| 摘要 |
A double container (11) comprising an outer container (13) having flexibility and communicating with the outside air, and an inner bag (14) holding contents, with a space (20) defined between the outer container (13) and inner bag (14), wherein the contents include a component which generates gas by decomposition and a volatile component and the inner bag (14) has permeability to decomposition gases evolved by the decomposing component of the contents. The decomposition gases evolved permeate through the inner bag (14) without difficulty for easy discharge into the outside while the volatile gases evolved from the volatile components are allowed to stay in the space (20) on the outer side of the inner bag (14), making it difficult for the newly evolved volatile gases to permeate through the inner bag (14), thereby limiting dispersion of the volatile gases and effectively suppressing deterioration of hairdye.
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