Pub Date : 2001-12-25DOI: 10.4188/TRANSJTMSJ.54.12_499
Haruya Hiramatsuh
{"title":"Present States of Development and Application of 3 Dimension Wearable Simulation System","authors":"Haruya Hiramatsuh","doi":"10.4188/TRANSJTMSJ.54.12_499","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.12_499","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124405381","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 : 2001-12-01DOI: 10.4188/TRANSJTMSJ.54.12_T180
M. Michalak
The paper presents a fragment of a research project aimed at defining the dynamics and tribology of the real twisting system of a ring spinning frame, i.e. a system with regular and/or random occurrence of faults in its operation. The object of study are the dynamic disturbances and their tribological consequences, which occur in the operation of the twisting system of a worsted spinning ring-frame due to faulty rotation of the spindle caused by play in its bearing. Studied was a twisting system provided with a taper ring (HZ) and T steel traveller. The forces were determined, for a case of three-contact inter-action between the traveller and ring, which act on the traveller and yarn if the spindle axis deviates from the vertical so that its tip traces an ellipse or a circle. It is shown that this faulty operation of the twisting system has a destructive effect on the inter-action of the traveller-ring-yarn (TRY) trio, which aggravates with time and has a deteriorating effect on the performance of the system
{"title":"Tribological Aspect of Dynamic Deviations in Ring-Frame Twisting System due to Dynamic Malalignment of Spindle","authors":"M. Michalak","doi":"10.4188/TRANSJTMSJ.54.12_T180","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.12_T180","url":null,"abstract":"The paper presents a fragment of a research project aimed at defining the dynamics and tribology of the real twisting system of a ring spinning frame, i.e. a system with regular and/or random occurrence of faults in its operation. The object of study are the dynamic disturbances and their tribological consequences, which occur in the operation of the twisting system of a worsted spinning ring-frame due to faulty rotation of the spindle caused by play in its bearing. Studied was a twisting system provided with a taper ring (HZ) and T steel traveller. The forces were determined, for a case of three-contact inter-action between the traveller and ring, which act on the traveller and yarn if the spindle axis deviates from the vertical so that its tip traces an ellipse or a circle. It is shown that this faulty operation of the twisting system has a destructive effect on the inter-action of the traveller-ring-yarn (TRY) trio, which aggravates with time and has a deteriorating effect on the performance of the system","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116034041","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 : 2001-11-25DOI: 10.4188/TRANSJTMSJ.54.11_T174
敏壮 楊, 光男 松平
Swinging track, velocity, and acceleration of a fabric at a turn-round motion were studied precisely with a dynamic drape tester made in trial using moving image processing system. Following conclusions were obtained. (1) Dynamic drape behavior of fabric is explained by some parameters measured by the moving image processing system. (2) These parameters have different information from conventional static drape coefficient, revolving drape increase coefficient, revolving drape coefficient at 200rpm, and dynamic drape coefficient at swinging motion, and have high correlation with fabric bending and shearing vibrational properties. (3) These parameters have strong correlation with subjective value about beautifulness of dynamic drape behaviors of fabrics.
{"title":"Relationship between Visual Judgement and Dynamic Drape Behavior of Fabrics","authors":"敏壮 楊, 光男 松平","doi":"10.4188/TRANSJTMSJ.54.11_T174","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.11_T174","url":null,"abstract":"Swinging track, velocity, and acceleration of a fabric at a turn-round motion were studied precisely with a dynamic drape tester made in trial using moving image processing system. Following conclusions were obtained. (1) Dynamic drape behavior of fabric is explained by some parameters measured by the moving image processing system. (2) These parameters have different information from conventional static drape coefficient, revolving drape increase coefficient, revolving drape coefficient at 200rpm, and dynamic drape coefficient at swinging motion, and have high correlation with fabric bending and shearing vibrational properties. (3) These parameters have strong correlation with subjective value about beautifulness of dynamic drape behaviors of fabrics.","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":"2001-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116396359","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 : 2001-11-25DOI: 10.4188/TRANSJTMSJ.54.11_445
K. Kazama
{"title":"Comparison of Wash with Water and without Water","authors":"K. Kazama","doi":"10.4188/TRANSJTMSJ.54.11_445","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.11_445","url":null,"abstract":"","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":"2001-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130877151","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 : 2001-11-25DOI: 10.4188/TRANSJTMSJ.54.11_T165
M. Mitsuhashi, K. Nishimura, Takehiro Yamamoto, N. Mori, K. Nakamura
Weld-lines degrade the mechanical and optical properties of products. This is because the polymer molecules near the weld-line highly orient owing to the elongational flow and the molecular orientation is fixed by solidification of the polymer melts before it returns to a random condition. Birefringence experiments were carried out for welding flows of a low density polyethylene (LDPE) past a spider supporting a mandrel. The die used in the present study has a spider with a glass window. The birefringence in the polymer melts was measured by the photoelastic method. The purpose of the present study is to elucidate the effect of the die temperature, spider shapes and a viscoelastic property of polymer melts on the anisotropy of the molecular orientation in the stress relaxation process downstream of the spider. The birefringence pattern in the welding flow of LDPE was measured at the die temperature Td=190, 205°C and the polymer melts temperature Tp=190°C for flow rates of 0.7, 1.0, 2.2, 2.9, 4.6 cm3/s. The results showed complete relaxation of birefringence depended on the flow rate. In case that the die temperature was high (205°C), the distance necessary for the relaxation of molecular orientation was short. Moreover, the welding flow was numerically calculated using the single-mode Giesekus model as a constitutive equation, and the results were compared with the experimental data. The numerical predictions agreed with the experimental results.
{"title":"Welding Flow of Low Density Polyethylene Melt","authors":"M. Mitsuhashi, K. Nishimura, Takehiro Yamamoto, N. Mori, K. Nakamura","doi":"10.4188/TRANSJTMSJ.54.11_T165","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.11_T165","url":null,"abstract":"Weld-lines degrade the mechanical and optical properties of products. This is because the polymer molecules near the weld-line highly orient owing to the elongational flow and the molecular orientation is fixed by solidification of the polymer melts before it returns to a random condition. Birefringence experiments were carried out for welding flows of a low density polyethylene (LDPE) past a spider supporting a mandrel. The die used in the present study has a spider with a glass window. The birefringence in the polymer melts was measured by the photoelastic method. The purpose of the present study is to elucidate the effect of the die temperature, spider shapes and a viscoelastic property of polymer melts on the anisotropy of the molecular orientation in the stress relaxation process downstream of the spider. The birefringence pattern in the welding flow of LDPE was measured at the die temperature Td=190, 205°C and the polymer melts temperature Tp=190°C for flow rates of 0.7, 1.0, 2.2, 2.9, 4.6 cm3/s. The results showed complete relaxation of birefringence depended on the flow rate. In case that the die temperature was high (205°C), the distance necessary for the relaxation of molecular orientation was short. Moreover, the welding flow was numerically calculated using the single-mode Giesekus model as a constitutive equation, and the results were compared with the experimental data. The numerical predictions agreed with the experimental results.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128117223","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 : 2001-10-25DOI: 10.4188/TRANSJTMSJ.54.10_T159
T. Kinari
The noise in weaving mills has been very large according to increasing speed on the jet loom. The main source of this noise is healds vibration generated in the shedding motion of the loom. It is desired to reduce the heald vibration, in view of both the labor conditions and the quality of produced fabrics. In this report, heald frames equipped with bar magnets are constructed on trial in order to reduce the heald vibration. The noise level are measured, and the heald motion is also observed at the same time by means of a high speed video-camera system. It is found that the disorder of the heald motion during shedding motion decreased by equipment of bar magnets with the heald frames. Then, the sound heard by the human ears seems reduced, but there is no significant difference in the noise level measured by the noise-level meter.
{"title":"Reduction in Heald Vibration by Magnetic Insertion","authors":"T. Kinari","doi":"10.4188/TRANSJTMSJ.54.10_T159","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.10_T159","url":null,"abstract":"The noise in weaving mills has been very large according to increasing speed on the jet loom. The main source of this noise is healds vibration generated in the shedding motion of the loom. It is desired to reduce the heald vibration, in view of both the labor conditions and the quality of produced fabrics. In this report, heald frames equipped with bar magnets are constructed on trial in order to reduce the heald vibration. The noise level are measured, and the heald motion is also observed at the same time by means of a high speed video-camera system. It is found that the disorder of the heald motion during shedding motion decreased by equipment of bar magnets with the heald frames. Then, the sound heard by the human ears seems reduced, but there is no significant difference in the noise level measured by the noise-level meter.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122038522","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 : 2001-10-25DOI: 10.4188/TRANSJTMSJ.54.10_T143
Keiko Isoi, K. Kazama
The purpose of this study is to examine what characterizes certain evaluations from observers who estimate“clothes becoming to each wearer”that depend on the shape of the graph of frequency distribution of the evaluated values.The characteristic means the ability that the difference among clothes becoming to each wearer about their evaluations is able to detect in.36 models were worn in 20 sets of clothes, and the evaluation samples were made from each combimnation.56 observers estimated“clothes becoming to the wearer”in degrees of 1to 7 for every samples.The similar shapes of frequency distribution maps were integrated.They were classified in to four types;“bell”, “flat”, “M”and“No peak”.As for the power of detection, four decision standards were defined from tne structure of the difference in evaluation.And the test of the ratio was done in every decision standard.As a result, “No peak”type showed the highest detection power.The second was“flat”type.The third was“M”type.The fourth was“bell”type.This led to the next discovery.A difference in the distribution form shows a difference in structure of the“becoming”evaluation.The power of detection can be judged by the characteristics of the structure.About“becoming”, the mean of the observers isn't used, but it must think by four distribution types.
{"title":"Evaluation Characteristics for Estimation of Clothes Becoming","authors":"Keiko Isoi, K. Kazama","doi":"10.4188/TRANSJTMSJ.54.10_T143","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.10_T143","url":null,"abstract":"The purpose of this study is to examine what characterizes certain evaluations from observers who estimate“clothes becoming to each wearer”that depend on the shape of the graph of frequency distribution of the evaluated values.The characteristic means the ability that the difference among clothes becoming to each wearer about their evaluations is able to detect in.36 models were worn in 20 sets of clothes, and the evaluation samples were made from each combimnation.56 observers estimated“clothes becoming to the wearer”in degrees of 1to 7 for every samples.The similar shapes of frequency distribution maps were integrated.They were classified in to four types;“bell”, “flat”, “M”and“No peak”.As for the power of detection, four decision standards were defined from tne structure of the difference in evaluation.And the test of the ratio was done in every decision standard.As a result, “No peak”type showed the highest detection power.The second was“flat”type.The third was“M”type.The fourth was“bell”type.This led to the next discovery.A difference in the distribution form shows a difference in structure of the“becoming”evaluation.The power of detection can be judged by the characteristics of the structure.About“becoming”, the mean of the observers isn't used, but it must think by four distribution types.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129922103","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 : 2001-10-25DOI: 10.4188/TRANSJTMSJ.54.10_420
R. Gong, R. A. Jhatial
This paper reports the results of an in-depth investigation into why the measuredtwist of rotor-spun yarns is dependent on the spinning process parameters, especially fibre properties.The investigation focuses on the study of yarn structure using a visual measurement method in conjunction with the use of tracer fibres.The measurement system is based on computer analysis of digitised video images of the yarn.The system can reveal the twist level within different radial layers of the yam.The results show that rotor-spun yarn structures are affected by fibre properties and the difference in yarn structure is the main cause for the apparent twist difference reported previously.
{"title":"The Structure of Rotor-Spun Yarns","authors":"R. Gong, R. A. Jhatial","doi":"10.4188/TRANSJTMSJ.54.10_420","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.10_420","url":null,"abstract":"This paper reports the results of an in-depth investigation into why the measuredtwist of rotor-spun yarns is dependent on the spinning process parameters, especially fibre properties.The investigation focuses on the study of yarn structure using a visual measurement method in conjunction with the use of tracer fibres.The measurement system is based on computer analysis of digitised video images of the yarn.The system can reveal the twist level within different radial layers of the yam.The results show that rotor-spun yarn structures are affected by fibre properties and the difference in yarn structure is the main cause for the apparent twist difference reported previously.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127597213","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 : 2001-10-25DOI: 10.4188/TRANSJTMSJ.54.10_394
T. Furusawa
{"title":"Biological Science in Space Spinning Behavior of the Silkworm","authors":"T. Furusawa","doi":"10.4188/TRANSJTMSJ.54.10_394","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.10_394","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132849143","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 : 2001-10-25DOI: 10.4188/TRANSJTMSJ.54.10_408
M. Takaoki
{"title":"Life Science Research in Space","authors":"M. Takaoki","doi":"10.4188/TRANSJTMSJ.54.10_408","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.10_408","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123215876","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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