Performance | Indicators: |
Character | No smell, no mildew, no visible foreign impurities |
Chrominance | Difference from the chrominance sample E≤3 |
pH | 5.0~10.0 |
Writing effect | Similar as the sample |
Intermittent writing effect | Writing effect same as the sample after 60℃ exposure intermittent 4hours |
Resistance to water | Clear writing ,good color(Non-fade design) |
Color fastness to light | ≥2 grade |
Resistance to cold | -20℃~room temperature,good reducibility, can be written normally |
Degree of diffusion | ≤1 |
Stability | 40±1℃ sealed 120h keep stability |
Heavy metal(mg/kg) | ≤0.5 |
Arsenic salt (mg/kg) | ≤0.3 |
Microbial limit | Bacterial(≤1000cfu/g) |
Mould and yeasts(≤100cfu) | |
Escherichia coli(None) | |
Salmonella(None) | |
Washing performance | Easily washing by water |
Packing specification | 2g/pcs*6 color |
Storage | Sealed, keep in the cool and dry conditions |