Development of Improved Fiber and Web Charateristics in Selected Critical Nonwoven Technologies

9815568 batra这个项目是在北卡罗莱纳州立大学非织造布合作研究中心（NCRC）的领导下，作为美国国家科学基金会研究中心-小企业合作研发计划的一部分进行的。NCRC是由美国国家科学基金会成立的S/IUCRC。这项研究旨在与小企业开展合作研究项目。NCRC的一名正式成员和一名附属机构加入了调查人员，开展了两个独立的项目。其中之一（Goulston Technologies, Inc.）试图了解在纤维上应用自旋整理剂及其最终分布所涉及的基本机制。由于短纤维没有合适的纺纱整理就不能加工成织物，这是一个非常关键的问题，对该行业的经济效益有重大影响。另一个项目涉及熔吹，这是一种快速发展的技术，用于制造各种非织造布。这里的研究（Blax Fiberfilm, Inc.）寻求优化熔吹模具的设计，能够以最小的直径变化生产一系列细纤维，以达到选定的细度，高吞吐量（低能源成本）。这种模具具有允许熔喷结构在最终织物厚度上具有不同孔隙度的工程潜力。这种孔隙率分布的控制导致了高效和经济的织物，可用于石油和天然气过滤，以及生物材料的过滤/分馏。

9815568BatraThis project is carried out as a part of the NSF Research Centers -Small Firms Collaborative R&D initiative, under the leadership of the Nonwovens Cooperative Research Center (NCRC) at North Carolina State University. NCRC is a S/IUCRC established by the National Science Foundation.This study seeks to develop collaborative research projects with small businesses. A full member and an affiliate of NCRC has joined investigators to carry out two separate projects.One of them (Goulston Technologies, Inc.) seeks to understand the fundamental mechanisms involved in application of spin-finishes to fibers and its eventual distribution of the fibers. Inasmuch as staple fibers cannot be processed into fabrics without suitable spin-finishes, this is a very critical issue and has substantial impact on the economics of the industry.The other project relates to melt blowing, a fast growing technology for making a wide variety of nonwoven fabrics,. The research here (Blax Fiberfilm, Inc.) seeks to optimize the design of melt-blowing dies capable of producing a range of course-to-fine fibers with minimal diametric variations, for the selected degree of fineness, at high throughputs (low energy costs). Such dies have the potential of permitting engineering of melt-blown structures with varying levels of porosity across the thickness of the final fabric. Such control of porosity distribution leads to highly efficient and economical fabrics useful for oil and gas filtration, and filtration/fractionation of biological materials.