Publish Time: 2026-06-03 Origin: Site
Process Curve:
35℃ (10') → A (Add 1/10B) → 5' → (Add 1/4B) → 10' → (Add 3/4B) → Heat to 60℃ (15min) → C (Hold for 50min) [Heating Rate: 1℃/min]
Process Curve:
35℃ (10') → A (Add 1/4B) → 5' → (Add 3/4B) → 20' → (Add 1/10C) → 10' → 60/80℃ (30-60min) [Heating Rate: 1℃/min]
Process Curve:
35℃ (15') → A (Add 1/10B) → 5' → (Add 3/4B) → 20' → (Add 1/5C) → 15' → 60-80℃ (60-75min) [Heating Rate: 1℃/min]
Process Curve:
35℃ (30') → A (1/10B) → 10' → (3/10B) → 15' → (1/20C) → 10' → (3/10C) → 5' → (6/10C) → 60-80℃ (60-80min)
Basic Exhaust Dyeing Formula:
· Liquor Ratio: 1:5 ~ 1:20
· A: Reactive Dyes - X% (o.w.f)
· B: Glauber's Salt - X g/L
· C: Soda Ash / Sodium Bicarbonate - X g/L
Salt and Alkali Dosage Control Table:
Dyeing Concentration (%) | Glauber's Salt (g/L) | Soda Ash (g/L) | Sodium Bicarbonate (g/L) | Caustic Soda 38°Be (ml/L) |
< 0.5% | 5 - 20 | 5 - 10 | 3 - 10 | 3 - 5 |
0.5% - 1.0% | 20 - 40 | 10 - 15 | 10 - 20 | 5 - 10 |
1.0% - 3.0% | 40 - 50 | 15 - 20 | 20 - 40 | 10 - 15 |
> 3.0% | 50 - 60 | 20 | 40 - 50 | 15 - 20 |
Turquoise Blue | 60 - 80 | 20 | 40 - 50 | 20 |
Typical Flow: Pad → Dry → Pad (Fixing) → Steaming → Washing → Drying
Process Parameters:
Item | Parameters / Composition |
Dye Liquor Composition | Dye X g/L, Anti-migrant 5-10 g/L, Penetrant 1 g/L |
Pad Dyeing Temp. | 20 - 30℃ |
Drying Temp. | 100 - 120℃ |
Steaming Condition | 102 - 105℃ (Saturated Steam) |
Pad (20-30℃, Pick-up 60-80%) → Batching (8-24h) → Washing → Drying
Dye Concentration (g/L) | Soda Ash (g/L) | Caustic Soda 38°Be (ml/L) | Sodium Silicate (ml/L) |
< 20 | 20 | 10 | 30 |
20 - 40 | 20 | 15 | 30 |
40 - 60 | 20 | 20 | 30 |
> 60 | 20 | 25 | 30 |
2.1 White Discharge Paste | 2.2 Color Discharge Paste |
Rongalite: 150g | Vat Dyes: 150g |
1. Dye Dissolution: Must be dissolved in 60-80℃ hot water with constant stirring.
2. Liquor Ratio Control: Fluctuations in liquor ratio during exhaust dyeing will directly affect color depth; strict control is required.
3. Alkali Addition: Start timing the fixation process immediately after adding alkali to avoid dye hydrolysis.
* This document is organized based on process diagram recognition and is for production reference only.