Textile Engineering - Fiber Materials for a Better World


Of all the technologies we consume, textiles are the least intrusive from a technology perspective and the most intrusive from a fashion perspective.  Mr. S. Ranganathan (Textiles, 1986) traces the fundamental role that textiles has played in the industrial revolution and points to the exciting developments in the future for this sector.


Mr. S. Ranganathan (Textile Engineering, 1986)

Introduction

I was born and raised in Coimbatore.   My education through high school was within the PSG Educational environment.  I grew up watching the pavilion that used to be in front of the PSG  College of Technology building with a globe on the top.  That pavilion was created as an exhibit at a world engineering fair.  It has long since been taken down.  As a kid, I attended every exhibition hosted at PSG College of Technology.  When it was time to go to college, there was no question where I wanted to go.

My father was in textile business. Most of my relatives and friends were in the textile business.  When I was growing up, on my way to school and back, I had to ride my bicycle past four textile mills.  Thus it was another easy decision for me in terms of picking which branch of engineering I wanted to pursue. 

Looking back, little did I now that the classes in material science, mechanics of machines and applied mechanics I took when I was in college, would be just as impactful in shaping my career as the courses in textile engineering. 

Onwards to the United States

I had the opportunity to study nonwovens and polymeric materials at the University of Tennessee.  I have since spent my entire career as an R&D Technologist in modifying fiber surfaces and participate in various ways fiber materials make this world a safer and a more comfortable place to live.

As I embarked on my career, I was amazed at the indispensable value of textiles in filtration, noise control and bio-barriers. Tremendous surface area of the extremely lightweight materials improve the quality of air at home and reduce the emissions from the industries as filters, create a quiet ambience at homes and automobiles as barrier fabrics and protect the patients and healthcare providers as surgical gowns. Innovation in the textile material science is at its best when the textile engineers collaborate with biologists and engineers from other disciplines.

A long way from Luddites

The textile industry was at the birth of the industrial revolution in the 1800s in the United Kingdom.  The power loom reduced demand for skilled hand weavers, initially causing reduced wages and unemployment. Protests followed its introduction.  In 1816 two thousand rioting weavers tried to destroy power loom mills and stoned the workers.  In our high school reading assignment, one of the stories we were asked to read a story that was about the innovator who invented the spinning jenney.  His family in the story was under threat of workers who were losing their jobs.  As a young student, I did not appreciate the forces of disruption unleashed by innovation.  But the emotions contained within the story have stuck with me all these years.

The Luddites were a social movement of British textile artisans in the nineteenth century who protested (often by destroying mechanized looms) against the changes produced by the Industrial Revolution, which they felt was leaving them without work and changing their way of life.

The movement emerged in the harsh economic climate of the Napoleonic Wars and difficult working conditions in the new textile factories. The principal objection of the Luddites was to the introduction of new wide-framed automated looms that could be operated by cheap, relatively unskilled labor, resulting in the loss of jobs for many skilled textile workers.

In modern usage, Luddite is a term describing those opposed to industrialization, automation, computerization or new technologies in general.

In the longer term, by making cloth more affordable the power loom increased demand and stimulated exports, causing a growth in industrial employment, albeit low-paid.  The power loom also opened up opportunities for women mill workers. 

This disruption visited the United States in the 20th century as well.  The Carolinas, where I work, were once the epicenter of the U.S. textile industry, but since the late 1990s, thousands of jobs were lost when emerging markets joined the game, touting cheaper materials and labor. Carolinas textile jobs went to China, Brazil and Vietnam, among other places.  But now, in an ironic turn of events, Chinese companies are looking to manufacture in the U.S., lured by lower costs of energy, cotton and land, and wary of rising labor costs in China.

This is then a key lesson of innovation in the capital markets oriented economies.  Innovation causes enormous disruption and pain.  But it also opens up great new opportunities in both technological and cultural arenas.  And in turn, that sets up societies for the next stage in their development.

New advances - Synthetic Fibers

Synthetic fibers are lighter than metals but significantly stronger. The high strength to linear density ratio and flexibility of the polymeric fibers allow the fiber materials to make a huge difference in the everyday quality of life. Composite fabrics from Kevlar to Nomex can not only stop the bullets in war zones and protect the firemen in wildfires, but protect fingers and arms as cutting gloves in food processing.  Areas of application can be as wide as improving air quality, reducing pollution, protecting from disease causing germs, reducing energy consumption, preventing soil erosion, protecting water resources and last but not least, more comfortable fabrics.

The US Department of Energy expects that the carbon fiber reinforced composites can lower the weight of an automobile by 50% and reduce energy consumption by 35%. Similar fiber based composites make the blades in the windmills and wings on an airplane lighter and stronger. Studies have shown that high performance apparels can not only reduce muscle vibrations in athletes but improve blood circulation in the diabetic patients. Three dimensional fabrics find home as stents in the arteries to the heart as well as support structures in the abdomen after a hernia.

Can we imagine an automobile without seat belts or an airbag? Tires last longer and run faster thanks to tire cord fabrics made from high modulus and low shrinkage yarns.  Textile materials protect the drivers while keeping the weight of automobile and fuel consumption lower.

Wearables and Textiles

Another area where these is enormous progress is in the area of wearable technologies.  When we mention wearables, we immediately think of gadgets on our wrists.  However, a bigger revolution is taking place with wearables within clothing.

Sri Lanka is a good example of a country making bold strides in this regard.  Sri Lanka has the highest per capita apparel exports in the Asian region. Their garment manufacturers are adopting state of art technologies involving wearable electronics, e-textiles and smart clothing for the global apparel market and the use of environment friendly fabric treatment and color processing ingredients.

The application of this innovation for providing our societies with data about our health and wellbeing and creating programs to promote physical and mental fitness is enormous.

Textiles for the 21st Century

Our impression of textiles as a study of making clothing is far from the reality in 21st century. The challenge to new textile graduates is in imagining the places and things that fibers can make a paradigm change in India and other developing countries.

Textile materials afford the new graduates wide opportunities to do good for the society while embarking on successful careers in developing innovative solutions. There are fiber materials that are biodegradable in the landfill such as polylactic acid - imagine carry bags that can be used forever and turn biodegradable after disposal or capable of transporting data signals across the continents in optical fibers.  Carbon fibers are much lighter than aluminum but much stronger than steel alloys. 

Summary

Living in the United States for the past 30 years and working with clients globally has afforded me the opportunity to witness first hand, the rapid changes in textile technology. My key takeaway is that almost all the successful innovations and developments have at least one thing in common: they positively impact the human living condition; whether it is personal safety or comfort or the environment.  As the new graduates enter the profession, whatever function they perform, product they develop or produce, or any problem they solve, they must remain cognizant of the role they play in making this world a better place.

About the author:
S. Ranganathan graduated from Sarvajana Higher Secondary School. After graduating from PSG College of Technology with a degree in Textile Engineering, he received his M.S from the University of Tennessee and an MBA from the University of North Carolina at Charlotte. He joined Goulston Technologies, Inc. after graduation and has remained there since. He currently serves as Executive Vice President and Chief Technical Officer.



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