K-Imaz S

TECHNICAL DATA SHEET


1. Classification : 

Solvent based flexographic surface printing ink


2. Name : K - Imaz S


3. Features and Uses:

- K - Imaz S is suitable for flexographic printing on PE, PP film, woven PP bag
- Vivid color and high color density
- Good adhesion on printing materials
- Good scratch resistance, high gloss
- Good ink transfer and printability
- Easy to use and no gelling for using and storage


4. Applications:

- Printing speed : 25 - 100 m/min
- Printing materials : PE, PP film, woven PP bag
- Printing plate type : Rubber plate, Photo sensitive polymer plate.


5. Main Compositions:

- Resin : Polyamide resin
- Pigment : Organic/Inorganic pigment
- Additive : Synthetic wax
- Solvent : Toluene / Isopropanol / n-Butanol


6. Physical Properties:

 
 
Colour
 
 
Code
 
Net weight (kg)
 
Viscosity
(sec)
Light fastness
 
Water
Resistance
 
Acid& Alkali Resistance
Full
Tint
White
W001
20
16± 5
AA
AA
A
A
Yellow
Y203
17
16± 5
B
C
A
A
Red
R106
17
16± 5
B
C
A
A
Red
R108
17
16± 5
B
C
A
A
Red
R102
17
16± 5
B
C
A
A
Green
Gr401
17
16± 5
AA
A
A
A
Blue
B301
17
16± 5
AA
A
A
A
Violet
V703
17
16± 5
A
B
A
A
Black
BL501
17
16± 5
AA
A
A
A
Medium
Me
17
13± 3
 
 
 
 

Remark:

- Fineness : < 10 microns
- Viscosity: measured by Zahn No.3 ASTM
- 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


7. Thinner:

Isopropanol (IPA) / n-Butanol / Toluene = 60 / 25 / 15
- Adding too much amount Toluene will tend to burn the plate, especially in photo sensitive polymer plate. Thus, need to testing level of burning the plate before using thinner formulation
- For higher printing speed, the drying speed can adjust by adding about 10 % Ethyl Acetate


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.
- Solvent is easy to absorb moisture in volatilizing process, moisture can be easily introduced due to long contact with air, leading to thickening, stratification and filling-in. To prevent these phenomena, the ink added should subject to little quantities and many times, slow drying solvent should be used in so far as possible, and humidity of working areas should be controlled at 55 - 65%. If the humidity is higher, please use our dehumidifying additive with content of 2-5% of the fresh ink.
- 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.


9. 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).

Tin khác