Md Sohanur Rahman Sobuj

Thermal Properties of Polymers

April 26, 2019 Md Sohanur Rahman Sobuj 0

5.37K

Thermal Properties of Polymers : Thermal property: The property which is shown by a textile fiber when it is subjected to heating is called thermal property. Thermal property is included: Thermal conductivity Melting transition temperature Glass transition temperature Heat setting Thermal expansion Heat of wetting or heat absorption Flammability Thermal conductivity: Thermal conductivity is the […]

Frictional properties

Frictional Properties

September 15, 2018 Md Sohanur Rahman Sobuj 0

2.59K

Frictional Properties Friction is a vital important factor in the application of fibrous materials to engineering. Frictional property is the surface property of the fibers when two solid surfaces slide against each other. Due to fiber friction, static charge and heat energy is produced. Friction: Friction is the force of two surfaces in contact, or […]

Textile Physics-1

Torsional Properties of Textile Materials

August 30, 2018 Md Sohanur Rahman Sobuj 0

2.05K

Torsional Properties of Textile Materials Torsional Property: Fibers are twisted to form yarns, while are made into textile fabrics or ropes. The torsional properties determine how fibers respond while being twisted. Torsional Rigidity: The torsional rigidity is the resistance of a fiber to twisting. In the Hookean region of small stains, the torsional rigidity defined […]

Flexural-bending rigidity for a small curvature

Flexural Properties

Flexural Properties of Textile Materials

August 30, 2018 Md Sohanur Rahman Sobuj 0

4.08K

Flexural Properties of Textile Materials The behavior which shows by textile material during bending is called flexural (bending) property. The importance of Flexural properties is required when we wear cloth. Significance of Bending and Twisting: ❶ The bending and twisting of fibers influence the behavior of bulked yarn and the drape and handle of fabrics. […]

Optical properties of fibre

Reflection and Luster

June 10, 2018 Md Sohanur Rahman Sobuj 0

2.86K

When light falls on the fiber, part of light is reflected. The luster of a single fiber is determined by the total visual appearance of these reflections from the fiber surface. It is directly proportional to the amount of light reflected by a fiber. Silk fibers has a high luster and cotton has low luster.

Change in dimension of a fiber with absorption in moisture

Textile Physics-1

Swelling of fibre and Types of swelling

May 31, 2018 Md Sohanur Rahman Sobuj 0

2.57K

Dimensionally changes due to absorbing water or moisture by any fiber is known as swelling. When fiber absorbs water they change dimensionally. Swelling occurs in transversely (width wise) and axially (Lengthwise). It may be expressed in terms of the increase in diameter, area, length or volume.

Optical properties of fibre

Birefringence | Fiber Birefringence

May 31, 2018 Md Sohanur Rahman Sobuj 0

3.26K

The difference between the refractive index indices of the fiber in a direction at parallel to the fiber axis and in a direction at right angles to the fiber axis is called birefringence of that fiber. Birefringence is responsible for the phenomenon of double reflection.

Optical properties of fibre

Optical Properties of Textile Fibers

May 30, 2018 Md Sohanur Rahman Sobuj 0

3.29K

Part 1: Optical Properties of Textile Fibers Part 2: Birefringence | Fiber Birefringence Part 3: Reflection and Luster Optical Properties of Textile Fibers Optical Properties When light falls on a fiber, it may be partly transmitted, absorbed or reflected, depending on the structure of the light. The transmission, reflection and absorption of light determine the […]

Apparel Engineering

Modular Production System | Cellular Garment Manufacturing | Toyota Sewing System

April 1, 2018 Md Sohanur Rahman Sobuj 0

8.60K

Part 1: Garment Production System | Apparel Production System Part 2: Progressive Bundle System Part 3: Unit Production System | Overhead Production System | Hanger Production System Part 4: Modular Production System | Cellular Garment Manufacturing | Toyota Sewing System Modular Production System Modular production system involves a group of 4-17 people who set their […]

Apparel Engineering

Unit Production System | Overhead Production System | Hanger Production System

April 1, 2018 Md Sohanur Rahman Sobuj 0

9.66K

The unit production system (UPS) for apparel industries is a flexible material handling system that requires a computerized overhead transportation system to move the garment components automatically from one workstation to the next according to a pre-determined sequence.