The Bayer MaterialScience headquarters at Leverkusen, Germany

The Bayer MaterialScience headquarters at Leverkusen, Germany

Impranil lifts goods profile

The product has a host of applications and the common thread is goods last longer, look good and stylish, are green and convenient for their makers

01 July 2013

Bayer MaterialScience presented its solvent-free Impranil raw materials for coating the textiles used for car seats and sports and fashion goods at the TechTextil 2013 trade fair in Frankfurt.

“Products such as team jerseys, soccer balls, shoes, jeans, jackets and bags may be very different, but once treated with these polyurethane dispersions, they have one thing in common – textiles and synthetic leather products manufactured in this way are long-lasting, feel good and look stylish,” says a Bayer Material Science spokesman.

“Not to mention they also meet the desire of many customers and consumers for low-emission, eco-friendly products,” he adds. Impranil can also be used for the formulation of coatings that meet the special requirements of technical textiles.

Bayer MaterialScience’s representatives at the fair included experts from Asia. Along with their European co-workers, they showcased sample coatings manufactured in pilot plants in Leverkusen (Germany) and Shanghai (China). They also gave visitors to the stand an idea of the possibilities offered by state-of-the-art textile technology using Impranil dispersions.

“Our polycarbonate-based polyurethane dispersions can be used to produce synthetic leather and textiles for automotive interiors that are extremely resistant to abrasion, moisture, sunlight and heat,” says Thomas Michaelis, head of textile coating for Europe, the Middle East and Africa at Bayer MaterialScience. “The materials are also notable for their good low-temperature flexibility and allow the creation of automotive interiors with very low emissions,” he continues.

The dispersions Impranil DL 2077 XP, Impranil DL 2288 XP and the high-solids Impranil DLU can be processed very easily using the mechanically blown foam method. Unlike the conventional coagulation process, this method does not involve the use of any toxic substances. It also uses less water and less than half as much energy.

Polyurethane high-performance coatings make an enormous improvement to athletic clothing and shoes. Among other things, they give the products a high level of elasticity that doesn’t fade even after frequent use. When the material is stretched during competition, it stores the energy for a short time and can give it back to athletes as they continue to move. Even frequent machine washing or drying cannot degrade these excellent properties. At the same time, the coating has only a very minimal effect on the weight of the textiles.

“Our solvent-free dispersions support the efforts of the sporting goods industry toward more sustainability,” says Thomas Michaelis. The technology also enables the manufacture of solvent-free, colour-fast and abrasion-resistant synthetic leathers.

Bayer MaterialScience is collaborating with the leading sporting goods manufacturers on developing coatings and synthetic leathers for innovative sports equipment. Among other things, Bayer experts are currently developing waterborne, breathable polyurethane systems for the coating of textiles.

“The fashion industry is also moving toward more environmentally friendly materials, and we can support this trend with our dispersions,” says Michaelis. For example, the Oeko-Tex standard 100 can be achieved with coatings based on these dispersions. This is an independent system that grades textile raw materials, intermediates and end products in all stages of processing in terms of the harmful substances they contain.

For example, jeans coated using Impranil DLN or the high-solids variant Impranil DL 1380 have a pleasant, soft and high-quality feel. The coatings also provide a high level of design freedom and enable gloss, colour and glitter effects. At the same time, the polyurethane coating survives more washes than other coatings. Finally, the dispersions can also be helpful in protecting certain areas during the stonewashed process.

Products such as Impranil DL 519, Impranil DL 1554 and Impranil DAH are also used to produce fashionable and low-emission synthetic leather applications for bags, jackets, belts, shoes and clothing.

Areas of application for technical textiles include conveyor and other transport belts as well as bellows used to protect the joints of industrial robots, for example.

With 2012 sales of 11.5 billion euros ($15.4 billion), Bayer MaterialScience is among the world’s largest polymer companies.

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