Photocurable ink composition, ink jet recording method, and recording matter

Abstract

An ink jet recording method having the steps of discharging a photocurable ink composition comprising a monomer expressed by CH 2 ═CR 1 —COO—R 2 —O—CH═CH—R 3 (R 1 denotes a hydrogen atom or a methyl group, R 2 denotes an organic residue having a carbon number of 2 to 20, and R 3 denotes a hydrogen atom or an organic residue having a carbon number of 1 to 11), irradiating said photocurable ink composition at an irradiating intensity is 70 mW/cm 2 or more using an ultraviolet ray irradiating apparatus is provided herewith.

1 .- 8 . (canceled) 
     
     
         9 . An ink jet recording method comprising:
 discharging a photocurable ink composition comprising a monomer having the formula
   CH 2 ═CR 1 —COO—R 2 —O—CH═CH—R 3  
 
   wherein R 1  denotes a hydrogen atom or a methyl group, R 2  denotes an organic residue having 2 to 20 carbon atoms, and R 3  denotes a hydrogen atom or an organic residue having 1 to 11 carbon atoms; and   a photo-polymerization initiator; and   
       irradiating said photocurable ink composition at an irradiating intensity is 70 mW/cm 2  or more using an ultraviolet ray irradiating apparatus. 
     
     
         10 . The recording method of  claim 9 , wherein irradiating comprising irradiating at wavelength in a range of 350 to 450 nm. 
     
     
         11 . The recording method of  claim 9 , wherein the ultraviolet ray irradiating apparatus is a ultraviolet ray light emitting diode. 
     
     
         12 . The recording method of  claim 9 , wherein the monomer is 2-(vinyloxyethoxy)ethyl acrylate, 2-(vinyloxyethoxy)ethyl methacrylate, or a combination thereof. 
     
     
         13 . The recording method of  claim 9 , wherein the photocurable ink composition comprise 20 to 90% by weight monomer. 
     
     
         14 . The recording method of  claim 9 , wherein the photocurable ink composition has a viscosity of less than 25 mPa·s at 20° C. 
     
     
         15 . The recording method of  claim 9 , wherein the photo-polymerization initiator is an α-aminoketone, an α-hydroxyketone, an acylphosphine oxide, or a combination thereof. 
     
     
         16 . The recording method of  claim 9 , wherein the photocurable ink composition comprises 1 to 20% by weight photo-polymerization initiator.