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Fabric and Garment Finishing: Hydrophilic Finish'

Hydrophilic finishes are used to make synthetic fabrics like polyester more comfortable by increasing their moisture absorption properties. They work by adding functional groups to the fibers that allow them to form hydrogen bonds with water molecules similarly to how cotton's natural cellulose structure interacts with water. These finishes are applied to fabrics that will be in contact with skin like towels, underwear, and sports clothing to improve moisture management. They provide benefits like softness, smoothness, static reduction, and stain resistance while maintaining durability through washing. Specific hydrophilic agents discussed include modified polyamides and silicones.

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305 views8 pages

Fabric and Garment Finishing: Hydrophilic Finish'

Hydrophilic finishes are used to make synthetic fabrics like polyester more comfortable by increasing their moisture absorption properties. They work by adding functional groups to the fibers that allow them to form hydrogen bonds with water molecules similarly to how cotton's natural cellulose structure interacts with water. These finishes are applied to fabrics that will be in contact with skin like towels, underwear, and sports clothing to improve moisture management. They provide benefits like softness, smoothness, static reduction, and stain resistance while maintaining durability through washing. Specific hydrophilic agents discussed include modified polyamides and silicones.

Uploaded by

Amrita Mitra
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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FABRIC AND GARMENT FINISHING

HYDROPHILIC FINISH

PRESENTED BY:
AYUSHI JAISWAL
BFT/15/509
HYDROPHILIC FINISH

Hydrophilic finishes compensate for lower moisture and water absorption capacity
in synthetic fiber materials, which become uncomfortable in contact with skin.

Cotton is naturally hydrophilic due to the presence of OH group in its cellulose


chain. These OH group form hydrogen bonds with the H present in water, to ensure
an attraction of the water molecule to the cellulose fiber.

It is known that silicones are inherently hydrophobic. When a fabric is finished with
silicone (or any other softener), the hydrophilicity of the fabric is decreased. This
phenomenon can be altered when the silicone has an organo functional modification
that allows the silicone itself to interact with water much in the same way as cellulose
does.
Certain products, based on modified (oxy-ethylated) polyamides, make the fabric
more pleasant by reducing the cohesion of water so that it spreads over a larger area
and thus evaporates more readily.

These treatments increase the critical surface tension of the fibre making it more
wettable. Many anionic and non-ionic surfactants, antistats, flame-retardants and
softeners impart hydrophilicity.

These finishes increase fibres moisture holding power. Such finishes have been
applied to towels, cloth diapers, underwear, sports shirts and other items where
moisture absorption is important.
Polyester is hydrophobic and thus is uncomfortable to the wearer especially in
warm temperatures. Since oils have a relatively high affinity for polyester
compared to cotton, many food stains, oils, and body oils permanently stain
polyester. Because of its natural affinity for oil stains, polyester actually collects
soil during laundering, and thus fabrics containing polyester tend to grey or yellow
after a few washes.
Additionally, because polyester has a very low moisture regain (0.4%), it tends to
exhibit static cling problems. Therefore, it would be advantageous to provide a
hydrophilic finish to polyester.
FEATURES

Soft handle.
Confers a pleasantly smooth and cool fabric handle.
Improves the antistatic properties of textiles.
Resistant to mild washing.
Imparts the textile hydrophilicity of the fabric.
Total Non-Yellowing .
Durable to washing.
Performance improves wash after wash.
HYDROPHILIC SOFTENERS

Americos SF-1402 (Hydrophilic Silicone Finishing Agent)

It is an epoxide modified hydrophilic silicone emulsion. Fabrics treated with


Americos SF-1402 have durable softness, good air permeability, hydrophilicity and
slippery feel.
The treatment also imparts anti-static properties and anti-pilling property to synthetic
fiber.
pH is 5.5
When used as softener, usual dosage of 2-3 g/l is recommended.

Special Features :
It has good water solubility and compatibility
It has good affinity to both natural and synthetic fibres
It can form self-cross-linked film on fabric surface with the help of catalyst and
heating
It imparts soft, slippery and elastic finish on cotton and flax fabrics
It can be used alone, or can be used along with durable stiffening resin
Sportswear
Towels

Cloth diapers
REFERENCES

http://www.creation-
international.com/presentations/special%20finishes%20of%20textiles.pdf
http://www.fibre2fashion.com/industry-article/7146/cotton-clothing-comfort-
compared-to-polyester?page=2

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