The pad printing book - microPrint

1 The pad printing bookmicroPrint LC GmbHAnthoptstasse 9CH-8222 BeringenSwitzerlandPhone: ++41 (0) 52 624 50 59 Fax: ++41 (0) 52 624 50 22 Email: 2 The pad printing book Content1 General Background - The Process Entry Typical pad printing Examples History The Process 92 pad printing today Ink Open Ink System Closed Cup Ink System Pad Machine Drives

2 Process Flow and Peripherals Viscomat Machine Cycle Ambient Temperature Automatic Pad Cleaning 173 Machine systems Open or Closed System Classification machine systems 194 Automation Components Components for indexing table Pad transportation units Pad shift units Round printing units With simple traversing table and rotary print part pick-and-place system With Round printing Pad and Servo Drive for all print movements Round Print Machine for printing Multi-Ink Individual Pictures on a Round Body.

3 Print part pick-and-place systems Vacuum print part retaining and ejection system XY cross tables Indexing tables Traversing tables Drying units Hot air drying IR heater Flash heater Synchronized drying system UV drying Cleaning unit 395 Clich s Clich s Types Steel clich s Sheet metal clich s Plastic clich s Clich making Film 43microPrint LC GmbHAnthoptstasse 9CH-8222 BeringenSwitzerlandPhone: ++41 (0) 52 624 50 59 Fax: ++41 (0) 52 624 50 22 Email.

4 3 The pad printing book Film specifications Films for Four-Color-Reproduction Making steel or steel metal clich s Making plastic clich s 476 Pads General informations Pad selection Pad selection according to pad form According to pad hardness Rule of Thumb Special designs Pad treatment Storage Cleaning Pad life 527 Inks for pad printing General Binders Colorant Special additives Solvents

5 Drying Physical drying Chemical drying Oxidative drying Summary Single-component-ink 2-component-ink Special inks UV inks Fluorescent colors Phosphorescent inks Thermal setting inks Sublimation inks Inks based on water Food inks Ink selection/ print material General Acry1ic glass Bakelite, melamine resin Metal, glass, porcelain.

6 Chrome steel Polyacetate Polycarbonate Polyester Polyethylene, polypropylene Polystyrene Ink preparation and transfer Quality controls Miscellaneous Viscosity Pigment grain size Degree of glossiness Surface hardness 59microPrint LC GmbHAnthoptstasse 9CH-8222 BeringenSwitzerlandPhone: ++41 (0) 52 624 50 59 Fax.

7 ++41 (0) 52 624 50 22 Email: 4 The pad printing book Fingernail test Scotch tape test Cross hatch cutter test Multicolor print DIN safety data sheet Safety regulations Safety regulations for manufacture and transportation Safety regulations for processing Safety regulations for the color on the print material Summary Subdivision DIN safety data sheet Product description Chemical characterization Form Color

8 Odor Physical and safety regulating data Change in state Density, bulk density Vapor pressure Viscosity Water solubility Flashpoint Inflammation temperature 648 pad printing Technology The pad printing window Pad print Hardware The Pad Clich Ink

9 Trouble shooting Electrostatic charge Static inhibitor Ionization unit Pre-treatment Sessile drop method Pendant drop method Pre-treatment Chemical pre-treatment Flame pre-treatment Corona pre-treatment Plasma pre-treatment Pad does not take on ink film Pad releases the ink film improperly No proper flow of the ink film Solid areas are not completely printed Insufficient opacity Small inclusions of air are visible Printings contours are not sharp printing image is blurred Fine lines bleed into each other Half-tone dots are visible 85microPrint LC GmbHAnthoptstasse 9CH-8222 BeringenSwitzerlandPhone: ++41 (0) 52 624 50 59 Fax: ++41 (0) 52 624 50 22 Email: 5 The pad printing book Splatters at the edges Colour does not correspond with template Distortion of the printed image Index of multi-color printings does not fit Ink film does not adhere to the product Clich isn't properly "doctored" Simple Clich and Cup Test 92microPrint LC GmbHAnthoptstasse 9CH-8222 BeringenSwitzerlandPhone: ++41 (0) 52 624 50 59 Fax.

10 ++41 (0) 52 624 50 22 Email: 6 The pad printing book / General Background - The Process Entry / Typical pad printing Examples1 General Background - The Process EntrySince the late 1960 s an old printing method, which had been particularly well established in the watch-making industry, has been experiencing an unexpected boom. pad printing was discovered for newer, broader applications and with the help of silicone pads and new machine constructions it truly blossomed. pad printing machine manufacturers sprung up like mushrooms and satisfied the real market need for printing and decorating parts in a simple and inexpensive way. pad printing allows new designing possibilities for engineers and designers and as a result, the prod-ucts are becoming more attractive and , pad printing has reached a technical advanced state and the range is quite diversified.