The document summarizes the scouring process used in textile manufacturing. Scouring involves removing natural and added impurities from textiles using chemicals like caustic soda and detergents to produce a clean and hydrophilic material. The objectives of scouring are to make the fabric highly absorbent, remove oils, waxes and other impurities, and prepare the textile for downstream processing. Scouring can be carried out via continuous processes like the J-Box or discontinuous batch processes using a Kier boiler. The effectiveness of scouring is assessed through tests like drop, immersion and spot tests.

1. Amanuzzaman
ID- 69/17
Level 2, Term 1
Welcome
To My
Presentation Shyamoli Textile Engineering College

2. SCOURING
A
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ve
at,
to
an
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g
B
C

3. SCOURING
A
Scouring:
Scouring is the process by which
all natural and additive
impurities such as oil, wax, fat,
hand dust etc. are removed to
produce hydrophilic and clean
textile material. It is one of the
vital processes of wet processing
B
C

4. SCOURING
A
Scouring:
Scouring is the process by which
all natural and additive
impurities such as oil, wax, fat,
hand dust etc. are removed to
produce hydrophilic and clean
textile material. It is one of the
vital processes of wet processing
B
Objects of Scouring:
1) To make the fabric highly hydrophilic.
2) To remove impurities such as oils, waxes, gum,
husks as nearly as possible.
3) To increase absorbency of fabric or textile
materials without physical and chemical damage.
4) To produce a clean material by adding alkali.
5) To make the fabric ready for next process.
6) To remove non-cellulosic substance in case of
cotton.
C

5. SCOURING
A
Scouring:
Scouring is the process by which
all natural and additive
impurities such as oil, wax, fat,
hand dust etc. are removed to
produce hydrophilic and clean
textile material. It is one of the
vital processes of wet processing
B
Objects of Scouring:
1) To make the fabric highly hydrophilic.
2) To remove impurities such as oils, waxes, gum,
husks as nearly as possible.
3) To increase absorbency of fabric or textile
materials without physical and chemical damage.
4) To produce a clean material by adding alkali.
5) To make the fabric ready for next process.
6) To remove non-cellulosic substance in case of
cotton.
CScouring process depends on:
The type of cotton.
The color of cotton.
The cleanliness of cotton.
The twist and count of the yarn.
The construction of the fabric.
The shade % and type of shade of finished product.

6. 4321
Sponificati
on
For vegetable
oil, animal
fats, mineral
oils.
Solublisati
on
For pectines,
minerals,
heavy metals
etc.
Emulsion
For mineral
oils, waxes.
Detergency
For dirts,
dust, china
clay
Mechanism Of Scouring

7. Chemicals used in Scouring
CUSTIC SODA
DETERGENTS
SURFACTANTS
CHELATING AGENT
SODIUM SILICATE
SODA ASH
SOLVENT

8. 02
01
D I S C O N T I N U O U S
Ex: Kier Boiler
Process
C O N T I N U O U S
Ex: J-Box Process
Types of Scouring

9. Working principle Kier Boiler Process:

10. Working Principle of J-Box Process:

11. 4321
DROP TEST
.
IMMERSION
TEST
SPOT TEST
.
COLOUMN
TEST
Assessment of Scouring

12. Advantage of Scouring
• The process is a continuous process. So consumes less time
• The process is economical
• Scouring, desizing and bleaching performed at a time

13. THANK
YOU