Binders are used to improve the mechanical properties of nonwoven and woven textiles, such as dimensional stability, stiffness and tensile strength. Conventional binders are predominantly made of petroleum-based substances (e.g. acrylics), even though the fibers may be entirely from renewable cellulose.
OC-biobinder™ is fiber-binding system based on modified biopolymers and natural plant compounds. It is classified as non-irritating and non-dangerous to the environment by the European REACH regulations, and therefore enables the manufacturing of more sustainable fiber-based materials.
The OC-biobinder™ system can be used on woven textiles to increase stiffness and prevent fraying making it suitable for the manufacturing of sun blinds. On nonwoven or air-laid materials, OC-biobinder™ can increase tensile strength, decrease linting and improve dimensional stability.
The system is compatible with most types of fibers, including cellulose-based fibers (e.g. cotton, paper pulp), synthetic fibers (e.g. polyester, PLA), mineral fibers (e.g. glass fibers) and mixed fibers.
The OC-biobinder™ system consists of numerous formulations, affecting the mechanical properties of the fiber-based material in different ways with varying softness, tensile strength, wet stability, etc. The formulations also have different viscosity, solid content, etc. and therefore can be applied to the fiber-based material in different ways. Generally, the fiber-based material is impregnated with an aqueous solution of OC-biobinder™ by dipping or padding. Application by coating and spraying methods are also possible. Subsequent to the application, the fiber-based material is dried at elevated temperatures.