公开(公告)号：US11576421B2

公开(公告)日：2023-02-14

申请号：US17037552

申请日：2020-09-29

申请人： Meiyun Zhang ,  Shunxi Song ,  Xue Jiang ,  Bin Yang ,  Jingyi Nie ,  Jiaojun Tan

发明人： Meiyun Zhang ,  Shunxi Song ,  Xue Jiang ,  Bin Yang ,  Jingyi Nie ,  Jiaojun Tan

IPC分类号： A24B3/14 ,  A24B15/12 ,  A24B15/24 ,  A24B3/18 ,  A24B15/28

摘要： A method for increasing bulkiness of reconstituted tobacco by adding tobacco stem particles includes (1) pulverizing a first portion of tobacco stems to obtain tobacco stem particles; (2) classifying the tobacco stem particles with mesh sieves and selecting the tobacco stem particles with a predetermined mesh size; (3) extracting a second portion of the tobacco stems with water and grinding to form a tobacco stem slurry that has a beating degree of 12-14° SR, and mixing the tobacco stem slurry with tobacco leaves in a weight ratio of 6:4 and grinding to obtaining a tobacco slurry that has a beating degree of 18-20° SR; (4) cutting plant fiber pulp boards and dispersing in water to form a plant fiber pulp; (5) preparing a filler solution that contains 10 wt % of a mineral filler; (6) mixing, rolling and drying to obtain the reconstituted tobacco.

公开(公告)号：US11414817B2

公开(公告)日：2022-08-16

申请号：US17074866

申请日：2020-10-20

申请人： Meiyun Zhang ,  Jiaojun Tan ,  Bin Yang ,  Shunxi Song ,  Jingyi Nie ,  Xue Jiang

发明人： Meiyun Zhang ,  Jiaojun Tan ,  Bin Yang ,  Shunxi Song ,  Jingyi Nie ,  Xue Jiang

IPC分类号： D21H13/26 ,  D21H15/10 ,  D21H17/67 ,  D21H21/08 ,  D06M101/36

摘要： A method of preparing an aramid paper coated with aramid nanofibers includes the following steps: (1) mixing a meta-aramid fibrid slurry and a chopped meta-aramid fiber slurry, filtering, pressing and drying to obtain a meta-aramid paper; (2) mixing potassium hydroxide, deionized water, dimethyl sulfoxide, and para-aramid nanofibers in a container, and stirring to obtain a para-aramid nanofiber coating solution; and (3) applying the para-aramid nanofiber coating solution to a first side of the meta-aramid paper, washing with deionized water, and drying; applying the para-aramid nanofiber coating solution to a second side of the meta-aramid paper, washing with deionized water, and drying; and hot pressing to obtain the aramid paper coated with aramid nanofibers.