Fibrolane was the brand name of a regenerated

protein Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respo ...

fibre produced by Courtaulds Ltd. in

Coventry Coventry ( or ) is a City status in the United Kingdom, city in the West Midlands (county), West Midlands, England. It is on the River Sherbourne. Coventry has been a large settlement for centuries, although it was not founded and given its ...

(UK) during the 1940s, 1950s and early 1960s. It was made from the milk protein

casein Casein ( , from Latin ''caseus'' "cheese") is a family of related phosphoproteins (CSN1S1, αS1, aS2, CSN2, β, K-casein, κ) that are commonly found in mammalian milk, comprising about 80% of the proteins in cow's milk and between 20% and 60% of ...

dissolved in alkali and regenerated by spinning the resulting dope into an acid bath using technology similar to that of

viscose rayon Rayon is a semi-synthetic fiber, made from natural sources of regenerated cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. It is also called viscose. Many types and grades of viscose f ...

production. The fibre was produced as staple,

tow Towing is coupling two or more objects together so that they may be pulled by a designated power source or sources. The towing source may be a motorized land vehicle, vessel, animal, or human, and the load being anything that can be pulled. Th ...

or stretch-broken tow ("tops"), mainly for blending with wool. It had a warm, soft handle and could be converted into fine yarns and soft fabrics. Small amounts of Fibrolane could be added to wool to improve the efficiency of

felt Felt is a textile material that is produced by matting, condensing and pressing fibers together. Felt can be made of natural fibers such as wool or animal fur, or from synthetic fibers such as petroleum-based acrylic or acrylonitrile or wood ...

production.

References

{{Reflist Phosphoproteins Organic polymers Synthetic fibers