ITW Trans Tech: Pad Printing Ink: Type UVA

INSTRUCTIONS:

NOTE: Read Material Safety Data Sheet (MSDS)
Prior To Use

Ink Type UVA is supplied in a paste form. The ink is formulated for open ink well & sealed ink cup systems. Recommended cliché depth for pad printing is 24 microns. The ink has a printable range between 20 to 30 microns, depending on application. The ink can be applied single hit for opaque colors. One or two hits can be used on transparent colors or clear hard coats.

The ink viscosity may be adjusted with thinner as needed. Slower thinner may be added to slow drying rate during printing ( normally for high room temperatures or multi-color use ).

CAUTION: UV ink is light-reactive. Avoid long term direct exposure to UV light when using. Yellow Plexiglas machine guarding is advised. Recommended room temperature 70-78 degrees F. Recommended room humidity 30-50 %

ADDITIVES: (See Additives Chart for more listings)

Thinners:
THINNER B (5 to 12 % by weight) Faster
VD THINNER (5 To 10 % by weight) Medium
BGA THINNER (5 To 10 % by weight) Slower

DRYING & CURING: (See Ink Drying & Curing Times Chart )
Ink TYPE UVA dries to the touch within 15-30 seconds at room temperature.

PREHEAT:
Ink performance may be increased with IR treatment immediately before UV light curing.

UV LIGHT CURING:
• UV Exposure: Expose to a medium pressure, Mercury vapor type lamp operating at a minimum of 200W per inch input power.
• Minimum Required Intensities:
40mW /cm² @ 254 nm
150mW /cm² @ 365 nm
• Minimum Exposure Energy:
1.6 joules / cm² measured with a 320 nm – 390 nm UV radiometer ( For increased wear resistance, up to 3 joules may be used).
• Irradiation Time: Requires under 5 seconds (depending on application).
• Conveyor speed: should be 4 – 12 feet / minute ( depending on application and thickness of ink).

COLORS: (See Color Availability Chart )
Ink Type UVA is available in:
• 23 Standard Opaque Colors
• Custom Colors Available Upon Request
• Clear Hardcoat in matte and gloss finishes available
• Process Colors
• Standard Metallic Colors

NT (non-toxic) Inks
Our NT Series Inks conform to US C.O.N.E.G. Legislation and European Standard EN 71, part 3 Safety of Toys (1989). For special applications (examples: Medical, Automotive, MIL-STD) please contact us.

USE & STORAGE INFORMATION
(For more detailed information see Material Safety Data Sheet (MSDS) for Type UVA Ink.

Ink Type UVA:
Stir ink thoroughly before removing from container. Reseal lid tightly after using.
Shelf Life: Six months (in original sealed container)

THINNER: Reseal lid tightly after using. Shelf Life: 2 Years ( Original sealed container )
SPECIAL ADDITIVES: Reseal lid tightly after using. Shelf Life: 2 Years (Original sealed container )
STORAGE OF ALL PRODUCTS: At room temperature 60 to 80 Degrees F with low humidity.

Ink Type UVA:
Recommended Printing Substrates
# : Indicates substrate may require pretreatment.

Substrate: Name / Chemical Name	ASTM / ISO Abbreviation	Plastics Family	Trade Name
THERMOPLASTICS	.	.	.
Acrylonitrile-Butadiene-Styrene #	ABS	ABS	Cycolac
Polycarbonate #	PC	Polycarbonate	Lexan
Styrene Acrylonitrile	SAN	Acrylic	.
Polyurethane #	PU	Urethane	.
NOTE: All grades of substrate materials should be evaluated to determine ink performance.	.	.	.