JP2008200169A - Method to apply adhesive and method to manufacture absorbent article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method to apply an adhesive which permits the adhesive to be applied in a complicated pattern and a method to manufacture an absorbent article using the adhesive application method. <P>SOLUTION: The adhesive application method to form an adhesion area P made up of an application portion 12 of the adhesive B and a nonapplication portion 16 to which the adhesive B is not applied on one side 2a' of a foundation 2', applies the adhesive B to the entire surface of an area P' scheduled to form an adhesive area where the adhesion area P is formed in the one side 2a' after a release agent E is applied to a portion 16' scheduled to form the nonapplication portion where the nonapplication portion 16 is formed in the one side 2a' of the foundation 2' during a transit, and subsequently removes the adhesive B applied to the portion 16' scheduled for the formation of the nonapplication portion. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an adhesive application method for forming an adhesive region composed of an adhesive application portion and a non-application portion where the adhesive is not applied on one surface of a substrate, and an absorptivity using the application method The present invention relates to a method for manufacturing an article.

  Conventionally, in an absorbent article such as a sanitary napkin or a disposable diaper, an adhesive is used for joining the constituent members. Also, for absorbent articles such as sanitary napkins, panty liners, incontinence pads, etc., adhesion to the clothing contact surface side (non-skin contact surface side) for fixing the absorbent product to underwear such as shorts An agent application unit is provided. The application pattern of the adhesive in these absorbent articles is in consideration of the bonding strength between the constituent members, prevention of deterioration of the liquid permeability and moisture permeability of the absorbent article by the adhesive, liquid impermeability, prevention of leakage, etc. In many cases, a complicated coating pattern is required.

Regarding the method of applying an adhesive in the manufacturing process of an absorbent article, for example, in Patent Document 1, the adhesive is discharged from an air pressure-adjustable dispenser gun type discharge means, attached to a hot melt film, and then folded. Disclosed is a method for forming an adhesive application portion for fixing the sanitary napkin to an undergarment or the like by superimposing the sanitary napkin on the hot melt film so that the adhesive adheres to a predetermined location. Yes.
Further, in Patent Document 2, after applying a release agent to a predetermined location on one surface of a constituent member of an absorbent article with an application roll, the adhesive is adhered to a location other than the predetermined location on the one surface with a dispenser provided with a plurality of nozzles. A method of forming a peeling portion and an adhesive portion on one surface of the sheet material by applying an agent is disclosed. The adhesive part is for fixing the absorbent article to an undergarment or the like, and the peeling part is overlapped with the adhesive part before the absorbent article is used to protect it.

  However, the adhesive application method conventionally employed in the manufacturing process of absorbent articles is to form a complicated application pattern in which an adhesive application part and a non-application part where no adhesive is applied are mixed. It was difficult and could not meet various needs related to coating patterns. In particular, hot melt adhesives frequently used in the manufacture of absorbent articles and the like can be applied in the desired application pattern at the instant of application, but immediately after application, the adhesive on the application part turns to the non-application part. In the press process performed after applying the adhesive, the adhesive of the application part is crushed and the application part is enlarged. For example, an application pattern in which the non-application part is small or configured with thin lines is used. At present, it is difficult to form with a hot melt adhesive. In addition, at the site where hot melt adhesive is used, the application amount may be increased in order to sufficiently exert the adhesive force. In this case, the application portion may be expanded due to wrapping or crushing of the adhesive. It becomes even more prominent.

  In the absorbent article, the portion where the adhesive is applied in a predetermined application pattern may be required to have a certain degree of liquid permeability and moisture permeability. In the manufacturing process of an adhesive article, it is important to apply an adhesive so that the adhesive does not enter a portion to be a non-applied portion of the adhesive constituting the coating pattern. However, in the conventional adhesive application method, it is difficult to form the application part without allowing the adhesive to enter the non-application part.

JP-A-8-215623 JP 11-192257 A

  Accordingly, it is an object of the present invention to provide an adhesive application method capable of applying an adhesive in a complicated application pattern, and an absorbent article manufacturing method using the application method.

  The present invention is an adhesive application method for forming an adhesive region composed of an adhesive application portion and a non-application portion to which the adhesive is not applied on one surface of the base material, the substrate being transported After applying a release agent to a non-application portion formation scheduled portion where the non-application portion is formed on one surface, an adhesive is applied to the entire adhesion region formation planned region where the adhesion region is formed on the one surface. Then, the above object is achieved by providing an adhesive application method in which the adhesive applied to the non-applied part formation scheduled part is removed by an adhesive removing means.

  The present invention also relates to a method for producing an absorbent article comprising an absorbent main body and an adhesive application section for fixing the absorbent main body to clothing, and is bonded to one surface of a long substrate by the application method. After the agent is applied, the absorbent main body and the base material are passed between a pair of pressure rolls in a state where the adhesive application portion of the base material is opposed to the absorbent main body. By transferring the adhesive applied to the substrate to the absorbent main body to form the adhesive application portion (hereinafter also referred to as a first manufacturing method). ) Is achieved.

  Moreover, this invention is a manufacturing method of the absorbent article which has the process of bonding together the 1st base material and the 2nd base material with an adhesive agent, Comprising: By the said application | coating method on one surface of the said 1st base material. After the adhesive is applied, the first base material and the second base material are overlapped so that the application portion of the adhesive on the first base material faces the second base material. The object is achieved by providing a method for manufacturing an absorbent article having a matching step (hereinafter also referred to as a second manufacturing method).

  The adhesive application method of the present invention can apply the adhesive in a complicated application pattern, and can sufficiently meet various needs related to the application pattern.

  According to the adhesive application method of the present invention, for example, an adhesive application pattern (adhesion region) as shown in FIG. 15 can be formed. In the application pattern shown in FIG. 15, only the line (curve) constituting the petal pattern is a non-application part where the adhesive is not applied, and all other than the line is an application part where the adhesive is applied. According to the method for applying an adhesive of the present invention, it is possible to form such a small and narrow non-application portion or application portion.

Moreover, the manufacturing method of the absorbent article of this invention can apply | coat an adhesive agent with a complicated application | coating pattern, and can prevent the liquid permeability of the absorbent article and moisture permeability fall by application | coating of an adhesive agent.
Further, according to the method for manufacturing an absorbent article of the present invention, an adhesive application pattern composed of a complicated pattern as shown in FIG. 15 can be formed. For example, a substance that changes color when absorbing urine is used as the adhesive. By containing it in the absorbent article, it is possible to obtain an absorbent article capable of producing a highly designed urine absorption sign (pee sign).

  Hereinafter, the application method of the adhesive of the present invention will be described together with the manufacturing method (first manufacturing method and second manufacturing method) of the absorbent article of the present invention using the coating method, with reference to the drawings based on preferred embodiments thereof. While explaining. First, the 1st manufacturing method of this invention is demonstrated.

FIG. 1 is a perspective view of an individually packaged product of a sanitary napkin that is an absorbent article manufactured by the first embodiment of the first manufacturing method of the present invention, and FIG. 2 shows an individual packaged product shown in FIG. FIG. 3 is a plan view showing the skin contact surface side (surface sheet side) in the unfolded state, and FIG. 3 is a plan view showing the non-skin side contact surface (back sheet side) of the sanitary napkin in the individually packaged product shown in FIG. It is shown.
As shown in FIG. 1, the sanitary napkin 1 manufactured in the first embodiment is finally an individual packaged product 10 formed by packaging the napkin 1 with a sheet-like member 2.

  The napkin 1 includes an absorbent main body 11 formed in a vertically long shape and an adhesive application unit 12 that fixes the absorbent main body 11 to clothing such as shorts. The adhesive application part 12 has an elongated rectangular shape extending in the longitudinal direction L of the absorbent main body 11, and a plurality (four in the first embodiment) are formed on the non-skin contact surface side of the absorbent main body 11. Has been. The plurality of adhesive application portions 12, 12,... Are arranged in parallel at a predetermined interval in the width direction S of the absorbent main body 11. The width direction S is a direction orthogonal to the longitudinal direction L. A gap between adjacent adhesive application portions 12 and 12 is a non-application portion 16 where no adhesive is applied. Thus, on the non-skin contact surface side of the absorbent main body 11, a rectangular-shaped adhesive region composed of the adhesive application part 12 and the non-application part 16 to which no adhesive is applied (in FIG. 3, hatched lines) Are formed).

The length in the longitudinal direction of the adhesive application part 12 is preferably 5 to 50 cm, more preferably 10 to 40 cm.
The length in the width direction of each adhesive application part 12 is preferably 1 to 30 mm, more preferably 2 to 25 mm.
The space | interval of several adhesive agent application parts 12,12 ..., ie, the length of the width direction of the non-application part 16, becomes like this. Preferably it is 1-90 mm, More preferably, it is 2-45 mm.

  The absorptive main body 11 includes a top sheet 13 that constitutes a skin contact surface, a back sheet 14 that constitutes a non-skin contact surface, and a liquid-retaining absorbent 15 interposed between the sheets 13 and 14. ing. The skin contact surface is a surface directed toward the wearer's skin when worn, and the non-skin contact surface is a surface directed toward the underwear side (the opposite side of the wearer's skin) when worn. is there. The back sheet 14 and the absorber 15 are joined by an adhesive.

  The sheet-like member 2 forms the outer surface of the individually packaged product 10, functions as a packaging material for the napkin 1, and a protective material for the adhesive application part 12, and has a larger rectangular shape than the absorbent main body 11. Yes. The sheet-like member 2 is detachably bonded to a plurality of adhesive application portions 12, 12... Formed on the surface of the absorbent main body 11 on the non-skin contact surface side (back surface sheet 14). The entire surface of the absorbent main body 11 on the non-skin contact surface side is covered. A known pressure sensitive adhesive tab tape 3 is provided on one edge along the width direction of the sheet-like member 2.

The surface sheet 13, the back sheet 14, the absorbent body 15, the forming material (adhesive) of the adhesive application part 12, and the sheet-like member 2 (packaging material) are used as materials in conventional sanitary napkins, respectively. Various known materials can be used without particular limitation.
As the surface sheet 13, for example, various liquid-permeable sheet materials such as a nonwoven fabric and an apertured film can be used.
As the back sheet 14, a leak-proof sheet having liquid impermeability or poor liquid permeability can be used. As the leak-proof sheet, for example, a resin film not having moisture permeability, a resin film having fine pores and moisture permeability, a nonwoven fabric such as a water-repellent nonwoven fabric, and a laminate of these and other sheets are used. be able to. A liquid-impermeable or liquid-permeable sheet material such as a nonwoven fabric may be disposed on the non-skin contact surface side of the back sheet 14 made of the leak-proof sheet. The leak-proof sheet and the sheet material can be joined by a known joining means such as an adhesive.

As the absorbent body 15, a fiber assembly made of hydrophilic fibers such as defibrated pulp, or a structure in which a superabsorbent polymer is held thereon can be used.
As an adhesive for forming the adhesive application part 12, a hot melt adhesive or the like can be used. Details of the adhesive used in the present invention will be described later.
As the sheet-like member 2, a film made of a resin such as polyethylene, polypropylene, or polyvinyl alcohol, a nonwoven fabric, paper, an SMS nonwoven fabric that has been subjected to a peeling treatment on one or both sides, or these are appropriately bonded. A sheet material, a base sheet and a release paper or a release film attached thereto can be used.

  When the individual package 10 is used, the tab tape 3 is picked and pulled from the state shown in FIG. 1, and the sealing portions of the side portions 2a and 2a are peeled off to obtain the unfolded state shown in FIG. And the sheet-like member 2 is peeled along the longitudinal direction L from this development | deployment state, and as shown in FIG. 3, several adhesive agent application parts 12, 12, ... are exposed. When the sheet-like member 2 is peeled off, the plurality of adhesive application portions 12, 12... Are formed in a specific pattern as shown in FIG. A plurality of adhesive application portions 12, 12... Extending in the longitudinal direction L of the absorbent main body 11 and arranged in parallel in the width direction S of the absorbent main body 11 are formed on the non-skin contact surface side). As described above, since the adhesive is applied, the peeling sound is effectively reduced. Next, the napkin 1 is fixed on the crotch portion of the shorts through the plurality of adhesive application portions 12, 12. In this way, the napkin 1 can be used by being attached to the underwear.

Next, 1st Embodiment of the 1st manufacturing method of this invention is described, referring drawings based on the manufacturing method of the napkin 1 mentioned above.
FIG. 4A shows a schematic process diagram of the manufacturing method of the first embodiment, and FIG. 4B shows an intermediate state in each of (1) to (4) shown in FIG. A plan view of the product is shown.

  In the manufacturing method of the first embodiment, reference numeral 30 in FIG. 4 denotes a means for forming the above-described adhesive application part 12 (adhesive region composed of the adhesive application part 12 and the non-application part 16) on the absorbent main body 11. The adhesion region forming means shown is used. The adhesion region forming means 30 includes a conveying means (not shown) that conveys a long sheet-like member 2 ′ (base material), and a release agent applying means 40 that applies a release agent E to one surface 2a ′ of the sheet-like member 2 ′. An adhesive applying means 60 for applying the adhesive B on the one surface 2a ′, an adhesive removing means 70 for removing the adhesive B applied on the release agent E on the one surface 2a ′, and a pair of Pressure rolls 80 and 80 are provided. The one surface 2a ′ of the sheet-like member 2 ′ can be applied with the release agent E and the adhesive B, and the adhesive force to the one surface 2a ′ of the release agent E is larger than the adhesive force to the one surface 2a ′ of the adhesive B. Thus, the surface treatment is performed so that the adhesive B is more easily peeled from the surface 2a 'than the release agent E. Due to the surface treatment of the sheet-like member 2 ′, the adhesive force of the adhesive B applied to the adhesive application part 12 to the napkin 1 (rear sheet 14) is greater in the individual package 10. Therefore, even if the sheet-like member 2 is peeled off when the napkin is used, the adhesive B does not move to the sheet-like member 2 side, and adheres to the back sheet 14. Will remain.

  FIG. 5 is a schematic diagram (cross-sectional view) showing an example of the release agent coating means 40. The release agent application means 40 shown in FIG. 5 is a so-called rotary screen type application device, and an application roll 41 that comes into contact with one surface 2a ′ of the long sheet-like member 2 ′ when applying the release agent E, and a sheet A backup roll 42 that supports the surface opposite to the one surface 2a 'of the sheet-like member 2' on the outer peripheral surface, and the sheet-like member 2 'before entering the backup roll 42 on the upstream side of the sheet-like member 2' being conveyed And an expander roll 43 that prevents the generation of wrinkles. Each of the coating roll 41, the backup roll 42, and the expander roll 43 is formed of a cylindrical member and rotates around an axis.

  The coating roll 41 forms a roll peripheral surface (outer circumferential surface) of the coating roll 41, and discharges a release agent E, a screen mask 44 having an annular cross-sectional shape, an annular support frame 45 that supports the screen mask 44. A nozzle 46 that adjusts the pressing force of the nozzle 46 against the screen mask 44, and a pump 49 that replenishes the nozzle 46 with the release agent E via a pipe 48.

  As shown in FIG. 6, a release agent supply unit 44 a extending in the axial direction A (perpendicular to the paper surface in FIG. 5) of the coating roll 41 is provided on the circumferential surface of the coating roll 41. A plurality are formed along R. In the first embodiment, the screen mask 44 that forms the roll peripheral surface of the coating roll 41 is formed with a plurality of openings 44 a as release agent supply units. The release agent E discharged from the nozzle 46 passes through the opening 44a and is applied to the sheet-like member 2 '. The application part of the release agent E is a part to which the adhesive B used in the subsequent adhesive application process is difficult to adhere, and finally, the non-application part 16 in the adhesive region (see FIG. 3) of the napkin 1 Become. Therefore, the shape of the non-application part 16 is determined by the shape of the opening 44a. In the first embodiment, the opening 44 a (release agent supply unit 44 a) has an elongated rectangular shape, and has the same shape as the non-application part 16 formed in the absorbent main body 11.

  A plurality of apertures 44a, 44a,... Formed in the screen mask 44 has an application pattern of a release agent E applied to one absorbent main body 11 (a plurality of non-application portions 16, 16,... The pattern B1 corresponding to the (formation pattern) is formed as a pattern B2 formed by a plurality at predetermined intervals along the circumferential direction R of the coating roll 41. Since the plurality of apertures (release agent supply portions) 44a, 44a,... Are formed in such a pattern B2, the release agent E is applied to the one surface 2a ′ of the sheet-like member 2 ′ when the release agent E is applied. In the same pattern as the pattern B2, that is, a direction in which a plurality of application parts of the release agent E extending in the width direction of the sheet-like member 2 ′ are orthogonal to the width direction (longitudinal direction of the sheet-like member 2 ′ or conveyance) The coating pattern is applied with a predetermined interval in the direction).

  FIG. 7 is a schematic diagram (cross-sectional view) showing an example of the adhesive application unit 60. The adhesive application means 60 shown in FIG. 7 is a so-called die coater type application device, and includes a die coater 61 in addition to the backup roll 42. The die coater 61 includes a discharge port 62 having a shape corresponding to the shape of the adhesive application part 12 formed in the absorbent main body 11. That is, the discharge port 62 has an elongated rectangular shape as shown in FIG. 8, and has the same shape as the adhesive application part 12 formed on the absorbent main body 11.

  A pocket 63 and a slot 64 are formed inside the die coater 61. The pocket 63 is a liquid storage space for the coating liquid (adhesive B) extended in the width direction of the die coater 61 (width direction of the sheet-like member 2 ′ being conveyed) with its cross-sectional shape, and the effective extension length ( The length of the pocket 63 in the direction parallel to the width direction of the die coater 61 is normally adjusted to be equal to or slightly longer than the coating width. Supply of the coating liquid to the pocket 63 is performed by a supply pump (not shown) from a supply tank (not shown) that stores the coating liquid. The slot 64 is a flow path of the coating liquid from the pocket 63 to the sheet-like member 2 ′ that is an object to be coated.

  FIG. 9 is a schematic diagram (cross-sectional view) showing an example of the adhesive removing means 70. The adhesive removing means 70 shown in FIG. 9 includes a transfer roll 71 in addition to the backup roll 42. The transfer roll 71 is formed of a metal cylindrical member and rotates around an axis. By applying the transfer roll 71 to the one surface 2a ′ of the sheet-like member 2 ′ being conveyed while rotating in the circumferential direction, it is applied onto the release agent E out of the adhesive B applied to the one surface 2a ′. The adhesive B that is easily peeled off is transferred onto the peripheral surface of the transfer roll 71. A heating device (not shown) such as a heater is built in the transfer roll 71, and the transfer roller 71 can heat the peripheral surface of the roll to a desired temperature by the heating device. The interval between the transfer roll 71 and the backup roll 42 can be arbitrarily set, and the pressure (nip pressure) on the sheet-like member 2 ′ is adjusted by adjusting the interval.

  In order to facilitate transfer of the adhesive to the transfer roll, it is preferable that the roll peripheral surface of the transfer roll 71 has a certain hardness or more, and is formed of a metal such as steel as in the first embodiment. Preferably it is. Further, by adjusting the temperature of the peripheral surface of the transfer roll 71 to a temperature equal to or higher than the softening point (glass transition point) of the adhesive, the transfer of the adhesive can be performed more smoothly.

  A blade 72 is disposed in the circumferential direction of the transfer roll 71 along the roll peripheral surface of the transfer roll 71, and the adhesive B transferred to the roll peripheral surface is scraped off by the blade 72. The blade 72 is preferably made of metal. The roll peripheral surface from which the adhesive B has been scraped off by the blade 72 is used for the transfer of the adhesive B again.

  The pair of pressure rolls 80, 80 pressurizes a laminated body formed by superposing the absorbent main body 11 and the long sheet-like member 2 ′ via the application part of the adhesive B, and thereby the absorbent main body 11. And the sheet-like member 2 ′. The pressure roll 80 is configured, for example, by coating the outer periphery of a metal roll made of cylindrical steel or the like with a resin layer made of silicon rubber or the like, and is rotated around an axis by a driving device (not shown). . The interval between the pair of pressure rolls 80 can be arbitrarily set, and the pressure (nip pressure) on the laminate is adjusted by adjusting the interval.

  In the manufacturing method of the first embodiment, the adhesive region forming means 30 having the above-described configuration is used to apply a release agent to the surface 2a ′ of the sheet-like member 2 ′ (base material) being conveyed, and to apply the adhesive. Each process of application and partial removal of the adhesive is sequentially performed, and finally, an adhesive region P shown in (7) of FIG. 10 is formed. The adhesive region P is transferred to the absorbent main body 11 and becomes the adhesive region of the napkin 1 (region hatched in FIG. 3). Similarly to the adhesive region, the adhesive B The application part 12 and the non-application part 16 to which the adhesive B is not applied have a rectangular shape as a whole. A plurality of adhesion regions P are formed at predetermined intervals in the longitudinal direction (conveying direction) of the sheet-like member 2 ′.

  The adhesion region P is formed by applying the adhesive B only to the application portion formation scheduled portion 12 ′ of the adhesion region formation scheduled region P ′ shown in FIG. The part other than the application part formation scheduled part 12 ′ in the adhesion area formation scheduled area P ′ is a non-application part formation scheduled part 16 ′ to which the adhesive B is not applied, and finally the non-application part 16 in the adhesion area P and It is a site. At the stage shown in FIG. 10 (4), neither the adhesive B nor the release agent E is applied to the one surface 2a 'of the sheet-like member 2'. Further, in FIG. 10 (4), for easy explanation, the application portion formation scheduled portion 12 ′ is indicated by hatching, but such an oblique line (application portion formation scheduled portion 12 ′ is present on the actual surface 2a ′. The mark indicating) is not applied.

  The manufacturing method of the first embodiment is performed as follows. As shown in FIG. 4, first, a vertically formed absorbent main body 11 that is separately formed is supplied to the direction changing device 20 by the conveying means (not shown) with the longitudinal direction L as the conveying direction. The absorptive main body 11 can be manufactured by the 2nd manufacturing method of this invention mentioned later using the surface sheet 13, the back surface sheet 14, and the absorber 15 mentioned above.

  Next, the absorbent main body 11 that has been transported with the longitudinal direction L as the transport direction is rotated by 90 degrees with respect to the transport direction by the direction changing device 20, and the width direction S is transported to the adhesive region forming means 30. Supply. In the adhesive region forming means 30, the absorbent main body 11 is maintained in its transport direction, and the pair of pressure rolls 80 is moved by the pressure roll 80 near the direction changing device 20 of the pair of pressure rolls 80, 80. , 80.

  On the other hand, when the adhesion region forming means 30 is operated in accordance with the conveyance of the absorbent main body 11, the long sheet-like member 2 ′ is pulled toward the pair of pressure rolls 80 and 80 by the conveyance means (not shown). Then, the coating roll 41 (screen mask 44) of the release agent coating means 40 is rotated in the circumferential direction by a driving device (not shown). By pulling the sheet-like member 2 ′, the sheet-like member 2 ′ is continuously drawn out, and the sheet-like member 2 ′ passes through the outer periphery of the expander roll 43 and sequentially moves to the outer periphery of the backup roll 42. . With this movement, the expander roll 43 and the backup roll 42 also rotate.

  Then, the coating roll 41 is peeled from the release agent supply section (opening) 44a to the sheet-like member 2 ′ in a state where it is brought into contact with one surface 2a ′ of the sheet-like member 2 ′ being conveyed while rotating in the circumferential direction. By supplying the agent E, the release agent E is applied to the one surface 2a ′ by the application pattern B2. As a result, the release agent E is applied to the non-application portion formation scheduled portion 16 ′ (the portion not hatched in the adhesion region formation scheduled region P ′) in (4) of FIG. 10, and (5) of FIG. As shown in FIG. In the state shown in FIG. 10 (5), the release agent E is applied only to the non-application part formation scheduled part 16 ′, and the application part formation scheduled part 12 ′ (in FIG. 10 (5), hatched lines are added. The release agent E is not applied to the gap region Q between the adjacent portion) and the adjacent adhesion region formation scheduled regions P ′ and P ′.

  After the release agent E is applied, the adhesive B is applied, but before that, the sheet-like member 2 ′ to which the release agent E is applied may be dried as necessary. A drying process can be performed in accordance with a conventional method using the well-known drying apparatus used for manufacture of coated paper.

  Next, the adhesive B is applied to the entire surface of the adhesion region formation scheduled area P ′ on the one surface 2 a ′ of the sheet-like member 2 ′ by the die coater 61 of the adhesive application means 60 (see (6) in FIG. 10). As a result, the adhesive B is directly applied to the application portion formation scheduled portion 12 ′, and the adhesive B is applied to the non-application portion formation planned portion 16 ′ on the release agent E previously applied. The adhesive B applied on the release agent E is in a state where it can be easily peeled off. In the first embodiment, the adhesive B is intermittently discharged from the discharge port 62 of the die coater 61, whereby a plurality of adhesion region formation scheduled areas P ′, P ′,... The adhesive B is applied only to the adhesive region B, and the adhesive B is not applied to the gap region Q between adjacent adhesive region formation scheduled regions P ′ and P ′. The intermittent discharge of the adhesive can be performed, for example, by controlling the ON / OFF timing of a coating valve (not shown).

  Next, the transfer roll 71 of the adhesive removing means 70 is brought into contact with the adhesion area formation scheduled area P ′ of the sheet-like member 2 ′ being conveyed while rotating in the circumferential direction. As a result, among the adhesive B applied to the entire surface of the adhesion region formation scheduled region P ′, the adhesive B applied to the non-application portion formation scheduled portion 16 ′ (adhesive B applied onto the release agent E). Only) is transferred to the roll peripheral surface of the transfer roll 71. Since the adhesive B applied to the application portion formation scheduled portion 12 ′ is bonded to the sheet-like member 2 ′ with a strong adhesive force inherently, it is not transferred to the transfer roll 71, and the non-application portion is formed. The release agent E applied to the planned portion 16 ′ also remains without being transferred. Thus, excess adhesive B is removed from the sheet-like member 2 ′, and an adhesive region P composed of the application portion 12 and the non-application portion 16 is formed (see (7) in FIG. 10).

  In this adhesive removal process, the nip pressure between the transfer roll 71 and the backup roll 42, the nip width, and the passing speed of the sheet-like member 2 ′, the material and hardness of the transfer roll 71, the type of the release agent E and the adhesive B, etc. There is no particular limitation as long as it is adjusted appropriately according to the above. For example, when the metal transfer roll 71 is used and the above-described release agent and adhesive (hot melt adhesive) are used, the transfer roll 71 and the backup roll 42 are brought into contact with each other, and the nip pressure is preferably 1 to 40 kN / m, more preferably 2 to 20 kN / m, and the passing speed is preferably 15 to 200 m / min, more preferably 60 to 150 m / min.

  Next, the pair of pressure rolls 80 in a state where the absorbent main body 11 and the sheet-like member 2 ′ are overlapped so that the application part of the adhesive B of the sheet-like member 2 ′ faces the absorbent main body 11. , 80, the adhesive B applied to the sheet-like member 2 ′ is transferred to the absorbent main body 11. The nip pressure, the nip width, and the passing speed of the sheet-like member 2 ′ (absorbent main body 11) at this time may be appropriately adjusted according to the type of the adhesive B, the absorbent main body 11 and the like, but are not particularly limited. In the first embodiment for producing a sanitary napkin having the structure as described above, the nip width is preferably 1 to 15 mm, more preferably 2 to 12 mm, and the nip pressure is preferably 1 to 20 kN / m, more preferably 2. 10 kN / m, and the passing speed is preferably 15 to 200 m / min, more preferably 60 to 150 m / min. In this way, the plurality of application parts 12, 12... Are bonded to one side in the width direction of the absorbent main body 11 (the pair of pressure rolls 80, of the both sides in the width direction of the absorbent main body 11). The side part that first passes between 80) and the other side part are sequentially formed, and the absorbent main body 11 and the adhesive application part 12 (adhesive region composed of the adhesive application part 12 and the non-application part 16) are formed. A napkin 1 is produced.

  1st Embodiment is equipped with the process of folding the absorptive main body 11 in which the adhesive application part 12 was formed so that a crease might be attached in the width direction. In this folding step, the absorbent main body 11 is folded so as to have a crease in the width direction by a known folding device (not shown). Specifically, from the unfolded state as shown in FIG. 2 (however, the tab tape 3 does not exist before the folding), as shown in FIG. At the same time, the absorbent main body 11 is folded in three on the surface sheet 13 side so that a crease X is formed in the width direction. In the first embodiment, the folding process is performed before the long sheet-like member 2 ′ is cut for each unit of the napkin 1, and the folding process is performed for each unit of the napkin as shown in FIG. However, the folding method in the first embodiment is substantially the same as that shown in FIG.

  Next, in a long sheet-like member 2 ′ in a folded state in this way, a predetermined joint located on the outer side in the width direction from both side edges of the absorbent main body 11 (napkin 1) is connected to a known joining device such as embossing ( (Not shown). As a result, the sealed side portions 2a, 2a of the sheet-like member 2 in the individually packaged product 10 are formed (see FIG. 1). Next, the edge in the width direction of the folded sheet-like member 2 ′ is fastened with a tab tape 3 that is cut into a predetermined length from a tape roll (not shown) and supplied.

  Next, the long sheet-like member 2 ′ is cut along the width direction of the sheet-like member 2 ′ for each unit of the napkin 1 by a known cutting device (not shown). Thereby, the individual package 10 of the napkin 1 as shown in FIG. 1 is obtained.

Hereinafter, the release agent E and the adhesive B will be described.
As the release agent E, an adhesive B such as a hot melt adhesive that can adhere to the application part of the release agent E with weak adhesive force is used. For example, the release agent E has a lower melting point than that of the sheet-like member 2. Examples include density polyethylene and polyvinyl acetate.

  As adhesive B, the thing similar to what was conventionally used in the said technical field can be especially used without a restriction | limiting. In particular, the hot melt adhesive can be removed not only by the transfer removal from the application portion by the transfer roll described above, but also by cutting (melting) by heat of the application portion, and is easily removed from the application portion. Are preferably used. The removal of the adhesive by this fusing is a method in which the portion where the adhesive is continuously applied is cut by heat that does not damage the member to be coated (sheet-like member 2 ′). The adhesive is removed by the shrinkage of the adhesive due to the heat or movement due to the molten state. Specific methods for removing the adhesive by fusing are as follows: 1) The surface temperature of the portion corresponding to the non-removable portion of the transfer roll 71 on the roll peripheral surface corresponds to the adhesive removal portion on the peripheral surface of the roll. A method of making a temperature difference between predetermined portions of the peripheral surface of the roll so as to be lower than the surface temperature of the portion, 2) the adhesive applied to the application part of the release agent (the non-application part formation scheduled part 16 ′) A method of causing a temperature difference in the adhesive by utilizing the fact that the thickness is thinner than the thickness of the adhesive applied to the application portion formation scheduled portion 12 ′ is exemplified.

  As the hot melt adhesive preferably used as the adhesive B, a base polymer, a tackifier component that is solid at normal temperature, a softener component, and an antioxidant can be used. Base polymers include styrene butadiene rubber, styrene / butadiene / styrene block copolymer, styrene / isoprene / styrene block copolymer, styrene / ethylene / butylene / styrene block copolymer, and styrene / ethylene / propylene / styrene block copolymer. Examples include coalescence. The base polymer is preferably used in the range of 30 to 130 parts by weight, particularly 40 to 120 parts by weight, when the total amount of the tackifier component and the softener component is 100 parts by weight.

As the tackifying component, C ₅ petroleum resins, C ₉ petroleum resins, dicyclopentadiene-based petroleum resins, rosin-based petroleum resins, polyterpene resins, terpene phenol resins, and the like, tackifier as component and the softening agent It is preferably used in the range of 60 to 99 parts by weight, particularly 70 to 95 parts by weight, in 100 parts by weight of the total amount of components.

  Examples of the softener component include process oils having a softening point of 10 ° C. or less and an average molecular weight of 200 to 700, mineral oil, various plasticizers, polybutene, and a liquid tackifier resin. The tackifier component and the softener It is preferably used in the range of 1 to 40 parts by weight, particularly 5 to 30 parts by weight in 100 parts by weight of the total amount of components.

  As the antioxidant, phenolic antioxidants, amine antioxidants, phosphorus antioxidants, benzimidazole antioxidants and the like are used, and the base polymer, the tackifier component, and the softener component are used. When the total amount is 100 parts by weight, it is preferably used in the range of 0.5 to 3 parts by weight.

  The above-described hot melt adhesive (adhesive B) can be applied or transferred at a temperature lower than the melting point of the member to be coated (sheet-like member 2 ') to which the hot melt adhesive is applied. This application / transfer temperature is the temperature at the time of contact between the member to be applied and the hot melt adhesive, and the temperature of the adhesive application means (die coater 61) and the temperature of the hot melt adhesive supply source are: Even at a temperature higher than the melting point of the application member, application or transfer is possible.

  According to the manufacturing method of the absorbent article (sanitary napkin) of the first embodiment, since the adhesive B is applied using the adhesive application method of the present invention using a release agent, the adhesive B Is applied only to a desired location (application portion 12, application portion formation planned portion 12 ') and adhesive to a location (non-application portion 16, non-application portion formation scheduled portion 16') where the adhesive B is not desired to be applied. Intrusion of B can be prevented, and a desired adhesive application pattern can be formed. According to the adhesive application method of the present invention using a release agent, even when a hot melt adhesive, which is difficult to form a desired application pattern in the conventional adhesive application method, is used as the adhesive B. It is possible to form a coating pattern.

  Further, when the back sheet 14 to which the adhesive B is applied has a predetermined liquid permeability and moisture permeability, the penetration of the adhesive B into the non-application part 16 is prevented as described above. Thus, the liquid permeability and moisture permeability of the non-application part 16 are prevented from being lowered, and as a result, an adhesive region having excellent liquid permeability and moisture permeability can be formed. Further, since the method of applying the adhesive B is simply a solid coating on the entire surface of the adhesion region formation scheduled area P ′ of the sheet-like member 2 ′, the adhesive application apparatus can be simplified.

  Hereinafter, other embodiment of the 1st manufacturing method of this invention is described. In the following embodiments, components that are different from the manufacturing method of the first embodiment described above will be mainly described, and similar components will be denoted by the same reference numerals and description thereof will be omitted. The description of the manufacturing method of the first embodiment is appropriately applied to components that are not particularly described.

  FIG. 12 shows a schematic view (cross-sectional view) of the adhesive removing means 70 used in the second embodiment of the first manufacturing method of the present invention. The adhesive removing means 70 of the second embodiment shown in FIG. 12 brings the cleaning tape 73 into contact with the peripheral surface of the transfer roll 71 rotating in the circumferential direction, and the adhesive B transferred to the peripheral surface of the roll is cleaned. The image is transferred onto the tape 73. The cleaning tape 73 is fed out from the state wound in a roll shape toward the transfer roll 71, so that the conveyance direction of the cleaning tape 73 when in contact with the transfer roll 71 coincides with the rotation direction of the transfer roll 71. It is conveyed to. When the cleaning tape 73 is brought into contact with the peripheral surface of the transfer roll 71, the cleaning tape 73 being transported is pressed from the surface opposite to the contact surface with the transfer roll 71 by the pressing rolls 74 and 74. Is pressed into close contact with the peripheral surface of the roll. As a result, the adhesive B on the peripheral surface of the transfer roll 71 is transferred to the cleaning tape 73. The cleaning tape 73 in contact with the transfer roll 71 is sequentially wound and collected in a state where the adhesive B is transferred. On the other hand, the roll peripheral surface of the transfer roll 71 from which the adhesive B has been removed by the cleaning tape 73 is used again for the transfer of the adhesive B. Also by the manufacturing method of the second embodiment having such a configuration, the same effects as those of the above-described first embodiment can be obtained.

  As the cleaning tape 73, for example, a paper tape, a nonwoven fabric, a wiping cloth, or the like can be used.

  The nip pressure between the pressing roll 74 and the transfer roll 71, the nip width, and the passing speed of the cleaning tape 73 may be appropriately adjusted according to the type of the adhesive B and the like, and are not particularly limited. The area of the nip portion is not particularly limited, and the cleaning tape 73 may be brought into surface contact with the transfer roll 71 as shown in FIG. Further, the conveyance direction of the cleaning tape 73 at the time of contact with the transfer roll 71 does not have to be the forward direction that coincides with the rotation direction of the transfer roll 71 as described above, and is the reverse direction that is opposite to the rotation direction. It is good. However, the forward direction of the cleaning tape 73 is preferable. The reason is that scattering due to the deposition of the adhesive B can be prevented by setting the rotation direction to the forward direction. The transfer roll 71 of the second embodiment may have a lower roll peripheral surface hardness than the transfer roll 71 of the first embodiment, and the transfer roll 71 of the second embodiment is only a metal roll. Alternatively, for example, a rubber roll obtained by coating the roll surface of a metal roll with a rubber layer can be used.

  FIG. 13 shows a schematic diagram (cross-sectional view) of the adhesive removing means 70 used in the third embodiment of the first manufacturing method of the present invention. The adhesive removing means 70 of the third embodiment shown in FIG. 13 is spanned between a pair of rotating rolls 75 and 76 arranged at a predetermined interval, and the pair of rotating rolls 75 and 76. And a belt 77 that moves by rotation of 75 and 76. Each of the pair of rotating rolls 75 and 76 is a roll that is formed of a metal cylindrical member and rotates about an axis, and further, the temperature of the roll peripheral surface can be adjusted. Specifically, a heating device (not shown) such as a heater is built in the rotary roll 75 disposed at a position closest to the backup roll 42 out of the pair of rotary rolls 75 and 76. With the apparatus, the rotary roll 75 can warm the temperature of the roll peripheral surface to a desired temperature. A cooling device (not shown) such as a cooler is built in the other rotating roll 76, and the rotating roll 76 can cool the temperature of the peripheral surface of the roll to a desired temperature by the cooling device. The surface of the belt 77 is silicon coated.

  In the third embodiment, the temperature of the roll peripheral surface of one rotary roll 75 of the pair of rotary rolls 75 and 76 is adjusted to a temperature higher than the softening point of the adhesive B, and the other rotary roll 76 Formation of an adhesive region in the sheet-like member 2 ′ that is transporting the belt 77 moving on the roll peripheral surface of one rotating roll 75 in a state where the temperature of the roll peripheral surface is adjusted to a temperature lower than the softening point of the adhesive B It abuts on the planned area P ′. As a result, among the adhesive B applied to the entire surface of the adhesion region formation scheduled region P ′, the adhesive B applied to the non-application portion formation scheduled portion 16 ′ (adhesive B applied onto the release agent E). Only) is transferred to the belt 77. At this time, since the temperature of the roll peripheral surface of the rotary roll 75 is adjusted to a temperature higher than the softening point of the adhesive B, the adhesion on the sheet-like member 2 ′ in contact with the rotary roll 75 via the belt 77 is performed. The melt softening of the agent B is promoted, and as a result, the transfer of the adhesive B from the sheet-like member 2 ′ to the belt 77 is smoothly performed. In this way, excess adhesive B is removed from the sheet-like member 2 '.

  The adhesive B transferred to the belt 77 on the roll peripheral surface of one rotary roll 75 is conveyed to the other rotary roll 76 and scraped off by the blade 72 on the roll peripheral surface of the rotary roll 76. At this time, since the temperature of the roll peripheral surface of the rotary roll 76 is adjusted to a temperature lower than the softening point of the adhesive B as described above, the adhesive B positioned on the rotary roll 76 via the belt 77. As a result, the adhesive 72 is scraped off and removed smoothly by the blade 72. The belt 77 from which the adhesive B has been scraped off by the blade 72 is conveyed again to the rotary roll 75 and used for transferring the adhesive B on the sheet-like member 2 '. Also by the manufacturing method of the third embodiment having such a configuration, the same effects as those of the first embodiment described above can be obtained.

  Next, the 2nd manufacturing method of this invention is demonstrated based on the preferable embodiment. In the following embodiment, components that are different from those of the first embodiment of the first manufacturing method of the present invention described above will be mainly described, and the same components will be denoted by the same reference numerals and description thereof will be omitted. The description of the first embodiment of the first manufacturing method is appropriately applied to components that are not particularly described.

  The 2nd manufacturing method of this invention is a manufacturing method of the absorbent article which has the process of bonding a 1st base material and a 2nd base material with an adhesive agent. The absorbent article manufactured in the present embodiment is an absorbent main body 11 that is an intermediate product of the sanitary napkin 1 manufactured by the first manufacturing method described above. As described above, the absorbent main body 11 includes the top sheet 13, the back sheet 14, and the absorber 15 interposed between the sheets 13 and 14, and between the back sheet 14 and the absorber 15. Are joined by an adhesive. In the present embodiment, the back sheet material 14 ′, which is a material for forming the back sheet 14, corresponds to the first base material, and the absorber 15 corresponds to the second base material. The top sheet 13 is formed from a top sheet material 13 '. The top sheet material 13 ′ is a liquid-permeable sheet, and the back sheet material 14 ′ is a resin film having no fine holes or a resin film having fine holes and having moisture permeability.

  FIG. 14 shows a schematic process diagram of a preferred embodiment of the second production method of the present invention. In the present embodiment, first, the long back sheet material 14 ′ is transported by a transport means (not shown), and the one surface 14a ′ of the back sheet material 14 ′ is subjected to the same procedure as the first manufacturing method described above (the present invention). The adhesive B is applied). That is, each process of applying the release agent E, applying the adhesive B, and partially removing the adhesive B is performed on the one surface 14a ′ of the back sheet material 14 ′ being conveyed using the adhesive region forming means 30. Do it sequentially. Thus, an adhesive region (not shown) having a predetermined pattern composed of the application part and the non-application part of the adhesive B is formed on one surface 14a 'of the back sheet material 14' (first base material).

  Further, the long surface sheet material 13 ′ is conveyed by a conveying means (not shown), and the separately manufactured absorber 15 (second base material) is placed on the surface sheet material 13 ′ being conveyed. Arranged at a predetermined interval in the longitudinal direction (conveying direction) of 13 '. The absorber 15 can be manufactured according to a conventional method using pulp fiber, a water-absorbing polymer, or the like.

  Next, the back sheet material 14 ′ to which the adhesive B is applied and the absorber 15 are placed on the roll peripheral surface of the polymerization roll 80, and the application portion of the adhesive B in the back sheet material 14 ′ faces the absorber 15. Overlay as you do. Thus, the back sheet material 14 ′ (first base material) and the absorber 15 (second base material) are bonded together by the adhesive B.

In this embodiment, after completion of the bonding step, a predetermined portion of the extended portion from the edge of the absorbent body 15 in the laminate of the top sheet material 13 ′ and the back sheet material 14 ′ is publicly known such as embossing. Sealing is performed by a bonding device (not shown).
Next, the laminated body is cut along the width direction of the laminated body for each unit of the absorbent main body 11 by a known cutting device (not shown). Thus, the intended absorbent main body 11 is obtained.

  According to this embodiment, since the adhesive B is applied using the adhesive application method of the present invention using a release agent, the same effects as the first manufacturing method described above are exhibited. In particular, in the present embodiment, when the back sheet material 14 ′ (first base material) to which the adhesive is applied is a moisture permeable sheet, there is a concern that the moisture permeability of the back sheet 14 may be reduced due to the application of the adhesive. Since the adhesive can be applied only to the necessary part (applied part formation scheduled part) by the application method of the present invention described above, it adheres to the part where the adhesive is not planned to be applied (non-applied part forming scheduled part). As a result, an adhesive region having excellent moisture permeability can be formed.

As mentioned above, although this invention was demonstrated based on the preferable embodiment, this invention is not restrict | limited to the said embodiment.
For example, in the first embodiment of the first manufacturing method of the present invention, the release agent E is applied only to the non-application part formation scheduled part 16 'on the one surface 2a' of the sheet-like member 2 '. In addition to 16 ′, the release agent E may be applied to the gap region Q between the adjacent adhesion region formation scheduled regions P ′ and P ′. When the release agent E is applied to the non-applied portion formation scheduled portion 16 ′ and the gap region Q, the adhesive B is not limited to the intermittent application as in the above embodiment, and is continuous over the longitudinal direction of the sheet-like member 2 ′. It is possible to apply it. The application form of the release agent and the adhesive in the embodiment is particularly effective when the adhesion area P is small, whereas the application form including such continuous application of the adhesive is when the adhesion area P is large. It is particularly effective.
In the above-described embodiment, the release agent coating unit 40 is a rotary screen type coating apparatus, but may be a known coating apparatus such as a gravure type coating apparatus.
Moreover, in the said embodiment, although one surface 2a 'of sheet-like member 2' was surface-treated so that the adhesive force with respect to this one surface 2a 'of adhesive B might fall, adhesive B (adhesive application part 12) ) Is not used as a so-called slip stopper, it is not necessary to peel off the sheet-like member 2 adhered to the adhesive application part 12, and thus the surface treatment of such a sheet-like member is unnecessary.

Moreover, although the said embodiment of the 2nd manufacturing method of this invention was bonding of back surface sheet material 14 '(1st base material) and the absorber 15 (2nd base material), A 2nd manufacturing method is not limited to such a combination, For example, it can apply also to the bonding of a surface sheet and an absorber, or the bonding of a second sheet (sublayer sheet) and a surface sheet.
Moreover, although the said embodiment of the 2nd manufacturing method of this invention performs application | coating of the adhesive agent in the procedure similar to 1st Embodiment of the 1st manufacturing method of this invention, it is 2nd of a 1st manufacturing method. You may perform in the same procedure as embodiment and 3rd Embodiment.
Further, in the second embodiment of the second manufacturing method of the present invention, a release agent and an adhesive are sequentially applied to the back sheet material 14 ′ (first base material) on which nothing has been applied in the manufacturing line. However, the release agent is applied in advance to the non-application part formation scheduled part in the back sheet material 14 ′, and the adhesive is used on the production line for the back sheet material 14 ′ to which this release agent is applied in advance. You may make it perform application | coating and the partial removal process of an adhesive agent sequentially.

  Moreover, in the said embodiment, although the sanitary napkin which is an absorptive article used by fixing to underwear was mentioned as one of the application examples of this invention, this invention is applicable similarly to another absorptive article. . For example, the present invention is also applied to panty liners, incontinence liners, incontinence pads, etc., which are absorbent articles that are used by being fixed to underwear like sanitary napkins, or thermal sheets in which a heat generating composition is enclosed in a packaging bag. it can. Examples of the thermal sheet include those described in Japanese Patent Application Laid-Open No. 2006-271963 according to the previous application of the present applicant. The present invention is also applicable to disposable diapers.

It is a perspective view of the individual package of the sanitary napkin as an absorptive article manufactured by a 1st embodiment of the 1st manufacturing method of the present invention. It is a top view which shows the skin contact surface side (surface sheet side) in the expansion | deployment state of the individual packaged goods shown in FIG. It is a top view which shows the non-skin side contact surface (back surface sheet side) of the sanitary napkin in the individual packaged goods shown in FIG. (A) is schematic process drawing of 1st Embodiment of the 1st manufacturing method of this invention, (b) is the intermediate manufacture goods in each of (1)-(3) and (8) shown to (a). FIG. It is the schematic which shows an example of the peeling agent application | coating means shown in FIG. It is a top view which shows a part of surrounding surface of the application | coating roll which comprises the release agent application | coating means shown in FIG. It is the schematic which shows an example of the adhesive agent application means shown in FIG. It is the bottom view which looked at the die-coater shown in FIG. 7 from the discharge outlet side. It is the schematic which shows an example of the adhesive agent removal means shown in FIG. FIG. 5 is a plan view of an intermediate product in each of (4) to (7) shown in FIG. It is a perspective view which shows the process in which the napkin which is an absorbent article is folded with a sheet-like member. It is the schematic which shows an example of the adhesive removal means used by 2nd Embodiment of the 1st manufacturing method of this invention. It is the schematic which shows an example of the adhesive removal means used by 3rd Embodiment of the 1st manufacturing method of this invention. It is a schematic process drawing of one Embodiment of the 2nd manufacturing method of the present invention. It is a top view which shows an example of the adhesion | attachment area | region (application | coating pattern) which can be formed with the application | coating method of the adhesive agent of this invention.

Explanation of symbols

10 Individual packaging of sanitary napkins 1 Sanitary napkins (absorbent articles)
11 Absorbent body 12 Adhesive application part (application part)
12 'application part formation scheduled part 13 surface sheet 14 back sheet 15 absorber 16 non-application part 16' non-application part formation scheduled part 2 sheet-like member 3 tab tape 20 direction changing device 30 adhesion area formation means 2 'long sheet-like Member (base material)
2a ′ One side of a long sheet-like member (base material) (application surface of release agent and adhesive)
40 Release Agent Application Unit 60 Adhesive Application Unit 70 Adhesive Removal Unit 71 Transfer Roll 72 Blade 73 Cleaning Tape 75, 76 Rotating Roll 77 Belt E Release Agent B Adhesive P Adhesive Area P ′ Adhesive Area Formation Schedule Area

Claims (7)

An adhesive application method for forming, on one surface of a base material, an adhesive region composed of an adhesive application part and a non-application part to which the adhesive is not applied,
After applying a release agent to a non-application portion formation planned portion where the non-application portion is formed on one surface of the substrate being transported, the entire surface of the adhesion region formation planned region where the adhesion region is formed on the one surface A method of applying an adhesive, in which an adhesive is applied, and then the adhesive applied to the non-application portion formation planned portion is removed. The removal of the adhesive is performed using an adhesive removing means equipped with a transfer roll,
While rotating the transfer roll in the circumferential direction, the adhesive applied to the non-application part formation scheduled part is brought into contact with the adhesion area formation planned area in the substrate being conveyed, and the roll peripheral surface of the transfer roll The method for applying an adhesive according to claim 1, wherein the adhesive is removed from the substrate by transferring the adhesive onto the substrate.   The adhesive coating method according to claim 2, wherein a blade is disposed in a circumferential direction of the transfer roll along the roll peripheral surface, and the adhesive transferred to the roll peripheral surface is scraped off by the blade.   The adhesive application method according to claim 2, wherein a cleaning tape is brought into contact with the roll peripheral surface of the transfer roll rotating in the circumferential direction, and the adhesive transferred to the roll peripheral surface is transferred to the cleaning tape. The removal of the adhesive is performed using an adhesive removing means, and the adhesive removing means is spanned between a pair of rotating rolls arranged at a predetermined interval and the pair of rotating rolls, and the rotating A belt that moves by the rotation of the roll, and the temperature of the peripheral surface of each of the pair of rotating rolls can be adjusted,
A state in which the temperature of one roll peripheral surface of the pair of rotating rolls is adjusted to a temperature higher than the softening point of the adhesive, and the temperature of the other roll peripheral surface is adjusted to a temperature lower than the softening point. Then, the belt moving on one of the peripheral surfaces of the roll is brought into contact with the adhesion area formation scheduled area in the substrate being conveyed, and the adhesive applied to the non-application area formation scheduled area is applied to the belt To remove the adhesive from the substrate,
The adhesive application method according to claim 1, wherein the adhesive transferred to the belt is removed from the belt on the other circumferential surface of the roll. A method for producing an absorbent article comprising an absorbent main body and an adhesive application part for fixing the absorbent main body to clothing,
After apply | coating an adhesive agent by the coating method in any one of Claims 1-5 to one surface of a elongate base material, the said absorptive main body and this base material are apply | coated of this adhesive agent in this base material. The adhesive applied to the substrate is transferred to the absorbent main body by passing between a pair of pressure rolls in a state of being overlapped so that the portion faces the absorbent main body, and the bonding The manufacturing method of an absorptive article which has the process of forming an agent application part. It is a manufacturing method of an absorptive article which has the process of bonding together the 1st substrate and the 2nd substrate with an adhesive,
After apply | coating the said adhesive agent to the one surface of a said 1st base material with the application | coating method in any one of Claims 1-5, this 1st base material and a said 2nd base material are made into this 1st. The manufacturing method of an absorbent article which has the process of superimposing so that the application part of this adhesive agent in 1 base material may oppose this 2nd base material.

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