Calender Point Bonding: Tradition with a Future
For decades, calender point bonding has been an integral part of the nonwovens industry. Despite many new alternatives, this process is holding its own and proving its versatility in numerous areas of application. Sandler Group applies this proven technology since 1987 for the production of high-quality, versatile materials. But what is it that makes calender point bond so special, and what is the future of this technology?
Exactly what is calender point bonded nonwoven?
In the world of modern nonwoven production, the choice of bonding technology is instrumental for the quality and properties of the final product. One particularly efficient method is calender point bonding, a thermal bonding process in which a loose web of fibers is passed over several calender rollers. At least one of these rollers is engraved and sufficiently tempered to melt and thereby bond thermoplastic fibers like Polyester or Polypropylene at the contact points in the calender nip.
Through precise control of temperature and pressure, this process enables the production of nonwovens with impressive uniformity and strength, nonwovens that meet Sandler Group's high quality standards
Thermally point bonded nonwoven: fields of application
Calender point bonding enables the production of nonwovens with specific properties making them ideally suited for a wide range of applications:
- Coverstock for various personal hygiene products such as tampons, sanitary napkins, incontinence products, etc.
- Bonding bridges for sealings against moisture
- Full body car covers
- As a component in roofing membranes
The technology at Sandler Group
Sandler Group continuously invests in refining our technologies. This enables us to develop solutions meeting the specific requirements of your clients. Our focus is on maintaining a consistently high quality and on the improvement of material properties and production processes. Whether it's in construction, hygiene or manufacturing - Sandler Group thermally point bonded nonwovens impress with their uniformity and their universal applicability.
Looking into the future
Time and again, there are speculations as to whether the calender point bonding technology willl remain in the long term. In practice, however, it has proven to be a reliable and evolving method — firmly rooted in tradition, yet constantly advancing. It remains to be an vital part of the nonwovens industry. At Sandler Group, we see tremendous potential for future development. Continuous research and innovation lets us constnatly improve the properties and application possibilities of our thermally point bonded products. Learn more about our technologies and their numerous fields of application.
