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MH Tomal, Author at Textile Study Center
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MH Tomal

Internship Trainee at SQUARE Fashions Ltd. Studied at Bangladesh University of Textiles Studied at Notre Dame College, Dhaka Studied at Dhaka Residential Model College

Determination Of Relative Humidity By Wet And Dry Bulb Hygrometer

Name of Expt.: Determination Of Relative Humidity By Wet And Dry Bulb Hygrometer. Objects :  To find out the temperature and relative humidity of lab room  Theory: Relative humidity is the ratio of actual vapour pressure to the saturated vapour pressure of the same temperature. Expressed as percentage. Relative humidity = actual vapour pressure/standard vapour […]

Dyeing Of Polyester Fabric With Disperse Dyes

Dyeing Of Polyester Fabric With Disperse Dyes (Carrier Method).   Objects : To dye a material practically. To observe the practical advantages and disadvantages of this dye. To compare the theoretical idea with practical experiment.   Introduction :     Dyes are coloured, unsaturated organic chemical compounds capable of giving colour to a substrate (a textile), i.e. […]

Printing on Cotton fabric with Vat dye

Printing on Cotton fabric with Vat dye Objects:  The main object of this process is to print the fabric. To print on the cotton fabric. Recipe :                      Dyestuff = 2 parts. K2CO3 = 4 parts Glycerine = 4 parts. Hydrox = 4 parts. Rongulile = 4 […]

Printing of cotton fabric with reactive dyes (Screen printing method)

Printing of cotton fabric with reactive dyes (Screen printing method) Objectives : To dye a material practically. To observe the practical advantages and disadvantages of this dye. To compare the theoretical idea with practical experiment. Introduction :     Reactive dyes forms covalent bond with fibre polymer and thus attach itself with fibre. It is now […]

Defects of Sulfur Dyeing Part 3

Part 01 :Introduction to Sulfur Dyes | History of Sulfur Dyes | Method of manufacture of Sulfur dye | Trade Names of Sulfur Dyes | Characteristics of Sulfur Dyes | Features of Sulfur Dye | Chemical Structure of Sulfur Dye | Chemical Nature of Sulfur Dyes | Chemistry of dyeing with Sulfur Dye   Part […]

Classification of Sulpher Dyes Part 2

Part 01 :Introduction to Sulfur Dyes | History of Sulfur Dyes | Method of manufacture of Sulfur dye | Trade Names of Sulfur Dyes | Characteristics of Sulfur Dyes | Features of Sulfur Dye | Chemical Structure of Sulfur Dye | Chemical Nature of Sulfur Dyes | Chemistry of dyeing with Sulfur Dye   Part […]

Introduction to Sulfur Dyes Part 1

Introduction to Sulfur Dyes Sulfur dyes are complex heterocyclic molecules or mixtures formed by melting or boiling organic compounds containing amino or nitro groups with Na-polysulphide and Sulfur. Sulfur dyes are so called as they all contain Sulfur linkage within their molecules.             Sulfur dyes are highly coloured, water insoluble compounds and have to be […]

Dyeing Jute yarn with Basic dye

Name of the Experiment: – Dyeing Jute yarn with Basic dye.   Introduction: It is suitable for acrylic fibers (other fibers by mordanting). It reacts with acetic groups, or mordants a chemical which can react or complex with a chromophore to form an insoluble color in the fibre. It has good fastness properties on acrylic […]