Ejection liquid, ejection method, method for forming liquid droplets, liquid ejection cartridge and ejection apparatus

摘要

There are provided an ejection liquid that contains at least one of proteins and peptides and can be ejected stably by an ink jet system, and a method and apparatus for ejecting a liquid containing at least one of proteins and peptides using the ejection liquid. A specific amine is added to an aqueous solution of at least one of proteins and peptides to thereby improve the applicability to ejection by the ink jet system.