Pub Date : 2007-02-25DOI: 10.4188/TRANSJTMSJ.60.94
Takashi Harada, Masumi Gotoh, Hatsumi Katsuma
{"title":"最近の特化合繊素材（衣料用・家庭用）について［2005 ～ 2006］","authors":"Takashi Harada, Masumi Gotoh, Hatsumi Katsuma","doi":"10.4188/TRANSJTMSJ.60.94","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.60.94","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114754803","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 : 2005-10-25DOI: 10.4188/TRANSJTMSJ.58.T128
Lina Wakako, M. Kamijo, Y. Matsumoto, H. Morooka
{"title":"Effects of Colored Single Covered Yarn on Beautiful Leg in Pantyhose","authors":"Lina Wakako, M. Kamijo, Y. Matsumoto, H. Morooka","doi":"10.4188/TRANSJTMSJ.58.T128","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.58.T128","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114946325","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 : 2005-07-25DOI: 10.4188/TRANSJTMSJ.58.T83
Takanori Yamamoto, Katsuhiko Miyazaki, H. Ishizawa, Y. Matsumoto
In this paper, to design and develop a novel comfort towel, the relationship between the water absorbency and the comfort feeling in an actual using is investigated.On two bath towels with the different level of water absorbency, the skin temperature after bathing and drying the body under a constant condition is measured, and the sensory test for feelings of warm/cold, wet/dry, and comfort/discomfort is carried out at the same time. The results show that the skin temperature is greatly affected by the water absorbency of towel, and that in order to get the comfort feeling, it is important to maintain the skin temperature of about 31°C when using the high absorbent towel.Therefore, it is useful to measure and analyze the skin temperature for estimating the water absorbency and the comfort of towel.
{"title":"Estimation of Water Absorbency and Comfort of Towels on the Basis of Skin Temperature","authors":"Takanori Yamamoto, Katsuhiko Miyazaki, H. Ishizawa, Y. Matsumoto","doi":"10.4188/TRANSJTMSJ.58.T83","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.58.T83","url":null,"abstract":"In this paper, to design and develop a novel comfort towel, the relationship between the water absorbency and the comfort feeling in an actual using is investigated.On two bath towels with the different level of water absorbency, the skin temperature after bathing and drying the body under a constant condition is measured, and the sensory test for feelings of warm/cold, wet/dry, and comfort/discomfort is carried out at the same time. The results show that the skin temperature is greatly affected by the water absorbency of towel, and that in order to get the comfort feeling, it is important to maintain the skin temperature of about 31°C when using the high absorbent towel.Therefore, it is useful to measure and analyze the skin temperature for estimating the water absorbency and the comfort of towel.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123635572","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 : 2005-03-25DOI: 10.4188/TRANSJTMSJ.58.T29
K. Yasuda, N. Ohara, N. Mori, K. Chiba
The objective of this study is to well understand the migration and orientation of thin micro-particles in a suspension flow by means of both experiments and numerical simulations. In this framework, the evolution of the orientation of thin micro-particles such as talc and mica, which were modeled by a disk-like particle, in a flow through a slit channel was analyzed to obtain the knowledge of the processing operations of thin micro-particle reinforced composites.The thin disk-like particles were subjected by a planar extensional flow in a reservoir, then by a simple shear flow through a slit channel in the experimental apparatus used. The evolution of the orientation of thin disk-like particles was, therefore, studied in both a planar extensional and simple shear flows by numerical calculation of the Jeffery equation: thin disk-like particles aligned in a parallel orientation to upper- and lower-walls of the slit channel in a planar extensional flow through the reservoir, then entered into the inlet of the slit channel. On the other hand, in a simple shear flow through the slit channel, the disk-like particles kept this parallel orientation except the occurrence of a flip-over phenomenon. The period of the flip-over became longer with a decrease in the aspect ratio of the disk-like particles.Furthermore, the measurements of the orientation of the talc particles in a suspension flow through the slit channel clearly showed that almost the same period of the flip-over was found although the particle size was different. These experimental results arise from complex geometries and no accurate data of the thickness of the talc particles.
{"title":"Orientation of Disk-like Particles in a Microcomposite Processing","authors":"K. Yasuda, N. Ohara, N. Mori, K. Chiba","doi":"10.4188/TRANSJTMSJ.58.T29","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.58.T29","url":null,"abstract":"The objective of this study is to well understand the migration and orientation of thin micro-particles in a suspension flow by means of both experiments and numerical simulations. In this framework, the evolution of the orientation of thin micro-particles such as talc and mica, which were modeled by a disk-like particle, in a flow through a slit channel was analyzed to obtain the knowledge of the processing operations of thin micro-particle reinforced composites.The thin disk-like particles were subjected by a planar extensional flow in a reservoir, then by a simple shear flow through a slit channel in the experimental apparatus used. The evolution of the orientation of thin disk-like particles was, therefore, studied in both a planar extensional and simple shear flows by numerical calculation of the Jeffery equation: thin disk-like particles aligned in a parallel orientation to upper- and lower-walls of the slit channel in a planar extensional flow through the reservoir, then entered into the inlet of the slit channel. On the other hand, in a simple shear flow through the slit channel, the disk-like particles kept this parallel orientation except the occurrence of a flip-over phenomenon. The period of the flip-over became longer with a decrease in the aspect ratio of the disk-like particles.Furthermore, the measurements of the orientation of the talc particles in a suspension flow through the slit channel clearly showed that almost the same period of the flip-over was found although the particle size was different. These experimental results arise from complex geometries and no accurate data of the thickness of the talc particles.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129493758","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 : 2004-02-25DOI: 10.4188/TRANSJTMSJ.57.T13
Y. Uetsuji, T. Kurashiki, M. Zako
Fiber opening technology is expected to improve mechanical characteristics of woven fabric composites by high impregnation of matrix resin and reduction of undulation of yarns. In this paper, a three-dimensional finite element method based on damage mechanics has been applied to plain woven fabric composites, and the effect of fabric architecture of opened yarns on damage development under on-axis tensile load have been investigated numerically. Finite element models composed of weave yarns and matrix were employed, the flattening ratio between width and height of opened yarns were changed under the condition that volume fraction of fiber is constant. As a result, it has been recognized that plain woven fabric composites show different damage development in a mesoscopic scale according to geometric change of opened yarns. Overall tensile strength proved to be maximized by geometric design of opened yarns.
{"title":"Three-Dimensional Finite Element Analysis of Plain Woven Fabric Composites Based on Damage Mechanics : Effect of Geometric Change in Opened Yarns on Damage Development","authors":"Y. Uetsuji, T. Kurashiki, M. Zako","doi":"10.4188/TRANSJTMSJ.57.T13","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.57.T13","url":null,"abstract":"Fiber opening technology is expected to improve mechanical characteristics of woven fabric composites by high impregnation of matrix resin and reduction of undulation of yarns. In this paper, a three-dimensional finite element method based on damage mechanics has been applied to plain woven fabric composites, and the effect of fabric architecture of opened yarns on damage development under on-axis tensile load have been investigated numerically. Finite element models composed of weave yarns and matrix were employed, the flattening ratio between width and height of opened yarns were changed under the condition that volume fraction of fiber is constant. As a result, it has been recognized that plain woven fabric composites show different damage development in a mesoscopic scale according to geometric change of opened yarns. Overall tensile strength proved to be maximized by geometric design of opened yarns.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130541848","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 : 2003-12-25DOI: 10.4188/TRANSJTMSJ.56.12_T122
T. Nishimatsu, M. Kamijo, Y. Matsumoto, E. Toba, Kiyohiro Shibata
This paper describes the difference between the wrinkle after wearing and that after washing. The angular second moment, contrast, correlation and entropy as the textural feature parameters were extracted from the co-occurrence matrix for each gray level intensity of wrinkle image, and the fractal dimension was calculated. Results indicate that there is a good correlation between the texture profile parameters and the subjective assessment of wrinkling, and the profile of wrinkle after washing indicated more sharp and random than that after wearing.
{"title":"Difference between Wrinkle after Wearing and Wrinkle after Washing","authors":"T. Nishimatsu, M. Kamijo, Y. Matsumoto, E. Toba, Kiyohiro Shibata","doi":"10.4188/TRANSJTMSJ.56.12_T122","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.56.12_T122","url":null,"abstract":"This paper describes the difference between the wrinkle after wearing and that after washing. The angular second moment, contrast, correlation and entropy as the textural feature parameters were extracted from the co-occurrence matrix for each gray level intensity of wrinkle image, and the fractal dimension was calculated. Results indicate that there is a good correlation between the texture profile parameters and the subjective assessment of wrinkling, and the profile of wrinkle after washing indicated more sharp and random than that after wearing.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"526 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132689541","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 : 2003-12-25DOI: 10.4188/TRANSJTMSJ.56.12_T115
Takamoto Itoh, T. Yamada, Takuya Sasaki, Teruo Kimura, S. Katori
Concerning global environment protection and industrial waste disposal problem, biodegradable plastics are noticed. In the authors' previous paper, characteristics of the biodegradation and strength for the biodegradable plastic, Poly (butylen succinate) (PBS), and the PBS composite reinforced by cotton (PBS/CO) were examined.In this study, using a PBS composite material strengthened by silk fiber (PBS/SI), biodegradation and tensile tests were carried out as well as PBS/CO, and the properties of biodegradation and tensile strength for the PBS composites were examined. The mechanisms of the biodegradation and the property change in the tensile strength due to the biodegradation test were also discussed from the observation of surface and fracture surface of specimen after the biodegradation and tensile tests.Tensile strength in PBS/SI is much higher than that in PBS before the biodegradation test but decreases drastically after the biodegradation test. The reduction in strength attributes to the adhesion between fiber and matrix interface rather than the biodegradation.
{"title":"Degradation and Tensile Strength for Silk Fiber Reinforced Biodegradable Plastics","authors":"Takamoto Itoh, T. Yamada, Takuya Sasaki, Teruo Kimura, S. Katori","doi":"10.4188/TRANSJTMSJ.56.12_T115","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.56.12_T115","url":null,"abstract":"Concerning global environment protection and industrial waste disposal problem, biodegradable plastics are noticed. In the authors' previous paper, characteristics of the biodegradation and strength for the biodegradable plastic, Poly (butylen succinate) (PBS), and the PBS composite reinforced by cotton (PBS/CO) were examined.In this study, using a PBS composite material strengthened by silk fiber (PBS/SI), biodegradation and tensile tests were carried out as well as PBS/CO, and the properties of biodegradation and tensile strength for the PBS composites were examined. The mechanisms of the biodegradation and the property change in the tensile strength due to the biodegradation test were also discussed from the observation of surface and fracture surface of specimen after the biodegradation and tensile tests.Tensile strength in PBS/SI is much higher than that in PBS before the biodegradation test but decreases drastically after the biodegradation test. The reduction in strength attributes to the adhesion between fiber and matrix interface rather than the biodegradation.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115351307","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 : 2003-11-25DOI: 10.4188/TRANSJTMSJ.56.11_P464
豊和 夏原
{"title":"新タイプのガス吸着・金属防錆繊維「セルファイン」","authors":"豊和 夏原","doi":"10.4188/TRANSJTMSJ.56.11_P464","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.56.11_P464","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114919855","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 : 2003-11-25DOI: 10.4188/TRANSJTMSJ.56.11_T109
Kiyoshi Hatta, T. Kinari, Sukenori Shintaku
Air drag force on a nylon monofilament yarn in a confined jet was measured as a basic study for operating yarn by airflow, for example; for weft-insertion, for holding the yarn end, for adjusting yarn tension and for drawing yarn into a hollow spindle. The relative velocity of airflow around a yarn was expanded up to 300 m/s. Previously, this had been investigated up to 100 m/s. Both the supplying air pressure and combinations of nozzles and pipes changed diffusion of the flow in a pipe. Air drag force increased extremely if the primary stream acted on the yarn directly when the jet from the nozzle was directed at very high speed (around sonic velocity). Yarn was often stuck inside the pipe by the airflow when very thin pipes were used. When this occurred, air drag force was reduced to half. The air drag coefficient Cf for monofilament yarn has been arranged using the radius Reynolds number, Rea, for suction flow with lower than 100 m/s. The formula, Cf = KRea-n, has been applied for suction flow under 500 in Rea. Cf could be arranged in the same manner for annular jet or confined jet if airflow acted on a yarn in the pipe uniformly. This formula, then, is also available even for very high velocity over 100 m/s. According to these results, we were able to calculate air drag force on monofilament yam. We anticipate applying this to the other kinds of yarn, and expect air power savings and improvement in yarn operation.
{"title":"Air Drag of Monofilament Yarn in Confined Jet","authors":"Kiyoshi Hatta, T. Kinari, Sukenori Shintaku","doi":"10.4188/TRANSJTMSJ.56.11_T109","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.56.11_T109","url":null,"abstract":"Air drag force on a nylon monofilament yarn in a confined jet was measured as a basic study for operating yarn by airflow, for example; for weft-insertion, for holding the yarn end, for adjusting yarn tension and for drawing yarn into a hollow spindle. The relative velocity of airflow around a yarn was expanded up to 300 m/s. Previously, this had been investigated up to 100 m/s. Both the supplying air pressure and combinations of nozzles and pipes changed diffusion of the flow in a pipe. Air drag force increased extremely if the primary stream acted on the yarn directly when the jet from the nozzle was directed at very high speed (around sonic velocity). Yarn was often stuck inside the pipe by the airflow when very thin pipes were used. When this occurred, air drag force was reduced to half. The air drag coefficient Cf for monofilament yarn has been arranged using the radius Reynolds number, Rea, for suction flow with lower than 100 m/s. The formula, Cf = KRea-n, has been applied for suction flow under 500 in Rea. Cf could be arranged in the same manner for annular jet or confined jet if airflow acted on a yarn in the pipe uniformly. This formula, then, is also available even for very high velocity over 100 m/s. According to these results, we were able to calculate air drag force on monofilament yam. We anticipate applying this to the other kinds of yarn, and expect air power savings and improvement in yarn operation.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130579544","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 : 2003-11-01DOI: 10.4188/TRANSJTMSJ.56.11_P468
岡崎 統
{"title":"東レ : 新タイプ保温素材PPS繊維「トルコン」の衣料用への展開","authors":"岡崎 統","doi":"10.4188/TRANSJTMSJ.56.11_P468","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.56.11_P468","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132662285","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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