Quality control of multifilament yarn using inspection system of non-contact type yarn form

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K21587
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Clothing life/Dwelling life; Dynamics/Control
• Research Institution: Fukui National College of Technology
• Principal Investigator: Kaneda Naoto 福井工業高等専門学校, 機械工学科, 講師 (10507148)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 仮撚加工法 / 加撚 / 解撚 / 見かけ糸太さ / 撚角度 / 糸傾角 / サージング

Outline of Final Research Achievements

In this research, we developed an inspection system of non-contact type yarn form during all the processing steps from the original to false-twisted yarn. In the heating and twisting parts, due to the influence of a heater, the yarn form drastically changed firstly regarding the glass transition temperature. In the twisted part, twisting and untwisting actions worked by the respective discs, but when viewed overall, twisted, transient, and untwisted areas existed. If these areas can be arbitrarily changed, it becomes possible to study the optimal number of discs, shapes and materials in the twisted part. As a result, it can reduce the design cost of all the processing steps. Furthermore, we concluded that the shortage of twisting tension to the vibrations of twisting part would be one of the causes of the surging. Because the optimal yarn tension can be set under the surging suppresses, it can lead to the improvement of the yarn quality.

Free Research Field

繊維機械