Difference between revisions of "Lanital"
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[Snia Viscosa] A trademark for the first commercially manufactured regenerated [http://cameo.mfa.org/materials/fullrecord.asp?name=protein 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 [http://cameo.mfa.org/materials/fullrecord.asp?name=casein casein]. Casein is processed with [http://cameo.mfa.org/materials/fullrecord.asp?name=formaldehyde formaldehyde] or [http://cameo.mfa.org/materials/fullrecord.asp?name=benzaldehyde benzaldehyde] and metal salts then pressed through spinnerets to form long, silk-like fibers. Casein fibers are softer and smoother than [http://cameo.mfa.org/materials/fullrecord.asp?name=wool wool] and contain less [http://cameo.mfa.org/materials/fullrecord.asp?name=sulfur 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 Lanital, along with other regenerated protein fibers, have been replaced by other synthetic fibers, because casein fibers are weak when wet and susceptible to microbiological growths. | [Snia Viscosa] A trademark for the first commercially manufactured regenerated [http://cameo.mfa.org/materials/fullrecord.asp?name=protein 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 [http://cameo.mfa.org/materials/fullrecord.asp?name=casein casein]. Casein is processed with [http://cameo.mfa.org/materials/fullrecord.asp?name=formaldehyde formaldehyde] or [http://cameo.mfa.org/materials/fullrecord.asp?name=benzaldehyde benzaldehyde] and metal salts then pressed through spinnerets to form long, silk-like fibers. Casein fibers are softer and smoother than [http://cameo.mfa.org/materials/fullrecord.asp?name=wool wool] and contain less [http://cameo.mfa.org/materials/fullrecord.asp?name=sulfur 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. | ||
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== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Lanitol (sp) | Lanitol (sp) | ||
| − | [[[SliderGallery rightalign|lanital250m.jpg~SEM|lanital750m.jpg~SEM]]] | + | [[[SliderGallery rightalign|LanitaFiberkj1.jpg~FTIR|lanital250m.jpg~SEM|lanital750m.jpg~SEM]]] |
== Other Properties == | == Other Properties == | ||
| Line 40: | Line 39: | ||
== Authority == | == Authority == | ||
| − | * | + | * 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 |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 06:26, 24 July 2013
Description
[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. Diameter=20-30 micrometers.
Tenacity = 0.9-1.1 g/denier (dry); 0.3-0.6 (wet); Elongation =60-70%; Moisture regain = 14%
| Melting Point | 150 (dec) |
|---|---|
| Density | 1.30 |
Additional Information
Joan Kiplinger 'Vintage Fabrics' at Fabrics.net
Comparisons
Properties of Synthetic Fibers
Authority
- 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