Acrylic Fibre Technology
In cooperation with a process licensor with many years experience in this field ENCO Engineering is offering the technology for acrylic fibre production, including polymerisation, spinning and fibreline.
PROCESS HIGHLIGHTS
For spinning a wet-spinning process is used, with dimethyl formamide as a solvent. The process has the following advantages against a dry-spinning process:
- High range of denier counts, from denier 1.2 to denier 20
- Tow-to-top application, producing the most wool-like fibres
- Low energy consumption and low nitrogen consumption
- Less explosion hazards
- Less health and environmental hazards
PROCESS
The acrylic process is a "one step technology", with the following main characteristics:
- polymerization in solution
- direct feeding of the dope to spinning
- wet spinning
- DMF as solvent for both polymerization and spinning
PLANT CAPACITIES
The standard capacity for one single fibreline is 22'500 tons/year, with six tows, based on 3 den.l
PRODUCT SPECIFICATION
- Standard fibres from 1.2 to 15 - 20 den, as tow or staple, cotton or wool type
- Microfibres 0.6 to 0.8 den
- Fully relaxed fibres, tow or staple
- High bulk fibres, staple
- Gel dyed fibres, tow or staple
- Hydrophilic fibres, tow or staple
PROCESS CONVERSION
Additional to its application in new plants the process can also be used for the conversion of dry spinning plants or for conversion of wet-spinning plants with nitric acid solvent to DMF wet-spinning. As a result substantially lower production costs are achieved, with the possibility to produce a bigger range of products.
For more information send us an e-mail !
ENCO Engineering GmbH Switzerland enco@enco.ch
