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Detection Method for Adhesive Thickness of Cigarette Tipping Paper Based on Spectral Confocal
Received:July 05, 2024  
DOI：10.11980/j.issn.0254-508X.2024.12.018
Key Words:cigarette tipping paper  adhesives  thickness  distribution
Fund Project:国家烟草专卖局重大科技项目“烟草行业质量监控大数据构建及应用研究”（110202101080（SJ-04））。
Author NameAffiliationPostcode
YAO Shuangting China Tobacco Zhejiang Industrial Co.， Ltd.， Ningbo， Zhejiang Province， 315504 315504
JIANG Zhicai China Tobacco Zhejiang Industrial Co.， Ltd.， Ningbo， Zhejiang Province， 315504 315504
LI Xiaohui China National Tobacco Quality Supervision and Test Center， Zhengzhou， He’nan Province， 450001 450001
CHAI Wujun China Tobacco Zhejiang Industrial Co.， Ltd.， Ningbo， Zhejiang Province， 315504 315504
XU Yupeng China National Tobacco Quality Supervision and Test Center， Zhengzhou， He’nan Province， 450001 450001
LIU Bo China Tobacco Zhejiang Industrial Co.， Ltd.， Ningbo， Zhejiang Province， 315504 315504
LIN Jiannan China Tobacco Zhejiang Industrial Co.， Ltd.， Ningbo， Zhejiang Province， 315504 315504
XU Hengyu China Tobacco Zhejiang Industrial Co.， Ltd.， Ningbo， Zhejiang Province， 315504 315504
ZHOU Mingzhu China National Tobacco Quality Supervision and Test Center， Zhengzhou， He’nan Province， 450001 450001
DONG Hao* China National Tobacco Quality Supervision and Test Center， Zhengzhou， He’nan Province， 450001 450001
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Abstract:To achieve accurate detection of the adhesive thickness of cigarette tipping paper， a spectral confocal detection system had been established. This system enabled the measurement of the thickness and distribution uniformity of adhesives on the surface of the tipping paper. By comparing the results with those obtained from scanning electron microscopy， the accuracy of the spectral confocal detection method had been further verified. The results showed that the spectral confocal system was capable of precisely capturing subtle differences in the thickness of adhesives in the gluing areas of the same sample. The adhesive thickness of different types of tipping paper had obvious difference， with the measured thickness ranging from 8.7 to 15.1 μm across three types of samples. The heatmaps generated from the spectral confocal detection results offered a visual representation of the distribution of adhesives in the gluing areas of cigarette tipping paper. The coefficient of thickness variation in the gluing areas effectively characterized the uniformity of adhesive distribution in that region， providing a quantitative basis for evaluating the gluing quality.
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