DK155699B - METHOD AND APPARATUS FOR SURFACE TREATMENT OF FILM COATS BY ELECTRIC CORONA DISPOSAL - Google Patents
METHOD AND APPARATUS FOR SURFACE TREATMENT OF FILM COATS BY ELECTRIC CORONA DISPOSAL Download PDFInfo
- Publication number
- DK155699B DK155699B DK043383A DK43383A DK155699B DK 155699 B DK155699 B DK 155699B DK 043383 A DK043383 A DK 043383A DK 43383 A DK43383 A DK 43383A DK 155699 B DK155699 B DK 155699B
- Authority
- DK
- Denmark
- Prior art keywords
- roller electrode
- hollow shaft
- film web
- tube
- electrode
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Description
iin
DK 155699 BDK 155699 B
Opfindelsen omhandler en fremgangsmåde til kontinuerlig ensidig overfladebehandling af en foliebane ved elektrisk coronaudladning og af den i krav l's indledning angivne art til fremme af den behandlede 5 overflades påtrykningsevne og fastholdningsevne, som kendt fra tysk fremlæggelsesskrift nr. 2 753 750.The invention relates to a method for continuous unilateral surface treatment of a film web by electric corona discharge and of the nature specified in the preamble of claim 1 to promote the printing and retaining ability of the treated surface as known from German Patent Specification No. 2 753 750.
Et problem ved de kendte fremgangsmåder af denne art er bagsideeffekten, der opstår ved en uønsket behandling også af banens bagside og ytrer sig ved banernes 10 ugunstige fasthæftnings- og glideegenskaber ved på- og afvikling og opstakning. Dette skyldes den ikke fuldstændige pålægning af materialebanen på behandlingsvalsen som følge af overfladedefekter af valsebelægningen (huller, porer, påtrykssteder, kratere) samt indtrækning 15 af luft imellem behandlingsvalsen og foliebanen, især ved hurtigt bevægede, meget brede anlæg, hvor den indesluttede luft ikke kan nå at strømme ud ved banerandene.A problem with the known methods of this kind is the backing effect which arises from an undesirable treatment also of the backing of the web and manifests itself by the unfavorable attachment and sliding properties of the webs 10 on loading and unloading and stacking. This is due to the incomplete application of the material web to the treatment roller due to surface defects of the roller coating (holes, pores, pressure points, craters) as well as the entrainment of air between the treatment roller and the foil web, especially in fast moving, very wide installations where the enclosed air cannot reach out at the curb.
Fra tysk fremlæggelsesskrift nr. 1 504 661 kendes en elektrostatisk pålægningsfremgangsmåde, hvor folieba-20 nen oplades elektrostatisk af en trådelektrode og i den tilstand anlægges på valseoverfladen. Denne fremgangsmåde er dog kun problemfri, når valsen består af et metal, og da coronavalser nødvendigvis må have et overtræk af et dielektrisk materiale, er denne frem-25 gangsmåde ikke tilfredsstillende.German Patent Specification No. 1 504 661 discloses an electrostatic deposition method in which the film web is electrostatically charged by a wire electrode and in that state is applied to the roller surface. However, this method is problem-free only when the roller is made of a metal and since corona rollers must necessarily have a coating of a dielectric material, this method is not satisfactory.
Fra beskrivelsen til tysk fremlæggelsesskrift nr.From the description to German submission no.
1 629 540 er det kendt at indblæse en vanskelig aktiver-bar gasart, eksempelvis nitrogen, helium, argon eller neon, imellem foliebanen og coronavalsen og påblæse den 30 til behandling værende folieside med en let aktiverbar gasart, eksempelvis oxygen. De hertil nødvendige anlægsomkostninger og løbende anvendelse af gasarter gør denne fremgangsmåde meget uøkonomisk.It is known to inject a difficult activatable gas species, for example nitrogen, helium, argon or neon, between the foil web and the corona roller and inflate the foil side with a readily activatable gas species, for example oxygen. The necessary construction costs and ongoing use of gases make this process very uneconomical.
22
DK 155699 BDK 155699 B
Opfindelsen har til formål at tilvejebringe en fremgangsmåde af den angivne art, som kan behandle alene den enkelte overflade af en hurtigt vandrende folie med en høj energitæthed for udladningsprocessen.The invention has for its object to provide a method of the kind specified which can treat only the single surface of a rapidly migrating film with a high energy density for the discharge process.
5 Dette opnås ifølge opfindelsen ved en fremgangsmåde af den i krav l's kendetegnende del angivne art.This is achieved according to the invention by a method of the characterizing part of claim 1.
Opfindelsen omfatter også et apparat til udøvelse af fremgangsmåden og af den i krav 3rs indledning angivne art, hvilket apparat er ejendommeligt ved den i krav 10 3's kendetegnende del angivne konstruktion.The invention also includes an apparatus for carrying out the method and of the nature specified in the preamble of claim 3, which is peculiar to the construction of the characterizing part of claim 10 3.
Opfindelsen forklares nærmere nedenfor i forbindelse med tegningen, hvor: fig. 1 er et tværsnit igennem en udførelsesform for ap-paratet ifølge opfindelsen langs snitlinien A-A på fig.The invention is further explained below in connection with the drawing, in which: FIG. 1 is a cross-section through an embodiment of the apparatus according to the invention along section line A-A in FIG.
15 2, og fig. 2 er et aksialt snit igennem apparatet.15 and FIG. 2 is an axial section through the apparatus.
Som vist på fig. 1 består apparatet ifølge opfindelsen i det væsentlige af et som elektrode fungerende og til føring af det behandlede substrat S tjenende cylinder-20 formet og af et dielektrisk materiale bestående valse legeme W, som dannes af to, i to på hinanden følgende arbejdstrin uadskilleligt om hinanden viklede rør 5 og 6 samt af en over valselegemet, omkring et omdrejningspunkt D svingelig og jordforbundne modelektroder 14 op-25 tagende ramme R. Ved bevægelsen af substratet S over valselegemet W bliver den fra det roterende valselegeme bortvendende overflade af substratet S bearbejdet af en imellem elektroder 7, som er anbragt i det dielektriske materiale af de på hinanden viklede rør 5 og 6, og de ydre, 30 jordforbundne modelektroder 14 antændt, elektrisk corona- udladning.As shown in FIG. 1, the apparatus according to the invention consists essentially of a cylindrical 20 serving as an electrode and for conducting the treated substrate S and of a dielectric material consisting of a roller body W formed by two, in two successive working steps, inseparable from each other wrapped tubes 5 and 6 as well as a frame R. pivoting and grounding model electrodes 14 pivotable about a pivot body D about a pivot point D In the movement of the substrate S over the roller body W, the surface facing away from the rotating roller body S is processed by an intermediate electrodes 7 arranged in the dielectric material of the interwoven tubes 5 and 6, and the outer, 30 grounded model electrodes 14 ignited, electric corona discharge.
33
DK 155699 BDK 155699 B
Den side af substratet S, der ikke skal behandles, ansuges igennem gennemboringer 12 i valselegemet W af vakuumet i et vakuumkammer 20, som afgrænses fra resten af hulrummet i valselegemet af skillevægge 13. Herved 5 opstår der en luftfri berøring imellem substratet og valseoverfladen.The side of the substrate S which is not to be treated is sucked through bores 12 in the roller body W of the vacuum in a vacuum chamber 20, which is delimited from the rest of the cavity in the roller body by partitions 13. This causes an air-free contact between the substrate and the roller surface.
Som vist på fig. 2 består valseelektroden af en stationær, i lejebukke 2 lejret aksel 1. På akselen 1 er der påsat to i kuglelejer 3 omkring akselen 1 drejeligt lej-10 rede cylinderformede endestykker 4 af et dielektrisk materiale, som bærer de dielektriske rør 3 og 6. Gennemboringerne 12 befinder sig således imellem elektroderne 7 og 14.As shown in FIG. 2, the roller electrode consists of a stationary shaft 1. In bearing blocks 2, shaft 1. On shaft 1, two cylindrical end pieces 4 rotatably mounted in ball bearings 3 are mounted on a dielectric material carrying the dielectric tubes 3 and 6. The bores 12 is thus located between the electrodes 7 and 14.
Elektroderne 7, der fortrinsvis er tynde metaltråde med 15 en tykkelse på 0,2-0,5 mm, strømforsynes gennem en slæ besko 8 og en tilgangsledning 9 fra en generator G med en i en transformator T frembragt højfrekvent vekselstrøm. Hele valselegemet W er sikret imod en aksial forskydning ved hjælp af klemringe 10. Slæbeskoen 8 trykkes 20 imod elektroden 7 af en fjeder 19. Vakuumet i vakuumkamme ret 20 frembringes ved hjælp af en pumpe eller ventilator V, som bortfører luften igennem akselen 1, der står i forbindelse med vakuumkammeret gennem radiale fordelingsåbninger 11.The electrodes 7, which are preferably thin metal wires having a thickness of 0.2-0.5 mm, are powered through a sliding shoe 8 and an inlet line 9 from a generator G with a high frequency alternating current produced in a transformer T. The entire roller body W is secured against an axial displacement by clamping rings 10. The lug shoe 8 is pressed 20 against the electrode 7 by a spring 19. The vacuum in vacuum chamber 20 is generated by a pump or fan V which removes the air through the shaft 1 which communicates with the vacuum chamber through radial distribution openings 11.
25 Også den over hver valseelektrode 7 anbragte modelek trode 14 består af tynde metaltråde, der har en afstand fra valseelektroden på 1-2 mm. Trådene 14 fastholdes i stilling af pladesegmenter 15, som er tilpasset valselegemets radius. Trykfjedre 16 leverer den nødvendige 30 forspænding og kompenserer for de temperaturafhængige længdeudvidelser og nedhæng. Modelektroderne 14 er ophængt i en rammedel 17, som med henblik på en lettere indføring af det til behandling værende substrat S er svinge-The model electrode 14 placed over each roller electrode 7 also consists of thin metal wires that have a distance from the roller electrode of 1-2 mm. The wires 14 are held in position by plate segments 15 which are adapted to the radius of the roller body. Pressure springs 16 provide the required 30 bias and compensate for the temperature-dependent length extensions and suspension. The model electrodes 14 are suspended in a frame portion 17 which, for easier insertion of the substrate S for processing, is pivotal.
DK 155699 BDK 155699 B
4 lig eller opklappelig omkring omdrejningspunktet D.4 equal or foldable around the pivot point D.
En anden rammedel 18 er derimod stationært forbundet med akselen 1.On the other hand, another frame member 18 is stationary to the shaft 1.
»n'n
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3203806 | 1982-02-04 | ||
DE19823203806 DE3203806A1 (en) | 1982-02-04 | 1982-02-04 | METHOD AND DEVICE FOR TREATING THE SURFACE OF FILM COATINGS BY MEANS OF ELECTRIC CORONA DISCHARGE |
Publications (4)
Publication Number | Publication Date |
---|---|
DK43383D0 DK43383D0 (en) | 1983-02-03 |
DK43383A DK43383A (en) | 1983-08-05 |
DK155699B true DK155699B (en) | 1989-05-01 |
DK155699C DK155699C (en) | 1989-09-25 |
Family
ID=6154789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK043383A DK155699C (en) | 1982-02-04 | 1983-02-03 | METHOD AND APPARATUS FOR SURFACE TREATMENT OF FILM COATS BY ELECTRIC CORONA DISPOSAL |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0086977B1 (en) |
DE (2) | DE3203806A1 (en) |
DK (1) | DK155699C (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU565762B2 (en) * | 1983-02-04 | 1987-09-24 | Minnesota Mining And Manufacturing Company | Method and apparatus for manufacturing an electret filter medium |
DE3534398A1 (en) * | 1985-09-27 | 1987-04-09 | Hoechst Ag | METHOD FOR PRODUCING A TRANSFER METALIZING FILM |
DE3537614C1 (en) * | 1985-10-23 | 1987-07-02 | Klaus Kalwar | Method and device for pretreatment for the single or multiple coating of inner surfaces of an open hollow body made of plastic by electrical corona discharge |
DE3641169A1 (en) * | 1986-12-02 | 1988-06-09 | Hoechst Ag | ROLLER ELECTRODE AND DEVICE FOR TREATING THE SURFACE OF FILM COATINGS BY MEANS OF ELECTRIC CORONA DISCHARGE |
US5630381A (en) * | 1993-12-27 | 1997-05-20 | Kroyer; Thomas | Animal retention device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB984226A (en) * | 1960-03-28 | 1965-02-24 | Minnesota Mining & Mfg | Apparatus for exposing sheet materials to radiation |
DE1779023C3 (en) * | 1968-06-28 | 1973-09-20 | Klaus 4801 Kuensebeck Kalwar | Device for treating foil webs made of thermoplastic material by means of corona discharges |
DE2540681C3 (en) * | 1975-09-12 | 1979-03-08 | Hoechst Ag, 6000 Frankfurt | Device for the surface treatment of foil webs by means of electrical discharges |
DE2556228A1 (en) * | 1975-12-13 | 1977-06-16 | Hoechst Ag | CORONA DEVICE |
JPS6016614B2 (en) * | 1977-04-18 | 1985-04-26 | 富士写真フイルム株式会社 | Surface treatment method for polyester film for photographic material support |
DE2753711A1 (en) * | 1977-12-02 | 1979-06-07 | Klaus Kalwar | Regulating corona discharge treatment of films - blade electrode is adjusted accurately relative to roller by central regulator |
DE2753750C2 (en) * | 1977-12-02 | 1982-12-23 | Hoechst Ag, 6000 Frankfurt | Device for the surface treatment of foil webs by means of electrical corona discharge |
DE2754425A1 (en) * | 1977-12-07 | 1979-06-13 | Klaus Kalwar | Laminating plastics foils with thermoplastics melt - in form of foil which is exposed to corona discharge in nip of laminating rollers to improve adhesion |
JPS5550034A (en) * | 1978-10-05 | 1980-04-11 | Toray Ind Inc | Surface-treatment of plastic |
FR2477950A1 (en) * | 1980-03-11 | 1981-09-18 | Electricite De France | METHOD AND DEVICE FOR PROCESSING STRIPS OF POLYMERIC MATERIAL BY ELECTRIC SHOCK |
-
1982
- 1982-02-04 DE DE19823203806 patent/DE3203806A1/en not_active Withdrawn
-
1983
- 1983-01-26 DE DE8383100663T patent/DE3360483D1/en not_active Expired
- 1983-01-26 EP EP83100663A patent/EP0086977B1/en not_active Expired
- 1983-02-03 DK DK043383A patent/DK155699C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0086977B1 (en) | 1985-08-07 |
DK43383A (en) | 1983-08-05 |
DE3360483D1 (en) | 1985-09-12 |
DK155699C (en) | 1989-09-25 |
DE3203806A1 (en) | 1983-08-11 |
DK43383D0 (en) | 1983-02-03 |
EP0086977A1 (en) | 1983-08-31 |
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Date | Code | Title | Description |
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PBP | Patent lapsed |