VALVE SYSTEM FOR FORMULA CARTRIDGE
    13.
    发明申请

    公开(公告)号:US20210196021A1

    公开(公告)日:2021-07-01

    申请号:US17133110

    申请日:2020-12-23

    Applicant: L'Oreal

    Abstract: A valve system comprises: a valve body; a valve cap; and a valve plug between the valve body and valve cap is compressed radially and axially, and a central bore extends wholly through the valve body and valve cap and partially through the valve plug. The valve system is welded to a packet which can contain a hair color formula. One or more of the packets are then used in a cartridge compatible with a dispensing device.

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