PRISM GFW SHEETFED OFFSET INKS

TECHNICAL INFORMATION

PRISM GFW inks are formulated on the latest technology to meet the needs of the commercial and carton printer, giving good gloss and print quality on a wide range of substrates and presses, from fast modern multicolor machines to slower two and four color presses.

SUBSTRATES:

Printability is good on a wide range of coated and uncoated paper and board. The inks are not designed for use on non-absorbent substrates such as metallized paper and plastics.

PRESS PERFORMANCE:

PRISM GFW inks give trouble free printing with a wide range of founts and Iso Propanol contents. The inks have extended press stability which can eliminate the need for overnight duct wash-up.

SETTING AND STACKPERFORMANCE:

PRISM GFW inks are fast setting, allowing minimum use of spray powder, although work with high coverage or highly coated stocks may require extra care. The inks have excellent fast work and turn properties with good gloss, allowing quick turn round of jobs.

DRYING:

Drying is quick and effective with or without IR assistance. If this is used we would suggest keeping stack temperatures below 40 °C, to avoid re-softening of the inks.

RUB RESISTANCE:

PRISM GFW inks will give satisfactory scuff resistance on a wide range of substrates. However, some materials are very aggressive, and where no protective varnish is to be used, the printer should be satisfied that abrasion resistance will be adequate, or obtain advice from Coates Lorilleux.

VARNISH AND LAMINATION:

Varnishing with Offset, spirit and water based varnishes is possible. However, attention should be given to the resistance properties of the inks used, and the varnishing done under controlled conditions. Work should be thoroughly aired before spirit varnishing or laminating. Specific requirements should be given to Coates Lorilleux when ordering.

LIGHTFASTNESS:

PRISM GFW inks will have a reasonable degree of light fastness, but some colors may not withstand prolonged exposure to sunlight. In particular, tints will have lower light fastness than the equivalent full strength color. If lightfast inks are required this should be specified at time of ordering.

OTHER RESISTANCE PROPERTIES:

Pigments used are not necessarily resistant to all post printing conditions that may be encountered. Thus, if specific properties are required, such as soap resistance, this should be specified at time of order. It should be noted that the resistance properties of blends may differ from those of the component colors.

FOUNT SOLUTION:

We recommend that manufactures instructions are followed when using fount additives, and that Isopropanol content is not more than 15%. The PH and conductivity should be monitored and the PH not allowed to drop below 4.5. Damper settings should also be kept at the minimum for clean printing. Excessive or very acidic found can retard inks drying, giving poor scuff resistance or set off. The fount and press temperature should also be controlled to avoid over emulsification.

BLANKETS & ROLLERS:

Any oil resistant blanket and synthetic rubber or polyurethane rollers are suitable for use with Primanova inks.

INK ADJUSTMENT:

PRISM GFW inks are supplied press ready. However, if consistency or tack must be adjusted, small amounts of suitable reducers can be added. Additions should not exceed 5% of the ink.

WASH UP:

White petrol can be used, although specialized cleaners may prolong the life of blankets and rollers. Although under normal conditions the inks will be overnight duct stable, we do recommend daily cleaning of rollers and blankets.

Note:

This information has been carefully compiled from experience gained in field conditions and detailed laboratory testing. However, the product's performance and it's suitability for the customer's purchase depend on the particular conditions of use and the material being printed. We recommend that customers satisfy themselves that each product meets their requirements in all respects before commencing a print run. Since we cannot anticipate or control the conditions under which our products are used, it is not possible to guarantee their performance. We would point out that the information provided here is only a recommendation, and may need to be altered to suit the conditions and efficiency of the equipment employed. Coates Lorilleux ink products are not designed for use in conjunction with those of any other ink-maker or similar supplier unless agreed to in writing.