INTRODUCTION
Textile coloration is combination of same
series processes such as scouring, bleaching, dyeing & after treatment
which can be carried out at different stages of fiber processing in different
forms like staple, yarn, fabric (rope or open-width, piece & garments)
Dyeing of staple forms(loose fiber) is better for achieving better
colorfastness, maximum penetration and uniform migration of dues over dyeing.
Piece (batch) dyeing is carried out open width or rope form in depending on
machine type & end-dyes. Usually these materials are dyed in exhaust dyeing
method in a single dyeing machine. But lightweight woven fabrics & garments
are also possible to dye with same principle in different form
of dyeing
machine such as jet dyeing machine. During garment dye process, some dyeing
parameter should be adjusted according to form of products-righty weaved and
heavy garments need the dyes with better migration properties, higher dyeing
temperature, lower liquor ration & careful circulation of goods.
Usually, textile coloration is carried out
impart attracting of textiles & pretreatment is first stage of textile coloration
process, plats very role on coloring on textiles. Generally loose fiber, yarn,
knit fabric, garment & very lightweight synthetic woven fabric are dyed
batch wise in single machine. So the batch preparation is the early step of
pretreatment in coloration process.
GARMENTS
DYEING
This method is the best process of the dyeing
of goods. However, the penetration of the dye solution may not be completely
passed to the fibers such as between the seams, buttons, zippers etc. Normally,
it is used for lingerie, socks, sweater dyeing etc.
In woven fabric processing generally various
types of dying process is used. Those are:
i.
Pad Dry Steam (PDS)
ii.
Pad Dry Cure (PDC)
iii.
Cold Pad Steam (CPS)
Machine
required for those process:
i.
Cold pad batch
ii.
Thermosol
iii.
Pad steam
Cold pad batch: It is the simple &
easiest way of woven fabric dyeing. In this process only dark shade can be
produced successfully & economically. But limitation is medium or light
shade is difficult to match. It takes a long time because after dyeing it
required a rotation of 8 to 12 hours.
Thermosol: It is a dyeing machine but it
cannot produce the color as finally required or permanent. But in PDS process
it can be provide finished product. By this machine only color is migrated from
liquor to fabric. The it is dried on pre dryer & followed by hot air flow
drying in thermosol unit. After this process color is developed in pad steam by
chemical padding.
Pad stream: Thermosol run fabric must pass
through pad steam for the development of color when CPS process is carried out.
Here chemical padding is done through which color is fixed on the fabric. CPB
run fabric does not require pad steam process. Here based on requirement
additional dye can also added.
Garments Dyeing Machine Specification:
No. of machine: 01: Belly Machine
Brand
Name: Nagai Shina
Origin:
China Capacity: 250 kg
Model
No: NS-2260
RPM:
28
Temperature-
100° c
No. of machine: 02: Front Loading
Machine/Computer Machine.
Brand Name: DANIS Origin: Turkey
Capacity:
450 kg
Model
No: MKM-525
RPM:
30(Fixed)
No. of machine: 03: Hydro Machine
Brand
Name: DANIS Origin: Turkey
Capacity:
250 kg
Model
No: D-2233
RPM:
800N-1000N
No. of machine: 04: Dryer Machine
(Steam Dryer)
Brand Name: DANIS Origin: Turkey
Capacity:
180 kg
Model
No: D-2218
RPM:
30
No. of machine: 05: Dryer Machine
(Gas Dryer)
Brand
Name: DANIS Origin: Turkey
Capacity:
180 kg
Model
No: D-2218
RPM: 30