EP0384278B1 - Procédé et dispositif pour appliquer des substances liquides, pâteuses ou plastiques sur un substrat - Google Patents

Procédé et dispositif pour appliquer des substances liquides, pâteuses ou plastiques sur un substrat Download PDF

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Publication number
EP0384278B1
EP0384278B1 EP90102857A EP90102857A EP0384278B1 EP 0384278 B1 EP0384278 B1 EP 0384278B1 EP 90102857 A EP90102857 A EP 90102857A EP 90102857 A EP90102857 A EP 90102857A EP 0384278 B1 EP0384278 B1 EP 0384278B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
substrate
coating
substance
coated substrate
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.)
Expired - Lifetime
Application number
EP90102857A
Other languages
German (de)
English (en)
Other versions
EP0384278A3 (fr
EP0384278A2 (fr
Inventor
Volker Ludwig
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.)
Zweckform Buero Produkte GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0384278A2 publication Critical patent/EP0384278A2/fr
Publication of EP0384278A3 publication Critical patent/EP0384278A3/fr
Application granted granted Critical
Publication of EP0384278B1 publication Critical patent/EP0384278B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/003—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating incorporating means for heating or cooling the liquid or other fluent material
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/10—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the liquid or other fluent material being supplied from inside the roller
    • 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
    • B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
    • 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
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0831—Machines for printing webs
    • B41F15/0836—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts

Definitions

  • the invention relates to a method for applying liquid, pasty or plastic substances, in particular thermoplastics, to a substrate, the substance being melted, heated and applied to the substrate through an opening gap of a coating head and through a perforated cylinder, which is then removed from the substrate Cylinder is lifted off, as well as a device for this.
  • Such a device is known for example from DE-A-36 38 307 corresponding to WO 88/03442.
  • WO 88/03442 it is provided for this that the coating head itself is heated and that further adjustable ones are provided around the coating head Heating devices are provided which act on the metal cylinder with heat from the inside.
  • a printing unit for an offset rotary printing press is also known from DE-U-33 13 088.
  • Plate cylinders are heated by heating fluid or resistance heating is provided in one cylinder.
  • two slip rings are provided on a shaft section of the plate cylinder, to each of which a power supply line, which leads to resistance heating, is placed.
  • the slip rings and the power supply line are insulated from each other and from the cylinder.
  • the object of the present invention is to show further improvements in the application of the molten substance to the substrate and to have a favorable influence on the coating quality.
  • the cylinder is connected to an energy source and is itself designed as a heat source for the substance.
  • the cylinder which serves as a template for the coating, was at most irradiated with heat from outside or inside.
  • the basic idea of the present invention is to design the cylinder itself as a heat source, it preferably being connected to a power source and thereby serving as resistance heating. As a result, the heating of the cylinder can be controlled much more precisely, so that the effects of the heating of the cylinder on the coating itself can also be regulated.
  • a sliding contact is preferably used to connect the metal cylinder to the power source.
  • the invention also covers the additional idea that after the coated substrate has been lifted off the cylinder itself, the threads between the coating and the cylinder are removed. On the one hand, this can be done mechanically, for example by cutting the threads.
  • preference is given to radiation for example thermal radiation, which, in whatever form, is introduced or radiated into the region between the cylinder and the coated substrate.
  • a laser source which removes the threads without further difficulties appears to be particularly suitable here.
  • the laser also has the advantage, when it strikes the coated substrate, that it melts the surface of the coating drops and cross-links them better. This also significantly improves the quality of the coating.
  • a cylindrical lens which generates a linear focus, can also be used to remove the threads.
  • the coating of the coated substrate with an additional material web takes place only subsequently to the coating of the substrate, heat then having to be supplied to the coated substrate or the coating substance in order for it to be effective in connecting the material webs.
  • the present invention also encompasses the idea that the coated substrate is covered with the material web immediately after it has been lifted off the cylinder, so that an additional operation of reheating or keeping warm is saved. For this purpose, it should prove to be most advantageous if the lifting roller itself is assigned a corresponding calender for feeding the material web.
  • this shows a schematic representation of a device according to the invention for applying liquid, plastic or pasty substances to a substrate, partly as a block diagram, partly in cross section.
  • a substrate 1 to be coated runs into a coating gap 2 from a supply roller (not shown in more detail).
  • This coating gap 2 is formed by a perforated cylinder 3, in particular a metal cylinder, and a counter-pressure roller 4.
  • the counter-pressure roller 4 is preferably made of elastic material.
  • the distance between the axis of rotation A of the counter-pressure roller 4 and the axis of rotation B of the cylinder 3 is smaller than the sum of the radii of the cylinder 3 and the counter-pressure roller 4.
  • the elastic counter-pressure roller 4 is deformed in the region of the coating gap 2 by the pressure of the cylinder 3. This deformation is of course also present if, in the narrower sense, no coating gap is formed between cylinder 3 and roller 4 without a substrate.
  • a coating head 5 presses against the inside surface 6 of the cylinder 3 from the inside of the cylinder 3.
  • a contact surface 8 is formed around an opening gap 7 of the coating head 5 on both sides of the opening gap 7, this contact surface 8 having a radius r 1, which is larger than the radius r of the cylinder 3.
  • the substrate 1 After the coating gap 2, the substrate 1 still runs a certain distance on the cylinder 3, then lifts off and loops around a roller 9.
  • the coating head 5 should be able to be subjected to heat by heating elements 10, this exposure being controlled by a control unit 11. Furthermore, a main chamber 12 is connected upstream of the orifice gap 7 in the coating head 5 and is connected via a corresponding connection channel 13 or supply line 14 to a source for molten substance (not shown). A 3-way valve 15 can be switched into line 14, via which line 14 is alternately connected to the source of coating substance or to a vacuum pump 16.
  • the cylinder 3 itself becomes a heat source.
  • the cylinder 3 becomes a resistor that heats itself through the connection.
  • the connection values should be around 2-10 volts and 700-900 A.
  • Slip contacts 18, which are only shown schematically, are suitable for transmitting the electrical energy. Appropriate insulation should then be provided towards the coating head 5 in the area of the contact surface 8.
  • the design of the cylinder 3 as an independent heat source has significant advantages in terms of quality, for example of the applied spot coating. At the points there are hardly any tails protruding upwards, as was the case with the coating processes known to date.
  • the coating substance Because of the mouth area of the coating head (no squeegee), the coating substance needs to have a lower moisture content. This is then evaporated faster and more completely by the heated cylinder, so that the liquid content of the substance can be drastically reduced. That is, the coating substance is already "baked" to a certain extent, which also increases the quality of the coating.
  • the area between cylinder 3 and roller 9 is associated with a device 19 for removing threads, which is only indicated schematically.
  • This device 19 can be designed mechanically, but it then has considerable disadvantages.
  • the "thread cutting" should preferably be done by heat, with every conceivable heat source being intended to be encompassed by the inventive concept.
  • a laser beam will preferably be used as a special heat source.
  • the absorption spectrum of this laser beam should correspond approximately to the emission spectrum of the coating substance, whereby the substance is also changed and influenced by the laser beam, i.e. in particular is networked. This in turn can increase the adhesive strength, the point is held together like a net and does not flow apart.
  • the roller 9 is to be followed by a heat zone 20 which is also only shown schematically.
  • a heat zone 20 which is also only shown schematically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Claims (9)

  1. Procédé pour appliquer des produits liquides, pâteux ou plastiques, notamment des matières thermoplastiques sur un support (1), le produit, fondu, chauffé étant appliqué à travers une embouchure en forme de fente (7) d'une tête d'alimentation (5) et à travers un cylindre perforé (3) sur le support (1) qui est dégagé par rapport au cylindre (3),
    caractérisé en ce que le cylindre (3) est relié à une source d'énergie et est lui-même réalisé comme source de chaleur pour le produit.
  2. Procédé selon la revendication 1, caractérisé en ce qu'après dégagement du support (1), muni de son revêtement, par rapport au cylindre (3), on enlève les fils entre le revêtement et le cylindre (3).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on fait passer le support (1), revêtu, à travers une zone chaude (20) après son dégagement du cylindre (3).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'on relie le support, muni de son revêtement, à une bande de matière, immédiatement après son dégagement du cylindre (3).
  5. Procédé selon au moins l'une des revendications 1 à 4, caractérisé en ce qu'on fait le vide dans les perforations du cylindre (3) avant le passage de l'embouchure en forme de fente (7).
  6. Dispositif pour appliquer des produits liquides, pâteux ou plastiques, notamment des matières thermoplastiques, sur un support (1) à l'aide d'une installation pour fondre ces substances et d'une tête d'alimentation (5) pour transférer les produits fondus sur le support (1) à travers un cylindre perforé (3) qui constitue avec un cylindre de contre-pression (4), un intervalle d'alimentation (8) et le produit (1) est dégagé du cylindre (9) ou analogue après l'avoir entouré partiellement, dispositif caractérisé en ce que le cylindre est relié directement à une source de courant (17).
  7. Dispositif selon la revendication 6, caractérisé en ce que le cylindre (3) est relié à la source de courant (17) par l'intermédiaire de contacts de glissement (18).
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce qu'une installation (19) prévue pour éliminer les fils est disposée dans la zone de dégagement du support (1) muni de son revêtement, par rapport au cylindre (3).
  9. Dispositif selon la revendication 8, caractérisé en ce que l'installation (19) se compose d'un laser, d'une optique ou d'une lentille cylindrique avec focalisation linéaire.
EP90102857A 1989-02-22 1990-02-14 Procédé et dispositif pour appliquer des substances liquides, pâteuses ou plastiques sur un substrat Expired - Lifetime EP0384278B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3905342A DE3905342A1 (de) 1989-02-22 1989-02-22 Verfahren und vorrichtung zum auftragen von fluessigen, pastoesen oder plastischen substanzen auf ein substrat
DE3905342 1989-02-22

Publications (3)

Publication Number Publication Date
EP0384278A2 EP0384278A2 (fr) 1990-08-29
EP0384278A3 EP0384278A3 (fr) 1991-12-04
EP0384278B1 true EP0384278B1 (fr) 1994-12-14

Family

ID=6374615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90102857A Expired - Lifetime EP0384278B1 (fr) 1989-02-22 1990-02-14 Procédé et dispositif pour appliquer des substances liquides, pâteuses ou plastiques sur un substrat

Country Status (3)

Country Link
US (1) US5122219A (fr)
EP (1) EP0384278B1 (fr)
DE (2) DE3905342A1 (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5540673A (en) * 1989-01-31 1996-07-30 The Procter & Gamble Company Refastenable mechanical fastening system
HK1006553A1 (en) * 1991-06-21 1999-03-05 The Procter & Gamble Company Screen printing method for manufacturing a refastenable mechanical fastening system and fastening system produced therefrom
DE4205682A1 (de) * 1992-02-25 1993-08-26 Berrenbaum Gmbh Vorrichtung und verfahren zum bedrucken von materialbahnen
US5325569A (en) * 1992-10-30 1994-07-05 The Procter & Gamble Company Refastenable mechanical fastening system having particular viscosity and rheology characteristics
US5300058A (en) * 1992-12-10 1994-04-05 The Procter & Gamble Company Disposable absorbent article having an improved mechanical fastening system
US5392498A (en) * 1992-12-10 1995-02-28 The Proctor & Gamble Company Non-abrasive skin friendly mechanical fastening system
US6139479A (en) * 1998-02-23 2000-10-31 Reynolds Consumer Products, Inc. Apparatus and method for manufacture of containers of variable length
US6770240B1 (en) * 1999-05-21 2004-08-03 Microfibres, Inc. System and method for air embossing fabrics utilizing improved air lances
US7229680B1 (en) 1999-09-21 2007-06-12 Microfibres, Inc. Realistically textured printed flocked fabrics and methods for making the fabrics
DE10020101A1 (de) * 2000-04-22 2001-10-25 Beiersdorf Ag Verfahren zum Auftragen von flüssigen, pastösen oder plastischen Substanzen auf ein Substrat
DE10020102A1 (de) 2000-04-22 2001-10-25 Beiersdorf Ag Verfahren und Vorrichtung zum Auftragen hochviskoser Flüssigkeiten
DE10037549A1 (de) 2000-08-02 2002-02-14 Beiersdorf Ag Verfahren und Vorrichtung zum Auftragen von Schmelzhaftklebern auf ein Trägermaterial
DE60110429T2 (de) 2000-08-03 2006-03-02 Microfibres, Inc. Anordnungen und verfahren zum stabilisieren von drehbaren schablonen zum pneumatischen prägen von warenbahnen
DE10039884A1 (de) 2000-08-16 2002-02-28 Beiersdorf Ag Verfahren zum zumindest partiellen Beschichten von Trägermaterialien
TW201249633A (en) * 2011-06-03 2012-12-16 jie-han Lin Resin filling device, mold, and method thereof
EP2679112A1 (fr) 2012-06-26 2014-01-01 3M Innovative Properties Company Procédé de fabrication de fixations et toiles de précurseurs, élément de fixation et toile de précurseur
DE202012009804U1 (de) * 2012-10-15 2014-01-16 Düspohl Maschinenbau Gmbh Vorrichtung zum Auftragen von Flüssigkeit
CN109501445A (zh) * 2018-11-19 2019-03-22 磐安县宸熙工艺品有限公司 一种蓝印花布生产设备
CN109484005A (zh) * 2018-11-21 2019-03-19 磐安县宸熙工艺品有限公司 一种用于蓝印花布自动上浆除桨的系统
CN109530148A (zh) * 2018-11-23 2019-03-29 磐安县宸熙工艺品有限公司 用于蓝印花布加工的生产线
CN109537313A (zh) * 2018-12-17 2019-03-29 磐安县宸熙工艺品有限公司 一种蓝印花布的加工工艺
WO2024144943A1 (fr) * 2022-12-31 2024-07-04 Kimberly-Clark Worldwide, Inc. Procédé et appareil de traitement de bande

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1577888A1 (de) * 1965-08-24 1969-07-31 Hesselmann Planatolwerk H Vorrichtung zum Auftragen von fluessigen Substanzen,insbesondere Klebstoff
US3930923A (en) * 1970-08-31 1976-01-06 Milprint, Inc. Nylon extrusion coating
DE2123200A1 (fr) * 1971-03-25 1972-09-28
BR8207795A (pt) * 1981-07-21 1983-06-21 Billeter Kunststoffpulver Ag Processo e dispositivo para a aplicacao de revestimentos de superficie parciais
DE3638307A1 (de) * 1986-11-10 1988-05-19 Volker Ludwig Vorrichtung zum auftragen von fluessigen, pastoesen oder plastischen substanzen auf ein substrat
DE8813088U1 (de) * 1988-10-18 1988-12-01 MAN Roland Druckmaschinen AG, 6050 Offenbach Druckwerk für eine Offsetrotationsdruckmaschine

Also Published As

Publication number Publication date
DE3905342A1 (de) 1990-08-23
EP0384278A3 (fr) 1991-12-04
US5122219A (en) 1992-06-16
EP0384278A2 (fr) 1990-08-29
DE59007967D1 (de) 1995-01-26

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