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FAQs

Answer:
The RoHS and WEEE Directives relate to the manufacture, use and disposal of electrical and electronic equipment. These Directives do not relate directly to printing inks. However, once a code is printed on a component this could be considered part of the component: we are introducing a range of inks which will not compromise the component’s RoHS and WEEE compliance.
Answer:

Yes, halogens can also act as a contaminant affecting product quality and reliability.

For example, one Domino customer – a Far Eastern hard disk drive manufacturer – says:

“Hard disk drive manufacturers have not only increased memory capacity in disk drive assemblies, but have also dramatically increased read / write rates. These performance advances have also greatly increased the sensitivity of the head / disk interface to participate and chemical contamination. Coupled with higher spindle speeds, which generate increased heat, materials inside the drive mechanism may outgas more, depositing residue on critical surfaces in the drive assemblies. These changes in head technology require a new breed of electronically clean components which control out gassing and limit corrosion due to trace contaminants.”

Answer:
All Continuous Ink Jet (CIJ) inks must be conductive in order to allow the droplets to be electrostatically deflected during printing. Traditionally some of the conductive salts added to the formulation have been halogenated salts.
Answer:
Domino has had ink samples analysed by an independent testing house, who tested with reference to IEC 62321/2 nd CDV (111/95/CDV) ‘procedures for the Determined of Levels of Regulated Substance in Electro-technical Products’. Levels of halogens were determined by the Ion Chromatograph (IC) method.
Answer:

Yes we do.

Domino is developing a range of halogen-free (and heavy-metal-free) inks. These inks are designed to fulfil the requirements of the electrical and electronics industries.

By ‘halogen-free’ we mean that no halogenated materials have been intentionally added to the inks. Also, we have such inks analysed, for example, by an independent testing house. We look for results demonstrating that no halogens are detected: the Method Detection Limit (MDL) for fluorine, chlorine, bromine and iodine respectively in the independent test procedure is 50 ppm.

Answer:
Black dyestuffs traditionally uses as the colourant in Continuous Ink Jet (CIJ) inks are often chromium (III)- based, and such dyes may contain trace levels of chromium (VI). As legislative and environmental demands increase, new ink formulations use alternative chrome-free dyestuffs, or substitute dyestuffs with pigments.
Answer:

Domino has had ink samples analysed by an independent testing house.

They tested with reference to IEC 62321/2 nd CDV (111/95/CDV) ‘Procedures for the Determination of Levels of Regulated Substances in Electrotechnical Products’. Levels of cadmium, lead and mercury were determined by ICP, and hexavalent chromium by the colorimetric method.

Answer:

Yes we do.

Many of our non-black inks have always been heavy metal free. Domino is developing a range of heavy-metal-free (and halogen-free) inks. These are designed to fulfil the requirements of the electrical and electronics industries.

By ‘heavy metal-free’ we mean that no heavy metal materials have been intentionally added to the inks. Also, we have such inks analysed, for example, by an independent testing house. We look for results demonstrating that no heavy metals are detected: the Method Detection Limit (MDL) for cadmium, lead, mercury and hexavalent chromium in the independent test procedure is 2ppm. The RoHS limit for cadmium is 100ppm and for lead, mercury and hexavalent chromium is 1000ppm.

Answer:
Yes. Bar codes can be printed using our Print and Apply Labeller, Thermal Transfer Overprinter (TTO), Ink Jet,  and Laser products. But please seek advice for the best solution as the recommendation will depend on the required bar code specification and application.
Answer:
Please use the ‘MSDS’ button on Domino home page to access Material Safety Data Sheet information or follow this link|.
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