CA1116397A - Applicator for direct roll coating - Google Patents
Applicator for direct roll coatingInfo
- Publication number
- CA1116397A CA1116397A CA000320934A CA320934A CA1116397A CA 1116397 A CA1116397 A CA 1116397A CA 000320934 A CA000320934 A CA 000320934A CA 320934 A CA320934 A CA 320934A CA 1116397 A CA1116397 A CA 1116397A
- Authority
- CA
- Canada
- Prior art keywords
- layer
- applicator
- fibrous
- tube member
- coating
- 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.)
- Expired
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A paint applicator for direct roll coating of textured panels or sheet-like members comprises a core, a layer of fibrous web material disposed over the core, a protective plastic tube member disposed around the layer of fibrous web material, and a layer of woven material disposed over the protective tube member.
The fibrous web allows for uniform application of the paint film due to its softness and ability to follow contoured surfaces.
The protective tube member prevents paint from penetrating the fiber web. The woven material carries the paint on the roll applicator.
A paint applicator for direct roll coating of textured panels or sheet-like members comprises a core, a layer of fibrous web material disposed over the core, a protective plastic tube member disposed around the layer of fibrous web material, and a layer of woven material disposed over the protective tube member.
The fibrous web allows for uniform application of the paint film due to its softness and ability to follow contoured surfaces.
The protective tube member prevents paint from penetrating the fiber web. The woven material carries the paint on the roll applicator.
Description
~' - ~
~ 63~
BACKGROUND_OF I~IE INVENTION
The subject invention relates to an apparatus for applying a coating material to textured or unevenly surfaced sheet-like materials, and more particularly, to a paint applicator for direct roll coating of textured panel members such as ex~erior siding or interior plywood panels having a contoured surface.
These panels are generally composed of wood or synthetic materiaL
which is intended to simulate a wooden appearance and typically include striations or a plurality of grooves for providing the desired aesthetic effectO In practice, it is desirable that these~
panels have different colors for matching different home decors, and so the panels must be painted or dye coated. It will be appreciated that the painting or dye coating process must be a continuous one for economical reasons and that the method Oc applying the coating must be such that all the crevices in the striations and grooves are thoroughly covered.
There are several techniques now being used for coating textured or unevenly surfaced wood panels. For example, in one i technique the surface of the panel is coated with a knife coater.
The panel is then brushed or subjected to an air blast to remove excess paint This technique has been found to be inefficient, however, because of the loss of paint during the process.
Another technique currently used is spray coating the surface of the panel. It will be appreciated that such a process is also inefficient and that there is a substantial loss of paint.
' ...
3~7 There is also a problem with air pollutlon. ~ further tech-nique used for coating the panels is coating the panel with a rubber or paint type roller. However, with this technique there is poor con-trol of the paint film and inconsistency of results with some of the striations or grooves in the panel being left uncoated. This has been found to be especially true after a period of use when the paint dries on the outer surface of the roller, thus rendering the roller inflexible and unable to penetrate the striations and grooves of the panel.
Accordingly, the subject invention provides a paint applicator for direct roll coating of textured panel members which allows for the uniform application of the paint film, which i.s efficient and in which the paint applied is controlled so as to minimize loss of paint and air pollution.
The invention also provides an applicator for roll -coating textured panel members which is simple in construction and relatively inexpensive to manufacture.
SUMMARY OF THE INVENTION
In accordanae with the above-stated objectives, the subject invention provldes a paint applicator for direct roll coating of textured panels or sheet-like members which comprises .
:
. ~0 ~ 3~ ~
a core member and a layer of fibrous web material disposed over the core. The Eibrous material may be a synthetic or natural fiber which is preferably o~ a web construction held together by a binding a(lhesive. A protec~ive tube member is disposed around the layer of fibrous web materia~ the tube being preferably a thin impervious plastic material such as polyethylene~ A thin layer of woven material, such as woven sock material, is disposed over the protective tube member to complete the construction of the subject roll coater.
BRIEF DESCRIPTION OF THE DRAWINGS
Fi.gure 1 is a front elevational schematic view, sectioned in part, illustrating the operation of the roll coater of the subject invention.
Figure 2 is a side elevational view, sectioned in part, of the roll coater of the subject invention taken along lines
~ 63~
BACKGROUND_OF I~IE INVENTION
The subject invention relates to an apparatus for applying a coating material to textured or unevenly surfaced sheet-like materials, and more particularly, to a paint applicator for direct roll coating of textured panel members such as ex~erior siding or interior plywood panels having a contoured surface.
These panels are generally composed of wood or synthetic materiaL
which is intended to simulate a wooden appearance and typically include striations or a plurality of grooves for providing the desired aesthetic effectO In practice, it is desirable that these~
panels have different colors for matching different home decors, and so the panels must be painted or dye coated. It will be appreciated that the painting or dye coating process must be a continuous one for economical reasons and that the method Oc applying the coating must be such that all the crevices in the striations and grooves are thoroughly covered.
There are several techniques now being used for coating textured or unevenly surfaced wood panels. For example, in one i technique the surface of the panel is coated with a knife coater.
The panel is then brushed or subjected to an air blast to remove excess paint This technique has been found to be inefficient, however, because of the loss of paint during the process.
Another technique currently used is spray coating the surface of the panel. It will be appreciated that such a process is also inefficient and that there is a substantial loss of paint.
' ...
3~7 There is also a problem with air pollutlon. ~ further tech-nique used for coating the panels is coating the panel with a rubber or paint type roller. However, with this technique there is poor con-trol of the paint film and inconsistency of results with some of the striations or grooves in the panel being left uncoated. This has been found to be especially true after a period of use when the paint dries on the outer surface of the roller, thus rendering the roller inflexible and unable to penetrate the striations and grooves of the panel.
Accordingly, the subject invention provides a paint applicator for direct roll coating of textured panel members which allows for the uniform application of the paint film, which i.s efficient and in which the paint applied is controlled so as to minimize loss of paint and air pollution.
The invention also provides an applicator for roll -coating textured panel members which is simple in construction and relatively inexpensive to manufacture.
SUMMARY OF THE INVENTION
In accordanae with the above-stated objectives, the subject invention provldes a paint applicator for direct roll coating of textured panels or sheet-like members which comprises .
:
. ~0 ~ 3~ ~
a core member and a layer of fibrous web material disposed over the core. The Eibrous material may be a synthetic or natural fiber which is preferably o~ a web construction held together by a binding a(lhesive. A protec~ive tube member is disposed around the layer of fibrous web materia~ the tube being preferably a thin impervious plastic material such as polyethylene~ A thin layer of woven material, such as woven sock material, is disposed over the protective tube member to complete the construction of the subject roll coater.
BRIEF DESCRIPTION OF THE DRAWINGS
Fi.gure 1 is a front elevational schematic view, sectioned in part, illustrating the operation of the roll coater of the subject invention.
Figure 2 is a side elevational view, sectioned in part, of the roll coater of the subject invention taken along lines
2-2 of Figure 1.
Fi.gure .~ i.s a cross-sectional view of the roll coater of the subject invention taken along lines 3-3 of Figure 2.
Figure 4 is an enlarged cross-sectional vie~ of the roll coater of the subject invention taken along lines 4-4 of Figure 2.
DETAI~ED DESCRIPTION OF THE PREI<ERRED E~BODIMENTS
Referring to Figure 1, there is illustrated a schematic drawing illustrating a continuous coating appara~us A employing the direct roll coating applica~or of the subject invention, the --. ~ ~
~ ~ ~ 6 ~ ~
applicator being designated generally by reference numeral 10.
As illustrated in Figure 1, the apparatus A includes a moving conveyor belt 7 which carries panel members 6 in succession into contact with roll coater 10. The apparatus ~ also includes a reservoir 2 which contains the coating material 3, and a pair of rollers 4 and 5, roller 4 being partially immersed in coating material 3 Typically, coating material 3 is a paint or dye. ~s rollers 4 and S rotate, they carry coating material 3 from reservoir 2 to the outer surface of roll coater 10. Roll coater 10 in turn rotates along shaEt 11, continuously receives fresh coating material, and applies the coating to the panels 6 passing thereunder along belt 7. It will be appreciated that there are many methods of applying the coating material 3 to the outer surface of roll coater 10 besides that illustrated in Figure 1, and that said illustration is in no way intended to limit the scope of the subject invention.
Turning now to the detailed construction of the subject roll coating applicator, and specifically to Figures 3 and 4, the applicator 10 of the subject invèntion includes a central core member 12, and a layer of fibrous, compressible, plîable material ¦
disposed around the core. Preferably, the fibrous mate-rial is of ¦
a web construction that is held together by a binding adhesive.
The material may be of a natural fiber or formed from a synthetic ¦
material, and can vary in d~nsity and in coarseness according 1 to the desired application. The function of web material 13 will be described in more detail below.
~ 7 Further referring to Figures 3 and 4, a very thin, flexible, tube member 14 is disposed over and around the layer o fibrous web material 13. The tube 14 may be any sui.table flexible, impervious plastic material such as for example, S polyethylene. The final l~yer o the subject applicator 10 comprises a thin layer of woven material 15, preferably woven sock material which is disposed around tube 14. As is sho~ in ~: Figures 3 and 4, the tube 14 and woven material 15 co~prise very thin layers of the subject applicator as comparea to the relatively thick layer of fibrous web material 13.
Referring now to Eigures 2 and 4, and especially to the ¦
enlarged sectional view illustrated i~ Figure 4, it will be noted ; that the surface 8 of panel 6 which comes in contact ~iith rollapplicator 10 is textured and quite lrregular. Hor.~ever, in : 15 accordance with the subject invention, roll applicator 10 is able to completely and uniformly cover the surface 8 of panel 6 with coating material. Referring to Figure 4, it ~ill De noted that the relatively thick layer of fibrous web material which is quite soft and pliable, easily takes the ~orm of, and co~?leLely covers, the crevices in irregular surface 8. The thin, impervious polyethylene tube member 14 which is disposed around fibrous layer 13 prevents any coating material from penetrating layer 13 : ¦ and thus, keeps it in its soft, pliable state at all times.
Because tube 14 is very thin it does not inhib.it the aDility of relatively thick layer 13 from assuming the contours of the panel ~6. The thi d layer of the subiect applicator lO is the layer or _5_ ~ 3~7 woven sock material 15 which receives the coating material from rollers 4 and 5 (see Figure 1), carries the coating material, and applies it to the panels 6. Because woven layer 15 is also quite thin relat-ive to Eibrous layer 13, there is no inhibition of fiber S 13 from fully assuming the contours of panel 6 so as to completely coat the panel.
In summary, the subject invention provides an improved means for coating textured or uneven panel surfaces. The subject roll coating applicator includes a relatively thick layer of a fibrous web material which permits uniform application of a coating film to a panel due to the softness of the web material and its ability to follow contoured surfaces. The subject applicator also includes a very thin protective covering over the ¦
fibrous web layer which prevents the coating material from penetrating the fiber web. Thus, there is no loss of the soft construction of the fiber after periods of use and drying of the applicator. The subject applicator is simple in construction and ¦
¦relatively inexpensive to manufacture, and can be made to fit standard direct roll coaters.
While the preferred embodiment of the subject invention has been described and illustrated, it would be obvious that various changes and modifications can be made therein without departing from the spirit of the invention which should be limited¦
only by the scope of the appended claims.
Fi.gure .~ i.s a cross-sectional view of the roll coater of the subject invention taken along lines 3-3 of Figure 2.
Figure 4 is an enlarged cross-sectional vie~ of the roll coater of the subject invention taken along lines 4-4 of Figure 2.
DETAI~ED DESCRIPTION OF THE PREI<ERRED E~BODIMENTS
Referring to Figure 1, there is illustrated a schematic drawing illustrating a continuous coating appara~us A employing the direct roll coating applica~or of the subject invention, the --. ~ ~
~ ~ ~ 6 ~ ~
applicator being designated generally by reference numeral 10.
As illustrated in Figure 1, the apparatus A includes a moving conveyor belt 7 which carries panel members 6 in succession into contact with roll coater 10. The apparatus ~ also includes a reservoir 2 which contains the coating material 3, and a pair of rollers 4 and 5, roller 4 being partially immersed in coating material 3 Typically, coating material 3 is a paint or dye. ~s rollers 4 and S rotate, they carry coating material 3 from reservoir 2 to the outer surface of roll coater 10. Roll coater 10 in turn rotates along shaEt 11, continuously receives fresh coating material, and applies the coating to the panels 6 passing thereunder along belt 7. It will be appreciated that there are many methods of applying the coating material 3 to the outer surface of roll coater 10 besides that illustrated in Figure 1, and that said illustration is in no way intended to limit the scope of the subject invention.
Turning now to the detailed construction of the subject roll coating applicator, and specifically to Figures 3 and 4, the applicator 10 of the subject invèntion includes a central core member 12, and a layer of fibrous, compressible, plîable material ¦
disposed around the core. Preferably, the fibrous mate-rial is of ¦
a web construction that is held together by a binding adhesive.
The material may be of a natural fiber or formed from a synthetic ¦
material, and can vary in d~nsity and in coarseness according 1 to the desired application. The function of web material 13 will be described in more detail below.
~ 7 Further referring to Figures 3 and 4, a very thin, flexible, tube member 14 is disposed over and around the layer o fibrous web material 13. The tube 14 may be any sui.table flexible, impervious plastic material such as for example, S polyethylene. The final l~yer o the subject applicator 10 comprises a thin layer of woven material 15, preferably woven sock material which is disposed around tube 14. As is sho~ in ~: Figures 3 and 4, the tube 14 and woven material 15 co~prise very thin layers of the subject applicator as comparea to the relatively thick layer of fibrous web material 13.
Referring now to Eigures 2 and 4, and especially to the ¦
enlarged sectional view illustrated i~ Figure 4, it will be noted ; that the surface 8 of panel 6 which comes in contact ~iith rollapplicator 10 is textured and quite lrregular. Hor.~ever, in : 15 accordance with the subject invention, roll applicator 10 is able to completely and uniformly cover the surface 8 of panel 6 with coating material. Referring to Figure 4, it ~ill De noted that the relatively thick layer of fibrous web material which is quite soft and pliable, easily takes the ~orm of, and co~?leLely covers, the crevices in irregular surface 8. The thin, impervious polyethylene tube member 14 which is disposed around fibrous layer 13 prevents any coating material from penetrating layer 13 : ¦ and thus, keeps it in its soft, pliable state at all times.
Because tube 14 is very thin it does not inhib.it the aDility of relatively thick layer 13 from assuming the contours of the panel ~6. The thi d layer of the subiect applicator lO is the layer or _5_ ~ 3~7 woven sock material 15 which receives the coating material from rollers 4 and 5 (see Figure 1), carries the coating material, and applies it to the panels 6. Because woven layer 15 is also quite thin relat-ive to Eibrous layer 13, there is no inhibition of fiber S 13 from fully assuming the contours of panel 6 so as to completely coat the panel.
In summary, the subject invention provides an improved means for coating textured or uneven panel surfaces. The subject roll coating applicator includes a relatively thick layer of a fibrous web material which permits uniform application of a coating film to a panel due to the softness of the web material and its ability to follow contoured surfaces. The subject applicator also includes a very thin protective covering over the ¦
fibrous web layer which prevents the coating material from penetrating the fiber web. Thus, there is no loss of the soft construction of the fiber after periods of use and drying of the applicator. The subject applicator is simple in construction and ¦
¦relatively inexpensive to manufacture, and can be made to fit standard direct roll coaters.
While the preferred embodiment of the subject invention has been described and illustrated, it would be obvious that various changes and modifications can be made therein without departing from the spirit of the invention which should be limited¦
only by the scope of the appended claims.
Claims (13)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An applicator for direct roll coating of textured panels or sheet-like members comprising a core; a layer of fibrous pliable material of a web construction held together by a binding adhesive, said fibrous layer being disposed over said core; a protective tube member disposed around said layer of fibrous web material, said tube member having a much smaller thickness than said layer of fibrous material, said tube member being of a pliable, impervious plastic material; and a layer of woven material disposed over said protective tube member, said layer of woven material being much smaller in thickness than the layer of fibrous material.
2. An applicator as recited in claim 1 in which said layer of fibrous material is made from a synthetic material.
3. An applicator as recited in claim 1 in which said layer of fibrous material is made from a natural fiber.
4. An applicator as recited in claim 1 in which said tube member is made from polyethylene.
5. An applicator as recited in claim 1 in which said layer of woven material is made from a woven sock material.
6. An applicator for direct roll coating of textured panels or sheet like members comprising a central core member, a layer of fibrous, pliable material having a web construction held together by a binding adhesive, said fibrous layer being disposed over said core member; a protective polyethylene tube member disposed around said layer of fibrous web material, said tube member having a thickness much smaller than the thickness of said layer of fibrous web material, and a layer of woven sock material disposed over said protective tube member, said layer of woven sock material having a thickness much smaller than the thickness of said layer of fibrous web material.
7. An apparatus for continuous direct roll coating of textured panels or sheet-like members comprising in combination: a roll applicator; means for continuously applying coating material to said applicator, and means for continuously bringing the panels into contact with said applicator, said applicator including a central core; a relatively thick layer of soft, fibrous, compressi-ble and pliable material having a web construction held together by a binding adhesive, said fibrous layer being disposed over said core enabling said applicator to follow contoured surfaces; a very thin protective tube member disposed around said layer of fibrous web material to prevent coating material from penetrating said fibrous web material, said tube member being of an impervious material; and a very thin layer of woven fabric material disposed over said protective tube member, said layer of woven fabric material absorbing a coating for application by said applicator.
8. An apparatus as recited in claim 7 in which said means for continuously bringing the panels into contact with said applicator comprise a moving conveyor belt.
9. An apparatus as recited in claim 7 in which the layer of fibrous material of said applicator is made from a synthetic material.
10. An apparatus as recited in claim 7 in which the layer of fibrous material of said applicator is made from a natural fiber.
11. An apparatus as recited in claim 7 in which the tube member of said applicator is made from polyethylene.
12. An apparatus as recited in claim 7 in which the layer of woven material of said applicator is made from a woven sock material.
13. An apparatus for continuous direct roll coating of textured panels or sheet-like members comprising in combination: a reservoir for containing the coating material; a first roller partially immersed in said reservoir; a second roller immediately adjacent said first roller and engaged therewith; a roll applicator immediately adjacent said second roller and engaged therewith, said applicator including a central core member, a relatively thick layer of soft, fibrous, compressible and pliable material having a web construction held together by a binding adhesive, said fibrous layer being disposed over said core member enabling said applicator to follow contoured surfaces; a very thin protective polyethylene tube member disposed around said layer of fibrous web material to prevent coating material from penetrating said fibrous web material, and a very thin layer of woven fabric material disposed over said protective tube member, said layer of woven fabric material absorbing a coating for application by said applicator; means for rotating said first and second rollers and said applicator such that said first roller and said applicator rotate in the same direction, and said second roller rotates in the opposite direction to that of said first roller and said applicator; and movable conveyor means disposed adjacent said applicator for continuously bringing the panels into contact with said applicator.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US90081978A | 1978-04-27 | 1978-04-27 | |
| US900,819 | 1978-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1116397A true CA1116397A (en) | 1982-01-19 |
Family
ID=25413127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000320934A Expired CA1116397A (en) | 1978-04-27 | 1979-02-06 | Applicator for direct roll coating |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1116397A (en) |
-
1979
- 1979-02-06 CA CA000320934A patent/CA1116397A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |