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Investigation of the wet strength and handle properties of wood pulp-based wetlaid/spunlace materials with different moisture contents
European Journal of Wood and Wood Products ( IF 2.6 ) Pub Date : 2021-03-13 , DOI: 10.1007/s00107-021-01684-4
Yinjiang Zhang , Kangjie Guo , Haihua Zhan , Zhuanyong Zhou , Jianhan Hong , Xu Meng

Wood pulp-based wetlaid/spunlace (wetlace) materials have become increasingly popular in the field of disposable personal hygiene moist wipes. To achieve excellent products, materials with different short-cut fibers and proportions were fabricated, and the effects of moisture contents on the wet strength and handle properties of the materials were firstly investigated. The results suggest that the wet strength of material composed of regenerated cellulose fibers decreases to about 20% of dry strength, while that made of hydrophilic polyester is only about 8–9% with moisture content of 800%. The softness and smoothness of material consisting of 20% short-cut regenerated cellulose fibers decrease to stable figures at 300% moisture content. The softness parameter was 4.5–5.2, and the smoothness value was 14.5–19, but the stiffness parameter increases to a stable level at 2.6–2.9 mm N−1. Overall, with moisture content of 300%, materials with 20% short-cut fibers achieve the limit of wet strength during use, material made of lyocell has the best wet strength and smoothness, and material made of Viloft possesses the greatest softness and the lowest stiffness.



中文翻译:

不同水分含量的木浆基湿法/水刺丝材料的湿强度和手感性能的研究

在一次性个人卫生湿巾领域,木浆基湿式铺网/水刺(湿式)材料已变得越来越流行。为了获得优良的产品,制造了具有不同短纤维和不同比例的材料,并且首先研究了水分含量对材料的湿强度和手感性能的影响。结果表明,由再生纤维素纤维组成的材料的湿强度降低至干强度的20%,而由亲水性聚酯制成的材料的湿强度仅为8-9%,水分含量为800%。由水分含量为300%的20%短切再生纤维素纤维组成的材料的柔软度和平滑度降低至稳定的数值。柔软度参数为4.5–5.2,平滑度值为14.5–19,-1。总体而言,水分含量为300%,短纤维含量为20%的材料在使用过程中达到了极限的湿强度,莱赛尔(Lyocell)制成的材料具有最佳的湿强度和光滑度,而维洛夫(Viloft)制成的材料具有最大的柔软度和最低的刚性。

更新日期:2021-03-15
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