Polyolefins such as PP and PE are often used in the medical industry for the manufacture of single-use products in order to benefit from the advantageous properties of the material.
Plastics such as PVC, PU, PC and others often need their adhesive properties to be optimized before further processing.
The surface properties of polyolefins such as PP, PE with their inherently very low surface energies make subsequent adhesive processes such as gluing and printing a challenge.
UV adhesives and UV printing inks in particular place high demands on the quality of the surface pretreatment.
Classic pretreatment processes such as priming or flame treatment have their disadvantages for example complex implementation and handling, high running costs for consumption and storage, high health and environmental requirements and difficult process control.
Plasma pretreatment at atmospheric pressure is a simple, inexpensive and controllable type of pretreatment. The so-called activation enables optimal adhesive forces and wettability.
In the medical industry there is also the advantage of the strong disinfecting / sterilizing effect of plasma treatment on treated surfaces.
Plasma treatment of syringes made of PP for an optimal print image and adhesive strength
Disposable syringes and test tubes as single-use products usually consist of non-polar polypropylene (PP) or COC.
With the plasma treatment from TIGRES, various high-performance systems are available for pretreatment.
With the appropriate arrangement of the plasma nozzles, homogeneous treatment can be achieved over the entire width of the round body, thereby ensuring the optimal adhesive strength of the printing ink.
Bonding of stainless steel cannulas and cannula holders (needle hubs) made of PP.
The plasma jet allows precise internal pre-treatment of the cannula holder (needle hub) for secure bonding of the cannula to the syringe
Printing and gluing of catheters made of PU and PVC.
The adjustable plasma power also enables the pretreatment of sensitive surfaces for precise and continuous treatment in the catheter manufacture. This allows catheters to be glued and printed securely.
Roughening of the syringe cone for better adhesion of the cannula.
Through the precisely adjustable plasma output, the roughness of the syringe cone can be increased significantly without damaging the cone. That way, secure adhesion of an attached cannula can be achieved with significantly increased pull-off values.
We are happy to answer your questions about medical technology.
Pretreatment tests on site and in the TIGRES laboratory are also possible or you can use our rental systems, with which you can test yourself in your laboratory.
Feel free to contact us: +49 4176 948 770 or send your request using our contact form. You are also welcome to send us an email: tigres (at) tigres.de