3rd season of country’s first ever competition for textile, garment &
fashion design students.
Development of Denim effect
Md. Salim Azad Didar
TTH ID: SEU-10
Department of Textile Engineering
The growth paradox
Courtesy: Bangladesh Textile Today
• The story of jeans begins in the mid19th century simultaneously in two
European cities: Nîmes in France, where
the fabric itself was created, the socalled “Serge de Nîmes” which led to the
• The classical denim is a heavy fabric
made from 100% cotton and woven
from coarse indigo dyed warp and grey
undyed weft yarn.
• The traditional denim is hard- wearing,
high density fabrics with a high mass
per unit area and a 3/1 or 2/1- twill
weave and 1/1 chambray construction.
World Market Analysis
• The world market for denim jeans is projected to exceed
$65 billion by the year 2015.
• This is primarily driven by a rapid rise in the number of
customers purchasing denim jeans that offer better fit,
superior style, durable quality, and an affordable price tag.
• Denim is the most preferred clothing of today’s youth and
accounts about 3% of total world fabric production.
• Conventional woven denim is not as soft in texture as other
knit fabrics and so applications of denim in fashion design
• The immense numbers of almost two billion pairs of jeans
are produced each year, claiming about 10 percent of the
worldwide cotton harvest
Denim in Bangladesh
• Bangladesh has come up as the third most important
exporter of denim apparel to US after Mexico and China and
second highest to EU after China.
• Bangladesh is also one of the cheapest production centers
for apparel around the world.
• In Bangladesh the market for denims is dominated only by
jeans wear. Therefore we need to focus on fashionable
elements on denim fabric.
• This lead to the idea of creating denim effect on knitted
Knitted denim creating new business opportunities
Recent survey on children’s denim products showed that
• softness and easy care,
Parents and Children
• lightweight and
• fabric quality of the attributes.
Knitted denim fabric with its
• delicate structure,
• clear lines,
• soft, breathable comfort,
• playing quality thin features is the ultimate solution putting
both fashion and comfort in balance.
With the varieties of knitted denim continues to expand,
knit denim can be used as
•Health Care Purposes, as well as in
• T Shirts,
Flow Chart of knit denim
Indigo dyeing of
Beams are created
Converted to Indigo
Reactive dye process
Indigo dye process
Comparison between woven and knitted denims
Easy to tear
Difficult to tear
Gets Crease And Wrinkled easily
Highly Crease resistant
Air Permeability is Less
Air Permeability is More
Merits of knitted denim
The knitted denim offers the following advantages in comparison
with its woven counterpart:
The comfort ability of knit denim garments is better than woven
It mold and move easily with body movement.
Its stretch ability is good.
It resists wrinkles.
Knit fabrics are soft and drape well.
Air Permeability is more in knit fabrics
Most important perhaps is that knits relate well to contemporary
Knitting Machine specification
• Machine type
Number of feeder
Number of needle
: Single jersey Circular
: Well Run
: 24 G
Cleaning before Installation
Cleaning of CAMs
Cleaning of cylinders
Fabric production cost:
24/1 Ne 100% cotton combed yarn price
Cost of 100 Kg of yarn = 4.5x100
=$4.5 per Kg
Yarn Dyeing cost
Actual yarn dyed
Yarn dyeing cost for 96 kg
= $2.5 per Kg
= 96 Kg
Actual Fabric to be produced
Knitting cost for 93kg yarn
= $0.31 per Kg
Total Cost= $450 + 240+28.83
Total cost to produce 1 kg of Knit Denim
= $7.73 per kg
1. Knitting with indigo dyed yarn of proper flexibility in cone
2. Fading effect on reactive dyed yarn by advanced garments
3. Creating options for cost minimization by knitting with
rotor yarn, polyester etc.
4. Creating new designs using other knitting machineries.
• To earn more= To invest more
• Adding value to our product is the ultimate solution to
boost and sustain in the future
• The two fabrics that got developed during this research are
softer and comfortable as well as less complicated to be
• Knit denim is the fabric of the future, a future that we must
understand and adapt so as to survive in this competitive
• Value Addition
• Technical textile
• Non woven
• Plasma Technology
• Composite material
• Md. Mahamudul Islam, Lecturer
• Prof. Fakhrul Hasan Murad, Chairman, Department of Textile
Engineering, Southeast University
• Prof. A.N.M Ahmedullah,
• Prof. Dr. Shah Mohammad Fatah –Ur- Rahman
Knit Concern Yarn Dyeing Ltd.
Akij Textile mills Ltd.