PAD INK

PAD INK

The HFS-PAD series is a family of inks designed specifically for pad printing. It offers excellent performance in transfer-printing with outstanding rub resistance, while preventing drawing phenomena common in pad printing.

Specifications
Ink type Polyester-based two-part reaction type or one-pack thermal curing inks.
Usage Viable for printing on plastic (ABS, PMMA, PC, PET, etc.), coated metals, UV-coated and acid-resistant aluminium substrates.
Features • Semi-gloss finish • Excellent rub resistance • Manufactured according to major corporate standards (Cl no more than 700ppm, Br no more than 700ppm, total halogen contents no more than 1100ppm)
Diluent Standard solvent: T-640 Slow-dry solvent: T-952
Mixing ratio Mix in 10~15% D-Hardener
Drying time While air-drying is possible, curing at 80°C x 30min is recommended to ensure optimal performance.
Wash-up T-15/T-31
Notes • Adhesion and abrasion may vary due to substrate differences. Caution is advised. • Use CARE 39 (no more than 10%) if adjustments to printability are required.
Reference Data (Results below are from tests performed by Seiko Advance, and not to be taken as performance guarantees)
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The SG740 series is a family of two-part reaction inks that dry more quickly than other two-part reaction inks for higher work efficiency. Their outstanding adhesion power and superb moisture and solvent resistance make them ideal for printing over treated POM (polyacetal), treated PE, treated PP, ABS, acrylic, PVC and other materials. SG740 is a sister series to the VIC series.

Specifications
Ink type Quick-drying, two-part reaction ink using an isocyanate hardener.
Usage Outstanding adhesion power makes them ideal for printing over treated PP and PE, treated POM (polyacetal) coats (especially urethane coats), ABS acrylic, PVC, nylon cloth, and other materials.
Finish Generally semi-gloss finish and outstanding resistance with solvents although the quality varies with the color.
Drying time Natural or thermal curing. Sets to touch in 40 minutes at room temperature (25°C), hard dry in 1 week at room temperature or 30 minutes by thermal curing (80°C) + 2 days air drying. Heat treatment at 120°C for 20 minutes is recommended for best results on metals.
Mixing ratios Add hardener (transparent) to the main agent (colored) at the ratio of 1:10, and agitate them well before use. Use within the pot life of 6-8 hours after which the mixture will turn to gel or lose its designed physical properties.
Diluent Use the following three types of solvents (10-15% weight) to adjust viscosity: standard solvent (T-926), slow-dry solvent (T-927), retarder (T-980).
Wash-up Use T-15 for economical washing of the plate and other tools.
Performance Performance is identical to that of the VIC series.
Caution • The hardener for the SG740 series is extremely sensitive to moisture and should be used as soon as it is unpacked. Foaming and blisters may result under some printing conditions. Add CARE 20 or CARE 50 (1-2%) to the ink to prevent foaming or blisters. • The printed film is somewhat thinner compared to that of the VIC series. • Use of gold metallic powder is not recommended as it will cause a chemical reaction leading to gelation. There is no problem with silver metallic powders.
Test Conditions
Material Treated PP
Ink VIC-120, 710, SG740-120, 710
VIC(Z) and SG740 Ink Film Test Results
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