JP4754241B2 - Absorbent article sheet sticking device - Google Patents

Description

  The present invention relates to a sheet sticking device used for articles such as disposable diapers, urine pads, sanitary napkins (hereinafter referred to as “absorbent articles”), and more specifically, a process for producing the absorbent articles. In particular, the present invention relates to an apparatus for sticking sheets for absorbent articles that sticks sheets used for the article with a predetermined seal pattern.

  Absorbent articles, such as disposable paper diapers, are usually a liquid-permeable surface sheet disposed at least on the skin contact surface side, a liquid-impermeable back sheet disposed on the outer surface side, and a space between these two sheets. The article main body is constituted by the interposed absorbent body, and excrement such as urine and feces is transferred to the absorbent body through the surface sheet and absorbed and held.

  Further, conventionally, for the purpose of reducing the contact area to the skin and suppressing the feeling of moistness to maintain the dry feeling of the surface, improving the feeling of touch, or preventing the return of body fluids, etc. There has been proposed an absorbent article in which a mesh sheet is adhered to a sheet as a top sheet.

  FIG. 7 is an upper surface (partial cross-sectional view) of a disposable tape-type disposable diaper 10 that is an example of such an absorbent article.

  That is, the paper diaper 10 includes a surface sheet 11 disposed on the skin contact surface side (front surface side), a back sheet 12 disposed on the outer surface side (non-skin contact surface side), and both the sheets 11 and 12. A diaper main body 15 having a planar shape formed into a pseudo hourglass shape is constituted by a rectangular absorbent body 14 that is interposed therebetween and is entirely covered with water absorbent paper 13 such as crepe paper. Here, the surface sheet 11 is formed in a double structure by sticking a rectangular mesh sheet 17 in the longitudinal direction of the top surface of the top sheet 16, and the strength of the region of the surface sheet 11 through which excrement such as urine flows most is increased. Is planned.

  As is well known in the art, in the longitudinal direction of both side edges of the absorbent body 14 of the diaper main body 15, it is disposed along the gather sheet 18 provided on the skin contact surface side and the inner edge thereof. A three-dimensional gather 20 standing on the skin contact surface side is formed by the elastic elastic member 19g, and a plurality of elastic elastic members 19l for legs are disposed on both side edges, and the back edge 10EF is provided on the edge 10EF. Are provided with a plurality of elastic elastic members 19w around the waist. In the longitudinal direction of the diaper main body 15, a front body 10FP, a leg periphery 10LO, and a back body 10BP are formed, and fastening tapes having various known male members 21 on the left and right side edges of the back body 10BP. 22 is connected, and this male material 21 is mechanically engaged with a female material (not shown) of a frontal tape 23 provided on the surface of the front body 10FP of the diaper main body 15, whereby the paper diaper 10 is worn. In the present paper diaper 10, a waterproof film 24 is disposed between the back sheet 12 and the absorber 14, and the waterproof film 24 is disposed between the top sheet 11 and the absorber 14. As in the case of the second sheet, it is also well known that it is appropriately provided as necessary.

  FIG. 8 is an enlarged view of an example of the surface sheet 11 used in the present paper diaper 10, FIG. 8A is a top view of the surface sheet 11, and FIG. 8B is AA in FIG. It is sectional drawing. As shown in the figure, the top sheet 11 includes a top sheet 16 and a mesh sheet 17 having an opening 25 formed in an elliptical shape with a predetermined interval P2 in the traveling direction of the sheet (hereinafter referred to as “MD direction”). In the MD direction, it is attached through a portion 26 (hereinafter referred to as “seal part”) that is attached in an elliptical shape with a predetermined interval P1. Note that a pattern (hereinafter referred to as “opening pattern”) formed by the shape, size, interval P2, and the like of the opening 25, and a pattern (hereinafter, referred to as “opening pattern”) by the shape, size, interval P1, etc. Hereinafter, various patterns are prepared according to the kind of the paper diaper 10, that is, the purpose of use and use (for example, for adults or infants) of the paper diaper 10. Paper diaper products are commercially available.

  By the way, in the manufacturing process of the present paper diaper 10, when the top sheet 16 and the mesh sheet 17 are adhered as described above to form the top sheet 11, an adhesive such as a hot melt adhesive is usually used. It was. However, when the seal portion 26 is formed by the adhesive as described above, since the mesh sheet 17 is provided with a large number of fine openings 25, the adhesive heated and melted from the openings 25 oozes out and is exposed. As a result, the adhesive adheres to equipment such as a feed roll in the production line, causing sheet conveyance failure and the like, resulting in reduced operability. In addition, when a product with such an adhesive attached is shipped, there is a problem in use that gives the wearer rough skin and discomfort.

  Therefore, it is conceivable to reduce the application amount of the adhesive, but if the application amount of the adhesive is reduced in this way, the adhesive strength between the top sheet 16 and the mesh sheet 17 is reduced, and the wet strength of the top sheet 11 is reduced. There has been a problem of causing quality degradation due to such reasons. For this reason, recently, it is widely performed that the top sheet 16 and the mesh sheet 17 are adhered using a heat fusion apparatus such as an ultrasonic wave or a heat seal instead of adhesion with an adhesive.

  Conventionally, as such a heat sealing apparatus, for example, an ultrasonic seal apparatus 30 as shown in an elevational view in FIG. 9 or a press seal apparatus 40 as shown in FIG. 10 is generally used.

  That is, the ultrasonic sealing device 30 shown in FIG. 9 includes a shaft-integrated pattern roll unit 32 placed on the upper part of the base 31 and an ultrasonic seal unit 33 arranged on the upper part of the pattern roll unit 32. It is configured. A pattern roll 32r having a predetermined seal pattern required for each disposable diaper product is mounted on the pattern roll unit 32 so as to rotate in the direction of the arrow by a motor (not shown). The ultrasonic horn 33h of the ultrasonic sealer 33s thus arranged is disposed so as to contact the upper surface of the outer periphery of the pattern roll 32r.

  According to the ultrasonic sealing device 30 configured as described above, the long top sheet 16w and the long mesh sheet 17w fed in the MD direction indicated by the arrow from each unillustrated raw fabric roll include the ultrasonic seal. The sheets that are combined and integrated with each other upstream of the apparatus 30 are welded via an ultrasonic horn 33h on the outer peripheral upper surface of the pattern roll 32r. The sheet that has been welded with a predetermined seal pattern and formed into a long surface sheet 11w travels in the MD direction indicated by the arrow, is sent to a subsequent process, is cut into a predetermined shape, and is used for manufacturing the diaper body 15. In addition, when performing such welding, it is necessary to match | combine both phases so that the seal | sticker part 26 may not overlap with the opening part 25 of the mesh sheet 17. FIG. This is because if the two overlap, the opening 25 is closed, the passage of excrement and the breathability of urine and the like are inhibited, and the desired adhesive strength cannot be obtained. For this reason, when manufacturing the surface sheet 11, a pattern roll 32 r having a seal pattern corresponding to the opening pattern of the mesh sheet 17 (that is, not overlapping with the opening pattern) is selected in advance and is mounted on the pattern roll unit 32.

  On the other hand, the press-type sealing device 40 shown in FIG. 10 is equipped with a seal unit 42 having a pair of upper and lower press-type rolls on the upper portion of the base 41. A pattern roll 42r having a seal pattern substantially the same as the pattern roll 32r is provided on the top roll of the press roll, while a roll on the bottom side has a smooth outer peripheral surface. A heat roll 42h heated to a desired temperature is provided. The nip pressure between the pattern row 42r and the heat roll 42h is set to a desired value by a pressing means (not shown), and both are rotated in the direction of the arrow by a motor (not shown).

  According to the press-type sealing device 40 configured as described above, the long top sheet 16w and the long mesh sheet 17w fed in the MD direction indicated by the arrow are upstream of the press-type sealing device 40 as described above. The sheets integrated and integrated with each other are welded by the nip pressure and heating between the pattern roll 42r and the heat roll 42h. The sheet, which is welded with a predetermined seal pattern and made into a long surface sheet 11w, travels in the MD direction indicated by the arrow in the same manner as described above and is sent to a subsequent process, and is cut into a predetermined shape to manufacture the diaper main body 15. Provided. When the seal pattern is changed depending on the type of diaper product, the seal unit 42 is removed from the base 41 and replaced with another seal unit 42 having a desired seal pattern prepared in advance.

  However, the ultrasonic sealing device 30 and the press-type sealing device 40 described above, as described above, need to change the seal pattern depending on the type of the disposable diaper product (that is, the absorbent article). In each case, the pattern rolls 32r and 42r, or the pattern roll unit 32 and the seal unit 42 itself, must be replaced with other ones having a desired seal pattern (corresponding to the type of the target absorbent article). However, since this switching work takes a lot of time and effort, there is a problem that the manufacturing cost increases.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a predetermined seal (corresponding to the type of the article) in the manufacturing process between the sheet used for the absorbent article and the sheet. Provided is an absorbent article sheet sticking apparatus in which the seal pattern switching operation can be performed easily and in a short time in an absorbent article sheet sticking apparatus which is attached with a pattern. There is.

An object of the present invention is to provide an apparatus for adhering a sheet for absorbent articles that adheres a top sheet and a mesh sheet constituting a surface sheet used in the article in a manufacturing process of the absorbent article with a predetermined seal pattern. the unit pattern roll having a sealing pattern corresponding to varieties of the absorbent article to the outer peripheral surface, comprises a plurality for each of the varieties, juxtaposed in the traveling direction of the topsheet, an outer peripheral surface of the pattern roll A top sheet which comprises one ultrasonic seal unit with which an ultrasonic horn contacts, and is provided on the upper part of each pattern roll unit so as to be movable between the pattern roll units. and a mesh sheet, a unit of the corresponding unit of the pattern roll having a sealing pattern to said ultrasonic sealing It is passed through is achieved by providing a sticking device of the sheet for an absorbent article, characterized in that sticking between.

  In addition, the object of the present invention is to provide an absorbent article sheet sticking device, wherein the unit of each pattern roll is detachably attached to a base of the device body. Achieved more effectively.

Moreover, the said objective of this invention provides the sticking apparatus of the sheet | seat for absorbent articles, wherein the unit of each said pattern roll is provided so that the MD direction of the said surface sheet can be changed via a pass roll. This is achieved more effectively.

  According to the present invention, a pattern roll unit having a seal pattern corresponding to the type of absorbent article on the outer peripheral surface is prepared for each of the types, arranged side by side in the traveling direction of the sheet, and on the outer peripheral surface of the pattern roll An ultrasonic seal unit abutting on the ultrasonic horn is provided so as to be movable with respect to each pattern roll unit, and the respective sheets to be stuck are inserted into the corresponding pattern roll units and stuck. According to the absorbent article sheet sticking device, when changing the seal pattern, only the ultrasonic seal unit is moved to the corresponding pattern roll unit, and the sheet is inserted into the pattern roll unit. Therefore, the seal pattern switching operation can be performed easily and in a short time.

  Similarly, according to the present invention, a press seal unit comprising a pattern roll having a seal pattern corresponding to the type of absorbent article on the outer peripheral surface and a heat roll nipped by the pattern roll is prepared for each of the types. According to the sticking device for absorbent articles, characterized in that the sticking device is arranged in parallel in the traveling direction of the sheet, and the sticking sheets are stuck through the corresponding press seal units. When changing the seal pattern, it is only necessary to insert only the sheet into the corresponding press seal unit, so that the switching operation of the seal pattern can be performed easily and in a short time as described above.

  In particular, according to the absorbent article sheet sticking apparatus in which each pattern roll unit or press seal unit is detachable from the base of the apparatus body, maintenance of each unit becomes easy and necessary. Accordingly, replacement with a unit having another seal pattern can be easily performed.

  Also, according to the absorbent article sheet sticking device installed so that the MD direction of the sheet of the pattern roll unit or the press seal unit stuck via the pass roll can be changed, if necessary, The advancing direction (production line) of the product can be easily changed, so that space can be saved.

  Hereinafter, the content of the present invention will be described in detail with reference to the drawings, taking as an example the case where the absorbent article is a tape-type disposable paper diaper as described above. The present invention is not necessarily limited to the following examples, and it goes without saying that the configuration can be appropriately changed without departing from the scope of the claims.

  FIG. 1 is an elevational view of an ultrasonic sealing device 130 which is a first embodiment of an absorbent article sheet sticking device according to the present invention. In addition, below, the same code | symbol is attached | subjected to the same component as the conventional sticking apparatus 30 thru | or 40 of the sheet | seat for absorbent articles mentioned above, and the corresponding code | symbol of the 100s is attached | subjected to a corresponding component. explain.

  The ultrasonic sealing device 130 includes two pattern roll units 132A and 132B having substantially the same function as the pattern roll unit 32 of the conventional ultrasonic sealing device 30 shown in FIG. The ultrasonic sealer 133s is provided on the upper portion so as to be slidable in the MD direction as indicated by a dotted line.

  In other words, the ultrasonic sealing device 130 is configured such that the position in the MD direction is regulated via the guide member 131 g provided on the base 131, and the two shaft-integrated type are juxtaposed on the upper plate 131 p of the base 131. The pattern roll units 132A and 132B and one ultrasonic seal unit 133 disposed on the upper plate 133p fixed above the pattern roll units 132A and 132B and movable in the MD direction are configured. ing.

  The pattern roll unit 132A includes a fixed frame 132fa so that a pattern roll 132ra having a predetermined seal pattern (for example, a paper diaper product for adults) required for each paper diaper product is rotated in the arrow direction by a motor (not shown). Similarly, in the pattern roll unit 132B, a pattern roll 132rb having a predetermined seal pattern (for example, for infants) required for each paper diaper product on the outer peripheral surface is moved in the direction of the arrow by a motor (not shown). It is mounted via a fixed frame 132fb so as to rotate. The pattern roll 132rb is set to have a smaller roll diameter than the pattern roll 132ra.

  Each pattern roll unit 132A, 132B is selected as a desired pattern roll unit prepared and prepared in advance corresponding to the type of paper diaper product to be manufactured, and laid on the upper plate 131p of the base 131. The guide rails 131ga and 131gb are provided so as to be detachable by hand in a direction orthogonal to the MD direction. The pattern roll units 132A and 132B mounted on the apparatus main body are fixed to the base frame by screws 132s. If necessary, the laying angle of the guide rails 131ga and 131gb is not limited to the direction orthogonal to the MD direction, but can be changed to an arbitrary angle, thereby setting the MD direction to a desired direction as necessary. This can save space.

  The ultrasonic seal unit 133 includes an ultrasonic sealer 133s fixed via a fixed frame 133f, and the ultrasonic horn 133h at the lower end of the ultrasonic sealer 133s is placed on the outer peripheral upper surface of the pattern roll 132ra. When 133 is moved in the MD direction (right side), the pattern roll 132ra is disposed so as to come into contact with the upper surface. The ultrasonic seal unit 133 is provided so as to be easily reciprocated in the MD direction manually (electrically as necessary) using a guide member or the like along a guide rail 133g laid on the upper plate 133p. In addition, a well-known thing is used for the ultrasonic sealer 133s.

  For example, when producing a disposable diaper product for adults by the ultrasonic sealing device 130 configured as described above, a long top sheet 16w fed from each raw fabric roll (not shown) in the MD direction indicated by the length The mesh sheet 17w of the scale is combined with each other upstream of the ultrasonic sealing device 130, and the integrated sheet is welded via the ultrasonic horn 133h on the outer peripheral upper surface of the pattern roll 132ra. The sheet, which is welded with a predetermined seal pattern and made into a long surface sheet 11w, is turned through a pass roll, travels in the MD direction indicated by the arrow, is sent to a subsequent process, is cut into a predetermined shape, and is adult The paper diaper main body 15 is used for manufacturing.

  Here, as a material for forming the top sheet 16 used in the present paper diaper 10, a liquid-permeable or hydrophilic or water-repellent material such as a non-porous or perforated nonwoven fabric or a porous plastic sheet is preferably used. Examples of the material fibers constituting such a nonwoven fabric include, for example, synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester or amide, recycled fibers such as rayon or cupra, and natural fibers such as cotton. it can. Also, a core-sheath fiber, a side-by-side fiber, a split fiber, or the like having a fiber having a high melting point as a core and a fiber having a low melting point as a sheath can be used effectively. As for the processing method, a nonwoven fabric obtained by an appropriate processing method such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Among these processing methods, the spunlace method is excellent in terms of richness in flexibility and drape, and the thermal bond method is excellent in terms of being bulky and soft. However, the top sheet 16 in the paper diaper 10 is not necessarily limited to these. It is not limited to materials or processing methods. The surface of the top sheet 16 may be embossed (not shown). In addition, the embossing here is performed in a step before the top sheet 16 is combined with the absorber 14, and the absorber 14 is not deformed.

The mesh sheet 17 used in the present paper diaper 10 is a sheet having a thickness of 0.1 to 5.0 mm, preferably 0.3 to 2.0 mm. The opening 25 is formed in a continuous mesh shape. The mesh sheet 17 has a hole area ratio of 15 to 30%, preferably 18 to 20%, and the number of holes is 15 or less / cm ² , preferably 6 to 12 / cm ^2. . Further, the size of the opening 25 is set to a diameter of 0.1 to 10.0 mm, preferably 0.15 to 5.5 mm.

  In order to form the opening 25 as described above, the mesh sheet 17 is softened to near the softening temperature, and is sucked from below the support in a state where it is positioned on the upper surface of the support having a large number of openings. It can be formed by various known methods such as a method of pressurizing air pressure from the upper surface of the support or a pitch embossing process in which a sheet material is stretched and opened after a large number of slits are engraved on the sheet material. it can. The shape of the opening 25 of the mesh sheet 17 can be various shapes such as a circular shape, a rectangular shape, an elliptical shape, a triangular shape, a star shape, etc. A shape having no corners is preferable because the feel of the mesh sheet 17 becomes soft and the touch of the top sheet 11 becomes soft.

  As a material for forming the mesh sheet 17, for example, an olefin-based thermoplastic resin film such as polyethylene or polypropylene is preferably used, but a polyamide-based resin such as polyester or nylon, a vinyl acetate copolymer, or the like. A sheet or the like can also be used. Furthermore, a sheet having a multilayer structure in which two or more of these materials are laminated and bonded can also be used.

  Further, the hydrophilicity of the surface of the mesh sheet 17 is preferably regular hydrophilicity or water repellency, and if the hydrophilicity is too high, excrement, particularly soft stool moisture, diffuses to the surface, so that the solid content of the stool Even if absorbed, the spread of moisture can be seen on the surface of the wearer, which is unfavorable.

  In the ultrasonic sealing device 130, the top sheet 16w and the mesh sheet 17w made of the forming material as described above are attached to form the top sheet 11w.

  FIG. 2 is a top view showing an example of the top sheet 11wA that is adhered and formed by the ultrasonic sealing device 130 described above. As shown in the figure, the top sheet 11wA is formed by sticking a mesh sheet 17w having an opening 25 opened in the MD direction with a spacing P2 on the top surface of the top sheet 16w with a seal pattern formed by the seal part 26. ing.

  In the ultrasonic sealing device 130, when the seal pattern is switched to, for example, a baby diaper, the ultrasonic seal unit 133 is moved to the right as shown by a dotted line in FIG. 1, and the top sheet 16w and the mesh sheet 17w Is completed by inserting the sheet integrated with the pattern roll 132rb on the pattern roll unit 132B side through the pass roll.

  FIG. 3 is a top view showing an example of the surface sheet 11wB that is adhered and formed by the ultrasonic sealing device 130 as described above. As shown in the figure, the top sheet 11wB is formed by sticking a mesh sheet 17w having an opening 25 opened in an elliptical shape to the upper surface of the top sheet 16w with a seal pattern formed by an elliptical sealing portion 26. ing.

  In addition, when performing such welding, it is necessary to match | combine both phases so that the seal | sticker part 26 may not overlap with the opening part 25 of the mesh sheet | seat 11w, as above-mentioned, FIG.2 and FIG.3. As is clear from the seal pattern shown, sufficient consideration has been given to these points in any seal pattern.

  Since the ultrasonic sealing device 130 is configured as described above, when changing the seal pattern, only the ultrasonic seal unit 133 is moved to the corresponding pattern roll unit, and the sheet is inserted into the pattern roll unit. Since it is completed, the switching operation of the seal pattern can be performed easily and in a short time.

  In addition, the MD direction (manufacturing line) can be freely set by making the MD direction of the mesh sheet 17w variable via a pass roll and installing the pattern roll unit so that the mounting direction of the pattern roll unit can be changed as necessary. This can be changed, thereby saving space.

  FIG. 4 is an elevation view of a press-type sealing device 140 which is a second embodiment of the absorbent article sheet sticking device according to the present invention.

  This press-type seal device 140 is formed by arranging two seal units 142C and 142D having substantially the same function as the seal unit 42 of the conventional press-type seal device 40 shown in FIG. 10 in parallel in the MD direction. Yes.

  In other words, the press-type sealing device 140 has two seal units 142C and 142D each having a pair of upper and lower press-type rolls, and the position in the MD direction is regulated via the guide member 141g provided on the base 141. The guide rails 141gc and 141gd laid on the upper plate 141p of the table 141 are detachably provided in a direction perpendicular to the MD direction. Each of the seal units 142C and 142D mounted on the apparatus main body is fixed to the base frame by screws 142s. As in the above embodiment, the MD direction is necessary by setting the laying angle of the guide rails 141gc and 141gd to be an arbitrary angle as well as the direction orthogonal to the MD direction as necessary. Can be set in a desired direction, and space can be saved.

  Here, the seal unit 142C is similar to the above embodiment, for example, in the case of manufacturing a surface sheet used for adult paper diapers, and the seal unit 142D is in the case of manufacturing a surface sheet used for infant paper diapers. Is provided.

  The top roll of the seal unit 142C has a pattern roll 142rc having a corrugated seal pattern as shown in the top view of FIG. 5, while the bottom roll has a smooth outer peripheral surface and is not shown. Heat rolls 142hc heated to a desired temperature by the heating means are provided. The nip pressure between the pattern roll 142rc and the heat roll 142hc is set to a desired value by a pressing means (not shown), and both are configured to rotate in the direction of the arrow by a motor (not shown).

  According to the press-type sealing device 140 configured in this way, the long top sheet 16w and the long mesh sheet 17w fed in the MD direction indicated by the arrow are upstream of the press-type sealing device 140 as described above. The sheets integrated and integrated together are welded by the nip pressure and heating of the pattern roll 142rc and the heat roll 142hc. The sheet, which is welded with a seal pattern having a corrugated shape as shown in FIG. 5 and is formed into a long topsheet 11w, is turned in the same way as described above through the pass roll, and travels in the MD direction indicated by the arrow to be a post process. The diaper body 15 is cut into a predetermined shape and used for manufacturing the diaper body 15.

  Similarly, the roll on the top side of the seal unit 142D has a pattern roll 142rd having an elliptical seal pattern as shown in the top view of FIG. 6, while the roll on the bottom side has a smooth outer peripheral surface. Heat rolls 142hd that are heated to a desired temperature by heating means that do not perform are provided. The nip pressure between the pattern roll 142rd and the heat roll 142hd is set to a desired value by a known pressurizing means (not shown), and both are rotated in the direction of the arrows by a motor (not shown).

  A mesh sheet 17w having a star-shaped opening 25 as shown in FIG. 6 is welded to the top sheet 16w with a seal pattern composed of an elliptical seal portion 26, and the sheet formed as a long surface sheet 11w is the same as described above. Then, it travels in the MD direction of the arrow and is sent to the subsequent process, and is cut into a predetermined shape and used for manufacturing the diaper body 15.

  If it is necessary to change the seal pattern to another one depending on the type of the disposable diaper product, the seal unit 142C or 152D itself is removed from the base 41 to have a desired seal pattern prepared in advance. It is replaced with another seal unit 42.

  According to the press-type sealing device 140 configured as described above, when the seal pattern is changed, preparation is completed only by changing only the sheet insertion route. Therefore, the seal pattern switching operation is performed in the first embodiment described above. This can be performed more easily and in a shorter time than the ultrasonic sealing apparatus 130 according to the present embodiment.

  Further, similarly to the above embodiment, by changing the MD direction of the mesh sheet 17w via the pass roll, and by installing it so that the mounting direction of the seal units 142C and 152D with respect to the apparatus main body can be changed as necessary, The MD direction (manufacturing line) can be changed freely, thereby saving space.

  The contents of the present invention have been described above for the case where two pattern roll units or seal units are arranged in the MD direction and the seal pattern is switched to two types. In the present invention, such units are installed. The number is not necessarily limited to the above-mentioned embodiment, and the number is set to 3 or more according to necessity, for example, depending on the type of absorbent article to be manufactured. Further, it goes without saying that various methods can be employed for mounting each unit to the apparatus main body.

  As described above, the content of the present invention has been described by taking as an example the case where a top sheet and a mesh sheet are adhered to produce a top sheet. However, the present invention is not limited to the above. The present invention can also be applied to the attachment of various sheets constituting the absorbent article, such as the attachment of sheets and gather sheets. In addition, as above-mentioned, the absorbent article said by this invention is not limited to the said disposable paper diaper.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an elevational view of an ultrasonic seal device that is a first embodiment of an apparatus for sticking absorbent article sheets according to the present invention. It is a top view which shows the sealing pattern of the surface sheet manufactured by sealing with one pattern unit of the said ultrasonic sealing apparatus. It is a top view which shows the seal pattern of the surface sheet manufactured by sealing with the other seal pattern unit of the said ultrasonic sealing apparatus. It is an elevational view of a press-type sealing device which is a second embodiment of the apparatus for sticking absorbent article sheets according to the present invention. It is a top view which shows the sealing pattern of the surface sheet manufactured by sealing with one sealing unit of the said press-type sealing apparatus. It is a top view which shows the seal pattern of the surface sheet manufactured by sealing with the other seal unit of the said press type sealing apparatus. It is an expansion | deployment top view of the disposable paper diaper which is an example of an absorbent article. It is a figure which shows an example of the seal pattern in the conventional surface sheet, (A) is the top view, (B) is AA sectional drawing of (A). It is an elevational view of a conventional ultrasonic sealing device. It is an elevational view of a conventional press-type sealing device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tape-type paper diaper 11 Top sheet 11w (Long form) Top sheet 12 Back sheet 14 Absorber 15 Diaper main body 16 Top sheet 16w (Long form) Top sheet 17 Mesh sheet 17w (Long form) Mesh sheet 25 Opening portion 26 Sealing portion 30, 130 Ultrasonic sealing device 31, 131 Base 32, 132A, 132B Pattern roll unit 32r, 132ra, 132rb Pattern roll 33, 133 Ultrasonic sealing unit 33s, 133s Ultrasonic sealer 33h, over 133h Sonic horn 40, 140 Press-type sealing device 41, 141 Base 42, 142 Seal unit 42r, 142rc, 142rd Pattern roll 42h, 142hc, 142hd Heat roll

Claims (3)

In the affixing device for absorbent article sheets for adhering the top sheet and the mesh sheet constituting the surface sheet used for the article in the manufacturing process of the absorbent article with a predetermined seal pattern,
A plurality of pattern roll units each having a seal pattern corresponding to the type of the absorbent article on the outer peripheral surface, and arranged side by side in the traveling direction of the top sheet,
It comprises one unit of ultrasonic seal that an ultrasonic horn contacts the outer peripheral surface of the pattern roll, and is provided on the upper part of the unit of each pattern roll so as to be movable between the units of each pattern roll,
An absorbent article, wherein a top sheet and a mesh sheet constituting the top sheet are inserted between a pattern roll unit having a corresponding seal pattern and an ultrasonic seal unit and adhered. Sheet sticking device.   2. The absorbent article sheet sticking apparatus according to claim 1, wherein the unit of each pattern roll is detachably attached to a base of the apparatus main body.   The absorptive article sheet sticking apparatus according to claim 1 or 2, wherein the unit of each pattern roll is provided so that the traveling direction of the topsheet can be changed via a pass roll.

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