TENSILE BEHAVIOR OF ADHESIVE BONDED JUTE NONWOVENS

Deterioration of mechanical properties in adhesive bonded nonwovens with high web weight is frequently associated with delamination because the binder migrates toward the upper and lower surfaces during drying. The use of a binder with high tenacity and high initial modulus in the manufacture of jute nonwovens can increase bond rigidity b..

Measuring Fiber Orientation in Nonwovens. Part III. Fourier Transform

Researchers developed an image analysis technique using Fourier transformation of the image to evaluate orientation in fiber assemblies. Independent of the range of orientation, Fourier transformation provided an overestimate of the orientation standard deviation. This also held true for the bimodal image. Regardless of the structural fea..

Measuring Fiber Orientation in Nonwovens. Part IV: Flow Field Analysis

In a series of articles, researchers presented methods for simulating nonwoven images and obtaining Fourier transforms of the images to characterize fiber orientation. Part Four presents an indirect image analysis technique, flow field analysis, to evalua

Measurement of the anisotropy of a nonwoven by microwave method

Relative current attenuation decibel value indicates the microwave attenuation anisotropy. Since this bears a relation to mechanical anisotropy, the method could be developed as an-on-line quality control system.

Method of preparing a nonwoven web of poly(vinyl alcohol) fibres

A five-stage method for the production of spunbonded polyvinyl alcohol fabrics is claimed. IPC D04H.

Ceramic particles worked into nonwoven

The advantages of Thinsulate high-tech weather protection products are desicrbed. Thinsulate Ceramic Insulation incorporates ceramic particles into the fleece which convert light into heat and store it.

The measurement of fibre friction and its importance in manufacturing cotton nonwovens

An initial attempt is made to measure staple fibre friction with the aim of providing laboratory techniques for developing suitable fibre finishes for cotton, as bleached and scoured cotton presents difficulties during nonwoven fabric manufacture. The sled test and the beard friction test are examined and are shown to be able to detect th..

Nylon nonwovens and polyurethane composites in the polishing and cleaning industry

The use of a nylon spunbonded nonwoven fabric based polisher with a porous structure, which keeps the heat generated to a minimum, when used to polish machine parts is recommended. A polyurethane composite is used as the binder.

Nonwoven thermal/sound insulation material from recycled fibre

In Italy, ORV has introduced a bulky nonwoven construction, available in various thicknesses, for sound and heat (or cold) insulation. Called Fiberform 62T e Polipren, the construction is based upon a blend of polyester and polypropylene. The fibre is recycled from woven and nonwoven wastes.

The market for medical nonwovens in Brazil

An analysis of the title market in Brazil shows that this market can be divided into the surgical and general health-care sectors - the latter being the dominant one - and is represented by only two nonwoven technologies -spun-bonded and bonded-fibre fabrics. It is forecast that polypropylene spunbondeds should overtake bonded-fibre polye..