WO2023244936A1 - Superposition de films orientés biaxialement transparents pour marquer des étiquettes métalliques revêtues - Google Patents

Superposition de films orientés biaxialement transparents pour marquer des étiquettes métalliques revêtues Download PDF

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Publication number
WO2023244936A1
WO2023244936A1 PCT/US2023/068161 US2023068161W WO2023244936A1 WO 2023244936 A1 WO2023244936 A1 WO 2023244936A1 US 2023068161 W US2023068161 W US 2023068161W WO 2023244936 A1 WO2023244936 A1 WO 2023244936A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal
tag
tags
coating
laser
Prior art date
Application number
PCT/US2023/068161
Other languages
English (en)
Inventor
Edwards S. O'NEAL
G. David HUDELSON
Original Assignee
Infosight Corporation
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 Infosight Corporation filed Critical Infosight Corporation
Publication of WO2023244936A1 publication Critical patent/WO2023244936A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373—Metallic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/475—Cutting cards
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object

Definitions

  • the present disclosure relates to metal identification tags or other surfaces and more particularly to their marking.
  • the use of a laser to mark surfaces coated with silicone resins has been taught in US 5,855,969. This method is well known and useful in the creation of identification and tracking methods for use in harsh environments that often include high temperatures.
  • the usefulness of identification indicia produced with these coatings has been limited in certain areas, such as described in U.S. Publication No. 2015/017 0551 , which teaches a method for protecting the silicone-coated surface from obscuration by paint by providing a cover laminate after the identification indicia have been applied to a laser reactive coating.
  • US 6,764,016 teaches the use of a temporary film to protect indentification indicia from chemical attack during galvanizing pre-treatment.
  • the silicone-coated surface to be marked takes the form of a connected series of metal tags joined by a breakable metal junction between the tags
  • the protective over-laminate takes the form of a continuous film, such as a tearresistant adhesive tape, covering more than one tag
  • the presence of the film at the breakable metal junction can impede the ability to create a clean separation when breaking the connected series of metal tags into individual metal tags to be used in their intended application.
  • EP0732678 teaches a laser-permeable film covering for a plastic base layer, but does not create a solution for silicone coatings requiring higher laser power capable of melting or ignititing plastics.
  • U.S. Patent No. 5,340,628 teaches a transparent top sheet to prevent release of particles from a thermally sensitive base sheet, but does not teach a solution for higher powered lasers capable of burning through the base sheet. Neither teaching addresses the requirement to cleanly separate individually marked tags or labels from a continuous strip.
  • Protective films also are useful in shielding rough or porous surfaces, such as silicone-coated metal identification tags, from the accumulation of dirt and other environmental pollutants, extending their useful life before cleaning or possible replacement is required.
  • Protective films sufficiently resistent to UV radiation have been shown to be effective substitutes for directly applied liquid protectants, on laser-markable surfaces such as, for example, anodized micro- pore aluminum tags that are prone to sun-induced UV fading and environmental degradation.
  • laser-markable surfaces such as, for example, anodized micro- pore aluminum tags that are prone to sun-induced UV fading and environmental degradation.
  • US 6,451 ,421 which discloses a durable abrasion-resistant asset tag, but which requires additional protection after laser marking for outdoor applications.
  • such protective films could only be applied after the completion of laser marking, requiring an undesired additional operation step typically performed by the end-user rather than the tag manufacturer.
  • Metal identification tags are coated with a silicone resin-based coating engineered to produce a color change under the action of a laser beam of sufficient power at a specific wavelength. Although commonly white, the silicone-based coating may optionally be tinted or colored with suitable pigments.
  • a variety of metal tag aspect ratios are suitable for use in the present invention, including a single continuous unbroken strip of multiple tags joined by a thin breakable metal neck or junction separating each tag from the next, or said continuous strip without such junctions from which tags may be created through a slitting, cutting, shearing or punching action.
  • a protective film or tape semi-transparent to the laser at the specific wavelength suitable for marking is applied over the coated metal tag, advantageously by the tag manufacturer before the tags are packaged, for example in coils or stacks, for efficient shipping to and handling by a user.
  • the protective film may be colorless or it may be tinted with a suitable colorant.
  • Identification indicia then, are created on the silicone-based surface by action of the laser of specific wavelength at which the film is semi-transparent, through the film, at a power level or output power (watts) sufficient for producing the desired color change on the underneath layer, but less than the level at which the semi-transparent film would melt, burn, ignite, or otherwise be disrupted or compromised to or beyond the point of failure.
  • all markings are produced after the semi-transparent protective film has been applied to the metal identification tag, but those skilled in the art will recognize that certain preliminary markings produced by lasers or other suitable methods may be created on the silicone-based surface prior to application of the laminate, without affecting the utility of the disclosed inventive process.
  • Common methods for controlling the power of the laser beam of specific wavelength, on a unit-area and/or unit-time basis include, but are not limited to, controlling the incident laser spot size through focusing and defocusing techniques; and/or controlling the pulse duty cycle of a pulsed laser beam; and/or changing the traversing rate of the laser beam across the surface to be marked.
  • the effective power of the laser beam also may be controlled by changing the method of pattern generation between continuously drawn arcs, also referred to as x-y or always-on vector marking, and raster scanning, also referred to as matrix or on-off marking, as taught in US 5,855,969.
  • the laser beam of specific wavelength may be directed to the interior of the open feature to partially or totally disrupt the protective film, thus facilitating the insertion of the attachment device through the open feature.
  • the lack of the metal or other suitably heat conductive substrate under the protective film in interior of the open feature is often sufficient to enable selective disruption of the film without further control of the power of the laser beam.
  • the power of the laser beam of specific wavelength may be increased sufficiently to partially or totally disrupt the protective film along the area of the tag defined by the breakable junction, thus facilitating the subsequent separation of individual tags from the continuous series of tags by breaking the breakable junction.
  • lasers of other wavelengths in combination with films sufficiently transparent to lasers of the chosen wavelength, may be used to advantage in accordance with the present disclosure, as may laser-markable coatings other than the disclosed silicone coatings.
  • Rolls of labels or tags such as roll 10 in FIG. 7, advantageously of rigid metal construction, find advantage in the commercial market.
  • Adjacent tags have perforations or scores forming a thin, breakable neck or junction, 9, therebetween for easy separation of tags by tearing or bending at the junction, 9.
  • labels or tags may also contain one or more openings, such as hole, 11 , so each individual tag can be hung, if necessary, desireable, and/or convenient.
  • Protective film, 1 advantageously of BOPP and further advantageously in continuous form, is applied to metal surface 3 of roll, 10. Later disruption of the protective film, 1 , by laser beam, 6, along junction, 9, restores the utility of original breakable junction between tags.
  • a plurality of tags of the same or different dimensions may be placed with their backsides in contact with the top side of an adhesive, 18, such as a pressure sensitive adhesive (PSA), with the bottom side of the adhesive in contact with a release liner (not shown).
  • PSA pressure sensitive adhesive
  • Protective film, 1 then is overlaid on top of the assembly of tags and adhesive, permitting, for example, the assmbly to be rolled into a coil for ease of handling.
  • Laser beam, 6, then may be used to cut around the circumference of a tag with a power level suitable for cutting through the protective film overlay, 1 , and adhesive, 18, without cutting through the release liner (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une pluralité d'étiquettes métalliques ayant une liaison métallique frangible entre chaque étiquette métallique adjacente. Chaque étiquette a une face avant et une face arrière. Un revêtement pouvant être marqué au laser recouvre les faces avant de l'étiquette. Un revêtement recouvre le revêtement pouvant être marqué au laser appliqué sur les faces avant de l'étiquette. Le revêtement superposé n'est pas totalement transparent à un faisceau laser efficace pour marquer le revêtement pouvant être marqué au laser. Le revêtement superposé est capable de maintenir chaque étiquette adjacente ensemble en présence de liaisons métalliques rompues entre chaque étiquette métallique adjacente pour l'enroulement de la pluralité d'étiquettes métalliques ou l'impression au laser du revêtement pouvant être marqué au laser à travers le revêtement superposé. Le revêtement superposé présente une transmissivité supérieure ou égale à 95 %. La face arrière de l'étiquette métallique peut être revêtue d'un adhésif, puis d'un revêtement antiadhésif qui est placé sur la face arrière revêtue d'adhésif des faces arrière de l'étiquette.
PCT/US2023/068161 2022-06-15 2023-06-09 Superposition de films orientés biaxialement transparents pour marquer des étiquettes métalliques revêtues WO2023244936A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202263366414P 2022-06-15 2022-06-15
US63/366,414 2022-06-15
US202318331277A 2023-06-08 2023-06-08
US18/331,277 2023-06-08

Publications (1)

Publication Number Publication Date
WO2023244936A1 true WO2023244936A1 (fr) 2023-12-21

Family

ID=89191987

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2023/068161 WO2023244936A1 (fr) 2022-06-15 2023-06-09 Superposition de films orientés biaxialement transparents pour marquer des étiquettes métalliques revêtues

Country Status (1)

Country Link
WO (1) WO2023244936A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007046089A2 (fr) * 2005-10-16 2007-04-26 A.C.S. Advanced Coding Systems Ltd. Étiquette d'authentification de produit
US20100108874A1 (en) * 2007-05-23 2010-05-06 Loessil Fariborz Martin Zahedi Film element for detecting authenticity
US20100258636A1 (en) * 2001-12-24 2010-10-14 George Theodossiou Laser Etched Security Features for Identification Documents and Methods of Making Same
US20140285612A1 (en) * 2008-11-04 2014-09-25 Agfa-Gevaert N.V. Method of Producing Security Document

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100258636A1 (en) * 2001-12-24 2010-10-14 George Theodossiou Laser Etched Security Features for Identification Documents and Methods of Making Same
WO2007046089A2 (fr) * 2005-10-16 2007-04-26 A.C.S. Advanced Coding Systems Ltd. Étiquette d'authentification de produit
US20100108874A1 (en) * 2007-05-23 2010-05-06 Loessil Fariborz Martin Zahedi Film element for detecting authenticity
US20140285612A1 (en) * 2008-11-04 2014-09-25 Agfa-Gevaert N.V. Method of Producing Security Document

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