パウダー入りの商品を考えていますが､噴口の穴径をどのように選べばよいですか？
We plan to develop a powder product. How can we decide the size of the jet nozzle orifice?

固体微粉末を噴射する粉末エアゾール商品は､パウダーの質にもよりますが､噴口の穴径が小さい穴径では堆積するパウダーによって詰りを生じることがあります。この時は､できるだけ大きい穴径が望ましいものとなります。弊社には汎用品としてパウダー用噴口を揃えています。パウダー入りの商品は､噴口だけでなくバルブ仕様も含めた総合的な仕様選定が必要となります。パウダー入り商品のバルブやボタンは､原液処方に大きく左右されますので､最終的な判断は確認試験によって決まります。ご計画商品を弊社営業にお知らせください。最適なバルブとボタンの仕様を御提案させていただきます。

In powder aerosol products that discharge solid fine powder, a narrow orifice could make the jet nozzle clog due to accumulated powder although this does depend on the quality of the powder. In this case, it is better to have an orifice as wide as possible. We have a powder jet nozzle as one of our standard products. In powdery products, the actuator should be selected from a comprehensive viewpoint by checking not only the jet nozzle orifice but also the valve specifications. Since which valve actuator should be used in powdery products largely depends on the type of content, the final decision is made after results from compatibility tests. Please let us know the details of your planned product. We will suggest the most appropriate specifications of the valve and the actuator.