Electrical equipment and apparatus

Tender description

This Contract is for the supply, installation and commissioning of the equipment specified below, including packing, shipping, delivery and training of users. Where applicable, the supply of consumables / spare and replacement parts is also to be included in the scope of this Contract. CPI would like to acquire a roll to roll system to replace its incumbent equipment. A description of this incumbent equipment is as follows: the roll-to-roll print system has 6 modules, together with a control system and user interface enabling control of the print heads together with control of the roll-to-roll handling. — Module 1 contains the unwind section for rolls of web on 3 inch cores with a splice table enabling easy interchange of substrate, — Module 2 contains a bank of four 1 000 pixel print heads, which at the current resolution of 360 DPI equates to a print width of approximately 282 mm, — Module 3 is the initial UV tack cure of the printed ink, located immediately after the print heads; this requires a UV power of >6 W/cm2, wavelength 350 nm peak (40 nm width, current lamps lead doped), — Module 4 utilises an extracted IR oven capable of temperatures up to 110 oC. The ovenlength is 73 cm, — Module 5 provides a full UV cure at 24 W/cm2, 350 nm (40 nm width, current lamps lead doped). This UV module also has a cooled UPW jacket around the UV bulb in order to remove the IR energy, — Module 6 contains the rewind section where the printed product is wound onto 3 inch cores. Currently we have to pass every sample through the tool twice. Once for initial print and cure, and then a second time for additional curing. It would be highly desirable (as in cutting the run time in half and eliminating a lot of manual handling) to be able to do this in one pass. To fully mirror the current process this would be an additional UV cure at 24 W/cm2 and additional IR cure at 105 oC and final UV cure of 24 W/cm2. However it is quite possible this could be reduced but that would require some development. CPI currently operates a reel-to-reel Nilpeter MO4/FA4 printing press which has the capability to perform offsetlitho, rotary screen, flexographic and gravure printing processes as well as die cut, lamination and sheeting operations. The multi-process narrow web Nilpeter press is available for development work, prototyping,scale-up and pilot production. It provides a test bed to allow clients to develop intelligent print for a variety of applications such as labels, switches and sensors, flexible packaging, radio frequency identification (RFID) and near field communication (NFC) There is now a requirement to add further capability with Inkjet technology as per the specification supplied in the tender. This additional inkjet hardware will require the current Nilpeter to be modified in such a way as maintain its current capability whilst further enhancing it with Inkjet technology.