Method for production of dispensing devices

摘要

The present invention relates to a process for the production of improved toilet dispensing devices for use in conjunction with a sanitary appliance particularly a toilet, and methods of using the same.

主权项

1. A process for the manufacture of a cageless lavatory dispensing device, which device comprises a hanger having a part thereof adapted to be suspended from a part of a sanitary appliance and a cast solid block comprising one or more chemical constituents which provide a cleaning benefit, which process comprises the steps of:
fluidifying one or more of the constituents forming the cast solid block to form a pourable and/or pumpable castable solid block composition, wherein the castable solid block composition comprises a detersive surfactant selected from one or more of nonionic surfactants, anionic surfactants based on branched alkyl anionic surfactants and/or anionic surfactants based on sarcosinate surfactants; pouring the fluidified castable solid block composition at an elevated temperature into a cavity containing a plate part of hanger, subsequently permitting the poured castable solid block composition to cool from the elevated temperature and solidify, and to form a cast solid block which is sufficiently hard such that it may be removed from the cavity, and, thereafter removing the cooled and hardened cast solid block encasing or enrobing a part of the hanger from the cavity wherein the cast solid block of the cageless lavatory dispensing device retains at least 76.5% wt of its initial mass subsequent to contact with flush water following 38 flush cycles or at least 39.16% wt of its initial mass subsequent to contact with flush water following 39 flush cycles, when mounted in a toilet bowl.