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
  • B41M5/52—Macromolecular coatings
  • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
• • 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
  • B41M5/52—Macromolecular coatings
• • 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
  • B41M5/52—Macromolecular coatings
  • B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
  • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
  • Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
  • Y10T428/277—Cellulosic substrate
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/3188—Next to cellulosic
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/3188—Next to cellulosic
  • Y10T428/31884—Regenerated or modified cellulose
  • Y10T428/31891—Where addition polymer is an ester or halide
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/3188—Next to cellulosic
  • Y10T428/31895—Paper or wood
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31855—Of addition polymer from unsaturated monomers
  • Y10T428/3188—Next to cellulosic
  • Y10T428/31895—Paper or wood
  • Y10T428/31906—Ester, halide or nitrile of addition polymer

Definitions

• the present invention relates to an ink jet receiving medium.
• the present invention relates to an ink jet receiving medium which yields a U.V. and water resistant ink jet print and a process for providing such a U.V. and water resistant ink jet print.
• Ink jet systems are typically comprised of three components: the printer, the ink and the receptor.
• the printer controls the size, number and placement of the ink droplets and contains the transport system.
• the ink provides the colorants which form the image, and the receptor provides the medium which accepts and holds the ink.
• the quality and stability of the resultant ink jet print is a function of the system as a whole. However, the composition and interaction of the ink and the receptor material most affect the quality and stability of the imaged product.
• the ink be absorbed as rapidly as possible, and that the spread of ink droplets be adequate.
• the resultant image should be excellent in storability, durability and water resistance.
• Ink compositions which are useful in ink jet recording systems are well known and generally contain water, organic solvents and dyes.
• European Patent 0,294, 155 discloses an ink jet composition useful in ink jet recording consisting of a water based vehicle containing about 30-99% wt. water with the balance made up of high boiling solvents such as glycol, glycol ethers, pyrrolidones and amides.
• the inks contain preferably acid or direct dyes.
• a polyhydric alcohol is added for the prevention of the clogging of nozzles and improvement of ejection stability.
• ink jet systems fall broadly into two categories; those that employ high organic solvent- water based inks, and those that are essentially aqueous.
• the resultant ink jet print using either of these types of ink has generally been found to exhibit a water resistance for which improvement is desired (i.e. , the dye image leaches out or the image layer containing the dye dissolves when contacted with water). Additionally, the dye image is prone to smudging.
• Ink jet film compositions are normally sensitive to water and the print can dissolve and leach out. Also, under humid conditions, the print can bleed thereby losing definition. This deterioration is generally accentuated when the inks employ high boiling solvents, such as glycols. Conventional ink jet prints often lack light resistance and good file aging properties as well. A solution to all the above shortcomings is required to achieve acceptable print stability.
• Polymeric films for use as recording media represent a special problem in ink jet recording because their surfaces are hydrophobic or quasi-hydrophobic. Even when their surfaces are treated with special coatings to accept and absorb the inks, it is difficult to obtain the requisite qualities of image density and resolution without incurring tack, smear, image bleed, water solubilization of the ink receptive matrix, or other undesirable properties.
• U.S. Patent No. 5,206,071 to Atherton et al. relates to film mediums useful in ink jet printing which films comprise a transparent, translucent or opaque substrate, having on at least one side thereof a water-insoluble, water- absorptive and ink-receptive matrix comprised of a hydrogel complex and a polymeric high molecular weight quaternary ammonium salt.
• U.S. Patent No. 4,877,680 to Sakaki et al. relates to a recording medium comprising a substrate and a non-porous ink receiving layer.
• the ink receiving layer contains a water-insoluble polymer containing a cationic resin.
• the recording medium may be employed for recording by attaching droplets of a recording liquid thereon.
• U.S. Patent No. 4,576,867 to Miyamoto relates to an ink jet recording paper wherein by attaching a cationic resin having a structure represented by the following general formula (I) to at least the surface of an ink jet recording paper, the water-resistance and the sunlight fastness of the image formed on the ink jet recording paper can be improved:
• R wherein R l 5 R 2 and R 3 represent alkyl group; m represents a number from 1 to 7; n represents a number from 2 to 20; and Y represents an acid residue.
• European patent publication 0,500,021 Al relates to a recording method and recording film comprising a transparent substrate, a porous alumina hydrate layer formed on the substrate and an opaque porous layer laminated on the alumina hydrate layer.
• Ink jet prints have always been prone to UV light fade, and moisture sensitivity. Since the majority of the ink jet inks currently used in desktop and graphic arts applications are composed mainly of water, the ink jet receiver coatings need to be water receptive. The challenge is to develop a hydrophilic, aqueous ink receptive coating that yields a water resistant ink jet print.
• an object of the present invention is to provide a novel recording medium for ink jet recording which is particularly excellent in ink receptivity, sharpness and water resistance.
• Another object of the present invention is to provide a recording medium for ink jet recording which is excellent in water resistance, even under highly humid conditions, and also free from migration or leaching of the print ink when water droplets contact the surface of the recorded image, or when left to stand under highly humid conditions.
• Still another object of the present invention is to provide a water resistant ink jet print and method thereof.
• a receiving medium comprising a substrate and an ink receiving layer provided thereon, said ink receiving layer comprising a blend of an ethylene vinylacetate copolymer and a hydrolyzed poly vinyl alcohol.
• a process for providing a water resistant ink jet print comprises attaching droplets of a recording liquid on a recording medium, said recording liquid containing a water-soluble dye, water and an organic solvent, and said recording medium comprising an ink receiving layer provided on a substrate, with the ink receiving layer comprising a blend of an ethylene vinylacetate copolymer and a hydrolyzed polyvinylalcohol.
• the ink receiving layer further comprises a solid particulate such as silica.
• the present invention relates to an ink jet recording medium.
• the ink jet recording medium of the present invention comprises a receiving layer which is water resistant and offers long term durability of the printed image, which includes a blend of an ethylene vinylacetate copolymer and a hydrolyzed poly vinyl alcohol.
• ethylene vinylacetate copolymers form the backbone of an excellent water resistant ink jet coating, which coating can also provide ink jet prints exhibiting excellent UV light resistance and resistance to moisture sensitivity.
• the ethylene vinylacetate copolymers are blended with a hydrolyzed poly vinyl alcohol.
• An ethylene vinylacetate copolymer is important for the purposes of the present invention as use of simply a polyvinyl acetate does not provide a receiving layer which exhibits the same level of water fastness as the ethylene vinylacetate copolymers.
• Any ethylene vinylacetate copolymer will generally be suitable for purposes of the present invention.
• Such copolymers are commercially available, e.g. , such as random ethylene vinylacetate copolymers available from Air Products and Chemicals, Inc. It is also important to blend the ethylene vinylacetate copolymer with a hydrolyzed polyvinyl alcohol to achieve the water resistance as well as long term durability of the printed images.
• the polyvinyl alcohol is most preferably fully hydrolyzed, which is 98-99% hydrolyzed.
• the polyvinyl alcohol should generally be at least 88 % hydrolyzed for purposes of the present invention.
• the blend of ethylene vinylacetate copolymer and hydrolyzed polyvinyl alcohol can range from about 0.5: 1 to about 15: 1 in weight ratio of the ethylene vinylacetate copolymer to the polyvinyl alcohol, with a weight ratio of from 1: 1 to about 4: 1 being most preferred.
• Ethylene vinylacetate copolymers and hydrolyzed polyvinyl alcohol are both commercially available, for example, from Air Products and Chemicals Inc. of Allentown, Pennsylvania.
• the blend of polymers used as the receiving layer of the recording medium can also include solid particulates such as pigments.
• 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.
• the solid particulates that work best for the present invention are small particle sized hydrated silica. Such silica can be obtained, for example, from Grace Davidson.
• Another type of preferred particulate that gives both good water fast 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.
• the blend of ethylene vinylacetate copolymer and polyvinyl alcohol (and optionally solid particulate) can be coated onto a suitable substrate using any conventional coating process or method.
• the substrates upon which coating can be applied can vary greatly. It is preferred that the coating be applied to a substrate such as white film, polyethylene clad paper (photobased paper), adhesive backed vinyl paper, plain paper or canvas. Other suitable substrates can also be coated with the receiving layer in accordance with the present invention to provide an aqueous waterfast ink jet receiver sheet.
• a substrate such as white film, polyethylene clad paper (photobased paper), adhesive backed vinyl paper, plain paper or canvas.
• Other suitable substrates can also be coated with the receiving layer in accordance with the present invention to provide an aqueous waterfast ink jet receiver sheet.
• Syloid W-300 Hydrated amorphous silica, from W.R. Grace, Baltimore, Md.
• Airflex 110 Vinyl acetate/ethylene copolymer latex, from Air Products and Chemicals, Inc. of Allentown, Pa.
• Airvol 325 Fully hydrolyzed polyvinyl alcohol from Air Products and Chemicals, Inc. of Allentown, Pa.
• PVP K90 polyvinyl pyrrolidone molecular weight ⁇ 1,000,000, from International Specialty Polymers of Wayne, NJ.
• Syloid 234 - amorphous silica from W.R. Grace, Baltimore, Md.
• Syloid 620 - amorphous precipitated silica from W.R. Grace, Baltimore, Md.
• Cyanamer P-21 acrylamide/ acrylic acid copolymer, from Cytec Industries Inc. of West Patterson, NJ.
• CX-100 aziridine crosslinker, from Zeneca Resins of Wilmington, Ma.
• Agefloc A-50HV - poly (Hydroxyalkene Ammonium Chloride), from C.P.S. Chemicals of Old Bridge, NJ.
• Gafquat 755N Quaternized copolymer of vinylpyrrolidone and dimethylaminoethyl methacrylate, from International Specialty Products of Wayne, NJ.
• the above mix was prepared by dispersing the Syloid W-300 amorphous silica in water with a Waring blender for 4 minutes.
• the Airflex 110 was then mixed for about 5 minutes in a mixer.
• the final three ingredients Airvol 325, Agefloc A-50HV, and Zonyl FSN) were added and stirred for an additional 5 minutes.
• composition was then coated onto V400F vinyl with a gapped 130 rod to achieve a coating weight of about 6.0 lb./MSF.
• the coating was dried in a laboratory Blue M convection oven for 8 minutes at 265 °F.
• the sample was then printed on an Encad Novajet II ink jet printer using a full color test pattern.
• Visual densities of cyan, magenta, yellow, red, green, blue, and black were run using an XRITE 938 color densitometer.
• the print was allowed to air dry for one hour, then it was completely immersed in water for ten minutes. After immersion, one section of the print containing all seven colors was allowed to air dry for one hour, and then remeasured on the densitometer. The other section was blotted dry to remove excess water, then rubbed with a cloth rag. All results are recorded in Table 1 below.
• Example 2 The following mixture was prepared in the same manner as described in
• Example 1 The coating, printing and waterfast testing were all run in the same manner as Example 1. The results can be seen in Table 1 below. Deionized water 56.41
• Example 1 The coating, printing and waterfast testing were all run in the same manner as Example 1. The results can be seen in Table 1 below. Deionized Water 15.46
• Example 1 The coating, printing and waterfast testing were all run in the same manner as Example 1. The results can be seen in Table 1 below.
• Example 1 The following mixture was prepared in the same manner as described in Example 1. The coating, printing and waterfast testing were all run in the same manner as Example 1. The results can be seen in Table 1 below.
• the recording media of the present invention provide an ink jet print exhibiting excellent water resistance and stability as compared to other media containing other recording layers.
• the recording media of the present invention also provide excellent UV fade resistance for ink jet prints.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Ink Jet Recording Methods And Recording Media Thereof (AREA)
• Ink Jet (AREA)
• Laminated Bodies (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Inks, Pencil-Leads, Or Crayons (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=24988523

Family Applications (1)

Country Status (9)

Cited By (1)

Families Citing this family (16)

Citations (2)

Family Cites Families (4)

• 1996
  • 1996-11-04 US US08/743,370 patent/US5853899A/en not_active Expired - Lifetime
• 1997
  • 1997-10-03 AU AU46063/97A patent/AU718531B2/en not_active Ceased
  • 1997-10-03 EP EP97944604A patent/EP0881963B1/en not_active Revoked
  • 1997-10-03 WO PCT/US1997/017820 patent/WO1998019857A1/en not_active Ceased
  • 1997-10-03 DE DE69709063T patent/DE69709063T2/de not_active Expired - Fee Related
  • 1997-10-03 AT AT97944604T patent/ATE210561T1/de not_active IP Right Cessation
  • 1997-10-03 CA CA002241943A patent/CA2241943A1/en not_active Abandoned
  • 1997-10-03 JP JP10521390A patent/JP3092948B2/ja not_active Expired - Fee Related
  • 1997-10-08 TW TW086114730A patent/TW341546B/zh active

Patent Citations (2)

Also Published As

Similar Documents

Legal Events