We develop and manufacture polyurethane (PU) films from a wide range of resins and additives, allowing us to fine tune the qualities polyurethane film can offer, such as;
We extrude both monolithic and micro-porous polyurethane films, onto a variety of carriers to achieve the best fit for the end-product. The stripping load of the polyurethane film to the carrier can be adjusted from 1-8g/cm, enabling the film to match our customer’s process.
Through selection of polymers and additives we can adjust the amount of moisture transfer through our films. It is this feature of our films that allows the long wear times of first-aid dressings while keeping the area covered dry. Some films such as PE based films need to be perforated to achieve this.
A further increase in breathability can be achieved by reducing the weight or thickness of our films. We have processed our films down to 15 gsm, in some cases this doubles the amount of moisture that can be transferred. Please ask us for more details or samples.
We have films which change their moisture absorption depending on the presence of water. So in a dry environment they will have a low moisture transfer rate and in a wet environment the film will wick away the moisture at a higher rate.
Our PU films are easily extensible-easy to stretch, elastic, and soft when compared to PE film. This leads to comfort and increased wear-ability, when compared to PE, Fabric or PVC. Because the product conforms to the shape of the area and stretches and rebounds, and so bandages or dressings stay on longer.
The ability to stretch and rebound can mean that if the film is used in laminations the laminated product can retain its flexibility. When used in inflatables or gel pads the stretchiness can produce puncture resistance.
PU is a naturally strong product and used in many areas as surface protection. It also has a high chemical resistance. We can adjust heat resistance to suit needs. Our EU94/EU95 films are particularly durable for demanding applications and are used in gel and inflatable products increasing puncture resistance.
By choosing different polymers and additives as well as surface treatments we can create waterproof films at levels required to suit most situations. In first aid dressing manufacture this can give a totally waterproof protection to wounds.
There is no need to perforate our breathable film products so the film will remain a complete barrier to bacteria.
Supported films can give big advantages in processing, allowing easier handling. Some end products incorporate the support carrier in their final presentation. With a stretchy thin film the support carrier will allow printing and adhesive coating. Paper carrier; can help give matt finish to film, it can be die cut. Flexi carriers; give high quality look and feel, can be conformable (used as part of application process), can be clear to aid positioning. Unsupported films can reduce process waste and are easy to process.
Our advanced knowledge and management of adhesives allows us to create a variety of adhesive technologies, suitable to a wide range of technical applications.
Our A16 adhesive is a specifically developed skin/medical adhesive that has long use in medical products and has ISO 10993 approval. It is a high-grab/instant tack that can be sterilised and will not give adhesive offset (adhesive left on the skin on removal). We have the facility to support product and adhesive optimisation through volunteer and panelwear trials.
Our adhesives are breathable which allows longer wear without skin maceration and we are developing a range low trauma adhesives that do not distress the skin surface on removal.
We have hot-melt adhesive coating facilities allowing us to screen/pattern coat. Patterned adhesive can give higher breathability and can be used to differentiate a product with its unique look.