There are many harvesting methods during cotton harvest

The average elongation at break is generally controlled within 2%. . (1) The new carding double cotton box feeder uses a pressure sensor and a variable frequency speed control motor to control the density of cotton batt in the box, so that the cotton layer fed to the card is uniform in length and width, and the sliver weight is uneven. The efficiency of the automatic winder mechanical and electrical cleaning is improved. 02 Formation and distribution of neps (1)

There are many harvesting methods during cotton harvest that will produce neps impurities in raw cotton. In recent years, After the revolution of materials and processing technology, the service life of steel rings in China has been increased to 3 to 5 years, and the traveller life has also been improved, like a fluorine-plated traveller. However, some fabrics have special hairiness, so the fabric has a certain style.Different fabric structures and weaving tensions have different shrinkage rates. (3) When the fiber is in a wet state, the fiber swells due to the immersion solution, which makes the fiber diameter larger.The shrinkage of a fabric is the percentage of shrinkage of the fabric after washing or soaking in the fabric.

Density fabrics have different shrinkage rates depending on the density. 4. The fiber also behaves differently under different conditions such as internal structure and heating temperature and time. 5. For example, the boiling water shrinkage of processed polyester staple fiber is 1%, the boiling water shrinkage of vinylon is 5%, and the shrinkage ratio of hot air is 50%. Each of these three steps will affect the shrinkage of the fabric

Long thick knots are yarn defects that are prone to occur in spinning mills, and are extremely harmful. Weaving on the cloth surface can cause rough warp weft (weaving) or cross-run defects (knitting). This kind of yarn defect is difficult to repair, and even causes defects such as cutting, drop, etc., the loss is large, and sometimes it can cause customers' economic claims. Occasional long rough spots are mainly generated in the pre-spinning and roughing process, mainly due to operating reasons, equipment and other reasons. Improper process design can also cause such yarn defects. Today, the analysis of the causes of roving yarn defects is started from the equipment such as the stripping knife rollers, roving spindles and false twisters, and roving blower blowers under the roving frame, hoping to provide some useful reference for the production management of textile enterprises. 1.

Megosztás a facebookon