or may be welding by heat such as heat sealing or ultrasonic waves.

[4] Tape type diaper manufacturing method:
Hereinafter, the manufacturing method of the tape type diaper of this invention is demonstrated in the example in the case of manufacturing the tape type diaper 1 shown in FIG. First, the absorbent body 22 and the leg elastic member 40 wrapped in a hydrophilic sheet are placed on the surface of a long sheet material (back sheet material) which is a material of the back sheet 20, and the top sheet is further placed on the surface. By placing a long sheet material (top sheet material) as 18 material, a laminate (diaper continuum) as an intermediate body of the diaper is obtained. At this time, as the top sheet material, two types of a top sheet material corresponding to the center sheet 18a and a top sheet material corresponding to the side sheet 18b are used. A three-dimensional gather 26 is formed by providing a folded portion on the sheet material corresponding to the side sheet 18b.

  In the diaper continuous body obtained as described above, a portion corresponding to the opening around the leg of the diaper is cut out in an arc shape and cut (R cut) to form an opening around the leg. Finally, the fastening tape 10 of the present invention is attached to the side edges 6a and 6b of the back body 6 of the diaper, and the continuous diaper is cut into individual diapers, whereby the tape-type diaper 1 is manufactured. At this time, it is preferable that the left and right side edge portions of the back body 6 and the end portion of the fastening tape 10 are bonded by fusion such as heat sealing.

  In addition to the method described above, a fastening tape is previously attached to the top sheet material, and on the surface of the back sheet material, the absorbent body wrapped in a hydrophilic sheet and the elastic material around the legs are placed, Furthermore, you may obtain a diaper continuous body by mounting the top sheet material in which the fastening tape was attached to the surface. The series of steps as described above can be continuously performed by mechanical means. For example, by adopting a method / apparatus such as continuously feeding a long sheet material from a roller, continuous production of a tape-type diaper becomes possible, which contributes to improvement of productivity.

  The fastening tape of the present invention can be suitably used as a fastening tape for fixing the front and back bodies of a diaper. Moreover, the tape type diaper of this invention can be utilized suitably as a diaper for adults, such as an elderly person and a disabled person for infants or the elderly who require nursing care.

DESCRIPTION OF SYMBOLS 1,150: Tape type diaper, 2: Front body, 4: Crotch part, 6: Back body, 6a, 6b: Side edge, 8: Side flap, 10, 110: Fastening tape, 18: Top sheet, 18a: Center sheet, 19: side sheet, 20: back sheet, 22: absorber, 26, 26a, 26b: solid gather, 36, 36a, 36b: solid gather stretchable material, 40: leg stretchable material, 42: waist stretchable Material: 44, 84: Hook material, 46: Standing wire, 48: Base material, 50: Surface fusion part, 54: Protrusion, 71: Long sheet laminate, 72: Fastening tape intermediate, 74: Long Hook material, 74a: edge portion, 78: long base sheet, 80: concave portion, 86: temporary fixing portion, 90: fastening tape manufacturing apparatus, 92: adhesive, 94: adhesive application means, 95: pressing means , 98: pattern roll, 99: Part: 100: plain roll, 101: heating roll, 102: trough, 104: side edge, 106: bonding roll, 114: long hook material supply roll, 118: long base sheet supply roll, 132, 138: Cutting means, 134: folding means, 136: temporary fixing means, 136a, 136b: rolls for temporary fixing, 144: hook material, 148: base material.

Claims (5)

A fastening tape used to fix the front and back of the diaper,
A base material made of a non-woven fabric, and a hook material of a mechanical fastener to be bonded to a part of the surface of the base material,
Corresponding to the adhesion part of the hook material on the surface of the base material, there are micro unevenness of the fiber web on the surface of the base material and unevenness formed by the heat embossing treatment applied as the surface treatment of the fiber web. A surface fusion part is formed by heat-sealing the fiber webs so as to reduce at least , and is a fastening tape in which the hook material is bonded to the surface fusion part .
The surface fusion part is narrower than the hook material in the tape tension direction, and the hook material is located on both sides of the surface fusion part and the surface fusion part in the tape tension direction. Fastening tape that is bonded to the non-formed part of the part . A fastening tape used to fix the front and back of the diaper,
A base material made of a non-woven fabric, and a hook material of a mechanical fastener to be bonded to a part of the surface of the base material,
Corresponding to the adhesion part of the hook material on the surface of the base material, there are micro unevenness of the fiber web on the surface of the base material and unevenness formed by the heat embossing treatment applied as the surface treatment of the fiber web. A surface fusion part is formed by heat-sealing the fiber webs so as to reduce at least, and is a fastening tape in which the hook material is bonded to the surface fusion part.
The surface fusion part is a plurality of stripes intermittently arranged in a direction orthogonal to the tape tension direction, the hook material is bonded to the surface fusion part, and the surface fusion part is between the surface fusion parts. fastening tape that is adhered to the non-formation portion of the surface fusion part. A fastening tape used to fix the front and back of the diaper,
A base material made of a non-woven fabric, and a hook material of a mechanical fastener to be bonded to a part of the surface of the base material,
Corresponding to the adhesion part of the hook material on the surface of the base material, there are micro unevenness of the fiber web on the surface of the base material and unevenness formed by the heat embossing treatment applied as the surface treatment of the fiber web. A surface fusion part is formed by heat-sealing the fiber webs so as to reduce at least, and is a fastening tape in which the hook material is bonded to the surface fusion part.
A plurality of the surface fusion portions are intermittently arranged in a tape tension direction and a direction orthogonal to the tape tension direction, and the hook material is bonded to the surface fusion portion, and between the surface fusion portions. fastening tape that is adhered to the non-formation portion of the surface fusion part. A sheet laminating step for obtaining a long sheet laminate by laminating and adhering a band-like long hook material along the longitudinal direction to a part of the surface of the belt-like long base sheet, and the long sheet lamination A fastening tape manufacturing method including a fastening tape separating step of obtaining a plurality of fastening tapes by separating the body with a predetermined width,
Prior to the sheet laminating step, the fine irregularities of the fiber web on the surface of the long base sheet and the surface treatment of the fiber web corresponding to the adhesion part of the long hook material on the surface of the long base sheet Forming a surface fusion part obtained by heat-sealing the fiber webs so as to reduce at least the unevenness formed by the heat embossing process applied as A method of manufacturing a fastening tape in which a shank hook material is laminated and adhered ,
The surface fusion part is narrower than the hook material of the fastening tape in the tape tension direction, and the hook material is located on both sides of the surface fusion part and the surface fusion part in the tape tension direction. It is adhered to the non-formed part of the surface fusion part,
The surface fusion part is a plurality of stripes intermittently arranged in a direction orthogonal to the tape tension direction, the hook material is bonded to the surface fusion part, and the surface fusion part is between the surface fusion parts. It is adhered to the non-formed part of the surface fusion part,
A plurality of the surface fusion parts are intermittently arranged in a tape tension direction and a direction orthogonal to the tape tension direction, the long hook material is bonded to the surface fusion part, and the surface fusion part A method for producing a fastening tape, which is adhered to a non-formed part of the surface fusion part in between . The tape-type disposable diaper provided with the fastening tape as described in any one of Claims 1-3 .

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