EP0125071A2 - Revêtement de matières plastiques - Google Patents

Revêtement de matières plastiques Download PDF

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Publication number
EP0125071A2
EP0125071A2 EP84302802A EP84302802A EP0125071A2 EP 0125071 A2 EP0125071 A2 EP 0125071A2 EP 84302802 A EP84302802 A EP 84302802A EP 84302802 A EP84302802 A EP 84302802A EP 0125071 A2 EP0125071 A2 EP 0125071A2
Authority
EP
European Patent Office
Prior art keywords
web
coating
plastics material
coater
bath
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Withdrawn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
EP84302802A
Other languages
German (de)
English (en)
Other versions
EP0125071A3 (fr
Inventor
Thomas Porter
Harold Beaumont
William Alfred Laurie Lewis
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.)
Porter Lancastrian Ltd
Original Assignee
Porter Lancastrian Ltd
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 Porter Lancastrian Ltd filed Critical Porter Lancastrian Ltd
Publication of EP0125071A2 publication Critical patent/EP0125071A2/fr
Publication of EP0125071A3 publication Critical patent/EP0125071A3/fr
Withdrawn legal-status Critical Current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
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • 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
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • B05C3/12—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length
    • B05C3/125—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length the work being a web, band, strip or the like
    • 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
    • B05D7/02—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 macromolecular substances, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials
    • 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
    • B05D2254/00—Tubes
    • B05D2254/02—Applying the material on the exterior of the tube
    • 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
    • B05D7/02—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 macromolecular substances, e.g. rubber
    • B05D7/04—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 macromolecular substances, e.g. rubber to surfaces of films or sheets

Definitions

  • the invention concerns the coating of plastics materials, and has more particular reference to a method of and an apparatus for the double-sided coating of such materials in sheet or lay flat tubular form.
  • the object of the present invention to provide a method of and an apparatus for coating the outer surface of polythene or other plastics material in lay-flat tubular form with a barrier material so as to reduce the permeability thereof.
  • a method of forming an enveloping coating on a web (13) of plastics material including applying to the web (13) a liquid containing a coating substance characterised in that the so-coated web (13) is moved vertically or substantially vertically to and through a drying zone (31), and in that the proportion of the coating substance in the liquid, and the rate of advance of the web (13), are chosen in accordance with a desired thickness of the coating substance on the web.
  • the coating material will be a water based polyvinylidene chloride solution.
  • the invention also provides apparatus for forming an enveloping coating on a web (13) of plastics material comprising: a coater (45,48) whereat the web (13) can be contacted with a liquid containing a coating substance; a drier (31) characterised in that there is provided means for passing the web (13) to the coater (45, 48) and means for passing the web (13) vertically or substantially vertically from the coater (45,48) to the drier (31).
  • a second roller assembly 14 at the output end 15 of the apparatus functions to receive and support coated tubing during passage thereof from the apparatus.
  • the first and second roller assemblies 11, 14 are arranged in horizontal, substantially aligned dispositions, and a plurality of drive roller units 16, 17 are provided at the input and output ends 12, 15 respectively, of the apparatus.
  • a coating/drying station 18 is provided intermediate the said roller assemblies.
  • Accumulator roller systems 19, 20 are provided at the input and output ends, respectively, to accommodate any temporary differential between the throughput of the coating/drying station 18 and the rate of delivery of tubing 13 to the input end 12 or the rate of take-up of tubing from the output end 15, respectively.
  • the individual rollers 21 of the first roller assembly 11 are in closely spaced apart disposition in the initial section thereof, as considered in the direction of feed, whilst the remaining rollers are relatively widely spaced to receive the accumulator roller system 19 as will hereinafter be made apparent.
  • Two drive roller units 16 are provided at the input end of the machine, such units being located one at either side of the accumulator roller system 19, and each unit comprising a lower roller 22 arranged in alignment with the individual rollers 21 and in lieu of one such roller and an upper, pressure roller 23 in nip-forming relationship therewith.
  • the accumulator roller system 19 consists of three fixed rollers 24 arranged above the plane defined by the first roller assembly, each roller 24 lying in register with a respective one of the rollers of such assembly, and two vertically adjustable rollers 25 arranged between the fixed rollers 24 and movable between inoperative positions below the plane of the roller assembly and operative positions well above such plane, as is clearly apparent from the drawing.
  • the individual rollers 26 of the second roller assembly 14 are arranged in two spaced groups of closely spaced rollers, the accumulator roller system 20 being located between such groups.
  • Three drive roller units 17 are provided at the output end of the machine, such units 17 each comprising a lower roller 27 in horizontal alignment with the individual rollers 26 and a pressure roller 28 in nip forming relationship therewith.
  • a drive roller unit 17 is provided at each end of assembly 14 whilst the third such unit is located immediately after accumulator roller system 20.
  • the accumulator roller system 20 consists of two spaced rollers 29 in alignment with the rollers of the second roller assembly 14 and a vertically adjustable roller 30 intermediate roller 29 and movable between an inoperative position above the plane of assembly 14 and an operative position well below such plane.
  • the coating/drying station 18 provides for plural coating operations on the tubing and, in the case of the embodiment illustrated, comprises first and second stage systems 31 of like form.
  • Each system includes a dip coater 32, an infra-red heater 33 and a drying chamber 34, the tube passing vertically from the coater 32 to and through the chamber 34, the heater 33 being located directly adjacent the inlet aperture 36 at the underside of the drying chamber 34.
  • Cooling means 37 are provided adjacent the outlet aperture 38 of the drying chamber and through which the tubing passes on leaving such chamber 34.
  • Two horizontally spaced rolls 39, 40 are provided adjacent the cooling means, roll 39 being in alignment with outlet aperture 38 and cooperating with split input roll 41, shaped to accommodate the spout, at the lower end of the drying chamber to define a substantially vertical path for the tubing through the stage and roll 40 being in vertical alignment with a guide roll 42 arranged at substantially the same horizontal level as input roll 41.
  • Rolls 39, 40 are both chilled rolls and are coupled together by a belt 43 tensioned by a jockey pulley 44, the rolls being driven.
  • Each dip coater 32 comprises a constant-level overflow coating trough 45, an input roll 46 in advance of such trough, a collect/recirculate trough 47 to receive overflow coating material from trough 45, and a dip roller 48, being'input roll 41 repositioned to operate in a coating mode, as will hereinafter be explained.
  • the apparatus thus far described provides for the continuous double-sided coating of a lay-flat tubular material (or other sheet material) passed therethrough, coated material advancing to a welder/separator unit generally indicated at 49, and the individual bags being advanced to a packaging station, not shown.
  • the arrangement illustrated also includes means for initially threading up the apparatus, such means comprising an endless chain 50 which passes through the coating/drying station 18 (but not the dip coaters 32) and carries a leader tube 51 attachable to the leading edge of an incoming length of tubing, support and drive rollers 52 being provided for such chain. It is to be understood that the chain 50 and leader tube 51 and the related rollers 52 will be utilised only for start up purposes, and once the machine is properly threaded up such structures will not be used.
  • roller4l/48 being in the raised input mode position during such threading up, the leader tube 51 is separated from the tubing and roller 41/48 is lowered to bring the tubing into the coating trough 45.
  • the method we have applied a coating of PVDC to a lay-flat tube of LDPE having a film thickness of 0.18 mm by passing the same through a dip coater containing a dilute aqueous dispersion of the coating material, solids concentration of the disper- tion being less than 25% by weight and the rate of advance of the tube being approximately 1.5 metres per minute.
  • the applied coating was dried at approximately 82°C. After coating as aforesaid the tube was found to have a coating weight of approximately 8 grams per square metre.
  • rollers hereinmentioned will be split or apertured, as necessary, to accommodate the spout as applied to the tubing.
  • the invention is not limited to the use of two stages, since it may be found sufficient in some instances to use a single stage or more than two stages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Coating Apparatus (AREA)
EP84302802A 1983-04-28 1984-04-26 Revêtement de matières plastiques Withdrawn EP0125071A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8311620 1983-04-28
GB838311620A GB8311620D0 (en) 1983-04-28 1983-04-28 Coating of plastics materials

Publications (2)

Publication Number Publication Date
EP0125071A2 true EP0125071A2 (fr) 1984-11-14
EP0125071A3 EP0125071A3 (fr) 1985-09-18

Family

ID=10541847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84302802A Withdrawn EP0125071A3 (fr) 1983-04-28 1984-04-26 Revêtement de matières plastiques

Country Status (4)

Country Link
EP (1) EP0125071A3 (fr)
DK (1) DK212984A (fr)
GB (2) GB8311620D0 (fr)
NO (1) NO841658L (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662636A1 (fr) * 1990-06-05 1991-12-06 Pack Ind Sa Station d'encollage de bandes continues dans une installation pour la fabrication d'elements en carton.
EP2277630A3 (fr) * 2009-07-24 2014-08-20 Vits Technology GmbH Dispositif de revêtement d'une bande traversante
CN115041355A (zh) * 2022-07-11 2022-09-13 林兴寿 一种弹力布涂层用的凝固浸渍料槽装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105298C2 (de) * 1990-02-21 1996-04-11 Bando Chemical Ind Tauchanlage zur Anbringung von Klebe- oder Haftmitteln an Seilen
CN115318548B (zh) * 2022-07-29 2023-08-18 江门建滔积层板有限公司 一种覆铜板生产中玻璃布的浸胶设备及浸胶工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH497292A (de) * 1968-10-18 1970-10-15 Plansee Metallwerk Anlage zum Überziehen von Materialien aller Art mit einem Kunststoffüberzug
DE1938748A1 (de) * 1969-07-30 1971-02-18 Lissmann Alkor Werk Verfahren zur Beschichtung eines Folienschlauches
US3965551A (en) * 1975-08-14 1976-06-29 Allied Tube & Conduit Corporation Production of polymer-coated steel tubing
GB2047616A (en) * 1979-03-19 1980-12-03 Db Plastics Mfg Ltd Extruded plastics bags
EP0037025A1 (fr) * 1980-03-28 1981-10-07 Hoechst Aktiengesellschaft Procédé de fabrication d'un tuyau pourvu d'un film de revêtement en matière plastique à l'extérieur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB871462A (en) * 1958-05-12 1961-06-28 Barrow Hepburn & Gale Ltd Improvements in or relating to apparatus for treating textile fabrics
NL290038A (fr) * 1962-03-12
DE1249130B (de) * 1962-05-28 1967-08-31 Algemene Kunstzijde Unie N V Arnheim (Niederlande) Verfahren und Vorrichtung zum 1 ackieren von Folien
DE1504690B1 (de) * 1963-06-26 1970-05-27 Parsch Fa Franz A Verfahren und Vorrichtung zum Aufbringen einer Aussenbeschichtung auf einen Gewebeschlauch,insbesondere einen Feuerloeschschlauch
GB1193232A (en) * 1968-01-25 1970-05-28 Transparent Paper Ltd Improvements in or relating to apparatus for Coating Travelling Webs
GB1175025A (en) * 1968-07-09 1969-12-23 Wolfen Filmfab Veb Apparatus for the continuous, simultaneous application of coatings to both sides of a strip of thermoplastic sheet material
GB1250671A (fr) * 1969-05-21 1971-10-20
US3790403A (en) * 1972-01-13 1974-02-05 Du Pont Glass fabric coated with crack-free fluorocarbon resin coating and process for preparing
CA1104812A (fr) * 1976-03-23 1981-07-14 Simon L. Chu Traduction non-disponible

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH497292A (de) * 1968-10-18 1970-10-15 Plansee Metallwerk Anlage zum Überziehen von Materialien aller Art mit einem Kunststoffüberzug
DE1938748A1 (de) * 1969-07-30 1971-02-18 Lissmann Alkor Werk Verfahren zur Beschichtung eines Folienschlauches
US3965551A (en) * 1975-08-14 1976-06-29 Allied Tube & Conduit Corporation Production of polymer-coated steel tubing
GB2047616A (en) * 1979-03-19 1980-12-03 Db Plastics Mfg Ltd Extruded plastics bags
EP0037025A1 (fr) * 1980-03-28 1981-10-07 Hoechst Aktiengesellschaft Procédé de fabrication d'un tuyau pourvu d'un film de revêtement en matière plastique à l'extérieur

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662636A1 (fr) * 1990-06-05 1991-12-06 Pack Ind Sa Station d'encollage de bandes continues dans une installation pour la fabrication d'elements en carton.
EP0461055A2 (fr) * 1990-06-05 1991-12-11 Pack'industrie S.A. Station d'encollage de bandes continues dans une installation pour la fabrication d'éléments en carton
EP0461055A3 (en) * 1990-06-05 1992-05-06 Pack'industrie S.A. Glue applicator for continuous webs in an apparatus for making cardboard products
EP2277630A3 (fr) * 2009-07-24 2014-08-20 Vits Technology GmbH Dispositif de revêtement d'une bande traversante
CN115041355A (zh) * 2022-07-11 2022-09-13 林兴寿 一种弹力布涂层用的凝固浸渍料槽装置
CN115041355B (zh) * 2022-07-11 2024-01-12 廊坊瑞格新材料科技有限公司 一种弹力布涂层用的凝固浸渍料槽装置

Also Published As

Publication number Publication date
NO841658L (no) 1984-10-29
EP0125071A3 (fr) 1985-09-18
GB8410745D0 (en) 1984-05-31
GB2138714A (en) 1984-10-31
GB8311620D0 (en) 1983-06-02
DK212984A (da) 1984-10-29
DK212984D0 (da) 1984-04-27

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Inventor name: BEAUMONT, HAROLD

Inventor name: LEWIS, WILLIAM ALFRED LAURIE

Inventor name: PORTER, THOMAS