Establishing Core Sampling Rules for Raw Cotton Quality Verification
Core sampling raw cotton requires deep core extraction, standard atmosphere conditioning, and calibrated instrument verification to secure commercial payment accuracy.
Honeydew Stickiness Thermodetector
Analytical Instrument
Laboratory heating systems for textile fiber evaluation measure the sticky sugar contamination on cotton samples. The honeydew stickiness thermodetector applies heat and pressure to identify residues left by insects such as whiteflies and aphids. These residues pose a severe risk to spinning machinery.
Testing Process
An operator places a weighed cotton specimen between two sheets of special paper. The honeydew stickiness thermodetector presses this sandwich at a controlled temperature to melt the sugars, which causes them to stick to the paper surface. When the sheets are separated, the sticky points are counted manually or by an optical scanner to determine the severity of the contamination.
Sticky Deposits
Insect sugars do not dry out completely and remain highly adhesive.
Factory Prevention
Cotton spinning mills use these test results to avoid processing highly contaminated lots. When sticky cotton is fed into high-speed carding or spinning machines, the sugars build up on the metal rollers, causing the fibres to wrap around them and break. This problem forces the mill to halt production for manual cleaning, which reduces efficiency and increases labor costs.
By identifying sticky bales before opening them, the mill can blend them with clean cotton to lower the overall sugar concentration.