TextileGlossary.com

What is "International Grey Scales" - Definition & Explanation

Two series of pairs of chips that show increasing contrast within pairs, and are used visually for comparing the differences in colour of textile specimens or the degrees of staining of transfer cloths attached to the test specimens, that occur during colour fastness testing.

a) Basic Scale for Assessing Change in Colour

A scale that consists of five pairs of non-glossy grey-coloured chips, and in which a fastness rating of 5 (indicating no colour change) at one end of the scale is represented by two identical grey chips, and a fastness rating of 1 (indicating a severe colour change) at the other end of the scale is represented by a pair of grey chips having a colour difference of 13,6 Cielab units.

b) Basic Scale for Assessing Staining

A scale that consists of one pair of white and four pairs of non-glossy grey- and white-coloured chips, and in which a fastness rating of 5 (indicating severe staining) at one end of the scale is represented by the pair of white chips, and a fastness rating of 1 (indicating severe staining) at the other end of the scale is represented by a pair of chips having a colour difference of 34,1 Cielab units.

NOTE:

Both scales may be augmented to form a 9-step scale by the provision of similar chips that illustrate the perceived colour differences corresponding to the half-step fastness ratings.

Some other terms

Some more terms:

Fiber dye
The process of dyeing fiber prior to formation into yarns. Very high fastness dyes can be used and there is less pressure on getting color exactly right since batches can be blended prior to yarn...
Cashmere
The fleece comes from a Cashmere goat. These animals roam at high elevations (10,000-15,000 ft.), hence their very warm, soft fleece. Garments made with cashmere are normally more expensive because...
Nylon
A man-made fiber, considered the strongest synthetic for upholstery fabric. Offering the best resistance to abrasion and soil: offers a cool soft feeling. Good cleanabilty characteristics. Nylon...
Sailcloth
cotton, linen, nylon. Plain weave, some made with a crosswise rib. A strong canvas or duck. The weights vary, but most often the count is around 148 x 60. Able to withstand the elements (rain, wind...
Catfonic
Cationic dyeable fiber is the newest tool in the fashion designer's lot, It's a dye technique that allows certain fibers (like nylon, or polyester)to take deep and brilliant colors. When catonic...

Companies for International Grey Scales:


If you manufacture, distribute or otherwise deal in International Grey Scales, please fill your company details below so that we can list our company for FREE!