Discharge Printing Paste 533-1 | Water-Based Screen Printing Materials | CLT
CLT 533-1 is a water-based discharge printing paste formulated for reactive cotton fabrics. It helps achieve high whiteness and good fastness with a soft hand feel, while reducing the risk of fabric damage in discharge printing.
Key Features:
Technical Specifications | 533-1 Discharge Paste
Key technical specifications and compliance data for CLT 533-1 discharge printing paste.
Product Specifications
Printing Guide | 533-1 Discharge Paste
Recommended printing conditions and process steps for discharge printing using CLT 533-1.
Printing Conditions
| Humidity | 50-80% |
| Temperature | Room temperature |
| Squeegee Hardness | 55-65 (oil-based) |
| Mesh Count | 100-150 mesh |
| Curing Temperature | 150-160°C |
| Curing Time | 120 seconds |
| Heat Press (optional) | 160°C × 15 seconds |
Printing Process
Mix 533-1 paste with discharge powder at the recommended ratio until fully uniform.
Print immediately after mixing. Avoid excessive viscosity; overly thick paste can reduce penetration and weaken discharge effect.
Cure right after printing at 150-160°C for 120 seconds (or heat press at 160°C for 15 seconds). Use the mixed paste within 4-6 hours.
Eco-Friendly Certifications & Test Results
Compliance highlights and restricted-substance test items for CLT 533-1.
Certifications
GB 18401
Chinese textile safety standard
OEKO-TEX 100
International textile safety standard
Adidas A-01
Adidas restricted substances list
Nike RSL
Nike restricted substances list
Harmful Substance Test Results
| Parameter | Value | Standard |
|---|---|---|
| Formaldehyde | <20 ppm | OEKO-TEX 100 |
| Soluble Heavy Metals | PASS | EN71-3 |
| AP | PASS | Standard |
| APEO | PASS | OEKO-TEX 100 |
| Phthalates | PASS | OEKO-TEX 100 |
| Organo-tin Compounds | PASS | Standard |
| AZO Dyes | PASS | OEKO-TEX 100 |
| Polycyclic Aromatic Hydrocarbons | PASS | Standard |
Finished Product Performance
Performance results for printed fabric using CLT 533-1 discharge paste under the specified test conditions.
Test Conditions
Fabric
100% discharge-dyed cotton fabric
Printing Method
Hand printing (1 pass, 2 strokes)
Curing Condition
160°C × 120s
Performance Metrics
Softness
Grade 5
5-grade scale (5=very soft, 1=hard)
Elasticity
Grade 1
5-grade scale (5=excellent, 1=poor)
Whiteness
Good
Visual inspection
Machine Wash Fastness
Pass
60°C wash cycles; wash & dry ×5
Blocking Resistance
No sticking and no damage
80°C, 5 kg load, 24 hours
Formulation & Auxiliaries
Recommended formulation and production notes for discharge printing.
Recommended Formulation
| Component |
|---|
| 533-1 Discharge Paste |
| Discharge Powder |
Auxiliary Agents
Humectant (MDR)
Usage
As needed
Purpose
Reduce screen drying in low humidity
Notes
Recommended when humidity < 50%.
Storage & Shelf Life
Storage guidance to maintain stability and discharge performance of CLT 533-1.
Storage Conditions
Temperature
5-35°C
Humidity
Cool and ventilated place
Sealing
Keep container tightly sealed
Shelf Life
10 months from manufacturing date
Important Warnings
- ⚠Use mixed paste within 4-6 hours after adding discharge powder
- ⚠Cure immediately after printing to achieve discharge effect
- ⚠Do not mix different discharge powders together; follow safe handling procedures
- ⚠Run pre-tests to confirm fabric dischargeability and shade results