Patent ID: 8851624

Claim:
A method of manufacturing a maintenance liquid for an ink-jet device used for forming a pattern, the ink-jet device forming the pattern by discharging a photo-curable composition mainly composed of a polymerizable monomer onto a substrate or a mold having a fine pattern formed thereon, applying the other one of the substrate and the mold onto the photo-curable composition, and irradiating light onto the photo-curable composition held between the substrate and the mold having a fine pattern formed thereon, the method of manufacturing the maintenance liquid comprising: mixing components for composing the maintenance liquid, followed by filtration of the mixed components of the maintenance liquid, wherein the maintenance liquid contains a compound having an ester group and/or an ether group, and a polymerizable monomer; a ratio of area corresponded to polymerization products of the polymerizable monomer in the maintenance liquid is 0.5% or smaller relative to the polymerizable monomer, when measured by gel permeation chromatography (GPC) using a differential refractometer (RI detector); and at least one species of the polymerizable monomer contained in the maintenance liquid is a polymerizable monomer represented by the following formula: wherein R 1 is a hydrogen atom, an alkyl group, or a halogen group, and Z is a group having an aromatic group or a group having an alicyclic hydrocarbon group, wherein the polymerizable monomer is liquid at 25° C., and the viscosity thereof at 25° C. is 500 mPa·s or less.