Flock-fibre

This process is also helpful with flock fibre coated materials, whose particular design does not allow reclaiming as they do not provide any fibres long enough for re-use. However, one may take advantage of these flocked materials mainly or completely consisting of synthetic fibres. 

The 3D structure between two textile surfaces can be produced with the flock technology. In this technology, short cut fibres (flock fibres) are electrostatically charged and applied on adhesive coated substrate using an electric field. The flock technology is over 100 years old and is used in various technical, medical and textile sectors. The so-called filter-flock method is a process to improve the characteristics of spacer fabrics. The ribs made with flock, also known as rib-flock , allow for a greater conduction of excess heat and body moisture from the body due to their channel-shaped structure (cf. Section 14.3 Krel et ah, 2005 Machova et ah, 2006). 

A good example of Heliogravure printing is the manufacture of flocked wallpaper the adhesive may be coated according to a drawing or a pattern, then the flock fibres are sprayed onto the paper. Here the adhesive must be very fluid in order to penetrate into the depth of the gravure, and also to transfer from the gravure to the substrate to be coated. 

This technique uses a frame with a textile or stainless steel screen in which some meshes have been closed and some left open in order to give the required printing pattern. A rubber knife passes over the screen to push the adhesive through the open meshes. This will provide the required pattern of coating and then flock fibres, for instance may be sprayed onto the adhesive coat. 

Between the individual steps, the flock fibres are washed and pressed for prevention of contamination by chemical carryover. 

Because of their high fibre and low energy content, oats are best used in pullet developer diets and in diets for breeder flocks. Newer varieties of oats with a lower hull content may be more suitable in diets for growing meat birds. 

There is also recognition of the potential for organic fibre products, with Treliske based at central Otago. This 3000-acre family farm runs Merino, Romney and coloured sheep flocks with Angus and Hereford cattle. Fleeces are then selected by hand and spun into undyed, unbleached quality yarns which are hand and machine knitted and exported mainly to the US and Japan. 

For testing loosened fibre material, for example flock, tnft, loose stock, the method and device according to Rnf is recommended. The tested material is pressed with a rubber membrane and then rubbed. ... 

In addition to polymeric degradation, additives can be physically changed by moisture. Wood particles, paper fibres and flock were used as fillers to add reinforcement and bulk to formaldehyde plastics, notably BakeUte. Such fillers swell in contact with moisture thus causing the polymer to crack and fail. 

Structural stabilizers of the lead active mass Fibres, dyne flock, carboiymethylcellulose... 

Binzer JC, Plohnke K, Jeide G. Filter medium having flock islands of fibres anchored by calotte shaped adhesive deposits-, 1993. US 5219469 A. 

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

Flocking is the application of finely-cut fibres to adhesive coated substrate surfaces. It is carried out by one of the following methods ... 

The fillers described previously form the bulk of materials used in rubber applications. The list is by no means exhaustive but those that are not covered are more specialised in use. Other fillers known to be used in rubber include calcium sulphate, cork, dolomites, feldspar, graphite, lead, lithopone, magnesium carbonate, molybdenum disulphide, rubber crumbs, textile fibres (flocks), wollastonite, wood flour, zinc oxide and many others. 

Thermosetting plactics are often reinforced by as much as 100 phr of various fillers, for example, wood flour, cotton flock asbestos and synthetic fibre used with phenolic thermosets, and silica flour, mica or talc with epoxies. Glass fibre reinforcement of polyester resins for structural, automotive, aerospace and marine applications is too well known to require comment. 

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