Printing and Dyeing Process Manual

I.Washer Extractor Exhaust Dyeing Process (Dip Dyeing)

1. High Concentration & Vivid Color Series

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]

2. Bright Blue & Medium-Dark Shade Series

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]

3. Extremely Dark & Special Series

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]

4. Turquoise Blue & Blue Series

Process Curve:

35℃ (30') → A (1/10B) → 10' → (3/10B) → 15' → (1/20C) → 10' → (3/10C) → 5' → (6/10C) → 60-80℃ (60-80min)

5. Process Formula and Dosage Control

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:

II. Continuous Pad Dyeing Process

Typical Flow: Pad → Dry → Pad (Fixing) → Steaming → Washing → Drying

Process Parameters:

III. Cold Pad Batch (CPB) Process

1. CPB Dyeing

Pad (20-30℃, Pick-up 60-80%) → Batching (8-24h) → Washing → Drying

2. Alkaline Components Table

IV. Cold Pad Batch Discharge Printing Process

1. Discharge Formula Comparison Table

V. Printing Dye Production Machinery Process Precautions

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.