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WO2001028904A1 - Procede et dispositif pour faire passer des agglomeres stratifies adhesifs entre une voie de distribution et une voie acceptrice - Google Patents

Procede et dispositif pour faire passer des agglomeres stratifies adhesifs entre une voie de distribution et une voie acceptrice Download PDF

Info

Publication number
WO2001028904A1
WO2001028904A1 PCT/EP2000/009802 EP0009802W WO0128904A1 WO 2001028904 A1 WO2001028904 A1 WO 2001028904A1 EP 0009802 W EP0009802 W EP 0009802W WO 0128904 A1 WO0128904 A1 WO 0128904A1
Authority
WO
WIPO (PCT)
Prior art keywords
acceptor
web
speed
dispensing
vector
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2000/009802
Other languages
German (de)
English (en)
Inventor
Christian Von Falkenhausen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LTS Lohmann Therapie Systeme AG
Original Assignee
LTS Lohmann Therapie Systeme AG
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
Priority claimed from DE19957162A external-priority patent/DE19957162A1/de
Application filed by LTS Lohmann Therapie Systeme AG filed Critical LTS Lohmann Therapie Systeme AG
Publication of WO2001028904A1 publication Critical patent/WO2001028904A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/0006—Removing backing sheets
    • 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
    • A61F13/02—Adhesive bandages or dressings
    • A61F13/0276—Apparatus or processes for manufacturing adhesive dressings or bandages
    • A61F13/0279—Apparatus or processes for manufacturing adhesive dressings or bandages by attaching individual patches on moving webs
    • 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
    • A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A61F13/15642—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres by depositing continuous layers or pads of fibrous material on single sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip
    • B65C9/1869—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred directly from the backing strip onto the article

Definitions

  • the invention relates to a device and a method for dispensing adhesive laminates from a dispensing web to an acceptor web, comprising a dispensing web that conveys the laminates to be dispensed and can be guided around a dispensing edge, and an acceptor web that is provided for receiving the laminates with possibly increased mutual distances.
  • this operating mode can be found in DE 42 32 279 Cl. It relates to a transfer process for the production of transdermal therapeutic systems, the active substance-containing layer initially being in the form of a laminate with a carrier layer and optionally further auxiliary and / or protective layers or the like as a strip-shaped web and then alone or in combination with at least one another layer is transferred in sections in the middle to a second wider web, characterized in that the strip-shaped web and the second web are moved forward step by step with different movement and rest phases and / or different step lengths and / or different speeds, and in each case in the rest phase of the trains intermittently in the same device, the section-wise division of the active substance-containing layer and optionally one or more further layers with the exception of the carrier layer transverse to the web direction into user-sized active substance-containing sections on the e second web with deduction of the carrier film, preferably at equal intervals, by means of a web direction back and forth transfer device is made.
  • the invention is based on the object of specifying a device and a dispensing method which transfers the laminates without tension and in particular is sufficient for continuous operation.
  • the object is achieved by a device for dispensing individual adhesive die-cuts, which contains a donation sheet which lies in a donation sheet plane and can transport and deliver individual adhesive die-cut pieces in the direction of a dispensing edge, and also contains an acceptor sheet which lies in an acceptor level and individual ones can pick up and transport adhesive die cuts. Furthermore, in this device the vector V SP standing perpendicularly on the donor path plane and the vector V ⁇ standing perpendicularly on the acceptor path plane lie in a plane which is perpendicular to the donor path plane and perpendicular to the acceptor path plane.
  • the device is characterized in that the speed vector a sp , the direction and speed of the transport of the individual adhesive die cuts on the dispensing path and the speed vector a ⁇ , which describes the direction and the speed of the transport of the individual adhesive die-cuts on the acceptor path, are chosen such that la ⁇ l «cos ⁇ is less than or equal to the magnitude of the speed vector a is 5p .
  • the method for dispensing individual adhesive die-cuts is from a donation track that lies in a donation track level to an acceptor track that is in an acceptor track level, the vector V sp perpendicular to the donor track level and the vector standing perpendicular to the acceptor track level V ⁇ lie in a plane that is perpendicular to the donor track level and perpendicular to the acceptor track level, characterized in that the individual adhesive die-cuts are transported in the direction of a dispensing edge and transferred to the acceptor track, with the speed vector a sp , the direction and the speed of the individual adhesive die cuts on the dispensing path and the speed vector a ⁇ , which describes the direction and the speed of the individual adhesive die cuts on the acceptor path, are chosen such that cos ⁇ is less than or equal to the magnitude of the speed vector a sp .
  • the transfer of adhesive systems from a moving donor web to another moving acceptor web works stress-free if and only if the speed of the donor web a SP is synchronized with the speed of the acceptor web a ⁇ (
  • ) 0. This is the only way to compensate for the gain in space of the acceptor web by the loss of space in the donor web, so that an adhesive system can be transferred without tension.
  • the transfer of adhesive systems from a slow to a fast moving web does not function without tension if the amount of the donor web speed a sp is smaller than that of the acceptor web a ⁇ : (
  • the acceptor web requests material that the donor web cannot deliver at the same time.
  • the result is that the donated system is torn off the donor web.
  • a carrier web change therefore only works if the web speeds are identical, that is to say if the speed of the system to be transmitted matches that of the acceptor web.
  • the speed is a vectorial quantity and has magnitude and direction.
  • the speed vector a sp which describes the direction and the speed of the transport of the individual adhesive die cuts on the dispensing path
  • the speed vector a M which describes the direction and the speed of the transport of the individual adhesive Die cuts on the acceptor path are chosen such that la ⁇ l «cos ⁇ is less than or equal to the magnitude of the speed vector
  • FIG. 2 shows such a case that the speed vector of the acceptor path a ⁇ is greater than the speed vector of the donor path a SP .
  • cos ⁇ corresponds to the projection of the vector a ⁇ onto the vector a SP .
  • in this case is the same size as the vector a sp .
  • the angle ⁇ between the vector of the donor web speed a SP and the vector of the acceptor web speed a ⁇ - hereinafter referred to as the donor angle - is in the foreground.
  • a certain lower dispensing angle is required to meet the condition
  • Figures 3 and 4 show variants in which the condition mentioned is fulfilled. Here, too, it is possible to donate plasters without tension to a faster-running acceptance path.
  • the essence of the invention thus relates to an alignment of the donor web and acceptor web at a donor angle ⁇ , which is selected such that the amount of a vector of the donor web speed
  • adhesive laminates can be transferred in continuous or discontinuous operation and without harmful voltages in the laminate to a faster moving acceptor path without any additional aids.
  • angle ⁇ is at least 5 degrees. It can preferably be 20 to 180 degrees, particularly preferably 90 to 180 degrees.
  • Another embodiment of the device according to the invention is characterized in that a gas supply unit is provided for deflecting the adhesive laminate.
  • a method for dispensing adhesive laminates from a slowly moving dispensing web to an acceptor web moving faster relative to it is characterized in that the resulting web speed difference is caused by len the receiving surface is offset at an angle to the donor track transport surface.
  • One embodiment of the method provides that the angle is selected so that the adhesive laminate automatically adheres to the receiving surface.
  • a further embodiment of the method according to the invention is characterized in that, with the aid of the gas flow from a gas supply unit, the adhesive surface of the laminate peeling off over the dispensing edge is applied away from the dispensing edge to the receiving surface of the acceptor web.
  • the gas flow can be provided continuously and / or pulsed.
  • the method according to the invention provides that the position of the adhesive laminate is checked with the aid of a measuring system.
  • the measure can be provided for the speed of the donation and / or acceptor path to be checked with the aid of the measuring system.
  • FIG. 5 shows a side view of a donor web and an acceptor web when transferring an adhesive laminate when tension arises as a result of different web speeds of transport surfaces arranged one behind the other;
  • FIG. 7 shows another type of transfer according to the invention of a laminate of dispensing and accepting webs moving at different speeds with the assistance of a gas flow.
  • FIG.5 shows a non-inventive transfer of adhesive laminate 8 from a slow moving dispensing web 1 for receiving with enlarged mutual intervals on a Akzeptorbahn 2.
  • the donor web 1 a transport surface 1 ⁇ and the Akzeptorbahn 2, a recording surface 2 'which in different speeds are aligned in parallel.
  • the dispensing web 1 is guided around an dispensing edge 5 at an acute angle, as is known per se.
  • the acceptor web tries to tear off the laminate 8 adhering to it from the dispensing web 1, which results in a tensile stress 4 between the webs, which can lead to considerable damage to the laminate 8.
  • a sp is the vector which represents the direction and speed of the donor path (1) and a ⁇ is the vector which represents the direction and speed of the acceptor path (2).
  • the angle (7) together with the dispensing angle ⁇ , ie the angle enclosed by the two vectors, is 180 °. As can be seen in the figure, the angle (7) is greater than 90 °. The dispensing angle ⁇ is therefore less than 90 °.
  • the adhesive laminate 8 is provided by means of the dispensing web 1 and peeled off at a dispensing edge 5. Because the dispensing angle ⁇ is greater than 0 °, the adhesive underside of the laminate can stick to that in this embodiment adhere vertically extending acceptor web 2 and are pressed by the pressure roller 6 '. Dispensing angle ⁇ and web speeds of the two webs 1, 2 are coordinated with one another in such a way that the laminate 8 is pulled off through the acceptor web 2 without tension occurring in the adhesive system.
  • An advantage of the embodiment according to the invention is the automatic adhesion of the laminate 8 to the acceptor web 2 due to its pressure-sensitive adhesive underside and due to the dispensing angle ⁇ which is greater than 0 °.
  • FIG. 7 shows another embodiment of the invention.
  • the dispensing angle ⁇ between a SP and a b is greater than 90 °.
  • the project xon of the vector of the acceptor path speed v pro; j consequently has a negative sign, which means that the condition for all path speeds is fulfilled.
  • the dispensing web 1 is provided via the deflection roller 6 and the dispensing edge 5 and peeled off from the carrier web 1. Because here the angle (7) (ie the complementary angle to the dispensing angle ⁇ ) is less than 90 °, the adhesive underside of the laminate 8 cannot automatically adhere to the acceptor web 2.
  • the peeling laminate 8 must be u-steered by a suitable device in such a way that the adhesive underside is adhered to the acceptor web.
  • this device can be represented by an air flow from a gas supply unit 9, which flows against the front edge of the laminate and causes the required bending of the laminate 8 by the flow energy.
  • This air flow 9 can be applied over the entire width of the web through nozzles, or can also act "in focus" only on a specific area of the laminate. It can be advantageous to apply the high-energy gas flow in a pulsed manner, that is, to apply a flow ginn and define a flow end. If, for example, the flow impulse is only applied during the peeling phase, only the front edge of the laminate is raised until it adheres to the acceptor web 2. The acceptor web 2 then automatically pulls the rest of the laminate 8 off the dispensing web 1.
  • a special gas e.g. nitrogen or helium
  • a gas of a certain temperature e.g. -100 ° C to 250 ° C to use.
  • the air flow is operated in a pulsed manner, it may be necessary to select a specific pulse phase relative to the position of the laminate 8 on the dispensing web 1 or on the acceptor web 2.
  • the control of this phase can be determined as a fixed setting using various parameters, for example by coupling to the angular position of a drive shaft. It is advisable to couple the pulse phase to the relative position of the laminate. This can be detected by optical, mechanical or electronic sensors or combinations thereof.
  • An intermediate control then switches a fast-switching gas valve, as is known to the person skilled in the art.
  • the gas pulse preferably has a duration of 1 to 90% of the donation cycle, particularly preferably 10 to 40%.
  • the gas pulse begins e.g.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Coating Apparatus (AREA)

Abstract

L'invention concerne un dispositif permettant de distribuer en continu des systèmes stratifiés adhésifs. Ce dispositif permet de transférer, aussi bien en mode de fabrication cadencé qu'en mode continu, par le guidage non parallèle d'une voie de distribution et d'une voie acceptrice, des systèmes stratifiés adhésifs entre une voie de distribution déplacée lentement et une voie acceptrice déplacée rapidement, sans que les systèmes concernés ne soient soumis à des contraintes de traction. L'invention permet à ce titre, en mode de fabrication continu, d'économiser des matériaux, par matriçage étroit et néanmoins de mettre à disposition des supports terminaux en saillie.
PCT/EP2000/009802 1999-10-19 2000-10-06 Procede et dispositif pour faire passer des agglomeres stratifies adhesifs entre une voie de distribution et une voie acceptrice Ceased WO2001028904A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19950236.6 1999-10-19
DE19950236 1999-10-19
DE19957162A DE19957162A1 (de) 1999-10-19 1999-11-27 Vorrichtung und Verfahren zum Spenden klebender Laminate von einer Spendebahn auf eine Akzeptorbahn
DE19957162.7 1999-11-27

Publications (1)

Publication Number Publication Date
WO2001028904A1 true WO2001028904A1 (fr) 2001-04-26

Family

ID=26055300

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/009802 Ceased WO2001028904A1 (fr) 1999-10-19 2000-10-06 Procede et dispositif pour faire passer des agglomeres stratifies adhesifs entre une voie de distribution et une voie acceptrice

Country Status (1)

Country Link
WO (1) WO2001028904A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003061635A3 (fr) * 2002-01-25 2004-03-11 Lohmann Therapie Syst Lts Procede et dispositif de production de produits sous forme de bande continue
WO2013017686A1 (fr) * 2011-08-03 2013-02-07 Acino Ag Changeur de feuille de protection
US8608889B2 (en) 2005-06-10 2013-12-17 3M Innovative Properties Company Method for handling adhesive laminate sections
EP3206873B1 (fr) 2014-10-14 2018-12-12 Bayer Pharma Aktiengesellschaft Dispositif de chevauchement

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869328A (en) * 1972-03-16 1975-03-04 Instance Ltd David J Reeling self-adhesive labels
US4294644A (en) * 1980-01-30 1981-10-13 Datafile Limited Servo motor control labeller
EP0319946A2 (fr) * 1987-12-07 1989-06-14 Sun-Tec Co., Ltd. Dispositif d'étiquetage
US5250134A (en) * 1989-01-19 1993-10-05 Philip Morris, Inc. System and method for forming an overwrap web provided with inserts
DE4406976C1 (de) * 1994-03-03 1995-06-22 Lohmann Therapie Syst Lts Verfahren zur Übertragung von einseitig selbstklebenden Abschnitten von einer bewegbaren ersten Bahn auf eine bewegbare zweite Bahn sowie Verwendung des Verfahrens
US5863628A (en) * 1996-08-08 1999-01-26 Inprint Systems, Inc. Self-adhesive labels and manufacture thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869328A (en) * 1972-03-16 1975-03-04 Instance Ltd David J Reeling self-adhesive labels
US4294644A (en) * 1980-01-30 1981-10-13 Datafile Limited Servo motor control labeller
EP0319946A2 (fr) * 1987-12-07 1989-06-14 Sun-Tec Co., Ltd. Dispositif d'étiquetage
US5250134A (en) * 1989-01-19 1993-10-05 Philip Morris, Inc. System and method for forming an overwrap web provided with inserts
DE4406976C1 (de) * 1994-03-03 1995-06-22 Lohmann Therapie Syst Lts Verfahren zur Übertragung von einseitig selbstklebenden Abschnitten von einer bewegbaren ersten Bahn auf eine bewegbare zweite Bahn sowie Verwendung des Verfahrens
US5863628A (en) * 1996-08-08 1999-01-26 Inprint Systems, Inc. Self-adhesive labels and manufacture thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003061635A3 (fr) * 2002-01-25 2004-03-11 Lohmann Therapie Syst Lts Procede et dispositif de production de produits sous forme de bande continue
US7232500B2 (en) 2002-01-25 2007-06-19 Lts Lohmann Therapie-Systeme Ag Method and device for producing products in web form
US8608889B2 (en) 2005-06-10 2013-12-17 3M Innovative Properties Company Method for handling adhesive laminate sections
US9289968B2 (en) 2005-06-10 2016-03-22 3M Innovative Properties Company Method for handling adhesive laminate sections
WO2013017686A1 (fr) * 2011-08-03 2013-02-07 Acino Ag Changeur de feuille de protection
EP3206873B1 (fr) 2014-10-14 2018-12-12 Bayer Pharma Aktiengesellschaft Dispositif de chevauchement

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