Pressure sensitive adhesive particle and method of producing printed matter

A pressure sensitive adhesive particle comprising:

• a styrene resin;
• and
• a (meth)acrylate resin,
• wherein the styrene resin is derived from styrene resin polymerization components, the styrene resin polymerization components including styrene and at least one selected from the group consisting of 2-ethyl hexyl acrylate and n-butyl acrylate,
• wherein the (meth)acrylate resin is derived from alkyl (meth)acrylate polymerization components, the alkyl (meth)acrylate polymerization components including 2-ethyl hexyl acrylate and n-butyl acrylate,
• a weight proportion of the alkyl (meth)acrylate polymerization components to a total polymerization components of the (meth)acrylate resin is 90% by weight or more,
• the pressure sensitive adhesive has two glass transition points,
• a difference between a lowest glass transition temperature and a highest glass transition temperature of the pressure sensitive adhesive is 30° C. or higher,
• a weight ratio among the 2-ethyl hexyl acrylate and n-butyl acrylate of the alkyl (meth)acrylate polymerization components of the (meth)acrylate resin is from 80:20 to 20:80,
• the pressure sensitive adhesive particle includes:
• a core portion that contains the styrene resin and the (meth)acrylate resin;
• and
• a shell layer that covers the core portion and contains the styrene resin,
• a glass transition temperature of the (meth)acrylate resin is −10° C. or lower,
• the core portion comprises:
• a sea phase that contains the styrene resin;
• and
• an island phase that contains the (meth)acrylate resin dispersed in the sea phase, and
• an average diameter of the island phases is from 200 nm to 500 nm.