Determination of Relevant Process Operation Setting Space for Developing Multifunctional Nonwoven-based Products

Owing to various end-uses and good performance/cost ratio, the multifunctional nonwoven- based products have been significantly developed within a decade. Such products are mostly dedicated to niche or limited markets and are preferably high valued products. Therefore, in order to face the international competition, designers are strongly..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.08.10 I 조회수 : 102

Study of the Influence of Fiber Diameter and Fiber Blending on Liquid Absorption Inside Nonwoven Structures

The purpose of this work was to investigate how nonwoven fabrics absorb and diffuse liquids and to define relevant diffusion parameters, with a special focus on the influence of fiber diameter on the diffusion process. The nonwoven structures studied were composed of polyester fibers of different diameters and were manufactured with a dry..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.08.10 I 조회수 : 100

Unsteady-state Liquid Transport in Engineered Nonwoven Fabrics having Patterned Structure

The initial stage of liquid absorption in unsaturated nonwoven fabrics (e.g. dry wipes, absorbent materials and hygiene products) is an unsteady-state fluid flow. For the purpose of the engineering design of these nonwoven products, there is a need to predict the unsteady- state fluid flow in both homogeneous anisotropic nonwoven structur..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.08.10 I 조회수 : 107

Permeability in Engineered Non-woven Fabrics Having Patterned Structure

The patterned non-woven fabric structure is a typical non-homogeneous non-woven fabric and is frequently used as a hygienic medical absorbent material to control fluid transport for directional delivery. In this paper, the characteristics of the structural variation in both strip and point patterned non-woven fabrics are examined, and the..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.08.10 I 조회수 : 105

Preparation of Pure Cellulose Nanofiber via Electrospinning

We describe the preparation of cellulose nanofibrous material directly from cellulose solution via electrospinning. The resulting nanofiber is composed of pure cellulose. The spinning procedure can be performed under ambient conditions at room temperature without post-spun treatment. By mixing drugs with the pre-spun cellulose solution, f..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.08.10 I 조회수 : 75

KC 제품 안전 설명회

안녕하십니까? 평소 KOTITI를 성원해 주시는 고객 여러분의 무궁한 발전을 기원합니다. 최근 한국에서는, 섬유업계뿐만 아니라 모든 공산품 업계에 새로운 바람이 불고 있습니다. 각 제품에 대한 정부의 안전요건이 더욱 강화됨은 물론 기존에 혼재해 있던 다양한 인증 마크를 하나로 통합시킨 KC 마크가 시행되고 있기 때문입니다. 이에 따라 KOTITI에서는 제품안전..

Home | News & Info | 공지사항 I 등록일 : 2011.08.04 I 조회수 : 1728

Analysis of Geometrical Parameters using a CAD System for a 3-D Braided Preform

To estimate the precise mechanical properties of the three-dimensional (3-D) braided composite, a geometric study of a 3-D braided preform was performed. Describing yarn paths using third-order spline curves, which are close to the real pathway of the 3-D braided structure, the unit cells and the representative volume elements were determ..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.08.01 I 조회수 : 205

Investigation of the Water Repellence of Different Experimental and Commercial Coatings for Synthetic Mountaineering Ropes

All manufacturers of synthetic mountaineering ropes provide chemically coated ropes in order to reduce their water uptake in a wet environment. As common static test methods for the investigation of the water repellent behavior of ropes do not move or bend the ropes, the measured water uptakes are usually below about 10%. In this study we..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.08.01 I 조회수 : 279

Application of Stretch-breaking Force Analysis on Optimum Drafting Conditions in Tow-to-yarn Direct Spinning

This study discusses the evaluation of stretch-breaking force and its CV% in the tow-to- yarn direct spinning with 12k oxidized filament tow. We aimed to describe a new method for determining suitable draft conditions in the direct spinning to obtain the best oxidized yarn quality. To correlate the stretch-breaking force and the yarn qual..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.08.01 I 조회수 : 76

Occurrence of a Singular Point in a Bundle Flow System and the Sensitivity of the Bundle Thickness to Perturbations in a Steady State Draft Process

Roll drafting is an important unit operation that transforms fiber bundles into attenuated ones, improving their properties with more efficient material usage. Fibers are thus thrown into a flow field having constraints at both ends incurring layer-to-layer flow shearing, which governs the individual fiber movement. The parameters of the ..

Home | News & Info | KOTITI 라이브러리 | 섬유기술정보 I 등록일 : 2011.07.29 I 조회수 : 76