Products e.g. hair color and hair color oxidizing agent, contacting device for treating e.g. skin, has channel between portions of sheets such that it is opened in response to pressure exerted on compartment walls to cause product passage

摘要

The device has a channel emerging in bags (2, 3) via openings (23, 24). The channel is formed between portions of superposed sheets such that it is opened in response to pressure exerted on walls of a compartment to cause passage of a product in the compartment towards another compartment. The channel and the latter compartment are configured such that the channel closes after arrival of the product into the latter compartment.