NO168932B - PROCEDURE FOR REMOVING PAINT - Google Patents
PROCEDURE FOR REMOVING PAINT Download PDFInfo
- Publication number
- NO168932B NO168932B NO860747A NO860747A NO168932B NO 168932 B NO168932 B NO 168932B NO 860747 A NO860747 A NO 860747A NO 860747 A NO860747 A NO 860747A NO 168932 B NO168932 B NO 168932B
- Authority
- NO
- Norway
- Prior art keywords
- paint
- dissolved
- nozzle
- agent
- solvent
- Prior art date
Links
- 239000003973 paint Substances 0.000 title claims description 60
- 238000000034 method Methods 0.000 title claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000002904 solvent Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000004042 decolorization Methods 0.000 description 3
- 239000002979 fabric softener Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 101150106375 Far1 gene Proteins 0.000 description 1
- 101100437735 Nocardia farcinica (strain IFM 10152) bla gene Proteins 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- -1 and in part Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- B05D3/10—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 other chemical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
- B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
- B44D3/16—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Cleaning In General (AREA)
- Paints Or Removers (AREA)
- Road Signs Or Road Markings (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Foreliggende oppfinnelse omhandler en fremgangsmåte for fjerning av maling fra en overflate som angitt i krav l's ingress, f.eks. et malingsjikt fra en veggflate på en bygning. The present invention relates to a method for removing paint from a surface as stated in claim 1's preamble, e.g. a layer of paint from a wall surface of a building.
I alle tider har malingsfjerning vært forenet med store vanskeligheter og spesielt fjerning av organiske malinger såsom oljemaling, plastfarger osv. Den tidligere linolje-fargen ble fjernet først når det totale fargesjiktet ble for tykt. Skrape og blåselampe var effektive midler, men arbeidskrevende og ikke helt ufarlige. Selv lut ble brukt i visse tilfeller for å løse opp malingssjiktet, som derpå ble skylt bort med vann. Plastfargenes inntog på markedet innebar at vanskelighetene økte i stor grad. Dels ble det brukt forskjellige plasstoff som bindemidler, dels ble det brukt plastfarger til maling av underlag som ikke egnet seg for denne typen farge. Et velkjent eksempel er "tette" plastfarger på murpuss. At all times, paint removal has been associated with great difficulty and especially the removal of organic paints such as oil paints, plastic paints, etc. The former linseed oil paint was removed only when the total color layer became too thick. Scraping and a blowtorch were effective means, but labor-intensive and not entirely harmless. Even lye was used in certain cases to dissolve the paint layer, which was then washed away with water. The entry of plastic colors into the market meant that the difficulties increased to a great extent. In part, different plastics were used as binders, and in part, plastic colors were used to paint substrates that were not suitable for this type of color. A well-known example is "dense" plastic paints on brick plaster.
De hittil1 vanligste fargefjerningsmetoder er blistring, høytrykksvask av ulike slag samt anvendelse av malingsfjer-nemidler som ble skylt bort sammen med fargen, ofte med en væske under høyt trykk. Av forklarlige grunner er ingen av disse metoder anvendelige innendørs uten at meget omfattende beskyttelsesforanstaltninger foretas. For anvendelse utendørs har alle de nevnte metoder vist seg å gi større eller mindre skade på underlaget. Spesielt gjelder dette plastfargebelagt murpuss. The most common color removal methods so far1 are blistering, high-pressure washing of various kinds and the use of paint removers that are washed away together with the color, often with a liquid under high pressure. For obvious reasons, none of these methods are applicable indoors without very extensive protective measures being taken. For outdoor use, all of the aforementioned methods have been shown to cause more or less damage to the substrate. This applies in particular to plaster of paris coated with plastic colour.
De tre kjente metoder later meget tilbake å ønske med hensyn til miljøet. Både for den som arbeider med de gjeldende metoder og for miljøet i sin alminnelighet. Omfattende beskyttelsesforanstaltninger er nødvendige for at støv, vannsøl eller kjemikalier ikke skal spres rundt det aktuelle objekt. The three known methods leave much to be desired with regard to the environment. Both for those who work with the current methods and for the environment in general. Comprehensive protective measures are necessary so that dust, water spills or chemicals are not spread around the object in question.
Hos en stor del av det offentlige miljø finnes videre et behov for en smidig og billig fremgangsmåte for malingsfjerning. Det offentlige miljø utsettes for omfattende kludring, der sprayfarge, spritpenner etc. er de hyppigste kludre redskaper. I dag finnes imidlertid ingen smidig og billig fargefjerningsmetode i det hele tatt. In a large part of the public environment, there is also a need for a flexible and cheap method for paint removal. The public environment is exposed to extensive messing, where spray paint, alcohol pens etc. are the most frequent messy tools. Today, however, there is no flexible and cheap color removal method at all.
I patentlitteraturen har fjerning av maling ved hjelp av en kjemisk-mekanisk metode blitt beskrevet i US Patent 932.738. Metoden innebærer at fargefjerningsmiddel legges ut på den malte overflate, hvoretter et munnstykke anvendes for å fjerne den oppløset malingen. Munnstykket står via en slange i forbindelse med en vakuumkilde i form av en ejektor og en beholder i hvilken den oppløste malingen og malingsfjernemiddelet samles. Metoden har imidlertid ikke fått noen praktisk betydning i løpet av den lange tid som har gått siden patentet ble innvilget, hvilket kan komme av at den blanding av maling og væske som skal transporteres bort fra overflaten, er meget vanskelig å håndtere og ikke uten videre følger med luftstrømmen. In the patent literature, removal of paint using a chemical-mechanical method has been described in US Patent 932,738. The method entails that color remover is laid out on the painted surface, after which a nozzle is used to remove the dissolved paint. The nozzle is connected via a hose to a vacuum source in the form of an ejector and a container in which the dissolved paint and paint remover are collected. However, the method has not gained any practical significance during the long time that has passed since the patent was granted, which may be due to the fact that the mixture of paint and liquid that must be transported away from the surface is very difficult to handle and not without further consequences with the air flow.
Hensikten med foreliggende oppfinnelse er å tilveiebringe en fremgangsmåte for fjerning av maling som ikke har de ulemper som de kjnte metoder oppviser. Denne hensikt oppnås ved en fremgangsmåte der et malingsløsemiddel tilføres på ett eller flere malingssjikt og får virke i løpet av en tid til sjiktet er oppløst, hvorpå den oppløste maling suges bort ved hjelp av vakuum. Fremgangsmåten er særpreget ved de trekk som er angitt i krav 1<1>s karakteriserende del. Det har vist seg fordelaktig å kombinere den kjemiske malingsfjerning med en mekanisk bearbeiding da dette fremmer oppdeling og løsgjørelse av farge fra overflaten. Den mekaniske bearbeidelsen kan eksempelvis skje ved hjelp av et skrapeorgan, børster eller lignende som er anbragt på det munnstykket som anvendes for oppsuging. Tilførsel av skyllemiddel bør, ved fjerning av visse typer maling, helst skje ved det sted av munnstykket der malingen samler seg før den suges bort. Valg av skyllemiddel er avhengig av malingstype. Plasatfarger krever som regel kjemiske midler av forskjellige slag og i blant til og med varmluft, mens vann kan anvendes ved alkalisk maling såsom oljemaling. Vannets temperatur bør i slike tilfeller overstige 40°C. Et etterbehandlingsmiddel kan eventuelt anbringes på overflaten samtidig som det oppløste malingssjiktet suges bort. Et slikt etterbehandlingsmiddel har til hensikt å fjerne rester av malingsløsemiddelet og å nøytralisere overflaten etter fargefjerning slik at et nytt malingssjikt kan anbringes på overflaten uten å skades av eventuelt gjenværende malings-løsemiddel. The purpose of the present invention is to provide a method for removing paint which does not have the disadvantages that the known methods exhibit. This purpose is achieved by a method where a paint solvent is applied to one or more paint layers and allowed to work for a period of time until the layer is dissolved, after which the dissolved paint is sucked away using a vacuum. The method is characterized by the features specified in claim 1<1>'s characterizing part. It has proven advantageous to combine the chemical paint removal with a mechanical processing as this promotes division and detachment of color from the surface. The mechanical processing can, for example, take place with the help of a scraping device, brushes or the like which are placed on the nozzle used for suction. When removing certain types of paint, the supply of rinse aid should ideally take place at the point of the nozzle where the paint collects before it is sucked away. The choice of rinse aid depends on the type of paint. Plasat colors usually require chemical agents of various kinds and sometimes even hot air, while water can be used for alkaline paints such as oil paints. In such cases, the water temperature should exceed 40°C. A finishing agent can optionally be placed on the surface at the same time as the dissolved paint layer is sucked away. The purpose of such a finishing agent is to remove residues of the paint solvent and to neutralize the surface after color removal so that a new layer of paint can be applied to the surface without being damaged by any remaining paint solvent.
Skyllevannet påføres som regel med et relativt lavt trykk som er valgt med hensyn til underlagets karakter, d.v.s. slik at skade ikke oppstår på overflaten og slik at altfor store mengder vann ikke presses inn i eventuelle åpninger i overflaten. The rinsing water is usually applied at a relatively low pressure which is chosen with regard to the nature of the substrate, i.e. so that damage does not occur on the surface and so that excessive amounts of water are not forced into any openings in the surface.
Foreliggende oppfinnelse har den fordel at underlaget, d.v.s. overflaten der malingen er anbragt, skånes. Selv ømfintlige underlag som f.eks. dårlig murpuss, kan rengjøres uten at skader oppstår. Metoden er videre meget raskt og gir et for ommaling direkte anvendbart, tørt og stabilisert underlag. Ved oppfinnelsen oppnås også en maksimal renhet og stabilitet. Her bør det påpekes at selv overflatens ytre porestruktur ved denne fremgangsmåte rengjøres effektivt. The present invention has the advantage that the substrate, i.e. the surface where the paint is applied is spared. Even delicate substrates such as e.g. poor plastering can be cleaned without damage occurring. The method is also very fast and provides a dry and stabilized substrate that can be directly used for repainting. The invention also achieves maximum purity and stability. Here it should be pointed out that even the outer pore structure of the surface is effectively cleaned by this method.
Metoden er spesielt egnet ved fjerning av maling innedørs. Kludder fjernes lett og likeså brannklassert maling ved ommaling av korridorer, trappeoppganger og andre nødutgangs-veier. (Brannklasseringen forutsetter en viss maksimal fargesjikt-tykkelse.) Metoden muliggjør en helt kontrollert og miljøvennlig anvendelse. The method is particularly suitable for removing paint indoors. Smudges are easily removed, as is fire-classified paint when repainting corridors, stairwells and other emergency exit routes. (The fire classification requires a certain maximum color layer thickness.) The method enables a completely controlled and environmentally friendly application.
Oppfinnelsen beskrives nedenfor i form av eksempel i tilknytning til medfølgende figur som skjematisk viser et fullstendig anlegg for bortsugning av maling, tilførsel av etterbehandlingsmiddel samt transport og separering av den oppløste fargen. The invention is described below in the form of an example in connection with the accompanying figure which schematically shows a complete plant for suctioning away paint, supplying finishing agent as well as transporting and separating the dissolved colour.
I figuren betegner 10 en overflate der det er anbragt et malingssjikt 11. På malingssjiktet 11 sprøytes et malings-løsemiddel som får virke en viss tid. Deretter føres et munnstykke 12 over overflaten hvorved munnstykket fortrinnsvis er utstyrt med en fast eller bevegelig børste for mekanisk bearbeidelse av overflaten. Munnstykket 12 står via en slange 13 i forbindelse med en beholder 14 som i sin tur står i forbindelse med en vakuumkilde 15. Munnstykket står dessuten via en slange 16 i forbindelse med en skyllemiddel-beholder 17 fra hvilken skyllemiddel føres til munnstykket gjennom slangen 16. Skyllemiddelbeholderen kan være utstyrt med ikke viste anordninger for oppvarming av skyllemiddelet. Dersom skyllemiddelet er vann, skal dette ha en temperatur som overstiger 40"C, fortrinnsvis 70-90°C. Skyllemiddelet blandes med de oppløste malingsrestene og malingsløsemiddelet og avsuges gjennom slangen 13 til beholderen 14 i hvilken det samles opp. Gjennom å tilpasse den tilførte skyllemiddelmengden til den kapasitet som sugemunnstykket har, er det mulig å utføre malingsfjerningen med minimalt søl. In the figure, 10 denotes a surface on which a paint layer 11 has been placed. A paint solvent is sprayed onto the paint layer 11 which is allowed to act for a certain time. A nozzle 12 is then passed over the surface, whereby the nozzle is preferably equipped with a fixed or movable brush for mechanical processing of the surface. The nozzle 12 is connected via a hose 13 to a container 14 which in turn is connected to a vacuum source 15. The nozzle is also connected via a hose 16 to a rinse aid container 17 from which rinse aid is fed to the nozzle through the hose 16. The fabric softener container can be equipped with devices not shown for heating the fabric softener. If the rinse agent is water, this must have a temperature that exceeds 40°C, preferably 70-90°C. The rinse agent is mixed with the dissolved paint residues and the paint solvent and is sucked off through the hose 13 to the container 14 in which it is collected. By adapting the supplied the amount of rinse aid to the capacity of the suction nozzle, it is possible to carry out the paint removal with minimal spillage.
Blandingen av malingsløsemiddel og skyllemiddel i beholderen 14 kan deretter føres til et renseanlegg 18 i hvilket skyllemiddelet separeres og utgår via et avløp 19 og som eventuelt gjeninnføres til skyllemiddelbeholderen 17. Malingsløsemiddelet og den oppløste malingen kan eventuelt føres videre til en separasjonsenhet 20, i hvilken malings-løsemiddelet separeres fra malingsrestene hvorved malingsrestene føres ut gjennom et avløp 21 og senere behandles i en spesiell anordning for destruksjon av miljøfarlig avfall. Malingsløsemiddelet transporteres til en aktivatorenhet 22 der løsningsmiddelet reaktiveres og føres gjennom et utløp 23 slik at det igjen kan anvendes for malingsoppløsning. The mixture of paint solvent and rinse aid in the container 14 can then be fed to a cleaning system 18 in which the rinse aid is separated and exits via a drain 19 and which is optionally reintroduced to the rinse aid container 17. The paint solvent and the dissolved paint can optionally be fed on to a separation unit 20, in which the paint - the solvent is separated from the paint residues whereby the paint residues are carried out through a drain 21 and later processed in a special device for the destruction of environmentally hazardous waste. The paint solvent is transported to an activator unit 22 where the solvent is reactivated and passed through an outlet 23 so that it can again be used for paint dissolution.
Skyllemiddelbeholderen 17 står via en slange i forbindelse med en beholder 24 for etterbehandlingesmiddel. Dette middel tilføres skyllevannet ved den siste behandlingen av veggen for å gi overflaten en pH-verdi på ca. 7. The rinse aid container 17 is connected via a hose to a container 24 for finishing agent. This agent is added to the rinse water during the last treatment of the wall to give the surface a pH value of approx. 7.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8500998A SE8500998D0 (en) | 1985-03-01 | 1985-03-01 | FERGBORTTAGNINGSFORFARANDE |
Publications (3)
Publication Number | Publication Date |
---|---|
NO860747L NO860747L (en) | 1986-09-02 |
NO168932B true NO168932B (en) | 1992-01-13 |
NO168932C NO168932C (en) | 1992-04-22 |
Family
ID=20359320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO860747A NO168932C (en) | 1985-03-01 | 1986-02-28 | PROCEDURE FOR REMOVING PAINT |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0194242B1 (en) |
JP (1) | JPS61222581A (en) |
DE (1) | DE3666546D1 (en) |
DK (1) | DK167913B1 (en) |
FI (1) | FI860861A (en) |
NO (1) | NO168932C (en) |
SE (1) | SE8500998D0 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE464804B (en) * | 1987-10-07 | 1991-06-17 | Electrolux Ab | HOSE NOZZLE FOR SUCCESSFUL DISSOLUTION AND RESTRICTED SHEET REMAINS |
BR9008019A (en) * | 1990-08-11 | 1993-03-02 | Deutsche Lufthansa | PROCESS FOR THE REMOVAL OF PAINTINGS ON SURFACES |
DE19539394A1 (en) * | 1994-10-13 | 1996-04-25 | Lobeck Concept Ag | Solvent mixt. for removing paint, lacquer or films |
DE19747838C2 (en) * | 1997-10-19 | 2001-07-12 | Gp Granulate Pneumatic Geraete | Method and device for the dry removal of coatings, graffiti or other surface contaminants |
GB2362314A (en) * | 2000-05-16 | 2001-11-21 | Harold Walmsley | Method and apparatus for cleaning up graffiti |
US9355100B2 (en) * | 2008-09-22 | 2016-05-31 | Qualcomm Incorporated | Methods and apparatus for reconciling versions of media context lists in communications networks |
AU2018348018B2 (en) | 2017-10-09 | 2022-09-29 | Owens Corning Intellectual Capital, Llc | Aqueous binder compositions |
CA3075644A1 (en) | 2017-10-09 | 2019-04-18 | Owens Corning Intellectual Capital, Llc | Aqueous binder compositions |
US11813833B2 (en) | 2019-12-09 | 2023-11-14 | Owens Corning Intellectual Capital, Llc | Fiberglass insulation product |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US932738A (en) * | 1909-05-19 | 1909-08-31 | John M Wilson | Process of removing finish. |
JPS56101900A (en) * | 1980-01-16 | 1981-08-14 | Osaka Shiyariyou Kogyo Kk | Method and device for exfoliating film |
JPS57207580A (en) * | 1981-06-12 | 1982-12-20 | Tokyo Isuzu Jidosha Kk | High pressure washing car for sewer pipe which purifies and reuses water containing filth in sewer pipe |
DE3133809A1 (en) * | 1981-08-25 | 1983-03-10 | Ernest 1009 Pully Ihringer | Device for stripping paint from objects |
JPS59192654A (en) * | 1983-04-14 | 1984-11-01 | Tokyo Tatsuno Co Ltd | Car washer |
-
1985
- 1985-03-01 SE SE8500998A patent/SE8500998D0/en unknown
-
1986
- 1986-02-20 EP EP19860850059 patent/EP0194242B1/en not_active Expired
- 1986-02-20 DE DE8686850059T patent/DE3666546D1/en not_active Expired
- 1986-02-25 DK DK87786A patent/DK167913B1/en not_active IP Right Cessation
- 1986-02-25 JP JP3844886A patent/JPS61222581A/en active Pending
- 1986-02-28 FI FI860861A patent/FI860861A/en not_active Application Discontinuation
- 1986-02-28 NO NO860747A patent/NO168932C/en unknown
Also Published As
Publication number | Publication date |
---|---|
DK167913B1 (en) | 1994-01-03 |
EP0194242B1 (en) | 1989-10-25 |
DK87786A (en) | 1986-09-02 |
DK87786D0 (en) | 1986-02-25 |
NO860747L (en) | 1986-09-02 |
SE8500998D0 (en) | 1985-03-01 |
FI860861A0 (en) | 1986-02-28 |
FI860861A (en) | 1986-09-02 |
EP0194242A3 (en) | 1987-06-24 |
DE3666546D1 (en) | 1989-11-30 |
EP0194242A2 (en) | 1986-09-10 |
NO168932C (en) | 1992-04-22 |
JPS61222581A (en) | 1986-10-03 |
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