FI121936B - transfer of powdery particles - Google Patents
transfer of powdery particles Download PDFInfo
- Publication number
- FI121936B FI121936B FI20022029A FI20022029A FI121936B FI 121936 B FI121936 B FI 121936B FI 20022029 A FI20022029 A FI 20022029A FI 20022029 A FI20022029 A FI 20022029A FI 121936 B FI121936 B FI 121936B
- Authority
- FI
- Finland
- Prior art keywords
- particles
- web
- belt
- powdered
- layer
- Prior art date
Links
- 239000002245 particle Substances 0.000 title claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000004381 surface treatment Methods 0.000 claims abstract description 8
- 239000011247 coating layer Substances 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 1
- 230000005684 electric field Effects 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/50—Spraying or projecting
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/087—Arrangements of electrodes, e.g. of charging, shielding, collecting electrodes
-
- 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
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
- B05D1/045—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field on non-conductive substrates
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/64—Addition to the formed paper by contacting paper with a device carrying the material the material being non-fluent at the moment of transfer, e.g. in form of preformed, at least partially hardened coating
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
-
- 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
- B05D1/007—Processes for applying liquids or other fluent materials using an electrostatic field
-
- 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
- B05D2252/00—Sheets
- B05D2252/02—Sheets of indefinite length
-
- 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
- B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
- B05D2401/30—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant
- B05D2401/32—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant applied as powders
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Treatment Of Fiber Materials (AREA)
- Laminated Bodies (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
Jauhemaisten partikkelien siirtoTransfer of powdered particles
Nyt esillä olevan keksinnön kohteena on menetelmä jauhemaisten partikkelien siirtämiseksi rainan pinnalle päällystekerroksen tai kalvoker-roksen muodostamiseksi kuivapintakäsittelyprosessissa, jossa jauhemaiset partikkelit kiinnitetään välialustalle, jolta ne vapautetaan rainalle. Nyt esillä olevan keksinnön kohteena on lisäksi laite päällystekerroksen tai kalvokerroksen muodostamiseksi kuivapintakäsittelyprosessissa, joka laite käsittää välineet jauhemaisten partikkelien varaamiseksi sähköisesti ja välineet varattujen partikkelien kiinnittämiseksi rainaan, jolloin laite käsittää välialustan, jonka pinnalle varatut jauhemaiset partikkelit on järjestetty kiinnitettäviksi ennen kuin ne siirretään rainalle.The present invention relates to a process for transferring powdered particles to a web surface to form a coating layer or film layer in a dry surface treatment process wherein the powder particles are adhered to an intermediate substrate from which they are released to the web. The present invention further relates to a device for forming a coating layer or film layer in a dry surface treatment process comprising means for electrically charging powder particles and means for attaching charged particles to a web, the device comprising an intermediate substrate on which the powder particles are arranged to be fixed.
Kuivapintakäsittelyprosessi käsittää levitysvaiheen, jossa jauhemaiset partikkelit levitetään rainalle. Levitysvaihetta seuraa viimeistelyvaihe, esimerkiksi termomekaaninen kiinnitys. Jauhemaisten partikkelien levityksessä käytetään sähkökenttää jauhepartikkelien siirtämiseksi käsiteltävälle pinnalle ja sähköstaattisen tarttumisen mahdollistamiseksi ennen viimeistelyä. Sekä lopullinen tarttuminen että levitetyn kerroksen pinnan tasoittaminen suoritetaan samanaikaisesti termomekaanisen käsittelyn tai muun sopivan käsittelyn avulla.The dry surface treatment process comprises a step of applying powdered particles to the web. The application step is followed by a finishing step, for example thermomechanical attachment. In the application of powdered particles, an electric field is used to transfer the powder particles to the surface to be treated and to enable electrostatic adhesion prior to finishing. Both the final adhesion and the leveling of the surface of the applied layer are simultaneously performed by thermomechanical treatment or other suitable treatment.
Kuivapintakäsittelyprosessissa jauhemaiset partikkelit levitetään yleensä rainalle puhaltamalla ne vasten rainaa ainakin yhden suutti-men kautta, johon on integroitu varauselimet. Tällaisen levityksen ongelmana voi kuitenkin olla se, että jauhemaisista partikkeleista on vaikea muodostaa tasaista kerrosta rainalle.In the dry surface treatment process, the powder particles are generally applied to the web by blowing against the web through at least one nozzle into which the charging members are integrated. However, the problem with this application may be that it is difficult to form a uniform layer of powdered particles on the web.
Keksinnön mukaiselle menetelmälle on tunnusomaista se, että että vä-lialusta on oleellisesti eristävä päättymätön hihna, jolle jauhemaiset partikkelit kiinnitetään sähköisten voimien avulla. Keksinnön mukaiselle laitteelle on puolestaan tunnusomaista se, että välialusta on oleellisesti eristävä päättymätön hihna.The process of the invention is characterized in that the spacer is a substantially insulating endless belt on which the powder particles are attached by electrical forces. The device according to the invention, in turn, is characterized in that the intermediate substrate is a substantially insulating endless belt.
Välialustan koko pinnalle voidaan saada aikaan tasainen varaus ko-ronavarauksen avulla, mikä tarkoittaa sähköpurkausta sähkökentästä 2 normaalissa paineessa. Sähköisen varauksen seurauksena väliaineen, kuten ilman sähkönjohtavuus lisääntyy huomattavasti. Varatut ionit asettuvat välialustan pinnalle. Välialusta on oleellisesti eristävä, toisin sanoen välialustan resistiivisyys on tietyllä tasolla, jolloin se pystyy varastoimaan sähköisiä varauksia riittävän pitkään. Kun varauksia siirretään ideaaliselle eristävälle pinnalle, pienentää pinnalle kerääntynyt potentiaali Vs ionivirtaa yhtälön \s = AS(V-VS)(V-VS-V0) mukaan, jossa V0 on jännitetaso silloin, kun sähköpurkaus tapahtuu, ja väliaineen sähkönjohtavuus lisääntyy äkkiä. Vakiolle As on annettu arvio jonka mukaan se riippuu vastaanottavan pinnan (välialustan pinnan) eriste-vakiosta (es), ilman ioniliikkuvuudesta (μ), koronajohtimen halkaisijasta (a), ja koronavarauselektrodin ja vastaanottavan pinnan välisestä etäisyydestä (R) seuraavan yhtälön mukaan A ΰπεμ s~ R2\n(R/a) Sähköpurkauksen vaikutuksen tehostamiseksi välialusta voi olla kytketty vastakkaiseen potentiaaliin, joka on suuruudeltaan suurin piirtein samaa luokkaa kuin koronapotentiaali, jolloin ionien liikkuvuus lisääntyy edelleen, ja välialustan potentiaali kasvaa. Koronaelektrodin ja väli-alustan välille syntynyt sähkökenttä kohdistaa voimavaikutuksen jauhemaisiin partikkeleihin jotka tuodaan välialustan yläpuolelle. Voima F = QE, jossa Q on varaus ja E sähkökenttä. Välialustan normaali voima on F= qEz(y,z), jossa q on jauhemaisen partikkelin varaus. Aikaansaatu välialustan sähkökenttä on kuvattu yhtälölläA uniform charge can be achieved over the entire surface of the intermediate substrate by means of a crown charge, which means an electrical discharge from the electric field 2 at normal pressure. As a result of electrical charge, the electrical conductivity of a medium, such as air, increases significantly. The charged ions settle on the surface of the intermediate substrate. The intermediate substrate is substantially insulating, i.e., the intermediate substrate has a certain level of resistivity, allowing it to store electrical charges for a sufficiently long time. When the charges are transferred to an ideal insulating surface, the potential Vs accumulated on the surface decreases the ionic current according to the equation \ s = AS (V-VS) (V-VS-V0), where V0 is the voltage level when electrical discharge occurs and the electrical conductivity of the medium suddenly increases. The constant As is estimated to depend on the dielectric constant (es) of the receiving surface (substrate surface), the ion mobility of the air (μ), the diameter of the corona conductor (a), and the distance (R) between the corona charge electrode and the receiving surface A mukaanπεμ s ~ R2 \ n (R / a) To enhance the effect of the electric discharge, the spacer may be coupled to an opposite potential of approximately the same order of magnitude as the corona potential, thereby further increasing ion mobility and increasing the potential of the spacer. The electric field generated between the corona electrode and the intermediate substrate exerts a force effect on the powder particles introduced above the intermediate substrate. Force F = QE where Q is charge and E is electric field. The normal force of the intermediate support is F = qEz (y, z), where q is the charge of the powdery particle. The resulting intermediate field electric field is represented by the equation
E<=-ir"T’jossa -jL + — £s s Q = välialustan pintavarauksen varaustiheys es = välialustan pintojen välinen suhteellinen permittiivisyys, ed = välialustan pinnan ja elektrodin välinen suhteellinen permittiivisyys, 3 s = välialustan paksuus, ja d = välialustan pinnan ja elektrodin välinen etäisyys.E = = ir "T'where -jL + - £ ss Q = charge density of the substrate surface charge es = relative permittivity between the substrate surfaces, ed = relative permittivity between the substrate surface and the electrode, 3 s = the thickness of the substrate surface and distance between electrode.
Jauhemaisten partikkelien siirtämiseksi rainalle tulee rainan ja jauhemaisten partikkelien olla lähellä toisiaan, ja voima, joka ylittää jauhemaisten partikkelien ja välialustan välisen adheesion ja koheesion, on kohdistettava jauhemaisten partikkelien kerrokseen. Siirto suoritetaan sähköisen kentän avulla. Siirrosta aiheutuvaa jännitettä voidaan kuvata yhtälöllä z P(z) = jq(z')E2(z')dz'+Pm-£3E32 , jOSSa 0 q(z’) = jauhemaisten partikkelien sähköinen varaustiheys kohdassa z’, E2(z’) = sähkökenttä jauhemaisten partikkelien kerroksessa kohdassa z’,In order to transfer the powdered particles to the web, the web and the powdered particles must be close to each other, and the force that exceeds the adhesion and cohesion between the powdered particles and the intermediate substrate must be applied to the powdery particles layer. The transfer is performed by means of an electronic field. The voltage caused by the shift can be represented by z P (z) = jq (z ') E2 (z') dz '+ Pm-£ 3E32, where 0 q (z') = electrical charge density of the powdered particles at z ', E2 (z') ) = electric field in the layer of powdered particles at z ',
Pm = mekaaninen rasitus, E3 = elektrodien välinen sähkökenttä, ε3 = välialustan eristevakio, ja Ε3ε32 = jauhemaisten partikkelien muodostamaan kerrokseen kohdistettu elektrodien aiheuttama sähköinen kuormitus.Pm = mechanical stress, E3 = electric field between electrodes, ε3 = dielectric constant of the substrate, and Ε3ε32 = electrical load applied to the layer of powdered particles by the electrodes.
Siirto tapahtuu kuormituksen ylittäessä adheesio- ja koheesiovoimat. Siirrettävät jauhemaiset partikkelit voivat olla partikkeleita, joista voidaan muodostaa päällystekerros paperirainalle, tai ne voivat olla partikkeleita joista voidaan muodostaa kalvokerros sopivalle rainalle, kuten paperi- tai muovirahalle.The transfer occurs when the load exceeds the adhesion and cohesion forces. The powdered particles to be transferred may be particles which may form a coating layer on a paper web, or they may be particles which may form a film layer on a suitable web such as paper or plastic money.
Välialusta on päättymätön hihna, joka kiertyy ohjaustelojen ympäri lähellä käsiteltävää rainaa. Hihnan pinta on tietyssä potentiaalissa, ja rainalle siirretään vastakkaisessa varauksessa olevat jauhemaiset partikkelit. Hihna on oleellisesti eristävä, koska hihnan tulee säilyttää varauksensa kunnes jauhemaiset partikkelit vapautetaan hihnalta hallitusti. hihna kuljettaa partikkelit kohtaan, jossa ne vapautetaan hihnalta ja kiinnitetään liikkuvaan rainaan. Välialustan ja käsiteltävän rainan ei 4 tarvitse olla kosketuksissa keskenään. Hihnan nopeus on säädetty niin, että kerääntynyt partikkelikerros voidaan siirtää tasaisesti rainalle.The spacer is an endless belt that wraps around the guide rollers near the web to be treated. The belt surface has a certain potential, and powdered particles of opposite charge are transferred to the web. The belt is substantially insulating since the belt must retain its charge until the powder particles are released from the belt in a controlled manner. the belt conveys the particles to a point where they are released from the belt and secured to the moving web. The intermediate substrate and the web 4 to be treated need not be in contact with each other. The belt speed is adjusted so that the accumulated particle layer can be uniformly transferred to the web.
Keksintöä on selostettu viittaamalla kuvaan, joka esittää kaaviollisesti keksinnön mukaista menetelmää ja laitetta.The invention has been described with reference to the figure, which schematically illustrates the method and apparatus of the invention.
Päättymätön hihna 1 kiertyy ohjaustelojen 2 ympärille. Hihnan 1 pinta on varattu koronavarauselektrodilla 3. Varaukseltaan erilaiset jauhemaiset partikkelit kiinnitetään varattuun hihnaan 1 jauheenlevitys-alueella 5. Jauhemaisten partikkelien kerroksen käsittävän hihnan kiertyessä jauhemaisten partikkelien kerros siirtyy sille puolelle, jolla hihna 1 on lähellä rainaa W. Raina W, esimerkiksi paperi- tai muovi-raina, kulkee tuotantolinjalla. Rainan W alapuolella on elektrodi 6 (ylimääräinen koronavarauselektrodi), joka on vastakkaisessa potentiaalissa hihnan 1 partikkelikerrokseen verrattuna, ja jonka potentiaali eroaa hihnan potentiaalista. Tämän seurauksena jauhemaiset partikkelit erotetaan hihnasta 1 ja kiinnitetään liikkuvan rainan W pintaan.The endless belt 1 wraps around the guide rollers 2. The surface of the belt 1 is charged with a corona charge electrode 3. The powdered particles of different charge are attached to the charged belt 1 in the powder application area 5. As the belt comprising the layer of powdered particles rotates, the layer of powdered particles moves to the side line passing through the production line. Below the web W is an electrode 6 (an additional corona charge electrode) which is at opposite potential to the particle layer of belt 1 and has a potential different from that of the belt. As a result, the powder particles are separated from the belt 1 and attached to the surface of the moving web W.
Keksintöä ei ole rajoitettu edellä esitettyyn suoritusmuotoon, vaan keksintö voi vaihdella patenttivaatimusten puitteissa.The invention is not limited to the above embodiment, but may vary within the scope of the claims.
Claims (4)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20022029A FI121936B (en) | 2002-03-14 | 2002-11-14 | transfer of powdery particles |
| PCT/FI2003/000184 WO2003076719A2 (en) | 2002-03-14 | 2003-03-11 | Transferring of powdery particles onto a web |
| AU2003209797A AU2003209797A1 (en) | 2002-03-14 | 2003-03-11 | Transferring of powdery particles onto a web |
| EP03743900A EP1483448B1 (en) | 2002-03-14 | 2003-03-11 | Transferring of powdery particles onto a web |
| AT03743900T ATE422579T1 (en) | 2002-03-14 | 2003-03-11 | TRANSFER OF POWDER PARTICLES TO A FIBER WEB |
| DE60326125T DE60326125D1 (en) | 2002-03-14 | 2003-03-11 | TRANSFER OF POWDER PARTS TO A FIBERGY LINE |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20020479 | 2002-03-14 | ||
| FI20020479A FI118542B (en) | 2002-03-14 | 2002-03-14 | Finishing process |
| FI20022029A FI121936B (en) | 2002-03-14 | 2002-11-14 | transfer of powdery particles |
| FI20022029 | 2002-11-14 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI20022029A0 FI20022029A0 (en) | 2002-11-14 |
| FI20022029A7 FI20022029A7 (en) | 2003-09-15 |
| FI121936B true FI121936B (en) | 2011-06-15 |
Family
ID=26161294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20022029A FI121936B (en) | 2002-03-14 | 2002-11-14 | transfer of powdery particles |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1483448B1 (en) |
| AT (1) | ATE422579T1 (en) |
| AU (1) | AU2003209797A1 (en) |
| DE (1) | DE60326125D1 (en) |
| FI (1) | FI121936B (en) |
| WO (1) | WO2003076719A2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI5706U1 (en) | 2002-11-21 | 2003-02-26 | Patria New Technologies Oy | JTAG test apparatus and testing system |
| FI115548B (en) * | 2004-03-09 | 2005-05-31 | Metso Paper Inc | Material transfer method e.g. surface sizing agent to paper during dry coating process, involves providing charged particles of material in material flow path so that particles are transferred directly or indirectly onto surface of paper |
| FI116799B (en) * | 2004-07-02 | 2006-02-28 | Metso Paper Inc | Method and apparatus for coating a substrate and printed article |
| US7976679B2 (en) | 2004-12-02 | 2011-07-12 | The Procter & Gamble Company | Fibrous structures comprising a low surface energy additive |
| US7459179B2 (en) | 2004-12-02 | 2008-12-02 | The Procter & Gamble Company | Process for making a fibrous structure comprising an additive |
| US7208429B2 (en) | 2004-12-02 | 2007-04-24 | The Procter + Gamble Company | Fibrous structures comprising a nonoparticle additive |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3549403A (en) * | 1968-02-19 | 1970-12-22 | Eastman Kodak Co | Method of coating paper with thermoplastic resins |
| WO1997036049A1 (en) * | 1996-03-26 | 1997-10-02 | Dsm N.V. | Process for coating a board- or paper-like substrate with a powder paint composition |
| SE509109C2 (en) * | 1997-04-21 | 1998-12-07 | Perstorp Ab | Process for the production of abrasion resistant thermosetting laminates |
| DE19830650C1 (en) * | 1998-07-09 | 1999-08-12 | Lohmann Therapie Syst Lts | Dry copying to give bonded active ingredients at a substrate surface for transdermal therapy |
| GB9929946D0 (en) * | 1999-12-17 | 2000-02-09 | Phoqus Limited | Electrostatic application of powder material to solid dosage forms |
| DE19963833A1 (en) * | 1999-12-30 | 2001-07-19 | Sca Hygiene Prod Gmbh | Process for applying treatment chemicals to a flat fiber-based product via a circulating belt and flat products produced therewith |
-
2002
- 2002-11-14 FI FI20022029A patent/FI121936B/en not_active IP Right Cessation
-
2003
- 2003-03-11 EP EP03743900A patent/EP1483448B1/en not_active Expired - Lifetime
- 2003-03-11 AU AU2003209797A patent/AU2003209797A1/en not_active Abandoned
- 2003-03-11 AT AT03743900T patent/ATE422579T1/en active
- 2003-03-11 DE DE60326125T patent/DE60326125D1/en not_active Expired - Lifetime
- 2003-03-11 WO PCT/FI2003/000184 patent/WO2003076719A2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE60326125D1 (en) | 2009-03-26 |
| EP1483448B1 (en) | 2009-02-11 |
| WO2003076719A3 (en) | 2003-12-11 |
| ATE422579T1 (en) | 2009-02-15 |
| WO2003076719A2 (en) | 2003-09-18 |
| AU2003209797A8 (en) | 2003-09-22 |
| FI20022029A7 (en) | 2003-09-15 |
| AU2003209797A1 (en) | 2003-09-22 |
| FI20022029A0 (en) | 2002-11-14 |
| EP1483448A2 (en) | 2004-12-08 |
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