{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T06:07:19Z","timestamp":1788934039288,"version":"build-2803163510"},"reference-count":25,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T00:00:00Z","timestamp":1788912000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Chem."],"abstract":"<jats:p>\n                    To ensure stable quality of colored cigarette paper dyed with natural dyes, real-time kinetic data of dye adsorption onto cellulosic fibers remains insufficient due to limitations of traditional offline sampling methods. In this work, brown natural dye was used as the adsorbate, and an online UV-Vis spectral monitoring system was developed to achieve continuous, non-destructive detection of the full adsorption process without intermittent sampling. The effects of initial dye concentration and fiber type on the adsorption behavior and mechanism were systematically investigated. All experiments were conducted at 20\u00a0\u00b0C with a pulp consistency of 0.2% (w\/v), and the initial dye concentration ranged from 10 to 80\u00a0mg\/L. Pseudo-first-order (PFO) was applied for data fitting. The adsorption process exhibits two successive stages: a water absorption-swelling induction period and a dye adsorption stage. A competitive adsorption mechanism between water molecules and dye macromolecules on fiber surfaces is proposed to explain the induction period. The induction time decreases exponentially with increasing initial dye concentration, following (y = 6,998*e\n                    <jats:sup>\u22120<\/jats:sup>\n                    \u00b7\n                    <jats:sup>047<\/jats:sup>\n                    \u02e3) with (R\n                    <jats:sup>2<\/jats:sup>\n                    = 0.987). Within 30\u201380\u00a0mg\/L, the equilibrium adsorption capacity (q\n                    <jats:sub>e<\/jats:sub>\n                    ) increases linearly with dye concentration. For hemp pulp fiber at 80\u00a0mg\/L, (q\n                    <jats:sub>e<\/jats:sub>\n                    ) reaches 1.1184\u00a0mg\/g, the PFO rate constant (k\n                    <jats:sub>1<\/jats:sub>\n                    ) is 0.0012\u00a0s\n                    <jats:sup>-1<\/jats:sup>\n                    with (R\n                    <jats:sup>2<\/jats:sup>\n                    = 0.9980). The PFO model shows better fitting performance for all systems, indicating a diffusion-controlled physisorption process. Hardwood pulp reaches equilibrium at ~1,500\u00a0s with the fastest initial rate, while softwood and hemp pulp require over 10000\u00a0s. This work provides fundamental kinetic data and theoretical support for formula design and process optimization of online dyeing for colored cigarette paper.\n                  <\/jats:p>","DOI":"10.3389\/fchem.2026.1868454","type":"journal-article","created":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T05:50:13Z","timestamp":1788933013000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Study on the adsorption kinetics of natural dye by colored paper fiber raw material"],"prefix":"10.3389","volume":"14","author":[{"given":"Tinghui","family":"Zhang","sequence":"first","affiliation":[{"name":"School of Chemical Engineering, Guizhou Minzu University","place":["Guiyang, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenhua","family":"Yu","sequence":"additional","affiliation":[{"name":"Technology Center, China Tobacco Yunnan Industrial Co., Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuwei","family":"Guo","sequence":"additional","affiliation":[{"name":"Kunming Cigarette Factory, Hongyunhonghe Tobacco (Group) Co. Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chunhua","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Fine Arts, Guizhou Minzu University","place":["Guiyang, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Baoshan","family":"Yue","sequence":"additional","affiliation":[{"name":"Technology Center, China Tobacco Yunnan Industrial Co., Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiao","family":"Xie","sequence":"additional","affiliation":[{"name":"Technology Center, China Tobacco Yunnan Industrial Co., Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhihua","family":"Liu","sequence":"additional","affiliation":[{"name":"Technology Center, China Tobacco Yunnan Industrial Co., Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Wang","sequence":"additional","affiliation":[{"name":"Technology Center, China Tobacco Yunnan Industrial Co., Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Han","family":"Zheng","sequence":"additional","affiliation":[{"name":"Technology Center, China Tobacco Yunnan Industrial Co., Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying","family":"Zhang","sequence":"additional","affiliation":[{"name":"Technology Center, China Tobacco Yunnan Industrial Co., Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tingting","family":"Yu","sequence":"additional","affiliation":[{"name":"Technology Center, China Tobacco Yunnan Industrial Co., Ltd.","place":["Kunming, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yadian","family":"Xie","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Guizhou Minzu University","place":["Guiyang, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Dai","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Guizhou Minzu University","place":["Guiyang, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,9,9]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"353","DOI":"10.1007\/s10450-020-00258-9","article-title":"Kinetics of liquid phase batch adsorption experiments","volume":"27","author":"Brandani","year":"2021","journal-title":"Adsorption"},{"key":"B2","doi-asserted-by":"publisher","first-page":"46","DOI":"10.11980\/j.issn.0254-508X.2017.04.009","article-title":"Effect of the proportion of Hemp pulp in cigarette paper on cigarette sensory quality","volume":"36","author":"Chen","year":"2017","journal-title":"China Pulp and Pap."},{"key":"B3","doi-asserted-by":"publisher","first-page":"31","DOI":"10.11980\/j.issn.0254-508X.2018.11.006","article-title":"Effect of different proportions of wood pulps on the physical characteristics of cigarette and ash integration of burning cigarette","volume":"37","author":"Gu","year":"2018","journal-title":"China Pulp and Pap."},{"key":"B4","doi-asserted-by":"publisher","first-page":"865","DOI":"10.1021\/acsestengg.1c00010","article-title":"Adsorption of gaseous mercury for engineering optimization: from macrodynamics to adsorption kinetics and thermodynamics","volume":"1","author":"Hong","year":"2021","journal-title":"ACS ES&T Eng."},{"key":"B5","unstructured":"Huang\n              M.\n            \n          \n          Nanjing (Jiangsu Province), China\n          Nanjing Forestry University\n          Pilot Production of Hemp-Blended Cigarette Paper\n          \n          2005"},{"key":"B6","doi-asserted-by":"publisher","first-page":"13","DOI":"10.12326\/j.2096-9694.2022076","article-title":"Research progress in lignocellulose-based packaging materials","volume":"36","author":"Jiang","year":"2022","journal-title":"Chin. J. Wood Sci. Technol."},{"key":"B7","doi-asserted-by":"publisher","first-page":"33","DOI":"10.13472\/j.ppm.2014.11.009","article-title":"Analysis of PFI refining characteristics of wood pulp fibers for cigarette paper production","volume":"33","author":"Kuang","year":"2014","journal-title":"Pap. Pap. Mak."},{"key":"B8","doi-asserted-by":"publisher","first-page":"105","DOI":"10.3969\/j.issn.0253-2417.2024.03.013","article-title":"Enhancement of eucalyptus pulp fiber reactivity through PFI refining pretreatment: a mechanistic Study","volume":"44","author":"Lin","year":"2024","journal-title":"Chem. Industry For. Prod."},{"key":"B9","doi-asserted-by":"publisher","first-page":"284","DOI":"10.1515\/cttr-2015-0016","article-title":"Effect of pore structure of cigarette paper on the yield of carbon monoxide in mainstream smoke during cigarette burning","volume":"26","author":"Luo","year":"2015","journal-title":"Beitr\u00e4ge zur Tabakforschung International\/Contributions Tob. Res."},{"key":"B10","author":"Ma","year":"2015"},{"key":"B11","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1007\/s10570-024-06168-1","article-title":"The role of fibre bonds in permanent curl of paper and how it is affected by crosslinking","volume":"31","author":"Maa\u00df","year":"2024","journal-title":"Cellulose"},{"key":"B12","doi-asserted-by":"publisher","first-page":"100333","DOI":"10.1016\/j.jcomc.2022.100333","article-title":"Turning waste plant fibers into advanced plant fiber reinforced polymer composites: a comprehensive review","volume":"10","author":"Parameswaranpillai","year":"2023","journal-title":"Compos. Part C. Open Access"},{"key":"B13","first-page":"105","article-title":"The role and research progress of colored cigarette paper","volume":"30","author":"Peng","year":"2014","journal-title":"Guangxi J. Light Industry"},{"key":"B14","doi-asserted-by":"publisher","first-page":"4696","DOI":"10.3390\/molecules27154696","article-title":"Influence of nanocellulose structure on paper reinforcement","volume":"27","author":"Perdoch","year":"2022","journal-title":"Molecules"},{"key":"B15","doi-asserted-by":"publisher","first-page":"126","DOI":"10.15376\/biores.4.1.126-141","article-title":"The effect of hardwood fiber morphology on the hygroexpansivity of paper","volume":"4","author":"Pulkkinen","year":"2009","journal-title":"BioResources"},{"key":"B16","doi-asserted-by":"publisher","first-page":"769","DOI":"10.1016\/j.carbpol.2013.09.101","article-title":"A review on engineering of cellulosic cigarette paper to reduce carbon monoxide delivery of cigarettes","volume":"101","author":"Shen","year":"2014","journal-title":"Carbohydr. Polymers"},{"key":"B17","doi-asserted-by":"publisher","first-page":"1855","DOI":"10.1007\/s10570-023-05683-x","article-title":"Relationship between chemical and mechanical degradation of aged paper: fibre versus fibre\u2013fibre bonds","volume":"31","author":"Vibert","year":"2024","journal-title":"Cellulose"},{"key":"B18","doi-asserted-by":"publisher","first-page":"27","DOI":"10.11980\/j.issn.0254-508X.2015.09.006","article-title":"Preparation of microcapsule for color cigarette paper","volume":"34","author":"Wang","year":"2015","journal-title":"China Pulp and Pap."},{"key":"B19","volume-title":"Development and Production Practices of Hemp-Blended Cigarette Paper","author":"Wei","year":"2022"},{"key":"B20","doi-asserted-by":"publisher","first-page":"68","DOI":"10.3969\/j.issn.1004-1168.2009.05.040","article-title":"Research and development of colored cigarette paper","volume":"22","author":"Xiang","year":"2009","journal-title":"Yunnan Sci. Technol. Manag."},{"key":"B21","doi-asserted-by":"publisher","first-page":"5","DOI":"10.3969\/j.issn.1002-0861.2009.05.001","article-title":"Research and application of brown cigarette paper","volume":"5","author":"Yang","year":"2009","journal-title":"Tob. Sci. and Technol."},{"key":"B22","doi-asserted-by":"publisher","first-page":"17","DOI":"10.13472\/j.ppm.2021.05.006","article-title":"Preparation and properties of natural-colored cigarette paper. Paper and paper making","volume":"40","author":"Zhang","year":"2021"},{"key":"B23","doi-asserted-by":"publisher","first-page":"13","DOI":"10.3969\/j.issn.1674-5469.2024.02.002","article-title":"Overview of the performance and functionalization of cigarette paper","volume":"46","author":"Zhang","year":"2024","journal-title":"Pap. Mak. Fiber Mater."},{"key":"B24","doi-asserted-by":"publisher","first-page":"012017","DOI":"10.1088\/1742-6596\/2044\/1\/012017","article-title":"Study on ash gray and ash condensation index evaluation during combustion of medium cigarettes","volume":"2044","author":"Zheng","year":"2021","journal-title":"J. Phys. Conf. Ser."},{"key":"B25","doi-asserted-by":"publisher","first-page":"1097","DOI":"10.1007\/s10973-011-1354-7","article-title":"The pyrolysis of cigarette paper under the conditions that simulate cigarette smouldering and puffing","volume":"104","author":"Zhou","year":"2011","journal-title":"J. Therm. Analysis Calorim."}],"container-title":["Frontiers in Chemistry"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fchem.2026.1868454\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T05:50:23Z","timestamp":1788933023000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fchem.2026.1868454\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,9]]},"references-count":25,"alternative-id":["10.3389\/fchem.2026.1868454"],"URL":"https:\/\/doi.org\/10.3389\/fchem.2026.1868454","relation":{},"ISSN":["2296-2646"],"issn-type":[{"value":"2296-2646","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,9]]},"article-number":"1868454"}}