Ulano Emulsion Blue
Ulano Emulsion Blue - 1 Unit (1 Gallon)
BLUE is a ready-to-use, extremely-fast-exposing SBQ-photopolymer direct emulsion formulated for imprinted sportswear printing. It resists plastisol inks—including newer, more aggressive, post-phthalate plastisols—and most washup solvents, making it exceptionally easy to reclaim in automatic equipment or by hand.
BLUE is especially efficient with fixed or scanning LED units, as well as with fluorescent tubes or other low-intensity light sources, or in shops that need high stencil making throughout.
BLUE has high viscosity (6,000 – 8,000 centipoise) that improves control when coating screens by hand. It affords exceptional EOM (emulsion over mesh thickness) build per coat, better mesh bridging--especially on coarse mesh--good edge definition, and fast drying. BLUE stencils are durable, will not become tacky under high humidity conditions, have excellent wet strength, and are easy to wash out.
Often Purchased With
- Ultra fast exposing
- Exposure-efficient with fixed or scanning LED units
- Fast stencil throughput for high volume shops
- Assures thorough exposure, even with weak light souces
- Dependable polymerization assures durability and ink resistance
- High (6,000 – 8,000 centipoise) viscosity
- Exceptional thickness build-up per coat
- Easier to control during coating, even on coarse mesh
- Excellent Solvent Resistance
- Resists plastisols (including aggressive post-phthalates) and most washup solvents
- Easy washout
- Shelf Life: unopened, 1 year at 70⁰ F. (21⁰ C.)
COLOR : Blue
VISCOSITY : 6,000-8,000 cps
SENSITIZER : SBQ
SOLVENT RESISTANCE : High
SHELF LIFE : 1 year at 70º F (21º C)
- Step 1: PREPARE THE FABRIC
Used or surface treated fabric need only be degreased using Magic Mesh Prep, Screen Degreaser Liquid No. 3, or dilute Screen Degreaser Concentrate No. 33. (Mechanical abrasion is an option for new fabric that is not surface treated. It increases the surface area of fabric for a better mechanical bond of the stencil, increasing printing run length. Use Microgrit No. 2 before degreasing. Abrading and degreasing can be combined in one step with Ulanogel 23.) A degreaser, Magic Mesh Prep also serves as a wetting agent and antistatic treatment. Screen fabric treated with Magic Mesh Prep can be coated with emulsion more evenly and will transfer ink more readily during printing.
- Step 2: SENSITIZING
BLUE is fully presensitized. No sensitizer need be added. BLUE should be handled only under yellow safe light conditions.
- Step 3: COAT THE SCREEN
Method 1: Apply one coat of emulsion on the printing side, then one coat on the squeegee side. Dry the screen thoroughly. Method 2: Apply two coats on the printing side, then two coats on the squeegee side, wet-on-wet. After each coating, rotate the screen 180°. Method 3: Follow Method 2 (above). Then, after drying the screen, apply two additional coats on the printing side, wet-on-wet.
- Step 4: DRY THE SCREEN
Dry multicoated screens (Methods 2 or 3) thoroughly in a horizontal position, printing side down, at room temperature in a dirt- and dust-free area. Use a fan to speed drying. If using a commercial dryer, dry the screen with warm, filtered air, up to 104° F. (40° C.).
- Step 5: CALCULATE THE APPROXIMATE EXPOSURE TIME
Refer to the Base Exposure Table (reverse side). Base Exposure Time X Exposure Variable Factors = Approximate Exposure Time.,
- Step 6: DETERMINE THE OPTIMAL EXPOSURE TIME
Make a Step Wedge Test (there is an instructional video covering this on the “Support” tab of our Web site: www.ulano.com) or use the Ulano ExpoCheck—carried through to actual printing—to determine your optimum exposure time. Optimum exposure is indicated: ■ At the exposure time when the emulsion first reaches its maximum color density and the edges of the positive do not “resolve.” ■ When there is no suggestion of softness or sliminess on the squeegee side of the stencil. ■ The print best duplicates the test positive at the level of resolution that the job requires.
- Step 7: WASHOUT THE STENCIL
After exposure, wet both sides of the screen with a gentle spray of cold water. Then spray forcefully from the printing side until the image areas clear. Rinse both sides of the screen with a gentle spray until no soft emulsion is left on the squeegee side, and no foam or bubbles remain. Blot excess water from the printing side with newsprint (unprinted newspaper stock).
- Step 8: BLOCKOUT AND TOUCHUP
Blockout Option 1: Before drying and exposing the coated screen, use excess emulsion from the coating step to cover the blockout area. Blockout Option 2: For non-water based-inks, after exposure and washout, dry the screen. Apply Screen Filler No. 60 or Extra Heavy Blockout No. 10. Touchup Option 1: Use excess emulsion and re-expose the screen. Touchup Option 2: For non-waterbased inks, use Screen Filler No. 60 or Extra Heavy Blockout No. 10 thinned with water.
- Step 9: STENCIL REMOVAL
Use All-Purpose Ink Wash, Eco-Wash 160 or the least powerful ink diluent necessary, to remove all ink remaining in the screen. Use Screen Degreaser Liquid No. 3 to help remove ink and solvent residues that might impair the action of the stencil remover. Brush Stencil Remover Liquid No. 4 or Stencil Remover Paste No. 5 on both sides of the screen. Do not let the stencil remover dry on the screen. Wash the screen with a forceful spray of water. Use Walk Away Haze Remover or Haze Remover Paste No. 78 to remove ink and haze residues.