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Natural and synthetic yarns, fibers, spuns, monofilaments and cutflock specialities from the reliable source Swicofil  
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Naturally cozy warmth 


smartcel elaktive

Just imagine: a soft, warm biker's jacket that is electrically heated or a window shutter that automatically closes at the first drop of rain.  energy makes it all possible, with the aid of electrically conductive functional polymers integrated in the smartcel Lyocell functional fibers. 

These fibers maintain consistent infrared warmth in textiles at relatively low energy consumption.

The electric resistors are infinitely variable, so that their functional effect can be regulated. The voltage range spans from 12 to 230 Volt.

Due to the light weight of these fibers, there are practically no limits to the possible applications of  energy in textile fabrics. Other extremely promising fields include moisture sensors, anti-static equipment and heating technology, such as electric blankets or floor heating systems. The fully developed technology of  energy is therefore finding innovative uses in various domains such as the construction industry and industrial health and safety.


Fields of application

  • Textile heaters: diving suits, motorbike clothing, winter sports clothing;
  • Heating systems: heating mats, floor heating;
                            Heating mats with smartcel energy filament yarn in weft direction
  • Anti-statics: industrial protective clothing, carpets
  • Sensors: detectors for humidity, liquids and solids, e.g. in shutters, floor screed monitoring or the activation of water pumps, e.g. for flood prevention.


Components of the filaments: 50% cellulose, 50% conductive soot

Chosen data of heating filaments

Features  Data
Single filament strength 1 tex
Total yarn count 1500 - 1700 dtex 
(if desired even finer possible) 
Tear resistance (based on yarn count) 9-10 cN/tex (single fiber)
60-70 mN/tex (filament) 
Elongation 14-15 % (single fiber)
6,5-7,5 % (filament)
Color deep black 
Specific electric contact resistance 0,4-0,5 Ω cm after hydrothermal annealing at 130º C  0,4 - 0,5 Ω/cm
Electric series resistance after hydrothermal annealing 40 - 55 kΩ/m
Appearance: on paperboard coil  L = 280 mm 
(cheese cone)  Ø = 100 mm
Net weight of coil < 1000g
other types of fiber upon request 


  energy  so far has only been produced in small quantities - mostly as filament. Possible to be produced in 1500 - 1700 dtex with a single filament count of about 10 dtex


the intelligent world of smart polymers directly to your business. 

We combine our unique, self developed  functional fiber with various different functional polymers to manufacture products with out-of-the-ordinary and astonishing properties. The  functional fiber is made from cellulose using a modified ALCERU® production process*. Both the biogenetic raw material and the production process are environment-friendly, and the fibers are biodegradable. The ALCERU ® technology is the result of scientific research and development by the Thüringische Institut für Textil- und Kunststoff-Forschung (Thüringen Institute for Textile and Plastics Research - TITK) in Rudolstadt. This innovation combines the familiar advantages of cellulose fibers, such as wearing comfort and optimal moisture absorption, with functional properties such as bioactivity and comfortable temperature adjustment. Overall,  functional fiber is characterized by high ecological quality and resource conservation, excellent suitability for textile processing, wide versatility in application and high efficiency combined with an extremely good cost/performance ratio.

*The ALCERU® process is a protected registered trademark of the Thüringen Institute for Textile and Plastics Research (TITK) and is the name of an original and patented manufacturing process. For further information on the ALCERU® process please refer to the website www.titk.de .


production process

To manufacture  functional fiber, amine oxides and water are used to separate the cellulose directly and without chemical modification, and the textile fibers are then produced in a spinning process. The ability to mix organic and inorganic additives homogeneously into the fibers makes it possible to produce various functional materials on this common cellulose base.


discover the world of intelligent fibers.



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