How do
you wash your jeans?
In the past decade, cellulase enzymes became
widely used for denim garment treatment as an alternative to the pumice
stone-washing process in order to achieve an aged look for denim fabrics.
The enzymatic process is known as biostoning process. The use of enzymes
allows the denim garment washing procedure to be carried out under mild
conditions in the absence of pumice stones and harsh chemical agents. As
a result of biostoning process, a more uniform aged look for denim garment
may be achieved. Different visual effects may also be induced on fabrics.
One of the problems arising during the denim biostoning procedure is backstaining.
As a result of enzymatic treatment, indigo dye is washed out of the blue
yarn in denim, and it may stain the white yarn. This diminishes the garment's
look for consumers. Most consumers prefer high quality jeans with low backstaining.
In the Laboratory
of Physical Chemistry of Enzymatic Transformation of Polymers, M.V.Lomonosov
Moscow State University, cellulase enzymes are developed, which:
- may
be used for denim biostoning under acidic or neutral pH;
-
give
low or extremely low backstaining;
-
provide
necessary effects on denim garment owing to their intrinsic
properties
(in the absence of extra added formulation components).
If you have questions, you may contact the
laboratory using E-mail:
apsinitsyn@enzyme
chem.msu.ru