EP1321919A2 - Etiquette auto-adhesive, méthode de fabrication et son utilisation - Google Patents

Etiquette auto-adhesive, méthode de fabrication et son utilisation Download PDF

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Publication number
EP1321919A2
EP1321919A2 EP20020025966 EP02025966A EP1321919A2 EP 1321919 A2 EP1321919 A2 EP 1321919A2 EP 20020025966 EP20020025966 EP 20020025966 EP 02025966 A EP02025966 A EP 02025966A EP 1321919 A2 EP1321919 A2 EP 1321919A2
Authority
EP
European Patent Office
Prior art keywords
printing
adhesive
web
printing material
self
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20020025966
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German (de)
English (en)
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EP1321919A3 (fr
EP1321919B1 (fr
Inventor
Thomas Scheubner
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
Tesa SE
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Filing date
Publication date
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Application filed by Tesa SE filed Critical Tesa SE
Priority to EP07108135A priority Critical patent/EP1818893B1/fr
Publication of EP1321919A2 publication Critical patent/EP1321919A2/fr
Publication of EP1321919A3 publication Critical patent/EP1321919A3/fr
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Publication of EP1321919B1 publication Critical patent/EP1321919B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02Forms or constructions
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/914Transfer or decalcomania
    • Y10S428/915Fraud or tamper detecting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/916Fraud or tamper detecting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/13Hollow or container type article [e.g., tube, vase, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/14Layer or component removable to expose adhesive
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/14Layer or component removable to expose adhesive
    • Y10T428/1476Release layer
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/14Layer or component removable to expose adhesive
    • Y10T428/1486Ornamental, decorative, pattern, or indicia
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/28Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848Three or more layers

Definitions

  • the invention relates to self-adhesive labels, methods of manufacture this as well as their use.
  • Labels usually consist of several layers, for example one Printing material on which a self-adhesive coating is applied, as well as one Support material.
  • the carrier material is usually provided with a silicone separating layer. It has the task of carrying the actual label during its manufacture and its Protect adhesive layer from contaminants so that there are processing processes such as printing, punching, cutting, perforating etc. When punching The self-adhesive labels use the siliconized material as a punching pad.
  • Backing materials can be selected from release papers or various release films.
  • a common backing material for self-adhesive labels is satined kraft paper. Coated papers are also used. For special requirements, insensitivity to moisture, for example plastic-coated paper used. Furthermore special products are like carbonless backing papers available.
  • Plastic films are primarily chosen as the carrier material if the later one Application makes special demands. Should be a self-adhesive label for example imitating the appearance of a directly printed container (no-label look), adhesive bond manufacturers often recommend siliconized films that are highly transparent and are extremely smooth.
  • Cellulose that is bleached either conventionally or chlorine-free can serve as the basis for silicone paper.
  • Release papers are available in different colors. They are used in different grammages and thicknesses. The palette ranges from very thin papers to materials in cardboard thickness.
  • the factor separating behavior is mainly taken into account. Important characteristics for release paper are tear strength, resistance to punching, tensile strength, dimensional stability, etc. They must be tailored to the requirements of processing processes and manual or automatic dispensing of the labels.
  • the separation behavior can be influenced by the type of silicone coating and can therefore be set for different purposes. This plays a major role in the further processing of self-adhesive labels with automatic dispensers. Trouble-free and quick dispensing makes the self-adhesive label economically superior.
  • a special form of self-adhesive labels are the so-called strapless systems. They do without siliconized release papers or foils. A particular advantage of this label form is that there is no backing material accumulates as waste after application. Due to the lack of a carrier, however the choice of labels is limited to rectangular shapes, since die-cutting is not possible without a carrier. The self-adhesive label is only cut off in Labeling device instead.
  • Self-adhesive labels are used in very different applications and meet an extraordinarily wide range of different requirements. This is made possible by a selection of materials that are used in the label industry is more diverse than in any other branch. Therefore, for processing too Production resources are necessary that are equally versatile in their possibilities. The explains why all those available in practice for label production Procedures are used. In this context, the Printing on the self-adhesive labels.
  • the following overview of the different Printing technologies with a description of the respective basic principle make this easier Understanding of the possibilities in common printing processes such as letterpress, Flexographic printing, offset printing, screen printing or gravure printing, as well as in the so-called non-impact printing techniques or the digital process.
  • Letterpress printing can be seen as the classic process of duplication in printing become. It was - as the name expresses - already in the Middle Ages Mainly used for the production of books.
  • a printing form also called a printing medium, which consists of printing and non-printing parts.
  • the printing form is often referred to as a cliché.
  • photopolymer letterpress plates have almost completely replaced the etched or electroplated clichés of the past. Because the raised areas of the cliché represent the printing surfaces, letterpress printing is one of the high-pressure processes.
  • the printing parts are inked using an inking unit consisting of a series of rollers. They create a thin film of color and thus color the raised areas of the cliché. The ink is transferred directly from the printing form to the substrate under a certain pressure.
  • Flexographic printing is also one of the high-pressure processes.
  • a difference to letterpress is the printing form, which is much more elastic. This means that less contact pressure is required to transfer the motif directly from the printing form to the substrate. This is an important reason for the wide range of materials that can be printed using the flexographic printing process.
  • the processes also differ in terms of the colors, which have a rather viscous consistency in letterpress printing, while flexographic printing inks are much more fluid.
  • the inking units have a correspondingly simple structure.
  • the flexo clichés are colored using anilox rollers. They have depressions in the surface of the roller that transport a defined amount of ink. They are filled either via an immersion roller, which rotates in an ink pan, or via an ink chamber, which is placed on the anilox roller.
  • a specialty in the flexographic printing process is the printing with radiation-curing inks. While solvent- or water-based printing inks dry physically, in UV-flexographic printing the inks or varnishes are polymerized by the action of UV rays. The hardening reaction takes place in fractions of a second. This reduces the process-typical appearances of flexographic printing that arise from the elastic printing form, such as pinched edges or high dot gain. At the same time, it also makes it easier to print on difficult materials such as plastics, metallized foils, etc.
  • Offset printing is one of the flat printing processes. Printing and non-printing areas are almost on one level. Offset is an indirect printing process. The ink is first deposited on a blanket from the printing form and from there on the printing material. This is where the name of this process comes from. The separation of the printing and non-printing areas is based on the principle that fat and water repel each other. The printing areas of a metallic offset printing plate are prepared so that they are hydrophobic (water-repellent) and thus take on the greasy printing ink. The remaining areas remain hydrophilic (water-friendly). Both water and ink are fed to the offset plate for printing. An inking unit is used for inking, which is very similar to that of a letterpress machine.
  • a method that is rarely used for printing self-adhesive labels is gravure printing. It developed from old techniques of reproduction such as etching or copper engraving. Similar to these artistic processes, the printing areas are also etched or engraved in a printing form cylinder in gravure printing. To color the cylinder, it runs in an ink tray from which the very thin gravure ink is drawn. Excess paint is wiped off with a polished steel bar, the so-called squeegee. Gravure printing is known for high-quality image reproduction and consistent print quality. Typical areas of application are therefore the areas of catalog and magazine printing as well as the production of packaging. This method is particularly suitable for long runs in label production.
  • Screen printing owes its name to the principle of the process, which consists in Press the color through a fine mesh sieve onto the material to be printed.
  • the printing form is a mesh made of metal, textile or plastic threads.
  • the fabric meshes with a copyable Coating closed. After appropriate exposure, this layer is attached to the washed out unexposed areas.
  • the color is changed using a Squeegee pressed onto the substrate through these open meshes.
  • a major advantage of Screen printing is the high layer thickness in which the color can be applied. The opens the use of a wide range of special colors or special lacquers in the Screen printing process.
  • screen printing is used in two different process variants. The differences result from the structure of the printing form.
  • flat screen printing it is formed by a frame that is covered with a fabric.
  • the label web is fed under the flat screen for printing, stopped and printed.
  • the web is then transported on by a print image so that the next printing process can take place.
  • a stainless steel mesh is used for rotary screen printing, which is formed into a hollow cylinder.
  • the ink supply and the doctor blade are arranged in the interior of this cylinder. Due to the rotary structure, a continuous printing process is possible with this process.
  • DE G 81 30 861 is a multi-layer label described, in which a different colored cover layer is removed by the laser beam and thus the color contrast to the next layer of high quality lettering and Readability enables.
  • This label is a kind of engraving, with manipulation possibilities like with traditional printing with colors and No inks.
  • the label film is inserted through the Raw materials and the manufacturing process so brittle that removal of the glued labels from the adhesive substrates is only possible with destruction.
  • An additional security level is in the single-layer laser label according to DE G 94 21 868 describes: in addition to the advantageous properties of DE G 81 30 861 here the inscription not by engraving in the top layer, but by a Color change in the plastic layer itself causes subsequent manipulations the labels largely prevented.
  • JP 08/328474 A1 describes a textile clothing label which is attached to the top printed in a transparent, fluorescent color, with woven design and Print image should be approximately congruent.
  • a similar superficial print with UV-active, photochromatic inks is described in WO 88/01288 A1; however, an additional protective layer is required to protect the chemicals in this colored layer against oxygen and water necessary.
  • FR 2,734,655 A1 security marking for checks is achieved by that the printing under an IR-transparent layer is partially invisible in the visible
  • the wavelength range can be machine-identified / identified with special IR light is.
  • EP 0 727 316 A1 concealed security against forgery is achieved in that in an extra layer specifically on paper, two reactive components are present that result in a color reaction under pressure - but this is irreversible.
  • the ribbons with fluorescent particles described in JP 07/164760 A1 IR-excitable are transferred by heat with thermal transfer printers.
  • EP 0 453 131 A1 describes highly secured papers such as passports, shares, bank notes etc. described that in an intermediate layer between two permanently bonded layers Paper with the laminating adhesive fluorescent, especially UV fluorescent indicators be incorporated, which are only detectable when transmitting light of a suitable wavelength through the laminate, but not through reflection in reflected light. This system is for applications where a transmission of light through the glued label is not possible and unsuitable for the completely opaque laser labels.
  • labels are produced in such a way that directly on the printing material (paper or foil, for example 60 ⁇ m PP or 100 ⁇ m PE) is printed (frontal printing).
  • Such labels can also be covered with a laminating film (for example 12 ⁇ m PP) cover up to protect the print.
  • a laminating film for example 12 ⁇ m PP
  • a path is found there that allows variable and a cost-effective, customized security marking at the level of Install label stock.
  • the standard label film according to DE G 81 30 861 or DE G 94 21 868 is on the back of the film in front of the Coating with adhesive, printing is carried out.
  • Counter-printed labels are also known, in which a raw film (for example a 60 ⁇ m PP film) is printed in reverse and subsequently the coating with adhesive is carried out in further operations, the backing is laminated on and the labels are punched out. With these labels, the printing is on the side facing the adhesive. For easily understandable reasons, this process is very complex and therefore involves high manufacturing costs. Then there are also labels on the market with so-called interlayer printing. A, for example, 30 .mu.m laminating film is printed in reverse, laminated together in a suitable laminating station with a correspondingly thin (for example 30 .mu.m PP) self-adhesive material, and then the composite is punched. These types of labels are usually made in one operation.
  • a raw film for example a 60 ⁇ m PP film
  • This process can be used to achieve excellent silver printing (usually gravure printing).
  • the entire printing is on the inside of the lamination film (interlayer printing).
  • the print is not plastic, it shows no relief effect, which is desired for certain applications. This means that only the laminating film is printed from the inside, without additional printing on the top of the label.
  • the object of the present invention is, on the one hand, to create a self-adhesive label in which the printing material or a printing material layer has printing on both sides, in particular thus counter-printed elements (in the intermediate layer printing or counter printing) are combined with elements which are produced in the front printing.
  • the object of the invention includes providing methods for producing such self-adhesive labels.
  • the adhesive has a second substrate layer, on the underside of which Self-adhesive is coated, which if necessary with a release paper or is covered with a release film. Then the second substrate layer is the real one Substrate of the basic label and the first substrate layer the laminating film. Of the upper adhesive coating also represents the lamination adhesive of the label.
  • the printing ink is on the top of the printing material or the first printing material layer is printed in frontal printing, after the lamination is done.
  • the printing inks are used for counter-printed elements metallic colors (silver, gold printing etc.).
  • the label according to the invention is in addition to printing metallic colors in the form of counter-printed elements the same places on the top a raised print (frontal print), in particular a print with a transparent relief lacquer (for example from Sicpa, 78-3-021) or with a conventional transparent screen printing ink.
  • a raised print frontal print
  • a transparent relief lacquer for example from Sicpa, 78-3-021
  • a conventional transparent screen printing ink for example from Sicpa, 78-3-021
  • the relief character of a hot foil stamping can be simulated creates an effect that is very similar to hot foil stamping.
  • materials of the printing material or the first printing material layer foils can be used, especially monoaxially and biaxially stretched foils based on polyolefins, then films based on stretched polyethylene or stretched copolymers containing ethylene and / or polypropylene units, optionally also PVC films, PET films, films based on vinyl polymers, Polyamides, polyesters, polyacetals, polycarbonates
  • films based on stretched polyethylene or stretched copolymers, containing ethylene and / or polypropylene units, can be used as printing material use according to the invention.
  • Monoaxially stretched polypropylene is characterized by its very high tear strength and low elongation in the longitudinal direction.
  • Monoaxially stretched films based on polypropylene are preferred for producing the labels according to the invention.
  • the thicknesses of the monoaxially stretched films based on polypropylene are preferably between 20 and 100 ⁇ m, in particular between 25 and 65 ⁇ m, very particularly between 30 and 60 ⁇ m.
  • Monoaxially stretched films are predominantly single-layered, but in principle multilayered monoaxially stretched films can also be produced.
  • One-, two- and three-layer foils are predominantly known, and the number of layers can also be chosen to be larger.
  • the thicknesses of the biaxially stretched films based on polypropylene are in particular between 12 and 100 ⁇ m, especially between 20 and 75 ⁇ m, especially between 30 and 60 ⁇ m.
  • Biaxially stretched films based on polypropylene can be produced using blown film extrusion or be produced using conventional flat film lines. Biaxially stretched films both single and multi-layer. In the case of multilayer films The thickness and composition of the different layers can be the same here but also various thicknesses and compositions are known.
  • Single-layer, biaxial are particularly preferred for the labels according to the invention or monoaxially stretched films and multilayer, biaxial or monoaxial films Basis of polypropylene, which has a sufficiently firm bond between the layers have, since delamination of the layers is disadvantageous during use.
  • Rigid PVC films are also used for the production of labels like foils based on soft PVC.
  • Foils based on are preferably used for the labels according to the invention of hard PVC.
  • the thicknesses of the foils are preferably between 20 and 100 ⁇ m, particularly between 25 and 65 ⁇ m, especially between 30 and 60 ⁇ m.
  • Polyester-based films for example polyethylene terephthalate, are also known and can also be used to produce the labels according to the invention.
  • the thicknesses of the films based on PET are between 20 and 100 ⁇ m, particularly between 25 and 65 ⁇ m, especially between 30 and 60 ⁇ m.
  • the former are produced from only a single monomer, for example by polycondensation of an ⁇ -hydroxycarboxylic acid 1 or by ring-opening polymerization of cyclic esters (lactones) 2, for example
  • the latter is built up by polycondensation of two complementary monomers, for example a diol 3 and a dicarboxylic acid 4:
  • Branched and crosslinked polyesters are used in the polycondensation of three or get polyhydric alcohols with polyfunctional carboxylic acids.
  • polycarbonates carbonic acid polyesters
  • PET polyethylene terephthalate
  • PBT polybutylene terephthalate
  • PCDT poly (1,4-cyclohexanedimethylene terephthalate) e
  • These types of polyester can be varied widely in their properties by using other aromatic dicarboxylic acids (for example isophthalic acid) or by using diol mixtures in the polycondensation and
  • any self-adhesive materials which are usually used for producing self-adhesive labels.
  • this is a printing material which is coated with a self-adhesive composition, covered with a carrier, usually a release paper or a release film.
  • a carrier usually a release paper or a release film.
  • self-adhesive materials are used with this embodiment a thin substrate so that the total thickness of the first substrate layer laminated labels correspond to those of conventional labels.
  • Self-adhesive materials with a printing material based on PP with a are preferred Thickness of 25 to 60 ⁇ m, particularly preferably those with a thickness of 30 to 40 ⁇ m.
  • self-adhesive compositions can also be used without restriction be offered for self-adhesive materials.
  • self-adhesive compositions for no-label look labels etc. used.
  • UV-curing offset / flexo / book / screen printing inks or solvent-based gravure inks are offered for label materials made of polyolefin films, for example the Flexocure series for UV flexo printing from Akzo.
  • different color pigments and substances can be used in the printing inks.
  • recipes with RADGLO® pigments from Radiant Color NV / Holland or Lumilux® CD pigments from Riedel-de-Haen can be used.
  • Inorganic phosphors are also suitable.
  • Metal sulphides and oxides, mostly in combination with suitable activators, have proven to be favorable as long-afterglow substances, especially with emission of light in the yellow range. These are available, for example, under the trade name Lumilux® N or as luminous pigments with improved stability, luminosity and afterglow duration under the trade name LumiNova® from the company Nemoto / Japan.
  • luminescent materials are also suitable, which are caused by electron beams, X-rays etc. are excited as well as thermochromic pigments, which change with temperature change reversibly color.
  • thermochromic pigments which change with temperature change reversibly color.
  • electrically conductive paints is also possible.
  • the labels for example adhesive coating
  • the labels are sufficiently stable and not irreversible in the process conditions (possibly thermal Change drying, electron beam or UV curing, etc.).
  • the security marking is protected against external access because the For example, pressure is embedded between the label film and the adhesive layer. Subsequent manipulations are not to be feared, as a replacement only under Destruction is possible.
  • Customized "fingerprints" of the labels can be realized by different Colors or patterns can be printed. Especially regular line and Line patterns leave characteristic patterns of luminous dots on the label edges arise and are also particularly material and cost-saving. After the die cut or the laser cutting of the label and the application on the adhesive substrates is a reference when choosing a suitable lighting source on the edge of the label Recognize colors and geometries characteristic pattern.
  • this security label is particularly logistical and cost-effective noticeable. It can be on commercially available printing inks and non-specific label film material can be resorted to, while the latter is otherwise customized is to be produced. As such standard raw material, however, at the label manufacturers is only used as an intermediate product for your own production and not on the market unauthorized access is excluded. They are also small lot sizes and short delivery times possible.
  • Suitable adhesives for laminating are, for example, UV flexographic laminating adhesives, hotmelt laminating adhesives, pressure-sensitive adhesives, two-component adhesives or the like. UV laminating adhesives have proven to be advantageous.
  • the self-adhesive material can be produced with the UV 9402 laminating adhesive from Akzo, such a composite of the counterprinted first printing material web with the second printing material web.
  • Hotmelt laminating adhesives are particularly advantageous for the labels according to the invention.
  • the hot melt laminating adhesive A2700 from the company Novamelt which is equipped with a slot die, especially one with a rotating rod, is applied.
  • Hotmelt pressure sensitive adhesives are also ideal for lamination Intermediate layer printing, as well as for the self-adhesive coating at Reverse printing.
  • the labels according to the invention can be used as laminating adhesives or pressure sensitive adhesives a self-adhesive based on natural rubber, PUR, acrylates or styrene-isoprene-styrene block polymers contain.
  • a commercially available pressure-sensitive mass comes as a self-adhesive mass
  • Adhesive based on PUR, acrylate or rubber is used.
  • UV are customary and suitable for the use of counter printing according to the invention curing pressure sensitive adhesives, which are applied in the flexo process.
  • An acrylic hotmelt-based adhesive has been found to be particularly advantageous proven that has a K value of at least 20, in particular greater than 30, obtainable by concentrating a solution of such a mass into an as Hot melt processable system.
  • Concentration can be carried out in appropriately equipped boilers or extruders take place, especially with the associated degassing is a Degassing extruder preferred.
  • the solution of the mass can 5 to 80 wt .-%, in particular 30 to 70 wt .-% Contain solvents.
  • solvents are preferably used, especially low boiling hydrocarbons, ketones, alcohols and / or esters.
  • Benzoin derivatives can be polymerized into the acrylic hotmelt-based adhesive be, for example, benzoin acrylate or benzoin methacrylate, acrylic acid or Methacrylic esters. Such benzoin derivatives are described in EP 0 578 151 A1 described.
  • the acrylic hot melt adhesive can also be chemically cross-linked.
  • copolymers of (meth) acrylic acid and its esters with 1 to 25 carbon atoms, maleic, fumaric and / or itaconic acid and / or their esters, substituted (meth) acrylamides, maleic anhydride and other vinyl compounds are used as self-adhesive compositions , such as vinyl esters, in particular vinyl acetate, vinyl alcohols and / or vinyl ethers.
  • the residual solvent content should be less than 1% by weight.
  • An adhesive that is particularly suitable is a low molecular weight Acrylic hotmelt PSA, such as those under the name acResin UV or Acronal ®, in particular Acronal DS 3458, from BASF: This adhesive with low K value gets its application-oriented properties through a final crosslinking triggered by radiation.
  • an adhesive can be used, from the group of Natural rubbers or the synthetic rubbers or from any blend Natural rubbers and / or synthetic rubbers, the natural rubber or the natural rubbers basically from all available qualities such as Example crepe, RSS, ADS, TSR or CV types, depending on the required purity and Viscosity level, and the synthetic rubber or the synthetic rubbers from the Group of randomly copolymerized styrene-butadiene rubbers (SBR), the Butadiene rubbers (BR), synthetic polyisoprene (IR), butyl rubbers (IIR), the halogenated butyl rubbers (XIIR), the acrylate rubbers (ACM), the Ethylene-vinyl acetate copolymers (EVA) and the polyurethanes and / or their blends can be chosen.
  • SBR randomly copolymerized styrene-butadiene rubbers
  • BR Butadiene rubbers
  • IR butadiene rubbers
  • IIR butyl rubber
  • the rubbers can be used to improve processability thermoplastic elastomers with a weight fraction of 10 to 50 wt .-% added are based on the total elastomer content.
  • SIS Styrene-isoprene-styrene
  • SBS styrene-butadiene-styrene
  • Tackifying resins are, without exception, all known and in the literature described adhesive resins can be used. These are representative Rosins, their disproportionated, hydrogenated, polymerized, esterified derivatives and salts, the aliphatic and aromatic hydrocarbon resins, terpene resins and terpene phenolic resins. Any combination of these and other resins can can be used to suit the properties of the resulting adhesive adjust. On the representation of the state of knowledge in the "Handbook of Pressure Sensitive Adhesive Technology "by Donatas Satas (van Nostrand, 1989) expressly pointed out.
  • Hydrocarbon resin is a collective name for thermoplastic, colorless to intensely brown colored polymers with a molecular weight of generally ⁇ 2000.
  • coal tar resins are the coumarone indene resins.
  • hydrocarbon resins are made by polymerizing the raw materials isolatable unsaturated compounds obtained.
  • the hydrocarbon resins also include polymers with a correspondingly low molar mass which are accessible by polymerizing monomers such as styrene or by polycondensation (certain formaldehyde resins).
  • Hydrocarbon resins are products with a softening range that varies within a wide range from ⁇ 0 ° C (liquid hydrocarbon resins at 20 ° C) to> 200 ° C and a density of approx. 0.9 to 1.2 g / cm 3 .
  • Rosin is a natural resin that is made from the raw resin of Conifers is obtained. There are three types of rosin: Balsam resin as Distillation residue of turpentine oil, root resin as an extract from coniferous rhizomes and tall resin, the distillation residue from tall oil. The quantitative Balsam resin is of the greatest importance.
  • Rosin is a brittle, transparent product from red to brown in color. It is insoluble in water, but soluble in many organic solvents such as (chlorinated) aliphatic and aromatic hydrocarbons, esters, ethers and ketones as well in vegetable and mineral oils.
  • the softening point of rosin is in the Range from approx. 70 to 80 ° C.
  • Rosin is a mixture of approx. 90% resin acids and 10% neutral substances (fatty acid esters, terpene alcohols and hydrocarbons).
  • the most important rosin resin acids are unsaturated carboxylic acids of the gross formula C20H30O2, abietic, neoabietic, levopimaric, pimaric, isopimaric and palustric acids, in addition to hydrogenated and dehydrated abietic acid.
  • the proportions of these acids vary depending on the provenance of the rosin.
  • plasticizing substances can be used as plasticizers become. These include the paraffinic and naphthenic oils, (functionalized) oligomers such as oligobutadienes, isoprene, liquid nitrile rubbers, liquid terpene resins, vegetable and animal oils and fats, phthalates, functionalized Acrylates.
  • thermally activatable chemical crosslinkers such as accelerated sulfur or sulfur donor systems, isocyanate systems, reactive melamine, formaldehyde and (optionally halogenated) phenol-formaldehyde resins or reactive phenolic resin or diisocyanate crosslinking systems with the corresponding activators are epoxidized polyesters - and acrylate resins and their combinations can be used.
  • the crosslinkers are preferably activated at temperatures above 50 ° C., in particular at temperatures from 100 ° C. to 160 ° C., very particularly preferably at temperatures from 110 ° C. to 140 ° C.
  • the crosslinkers can also be thermally excited by IR rays or high-energy alternating fields.
  • the label according to the invention contains all possible uses open. It is particularly advantageous to use the label on packaging such as tubes, Crucibles, cans or bottles made of glass, plastic or metal, especially in the Design with silver printing and relief lacquer. The label then looks very attractive and affects potential customers if it is placed on the packaging accordingly is very attractive.
  • the label according to the invention can be very much in particular by the following methods manufacture advantageously.
  • the composite is laminated with the help of a turning cross.
  • corona pretreatment is usually performed on both sides Film surfaces.
  • the printing material web is shown in the printing units D1 to D (x), here in the Printing units D1 to D3, with the desired imprint.
  • FIG. 2 An alternative production method is shown in FIG. 2, which provides the coating the self-adhesive in the flexo process.
  • the laminated web is turned, see above that the top of the printing material web in the printing units D (x + 1) to D (z), here shown in the printing units D4 to D8, can be printed.
  • the individual labels are punched in the Rotostanze RS and then the grille take-off G. Then the label web EB rolled up.
  • the pressure sensitive adhesive is applied indirectly, i.e. first to the backing material, preferably a silicone film, coated, but this is not a limitation of this invention should represent, since a self-adhesive coating on the printed web in front of the Laminating with the carrier material is also feasible.
  • the first printing material web is in the printing units D1 to D (x), shown here in the Printing units D1 to D3, with the desired imprint (Liner pressure).
  • the second substrate web and the first substrate web are in the Kaschierstation K laminated together so that the adhesive the pressure on the covered first carrier layer.
  • Figure 5 represents the Coating of the self-adhesive in the hotmelt process.
  • the laminated web is turned, see above that the top of the first printing material web in the printing units D (x + 1) to D (z), here shown in the printing units D4 to D8, can be printed.
  • the individual labels are punched in the Rotostanze RS and then the grille deduction G.
  • the label web EB is then rolled up.
  • the label according to the invention has elements that can be produced by the frontal printing process and then further elements that are produced by the counter or interlayer printing.
  • the label combines the advantages of both printing process variants. Certain printing inks are on the inside (interlayer printing or counter printing), in combination with printing inks on the top (frontal printing).
  • interlayer printing is used, for example, for one to achieve good, inexpensive silver printing, in frontal printing one achieves a better one Relief effect (usually screen printing). It is also an advantage of reverse printing that the printing inks are protected against media (filling goods, chemicals, etc.).
  • silicone film from Siliconatura film thickness 30 ⁇ m PET (Silphan S 30 M74F) (or silicone paper)
  • Acrylic hotmelt PSA for producing a self-adhesive material for example Acronal DS 3458, from BASF
  • the adhesive is applied over the entire surface using a slot die (for example Nordson BC 40, rotating rod principle) and UV-crosslinked.
  • FIG. 7 shows an inventive label with the following layers: 11 Surface print 1 Printing material 60 ⁇ m PP film 12 counterprint 2 Pressure sensitive adhesive 3 Silicone film / -paper
  • suitable laminating adhesive for laminating the film with the self-adhesive material, for example UV flexographic laminating adhesive (Akzo, UV 9402), hot-melt laminating adhesive, Pressure sensitive adhesives, hot melt pressure sensitive adhesive, 2-component adhesive or similar
  • FIG. 8 shows an inventive label with the following layers: 11 Surface print 5 1. Printing material web 30 ⁇ m PP film 12 counterprint 4 laminating adhesive 1 2. Printing material web 30 ⁇ m PP film (basic label) 2 Pressure sensitive adhesive 3 Silicone film / -paper

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Making Paper Articles (AREA)
EP20020025966 2001-12-21 2002-11-21 Etiquette auto-adhesive, méthode de fabrication et son utilisation Revoked EP1321919B1 (fr)

Priority Applications (1)

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EP07108135A EP1818893B1 (fr) 2001-12-21 2002-11-21 Etiquette auto-adhésive, méthode de fabrication et son utilisation

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DE10163589A DE10163589A1 (de) 2001-12-21 2001-12-21 Selbstklebend ausgerüstete Etiketten, Verfahren zur Herstellung dieser sowie ihre Verwendung
DE10163589 2001-12-21

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EP1321919A2 true EP1321919A2 (fr) 2003-06-25
EP1321919A3 EP1321919A3 (fr) 2005-10-12
EP1321919B1 EP1321919B1 (fr) 2007-08-22

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EP (2) EP1818893B1 (fr)
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CN104599590A (zh) * 2014-12-31 2015-05-06 广东天元印刷有限公司 一种不干胶印刷的亮银不干胶标签及其制备方法
CN114641257A (zh) * 2019-09-16 2022-06-17 阿莱恩技术有限公司 持久的装饰性标记载体

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WO2009092640A1 (fr) * 2008-01-22 2009-07-30 Tesa Se Film support, notamment pour bande adhésive et utilisation correspondante
CN101978010A (zh) * 2008-01-22 2011-02-16 德莎欧洲公司 载体膜,特别是用于胶带的载体膜,及其用途
DE102011076552A1 (de) 2011-05-26 2012-11-29 Tesa Se Verfahren zum Verspenden von auf einem Trägerband vorhandenen Etiketten und Verfahren zur Herstellung von mit Etiketten ausgerüsteten Trägerbändern
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CN104599590A (zh) * 2014-12-31 2015-05-06 广东天元印刷有限公司 一种不干胶印刷的亮银不干胶标签及其制备方法
CN114641257A (zh) * 2019-09-16 2022-06-17 阿莱恩技术有限公司 持久的装饰性标记载体

Also Published As

Publication number Publication date
US20060263595A1 (en) 2006-11-23
EP1321919A3 (fr) 2005-10-12
ATE495518T1 (de) 2011-01-15
US20030148055A1 (en) 2003-08-07
ATE371244T1 (de) 2007-09-15
EP1321919B1 (fr) 2007-08-22
DE50214865D1 (de) 2011-02-24
EP1818893A1 (fr) 2007-08-15
DE50210748D1 (de) 2007-10-04
EP1818893B1 (fr) 2011-01-12
US7250191B2 (en) 2007-07-31
DE10163589A1 (de) 2003-08-07

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