Product overview

ERX inks are low-odor, environmentally friendly inks that do not contain environmentally hazardous substances such as benzene, toluene, xylene, and isophorone. One-pack screen printing ink with excellent re-solubility, suitable for fine printing of nameplates, etc., and excellent flexibility and heat resistance of the during post-processing.

  • Solvent type ink

Application

  • Nameplates for home appliance and automobile

  • Automobile, Motorcycle

  • Home Appliance (IoT)

  • Smartphone, Tablet, Smart watch

  • Sensor

  • Game

  • Others

Features, Function

  • Good adhesion to various substrate and low odor
  • Semi-gloss finish with excellent weather resistance and heat resistance
  • Multi color setting

Substrate

  • Easy-adhesion PET film, PC（Polycarbonate） film and sheet
  • *Annealing （preheating） may be required for some materials, please check before use.
  • PC
  • Easy adhesion treated PET

Dilution

  • F-001 SOLVENT（extra fast dry） F-002 SOLVENT（fast dry） F-003 SOLVENT（stamdard） Z-705 SOLVENT （slow dry）
  • DILUTION 10 to 15%

Catalyst, Promoter mixing

  • Not necessary

Promoter

  • SM-40 DEFOAMER 3% or less（for anti-foam and improve leveling）

Recommended cleaner

  • Screen Cleaner L2

Mesh

  • T200 to 300 mesh（Coverage is Black 35 to 40 m2/kg, White 30 to 35m2/kg at 250 mesh）.

Drying

  • 80℃ 30 min
  • Overprint
    Each layer 80℃ 10 min（tack-free）
    Final layer 80℃ 30 min
  • *Insufficient drying may cause blocking, please dry thoroughly.

Standard colors

  • 000 MEDIUM

  • 001 VICTORIA

  • 003 BRIGHT RED

  • 121 SCARLET

  • 161 SCARLET

  • 168 SCARLET

  • 177 OPAQUE RED

  • 182 RED

  • 221 YELLOW

  • 246 LIGHT YELLOW

  • 263 REDDISH YELLOW

  • 271 OPAQUE LIGHT YELLOW

  • 277 OPAQUE REDDISH YELLOW

  • 391 BLUE

  • 525 ORANGE

  • 577 OPAQUE ORANGE

  • 581 MAGENTA

  • 611 WHITE

  • 621 WHITE

  • 675 OPAQUE WHITE

  • 797 GREEN

  • 821 VIOLET

  • 911 BLACK

  • 971 BLACK

Introduction of
Color Guide

Caution

  • Checking before commercialization: Adhesion and resistance properties may change due to differences in substrates, processes, printing and drying conditions. Be sure to check the adhesiveness and resistance properties before mass production printing.
  • Ink shelf life: 24 months from production date, unopened.

Safety

  • UN No.: Not classified in the definition
  • UN Classification: Not classified in the definition

Handling

  • Use safety gloves and eyeglasses to protect skin and eyes. If the ink comes in contact with skin, wash with soap and plenty of water （or lukewarm water）and consult with a doctor.
  • Containers should be closed tightly after use and stored in a cool and dark place.
  • SDS is available upon request. Please request a copy and read it carefully before handling the products.

Resistance

Adhesion Test conditions Test results
Adhesion JIS K 5600-5-6:ISO2409（Cross-cut）, 1mm interval 6x6 cuts, Cellophane tape and peel 0（No peel off）
Scratch hardness JIS K 5600-5-4:ISO 15184（Pencil method）, 750g weight, hardness of the pencil which does not make scar H
Heat 110℃、48 hrs.、check appearance and peeling off from the substrate No defect
Water 168 hrs. in city water No defect
Hot Water Soak 48 hrs. in 40℃ warm water, check appearance of ink layer and peel off No defect
Acid 24hrs. in 5% HCI, check appearance of ink layer and peeling off from the substrate No defect
Alkaline 24 hrs. in 5％ NaOH, check appearance and peeling off from the substrate No defect
Alcohol Gakushin scrub tester, cotton soaked ethanol, 500g weight, 50 back and forth. Check peeling off No defect
Scrub Gakushin scrub tester, with cotton, 500g weight, 500 back and forth, check color fade No defect
Falling-weight test JIS K 5600-5-3 DuPont Impulse tester, drop 500g from 50cm height No defect
Bending 180° Bending tester No defect
Punching Punching by press machine No defect
Accelerated weathering JIS K-5600-7-7: ISO 11341 Weather meter (Xenon lamp), BP temp. 63+/-3℃：Rain rate 18 min/120 min, check color fade and peeling off No defect

Test Condition

  • Test conditions 【ERX-971 BLACK】　【F-003 Solvent 15%】　【80℃ 30min】 【T 250】　【Substrate：0.5mm Polycarbonate (Sumitomo Bakelite EC100】
  • Above resistance test results are measured results in our laboratory and they are not guaranteed values.
  • Information contained in this catalog may change without prior notice.

FAQ

What are the meanings of X and Q used in the ink names such as IPX, INQ, FMX, etc.?

X and Q are used to designate isophorone-free inks.

What is screen printing?

Screen printing is a type of stencil printing which uses a technique of duplicating the image from a design made on mesh stencils.

When printing ink goes through the mesh, it transfers the image onto the substrate material. Other than air and water, any substrate materials are printable. Not only flat surfaces, but also curved, specially shaped, and molded products are suitable for screen printing.

When over-printed with a black ink, we often have pinholes. How can we eliminate the pinholes?

See the list below for causes of pinholes:

1. The first layer is too thin (less than 5 µ)
2. Too much dilution of the ink (more than 20%)
3. Too much squeegee pressure
4. Under layer is pale colored, such as a medium based color
5. Any combination of these causes

What are the standard drying conditions?

In multi-color printing, primary drying would be done after each color is printed. After the final color is printed, the final drying should be done according to the conditions listed in the catalog. If the color printed ink is a “two-pot” ink the final drying should be done after the printing of the Binder.

Why there is “Primary” drying and “Final” drying?

Residual solvent at the time of injection may cause ink flow and insufficient adhesion. To prevent these malfunctions, residual solvent must be evaporated through a “Final” drying process.

When we extended the primary drying time, pinholes and cracks resulted. How can we eliminate them?

With one-pot inks, if the primary drying time is too long, the solvent of second ink penetrates the first color layer and makes pinholes.

With two-pot inks, if the primary drying time is too long, a curing process occurs. Thus when the second color is printed, the first color ink layer wrinkles and looks like cracks. The countermeasure in either case would be to shorten the primary drying time.

FAQ