Functional properties
By selecting special binders and additives, the material can be specifically tailored to be hydrophilic, hydrophobic, flame-retardant, abrasion-resistant, or have other special functions.
Systematic bonding – for the highest demands
Chemical bonding is the method of choice when it comes to long-term stability, precise controllability, and targeted functionality. The use of specially tailored binder systems results in nonwoven fabrics with exactly the properties your application requires – dimensionally stable, resilient, and functionally optimized.
Chemical bonding – proven, precise, versatile
Chemical bonding has been a key process since the early days of modern nonwoven fabric production. It involves the use of colloidal binding agent systems in which high-molecular polymers are finely dispersed in water. Through targeted process architecture and the use of specific binders or additives, a wide range of functionalities can be achieved – from hydrophilic or hydrophobic to flame retardant and abrasion resistant. The nonwovens produced in this way impress with their uniform basis weight, high dimensional stability, and consistent surface structure. In addition, they offer a pleasant feel with a velvety touch.
Chemical bonding
Chemical bonding is a proven process in nonwoven fabric production, in which liquid binders are applied to the fiber web in a targeted manner and afterwards are thermally fixed. This creates a permanently stable nonwoven fabric with uniform material properties – which are particularly suitable for precise applications such as technical laminates, carpet backing, or filter media. Such nonwoven fabrics are ideal for view applications and skin-contact materials, but also for sensitive applications due to the use of fine fibers.
- High dimensional accuracy, uniform basis weight
- Soft, velvety feel
- Adjustable reinforcement zones
- Can be combined in many ways with other materials
Schematic process
In chemical bonding, binders are applied to the unbonded nonwoven fabric. The binder can be applied to the nonwoven fabric using various technologies: by impregnation in a padder, by spraying, by minimal application via a transfer roller, or by binder printing. After the binder has been applied, various drying systems (drum, roller, or belt dryers) are used to evaporate the water and consolidate the nonwoven fabric. In a few applications, solvent bonding is also required.
Versatile applications
The setting processes can be flexibly designed: impregnation, spray application, pressure contact, or minimal application.
Wide range of applications
Can be used in various applications with modifiable functions – always with specific performance profiles possible.
Efficient and economical
The chemical consolidation process is compatible with highly automated production facilities and enables high throughputs with consistent quality.
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With our chemical strengthening process, we offer you a proven and efficient solution for a wide range of applications. Take advantage of our technological expertise and let us work together to develop the optimal solution for your requirements.