文献类型：期刊文献

英文题名：Enhancement of Water-Resistant Water-Based Decorative Paper Casein Ink by Combined Amino Compounds

作者：Liu, Ru[1] Shi, Fulin[1,2] Zhang, Mingchang[1] Dong, Xiaoying[2] Long, Ling[1] Lin, Qiulan[3]

第一作者：刘如

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China; [2] Forestry Institute, Shandong Agricultural University, Shandong, Tai’an, 271018, China; [3] Suofeiya Home Collection Co. Ltd., Guangzhou, 511300, China

年份：2025

外文期刊名：SSRN

收录：EI(收录号：20250301889)

语种：英文

外文关键词：Casein - Contact angle - Driers (materials) - Glues - Gluing - Hydrophilicity - Ink - Paper - Particle size - Stability - Water absorption

摘要：Casein aqueous ink was widely used in the area of paper printing as finishing materials for wooden-based furniture products. However, the water-based ink has poor water resistance limiting the application. In this study, the ink binder of casein was modified with compound of N-methylolacrylamide (NMA), diacetone acrylamide (DAAM), and caprolactam (CPL) to enhance the water resistance, while balancing the glue absorption capacity. The effect of NMA concentration on the performance of casein aqueous ink was also assessed. The modified aqueous inks were roll-coated on the decorative base paper. The results showed that the stability, hydrophilicity and water resistance of the modified casein were significantly enhanced. Therefore, the thus-prepared casein inks showed significant improvements on water stability, water resistance and glue absorption. when the content of NMA was 1.5g, the average particle size and the absolute value of zeta potential of casein were 350 nm and -45 mV, respectively, showing the improved stability in water system. Thus, the surface contact angle of casein was minimal of 34.1°, and the water residual rate was maximal at 72.5%. The maximum residual rate of the modified casein ink was obtained at NMA content of 1.5 g with particle size of 120 nm and zeta potential of – 31 mV, At this time, the the glue uptake of casein ink reached 136%, which was an significant increase of 29.5% uptake compared with the unmodified casein ink. These findings indicate that there is a strong correlation between the stability, water resistance, and hydrophilicity of casein and the stability and water resistance of casein inks, and that modified casein has a great potential for application as a water-based ink joining material for decorative papers. ? 2025, The Authors. All rights reserved.