CA2381315A1 - Method of producing a high gloss coating on a printed surface - Google Patents

Method of producing a high gloss coating on a printed surface Download PDF

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Publication number
CA2381315A1
CA2381315A1 CA002381315A CA2381315A CA2381315A1 CA 2381315 A1 CA2381315 A1 CA 2381315A1 CA 002381315 A CA002381315 A CA 002381315A CA 2381315 A CA2381315 A CA 2381315A CA 2381315 A1 CA2381315 A1 CA 2381315A1
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Prior art keywords
coating
acrylates
film
meth
forming polymer
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CA002381315A
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French (fr)
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CA2381315C (en
Inventor
Joseph Frazzitta
Frank V. Frazzitta
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/32—Ducts, containers, or like supply devices for liquids
    • 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
    • B41M7/0045—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or film forming compositions cured by mechanical wave energy, e.g. ultrasonics, cured by electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams, or cured by magnetic or electric fields, e.g. electric discharge, plasma
    • 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
    • B41M7/0054—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or film forming compositions cured by thermal means, e.g. infrared radiation, heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2203/00—Other substrates
    • B05D2203/22—Paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/02—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/542—No clear coat specified the two layers being cured or baked together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/30—Recovering used solvents or residues
    • B41P2235/31—Recovering used solvents or residues by filtering

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Printing Methods (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention is directed to a method for producing a high gloss coating on a printed surface. An aqueous coating composition in pan (1) is deposited onto a surface to be printed using rollers (3, 5) and coating cylinder (9) whose blanket roller coating face has a low energy, non-stick, smooth surface profile on which coating blanket (7) is formed. Simultaneous with the deposition of aqueous coating onto a substrate, or shortly thereafter, pressure between cylinders (9, 10) at nip (11), either alone or in combination with heat may be applied to the coating in order to create a substantially tack-free surface conforming to the surface of the coating face. The substrate is fed to cylinder (10), via cylinder (15) and removed by cylinder (16). By using a highly polished coating face, high gloss coatings may be obtained using this methodlogy in a number of traditional printing techniques including wet trap inline sheet-fed printing, heat-set offset printing, dry trap inline flexographic printing, offset web-fed printing and gravure printing. Coatings which are produced utilizing the present invention have high gloss values heretofore unobtainable using aqueous coating compositions.

Claims (98)

1. A method of depositing a coating composition onto an inked or ink-free substrate surface in a printing method comprising the steps of :
1). Applying a coating composition onto a low energy, smooth, non-stick coating face surface of a blanket or coating cylinder in a printing process in an amount effective to coat an inked or ink-free substrate, said coating composition being sufficiently wettable to spread evenly over said coating face surface; and
2). Transferring said coating composition from said coating face onto an inked or ink-free substrate surface, said coating being deposited onto said substrate surface under an amount of pressure and temperature and for a period of time effective to produce a substantially tack-free coating at the interface of said coating face surface and said substrate surface, said coating conforming substantially to said coating face surface, said coating face surface having sufficient release characteristics to allow said coating to be completely transferred from said coating face surface to said substrate to produce a coating film, said coating film on said substrate exhibiting a high gloss finish.
2. The method according to claim 1 wherein said coating face surface has a surface energy of about 31 dynes/cm2 or less.
3. The method according to claim 1 or 2 wherein said substrate has a surface energy of greater than about 31 dynes/cm2.
4. The method according to claims 1 wherein said coating face surface is a coating blanket surface comprising a material selected from the group consisting of polyurethane elastomers, natural and synthetic rubber, polyesters, polyvinyl chloride, polystyrene, polysiloxane, polysilicone (meth)acrylate, polysilicone acrylate, metallized plastics, fluoropolymers and polyvinyl alkoxy polymer.
5. The method according to claim 4 wherein said fluoropolymer is selected from the group consisting of ethylene-chlorotrifluoroethylene, fluorinated ethylene propylene, ethylene tetrafluoro ethylene, polytetrafluoroethylene, polyvinyldifluorine, perfluoroalkoxy and mixtures thereof.
6. The method according to claim 4 wherein said material is selected from the group consisting of polyurethane elastomers, polyesters, polyvinyl chloride, polystyrene, polysiloxane, polysilicone acrylate, polysilicone (meth)acrylate, metallized plastics and polyvinyl alkoxy polymer.
7. The method according to any of claims 1-6 wherein said material has been conditioned with a release agent to lower the surface energy value.
8. The method according to claims 6 wherein said polyester is polyethylene terephthalate.
9. The method according to claim 4 wherein said metallized plastic is metallized polyethylene terephthalate having a nickel alloy metal surface.
10. The method according to any of claims 1-9 wherein said coating face surface is a reflective surface exhibiting a smoothness Ra ranging from 0 to about 7 microns.
11. The method according to claim 10 wherein said coating face surface exhibits a smoothness Ra ranging from 0 to about 4 microns.
12. The method according to claim 1 wherein said coating composition is an aqueous coating composition comprising:
a) an amount of at least one film-forming polymer ranging from about 15% to about 90% by weight of said composition, said film-forming polymer comprising a high molecular weight film-forming polymer in an amount ranging from 0% to about 100% by weight of said film-forming polymer and a low molecular weight weight film-forming polymer in an amount ranging from 0% to about 100% by weight of said film-forming polymer with the proviso that the amount of high molecular weight film-forming polymer and low molecular weight film-forming polymer is at least 15% by weight of said film-forming polymer;
b) an amount of an emulsifier or surfactant ranging from about 0.05% to about 20%
by weight of said composition; and c) an amount of water or a mixture of water and a solvent ranging from about 10% to about 85% by weight of said composition.
13. The method according to claim 12 wherein said high molecular weight film-forming polymer ranges from about 5% to about 95% by weight of said film-forming polymer and said low molecular weight film-forming polymer ranges from about 5% to about 95% by weight of said film-forming polymer.
14. The method according to claim 12 or 13 wherein said film-forming polymer is a hydrophilic or water-dispersible resin or polymer.
15. The method according to any of claims 12-14 wherein said film-forming polymer is selected from the group consisting of polyvinyl alcohol), poly(alkyl methacrylate), poly(alkyl acrylate), polystyrene, polyester, nylons, polyamides, polyethylene glycols, polyimides, polycarbonates, polyepoxies, polyacrylonitriles, polyethylene, polyvinyl, polyvinylpyrrolidones and mixtures, thereof.
16. The method according to any of claims 12-15 wherein said film-forming polymer is a homopolymer or copolymer of at least one monomer selected from the group consisting of styrene, alpha-methylstyrene, ar-ethylstyrene, vinyltoluene, a,ar-dimethylstyrene, ar-t-butylstyrene, o-chlorostyrene, m-chlorostyrene, p-bromostyrene, 2,4-dichlorostyrene, 2,5-dichlorostyrene, vinylnapthalene, alkylesters of (meth)acrylic acid and acrylic acid and alpha,beta-ethylenically unsaturated carboxylic acids.
17. The method according to any of claims 12-16 wherein said polymer is a styrene-(meth)acrylate copolymer.
18. The method according to any of claims 12-17 wherein said solvent is selected from the group consisting of ethanol, methanol, acetone, methylethyl ketone, ethyl acetate, methyl acetate, isopropanol, n-butanol, n-butyl acetate, methylchloroform, methylene chloride, toluene, xylene, amyl acetate, pentane, cyclopentane, hexane, cyclohexane, tetrahydrofuran, 1,4-dioxane, cellosolve, butyl cellosolve acetate, cellosolve acetate, methyl cellosolve acetate, butyl cellosolve, ethyl cellosolve and mixtures thereof.
19. The method according to any of claims 12-18 wherein said solvent comprises no more than about 15% by weight of a VOC.
20. The method according to any of claims 12-19 wherein said composition further comprises at least one additional component selected from the group consisting of mar resistant agents, hardening agents, coalescing agents, plasticizer agents, defoaming agents, release agents and pigments.
21. The method according to claim 20 wherein said pigment is included in said composition in an amount ranging from about 0.1 % to about 30% by weight.
22. The method according to any of claims 1-11 wherein said coating composition comprises UV or heat curable monomers, oligomers or polymers and optionally, an effective amount of an initiator, and said transferring step occurs in the presence of UV light, heat or electron beam energy effective to polymerize said coating composition simultaneously with said transferring step or after said transferring step.
23. The method according to claim 22 wherein said coating composition further comprises an effective amount of water or a mixture of water and a solvent.
24. The method according to claim 22 or 23 wherein said coating composition further comprises at least one component selected from the group consisting of mar resistant agents, hardening agents, coalescing agents, plasticizer agents, defoaming agents, release agents and pigments.
25. The method according to any of claims 1-24 wherein said coating film on said substrate exhibits a high gloss finish of at least about 50°
reflection.
26. The method according to any of claims 1-25 wherein said coating film on said substrate exhibits a high gloss finish of at least about 70°
reflection.
27. The method according to any of claims 1-26 wherein said coating film on said substrate exhibits a high gloss finish of at least about 90 reflection.
28. The method according to claim 22 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acryalte monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (methacrylates), vinyl chloride, vinyl alcohol, and vinyl acetate.
29. A method of depositing a coating composition onto a first coated surface in a printing method, said first coated surface being inked or ink-free, said method comprising the steps of:
1). applying a first coating composition onto a substrate to provide a first coating;
2). applying a second coating composition onto a low energy, smooth, non-stick coating face surface of a blanket or coating cylinder in an amount effective to coat said first coating, said coating composition being sufficiently wettable to spread evenly over said coating face surface; and 2). Transferring said second coating composition from said coating face onto said first coating on said substrate surface, said second coating composition being deposited onto said first coating on said substrate surface under an amount of pressure and temperature and for a period of time effective to produce a substantially tack-free second coating at the interface of said coating face surface and said substrate surface from said second coating composition, said second coating conforming to said coating face surface, said coating face surface having sufficient release characteristics to allow said second coating to be completely transferred from said coating face surface to said substrate to produce a coating film from said coating, said coating film on said substrate exhibiting a high gloss finish of at least about 50°
reflection.
30. The method according to claim 29 wherein said first coating is a dried coating.
31. The method according to claim 29 wherein said first coating is a wet coating.
32. The method according to any of claims 29-31 wherein said coating face surface has a surface energy of less than about 31 dynes/cm2.
33. The method according to any of claims 29-31 wherein said substrate has a surface energy of greater than about 31 dynes/cm2.
34. The method according to any of claims 29-33 wherein said coating face surface is a coating blanket surface comprising a material selected from the group consisting of polyurethane elastomers, natural and synthetic rubber, polyesters, polyvinyl chloride, polystyrene, polysiloxane, polysilicone (meth)acrylate, polysilicone acrylate, metallized plastics, fluoropolymers and polyvinyl alkoxy polmer.
35. The method according to claim 34 wherein said fluoropolymer is selected from the group consisting of ethylene-chlorotrifluoroethylene, fluorinated ethylene propylene, ethylene tetrafluoro ethylene, polytetrafluoroethylene, polyvinyldifluorine, perfluoroalkoxy, and mixtures thereof.
36. The method according to claim 34 wherein said material is selected from the group consisting of polyurethane elastomers, polyesters, polyvinyl chloride, polystyrene, polysiloxane, polysilicone acrylate, polysilicone (meth)acrylate, metallized plastics and polyvinyl alkoxy polymer.
37. The method according to any of claims 34-36 wherein said material has been conditioned with a release agent.
38. The method according to claim 34 wherein said polyester is polyethylene terephthalate.
39. The method according to claim 34 wherein said metallized plastic is metallized polyethylene terephthalate having an alloy metal surface.
40. The method according to any of claims 29-40 wherein said coating face surface exhibits a smoothness Ra ranging from 0 to about 7 microns.
41. The method according to any of claims 29-40 wherein said coating face surface exhibits a smoothness Ra ranging from 0 to about 2 microns.
42. The method according to any of claims 29-41 wherein said first or second coating composition is an aqueous coating composition comprising:
a) an amount of at least one film-forming polymer ranging from about 15% to about 90% by weight of said composition, said film-forming polymer comprising a high molecular weight film-forming polymer in an amount ranging from 0% to about 100% by weight of said film-forming polymer and a low molecular weight weight film-forming polymer in an amount ranging from 0% to about 100% by weight of said film-forming polymer with the proviso that the amount of high molecular weight film-forming polymer and low molecular weight film-forming polymer is at least 15% by weight of said film-forming polymer;
b) an amount of an emulsifier or surfactant ranging from about 0.05% to about 20%
by weight of said composition; and c) an amount of water or a mixture of water and a solvent ranging from about 10% to about 85% by weight of said composition.
43. The method according to claim 42 wherein said high molecular weight film-forming polymer ranges from about 5% to about 95% by weight of said film-forming polymer and said low molecular weight film-forming polymer ranges from about 5% to about 95% by weight of said film-forming polymer.
44. The method according to claim 42 or 43 wherein said film-forming polymer is a hydrophilic or water-dispersible resin or polymer.
45. The method according to any of claims 42-44 wherein said film-forming polymer is selected from the group consisting of poly(vinyl alcohol), poly(alkyl methacrylate), poly(alkyl acrylate), polystyrene, polyester, nylons, polyamides, polyethylene glycols, polyimides, polycarbonates, polyepoxies, polyacrylonitriles, polyethylene, polyvinyl, polyvinylpyrrolidones and mixtures, thereof.
46. The method according to any of claims 42-45 wherein said film-forming polymer is a homopolymer or copolymer of at least one monomer selected from the group consisting of styrene, alpha-methylstyrene, ar-ethylstyrene, vinyltoluene, a,ar-dimethylstyrene, ar-t-butylstyrene, o-chlorostyrene, m-chlorostyrene, p-bromostyrene, 2,4-dichlorostyrene, 2,5-dichlorostyrene, vinylnapthalene, alkylesters of (meth)acrylic acid and acrylic acid and alpha,beta-ethylenically unsaturated carboxylic acids.
47. The method according to claim 42 wherein said polymer is a styrene-(meth)acrylate copolymer.
48. The method according to any of claims 42-47 wherein said solvent is selected from the group consisting of ethanol, methanol, acetone, methylethyl ketone, ethyl acetate, methyl acetate, isopropanol, n-butanol, n-butyl acetate, methylchloroform, methylene chloride, toluene, xylene, amyl acetate, pentane, cyclopentane, hexane, cyclohexane, tetrahydrofuran, 1,4-dioxane, cellosolve, butyl cellosolve acetate, cellosolve acetate, methyl cellosolve acetate, butyl cellosolve, ethyl cellosolve and mixtures thereof.
49. The method according to any of claims 42-48 wherein said solvent comprises no more than about 15% by weight of a VOC.
50. The method according to any of claims 42-49 wherein said composition further comprises at least one additional component selected from the group consisting of mar resistant agents, hardening agents, coalescing agents, plasticizer agents, defoaming agents, release agents and pigments.
51. The method according to claim 50 wherein said pigment is included in said composition in an amount ranging from about 0.1% to about 30% by weight.
52. The method according to claim 29 wherein said first or second coating composition comprises UV or heat curable monomers, oligomers or polymers and is cured by UV energy, heat energy or electron beam energy.
53. The method according to claim 52 wherein said coating comprising said monomers, oligomers or polymers further comprises an effective amount of an initiator.
54. The method according to claim 53 wherein said coating composition further comprises an effective amount of water or a mixture of water and a solvent.
55. The method according to claim 29 wherein said first coating composition comprises UV or heat curable monomers, oligomers or polymers and is cured by UV energy, heat energy or electron beam energy.
56. The method according to claim 29 wherein said second coating composition comprises UV or heat curable monomers, oligomers or polymers and is cured by LTV energy, heat energy or electron beam energy.
57. The method according to claim 29 wherein said first and said second coating compositions comprise UV or heat curable monomers, oligomers or polymers and is cured by UV energy, heat energy or electron beam energy.
58. The method according to claim 53 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acrylate monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (meth)acrylates, vinyl chloride, vinyl alcohol, and vinyl acetate.
59. The method according to claim 55 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acrylate monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (methacrylates), vinyl chloride, vinyl alcohol, and vinyl acetate.
60. The method accoding to claim 56 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acryalte monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (methacrylates), vinyl chloride, vinyl alcohol, and vinyl acetate.
61. The method according to claim 57 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acrylate monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (methacrylates), vinyl chloride, vinyl alcohol, and vinyl acetate.
62. The method according to claim 29 wherein said second coating composition is an aqueous coating composition which is free of polymerizable monomers.
63. A method of depositing a coating composition onto a substrate in a printing method, said method comprising the steps of:
1). applying a first coating composition onto a low energy, smooth, non-stick coating face surface of a blanket or coating cylinder, said coating composition being sufficiently wettable to spread evenly over said coating face surface;
2). Transferring said first coating composition from said coating face onto the surface of said substrate, said first coating composition being deposited onto said substrate under an amount of pressure and temperature and for a period of time effective to produce a substantially tack-free first coating at the interface of said coating face surface and said substrate surface from said first coating composition, said first coating conforming to said coating face surface, said coating face surface having sufficient release characteristics to allow said first coating to be completely transferred from said coating face surface to said substrate to produce a first coating film from said first coating, said first coating film on said substrate exhibiting a high gloss finish of at least about 50°
reflection; and 2). applying a second coating composition onto said first coating
64. The method according to claim 63 wherein said first coating is a wet coating.
65. The method according to claim 63 or 64 wherein said coating face surface has a surface energy of less than about 31 dynes/cm2.
66. The method according to any of claims 63-65 wherein said substrate has a surface energy of greater than about 31 dynes/cm2.
67. The method according to claim 63 wherein said coating face surface is a coating blanket surface comprising a material selected from the group consisting of polyurethane elastomers, natural or synthetic rubber, polyesters, polyvinyl chloride, polystyrene, polysiloxane, polysilicone (meth)acrylate, polysilicone acrylate, metallized plastics, fluoropolymers and polyvinyl alkoxy polymer.
68. The method according to claim 67 wherein said fluoropolymer is selected from the group consisting of ethylene-chlorotrifluoroethylene, fluorinated ethylene propylene, ethylene tetrafluoro ethylene, polytetrafluoroethylene, polyvinyldifluorine, perfluoroalkoxy, and mixtures thereof.
69. The method according to claim 67 wherein said material is selected from the group consisting of polyurethane elastomers, polyesters, polyvinyl chloride, polystyrene, polysiloxane, polysilicone acrylate, polysilicone (meth)acrylate, metallized plastics and polyvinyl alkoxy polymer.
70. The method according to claim 67 wherein said material has been conditioned with a release agent.
71. The method according to claim 67 wherein said polyester is polyethylene terephthalate.
72. The method according to claim 67 wherein said metallized plastic is metallized polyethylene terephthalate having an alloy metal surface.
73. The method according to any of claims 63-72 wherein said coating face surface exhibits a smoothness Ra ranging from 0 to about 7 microns.
74. The method according to any of claims 63-72 wherein said coating face surface exhibits a smoothness Ra ranging from 0 to about 2 microns.
75. The method according to claim 63 wherein said first or second coating composition is an aqueous coating composition comprising:
a) an amount of at least one film-forming polymer ranging from about 15% to about 90% by weight of said composition, said film-forming polymer comprising a high molecular weight film-forming polymer in an amount ranging from 0% to about 100% by weight of said film-forming polymer and a low molecular weight weight film-forming polymer in an amount ranging from 0% to about 100% by weight of said film-forming polymer with the proviso that the amount of high molecular weight film-forming polymer and low molecular weight film-forming polymer is at least 15% by weight of said film-forming polymer;
b) an amount of an emulsifier or surfactant ranging from about 0.05% to about 20%
by weight of said composition; and c) an amount of water or a mixture of water and a solvent ranging from about 10% to about 85% by weight of said composition.
76. The method according to claim 75 wherein said high molecular weight film-forming polymer ranges from about 5% to about 95% by weight of said film-forming polymer and said low molecular weight film-forming polymer ranges from about S% to about 95% by weight of said film-forming polymer.
77. The method according to claim 75 wherein said film-forming polymer is a hydrophilic or water-dispersible resin or polymer.
78. The method according to claim 75 wherein said film-forming polymer is selected from the group consisting of poly(vinyl alcohol), poly(alkyl methacrylate), poly(alkyl acrylate), polystyrene, polyester, nylons, polyamides, polyethylene glycols, polyimides, polycarbonates, polyepoxies, polyacrylonitriles, polyethylene, polyvinyl, polyvinylpyrrolidones and mixtures, thereof.
79. The method according to claim 75 wherein said film-forming polymer is a homopolymer or copolymer of at least one monomer selected from the group consisting of styrene, alpha-methylstyrene, ar-ethylstyrene, vinyltoluene, a,ar-dimethylstyrene, ar-t-butylstyrene, o-chlorostyrene, m-chlorostyrene, p-bromostyrene, 2,4-dichlorostyrene, 2,5-dichlorostyrene, vinylnapthalene, alkylesters of (meth)acrylic acid and acrylic acid and alpha,beta-ethylenically unsaturated carboxylic acids.
80. The method according to claim 75 wherein said polymer is a styrene-(meth)acrylate copolymer.
81. The method according to claim 75 wherein said solvent is selected from the group consisting of ethanol, methanol, acetone, methylethyl ketone, ethyl acetate, methyl acetate, isopropanol, n-butanol, n-butyl acetate, methylchloroform, methylene chloride, toluene, xylene, amyl acetate, pentane, cyclopentane, hexane, cyclohexane, tetrahydrofuran, 1,4-dioxane, cellosolve, butyl cellosolve acetate, cellosolve acetate, methyl cellosolve acetate, butyl cellosolve, ethyl cellosolve and mixtures thereof.
82. The method according to any of claims 75-82 wherein said solvent comprises no more than about 15% by weight of a VOC.
83. The method according to claim 75 wherein said composition further comprises at least one additional component selected from the group consisting of mar resistant agents, hardening agents, coalescing agents, plasticizer agents, defoaming agents, release agents and pigments.
84. The method according to claim 83 wherein said pigment is included in said composition in an amount ranging from about 0.1% to about 30% by weight.
85. The method according to claim 75 wherein said first or second coating composition comprises UV or heat curable monomers, oligomers or polymers and is cured by UV energy, heat energy or electron beam energy.
86. The method according to claim 85 wherein said coating comprising said monomers, oligomers or polymers further comprises an effective amount of an initiator.
87. The method according to claim 85 wherein said coating composition further comprises an effective amount of water or a mixture of water and a solvent.
88. The method according to claim 87 wherein said first coating composition comprises UV or heat curable monomers, oligomers or polymers and is cured by UV energy, heat energy or electron beam energy.
89. The method according to claim 75 wherein said second coating composition comprises UV or heat curable monomers, oligomers or polymers and is cured by UV energy, heat energy or electron beam energy.
90. The method according to claim 75 wherein said first and said second coating compositions comprise UV or heat curable monomers, oligomers or polymers and is cured by UV energy, heat energy or electron beam energy.
91. The method according to claim 85 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acrylate monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (meth)acrylates, vinyl chloride, vinyl alcohol, and vinyl acetate.
92. The method according to claim 86 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acrylate monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (methacrylates), vinyl chloride, vinyl alcohol, and vinyl acetate.
93. The method accoding to claim 87 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acrylate monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (methacrylates), vinyl chloride, vinyl alcohol, and vinyl acetate.
94. The method accoding to claim 88 wherein said monomers are selected from the group consisting of (meth)acrylate monomers, acrylate monomers, urethane acrylates and (meth)acrylates, epoxy acrylates and (meth)acrylates, polyester acrylates and (meth)acrylates, elastomeric acrylates and (methacrylates), vinyl chloride, vinyl alcohol, and vinyl acetate.
95. The method according to claim 63 wherein said first or second coating composition is an aqueous coating composition which is free of polymerizable monomers.
96. A coating face cylinder for use in a printing press, said coating face cylinder comprising a non-stick, low energy reflective surface.
97. The coating face cylinder according to claim 96 wherein said surface is created by a coating face blanket which is adapted to be mounted onto said coating
98. The coating face cylinder according to claim 96 or 97 wherein said printing press is used in a printing method selected from the group consisting of offset printing, wet trap or dry-trap inline sheet-fed printing, web-fed offset printing, dry trap inline flexographic printing, heat-set offset printing, heat set web printing, gravure printing, offline dry trap printing and UV dry-trap printing.
CA2381315A 1999-08-12 2000-08-10 Method of producing a high gloss coating on a printed surface Expired - Fee Related CA2381315C (en)

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US09/373,105 US6472028B1 (en) 1999-08-12 1999-08-12 Method of producing a high gloss coating on a printed surface
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EP1224036A4 (en) 2006-09-20
AU6764800A (en) 2001-03-13
EP1224036B1 (en) 2009-04-29
US6472028B1 (en) 2002-10-29
WO2001012342A1 (en) 2001-02-22
US20030113466A1 (en) 2003-06-19
EP1224036A1 (en) 2002-07-24
US20030104138A1 (en) 2003-06-05

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