How to evaluate the working efficiency and processing quality of high-temperature dyeing machines

1. Work efficiency evaluation:
Production speed:
Fabric running speed: Check the distance the fabric moves per unit time in the high-temperature dyeing machine, usually in meters/minute. Generally speaking, the faster the speed, the more fabric can be processed in the same time, and the higher the work efficiency. For example, some advanced high-temperature dyeing machines can reach a fabric speed of 50-130m/min or even higher, but the speed cannot be too fast, otherwise it may affect the dyeing quality.
Cycle time: A complete working cycle of the high-temperature dyeing machine includes steps such as feeding, dyeing, fixing, washing, and discharging, and the time required to complete a cycle is recorded. The shorter the cycle, the more cycles can be completed per unit time, and the higher the work efficiency.
Degree of automation of the equipment:
Automation control system: Evaluate whether the control system of the high-temperature dyeing machine can realize functions such as automatic feeding, automatic temperature control, automatic adjustment of dye concentration, automatic reversing, and automatic parking. The higher the degree of automation, the less dependent the equipment is on manual operation, which can not only reduce the time and error of manual operation, but also improve the continuity and stability of production, thereby improving work efficiency. For example, a high-temperature dyeing machine that uses PLC control and data communication technology can accurately control various process parameters and achieve an efficient production process.
Fault self-diagnosis function: A high-temperature dyeing machine with good fault self-diagnosis function can quickly and accurately locate the fault point when the equipment fails, and give corresponding prompts or alarms so that the operator can repair it in time, reduce equipment downtime, and improve the effective operation time of the equipment.
Continuous operation ability of the equipment:
Equipment stability: Whether the high-temperature dyeing machine can maintain a stable working state during long-term operation, such as whether the temperature control is accurate, whether the fabric tension is constant, and whether the transmission system is reliable. Equipment with good stability can reduce downtime or rework caused by equipment failure or process parameter fluctuations, and improve the continuous operation ability and work efficiency of the equipment.
Convenience of maintenance: Whether the maintenance of the equipment is convenient and fast will also affect the continuous operation ability of the equipment. For example, parts that are easy to disassemble and install, clear maintenance and operation instructions, etc. can reduce the maintenance time of the equipment and improve the utilization rate of the equipment.
2. Processing quality assessment:
Dyeing uniformity:
Appearance inspection: Unfold the dyed fabric and observe whether the color of the fabric is uniform under natural light or standard light source, and whether there are problems such as color difference, color flower, and color spot. The color of the fabric can be quantitatively analyzed by naked eye observation combined with professional color detection instruments, such as colorimeter, to evaluate the dyeing uniformity.
Slice detection: For some fabrics with high requirements for dyeing uniformity, the slice detection method can be used. Cut the fabric into thin slices, observe the distribution of dyes in the fabric fibers under a microscope, and judge whether the dyeing is uniform.
Color fastness:
Water washing color fastness: Wash the dyed fabric according to the standard water washing procedure, and then observe the color fading of the fabric during the washing process. The water washing color fastness can be evaluated by comparing the color changes of the fabric before and after washing. Generally speaking, the higher the water washing color fastness, the less likely the fabric is to fade during use, and the better the dyeing quality.
Rubbing color fastness: Use a rubbing color fastness tester to perform dry and wet friction tests on the dyed fabric to observe whether the fabric fades during the friction process and the degree of fading. Color fastness to friction is also one of the important indicators for measuring dyeing quality.
Physical properties of fabrics:
Fabric strength: Test the physical performance indicators such as breaking strength and tearing strength of fabrics before and after dyeing to evaluate the effect of the dyeing process on fabric strength. If the strength of the fabric after dyeing decreases significantly, it means that the dyeing process or equipment may have caused damage to the fabric and affected the quality of the fabric.
Dimensional stability of fabrics: Measure the dimensional changes of the length, width, thickness and other dimensions of the fabric before and after dyeing to evaluate the dimensional stability of the fabric. Fabrics with poor dimensional stability may deform, shrink and other problems during use, affecting the quality and use effect of the product.
Utilization rate of dye liquor:
Consumption of dye liquor: Record the amount of dye liquor consumed by the high-temperature jigger when processing a certain amount of fabric, and calculate the consumption rate of dye liquor. The lower the dye liquor consumption rate, the higher the utilization rate of the equipment for the dye liquor, which can not only reduce production costs, but also reduce wastewater discharge, and be more environmentally friendly.
Residue of dye liquor: After dyeing is completed, check whether there is any residual dye liquor in the equipment. Too much residual dye liquor will not only waste dye liquor, but also may affect the quality of the next dyeing. Therefore, the less dye residue there is, the better the cleaning effect of the equipment is and the higher the utilization rate of the dye.
If you want to learn about the working efficiency and processing quality evaluation methods of high-temperature dyeing machines, please pay attention to www.chinadyeingmachines.com!