{"title":"Improved Measuring Method for Heat and Moisture Transfer Properties of Fabrics by Injecting Water to a Simulated Skin","authors":"S. Otsuki, H. Wakano, K. Adachi","doi":"10.4188/JTE1955.38.44","DOIUrl":"https://doi.org/10.4188/JTE1955.38.44","url":null,"abstract":"","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"31 1","pages":"44-51"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88036815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
There are many two-dimensional computer systems to garment patterns. However, they are unable to deal with three-dimensional design.We set up to develop a CAD system dealing with three-dimensional drawing and an automatic pattern making.This system should have at least following two abilities: that is, (1) versatile technology by which an appropriate pattern can be obtained only inputing a pictorial fashion drawing which is allowed to be designed freely, (2) a sophisticated method which can simulate an entity of the garment in three-dimension which has been produced from the pattern just made by the foregoing system. So these two activities must be coordinated with each other.An artificial intelligence will be used to realize (1), and heuristic methods were exploited in (2).
{"title":"Three-Dimensional Computer System for Automatic Pattern Making and Simulation","authors":"Ikuo Ito, Keisuke Kawauchi, Chiaki Odagaki","doi":"10.4188/JTE1955.38.68","DOIUrl":"https://doi.org/10.4188/JTE1955.38.68","url":null,"abstract":"There are many two-dimensional computer systems to garment patterns. However, they are unable to deal with three-dimensional design.We set up to develop a CAD system dealing with three-dimensional drawing and an automatic pattern making.This system should have at least following two abilities: that is, (1) versatile technology by which an appropriate pattern can be obtained only inputing a pictorial fashion drawing which is allowed to be designed freely, (2) a sophisticated method which can simulate an entity of the garment in three-dimension which has been produced from the pattern just made by the foregoing system. So these two activities must be coordinated with each other.An artificial intelligence will be used to realize (1), and heuristic methods were exploited in (2).","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"25 S2","pages":"68-77"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72559083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1992-01-01DOI: 10.4188/TRANSJTMSJ.45.8_T115
M. Matsudaira
In order to study the relationship between fabric shear and bending vibrational properties and beautiful appearance of clothes, correlation coefficients between those characteristic values and the score of beautiful appearance of moving flared skirt obtained subjectively were calculated. If the damping ratio of fabric shear vibration was smaller, the skirt was evaluated to be more beautiful. If the damping ratio of fabric bending vibration at small curvature (curved with large radius of curvature) was smaller, the skirt was evaluated to be more beautiful. There was no good correlation between the beautifulness of moving skirt and fabric weight, drape coefficient, SHINAYAKASA, and Total Hand Value. (Received April 9, 1992) (Accepted for Publication July 13, 1992) 摘 要 目的:布 のせん断および曲げ振動特性から得 られ る特性値 と,主 観評価によって求めた衣服の外観の美との関連を見い出し, 衣服の動的 ドレープ挙動の美 しさに寄与する要因を明 らかにする. 成果:フ レアスカニ トの回転時の揺動の美は,布 のせん断振動特性および曲げ振動特性 と多いに関連がある.せ ん断振動特性 との関連では,せ ん断角の大小によ らず,振 動の減衰率が小さい(よ く振動する)ほ ど,ス カー トはより美 しいと判定 された. 曲げ振動特性 との関連では,曲 率の小 さな領域(大 きな湾曲部)に おける減衰率が小 さい(よ く振動す る)ほ ど,ス カー トはよ り美 しいと判定 された.布 の自重,SHINAYAKASA,THV,ド レープ係数などとスカー トの美 との相関は小 さかった. (平成4年4月9日 受理) (平成4年7月13日 審査終了)
In order to study the relationship between fabric shear and bending vibrational properties and美丽的appearance of clothes，correlation coefficients between those characteristic values and the score of beautiful appearanceof moving flared skirt obtained subjectively were calculated. If the damping ratio of fabric shearvibration was smaller，the skirt was evaluated to be more beautiful. If the damping ratio of fabric bending vibration atsmall目前(curved with large radius of curvature) was smaller，the skirt was evaluated to be more beautiful. There was no good correlation between thebeautifulness of moving skirt and fabric weight, drape coefficient, SHINAYAKASAand Total Hand Value. (Received April 9, 1992) (Accepted for Publication July 13，1992)摘要目的:从布的剪切和弯曲振动特性得到的特性值，与通过主观评价求得的衣服的外观美之间的关系，弄清对衣服的动态褶裥行为的美感做出贡献的因素。成果:弗勒斯卡尼旋转时的涨落美与布的剪切振动特性和弯曲振动特性有很多关系。在与剪切振动特性的关系中，不取决于剪切角的大小，振动的衰减率小。越振动)，刮痕被判定为更漂亮。与弯曲振动特性有关的是，曲率小的区域(大的弯曲部分)的衰减率越小(振动越好)，刮痕越漂亮。(平成4年4月9日受理)(平成4年7月13日审查结束)(平成4年7月13日审查结束)。
{"title":"Vibrational Property of Filament Woven Fabrics Based on Shear Deformation:Part 3: Relationship between Shear and Bending Vibrational Properties of Fabrics and Beautiful Appearance of Skirt in Dynamic State","authors":"M. Matsudaira","doi":"10.4188/TRANSJTMSJ.45.8_T115","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.45.8_T115","url":null,"abstract":"In order to study the relationship between fabric shear and bending vibrational properties and beautiful appearance of clothes, correlation coefficients between those characteristic values and the score of beautiful appearance of moving flared skirt obtained subjectively were calculated. If the damping ratio of fabric shear vibration was smaller, the skirt was evaluated to be more beautiful. If the damping ratio of fabric bending vibration at small curvature (curved with large radius of curvature) was smaller, the skirt was evaluated to be more beautiful. There was no good correlation between the beautifulness of moving skirt and fabric weight, drape coefficient, SHINAYAKASA, and Total Hand Value. (Received April 9, 1992) (Accepted for Publication July 13, 1992) 摘 要 目的:布 のせん断および曲げ振動特性から得 られ る特性値 と,主 観評価によって求めた衣服の外観の美との関連を見い出し, 衣服の動的 ドレープ挙動の美 しさに寄与する要因を明 らかにする. 成果:フ レアスカニ トの回転時の揺動の美は,布 のせん断振動特性および曲げ振動特性 と多いに関連がある.せ ん断振動特性 との関連では,せ ん断角の大小によ らず,振 動の減衰率が小さい(よ く振動する)ほ ど,ス カー トはより美 しいと判定 された. 曲げ振動特性 との関連では,曲 率の小 さな領域(大 きな湾曲部)に おける減衰率が小 さい(よ く振動す る)ほ ど,ス カー トはよ り美 しいと判定 された.布 の自重,SHINAYAKASA,THV,ド レープ係数などとスカー トの美 との相関は小 さかった. (平成4年4月9日 受理) (平成4年7月13日 審査終了)","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"1 1","pages":"33-38"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83951402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1991-07-25DOI: 10.4188/TRANSJTMSJ.44.7_T141
T. Nishimura, K. Nakamura, M. Nishimura, N. Mori
Viscoelastic flow patterns and pressure drop in single slit and equidistant multistage slit channels were investigated. In single slit channel, circularizer secondary flows were observed at the entrance, and abrupt expansion of streamlines (similar to die swell) was observed at the exit. In multistage slit channel, the circulating secondary flows at the first slit entrance were found to be the smallest compared with those at subsequent slits. These secondary flow regions depended on the first normal stress differences of the fluids. The pressure drop per slit, however, was the same through the channel. Relation between pressure drop and flow rate depended on the power law index.
{"title":"Flow Pattern and Pressure Drop in Viscoelastic Flow through Equidistant Multistage Slit","authors":"T. Nishimura, K. Nakamura, M. Nishimura, N. Mori","doi":"10.4188/TRANSJTMSJ.44.7_T141","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.44.7_T141","url":null,"abstract":"Viscoelastic flow patterns and pressure drop in single slit and equidistant multistage slit channels were investigated. In single slit channel, circularizer secondary flows were observed at the entrance, and abrupt expansion of streamlines (similar to die swell) was observed at the exit. In multistage slit channel, the circulating secondary flows at the first slit entrance were found to be the smallest compared with those at subsequent slits. These secondary flow regions depended on the first normal stress differences of the fluids. The pressure drop per slit, however, was the same through the channel. Relation between pressure drop and flow rate depended on the power law index.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"1 1","pages":"27-32"},"PeriodicalIF":0.0,"publicationDate":"1991-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90157443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The effects of NO2 gas on textiles are investigated by using the JIS L 0855 method.In the present study, we have investigated the effects of NO2 gas on nylon BCF yarn for carpet when exposed to a fixed concentration of NO2 gas for several hours continuously.The results of this study showed noticeable color change caused by NO2 gas exposure, though the present JIS method showed no such change.Moreover, it was recognized that the effects of NO2 gas on dyed textiles vary according to dye structure.
采用JIS L 0855法研究了NO2气体对纺织品的影响。在本研究中，我们研究了NO2气体连续暴露在固定浓度的NO2气体中数小时对地毯用尼龙BCF纱的影响。本研究的结果显示，二氧化氮气体暴露会引起明显的颜色变化，尽管目前的JIS方法没有显示出这种变化。此外，还认识到NO2气体对染色纺织品的影响因染料结构的不同而不同。
{"title":"Color Change of Nylon Carpets due to NO2 Fumigation","authors":"Junko Nihira, H. Iwamoto, T. Gunji","doi":"10.4188/JTE1955.37.78","DOIUrl":"https://doi.org/10.4188/JTE1955.37.78","url":null,"abstract":"The effects of NO2 gas on textiles are investigated by using the JIS L 0855 method.In the present study, we have investigated the effects of NO2 gas on nylon BCF yarn for carpet when exposed to a fixed concentration of NO2 gas for several hours continuously.The results of this study showed noticeable color change caused by NO2 gas exposure, though the present JIS method showed no such change.Moreover, it was recognized that the effects of NO2 gas on dyed textiles vary according to dye structure.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"63 1","pages":"78-83"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91044597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A check up system for picking mechanism on water jet looms is developed. This system catches the signal of water jet pressure with a pressure sensor, and detects the open-close of a clamper with a clamper sensor respectively, and measures such values as water jet pressure, jetting angle and flight start angle of weft yarn etc. As these measured results, this system can find the best condition of picking mechanism for weaving.This system is available for preventive maintenance of picking mechanism, and contributes to decrease loom stoppage and poor condition of weft flying resulting in improvement of flexible manufacturing.
{"title":"Development of Check up System for Picking Mechanism on Water Jet Looms","authors":"K. Chikaoka, Ryuji Shintani, T. Kinari","doi":"10.4188/JTE1955.37.49","DOIUrl":"https://doi.org/10.4188/JTE1955.37.49","url":null,"abstract":"A check up system for picking mechanism on water jet looms is developed. This system catches the signal of water jet pressure with a pressure sensor, and detects the open-close of a clamper with a clamper sensor respectively, and measures such values as water jet pressure, jetting angle and flight start angle of weft yarn etc. As these measured results, this system can find the best condition of picking mechanism for weaving.This system is available for preventive maintenance of picking mechanism, and contributes to decrease loom stoppage and poor condition of weft flying resulting in improvement of flexible manufacturing.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"33 1","pages":"49-57"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89428781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The behavior of coloring of loop pile carpet has still been unknown. Color evaluation of nylon BCF (Bulked Continuous Filament) loop pile carpet and lateral side of the pile yarn has been investigated by using various kinds of colorimeters where BCF stands for Bulked Continuous Filaments. The main results obtained are shown as follows:The measuring area should be varied accoding to the aim of color measurement.The relationship should be clarified between chromaticity coordinates (x, y) and the Y-values of lateral side of yarn and loop pile carpet in order to give the color to loop pile carpet.The color of a color-mixed loop pile carpet shows the weighted average of chromaticity point of each monochrome or fundamental color. In addition, the Y-value of loop pile carpet shows the average Y-value of each monochrome of loop pile carpet. The colorimetry of bright portion (top of the loop) and dark portion (darker portion between the two tops of loops) has shown the remarkable color difference between bright and dark portion. (ΔE*ab=30)The color of the loop pile carpet tends to be more affected by the color of light source with increasing the angle of incidence-reflection.
{"title":"Color Evaluation of Nylon BCF Loop Pile Carpets","authors":"Kumi Kouno, I. Hirai, T. Gunji","doi":"10.4188/JTE1955.37.93","DOIUrl":"https://doi.org/10.4188/JTE1955.37.93","url":null,"abstract":"The behavior of coloring of loop pile carpet has still been unknown. Color evaluation of nylon BCF (Bulked Continuous Filament) loop pile carpet and lateral side of the pile yarn has been investigated by using various kinds of colorimeters where BCF stands for Bulked Continuous Filaments. The main results obtained are shown as follows:The measuring area should be varied accoding to the aim of color measurement.The relationship should be clarified between chromaticity coordinates (x, y) and the Y-values of lateral side of yarn and loop pile carpet in order to give the color to loop pile carpet.The color of a color-mixed loop pile carpet shows the weighted average of chromaticity point of each monochrome or fundamental color. In addition, the Y-value of loop pile carpet shows the average Y-value of each monochrome of loop pile carpet. The colorimetry of bright portion (top of the loop) and dark portion (darker portion between the two tops of loops) has shown the remarkable color difference between bright and dark portion. (ΔE*ab=30)The color of the loop pile carpet tends to be more affected by the color of light source with increasing the angle of incidence-reflection.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"10 1","pages":"93-100"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90777656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Chiba, Shigetoshi Hayashi, K. Kojima, Ki-Won Song, K. Nakamura, A. Horikawa
The orientation of fibers has been investigated experimentally in fiber suspension flows of both Newtonian and viscoelastic fluids through a parallel plate channel and a planar channel with an abrupt contraction, and the development of the fiber orientation has been examined while the fibers flow along the channel. The effects of shear thinning and elasticity on the fiber orientation have been discussed.The fibers lie tangent to the streamlines with an increase in viscoelasticity in the flow through a parallel plate channel and a channel with an abrupt contraction. This phenomenon is essentially equivalent to the phenomenon that a slender body, namely a straight circular cylinder with a large length to diameter ratio, rotates towards a vertical orientation when falling through a quiescent polymer solution. High fiber alignment to the streamlines, thus, is attributed to the shear thinning and elsticity of the suspending fluids; however, elastic effect is most dominant.The state of fiber orientation is strongly influenced by the drastic change of the velocity field due to viscoelasticity and flow rate: the fibers align in a manner of wine-glass shape as the contraction is approached and then the distribution of fibers abruptly expands in the immediate downstream region of the contraction in a highly elastic fluid flow.
{"title":"Fiber orientation in Fiber Suspension Flow through a Parallel Plate Channel and an Abrupt Contraction Channel","authors":"K. Chiba, Shigetoshi Hayashi, K. Kojima, Ki-Won Song, K. Nakamura, A. Horikawa","doi":"10.4188/JTE1955.37.67","DOIUrl":"https://doi.org/10.4188/JTE1955.37.67","url":null,"abstract":"The orientation of fibers has been investigated experimentally in fiber suspension flows of both Newtonian and viscoelastic fluids through a parallel plate channel and a planar channel with an abrupt contraction, and the development of the fiber orientation has been examined while the fibers flow along the channel. The effects of shear thinning and elasticity on the fiber orientation have been discussed.The fibers lie tangent to the streamlines with an increase in viscoelasticity in the flow through a parallel plate channel and a channel with an abrupt contraction. This phenomenon is essentially equivalent to the phenomenon that a slender body, namely a straight circular cylinder with a large length to diameter ratio, rotates towards a vertical orientation when falling through a quiescent polymer solution. High fiber alignment to the streamlines, thus, is attributed to the shear thinning and elsticity of the suspending fluids; however, elastic effect is most dominant.The state of fiber orientation is strongly influenced by the drastic change of the velocity field due to viscoelasticity and flow rate: the fibers align in a manner of wine-glass shape as the contraction is approached and then the distribution of fibers abruptly expands in the immediate downstream region of the contraction in a highly elastic fluid flow.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"53 1","pages":"67-72"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76306059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The effect of some factors on the end breakage rate in the plain-weft knitting zone due to three kinds of yarn joints (an air-splice, a weaver's knot and a fisherman's knot) is investigated experimentally, using a combed cotton yarn c 30s/1. End breakage in the plain-weft knitting zone due to an air-splice hardly occurs under any knitting condition. Therefore, the air-splice is a very useful yarn joint in weft knitting. The knitting defect due to a weaver's knot or a fisherman's knot is almost always caused by end breakage in the plain-weft knitting zone. This end breakage occurs near the knot on the take-down side. The end breakage rate in the plain-weft knitting zone due to a weaver's knot or a fisherman's knot increases with the increase in the depth of stitch draw, the machine gauge, the input tension, and the take-down weight. Under every knitting condition, the end breakage rate due to a fisherman's knot is more than that due to a weaver's knot.
{"title":"Comparison of End Breakage Rate due to Splices and Knots in Plain-Weft Knitting Zone","authors":"Ryuzo Oinuma, E. Sasaki, Hiroshi Suzuki","doi":"10.4188/JTE1955.37.73","DOIUrl":"https://doi.org/10.4188/JTE1955.37.73","url":null,"abstract":"The effect of some factors on the end breakage rate in the plain-weft knitting zone due to three kinds of yarn joints (an air-splice, a weaver's knot and a fisherman's knot) is investigated experimentally, using a combed cotton yarn c 30s/1. End breakage in the plain-weft knitting zone due to an air-splice hardly occurs under any knitting condition. Therefore, the air-splice is a very useful yarn joint in weft knitting. The knitting defect due to a weaver's knot or a fisherman's knot is almost always caused by end breakage in the plain-weft knitting zone. This end breakage occurs near the knot on the take-down side. The end breakage rate in the plain-weft knitting zone due to a weaver's knot or a fisherman's knot increases with the increase in the depth of stitch draw, the machine gauge, the input tension, and the take-down weight. Under every knitting condition, the end breakage rate due to a fisherman's knot is more than that due to a weaver's knot.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"313 1","pages":"73-77"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73883141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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