FR2496680A1 - PROCESS FOR THE MANUFACTURE OF THIN PEELABLE PROTECTIVE FILMS BY SPRAYING A LIQUEFIED THERMOPLASTIC SUBSTANCE AND THIN FILM OF PEELABLE FILM MANUFACTURED THEREBY - Google Patents
PROCESS FOR THE MANUFACTURE OF THIN PEELABLE PROTECTIVE FILMS BY SPRAYING A LIQUEFIED THERMOPLASTIC SUBSTANCE AND THIN FILM OF PEELABLE FILM MANUFACTURED THEREBY Download PDFInfo
- Publication number
- FR2496680A1 FR2496680A1 FR8123455A FR8123455A FR2496680A1 FR 2496680 A1 FR2496680 A1 FR 2496680A1 FR 8123455 A FR8123455 A FR 8123455A FR 8123455 A FR8123455 A FR 8123455A FR 2496680 A1 FR2496680 A1 FR 2496680A1
- Authority
- FR
- France
- Prior art keywords
- spraying
- substance
- thermoplastic
- wax
- sintered
- 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.)
- Granted
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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/20—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
-
- 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
-
- 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
- B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
- B05D1/322—Removable films used as masks
- B05D1/325—Masking layer made of peelable film
Abstract
L'INVENTION CONCERNE UN PROCEDE DE FABRICATION DE MINCES FILMS PELABLES DE PROTECTION PAR PULVERISATION D'UNE SUBSTANCE THERMOPLASTIQUE EXEMPTE DE SOLVANTS FONDUE AVANT PULVERISATION SUR UNE SURFACE, FILMS PELABLES DE PROTECTION DESTINES A ASSURER UNE PROTECTION EFFICACE, EN PARTICULIER CELLE DE SURFACES SENSIBLES A LA CORROSION.THE INVENTION CONCERNS A PROCESS FOR THE MANUFACTURING OF THIN PELABLE PROTECTION FILMS BY SPRAYING A THERMOPLASTIC SUBSTANCE FREE OF MELTED SOLVENTS BEFORE SPRAYING ON A SURFACE, PELABLE PROTECTIVE FILMS INTENDED TO ENSURE EFFECTIVE PROTECTION OF THE SURFACE SENSITIVE, IN PARBTICULAR PARBTICULAR. CORROSION.
Description
L'invention concerne un procédé de fabrication de minces filmsThe invention relates to a method for manufacturing thin films.
pelables de protection par pulvérisation d'une substance (ou liant) thermo- protective peelable by spraying a substance (or binder) thermo
plastique liquéfiée, exempte de solvants, telle que cire, paraffine, mélanges cire/paraffine ou équivalent sur une surface ainsi que la couche mince de film pelàble de protection ainsi fabriquée destinée à assurer une protection liquefied plastic, free from solvents, such as wax, paraffin, wax / paraffin mixtures or equivalent on a surface as well as the thin layer of protective film thus produced intended to provide protection
efficace, en particulier celle de surfaces sensibles à la corrosion. effective, in particular that of surfaces sensitive to corrosion.
Pour fabriquer de tels films pelables de protection, normalement d'une épaisseur d'un ordre de grandeur mesurable en pm, on connatt en général To make such peelable protective films, normally of a thickness of an order of magnitude measurable in pm, it is generally known
le procédé de fabrication utilisant des solutions, émulsions ou des disper- the manufacturing process using solutions, emulsions or dispersants
sions de la substance constituant le film, c'est-à-dire des liquides pulvé- of the substance constituting the film, i.e. sprayed liquids
risables. De tels films pelables de protection sont par exemple utilisés tout particulièrement dans le domaine de la construction automobile pour la conservation des voitures.neuves. Il est Ici nécessaire que le solvant ou l'agent de dispersion puisse se dégager de la substance pulvérisée, pour que celle-ci, également dénommée en abrégé liant, puisse former un film suffisamment résistant. Les matières volatiles se dégagent du film pulvérisé par des tubes capillaires ultra-fins qui traversent le film de façon uniforme et qui l'emp&chent de former une couche fermée, parfaitement homogène. A cela s'ajoute le fait que, du point de vue écologique, les matières volatiles qui laughable. Such peelable protective films are for example used very particularly in the field of automobile construction for the preservation of new cars. It is necessary here that the solvent or the dispersing agent can be released from the pulverized substance, so that the latter, also called abbreviated as a binder, can form a sufficiently resistant film. Volatile matter is released from the sprayed film by ultra-thin capillary tubes which pass through the film uniformly and prevent it from forming a closed, perfectly homogeneous layer. Added to this is the fact that, from an ecological point of view, the volatile matter which
sont partiellement inflammables et partiellement nuisibles a la santé cons- are partially flammable and partially harmful to health
tituent une charge sur l'environnement si bien que de nombreuses mesures de protection telles que par exemple l'ordonnance de filtres spéciaux et/ou de mesures de sécurité spéciales comme la protection contre les explosions sont place a burden on the environment so that many protective measures, such as the ordering of special filters and / or special safety measures such as explosion protection, are
nécessaires pour pouvoir exploiter sans danger des installations de pulvé- necessary for the safe operation of spraying installations
risation de ce genre.of this kind.
En outre, on connatt le procédé selon lequel des granulats appli- In addition, the process by which aggregates are applied is known.
qués sur une surface sont frittés pour former une couche superficielle lisse et fermée. Ces procédés connus ne permettent pas de travailler sur des surfaces, sur lesquelles la force de gravité agit, sans avoir recours à des ques on a surface are sintered to form a smooth and closed surface layer. These known methods do not allow working on surfaces, on which the force of gravity acts, without having recourse to
mesures spéciales, telles que par exemple la charge électrostatique. special measures, such as for example electrostatic charge.
Par contre, la présente invention a pour but de créer un procédé permettant une fabrication de façon continue tout en étant non-polluante de On the other hand, the object of the present invention is to create a process allowing continuous production while being non-polluting.
films pelables de protection de haute qualité à surface fermée. High quality peelable protective films with closed surface.
A cet effet, l'invention concerne un procédé selon lequel la substance thermoplastique est fondue avant d'#tre pulvérisée, est ensuite pulvérisée, une fois fondue, sur la surface à protéger et est frittée sur celle-ci. To this end, the invention relates to a process according to which the thermoplastic substance is melted before being sprayed, is then sprayed, once melted, on the surface to be protected and is sintered thereon.
De plus, l'invention prévoit pour atteindre le but fixé une cou- In addition, the invention provides to achieve the goal set a cou-
che mince de film pelable de protection pour les surfaces, notamment celles thin layer of peelable protective film for surfaces, especially those
des véhicules automobiles, qui est fabriquée par pulvérisation d'une substan- motor vehicle, which is manufactured by spraying a substan-
ce ou liant thermoplastique, telle que cirej paraffine, mélanges cire/paraf- ce or thermoplastic binder, such as paraffin wax, wax / paraffin mixtures
fine etc..., fondue avant pulvérisation et frittée sur la surface après pulvérisation. Ce procédé permet l'utilisation des pistolets pulvérisateurs à chaud traditionnels, dans lesquels le liant est fondu et donc liquéfié, ce fine etc ..., melted before spraying and sintered on the surface after spraying. This process allows the use of traditional hot spray guns, in which the binder is melted and therefore liquefied, this
après quoi il peut 8tre immédiatement appliqué sur la surface à protéger. after which it can be immediately applied to the surface to be protected.
La tendance qu'ont ces substances à former des nodules, une fois appliquées sur la surface, ne donnerait pas un film suffisamment homogène s'il ntétàit pas remédié à ce fait d'une façon très simple en procédant au frittage simultanément ou immédiatement après, ce qui permet d'obtenir une surface lisse, homogène et solide de manière absolument uniforme. Il n'y a plus de pores dans ce film-pelable de protection, même s'il est appliqué sous la forme la plus mince qui soit. C'est ainsi que sont supprimés les risques de danger ainsi que la charge sur l'environnement provoqués par le dégagement The tendency of these substances to form nodules, once applied to the surface, would not give a sufficiently homogeneous film if it had not been remedied this fact in a very simple manner by sintering simultaneously or immediately after, which makes it possible to obtain a smooth, homogeneous and solid surface in an absolutely uniform manner. There are no more pores in this protective peelable film, even if it is applied in the thinnest form possible. This eliminates the risk of danger and the burden on the environment caused by the release.
de solvants ou d'agents de dispersion. solvents or dispersing agents.
Pour obtenir que les opérations se déroulent de façon simple et fonctionnelle, la fusion de la substance thermoplastique a lieu de préférence To obtain that the operations take place in a simple and functional manner, the melting of the thermoplastic substance preferably takes place
Immédiatement avant la pulvérisation, ce que permettent les pistoles pulvé- Immediately before spraying, which the spray guns allow
risateurs à chaud traditionnels.traditional hot risers.
Pour le frittage de la substance thermoplastique, il s'est avérée avantageux d'exécuter le frittage en chauffant la substance thermoplastique For the sintering of the thermoplastic substance, it has proved advantageous to carry out the sintering by heating the thermoplastic substance
pulvérisée pour obtenir ainsi un enduit uniforme, lisse et sans porosités. sprayed to obtain a uniform, smooth coating without porosity.
Certes, il est également possible, dans des cas d'utilisation très simples, comme par ex. pour la pulvérisation sur des t8les parfaitement planes et non-façonnées, d'effectuer le frittage de façon mécanique ou pneumatique, cependant, ce cas d'utilisation ne se trouve que rarement dans la pratique, de tels films pelables de protection n'étant en général appliqués que sur des t8les façonnées, comme c'est le cas pour la construction de carrosseries, un frittage mécanique ou pneumatique ne pouvant donc alors ttre effectué Admittedly, it is also possible, in very simple use cases, such as e.g. for spraying on perfectly flat and unshaped sheets, to perform the sintering mechanically or pneumatically, however, this use case is only rarely found in practice, such peelable protective films being generally applied only on shaped sheets, as is the case for the construction of bodies, mechanical or pneumatic sintering cannot therefore be carried out
qu'au prix d'efforts techniques importants. that at the cost of significant technical efforts.
La chaleur nécessaire au frittage peut être fournie 3 la subs- The heat necessary for sintering can be supplied 3
tance thermoplastique de l'extérieur par rayonnement thermique, amenée d'air chaud ou équivalent; cependant, il est également possible de fournir à la thermoplastic material from the outside by thermal radiation, supplied with hot air or equivalent; however, it is also possible to provide the
substance thermoplastique la chaleur par exemple par énergie H.F. ou équi- thermoplastic substance heat, for example by H.F. or equivalent energy
valent. Pour certains cas d'utilisation, il peut ttre opportun de pulvériser la substance thermoplastique sur une surface auparavant chauffée, de façon à ce que le processus de frittage puisse etre effectué simultanément avec la pulvérisation, ce qui permet d'obtenir un déroulement des opérations optimal are worth. For some use cases, it may be advisable to spray the thermoplastic substance on a previously heated surface, so that the sintering process can be carried out simultaneously with the spraying, which allows an optimal workflow to be obtained.
du point de vue temporaire.from a temporary point of view.
Les avantages que permet d'obtenir le procédé de linveftion consistent en la combinaison de deux démarches opératoires bien contrôlables, J savoir la combinaison de la pulvérisation à chaud de la substance fusible The advantages which the linveftion process allows to obtain consist in the combination of two well controllable operating procedures, namely the combination of hot spraying of the fusible substance.
et du frittage de celle-ci, ce qui permet de fabriquer d'une façon substan- and sintering thereof, which makes it possible to manufacture substantially
tiellement plus facile qu'auparavant, avec des appareils et machines en substance traditionnels, de minces films pelables de protection pour les surfaces sensibles à la corrosion o à la destruction d'un autre type.et thi easier than before, with essentially traditional devices and machines, thin peelable protective films for surfaces susceptible to corrosion or destruction of another type. and
de garantir ainsi à la fois une non-pollution et une sécurité optimales. thus guarantee both non-pollution and optimum safety.
La procedé peut 9tre utilisé tout particulièrement pour la conservation des The process can be used particularly for the preservation of
véhicules automobiles.motor vehicles.
Le procédé de la présente invention est décrit plus en détail à l'aide de l'exemple de réalisation suivant: g d'un mélange de paraffine et cire chauffé à 433 K (point de solidification 333 K) sont pulvérisés à l'aide d'un pistolet pulvérisateur The process of the present invention is described in more detail using the following embodiment: g of a mixture of paraffin and wax heated to 433 K (solidification point 333 K) are sprayed using '' a spray gun
à chaud sur une t8le métallique d'une surface de 1 m2* La pression d'injec- hot on a metal sheet with a surface area of 1 m2 * The injection pressure
tion est d'environ 50 bar. La buse 3 injection donne un angle d'injection tion is about 50 bar. The 3 injection nozzle gives an injection angle
d'environ 600 et se trouve à une distance de 50 cm de la surface à enduire. about 600 and is at a distance of 50 cm from the surface to be coated.
La surface est propre, sèche et exempte d'agents séparateurs. Les particules vaporisées adhérent a la surface et forment, tout en étant réparties de façon uniforme sur la surface, une couche "rugueuse" non fermée. La substance ainsi pulvérisée est fondue par l'amenée d'air chaud à une température de 373 K et frittée en l'espace de 90 secondes en un film de protection fermé, The surface is clean, dry and free of separating agents. The vaporized particles adhere to the surface and form, while being uniformly distributed over the surface, an unclosed "rough" layer. The substance thus pulverized is melted by bringing hot air to a temperature of 373 K and sintered in 90 seconds into a closed protective film,
lisse, homogène et sans porosités, d'une épaisseur d'environ 30 à1 40 Dom. smooth, homogeneous and without porosity, with a thickness of about 30 to 140 Dom.
De tels films pelables de protection peuvent Ctre appliqués non seulement sur des tCles métalliques façonnées ou non-façonnées mais aussi sur des surfaces quelconques constituées par d'autres substances nécessitant un revêtement protecteur. L'utilisation du procédé est possible dans les proportions appropriées les plus variées - températures, pression, distance de l'injection - la durée de la solidification après frittace Such peelable protective films can be applied not only to shaped or unshaped metal sheets but also to any surfaces made up of other substances requiring a protective coating. The use of the process is possible in the most varied appropriate proportions - temperatures, pressure, distance of injection - the duration of solidification after sintering
dépendant galement de la substance concernée. also dependent on the substance concerned.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803047727 DE3047727A1 (en) | 1980-12-18 | 1980-12-18 | "METHOD FOR THE PRODUCTION OF THIN PROTECTIVE FILMS BY SPRAYING ON LIQUID THERMOPLASTIC MATERIAL AND THEREFORE PROTECTIVE FILM THICK FILM" |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2496680A1 true FR2496680A1 (en) | 1982-06-25 |
FR2496680B1 FR2496680B1 (en) | 1985-12-27 |
Family
ID=6119494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8123455A Expired FR2496680B1 (en) | 1980-12-18 | 1981-12-15 | PROCESS FOR THE MANUFACTURE OF THIN PEELABLE PROTECTIVE FILMS BY SPRAYING A LIQUEFIED THERMOPLASTIC SUBSTANCE AND THIN FILM OF PEELABLE FILM MANUFACTURED THEREBY |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS57127481A (en) |
AT (1) | AT385684B (en) |
DE (1) | DE3047727A1 (en) |
FR (1) | FR2496680B1 (en) |
GB (1) | GB2092022B (en) |
IT (1) | IT1145238B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0368543A2 (en) * | 1988-11-07 | 1990-05-16 | Minnesota Mining And Manufacturing Company | Processing for coating electrical bus bars and the like |
EP1057543A1 (en) * | 1999-06-04 | 2000-12-06 | Enviropeel International Limited | Process and paste for making a mantel-like removable protection coating |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06285428A (en) * | 1993-03-31 | 1994-10-11 | Hiroyuki Hattori | Wax coating method |
DE102006012392A1 (en) * | 2006-03-17 | 2007-09-20 | Klebchemie, M.G. Becker Gmbh & Co Kg | Hot-liquid polymer as a protective layer on plastic surfaces |
DE102013208235A1 (en) * | 2013-05-06 | 2014-11-06 | Hp Pelzer Holding Gmbh | Method for spray coating |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB846101A (en) * | 1954-12-04 | 1960-08-24 | Minimax Ltd | Improvements in coating fire-extinguisher casings and the like |
FR2008924A1 (en) * | 1968-05-20 | 1970-01-30 | Grace W R Ltd | |
US3746561A (en) * | 1972-02-25 | 1973-07-17 | Continental Oil Co | Strippable coating compositions |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO132627C (en) * | 1972-12-19 | 1975-12-10 | Bjorn Kirkseter |
-
1980
- 1980-12-18 DE DE19803047727 patent/DE3047727A1/en active Granted
- 1980-12-22 AT AT0625880A patent/AT385684B/en active
-
1981
- 1981-12-14 GB GB8137639A patent/GB2092022B/en not_active Expired
- 1981-12-15 FR FR8123455A patent/FR2496680B1/en not_active Expired
- 1981-12-18 JP JP56203829A patent/JPS57127481A/en active Pending
- 1981-12-18 IT IT68642/81A patent/IT1145238B/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB846101A (en) * | 1954-12-04 | 1960-08-24 | Minimax Ltd | Improvements in coating fire-extinguisher casings and the like |
FR2008924A1 (en) * | 1968-05-20 | 1970-01-30 | Grace W R Ltd | |
US3746561A (en) * | 1972-02-25 | 1973-07-17 | Continental Oil Co | Strippable coating compositions |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0368543A2 (en) * | 1988-11-07 | 1990-05-16 | Minnesota Mining And Manufacturing Company | Processing for coating electrical bus bars and the like |
EP0368543A3 (en) * | 1988-11-07 | 1991-08-28 | Minnesota Mining And Manufacturing Company | Processing for coating electrical bus bars and the like |
EP1057543A1 (en) * | 1999-06-04 | 2000-12-06 | Enviropeel International Limited | Process and paste for making a mantel-like removable protection coating |
Also Published As
Publication number | Publication date |
---|---|
IT8168642A0 (en) | 1981-12-18 |
DE3047727A1 (en) | 1982-07-15 |
FR2496680B1 (en) | 1985-12-27 |
ATA625880A (en) | 1987-10-15 |
IT1145238B (en) | 1986-11-05 |
GB2092022A (en) | 1982-08-11 |
DE3047727C2 (en) | 1991-06-27 |
AT385684B (en) | 1988-05-10 |
JPS57127481A (en) | 1982-08-07 |
GB2092022B (en) | 1985-06-05 |
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ST | Notification of lapse |