PIGMENT YELLOW 81-Introduction and Application
C.I. PIGMENT YELLOW 81
Structure No. 21127.
Molecular formula: C36H32CL4N6O6.
CAS number: [22094-93-5]
Structure formula
Color characterization
Pigment Yellow 81 has a strong greenish shade,and the shade is more greenish after adding titanium dioxide.The tinting strength of pigment yellow 81 is low,the required concentration of pigment is 1.15% when blending with 5% of titanium dioxide to achieve 1/3 SD in flexible PVC,while the required concentration of pigment is only 0.27% when blending with 1% of titanium dioxide to achieve 1/3 SD in HDPE.
Main properties Shown in Table 4. 99 ~ Table 4.101
Table 4. 99 Application properties of Pigment Yellow 81 in PVC
| Project | Pigment | Titanium dioxide | Light fastness degree | |
| PVC | Full Shade | 0.1% | - | 7 |
| Reduction | 0.1% | 0.5% | 7 | |
Table 4.100 Application properties of Pigment Yellow 81 in HDPE
| Project | Pigment | Titanium dioxide | Light fastness degree | |
| PE | Full Shade | 0.27% | - | 7 |
| 1/3 SD | 0.27% | 1.0% | 7 | |
Table 4.101 Application range of Pigment Yellow 81
| General Plastics | Engineering plastics | Fiber and Textile | |||
| LL/LDPE | ● | PS/SAN | X | PP | X |
| HDPE | ○ | ABS | X | PET | X |
| PP | ○ | PC | X | PA6 | X |
| PVC(soft) | ● | PBT | X | PAN | ○ |
| PVC(rigid) | ● | PA | X | ||
| Rubber | ● | POM | X | ||
●-Recommended to use, ○-Conditional use, X-No recommended to use.
Varieties characteristics
Pigment Yellow 81 is inexpensive and limited to safety,use with caution!The blooming may be occur in the coloring of flexible PVC according to the formulation and processing conditions if the concentration of pigment is too low.In addition,there is no effect on the warpage of HDPE.
Countertype
PVYELLOWH108
Lithol Fast Yellow 0991K
Benzidine Yellow 10G
Plasco yellow 81
Einecs 244-776-0
C.I. Pigment yellow 81
Permanent Yellow H10G
Links to Pigment Yellow 81 Specification: Plastics application.
Post time: Oct-09-2021