WO2002098572A1 - Procede permettant de revetir d'adhesif un fil de caoutchouc et analogue sur une ligne d'enduction et dispositif de revetement d'adhesif - Google Patents

Procede permettant de revetir d'adhesif un fil de caoutchouc et analogue sur une ligne d'enduction et dispositif de revetement d'adhesif Download PDF

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Publication number
WO2002098572A1
WO2002098572A1 PCT/JP2001/004575 JP0104575W WO02098572A1 WO 2002098572 A1 WO2002098572 A1 WO 2002098572A1 JP 0104575 W JP0104575 W JP 0104575W WO 02098572 A1 WO02098572 A1 WO 02098572A1
Authority
WO
WIPO (PCT)
Prior art keywords
rubber
adhesive
slit groove
thread
running
Prior art date
Application number
PCT/JP2001/004575
Other languages
English (en)
Japanese (ja)
Inventor
Shoji Hidaka
Original Assignee
Kabushiki Kaisha Santuuru
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Santuuru filed Critical Kabushiki Kaisha Santuuru
Priority to PCT/JP2001/004575 priority Critical patent/WO2002098572A1/fr
Publication of WO2002098572A1 publication Critical patent/WO2002098572A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
    • A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0241—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to elongated work, e.g. wires, cables, tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2256/00—Wires or fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/20—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wires

Definitions

  • the present invention relates to an application line including a step of applying an adhesive to flat rubber, thread rubber, and the like (for example, a disposable diaper production line including a step of automatically bonding thread rubber to a diaper body), flat rubber, thread rubber, and the like.
  • the present invention relates to an adhesive application method and an adhesive application device.
  • Japanese Patent Application Laid-Open No. 6-2777251 discloses a “disposable diaper” to which an elastic member such as thread rubber, flat rubber or the like is attached, with reference to FIG.
  • a spiral spray coating method is applied to apply a hot melt adhesive to a plurality of thread rubbers or the like.
  • the adhesive area of the hot melt adhesive is small and the adhesive strength is weak, resulting in the necessity of reducing the application amount.
  • the adhesive oozes out of the nonwoven fabric (the mating substrate), and the hot melt adhesive comes into contact with the baby's skin when using disposable diapers.
  • An object of the present invention is to obtain a wide adhesive surface with a small amount of adhesive in order to solve the above-mentioned problems.
  • an application line including a step of applying an adhesive to flat rubber, thread rubber, and the like (for example, a disposable diaper manufacturing line including a step of automatically bonding thread rubber to a diaper body), a flat rubber,
  • An object is to simplify a guide mechanism for a supply position of thread rubber or the like. Disclosure of the invention
  • the first invention of the present application is directed to a rubber running slit groove having a bottom surface, a front surface and a rear surface opened in a coating line advancing direction in a coating line including a step of applying an adhesive to running flat rubber and thread rubber.
  • the rubber running slit groove is supplied to the rubber running slit groove in a state where the rubber thread and the like are tensioned and the rubber running slit groove is horizontally penetrated.
  • Adhesive coating for applying adhesive to thread rubber, etc. characterized by having a guide function to regulate the bonding position of rubber and the like in the cross direction of the base material on the coating line according to the position of the coating line in the cross direction. Provide a way.
  • a coating line including a step of applying an adhesive to a running flat rubber or a thread rubber
  • the rubber is bonded to a rubber running slit groove having a bottom surface, a front surface and a rear surface opened in the application line traveling direction.
  • the rubber thread is supplied in a tensioned state and the rubber running slit groove is horizontally passed through the rubber running slit groove
  • the front and rear surfaces of the rubber run are opened in the traveling direction.
  • the adhesive is supplied to the slit groove, and the supply of the adhesive to the thread rubber and the like is performed in addition to the supply from the upper surface of the rubber traveling slit groove and the supply from at least one side surface of the rubber traveling slit groove.
  • An adhesive may be applied to at least two surfaces of thread rubber or the like passing through the rubber running slit groove. And a method for applying a contact adhesive to thread rubber or the like.
  • the third invention of the present application has an adhesive supply hole at an upper part thereof, an adhesive lateral supply path at an intermediate part thereof, and forms a first distribution mechanism through which the adhesive is supplied from the adhesive supply hole.
  • a coating head main body having a plurality of rubber running slit grooves formed in a vertical direction in a portion thereof; and a plurality of vertical branch flow paths facing the adhesive horizontal supply path of the first distribution mechanism of the coating head main body.
  • Fig. 1 is a front view of a coating head on a disposable diaper manufacturing line.
  • Fig. A shows the case of applying the adhesive to multiple thread rubbers
  • Fig. B shows bonding to a single flat rubber. This shows a case where the present invention is applied to an agent application process.
  • Fig. 2 is a front view of a coating line for manufacturing disposable diapers.
  • Fig. 3 is a plan view of the same.
  • Fig. 4 is a longitudinal sectional view of the coating head.
  • Fig. 5 is also a front view.
  • Fig. 6 is a side view.
  • FIG. 7 is an explanatory view of a first distribution mechanism.
  • FIG. 8 is an explanatory view of a second distribution mechanism.
  • FIG. 9 is a cross-sectional view taken along line SI-S1 of FIG.
  • FIG. 10 is a sectional view taken along line S2-S2 in FIG.
  • FIG. 11 is an explanatory diagram of the flow of the adhesive during the coating operation.
  • FIG. 12 is an explanatory diagram of the flow of the adhesive by the first distribution mechanism and the second distribution mechanism during the coating operation.
  • FIG. 13 is an explanatory view of an adhesive applied state to flat rubber according to the present invention.
  • FIG. 14 is an explanatory view of a state in which an adhesive is applied to the thread rubber in the same manner.
  • FIG. 15 is an illustration of the flow of the adhesive showing the extrusion type valve action for intermittent application.
  • FIG. 16 is an explanatory view of the flow of the adhesive, also showing a suction-type valve action.
  • FIG. 17 is a perspective view of a disposable diaper showing products to which the present invention is applied.
  • Fig. 1 to Fig. 3 show the application line including the step of applying adhesive to flat rubber, thread rubber, etc., and the application of adhesive to the disposable diaper manufacturing line, including the step of automatically adhering thread rubber to the diaper body. 9 shows an embodiment to which the present invention is applied.
  • Elastic body forming point (adhesion point of thread rubber etc.) in the belt-shaped diaper body 22 during transfer of the upper surface of the conveyor 21 of the manufacturing line B, thread rubber etc.
  • a running, A rubber thread A or the like is supplied which is located above the diaper main body 22 and travels in a state where the adhesive application points e thereof are aligned with each other and in a tension state by the tension roller 23 above the band-shaped diaper main body 22.
  • the band-shaped diaper main body 22 is cut, and the thread rubber etc. A is adhered to the band-shaped diaper main body 22 only at the elastic body forming portion E to form the elastic body K. Disposable diapers ”20 are completed.
  • R indicates an upright wall made of an elastic body K formed of thread rubber.
  • the first invention of the present application is carried out in a step of applying an adhesive to thread rubber or the like for supplying A such as flat rubber or thread rubber to which an adhesive is intermittently applied.
  • the dispensing head B supplies adhesive to the rubber running slit groove 10 with the bottom surface, the front surface and the rear surface opened in the dispensing line advancing direction, and penetrates the thread rubber A and the rubber running slit groove 10 in the horizontal direction under tension. Supply it in the state where it was made.
  • a plurality of rubber running slit grooves 10 are provided, and an adhesive is applied to a plurality of thread rubbers A or the like. Based on the positions of the plurality of rubber running slit grooves 10, the mutual distances P1, P2 of the thread rubber A and the positional relationship P3 with the base material (the band-shaped diaper body 22) are regulated, and the rubber running slit grooves are formed. 10 serves as a guide.
  • the rubber running slit groove 10 is made a single piece, and an adhesive is applied to a single thread rubber A or the like. Based on the position of the rubber running slit groove 10, the positional relationship P11 and P12 with the base material (the band-shaped diaper main body 22) is regulated, and the rubber running slit groove 10 functions as a guide.
  • Fig. 4 shows the outline of the device B for applying adhesive to thread rubber and the like
  • 1 is an application head
  • 2 is a valve mechanism
  • 3 is a hot melt supply source.
  • a rubber running slit groove 10 is formed at the lower end of the coating head 1 in a vertical direction, and a member to be bonded such as thread rubber is passed through the rubber running slit groove 10 in a horizontal direction, and passes through the rubber running slit groove 10.
  • the adhesive is applied to the thread rubber etc.
  • the rubber running slit groove 10 is open at the front, the rear, and the bottom.
  • coating head 1 includes head body 1A, distribution plate 1B, and plate holder 1C.
  • the head main body 1A has an adhesive supply hole 11 formed at an upper portion thereof communicating with an adhesive hole 20 of the valve mechanism 2, and a first distribution having an adhesive lateral supply passage 13 at an intermediate portion.
  • a mechanism 12 is formed, and a plurality of rubber running slit grooves 10 are formed in a lower end portion in a vertical direction.
  • the first distributing mechanism 12 communicates the upper adhesive lateral supply path 15 with the adhesive lateral supply path 13 in addition to the adhesive lateral supply path 13.
  • Two (preferably, plural) adhesive vertical supply paths 14 are added to form a loop, and the adhesive is supplied from both ends (both ends and an intermediate position) of the adhesive horizontal supply path 13.
  • the upper adhesive horizontal supply path 15 may be omitted, and the adhesive vertical supply path 14 may be made a single unit, so that the adhesive supply hole 11 and the center of the adhesive horizontal supply path 13 may be communicated.
  • the distributing plate 1B is, as shown in FIG. 8 to FIG. A plurality of vertical dividing passages 17 facing the adhesive horizontal supply passage 13 of the first distribution mechanism 12 of 1A, and a rubber running slit groove 10 of the coating head body 1A which is continuous with the lower end of the vertical dividing passage 17 A second distribution mechanism 16 including an opposing distribution reservoir 18 is formed.
  • the adhesive is supplied from the hot melt supply source 3 via the valve mechanism 2 to the adhesive.
  • the hot melt is applied to the rubber running slit grooves 10 with the front, rear, and bottom open by the intermittent operation of the valve mechanism 2. Supplied.
  • the flow of the hot melt in the adhesive supply hole 11, the first distribution mechanism 12, and the second distribution mechanism 16 in the coating head 1 is as shown in FIG.
  • the hot melt is supplied from at least one side of the rubber running slit groove in addition to the supply from the upper surface of the rubber running slit groove 10, and is supplied with at least two pieces of thread rubber or the like passing through the rubber running slit groove.
  • the adhesive will be applied to the surface.
  • the thread rubber and the like A passing through the rubber running slit groove 10 are supplied.
  • Adhesive will be applied to 3) 123.
  • Fig. 13 shows the case of flat rubber A1
  • Fig. 1 and 4 shows the case of thread rubber A2.
  • the first invention of the present application is directed to a coating line including a step of applying an adhesive to running flat rubber and thread rubber,
  • the rubber running slit groove has a guide function that regulates the adhesive position of rubber in the cross direction of the base material on the coating line by the position in the cross direction of the coating line, thereby simplifying the guide mechanism for the running of thread rubber etc.
  • the thread rubber or the like to which the adhesive is intermittently applied can guide the running of the thread rubber or the like without contacting the applied adhesive.
  • the adhesive when the adhesive is applied to the running flat rubber and thread rubber, a wide adhesive surface can be obtained with a small amount, and excessive adhesion to a product to which thread rubber or the like is adhered. It has the effect of increasing the commercial value by eliminating residual agents.
  • the method of applying an adhesive to thread rubber and the like and the adhesive applying apparatus according to the present invention are applied to an application line including a step of applying an adhesive to flat rubber, thread rubber, and the like (for example, a thread is attached to a diaper body). It is suitable for use as a means for applying adhesive to flat rubber, thread rubber, etc. in disposable diaper production lines that include a process for automatically bonding rubber.

Abstract

La présente invention est caractérisée, en premier lieu, par une ligne d'enduction qui permet de revêtir d'adhésif un fil ou un ruban de caoutchouc en mouvement, l'adhésif étant distribué dans une fente de circulation de caoutchouc formée au fond, à l'avant et à l'arrière de la ligne d'enduction, dans le sens de marche vers l'avant, et est caractérisée par le fait que ladite fente de circulation de caoutchouc possède une fonction de guide limitant la position d'adhésion du caoutchouc et analogue dans le sens latéral de la base de la ligne d'enduction. En deuxième lieu, l'invention est caractérisée en ce que l'adhésif est distribué non seulement depuis la face supérieure de la fente de circulation de caoutchouc, mais aussi depuis au moins une face latérale de la fente de circulation de caoutchouc, de façon qu'au moins deux faces du fil de caoutchouc et analogue circulant à travers la fente de circulation de caoutchouc sont revêtues d'adhésif. L'invention concerne en troisième lieu un appareil permettant de revêtir d'adhésif un fil de caoutchouc et analogue, lequel appareil est caractérisé par un premier mécanisme de distribution et par un second mécanisme de distribution, le second mécanisme de distribution comprenant un passage vertical séparateur de flux qui fait face à un passage latéral de distribution d'adhésif du premier mécanisme de distribution, et par un réservoir de distribution placé en continu par rapport à l'extrémité inférieure du passage vertical séparateur de flux et faisant face à la fente de circulation de caoutchouc, lequel appareil permet de revêtir d'adhésif trois faces d'un fil de caoutchouc et analogue circulant dans la fente de circulation de caoutchouc.
PCT/JP2001/004575 2001-05-30 2001-05-30 Procede permettant de revetir d'adhesif un fil de caoutchouc et analogue sur une ligne d'enduction et dispositif de revetement d'adhesif WO2002098572A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/004575 WO2002098572A1 (fr) 2001-05-30 2001-05-30 Procede permettant de revetir d'adhesif un fil de caoutchouc et analogue sur une ligne d'enduction et dispositif de revetement d'adhesif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/004575 WO2002098572A1 (fr) 2001-05-30 2001-05-30 Procede permettant de revetir d'adhesif un fil de caoutchouc et analogue sur une ligne d'enduction et dispositif de revetement d'adhesif

Publications (1)

Publication Number Publication Date
WO2002098572A1 true WO2002098572A1 (fr) 2002-12-12

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PCT/JP2001/004575 WO2002098572A1 (fr) 2001-05-30 2001-05-30 Procede permettant de revetir d'adhesif un fil de caoutchouc et analogue sur une ligne d'enduction et dispositif de revetement d'adhesif

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2142309A1 (fr) * 2007-04-03 2010-01-13 Nordson Corporation Élément de protection et ensemble buse configuré pour résister à l'usure
WO2012142028A1 (fr) * 2011-04-11 2012-10-18 Nordson Corporation Système, buse, et méthode de revêtement de fibres élastiques
US9034425B2 (en) 2012-04-11 2015-05-19 Nordson Corporation Method and apparatus for applying adhesive on an elastic strand in a personal disposable hygiene product
US9682392B2 (en) 2012-04-11 2017-06-20 Nordson Corporation Method for applying varying amounts or types of adhesive on an elastic strand

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542979A1 (fr) * 1983-03-25 1984-09-28 Boussac Saint Freres Bsf Procede de fabrication en continu de couches-culottes a jeter et couches-culottes obtenues
US4626305A (en) * 1982-04-14 1986-12-02 Uni-Charm Corporation Disposable diaper and method for incorporation of elastic member into such diaper
JPS6345867B2 (fr) * 1982-10-29 1988-09-12 Kinugawa Rubber Ind

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626305A (en) * 1982-04-14 1986-12-02 Uni-Charm Corporation Disposable diaper and method for incorporation of elastic member into such diaper
JPS6345867B2 (fr) * 1982-10-29 1988-09-12 Kinugawa Rubber Ind
FR2542979A1 (fr) * 1983-03-25 1984-09-28 Boussac Saint Freres Bsf Procede de fabrication en continu de couches-culottes a jeter et couches-culottes obtenues

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2142309A1 (fr) * 2007-04-03 2010-01-13 Nordson Corporation Élément de protection et ensemble buse configuré pour résister à l'usure
EP2142309A4 (fr) * 2007-04-03 2010-04-28 Nordson Corp Élément de protection et ensemble buse configuré pour résister à l'usure
US9168554B2 (en) 2011-04-11 2015-10-27 Nordson Corporation System, nozzle, and method for coating elastic strands
CN103459047A (zh) * 2011-04-11 2013-12-18 诺信公司 用于涂覆弹性绞合线的系统、喷嘴和方法
WO2012142028A1 (fr) * 2011-04-11 2012-10-18 Nordson Corporation Système, buse, et méthode de revêtement de fibres élastiques
EP3138634A1 (fr) * 2011-04-11 2017-03-08 Nordson Corporation Système, buse et procédé de revêtement de brins élastiques
US10046352B2 (en) 2011-04-11 2018-08-14 Nordson Corporation System, nozzle and method for coating elastic strands
US10124362B2 (en) 2011-04-11 2018-11-13 Nordson Corporation System, nozzle and method for coating elastic strands
US10807114B2 (en) 2011-04-11 2020-10-20 Nordson Corporation System, nozzle and method for coating elastic strands
US9034425B2 (en) 2012-04-11 2015-05-19 Nordson Corporation Method and apparatus for applying adhesive on an elastic strand in a personal disposable hygiene product
US9067394B2 (en) 2012-04-11 2015-06-30 Nordson Corporation Method for applying adhesive on an elastic strand in assembly of a personal disposable hygiene product
US9682392B2 (en) 2012-04-11 2017-06-20 Nordson Corporation Method for applying varying amounts or types of adhesive on an elastic strand
US9907705B2 (en) 2012-04-11 2018-03-06 Nordson Corporation Dispensing apparatus for applying adhesive on an elastic strand in assembly of a personal disposable hygiene product
US9962298B2 (en) 2012-04-11 2018-05-08 Nordson Corporation Dispensing apparatus for applying adhesive on an elastic strand in a personal disposable hygiene product

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