A beam dyeing machine dyes yarns or fabrics that have been wound onto a special beam with perforated holes. Dye is forced through the holes into the yarn/fabric from inside to outside and vice versa for an even dyeing result without dimensional changes or mechanical forces. Some brands of beam dyeing machines are Tex-Fab, Bhagyarekha, Apexjet, Devkrut, Raj, and Devrekha. The working principle involves winding fabric onto a perforated beam, inserting it into a pressurized dyeing vessel, circulating dye under temperature and pressure, and removing the fabric. Beam dyeing allows for controlled tension and dimensions with no mechanical action on the fabric.

1. GREEN UNIVERSITY OF BANGLADESH
Department Of Textile Engineering
ASSIGNMENT
Remarks:
Course Code : TE 305
Course Title : Textile Coloration II
Submitted To:
Name : Mr. Md. Mahbubur Rahman
Designation : Senior Lecturer
Department : Textile
Submitted By:
Name : Md Rakibul Hassan
ID : 183014057
Section : E1
Department : Textile
Date Of Performance : 07-08-2020
Date Of Submission : 15-08-2020
Assignment Topic : Beam Dyeing Machine

2. Assignment on Beam Dyeing Machine
Beam Dyeing Machine:
A machine for dyeing yarns or fabrics that have been wound onto a special beam that has
evenly perforated holes along its barrel. The dye is forced through the barrel into the
yarn/fabric from inside to outside and vice versa. The beam dyeing machines may be
capable of dyeing a single beam or to dye multiple beams. The fabric or yarn have better
dyeing results because of there is no dimensional changes as well as there is no mechanical
force applied to it. The high performance pumps circulate the dye liquor in efficient manner
to achieve even dyeing results.
Fig: Diagram Of Beam Dyeing Machine
Brand Name:
Some brand names of beam dyeing machine are given bellow
▪ TEX-FAB
▪ BHAGYAREKHA
▪ APEXJET
▪ DEVKRUT
▪ RAJ
▪ DEVREKHA
▪ SRE
Specifications Of Beam Dyeing Machine:
Main features:
▪ Sturdy construction
▪ Excellent functionality
▪ User friendly design
▪ Trouble-free operation
Exclusive Features:
▪ Sturdy construction
▪ Excellent functionality
▪ User friendly design
▪ Trouble-free operation

3. Technical Features:
▪ Sturdy construction
▪ Excellent functionality
▪ User friendly design
▪ Trouble-free operation
Optional Features:
▪ Fully automatic with PLC. Main Pump Invertor. Flow Meter (water Liter
Counter)
Machine Parts Name:
▪ Door
▪ Dyeing vessel
▪ Pump
▪ Porous beam
▪ Chemical dosing tank
▪ Control unit
Working Principal:
The working principle is same as that of HTHP yarn dyeing machines. The process of beam
dyeing is as follows:
1. The fabric or yarn in open width is rolled on to a perforated beam.
2. The beam then subsequently inserted into a dyeing vessel.
3. The machine is closed and pressurized.
4. The dye liquor is circulated in to out and out to in directions , under pressure
and temperature is employed as per the process requirement.
5. The chemicals and auxiliary are injected as per requirement of the process.
6. After required time & treatment take out fabric from beam and go for the
next process
Diagram:
Fig: A Thies Beam Dyeing machine

4. Advantage of Beam Dyeing Machine:
1. The fabric is put under controlled tension, and is wound on to a perfirated beam. This
results in elimination of creases from the fabric. It also ensures total control of
dimensions of the roll of the fabric.
2. The fabric is not allowed to do any movement during the process of dyeing. This
actually means that there is no application of mechanical action on to the fabric.
Disadvantage of Beam Dyeing Machine:
1. Fabric of different width can not be dyed together on a single beam.
2. The dyed fabric may be display moire effect if it is tightly due to shrinkage.
3. Uneven dyeing may occur if the beam is fully laded, as the dye liquor has penetrate
several layers of fabric.
Fabrics which can be dyed in Beam Dyeing Machine:
1. Woven fabric
2. Knitted fabric
Conclusion:
Beam dyeing is simply a much larger version of package dyeing. This method is similar to
package dyeing but is more economical. Yarn is wound on to a perforated warp beam or
perforated cylinders, which is then placed in the beam dyeing machine where the flow of
the dye bath alternates as in package dyeing.
---The End---
Submitted by
Md Rakibul Hassan
Id: 183014057
Article collected from:
1. https://textilelearner.blogspot.com
2. https://scholar.google.com/