Dyeing System with Low Liquor Ratio, High Speed and Superior Efficiency
The fabric floats inside the liquid-filled guide tube, completely avoiding friction against the tube's inner wall. With a running speed ranging from 300 to 500 meters per minute, the hthp textile dyeing machine effectively minimizes fabric pilling. Its unique wave-patterned inner mesh design further cuts down fabric friction, ensuring smoother operation while lowering water consumption. The liquor ratio can be reduced to as low as 1:6–8, which is adjustable based on fabric type and specific process requirements.
Working Principle
The HTHP textile dyeing machine operates within a sealed stainless steel chamber, heating the dye liquor to 120-140℃ (above the atmospheric boiling point) under a pressure of 0.25-0.44 MPa. This accelerates the diffusion of dye molecules into the fiber, achieving deep penetration and uniform color fixation, making it particularly suitable for disperse dyes on polyester. Its core feature is a reversible dye liquor circulation (from inside to outside/from outside to inside) to ensure uniform dye distribution.
Feature
1. Structural Characteristics
Adopting an upward-running design integrated with an internal cloth guide tube, this equipment is ideal for dyeing a wide range of premium knitted fabrics, accommodating a fabric weight span from 50g/m² to 800g/m².
2. Low Tension & High Flow Rate
The hthp textile dyeing machine with low-pressure, high-flow nozzles, the machine minimizes fabric tension during operation, effectively reducing yarn fuzzing and breakage. Meanwhile, it enhances fiber swelling and optimizes the overall dyeing uniformity.
3. Wrinkle & Curl-Free Dyeing
The integrated fabric-expanding mechanism enables proper stretching of fabrics during the buffer stage, with continuous shape adjustments in the dye liquor. This prevents the formation of wrinkles and curls, delivering a smooth, flat finish with consistent dimensional stability.
4. User-Friendly Operation
Featuring a highly intelligent, high-precision computer control system, the equipment supports fully automated chemical dosing, along with efficient water intake and drainage functions. Additionally, an optional preparation tank is available for heat energy recovery, contributing to lower operational costs.
5. Precise Fabric Speed Regulation
High-performance variable frequency stepless speed control ensures that fabric running speed can be precisely matched with process time across the entire speed range, eliminating surface defects caused by speed synchronization mismatches.
Operating Instructions
Dye Selection
Use highly diffusive disperse dyes; avoid using dyes with poor solubility to prevent streaking.
Temperature Control
Heat slowly (≤4℃/min above 80℃); avoid rapid temperature changes to prevent uneven dyeing.
ozzle Adjustment
Use a small nozzle for thin fabrics and a large nozzle for heavy fabrics to prevent clogging.
Safety
Do not wipe the observation window with a damp cloth above 100℃; ensure pressure is released before opening the top cover.
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