EXECUTIVE PAGESPolyscour-7170: Powerful Scouring Aid for Polyester Greige Fabric
Dr. Naresh M. Saraf
(FRSC, FTI, FSDC. FAIC)
Sarex - India
Website: www.sarex.com, E-mail: [email protected]
Introduction
As in the case of any synthetic fibres, polyester is also more or less a clean and white fibre and hence
does not need bleaching before dyeing. However the fibre can contain the surface sizes, lubricating
agents, which are normally added during the manufacturing process and loom oil stains, spinning oil
stains etc. that may be left in the fibre from manufacturing processes because of the wrong and improper
working practice of fitter, jobber, beam gaiter, operator, warper, knotter, technician etc. Any kind of oil or
grease mark appearing on the fabric surface of either grey or dyed fabric due to stain, dust, use of
lubrication oil or grease in loom, warping machine and sizing machine is termed as oil, stain, dust and
grease marks in the fabric.
The pretreatment processes for polyester are mainly to remove these additives and soiling which can
interfere with the dyeing process. It is important to scour the fabric before dyeing so that all foreign
material is removed in order to promote even dye penetration resulting in overall level dyeing of the fabric.
The process generally involves is washing of the material with the active non-ionic surfactants in an acid,
neutral or alkaline medium depending upon the degree of soiling.
Sarex has developed a product Polyscour-7170, a very powerful scouring aid for polyester greige fabric.
The highlights of the product are listed below:
Unique Features:
- A very powerful scouring aid for the polyes-
ter greige fabric.
- It remove various additives like spinning oil,
acrylic sizes, lubricating oils along with oil
stains more efficiently as compared to con-
ventional method. Also it consumes less
time.
- It has a very low foaming and high shear
stability hence suitable on jet or soft flow
machine and yarn dyeing vessel.
- Stable to high temperature hence combined
scouring and dyeing can be carried out in
the same bath.
- Powerful affinity to polyester fibre and dis-
places the stuck impurities.
- It gives better hand feel near to weight re-
duction process.
- Since it has very high emulsifying proper-
ties, it helps in removing oil from the fibre.
Due to this it improves water retention and
improves dyeing properties.
Mechanism:
Polyscour-7170 has a very high emulsifying/
solubilizing properties which enables the re-
moval of various Spinning/ Texturizing addi-Application
tives from greige polyester fabric viz., spin-
ning oil, acrylic sizes, lubricating oils, oil stains Product Performance Data: From the results the perfor-
etc. more efficiently as compare to conven- mance of Poltyscour-7170 is evident proving its efficacy
as a powerful scouring aid for polyester greige fabric.tional method in less time.
NCM-OCTOBER 2021
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