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Screen printing

Metallic pigments for screen printing

Screen printing gives the advantage to print on a very wide range of surfaces such as paper, cardboard, plastic,
leather, textile, metal. Very performing metallic pigments provide an improvement in gloss and metallic effect
which are further enhanced when using coarse metallic pigments with a D50 up to 40-50µm. In order to avoid
the clogging of the screen mesh at any time, it is recommended to use grades with a D90 value which is 3 times
smaller than the mesh size

User recommendations for screen printing

 

Indicative Formulation

How to Formulate

* Gold bronze/Copper/Aluminium pigments: 6 - 10%
* Binder: 90 - 94%
* Suggested water based binder: metallic clear LFW
  (sun chemicals)

* Add maximum 10% of water to lower viscosity.

* The addition of a crosslinker may be required Mix the pigment gradually to binder using a slow rotation mixer (50 rpm).

* After printing, dry and cure for 3 minutes at 160° Celsius.

Note on the formulation

Particle Size of Metallic Pigments

* Use a binder with a neutral PH or low acidity degree
for optimal stability results.
* Ammonia and derivates will attack the pigment
and lower the metallic effect.
* A coarse screen should be used to avoid clogging.
* The metallic printing paste should be applied last
of all colours.

The D90-particle size of metallic pigments needs to
be at least three times smaller than the size of each
square of the screen mesh.

Note on the process

 

Gold bronze/Copper/ Aluminium pigments for screen
printing on textile are usually applied last after all the
other colours; this is done:

* To prevent the metallic pigment from being taken away with the next screen while the coating is not fully dry yet.

* To retain an optimal metallic effect, which will not
be the case if the coating with gold bronze/copper/
aluminium pigments is printed over with other
colours.

 

Metallic effect:


To facilitate your selection , the AVL grades are for decorative applications divided in 3 distinct categories of metallic effects :


Star: The brightest metallic effect with sparkle.

Shine: Midrange between sparkle and smooth/homogeneous metallic effect.
 

Splendor : Homogeneous metallic effect with the highest opacity , still with good luster.
 

Grade Average particle size (D50 µm) Optical Characteristics (Brilliance) Optical Characteristics (Coverage) Carrier Solids (%) TDS SDS
024 9,5
024/DI/80-20 9,5 hexylene glycol 80
030 8
030/DI/80-20 8 hexylene glycol 80
032 7
032/DI/80-20 7 hexylene glycol 80
032/UV4/66-34 7 tridecanol 66
06/DI/80-20 58 hexylene glycol 80
08 45
08/DI/80-20 45 hexylene glycol 80
13000 Available in Rich Gold; Rich Pale Gold; Pale Gold and Copper Gold 7 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
13000/DI/85-15 Available in Rich Gold; Rich Pale Gold; Pale Gold and Copper Gold 7 hexylene glycol 85 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
2500 Available in Rich Gold; Rich Pale Gold; Pale Gold and Copper Gold 42 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
2500/DI/85-15 Available in Rich Gold; Rich Pale Gold; Pale Gold and Copper Gold 42 hexylene glycol 85 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
3000 Available in Pale Gold 42 Colours except Copper Gold Colours except Copper Gold
3000/DI/85-15 Available in Pale Gold 42 hexylene glycol 85 Colours except Copper Gold Colours except Copper Gold
36 Available in Rich Gold; Rich Pale Gold; Pale Gold; Deep Gold and Copper Gold 28 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
36/DI/85-15 Available in Rich Gold; Rich Pale Gold; Pale Gold; Deep Gold and Copper Gold 28 hexylene glycol 85 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
3900 Available in Rich Pale Gold 28 Colours except Copper Gold Colours except Copper Gold
3900/DI/85-15 Available in Rich Pale Gold 28 hexylene glycol 85 Colours except Copper Gold Colours except Copper Gold
4000 Available in Rich Gold; Rich Pale Gold; Pale Gold; Deep Gold and Copper Gold 19 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
4000/DI/85-15 Available in Rich Gold; Rich Pale Gold; Pale Gold; Deep Gold and Copper Gold 19 hexylene glycol 85 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
5000 Available in Rich Gold; Rich Pale Gold; Pale Gold and Copper Gold 15 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
5000/DI/85-15 Available in Rich Gold; Rich Pale Gold; Pale Gold and Copper Gold 15 hexylene glycol 85 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold
6000 Available in Rich Gold; Rich Pale Gold; Pale Gold and Copper Gold 12 Colours except Copper GoldCopper Gold Colours except Copper GoldCopper Gold

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