The DREF 3000 makes its debut

Apart from a showcase for the DREF 2000, the ITMA in Birmingham provides the venue for the public launch of the latest FEHRER friction spinning machine, the DREF 3000.

At the ITMA 1979 in Hanover, the FEHRER DREF 3 friction spinning machine made its debut, while the ITMA 1999 in Paris saw the unveiling of the DREF 2000, the successor to the DREF 2 series. At the ITMA 2003, this tradition is to be continued with the first public appearance of the DREF 3000, the only spinning system to offer the production of special high-tech, core and multicomponent yarn constructions in the NM 0.5 - NM 25 (cc 0.3 - cc 14.5) yarn count ranges in a single, straightforward working process.

The DREF 3000 features include a drafter unit and opening head with infinitely variable drive control, spinning units with two infinitely variable suction spinning drums, take-off and winding units infinitely variable speeds and yarn surveillance, as well as filament guide with monitoring device.

The drafter unit can handle all types of synthetic fibres, special fibres such as aramid, FR and pre-oxidised fibres, polyimides, phenol resin fibres (e.g. Kynol), melamine fibres (e.g. Basofil), melt fibres (e.g. PA, PES, PP), natural fibres (wool, cotton, jute, linen, flax, etc.), as well as glass fibres in blends with other materials. The DREF 3000 processes these fibres in the form of slivers composed of one type of fibre, or using slivers with differing fibre qualities at one and the same time. Slivers with a homogenous fibre mixture can also be employed, both alone and in combinations with slivers in a single fibre quality.

Apart from these variations, the DREF 3000 is capable of operating with several yarn cores, which are axially fed to the spinning drums. These core yarns are then provided with a fibre sheath and are positioned precisely in the middle of the yarn.
Synthetic multi-, mono-, high-strength or texturised filaments; glass, viscose and aramid filaments; steel, copper and brass wires, yarns and pre-yarns can all be used. DREF 3000 core yarns offer high output, breakage-free spinning and weaving mill operation and thus up to 95% efficiency, uniform yarn strength and elasticity, not to mention soft yarns with sufficient strength.

DREF 3000 multi-component yarns can be employed for a wide variety of products, which are utilised in the following areas:

     High-strength and FR protective clothing for the civil and military sectors.
     Fire blockers for the aerospace and object sectors.
     Cut-resistant textiles.
     Tent fabrics (military and civil), transport tarpaulins, sacks, covers and sun blinds.
     Fibre composites for the aerospace, automotive, mechanical engineering and construction
       industries.
     Woven filters for dry and wet filtration.
     Transport belts.
     Sealing belts.
     Interlinings for outerwear.
     Elastic yarns.
     Knits
     All types of technical textiles.

The multi-component yarns manufactured using DREF 3000 technology are mainly employed for technical textiles of the highest quality. They provide heat and wear protection, excellent dimensional stability, outstanding suitability for dyeing and coating, wearer comfort, long service life and unparalleled strength, as well as a range of other qualitative and economic advantages. These include cost savings due to the use of less expensive materials, special fibres and wires as yarn cores, the production of customised yarns through the selective employment of differing materials in the core and sheath, and the spinning of extremely long fibres in the core in the form of ravellings, which creates unsurpassed yarn strength. Apart from their strength, DREF 3000 yarns are also notable for their abrasion-resistance, uniformity and excellent Uster values.

The production of various DREF 3000 yarn constructions is straightforward, fast and virtually free of limitations. The use of the term tailor-made in this connection is more than justified. Moreover, DREF 3000 yarns for the technical sector furnish manufacturers with a unique opportunity to penetrate new areas of application and thus open up markets that are full of future potential.

September 2003