Yaa Stuff Dyeing Procedure Amongst Ultrasonic Waves

Textile Dyeing Process alongside Ultrasonic Waves

Jamal Haider Hasib
B.Sc. inwards Textile Engineering
Southeast University
Cell: 01719920188
E-mail: jhhasib@gmail.com

Abstract:
Bangladesh has larn a lower-middle income province due to its tremendous growth of textile industry. Bangladesh is 2nd only to China, the world's second-largest clothe exporter of western brands. Due to competitive market; at nowadays a day’s companies e'er seek a toll effective production procedure specially inwards wet processing. In conventional moisture processing an unbelievable amount of H2O consumes inwards each as well as every steps along alongside chemicals. At this fourth dimension Nanotechnology takes places inwards textile sector. The get-go as well as foremost aim of this report is to cut down role of water, as well as chemicals inwards textile dyeing procedure using ultrasonic waves.

Background as well as Significance:
Color the globe beautiful as well as kill it alongside sweetness poison! Color is the principal attraction of whatsoever fabric. No affair how first-class its constitution, if unsuitably colored it is jump to hold out a failure equally a commercial fabric. Manufacture as well as role of dyes for cloth dyeing has so larn a massive manufacture today. The textile dyeing as well as finishing manufacture has created a huge pollution job equally it is i of the close chemically intensive industries on earth, as well as the No.1 polluter of build clean H2O (after agriculture). More than 3600 individual textile dyes are beingness manufactured past times the Industry today. The manufacture is using to a greater extent than than 8000 chemicals inwards diverse processes of textile manufacture extremely inwards dyeing as well as printing. The World Bank estimates that 17 to xx pct of industrial H2O pollution comes from textile dyeing as well as finishing treatment given to fabric. Some 72 toxic chemicals possess got been identified inwards H2O only from textile dyeing, thirty of which cannot hold out removed. This represents an appalling environmental job for the clothing as well as textile manufacturers.

As I am from Bangladesh, I promise it volition hold out slow to explicate the report on this topic from People's Republic of Bangladesh perspective. People's Republic of Bangladesh is a 3rd populace developing country. The textiles as well as readymade garments industry inwards People's Republic of Bangladesh has been proved significantly of import inwards the country's pursuit for export growth. Bangladesh is the get-go largest unusual currency earner which is to a greater extent than than 77% of the full export. It too contributes to poverty alleviation thorough occupation peculiarly past times women's economical empowerment and worker welfare. But it is my painful duty to inform y'all that nosotros possess got already polluted our environment.

As a final result of import H2O character parameters of our industrial are seriously injured. Our close of import rivers similar Turag & Burigonga possess got already polluted seriously due to straight discharge of Effluent generated past times textile Industry. The acquaint populace is confronted alongside numerous challenges of globalization.

The developing countries similar People's Republic of Bangladesh are facing realities of fast global merchandise scenario. Against this back drop, at that spot is a growing postulate for farther development, diversification as well as adaptation of local product, equally good equally question as well as evolution of textile engineering as well as engineering. Through utilizing & implementing effective engineering alongside effective manpower management the toll of dyeing could hold out reduced to a greater extent maintaining the surround condom through properly treating the discharged water. The surround peculiarly H2O & lives dependent on H2O could hold out kept condom & secured through discharging properly treated water. That’s why I wishing to railroad train to an option method of dyeing procedure of textile materials according to the theory of ultrasonic waves. That volition cut down water, auxiliary chemicals, as well as environmental pollution as well as plainly relieve toll of moisture processing.

Research Method:
Ultrasonic waves may aid me to railroad train an option method of conventional dyeing procedure of textile materials. Sound waves possess got been classified into infra-sound (up to 16Hz), audible audio (16 Hz –16000 Hz) as well as ultrasound; audio waves that possess got a frequency higher upwards about sixteen kHz upwards to 106 kHz. In this populace many species are using ultrasonic waves to live. Sounds inwards the attain of 20-100 kHz are commonly used for communication as well as navigation past times bats, dolphins, as well as another species. And higher frequencies, inwards the attain of 1-20 MHz, are used for medical ultrasound.

I wishing to railroad train a procedure of producing colors past times improver as well as subtractions of textile materials past times ultrasonic waves. Unlike gases as well as liquid, inwards solids both longitudinal as well as transverse waves are transmitted. The effects of ultrasonic genuinely arise when audio is circulated through the medium. In liquids, longitudinal noise of molecules generate compressions as well as rarefactions, i.e., areas of high and depression local pressure. The latter results inwards the formation of cavities, i.e., real pocket-size vapor bubbles of 500nm inwards size, which tin give the axe collapse as well as crusade stupor waves throughout the medium.

Let run into how ultrasonic waves works:

Fig-1: Principle of ultrasonic moving ridge

Case 1: Formation of cavitations: Ultrasound liberate energy is audio waves alongside frequencies higher upwards 20,000 oscillations per second. In liquid, these high-frequency waves crusade the formation of microscopic bubbles, or cavitations. They too crusade insignificant heating of the liquid.

Fig-2: Cavitations or bubbles formed inwards liquid past times ultrasonic waves

Case-2: Compression or rarefaction: There is a compression or rarefaction during each wheel of wave. When ultrasonic waves are absorbed inwards liquid system, the phenomenon of cavitations accept place, which is the option moving ridge formation, oscillation or collapse of tiny bubbles or cavities. When the bubbles collapse, they generate tiny but powerful stupor waves.

Fig-3: Forces created during compression or rarefaction

Case-3: Streaming: Pushes H2O along alongside the bubbles producing a time period of H2O called streaming away from the audio source. The 2 phenomena attributed to ultrasound are the rapid displace of liquids caused past times variation of sonic pull per unit of measurement area which subjects the solvent to compression as well as rarefaction and micro streaming. Simultaneous formation as well as collapsing of tiny air bubbles final result inwards a large growth in pull per unit of measurement area as well as temperature at microscopic level.

Fig-4: Rapid displace of liquids past times ultrasonic pull per unit of measurement area

Application on textile dyeing process:
The role of ultrasonic waves inwards the dyeing procedure tin give the axe hold out explained as: when ultrasonic waves are absorbed inwards the liquid organization the cavitations/bubbles created. Cavitations tin give the axe liberate entrapped gases from liquid or materials similar textiles, dye bathroom etc. (case-1). In a dye bath, vibration of waves makes compressions as well as rare factions. They create real pocket-size vapor bubbles of 500nm inwards size, which tin give the axe collapse as well as crusade stupor waves throughout the bathroom (case-2). If the bubbles collapse inwards textile materials, it results the formation of a high velocity micro jet alongside the velocities equally highly directed towards the corporation surface. These micro jets tin give the axe give rising to intra yarn flow, growth inwards the charge per unit of measurement of the volume transfer between the intra-yarn as well as inter yarn pores. On the other hand, they may hold out carried along alongside the audio waves if they practice non collapse immediately. This, inwards turn, pushes H2O along alongside the bubbles producing a flow of H2O called streaming away from the audio beginning (case-3).

Potential Benefits:

Saving liberate energy past times dyeing at lower temperatures.
Reduced processing times.
Reduces the role of auxiliary chemicals.
Enhancement of color shade.
Reduces processing costs.
Lesser charge to the effluent.
This procedure is unsophisticated as well as harmonized alongside nature.

References:

Optimization of Natural Dyeing Using Ultrasonic Method as well as Biomordant, By_N. A. Abdul Rahman, R. Tajuddin, as well as S. M. Tumin(International Journal of Chemical Engineering as well as Applications, Vol. 4, No. 3, June 2013)
Recent developments inwards textile dyeing techniques, By_Rahul Guglani
Online magazine-Textile today.
S. Berliner, III, (Consultant inwards Ultrasonic Processing)
Online magazine-fibre2fashion.
High ability ultrasound as well as acoustic cavitations, By_Mark Hodnett

About author:

Jamal Haider Hasib is a Textile Engineer. He has completed his graduation from Southeast University inwards 2013. He is currently working at a society "Friends International" equally a Sr. Marketing Executive.

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Application of Ultrasonic inwards Textile Wet Processing