公开(公告)号：US11421386B2

公开(公告)日：2022-08-23

申请号：US16498362

申请日：2017-07-21

申请人： Guangzhou Huadu Lianhua Packing Material Co., Ltd.

发明人： Bifeng Chen ,  Kanglei Chen

IPC分类号： D21H23/50 ,  A24F25/02 ,  D21H27/10

摘要： A moisture-retaining, quality-preserving and aroma-keeping vacuum aluminum-plated inner liner for cigarettes and method of making the inner liner, the inner liner including a raw paper layer, an upper surface of the raw paper layer being provided with a hot melt sealing layer, a water-based sealing layer, a vacuum aluminum-plated layer, and a water-based protective layer, where a lower surface of the raw paper layer is provided with a moisture returning layer and the inner liner further includes a moisture-retaining and aroma-keeping layer disposed on the upper surface or the lower surface of the raw paper layer.

公开(公告)号：US20200032457A1

公开(公告)日：2020-01-30

申请号：US16498362

申请日：2017-07-21

申请人： Guangzhou Huadu Lianhua Packing Material Co., Ltd.

发明人： Bifeng Chen ,  Kanglei Chen

IPC分类号： D21H23/50 ,  D21H27/10 ,  A24F25/02

摘要： A moisture-retaining, quality-preserving and aroma-keeping vacuum aluminum-plated inner liner for cigarettes and method of making the inner liner, the inner liner including a raw paper layer, an upper surface of the raw paper layer being provided with a hot melt sealing layer, a water-based sealing layer, a vacuum aluminum-plated layer, and a water-based protective layer, where a lower surface of the raw paper layer is provided with a moisture returning layer and the inner liner further includes a moisture-retaining and aroma-keeping layer disposed on the upper surface or the lower surface of the raw paper layer.