Fatigue behavior of aramid nonwoven fabrics under hot-press conditions. Part Ⅶ : Effect of needle shape on compressive properties

Nonwovens used as components of laminated cushion materials for multi-daylight press molding are subjected to repeated hot-press fatiguing. Preferred heat-resistant nonwovens show little change in mechanical properties such as tensile and compression after repeated fatiguing. In Part Ⅲ, needle-punched nonwovens had superior recovery from..

Perpendicular laid fabrics of flax, jute and Kenaf fibers

A technology for processing jute, kenaf and flax fibers by perpendicular layering by corded web and through-air thermobonding has been developed, at the Technical University of Liberec. Polyethylene bonding fibers have been selected on the basis of processability, bonding capacity, process security and price. End uses and limitations of t..

Staple fiber cutting today

The nonwoven market has seen an increased se of shorter and shorter cut lengths, with requirements for improved cut-length control. Refinements to the widely-used radial blade cutters include the development of a reliable high-tension control system, improved reel design, a properly-designed tension stand and a cutting load indicator. Sta..

Nonwoven outlook

Recent research on Chinese nonwovens markets and the Asian-Pacific hygienic absorbents industry has yielded a large amount of data on the size and prospects for the roll goods and finished products markets in the Asia-Pacific region. Eight figures summarize 1999 data and show projections for 2004. Spunbonded materials will increase their ..

Apparatus for needling a fiber fleece web

An apparatus for needling a fiber-fleece web has a plurality of needle bars, the drive means thereof being individually associated to the individual needle bars or a group of closely adjoining needle bars which belong to one of a plurality of needling zones, and wherein said drive means are connected to a common control means which enable..

Wet process for manufacturing nonwoven fabric and apparatus therefor

This invention provides a wet process for manufacturing a nonwoven fabric, including the steps of: forming a fibrous web by supplying raw material fibers together with water onto a slope of a net-shaped wire conveyor band running on a plurality of rolls; completely forming a nonwoven fabric over the wire conveyor band by supplying water j..

Bonded woven fabric product and method its manufacture

A woven product comprising a plurality of first threads, and a plurality of second threads, wherein contact portions provided along each first thread contact respective contact portions provided along each second thread, wherein further each first thread is bonded to each second thread at the respective contact portions.

Forecasting the strength of needle fabrics from manmade fibres (Russian)

A study is made of four needled polyester fabrics produced from 0.82 tex fibres with areal densities of 300, 600, 900 and 1200 g/m2. The indications are that, at high fabric weights, it is possible to forecast the tensile properties, including the breaking strength.

Fleissner : Newly developed machinery for man-made fibre and nonwovens production

Some of the equipment from Fleissner for man-made fibre and nonwovens production is presented, with special reference to the AquaJet spunlace system for the hydroentangling of nonwovens in working widths of 5000 mm at a rate of 250 m/min and a pressure of up to 300 bar.

High-speed carding machines and airlay cards (German) (High-speed-krempeln und airlay-krempeln)

The Hyperspeed card having a width of 4 m and a long-term production rate of 300 m/min is described. Brief details are also given of the Turbo-Card for the production of airlaid nonwovens. Units for spunlacing and needling are considered.