巻号一覧
25 巻, 5 号
選択された号の論文の9件中1～9を表示しています
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川端 季雄1969 年 25 巻 5 号 p. 191-199
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリーThe following four hypotheses are presented for defining “handling” or “feeling”. (1) Handling criterion is used for many materials which are used for wearing or, if not, which have frequent chances of being touched by hand or by any other portions of the human body, (2) the main subject for the criterion is the mechanical properties of material, (3) the true judge of the criterion is the man who well knows about the mechanical properties relating with its end use, (4) the criterion depends on whether or not the mechanical properties are adequate for its usage.
It was discussed whether the criterion can be determined without human feeling following the hypotheses.
It is concluded that numerical evaluation of the mechanical properties is difficult at this stage because of its complex nonlinear properties. And author maintains that some careful checks of the nonlinear properties are important and effective to identify the handling grade of the tested material.
Some experiments have been done as an example of the above proposed method.抄録全体を表示PDF形式でダウンロード (1511K) -
小川 安朗, 成瀬 信子, 吉見 美智子, 元木 昭子1969 年 25 巻 5 号 p. 200-206
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリーThis study was made in an attempt to find out the correlation between the evaluation of handling by specialists and physical properties of wool fabrics for man's suits.
The test for the sensation of handling was made according to Scheffé's one pair comparison method, recording the value of sensation: “Koshi” (Stiffness), “Numeri” (Oily sensation), “Warmth” and “Handle”.
As physical properties, a round sample was extended to the warp, weft-and bias-directions within the range leaving no plastic extension under constant length and constant load.
From the hysteresis curve, the maximum load or extension, amount of work and loss energy were determined.
The correlations between these values of sensation of handling and physical values were determined.
A considerable correlation was noted between the sensation of handling and physical characteristics in the bias direction rather than warp or weft direction.抄録全体を表示PDF形式でダウンロード (476K) -
稲垣 勝彦, 赤川 直亮1969 年 25 巻 5 号 p. 207-214
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリーThe reflecting behavior of fiber is an important factor to solve the reflecting properties of fabrics. The reflecting properties of fabrics based on reflection of model fiber are studied by Kikuchi, Jeflries, Kida and other authers. But these are treated on regular reflection from fiber surface and the reflecting properties of fabrics are not solved sufficiently.
In this paper, by means of approximation of geometrical optics, three reflecting and refracting elements (regular reflection, transmission and internal reflection) from cylindrical fiber model are computed when incident light is plane polarized.
The results obtained are as follows.
1. The phenomena where polarizing properties of goniometric reflecting curves from cylindrical fiber are of quite different shape between two experimental conditions (ray strike vertical and aligned to fiber axis) can be explained by polarizing behavier of three reflecting and refracting elements.
2. Internal reflection is in forcus at specially fixed angle and at this angle rainbow coloured surface are observed under sun light for fabrics of P. E. T. filament with circular cross section.抄録全体を表示PDF形式でダウンロード (517K) -
稲垣 勝彦, 赤川 直亮1969 年 25 巻 5 号 p. 215-222
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリーThe lustre is an important factor for appearance of fabric.
It is interesting to study relations between sensory evaluation of lustre and optical property of fabric.
These relations were examined by means of multiple factor analysis. The reaults obtained are as followes.
1. There are two independent bases, quality and quantity of lustre, for visual evaluation of lustre.
2. Physicalvalues of fabric lustre based on goniophotometric curve are related to not quality but quantity of lustre. On the other hand, the expression by means of polarized light is related to quality of lustre.
3. Quality of lustre is influenced by internal reflection and transmisson from fiber. Quantity of lustre is influenced by reflection that has directional property.抄録全体を表示PDF形式でダウンロード (496K) -
小林 茂雄1969 年 25 巻 5 号 p. 223-232
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリーThe composite characteristic called “fuai”, in English textile trade “handle”, is mainly tactile feelings for fabrics. It is interesting to study what physical properties correlate to “fuai”.
In this paper, principal component analysis were applied to discuss the relation between four subjective evaluations and twenty-three physical measurements for worsted-and woolen type women's suiting fabrics. Twelve samples were ranked for the qualities of coarseness, firmness, fullness and “koshi” by twenty-four specialists. On the other hand. physical properties of the samples were measured for weight, thickness, specific volume, compressibility, compressional resilience, cover factor, crease resistance, static and kinetic friction, flexural rigidity, etc. From the score matrix of subjective and objective tests, the correlation matrix was calculated and factoranalysed.
Futhermore, six samples were chosen from the twelve fabrics used previously. These were ranked for subjective liveliness by four experts. In this test the subjective liveliness ratings were judged by high and low tactile pressure. The physical properties of fabrics on the subjective liveliness were examined.
The results were as follows:
(1) Subjective liveliness ratings were not affected by the difference in tactile pressure between high and low. These subjective ratings can be correlated to the crease resistance and flexural rigidity.
(2) Principal component analysis yielded five major factors, namely, subjective coarseness, crease resistance, weight, friction, and flexural rigidity.
(3) Subjective coarseness and fullness could be mainly represented by the physical characteristics for fabric surface structure, and the subjective firmness and “koshi” by crease resistance.抄録全体を表示PDF形式でダウンロード (643K) -
横沢 三夫, 保科 侑1969 年 25 巻 5 号 p. 233-240
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリーThe pliable handle of textile fabrics different from paper and plastic film may be due to the large deformation in shear.
In this paper, firstly the typical load-deformation curves in shear of silk fabrics such as Habutae, crepe and taffeta, and more nonwoven fabric, paper and glass cloth are discussed generally, secondly the softness of silk fabrics are examined by the relation between bending stiffness EI and shear angle _??_, and finally the relationships between air quantity ratio and shear properties, and also the relations between sensory scale values of softness and flexural rigidities and shear angles for Habutae cloths were investigated. The results obtained were as follows:
1. The shapes of shearing load-deformation curves are different by the kinds of fabrics. They may be explained by the effects of frictional and elastic forces, on the other hand the character of fabric can be assumed by the shape of load-deformation curve in shear.
2. The relation between the bending stiffness EI and shear angle _??_ of silk fabrics shows an inverse correlation. Assuming that softness is dependent on shear angle _??_ and liveliness depends upon bending stiffness EI for silk fabrics, it is considered that when both EI and _??_ of fabrics are large its fabric will show soft and lively handle.
3. Shear angle for Habutae cloths increase as the air quantity ratio increase. The air quantity ratio on Habutae cloths is related to shear angle _??_ and apparent specific gravity and percentage of air quantity in the fabric. The sensory values of softness on Habutae cloths are largely connected with shear angle _??_ rather than in flexural rigidity EI. From the above fact it is considered that Habutae cloths become soft in proportion to the air quantity ratio increase and also the deformation in shear increase.抄録全体を表示PDF形式でダウンロード (593K) -
中里 博明, 目黒 正憲1969 年 25 巻 5 号 p. 241-247
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリーThe luster of woven fabrics is an important property in use. In this paper, the correlation between sensory test values and reflective properties measured by goniophotometer or color-difference meter was investigated.
Samples are three kinds of woven silk fabrics, and they were dyed in 16 colors respectively. The assessment of gloss was carried out by means of paired comparison. The results obtained are as follows:
1. It is considered generally that main effects in analysis of variance for paired comparison is highly significant.
2. Specular gloss and lightness have strong correlation with the sensory test values.
3. The correlation between the sensory test values and contrast gloss is not significant.
4. The correlation between the sensory test values and chromaticity is not significant.抄録全体を表示PDF形式でダウンロード (345K) -
因子分析法による“腰”の解析大村 寧, 若山 一夫, 井上 友一1969 年 25 巻 5 号 p. 248-255
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリー“koshi” is one of the handling qualities. This term has been used not only in fabrics but in other ways only in Japan. We have discussed this quality on the fabrics, using a discriminant function analysis1).
In this paper, the relation between the sensory value for handling and the physical properties of foam material was investigated statistically using the method of factor analysis. Six urethane foam materials were selected as samples. Generally, the determinations of the physical properties corresponding to the handling have been taken a subjective view by the analogy of experience. But we afresh tried to sellect the physical properties for discussion on the objective data, and on these objective properties factor analysis were applied to define the mutual relations.
The results obtained as follows:
(1) The physical properties contributed to plus for the sensory value are gradient of compressive stress in the second linear part on S-S curves, modulus of compressive elasticity, toughness*, restorative stress and restoration energy. Above all, gradient of compressive stress and modulus of compressive elasticity have expressly a close resemblance and a high correlation to the sensory value.
(2) Compressive energy and compressive stress contribute negatively for the sensory value.
(3) Gradient of compressive stress in the first linear part on S-S curves and gradient of restorative stress have no resemblance with the sensory value.
Further, the experts of foam finishing and inspection assessed the samples by the paired comparison.抄録全体を表示PDF形式でダウンロード (557K) -
荻田 哲也, 岡島 三郎, 池田 佐喜男1969 年 25 巻 5 号 p. 256-260
発行日: 1969/05/10
公開日: 2008/11/28
ジャーナル フリーIn the preceding papers the effects of the cloth structure and yarn density on the crease resistance (crease recovery angle) had been studied on spun clothes. This paper is concerned with the relationships between the clothes structure, yarn density and crease recovery angle of the filament clothes in which structure varies concurrently with yarn density. It became evident that in the case when weft was bended the crease recovery angle increased with increase in floating count of fabric structure as had been found for spun fabrics, However, the somewhat different results were obtained in the case when warp was bended.抄録全体を表示PDF形式でダウンロード (303K)
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