Non-wovens materials

The construction adhesive is used to bond the layers of the non-woven article together. These layers consist of various non-woven materials and thin polyolefin... 

Note 3 The substrate is usually a sheet-like woven or non-woven material (e.g., glass fabric, paper, copper foil). 

The technique is very versatile and adaptable. Plastisols may be applied overall or—by means of engraved screens—can be printed in selected areas, in weights that can be varied between 30 g m-2 and more than 500 g m-2. Suitable substrates include paper, other non-woven materials, glass-fibre webs, and textiles. Water-based inks can be employed as coatings or in printed designs. For relief effects, expandable aqueous polyacrylate dispersions offer an alternative to expandable plastisol inks. They are dried and then expanded at 120°C, a temperature much lower than is required for vinyls with a multi-station machine, a wide variety of products can be made. 

This material is a durable antistatic agent, cationic in nature, and compounded to give excellent antistat properties on all synthetic fabrics and fibers. This is especially useful on either woven or non-woven materials. Moderate to high drying temperatures, here again, will produce some degree of durability. 

The absorbents and filmated products have been described. The simplest sleeved pads contain cotton, viscose, or cellulose fiber with an outer sleeve of gauze or non-woven material. Those with a multilayer core have an outer sleeve of cotton, viscose, or non-woven fabric that may have been treated with a polymer such as polypropylene to reduce adherence. Delayed strike through is facilitated by using a fluid retardant layer within the upper and outer sleeve that encourages lateral movement of fluid within the pad. 

The main features of purification filters based on ion exdiange fibrous materials are high sorption capacity and purification degree, low aerodynamic resistance, and efficient regeneration. As studies have shown [4 ], at a gas,flow rate of 0.1 m/s in a dense layer of a non-woven material, the length of a working layer is 2 mm which makes it possible to use filtering cloths of 10—20 mm thickness. The area of the filter is 20 m per 1 m of operation volume which corresponds to specific output, 7 10 m /h of purified air. The aerodynamic resistance of filters in this case does not exceed 20 Pa. 

Monomers, such as n-vinyl pyrrolidinone and hydroxy ethyl methacrylate, have been used to enhance the biocompatibility of films and to control the air permeation and hydrophilicity of microporous films and of non-woven polyolefin materials [10], Significant opportunities exist to pursue other uses in the bio-materials area [11, 12], Attempts to produce grafted films to control gas permeation for use in food packaging applications have not met with success [13], Co-extruded films have proven to be more acceptable in this food packaging area. The modification of films and non-woven materials rely upon low-voltage, self-shielded electron beams. The development of lower cost, low-voltage EB equipment reduces the economic barriers to further development in this area (Fig. 4) [14, 15],... 

I. Dal Pra, G. Freddi, J. Minic, A. Chiarini, U. Armato, De novo engineering of reticular connective tissue in vivo by silk fibroin non-woven materials. Biomaterials 26 (2005) 1987-1999. 

Gillies, M.T. Non-Woven Materials in Recent Development, Noyes Data Corp., Park Ridge, NJ, 1979. 

THERMAL TREATMENT OF SOME NEEDLE-PUNCTURED NON-WOVEN MATERIALS. 

Introduction of microelectronic microwave components close to the antenna demands for appropriate interconnect technologies on textiles. This aspect has been dealt with in various publications, both with woven and non-woven materials However, only little data is available on the microwave properties of different woven and non-woven materials This deficiency must be overcome. Interconnection to the microwave monolithic integrated circuit is an important area of research and development. One possible approach is the implementation of ribbon type interconnects, which can efficiently be used for power supply and low ficquency outyut signals. 

Continuous Filament Mat (CFM)—A non-woven material similar to chopped strand mat except that the fibres are swirled at random and are continuous. 

P(l) CFM may be used as an alternative to CSM. Properties and application potential are similar to CSM. CFM is a non-woven material similar to chopped strand mat except that the fibres are swirled at random and are continuous. The swirled strands are interlocked with a binder. The user should check with the supplier on the compatibility of the binder for a specific resin system. 

Adhesives for textile fibre bonding A J G SAGAR Non-woven materials, flocking, tyres, belts and hose... 

Coverstock n. A hghtweight non-woven material used to contain and conceal an underlying core material. Examples are the facing materials that cover the absorbent cores of diapers, sanitary napkins, and adult incontinence products. 

Gaisehnann G, Froning D, Totzke C, Quick C, Manke I, Lehnert W and Schmidt V (2013), Stochastic 3D modehng of non-woven materials with wet-proofing agent , Int J Hydrogen Energ, 38,8448-8460. 

The mode of operation of an industrial dust collector may in very simplistic terms be compared with that of a traditional domestic vacuum cleaner i.e. dust-laden air is drawn by vacuum on to the surface of the dust bag , the filter medium retains the dust whilst the dust-free air is expelled into the atmosphere. In an industrial unit, the filter media comprise either woven or non-woven materials, and are normally sewn in the form of tubes (usually referred to as filter sleeves), flat enveloped shaped bags, or cartridges of various design e.g. flat panel or pleated. 

The packaging of medical devices after cleaning and before sterilisation should protect the content (against contamination) as well as (during sterilisation) allow for removal of air and penetration of steam. The classical and most often used packaging material is sterlisation paper. Instrumentation kits are wrapped in sheets of sterilisation paper or non-woven materials that are subsequently sealed with sterilisation tape, which usually has a sterilisation indicator. 

Bolgen N, Menceloglu Y, Acatay K, Vargel I, Piskin E. In vitro and in vivo degradation of non-woven materials made of poly(epsilon-caprolactone) nanofibers prepared by electrospinning under different conditions. J Biomater Sci Polym Ed 2005 16(12) 1537-55. 

Poly(p-dioxanone) (PPDO), one of the biodegradable and biocompatible aliphatic polyesters, has high flexibility, good tensile strength and mechanical properties. Due to its good biocompatibility and physical properties, PPDO has been considered as a candidate not only for medical uses but also for universal uses such as films, molded products, laminates, foams, non-woven materials,... 

---