[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-321407-105":59,"doc-detail-321407-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","concerning-the-speed-of-the-flow-molecular-processes-in-synthetic-fibers-during-their-texturing","CONCERNING THE SPEED OF THE FLOW MOLECULAR PROCESSES IN SYNTHETIC FIBERS DURING THEIR TEXTURING","","Study explains how molecular transport and relaxation kinetics in synthetic fibers change during texturing. The discussion links segment mobilities to polymer structure, temperature, deformation rate, and external tensions, showing that molecular rearrangement speed varies accordingly. High-rate fiber heating is required so heating and relaxation remain compatible, using contact/convection/radiation or ultrahigh-frequency thermal chambers. A molecular relaxation model is presented, with activation energy depending on temperature and stress, enabling calculation of thermo-fixing time and relaxation times for Kapron and Lavsan fibers under defined stretching loads.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/concerning-the-speed-of-the-flow-molecular-processes-in-synthetic-fibers-during-their-texturing/321407/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/concerning-the-speed-of-the-flow-molecular-processes-in-synthetic-fibers-during-their-texturing/321407.png","ImageObject",300,407,{"name":92,"@type":93},"Valentina","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-27","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":39},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What factors determine the speed of molecular processes during synthetic fiber texturing?","Question",{"text":112,"@type":113},"The speed depends on segment mobility, which varies with polymer structure, temperature, deformation rate, and external mechanical tensions during reprocessing.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Why are high-rate heating procedures needed in textile texturing equipment?",{"text":117,"@type":113},"Because the heating rate must be faster than the rate of molecular processes occurring during twisting, allowing effective thermal fixing.",{"name":119,"@type":110,"acceptedAnswer":120},"How is thermo-fixing time for fiber twist estimated in the provided model?",{"text":121,"@type":113},"By using relaxation-time equations where activation energy is modeled as a function of temperature and stress, enabling calculation of molecular relaxation time under specific stretching conditions.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},321407,1790450602,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":39,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145,"preview_page_count":4},13056703020460,"https://ap-avatar.wpscdn.com/avatar/be000253dac470eee5d?_k=1778207105932848923","cCKuznetsov,Yu.A.Concerning the speed of the flow molecularprocesses in synthetic fibers during theirtexturing /by Yu.A.Kuznetsov,A.P.iolotkovanā V.A.Usenko.6 p.:ill.Tekhnol.Tekstil.Prom.No.5(155):18-20(1983).Filed:  TRAiNSLATIOiJ NO.4732.IVTTIVTTAFbig article abstract中C94)84  \n(10941/84)CONCERNING THE SPEED OF THE MOLECULAR PASSAGEPROCESS IN SYNTHETIC THREADS DURING PROCESSING.Kuznetsov Yu.A,Molotov A.P.Usenko V.A.(A.N.Kosygin Textileinst.).Izvestiia Vysshikh Uchebnykh Zavedenii TekhnologiiaTekstilnoi Promyshlennosti No.5:18-20(1983).In Russian.7rets.  \n472  \nTRANSLATION\"  \n\"Yk  \n# \"CONCERNING THE SPEED OF THE FLOW MOLECULAR PROCESSES IN SYNTHETICFIBERS DURING THEIR TEXTURING\"\n\nYu.A.  \nKvzNETSo√  \n甲.Ya.  Koritysskaya,A.P.Molotkov and v.A.Usenko TekhnologiyaS 18-2心Tekstil!noi Promyshlennosti,1983,No.-6(15.6),26-29  \nThe various aspects of the reprocessing of the synthetic fibersare related to their complex passage in a relaxation process,  \ndepending upon the various mobilities according to the type and size(=volume)of the macromolecular segments.  In a dependency upon theproperties of the polymer structure,the temperature,the rate ofdeformation and the value of the external tensions during thereprocessing of the fibers,the speed(=rate)of the molecularrearrangement is significantly changed.  During the texturing ofthe synthetic fibers for the purpose of increasing their bulkinessfalsetwisting procedures have been used,which provide the pre-  \nliminary heating to the fibers(at temperatures of~200°c),twistingand its thermal-fixing(=setting)(1).  With regard to the tendencyto increase the production of texturized fibers on existing equip-ment problems arise regarding acceleration of the heating of themoving fibers.With regard to this thermal chamber used for theheating of the fibers it is possible to divide them into two types.With respect to the first type,it is applied(=installed)on thefirst-processing machine for the heating of the fibers with ratesup to 500 degrees/sec.,and grouped among these are the thermalchambers with contact,convection and radiation(infrared)proce-dural methods for supplying the heat(2).  With respect to the  \nsecond type there are the thermal chambers belonging to this groupwhich are heated with ultrahigh frequencies,and also those thatuse heating from a low temperature melting,where the rate of theheating of the fibers amounts to 10⁷degrees/sec(3,4).Of  \nnecessicity the high rate procedural methods for the heating of thefibers are dependent upon the high rates involved in the reprocessing,which must be less than the rate of the molecular processes,whichare taking place in the fibers during their twisting.  By way ofexample,the polyamides and the polyethylene terephthalates areadjusted (=aligned)depending upon these rates and temperatures,and conditions are calculated for the complete thermo-fixing ofthe twist of the fibers during their texturizing.  \nIn the process for the thermo-fixing of the twist in the fibersduring the texturizing process the rearrangement of the segments inthe amorphous phase in the polymer takes place,and this is  \naccompanied by the breaking of the physical intermolecular bonds inone place and reginerating them in other places.  During this periodthe mobility of the segments is dependent upon the stability of theintermolecular bonds,the temperature,the external mechanicaltension(=stress)and in the general cases is characterized by theformula(5):  \nT=Toexp[U(T,σ)/RT],(1)  \nwhere tis the relaxation time for the segmentation process,To=10-12sec.,U is the activation energy,σ is the stress (=tension),R =8.31x 10³Joules/mol degree is the universal gas constant.  \nhttps://archive.org/details/concerningspeedo00kuzn  \nFrom(1)it follows that for the determination of the time forthe thermo-fixing of the twist it is necessary to make apparent thefunctional dependency of the activation energy on the temperatureand the tension,assigned at the moment of force of twisting at thedevice on the te","cbCaijKKDNBIl1MZ","https://ap.wps.com/l/cbCaijKKDNBIl1MZ","pdf",1484337,22,"English","# Introduction\n## Heating methods for texturing\n## Thermo-fixing mechanism and molecular rearrangement\n## Relaxation-time model and parameter dependence\n## Application to Kapron and Lavsan fibers","[{\"question\":\"What factors determine the speed of molecular processes during synthetic fiber texturing?\",\"answer\":\"The speed depends on segment mobility, which varies with polymer structure, temperature, deformation rate, and external mechanical tensions during reprocessing.\"},{\"question\":\"Why are high-rate heating procedures needed in textile texturing equipment?\",\"answer\":\"Because the heating rate must be faster than the rate of molecular processes occurring during twisting, allowing effective thermal fixing.\"},{\"question\":\"How is thermo-fixing time for fiber twist estimated in the provided model?\",\"answer\":\"By using relaxation-time equations where activation energy is modeled as a function of temperature and stress, enabling calculation of molecular relaxation time under specific stretching conditions.\"}]","CONCERNING THE SPEED OF THE FLOW MOLECULAR PROCESSES IN SYNTHETIC FIBERS DURING THEIR TEXTURING | PDF",1789959211,55]