BUSINESS AREA
ZHAOBO
Wood
Application of Direct Dyes
1．Exhaust dyeing
1.1Recipe of dyeing bath
| Dyeing method | Weak Alkli | Neutral |
| Dyestuff，% (owf) | x | y |
| Na2so4,g/L | 1-2 | - |
| Na2so4,g/L | 0-30 | 0-30 |
1.2Dyeing procedure
1.2.1Common dyeing
1.2.2Dyeing bath with disperse dyes
2.Padding
2.1Recipe of padding liquor
| Dyestuff | x g/L |
| Levelling Agent | 20 g/L |
| Na3po4 | 200 g/L |
| Other Additives | 20 g/L |
2.2Procedure
Padding (Liquor pick-up 80%，Temp，60℃)→Steaming (Temp.100~10360℃Time:1~4min)→Rinsing→Fixing→Drying.
Application of Acid Dyes
1．Dyeing Method
Recipe:
A.Dyes ×%(o.w .f)
B.Sodium sulfate (anhydrous) 5~10%(o.w.f)
C.Sulfuric acid (66° Be’) 2~4%( o.w.f)
pH<3.5 Adjust pH <3.5
Liquor ratio 1: 10~30
Dyeing Procedure
2．Dyeing Method
Recipe:
A. Dyes × %(o.w.f)
B.Sodium sulfate (anhydrous) 5~10%(o.w.f)
C.Glacial acetic acid 1~2%( o.w .f)
D.Sulfuric acid (66° Be’) 1~2%( o.w.f)
pH<3.5 Adjust pH <3.5
Liquor ratio 1: 10~30
Dyeing Procedure
Application of Basic Dyes
1．Dyeing Method
Recipe:
A.Dyes x %(o.w .f)
B.Aceticacid 5~10%(o.w.f)
pH<4 Adjust pH <4
Liquor ratio 1: 10~30
Dyeing Procedure
Note: In the case that the dye is not completely absorbed, sulfuric acid (66°Be ') can be added, and then boiling dyeing for 20~30 minutes.
Zhaobo Chemical - Tianjin Head Office
Address: XEDA Sci-Tech Park,Xiqing Economic-Technological Development Area,Tianjin,China.
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