WO2000015430A1 - Method of preparing multilayer articles having printed images visible on two opposing surfaces - Google Patents

Method of preparing multilayer articles having printed images visible on two opposing surfaces Download PDF

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Publication number
WO2000015430A1
WO2000015430A1 PCT/US1999/020688 US9920688W WO0015430A1 WO 2000015430 A1 WO2000015430 A1 WO 2000015430A1 US 9920688 W US9920688 W US 9920688W WO 0015430 A1 WO0015430 A1 WO 0015430A1
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WO
WIPO (PCT)
Prior art keywords
major surface
polymeric
printed
polymeric substrate
substrate
Prior art date
Application number
PCT/US1999/020688
Other languages
French (fr)
Other versions
WO2000015430A9 (en
Inventor
James A. Baker
Guglielmo Izzi
Eric D. Morrison
Original Assignee
Imation Corp.
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 Imation Corp. filed Critical Imation Corp.
Publication of WO2000015430A1 publication Critical patent/WO2000015430A1/en
Publication of WO2000015430A9 publication Critical patent/WO2000015430A9/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02Physical, chemical or physicochemical properties
    • B32B7/023Optical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/14Printing or colouring
    • B32B38/145Printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/008Sequential or multiple printing, e.g. on previously printed background; Mirror printing; Recto-verso printing; using a combination of different printing techniques; Printing of patterns visible in reflection and by transparency; by superposing printed artifacts
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G7/00Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0223Vinyl resin fibres
    • B32B2262/0238Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0276Polyester fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/41Opaque
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/40Properties of the layers or laminate having particular optical properties
    • B32B2307/412Transparent

Definitions

  • This invention relates to manufacturing plastic articles having printed images visible on two sides.
  • the invention features a process for preparing a printed article that includes:
  • the article may be subjected to further operations, including slitting, cutting, hole punching and drilling, foil stamping, sewing and grommeting, perforation, folding, surface texturing, and the like.
  • one of the polymeric substrates is substantially opaque prior to printing. In another preferred embodiment, one of the polymeric substrates (preferably the second substrate) is substantially transparent prior to printing. One or both substrates may be pre-printed. The process may further include laminating a major surface of a third polymeric substrate to the printed major surface of the first polymeric substrate. Preferably, the third polymeric substrate is substantially transparent prior to lamination. Alternatively, a coating (e.g., a photopolymerizable or thermally polymerizable coating) may be applied to the printed major surface of the first polymeric substrate.
  • a coating e.g., a photopolymerizable or thermally polymerizable coating
  • the printer includes an electrophotographic photoreceptor (e.g., an organophotoreceptor) and the image is created electrophotographically by:
  • the toned image may be transferred directly to the polymeric substrates or indirectly, e.g., by initially transferring the toned image to a transfer medium, e.g., rollers, belts, elastomers and thereafter transferring the toned image from the transfer medium to the polymeric substrates.
  • a transfer medium e.g., rollers, belts, elastomers
  • suitable electrophotographic toners include both dry and liquid toners, with liquid toners being preferred.
  • the liquid toner may include a film-forming polymer may have a Tg no greater than about 30°C. Alternatively, the polymer may have a Tg greater than about 30°C.
  • One suitable liquid toner includes a gel organosol dispersion featuring: (a) a carrier liquid (e.g., an aliphatic hydrocarbon carrier liquid having a Kauri- Butanol number less than 30) and (b) a (co)polymeric steric stabilizer having a molecular weight greater than or equal to 50,000 Daltons and a polydispersity less than 15 covalently bonded to a thermoplastic (co)polymeric core that is insoluble in the carrier liquid.
  • the core preferably has a Tg no greater than about 30°C.
  • the toner may further include a colorant and a charge director.
  • Each substrate may be provided in the form of a sheet or continuous web.
  • suitable materials for the first polymeric substrate include polyvinyl chloride, vinyl chloride-vinyl acetate copolymers, polyesters, polyolefins, polycarbonates, and combinations thereof.
  • microporous substrates such as that available under the trade designation TESLIN, commercially available from PPG, Inc. of Pittsburgh, PA.
  • a suitable material for the second and third polymeric substrates is polyester (e.g., polyethylene terephthalate or polyethylene naphthalate).
  • the two substrates are preferably laminated together using an adhesive.
  • the adhesive is selected such that the peel strength between the two substrates builds to at least 6 N/cm within a period of no greater than about 1 hour following lamination between a pair of lamination rollers at a line speed of about 0.2-10 inch/sec, a temperature of about 65-150°C, and a nip pressure of about 15- 110 lbs/in. 2 .
  • the invention provides a simple and effective method for preparing multilayer articles having printed images visible from two sides.
  • Fig. 1 is a schematic drawing of a continuous process according to the invention in which both polymeric substrates are in the form of discrete sheets.
  • Fig. 2 is a schematic drawing of a continuous process according to the invention in which one of the polymeric substrates is in the form of a discrete sheet and one of the substrates is in the form of a continuous web.
  • the invention features a process for preparing multilayer polymeric laminates having printed images visible from two different sides of the laminate.
  • Liquid toner-based electrophotographic printing is used to form the printed images.
  • the process preferably is a continuous process in which printing and laminating steps are performed in-line. It is also possible, however, to prepare articles in a batch process.
  • an adhesive to bond the polymeric substrates together.
  • Preferred adhesives are those which rapidly build bond strength following lamination. Nevertheless, it is also possible to prepare articles in which the substrates are laminated together without an adhesive.
  • Fig. 1 illustrates one embodiment of a continuous process in which the polymeric substrates are provided in the form of discrete sheets.
  • a plurality of core substrates 10 e.g., polyvinyl chloride core substrates
  • a plurality of transparent overlay films 12 are provided in the form of individual sheets in a separate stack.
  • Each of the overlay films includes an adhesive layer.
  • the overlay films 12 are stacked adhesive side down. Release liners or coatings may be used to separate individual films from each other within the stack. Both stacks are designed to alternately or alternatively feed individual sheets of core 10 and overlay film 12 to a printing station, as described below.
  • a latent electrophotographic image is generated using an organic photoreceptor 14 and transferred to a transfer roll 16 according to the techniques described in the aforementioned Baker et al. patent.
  • the photoreceptor may be in the form of a drum or flexible belt, with belts being preferred.
  • One sheet of core 10 is fed between transfer roll 16 and a back up roll 18 to transfer the latent image resident on transfer roll 16 onto one surface of core 10.
  • the resulting sheet features an ink-bearing, printed image 20 on one surface of core 10.
  • a sheet of overlay film 12 is likewise fed between transfer roll 16 and backup roll 18 to transfer a latent image onto one surface of overlay film 12, thereby forming a sheet featuring an ink-bearing, printed image 22 on one surface of overlay film 12.
  • Image 22 may be the same as, or different from, image 20.
  • the two printed sheets are then conveyed to the nip formed between a pair of laminating rollers 24, 26.
  • An additional polymer overlay film 28 e.g., a transparent polyester film
  • the three materials are then laminated together between rollers 24, 26 to form a multilayer article 32 having a pair of printed images 20, 22 on opposite sides of the article. Because overlay films 12 and 28 are preferably selected from transparent materials, a printed image is visible from each side of the article.
  • Lamination preferably is effected using a line speed of about 0.2-10 inch/sec, a temperature of about 65-130°C, and a nip pressure of about 15-110 lbs/in. . Following lamination, the articles may be subjected to further operations.
  • Fig. 2 shows another continuous process which is similar to the process shown in Fig. 1 except that the adhesive-coated overlay film is provided in the form of a continuous web 11 dispensed from a back-up roll 13 and continuously fed to the printing station.
  • a back-up roll 15 assists in the feeding of individual sheets of core 10 to the printing station.
  • core 10 rather than overlay film 11
  • both the core and the overlay film may be supplied in the form of continuous webs.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Printing Methods (AREA)
  • Laminated Bodies (AREA)

Abstract

A process for preparing a printed article that includes: a) forming an image using a printer on a major surface of a first polymeric substrate to create a first polymeric substrate having a printed major surface and an unprinted major surface opposite the printed major surface; b) forming an image using the same printer on a major surface of a second polymeric substrate to create a second polymeric substrate having a printed major surface and an unprinted major surface opposite the printed major surface; and c) laminating the printed major surface of the second polymeric substrate to the unprinted major surface of the first polymeric substrate to form the article.

Description

METHOD OF PREPARING MULTILAYER
ARTICLES HAVING PRINTED IMAGES
VISIBLE ON TWO OPPOSING SURFACES
Background of the Invention
This invention relates to manufacturing plastic articles having printed images visible on two sides.
There has been an interest in printing images such as photographic images onto plastic substrates. It would be particularly desirable to use liquid toner-based electrophotographic printing for this purpose because this printing technique produces high quality images. It would also be desirable to provide articles having printed images visible on two opposing surfaces.
Summary of the Invention In general, the invention features a process for preparing a printed article that includes:
(a) forming an ink-bearing image using a printer on a major surface of a first polymeric substrate to form a first polymeric substrate having a printed major surface and an unprinted major surface opposite the printed major surface; (b) forming an ink-bearing image using the same printer on a major surface of a second polymeric substrate to form a second polymeric substrate having a printed major surface and an unprinted major surface opposite the printed major surface; and
(c) laminating the printed major surface of the second polymeric substrate to the unprinted major surface of the first polymeric substrate to form the article. Following lamination, the article may be subjected to further operations, including slitting, cutting, hole punching and drilling, foil stamping, sewing and grommeting, perforation, folding, surface texturing, and the like.
In one preferred embodiment, one of the polymeric substrates (preferably the first substrate) is substantially opaque prior to printing. In another preferred embodiment, one of the polymeric substrates (preferably the second substrate) is substantially transparent prior to printing. One or both substrates may be pre-printed. The process may further include laminating a major surface of a third polymeric substrate to the printed major surface of the first polymeric substrate. Preferably, the third polymeric substrate is substantially transparent prior to lamination. Alternatively, a coating (e.g., a photopolymerizable or thermally polymerizable coating) may be applied to the printed major surface of the first polymeric substrate.
A variety of printing techniques may be used to form the image. Examples include ink jet printing, dye diffusion printing, thermal transfer printing, dye sublimation printing, liquid toner-based electrophotographic printing, and dry toner-based electrophotographic printing. Preferably, however, the printer includes an electrophotographic photoreceptor (e.g., an organophotoreceptor) and the image is created electrophotographically by:
(i) charging the surface of the photoreceptor;
(ii) imagewise exposing the charged surface of the photoreceptor to radiation to dissipate charge in selected areas and thereby form a latent image on the photoreceptor surface;
(iii) contacting the latent image with a toner to form a toned image; and
(iv) transferring the toned image to the major surfaces of the polymeric substrates. The toned image may be transferred directly to the polymeric substrates or indirectly, e.g., by initially transferring the toned image to a transfer medium, e.g., rollers, belts, elastomers and thereafter transferring the toned image from the transfer medium to the polymeric substrates.
Examples of suitable electrophotographic toners include both dry and liquid toners, with liquid toners being preferred. The liquid toner may include a film-forming polymer may have a Tg no greater than about 30°C. Alternatively, the polymer may have a Tg greater than about 30°C.
One suitable liquid toner includes a gel organosol dispersion featuring: (a) a carrier liquid (e.g., an aliphatic hydrocarbon carrier liquid having a Kauri- Butanol number less than 30) and (b) a (co)polymeric steric stabilizer having a molecular weight greater than or equal to 50,000 Daltons and a polydispersity less than 15 covalently bonded to a thermoplastic (co)polymeric core that is insoluble in the carrier liquid. The core preferably has a Tg no greater than about 30°C. The toner may further include a colorant and a charge director.
Examples of preferred liquid toners and related electrophotographic printing processes are described, e.g., in Baker et al, U.S. 5,652,282; Baker et al., U.S. 5,698,616; and Baker et al., U.S. 5,886,067. The first two patents describe gel organosol-containing liquid toners, while the third patent describes a non-gel organosol-containing liquid toner.
Additional examples of suitable liquid toners are described in Landa et al., U.S. 4,794,651; Landa et al., U.S. 4,842,974; Landa et al., U.S. 5,047,306; Landa et al, U.S. 5,047,307; Landa et al., U.S. 5,192,638; Landa et al., U.S. 5,208,130; Landa et al., U.S. 5,225,306; Landa et al., U.S. 5,264,313; Landa et al., U.S. 5,266,435; Landa et al., U.S. 5,286,593; Landa et al., U.S. 5,346,796; Landa et al., U.S. 5,407,771; and Landa, WO92/17823 published October 15, 1992 entitled "Polymer Blends. "
Each substrate may be provided in the form of a sheet or continuous web. Suitable materials for the first polymeric substrate include polyvinyl chloride, vinyl chloride-vinyl acetate copolymers, polyesters, polyolefins, polycarbonates, and combinations thereof. Also suitable are microporous substrates such as that available under the trade designation TESLIN, commercially available from PPG, Inc. of Pittsburgh, PA. A suitable material for the second and third polymeric substrates is polyester (e.g., polyethylene terephthalate or polyethylene naphthalate).
The two substrates are preferably laminated together using an adhesive. Preferably, the adhesive is selected such that the peel strength between the two substrates builds to at least 6 N/cm within a period of no greater than about 1 hour following lamination between a pair of lamination rollers at a line speed of about 0.2-10 inch/sec, a temperature of about 65-150°C, and a nip pressure of about 15- 110 lbs/in.2. The invention provides a simple and effective method for preparing multilayer articles having printed images visible from two sides.
Other features and advantages of the invention will be apparent from the following description of the preferred embodiments thereof, and from the claims.
Brief Description of the Drawings Fig. 1 is a schematic drawing of a continuous process according to the invention in which both polymeric substrates are in the form of discrete sheets. Fig. 2 is a schematic drawing of a continuous process according to the invention in which one of the polymeric substrates is in the form of a discrete sheet and one of the substrates is in the form of a continuous web.
Description of the Preferred Embodiments The invention features a process for preparing multilayer polymeric laminates having printed images visible from two different sides of the laminate. Liquid toner-based electrophotographic printing is used to form the printed images. The process preferably is a continuous process in which printing and laminating steps are performed in-line. It is also possible, however, to prepare articles in a batch process.
In the case of continuous processes, it is preferred to use an adhesive to bond the polymeric substrates together. Preferred adhesives are those which rapidly build bond strength following lamination. Nevertheless, it is also possible to prepare articles in which the substrates are laminated together without an adhesive.
Fig. 1 illustrates one embodiment of a continuous process in which the polymeric substrates are provided in the form of discrete sheets. As shown in Fig. 1, a plurality of core substrates 10 (e.g., polyvinyl chloride core substrates) are provided in the form of individual sheets arranged in a stack. A plurality of transparent overlay films 12 (e.g., polyester films) are provided in the form of individual sheets in a separate stack. Each of the overlay films includes an adhesive layer. The overlay films 12 are stacked adhesive side down. Release liners or coatings may be used to separate individual films from each other within the stack. Both stacks are designed to alternately or alternatively feed individual sheets of core 10 and overlay film 12 to a printing station, as described below.
A latent electrophotographic image is generated using an organic photoreceptor 14 and transferred to a transfer roll 16 according to the techniques described in the aforementioned Baker et al. patent. The photoreceptor may be in the form of a drum or flexible belt, with belts being preferred. One sheet of core 10 is fed between transfer roll 16 and a back up roll 18 to transfer the latent image resident on transfer roll 16 onto one surface of core 10. The resulting sheet features an ink-bearing, printed image 20 on one surface of core 10.
Next, a sheet of overlay film 12 is likewise fed between transfer roll 16 and backup roll 18 to transfer a latent image onto one surface of overlay film 12, thereby forming a sheet featuring an ink-bearing, printed image 22 on one surface of overlay film 12. Image 22 may be the same as, or different from, image 20.
The two printed sheets are then conveyed to the nip formed between a pair of laminating rollers 24, 26. An additional polymer overlay film 28 (e.g., a transparent polyester film) in the form of a continuous web stored on a roll 30 is likewise fed into the nip region. The three materials are then laminated together between rollers 24, 26 to form a multilayer article 32 having a pair of printed images 20, 22 on opposite sides of the article. Because overlay films 12 and 28 are preferably selected from transparent materials, a printed image is visible from each side of the article. Lamination preferably is effected using a line speed of about 0.2-10 inch/sec, a temperature of about 65-130°C, and a nip pressure of about 15-110 lbs/in. . Following lamination, the articles may be subjected to further operations.
Fig. 2 shows another continuous process which is similar to the process shown in Fig. 1 except that the adhesive-coated overlay film is provided in the form of a continuous web 11 dispensed from a back-up roll 13 and continuously fed to the printing station. A back-up roll 15 assists in the feeding of individual sheets of core 10 to the printing station.
It is also possible to supply core 10, rather than overlay film 11, in the form of a continuous web. Alternatively, both the core and the overlay film may be supplied in the form of continuous webs.
Other embodiments are within the following claims.

Claims

What is claimed is:
1. A process for preparing a printed article comprising:
(a) forming an ink-bearing image using an electrophotographic printer on a major surface of a first polymeric substrate to create a first polymeric substrate having a printed major surface and an unprinted major surface opposite said printed major surface;
(b) forming an ink-bearing image using said printer on a major surface of a second polymeric substrate to create a second polymeric substrate having a printed major surface and an unprinted major surface opposite said printed major surface; and
(c) laminating said printed major surface of said second polymeric substrate to said unprinted major surface of said first polymeric substrate to form said article.
2. A process according to claim 1 wherein one of said polymeric substrates is substantially opaque prior to printing and one of said polymeric substrates is substantially transparent prior to printing.
3. A process according to claims 1-2 wherein said first polymeric substrate is substantially opaque prior to printing and said second polymeric substrate is substantially transparent prior to printing.
4. A process according to claims 1-3 further comprising laminating a major surface of a third polymeric substrate to said printed major surface of said first polymeric substrate.
5. A process according to claims 1-4 further comprising applying a coating to said printed major surface of said first polymeric substrate.
6. A process according to claims 1-5 wherein said printer comprises an electrophotographic photoreceptor and said images are formed electrophotographically according to a process that comprises: (i) charging the surface of said photoreceptor;
(ii) imagewise exposing the charged surface of said photoreceptor to radiation to dissipate charge in selected areas and thereby form a latent image on said photoreceptor surface; (Hi) contacting said latent image with a toner to form a toned image; and (iv) transferring said toned image to said major surface of said polymeric substrate.
7. A process according to claim 6 wherein said toner comprises a gel organosol dispersion comprising:
(a) a carrier liquid; and
(b) a (co)polymeric steric stabilizer having a molecular weight greater than or equal to 50,000 Daltons and a polydispersity less than 15 covalently bonded to a thermoplastic (co)polymeric core that is insoluble in said carrier liquid.
8. A process according to claims 1-7 wherein at least one of said polymeric substrates comprises a polyvinyl chloride substrate and at least one of said polymeric substrates comprises a polyester substrate.
9. A process according to claims 1-7 wherein at least one of said polymeric substrates comprises a microporous substrate.
10. A process according to claims 1-9 wherein at least one of said polymeric substrates is in the form of a continuous web.
PCT/US1999/020688 1998-09-11 1999-09-09 Method of preparing multilayer articles having printed images visible on two opposing surfaces WO2000015430A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10001198P 1998-09-11 1998-09-11
US60/100,011 1998-09-11

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Cited By (2)

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WO2009056352A1 (en) * 2007-10-31 2009-05-07 Bundesdruckerei Gmbh Polymer layer composite for a secure and/or valuable document, and method for the production thereof
WO2009056351A1 (en) * 2007-10-31 2009-05-07 Bundesdruckerei Gmbh Method for producing a multilayer polymer structure having a multilayer personalization and/or individualization feature

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009056352A1 (en) * 2007-10-31 2009-05-07 Bundesdruckerei Gmbh Polymer layer composite for a secure and/or valuable document, and method for the production thereof
WO2009056351A1 (en) * 2007-10-31 2009-05-07 Bundesdruckerei Gmbh Method for producing a multilayer polymer structure having a multilayer personalization and/or individualization feature
EP2676803A1 (en) * 2007-10-31 2013-12-25 Bundesdruckerei GmbH Method for producing a polymer layer composite with multilayer personalization and/or individualisation
US10391807B2 (en) 2007-10-31 2019-08-27 Bundesdruckerei Gmbh Polymer laminate for a security and/or valuable document and method for the production thereof
EP2209653B2 (en) 2007-10-31 2021-03-17 Bundesdruckerei GmbH Polymer layer composite for a secure and/or valuable document, and method for the production thereof

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