-
公开(公告)号：US12131893B1
公开(公告)日：2024-10-29
申请号：US18497574
申请日：2023-10-30
发明人： Ruizhi Zhu , Xiaoxi Si , Yanqun Xu , Zhihua Liu , Ji Yang , Wei Jiang , Chunbo Liu , Fengmei Zhang , Zhenjie Li , Shiyun Tang
CPC分类号： H01J49/0036 , G01N1/10 , G01N30/8631 , G01N30/8679 , H01J49/425 , G01N2001/1006 , G01N2030/027 , G16C20/20 , G16C20/30
摘要： A method of identifying tobacco carbonyl components using non-targeted mass spectrometry is disclosed, which includes the following steps: (1) preparing a tobacco sample extract; (2) derivatizing (part of) the sample/extract with 2,4-dinitrophenylhydrazine (DNPH); (3) derivatizing (another part of) the sample/extract with DNPH-d3; (4) mixing the derivatized tobacco samples; (5) preparing blank samples; (6) performing ultra performance liquid chromatography (UPLC) and ion trap (Orbitrap) high resolution mass spectrometry (HRMS) on the (derivatized) tobacco samples; (7) processing the LC-MS data; (8) filtering the mass spectrometric characteristic data to retain final chromatographic peaks; and (9) structurally annotating or identifying the retained final chromatographic peaks to obtain the tobacco carbonyl components. The method quickly removes noise or interfering components in the original data set by multiple filtering of the mass spectrometry characteristic data, and enables obtaining composition information of aldehyde and ketone chemical components in cigarettes.
-
公开(公告)号：US11320365B2
公开(公告)日：2022-05-03
申请号：US17293924
申请日：2020-12-30
发明人： Ji Yang , Zhihua Liu , Chunbo Liu , Ruizhi Zhu , Xiaoxi Si , Shiyun Tang , Fengmei Zhang , Wei Jiang , Zhenjie Li
摘要： A determination method for lip sticking force of cigarette tipping paper is provided. The artificial saliva is used to clamp the tipping paper and the artificial mouth skin that are bonded between two jigs, respectively. The two jigs move relative to each other. Force changes during the test are collected through a force sensor and a displacement sensor. The maximum debonding force obtained by the test is divided by the sticking area of the tipping paper and the artificial mouth skin to obtain the lip sticking force of the cigarette tipping paper per unit area. The present invention can accurately quantify the sticking force of the cigarette tipping paper to lips, can well avoid subjective factor influence and difference characterization brought by traditional personal sensory smoking evaluation, is more objective, efficient, has good repeatability, high sensitivity and simple operation.
-
公开(公告)号：US11281823B2
公开(公告)日：2022-03-22
申请号：US17292459
申请日：2020-12-30
发明人： Ji Yang , Zhihua Liu , Chunbo Liu , Ruizhi Zhu , Tao Zhang , Xiaoxi Si , Fengmei Zhang , Pei He , Wei Jiang , Zhenjie Li , Zhongbi Su
IPC分类号： G01N19/04 , A24C5/34 , G06F119/14 , G06F30/20 , G06F111/10
摘要： The present invention relates to a prediction model for a lip sticking force of a cigarette tipping paper, a construction method and a prediction method thereof, which belongs to the technical field of analysis and detection. In the method, the stepwise regression analysis is performed on the lip sticking force and values of the dynamic friction coefficient and the grammage of the cigarette tipping paper to obtain a model for predicting the lip sticking force of the cigarette tipping paper. When checking the accuracy of the model, it is found that the predicted value and the measured value basically fall near the 1:1 line, R2 index is 0.99, and the normalized root mean square error (nRMSE) is 2.64%. The present invention provides a method capable of quickly and simply quantifying a sticking force of the cigarette tipper paper to lips.
-
公开(公告)号：US11781968B2
公开(公告)日：2023-10-10
申请号：US18166125
申请日：2023-02-08
发明人： Ruizhi Zhu , Ji Yang , Zhijiang Yin , Zhihua Liu , Kai Wang , Yanqun Xu , Xiaoxi Si , Chunbo Liu , Fengmei Zhang , Wei Jiang , Zhenjie Li
摘要： A device for a cigarette tipping paper anti-adhesion test is disclosed. The device includes the following components: an upper cover (1), a plurality of upper cover semi-cylinders (11) inside the upper cover, having the same radius and arranged in parallel, and a box (2) with a plurality of holes (211) on the box upper surface (21), connected with the inner cavity of the box (2). Each upper cover semi-cylinder has a cross-section with a bow shape. The side wall of the box (2) also has an opening (22). A method for testing anti-adhesion of the cigarette tipping paper using the device is also disclosed. The present device can qualitatively and quantitatively simulate adhesion of tipping paper in various conditions.
-
公开(公告)号：US11591496B2
公开(公告)日：2023-02-28
申请号：US17834428
申请日：2022-06-07
发明人： Ji Yang , Zhihua Liu , Ruizhi Zhu , Chunbo Liu , Nengjun Xiang , Pei He , Xiaoxi Si , Fengmei Zhang , Shiyun Tang , Wei Jiang , Zhenjie Li , Zhongbi Su , Chen Yang , Kunming Jiang
IPC分类号： C09J7/29 , C09J7/38 , C09J11/08 , C09J11/04 , D21H19/82 , D21H19/12 , D21H19/60 , A24C5/47 , A24C5/00 , A24D3/04 , A24D1/02
摘要： A non-sticking lip tipping paper is disclosed that includes a base paper, a color layer and a surface coating. The color layer is formed by printing and drying a color ink on the base paper; the surface coating includes a water-based glue and is coated thereon after drying the color layer. The water-based glue includes the following components by weight: 30-65 parts of a modified water-based resin solution, 10-20 parts of water, 8-15 parts of ethanol, and 5-12 parts of a water-based additive. The water-based additive is a mixture of a wax emulsion and magnesium silicate in a weight ratio of 1:5. A preparation method and a method of applying the non-sticking lip tipping paper are also disclosed.
-
-
-
-
搜索结果
5 条记录 (耗时 0.014 秒)
