Garments Dyeing Process in Textile Industry
Garments dyeing is defined as a
process of coloring the garments as per
required shade
in which the garments are
made from grey fabrics.
It is
new
technology for
Bangladesh
but
old for European
Countries .
Initially
it
is applied on
woolen and silk
garments but
now for all fibers
. Popularity of
garments Dyeing is increasing day by day
Active wear
Jeans Items
Panty-hose
Shirts
Slacks
Terry Items
Dresses
Leisurewear
Pullover
Skirts
Socks
Sweaters
Etc.
All are done by same process?????
.JPG)
Types of Garments Dyeing
Over Dyeing:
Done over any
dyed and white
garments.
Garments
of100% cotton
can be only over dyed.
Dip Dyeing:
In a dyeing bath of direct or reactive dye
garments to be
dipped to a certain area
as per
requirements. Then
subsequent after-treatments
required.
Tie Dyeing
:
C
onsists of
folding, twisting, pleating, or
crumpling
a garment and
binding with string
or rubber
bands, followed by
application of dyestuffs.
Tinting
:
After
completing
basic washing
, some
tint is
added
to the dye bath
before softening
to make it
somewhat
bluer, yellower, greener, redder or any color
to match.
Advantages in GD
Lower cost
of production for any color and shade.
Less time
is required to produce and supply garments to the customers.
Small lots
can be made within short time.
P
re-treatments
like de-sizing, scouring, bleaching, dyeing and finishing
could be done
in the same machine
.
Lower liquor
ratio with minimum energy consumption for dyeing.
Old garments can be recycled
and be converted to new garments.
Lower capital investment
cost to set-up a garments dyeing project.
Lower wastage cost
in garments dyeing.
Pre-cautions in GD
Garments design:
engineering point of view.
Fabric Source:
Same lot and source.
Seams:
not be too tight or too loose to avoid irregular dyeing.
Mix Fabric (
woven and knitted):
Because of unequal shrinkage %
seam pucker can occur.
Mixed fibers:
proper dye selection to avoid irregular dyeing.
Poor quality metal:
may be damaged during dyeing for salt and
alkali. (better: nickel or its alloy)
Sewing thread:
same fibre like the garment fabric, to avoid color
difference.
Continued……
Button:
Button of casin, cellulose, nylon can be damaged but synthetic
buttons are safe.
Elastic:
Natural or polyurethane may damage in bleaching. Copper free
natural/polyurethane or polyester type elastic is safe.
Interlining:
Use recommended interlining
Compactly cotton woven fabric:
Use hot brand reactive dyes to avoid
irregular dyeing
Specific shade:
Use specific dye
Proper Pre-treatments:
Needed to remove impurities.
Crease marks:
special chemicals may be needed
Selection of Interlining in GD
During garments dyeing we should be
careful to select
interlining
otherwise it may be
destroyed for chemicals &
temperature
. Interlining for the garments to be dyed should have
the following properties:
Interlining should take-up equal amount of dyes
and
chemicals as the garment fabrics take-up.
Bond strength
between interlining and garment fabric should be
unaffected.
Handle property
of the interlining attached areas of the garments
should be
as per requirements
.
Resin
containing interlining may
pick-up dye molecules
, hence
color variation problem
between interlining areas and remaining
areas of the garment will arise.
Continued….
Garments dyeing is a method of coloring garments to achieve the desired shade, involving processes like over-dyeing, dip dyeing, tie dyeing, and tinting. This technique is gaining popularity for various garments like jeans, shirts, socks, and more due to advantages such as lower production costs, shorter turnaround times, and the ability to work with small lots efficiently. However, precautions must be taken in garment design, fabric selection, and thread quality to ensure uniform dyeing results.
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Presentation Transcript
Garments Dyeing Garments dyeing is defined as a process of coloring the garments as per required shade in which the garments are made from grey fabrics. It is new technology for Bangladesh but old for European Countries .Initially it is applied on woolen and silk garments but now for all fibers. Popularity of garments Dyeing is increasing day by day Active wear Jeans Items Panty-hose Shirts Slacks Terry Items Dresses Leisurewear Pullover Skirts Socks Sweaters Etc.
All are done by same process????? http://4.bp.blogspot.com/-KudctD-W-3Y/UrBhy-rh5OI/AAAAAAAAANw/2edIx7zxtAo/s320/3d_101309.jpg http://1.bp.blogspot.com/-uAlJaj4UUQM/UrBhybWiytI/AAAAAAAAANo/ooXQf8fz4kg/s1600/Dip_Dyeing_Textileaid+%281%29.JPG http://2.bp.blogspot.com/-1qlJqLf3R88/UrBhyxkxXvI/AAAAAAAAANs/PGcDoOY7YIk/s320/Tie_dye_Textileaid.blogspot.com.jpg http://1.bp.blogspot.com/-mjzlyWXHy60/UrBh1W9PpbI/AAAAAAAAAOA/hhfxK8XNpS4/s320/Tinting_textileaid.blogspot.com.png
Types of Garments Dyeing Over Dyeing: Done over any dyed and white garments. Garments of100% cotton can be only over dyed. Dip Dyeing: In a dyeing bath of direct or reactive dye garments to be dipped to a certain area as per requirements.Then subsequent after-treatments required. Tie Dyeing: Consists of folding, twisting, pleating, or crumpling a garment and binding with string or rubber bands,followed by application of dyestuffs. Tinting: After completing basic washing, some tint is added to the dye bath before softening to make it somewhat bluer, yellower, greener, redder or any color to match.
Advantages in GD Lower cost of production for any color and shade. Less time is required to produce and supply garments to the customers. Small lots can be made within short time. Pre-treatments like de-sizing, scouring, bleaching, dyeing and finishing could be done in the same machine. Lower liquor ratio with minimum energy consumption for dyeing. Old garments can be recycled and be converted to new garments. Lower capital investment cost to set-up a garments dyeing project. Lower wastage cost in garments dyeing.
Pre-cautions in GD Garments design:engineering point of view. Fabric Source:Same lot and source. Seams:not be too tight or too loose to avoid irregular dyeing. Mix Fabric (woven and knitted): Because of unequal shrinkage % seam pucker can occur. Mixed fibers:proper dye selection to avoid irregular dyeing. Poor quality metal: may be damaged during dyeing for salt and alkali. (better:nickel or its alloy) Sewing thread: same fibre like the garment fabric, to avoid color difference.
Continued Button: Button of casin, cellulose, nylon can be damaged but synthetic buttons are safe. Elastic: Natural or polyurethane may damage in bleaching. Copper free natural/polyurethane or polyester type elastic is safe. Interlining: Use recommended interlining Compactly cotton woven fabric: Use hot brand reactive dyes to avoid irregular dyeing Specific shade: Use specific dye Proper Pre-treatments:Needed to remove impurities. Crease marks:special chemicals may be needed
Selection of Interlining in GD During interlining otherwise it may be destroyed for chemicals & temperature. Interlining for the garments to be dyed should have the following properties: garments dyeing we should be careful to select Interlining should take-up equal amount of dyes and chemicals as the garment fabrics take-up. Bond strength between interlining and garment fabric should be unaffected. Handle property of the interlining attached areas of the garments should be as per requirements. Resin containing interlining may pick-up dye molecules, hence color variation problem between interlining areas and remaining areas of the garment will arise.
