Wet Laying Nonwoven Using Natural Cellulosic Fibers and Their Blends: Process and Technical Applications. A Review

ABSTRACT

Wet laying is an emerging technique for the production of nonwoven using short natural cellulosic fibers and their blends unlike other nonwoven techniques that utilize chemicals and require a particular length of fibers for processing into nonwoven. The steps involved in wet laying are dispersion, deposition, and consolidation. Uniform dispersion is the key to attain defect-free nonwovens in web laying. It is similar to that of papermaking process with the difference in fiber length and density of the fibers in the process. The quality of the dispersion depends on material parameters such as fiber length, surfactant, nature of fibers, and linear density of the fibers and machine parameters such as dispersion time and mechanical agitation. The present paper summarizes the material and process parameters required for wet laying in detail along with the potential application of wet-laid nonwovens.

摘要

湿敷是一种新兴的技术，用于生产使用短天然纤维素纤维及其混合物的无纺布技术，不同于其他使用化学品和需要特殊长度的纤维加工成无纺布的技术. 湿敷工作的步骤包括分散、沉积和巩固. 均匀分散是网铺设中实现无缺陷无纺布的关键。它与造纸工艺相似，工艺中纤维长度和密度存在差异. 色散的质量取决于材料参数，如纤维长度、表面活性剂、纤维性质、纤维线性密度以及分散时间和机械搅拌等机器参数. 本文详细总结了湿铺所需的材料和工艺参数，以及湿布无纺布的潜在应用.

KEYWORDS:

• Dispersion
• machine and process parameters
• nonwoven
• paper making
• short fibers
• wet lay

关键词:

• 色散
• 机器和工艺参数
• 无纺布
• 造纸
• 短纤维
• 湿铺

Additional information

Funding

We have not received any financial support from any funding sources for this work.