Spinning for Nonwovens.

Three important nonwoven fabric manufacturing processes that involve melt spinning are the spunbonding, meltblowing, and flashspinning processes. The spunbonding process comprises melt spinning a thermoplastic polymer, collecting continuous filaments on a moving belt to form webs, and binding the filaments in the webs to form a fabric. Me..

부직포용 신형 CA11 카드

ITMA 1995 전시회에서 NSC Group은 Thibeau CA11 소면기를 전시하였다. 이 소면기는 세데니어 섬유를 카딩할 때와 고속에서 고품질의 웹을 얻고자 할 때 이상적인 기계이다. 공급 플레이트는 작업 폭이 4m 이상이 되도록 허용한다. SERVOLAP과 ACE라고 하는 두가지의 입력 (input) 오토레블링 시스템을 이용할 수 있다. SERVOLAP은 광학적 빛을 이용하여 입력 배트의..

Measurements of (and Explanations for) Changes in Permeabilities of Nonwoven Materials.

The resistance to fluid passage of a porous barrier, such as a fibrous sheet, can be a critical performance property for many end use applications. In addition, measurement of the resistance at multiple locations can serve as a quality control monitor for evaluating product uniformity. Because permeability is not a constant property, any ..

Man Made Cellulosic Fibers for Nonwovens.

Courtaulds Fibers Incorporated developed lyocell, a generic manmade cellulose fiber available as two or staple fiber, bright or delustered. Courtaulds manufactures lyocell by dissolving wool pulp in an amine oxide solvent. The extruded filament is a highly crystalline form of cellulose, which results in very high strength fiber, wet or dr..

Composite nonwoven fabric and process producing the same

One of the components of this nonwoven fabric is a voluminous pile of curled fibres or filaments and the other component is a supporting nonwoven fabric bearing or containing fibres which may be reactivated by heating into an adhesive without losing their fibrous structure. The curled pile fibres or filaments are bonded to the surface of ..

Air jet system improves spunbonding

A specialised air jet system is described, developed by Mitsui Petrochemical Industries of Toyo, Japan, for the improved production of spunbonded nonwovens. The system consists of an inlet for receiving filaments extruded from the spinneret, and the filaments are then delivered by compressed air onto the carrier. Filaments can be drawn an..

Automated web inspection ensures highest quality nonwovens

Precise on-line inspection of a nonwoven web's surface during production has proved to be a valuable tool for quality assurance. The inspection system can continously monitor 100％ of the web, detect any defects, record the exact location of each, and record an image of the defect for viewing at any time. The operator can take immediate c..

Measurement of Pore Characteristics in Nonwoven Fabrics Using Image Analysis.

A reserch project utilized image analysis to measure the pore characteristics of nonwoven fabrics. The analysis system comprised a compound microscope, a charged couple display camera, and computer hardware for digitizing the images. The system measured the size (hydrodynamic diameter and opening diameter), shape (roundness, ellipticity, ..

Textile Laminating - Today and Tomorrow.

Manfacturers currently use environmental compatibility as a standard for judging the practicality of textile laminating using hot melt adhesives in the form of powder. Manufacturers require production speed and reliability coupled with flexibility and the ability to meet maximum environmental standards. A simple table compares different l..

'FR'-Friend or Foe to Nonwovens.

Recent reports sponsored by the insurance industry have warned of the potential flammability of nonwoven roll goods and emphasized the importance of fire retardancy. Factory Mutual Engineering and Research published a report sponsored by Allendale Insurance, Arkwright Protection Mutual Insurance, and Factory Mutual International that desc..