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EP-3819128-B1 - PRINTED MATTER PRODUCING METHOD

EP3819128B1EP 3819128 B1EP3819128 B1EP 3819128B1EP-3819128-B1

Inventors

  • USUI, YUUMA
  • YOSHIDA, MASAKAZU
  • FUJIWARA, YUKIO
  • TAKADA, MIKIKO

Dates

Publication Date
20260513
Application Date
20201015

Claims (11)

  1. A printed matter producing method comprising: forming a foamable layer (43) containing a foaming agent (41) by application of a foamable layer forming liquid containing the foaming agent (41) over a base material (19) and subsequent curing of the foamable layer forming liquid; forming an ink receiving layer (60) containing a polymer of a polymerizable compound a over the foamable layer (43), wherein the ink receiving layer (60) is formed by application of an ink receiving layer forming liquid containing the polymerizable compound a over the foamable layer (43) and subsequent curing of the ink receiving layer forming liquid; applying an ink (70) containing a colorant and a polymerizable compound b over the ink receiving layer (60) and subsequently curing to form an image, wherein curing of the ink receiving layer forming liquid in the forming an ink receiving layer (60) and curing of the ink (70) in the applying an ink are performed collectively; and heating the foamable layer (43) to foam the foamable layer.
  2. The printed matter producing method according to claim 1, wherein in the applying an ink (70), the ink is applied over the ink receiving layer (60) by an inkjet method.
  3. The printed matter producing method according to claim 1 or 2, wherein the heating the foamable layer (43) is performed after the applying an ink (70).
  4. The printed matter producing method according to any one of claims 1 to 3, wherein the foaming agent (41) is a thermally expansible microcapsule.
  5. The printed matter producing method according to any one of claims 1 to 4, further comprising forming a transparent layer containing a polymer of a polymerizable compound c over at least one of the ink receiving layer (60) and the image.
  6. The printed matter producing method according to claim 5, wherein in the forming a transparent layer, the transparent layer is formed over at least the image.
  7. The printed matter producing method according to any one of claims 1 to 6, further comprising applying a defoaming agent (50) containing a multifunctional monomer to a predetermined region of the foamable layer (43) to bring the defoaming agent into contact with the predetermined region.
  8. The printed matter producing method according to claim 7, wherein in the applying a defoaming agent (50), the defoaming agent is applied by an inkjet method.
  9. The printed matter producing method according to any one of claims 1 to 8, further comprising before the forming a foamable layer (43), applying a corona discharge treatment to a base material (19) over which the foamable layer (43) is to be formed, to reform a surface of the base material (19).
  10. The printed matter producing method according to any one of claims 1 to 9, further comprising after the forming a foamable layer (43), applying a corona discharge treatment to the foamable layer (43) to reform a surface of the foamable layer (43).
  11. The printed matter producing method according to any one of claims 1 to 10, further comprising forming a filler-containing layer containing a filler over at least one of the ink receiving layer (60) and the image.

Description

BACKGROUND Technical Field The present disclosure relates to a printed matter producing method. Description of the Related Art Materials such as floorings and wallpaper having desired images printed and design properties imparted by, for example, embossing have been used on, for example, floors, interior walls, and ceilings of buildings. Attempts have been made to improve durability of floorings and wallpaper through, for example, coating with ultraviolet (UV)-curable materials and coating with electron beam-curable materials. Moreover, in recent years, techniques for inkjet-printing desired images on, for example, embossed floorings and wallpaper have been being developed. A method proposed as such a technique produces foamable wallpaper including a foamable layer, an image forming layer, and a surface protecting layer, wherein the foamable layer contains a thermoplastic resin and a foaming agent, and wherein the image forming layer and the surface protecting layer are crosslinkable or curable by electron beam irradiation (for example, see JP-5195999-B). EP-A-3378663 discloses an ink used for forming a photothermal conversion layer used for causing expansion of at least a portion of a thermal expansion layer of a thermal expansion sheet. WO-A-2018-015357 discloses a multi-layered sheet suitable as floor or wall covering exhibiting a three-dimensional surface relief and a decorative image, comprising: a support layer, a foamed layer, a decorative layer, an optional wear resistant layer, and an optional backing layer. SUMMARY The present invention has an object to provide a printed matter producing method capable of producing a printed matter that has an excellent design property based on a bossed-recessed shape and an excellent image quality and can maintain the excellent design property based on the bossed-recessed shape and the excellent image quality for a long term. The invention is set out in the appended set of claims. The present invention can provide a printed matter producing method capable of producing a printed matter that has an excellent design property based on a bossed-recessed shape and an excellent image quality and can maintain the excellent design property based on the bossed-recessed shape and the excellent image quality for a long term. BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS A more complete appreciation of the disclosure and many of the attendant advantages and features thereof can be readily obtained and understood from the following detailed description with reference to the accompanying drawings, wherein: FIG. 1 is a schematic view illustrating a printed matter producing apparatus according to an embodiment of the present disclosure;FIG. 2 is a schematic view illustrating another example of a printed matter producing apparatus according to an embodiment of the present disclosure;FIG. 3A is an exemplary view illustrating an example of a flow of printed matter production in a printed matter producing method according to an embodiment of the present invention;FIG. 3B is an exemplary view illustrating an example of a flow of printed matter production in a printed matter producing method according to an embodiment of the present invention;FIG. 3C is an exemplary view illustrating an example of a flow of printed matter production in a printed matter producing method according to an embodiment of the present invention;FIG. 3D is an exemplary view illustrating an example of a flow of printed matter production in a printed matter producing method according to an embodiment of the present invention;FIG. 3E is an exemplary view illustrating an example of a flow of printed matter production in a printed matter producing method according to an embodiment of the present invention;FIG. 3F is an exemplary view illustrating an example of a flow of printed matter production in a printed matter producing method according to an embodiment of the present invention; andFIG. 3G is an exemplary view illustrating an example of a flow of printed matter production in a printed matter producing method according to an embodiment of the present invention. DETAILED DESCRIPTION The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In describing embodiments illustrated in the drawings, specific terminology is employed for the sake of clarity. However, the disclosure of this specification is not intended to be limited to the specific terminology so selected and it is to be understood that each specific element includes all technical equivalents that have a similar function, operate in a similar manner, and achieve a similar result. (Printed matter producing method and printed matter producing apparatus) A printed matter producing method of the present inven