Product overview

UV SPA-369 Thick Layer Clear is a UV curable screen printing clear. The fluidity of the clear is suitable for thicker applications and for high-speed cylinder printing glossy applications.
Good transparency and excellent blocking resistance.

  • UV Clear Ink

Application

  • Glossing various materials such as posters, calendars, catalogues, advertising printed matters, packaging, etc.
  • Thick layer and high gloss finish

Features, Function

  • Suitable for both thick layer and glossy application
  • Excellent blocking property, curing property, stencil stability, low and high speed printability
  • Excellent resistance to fingerprint, finger marks and hand mark adhesion.
  • Clear ink itself, as well as printed cure layer, has low odor, strong and broad adhesion.
  • Super gloss and excellent leveling property.

Substrate

  • Oxidation polymerization type/UV Offset printing area
  • Soft & rigid PVC, PVC stickers, PC, papers, treated PET
  • Matte PP laminated
  • Screen Ink (UV FIL, Solvent type ink)
  • PC
  • Easy adhesion treated PET
  • PP
  • PVC
  • Paper

Dilution

  • Not required
  • *For high-speed cylinder printing above 3000 shots/hr., thin with 5 to 10% of RE-829 REDUCER.

Promoter

  • SM-269 DEFOAMER Less than 1%（If bubbling or cissing occurs）
  • SM-301 FLOW AGENT Less than 1%（to improve leveling）

Recommended cleaner

  • Screen Cleaner L2

Mesh

  • T 80 to 150 mesh （for thick layer）（Coverage is about 25 m2/kg at 100 mesh）
  • T 270 to 300 mesh（for gloss）（Coverage is about 70m2/kg at 350 mesh）

Drying, Curing

  • Thick layer printing Accumulated light energy: 200 to 240 mJ/cm2, Peak power: 350 to 400 mW/cm2 （Eye Graphics UV integral light counter) Two 80W/cm metal halide lamps, height 15cm, belt speed 10 to 15m/min
  • Gloss printing Accumulated light energy: 100 to 200 mJ/cm2、Peak power: 350 to 400mW/cm2 （Eye Graphics UV integral light counter） Two 80W/cm metal halide lamps, height 15cm, belt speed 15 to 25m/min

Caution

  • Checking adhesion before production: Adhesion may change depending on the substrates, processes, and printing. Be sure to check the adhesiveness before mass production printing.
  • Ink shelf life: 12 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

Test item Test Conditions Test results
Adhesion Adhesion of Clear to various Oxidation polymerization, UV Offset Ink, Matt PP Laminates No defect
Heat After 72 hrs. at 80℃, leave for 1 hr., check appearance, adhesion and size No defect
Humidity After 240 hrs. at 60℃, 90％RH, leave for 1 hr. check appearance and adhesion No defect
Cool-heat cycling test 80℃4hr～25℃1hr～-20℃4hr～25℃1hr、10 cycles, check appearance No defect
Pencil Hardness JIS K-5400 2H
Punching Cut with a punch, check cut edges. No defect
Alcohol Gakushin scrub tester, cotton soaked ethyl alcohol, weight 500g, 100 back and forth. No defect
Solvent Gakushin scrub tester, cotton soaked ethyl acetate, weight 500g, 10 back and forth, check ink layer No defect
Bending Bend tester, 1.5mm diameter, 180 degree folding, check appearance No defect
Scrub Gakushin scrub tester, cotton, weight 500g, 1000 back and forth, check appearance No defect
Blocking 60℃ 90％ RH, weight 200g/cm2 ,Check adhesion No defect
Odor Stack 10 sheets on the UV curing line, leave 5 min., sealed in a PP bag. Open after 72 hrs. No smell
Weathering Weather meter, 600 hrs., check appearance No defect clear

Test Condition

  • Test Conditions 【Substrate：Offset printed material on art paper 135kg】 　【T 100 mesh(clear thickness 50μm)】 【80W/cm Two metal halide lamps, 15cm height, belt speed 15m/min】
  • 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 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.

FAQ