UV Flexo Curable Primers
IVXXX - Digitech Primers
UV FLEXO CURABLE PRIMERS
DESCRIPTION
UV curable gloss and matt primer range for general purpose use including labels and packaging, offering improved adhesion of subsequently printed UV curable inks on a range of metallised substrates, as well as other synthetic substrates such as BOPP.
PROPERTIES
Gloss and matt versions available. Fast cure. Good chemical and product resistance. Excellent adhesion. Benzophenone-free. Please test for suitability for foil blocking/thermal transfer.
Unless the printed layer is a barrier to migration and there is no possibility of set off to the unprinted (food contact) surface, these primers are not intended for food packaging specifications.
For applications where the material is not a barrier, or set off is possible, we recommend the use of Low Migration inks & varnishes. Contact us for further details.
It must also be mentioned that the Printer/Converter and Packer/ Filler has legal responsibility to ensure compliance with the relevant legislation for food packaging
APPLICATION
Stir very well before use. General: Film weight 2-4 volume recommended, although higher film weights may be required for more difficult substrates. Flexo: Anilox 240-300 l/cm. Corona treatment of substrate may also be required. Do not over-treat as this may adversely affect adhesion and water resistance properties. Rollers EPDM. UV lamps minimum 80 w/cm. Press speeds 80-120m/min achievable
SUBSTRATES
Aluminium foils such as metallised polypropylene. The suitability for other uncoated synthetic substrates should be tested before printing.
RANGE
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Standard
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Premium
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UV Flexo
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Gloss
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EL195
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EL085
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Matt
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EL278
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UV L/Press / Litho
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Gloss
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EL226
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STORAGE & HANDLING
Store at temperatures between 50C and 250C. Protect from sunlight. In unopened containers EL085 has a shelf life of 6 months.
PACKAGING
5kgs
AUXILIARY PRODUCTS
RLA313 UV thinner. RLA350 UV wash up
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IVXXX - DIGITECH PRIMERS
DESCRIPTION
UV curable range of primers for use on varying substrates, to be subsequently overprinted with digital inks.
PROPERTIES
Flexo, screen and roller coat versions available. Gloss finish. Fast cure. Benzophenone, MBP, OHBP, BDK, ITX-free. Suitable for foil blocking/thermal transfer overprinting. Good chemical and product resistance. Excellent adhesion
Unless the printed layer is a barrier to migration and there is no possibility of set off to the unprinted (food contact) surface, IV Digitech primers are not intended for food packaging specifications.
For applications where the material is not a barrier, or set off is possible, we recommend the use of Low Migration inks & varnishes. Contact us for further details.
It must also be mentioned that the Printer/Converter and Packer/ Filler has legal responsibility to ensure compliance with the relevant legislation for food packaging.
The Digitech range of primers was initially designed for subsequent overprinting with HP Indigo digital inks where the use of pre-primed material, or priming by the printer with traditional waterbased primers (such as Digiprime or Emicote) is not preferred or available, or where these traditional primers do not give the required adhesion. These primers may help the adhesive properties of other digital inks to difficult substrates, but their efficiency should be tested first. Please contact our sales representative or the laboratory for advice on the best primer to use for any particular application.
APPLICATION
Stir well before use. Anilox 75 - 150 l/cm (200 - 300 l/in). Film weight 4 - 12 volume, dependent on substrate. Rollers EPDM. UV lamps minimum 80 w/cm.
SUBSTRATES
Disclaimer: -
It is critical that these primers are fully tested rigorously before use. There is an optimum film weight for each substrate, and the efficiency of primed substrate needs to be tested not only immediately, but also once ‘aged’ for 1 day, 1 week, 1 month, 6 months etc.
The click rate will also need to be assessed during trials to ensure the blanket life and ink usage rate is unaffected whilst using these products, which are still under trial.
Coated paper and board. Treated/primed polypropylene. Aluminium foils. Other substrates after testing
STORAGE & HANDLING
Store at temperatures between 50C and 250C. Protect from sunlight. In unopened containers these primers have a shelf life of 12 months.
RANGE
PACKAGING
5kgs
AUXILIARY PRODUCTS
RLA379 UV Defoamer (silicone-free). RLA350 UV Wash up
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