Patent ID: 9574301
Date: 2017-02-21
CPC Classifications: B41J,D06P,D06Q

Claim:
1. An ink jet etching method, comprising: etching fabric to form a concave and convex gradation in the fabric by using an ink set including first etching ink containing an etching agent to leach fibers that form the fabric, and second etching ink containing the etching agent in which a concentration of the etching agent is lower than a concentration of the etching agent in the first etching ink, wherein etching fabric includes ejecting the first etching ink from two or more nozzle arrays among a plurality of nozzle arrays included in a recording head, and ejecting the second etching ink from at least one other nozzle array among the plurality of nozzle arrays included in the recording head, wherein each of the first etching ink and the second etching ink do not contain a colorant.