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HP YELLOW 1335 / PIGMENT YELLOW 81

Pigment Yellow 81

This pigment affords a very greenish yellow. Its hue is similar to that of the monoazo yellow pigment P.Y.3, but white reductions are much stronger exhibiting considerably improved solvent and migration resistance. Although P.Y.81 shows satisfactory lightfastness, it is not quite as lightfast as P.Y.3. P.Y.81 is recognized throughout the paint industry for its fastness to overcoating

and very good solvent fastness in industrial application. Most types exhibit good hiding power.

In plastics application, P.Y.81 is very resistant to bleeding, provided the appropriate concentration limits are observed. Its heat resistance makes it a useful colorant for polyolefins. P.Y.81 was said to be heat stable up to 260°C for 5 minutes, depending on the depth of shade. The pigment was thus much more heat resistant than other diarylide yellow pigments

Quantity:


HP   YELLOW 1335

C.I.PY81
Chemical   Composition:                    
Color   Index: Pigment   Yellow 81
C.I.NO.: 21127
Chemical Formula:          C36H32ClN6O4
CAS NO.:                   22094-93-5
EU NO.:                    224-776-0
Physical   Properties:                       
Physical   Form :             Yellow   Powder                 
Heat Resistance(º C):           260
Density (g/cm3):       1.41
Specific Surface(m2/g): 26
PH Value:                  6.0-70
Oil Absorption(ml/100g):      40
Fastness   Properties:                       Full Color Tint Color
Dispersibility:              Excellent                     Excellent                    
Light Fastness:             7 6
Migration Resistance PVC 4


Recommended Application

plastics: PVC, rubber, PS, PP, PE, PU, 

Printing inks: offset inks, water-based inks, solvent inks, UV inks, printing pastes

pigments


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