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Vat dyes are an ancient class of dye, based on the original
natural dye, Indigo, which is now produced synthetically.
Both cotton and wool, as well as other fibers, can be
dyed with vat dyes."Vat dyeing" means dyeing
in a bucket or vat. It can be done whenever a solid
even shade, the same color over the entire garment,
is wanted, using almost any dye, including fiber reactive
dye, direct dye, acid dye, etc. The opposite of vat
dyeing is direct dye application, such as, for example,
tie dyeing. "Vat dyes" are a sepcial class
of dyes that work with a special chemistry. See
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Fiber reactive
dye is the most permanent of all dye types. Unlike other
dyes, it actually forms a covalent bond with the cellulose
or protein molecule. Once the bond is formed, what you
have is one molecule, as the dye molecule has become
an actual part of the cellulose fiber molecule. No wonder
you can safely wash a garment that has been dyed in
bright fiber reactive colors with white clothing, a
hundred times, without endangering the whites in the
least - even if it is all different bright colors, or
even solid black! See Our
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Polyester requires
the use of disperse dyes. Other types of dyes leave
the color of polyester almost entirely unchanged.disperse
dye can be used by even young children to make designs
on paper, which can then be transferred to polyester
fabric, or other synthetics, with a hot iron. The possibilities
are endless, using fabric crayons, rubber stamps, painting,
and even screen printing. See
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Pigment Paste has the characteristics of wide application.
It is widely applied to the industrial field such
as dyeing and finishing, textile, towel, sheet, handkerchief,
construction, chemical and light industry. See
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