NO180674B - Embossed and / or printed edge strips of plastic, as well as a method for making them - Google Patents

Abstract

The present invention relates to an edge band which has a material thickness of 400 mu m to 4000 mu m and is cut into strips of 12 mm to 200 mm. The edge band contains at least two layers of which at least one is a polyolefin layer or polyolefin film or polyolefin-containing layer or film (12) and contains or consists of a propylene homopolymer and/or copolymer and/or a high density ethylene (HDPE) and possesses at least one non-self-adhesive, solvent-free adhesive film or adhesion promoter layer (11) which is arranged immediately therebelow or via one or more intermediate layers and contains a polymer containing acid groups and/or ester groups and/or a polymer containing other polar groups. The invention further relates to a process for producing the edge band and the use thereof. <IMAGE>

Description

The present invention relates to an edging made of plastic and which optionally contains filler and/or pigments, and which is optionally printed or embossed.

The invention further relates to a method for producing such plastic edging bands.

According to this, the invention relates to an embossed and/or printed edge tape (wrapper) made of plastic, consisting of at least two layers and containing pigments and/or fillers, and is a polyolefin layer or a polyolefin foil or polyolefin-containing layer or foil, and contains a propylene homo- and/or -copolymer and/or a high-density ethylene, HDPE, or consists of it, and has at least one immediately below it or above it via one or more intermediate layers arranged adhesion foil containing a plastic with polar groups, and/or an adhesion-mediating layer.

Roll-up edge tapes made of paper and plastic for the surface treatment of furniture edges and panels of any type are already known from DE-GM 75 26 366. These edge gluing tapes are produced in the form of approx. 1 to 3 mm wide strips with a thickness of 0.2 to 1 mm of paper impregnated with an artificial resin (melamine resin, alkyd resin, polyurethane-urea-formaldehyde resin or crosslinkable acrylate resin). These synthetic resin-impregnated paper-based edgebanding tapes have the disadvantage that they are not very mechanically stable and that they can be easily damaged. Furthermore, the adhesion end of these roll-up edge wrapping tapes to wood and wood materials can be improved and it is, for example, not very durable in the case of moisture.

The aim and task of the present invention is to avoid these defects and to provide an improved edge band. The edge band must in particular have an improved mechanical stability and, when using adhesive, also show an improved adhesion end when exposed to moisture later. If desired, the edgeband should also be able to be printed or embossed.

According to the invention, these goals are achieved by an edge band of the type mentioned at the outset, which is characterized by at least one polyolefin layer or a polyethylene foil as middle layer or upper layer (12, 12') containing a mixture or alloy of a propylene homo- or copolymer and an EDPE and/or LLDPE with a weight ratio between the propylene homo- or copolymer (with a comonomer proportion of less than 50 wt-£) and HDPE and/or LLDPE of

40:60 to 60:40,

or consists of it, and that the adhesive film is a co-extruded adhesive film.

In a preferred embodiment, the invention relates to an edge tape which is characterized by the fact that a filler material-containing polyolefin layer or foil (13) is arranged over the intermediate layer or intermediate foil (12') which contains or where the plastic binder consists of a mixture or alloy of 30 to 70 wt. # and preferably 40 to 60 wt-# of ethylene homo- and/or copolymer (with a comonomer proportion below 15 wt-# calculated on 100 wt-parts of ethylene copolymer) and 70 to 30 wt-#, preferably 60 to 40 wt-# of propylene homo- and/or copolymer (with a comonomer proportion).

In a further preferred embodiment, the invention relates to an edge band which is characterized in that the co-extruded adhesive layer as polar group-containing plastic contains or consists of at least one ethylene vinyl acetate copolymer and/or terpolymer, an ethylene acrylic acid or ethylene acrylic acid copolymer or terpolymer, an ethylene methacrylic acid ester or ethylene methacrylic acid copolymer or -terpolymer, a polymerizate containing maleic acid or maleic anhydride, -co- or -terpolymerizate and/or a polymerizate, co- or terpolymerizate containing paratoluenesulfonic acid or sulfonic acid groups.

The edge tape preferably has a material thickness of 400 to 4000 jjm and is cut into strips of 12 to 200 mm.

According to a preferred embodiment, the polyolefin layer or the polyolefin-containing foil (12) contains HDPE as plastic and at least one additive or processing aid, preferably at least one stabilizer and/or a lubricant, and/or at least one pigment, dye and/or filler, or consists (calculated on the plastic portion) thereof.

According to a further preferred embodiment of the invention, the polyolefin layer or the polyolefin-containing foil (12) contains a propylene homo- and/or copolymer or a mixture of a propylene homo- and/or

- copolymer with HDPE and/or LLDPE, or the plastic binder in the layer or foil (12) consists of it. The edge band of the invention which has at least the layers or foils (11) and (12) is applied to the wood or wood material edges to be coated for the production of furniture or furniture parts using a hot melt adhesive. The hot melt adhesive is applied to the wood or material edges, preferably at temperatures of 120 to 245°C, and preferably 140 to 220°C. The strip-cut, milled, sawn or otherwise cut to a strip width of 12 to 200 mm, and preferably 15 to 100 mm cut or split edge tape is pressed under pressure, preferably under roller or roller pressure, onto the hot melt adhesive layer. Those along edges, corners and similar overhanging edges are removed by cutting, milling, sawing or in some other way. The tape, which is at normal temperature, is preferably pressed onto the still hot hot melt adhesive which is on the wooden material or triangles, or applied to these with the heated hot melt adhesive layer. They thus, using the edge band of the invention, produced furniture edges or

furniture part edges are not sensitive to water vapor and do not exhibit any detachment phenomena when stored in a damp state. When using the edging tape of the invention, it is also not necessary to use duroplastic adhesives.

The plastic edging band according to the invention is applied in an unstretched state so that no further stretching or pre-tensioning precautions have to be carried out, which are also not desirable according to the invention.

The edge band of the invention is largely resistant to moisture and even to water vapour. In addition to this, it is mechanically very stable and relatively resistant to loads or mechanical impacts. The edge tape that is not stretched can easily be printed and/or embossed, additional special adhesion agents are not necessary during application.

According to a further preferred embodiment of the edge band of the invention, the band is characterized by the fact that a further polyolefin layer (13) is arranged above the middle layer, which consists of a mixture of

70 to 97.5 parts by weight and preferably

75 to 85 parts by weight

of a propylene homo- or copolymer,

5 to 30 parts by weight and preferably

15 to 25 parts by weight

HDPE, which is calculated for 100 parts by weight of HDPE, has been replaced with

0 to 35 weight # and preferably 0 to 10 weight #,

calculated on 100 parts by weight used HDPE, with polyvinyl alcohol, ethylene vinyl alcohol mixture polymer, ethylene acrylic acid mixture polymer, acrylic acid ester, acrylic acid terpolymer and/or polycaprolactone and

50 to 150 weight # and preferably

70 to 120 weight-5é,

calculated on 100 parts by weight of plastic binder, of a finely divided filler, as well as possibly processing agents, color pigments and/or modifiers.

In addition to the advantages mentioned above, this embodiment also has the further advantage that the edging tape has even better processing properties and is adhesion-resistant, good for printing and/or embossing.

In yet another preferred embodiment, the invention relates to an edge tape as described above and which is characterized in that more than 60% by weight, and preferably more than 75% by weight, of that in the polyolefin layer (13) and/or the intermediate layer (12') or the upper layer (12) used filler is treated and/or coated with a surface treatment agent and/or a reactive substance in an amount by weight of from 0.05 to 10 weight-#, calculated on 100 weight-parts of filler, preferably 0.5 to 6 weight- #, calculated on 100 parts by weight of filler, and that the average grain diameter of the filler or filler mixture apart from cellulose is 0.01 to 30 µm and preferably 0.1 to 10 µm.

By using these embodiments, it is possible to obtain edgebands with a high surface tension and a good impressionability as well as an excellent storage time, within which the surface tension does not or only significantly decreases. Within the scope of the invention, one can also, if desired, equip the edge band with the same printing or the same surface decoration and/or the same texture as is found on the plastic film or plastic film web used for the surface coating, which preferably consists of polyolefin or contains polyolefin.

The edge band according to the invention exhibits on its surface a surface tension of more than 68 mN/m (milliNewton/meter or dyne/cm), preferably more than 71 mN/m, and/or is corona-treated or pre-treated with a plasma method, whereby the above-mentioned values for the surface tension is set.

It is possible that 0.1-20 parts by weight, preferably 1-10 parts by weight, of the filler or filler mixture equipped with a polar substance is replaced with the same amount by weight of a polar filler or a polar filler mixture, preferably uncoated kaolin and/or silica gel . In this way, depending on the polar filler used, higher surface tensions can be achieved.

As polar substance or substances, there is at least one organic-chemical compound with at least one OH group and/or COOE group and/or SiO or SiOR group or similar polysiloxane groups and at least one or more non-polar groups on the surface of the mineral filler , and/or this is completely or partially covered thereby in the form of a thin layer, whereby preferably the polar groups are oriented towards the filler or have fully or partially entered into a reaction with it.

Preferably, as compounds exhibiting polar and non-polar groups, saturated and unsaturated carboxylic acids with a C number above 3 and preferably above 10, hydroxycarboxylic acids, polyoxycarboxylic acids with a C number above 6 and preferably above 10 are used, and/or fatty acids, in particular stearic acid, hydroxystearic acid and polysiloxanes (for example polydimethylsiloxane) or polysiloxanes with hydroxy or amine groups or polysiloxanes containing one or more hydroxy groups.

It is important that the compounds with polar and non-polar groups are not added separately during the foil production, but are added together with the filler or with the filler mixture, whereby they should or must be arranged on the surface or part of the surface of the filler.

If the compounds exhibiting polar or non-polar groups are added separately during the foil production without being arranged on the surface of the filler, there is a danger that processing difficulties will occur or that foils of reduced quality can be produced.

According to a further embodiment, the edge tape can also contain one or more organic modifiers. These serve to regulate toughness, calenderability, extrudability and similar properties. A preferred group for this purpose are block polymers of styrene with butadiene or isobutylene or isoprene. Other suitable modifiers are polymers based on styrene-butadiene or methacrylate-butadiene-styrene. Polyolefins containing functional groups are particularly suitable for influencing the relationship between the physical properties and adhesiveness. Such modifying additives are suitably present in an amount of 0.5 to 20 parts by weight, preferably 2 to 10 parts by weight.

As already mentioned, the advantages of the invention foil or edge band are better utilized when they are subjected to a treatment that improves surface adhesion. Preferably, this surface treatment consists of an activation by irradiation. Among the irradiation methods, a corona treatment is in turn preferred. However, other irradiation methods can also be used.

Examples of other suitable irradiation methods are electron irradiation, UV irradiation and/or laser irradiation. Suitable devices are also known for these purposes.

According to yet another preferred embodiment of the edge band as described above, it is characterized by the fact that a further polyolefin layer (13) is arranged between the layers (12, 12') which contains or consists of polypropylene and/or polyethylene, preferably HDPE, as plastic , and also contains or consists of 0.5 to 55 wt-# and preferably 3 to 35 wt-# of an organic filler or a filler mixture, preferably cellulose with an average particle size of from 5 to 100 pm and preferably 7 to 50 pm, and a maximum average length of 250 pm and preferably 200 pm, and/or starch (calculated on the sum of polyolefin and organic filler) and possibly processing aids, color pigments, dyes and/or modifiers. This embodiment has the advantage of later easier or improved waste utilization or waste splitting, a permanent adhesion for varnishes, printing inks and the like and a good mechanical strength.

Within the scope of the invention (or the latter embodiment), finely divided cellulose is suitable, produced according to the preferred sulphite or sulphate method, as well as native or regenerated cellulose.

According to one embodiment, the amount of cellulose is between 3 and 50 by weight, calculated on the sum of polyolefin and cellulose. If a content of 50% is exceeded, the firmness properties are drastically reduced.

The degree of fineness of the cellulose in the edge band of the invention is suitably between 1 and 100 pm at a fiber thickness of 10 to 30 pm. A finer degree of distribution requires too much, with large particles problems arise when producing smooth, thin foils. In the case of native or regenerated cellulose for particles with a thickness of up to 100 pm, a maximum average length of 200 pm is used without fundamental difficulties arising in the film formation. As starch, the starch types known per se can be used and preferably potato starch and/or corn starch.

According to a second embodiment, the edging band may also contain mineral fillers. Such fillers are known for polymer foils. Particularly suitable and therefore preferred are mica, talc, silicates and silicic acids in their various forms. Examples of other usable mineral fillers are carbonates and especially calcium carbonates as well as limestone and chalk, further magnesium carbonates and the like.

By adding suitable mineral fillers, properties such as vicat point, shore hardness and tensile strength can be affected. If such mineral fillers are present, the film suitably contains 3 to 50 wt.# and preferably 3 to 30 wt.#, calculated on the sum of polyolefin and cellulose.

In addition, the edge band may contain one or more organic modifiers. These serve to regulate toughness, calenderability, extrudability and similar properties. A preferred group for this are block polymers of styrene with elastomers, for example with butadiene or isobutylene or isoprene. Other suitable modifiers are copolymers based on styrene-butadiene or methacrylate-butadiene-styrene. Polyolefins containing functional groups, for example copolymers, terpolymers or graft copolymers of ethylene and reactive monomers, are particularly suitable for influencing special physical properties and adhesiveness. Such modifying additives are suitably present in an amount of 0.5 to 20 wt-56, preferably 2 to 10 wt-#, always calculated on the sum of polyolefin and cellulose. In general, according to a preferred embodiment, the surface activation is carried out by irradiation or by treatment with flame or ozone. Particularly preferred is a corona treatment, other irradiation methods use electron beams, UV rays or laser beams.

With the help of the invention, as already mentioned, the surface adhesion of polyethylene-containing edge tapes is significantly increased, whereby the application possibilities for such foils for laminating, coating, painting and gluing, especially in modern plants that use short process times and the highest possible temperatures, are significantly improved or even for the first time made possible. When gluing the invention's foil or edging tape, there was no change in the adhesion even after months. The resistance of the surface activation to temperature influences is also significantly improved.

Printing inks, and especially those based on terpolymers of vinyl chloride-vinyl acetate-maleic acid of vinyl polymers containing OH groups, but also the usual PE printing inks, show poor adhesion as reaction varnishes, especially on the basis of polyurethane, melamine resins and also UV-curing polyester epoxy and polyurethane acrylates. Not even after 1,000 hours of xenotest exposure and in a drop test could one determine any change in the paint adhesion according to ASTM Norm D 2141-63T.

By adding mineral fillers and/or organic modifiers, the properties of the edging tape can be varied to a large extent without the advantageous adhesion properties being impaired. For example, the surface adhesion obtained by corona treatment of an edge band with a layer of 95 parts polyethylene and 5 parts cellulose is not affected by the addition of 20 or 30 parts talc.

The usual dyes and pigments do not have a negative effect either.

Preferably, it is immediately above the intermediate foil or intermediate layer (12 or 12') and/or the filler-containing polyolefin layer or foil (13) or above at least one adhesive layer or adhesive foil (14, 14') and/or at least one printing layer or color printing layer (15) arranged a varnish layer (16) or a protective layer or a protective foil (17).

According to a further preferred embodiment, the single- or multi-layer, preferably UV stabilizer- and/or UV-absorber-containing polymethyl methacrylate, polyamide and/or polyester-containing protective layer or protective foil (17) is a layer obtained by extrusion, co-extrusion or by coating application or foil and/or in addition it contains a fluoropolymer, an acrylate and/or polyacrylate and/or an organic chemical compound which makes the protective layer or protective foil flexible or contains a flexibilizing polymer.

It is particularly appropriate if the protective layer or protective foil is transparent or translucent. This embodiment is chosen above all when an underlying layer shows printing or color printing.

Preferably, the extruded, co-extruded or multilayer protective layer or protective foil (17) has a thickness of 20 to 350 pm, preferably 30 to 250 pm, and/or has a UV absorber content and/or UV stabilizer content of 0.02 to 15 wt. -#, preferably 0.2 to 5 wt-#

(calculated on 100 parts by weight of polymer in the protective layer), and/or it contains at least one flexibilizing acrylate or polyacrylate and/or polyvinylidene fluoride or consists of them, as a plastic binder.

According to a further embodiment, the single- or multi-layered, preferably UV stabilizer- and/or UV-absorber-containing polyacrylate, polymethyl methacrylate, polyamide and/or polyester-containing varnish layer (16) or the protective layer is a layer obtained by coating application or foil which is preferably applied with the co-use of at least one organic-chemical solvent in a layer thickness of 5 to 80 pm, and preferably 8 to 40 pm.

Preferably, it is a co-extruded layer or protective layer or multi-layer varnish layer, or protective foil of at least one lower polymethyl methacrylate-containing layer or foil which, according to one embodiment, preferably contains a flexibilizing acrylate or polyacrylate and exhibits at least one polyvinylidene fluoride-containing upper layer or an upper foil.

According to a further preferred embodiment, a transparent adhesive film or a transparent adhesive layer, which contains or consists of an alloy or a mixture and/or a co-, tert- or graft polymer of an olefin or polyolefin, preferably polyethylene and/or polypropylene with an acrylic ester, preferably methyl, ethyl, butyl acrylic ester, and/or maleic anhydride and/or with an acrylate homo-, -co- and/or -terpolymer and/ or methacrylate homo-, -co- and/or

— terpolymer.

According to another preferred embodiment, a transparent adhesive layer (14) is arranged underneath a lacquer layer (16), protective foil or protective layer (17) with a preferably smooth surface, which is preferably applied using at least one solvent or diluent on the underside of the top foil or top layer (under subsequent evaporation, evaporation or removal of the solvent or diluent or a significant proportion thereof), which contains or consists of a thermoplastic acrylate homo-, -co- and/or -terpolymer, preferably in combination with a polyisocyanate , and/or a crosslinkable OE group-containing acrylate, preferably in combination with a polyisocyanate, and/or a methacrylate homo-, —co— and/or terpolymer and/or a polyisocyanate, preferably hexamethylene diisocyanate, and/or an alloy or mixture of a or several of these connections between themselves.

As mentioned in the introduction, the invention also relates to a method for producing an edge band of the type described above, where the method is characterized by the use of at least one polyolefin layer as an intermediate layer or upper layer (12, 12') which contains or consists of a propylene homo- and/ or copolymer and an HDPE and/or LLDPE with a weight ratio between the propylene homo- or copolymer (with a comonomer proportion of less than 50 wt-#) and HDPE and/or LLDPE of

40:60 to 60:40,

and also contains at least one stabilizer and/or a lubricant and/or at least one pigment or dye, that the co-extruded or repeatedly extruded composite layer (11, 12) and possibly one or more further layers are passed through at least one first pair of rollers, preferably smoothing rollers , embossing rollers and/or smoothing and embossing rollers, whereby the pair of rollers exhibits a temperature of 10 to 50°C and preferably 15 to 35°C as the roller gap, the layer material and the thickness of the layer respectively the composite layer web are set so that a bead develops on it opposite the adhesion layer lying side and the layer immediately before the further cooling and after the cooling or after the further processing which takes place by extrusion, carding or lamination by at least one further

plastic layer, at a material thickness of 400 to 4000 pm, is cut, sawn or milled into strips with a width of 12 to 200 mm and preferably 15 to 100 mm.

According to a preferred embodiment of the method of the invention, the co-extruded or repeatedly extruded composite layer (11, 12) and possibly one or more further layers are passed through at least a first pair of rollers, preferably smoothing rollers, embossing rollers and/or smoothing and embossing rollers, whereby the pair of rollers exhibits a temperature of 10 to 50°C and preferably 15 to 35°C, and/or the roll gap, the foil material and the thickness of the foil, respectively the composite foil, are set so that only a bead is formed on the side that lies, why the adhesion layer or the foil and the foil immediately before the further cooling or after cooling or after further processing which takes place by extrusion, casing or lamination with at least one further plastic foil, cut, sawn or milled into strips with a width of 12 to 200 mm, and preferably 15 to 100 mm.

According to a second preferred embodiment, the co-extruded or repeatedly extruded composite layer (11, 12) as well as possibly one or more additional layers after a wide-slot extruder nozzle are led directly to a cooling roll or casting cooling roll and cooled and during the first third of the roll circumference, preferably within the first quarter of this (calculated from the point on the roll where the forging comes into contact) further processed, preferably by extrusion, casing or lamination with at least one further plastic foil or foil web, preferably at a temperature of 40 to 110°C , and after or without this further processing cut, sawn or milled into strips with a thickness of 12 to 200 mm and preferably 15 to 100 mm.

The edge band of the invention can be used in a method for coating wood or wood material edges. Therefore, for the production of furniture or furniture parts, a hot-melt adhesive is applied to the wood or wood material edges to be coated at a temperature of 120 to 245°C and preferably 140 to 220°C after which the edge strip, cut, milled or sawn or otherwise brought to a strip width of 12 to 200 mm and preferably 15 to 100 mm, and containing at least layers (11) and (12), applied to the wood or wood material edge under pressure, preferably roller pressure, at an edge strip temperature below 800 C and preferably below 35"C. The grooves projecting beyond the edge are cut, milled or sawn off or removed in some other way at edges, corners and similar termination areas.

Preferably, an edge band pre-coated with hot-melt adhesive is applied to the wood or wood material edge to be coated for the production of furniture or furniture parts, after which it is cut, milled, sawn or otherwise into strips to a strip width of 12 to 200 mm and preferably 15 to 100 mm, trimmed edge strips which at least contain the layers (11) and (12) and the hot-melt adhesive layer on the strip by heating brought to temperatures above 80°C and preferably 100 to 245°C, thereby heat-activated and then applied to the wood-very wood material edge with the hot-melt adhesive -look under pressure, preferably roller or roller pressure, after which the edge areas projecting beyond the edges are trimmed away as above.

The edging tape according to the invention finds particular use for coating wood or wood material edges for the production of furniture or furniture parts, with the combined use of a hot-melt adhesive, preferably an ethylene-vinyl acetate and/or ethylene-acrylic acid and/or ethylene-acrylic acid ester in the form of polymers, co- or terpolymers, graft or block polymers containing or containing hot-melt adhesives or a hot-melt adhesive based on polyamide or polyurethane. The invention shall be described in more detail with reference to the attached drawings.

In the attached drawings, figures 1 to 8, preferred embodiments of the invention are shown schematically. 1 figures 1 to 4 show cross-sections of edging strips according to the invention. In all embodiments according to Figures 1 to 4, a polyolefin layer or polyolefin-containing layer (12) is arranged above the adhesion layer or the adhesion foil (11) which is connected to a further propylene homo- or copolymer-containing intermediate layer or intermediate foil (12') and/or the filler-containing polyolefin layer or foil (13) . In the particularly preferred embodiment according to Figures 1 and 2, the filler-containing polyolefin layer or foil (13) is equipped with at least one printed layer or color printing layer (15), preferably several partially surface-applied color printing layers (15) which immediately or via an adhesion layer (14) is connected to the transparent varnish layer (16) or the transparent protective layer or protective foil (17).

In the embodiment according to Figure 2, between the filler-containing polyolefin layer or foil and the color printing layer (15) there is additionally arranged yet another adhesive layer or adhesive foil (14).

In Figure 3, the additional polyolefin layer (12') arranged above the layer (12') is a processing aid-containing propylene homopolymer layer or foil or a filler-containing polyolefin layer or foil (13) and is covered by a varnish layer (16), preferably acrylate or polyurethane varnish layer, or a protective foil (17). Figure 4 shows the structure of a simple edging band which is intended for not too demanding edging.

Figures 5 to 8 show schematic embodiments of the method of the invention using special devices.

In Figures 5 and 6, the extruder (1) is equipped respectively combined with co-extrusion devices (2) and (3), the so-called "Black-Box" (4) and the wide-slit die (5), while the multi-layer extrusion plant (1) and "Black -Box" is shown as a unit in figures 7 and 8 where the unit in turn is connected to the wide slot nozzle.

In the simple embodiment according to Figure 5, the multi-layer composite foil from which the edge band is produced comes to the smoothing rollers (6) and (7) (with or without embossing structure) and the further smoothing roller (7').

According to the particularly preferred embodiment in Figure 6, the filler-containing polyolefin film (13) is fed from the film unwinding roller (10), in that according to one embodiment, the film (13) is equipped with a color printing layer and/or a varnish layer , protective layer or a protective foil, and then through at least one pressure roller (7") united under roller pressure with the co-extruded or multi-layer extruded foil (11, 12) or (11, 12, 12').

According to Figures 7 and 8, the coextruded (at least containing the layers (11), (12)) or multi-layer extruded (containing at least the layers (11), (12), (12')) exiting the wide-slit extruder nozzle (5) comes from the foil melt path to the cooling or the pouring cooling roll (9) and is either coated using a further wide-slot extruder nozzle (10') or cooled in the vicinity of this using a cooling device (10') (for example air jet nozzles or other cooling devices (10')).

According to Figure 8, the foil web (for example (13) or the multi-layer web) taken from the foil unwinding device (10) is led towards the cooling roll or pouring cooling roll (9) and with the help of pressure rollers (7") joined with the foil web present on the cooling roll or pouring cooling roll (9) which for example contains layers (11) and (12) or (11), (12) and (12').

Examples of the foil or layer composition of the edging band.

1. Example

A varnished, printed, embossed polyolefin film with a top layer

(16), a two-component polyurethane varnish, an underlying pressure layer (15) and the foil layer (13), consisting of

100 parts by weight PP homopolymer (propylene homopolymer)

30 parts by weight calcium carbonate + pigment

+ processing aid

is cased onto the filler layer (12) which consists of a polyolefin mixture polypropylene copolymer + HDPE 80:20 and 50 parts calcium carbonate + pigment + finishing aid.

Arranged underneath is the intermediate layer (12), consisting of a polyolefin mixture polypropylene copolymer + HDPE 50:50, and the adhesion layer (11) for hot melt adhesives based on a polyethylene terpolymer, consisting of

30 wt-# methyl acrylate

2 wt # of maleic anhydride

68 wt-5é ethylene

2. Example

A transparent, exposed, overprinted, embossed polyolefin film (P0 film) with an overlay with a transparent PMMA layer (17) with an adhesion promoter layer based on acrylate + isocyanate (14), a printing layer (15), a HV layer based on acrylate + isocyanate (14) and the foil layer (13), consisting of HDPE + cellulose 80:20 + pigment + additives, are sealed onto the filler layer (12) of HDPE + calcium carbonate + pigment + additives.

The underlying adhesive layer (11) consists of an EVA copolymer with a vinyl acetate content of 20% by weight.

3. Example

A varnished, overprinted, embossed polyolefin film (PO film) with top layer (17), consisting of a two-component acrylic varnish, the pressure layer (15) and the PO layer (12), consisting of P0 blend PP-HDPE 80:20 + 80 parts calcium carbonate (per 100 parts polymer) + pigment + processing aid, cased on the filler layer (12), consisting of HDPE + PP 50:50 and the underlying adhesion layer (11), consisting of a PE copolymer with 29% by weight methyl acrylate.

4. Example

A lacquered, embossed Uni foil with top layer (17), consisting of a two-component polyurethane varnish and the polyolefin foil (13), consisting of HDPE + cellulose 80:20 + pigments + additives, is laminated onto a filler layer (12), consisting of 100 HDPE + 50 parts calcium carbonate + pigment + processing aid, and the adhesive layer, consisting of an EVA copolymer with a vinyl acetate content of 33 wt-#.

5. Example

An embossed Uni-edge foil, consisting of a cover/fill layer (12), consisting of a PO mixture, PP copolymer and HDPE 50:50 + pigment + processing aid and an adhesion layer of a PE terpolymer, consisting of

30 wt-56 methyl acrylate

2 wt # of maleic anhydride

60 wt-56 ethylene

6. Further examples of the polyolefin-containing layer or the polyolefin foil (12).

a) Propylene homopolymer 41 weight-* HDPE/LLDPE 49 weight-*

Processing aids and additives 2 weight-*

b) Polyethylene (HDPE) 88 wt-*

Calcium carbonate 9 wt-*

Pigments 2 weight-*

Additives or processing aids 2 weight-*

c) Polypropylene 48 wt-*

Polyethylene (HDPE or LLDPE) 48 weight-*

Pigments 3 weight-*

Processing aids or additives 1 weight-*. 7. Further examples of the polyolefin layer or foil (13)

Example a)

80 parts by weight of propylene homopolymer

15 parts by weight low-pressure polyethylene (HDPE)

5 parts by weight ethylene-vinyl alcohol copolymer (EVAL)

99.5 parts by weight calcium carbonate

0.5 parts by weight of hydroxystearic acid, which is placed on

the surface of calcium carbonate

0.5 parts by weight lubricant and stabilizers

Example b)

80 parts by weight of propylene homopolymer

15 parts by weight low-pressure polyethylene (HDPE)

5 parts by weight polyvinyl alcohol (PVAL)

99.5 parts by weight kaolin

0.5 parts by weight of polydimethylsiloxane, which is arranged on

the surface of the kaolin

0.5 parts by weight lubricant and stabilizers

Example c)

80 parts by weight of propylene homopolymer

15 parts by weight low-pressure polyethylene (HDPE)

5 parts by weight copolymer of ethylene and acrylic acid (EAA) 79.5 parts by weight calcium carbonate

15 parts by weight of talc

0.5 parts by weight of stearic acid, which is placed on the surface of the filler mixture of calcium carbonate and talc

5 parts by weight silica gel

0.5 parts by weight lubricant and stabilizers

Example d)

90 parts by weight of propylene homopolymer

5 parts by weight low-pressure polyethylene (HDPE)

5 parts by weight ethylene-vinyl alcohol copolymer (EVAL) 49.5 parts by weight calcium carbonate

45 parts by weight kaolin

0.25 parts by weight of stearic acid

0.25 parts by weight of polydimethylsiloxane, which is placed on

surface of the filler mixture of calcium carbonate and kaolin

5 parts by weight silica gel

0.5 parts by weight lubricant and stabilizers

The surface layer consisted of a polyurethane resin varnish with an average thickness of 10 µm.

Example e)

Example f)

Propylene 80 parts by weight Copolymer with a comonomer part

less than 8 parts by weight* and 20 parts by weight of cellulose with a fiber length of less than 50 pm and 2 parts by weight of processing or addition aid.

8. Further example of the transparent cover foil

90 parts by weight polymethyl methacrylate

2 parts by weight processing aid

Claims (16)

1. Embossed and/or printed plastic edging tape, consisting of at least two layers and containing pigments and/or fillers, and is a polyolefin layer or a polyolefin foil or polyolefin-containing layer or foil, and contains a propylene homo- and/or copolymer and/or a high-density ethylene, HDPE, or consists of it, and has at least one immediately below or above it via one or more intermediate layers arranged adhesive foil containing a plastic with polar groups, and/or an adhesion-mediating layer (11), characterized in that at least one polyolefin layer or a polyolefin foil as intermediate layer or upper layer (12, 12') contains a mixture or alloy of a propylene homo- or copolymer and an HDPE and/or LLDPE with a weight ratio of the propylene homo- or copolymer (with a comonomer proportion of less than 50 weight-*) and HDPE and/or LLDPE of 40:60 to 60:40, or consists of it, and that the adhesive film is a co-extruded adhesive film. 2. Edge band according to claim 1, characterized in that a filler material-containing polyolefin layer or foil (13) is arranged above the intermediate layer (12, 12') which contains or where the plastic binder consists of a mixture or alloy of 30 to 70 weight-* and preferably 40 to 60 weight-* ethylene homo- and/or copolymer (with a comonomer proportion below 15 weight-* calculated for 100 weight-parts ethylene copolymer) and 70 to 30 weight-*, preferably 60 to 40 weight-* propylene homo- and/or copolymer (with a comonomer proportion). 3. Edge band according to claims 1 and 2, characterized in that the co-extruded adhesive layer as polar group-containing plastic contains or consists of at least one ethylene vinyl acetate copolymer and/or terpolymer, an ethylene acrylic acid or ethylene acrylic acid copolymer or terpolymer, an ethylene methacrylic acid ester or ethylene methacrylic acid copolymer or terpolymer, a polymer, co- or terpolymer containing maleic acid or maleic anhydride and/or a polymer, co- or terpolymer containing a paratoluenesulfonic acid or sulfonic acid group. 4. Edge tape according to one or more of claims 1 and 3, characterized in that a further polyolefin layer (13) is arranged above the intermediate layer (12, 12') which consists of a mixture of 70 to 97.5 parts by weight and preferably 75 to 85 weight parts of a propylene homo- or copolymer, 5 to 30 parts by weight and preferably 15 to 25 parts by weight HDPE as calculated for 100 parts by weight HDPE is replaced by 0 to 35 parts by weight and preferably 0 to 10 parts by weight, calculated on 100 parts by weight of used HDPE, with polyvinyl alcohol, ethylene vinyl alcohol mixture polymer, ethylene acrylic acid mixture polymer, acrylic acid ester, acrylic acid terpolymer and/or polycaprolactone and 50 to 150 weight-* and preferably 70 to 120 weight-*, calculated on 100 parts by weight of plastic binder, of a finely divided filler, as well as possibly processing agents, color pigments and/or modifiers. 5 . Edge band according to one or more of claims 2 and 4, characterized in that more than 60 weight-*, and preferably more than 75 weight-* of that in the polyolefin layer (13) and/or the middle layer (12') or the upper layer (12 ) used fillers are treated and/or coated with a surface treatment agent and/or a reactive substance in an amount by weight of from 0.05 to 10 weight-*, calculated on 100 parts by weight of filler, preferably 0.5 to 6 weight-*, calculated of 100 parts by weight filler, and that the mean grain diameter of the filler or filler mixture apart from cellulose is 0.01 to 30 µm and preferably 0.1 to 10 µm. 6. Edge band according to one or more of claims 1 to 5, characterized in that a further polyolefin layer (13) is arranged above the intermediate layer (12, 12') which contains or consists of polypropylene and/or polyethylene, preferably HDPE, as plastic, and contains or consists of 0.5 to 55 weight-* and preferably 3 to 35 weight-* of an organic filler or a filler mixture, preferably cellulose with an average particle size of from 5 to 100 pm and preferably 7 to 50 pm, and a largest average length of 250 pm and preferably 200 pm, and/or starch (calculated on the sum of polyolefin and organic filler) as well as possibly processing aids, color pigments, dyes and/or modifiers. 7. Edge tape according to one or more of claims 1 to 6, characterized in that over the intermediate foil (12 or 12') and/or over the filler-containing polyolefin layer (13) immediately or via an adhesion layer (14, 14') and/or at least one pressure layer or color printing layer (15), a varnish layer (16) or a protective layer (17) is provided. 8. Edge band according to one or more of claims 1 to 7, characterized in that the single or multi-layer, preferably UV stabilizer and/or UV absorber containing polymethyl methacrylate, polyamide and/or polyester protective layer (17) is one by extrusion, co-extrusion or layer obtained by coating application and/or additionally contains a fluoropolymer, an acrylate and/or polyacrylate and/or a flexibilizing organic chemical compound or a flexibilizing polymer for the protective layer. 9. Edge band according to one or more of claim 8, characterized in that the extruded, co-extruded or multi-layer protective layer (17) has a thickness of 20 to 350 pm and preferably 30 to 250 pm has a UV absorber content and/or UV stabilizer content of 0.02 to 15 weight-* and preferably 0.2 to 5 weight-*, calculated on 100 parts by weight of polymer in the protective layer, and/or contains or consists of at least one flexibilizing acrylate or polyacrylate and/or polyvinylidene fluoride. 10. Edge band according to one or more of claims 7 and 8, characterized in that the lacquer layer (16) or the protective layer (17) is a layer obtained by coating application which is preferably applied with the combined use of at least one organic chemical solvent in a layer thickness of 5 to 80 pm, preferably 8 to 40 pm. 11. Edge tape According to one or more of claims 7 to 9, characterized in that the co-extruded or multi-layer varnish layer (16), protective layer (17), has at least one lower polymethyl methacrylate-containing layer which preferably contains at least one flexibilizing acrylate or polyacrylate, and at least exhibits a polyvinylidene fluoride-containing upper layer. 12. Edge tape according to one or more of claims 7 to 11, characterized in that an adhesion layer (14) is arranged under the transparent lacquer layer or transparent protective layer (17) which contains or consists of an alloy or a mixture and/or a co -, or graft polymer of an olefin or polyolefin, preferably polyethylene and/or polypropylene with an acrylic ester, preferably methyl, ethylene, butyl acrylic ester, and/or maleic anhydride and/or with an acrylate homo-, co- and/or terpolymer and /or a methacrylic homo-, -co- or terpolymer. 13. Edge tape according to one or more of claims 7 to 11, characterized in that, under the lacquer layer (16) with a preferably smooth surface, protective layer (17), a transparent adhesive layer (14) is arranged which is applied preferably under application of at least one solvent or diluent on the underside of the top foil or top layer (with subsequent evaporation, evaporation or removal of the solvent or diluent or a significant part thereof), which contains or consists of a thermoplastic acrylate homo-, -co - and/or -terpolymer, preferably in combination with a polyisocyanate, and/or a crosslinkable, OH group-containing acrylate, preferably in combination with a polyisocyanate, and/or methacrylate homo-, -co- and/or -terpolymer and/or a polyisocyanate, preferably hexamethylene diisocyanate, and/or an alloy or mixture of one or more compounds. 14. Process for the production of an edge tape (wrapper) of plastic containing fillers and/or pigments, which is printed and/or embossed and which contains at least one layer which is a polyolefin layer or polyolefin-containing layer and which contains or consists of a propylene homo- and/ or copolymer and/or a high-density ethylene, HDPE, and has an adhesion promoter layer (11) arranged immediately underneath or via one or more intermediate layers, whereby a non-adhesive, solvent-free, co-extruded adhesion layer containing or consists of a polar group-containing, water-heavy or water-insoluble plastic in the form of a co-, ter- and/or graft polymer or an alloy or mixture thereof, characterized in that at least one polyolefin layer is used as middle layer or upper layer (12, 12') which contains or consists of a propylene homo- and/or copolymer and an HDPE and/or LLDPE with a weight ratio between the propylene homo- or copolymer (with a comonomer proportion of less than 50 weight-*) and HDPE and/or LLDPE of 40:60 to 60:40, and also contains at least one stabilizer and/or a lubricant and/or at least one pigment or dye, that the co-extruded or repeatedly extruded composite layer (11, 12) and possibly one or more further layers are passed through at least one first pair of rollers, preferably smoothing rollers , embossing rollers and/or smoothing and embossing rollers, whereby the pair of rollers exhibits a temperature of 10 to 50°C and preferably 15 to 35°C as the roller gap, the layer material and the thickness of the layer respectively the composite layer web are set so that a bead develops on it opposite the adhesion layer lying side and the layer immediately before the further cooling and after the cooling or after the further processing which takes place by extrusion, carding or lamination with at least one further plastic layer, at a material thickness of 400 to 4000 pm, is cut, sawn or milled into strips of width 12 to 200 mm and preferably 15 to 100 mm. 15 . Method according to claim 14, characterized in that at least an ethylene-vinyl acetate co- and/or terpolymer, an ethylene acrylic acid ester or ethylene acrylic acid co- or terpolymer, an ethylene methacrylic acid ester or ethylene methacrylic acid is used as plastic for the coextruded adhesive layer -co- or -terpolymerizate, a polymerizate containing maleic acid or maleic acid, -co- or -terpolymerizate and/or a polymerizate, co- or terpolymerizate containing paratoluenesulfonic acid or -sulfonic acid group. 16. Method according to claims 14 and 15, characterized in that the co-extruded or repeatedly extruded composite layer (11, 12) and possibly one or more additional layers from the wide-slot extrusion die are brought onto a cooling or casting cooling roll and cooled or in during the first third of the cooling or casting cooling roll circumference, preferably during the first quarter of this (calculated from the point on the cooling roll where the forging hits), further processed, preferably by extrusion, carding or lamination, with at least one further plastic layer or layer web , preferably at a temperature from 40 to 110°C, is laminated or after or without this further processing, cut into 12 to 200 mm and preferably 15 to 100 mm wide strips, sawn or milled.