Spray gun for enteric coating and process for producing enteric coated preparation

摘要

Provided is an enteric coating technique capable of carrying out enteric coating without using an organic solvent and without causing a spray gun to clog, while keeping an equipment cost low. More specifically, from a spray gun comprising a nozzle (4) for spraying an enteric polymer dispersion and/or solution and a nozzle (5) for spraying a plasticizer solution, these solutions are sprayed simultaneously and separately through the nozzles (4,5). A mixture of these solutions thus obtained during spraying is applied to a preparation. <IMAGE>