Difference between revisions of "Lanital"

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(Other Properties)
(Other Properties)
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See photomicrographs of Azlon fibers in http://cameo.mfa.org/wiki/Lanital fibers
See photomicrographs of fibers in http://cameo.mfa.org/wiki/Lanital_fibers
== Additional Information ==
== Additional Information ==

Latest revision as of 09:33, 6 February 2020

Lanital fibers


[Snia Viscosa] A trademark for the first commercially manufactured regenerated protein fiber. In the early 1930s, an Italian chemist, Antonio Ferretti developed a successful method to make regenerated protein fibers. Lanital was patented in 1935 and sold in 1936. Lanital is made from casein. Casein is processed with formaldehyde or benzaldehyde and metal salts then pressed through spinnerets to form long, silk-like fibers. Casein fibers are softer and smoother than wool and contain less sulfur. They are not susceptible to moths but can be degraded by some bacteria. Casein fibers are usually cream colored and they accept dyes well but have poor washfastness. Most often casein fibers are blended with wool in fabrics and hat felts. Lanital, along with other regenerated protein fibers, have been replaced by other synthetic fibers, because casein fibers are weak when wet and susceptible to microbiological growths.

Synonyms and Related Terms

Lanitol (sp)







Other Properties

Insoluble in dilute acids, hydrogen peroxide and most organic solvents. Affected by alkalis.

Filaments are smooth. Cross sections = circular, bean-shaped.

Density 1.25-1.3
Diameter 20-30 micrometers
Tenacity 0.9-1.1 g/denier (dry); 0.3-0.6 (wet)
Elongation 60-70%
Moisture regain 14%

See photomicrographs of fibers in http://cameo.mfa.org/wiki/Lanital_fibers

Additional Information

Joan Kiplinger 'Vintage Fabrics' at Fabrics.net


Properties of Synthetic Fibers

Sources Checked for Data in Record

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 153
  • Rosalie Rosso King, Textile Identification, Conservation, and Preservation, Noyes Publications, Park Ridge, NJ, 1985
  • Marjory L. Joseph, Introductory Textile Science, Holt, Rinehart and Winston, Fort Worth, TX, 1986
  • J.Gordon Cook, Handbook of Textile Fibres:II Man-made Fibres, Merrow Publishing Co. , Durham, England