WO2019206661A1 - Procédé de production d'un autocollant ou d'un transfert thermique modifié par laser - Google Patents

Procédé de production d'un autocollant ou d'un transfert thermique modifié par laser Download PDF

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Publication number
WO2019206661A1
WO2019206661A1 PCT/EP2019/059251 EP2019059251W WO2019206661A1 WO 2019206661 A1 WO2019206661 A1 WO 2019206661A1 EP 2019059251 W EP2019059251 W EP 2019059251W WO 2019206661 A1 WO2019206661 A1 WO 2019206661A1
Authority
WO
WIPO (PCT)
Prior art keywords
laser
layer
decal
carrier film
color
Prior art date
Application number
PCT/EP2019/059251
Other languages
German (de)
English (en)
Inventor
Christopher HETTLAGE
Lorenz Wahl
Original Assignee
bentlage - proprint GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by bentlage - proprint GmbH filed Critical bentlage - proprint GmbH
Publication of WO2019206661A1 publication Critical patent/WO2019206661A1/fr

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/12—Transfer pictures or the like, e.g. decalcomanias
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/267—Marking of plastic artifacts, e.g. with laser
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0208—Indicia
    • G09F2003/021—Indicia behind the front foil
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0208—Indicia
    • G09F2003/0211—Transfer or thermo-sensitive
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0257—Multilayer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/08—Fastening or securing by means not forming part of the material of the label itself
    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer

Definitions

  • the present invention relates to a method for producing laser-modified decal or heat transfer.
  • WO 2017/108623 A1 discloses an adhesive film in which laser-reactive pigments can be arranged.
  • an indication of a production process using these special laser-reactive pigments is not known from this document.
  • the present invention solves this problem by a method with the
  • a method according to the invention for producing a decal or heat transfer comprises the following steps: a) providing a multi-layered decal or
  • Heat transfer as an arrangement comprising at least one carrier film and a paint and / or ink layer with laser-reactive pigments;
  • the multilayer arrangement may comprise further layers.
  • these multiple layers can comprise pigments, in particular laser-active pigments. Since the layers can reduce the intensity of the incoming laser light, a
  • Discolour pigments in the subsurface layers to a lesser extent, so that the staining is less intense, even if the same pigments are used.
  • a lettering or a drawing ie a pattern of lines and lines, are applied by the laser. Also symbols e.g. Pictograms can be reproduced as a drawing.
  • the lettering includes letters u.a. also numbers.
  • an adhesive layer offers, which allows a fixation on the ground.
  • a special feature of the present method is that the laser beam is passed through the carrier film on the paint and / or ink layer.
  • Color layer or preferably by irradiation through an adhesive layer through.
  • Heat transfer only from the carrier film and possibly an optional backing paper must be separated. Alternatively, customers will be able to carry out customization by laser directly on site. As a result, secrecy, automation with software systems and / or a
  • the laser-modified decal and / or the laser-modified heat transfer is flexible in contrast to a printed circuit board and pursues a decorative goal, whereas tracks are a purely technical implementation.
  • the lettering of the decal or heat transfer is characterized by the fact that it can also be done before applying the target substrate (application background).
  • the method can thus combine the advantages of a highly productive uniform printing process such as screen printing with the advantages of individualization such as digital printing by the possibility of individualization by means of laser.
  • Advantageous embodiments of the method according to the invention are
  • a color change of the pigments can take place, wherein the number of excited pigments and thus the intensity of the color change by the laser adjustment, in particular the intensity of the laser beam and the wavelength, are adjustable.
  • This has the advantage that a light / dark graduation can be achieved analogously to a gray scale print.
  • Pigments can in particular be ink-free, so that staining on other print media is excluded. At the same time the printed image is protected.
  • the multi-layer decal or heat transfer as a multi-layered arrangement between the carrier film and the paint and / or ink layer, a release layer, preferably on silicone and / or wax base have ,
  • the carrier film during stripping is a thickness of between 75 and 130 ⁇ m particularly advantageous.
  • the laser used can advantageously be operated in the present process up to a power of up to 20 W, so that the matrix material of the paint and / or lacquer layer is not excessively damaged or even thermally decomposed upon irradiation of the pigments.
  • the paint and / or ink layer can advantageously have an adhesive layer on an opposite side of the carrier film.
  • the carrier film forms starting from the viewing direction of an observer (arrow A) of the decal the top and the adhesive layer can form the bottom.
  • the bottom can also be formed by a masking paper, which premature unintentional bonding of the adhesive layer prevented.
  • This can also be formed with a release layer, in particular of silicone or wax material.
  • the lacquer and / or color layer and / or the adhesive layer may have at least 50% by weight of a polyurethane and / or acrylate, which has proven to be comparatively insensitive to laser radiation.
  • a lacquer layer in the sense of the present invention in contrast to a color layer, has a functional character.
  • protective effects ie the use as a protective layer to protect an underlying color layer, can be realized thereby.
  • a lacquer layer is also transparent or semitransparent and controls the degree of gloss.
  • a color layer is in particular through the use of other additives the
  • the color layer may additionally comprise at least one further non-laser-reactive pigment, in particular TiO 2 , carbon black or the like, around a stronger one
  • Fig. 1 is a schematic representation of an embodiment of a
  • decal for use in a
  • Fig. 2 is a schematic representation of a laser irradiation of the decal of
  • FIG. 4 schematic representation of an alternative laser irradiation in
  • a decal in the form of a multilayer arrangement 1 comprising a carrier foil 2, a sequence of a plurality of color and / or lacquer layers 3 and 4, an adhesive layer 5 and a cover paper 6.
  • the carrier film 2 also called carrier, can be at least 50% by weight, based on the total weight of the carrier film 2, preferably formed entirely from a polyethylene terephthalate.
  • the carrier film may also consist of other materials.
  • the carrier film 2 can also be coated with a release layer 8.
  • This separating layer 8 can preferably be based on at least one silicone and / or a wax material or for the most part, in particular more than 50% by weight, based on the total weight of the separating layer.
  • the release layer may also comprise other materials.
  • the release layer 8 is arranged on the color layer 4 facing side of the release film 2.
  • the carrier film 2 is transparent or at least translucent.
  • the carrier film 2 also has a thickness of 75 to 130 pm.
  • the arrangement 1 may have an optional lacquer layer 3 adjacent to the carrier foil 2 or to the tear layer 8. This may be formed as a layer comprising at least 50% by weight, based on the total weight of the lacquer layer 3, of binders on a polyurethane and / or acrylate-based layer.
  • lacquer layer 3 may advantageously be additionally enriched with additives, such as leveling agents.
  • a preferred ink layer may comprise at least about 50% by weight, based on the total weight of the respective ink layer, of a binder.
  • the binder can be formed on polyurethane and / or acrylate-based be.
  • the color layer 4 can comprise pigments, but preferably not exclusively white pigments, particularly preferably with TiO 2, and / or additives, particularly preferably film formers.
  • the one or more paint and / or ink layers 3 and / or 4 are in particular mixed with a laser-reactive pigment 7 or a laser-reactive pigment-containing granules or powder, which can be excited by laser radiation to a permanent color change.
  • the pigment may in particular be selected from substances comprising: SnSb oxide, Sb 2 0 3, CU 3 (PO 4 ) 2 CU (0H) 2 , mica (phyllosilicate and / or mica), Fe 3 0 4 or
  • the laser-reactive portions may preferably be contained in a powder or granules and thereby be encapsulated or unencapsulated.
  • an adhesive layer 5 for fixing one or more of the aforementioned layers on a substrate 10 Adjacent to the lacquer and / or color layer, an adhesive layer 5 for fixing one or more of the aforementioned layers on a substrate 10 is provided.
  • the adhesive layer 5 may have at least 50% by weight, based on the total weight of the respective ink layer, of a polyurethane and / or acrylate, and optionally additives.
  • the adhesive layer may be permanently adhesive in the case of decals, or as particularly in the case of
  • Heat transfers can be activated by heat. This can be for example a so-called hot melt adhesive.
  • the adhesion of the adhesive layer is usually so high that a non-destructive redetachment of the decal or heat transfer is not possible.
  • a masking paper 6 may be disposed adjacent to the adhesive layer 5.
  • This paper can also optionally but not exclusively, with a
  • This release layer 9 may preferably be based on at least one silicone and / or wax material or for the most part, in particular the aforementioned silicone and / or wax material to more than 50 wt.%, Based on the total weight of the release layer have.
  • the aforementioned silicone and / or wax material may be based on at least one silicone and / or wax material or for the most part, in particular the aforementioned silicone and / or wax material to more than 50 wt.%, Based on the total weight of the release layer have.
  • the release layer 9 may preferably be based on at least one silicone and / or wax material or for the most part, in particular the aforementioned silicone and / or wax material to more than 50 wt.%, Based on the total weight of the release layer have.
  • separating layer also include other materials.
  • the release layer 9 is arranged on the adhesive layer 5 facing side of the cover 6. The release layer 9 and the cover 6 prevent unwanted
  • Each of the aforementioned layers in particular all of the aforementioned layers, may be water- or solvent-based, i. the application is carried out in a solution of water and / or a solvent.
  • the multi-layered arrangement 1 is provided with the carrier foil 2, the cover paper 6, the lacquer and / or color layer (s) 3 and / or 4 and the adhesive layer 5.
  • a laser beam 101 of a laser source 100 is passed through the transparent or translucent carrier film and excited to a color change and thus a change of the decal is generated.
  • the laser can also be directed from the back directly onto the transfer, which is shown in FIG. In Fig. 4, the introduction of the
  • the adhesive layer 5 can, as shown in Fig. 4, already applied to the paint and / or ink layer 3, 4 or only after the
  • the cause of this color change is the excitation of the laser-reactive pigments 7 or of the powder or of the granules by the laser beam 101.
  • the surrounding polymer can also be dyed indirectly.
  • the aforementioned laser-reactive pigments or pigment-containing granules absorb the laser light and enable color change. This can i.a. also include carbonation or foaming. As a rule, these phenomena occur simultaneously, with the color change of the polymer
  • the matrix surrounding the pigment e.g. the binder of the color layer or the material of which the color layer is predominantly formed is dyed. This can e.g. by rearrangement of complexes, by phase changes or the like.
  • the substrate may be, for example, a stone, glass, wood, metal or preferably plastic substrate
  • a fourth step the removal of the carrier film 2 from the paint and / or ink layers 3, 4 then takes place, wherein the decal remains on the substrate 10.
  • the modified decal or heat transfer which was individualized by laser irradiation to color patterns of the dye and / or varnish layer.
  • This decal 20 remains in the result without a carrier film on the substrate 10 to be decorated.
  • a semiconductor laser such as a YV0 4 laser or YAG laser can be preferably used.
  • the preferred one is a YV0 4 laser or YAG laser.
  • Wavelength range can be between 550 and 1070 nm.
  • the additional Z-axis for example, also for Adjust the autofocus position and / or adjust the focal distance.
  • the focal distance can be determined by a secondary laser beam, which in addition to the laser beam 101, which makes the energy input into the arrangement.
  • the paint or ink layer 3 and 4 may comprise several layers, so that when the color of the pigment a depth effect or different intense color changes are observed and thus a color gradation can be achieved or a general imaging by the pressure such as screen printing, given is.
  • the intensity of the energy input and thus the intensity of the color change can be varied.
  • so-called parameterization tests are to be carried out for each print batch.
  • the color variance can be additionally increased.
  • Fig. 1 only one color layer 4 is shown.
  • at least five, preferably at least seven, color layers 4 arranged one above the other can be provided.
  • Each of these color layers may comprise a laser-reactive pigment.
  • the decal or the heat transfer provided in step a) may in one embodiment of the invention be monochromatic, e.g. know, be educated.
  • the decal provided in step a) or the heat transfer may already have a printed layer e.g. as a color layer or decorative layer below the color and / or lacquer layer 3, 4, which with
  • the laser treatment can be pre-printed decor around a drawing or
  • Substrate 20 Decal 100 Laser

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

La présente invention concerne un procédé de production d'un autocollant comprenant les étapes suivantes : a) l'utilisation d'un agencement multicouche comportant au moins un film support et une couche de laque et/ou de peinture dotée de pigments réactifs à un rayon laser ; b) l'apposition sur la couche de laque et/ou de peinture d'une inscription et/ou d'un dessin par un faisceau laser et l'application sur un arrière-plan avant ou après l'émission dudit faisceau laser ; et c) le retrait du film support. Le faisceau laser est mené à travers le film support sur la couche de laque et/ou de peinture et/ou est mené par une face opposée au film support (2) sur la couche de laque et/ou de peinture (3, 4). La présente invention concerne en outre un autocollant.
PCT/EP2019/059251 2018-04-23 2019-04-11 Procédé de production d'un autocollant ou d'un transfert thermique modifié par laser WO2019206661A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102018109740 2018-04-23
DE102018109740.9 2018-04-23
DE102018120815.4 2018-08-27
DE102018120815.4A DE102018120815A1 (de) 2018-04-23 2018-08-27 Verfahren zum Herstellen eines laserveränderten Abziehbildes oder Hitzetransfers

Publications (1)

Publication Number Publication Date
WO2019206661A1 true WO2019206661A1 (fr) 2019-10-31

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Application Number Title Priority Date Filing Date
PCT/EP2019/059251 WO2019206661A1 (fr) 2018-04-23 2019-04-11 Procédé de production d'un autocollant ou d'un transfert thermique modifié par laser

Country Status (2)

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DE (1) DE102018120815A1 (fr)
WO (1) WO2019206661A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022201133A1 (fr) * 2021-03-26 2022-09-29 Gmerix Inc. Étiquette thermique directe et son procédé d'utilisation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220305831A1 (en) * 2021-03-29 2022-09-29 Scribe OpCo, Inc., dba BIC Graphic Digital heat transfer of an image

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10054803A1 (de) * 2000-11-04 2002-05-29 Kurz Leonhard Fa Kunststoffkörper, insbesondere massiver Kunststoffkörper oder Folie, z. B. Transferfolie oder Laminierfolie sowie Verfahren zur Herstellung eines Mehrfarbenbildes auf oder in einem solchen Kunststoffkörper
WO2003035411A2 (fr) * 2001-10-25 2003-05-01 Tesa Ag Film de transfert par laser pour etiquetage durable d'elements constitutifs
WO2003080335A1 (fr) * 2002-03-23 2003-10-02 Tesa Ag Film de transfert par laser a plusieurs couches pour le marquage durable de pieces
DE102014115910A1 (de) 2014-10-31 2016-05-04 Schreiner Group Gmbh & Co. Kg Etikett zum Beschriften mit einer zunächst verborgenen Innenbeschriftung
WO2017108623A1 (fr) 2015-12-21 2017-06-29 Tesa Se Bande de transfert dotée de signes de sécurité pour le bord latéral d'un ruban adhésif

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10054803A1 (de) * 2000-11-04 2002-05-29 Kurz Leonhard Fa Kunststoffkörper, insbesondere massiver Kunststoffkörper oder Folie, z. B. Transferfolie oder Laminierfolie sowie Verfahren zur Herstellung eines Mehrfarbenbildes auf oder in einem solchen Kunststoffkörper
WO2003035411A2 (fr) * 2001-10-25 2003-05-01 Tesa Ag Film de transfert par laser pour etiquetage durable d'elements constitutifs
WO2003080335A1 (fr) * 2002-03-23 2003-10-02 Tesa Ag Film de transfert par laser a plusieurs couches pour le marquage durable de pieces
DE102014115910A1 (de) 2014-10-31 2016-05-04 Schreiner Group Gmbh & Co. Kg Etikett zum Beschriften mit einer zunächst verborgenen Innenbeschriftung
WO2017108623A1 (fr) 2015-12-21 2017-06-29 Tesa Se Bande de transfert dotée de signes de sécurité pour le bord latéral d'un ruban adhésif

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022201133A1 (fr) * 2021-03-26 2022-09-29 Gmerix Inc. Étiquette thermique directe et son procédé d'utilisation

Also Published As

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