Re: Measuring yarn samples
Re: Measuring yarn samples
- Subject: Re: Measuring yarn samples
- From: email@hidden
- Date: Fri, 22 Jun 2007 17:07:15 EDT
In a message dated 6/22/07 4:27:45 PM, email@hidden writes:
> I have borrowed a lovely spherical spectro from a colleague and am really
> unsure how to proceed at this point.
>
A spherical spectro generally requires a sample that fills the opening in the
sphere, which is tricky with yarn. This is not ICC based stuff, and the
software used by the textile matching industry is rather different. Its standarized
at D65, not D50, for starters, and involves factors for texture and gloss. If
you look at the Datacolor side of the www.datacolor.com site (as opposed to
the ColorVision side), you'll find lots of tutorials and technical materials on
the Datacolor software products used for textile matching; companies from
WalMart to Victoria's Secret use Datacolor systems for textile formulation and
matching. I don't expect you'll be interested in purchasing the industrial
products used for serious textile color work, but you can learn a lot by reading
the materials on the website.
For your purposes, squeezing several strands of yarn together and measuring
with a 0/45 device, such as an EyeOne or the spectro that is bundled in
PrintFIX PRO can provide you with Lab values for simple color matching. Adjustments
for texture (lighten and increase saturation) and sheen (darken and increase
saturation) may be necessary for the non-flat nature of your samples. For most
yarns, the correction would be a bit lighter, and a bit more saturated...
C. David Tobie
Product Technology Manager
ColorVision Business Unit
Datacolor Inc.
email@hidden
www.colorvision.com
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