Feb, 2003

RC SL 61 SERIES

PREFAC

RC SL 61 SERIES is UV curable ink with semi-gloss finish. The ink film is flexible and its curing is excellent despite of its high density. SL INK is recommended to be printed on thin film.

APPLICATIONS

Polycarbonate, treated PET film, A-PET film, vinyl film, vinyl stickers, paper

CHARACTERISTICS

1. Excellent curing. Ink film is flexible.
2. Cured ink film is vacuum-formable.
3. Highly opaque.
4. Excellent adhesion. Over-printability is good.
5. Fine patterns can be excellently reproduced. The reproducibility of halftone ink is superb.
6. The effect to the squeegee is less compared with other ink. Stable on the screen.

HOW TO USE

1. Stir well before use.
2. Add 61 REDUCER up to 10% to lower viscosity. When the addition exceeds 10%, add additive JAR-15 as well by 1-3%.(Both 42 Reducer and 47 Reducer can be added to this ink.)
3. Add 61-00 Matt Clear by 20-30% to increase viscosity. Additive JA-244 and JAR-20 can also make viscosity higher. Insufficient curing may happen to colored ink when the ink film becomes thick.
4. Insufficient curing may occur when silver or gold color is made using 61-00 Clear ink.
   In this case, add additive JAR-15 to improve curability.
5. Standard curing conditions:
   Mesh : 300-350 meshes/inch, Sol thickness : less than 10 microns
   Metal halide lamps 80W/cm
   Conveyor speed : 10m/min
   Integral light : approx.150 mJ/cm²
   Peak Power : 300mW/cm²
   Notes : These conditions change depending on the substrate and color.

COVERAGE

70-80 ㎡/Kg

TYPE OF PACKING

1 kg PLASTIC CONTAINER

COLOR SHADES

Standard colors

white, opaque white, lemon yellow, yellow, deep yellow, orange, bright red, red, geranium, pink, violet, blue, deep blue, green, marine blue, black

Clear colors

61-00 clear, 61-00 matt clear, HFT matt clear, UB-1 matt clear, UB-2 matt clear

Halftone colors

• Standard type Halftone/lemon yellow, magenta, cyan, black..
• Matt type Halftone-N/ lemon yellow, magenta, cyan, black

PRECAUTIONS

1. Please refer to the literature "UV INK" for general precautions for UV ink.
2. Please refer to MSDS before use.
3. Be sure to do trial print before commercial run to confirm that the product fits the purposes.

PHYSICAL PROPERTIES

• Substrate : Polycarbonate(0.2mm sheet)
• Meshes : Polyester 350 meshes/inch
• Coating thickness : 10 microns
• Curing : One metal halide lamp 80W/cm
  Conveyor speed - 10m/min. (Integral light : 150mJ/cm², Peak Power : 300mW/cm²)

TEST ITEMS	TEST METHODS	RESULTS
Adhesion	Cross-hatch, tape-peeling test	100/100, Passed
Hardness	JIS K-5400 8.4 Pencil hardness	B-HB
Bending resistance	JIS K-5400 8.1	Excellent
Impact resistance	JIS K-5400 8.3 Du Pont Impact tester 1/2 inch, 300 grams, 20 cm	Passed
Over-printability	Adhesion test with 3 colors	100/100 Passed
Heat resistance	70°C(158°F), 240 hours	Passed
Humidity resistance	60°C(140°F), 95%RH, 240 hours	Passed
Coldness resistance	-20°C(-4°F), 240 hours	Passed
Water-proofness	Immersion in 40°C(104°F) water for 24 hours	Passed
Alcohol resistance	Rubbing test with 99.5% ethanol	Gloss decreased after 50 rubs
Weathering resistance	400 hours by Sunshine-weather meter	Passed

1. Weathering resistance depends on the color. Please refer to lightfastness chart before use.
2. Information given here is gained from our laboratory testing, and no firm guarantee is implied.