UV MEL Screen Ink (UV Curable Ink for Blu-ray Disc and HD DVD)

Teikoku UV MEL ink is UV curable screen printing ink designed for label printing of Blu-ray Disc (BD-R/BD-RE) and HD DVD, the next generation of optical discs. It has superior adhesion to Polycarbonate with extremely low shrinkage and small tilting angle. It's high quality grade provides suitability for DVD media printing, and small tilting angle for long-term storage.

Application

♦ Label printing of BD-R/BD-RE & HD DVD media (printing surface is PC).
♦ Label printing of DVD-ROM/DVD-RAM/DVD ± R/DVD ± RW media.
♦ Printing on PC substrate.

Special Features

♦ Superior adhesion to Polycarbonate.
♦ Superior suitability for Blu-ray Disc, HD DVD, DVD media with extremely low ink shrinkage
♦ Suitability for high speed printing, depending on CD printer.
♦ Hard surface finish of ink layer provides superior abrasion resistance.
♦ Low odor, Low skin irritation.

Thinning & Cleaning

♦ Thinning is not required for standard applications. High-speed printing is possible without thinning.
♦ Use RE-804 Reducer up to 5% when required.
♦ "Teikoku Screen Cleaner N" is recommended to clean the stencil. Do not use Reducer for cleaning of stencil.

Printing

♦ Stir well before every use.
♦ 300~350 mesh monofilament stencil is recommended.
♦ Printing mesh may change depending on the color matching ink (metallic or pearl etc.).
♦ Coverage with 350 meshes will be 50-60 m2 /kg.

Drying/Curing

♦ Curability and adhesion of UV MEL ink may be affected by:
1) Lower ink layer's color, 2) Ink layer, 3) Type, grade, color of substrate, 4) Multi-layer printing,
5) Type of UV lamp and exposure conditions, 6) Treatment degree of substrate.
♦ 1.2 seconds Tact speed, 140W/cm are our standards with CD printing machine.
♦ Accumulated energy is about 350 mJ/cm2.Peak Power is 400 mW/cm2.

Additives

♦ UV Thixotropic agent: Use to increase the viscosity by adding up to 2%.

Standard Colors

000 Medium 277 Opaque Reddish Yellow 616 White
011 Matte Base 391 Blue 791 Green
162 Red 525 Orange 821 Violet
240 Light Yellow 581 Magenta 911 Black

♦ Wide range of color matching (including metallic and pearl colors) is possible.

Attention

Ink is stabile for 1 year from shipping.
Adhesion testing must be done at your site with actual substrate. Slight change in substrate, process and printing might affect the results.

Safety and Handling

Not Flammable.
Use safety gloves and eyeglasses to protect skin and eyes. If the ink or coating contacts the skin, wash with plenty of water and soap. In case of contact with the eyes, wash with plenty of water and consult with a doctor. Containers should be tightly closed immediately after use, and stored in a dark and cool place.
SDS is available. Please ask for a copy, and read it carefully before handling materials. Please follow the instructions.

Physical Properties and Resistance of UV MEL


Property Test Conditions Result
Adhesion JIS K 5600-5-6 (Crosscut), cellophane tape and peel. No Peeling off
Pencil Hardness Pencil fixed 45 degree to ink layer with 500g weight, and stroke 300mm/min. hardness of ink layer checked for scratching. F
Alcohol Resistance Cotton dipped into 80% Ethanol and rubbed the ink layer 100 times back and forth with 6000mm/min, 500g weight on Abrasion Test machine. No defect
Eraser Abrasion Rubbing with eraser 100 times by 500g weights, with 1 back and forth in 2 seconds speed. No defect
Oil Resistance Hand cream is applied to printed surface thinly, and cellophane tape adhesion test applied after leaving it under 50°C-98%RH for 24 hours. No defect
Salty Water Resistance Printed sample dipped into edible salt containing water and cellophane tape adhesion test applied after leaving it under 50°C-98%RH for 24 hours. No defect
Artificial Sweat drop Resistance Printed sample dipped into artificial sweat and cellophane tape adhesion test applied after leaving it under 50°C-98%RH for 24 hours. No defect
High-speed printing suitability CD printer printing speed Tact 1.0~1.8 seconds Response is Possible

* Substrate:Blu-ray Disc
* Stencil Mesh:T-350
* Curing Conditions:1 (One) 140W/cm Metal Halide Lamp, Tact speed 1.2 sec. (50 pieces/min.)
* Below mentioned properties are test results for Lab. purposes. Results cannot be guaranteed.


Revised 2007.12.07 Translated 2008.02.04
Teikoku Printing Inks TOP Teikoku Printing Inks Mfg, Co., Ltd./Laboratory
Tel: +81-3-3800-6760, Fax: +81-3-3800-6603
E-mail:saletki@teikokuink.com
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