Signalling and repelling water soluble powder container.

摘要

The container (1) comprises an inner closed powder holding permeable bag (2) and an outer impermeable envelope (8), to the permeable bag there being coupled the two ends of a plastics material band (5) adapted to define a suspension ring member projecting from the outer impermeable envelope (8) as this latter is thermoseled (11, 12, 13).