{"title":"Model for the Optimal Control of the Cross-Lapper Drive","authors":"J. Stadnicki","doi":"10.4188/JTE1955.44.69","DOIUrl":"https://doi.org/10.4188/JTE1955.44.69","url":null,"abstract":"This paper presents the mathematical model of a cross-lapper elaborated to satisfy the needs of computer simulation of its motion. An algorithm for calculating the optimal driving moment profile to provide motion according to the given functions of velocity and acceleration has been described. Some results of the calculations are shown on graphs.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"30 1","pages":"69-73"},"PeriodicalIF":0.0,"publicationDate":"1998-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83363187","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}
Ken'ichi Ohta, Mitsuya Saeki, Chikako Yamada, T. Nishimatsu
{"title":"Evaluation of Visual Features of Textile Designs Using Genetic Algorithm","authors":"Ken'ichi Ohta, Mitsuya Saeki, Chikako Yamada, T. Nishimatsu","doi":"10.4188/JTE1955.44.78","DOIUrl":"https://doi.org/10.4188/JTE1955.44.78","url":null,"abstract":"Designs that have been stored in early days are often used as a reference when textile designs are created. To effectively use these resources, an well-organized design database must be constructed and a useful searching method must be studied. As to design searching method, searching methods that deal with human subjective information is requested. As a technique for these searching methods, one method to characterize visual feature of textile designs is proposed. In this study, a correspondence was examined between the subjectivity like \"strong impact\" for textile designs and spatial frequencies that are objective visual features for them. In this examination, genetic algorithm was introduced in order to increase the efficiency of processing time. It was presumed that the subjective impressions of \"strong impact\" were related to lower components of spatial frequencies of textile design images. In this result, the textile designs that impress human when human compare designs are similar to the textile designs that are made up of lower spatial frequency components. As to design searches from subjective impressions of \"strong impact,\" lower spatial frequency components that are objective visual features are available for one of subjective searching item.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"14 1","pages":"78-81"},"PeriodicalIF":0.0,"publicationDate":"1998-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87685531","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}
{"title":"Effect of Laundering on Bending Properties of Plain-Knitted Fabrics","authors":"Leticia Quaynor, Masaoki Takahashi, M. Nakajima","doi":"10.4188/JTE1955.44.74","DOIUrl":"https://doi.org/10.4188/JTE1955.44.74","url":null,"abstract":"This work investigates thechanges inbending properties in laundering of plain weft-knit s lk fabrics, as compared with cotton and polyester. The effects of variations of linear density and stitch density of fabric samples on bending properties due to repeated laundering areexamined. It is shown that both bending rigidity and hysteresis of the various yarns how different behaviour of the fibres in laundering. Silk is characterized by higher flexibility for bending inboth principal directions than cotton and polyester, in laundering. Differences between technical f ce and technical back bending are also shown. Linear density of silk yarns affects bending rigidity more than cotton.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"1 1","pages":"74-77"},"PeriodicalIF":0.0,"publicationDate":"1998-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84354709","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}
T. Ogihara, N. Ogata, Sakamoto Yoshiaki, Nagata Norifumi, Yuko Sigekura
{"title":"Ceramic Coating on the Glass Fiber by Sol-Gel Method","authors":"T. Ogihara, N. Ogata, Sakamoto Yoshiaki, Nagata Norifumi, Yuko Sigekura","doi":"10.4188/TRANSJTMSJ.51.10_T199","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.51.10_T199","url":null,"abstract":"Alumina ceramics precursor was coated on the glass fibers by sol-gel method using metal alkoxide solution. The optimum coating condition for the concentration of metal alkoxide and silane coupling agent make it possible to uniformly coat alumina precursor film on the glass fiber. The organic contents in alumina precursor on the glass fiber increased with the concentration of metal alkoxide. The addition of silane coupling agent led adhesive force between glass fiber and ceramics precursor films to be higher. The alkali-resistance, heat resistance and tensile strength of ceramics precursor coating glass fibers were superior to original glass fiber. The surface of glass fiber was eroded by curing in NaOH aqueous solution at 40°C. However, the morphology of fiber coated by alumina precursor was retained in NaOH aqueous solution. The crack on the surface of glass fiber was formed by heating at 800°C, but, the crack was not observed in the glass fiber coated by alumina precursor. The tensile strength of glass fiber and alumina precursor coating fiber was 60×103and80×103kgf/cm2, respectively. The tensile stren of glass fiber and alumina precursor coating fiber increased with the concentration of silane coupling agent.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"36 1","pages":"113-118"},"PeriodicalIF":0.0,"publicationDate":"1998-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75016099","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}
Ken'ichi Ohta, Mitsuya Saeki, Chikako Yamada, T. Nishimatsu
{"title":"Visual Features of Textile Designs Using Fractal Dimension","authors":"Ken'ichi Ohta, Mitsuya Saeki, Chikako Yamada, T. Nishimatsu","doi":"10.4188/JTE1955.44.50","DOIUrl":"https://doi.org/10.4188/JTE1955.44.50","url":null,"abstract":"This study is concerned with Fractal dimensions as visual features of textile designs. Fractal dimensions are a one of the scale of measuring the shapes. This study investigated a correspondence between the subjective evaluation of visual features using subjective impressions of “strong impact” and the objective evaluation obtained as Fractal dimensions of textile design images. In the results, it is shown that the subjective evaluation based on the subjective impressions of “strong impact” is related with Fractal dimensions of textile design images. So, we propose that Fractal dimensions are able to use for one of the items at the design searching on subjectively.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"42 1","pages":"50-56"},"PeriodicalIF":0.0,"publicationDate":"1998-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81128523","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}
{"title":"Fiber & Filament Making","authors":"A. Kubota","doi":"10.4188/JTE1955.44.26","DOIUrl":"https://doi.org/10.4188/JTE1955.44.26","url":null,"abstract":"production models, the machine makers tended to exhibit equipment aiming to make high-value added yarns instead of regular yarns. To improve the efficiency of corporate plant and equipment investment, some machinery exhibits offer labor, energy and space saving as well as practical computerized production control. They were an attention Better. Now a variety of machinery exhibits are outlined below.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"15 1","pages":"26-30"},"PeriodicalIF":0.0,"publicationDate":"1998-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77665475","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}
{"title":"Mechanism of End Breakage due to Knots in Weft Knitting Zone Part 1 : End Breakage in Plain-weft Knitting Zone","authors":"Ryuzo Oinuma, Shinji Nishimura, Tony Madeley","doi":"10.4188/TRANSJTMSJ.48.7_T173","DOIUrl":"https://doi.org/10.4188/TRANSJTMSJ.48.7_T173","url":null,"abstract":"The mechanism of the end breakage due to knots (a weaver's knot and a fisherman's knot using a combed cotton yarn c30s/1 cotton count) in the plain-weft knitting zone is investigated in detail, using a high speed video camera.The results obtained are as follows: (1) It clarifies that the end breakage due to knots in the plain-weft knitting zone occurs in the following three steps:1) jam of knots in the space between a needle-hook and -latch and an old loop, or in the space between a needle-head and a verge, 2) increase in the yarn tension, 3) end breakage due to knots. (2) The end breakage due to an air-splice in the plain-weft knitting zone hardly occurs under every knitting condition. (3) The rate of jammed knots, the end breakage rate for jammed knots and that for knots increase with the increase of the depth of stitch draw, the input tension and the take-down weight for any knot. (4) The rate of jammed knots, the end breakage rate for jammed knots and that for knots due to a fisherman's knot are always more than those due to a weaver's knot under every knitting condition.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"60 1","pages":"13-19"},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83961018","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}
{"title":"Flow Simulation of Fiber Suspensions in Polymeric Fluid through Abrupt Contraction","authors":"K. Yasuda, T. Nishimura, K. Nakamura","doi":"10.4188/JTE1955.43.90","DOIUrl":"https://doi.org/10.4188/JTE1955.43.90","url":null,"abstract":"The flow pattern and the orientation of fiber suspensions in polymeric fluids through a two-dimensional abrupt contraction are calculated using the Giesekus model and the Dinh-Armstrong model. The flow pattern of fiber suspensions in polymeric fluids is different from that of polymeric fluid; a vortex near the salient corner in the suspension flow becomes larger than that in the polymeric fluid flow. The dependence of the vortex length on a mobility parameter α in the Giesekus model and on a characteristic parameter of fiber suspension in the Dinh-Armstrong model is discussed.","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"88 1","pages":"90-96"},"PeriodicalIF":0.0,"publicationDate":"1997-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91169234","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}
{"title":"Needle Deflection and Sewability on Lockstitch Sewing Machine","authors":"Michikazu Tanaka, Kuniko Yasumori, Yoshinobu Kamata","doi":"10.4188/JTE1955.43.71","DOIUrl":"https://doi.org/10.4188/JTE1955.43.71","url":null,"abstract":"It is established that in sewing operation, a needle could be deflected by factor such as sewn fabric structure. Empirically, however, this deflection is considered to be closely related to sewability, but without defining the proper correlation they may have. A series of studies are, therefore, undertaken to find out the correlation between sewabiliity and needle deflection in sewing operation. The present paper is aimed at a proposed method for evaluating the needle deflection. In the method, the deflect-ing force is measured by two gauges attached to the lateral surfaces of a needle shank, and then the deflection is estimated by using a simple needle model. Some model studies are carried out on synthetic paper and cotton fabrics, and their results are presented,","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"16 1","pages":"71-78"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82485393","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}
Ryuji Shintani, Ikuei Donjou, K. Chikaoka, A. Okajima
{"title":"Air Stream ejected from Sub-nozzles of Air Jet Loom","authors":"Ryuji Shintani, Ikuei Donjou, K. Chikaoka, A. Okajima","doi":"10.4188/JTE1955.42.80","DOIUrl":"https://doi.org/10.4188/JTE1955.42.80","url":null,"abstract":"","PeriodicalId":17585,"journal":{"name":"Journal of the Textile Machinery Society of Japan","volume":"19 1","pages":"80-85"},"PeriodicalIF":0.0,"publicationDate":"1996-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82505410","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}