Design and production of sustainable and biodegradable woven fabric with renewable pla (polylactic acid) fiber

2- In accordance with claim 1, a method for obtaining environmentally-friendly, sustainable, and biodegradable yarns by subjecting the PLA (polylactic acid), which is used in many different sectors such as the food packaging industry, health and medical industry, construction industry, cosmetic industry, and textile industry, to a variety of procedure steps with the open-end method, and a new fabric to be used in the textile sector thanks to the weaving of the said yarns, and its feature is that it consists of the following procedure steps:

• PLA fiber is subjected to the blowroom system to ensure that PLA fiber is made even and cleaned roughly;
• PLA fiber taken from the blowroom system arrives at the carding machine, and fibers are cleaned and disentangled here;
• PLA moved by air from the blowroom system is fed from the chute feed into the taker-in at a fixed amount;
• The taker-in feeds these fibers to the cylinder since they rotate in the same direction and the cylinder rotates faster;
• It also removes 70-75% of noil and foreign particles arriving at the card;
• Carding procedure is performed between the cylinder and the flats;
• Carded fiber arrives at the doffer;
• Accumulation takes place thanks to the opposing directions of wires, the same direction of rotation, and the higher peripheral speed of the cylinder compared to the peripheral speed of the doffer;
• The fiber is removed from the doffer with the stripping system;
• In the delivery funnel and calender rollers, the web is collected through the web funnel in the calender rollers and made into a round sliver;
• The sliver is brought to the drawing frame to reduce sliver irregularity by way of doubling and drafting, and the whole sliver is homogenized here;
• The thickness of slivers is measured by two rollers prior to their entry to the drafting zone;
• Feeding is increased or decreased in case of thinner or thicker slivers;
• If the material is thick, then the back rollers are slowed down and the material is fed slowly or the front rollers are accelerated so that this thick part is ensured to be properly drawn;
• The slivers coming out of the drawing frame are fed into the cans and these cans are later taken to the open-end machine to be processed;
• Fibers subjected to the opening procedure are in the form of individual fibers;
• Then, a portion of fiber mass is fed into the rotor and pulled toward the edges by the impact of centrifugal forces;
• fibers are twisted via yarn-end between twist funnel and rotor wall, and yarn formation is achieved.