Discharge printing device and discharge printing method

A discharge printing device, comprising:

• an application unit configured to apply a reducing agent to fabric;
• and
• a contact heating unit configured to subject a reducing agent-applied area to contact heating, wherein
• the discharge printing device satisfies any of the following conditions (a1), (b1), (c1), (d1), and (e1):
• the condition (a1):
• in the contact heating, a heating temperature is 100° C. or more and less than 150° C., and a heating time is 60 seconds or more;
• the condition (b1):
• in the contact heating, a heating temperature is 150° C. or more and less than 170° C., and a heating time is 45 seconds or more;
• the condition (c1):
• in the contact heating, a heating temperature is 170° C. or more, and a heating time is 30 seconds or more;
• the condition (d1):
• the contact heating unit subjects the reducing agent-applied area to contact heating to accelerate a reduction reaction and subjects, after the acceleration of the reduction reaction, the reducing agent-applied area to contact heating to accelerate an oxidation reaction;
• and
• the condition (e1):
• the contact heating unit subjects the reducing agent-applied area to the contact heating to accelerate a reduction reaction, and the discharge printing device further comprises a non-contact heating unit, and the non-contact heating unit subjects, after the acceleration of the reduction reaction, the reducing agent-applied area to non-contact heating to accelerate an oxidation reaction.