Preparation of PFAS-free oil-resistant paper using a lignin-based resin

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life Pub Date : 2025-10-04 DOI:10.1016/j.fpsl.2025.101640

Shahab Saedi , Zhongjin Zhou , Mi Li , Siqun Wang

{"title":"Preparation of PFAS-free oil-resistant paper using a lignin-based resin","authors":"Shahab Saedi , Zhongjin Zhou , Mi Li , Siqun Wang","doi":"10.1016/j.fpsl.2025.101640","DOIUrl":null,"url":null,"abstract":"<div><div>Per- and polyfluoroalkyl substances (PFAS) are widely used in paper-based, molded-pulp tableware and food containers to impart oil-resistant characteristics. Due to the risk associated with their accumulation in the human body and related health problems, the demand is rising for replacing PFAS with safe and environmentally friendly alternatives. In this work, for the first time, we successfully prepared oil-resistant papers using a lignin-based, formaldehyde-free resole resin. We produced a lignin-based resin using Kraft lignin and glyoxal. Regular folder papers were coated with different thicknesses (30, 60, 90, and 120 µm) of prepared resin. They dried in air and then pressed at various temperatures (140, 160, and 180 °C) for different durations (15, 30, 60, 120, and 240 s). Our results indicate that regardless of pressing time and temperature, coating paper with a suitable amount of resin can effectively block oil penetration and meet the industry's requirements. When 120 µm of prepared resin is used, the coated paper can block the hot oil (65 °C) for more than 40 min and bring kit number into 12.</div></div>","PeriodicalId":12377,"journal":{"name":"Food Packaging and Shelf Life","volume":"52 ","pages":"Article 101640"},"PeriodicalIF":10.6000,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Packaging and Shelf Life","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214289425002108","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"FOOD SCIENCE & TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

Per- and polyfluoroalkyl substances (PFAS) are widely used in paper-based, molded-pulp tableware and food containers to impart oil-resistant characteristics. Due to the risk associated with their accumulation in the human body and related health problems, the demand is rising for replacing PFAS with safe and environmentally friendly alternatives. In this work, for the first time, we successfully prepared oil-resistant papers using a lignin-based, formaldehyde-free resole resin. We produced a lignin-based resin using Kraft lignin and glyoxal. Regular folder papers were coated with different thicknesses (30, 60, 90, and 120 µm) of prepared resin. They dried in air and then pressed at various temperatures (140, 160, and 180 °C) for different durations (15, 30, 60, 120, and 240 s). Our results indicate that regardless of pressing time and temperature, coating paper with a suitable amount of resin can effectively block oil penetration and meet the industry's requirements. When 120 µm of prepared resin is used, the coated paper can block the hot oil (65 °C) for more than 40 min and bring kit number into 12.

查看原文本刊更多论文

木质素基树脂制备不含pfas的耐油纸

全氟烷基和多氟烷基物质（PFAS）广泛用于纸基、模塑纸浆餐具和食品容器中，以赋予其耐油特性。由于它们在人体内积累的风险和相关的健康问题，用安全和环境友好的替代品取代全氟磺酸的需求正在增加。在这项工作中，我们首次成功地使用木质素为基础的无甲醛溶解树脂制备了耐油纸。我们用卡夫木质素和乙二醛生产木质素基树脂。常规文件夹纸涂上不同厚度的树脂（30、60、90和120 µm）。它们在空气中干燥，然后在不同温度（140、160和180°C）下按压不同的持续时间（15、30、60、120和240 s）。结果表明，无论压印时间和压印温度如何，在涂布纸上添加适量的树脂都能有效地阻断油的渗透，达到行业要求。当使用120 µm制备的树脂时，铜版纸可以阻挡热油（65°C） 40 min以上，试剂盒数量为12。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Food Packaging and Shelf Life Agricultural and Biological Sciences-Food Science

CiteScore

14.00

自引率

8.80%

发文量

214

审稿时长

70 days

期刊介绍： Food packaging is crucial for preserving food integrity throughout the distribution chain. It safeguards against contamination by physical, chemical, and biological agents, ensuring the safety and quality of processed foods. The evolution of novel food packaging, including modified atmosphere and active packaging, has extended shelf life, enhancing convenience for consumers. Shelf life, the duration a perishable item remains suitable for sale, use, or consumption, is intricately linked with food packaging, emphasizing its role in maintaining product quality and safety.