Polybond inks are a range of single pack screen inks formulated for printing treated polyethylene and polypropylene bottles. etc.
These inks are normally used as supplied, thinned 10-20% with one of the recommended thinners. For certain applications, where product resistance of the ink needs to be developed soon after printing, Polybond Catalyst is available.
|Pre-treatment||For satisfactory adhesion to be maintained it is essential that containers are pre-treated, preferably immediately prior to the printing operation. Propane or Butane/Air flame pre-treatments are recommended. Because of variations in polyethylene container mouldings, a test should be carried out on each batch of containers prior to the production run.|
|Printing||All types of stencil materials are suitable except Stenplex Amber or lacquer adhering films. Meshes 90-140T screens. A coverage of 23-43 sq m/kg can be expected with a 110T mesh.|
|Catalysed Inks||When it is necessary to use the catalyst, the following mixing ratios should be used, prior to thinning:|
|Polybond inks 95 parts by weight|
|Polybond Catalyst 5 parts by weight|
|This mixture will give a pot life of approximately 24 hours. It is recommended that only sufficient is mixed for each days printing to avoid thickening.|
|Thinners||All types of stencil materials are suitable except Stenplex Amber or lacquer adhering films. Meshes 90-140T screens. A coverage of 23-43 sq m/kg can be expected with a 110T mesh.|
|Drying||Polybond inks will dry in a hot air blast oven, infra red drier within a few seconds. Prints should be aged for 24 hours at room temperature before testing for product resistance.|
|Colours||See price list for range of colours available.|
|Uses||Treated polyethylene and polypropylene containers, including in-line filling plants for products such as bleach, washing up liquid and lubricating oils. Polybond inks are not recommended for products containing Alcohol, such as perfumes and lotions.|