Pub Date : 1966-10-01DOI: 10.1080/19447026608662390
J. Hearle
A theoretical analysis of the mechanics of formation of a snarl in a twisted filament is given and leads to prediction of the tension-contraction relation. This is then applied to multifilament yarns analogous to torque-stretch yarns. The behaviour of real yarns is discussed, and results are compared with the predictions.
{"title":"34—STRUCTURAL MECHANICS OF TORQUE-STRETCH YARNS: THE MECHANISM OF SNARL FORMATION","authors":"J. Hearle","doi":"10.1080/19447026608662390","DOIUrl":"https://doi.org/10.1080/19447026608662390","url":null,"abstract":"A theoretical analysis of the mechanics of formation of a snarl in a twisted filament is given and leads to prediction of the tension-contraction relation. This is then applied to multifilament yarns analogous to torque-stretch yarns. The behaviour of real yarns is discussed, and results are compared with the predictions.","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83253501","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 : 1966-10-01DOI: 10.1080/19447026608662392
P. Neelakantan, K. Iyer, T. Radhakrishnan
{"title":"An Improved Fibre Refractometer","authors":"P. Neelakantan, K. Iyer, T. Radhakrishnan","doi":"10.1080/19447026608662392","DOIUrl":"https://doi.org/10.1080/19447026608662392","url":null,"abstract":"","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87620326","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 : 1966-10-01DOI: 10.1080/19447026608662391
A. Barella
A comprehensive survey of the literature on the hairiness of yarns is presented. The techniques used in the measurement of hairiness are classified and discussed in detail. The parameters used to express hairiness and to derive the theory of hairiness are considered. The effects on hairiness are discussed of fibre and yarn characteristics, different spinning processes, and processes subsequent to spinning (winding, singeing, bleaching, dyeing, and sizing).
{"title":"35—THE HAIRINESS OF YARNS: A REVIEW OF THE LITERATURE AND A SURVEY OF THE PRESENT POSITION","authors":"A. Barella","doi":"10.1080/19447026608662391","DOIUrl":"https://doi.org/10.1080/19447026608662391","url":null,"abstract":"A comprehensive survey of the literature on the hairiness of yarns is presented. The techniques used in the measurement of hairiness are classified and discussed in detail. The parameters used to express hairiness and to derive the theory of hairiness are considered. The effects on hairiness are discussed of fibre and yarn characteristics, different spinning processes, and processes subsequent to spinning (winding, singeing, bleaching, dyeing, and sizing).","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76391938","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 : 1966-09-01DOI: 10.1080/19447026608662385
Z. Sudnik
{"title":"The Correlation between Floor Trials on Carpets and Tests on a WIRA Dynamic Loading Machine","authors":"Z. Sudnik","doi":"10.1080/19447026608662385","DOIUrl":"https://doi.org/10.1080/19447026608662385","url":null,"abstract":"","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"9 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80211096","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 : 1966-09-01DOI: 10.1080/19447026608662386
B. Olofsson
{"title":"Deformation Properties of Stretch Fabrics","authors":"B. Olofsson","doi":"10.1080/19447026608662386","DOIUrl":"https://doi.org/10.1080/19447026608662386","url":null,"abstract":"","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81001416","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 : 1966-09-01DOI: 10.1080/19447026608662382
H. Catling, I. Davies
Conventional autolevelling is a radicai process in the sense that the mass per unit length of the product is determined by the setting of the autoleveller itself. This fact tends to limit the application of autolevelling to an early high-production process because, althougn there is a great deal of interest in the elimination of local variations introduced in subsequent processes, it is appreciated that the maintenance of a high standard of long-term uniformity is even more important than the removal of local irregularities. An attractive solution, which may well permit the employment of autolevellers at later processes than is at present economically and technically practicable, is conservative autolevelling. By this is meant autolevelling by devices which, although able to correct local variations, cannot exercise radical control of the mean level of the product. Part I of this paper considers the principles involved in the methods at present available for conservative autolevelling. Part II gives a the...
{"title":"32—CONSERVATION OF MEAN LEVEL IN AUTOLEVELLING","authors":"H. Catling, I. Davies","doi":"10.1080/19447026608662382","DOIUrl":"https://doi.org/10.1080/19447026608662382","url":null,"abstract":"Conventional autolevelling is a radicai process in the sense that the mass per unit length of the product is determined by the setting of the autoleveller itself. This fact tends to limit the application of autolevelling to an early high-production process because, althougn there is a great deal of interest in the elimination of local variations introduced in subsequent processes, it is appreciated that the maintenance of a high standard of long-term uniformity is even more important than the removal of local irregularities. An attractive solution, which may well permit the employment of autolevellers at later processes than is at present economically and technically practicable, is conservative autolevelling. By this is meant autolevelling by devices which, although able to correct local variations, cannot exercise radical control of the mean level of the product. Part I of this paper considers the principles involved in the methods at present available for conservative autolevelling. Part II gives a the...","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78087009","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 : 1966-09-01DOI: 10.1080/19447026608662381
P. Grosberg
The aims and purposes of studies of the structure and geometry of yarns and fabrics are reviewed. An indication is given of the magnitude of the effect that internal structure can have, and the factors that define the shape of the structural units in a fabric are demonstrated. The influence on textile processing of the factors that determine yarn and cloth structure is discussed.
{"title":"31—SHAPE AND STRUCTURE IN TEXTILES","authors":"P. Grosberg","doi":"10.1080/19447026608662381","DOIUrl":"https://doi.org/10.1080/19447026608662381","url":null,"abstract":"The aims and purposes of studies of the structure and geometry of yarns and fabrics are reviewed. An indication is given of the magnitude of the effect that internal structure can have, and the factors that define the shape of the structural units in a fabric are demonstrated. The influence on textile processing of the factors that determine yarn and cloth structure is discussed.","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75027333","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 : 1966-09-01DOI: 10.1080/19447026608662388
J. D. Owen
{"title":"An Automatic Cloth-bending-hysteresis Tester and Some of its Applications","authors":"J. D. Owen","doi":"10.1080/19447026608662388","DOIUrl":"https://doi.org/10.1080/19447026608662388","url":null,"abstract":"","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73373493","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 : 1966-09-01DOI: 10.1080/19447026608662380
M. Ryder
An account is given of measurements of fibre characteristics of wool from merino and longwool sheep bred in Australia in the early nineteenth century. The results are compared with those obtained on wool from several Spanish merinos that were reared in France in the eighteenth century. Although it was possible to make only a few tests, the results are considered to provide further evidence of the remarkable constancy of fibre diameter in merino wool over a long period.
{"title":"30—WOOL FROM SAMUEL MARSDEN'S SHEEP AND OTHER CONTEMPORARY MERINOS","authors":"M. Ryder","doi":"10.1080/19447026608662380","DOIUrl":"https://doi.org/10.1080/19447026608662380","url":null,"abstract":"An account is given of measurements of fibre characteristics of wool from merino and longwool sheep bred in Australia in the early nineteenth century. The results are compared with those obtained on wool from several Spanish merinos that were reared in France in the eighteenth century. Although it was possible to make only a few tests, the results are considered to provide further evidence of the remarkable constancy of fibre diameter in merino wool over a long period.","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91146185","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 : 1966-09-01DOI: 10.1080/19447026608662389
G. Priestley
{"title":"Ortho- and Paracortex in Animal Hairs","authors":"G. Priestley","doi":"10.1080/19447026608662389","DOIUrl":"https://doi.org/10.1080/19447026608662389","url":null,"abstract":"","PeriodicalId":17650,"journal":{"name":"Journal of The Textile Institute Transactions","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80628775","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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