Textination Newsline

Reset
4 results
Photo: pixabay, Hilary Clark
01.02.2022

Cotton Fibers 2.0: Fireproof and comfortable

A new chemical process developed by Empa turns cotton into a fire-resistant fabric, that nevertheless retains the skin-friendly properties of cotton.

Conventional flame retardant cotton textiles suffer from release of formaldehyde and are uncomfortable to wear. Empa scientists managed to circumvent this problem by creating a physically and chemically independent network of flame retardants inside the fibers. This approach retains the inherently positive properties of cotton fibers, which account for three-quarters of the world's demand for natural fibers in clothing and home textiles. Cotton is skin-friendly because it can absorb considerable amounts of water and maintain a favorable microclimate on the skin.

A new chemical process developed by Empa turns cotton into a fire-resistant fabric, that nevertheless retains the skin-friendly properties of cotton.

Conventional flame retardant cotton textiles suffer from release of formaldehyde and are uncomfortable to wear. Empa scientists managed to circumvent this problem by creating a physically and chemically independent network of flame retardants inside the fibers. This approach retains the inherently positive properties of cotton fibers, which account for three-quarters of the world's demand for natural fibers in clothing and home textiles. Cotton is skin-friendly because it can absorb considerable amounts of water and maintain a favorable microclimate on the skin.

For firefighters and other emergency service personnel, protective clothing provides the most important barrier. For such purposes, cotton is mainly used as an inner textile layer that needs additional properties: For example, it must be fireproof or protect against biological contaminants. Nevertheless, it should not be hydrophobic, which would create an uncomfortable microclimate. These additional properties can be built into the cotton fibers by suitable chemical modifications.

Durability vs. toxicity
"Until now, it has always taken a compromise to make cotton fireproof," says Sabyasachi Gaan, a chemist and polymer expert who works at Empa's Advanced Fibers lab. Wash-durable flame retardant cotton in industry is produced by treating the fabric with flame retardants, which chemically links to the cellulose in the cotton. Currently, the textile industry has no other choice than to utilize formaldehyde-based chemicals – and formaldehyde is classified as a carcinogen. This has been an unsolved problem for decades. While formaldehyde-based flame retardant treatments are durable, they have additional drawbacks: The -OH groups of cellulose are chemically blocked, which considerably reduces the capability of cotton to absorb water, which results in an uncomfortable textile.

Gaan knows the chemistry of cotton fibers well and has spent many years at Empa developing flame retardants based on phosphorus chemistry that are already used in many industrial applications. Now he has succeeded in finding an elegant and easy way to anchor phosphorous in form of an independent network inside the cotton.

Independent network between cotton fibers
Gaan and his colleagues Rashid Nazir, Dambarudhar Parida and Joel Borgstädt utilized a tri-functional phosphorous compound (trivinylphosphine oxide), which has the capability of reacting only with specifically added molecules (nitrogen compounds like piperazin) to form its own network inside cotton. This makes the cotton permanently fire-resistant without blocking the favorable -OH groups. In addition, the physical phosphine oxide network also likes water. This flame retardant treatment does not include carcinogenic formaldehyde, which would endanger textile workers during textile manufacturing. The phosphine oxide networks, thus formed, does not wash out: After 50 launderings, 95 percent of the flame retardant network is still present in the fabric.

To render additional protective functionalities to the flame retardant cotton developed at Empa, the researchers also incorporated in situ generated silver nanoparticles inside the fabric. This works nicely in a one-step process together with generating the phosphine oxide networks. Silver nanoparticles provide the fiber with antimicrobial properties and survive 50 laundry cycles, too.

A high-tech solution from the pressure cooker
"We have used a simple approach to fix the phosphine oxide networks inside the cellulose," Gaan says. "For our lab experiments, we first treated the cotton with an aqueous solution of phosphorus and nitrogen compounds and then steamed it in a readily available pressure cooker to facilitate the crosslinking reaction of the phosphorus and the nitrogen molecules." The application process is compatible with equipment used in the textile industry. "Steaming textiles after dyeing, printing and finishing is a normal step in textile industry. So it doesn't require an additional investment to apply our process," states the Empa chemist.

Meanwhile, this newly developed phosphorus chemistry and its application is protected by a patent application. "Two important hurdles remain," Gaan says. "For future commercialization we need to find a suitable chemical manufacturer who can produce and supply trivinylphosphine oxide. In addition, trivinylphosphine oxide has to be REACH-registered in Europe."

Contact:
Dr. Sabyasachi Gaan
Advanced Fibers
Phone: +41 58 765 7611
sabyasachi.gaan@empa.ch
 
Contact:
Prof. Dr. Manfred Heuberger
Advanced Fibers
Phone: +41 58 765 7878
manfred.heuberger@empa.ch

A gel that releases drugs
The novel phosphorus chemistry can also be used to develop other materials, e.g. to make hydrogels that can release drugs upon changes in pH. Such gels could find application in treating wounds that heal slowly. In such wounds, the pH of the skin surface increases and the new phosphorus-based gels can be triggered to release medication or a dye that alerts doctors and nurses to the problem. Empa has also patented the production of such hydrogels.

Source:

EMPA, Rainer Klose

(c) CHT Group
22.06.2021

CHT: "We are hiring." Humans Resources Policy in Times of Pandemic and Skills Shortage

The CHT Group is a globally operating company group for specialty chemicals. It has been in business for more than 65 years in a wide variety of industrial sectors and markets. Innovative and high-quality specialty chemicals alongside convincing services are just as much part of the portfolio as chemical auxiliaries and additives.

Textination spoke with Kurt Speckle [Head of Technical Service Dyestuffs] and Ursula Häberli [Head of Human Resources] specifically for the Textile Solutions division about the challenges of a successful human resources policy in such special times as a pandemic and the shortage of skilled workers.

The CHT Group is a globally operating company group for specialty chemicals. It has been in business for more than 65 years in a wide variety of industrial sectors and markets. Innovative and high-quality specialty chemicals alongside convincing services are just as much part of the portfolio as chemical auxiliaries and additives.

Textination spoke with Kurt Speckle [Head of Technical Service Dyestuffs] and Ursula Häberli [Head of Human Resources] specifically for the Textile Solutions division about the challenges of a successful human resources policy in such special times as a pandemic and the shortage of skilled workers.

The Technical Service Dyestuff department, headed by Kurt Speckle, who has worked for CHT for 32 years, currently comprises 16 people. It consists of a technical staff, which supports customers worldwide in the form of technical advice, on-site trials, lectures and in the creation of presentations, as well as a laboratory team, which handles inquiries regarding color settings, problem solutions, fastness, etc. Depending on the customer inquiry, both departments work hand in hand together.

The know-how and the heart of the technical staff consists of six people, all 50+, whom Kurt Speckle - with a grin - also calls "textile dinosaurs". In addition, young technicians with operational experience are being trained in order to be introduced to larger tasks. The apprenticeship training for textile laboratory technicians at CHT SWITZERLAND AG has a supporting effect.

As a globally operating company group for specialty chemicals, the CHT Group has been active in numerous industrial sectors and markets of 20 countries for more than 65 years. CHT Switzerland AG turns 50 this year and is the world's competence center for dyes. How has it been possible to establish and maintain such a good market position in dyes?

Kurt Speckle: In addition to the quality level of our products and the wide range of more than 700 products covering the various quality requirements of today's customers, CHT Switzerland also offers an excellent technical service for the product application. This globally known additional service makes us interesting for customers and generates inquiries worldwide. Transferring customer-specific problem solutions from our laboratory to production is one of the keys to our success.

In the Textile Solutions division, you have a wide range of specialty chemicals and dyes for textile production in your portfolio. In your opinion, in which direction is the textile industry currently moving in terms of dye chemistry - what trends do you see? What does this mean for your product range?

Kurt Speckle: One of the challenges today is to find the right dye gamma for the desired application. In recent years, we have constantly adapted the range to the new needs and requirements. In addition to these technical specifications, the entire textile finishing industry is also constantly confronted with new ecological and toxicological legal requirements. Textiles and also technical textiles not only have to meet certain fastness requirements, but also have to comply with countless label requirements. REACH and many labels lead to constant adjustments in the dye finishing to ensure that the products are up-to-date with the latest technology.

How does optimal teamwork work in the dyestuff team, and how can you ensure that the knowledge and experience gained over many years is passed on?

Kurt Speckle: Exchange of experience works with people who have practical experience. Only this can be built upon and new information can be stored accordingly. We operate and communicate on a common drive. Lively verbal communication is also essential for this. Our own tests in the laboratory and also in the production at customers' sites form the actual wealth of experience of our employees.

We are observing various megatrends that have taken a new turn as a result of the pandemic and that also directly affect your customers in the textile industry: Neo-ecology, connectivity and digitalization, health - to name just a few. To what extent does this challenge you as a service provider for your customers and as an employer? Is there a changed requirements profile for your employees?

Kurt Speckle: Due to the omission of traveling and direct customer contact, the working picture has of course changed. Due to the experience potential, however, many problem inquiries can be processed and solved via a wide variety of communication options. However, this cannot be seen as a sustainable and permanently established system. Experience and further development can only take place through practical trials on the most varied machines under the most varied conditions and with our dyes.

In which areas of training - whether at university or in apprenticeships - do you see a need for improvement in the curricula? Do career starters have the necessary skills for your company, or do you need to provide additional training in fundamental required areas?

Ursula Häberli: We train our future pool of specialists internally. In addition, we have several apprentices every year as textile and chemical laboratory technicians, whom we offer a permanent position afterwards. The training at the vocational school and in the advanced courses is excellent. The apprentices are challenged in many different areas. Textile laboratory assistants complete exactly the same training as chemical laboratory assistants, but have additional 240 lessons of textile training and textile courses. Textile laboratory assistants now require very extensive, in-depth and broad specialist knowledge. The textile industry is developing rapidly and new, complex content is constantly being added to the already very broad basic knowledge. We also actively support further education, for example the BSc Design & Technology at the Swiss Textile College. This training is broadly based and provides employees with good specialist knowledge and various additional essential skills.

What do you think about the personnel situation at CHT in general? Can you fill all positions? Who are you currently looking for most urgently?

Ursula Häberli: Our long-standing market presence and the good reputation we have built up over 50 years with our "customer first" approach always help us to attract talent. We are currently looking for a person as a textile technician for the Dyestuffs BU. Here we are planning early for the succession of a textile dinosaur who may retire in 2022. And for the Garment Team we are also looking for a textile technician.

The garment sector is a textile specialty that has been increasingly relocated to eastern countries in the last 10 years. Therefore, the search will certainly be a challenge.

You have built a career portal for CHT at https://career-switzerland.cht.com. With this website, you directly address different target groups: Apprentices, students, young professionals and experienced professionals. What role do the "old stagers" play in the company group?

Ursula Häberli: The old stagers are sometimes called "dinosaurs" by us - textile workers like them, with an often lifelong career in the textile world, are rare, pessimistically speaking: dying out. But all joking aside, the old stagers are enormously important. It is up to them to actively pass on their knowledge to future generations. This is already working very well on a day-to-day basis. The dyestuff team - including the boss - deliberately sits together in one large room so that a lot can be overheard and discussed. The team recently launched the "Textile Lunches". These are short concise learning nuggets to share knowledge and experience.

Employer branding seems to have been the magic word for some time now. Create an attractive employer brand, focus on strengths such as open corporate culture, transparent communication, responsibility for one's own area and employee benefits - and all positions are filled very quickly. What does CHT think of employer branding, what experience have you had with it, and what special offers do you provide to prospective employees?

Ursula Häberli: With the career site https://career-switzerland.cht.com, we have deliberately chosen a modern, outward-looking tool to strengthen our employer brand. CHT ambassadors tell their stories and make job seekers want to join us and help shaping the future. Another big plus is that the workplace is located in a wonderful landscape with a high recreational value, close to Lake Constance and an impressive mountain landscape, where our employees like to spend their time.

For some time now, the CHT company group has been operating under a new claim: Chemistry with Character. This statement was created for marketing purposes, but it certainly also says something about the company. What does this claim mean in particular for your personnel policy? Who is already on your team? Who are you looking for? And how many rough edges are employees allowed to have?

Ursula Häberli: We are looking for doers with high team player qualities. That's what sets us apart and makes us prepared for the future. We offer an extremely exciting field of work that demands a high degree of personal responsibility, initiative and creativity. We are proud to be the competence center for dyes at the Montlingen site - one of the few companies in the geographic area of Eastern Switzerland / Vorarlberg / Southern Germany that still exists and will continue to exist for a long time.

 

The interview was conducted by Ines Chucholowius, Managing partner Textination GmbH

17.11.2020

KfW: EUR 20 million for textile workers affected by the Corona pandemic

  • Rapid assistance to more than 200 000 people affected

Many hundreds of thousands of textile workers in Bangladesh are at risk of sliding into poverty as a result of the outbreak of the Corona pandemic. According to EU estimates, about half of the four to five million workers in the sector have either been laid off or made redundant since spring 2020 – in some cases without social security to back them up. To mitigate the dramatic economic consequences, the EU is now redirecting its existing sector budget support to Bangladesh. From now on, around EUR 90 million is to be channelled into a new government programme to finance wage substitution benefits for workers made redundant in the textile sector - including the leather and shoe industries – or at least to provide a short-term interim solution for workers who have been dismissed. German Financial Cooperation (FC) is now increasing these EU funds by EUR 20 million.

  • Rapid assistance to more than 200 000 people affected

Many hundreds of thousands of textile workers in Bangladesh are at risk of sliding into poverty as a result of the outbreak of the Corona pandemic. According to EU estimates, about half of the four to five million workers in the sector have either been laid off or made redundant since spring 2020 – in some cases without social security to back them up. To mitigate the dramatic economic consequences, the EU is now redirecting its existing sector budget support to Bangladesh. From now on, around EUR 90 million is to be channelled into a new government programme to finance wage substitution benefits for workers made redundant in the textile sector - including the leather and shoe industries – or at least to provide a short-term interim solution for workers who have been dismissed. German Financial Cooperation (FC) is now increasing these EU funds by EUR 20 million.

"The textile sector," says KfW office manager Anirban Kundu, "is the backbone of the economy in Bangladesh. The export share of the textile industry alone accounts for 86% of the economy, and the total trade volume is around USD 40 billion. If it is doing badly, the whole country is doing badly."

The corona pandemic is therefore causing enormous disturbances in the sector. Many orders were cancelled and goods already produced were often not taken. "Even though the situation has eased somewhat in the meantime," Kundu continues, "things remain critical - not least because of increased price pressure or because orders have not reached the previous level." As a result, the people affected find themselves in an emergency situation that threatens their very existence. Some employees on leave of absence only receive wage substitution benefits for the first 45 days. Dismissed employees who were not previously employed for a certain minimum period of time do not receive any support at all.

Still many workers on leave even though production resumes
In April 2020, the Bangladeshi government launched four economic support packages totalling around EUR 7.3 billion to mitigate the impact of COVID-19 on the economy. With the emergency aid now launched at short notice, the German Federal Ministry for Economic Cooperation and Development (BMZ) is topping up the existing EU sector budget support of EUR 93 million by up to EUR 20 million. This grant to the national budget for 2020 not only makes it possible to re-finance wage substitution payments for released textile workers, but also provides support, at least in the short term, to those who are particularly hard hit by a dismissal: for example mothers who do not receive benefits after the birth of a child, or those women and men who have been employed by a company for less than a year.

From November onwards, they are to receive the equivalent of around EUR 30 per month, initially for a maximum of three months, and possibly more. To ensure that this money reaches its destination, it will be transferred electronically to the bank accounts of those concerned via appropriate government platforms. The relevant export associations in the textile sector provide monthly updated figures on the number of workers released or dismissed.

"Subsidy does not release employers from their obligations"
Some 215,000 workers benefit directly from the payments through the German contribution alone, but indirectly almost four times as many benefit from them: Not only the family members, but also the communities where the textile workers live, as well as transport companies, street traders and other local service providers. Without this rapid support and the resumption of production, lasting economic damage to Bangladesh's already small and fragile economy can be expected. But Anirban Kundu also makes it clear: "It is by no means the intention to release employers from their legal obligations to continue to pay wages. Rather, the aim is to ensure that the emergency aid reaches workers who are no longer entitled to statutory continued payment of wages, so that they can at least make up for some of their misery."

 

 

12.05.2020

TEXTILE INITIATIVES INVITE GOVERNMENTS AND ENTERPRISES TO ACT

In a joint declaration, ten initiatives and organizations working for better working conditions in the textile industry call on governments and textile companies to take urgent action in the corona crisis.
End of April, the initiatives presented a common vision for social security and responsible entrepreneurship in this crisis.
 
In the joint statement AGT, amfori, Better Buying, Fair Labor Association, Fair Wear Foundation, ETI Norway and ETI UK, IDH, the Partnership for Sustainable Textiles and Solidaridad expressed deep concern for the health and livelihoods of millions of workers in the clothing industry and their families.
 
Covid-19 is having a devastating impact on the global textile industry. Most factory workers earned too little to care adequately for themselves and their families. As social security systems are lacking in many countries, the current crisis has hit these people particularly hard.

In a joint declaration, ten initiatives and organizations working for better working conditions in the textile industry call on governments and textile companies to take urgent action in the corona crisis.
End of April, the initiatives presented a common vision for social security and responsible entrepreneurship in this crisis.
 
In the joint statement AGT, amfori, Better Buying, Fair Labor Association, Fair Wear Foundation, ETI Norway and ETI UK, IDH, the Partnership for Sustainable Textiles and Solidaridad expressed deep concern for the health and livelihoods of millions of workers in the clothing industry and their families.
 
Covid-19 is having a devastating impact on the global textile industry. Most factory workers earned too little to care adequately for themselves and their families. As social security systems are lacking in many countries, the current crisis has hit these people particularly hard.

Workers need aid funds
In their letter to the governments in the producing countries, the initiatives and organizations appeal to protect the incomes and health of the workers and to support employers in this task: “The factories must pay wages and salaries on time to ensure the workers who remain actively employed. "

If factories have to close temporarily, it should be a top priority for all concerned to support the workers directly or to help them access financial ressources. This is the only way they can bridge the time while they cannot work.

Governments of the importing countries and multilateral organizations should also act now. In addition to providing support for retail and brand companies, they should also provide aid funds for people in the producing countries.

Seven of the ten initiatives and organizations are member-based and represent around 2,000 retail and brand companies that are currently facing immense challenges. Despite the dramatic situation, companies are required to comply with their due diligence requirements and to find solutions together with their business partners. The declaration contains a list of important points that textile companies worldwide should consider.
This includes:  

  • Companies should support factories to implement the necessary security measures to reduce the risk of infection.
  • Orders that have already been completed and are in production should be paid in full if possible.
  • Companies are advised to avoid the termination of planned orders.
  • They should be flexible when factories have to change delivery times and / or change payment methods.
  • They should not end business relationships without first looking for alternatives with their local partners.

Rehearsal for the future
Urgent action is now necessary in the crisis. But long-term systemic improvements in textile supply chains should already be considered and shaped. Fair payment and partnership-based cooperation between retailers, brands and suppliers should become the “new normal” after the crisis and are just as important as social security.    

"The current situation also offers the opportunity to make social security systems more sustainable so that times of unemployment do not immediately threaten the existence of workers," the statement said. The initiatives and organizations are also working on additional recommendations to support companies and other actors in the post-crisis period.

The text of the declaration is available for separate download.

Source:

Partnership for Sustainable Textiles