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
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 […]
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 […]
Feed of the Arm Sewing Machine II Study on industrial feed of the arm sewing machine with thread path diagram
Experiment Name : Study on industrial feed of the arm sewing machine with thread path diagram. Introduction : The machine which practices stitches by the loop of one group of thread links with the loop of other group of thread by the process of interloping is called the industrial feed of the arm machine. There are […]
Finisher Card Machine
For getting better quality of jute yarn, Finisher card machine is necessary in jute spinning industry. It is usually down striking and full circular carding machine, having 4.5 pairs of workers and strippers. Its feed and delivery is on the same side of the machine.
Breaker Carding Machine
In the carding, the operation the long strands of jute are converted into a continuous ribbon of fibers. The ribbon is known as sliver. Different qualities of jute in the batch are also blended and much shorter fibers are removed too. The machines used in the carding process are generally two types-breaker card and finisher card
Bar tack Sewing Machine II Study on bar tack sewing machine with thread path diagram and sample production.
Industrial bar tack machine is actually a lockstitch machine group. By this machine, a very high density lockstitch is produced in very short length for increase the strength of that particular place. These machines are used for sewing both woven and knitted garments. For light thickness fabrics, needle size should be lower and heavy thickness fabric, height needle size should be used.
OD Automatic Batch Mixer Machine
Experiment Name: Study on the OD Automatic Batch mixer machine. Introduction: Jute fibre is consists of lignin, so it is hard and brittle. Easily breaks down due to abrasion and mechanical treatment. To make it soft and easy a mixture of some lubricating agent is used. The mixture of these elements is called emulsion. Oil […]