EP0235425A1 - Dispositif et méthode d'application d'un matériau de revêtement fluide à l'aide d'un rouleau poreux - Google Patents

Dispositif et méthode d'application d'un matériau de revêtement fluide à l'aide d'un rouleau poreux Download PDF

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Publication number
EP0235425A1
EP0235425A1 EP86303019A EP86303019A EP0235425A1 EP 0235425 A1 EP0235425 A1 EP 0235425A1 EP 86303019 A EP86303019 A EP 86303019A EP 86303019 A EP86303019 A EP 86303019A EP 0235425 A1 EP0235425 A1 EP 0235425A1
Authority
EP
European Patent Office
Prior art keywords
fluid
roll
porous
web
coating
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.)
Withdrawn
Application number
EP86303019A
Other languages
German (de)
English (en)
Inventor
Frederic S. Mc Intyre
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.)
Acumeter Laboratories Inc
Original Assignee
Acumeter Laboratories Inc
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 Acumeter Laboratories Inc filed Critical Acumeter Laboratories Inc
Publication of EP0235425A1 publication Critical patent/EP0235425A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • 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
    • 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

Definitions

  • the present invention relates to methods of and apparatus for applying or coating fluid materials, includ­ing but not restricted to hot melt type liquids and adhe­sives of a wide variety of viscosities, to surfaces (here­inafter generically referred to as webs), being more par­ticularly directed to such coating with the aid of novel porous roll surfaces and the like.
  • An object of the present invention is to employ the features of this discovery to provide, accordingly, a novel method of and apparatus for fluid application that enables such and other improved operation through the use of porous roll fluid-metering coating.
  • a further object is to provide such a new and improved coating applicator that enables, also, simultan­eous pattern coatings and stripes of different fluid coat weights; continuous, pattern and stripe simultaneous coat­ings of dissimilar fluid coating materials; and successive and superimposed fluid coatings.
  • the invention embraces a method of coating a web with fluid material, that comprises, pumping such fluid material with one of continuous and intermittent metered flow along a predetermined longitudinal path, exiting the same at a region transverse thereto, receiving the transversely exited fluid in a reservoir volume extending along and enveloping said path, exiting the fluid from said reser­voir volume through a porous surface co-extensive with and bounding said reservoir volume, relatively rotating the said porous surface and the said region of fluid exiting from said path, and applying the fluid longitudinally exited through the porous surface to said web while moving the web transversely past the same to coat the web with the fluid as metered through the pores of the porous sur­face.
  • the invention contemplates fluid coating apparatus having, in combination, means for con­tinuously or intermittently pumping the coating fluid along a longitudinally extending conduit terminating in an opening adjusted for transversely exiting the fluid, a cylindrical annular reservoir volume enveloping the con­duit and its opening for receiving the exited fluid, a cylindrical porous shell externally bounding the cylindri­cal reservoir to constitute a fluid dispensing roll, means for relatively rotating the conduit and its fluid exiting opening and the roll to cylindrically distribute the exited fluid along the reservoir volume, and means for rotating said roll and applying the fluid dispensed through the porous shell to web means drawn transversely past the roll.
  • Preferred and best mode embodiments and modifications are hereinafter detailed.
  • Figs. 1A and B of which are isometric (exploded) and transverse sectional views of a novel porous roll applicator designed for use in accor­dance with the present invention
  • a preferred porous roll applicator construction for contin­uously or intermittently pumping the coating fluid from a single supply port at a rotary joint union 2 along a long­itudinally extending conduit 2 ⁇ terminating in a trans­versely radially extending opening 2 ⁇ within a cylindrical inner supply conduit 4 -- the inlet 2 ⁇ extending pre­ferably axially along the roll 4 and the opening 2 ⁇ exit­ing fluid transversely therefrom.
  • a coaxial cylindrical annular reservoir cavity or volume 6 envelops the inner roll conduit 4 and receives the exited fluid at 2 ⁇ .
  • the reservoir volume 4 is coaxially externally bounded by a cylindrical porous shell 8, as of sintered metal, screen­ing or the like, as later more fully described, with the conduit 4 and its fluid exiting opening 2 ⁇ being relative­ly rotatable to distribute the fluid within and along the reservoir to keep the same filled and applying fluid uni­formly longitudinally along the porous shell 8.
  • the porous shell may, for example, be of uniform sintered metal construction, say 20 micron pores, as in Fig. 3A, or may employ multiple varying or different porosity (and weight) shells as in Fig.
  • the differential micron construction will reduce the pre­ssure drop for high viscosity materials such as 10,000-30,000 cps at room temperature, when metered through the porous metal shell.
  • the outer surface of the porous shell roll 8 may be varied not only in degree of porosity, but also in surface preparation or extent, as at 8 ⁇ in Fig. 1A, to introduce predetermined patterns in the coating, such as the repeat coating horizontal stripes or longitudinal side stripes and intermittent horizontal stripes of Fig. 4A.
  • the patterns may be metered into the surface of the roll by special etching after the surface pores have been machined closed.
  • porous sintered metal cylinders have hereto­fore been used for the very different applications of air film as bearing rolls, wicks and filter cartridges and the like
  • suitable sintered stainless steel, Monel and similar porosities of 10, 20 or 40 microns in shell thickness of the order of 3/8 inch have been successfully employed for this very different usage as a viscous fluid metering coating roll.
  • Such are the Series 1400 of Mott Metallurgical Corporation of Farmington, Connecticut. This unique usage is more clearly delineated in Figs. 5A and 5B, showing the porous apparatus roll 8 used for transfer and direct coating to moving webs, respectively.
  • Fig. 5A and 5B showing the porous apparatus roll 8 used for transfer and direct coating to moving webs, respectively.
  • the porous roll 8 is rotated in contact with a rubber-coated steel mandrel or similar applicating roll 10 that transfers the coating fluid from the porous dispens­ing roll 8 to the web (so-labelled) as it moves between the roll 10 and the lower laminating roll 12, rotating oppositely to the roll 10.
  • the laminating roll insures positive web contact against the applicating roll for fluid transfer.
  • the porous roll 8 rotates oppositely to the transfer or applicating roll 10 and preferably either with the same surface speed thereof or synchronously therewith, or proportional thereto (including fractional speed).
  • the applicating roll operates at web speed or at a slightly less speed to create a smeared surface. Typi­cal speed can be as low as 95% of web speed. In Fig.
  • the porous roll 8 itself directly con­tacts the web as the same moves between the roll 8 and an oppositely rotating lower laminating roll 12 which insures positive contact of the web with the porous roll.
  • the porous roll 8 runs synchronous to the web speed for pattern print coating; or at a slightly less speed for full width coating or continuous stripes (longitudinal in web direction) to create a smeared surface.
  • the systems of Figs. 5A and 5B permit full, or continuous, stripe and pattern coatings in single weight coats.
  • FIG. 6 A more complete system for that schematically shown in Figs. 5A is shown in Fig. 6 applied to the illustrative example of hot melt adhesives as of the types described in said patents or other well-known coatings of this type, fed from a hopper 1 through a filter 3 to a positive dis­placement metering pump 5 (such as that of said patents) to supply fluid at 7 to a three-way valve 9 (as, for exam­ple, of the type described in my U.S. Patent 4,565,217) that supplies the rotary union inlet 2 of the porous roll system 8.
  • a return feed back to the filter input is shown at 11.
  • the metering pump 5 is controlled by a digital pump drive 13 which is connected to a web reference magne­tic pick up sensor 15 contacting the web to synchronize the pump speed with the web speed. Examples of full or continuous coatings and continuous longitudinal stripe and intermittent horizontal stripe patterns are shown in Figs. 7A and 7B.
  • Multiple width porous roll applicators may also be provided as shown in Fig. 2, illustrating multiple inlet supply ports and rotary union 2, multiple width successive inner supply rolls 4, with successive section separators 4 ⁇ between adjacent rolls separating the respective successivelysive reservoir cavities and porous roll shell sections.
  • Fig. 4B illustrates typical exemplary multiple width repeat coating patterns.
  • a second porous roll 8 ⁇ (pattern #2 or different coating weight or material, for example) simultaneously contacts the opposite side of the applicator roll 10.
  • the porous rolls 8 and 8 ⁇ can run synchronously with or at fractional differential speed to the applicating roll 10 which, in turn, may, if desired, run at a fractional differential speed to that of the web.
  • FIG. 8 A complete system for such different material or differential operation is shown in Fig. 8, wherein the second porous roll 8 ⁇ is shown fed from a second positive displacement metering pump 5 ⁇ , feeding at 7 ⁇ a second 3-­way valve 9 ⁇ for inputting the second porous roll assembly 8 ⁇ , and with a return line 11 ⁇ to the input of the filter 3.
  • the pump 5 feeding the porous roll 8 is shown as a dual discharge metering pump with supply lines 7 and 7A.
  • Fig. 9 illustrates an exemplary pattern coating of inter­mittent differential weight stripe (supply line 7 ⁇ -- say, 2 mol coating) and continuous longitudinal side stripes (supply lines 7 and 7A -- say, 1 mil coating).
  • the porous roll applicating technique of the inven­tion is useful with room-temperature liquids and with hot melt type liquids, at operating temperatures of 350°F, and fluid coating applications of other temperature ranges. This can be accomplished by installing heating elements within the porous roll assembly, or using the porous metal material 8 as an electrical conductor/resistor, receiving heating current. Typical material used for resistance heat would be Nichrome metal.
  • Hot melt pattern coat­ings are required, for example, in the cigarette indus­try.
  • the attachment of the filter covering paper, known as tipping paper, joining the filter element to the cigarette requires parameter/ rectangular adhesive pattern with the center area open, without adhesive.
  • Pre­sent cigarette making machines are operating up to 7,000 cigarettes per minute, which represents the drying limita­ tion of conventional polyvinyl resin adhesive. Any fur­ther increase in line speed prevents successive adhesive attachment and drying of the cigarette components.
  • Hot melt coating used with the present invention in place of the resin adhesive permits a further increase in produc­tion speed.
  • the hot melt will be applied at a low coating thickness, such as 1 mil, in order to obtain satisfactory bond of the cigarette components.
  • the invention is particularly useful with room temperature materials such as silicones, polyvinyl acetates and other adhesive coatings, and with hot melts such as the etholene vinyl package sealing materials.

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  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP86303019A 1986-02-28 1986-04-22 Dispositif et méthode d'application d'un matériau de revêtement fluide à l'aide d'un rouleau poreux Withdrawn EP0235425A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83505086A 1986-02-28 1986-02-28
US835050 1986-02-28

Publications (1)

Publication Number Publication Date
EP0235425A1 true EP0235425A1 (fr) 1987-09-09

Family

ID=25268447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86303019A Withdrawn EP0235425A1 (fr) 1986-02-28 1986-04-22 Dispositif et méthode d'application d'un matériau de revêtement fluide à l'aide d'un rouleau poreux

Country Status (8)

Country Link
EP (1) EP0235425A1 (fr)
JP (1) JPS62204876A (fr)
KR (1) KR870007730A (fr)
CN (1) CN1008605B (fr)
AU (1) AU594366B2 (fr)
BR (1) BR8606147A (fr)
FI (1) FI863714A (fr)
IL (1) IL80013A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0746421A1 (fr) * 1993-11-24 1996-12-11 BOELKINS, Charles, W. Dispositif de lubrification par contact, avec une alimentation controlee
US6012903A (en) * 1996-07-22 2000-01-11 Uni-Mist, Inc. Positive-displacement liquid-metering pump with continuously variable output
WO2006124831A1 (fr) * 2005-05-19 2006-11-23 General Electric Company (A New York Corporation) Procede de fabrication d'articles non continus pourvus de microstructures
WO2010018302A1 (fr) * 2008-08-11 2010-02-18 Upm-Kymmene Corporation Procédé de fabrication de papier d'impression
WO2017058170A1 (fr) * 2015-09-29 2017-04-06 Kimberly-Clark Worldwide, Inc. Applicateur d'adhésif à vanne rotative
US9950336B2 (en) 2013-05-31 2018-04-24 Boe Technology Group Co., Ltd. Coating apparatus and process for manufacturing color filter substrate

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU640546B2 (en) * 1990-12-17 1993-08-26 Jkj & Em Mahon Pty Ltd Spraying device and method
JPH0674914A (ja) * 1992-06-23 1994-03-18 Nkk Corp 表面欠陥検査装置
JP6118061B2 (ja) * 2012-10-10 2017-04-19 ユニ・チャーム株式会社 液体適用装置及び液体適用方法
CN106862000B (zh) * 2016-12-28 2019-09-10 张家港康得新光电材料有限公司 涂布设备及其制备方法和复合光学膜的制备方法
CN109650118A (zh) * 2019-02-28 2019-04-19 安徽皖升力环保股份有限公司 一种抗老化hdpe糙面防渗膜的制作方法
CN110665740B (zh) * 2019-09-26 2021-03-02 烽火通信科技股份有限公司 用于制造光纤带的涂覆轮、涂覆装置、系统及方法
CN111546699A (zh) * 2020-04-26 2020-08-18 佛山市达肯包装机械有限公司 一种纸筒袋制筒机的纵向条胶机构
CN115301486B (zh) * 2022-09-02 2024-02-23 浙江宇狮包装材料有限公司 一种内腔送料的蜂窝毛细孔涂布辊

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2319616A (en) * 1941-04-12 1943-05-18 Cottrell C B & Sons Co Inking roller for printing presses
US2957448A (en) * 1956-11-26 1960-10-25 Dynia George Painting machine
CH388993A (de) * 1959-12-10 1965-03-15 Agfa Ag Auftragswerk, insbesondere für Offsetdruckmaschinen
DE2004706A1 (de) * 1970-02-03 1971-08-26 Goetzewerke Friedrich Goetze Ag, 5673 Burscheid Vorrichtung zum gleichmaßigen Auftragen von Flüssigkeiten auf Werkstoffbahnen
DE2817878B1 (de) * 1978-04-24 1979-11-22 Krupp Ag Huettenwerke Einoelwalze
EP0154575A1 (fr) * 1984-02-06 1985-09-11 Japan Tobacco Inc. Procédé pour l'application d'une pâte et dispositif à cet effet

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145954B1 (fr) * 1968-11-22 1976-12-06
JPS496518A (fr) * 1972-05-10 1974-01-21
JPS58911B2 (ja) * 1979-04-02 1983-01-08 ダイニツク株式会社 長尺シ−ト物上に粉体によって均一で鮮明な輪郭を有する一定の模様を連続的に形成する方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2319616A (en) * 1941-04-12 1943-05-18 Cottrell C B & Sons Co Inking roller for printing presses
US2957448A (en) * 1956-11-26 1960-10-25 Dynia George Painting machine
CH388993A (de) * 1959-12-10 1965-03-15 Agfa Ag Auftragswerk, insbesondere für Offsetdruckmaschinen
DE2004706A1 (de) * 1970-02-03 1971-08-26 Goetzewerke Friedrich Goetze Ag, 5673 Burscheid Vorrichtung zum gleichmaßigen Auftragen von Flüssigkeiten auf Werkstoffbahnen
DE2817878B1 (de) * 1978-04-24 1979-11-22 Krupp Ag Huettenwerke Einoelwalze
EP0154575A1 (fr) * 1984-02-06 1985-09-11 Japan Tobacco Inc. Procédé pour l'application d'une pâte et dispositif à cet effet

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0746421A1 (fr) * 1993-11-24 1996-12-11 BOELKINS, Charles, W. Dispositif de lubrification par contact, avec une alimentation controlee
EP0746421A4 (fr) * 1993-11-24 1997-04-09 Charles W Boelkins Dispositif de lubrification par contact, avec une alimentation controlee
US5690738A (en) * 1993-11-24 1997-11-25 Boelkins; Charles W. Contact lubricator with metered supply
US5797983A (en) * 1993-11-24 1998-08-25 Boelkins; Charles W. Contact lubricator with metered supply
US5849086A (en) * 1993-11-24 1998-12-15 Boelkins; Charles W. Contact lubricator with metered supply
US6012903A (en) * 1996-07-22 2000-01-11 Uni-Mist, Inc. Positive-displacement liquid-metering pump with continuously variable output
WO2006124831A1 (fr) * 2005-05-19 2006-11-23 General Electric Company (A New York Corporation) Procede de fabrication d'articles non continus pourvus de microstructures
WO2010018302A1 (fr) * 2008-08-11 2010-02-18 Upm-Kymmene Corporation Procédé de fabrication de papier d'impression
US9950336B2 (en) 2013-05-31 2018-04-24 Boe Technology Group Co., Ltd. Coating apparatus and process for manufacturing color filter substrate
WO2017058170A1 (fr) * 2015-09-29 2017-04-06 Kimberly-Clark Worldwide, Inc. Applicateur d'adhésif à vanne rotative
CN108025326A (zh) * 2015-09-29 2018-05-11 金伯利-克拉克环球有限公司 具有回转阀的粘合剂施加器

Also Published As

Publication number Publication date
KR870007730A (ko) 1987-09-21
FI863714A0 (fi) 1986-09-12
BR8606147A (pt) 1987-09-22
JPS62204876A (ja) 1987-09-09
AU594366B2 (en) 1990-03-08
AU6263386A (en) 1987-09-03
CN1008605B (zh) 1990-07-04
CN86103204A (zh) 1987-09-09
IL80013A0 (en) 1986-12-31
FI863714A (fi) 1987-08-29
IL80013A (en) 1989-10-31

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