WO2001010640A1 - Support brillant vulcanise par uv pour materiau d'impression a jet d'encre - Google Patents

Support brillant vulcanise par uv pour materiau d'impression a jet d'encre Download PDF

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Publication number
WO2001010640A1
WO2001010640A1 PCT/US2000/020900 US0020900W WO0110640A1 WO 2001010640 A1 WO2001010640 A1 WO 2001010640A1 US 0020900 W US0020900 W US 0020900W WO 0110640 A1 WO0110640 A1 WO 0110640A1
Authority
WO
WIPO (PCT)
Prior art keywords
ink jet
support
substrate
layer
recording material
Prior art date
Application number
PCT/US2000/020900
Other languages
English (en)
Other versions
WO2001010640A8 (fr
Inventor
Alexander J. Miklasiewicz
Son T. Vo
Everett Wyman Bennett
Original Assignee
Rexam Graphics Inc.
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
Priority claimed from US09/368,158 external-priority patent/US6326415B1/en
Application filed by Rexam Graphics Inc. filed Critical Rexam Graphics Inc.
Priority to AU67522/00A priority Critical patent/AU6752200A/en
Publication of WO2001010640A1 publication Critical patent/WO2001010640A1/fr
Publication of WO2001010640A8 publication Critical patent/WO2001010640A8/fr

Links

Classifications

    • 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
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/506—Intermediate layers
    • 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
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • 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
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/508—Supports

Definitions

  • the present invention relates to an ultraviolet (UV) radiation cured, glossy support useful in ink jet recording media. More particularly, the present invention relates to a substrate having a coating comprised of a UV radiation cured, glossy coating. When subjected to corona treatment, the glossy coating in the substrate provides a support layer for aqueous ink jet receiving layers with greatly enhanced adhesion, gloss and thermal processability. The glossy coating also functions excellently with solvent borne coatings without corona treatment, providing excellent adhesion to ink jet media coatings.
  • UV ultraviolet
  • ink jet-receiving layer refers to the surface or coating on a substrate(paper or film) which receives the ink drops jetting from the printing head of an ink jet printer.
  • ink jet media are available today (i.e. , glossy, matte, canvas, etc.).
  • the "new" digital cameras can take images and download them into computers, which in turn can enhance the images and then print the image using ink jet technology on an ink jet glossy media resulting in a photographically realistic reproduction.
  • the desired color image medium must afford silver halide photographic like properties in all its characteristics.
  • the ink jet media must generally be glossy( > 60%@ 20° angle), archivable (non yellowing@3-5Yr. UV exposure), be water fast (coating does not come off after media exposed to water for 10 min.), must feel (have the hand) of a photograph, and must have excellent adhesion to the substrate.
  • an objective of the present invention is to provide a coating useful as a glossy support layer for an ink jet-receiving layer, that when applied to a high quality paper substrate will have close to identical photographic paper media properties (Whiteness, Brightness, Color-L*a*b*, Gloss, Yellowing or Fade resistance, and hand).
  • the above objective is realized by a support comprising a substrate and a UV cured resinous coating layer on the substrate, with said resinous coating layer being comprised of a tetrafunctional polyester acrylate, a difunctional acrylic ester, a UV photoinitiator and a poly ether.
  • the media comprises a smooth white latex coated paper substrate with a resinous coating layer formed on the surface of the substrate, and cured by UV radiation.
  • the glossy ink jet paper bases mainly consist of polyethylene (PE) coatings which are applied by hot melt extrusion.
  • the subsequent glossy layer is corona treated before an aqueous ink jet receiving layer is applied due to the low surface energy of the polyethylene. This results in enhanced adhesion to the aqueous ink jet receiving layer.
  • the UV cured glossy layer composition of the present invention is unique because only UV radiation can successfully cure the system and exposure to corona treatment promotes adhesion to the aqueous ink jet receiving layers.
  • the resulting ink jet medium can be processed at much higher temperatures( > 275 °F) than media made with current polyethylene coated substrates as digital ink jet photo bases.
  • Solvent based and solvent modified aqueous coatings usually do not require a corona treatment.
  • ink jet coatings have much superior wet adhesion to these radiation cured coatings than to gelatin subbed polyethylene coated papers like F. Schoeller RG-250, whereon subbing wet swell can cause adhesion failure.
  • the glossy support layer of the present invention is prepared as a UV curable formulation.
  • the formulation comprises a mixture of a tetrafunctional polyester acrylate, a difunctional acrylic ester, a UV photoinitiator and a poly ether.
  • the coating composition of the present invention is unique in that it consists entirely of polyfunctional polymerizable reactants, i.e., no monofunctional components, and yet is quite flexible. This choice results in a very high crosslink density within the coating (often expressed as moles of crosslinker per kilogram of resin) which is believed to inhibit solvent penetration of this layer, and hence prevent water penetration into the paper substrate, which would result in cockling. The high crosslink density also thwarts solvent swelling or recasting of the layers surface which can result in gloss deterioration. In the formulation used to prepare the support layer, the tetrafunctional polyesteracrylate and difunctional acrylic ester are very important components.
  • tetrafunctional polyester acrylate such as those commercially available, e.g., the RCC 13-429 polyester acrylate oligomer available from HENKEL Corp., and the SR-564 tetrafunctional polyester acrylate available from Sartomer Co. would be appropriate for use in the present application.
  • the preferred difunctional acrylic ester is an epoxy diacrylate.
  • a preferred example of an epoxy diacrylate is bisphenol A epoxy diacrylate.
  • a mixture of diacrylates can also be used, for example, a mixture of bisphenol A epoxy diacrylate and ethoxylated hexane diol diacrylate.
  • the tetrafunctional polyesteracrylate and difunctional acrylic ester are generally employed in the formulation in a weight ratio of tetrafunctional polyester acrylate to difunctional acrylic ester which ranges from about 2: 1 to about 1:1, more preferably from about 1.8:1 to about 1.2: 1, and most preferably in the range from about 1.7: 1 to about 1.6: 1. It has been found that these ratios provide a formulation which yields a good viscosity for applying formulation to form the supporting layer, as well as to remain on top of the latex paper until a cure can be effected. In general, the viscosity of the overall formulation should be controlled so that upon application of the substrate, it will not absorb into the substrate, but remain on top until a curing of the support layer can be effected.
  • the UV photoinitiator which is part of the formulation can be any suitable UV photoinitiator.
  • the photoinitiator allows the formulation to be cured once applied to the substrate.
  • An example of an appropriate UV photoinitiator is an alpha hydroxy ketone available commercially under the trademark DARAOCURE 1173.
  • the amount of photoinitiator employed in the formulation is an amount effective for initiating the curing of the support layer.
  • the fourth component of the formulation used to prepare the support layer is a polyether.
  • the polyether has been found to be an important component in that it appears to be labile toward corona treatment, and thus upon corona treatment sites are believed to be generated on the polyether to allow better bonding with the ink jet layer.
  • polyethers are the poly gly cols, such as polyethylene glycol and polypropylene glycol. Mixtures and copolymers can be employed.
  • the amount of polyether employed in the formulation generally ranges from 2 to 10 weight percent, more preferably from 3 to 7 weight percent, and most preferably from 4 to 6 weight percent of the formulation.
  • the ethoxylated HDODA is an ethoxylated hexane diol diacrylate available from HENKEL Corp. as RCC 13-361; the polyethylene glycol PEG-1000 is available from Dow under the tradename CARBOWAX 1000; the optical brightener is available from Ciba Geigy as UVITEX OB; the polyester acrylate is available from HENKEL Corp. as RCC 13-429; and the epoxy acrylate is available from HENKEL Corp. as PHOTOMER 3015.
  • the foregoing formulation can be applied to a substrate, preferably a non- yellowing, bright, white, latex coated paper base, which when coated at ⁇ Iff 11000ft 2 ( ⁇ 5 ⁇ ) on a latex coated paper substrate and UV radiation cured, the formula gives a film layer whose surface has a high gloss( > 60 %@ 20° angle). After corona treatment, this coating acts as a glossy support layer and has excellent adhesion to subsequent ink jet receiving layers. It also provides the hand (feel) of a high quality photographic base. Electron Beam radiation cure is not as beneficial as UV curing to this process. Various electron beam radiation levels (e.g. 2-4 megarads) cause cure of the coating but a blooming or a fogging affect of the glossy coating due to migration of the polyethylene glycol occurs within 24 hours and discoloration of the paper substrate can occur as well.
  • a substrate preferably a non- yellowing, bright, white, latex coated paper base, which when coated at ⁇ Iff 11000ft 2 (
  • UV cured systems are very hydrophobic and as a result have relatively low surface energy ( ⁇ 36 dynes/cm). Wetability and adhesion are critical to receiving many of the different types of aqueous ink jet coatings.
  • an aqueous ink jet image coating can be applied and dried above 220 °F without wetting defects caused by the radiation cured layer.
  • the adhesion of the glossy support layer to the paper substrate and the ink jet receiving layer has been found to be excellent.
  • An ink jet recording material with its various layers in accordance with the present invention is shown in the Figure of the Drawing.
  • the ink receiving layer generally comprises a polymeric binder, which can be a mixture of polymers.
  • the ink receiving layer can also comprise solid particulates such as pigments. The addition of such solid particulates can be added in order to obtain a coating that works well for both dye based and pigmented ink systems.
  • Solid particulates that are preferred include silica particulates, and in particular small particle sized hydrated silica. Such silica can be obtained, for example, from Grace Davidson.
  • Another type of preferred particulate that gives both good waterfast and print quality properties is synthetic calcium silicate.
  • the use of the calcium silicate such as commercially available Hubersorb 600 from J.M. Huber is preferred as such a calcium silicate has a very high oil absorption. Additionally, boehmite alumina can also be used.
  • the ink receiving layer can be coated onto the support of the present invention using any conventional coating process or method.
  • a mixture of the polymers/particulates, generally in a coating solution of suitable viscosity for coating, is simply coated onto the support using a coating rod or other suitable method. Once coated, the coating can be dried using any conventional technique, such as an air drying or oven drying.
  • the Figure of the Drawing depicts a preferred embodiment of the present invention. Depicted in the Drawing is an ink jet photobase with glossy UV cured support layer.
  • the substrate 1 is a latex coated paper.
  • the UV cured glossy layer 2 prepared from the formulation of the present invention is coated onto the substrate.
  • the thickness of the UV cured layer preferably ranges from 2 to 7 microns.
  • the ink jet receiving layer 3 is coated on top of the UV cured layer.
  • the ink jet receiving layer can be applied at any conventional thickness, but is preferably applied in the range of from 10 to 15 microns, and is most preferably around 12 microns in thickness. It is most preferred that the ink jet receiving layer is an aqueous based composition.
  • Example 1 The formulation of Table 1 was prepared with low shear blending equipment. The 100% solids formulation was then hand drawn down with a #2.3 wire rod (ct. wt. Range 3-4#/msf) and cured with lab radiation equipment utilizing "H" type fusion microwave bulbs. The cured glossy layer was flexible and had the hand of a gelatin type photographic paper. The gloss was above 60@20° . The surface energy of the glossy coating was ⁇ 36 dynes/cm. After hand corona treatment with an Electro-Technic Products, Inc. model BD-20 unit, the surface energy was ⁇ 46 dynes/cm.
  • This hand sheet was then coated with an ink jet receiving formulation comprised of a 10% solids gelatin based formulation.
  • the formulation leveled out well with no repellencies visible. It was dried for 4 min. at 250°F.
  • the resulting glossy hand sheet had a gloss > 55@20°.
  • the adhesion was tested by scoring the coating with a sharp razor knife in a cross hatch design. A piece of #810 scotch tape was placed over hatch marks and rubbed with pressure. Then it was pulled away and the result was that both the ink jet coating attached to the UV cured coating and some of the paper tore away. Without corona treatment the ink jet receiving layer delaminates easily when the tape is applied and then pulled away. This coating was also made on a polyester substrate and a latex coated paper and subjected to an accelerated 5 year indoor exposure on a HPUV machine. No significant yellowing of the coating was observed.
  • Example 2 The formulation of Table 1, without photoinitiator, was prepared with low shear blending equipment. The 100% solids formulation was then drawn down with a #2.3 wire rod and cured with an Electron Beam radiation (2 Mega
  • the cured layer containing the polyethylene glycol mwt. -1000 was glossy, flexible and had the hand of a gelatin type photographic paper surface. However, a foggy appearance was noticed on the surface of the coating after 1 day. The paper substrate turned slightly blue grey on both the front and back surface.
  • Example 3 The UV formulation was prepared, coated and cured as in Example 1. The UV glossy coating was then corona treated by a lab unit as in Example 1. Then an ink jet receiving layer comprised of an aqueous poly vinyl alcohol binder was coated onto the hand sheet.

Landscapes

  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Laminated Bodies (AREA)
  • Paper (AREA)

Abstract

Cette invention se rapporte à un support pour matériau d'impression à jet d'encre, ce support comprenant un substrat et une couche de revêtement résineuse vulcanisée par UV, placée sur le substrat et constituée par un acrylate de polyester tétrafonctionnel, un ester acrylique bifonctionnel, un photo-initiateur pour UV et un polyéther.
PCT/US2000/020900 1999-08-05 2000-08-01 Support brillant vulcanise par uv pour materiau d'impression a jet d'encre WO2001010640A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67522/00A AU6752200A (en) 1999-08-05 2000-08-01 Uv cured glossy support for ink jet recording material

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/368,158 US6326415B1 (en) 1999-08-05 1999-08-05 UV cured glossy support for ink jet recording material
US09/368,158 1999-08-05
US61225800A 2000-07-07 2000-07-07
US09/612,258 2000-07-07

Publications (2)

Publication Number Publication Date
WO2001010640A1 true WO2001010640A1 (fr) 2001-02-15
WO2001010640A8 WO2001010640A8 (fr) 2001-07-05

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PCT/US2000/020900 WO2001010640A1 (fr) 1999-08-05 2000-08-01 Support brillant vulcanise par uv pour materiau d'impression a jet d'encre

Country Status (2)

Country Link
AU (1) AU6752200A (fr)
WO (1) WO2001010640A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1193079A2 (fr) * 2000-09-28 2002-04-03 Hewlett-Packard Company Amélioration de la stabilité à la lumière de média pour le jet d'encre par addition de photoinitiateurs
WO2002094574A1 (fr) * 2001-05-23 2002-11-28 Arkwright, Inc. Support d'enregistrement pour imprimantes a jet d'encre et son procede de preparation
WO2006037085A2 (fr) 2004-09-27 2006-04-06 Arkwright, Inc. A Rhode Island Corporation Support d'impression a jet d'encre ayant un revetement permeable au vehicule de l'encre et un revetement microporeux
EP2426176A1 (fr) * 2010-09-03 2012-03-07 Michelman, Inc. Revêtement d'apprêt durcissable par rayonnement
WO2016018310A1 (fr) * 2014-07-30 2016-02-04 Hewlett-Packard Development Company, L.P. Support d'impression imprimable

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4649062A (en) * 1983-01-05 1987-03-10 Ciba-Geigy Corporation Ultraviolet radiation curable vehicle for ceramic colors, composition and method
US4952486A (en) * 1985-05-21 1990-08-28 Felix Schoeller, Jr. Gmbh & Co., Kg Support material for thermally developable photographic layers
US5405678A (en) * 1993-05-07 1995-04-11 Otis Specialty Papers Inc. Ink jet recording sheet
US5472757A (en) * 1992-12-25 1995-12-05 Mitsubishi Paper Mills Limited Ink jet recording sheet
EP0770493A1 (fr) * 1995-10-24 1997-05-02 Oji Paper Co., Ltd. Support et matériau pour l'enregistrement par jet d'encre contenant ce support
US5780118A (en) * 1996-07-01 1998-07-14 Xerox Corporation Method for increasing hydrophilicity of transparencies used as recording media in a thermal ink jet printer
US5910359A (en) * 1995-10-04 1999-06-08 Fuji Photo Film Co., Ltd. Recording sheet and image forming method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4649062A (en) * 1983-01-05 1987-03-10 Ciba-Geigy Corporation Ultraviolet radiation curable vehicle for ceramic colors, composition and method
US4952486A (en) * 1985-05-21 1990-08-28 Felix Schoeller, Jr. Gmbh & Co., Kg Support material for thermally developable photographic layers
US5472757A (en) * 1992-12-25 1995-12-05 Mitsubishi Paper Mills Limited Ink jet recording sheet
US5405678A (en) * 1993-05-07 1995-04-11 Otis Specialty Papers Inc. Ink jet recording sheet
US5910359A (en) * 1995-10-04 1999-06-08 Fuji Photo Film Co., Ltd. Recording sheet and image forming method
EP0770493A1 (fr) * 1995-10-24 1997-05-02 Oji Paper Co., Ltd. Support et matériau pour l'enregistrement par jet d'encre contenant ce support
US5780118A (en) * 1996-07-01 1998-07-14 Xerox Corporation Method for increasing hydrophilicity of transparencies used as recording media in a thermal ink jet printer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1193079A2 (fr) * 2000-09-28 2002-04-03 Hewlett-Packard Company Amélioration de la stabilité à la lumière de média pour le jet d'encre par addition de photoinitiateurs
EP1193079A3 (fr) * 2000-09-28 2004-01-14 Hewlett-Packard Company Amélioration de la stabilité à la lumière de média pour le jet d'encre par addition de photoinitiateurs
WO2002094574A1 (fr) * 2001-05-23 2002-11-28 Arkwright, Inc. Support d'enregistrement pour imprimantes a jet d'encre et son procede de preparation
WO2006037085A2 (fr) 2004-09-27 2006-04-06 Arkwright, Inc. A Rhode Island Corporation Support d'impression a jet d'encre ayant un revetement permeable au vehicule de l'encre et un revetement microporeux
EP1805036A2 (fr) * 2004-09-27 2007-07-11 Arkwright, Inc. Support d'impression a jet d'encre ayant un revetement permeable au vehicule de l'encre et un revetement microporeux
EP1805036B1 (fr) * 2004-09-27 2010-02-24 Arkwright, Inc. Support d'impression a jet d'encre ayant un revetement permeable au vehicule de l'encre et un revetement microporeux
EP2426176A1 (fr) * 2010-09-03 2012-03-07 Michelman, Inc. Revêtement d'apprêt durcissable par rayonnement
WO2016018310A1 (fr) * 2014-07-30 2016-02-04 Hewlett-Packard Development Company, L.P. Support d'impression imprimable
US9873279B2 (en) 2014-07-30 2018-01-23 Hewlett-Packard Development Company, L.P. Printable recording media

Also Published As

Publication number Publication date
WO2001010640A8 (fr) 2001-07-05
AU6752200A (en) 2001-03-05

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