EP2535280A2 - Procédé destiné à distribuer des étiquettes placées sur une bande de support et procédé de fabrication de bandes de support équipées d'étiquettes - Google Patents

Procédé destiné à distribuer des étiquettes placées sur une bande de support et procédé de fabrication de bandes de support équipées d'étiquettes Download PDF

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Publication number
EP2535280A2
EP2535280A2 EP12168658A EP12168658A EP2535280A2 EP 2535280 A2 EP2535280 A2 EP 2535280A2 EP 12168658 A EP12168658 A EP 12168658A EP 12168658 A EP12168658 A EP 12168658A EP 2535280 A2 EP2535280 A2 EP 2535280A2
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EP
European Patent Office
Prior art keywords
labels
web
carrier tape
label
carrier
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.)
Withdrawn
Application number
EP12168658A
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German (de)
English (en)
Other versions
EP2535280A3 (fr
Inventor
Thomas Scheubner
Mona Sansone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CCL Label AG
Original Assignee
Bandfix AG
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Filing date
Publication date
Application filed by Bandfix AG filed Critical Bandfix AG
Publication of EP2535280A2 publication Critical patent/EP2535280A2/fr
Publication of EP2535280A3 publication Critical patent/EP2535280A3/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/0006—Removing backing sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip

Definitions

  • the invention relates to methods for dispensing existing on a carrier tape labels, wherein the labels are arranged on the top and the bottom of the carrier tape in each case in a row behind each other, and method for producing such carrier tapes.
  • Conventional self-adhesive labels which are further processed as roll material, are produced from a carrier label material which is coated on one side with a pressure-sensitive adhesive which is covered with an adhesive (also known as anti-adhesive or dehesive) carrier tape.
  • the carrier tape has the function to fix the diecuts and to transport in the printing press, so that a label roll in the form of an Archimedean spiral with individual, arranged in a row behind the other Label diecuts are created.
  • the carrier tape has the task of enabling further processing of the labels, in which the diecuts are removed from the carrier tape by a dispensing edge during labeling and adhered to the product.
  • the dispensing edge is usually a tapered sheet, in which the tip is rounded in a small radius, for example 3 mm.
  • the carrier tape (release paper, release film) is not part of the label, but only an aid for their production, storage or for further processing by Punching.
  • the carrier tape is not firmly bonded to the adhesive layer.
  • Abhesive coatings are widely used to make the described carrier tapes by applying a coating to sheet materials such as papers or films to reduce the adhesion tendency of adherend products to these surfaces.
  • the carrier tape must be removable from the label. By the carrier tape itself or by the removal of the carrier tape, the adhesive power of the PSA should not be significantly affected for later use.
  • the stability of the anti-adhesive coating (also referred to as a release coating) on the carrier tape, ie the abhesiveness, over long periods of time is important in order to ensure the function of this coating and the properties of the pressure-sensitive adhesive covered with the liner.
  • the carrier tape usually a silicone paper or a silicone film used, initially serves the stated purposes and must be disposed of after labeling, so after all labels are removed.
  • the carrier tape contributes a significant share of the label costs, it sometimes makes up half of the material content. In addition, costs arise through transport, storage and disposal of the carrier tape.
  • labels are applied to both sides (ie, the top and bottom sides) of a double-sided anti-adhesive backing tape.
  • half of the carrier tape is saved, which reduces both the label costs (resources) and follow-up costs through transport, storage and disposal of the carrier tape.
  • a roll made of a carrier web equipped with labels on both sides offers space for 25% more labels.
  • a label composite is used, consisting of a double-sided anti-adhesive equipped carrier tape on which are applied on both sides webs of label material, which are provided with adhesive. Furthermore, the label material is successively punched from both sides therein, which is less advantageous because thus the carrier tape can be injured from both sides due to variations in the thickness of the opposing web and its adhesive.
  • the opposite label web is pulled off and guided around the punching work, so that there is no risk for this first punching, as described above, to damage the carrier tape.
  • the second label material is then fed again, so that during the following punching of this second path such damage can take place by punching the carrier tape.
  • the contour in the second punching is within that of the first punching on the opposite side.
  • the object of the present invention is to provide methods by which labels which are arranged one behind the other on the upper side and the underside of a carrier tape can be dispensed reliably and with high efficiency, and methods by which a carrier tape can be produced the Labels on the top and the bottom are each arranged in a row one behind the other.
  • the invention relates to a method for dispensing existing on a carrier tape labels, wherein the labels are arranged on the top and the bottom of the carrier tape in each case in a row one behind the other.
  • the carrier tape is guided in the direction of a dispensing edge with the labels applied on the top and bottom side.
  • the labels are removed on the top or the bottom by a transfer device of the carrier web and received by the conversion device.
  • the carrier web is then guided over a dispensing edge in such a way that the side of the carrier web is in direct contact with the dispensing edge, on which there are no labels.
  • the labels located on the carrier web are dispensed at the dispensing edge.
  • the invention thus describes a process-reliable method for labeling label rolls with labels on both sides of a carrier, which can be integrated into existing labeling equipment and wherein the dispensing operation is carried out by means of conventional dispensing edges.
  • FIG. 1 This advantageous embodiment of the invention is disclosed in FIG. 1 shown.
  • the label roll (2) with punched labels (3 and 4), which are located on the upper and the lower side of the carrier tape (5), in the development (1) is first unwound and guided direction donation edge (6).
  • the carrier web (5) via a transfer device (7, 8) is guided, in which the labels (4) with the non-adhesive top of the conversion device (7, 8) and thus removed from the carrier web (5) are removed.
  • the labels are fixed on the transfer device (7, 8) and transported by the transfer device (7, 8), while the carrier web (5), only equipped with the labels (3) on the upper side, via a take-off device, for example a Roller (9), removed from the conversion device (7, 8) and further towards the dispensing edge (6) is guided.
  • a take-off device for example a Roller (9
  • dispensing on the upper side of the carrier tape (5) located labels (3) via a conventional dispensing edge (6) wherein the execution of the dispensing edge (6) are varied and any known and common dispensing edge can be used.
  • the dispensing edge (6) in the form of a pointed wedge, wherein the carrier tape (5) is guided over the top. This is preferably rounded, more preferably with a radius of 3 mm.
  • the labels (4) located on the conversion device (7, 8) are again laminated onto the carrier strip (5).
  • the conversion device (7, 8) instead of a preferred roller (7) by a moving conveyor belt (8) are formed.
  • any differently shaped, for example, curved moving transport aids fulfill the same function, namely to receive the labels, to fix and continue to transport.
  • the labels (4) located on the conversion device (7, 8) preferably have no contact with the carrier tape (5) in the period after removal from the carrier tape (5) until re-laying on the carrier tape (5).
  • the labels (4) located on the transfer device (7, 8) are in contact with the carrier tape (5) at the point where they are removed and with the carrier tape (5) at the point where they are reloaded become. In this way, a secure guidance of the labels (4) in the conversion device (7, 8) is possible.
  • the peripheral speed of the conversion device (7, 8) corresponds to the web speed of the carrier tape (5) to ensure a tension-free removal and placing the labels (4) on the carrier tape (5).
  • the conversion device (7, 8) is a driven roller (7).
  • the labels (4) in the conversion device (7, 8) cover.
  • the labels (4) are not applied again at exactly the same location of the carrier tape (5) but slightly offset, in particular by one to two centimeters in the machine direction.
  • the conversion device (7, 8) preferably a roller (7) or a conveyor belt (8), provided with a vacuum or vacuum device, which generates a negative pressure or a vacuum in the interior of the conversion device (7, 8) the labels (4) located on the outer surface of the transfer device (7, 8) can be fixed.
  • it is a perforated or porous cylinder, in which a negative pressure is applied inside, so that the labels thereon are sucked and adhere to the cylinder.
  • the conversion device (7, 8) for removing the labels (4) from the carrier tape and their further transport on the conversion device (7, 8) (as mentioned preferably on a cylinder (7) or a belt (8)) in addition to the preferred negative pressure (or in addition to) also other methods available.
  • adhesion to labels (4) is ensured from films by static charging, with the labels (4) are charged and thus adhere to the conveyor belt (8) or the cylinder (7).
  • the label material should be chosen so that the best possible adhesion can be achieved by static electricity.
  • self-adhering materials may be used, such as adhesive films or conveyor belts or cylinder surfaces made of adhesive or blocking plastic materials.
  • adhesive films or conveyor belts or cylinder surfaces made of adhesive or blocking plastic materials.
  • plastics are known and are used for example for cleaning film webs in printing machines or for the protection of surfaces.
  • the detachment of the labels (4) from the carrier web (5) is preferably effected by means of a roller (9) over which the carrier web (5) is guided while the labels (4) remain in the transfer device (7, 8). Damage to the labels (3) on the other side of the carrier web (5) is thus avoided.
  • Advantageous are small roll diameters up to 6 mm or 3 mm in diameter. In order to prevent sagging of the roller (9) at small diameters, these can optionally be supported by larger rollers located behind it. These can, as in FIG. 8 can be seen, if necessary, also cascade-like consist of several rollers, which are arranged with larger diameters behind the roller (9) for support.
  • the labels After the transfer of the labels (4) on the transport cylinder (7) or the conveyor belt (8), the labels must remain fixed on this position (10). This is done by means of the above-mentioned methods, preferably negative pressure or electrostatics, self-adhesive plastics or the like.
  • the carrier web (5) is wound with the Careaufgespendeten labels (4) to a roll in a winder (12), which can later be re-supplied to this or another dispensing process.
  • the roll In the second dispensing operation, the roll can be clamped the other way around in the development (1). It goes through the same path.
  • This embodiment of the invention is not optimized insofar as that for the dispensing of all labels an additional roll change and thus an additional work during the labeling process are required. Also, if necessary, at the end of production, there are two remaining rolls in processing (1) and (12) in the event that the roll in processing (1) has not been used completely.
  • the inventive method is further developed so that the entire roll (2) with the located on the upper side and on the lower side of the carrier tape labels (3, 4) can be labeled in one operation.
  • the label web must be turned beforehand by means of a conventional web turning device (16). Subsequently, the labels (4) are applied with a conventional dispensing edge, as they have already been explained in detail above. Subsequently, the empty carrier tape (5) is wound in a winding (13).
  • labels (3, 4) are brought to the dispensing edge with the carrier web.
  • the carrier tape (5) stops until the item to be labeled is in the appropriate position.
  • the carrier tape (5) moves on for the labeling process again.
  • the speed is usually above the speed of the goods.
  • the carrier tape (5) moves discontinuously in a continuous start / stop cycle.
  • the carrier tape (5) when the donation process is used, as the FIG. 3 shows, it is desirable that the carrier tape (5) also runs continuously over as long a distance as possible at a constant speed. Only in the region of the dispensing edge (6, 15) should the carrier tape (5) have a discontinuous movement.
  • FIG. 4 shown material stores (17), which provide for a decoupling of the carrier tape (5) in the region of the dispensing edges (6, 15) from the rest of the carrier tape (5).
  • the carrier tape (5) is continuously guided from the left towards the upper dispensing edge (6). If the carrier tape (5) at the dispensing edge (6) just stand still, the carrier tape (5) is guided into the first memory and the fast propulsion of the carrier tape (5) at the dispensing edge (6) retrieved from this again.
  • the second memory (17) which operates so that after the dispensing operation discontinuously running carrier tape (5) is fed back into the system at a continuous speed.
  • the two lower material storage (17) work on the same principle.
  • FIG. 5 An alternative embodiment of the invention shows FIG. 5 , With this variant, all labels (3, 4) can be used on the label roll (2), without additional additional expenditure due to a roll change of the roll, which has arisen in the winding (12) from the carrier web (5) provided with the labels (4).
  • the role (2) is based on the processing (1) - as in FIG. 1 described - unwound, with which all on the upper side of the carrier tape (5) located labels (3) are dispensed, and at the same time in the reel (12) wound with the remaining labels (4).
  • the carrier web (5) from the winding (12) by means of a roller (18) the end of the carrier web (5), which results from the almost complete unwinding of the label roll (2) on the unwinding (1), and glued to it to form a splice, while at the same time the carrier web (5) is severed before the splice.
  • the carrier web (5) has to stop for a short time over the entire run length, which is achieved by using material stores (17), analogous to those in FIG. 4 shown, can be supported. This applies in particular to the area before and after the splice to be formed.
  • the winding (12) is for unwinding, the carrier strip (5) remaining after the second dispensing is fed to a second winding (19).
  • either two labels (3, 4) of the same type, which are applied on both sides of the carrier tape (5), can be dispensed on a label roll (2).
  • the donation process can be as described in Figure 1 to 5 respectively.
  • Advantage in the method, as in FIG. 3 it is shown that the efficiency of donation with two donor edges (6, 15) can be increased.
  • different labels may also be applied on both sides of the carrier tape (5), preferably those which are needed on both sides of a packaging material, for example a bottle or a crucible become.
  • a packaging material for example a bottle or a crucible become.
  • FIG. 1 For dispensing this set is in FIG. 1 presented method only limited.
  • the automatic roll change according to FIG. 5 is not applicable here.
  • the method is for this purpose FIG. 3 very good usable with appropriate material storage, as in FIG. 4 are shown.
  • the second part of this invention describes preferred methods for making label webs with labels on both sides of a carrier tape.
  • the second punch preferably consists of a punching roller, which punches the second label web through the adhesive, and a counterpressure roller.
  • the punching roller is anti-adhesive equipped.
  • the counter-pressure roller consists of a porous or perforated cylinder to fix the labels via vacuum on the counter-pressure roller.
  • the web (21) is punched in a conventional manner (23), wherein as in FIG. 6 shown the web (21) is punched from below and therefore first by means of a turning cross (36) is turned. Subsequently, the punched web (21) is diverted and passed under a second punching unit (30). According to the invention this can also be done in the opposite way, in which the web is not turned, punched from above and passed over the subsequent punching. Furthermore, from a second development (25) another label web (28) unwound, in which it is a label material, also called printing material (film or paper) is, which is not initially provided with adhesive. As described for the first web (21), this second web (28) can also be printed in a further printing device (27).
  • a label material also called printing material (film or paper)
  • the material web (28) is provided in an application station (29) with adhesive, as shown in the EP 1 321 919 A1 and EP 1 818 893 A1 is described.
  • adhesive as shown in the EP 1 321 919 A1 and EP 1 818 893 A1 is described.
  • slot dies particularly those in the curtain coating method or by means of a roller stick nozzle, in order to achieve an adhesive application in no-label-look quality (no-label labels are printed, transparent adhesive labels which have the impression on the smooth surface direct printing, the adhesive must be highly transparent and without any structures).
  • hotmelts in particular UV acrylates or those of synthetic rubber, polyolefin adhesive or the like, are used as adhesives for this purpose.
  • the printed web is punched in a punching device (30) without being previously laminated to the first web (21).
  • the punching is done according to FIG. 6 also from below. Since an adhesive material is punched, the punching tool (30) must be anti-adhesive equipped.
  • a porous or perforated cylinder (31) is used for this purpose.
  • the label web with the matrix ie the material in the spaces between the diecuts, transported by the impression cylinder (31), or it is already removed at this point this matrix, and only the labels themselves remain on the impression cylinder (31) adhere
  • a negative pressure is applied, but preferably only in the region of the cylinder, which is looped by the material web (28).
  • the web is discharged via a further roller (33), wherein in the nip - formed from counter-pressure cylinder (31) and roller (33), the laminating point at which transfer the labels from the second web (28) on the web (21) become.
  • additional compressed air can be employed at the laminating point, so that the labels are loosened better.
  • the fixation of the labels and the further transport can be carried out on this up to the fecal point by means of electrostatics, as already at earlier point in FIG. 1 is described. All methods described there as possibilities can also be used according to the invention for this purpose. From the laminated web (34) before the winding (35) nor the above-described matrix (37), the punched grid, optionally removed from both label webs.
  • FIG. 7 describes a further preferred method for producing label webs with labels on both sides of a carrier web.
  • a web is used, consisting of a backing sheet (40), which is anti-adhesive on both sides, and a label web (39), consisting of a label material equipped with an adhesive.
  • the development (38) can be part of a label printing machine.
  • the web is printed using the usual printing methods such as offset, book, gravure, flexo or screen printing in a printing device (41).
  • printing methods such as offset, book, gravure, flexo or screen printing in a printing device (41).
  • all other methods such as hot or cold foil stamping, inkjet or digital printing are available for decoration.
  • this stamped label web is fed to a transfer device (43), the stamped web (45) being separated from the carrier web (56).
  • a conversion device (43) is preferably a porous or perforated cylinder (43) use to fix the labels on the cylinder (43).
  • a porous or perforated cylinder (43) use to fix the labels on the cylinder (43).
  • the label web with the matrix so the material in the spaces between the diecuts, transported by the cylinder (43), or it is already at this point (or before) this matrix removed, and only the labels themselves remain on the cylinder (43).
  • a negative pressure is applied, but preferably only in the region of the cylinder (43), which is wrapped by the material web.
  • the web is removed via another roller (53), wherein in the nip - formed from cylinder (43) and roller (53), the laminating point at which the labels from the web (39) are transferred to the web (40) ,
  • additional compressed air can be employed at the laminating point, so that the labels are loosened better.
  • the fixation of the labels and the further transport on this up to the laminating point (53) also take place by means of electrostatics, as already at FIG. 1 is described. All methods described there as possibilities can also be used according to the invention for this purpose.
  • a further label material (47) is unwound, which is a substrate (foil or paper), which is not provided with adhesive. As described for the first material web, this web can also be printed (48). If necessary, the web is turned (49), depending on whether you want to generate a counter or frontal pressure. Subsequently, the material web is provided in another application station (5) with adhesive, as shown in the EP 1 321 919 A1 and the EP 1 818 893 A1 is described. It can do this the usual commissioned works are used.
  • slot dies are particularly preferred, those in the curtain coating method or by means of a roller bar nozzle in order to achieve an adhesive application in no-label-look quality.
  • hotmelts are used as adhesives, in particular UV acrylates or those of synthetic rubber, polyolefin adhesive or the like.
  • the printed web is laminated onto the carrier web (56) originating from the other label web (39) (51).
  • this label composite is punched in the usual way (from below).
  • the punched web of the conversion device (43) is supplied and laminated with an added roller (53).
  • the now existing composite of two stamped label materials, which are each provided with an adhesive, which are applied to a double-sided anti-adhesive carrier tape, is rolled up in a winding (55).
  • the matrix described above is removed with, for example, a conventional grid winding (54) of both label webs, unless this has already taken place at an earlier point after the punching.
  • the carrier web of the label can be selected from papers or various films; in particular, said transparent films are preferred.
  • Biaxially oriented polypropylene is characterized by its very high tensile strength and low elongation.
  • Preferred for the production of the labels are biaxially oriented films based on polypropylene.
  • the thicknesses of the biaxially oriented films based on polypropylene are preferably between 20 and 100 ⁇ m, in particular between 25 and 75 ⁇ m, very particularly between 30 and 65 ⁇ m.
  • Biaxially oriented films based on polypropylene can be produced by blown film extrusion or by means of conventional flat film systems. Biaxially stretched films are produced in one or more layers. In the case of multilayer films, the thickness and composition of the different layers may be the same, but also different thicknesses and compositions are known.
  • Suitable for the labels are monolayered, biaxially or monoaxially stretched films or multilayered, biaxial or monoaxial polypropylene based films which have a sufficiently strong bond between the layers since delamination of the layers during use is disadvantageous.
  • Films based on rigid PVC are used for the production of labels as well as films based on soft PVC.
  • Foils based on rigid PVC can also be used for the labels.
  • the thicknesses of the films are preferably between 20 and 100 ⁇ m, in particular between 25 and 65 ⁇ m, very particularly between 30 and 60 ⁇ m.
  • Polyester-based films for example polyethylene terephthalate, are also known and can also be used to make the labels.
  • the thicknesses of the films based on PET are between 20 and 100 ⁇ m, in particular between 25 and 65 ⁇ m, very particularly between 30 and 60 ⁇ m.
  • the labels are preferably equipped with a pressure-sensitive adhesive.
  • Adhesive adhesives are adhesives which, even under relatively slight pressure, permit a permanent bond with the primer and, after use, in the Substantially residue-free from the primer can be replaced again.
  • Pressure-sensitive adhesives are permanently tacky at room temperature and therefore have a sufficiently low viscosity and high tack, so that they wet the surface of the respective adhesive base even at low pressure. The adhesiveness of the adhesives is based on their adhesive properties and the removability on their cohesive properties.
  • the labels may contain as pressure-sensitive adhesive one which is applied to the carrier as an aqueous dispersion adhesive or as a solvent-containing system. Preference is given according to the invention hotmelts, including those which are cured after application from the melt with UV radiation.
  • the adhesive can be applied over the entire surface or adapted to the particular application partially.
  • the PSA is preferably one based on natural rubber, PUR or acrylates or may contain styrene-isoprene-styrene block copolymers.
  • a pressure sensitive adhesive is a viscoelastic composition that remains permanently tacky and tacky at room temperature in a dry state. The bonding takes place by light pressure immediately on almost all substrates.
  • Suitable masses are for example in the " Handbook of Pressure Sensitive Adhesive Technology ", second edition, edited by Donatas Satas, Van Nostrand Reinhold, New York, 1989 described.
  • the self-adhesive composition used is in particular a commercially available pressure-sensitive adhesive composition based on PUR, acrylate or rubber, preferably a UV-crosslinkable acrylate hot-melt pressure-sensitive adhesive mixed with additives and resins.
  • the Adhesive Novarad RC 21151 from Novamelt is an example.
  • an acrylate hot melt base which has a K value of at least 20, in particular greater than 30, obtainable by concentrating a solution of such a composition into a system which can be processed as a hotmelt.
  • benzoin derivatives may be copolymerized, such as benzoin acrylate or benzoin methacrylate, acrylic acid or Methacrylic esters. Such benzoin derivatives are in the EP 0 578 151 A1 described.
  • the adhesive on Acrylathotmeltbasis can also be chemically crosslinked.
  • An adhesive which is suitable is a low molecular weight acrylate hot melt pressure-sensitive adhesive, such as that marketed under the name acResin UV or Acronal®, in particular Acronal DS 3458, by BASF.
  • This adhesive with a low K value obtains its application-oriented properties through a final radiation-induced crosslinking.
  • Adhesive resins serve as tackifiers.
  • Suitable tackifier resins include, inter alia, preferably nonhydrogenated, partially or fully hydrogenated resins based on rosin or rosin derivatives, hydrogenated polymers of dicyclopentadiene, non-hydrogenated, partially, selectively or completely hydrogenated hydrocarbon resins based on C 5 , C 5 / C 9 or C 9 monomer streams, or polyterpene resins based on ⁇ -pinene and / or ⁇ -pinene and / or ⁇ -limonene.
  • the aforementioned adhesive resins can be used both alone and in admixture.
  • Both solid and liquid resins can be used at room temperature.
  • the adhesive application is preferably between 5.0 and 50.0 g / m 2 , more preferably between 10.0 and 30.0 g / m 2 and particularly preferably between 15.0 and 25.0 g / m 2 .
  • the latter corresponds to a thickness between 15 and 25 microns.
  • a double-sided siliconized PET film can be used, preferably with a thickness of 30 microns, for example, the silicone film Silphan S30 M74F from Siliconature.
  • a suitable release liner carrier materials of various film materials such as PP each with a preferred thickness between 20.0 and 50.0 microns conceivable and common release papers.
  • crosslinkable silicone systems are often used. These include mixtures of crosslinking catalysts and so-called thermally curable condensation or addition-crosslinking polysiloxanes.
  • condensation-crosslinking silicone systems tin compounds, such as dibutyltin diacetate, are frequently present in the composition as crosslinking catalysts.
  • Silicone-based release coatings on an addition-curing basis can be hardened by hydrosilylation.
  • These separation systems usually include the following components: an alkenylated polydiorganosiloxane (especially alkenyl-terminated linear polymers), a polyorganohydrogensiloxane crosslinking agent, and a hydrosilylation catalyst.
  • the labels may be circular, for example, with a diameter of 30 mm, oval, square or rectangular and square, the latter may also have rounded corners beyond.
  • the outer shape of the labels can be varied almost unrestrictedly adapted to the respective application.
  • the label material and the adhesive layer thereon are transparent.
  • the transparency or the transmittance of an object depends on its extinction coefficient, the reflection on the surfaces as well as the Wavelength of the light used for the examination.
  • the extinction coefficient is substance-specific and depends on the absorption of the material used. In order to obtain a material with a high transmittance, both absorption and reflection must be avoided.
  • the reflection occurs at all interfaces and thus reduces the transmission coefficient of an object.
  • n 2 1.6
  • the maximum achievable transmission of a polyester film with a refractive index n 2 1.6, taking into account that the light steel obeys Fresnel's reflection law both when entering the film and exiting the film, does not reach a value of 90% exceed.
  • both the adhesive and the label material are transparent in such a way that the transparent label formed therefrom preferably has a transmission of greater than 60%, in particular a transmission greater than 90% at a wavelength of 350 to 1150 nm.
  • the processes according to the invention are particularly advantageously used for visually appealing labels which can be used, for example, on cosmetic packaging.
  • an acrylate hotmelt composition is used, which, unlike other adhesives, is highly transparent and, because of its UV resistance, does not age as quickly as, for example, natural rubber compositions. That is, the label remains unchanged for a long time, in particular, does not discolor the adhesive (it does not occur the typical yellowing of the adhesive).
  • acrylate hotmelt compound is very insensitive to many fillers, which are later filled into the packaging provided with the labels. That is, should the contents unintentionally, which is the case in particular during later use of the packaging, come into contact with the label, this does not mean that the adhesive of the label deteriorates in its adhesive performance and the label virtually "swim" on the package "begins.
  • Such labels are furthermore preferably suitable for the labeling of containers from the detergents and cleaners industry, from the lubricant industry as well as for the beverage or food industry, generally wherever labels are needed in large quantities and must be applied at high speeds. Due to the large number of uses, almost any label material (films, paper, composite materials) in any desired coloration (transparent, white or colored) comes into question. Depending on the application, high value is placed on the optical properties of the adhesive with regard to transparency and resistances or else inexpensive adhesives are used, in particular if the label material is opaque.

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  • Making Paper Articles (AREA)
  • Labeling Devices (AREA)
EP12168658A 2011-05-26 2012-05-21 Procédé destiné à distribuer des étiquettes placées sur une bande de support et procédé de fabrication de bandes de support équipées d'étiquettes Withdrawn EP2535280A3 (fr)

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DE102011076552A DE102011076552A1 (de) 2011-05-26 2011-05-26 Verfahren zum Verspenden von auf einem Trägerband vorhandenen Etiketten und Verfahren zur Herstellung von mit Etiketten ausgerüsteten Trägerbändern

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EP2535280A2 true EP2535280A2 (fr) 2012-12-19
EP2535280A3 EP2535280A3 (fr) 2013-03-13

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP3103637A1 (fr) * 2015-06-10 2016-12-14 UPM Raflatac Oy Étiquette imprimable comprenant une couche de face transparente et une couche adhésive transparente

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DE2212995A1 (de) 1972-03-17 1973-09-27 Schaefer Etiketten Verfahren und vorrichtung zum herstellen und ausgeben von selbstklebeetiketten
EP0578151A1 (fr) 1992-07-08 1994-01-12 Beiersdorf Aktiengesellschaft Adhésifs thermofusibles sensibles à la pression pour des produits médicaux
DE4313008C1 (de) 1993-04-21 1994-11-10 Beiersdorf Ag Selbstklebemasse auf Acrylathotmelt-Basis, Verfahren zu deren Herstellung und deren Verwendung
EP1321919A2 (fr) 2001-12-21 2003-06-25 tesa AG Etiquette auto-adhesive, méthode de fabrication et son utilisation
DE60312458T2 (de) 2002-11-14 2007-11-29 L'oreal Verfahren zur Herstellung eines Etikettenträgers
US20080017303A1 (en) 2006-07-19 2008-01-24 Crouch Tarquin L Method and device for high speed labeling of articles using two-sided labelstock

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EP0578151A1 (fr) 1992-07-08 1994-01-12 Beiersdorf Aktiengesellschaft Adhésifs thermofusibles sensibles à la pression pour des produits médicaux
DE4313008C1 (de) 1993-04-21 1994-11-10 Beiersdorf Ag Selbstklebemasse auf Acrylathotmelt-Basis, Verfahren zu deren Herstellung und deren Verwendung
EP1321919A2 (fr) 2001-12-21 2003-06-25 tesa AG Etiquette auto-adhesive, méthode de fabrication et son utilisation
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DE60312458T2 (de) 2002-11-14 2007-11-29 L'oreal Verfahren zur Herstellung eines Etikettenträgers
US20080017303A1 (en) 2006-07-19 2008-01-24 Crouch Tarquin L Method and device for high speed labeling of articles using two-sided labelstock

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3103637A1 (fr) * 2015-06-10 2016-12-14 UPM Raflatac Oy Étiquette imprimable comprenant une couche de face transparente et une couche adhésive transparente
US9809730B2 (en) 2015-06-10 2017-11-07 Upm Raflatac Oy Printable label comprising a clear face layer and a clear adhesive layer
US10233359B2 (en) 2015-06-10 2019-03-19 Upm Raflatac Oy Method for labeling items with labels comprising a clear face layer and a clear adhesive layer

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