Solvent based gravure inks for surface printing, non laminating
2. Name              : Q-Surf Paper
3. Features and Uses:
-	MulT Surf N  is front surface printing ink for many paper (Ford, Couche’, Ivory …), used for fast food, milk packages, etc
-     Good slipping resistance
-     Excellent adhesion on surface of paper
-     Leave less residual solvent
-     Good ink transfer and printability
-     Good static resistance
-	Heavy  metal  contents  in  the  ink  meet ASTM F963-96a 4.3.5 & 8.3 and EN 71-3:1994 testing standards
4. Main Compositions:-     Resin       : Nitro Cellulose (NC)
-     Pigment   : Organic/ Inorganic pigment
-     Additive   : Synthetic wax
-     Solvent    : Toluene / MEK / EA
5. Physical Properties:
 
  |     Colour |     Code | Net weight (kg) |   Viscosity (sec) | Light fastness |   Water Resistance | Acid& Alkali
  Resistance | 
 
  | Full | Tint | 
 
  | White | W001 | 20 | 25÷ 45 | AA | AA | A | A | 
 
  | Yellow | Y203 | 16 | 25÷ 45 | B | C | A | A | 
 
  | Red | R106 | 17 | 25÷ 45 | B | C | A | A | 
 
  | Orange | O307B | 17 | 25÷ 45 | B | C | A | A | 
 
  | Green | Gr401 | 17 | 25÷ 45 | AA | A | A | A | 
 
  | Blue | B301 | 17 | 25÷ 45 | A | B | A | A | 
 
  | Violet | V703 | 17 | 25÷ 45 | A | B | A | A | 
 
  | Black | BL501 | 17 | 25÷ 45 | AA | AA | A | A | 
 
  | Medium | Me | 17 | 20÷ 40 |   |   |   |   | 
 
  | Overprint Varnish |   OPV |   17 |   20÷ 40 |   |   |   |   | 
 
Remark:
- Fineness: < 10 microns
- Viscosity: measured by Zahn No.3 Jis
- Acid resistance:
Dipping into solutions of 3% hydrochloric acid and 7% acetic acid; slightly colouring of solution, but no change in shade of ink film after 30 mins.
- Alkali resistance:
Same result as acid test after 30 mins. Dipping into solution of 2% NaOH at room temperature.
- Water resistance:
Same result as acid test after 30 mins. Dipping into water at room temperature.
A          : No change
B          : Slightly colouring of solution but no change of shade of ink film
C          : Slightly fading of shade of ink film and a little colouring of the solution
D          : Fading pretty much
- Light fastness:
Tester: Sun Tester 575
Distance from light source to substance: 300 mm
     Full: high concentration (colour ink : white ink = 1: 0)
     Tint: low concentration (colour ink : white ink = 1:10)
The degree of resistance:
AA        : No fading after 60 hours
A          : Fading after 35 - 60 hours
B          : Fading after 15 - 35 hours
C          : Slightly fading after 15 hours
D          : Fading much within 15 hours
6. Thinner:
Toluene / EA / MEK / IPA = 4 / 4 / 3 / 1
Note: EA : Ethyl Acetate, MEK : Methyl Ethyl Ketone, IPA: Isopropanol
7. Attention for Users:
-     Stir well before using.
-	The fineness of previously used inks should be tested before using because a long-term storage can cause an ink agglomerate. Only mix 10 – 30 % previously used inks into fresh inks and sieve carefully by filter screen 100 µm or metal screen 120 mesh.
-	Using  the ink supply system  together filter screen equipment and circulating  pump to prevent inks from skinning, foreign matters as well as to stabilize colour strength.
-	For the printing with less ink consumption and small printing plate, moisture can be easily introduced due to long contact with air, leading to thickening and filling-in. To prevent these phenomena, slow drying solvent should be used in so far as possible, and humidity of working areas should be controlled at 55 – 65%.
-    Ensuring a good blocking resistance, it’s necessary to control adequate drying rate.
Medium usage:
For printing, medium is added into inks to decrease colour strength, depends on the cell- deepness of cylinders. Generally, 10 – 15% medium should be mixed into fresh inks. In special cases, the medium content used is a higher ratio. We recommend the medium ratio as follows:
    Medium rate ≤ 10 – 15% : using non-additives medium.
    Medium rate > 15%         : using medium with additives.
8. Safety and storage information:
-		The  products  contain  flammable  liquids.  Thus,  it’s  necessary  to  keep  a  working  area ventilating or install a exhaust system of ventilation. Keep away from heat, spark/flame, and static electricity.
-     Storage and handling at 15 – 25oC.
-     Avoid contact with skin and eyes.
-     Shelf life: 6 months after date of manufacture (in condition 15 – 25oC).