Light Testing
Page 1 of 1, a sample page, at reduced quality. Open the document to read it in full.
A one-page column from the 'From Woods & Fields' series in the Minnesota Weaver on testing natural-dyed yarn for lightfastness. Connie Magoffin reports on a rating system from J. Merritt Matthews' 'Application of Dyestuffs' (1920), as cited in Ida Grae's 'Nature's Colors'. Samples are exposed in a south-facing window and rated from very fast to not fast over one to four weeks. She also notes that fastness covers washing, rubbing and perspiration as well as light, and announces natural dye classes and the use of Umbilicaria lichen for violet dyes.
- Type
- Article
- Date
- March 1976
- Language
- English
- Pages
- 1
- Archive notes
- By permission. PDF provided by Judith Combs.
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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