All issues
Volume 31, Issue 6
Displaying 1-8 of 8 articles from this issue
- |<
- <
- 1
- >
- >|
-
1978 Volume 31 Issue 6 Pages T102
Published: 1978
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSDownload PDF (89K) -
Part 2 : Theory of Compressional Deformation of Woven FabricsSueo Kawabata, Masako Niwa1978 Volume 31 Issue 6 Pages T88-T95
Published: June 25, 1978
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSAn assumption has been made that a unit structural model of fabrics is a rectangular box having the width equal to the weft yarn space, length equal to the warp yarn space and height equal to the fabric thickness. And the box is filled by two layers of fiber groups, one is the layer of warp yarn and another is that of weft yarn. The compressional. force applied to the box along the height direction compresses the box and changes only the height of the box, that is, thickness of the fabric. The pressure-thickness relation is easily introduced from the compressional properties of the warp and the weft yarns which have been already introduced in the earlier part of the series of this paper.
As well known, the initial thickness of the fabric varies with the finishing condition. A distinctive point of this theory is that the initial thickness of fabric can be introduced as an initial condition of the calculation. This makes the theory very useful in the practical application. Experimental works have also carried out to examine the accuracy of this theory and obtained good agreements between predicted results from theory and the observed results from the experiments.View full abstractDownload PDF (2960K) -
Sueo Kawabata, Hideo Morooka1978 Volume 31 Issue 6 Pages T96-T102
Published: June 25, 1978
Released on J-STAGE: October 27, 2009
JOURNAL FREE ACCESSFrictional properties of yarns are related not only with the frictional property of fibers but also with the structure of the yarn. This paper aims to divide experimentally the apparent value of frictional coefficients into those two factors. For this nurpose the frictional coefficient between a yarn and a stell rod is measured. The steel rod of 0.5mm thick crossing at right angles to the yarn axis moves on the yarn surface at a constant speed.
The assumption was made that :
μ=μA+μBwhere,
μ : the frictional coefficient,
μA : the component related only with the surface contact between the steel and the fiber, that is, the frictional coefficient between the rod and the fiber.
μB : the component related with the other effects including the effect of yarn deformation during the displacement of the rod.
μAis measured directly by the friction measurement between the rod and the fiber.A new apparatus is used to determine μB. A stell rod rotates on the yarn surface without slippage to pick up the component of the force which induces the μBcomponent. It is confirmed that the sum of the μAand the μBwhich are separately measured agrees well with the apparent value of μ. And the result shows that the μBoccupies more than 60% of μ and this percentage becomes greater when the yarn is deformable against the lateral compression.View full abstractDownload PDF (6384K) -
I. Hashimoto1978 Volume 31 Issue 6 Pages P242-P246
Published: June 25, 1978
Released on J-STAGE: February 12, 2010
JOURNAL FREE ACCESSDownload PDF (673K) -
Y. Iwata, K. Yasui1978 Volume 31 Issue 6 Pages P247-P252
Published: June 25, 1978
Released on J-STAGE: October 27, 2009
JOURNAL FREE ACCESSDownload PDF (4194K) -
T. Sato1978 Volume 31 Issue 6 Pages P253-P259
Published: June 25, 1978
Released on J-STAGE: October 27, 2009
JOURNAL FREE ACCESSDownload PDF (807K) -
Part 2 : Computerized Float Stitch Pattern Production System for Electronic Circular Knitting MachineRihei Miyashita, Ryosaku Matsuzaki, Yoshiji Ichimaru, Sotokazu Sanada1978 Volume 31 Issue 6 Pages P260-P269
Published: June 25, 1978
Released on J-STAGE: October 27, 2009
JOURNAL FREE ACCESSTo achieve a technological progress in a float stitch pattern designing and production field, a computerized float stitch pattern production system for electronic circular knitting machine has been examined and completed.
The main features of the system are :
(1) An original pattern for float stitch knitting can be converted into a pattern information tape by a pattern analyser and a cord transfer software originally developed.
(2) The pattern information tape is used for a variety of computerized pattern production systems.
(3) The accomplished electronic float stitch pattern knitting system, a total system comprising pattern analysing system and circular knitting machine control system, is easy in use and highly processable for a variety of knitting patterns.
(4) Using this system, only one operator can process quickly (whithin 1 hour) from pattern analysing to electronic circular knitting of single or double float stitch pattern. This system can produce knit fabrics of high-quality by precise float stitch patterns and comply with market needs promptly.View full abstractDownload PDF (3630K) -
Sei Uchiyama, Naoichi Sumi, Yasufumi Akamatsu, Hideo Noshi1978 Volume 31 Issue 6 Pages P270-P277
Published: June 25, 1978
Released on J-STAGE: October 27, 2009
JOURNAL FREE ACCESSA Preliminary test has been made in order to get information on classification of the womens' preference of outerwear design. A method of factor analysis has been applied onto the data obtained by a questionnaire survey of young women. Results have shown that each panel is classified into one of several groups and some relationships are found between the groups and the women attitude to living. (1) The women of the first group, are of distinct personal character and prefer sportive wears. This group shows a rather cheerful native. (2) Women of the second group prefer chic suits and like to select the. profession of an expert. (3) Women of the third group rather prefer quiet looking design and like to marry in near future. (4) Women of the last group prefer casual look wears and are hysterical by nature.View full abstractDownload PDF (4476K)
- |<
- <
- 1
- >
- >|