Pub Date : 2002-11-25DOI: 10.4188/TRANSJTMSJ.55.11_P416
K. Kawabe
{"title":"Spreading Tecnology for Reinforcing Fiber Tows and New Composite Materials by Spread Tow","authors":"K. Kawabe","doi":"10.4188/TRANSJTMSJ.55.11_P416","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.11_P416","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129782575","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 : 2002-11-25DOI: 10.4188/TRANSJTMSJ.55.11_T95
K. Ando, K. Sugano, Yoshiharu Okumura
High performance electret filter media are bonded a few laminated electret nonwoven fabrics by the supersonic bonding machine.At that time, pinholes are occured, the filtering efficiency goes down. On account of detecting the pinholes, we are discussed the measuring method used CCD camera catching light penetrated through pinholes of the sample. It is important to improve the SN ratio of luminosity between pinholes and others. It was shown signs of improvement by discussed with the distance between light source and sample, slit clearance of light, and setting of polarized light film.
{"title":"Pinhole Detection Method of an Electret Filtering Media with High Performance","authors":"K. Ando, K. Sugano, Yoshiharu Okumura","doi":"10.4188/TRANSJTMSJ.55.11_T95","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.11_T95","url":null,"abstract":"High performance electret filter media are bonded a few laminated electret nonwoven fabrics by the supersonic bonding machine.At that time, pinholes are occured, the filtering efficiency goes down. On account of detecting the pinholes, we are discussed the measuring method used CCD camera catching light penetrated through pinholes of the sample. It is important to improve the SN ratio of luminosity between pinholes and others. It was shown signs of improvement by discussed with the distance between light source and sample, slit clearance of light, and setting of polarized light film.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125209172","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 : 2002-10-25DOI: 10.4188/TRANSJTMSJ.55.10_T89
M. Zako, Tomomasa Fujita
Several papers about fiber reinforced rubber have been described by some researchers. However, many of them were about tires or unidirectional fiber reinforced rubber. There are a few researchers who made some theoretical analyses about woven fabric reinforced rubber. In addition, there are few studies about the experiments and the numerical analyses. It is very difficult for woven fabric reinforced rubbers to analyze the mechanical behaviors, because these materials show an anisotropic property and large deformation under tensile load. The fabric reinforced rubbers used for diaphragms and bellows are very soft and flexible, so that the crossing angle of the warp yams and the weft yarns is easy to change when the tensile load in the bias direction is applied. Therefore, it is needed to take the change of crossing angle to simulate the mechanical behaviors under loading condition into consideration. In this paper, we have proposed an evaluation method of mechanical properties of woven fabric reinforced rubber based on the above consideration.
{"title":"Evaluation Method of Mechanical Properties of Plain-weave Fabric Reinforced Rubber.","authors":"M. Zako, Tomomasa Fujita","doi":"10.4188/TRANSJTMSJ.55.10_T89","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.10_T89","url":null,"abstract":"Several papers about fiber reinforced rubber have been described by some researchers. However, many of them were about tires or unidirectional fiber reinforced rubber. There are a few researchers who made some theoretical analyses about woven fabric reinforced rubber. In addition, there are few studies about the experiments and the numerical analyses. It is very difficult for woven fabric reinforced rubbers to analyze the mechanical behaviors, because these materials show an anisotropic property and large deformation under tensile load. The fabric reinforced rubbers used for diaphragms and bellows are very soft and flexible, so that the crossing angle of the warp yams and the weft yarns is easy to change when the tensile load in the bias direction is applied. Therefore, it is needed to take the change of crossing angle to simulate the mechanical behaviors under loading condition into consideration. In this paper, we have proposed an evaluation method of mechanical properties of woven fabric reinforced rubber based on the above consideration.","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127693993","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 : 2002-10-25DOI: 10.4188/TRANSJTMSJ.55.10_P389
K. Sugai
{"title":"On Manufacturing Architectural Heat Insulating Materials from Fiber Waste","authors":"K. Sugai","doi":"10.4188/TRANSJTMSJ.55.10_P389","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.10_P389","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132180052","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 : 2002-09-25DOI: 10.4188/TRANSJTMSJ.55.9_P337
志保 尾崎
{"title":"酵素(BAYLASE RP〔バイラーゼ〕RP)利用による反応性染料染色物の洗浄","authors":"志保 尾崎","doi":"10.4188/TRANSJTMSJ.55.9_P337","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.9_P337","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115081450","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 : 2002-09-25DOI: 10.4188/TRANSJTMSJ.55.9_P335
Shingo Maeda, Katsushi Kunitou, Setsuaki Hongyou, K. Mishima
{"title":"Dyeing of Fibers in Supercritical Carbon Dioxide","authors":"Shingo Maeda, Katsushi Kunitou, Setsuaki Hongyou, K. Mishima","doi":"10.4188/TRANSJTMSJ.55.9_P335","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.9_P335","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124359732","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 : 2002-09-25DOI: 10.4188/TRANSJTMSJ.55.9_P347
神山 統光, 宮坂 信義, 水村 知雄
{"title":"快適感性素材「コルティコ」の開発","authors":"神山 統光, 宮坂 信義, 水村 知雄","doi":"10.4188/TRANSJTMSJ.55.9_P347","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.9_P347","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134332870","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 : 2002-09-01DOI: 10.4188/TRANSJTMSJ.54.10_T149
M. Mitsuhashi, K. Nishimura, K. Nomura, Takehiro Yamamoto, N. Mori, K. Nakamura
In the polymer processing operations of extrusion and blow molding, weld-lines often occur on the product, especially on the parison made by extruding polymer melts.This is because the polymer molecules near the weld-line highly orient owing to the elongational flow and the molecular orientation does not relax.In the present paper, the nonisothermal viscoelastic welding flow in the channel with a spider that supports a mandrel was numerically calculated for analyzing the molecular orientation in the weld-line region.The single-mode Giesekus model was used as a constitutive equation.The effect of the temperature on the velocity, the stress and the molecular orientation in the stress relaxation process at the weld-line was analyzed.The calculations were carried out for the channel wall temperatures Tw=190, 195, 200, and 205°C at the inlet temperature T1=190°CThe numerical results showed that the overshoot of the velocity along the centerline downstream of the spider was large when the channel wall temperature was high.For a fluid with remarkable shear-thinning property, the spider with a large rear-end-angle suppressed the overshoot in the case of Tw=205°C When the wall temperature was high, the distance necessary for relaxation of molecular orientation were short, thus little anisotropy remained in the weld region after solidification.
{"title":"Numerical Analysis of Viscoelastic Welding Flow. Part 2. Effect of Temperature on Molecular Orientation.","authors":"M. Mitsuhashi, K. Nishimura, K. Nomura, Takehiro Yamamoto, N. Mori, K. Nakamura","doi":"10.4188/TRANSJTMSJ.54.10_T149","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.54.10_T149","url":null,"abstract":"In the polymer processing operations of extrusion and blow molding, weld-lines often occur on the product, especially on the parison made by extruding polymer melts.This is because the polymer molecules near the weld-line highly orient owing to the elongational flow and the molecular orientation does not relax.In the present paper, the nonisothermal viscoelastic welding flow in the channel with a spider that supports a mandrel was numerically calculated for analyzing the molecular orientation in the weld-line region.The single-mode Giesekus model was used as a constitutive equation.The effect of the temperature on the velocity, the stress and the molecular orientation in the stress relaxation process at the weld-line was analyzed.The calculations were carried out for the channel wall temperatures Tw=190, 195, 200, and 205°C at the inlet temperature T1=190°CThe numerical results showed that the overshoot of the velocity along the centerline downstream of the spider was large when the channel wall temperature was high.For a fluid with remarkable shear-thinning property, the spider with a large rear-end-angle suppressed the overshoot in the case of Tw=205°C When the wall temperature was high, the distance necessary for relaxation of molecular orientation were short, thus little anisotropy remained in the weld region after solidification.","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":"2002-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116840224","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 : 2002-08-25DOI: 10.4188/TRANSJTMSJ.55.8_P323
Seizo Sato
{"title":"The Change & Future of Knitting Technique","authors":"Seizo Sato","doi":"10.4188/TRANSJTMSJ.55.8_P323","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.8_P323","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114110670","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 : 2002-08-25DOI: 10.4188/TRANSJTMSJ.55.8_P307
H. Itagaki
{"title":"Past and Future of Japanese Synthetic Fiber Industry","authors":"H. Itagaki","doi":"10.4188/TRANSJTMSJ.55.8_P307","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.55.8_P307","url":null,"abstract":"","PeriodicalId":339262,"journal":{"name":"Sen'i Kikai Gakkaishi (journal of The Textile Machinery Society of Japan)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124580325","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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