Bernd Pulvermacher

Title: Bernd Pulvermacher: Innovator in Composite Elastic Yarns

Introduction

Bernd Pulvermacher is a notable inventor based in Geneva, Switzerland. He has made significant contributions to the field of textile engineering, particularly in the development of composite elastic yarns. With a total of 2 patents, his work has paved the way for advancements in fabric technology.

Latest Patents

One of Bernd Pulvermacher's latest patents is the air-jet method for producing composite elastic yarns. This innovative method allows for the continuous production of composite elastic yarns at speeds up to 700 m/min. The process involves stretching an elastomeric yarn, such as spandex, by 2.0× (100%) to 10.5× (950%) while heating it to a maximum temperature of 220°C. This is followed by air-jet entangling with a relatively inelastic yarn component to create the composite elastic yarn. The final step includes in-line heat-treating the yarn at a maximum temperature of 240°C. The resulting composite elastic yarn exhibits improved stitch clarity, making it particularly suitable for hosiery. Its properties can be tailored to provide fabric characteristics for knit and woven fabrics that were previously unattainable with standard spandex yarns.

Career Highlights

Throughout his career, Bernd has worked with prominent companies in the textile industry, including Invista North America S.a.r.l. and Invista North America S.à.r.l. His expertise in yarn production and textile technology has established him as a key figure in his field.

Collaborations

Bernd Pulvermacher has collaborated with notable professionals such as Willem Bakker and Michel Verdan. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

In summary, Bernd Pulvermacher is a distinguished inventor whose work in composite elastic yarns has significantly impacted the textile industry. His innovative methods and collaborations continue to influence fabric technology advancements.