DS-195H grinding additive for inorganic pigment

Toynol^® DS-195H dispersing aid for titanium dioxide in water based coatings 



Characteristics Chemical Components

Solution of high molecular polymers with pigment anchoring group

Highly Recommended Applications

Iron oxide, Transparent iron oxide
Titanium Dioxide
Carbon black
Organic pigments

Physical properties

Grinding operation

Dispersing sand mill, Glass bead(0.8-1.2mm), 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 evaluation:Use Brookfield rotational viscometer.
• Fineness measure:Scraper fineness meter
• iscosity stability:Store millbase in 100ml wild-mouth bottle at 40ºC for 24 hours, measure viscosity change,  ±50% change is regarded qualified.

Example1(★:Excellent  ☆:Good )

Experimental pigment: transparent red iron oxide TR-718, powder content 40%
Inorganic pigment content:         40
Dispersant dosage(as supplied):    40
Sodium hydroxide:                Appropriate amount(PH mixed to 8-9)
Defoamer(Toynol^®):               0.1-0.3
Wetting agent(Toynol^®):            0-0.3(as appropriate)
Water:                           add to 100
Example2(★:Excellent  ☆:Good )

Experimental pigment: Titanium dioxide R-996 , powder content  35%
Organic pigment content:          70
Dispersant dosage(as supplied):    10.5
Defoamer(Toynol^®):               0.1-0.3
Wetting agent(Toynol^®):            0-0.3(as appropriate)
Water:                           add to 100%
(When actual operation:First 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

• Water-based inks
• Architectural coating
• Wood and furniture coatings
• Automotive coatings
• Can coatings
• Anticorrosive paint
• Leather coatings

Operation proposals       

1. Suggested dosage of organic pigment(Based on pigment, Toynol^® dispersants calculate solid content SOP):10-50%;
2. Suggested dosage of inorganic pigment(titanium dioxide)(Based on pigment, Toynol^® dispersants calculate solid content SOP):3-7%;
3. Do not add wetting agents separately;
4. Toynol^® wetting agents can accelerate original powder wetting;
5. Adding Toynol^® defoamers can quickly eliminate grinding foam;
6. To obtain optimal performance, Toynol^® additives must be added in water before resin and pigment;
7. Advise gradient test to get optimal dosage;

Packaging/storage
25L/plastic drum;220L/iron drum
As liquid material, this product should be sealed and placed in a dry, cool, well-ventilated place at room temperature

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Stainless Steel Plain Dutch Weave Mesh, also known as wire mesh, it is made of high quality stainless steel wire. Similar to plain weave, it is weaved line by line. But for this kind of Stainless Steel Wire Cloth, the difference is the diameter of the weft is more thicker than the diameter of the warp. The weft wire is close together and then form a conical or wedge shaped hole. There is a big contrast between warp and weft wire diameter and density, so the net thickness and filtration precision and service life is significantly improved than common steel mesh. the filtering precision is running cannot be achieved for plain weave and Twill Weave Mesh screen.

Weaving:  There are two kinds of weaving technology of Dutch woven Stainless Steel Mesh . One is plain Dutch knitting and the other is twill Dutch knitting. The weaving technology of Dutch woven stainless steel mesh combines Dutch knitting and twill weaving techniques. The coarser thread interleaved the finer threads, weaving each thread through the weft. The weft wire is closely aligned to form a cone or wedge open hole.

Features: Dutch woven stainless steel mesh features 4 points:

              1."Zero" mesh, the warp wire diameter than the weft to the larger diameter.

              2. Each weft is very tight

              3. High precision, high liquidity

              4. Filter more solid particles than square or rectangular mesh holes

Material: 201,302,304 (L), 310,316 (L), etc

Application: The Dutch weave Stainless Steel Wire Mesh is one of the best filter medium in hydraulic system, especially the spatial filtering critical applications, as well as the fuel and combustion chamber filter, sediment filter, vacuum filter, etc.

                 

       The warp wire (D1) : all longitudinal braided lines.

        The weft wire (D2) : all horizontal weaving lines.

        Aperture : the distance between two meridians or two weft.

        Mesh number:number of mesh holes per inch.

        Thickness (T) : thickness of wire mesh.

Specifiaction list:

      

Plain Dutch Woven Stainless Steel Mesh
SPEC	NUMBER OF HOLES PER INCH	WIRE DIAMETER	APERTURE(micron)
40	10mesh x 64mesh	0.55x0.42	260
50	12mesh x 75mesh	0.45x0.35	220
80	24mesh x 110mesh	0.35x0.25	160
100	25mesh x 140mesh	0.28x0.20	100
120	30mesh x 150mesh	0.25x0.18	80
140	35mesh x 180mesh	0.20x0.16	70
160	40mesh x 200mesh	0.18x0.13	60
180	45mesh x 220mesh	0.16x0.12	56
200	50mesh x 250mesh	0.15x0.11	50
240	60mesh x 300mesh	0.14x0.09	45
260	65mesh x 320mesh	0.13x0.08	36
280	70mesh x 400mesh	0.125x0.07	34
300	80mesh x 700mesh	0.11x0.039	32

Stainless Steel Plain Dutch Weave Mesh

Stainless Steel Plain Dutch Weave Mesh,Plain Dutch Weave Mesh,Fine Metal Mesh,Stainless Steel Woven Wire Mesh

Anping Xinzheng Metal Wire Mesh Co., Ltd , http://www.sievingmesh.com