MH Tomal

Lab Report

Determination Of Relative Humidity By Wet And Dry Bulb Hygrometer

June 24, 2018 MH Tomal 0

4.87K

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 […]

Lab Report

Dyeing Of Polyester Fabric With Disperse Dyes

February 18, 2018 MH Tomal 0

6.80K

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. […]

Lab Report

Printing on Cotton fabric with Vat dye

February 4, 2018 MH Tomal 0

2.33K

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 […]

Lab Report

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

February 4, 2018 MH Tomal 0

6.03K

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 […]

Dyeing

Defects of Sulfur Dyeing Part 3

October 29, 2017 MH Tomal 0

1.50K

Dyeing

Classification of Sulpher Dyes Part 2

October 28, 2017 MH Tomal 0

967

Dyeing

Introduction to Sulfur Dyes Part 1

October 27, 2017 MH Tomal 0

4.10K

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

Dyeing Jute yarn with Basic dye

October 19, 2017 MH Tomal 0

2.61K

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 […]