By "research line", he means that the production infrastructure would consist of the smaller "kettle" used to test emulsions for research and development and to perform quality control sampling.

Basically, AgfaPhoto had a 1000L production kettle and a 40L research kettle. Fotoimpex is, apparently, betting that a 40L kettle run day and night for production could be profitable where a 1000L run sporadically would fail to make money.

I'm a fan of APX100 and 400, so I'll be the last one to say it can't work...