This inventor holds 9 USPTO granted patents. Top assignee: Hoechst Aktiengesellschaft. Active years: 1976-1988.
Location History:
- Kelkheim/Taunus, DE (1977)
- Kelkheim, Taunus, DE (1976 - 1978)
- Kelkheim, DE (1980 - 1988)
Company Filing History:
Years Active: 1976-1988
Title: Innovations in Dyeing Technology by Joachim W. Lehmann
Introduction
Joachim W. Lehmann is a notable inventor based in Kelkheim, Germany, recognized for his contributions to the textile dyeing industry. With a total of nine patents to his name, he has significantly advanced the processes involved in dyeing wool, particularly with reactive dyes.
Latest Patents
Lehmann's latest patents include an isothermal rapid-dyeing process for wool using vinyl sulfone types. This innovative method eliminates the need for long heating times, which traditionally took 50 to 60 minutes. By rapidly heating the dyebath containing the dyes and other ingredients, except for sulfuric acid, to the dyeing temperature, he has achieved level dyeings in a much shorter time frame. Additionally, he has developed a process for dyeing wool textiles without anti-felt finishes, utilizing reactive dyes in aqueous dyeing baths. This method allows for dyeing at temperatures between 110°C to 125°C for 10 to 20 minutes, without the need for pH-regulating substances.
Career Highlights
Lehmann has made significant strides in the textile industry through his work at Hoechst Aktiengesellschaft. His innovative approaches have not only improved dyeing efficiency but have also enhanced the quality of the final textile products.
Collaborations
Throughout his career, Lehmann has collaborated with esteemed colleagues such as Hans-Ulrich Von Der Eltz and Armand Lehinant. These partnerships have contributed to the development of his groundbreaking patents and advancements in dyeing technology.
Conclusion
Joachim W. Lehmann's contributions to the field of textile dyeing have paved the way for more efficient and effective processes. His innovative patents continue to influence the industry, showcasing the importance of research and development in textile technology.