Producing method for printing plate, producing method for functional element, and printing apparatus

A producing method for a printing plate comprising:

• a hydrophobic solvent permeation preventing layer forming step of forming a hydrophobic solvent permeation preventing layer on a substrate containing an elastic body swellable in a solvent;
• a resist pattern forming step of forming a resist pattern on the hydrophobic solvent permeation preventing layer;
• a removing and hydrophilizing step of removing the hydrophobic solvent permeation preventing layer at an opening portion of the resist pattern, and hydrophilizing the exposed substrate surface;
• and
• a resist pattern peeling step of peeling the resist pattern.

A producing method for a functional element comprising:

• a printing plate preparing step of preparing a printing plate comprising:
• a substrate containing an elastic body swellable in a solvent, a hydrophobic solvent permeation preventing layer formed on the substrate in a pattern, and a hydrophilic portion that is formed on a surface of the substrate at an opening portion of the hydrophobic solvent permeation preventing layer and higher in hydrophilicity than the hydrophobic solvent permeation preventing layer;
• characterized in that a surface of the hydrophobic solvent permeation preventing layer side of the substrate is flat;
• a blanket preparing step of preparing a blanket including a second substrate that contains an elastic body swellable in a solvent and includes a hydrophilic region on the surface;
• a coating step of coating the hydrophilic region side surface of the blanket with a coating solution for forming functional layer;
• a first transferring step of transferring the coating solution for forming functional layer in the blanket to only the hydrophilic portion of the printing plate by making the blanket to contact with the printing plate via the coating solution for forming functional layer;
• and
• a second transferring step of forming a functional layer by transferring the coating solution for forming functional layer remaining in the blanket to a substrate for forming functional layer;
• wherein the hydrophilic region of the blanket is higher in hydrophilicity than the hydrophobic solvent permeation preventing layer of the printing plate, and is equal to or lower in hydrophilicity than the hydrophilic portion.

A printing apparatus comprising:

• a printing plate that comprises a substrate containing an elastic body swellable in a solvent, a hydrophobic solvent permeation preventing layer formed on the substrate in a pattern, and a hydrophilic portion that is formed on a surface of the substrate at an opening portion of the hydrophobic solvent permeation preventing layer and higher in hydrophilicity than the hydrophobic solvent permeation preventing layer;
• wherein a surface of the hydrophobic solvent permeation preventing layer side of the substrate is flat;
• a blanket including a second substrate that contains an elastic body swellable in a solvent and includes a hydrophilic region on the surface, and disposed so as to be capable of contacting with the printing plate;
• a coating machine for coating the hydrophilic region side surface of the blanket with an ink;
• a mounting member for printing that mounts a substrate for printing and is disposed so as to be capable of contacting with the blanket;
• and
• a mounting member for cleaning that mounts a substrate for cleaning and is disposed so as to be capable of contacting with the printing plate;
• wherein the hydrophilic region of the blanket is higher in hydrophilicity than the hydrophobic solvent permeation preventing layer of the printing plate, and is equal to or lower in hydrophilicity than the hydrophilic portion.