Rondepak is a solvent-based Screen Ink formulated decorating polythene and polypropylene containers. They are supplied as a single component ink, but offer the level of product resistance and gloss normally associated with 2-pack products.
A wide range of standard colours are available. If you have a specific requirement for a special match colour SISS offer a full colour matching service either to internationally recognised standards or customers own patterns.
It is essential that Polyolefin surfaces are treated prior to printing to enable ink adhesion. For most containers, flame treatment is the preferred method, and should be carried out as short a time as possible before printing ideally in-line. The degree of surface treatment should be assessed, before a print run, using proprietary test methods or by making and checking test prints.
Is suitability MUST be checked prior to printing. Rondepak inks are not suitable for outdoor applications.
Stencils & Meshes
All types of solvent resistant photographic direct stencil materials are suitable – emulsion or capillary film. Although all types of mesh are suitable, monofilament Polyester, in the range 100 – 140T will give the best results.
Rondepak inks are designed to print straight from the can, but if reduction is required, Fast reducer 10-1-0007, Reducer 10-1-0006, Retarder 10-1-0005 or a combination of these can be used to thin the ink to desired printing viscosity.
Drying time will depend upon a number of factors, such as the film weight deposited, the type of thinner used and the drying temperature. As a guide, prints should dry 1 – 2 minutes at 80 – 90 Degrees C. They may also be dried by hot air blast or flame drying. Rondepak inks will, if necessary dry at room temperature and full resistance properties will be obtained.
Providing that adequate surface treatment is obtained, Rondepak inks give excellent resistance to a wide variety of products, including detergents, oils and cosmetics.
Rondepak inks can be superimposed successfully, providing that there is not excessive drying between colours. Over-stoving or a long period of time between prints could result in poor intercoat adhesion.
Reducer 10-1-0006 or G P Cleaner 10-1-0011 should be used.
IT IS ESSENTIAL THAT SCREENS AND EQUIPMENT ARE CLEANED IMMEDIATELY, AS “DRIED-IN” INK WILL NOT BE SOLUBLE IN CONVENTIONAL SOLVENTS
Rondepak inks will remain useable for at least 3 months, providing they are stored in a cool place with the lid firmly sealed.
Safety & Handling
Full handling advice is given on a separate H & S Data sheet. Rondepak inks are formulated to be free of control by the 1972 highly flammable liquids regulation.
It is imperative that users fully test their application before commencing a production run. We cannot guarantee the finished results as we have no control over individual operating conditions and production procedures. There is often considerable variance in substrate. While technical information and advice on the use of this product is given in good faith, the user bears sole responsibility for selecting the appropriate product for their end use requirements. Users are also responsible for testing to determine that our product will perform as expected during the printed item’s entire life-cycle from printing, post print processing and shipment to end use. Any liability associated with the use of this product is limited to the value of the product purchased from SISS.