Filter cloth for air bags

A filter cloth for air bags comprises a woven synthetic fibre fabric comprising a ground weave segment of a single plain or single twill construction, and several high-gas-permeability woven segments formed in the ground weave at a constant distribution density, exhibiting a higher air permeability than that of the ground weave and being ..

Resistant to Fire and to Washing.

Du Pont has developed the Nomex Thermacolor aramid fiber, which is dyeable in yarn packages and used in the production of launderable, low shrinkage jacquard fabrics for aerospace applications. These fabrics are notable for their inherent fire resistant properties that exceed Federal Aviation Administration flammability and smoke standard..

Economic recycling of thermoplastics primary wastes

The reprocessing of thermoplastics production wastes into new high-quality products is discussed. Preparatory treatment depends largely on the end-product. The thinner the product, the greater the need for purity in the regranulate. Appropriate treatment processes and equipment are descibed.

Mechanical and thermal properties of biodegradable polyurethanes derived from sericin

In this study, from the viewpoint of biodegradable polymers and waste disposal, polyurethane (PU) foams and films containing sericin were prepared from sericin and diphenylmethane diisocyanate. Polyethylene glycol and polypropylene glycol were used as a part of the polyol. Mechanical and thermal properties of PU's containing sericin were ..

New Developments in Machines for Industrial Yarns.

Barmag offers a variety of equipment for the production of manmade fibers and yarns. The one step extrusion and drawing lines are suitable for manufacturing polyester nylon, and other industrial yarns for use in tries, air bags, safety belts, and tarpaulins. The production speed of the one step process, which depends on the raw material a..

Delustred wool improves carpet performance

This article reports on a solution to the problem of shading in carpets due to the difference in the light reflection from the ends and sides of the carpet tufts which is due to the lustre of the carpet fibre. A treatment to delustre the wool fibres using an inorganic pigment is described, the use of which reduces the incidence of shading..

천연섬유의 복합재료에의 응용 가능성

유리섬유, 아라미드, 탄소섬유는 복합재료의 보강재료로서 그 용도가 확립되었다. 유리섬유가 가장 낮은 위치에 놓여있지만 가격이 싸기 때문에 현재 가장 많이 사용되고 있다. 자동차업계처럼 다량 사용하는 산업에서는 오직 유리섬유만 소비되고 있다. 저마모성, 실질상 무한의 사용성, 폐기처리에 문제가 없다는 장점을 가지고 있고 재생가능한 자원으로서 천연섬..

산업용사 생산을 위한 새로운 기술

산업용사는 비스코스, 나일론, 폴리에스테르, 아라미드, 탄소, 강철 및 유리섬유에 기초한 고 기능성인 것으로 일반적으로 생각되고 있다. 이러한 섬유들의 가장 중요한 기능적 특징은 고강력, 고모듈러스, 열안정성, 피로저항성, 가수분해 저항성, 내약품성, 섬유와 고무의 양호한 접착성 및 낮은 수축율이다. 전통적인 생산기술로는 나일론 6 중합, 나일론 66 배치..

Recycling: Polypropylene Tapes for Carpet Backing and Geotextiles.

A research project investigated the performance of oriented polypropylene tapes containing recycled polymer. Isplen PP040 was the virgin polymer used in the experiments. To produce simulated recycled waste, researchers re-extruded and peletized the Isplen PP040 up to 10 times. Re-extruded pellet collection for combination with virgin poly..

Recycling of Polypropylene Carpeting Waste.

Part Two of a two part article on recycling automotive polypropylene and polyester carpeting fabrics addresses the commercial development of the film extrusion process. The film extrusion process recycles carpeting waste into a thermoplastic backcoating for automotive end uses. Analysis determined that chopping the carpeting waste in a pa..