Water based flexographic inks, environment-friendly and safe for human health
2. Name : K - Aqua3. Features and Uses:- K - Imaz W is a type of water based ink for flexographic printing, is suitable for many papers such as Kraft paper, Carton board, Ford paper, etc.
- It is suitable for flexographic presses with a printing speed up to 120 m/min and high-line anilox roller (100-150 line/inch)
- Vivid color and high color density
- Good ink transfer and printability
- Good water resistance and abrasion resistance
- Easy to use and no gelling for using and storage
4. Applications:K - Imaz W is used for printing carton box, label, notebook, packing paper, frozen packaging,…
5. Main Compositions:- Resin : Acrylic resin
- Pigment : Organic/Inorganic pigment
- Additive : Synthetic wax
- Solvent : Water
6. Physical Properties:
|
Colour
|
Code
|
Net weight
(kg)
|
Viscosity
(sec)
|
Lightfastness
|
|
Full
|
Tint
|
|
White
|
W001
|
20
|
12÷ 25
|
AA
|
AA
|
|
Yellow
|
Y203
|
20
|
12÷ 25
|
B
|
C
|
|
Red
|
R106
|
20
|
12÷ 25
|
B
|
C
|
|
Red
|
R108
|
20
|
12÷ 25
|
B
|
C
|
|
Orange
|
OW50
|
20
|
12÷ 25
|
B
|
C
|
|
Green
|
Gr401
|
20
|
12÷ 25
|
AA
|
A
|
|
Blue
|
B301
|
20
|
12÷ 25
|
AA
|
A
|
|
Violet
|
V701
|
20
|
12÷ 25
|
A
|
B
|
|
Black
|
BL501
|
20
|
12÷ 25
|
AA
|
A
|
Remark:
- Fineness : < 10 microns
- pH value : 8.5 - 9
- Viscosity: measured by Zahn No.3 ASTM
- 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
7. Thinner:
Thinner is water adjusted pH value 8.5 – 9
The drying speed can adjust by adding about 10-20% quick drying agent (such as
Isopropanol) for higher printing speed.
8. 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.
- The ink attached to the printing plate and anilox roller can be easily washed away using water before cure. However, it is difficult to wash away the ink using water once cured. For cured ink, you can use cleaning agent or organic solvent (Butanone, IPA, Ethyl Acetate) for cleaning
- Air bubbles may occur sometimes during printing, especially in high printing speed.
Please add 0.1-0.5% de-foaming additive to avoid this phenomenon. However, do not use excessive de-foaming additive.
9. Safety and storage information:
- Storage and handling at 15 – 25oC.
- Avoid contact with skin and eyes.
- Shelf life: 6 months after date of manufacture (in condition 15 – 25oC).