| Project/Area Number |
04555219
|
|---|
| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
高分子物性・高分子材料（含機械材料）
|
|---|
| Research Institution | KYOTO INSTITUTE OF TECHNOLOGY |
|---|
Principal Investigator |
NISHIMURA Taro Kyoto Institute of Technology, Cooperative Research Center, Associate Professor, 地域共同研究センター, 助教授 (30027883)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SHIGEYAMA Masazumi Murata Machinery, LTD., M.J.S.Division, Researcher, MJS事業部
MORIHASHI Toshifumi Murata Machinery, LTD., M.J.S Division, General Manager, MJS事業部, 技術部長
SAKABE Hirosi Kyoto Institute of Technology, Textile Science Reasarch Associate, 繊維学部, 助手 (50107356)
|
|---|
| Project Period (FY) |
1992 – 1993
|
| Project Status |
Completed (Fiscal Year 1993)
|
| Budget Amount *help |
¥4,500,000 (Direct Cost: ¥4,500,000)
Fiscal Year 1993: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1992: ¥2,800,000 (Direct Cost: ¥2,800,000)
|
|---|
| Keywords | Air Jet Spinning / Yarn forming / core Yarn / 長短複合糸 / 革新紡績 / エアージェット / 可視化 |
|---|
| Research Abstract |
Analysis of air jet yarn forming has been carried out by use of a transparent jet nozzle. The forming was observed by a high speed video, a high speed camera and a camera. Ballooning of the yarn was observed between the front roller and the first nozzle, and between first nozzle and second zonnle, and between second nozzle and delivery roller. The rotating speed of the balloon was measured by a measuring apparatus scented by a photo-transistor and analyzed by FET analyzer. The rotating speed was about 200,000 rpm - 300,000 rpm and was dependent on the first nozzle pressure and second nozzle pressure. So it became clear that the mechanical properties and qualities of the yarn are dependent of the rotating speed of the balloon.
In order to develop a new yarn material, production of core yarn using filaments and staple fibers was tried. For easy observation, the black filaments and white staple fibers were used. Two kind of core yarns, 25% and 60% in staple fibers content, were tested. For 25% staple fiber core yarn, the surface was separated to two region of white and black. In case of wrong mechanical setting, most staple fibers became nap. For 60% staple fiber core yearn, the surface was covered completely by white staple fibers.
|
