Generally, dyes are the colored substances which have
interaction to the substrate to which these are being applied. As an aqueous
solution form, these dyes can be applied. Generally, these dyes require
mordant to improve the fastness on the fibers.
Whereas, pigments, simply don't have any inherent likeness for the
substrates. Pigments are also not soluble in nature.
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While glancing through the pages of Dyes and
Pigments, there ought to be frequent occurrences of questions. Only a
thorough explanation to such questions can give a fuller and in depth
understanding of the various intricate processes that are generally
associated with the dyes and pigments. This page exactly tries to give
answers to all your thoughts about dyes and the dyeing process. |
FAQ's on Dyes
Dyes are soluble in water. These dyes are used for
colored clothes, basket reed and other porous materials. Pigments are the
coloring substances and these are generally found in powder from that is
insoluble in water. These don't migrate or bleed. For the insoluble nature,
pigments are mixed with oil, water, etc. to make paint. Due to having
different properties in dyes and pigments, these two are used in different
effects. Dyes and pigments have different properties and are used to create
different effects.
Natural dyes are the colors, which are obtained from
plants. These dyes are applied on the substances with the help of minerals
or metal salts. The metal salts are alum(aluminum salt), iron or tin (called
mordants).
- Most of the dyes, except Natural dyes are severally poisonous in nature. Due to this thing, when people use these dyes, then there may be a high risk of respiration disturbance of them.
- The working environment with natural dyes is very pleasant. This good working environment is very much conducive for the workers. The non-toxic, no poisonous and pleasant environment makes the working condition positive.
- The various wasteful materials which produces during the applications and manufacturing process of synthetic dyes, make the environment poisonous and polluted. So, in this respect also natural dyes are environmental friendly.
There is a certain method for calculating the required
quantity of dyes that has to be used. For every 100gms of fabric weight,
5gms of dyes should be used.
Pale colored dyes can not be used for dyeing strong
colored substances.
Dyes are unlikely to remove the stains. By coloring the
stained area, the stain can be hidden, though this stained area will still
look different from rest of the item.
The most dangerous kind of dyes are the basic dyes. These
dyes have excellent dyeing performance on the acrylic fibers.
