WO1997023356A1 - Surface restructuring process and imaged media produced therefrom - Google Patents
Surface restructuring process and imaged media produced therefrom Download PDFInfo
- Publication number
- WO1997023356A1 WO1997023356A1 PCT/US1996/019022 US9619022W WO9723356A1 WO 1997023356 A1 WO1997023356 A1 WO 1997023356A1 US 9619022 W US9619022 W US 9619022W WO 9723356 A1 WO9723356 A1 WO 9723356A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- restructuring
- ofthe
- imaged
- image
- substrate
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
-
- 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
- B44C1/24—Pressing or stamping ornamental designs on surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
Definitions
- This invention relates to a process of restructuring a surface of an imaged substrate and the imaged media produced therefrom.
- Graphic images can be created on films, paper, and other media by a variety of well-known techniques including, but not limited to electrostatic imaging and, inkjet imaging. Such images, however, typically exhibit a rough or low gloss finish.
- imaged media having a generally low gloss finish is the subject of U.S. Pat. No. 5,114,520 (Wang et al.).
- both the imaged media and the ink or pigment used to create the graphic image comprise thermoplastic materials.
- additional layers are often provided over the image in order to provide desired surface characteristics.
- Clear polymeric films are often used as supplemental layers to provide decorative effects (e.g., a high gloss finish), abrasion resistance, and/or ultraviolet light protection.
- the use of an additional layer increases the cost ofthe imaged media. In applications in which the purpose ofthe additional layer is primarily for decorative effect, such additional costs can render the use of a supplemental layer in connection with an imaged medium uneconomical in a competitive business environment.
- the present invention provides a method of restructuring a surface of an imaged medium without adversely affecting the image. More particularly, the invention relates to a method for restructuring a surface of an imaged substrate, including the steps of providing a substrate having an image on at least one surface, the image provided by at least one thermoplastic, providing a restructuring agent such as a substantially planar structure having an image contacting surface, contacting the imaged surface ofthe substrate with the image contacting surface of the restructuring agent under conditions of elevated temperature, pressure or a combination of temperature and pressure, and separating the restructuring agent from the imaged surface.
- a restructuring agent such as a substantially planar structure having an image contacting surface
- the term "restructuring” is intended to mean any process involving embossing, smoothing, texturing, patterning, impressing, engraving, or otherwise altering the surface of an imaged medium, typically, although not exclusively by the application of pressure, heat, or a combination thereof.
- a method of changing the reflective optical density of an image on a surface of an imaged substrate without adding compositions to the image is achieved by restructuring the surface to render it smoother.
- the method is intended to be carried out in a manner that does not adversely affect the image.
- Another aspect ofthe invention relates to a method for improving adhesion of a clear film to a surface of a substrate, bearing an image comprising the step of restructuring the surface ofthe substrate without adversely affecting the image.
- One feature ofthe present invention is that the method of restructuring the surface ofthe imaged substrate provides an altered surface according to a desired decorative effect.
- the imaged media can have an increased reflective optical density or a decreased reflective optical density depending on the desired decorative effect.
- the reflective optical density preferably is increased with a restructuring ofthe surface ofthe imaged media by smoothing the surface on which the image resides. The smoothing decreases surface aberrations that may reduce reflection ofthe image by incident light.
- the decorative effect can be controlled by a pattern on the surface of a restructuring agent used in the restructuring process.
- the decorative effect can also provide an improved surface that provides a higher gloss finish for the imaged media.
- Another feature ofthe invention is the ability to control optical properties ofthe surface ofthe imaged media by improving reflective density values. This results from a lessening of surface variations which can improve the regularity of light reflected from the surface.
- One advantage ofthe present invention is that of an added surface characteristic can be provided to the imaged medium without providing an additional material layer. This advantage provides an added benefit to the final imaged product without added materials cost.
- Another advantage is the ability to integrate the embossing process into a conventional electronic graphics system such as that disclosed in U.S. Pat. No. 5,114,520 (Wang et al.). Other features and advantages ofthe invention will become apparent as embodiments ofthe invention are described with reference to the following drawings.
- Fig. 1 is a scanning electron micrograph showing the surface of a substrate prior to imaging and restructuring.
- Fig. 2 is a scanning electron micrograph showing the surface of an imaged substrate after imaging, but prior to restructuring.
- Fig. 3 is a scanning electron micrograph showing the surface of an imaged substrate after both imaging and restructuring.
- the restructuring process ofthe present invention may be applied to any of a variety of commercially available graphic imaging systems, techniques and materials.
- graphic imaging systems is the ScotchprintTM Electronic Graphic System commercially available from 3M Company of St. Paul, MN.
- inventive restructuring method may be applied to a wide variety of methods of printing graphic images on media including, but not limited to electrostatic imaging, inkjet imaging, screenprinting, and the like.
- Nonlimiting examples of media used in the printing of graphics on media include paper; polymeric films (e.g., vinyl or polyester); and the like.
- Nonlimiting examples of inks used to print images on media include toners commercially available from a variety of suppliers including ScotchprintTM toners from 3M Company, American Inkjet Printing Fluid commercially available from American Ink Jet Corporation of Billerica, MA.
- the restructuring equipment useful in the method ofthe present invention includes a roll laminator or another device that can provide pressure heat or a combination thereof.
- the restructuring equipment further includes a restructuring agent, preferably in the form of a plate, roll, sheet or three-dimensional master that has a restructuring effect (e.g., a smoothing effect in one aspect, or a texture, contour, or pattern in another aspect) that is used to generate the desired decorative effect on the imaged media by restructuring the surface ofthe imaged substrate.
- a restructuring effect e.g., a smoothing effect in one aspect, or a texture, contour, or pattern in another aspect
- the restructuring agent is a polymeric film sheet or web. If the restructured surface is to be smoothed, the film may be a smooth, high tensile strength film. The film may be provided with a silicone or other surface-energy reducing medium which allows the restructuring agent to be immediately removed from the restructured surface and reused.
- the roll laminator and restructuring agent can be combined to provide the desired decorative effect by providing the characteristics ofthe restructuring agent directly on at least one roll ofthe roll laminator.
- Non-limiting examples of commercially available roll laminators include the Pro-Tech Orca III brand laminator commercially available from Pro-Tech Engineering, Inc. of Madison, WI or a 3MTM Model 9540 laminator commercially available from 3M Company.
- Non-limiting examples of restructuring agents include polymeric sheeting such as Mylar brand film from Du Pont or Melinex brand film from ICI Americas. Such restructuring agents may be used to smooth the surface of imaged media.
- restructuring agents include textured or patterned sheeting, either as a separate restructuring agent, or incorporated directly onto a laminator roll.
- the restructuring method uses a roll laminator and restructuring agent during the preparation of imaged media. After the image is provided on the media according to conventional techniques, the restructuring method can be carried out. This may be either prior or subsequent to completion of the final imaged graphic product.
- the restructuring agent is selected to provide desired smoothing or embossing effect on the imaged substrate by placing it in contact with the surface of the imaged substrate in an environment of elevated heat, pressure or both.
- an optional protective cover sheet can be placed between the restructuring agent and the roll laminator to protect the laminator rolls.
- the combination of imaged substrate, restructuring agent, and optional cover sheet is fed through the roll laminator.
- the cover sheet if present, is removed, and then the restructuring agent is removed.
- the restructured surface ofthe imaged substrate may then be processed further in any conventional manner (such as described in U.S. Pat. No. 5,114,520) for packaging, storage, and later usage.
- the restructuring process can use a web speed of from about 0.1 to about 120 inches per second approx. (0.25 to 300 cm/sec), depending to the ability ofthe restructuring agent to restructure the imaged substrate under acceptable processing conditions, preferably from about 0.5 to about 3 inches per second (approx. 1.3 to 7.5 cm/sec) to assure even restructuring, and most preferably from about 1 to about 2 inches per second (approx. 2.5 to 5.1 cm/sec).
- the restructuring process can use a nip pressure in the roll laminator ranging from about 30 lbs/in 2 to about 70 lbs/in 2 (2.07xl0 5 to 4.82xl0 5 N/m 2 ) to provide sufficient pressure for the restructuring agent to cause the change in the surface ofthe imaged substrate.
- the nip pressure is preferably maintained, from about 40 lbs/in 2 to about 60 lbs/in 2 (2.76xl0 5 to 4.13xl0 5 N/m 2 ) to assure an even restructuring ofthe imaged substrate, and most preferably is maintained about 60 lbs/in 2 (4.13xl0 5 N/m 2 ).
- the restructuring process can also use the application of heat, either alone or in combination with pressure application, during the restructuring.
- the restructuring agent or the roll laminator drums need to be heated, either prior to or while in contact with, the surface to be restructured.
- the temperature ofthe restructuring agent can range from about 30 to about 200 °C depending on the polymeric composition ofthe imaged substrate, the composition ofthe toners or inks used to create the image, and the composition ofthe restructuring agent.
- the temperature ofthe restructuring agent is preferably maintained between about 50°C and about 175°C to more effectively smooth the roughened surface of a low gloss surface. Most preferably, the temperature is maintained between about 65°C and about 150°C.
- the characteristics of restructuring agent can vary greatly according to the desired surface effect on the final imaged substrate.
- the nature ofthe restructuring effect as an embossing effect can be geometrical, fractal, symbolic, or ornamental depending on the pattern appearing on the embossing agent.
- patterns include diamond shapes, hammer tones, spirals, and other decorative effects.
- the nature ofthe restructuring effect as a smoothing effect can create a high gloss appearance due to a change in reflective optical density by smoothing roughness ofthe surface on which the image resides.
- a smooth polymeric sheet can be used as the restructuring agent, and this can be applied to the imaged surface under conditions of elevated pressure and temperature to smooth the imaged surface and increase its reflective optical density.
- the resulting surface is generally free of any raised pattern or other topographical features.
- the interposition ofthe restructuring process in the production of the imaged media does not consume additional raw materials or add additional layers to the final imaged media.
- the restructuring agent may be reused repeatedly to reduce waste and material expense, while assuring reproducibility ofthe desired effect on large quantities ofthe media.
- Use ofthe restructuring method ofthe present invention can provide graphic image media having gloss measurements ranging from about 1 to about 200 according to the test described below under Gloss Measurement.
- Figs. 1-3 show a direct comparison ofthe same vinyl substrate before imaging (Fig. 1), after imaging (Fig. 2), and after the use ofthe inventive restructuring method (Fig. 3).
- the imaged substrate shown in Fig. 2 has a gloss measurement of about 10-15.
- the imaged substrate shown in Fig. 3 has a gloss measurement of about 92-120.
- Use ofthe restructuring method ofthe present invention can provide an imaged medium having an improved reflective optical densities as well. For example, in the samples shown in FIGS.
- the unrestructured yellow sample had a measured optical density of 0.94 and a restructured optical density of 1.05. This represents an improvement of approximately 12 %.
- the unrestructured cyan sample had a measured optical density of 1.43 and a restructured optical density of 1.85. This represents an improvement of approximately 29 %.
- the unrestructured magenta sample had a measured optical density of 1.39 and a restructured optical density of 1.63. This represents an improvement of approximately 17 %.
- the restructuring method of the present invention provides improved gloss and reflective optical density measurements. While not being limited to a particular theory, it is believed that surface aberrations are restructured by application of heat, pressure, or a combination thereof into a surface that is more capable of reflecting incident light, all without the image being distorted during the restructuring process. While embodiments ofthe invention have been identified, the following examples provide further demonstration ofthe features and advantages ofthe present invention.
- Transfer Materials 8601 media ScotchprintTM transfer material commercially available from 3 M Company of St. Paul, MN (hereinafter "3M")
- Substrates 8610 media ScotchprintTM Electronic Imaging paper commercially available from 3M
- 8612 media ScotchprintTM Electronic Imaging Exterior Poster paper commercially available from 3M 8620 media— ScotchprintTM vinyl receptor film commercially available from 3M 8640 media— ScotchprintTM vinyl receptor film commercially available from 3M 8641 media— ScotchprintTM vinyl receptor film commercially available from 3M Clear Films (used in Comparative Examples)
- 8910 media ScotchprintTM film commercially available from 3M 8930 media— ScotchprintTM film commercially available from 3M
- Printer 9512 printer ScotchprintTM electrostatic printer commercially available from 3M
- Densitometer X-Rite 418 densitometer commercially available from X-Rite, Inc., Grandville, Michigan.
- 3M ScotchTM brand 610 tape is applied to the sample. A 3M squeegee is used to apply to the tape with 3 strokes. The tape is pulled off in a single motion, slowly at an angle of 180°.
- the 9512 printer was used with toners commercially available from 3M to generate an image on the transfer material. Then the image was transferred to the substrate at standard transfer conditions of 205 °F, 60 psi, and 1.5 inches/sec (96 °C, 4.13xl0 5 N/m 2 , and 3.81 cm sec)
- samples having a layer of 8910 or 8930 clear film exhibit generally higher gloss and optical density values than samples lacking such films.
- Table 2 a variety of film structures are compared.
- the samples are provided with a layer of 8910 film, a layer of 8930 film, or restructured. Samples lacking the additional film or restructuring are included as controls.
- the value "R" in the clear column indicates that the sample was subject to the inventive restructuring process.
- Restructuring was carried out using a 3M SCOTCHPRINTTM 9540TM Laminator using cylinders having a diameter of between 4 and 6 inches (10.2-15.2 cm). The laminator was run at a temperature of approximately 205 °F, a speed of approximately 1.5 inches/second, and a pressure set point of approximately 60 psi.
- the scanning electron micrographs of Figs. 1, 2, and 3 show an imaging substrate surface prior to imaging and restructuring, after imaging and prior to restructuring, and after imaging and after restructuring, respectively.
- the restructuring shown in Fig. 3 does provide significant smoothing, although some debris 10 (resulting in the depression seen in the center of Fig. 3) can affect the consistency of restructuring.
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- Laminated Bodies (AREA)
- Printing Methods (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96941502A EP0868310A1 (en) | 1995-12-22 | 1996-11-26 | Surface restructuring process and imaged media produced therefrom |
AU10626/97A AU1062697A (en) | 1995-12-22 | 1996-11-26 | Surface restructuring process and imaged media produced therefrom |
JP9523648A JP2000502299A (en) | 1995-12-22 | 1996-11-26 | Surface reconstruction method and imaged media produced therefrom |
KR1019980704615A KR19990072217A (en) | 1995-12-22 | 1996-11-26 | Surface reconstruction method and image media generated by this |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57741795A | 1995-12-22 | 1995-12-22 | |
US08/577,417 | 1995-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997023356A1 true WO1997023356A1 (en) | 1997-07-03 |
Family
ID=24308633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/019022 WO1997023356A1 (en) | 1995-12-22 | 1996-11-26 | Surface restructuring process and imaged media produced therefrom |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0868310A1 (en) |
JP (1) | JP2000502299A (en) |
KR (1) | KR19990072217A (en) |
AU (1) | AU1062697A (en) |
CA (1) | CA2238727A1 (en) |
TW (1) | TW384262B (en) |
WO (1) | WO1997023356A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001056806A1 (en) * | 2000-02-06 | 2001-08-09 | Indigo N.V. | Method for producing high gloss printed images |
EP1273459A1 (en) * | 2000-02-06 | 2003-01-08 | Indigo N.V. | Method for producing high gloss printed images |
WO2007129355A1 (en) * | 2006-05-09 | 2007-11-15 | Scriba Nanotecnologie S.R.L. | Device and method for obtaining a substrate structured on micrometric or nanometric scale |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB917955A (en) * | 1958-08-01 | 1963-02-13 | M S Kaplan Company | Improvements in or relating to methods of coating metal sheets and forming a design on the coating |
GB1305202A (en) * | 1969-02-07 | 1973-01-31 | ||
GB1338710A (en) * | 1966-11-25 | 1973-11-28 | Ici Ltd | Method of producing a decorative sheet material |
DE2337240A1 (en) * | 1973-07-21 | 1975-04-03 | Artos Meier Windhorst Kg | Embossed plastics film varnished before embossing - gives appearance of leather with structured structured surface |
AU549677B2 (en) * | 1981-08-26 | 1986-02-06 | Armstrong-Nylex Pty. Ltd. | Heat embossing surface coverings |
EP0279671A2 (en) * | 1987-02-19 | 1988-08-24 | The Mead Corporation | Process for glossing a developer sheet and an apparatus useful therein |
EP0320973A2 (en) * | 1987-12-18 | 1989-06-21 | Sharp Kabushiki Kaisha | Image glazing device |
JPH0226788A (en) * | 1988-07-18 | 1990-01-29 | Fuji Photo Film Co Ltd | Image forming method |
JPH02122982A (en) * | 1988-11-02 | 1990-05-10 | Dainippon Printing Co Ltd | After-treatment of recorded image |
-
1996
- 1996-11-26 JP JP9523648A patent/JP2000502299A/en active Pending
- 1996-11-26 AU AU10626/97A patent/AU1062697A/en not_active Abandoned
- 1996-11-26 CA CA002238727A patent/CA2238727A1/en not_active Abandoned
- 1996-11-26 WO PCT/US1996/019022 patent/WO1997023356A1/en not_active Application Discontinuation
- 1996-11-26 EP EP96941502A patent/EP0868310A1/en not_active Withdrawn
- 1996-11-26 KR KR1019980704615A patent/KR19990072217A/en not_active Application Discontinuation
- 1996-12-03 TW TW085114880A patent/TW384262B/en active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB917955A (en) * | 1958-08-01 | 1963-02-13 | M S Kaplan Company | Improvements in or relating to methods of coating metal sheets and forming a design on the coating |
GB1338710A (en) * | 1966-11-25 | 1973-11-28 | Ici Ltd | Method of producing a decorative sheet material |
GB1305202A (en) * | 1969-02-07 | 1973-01-31 | ||
DE2337240A1 (en) * | 1973-07-21 | 1975-04-03 | Artos Meier Windhorst Kg | Embossed plastics film varnished before embossing - gives appearance of leather with structured structured surface |
AU549677B2 (en) * | 1981-08-26 | 1986-02-06 | Armstrong-Nylex Pty. Ltd. | Heat embossing surface coverings |
EP0279671A2 (en) * | 1987-02-19 | 1988-08-24 | The Mead Corporation | Process for glossing a developer sheet and an apparatus useful therein |
EP0320973A2 (en) * | 1987-12-18 | 1989-06-21 | Sharp Kabushiki Kaisha | Image glazing device |
JPH0226788A (en) * | 1988-07-18 | 1990-01-29 | Fuji Photo Film Co Ltd | Image forming method |
JPH02122982A (en) * | 1988-11-02 | 1990-05-10 | Dainippon Printing Co Ltd | After-treatment of recorded image |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 014, no. 174 (M - 0959) 5 April 1990 (1990-04-05) * |
PATENT ABSTRACTS OF JAPAN vol. 014, no. 351 (M - 1003) 30 July 1990 (1990-07-30) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001056806A1 (en) * | 2000-02-06 | 2001-08-09 | Indigo N.V. | Method for producing high gloss printed images |
EP1273459A1 (en) * | 2000-02-06 | 2003-01-08 | Indigo N.V. | Method for producing high gloss printed images |
EP1273458A1 (en) * | 2000-02-06 | 2003-01-08 | Indigo N.V. | Method for producing high gloss printed images |
US6916583B1 (en) | 2000-02-06 | 2005-07-12 | Hewlett-Packard Indigo N.V. | Method for producing high gloss printed images |
WO2007129355A1 (en) * | 2006-05-09 | 2007-11-15 | Scriba Nanotecnologie S.R.L. | Device and method for obtaining a substrate structured on micrometric or nanometric scale |
Also Published As
Publication number | Publication date |
---|---|
KR19990072217A (en) | 1999-09-27 |
EP0868310A1 (en) | 1998-10-07 |
AU1062697A (en) | 1997-07-17 |
TW384262B (en) | 2000-03-11 |
JP2000502299A (en) | 2000-02-29 |
CA2238727A1 (en) | 1997-07-03 |
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