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Toynol® DS-191 Series Dispersants

Characteristics

n     High performance dispersing agents used in   water-based system;

n     Good wetting effect to pigment and fillings

n     Outstanding controlling flocculation effect

n     Provide powerful charge repulsion property;

n     Suitable for various powder;

n     Reduce viscosity of grinding system,   improve color development of 

        millbase;

n     Specially suitable for organic pigment   dispersion;

n     APEO free

Physical properties


Typical Properties

Item

DS-191L

DS-191H

Appearance

Yellow transparent liquid

Yellow transparent liquid

Content%

40%

40%

Solvent

water

water


Chemical Components

Mixture   of Amine alkyl hydroxy affixture of HMW styrene acrylic copolymers and   surfactant

Recommended   Applications

Phthalocyanine   organic pigment(blue/green)

Azo   organic pigment(red/yellow)

 

 

Grinding operation

Dispersing   sand millGlass   bead0.8-1.2mm;

Filling   rate 70%

3000rmp/min  60min

Performance   evaluation

¬  Centrifugal   stability: take 20ml millbase into centrifuge tube, centrifuge 10 min under   condition of 3000r/min, then take out to observe the layering of millbase.   Pour out liquid and calculate amount and percentage of precipitate.

¬    Viscosity evaluationUse Brookfield rotational viscometer

¬    Fineness measureScraper fineness meter;

¬    Viscosity stabilityStore millbase in 100ml wild-mouth   bottle at 40 for 24   hours, measure viscosity change,  ±50%   change is regarded qualified

ExampleⅠExcellentGood

Experimental   pigment: phthalocyanine blue 15:2 , powder content 30%

Pigment   content:                  30

Dispersant   dosage(as supplied):    30

Defoamer(Toynol®):               0.1-0.3

Wetting   agent(Toynol®):           0-0.3(as appropriate)

Water:                          add to 100%

Item

Toynol® DS-191L/H

Toynol® DS-193L/H

Comparison with imported dispersant

Dispersant dosageSOP

40%

40%

40%

Wetting of original powder

Quick

Quick

Quick

Original liquid stability (centrifugation)

Dilution stability(centrifugation)

Millbase viscosity

Dispersion finenessμm

≤2.5

≤2.5

≤2.5

Change of storage viscosity

Without thickening and thixotropy

Without thickening and thixotropy

Without thickening and thixotropy

ExampleExcellentGood

Experimental   pigment: permanent yellow P.Y.12, powder content 35%

Organic pigment   content:          35

Dispersant   dosage(as supplied):    26

Defoamer(Toynol®):               0.1-0.3

Wetting   agent(Toynol®):            0-0.3(as appropriate)

Water:                           add to 100%

Item

Toynol® DS-191L/H

Toynol® DS-193L/H

Comparison with imported dispersant

Dispersant dosageSOP

30%

30%

30%

Original powder wetting

Quick

Quick

Quick

Original liquid stability (centrifugation)

Dilution stability(centrifugation)

Millbase viscosity

Dispersion finenessμm

≤2.5

≤2.5

≤2.5

Change of storage viscosity

Without thickening and thixotropy

Without thickening and thixotropy

Without thickening and thixotropy

 

(When   actual operationFirst   add dispersant into water, then add powder, 4000rmp/min 10min. After powder   completely wetting, put into grinding glass beads to start timing grind.)

 

Recommended   Applications

ü     Water-based inks

ü   Architectural coating

ü   Wood and furniture coatings

ü   Automotive coatings

ü   Can coatings

ü     Anticorrosive paint

ü     Leather   coatings

Operation proposal

1.      Suggested dosage of organic pigmentBased on pigment, Toynol®   

dispersants calculate solid content SOP)10-50%

2.      Do not add wetting agents separately

3.      Toynol®   wetting agents can accelerate original powder wetting

4.      Adding   Toynol® defoamers can quickly eliminate grinding foam

5.      To obtain optimal performance, Toynol®   additives must be added in water 

before resin and pigment

6.      Advise gradient test

191 1.jpg

                                                           Picture1 Carrying capacity of   phthalocyanine pigment

191 2.jpg

                                                           Picture 2Carrying   capacity of permanent yellow pigment 

Packaging/storage

25L/plastic   drum220L/iron   drum

As liquid material,   this product should be sealed and placed in a dry, cool, well-ventilated   place at room temperature away from fire source. For any other information,   

please refer to MSDS.

All statements, technical information and   recommendations contained herein are based on tests and data which we believe   to be reliable, but the accuracy or completeness thereof is not guaranteed   and no warranty of any kind is made with respect thereto. This manual can not   serve as any legal material.

 

 


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