ISX Screen Ink (One-pack screen ink for Insert Molding)
Teikoku ISX Screen Ink is a one pack, solvent-type insert molding ink with far superior elongation characteristics in comparison to previous insert molding inks.
ISX ink has good adhesion to Polycarbonate Sheet (PC), PC-type injection molding resins, and is suitable for Film Insert Molding (FIM) without an injection molding binder. ISX demonstrates its true abilities in sheet forming processes such as pneumatic forming and vacuum forming.
ISX ink is suitable for single-piece molded part production in a wide range of applications like automobile interiors, electronic nameplates, and daily commodities.
Application
♦ Design printing to PC Sheet, Treated PC/PBT film
♦ Suitable Injection Forming Resins: PC, PC/ABS, ABS, PMMA (Acrylic)
Special Features
♦ Environmentally friendly ink: Free of Benzene, Toluene, Xylene, Cyclohexanone, and Isophorone.
♦ Good workability as it is a one pack, heat-curing ink with high temperature and pressure forming resistance.
♦ Superior stretching capability in the forming process.
♦ Standard colors with good heat resistance and good adhesion to injected resin.
♦ Ability to coat only specifically demarcated parts with screen-printing.
Thinning, Mixing , Cleaning
♦ Stir well before every use.
♦ Use Z-705 (Standard) thinners with 5~15% dilution. 10% dilution is recommended for standard applications.
♦ Avoid excessive thinning as it may decrease printability, forming suitability, and adhesion of the ink and may cause lack of opacity or pinholes.
♦ Do not use other solvents as they cause blocking and lack of adhesion.
♦ Screen Cleaner N is recommended to clean the stencil.
Additives
♦ SM-40 Defoamer: Add 0.5~1.0% to improve the defoaming and leveling.
Printing
♦ T-200~270 mesh is recommended.
♦ Coverage at 250 mesh is 35-40 m2/kg.
Drying/Curing
♦ Heated drying is required ; while tack-free time is 10 minutes at room temperature (25°C ).
♦ Initial drying time is approximately 3 minutes in a box dryer at 80°C, final drying time is 90 minutes in a box dryer at 90°C.
♦ Curing, drying, and forming suitability may be affected by size of printed area, mesh, ink layer thickness, printing environment (temperature & humidity), and dryer performance. Also over-curing the lower layer, in multi layer printings, may cause lack of opacity . Adjust the drying conditions after confirming the preliminary drying test results under actual conditions.
Standard Colors
| 000 Medium |
234 Light Yellow |
581 Magenta |
911 Black |
| 001 Victoria |
240 Light Yellow |
611 White |
971 Black |
| 166 Red |
277 Opaque Reddish Yellow |
671 White |
Pianoblack* |
| 168 Scarlet |
391 Blue |
791Green |
|
| 182 Brilliant Red |
519 Orange |
821 Violet |
|
*Black color overprinting on Piano Black is required. |
Caution
♦ In various forming processes such as vacuum forming, pneumatic forming and mold forming, or in the Film Insert Molding process (in which injected resin integrated with substrate), the finished product may be affected by any of the following: the type of substrate, the ink used in pattern printing, the printing conditions, the printing order, the drying method, the forming resin, the mold (type, position of the mold and shape, number of gates), the injection conditions, etc. Preliminary testing under actual conditions is strongly recommended before a commercial run.
Safety and Handling
♦ Use safety gloves and goggles. If ink comes in contact with skin, wash with soap and plenty of water. If ink comes in contact with eyes, wash with plenty of water and consult with a doctor.
♦ Containers should be closed tightly after use and stored in a cool, dark place.
♦ MSDS is available upon request. Read it carefully before handling products and use all ink products responsibly.
Resistance
1.Insert Molded Specimen
| Test Items |
Test Conditions: Insert Molded Specimen |
Results |
| Hot Water |
JIS K 5600-6-2: ISO 2812-2, Dipped 168 hrs in 40°C water, checked appearance and peeling off |
No defect |
| Heat |
ISO 3248: 80°C , 72 hrs, checked appearance and peeling off |
No defect |
| Moisture |
JIS K 5600-7-2 (continuous dew condensation method): 50°C , 98%RH, 168 hrs, checked appearance and peeling off |
No defect |
| <Test method> |
| : Test specimen is PC resin injected and Film Insert Molded. |
2.Printed Surface
| Test Items |
Test Conditions: Printed Surface |
Results |
| Adhesion |
JIS K 5600-5-6:ISO2409 ( Cross-cut ) 1mm interval 6x6 cuts, cellophane tape, checked appearance and peeling off |
No defect |
| Scratch |
JIS K 5600-5-4:ISO 15184 ( Pencil ) 750g weight hardness of a pencil, checked for scratching |
F |
| Heat |
ISO 3248: 80°C , 400hrs, checked the appearance and peeling off from the substrate |
No defect |
| Hot Water |
JIS K 5600-6-2: ISO 2812-2, Dipped 48 hours in 40°C water, checked appearance and peeling off |
No defect |
| Temperature Change |
JIS K 5600-7-4: 10 cycles, 50°C , 95%RH(13hrs)~-20 °C (3hrs)~23 °C (3hrs), checked appearance and peeling off |
No defect |
| Moisture |
JIS K 5600-7-2 (continuous dew condensation method): 50°C , 95%RH, 168 hrs, checked appearance and peeling off |
No defect |
| Water |
168 hrs in city water, checked appearance and peeling off |
No defect |
| Acid |
7 hrs in 5% H2 SO 4, checked appearance and peeling off |
No defect |
| Alkaline |
7 hrs in 5% NaOH, checked appearance and peeling off |
No defect |
| Alcohol |
Cotton soaked ethanol scrubbed with 200g weight 50 times by Gakushin tester, checked appearance and peeling off |
No defect |
| Oil |
Dipped 7 hrs in an engine oil, checked appearance and peeling off |
No defect |
| Detergent |
Dipped 7 hrs in a household non-ionic detergent, checked appearance and peeling off |
No defect |
| Scrub |
Cotton scrubbed with 500g weight 500 times by Gakushin scrub tester, checked for color fade |
No defect |
| Punch |
Cut with a punch, checked cut edges |
No defect |
| <Test Conditions> |
|
Substrate: 0.5mm PC Sheet, Ink: ISX 671 White, 971 Black Thinning: Z-705 Solvent 10% dilution,
Printing: T-250 mesh, Final Drying: 90°C , 90 min. (Box dryer) |
| <Test Method> : |
| Above mentioned tests are done after leaving the printed sample at room temperature for 24 hours. |
| <Attention> : |
|
Above mentioned results are for lab purposes only, can not be guaranteed. |
Made: July13 th , 2007SG , Translated: July13 th , 2007CE