{"title":"纱线捻制形式第一部分:理想的圆柱形和带状捻制形式","authors":"J. Hearle, O. N. Bose","doi":"10.1080/19447026608662371","DOIUrl":null,"url":null,"abstract":"Yarns may twist either as cylindrical bundles of fibres or as flattened ribbons: the former mode has been the basis of most scientific studies. The present paper describes the behaviour of a rubber strip as a model of a yarn ribbon. On twisting the strip, the twisted form that appears initially Is subsequently replaced by a wrapped-ribbon form. The energy relations causing this are discussed, and the theoretical prediction is compared with experimental results. The geometry of the wrapped-ribbon form is analysed, and its consequences oti the expected form of yarns are considered. A wrapped-ribbon yarn may degenerate by collapse into a cylinder, but the relics of the ribbon-twisting are apparent in asymmetry and in a redistribution of the fibres in the yarn.","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"18 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"17","resultStr":"{\"title\":\"25—THE FORM OF YARN TWISTING PART I: IDEAL CYLINDRICAL AND RIBBON-TWISTED FORMS\",\"authors\":\"J. Hearle, O. N. Bose\",\"doi\":\"10.1080/19447026608662371\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Yarns may twist either as cylindrical bundles of fibres or as flattened ribbons: the former mode has been the basis of most scientific studies. The present paper describes the behaviour of a rubber strip as a model of a yarn ribbon. On twisting the strip, the twisted form that appears initially Is subsequently replaced by a wrapped-ribbon form. The energy relations causing this are discussed, and the theoretical prediction is compared with experimental results. The geometry of the wrapped-ribbon form is analysed, and its consequences oti the expected form of yarns are considered. A wrapped-ribbon yarn may degenerate by collapse into a cylinder, but the relics of the ribbon-twisting are apparent in asymmetry and in a redistribution of the fibres in the yarn.\",\"PeriodicalId\":17650,\"journal\":{\"name\":\"Journal of The Textile Institute Transactions\",\"volume\":\"18 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1966-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"17\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Textile Institute Transactions\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1080/19447026608662371\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Textile Institute Transactions","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/19447026608662371","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
25—THE FORM OF YARN TWISTING PART I: IDEAL CYLINDRICAL AND RIBBON-TWISTED FORMS
Yarns may twist either as cylindrical bundles of fibres or as flattened ribbons: the former mode has been the basis of most scientific studies. The present paper describes the behaviour of a rubber strip as a model of a yarn ribbon. On twisting the strip, the twisted form that appears initially Is subsequently replaced by a wrapped-ribbon form. The energy relations causing this are discussed, and the theoretical prediction is compared with experimental results. The geometry of the wrapped-ribbon form is analysed, and its consequences oti the expected form of yarns are considered. A wrapped-ribbon yarn may degenerate by collapse into a cylinder, but the relics of the ribbon-twisting are apparent in asymmetry and in a redistribution of the fibres in the yarn.
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