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WO1998031474A1 - Systeme et procede permettant de secher et de solidifier des revetements a base d'eau - Google Patents

Systeme et procede permettant de secher et de solidifier des revetements a base d'eau Download PDF

Info

Publication number
WO1998031474A1
WO1998031474A1 PCT/US1998/000347 US9800347W WO9831474A1 WO 1998031474 A1 WO1998031474 A1 WO 1998031474A1 US 9800347 W US9800347 W US 9800347W WO 9831474 A1 WO9831474 A1 WO 9831474A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
curing
air flow
conveyor
drying unit
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.)
Ceased
Application number
PCT/US1998/000347
Other languages
English (en)
Inventor
Fred G. Scheufler
Richard D. Scheufler
William H. Bayard
Nimalakirthi Rajasinghe
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.)
Optimum Air Corp USA
Original Assignee
Optimum Air Corp USA
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 Optimum Air Corp USA filed Critical Optimum Air Corp USA
Priority to AU63164/98A priority Critical patent/AU6316498A/en
Publication of WO1998031474A1 publication Critical patent/WO1998031474A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
    • B05D3/0413—Heating with air
    • 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
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/283—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun in combination with convection

Definitions

  • This invention relates generally to coating technology, in particular, this invention is a
  • An air atomizing spray gun is typically utilized to rapidly apply paints, industrial coatings and other finishing products to a wide variety of industrial, commercial, and consumer goods.
  • overspray a profusion of transient, airborne particles and associated fumes, generally designated as overspray, are produced during the application process.
  • a dry filtration system utilizing arrestor pads, has commonly been employed to remove
  • Solvent based coatings have commonly been utilized in finishing processes due to the fast
  • an electrostatic spray gun assembly having a positive
  • polarity is utilized to apply dry powder solids to a product having a negative polarity. Due to the
  • High solids coating systems utilize a high viscosity paint emulsion having a high solids to
  • the paint emulsion is generally applied to a product with a high pressure
  • SUB-TimTE SHEET (BULE 28) subsequently cured in a separate drying area using a heat source such as an oven or heat lamps.
  • the coating solids are suspended in a fluid having a
  • drying times are generally much longer than with solvent or dry powder based coatings.
  • the present invention drastically decreases drying and curing time by removal of water
  • a device having a coating thereon is dried through control
  • a radiation source is provided to cure or
  • UV cure coatings do not "dry” like conventional
  • An advantage of this invention is increased productivity
  • wood finishing e.g., clear overprint varnishes and wood
  • plastics e.g., polyvinyl chloride (PVC) foils for wood lamination and PVC for floor
  • coverings e.g., metallic furniture and industrial equipment subject to
  • the apparatus of the present invention includes at least one drying unit having an air flow
  • radiation cure device e.g., N, electron beam, laser, infrared, mercury lamp, and plasma arc.
  • the drying unit removes water from a water based coating and the curing assembly is positioned
  • a single drying unit may be used
  • a first drying unit is positioned to remove
  • drying units and curing assemblies may be customized depending upon the requirements of the coated article.
  • a conveyor For example, a conveyor
  • drying assembly e.g., endless belt conveyor
  • drying units for increased
  • a partitioned housing is
  • the housing may contain
  • the dry rate is important so that the coating does not have deleterious effects such as flaking or not experiencing adequate water removal prior to curing.
  • a method for drying and curing a waterbased coating of the present invention includes
  • SUBSTITUTE SHEET (RULE 28 ⁇ coating by circulating an air flow across said coating while controlling temperature and humidity;
  • Further steps may include: predetermining the type of
  • coating and coating thickness on said device and controlling the temperature, humidity, and air
  • the coatings can be physically dry to touch; 4) zero or reduced toxicology due to reduced
  • Figure 1 shows a side view of the present invention
  • Figure 2 shows a top view of the present invention
  • Figure 3 shows a view along line A-A in Figure 2;
  • Figure 4 shows a view along line B-B in Figure 2;
  • Figure 5 shows a perspective view of the curring assembly
  • Figure 6 shows a side view of the curing lamp assembly.
  • SUBSTITUTE SHEET (RULE 28)
  • the purpose of the system of the present invention is to rapidly dry and cure a waterborne
  • the product enters the housing 16 though a first housing
  • first temperature/humidity control unit includes motor 30, blower 32, dehumidifer 34, multistage
  • dehumidifier 34 the moisture in the air condenses on the coil, lowering the relative humidity, and
  • the air 13 then passes through the return dampers 38 and returns to the
  • the curing section 20 is made up of a second housing section 16B and a third
  • the product and conveyor 18 pass through a product conveyor wall
  • the second temperature/humidity control unit 14 is identical to that of the first
  • the second temperature/humidity control unit 14 contains
  • Wall A has openings in the
  • a curing lamp assembly 22, sometimes called an irradiator, is shown in detail in Figures 5
  • the curing lamp assembly 22 normally consists of a sheet metal housing 40, a high
  • the reflector 48 and lamp 44 is supplied to provide a chamber for the passage of air 15 to carry
  • lamp 44 if not evacuated from the housing, may degrade the lamp 44 and/or distort the reflector
  • a separate lens assembly 46 is sometimes provided between the lamp and the product to be
  • temperature/humidity control unit 14 forces the air through the second housing section 16B and
  • the heat discharged by the lamp assembly mixes with the enclosure air and is
  • the "Wall A" openings 26A and 26B can be metered to control the volume of air by the
  • the panel device 50 is lowered or raised depending on the amount of
  • the Quadrant Diffuser System the openings for the lamp assembly ducts, the bypass
  • enclosure air and, to some extent, the product/conveyor openings can all be varied to meet the requirements of the application.
  • the photo-initiators in the coating initiate a
  • a sensor 60 Located in the third housing section 16C is a sensor 60 which is tied by a feedback loop to
  • the sensor monitors the humidity level
  • the sensor could be any type of the operating conditions.
  • the sensor could be any type of the operating conditions.
  • the sensor could be any type of the operating conditions.
  • One sensor 60 could be used or multiple sensors spread thoughout the system 10 could be used.
  • the product is carried by the conveyor 18 through

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Coating Apparatus (AREA)

Abstract

Cette invention concerne un appareil et un procédé permettant de sécher et de solidifier rapidement un revêtement à base d'eau. Ce revêtement est appliqué à l'aide d'un pistolet vaporisateur (11), ou autre système, sur un produit qui se déplace sur une piste de transporteur (18) continue et mobile. La piste du transporteur (18) passe par une section de séchage (19) qui utilise de l'air recyclé et filtré afin de sécher le revêtement, puis par une section de solidification (20) qui utilise un irradiateur (22) et un flux d'air afin de solidifier rapidement ledit revêtement.
PCT/US1998/000347 1997-01-15 1998-01-14 Systeme et procede permettant de secher et de solidifier des revetements a base d'eau Ceased WO1998031474A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63164/98A AU6316498A (en) 1997-01-15 1998-01-14 System and method for drying and curing waterbased coatings

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78242797A 1997-01-15 1997-01-15
US08/782,427 1997-01-15

Publications (1)

Publication Number Publication Date
WO1998031474A1 true WO1998031474A1 (fr) 1998-07-23

Family

ID=25126015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/000347 Ceased WO1998031474A1 (fr) 1997-01-15 1998-01-14 Systeme et procede permettant de secher et de solidifier des revetements a base d'eau

Country Status (2)

Country Link
AU (1) AU6316498A (fr)
WO (1) WO1998031474A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006327A3 (fr) * 1998-12-04 2001-12-05 Voith Paper Patent GmbH Séchage de bandes fibreuses
DE10045608A1 (de) * 2000-09-15 2002-03-28 Volkswagen Ag Verfahren und Vorrichtung zum Trocknen einer lackierten Kraftfahrzeugkarosserie
WO2002070973A1 (fr) * 2001-03-01 2002-09-12 Adphos Procede de production d'un revetement sur une bande de materiau transportee en quasi-continu
WO2003002922A1 (fr) * 2001-06-29 2003-01-09 Adphos Advanced Photonics Technologies Ag Procede et dispositif de sechage et/ou de reticulation ou de chauffage par rayonnement electromagnetique
ITGO20100006A1 (it) * 2010-10-12 2012-04-12 Klimaref Snc Di Vidal Paolo E Danie Lis David Sistema di deumidificazione industriale per collanti ad acqua
EP3381574A1 (fr) * 2017-03-31 2018-10-03 Vestel Elektronik Sanayi ve Ticaret A.S. Durcissement de films de peinture à base aqueuse

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499229A (en) * 1967-02-25 1970-03-10 Cotton Silk & Man Made Fibres Process control systems
US4216592A (en) * 1978-09-15 1980-08-12 George Koch Sons, Inc. Drying oven
US4250629A (en) * 1979-02-21 1981-02-17 Lewis Donald C Lumber conditioning kiln
US4336279A (en) * 1978-07-04 1982-06-22 Metzger Wesley A Apparatus and process for drying and curing coated substrates
US4581244A (en) * 1983-03-11 1986-04-08 Apptech Equipment Pty., Limited Curing of surface coatings
US4591517A (en) * 1984-06-08 1986-05-27 Overly, Inc. Web dryer with variable ventilation rate
US4927663A (en) * 1986-07-30 1990-05-22 Small Products Limited Method for minimizing curling in screen printing
US5215625A (en) * 1992-03-02 1993-06-01 Burton R Edward Method for producing articles from waste fiber, waste/surplus paint, and waste/surplus ink
US5243255A (en) * 1990-10-24 1993-09-07 Mitsubishi Denki Kabushiki Kaisha Cathode-ray tube with low reflectivity film

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3499229A (en) * 1967-02-25 1970-03-10 Cotton Silk & Man Made Fibres Process control systems
US4336279A (en) * 1978-07-04 1982-06-22 Metzger Wesley A Apparatus and process for drying and curing coated substrates
US4216592A (en) * 1978-09-15 1980-08-12 George Koch Sons, Inc. Drying oven
US4250629A (en) * 1979-02-21 1981-02-17 Lewis Donald C Lumber conditioning kiln
US4581244A (en) * 1983-03-11 1986-04-08 Apptech Equipment Pty., Limited Curing of surface coatings
US4591517A (en) * 1984-06-08 1986-05-27 Overly, Inc. Web dryer with variable ventilation rate
US4927663A (en) * 1986-07-30 1990-05-22 Small Products Limited Method for minimizing curling in screen printing
US5243255A (en) * 1990-10-24 1993-09-07 Mitsubishi Denki Kabushiki Kaisha Cathode-ray tube with low reflectivity film
US5215625A (en) * 1992-03-02 1993-06-01 Burton R Edward Method for producing articles from waste fiber, waste/surplus paint, and waste/surplus ink

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006327A3 (fr) * 1998-12-04 2001-12-05 Voith Paper Patent GmbH Séchage de bandes fibreuses
US6675494B1 (en) 1998-12-04 2004-01-13 Voith Sulzer Papiertechnik Patent Gmbh System for drying a web and process
DE10045608A1 (de) * 2000-09-15 2002-03-28 Volkswagen Ag Verfahren und Vorrichtung zum Trocknen einer lackierten Kraftfahrzeugkarosserie
WO2002070973A1 (fr) * 2001-03-01 2002-09-12 Adphos Procede de production d'un revetement sur une bande de materiau transportee en quasi-continu
WO2003002922A1 (fr) * 2001-06-29 2003-01-09 Adphos Advanced Photonics Technologies Ag Procede et dispositif de sechage et/ou de reticulation ou de chauffage par rayonnement electromagnetique
ITGO20100006A1 (it) * 2010-10-12 2012-04-12 Klimaref Snc Di Vidal Paolo E Danie Lis David Sistema di deumidificazione industriale per collanti ad acqua
EP3381574A1 (fr) * 2017-03-31 2018-10-03 Vestel Elektronik Sanayi ve Ticaret A.S. Durcissement de films de peinture à base aqueuse

Also Published As

Publication number Publication date
AU6316498A (en) 1998-08-07

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