Pigments as a class are colored materials that are insoluble in their medium of application. As a result, they cannot penetrate or become readily fixed to a fiber and must be "locked" onto the fiber surface by use of a polymeric adhesive binder that encapsulates and holds the pigment onto the fibers. Pigments include inorganic salts, insoluble azo or vat dyes, toners, lakes, metallic complexes, and organ metallic complexes. Some binders are preformed water-insoluble polymers applied from solvents or as emulsions, whereas others are water-soluble or emulsifiable polymers which can be chemically crosslinked and insolubilized after application by drying and heating. The pigment binder systems tend to stiffen textiles, and have moderate to poor fastness, since they are surface treatments.
My Blog List
July 25, 2011
Subscribe to:
Post Comments (Atom)
Featured post
Problem Solving: Plan-Do-Check-Act
Description: This tool provides guidelines for using the Plan-Do-Check-Act approach and the steps to engage in the process. How it can be us...
Popular Posts
-
Co mparison among plain single jersey, plain rib and plain interlock fabric: points Plain s/j fabric Plain rib fabric Plain int...
-
The vinyl fibers, with the exception of vinal and vinyon-vinal matrix fibers, are extremely hydrophobic and diff...
-
The acid dyes are large dyes containing one or more sulfonic or carboxylic acid salt functional groups. These...
-
Polyolefin fibers are hydrophobic, and the molecular chains within the fiber are tightly packed. Therefore it is e...
-
Important Formula For IE Department 01. Target: No. of worker x working hour x 60 / SMV x expected efficiency. 02. Target: 60/SMV. 03. ...
-
Natural dyes and pigments are derived from mineral, animal, or plant sources and generally are complex mixtures ...
-
Definition: SMV means standard minute value. Time taken by a standard operator to complete any given operation with pre-determine conditio...
No comments:
Post a Comment