Textile physics is an essential subject for textile engineers as it studies the structure, mechanical properties, and physical properties of fibers, yarns, and fabrics. It enables experts to understand properties like tensile strength, moisture absorption, heat transfer, optics, electricity, physical structure, and yarn geometry. These concepts are fundamental to understanding how textiles behave and setting manufacturing parameters. The document argues that textile physics provides crucial basic knowledge for a career in textile engineering and is highly relevant to the field.

1. Dhaka University of Engineering & Technology (DUET),
Gazipur
Assignment-01
TE-2603
Fibrous Materials and Textile Physics–II
Assignment Tittle: From your personal point of view, what
do you think about the relevancy of textile physics in the
field of textile engineering?
Submitted by:
Name : Md Esrail
Student ID : 175005
Semester & Year : 2nd
year 2nd
Semester
Department : Textile Engineering
Submitted to:
Mr. Ayub Ali
Assistant Professor
Department of Textile Engineering

2. Definition of Textile Physics :
Textile physics is very important subject for textile engineers or
textile related students.
The study of the structure, mechanical properties & physical
properties of fibers, yarns & fabrics forms the unified subject
that is called textile physics. It is an essential part of education
of any Textile Engineer.
Textile Physics in Textile Engineering enables Textile
Experts to know the following:
1. Mechanical properties: The mechanical properties of
textiles, including tensile, flexural, torsional and frictional
properties and identify the difficulties of working with
fibres, yarns, fabrics, and garments having poor
mechanical properties.
2. Effects of moisture: Study of hygroscopic nature and
moisture absorption behavior of textile fibers.
3. Relation between regain and relative humidity,
influence of temperature, the effect of hydrophobic
groups, crystalline and non-crystalline regions on
moisture absorption.

3. 4. Heats of sorption: Heat of absorption, heat of
adsorption, heat of wetting, effect of evolution of heat in
textiles.
5. Effect of the interaction of moisture and temperature
changes on the rate of conditioning. The technical
significance of swelling of fibers, Thermal properties and
its effects in textiles processing.
6. Optical Properties of fibers: Refractive index and
birefringence, absorption and dichromatism, reflection
and luster of fibers.
7. Electrical properties of fibers: Electrical resistance and
its measurement, factors affecting electrical resistance of
fibers.
8. Dielectric properties of fibers: Static electricity in
textile fibers, problems caused by static electricity
in processing of textiles and Elimination of static
electricity in textile processes.
9. Physical structure: Identify the physical structure of
textile fibres and know the influences of fibre migration
during the spinning process.

4. 10. Yarn geometry: Analyze the geometry of yarns and
fabrics which has more significance in setting required
cover factor, air permeability, drapability and other
properties of cloths
In the above discussion, it is easily conceivable that
textile physics is one of the main sources of gaining a
thorough knowledge of the basics involved in textiles.
A person who does not have knowledge of the above
aspects of textile cannot be considered as a textile
engineer.
So from my personal point of view I can say with
confidence that the relevance of textile physics in the
field of textile engineering is inevitable