DE202013012005U1 - Masking tape and spool with masking tape - Google Patents

Abstract

Masking tape (2), in particular for plastering and / or painting work, with longitudinal and transverse dimensions and with a visible surface and at least one adhesive surface, characterized in that the masking tape (2) has at least two layers and a first layer (20, 26) and a second layer Layer (22, 27), whereby adjacent layers (20, 21, 22, 26, 27) adhere releasably to one another and wherein the transverse extent (b1, b2, b3, b4, b5) of the layers (20, 21, 22, 26, 27) is dimensioned differently, one layer (20, 26) having the largest transverse extent (b1, b4) and at least one layer (22, 27) the smallest.

Description

The invention relates to a masking tape, in particular for plaster and / or paintwork, with longitudinal extension and transverse extent and with a visible surface and at least one adhesive surface, a coil wound thereon Abklebeband.

Masking tapes are offered in a wide variety of designs on the market. They serve, in particular in painting and plastering surfaces that are not to be processed at least during a single operation, to protect against paint or order of plaster, etc. Various types of masking tapes are known in the art for different substrates. These are selected according to their purpose. For example, there are tapes made of paper, fabric or foil as a carrier material, on the one or both sides, an adhesive is applied. On the substrate is usually on the visible surface a release coating to prevent accidental solid adhesion of an upper layer on an underneath wound on a coil layer of the tape provided and on the side to be provided with the adhesive, a bonding agent to better adhere the adhesive to the substrate. In the case of a double-sided adhesive masking tape, a two-sided coating of the carrier material is usually provided first with an adhesion promoter, then with adhesive, and this covering with, for example, a silicone paper. Not only as a carrier material but also as an adhesive, various materials are used, such as natural rubbers, acrylates and hot melt pressure sensitive adhesives or synthetic rubbers. Depending on the application, adhesives with a low, medium or high bond strength are used. As a low bond strength, for example, an adhesive force of less than 1.5 N per 10 mm can be understood as an average bond strength of 1.5 N per 10 mm to 3.0 N per 10 mm and a high bond strength of more than 3.0 N per 10 mm. Since the Abklebebänder be used to protect a variety of surfaces or substrates and to limit of processing surfaces in the indoor and outdoor areas, in particular the adhesive is selected depending on the substrate and of course the way of processing to a good removal of the after processing To allow Abklebebandes of the substrate without damaging this or applied coatings with paint, paints, etc. It is also known to provide a double bond with a more adhesive masking tape applied to a weaker adhesive masking tape to avoid damage to the substrate.

Furthermore, it is known to apply a non-UV-resistant adhesive tape to a UV-resistant adhesive tape. Such a double bond with various masking tapes is used, for example, when the work envisaged requires that an adhesive tape which is unsuitable for the substrate to be protected is used, for example, in plaster work on adjacent sensitive component surfaces or substrates. Furthermore, such a double bond can be advantageously used if mechanical stresses are to be expected during processing. In each case, there is a double effort for masking the surfaces to be protected adjacent to the or surfaces to be processed. It is also known to provide a temporally successive Abklebung of surfaces to be protected, each offset from each other, for example, first provide a masking for a reinforcement, in a second step, a masking for a final plaster and in a third step, a masking for a applied paint. Each time, first of all, the applied masking tape has to be removed, and a new masking tape has to be applied to protect it from the surfaces to be protected at its original application position. This is not only associated with a considerable time, but in connection with this course with a considerable cost.

The present invention is therefore an object of the invention to provide a masking tape, a coil wound thereon Abklebeband in which or such costs for multiple masking to be protected surface sections can be saved and a compact unit can be provided, which is a simple Masking allowed.

The object is achieved for a masking tape according to the preamble of claim 1, characterized in that the masking tape is at least two layers and has a first layer and a second layer, wherein adjacent layers adherently releasably hold together and wherein the transverse extent of the layers is dimensioned differently, wherein a Location has the largest transverse extent and at least one location the least. The object is further achieved for a spool having such a masking tape wound thereon. Further developments of the invention are defined in the dependent claims.

As a result, a masking tape is created, which is designed precisely because of its multi-layer, that not several times in succession individual masking tapes on the surfaces to be protected or the edge region of the surfaces to be protected or surface sections to need to be glued on surfaces, but the one-time sticking of the multi-layer adhesive tape is sufficient. For masking at least one surface section to be protected, such as a window, a wall opening, a wall section, a bottom section, using the masking tape, the masking tape is adhesively bonded to the surface section to be protected at the edge on a first surface section to be machined such that the lowermost layer of the masking tape at the edge rests against a surface section to be machined last and the uppermost layer of the masking tape abuts the edge of the first surface section to be machined. After processing the first surface to be machined or the first surface section to be machined, the uppermost layer of the masking tape can be removed from below. Subsequently, the underlying layer protects the surface portion which is to be protected during the second machining operation and makes only the second surface to be machined accessible. After processing the or the further layer (s) arranged under the top layer to be processed further surface section / surface sections, the respective layer is separated from the surface section to be protected. If, for example, a three-ply masking tape is provided, the second ply of the multi-ply masking tape can be removed after the second machining step so that the third ply of the masking tape protects the surface to be protected in the third machining step at least in the boundary region to the surface to be machined. Instead of three layers or only two layers of Abklebebandes more can be provided, the number of layers can be made dependent on the individual processing steps and, accordingly, the different surfaces to be taped and protected accordingly. Under the longitudinal extent of the masking tape whose extension in the axial or longitudinal direction is understood, under its transverse extent the extent in the width direction, that is approximately at right angles to the longitudinal extent.

The uppermost layer of the masking tape is advantageously the one with the largest transverse extent, the lowest with the lowest, in order to have the opportunity to first cover a large area during the first processing step and subsequently reduce the covered area can, so that the bottom layer for Covering serves in the last processing step. By releasably adhering the individual layers of Abklebebandes it is possible to separate the individual layers as needed from each other. It proves to be particularly advantageous if the adhesive used is selected so that there is no danger of damaging the surface of the substrate on which the masking tape is placed. The staggering of the dimensioning of the width or transverse extent of the respective layers of the masking tape can be selected application-specific. When prefabricating the masking tape, different gradations of the individual layers can be offered.

Advantageously, each of the layers of the masking tape has an upper side and an underside provided with adhesive. The upper side, in particular the uppermost layer, may be provided with a release coating on the upper side of a carrier material. The adhesive may be applied to the opposite surface of the carrier material, in particular with the interposition of an adhesion promoter. The provided with the release coating top of the top layer serves to allow a release of the multilayer tape when unwinding from a coil, which is advantageously wound up for storage.

The individual layers of the multi-layer masking tape should adhere to one another until the desired deliberate separation is achieved, in order to provide good protection for the surface sections to be protected.

The adhesive used to form the individual layers of the masking tape can have the same adhesive force in all layers. However, it is also possible to provide the adhesive used for joining the individual layers of the masking tape with a higher adhesive force than the adhesive used on the underside of the bottom layer. By the latter embodiment, it is possible to remove the masking tape advantageously residue-free after editing the overhead surface portions of the surface to be protected. Since the lowermost, in particular narrowest, layer usually remains the longest on the substrate to be protected, the layers above it are removed earlier, depending on the processing progress, an adhesive with low adhesion or adhesion is advantageously used for the lower layer, so that it is possible is to loosen even the lowest layer without residue again from the surface to be protected and deducted. Alternatively, however, the same adhesive for all layers of the masking tape can be used or adhesive with the same adhesive or adhesive force, which is so low that a damage-free and residue-free release of the lowermost layer of the multi-part masking tape from the surface to be protected is possible.

It proves to be further advantageous if the adhesive, which is or is arranged on the at least one side of the individual layers, is chemically resistant to plasters, lacquers, paints, Solvents and other substances used in cleaning, painting and construction works. Depending on the progress of the work, the individual adhesives of the individual layers of the masking tape can also be designed differently, in particular as regards their chemical resistance, in order to suit the respective purpose and, accordingly, the respective substances with which the adhesive after covering surface sections during the machining of the remaining surface sections possibly come into contact. The individual layers of the masking tape can be joined to one another such that a one-sided lateral grading of the joined layers results. Alternatively, it is also possible to add the individual layers of Abklebebandes each other so that there is a two-sided grading of the joined layers. When providing a one-sided grading of the joined layers, the masking tape can be arranged, for example, around a window. When providing a two-sided grading and different gradations can be provided on both sides to account for different applications, or it can simultaneously be masked two opposing surface sections in a single gluing. Further, it is possible to provide a separation point in the longitudinal direction of the masking tape, so that two opposite counterparts machined surface sections can be glued in parallel with the then resulting two halves of the masking tape.

In particular, when providing a two-sided grading of the joined layers of the masking tape to provide an outside protection of the respective layers that protrude furthest after winding the masking tape on a coil, protective caps can be applied there front. When providing only one-sided gradation of the layers, the provision of such a cover element for protecting the topmost layer of the masking tape is also possible there.

After processing of the first surface section to be processed, the uppermost layer of the masking tape is separated from the underlying arranged and after editing of or arranged under the top layer further layers covered area or area sections also separated these second and respective further layer of Abklebebandes, in particular deducted from the surface portion to be protected or from a subsequently machined surface portion and a remaining further layer of Abklebebandes.

The carrier material of the individual layers of the masking tape may consist of paper and / or fabric and / or film, such as a plastic film, in particular a film of polyvinyl chloride (PVC) or polyethylene (PE). Suitable adhesives are a wide variety of materials which may have low, medium and high bond strength. For example, natural rubbers, acrylates and synthetic rubbers or hotmelt PSAs can be used. The dimensions of the transverse extent of the individual layers of the masking tape can be selected differently depending on the application, depending on the respective area section widths to be covered and protected.

For further explanation of the invention embodiments of this will be described in more detail below with reference to the drawings. These show in:

1 3 is a side sectional view through a coil according to the invention with a three-layer masking tape according to the invention,

2 a plan view of the invention adhered to a substrate masking tape according to 1 .

3 a perspective view of a coil according to the invention with partially unwound Dreilagigen Abklebeband,

4 a side sectional view of a second embodiment of a coil according to the invention with inventive two-ply masking tape, and

5 a plan view of the masking tape according to 4 ,

1 shows a side sectional view of a coil 1 with three-layer masking tape wound on top 2 , The masking tape 2 includes a top or first layer 20 , a middle or second position 21 and a lowest or third position 22 , How better 3 can be taken, assigns each of the three layers 20 . 21 . 22 a carrier material 23 . 24 . 25 which is equipped on its respective top so that a release of the three layers 20 . 21 . 22 the masking tape 2 from each other fundamentally damage-free for each underlying layer or adjacent location is possible. On the bottoms 223 . 224 . 225 of the respective carrier material 23 . 24 . 25 is this with an adhesive 226 . 227 . 228 Mistake. The adhesive 226 . 227 . 228 can on the respective bottom 223 to 225 the carrier materials 23 to 25 each be applied directly or with the interposition of a primer. The adhesives 226 . 227 . 228 can each be identical. However, it is also possible to use different adhesives or adhesives with different adhesive or adhesive force to a different degrees of adhesion of the individual layers 20 . 21 . 22 on a particular surface and together to enable. For different substrates to which the masking tape 2 applied or glued, this can prove to be very beneficial.

The top 123 of the carrier material 23 the top or first location 20 the masking tape 2 can as well as the tops 124 and 125 the respective support materials 24 . 25 the middle and lower position 21 . 22 be formed so that the respective adhesive layer of the layer arranged above can be easily separated from this, as soon as it is wanted, for the lower layer 22 when unrolling the masking tape 2 from the coil 1 for releasing the topmost layer 20 , In particular, it is possible the top 123 of the carrier material 23 the topmost location 20 the masking tape 2 to provide for example with a release varnish to the masking tape 2 especially easy and good of the coil 1 unroll and relocate. An illustration in the laid state of the masking tape 2 is in 2 shown.

Here it is clear that the three layers 20 . 21 . 22 the masking tape 2 each have a different transverse extent or width. The location 20 has a width b ₁ , the location 21 a width b ₂ and the location 22 a width b ₃ , where b _{1 is} greater b _{2 is} greater b ₃ . Accordingly, the first layer covers 20 a larger area than the second layer 21 and also as the third situation 22 , The masking tape 2 is accordingly arranged in the edge region of surface areas to be protected so that a lateral edge 126 the topmost location 20 get to the edge 30 a first surface section to be machined 31 a subsoil 3 extends. The middle position 21 extends with its lateral edge 127 to an edge 32 a second surface section to be machined 33 and the side edge 128 the third location 22 the masking tape 2 to an edge 34 a third surface section to be machined 35 , This is also in 2 indicated.

During processing of the first surface section to be machined 31 be from the top or first location 20 the masking tape 2 all other surface sections to be protected over the entire width b _{1 of} the first layer 20 the masking tape 2 away, so the entire area covered by the first location 20 with the arranged below stepped narrower position 21 and 22 is covered. After the first surface section to be machined 31 has been edited, for example, here a reinforcement has been provided, is the topmost layer 20 the masking tape 2 away, both from the top 124 the middle position 21 as well as from the additional surface strip 36 deducted. The first surface section to be machined 31 differs here in the in 2 shown embodiment of the second surface section to be machined 33 through the surface strip 36 , so that the second surface section to be machined 33 around the surface strip 36 larger than the first surface section to be machined 31 is. The second surface section to be machined 33 For example, can be provided with a finishing plaster, which subsequently by the provision of the second layer 21 the masking tape 2 just to the edge 32 enough. The third surface section to be machined 34 differs from the second surface section to be machined 33 through a surface strip 37 that during the second processing step of the second layer 21 the masking tape 2 is covered. This is in 2 also indicated.

After completion of the second processing step, this second layer 21 from the top 125 the lowest third location 22 of the masking tape to be deducted and also from the surface strip 37 , so that for finishing the third surface section to be machined 35 is completely available and from the third location 22 the masking tape 2 only one more area to protect 38 is covered. The third processing step may be, for example, a paint and the area to be protected 38 the glass of a window pane or any other surface section that is not to be provided with plaster and / or paint. After completion of the substrate 3 can also be the last location 22 from this and the area to be protected 38 be subtracted, with the well-defined edge 34 the machined surface portions of the unprocessed and the masking tape 2 protected area section 38 clearly demarcated. The underground 3 and accordingly the surface sections 31 . 33 and 35 are each only partially shown, thus may extend beyond the right drawing edge.

3 Although shows the individual layers 20 . 21 . 22 Abklebebandes 2 that on the spool 1 wound up and partially unwound from this, with distance from each other to better show their structure, but the individual layers adhere 20 . 21 . 22 usually so close to each other that an unwanted loosening does not occur. Responsible for this are the already mentioned adhesives 226 and 227 that the individual layers 20 to 22 the masking tape 2 hold together as long as you wish. To accidentally detach from the ground 3 and / or to avoid as possible of the other layers are adhesives 226 . 227 . 228 chosen, which have a sufficient bond strength and which are chemically resistant to the substances occurring during use, in particular plasters, paints, paints, solvents and other used in plastering, painting and other construction Substances. For example, depending on the application, different adhesives may be used here, in particular adhesives having different adhesives, for example, adhesives having an adhesive force of less than 1.5 N per 10 mm, adhesives having a high adhesive strength of more than 3.0 N per 10 mm, and adhesives with an average bond strength in the intermediate range of 1.5 N per 10 mm to 3.0 N per 10 mm. For example, a low bond strength can be used for masking on sensitive substrates, such as on wallpaper or coated surfaces, an adhesive with a low to medium adhesive force or adhesion for a longer-term retention of the masking tape on the substrate, a medium to high adhesion or bond strength for masking substrates for plaster work and / or for masking of textured or even smooth surfaces and in coating and painting, and adhesives with a high bond strength or adhesive force for masking of concrete, clinker or other substrates with a rough surface , For example, for the adhesive 228 that on the bottom 225 of the carrier material 25 the lowest location 22 is arranged, one from the underground 3 or surface section to be protected 38 Easier releasable adhesives are used than for the other layers 20 . 21 , thus, for example, the adhesive 228 compared to the adhesives 226 and 227 have the lowest adhesive or adhesive force.

In the 1 to 3 are the three layers 20 . 21 . 22 merely unilaterally joined together. As in particular from the 1 and 3 shows, the outer edges are aligned 129 . 130 . 131 the three layers 20 . 21 . 22 with each other and with the accordingly arranged there end face 10 the coil 1 , Instead of a one-sided alignment and one-sided stepped arrangement of the respective layers 20 to 22 the masking tape 2 These can also be provided on two sides stepped, as exemplified by a two-ply tape 2 in the 4 and 5 shown. The upper or first layer 26 is provided with a larger width b ₄ than the lower or second layer 27 having a width b ₅ . Such an embodiment is suitable for. B. if only a narrow strip is to be taped on both sides, as is made 5 which is a top view of the masking tape 2 shows results. Furthermore, it is possible to have a perforation or other separating device along the masking tape 2 to provide, as indicated by the dashed line 28 in 4 indicated to stick after separation, the two then mirror image mutually trained Abklebebandhälften at opposite locations on a substrate, such as on two opposite sides of a window. Even with a two-ply training of masking tape 2 unlike in the 4 and 5 shown embodiment a one-sided aligned, similar to that in the 1 and 3 shown, are used. Furthermore, it is also possible to provide more than three layers for the masking tape, z. B. if more than three processing steps are provided which require masking different surface sections.

The multi-layer forming of the masking tape is not only suitable for wide tapes, but also for Abklebebänder in the millimeter range or so-called millimeter tape. By providing the multi-layeredness and the resulting possibility of once masking all areas that must be taped in the individual processing steps, once and then after each processing step to have the ability to separate one of the layers of masking tape, which is very much faster than the masking of surface areas to be protected, considerable costs can be saved, which otherwise would have to be expended for the multiple masking. For example, the cost savings for a window can be EUR 120.00 per window.

The for the respective carrier material of the individual layers of the masking tape 2 used materials can be different, even for each layer. For example, the carrier material may consist of paper, tissue, films, in particular PVC films or PE films. The use of other materials is possible here. If provided, on at least one top 123 to 125 the carrier materials 23 to 25 the layers 20 to 22 or at least one surface 326 . 327 the layers 26 and 27 (with a two-ply masking tape 2 ) a release coating or other coating may be provided which allows easy release during unwinding and later separating the individual layers from each other. Optionally, only subregions of the surfaces of the individual layers or of at least one layer can be provided with a corresponding release coating or an otherwise separation-assisting device.

In addition to the embodiments of masking tapes described above and shown in the figures, numerous other combinations may be provided, including combinations of said embodiments, wherein the masking tape is at least two layers and the individual layers are sized differently, wherein one of the layers has the largest transverse extent and the at least one further has a smaller, in particular the uppermost layer has the greatest transverse extent and the lowest layer has the lowest.

LIST OF REFERENCE NUMBERS

1

Kitchen sink

2

masking tape

3

underground

10

front

20

top / first location

21

middle / second position

22

lowest / third location

23

Carrier material of 20

24

Carrier material of 21

25

Carrier material of 22

26

upper / first position

27

lower / second layer

28

dashed line

30

edge

31

first surface section to be machined

32

edge

33

second surface section to be machined

34

edge

35

third surface section to be machined

36

surface strips

37

surface strips

38

to be protected surface section

123

Top of 23

124

Top of 24

125

Top of 25

126

lateral edge of 20

127

lateral edge of 21

128

lateral edge of 22

129

outer edge of 20

130

outer edge of 21

131

outer edge of 22

223

Bottom of 23

224

Bottom of 24

225

Bottom of 25

226

adhesive

227

adhesive

228

adhesive

326

Top of 26

327

Top of 27

b ₁

Width of 20

b ₂

Width of 21

b ₃

Width of 22

b ₄

Width of 26

b ₅

Width of 27

A

Rotation axis of 1

Claims (8)

Masking tape ( 2 ) in particular for cleaning and / or painting work, with longitudinal extension and transverse extension and with a visible surface and at least one adhesive surface, characterized in that the masking tape ( 2 ) is at least two layers and a first layer ( 20 . 26 ) and a second layer ( 22 . 27 ), wherein adjacent layers ( 20 . 21 . 22 . 26 . 27 ) adherently releasably hold together and wherein the transverse extent (b ₁ , b ₂ , b ₃ , b ₄ , b ₅ ) of the layers ( 20 . 21 . 22 . 26 . 27 ) is dimensioned differently, whereby a position ( 20 . 26 ) has the greatest transverse extent (b ₁ , b ₄ ) and at least one layer ( 22 . 27 ) the least. Masking tape ( 2 ) according to claim 1, characterized in that each of the layers ( 20 . 21 . 22 . 26 . 27 ) an upper side ( 123 . 124 . 125 . 326 . 327 ) and one with adhesive ( 226 . 227 . 228 ) provided underside ( 223 . 224 . 225 ) having. Masking tape ( 2 ) according to claim 2, characterized in that the adhesives ( 226 . 227 . 228 ) of all layers ( 20 . 21 . 22 . 26 . 27 ) of the masking tape ( 2 ) have the same adhesive force. Masking tape ( 2 ) according to claim 2, characterized in that on the underside ( 225 ) of the lowest layer ( 22 . 27 ) used adhesives ( 228 ) has a higher adhesive force than the adhesive (s) ( 226 . 227 ) the at least one further layer ( 20 . 21 . 26 ). Masking tape ( 2 ) according to one of the preceding claims, characterized in that the adhesive ( 226 . 227 . 228 ) of the individual layers ( 20 . 21 . 22 . 26 . 27 ) is chemically resistant to plasters, paints, paints, solvents and other substances used in cleaning, painting and construction work. Masking tape ( 2 ) according to one of the preceding claims, characterized in that the individual layers ( 20 . 21 . 22 ) are joined together so that a one-sided lateral grading of the joined layers ( 20 . 21 . 22 ). Masking tape ( 2 ) according to one of claims 1 to 5, characterized in that the individual layers ( 26 . 27 ) are joined to one another in such a way that a two-sided grading of the joined layers ( 26 . 27 ). Kitchen sink ( 1 ) with a masking tape wound thereon ( 2 ) according to any one of the preceding claims.

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