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Volume 8, Issue 4
Displaying 1-4 of 4 articles from this issue
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Kiyohisa Fujino, Wajuro Itani1962 Volume 8 Issue 4 Pages 1-8
Published: 1962
Released on J-STAGE: July 08, 2008
JOURNAL FREE ACCESSThe authors have studied experimentally the bearings which the relative surface speed and the weight of cotton accumulating on the carding surface have on the number of neps and fiber orientation.
Results:
(1) Fiber orientation in card webs is found to be deteriorated by the interaction between the cylinder and doffer, or between the doffer and doffer comb.
(2) Fiber orientation in card slivers improves with an increase in calender draft.
(3) With an increase in the weight of cotton depositing on the cylinder, or with an increase in the speed of the taker-in roller or flat, fiber orientation on the cylinder improves and neps in the card webs increase in number.View full abstractDownload PDF (593K) -
Part 2 Components of Flat Strip and Their Rates of Accumulation on a FlatChoji Nozaki, Yoshitomo Mineo, Kunisuke Ando, Susumu Hasegawa, Hiroshi ...1962 Volume 8 Issue 4 Pages 9-18
Published: 1962
Released on J-STAGE: July 08, 2008
JOURNAL FREE ACCESSThe carding and cleaning action of flats on a cotton card was analyzed by feeding cotton lap to a card equipped with stationary flats located at different places. The amount of flat strip depositing on flats was investigated in relation to the operating time, the location of the flat, and different components of flat strip.
The weight of flat strip and longer fibers depositing on a flat increased with the number of fiber tufts contained in cotton lap. At first, flat strip accumulated very rapidly on a flat, but later the rate of accumulation suddenly declines. The rate of trash deposition on flat depends much on the trash content of the passing fibers, but it did not decrease with time. The rate of short fiber deposition was between the rate for longer fibers and the rate for trash.
It was predicted from these findings that the speed of moving flats affected the weight of flat strip but did not affect the weight of trash depositing. As a result, an increse in the moving speed of flats does not improve cleaning action, although it increasaes wastes. It was also expected that the opening of fibers in the lickerin part reduced the weight of flat strip. These predictions were proved correct by experimental data.View full abstractDownload PDF (792K) -
Hisashi Kamogawa, Eisaku Kanda, Hisao Imai1962 Volume 8 Issue 4 Pages 19-27
Published: 1962
Released on J-STAGE: July 08, 2008
JOURNAL FREE ACCESSObjective:
With the aid of a 16-mm high-speed movie camera and a Kerr Cell Camera, the authors have investigated how cotton and rayon fibers behave in a running card.
Results:
Valuable information has been obtained on the air current under the lickerin and under the cylinder-doffer contact. Considerable information has also been obtained on the behavior of fibers on the lickerin, cylinder and doffer, particularly with respect to fiber orientation.View full abstractDownload PDF (626K) -
Ichiro Ohno1962 Volume 8 Issue 4 Pages 28-36
Published: 1962
Released on J-STAGE: July 08, 2008
JOURNAL FREE ACCESSDownload PDF (602K)
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