I. Mechanical System Problems 1. Non-parallel or worn guide rollers: Misaligned installation or wear from prolonged use of the fabric roll and guide rollers can cause uneven fabric stress, leading to
I. Detecting Abnormalities During Equipment Operation 1. Listen for Sound Changes: If the jigger dyeing machine makes a "clunking" sound or periodic abnormal noise when changing direction or
I. Core Cause Analysis 1. Outdated Control System Traditional single-frequency converters or DC motor controls have slow response and lack real-time feedback, making it difficult to cope with tension
I. Color difference between the beginning and end (lighter and darker ends) Cause: The dye concentration is not consistent during the dyeing process, especially noticeable in giant roll dyeing machine
I. Pre-operation Preparation 1. Chemical Pretreatment Dyes and auxiliaries must be fully dissolved and filtered in the chemical tank to prevent undissolved particles from causing color stains or uneve
I. Core Measures to Avoid Edge-Center Color Difference (Left-Center-Right Color Difference) 1. Optimize Equipment Condition Adjust the rack balance: Thin fabrics (such as nylon and polyester taffeta)
I. Recovery Process and Time Allocation 1. Thoroughly Rinse Residual Agents (30-60 minutes) Use plenty of clean water to circulate and rinse the vat until the effluent pH is neutral (pH≈7) to pr
I. Abnormal Operating Signals When the equipment exhibits the following phenomena during operation, it indicates that dirt may have accumulated inside the dye bath, affecting system performance: 1. Si
I. Removal of Oligomers Oligomers easily precipitate and adhere to the cylinder wall at high temperatures, affecting dyeing uniformity. 1. Alkaline washing with NaOH or acidic sulfite detergent can ef
I. Equipment Operational Abnormalities These problems often stem from mechanical wear, control system malfunctions, or inadequate maintenance: 1. Slow Heating/Cooling: Scaling in the heat exchanger or
I. Real-time Status Monitoring Based on Sensor Data Modern liquid flow dyeing machines are widely equipped with various sensors, which serve as the fundamental information source for fault prediction:
I. Standardize operating procedures and eliminate human error. 1. Strictly adhere to standard operating procedures (SOPs). Before each start-up, confirm that the fabric loading is within the equipment