Ta-t70-e

Technical Data Sheet
Pad printing inks
APPLICATION FIELDS:
Euro-Colours / 4-Colour Process Printing Inks:
Versatile one or two component ink for pad printing on For 4-colour process printing according to DIN 16538, ABS, acrylic glass, rigid PVC, lacquered surfaces, metal, paper, carton, polyamide, polycarbonate, pre-treated poly- ethylene (PE) and polypropylene (PP), polyurethane as well as two component ink for PET/ PETG. Substrates may differ in their chemical structure or method of manufacture. A test for suitability must always be carried out before printing. Antistatic, Mould Release Agents and Slip Addi-tives may have negative effects on adhesion, and should Bronze Colours:
be detected and removed prior to printing. see separate "Bronze Colours" leaflet CHARACTERISTICS:
ADDITIONAL PRODUCTS:
This glossy, physically drying and chemical reactive pad printing ink exhibits good mechanical and chemical resis- Raster paste can be added to reduce “Dot Gain” and to tance, as well as a good flexibility. The colour shades of T70 are light fast, weather resistant and guarantee high opacity. A special product test is recommended prior to The raw materials used meet with the limits stipulated by the EEC regulation EN 71 (Safety of Toys), part 3 (Migra- ADDITIVES:
tion of Certain Elements) of December 1994. Thinner:
RANGE OF COLOURS:
Prior to production, the pad printing ink has to be adjusted The basic ink mixing system consists of 12 basic colours to the printing viscosity by the addition of thinner. and may be used for the mixing of a wide colour shade range. Field proven mixing formulations exist for Pantone, Thinner, very fast (addition: 15 - 25 %) Basic colours:
While printing on plastics such as ABS, acrylic glass and styrene tension corrosion can appear while using certain solvents. In order to avoid such effect the special thinner Retarder
Retarder will influence the drying time of the ink under different climate conditions. Retarder VZ 35928 is a me- dium drying retarder, VZ 34392 is a very slow drying re- tarder. While using the ink under extreme climate condi- tions (Temperature higher than 28°C) it is recommended to use the retarder VZ 35928 as a thinner to adjust the vis- Special Products:
Retarder, standard (addition 5 – 10 %) The above statements are accurate to our best knowledge and belief. However, due to the great number of possible influences during the manufac-ture of the substrate and the variation in the application process we suggest that suitability testing take place under actual conditions before produc-tion. No legally binding guarantee of certain properties or of the suitability for a definite application purpose can be derived from the above informa-tion. It must be noted that an excessive addition of retarder may Cliché/Printing Equipment/Pad:
negatively influence the ink transfer and bulk goods resis- The T70 series can be used with all pad printing machines tance, due to the slow evaporation of the retarder. with clichés and pads currently used for industrial applica- tions. However, it has to be noted that type (screen) and Retarder VZ 34392 should only be used in conjunction with etching depth of the cliché, mould and hardness of the pad, the adjustment of the ink (addition of thinner and/or retarder) as well as printing speed may influence the print- Special Retarder, very slow (addition max. 10%) 100VR1170 Hardener:
Curing Conditions:
Hardener 100VR1433 is the standard hardener. The mix- ing ratio is 10 parts of ink with 1 part of hardener. At room At room temperatures (21° C) the inks of T 70 series are grip dry within 5 minutes. While adding hardener to the ink, ° C a pot life of approximately 12 hours drying of the ink will take approximately 36 hours at room temperature. To accelerate the ink drying onto the sub- strate the use of hot air blower or infrared lamps is recom- 10 parts of ink, with 1 part of hardener mended. It must be noted that after heat treatment a cool- ing section must be installed in order to avoid that the Please note that the final chemical and physical resistance of the ink is only achieved after 36 hours at room tempera-ture of 20° C. CLEANING:
During processing and drying of the printed ink, the tem- Clichés, squeegees and so on can be cleaned with the perature should not be lower than 15° C otherwise the RUCO Universal cleaner 32 335. It must be noted that the chemical crosslinking is stopped. Also avoid high humidity pad does not come into contact with solvents. For the for several hours after printing as the hardener is sensitive cleaning of the pad please see to the application refer- to humidity. While using hardener please note that multi- ences of the pad manufacturers. If cleaning is not per- colour jobs have to be printed during 36 hours. The com- formed by fully automatic cleaning equipment, protective pletely dried ink can not be overprinted. Levelling Agent:
The levelling of the ink surface can be optimised by the use of a levelling agent. It must be noted that excessive addition of levelling agent can have a negative influence on the overprintability. SHELF LIFE:
A shelf life of 12 months is guaranteed when storing the inks at 21° C and in the original packing container. At higher storage temperatures the shelf life will be reduced. PROCESSING INSTRUCTIONS:
PRECAUTIONS:
Pre-treatment:
For further information on the safety, storage and environ-mental aspects concerning these products, please refer to Pre-treatment of polyolefines (PE/PP) must be performed by Flame Treatment or CORONA-discharge in order to Additional technical information may be obtained from our insure the adhesion of the UV screen printing ink to the staff of the Technical Application Department. substrate. In case of PE, surface tension needs to be at least 42 mN/m (Dynes/cm), in case of PP at least 52 mN/m The above statements are accurate to our best knowledge and belief. However, due to the great number of possible influences during the manufac-ture of the substrate and the variation in the application process we suggest that suitability testing take place under actual conditions before produc-tion. No legally binding guarantee of certain properties or of the suitability for a definite application purpose can be derived from the above informa-tion.

Source: http://www.tampon-mix.hu/www.tampon-mix.hu/Upload/tamponmix/file/Ruco/TA-T70-E.pdf