FLUID JETTING DEVICE HAVING YARN COLLISION UNIT

摘要

PROBLEM TO BE SOLVED: To provide a fluid jetting device capable of stably producing a bulk- textured yarn having uniform tangles and loops imparted thereto with a good operating efficiency. SOLUTION: This fluid jetting device is obtained by making a yarn collision unit 14 assume a round shape having a threading hole 18 in the central part and providing a circumferential part 16 which is a collision part of the yarn other than the threading hole 18 having a bulge with a curvature in the fluid jetting device equipped with a cylindrical yarn guide hole 12 for running a core yarn therethrough and the yarn collision unit 14 for making the yarn collide therewith near an outlet of the yarn guide hole 12. In the fluid jetting device, the yarn running through the yarn guide hole 12 collides with the circumferential part 16 of the yarn collision unit 14 and is then passed through the threading hole 18 and taken off. The hole diameter of the threading hole 18 is 0.8-1.4 mm and the curvature of the circumferential part 16 is 1.5-2.0. The width of the circumferential part 16 is 2.0-3.3 mm.