Effect of Die-cut Adhesive Line Geometry on Bonding Quality of Hard-pack Label Paper for Slim Cigarettes

TAN Shiwei; LU Zhimin; WU Guanyu; JIA Qiaodong; YU Shuiyuan; JIANG Yu; WU Jianjun; SHI Zhifang; ZOU Fan

doi:10.19554/j.cnki.1001-3563.2026.09.028

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (9) : 267-274. DOI: 10.19554/j.cnki.1001-3563.2026.09.028

Automatic and Intelligent Technology

Effect of Die-cut Adhesive Line Geometry on Bonding Quality of Hard-pack Label Paper for Slim Cigarettes

TAN Shiwei¹, LU Zhimin², WU Guanyu³, JIA Qiaodong⁴, YU Shuiyuan^1,*, JIANG Yu¹, WU Jianjun¹, SHI Zhifang¹, ZOU Fan¹

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Abstract

To address the issue of poor bonding quality resulting from variations in die-cut adhesive line geometry of label paper during the high-speed packaging of slim cigarettes, the work aims to investigate the effect of different die-cut adhesive line geometries on bonding quality to achieve enhanced on-machine machinability. Six types of label paper with customized die-cutting processes were prepared. The dynamic contact angle, penetration characteristics, adhesive retention capacity, and peel strength were systematically evaluated, followed by on-machine validation on a ZB416A packaging unit. The label paper with a fish-scale pattern adhesive line exhibited superior performance compared to the dot-pattern adhesive line in terms of dynamic contact angle reduction rate, penetration velocity, adhesive storage capacity, and peel strength, resulting in a significantly decreased rejection rate during machine operation. The fish-scale pattern adhesive line effectively disrupts the dense surface layer of the paper, facilitating adhesive penetration and promoting mechanical interlocking at the interface. This enhancement increases bonding strength and partially compensates for bonding defects attributable to excessive crease stiffness, thereby providing a theoretical foundation for optimizing the high-speed packaging process of slim cigarettes.

Key words

slim hard-pack label paper / die-cut adhesive line geometry / mechanical interlocking / bonding strength / machinability / rejection rate

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TAN Shiwei, LU Zhimin, WU Guanyu, JIA Qiaodong, YU Shuiyuan, JIANG Yu, WU Jianjun, SHI Zhifang, ZOU Fan. Effect of Die-cut Adhesive Line Geometry on Bonding Quality of Hard-pack Label Paper for Slim Cigarettes[J]. Packaging Engineering. 2026, 47(9): 267-274 https://doi.org/10.19554/j.cnki.1001-3563.2026.09.028

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