[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-323403-105":59,"doc-detail-323403-en":131},{"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":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","status-of-pneumatic-yarn-splicing-general","STATUS OF PNEUMATIC YARN SPLICING - General","","Status of pneumatic yarn splicing evaluates how pneumatic splicing works for singles versus plied yarns. The study outlines why plied yarns require different preparation, describes experiments that vary yarn-and ply-twist, air-orifice configuration, and operating pressures, and measures splice quality by strength retention. Results show high efficiencies near 100% after initial optimization, with splice strength typically averaging 70–80% and depending on acceptable minima.",{"@graph":69,"@context":123},[70,84,106],{"@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/status-of-pneumatic-yarn-splicing-general/323403/",{"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/status-of-pneumatic-yarn-splicing-general/323403.png","ImageObject",300,407,{"name":92,"@type":93},"Noah","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-09-21",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",12,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the main challenge of pneumatic splicing for plied yarns compared with singles yarns?","Question",{"text":113,"@type":114},"Pryed yarns are harder to splice because prism and opening settings optimized for singles do not fully apply to the combined alternating twist structure of yarn and ply-twist, making the pneumatic opening of the two cut ends more difficult.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"How were the experiments designed to find critical factors for splicing?",{"text":118,"@type":114},"A systematic series varied yarn-and ply-twist and also changed yarn size, staple fineness, staple length, composition, and number of filaments in the yarn cross-section to cover the range encountered in practice.",{"name":120,"@type":111,"acceptedAnswer":121},"What do the results say about splice success rate and strength retention for plied yarns?",{"text":122,"@type":114},"After initial experimentation, pneumatic splicing was almost 100% successful for all plied yarns, and splice strength averaged about 70–80% of yarn strength, with minimum values typically in the 40–60% range.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},323403,1791358060,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":146,"preview_page_count":4},8796095462418,"https://ap-avatar.wpscdn.com/avatar/80000253c1241d02b47?x-image-process=image/resize,m_fixed,w_180,h_180&k=1778826106357471780","Artzt,Preininger.  \nStatus of pneumatic yarn splicing.3 p.  \nText.Prax.39,4:329-30(Apr.,1984)。Filed:  TRANSLATION NO.4436TEP灾  TPRA下  \n# T R A N S L A T I O N\n\nSTATUS OF PNEUMATIC YARN SPLICING  \nArtzt,    PreiningerArT2T,P.  \n## 1.   General\n\nBecause of the advantages in further processing alone,most of the singles yarns produced today are spliced.  Pneu-matic splicing is the major method used.  Ring-spun yarnsesp.can be spliced without any difficulties as long as onedoes not deal with specialty yarns,such as effect yarns orhighly twisted crepe yarns.  In the latter cases each has tobe decided separately.  \nSplicing of plied yarns is not as easy as that ofsingles yarns.  The prisms and opening devices optimized forsingles yarns are not fully applicable to twisted yarnsbecause of the combined alternating twist structure of yarn-and ply-twist.  The pneumatic preparation(opening)of thetwo cut ends is more difficult.  The experiments werecarried out with a special prism of the Schlafhorst Co.which was optimized for the splicing of plied yarns.  Thisprism can be incorporated without any changes into a standaraSchlafhorst splicer.  \n## 2.   Experimentation\n\nIn a systematic series of experiments,both yarn-andply-twist were varied.  The purpose of the experiments wasto determine if there is a critical ply-twist for pneumaticsplicing.  In addition to yarn size,staple fineness(dpf),staple length,composition and number of filaments in thevarn cross-section(see Table I)were also varied.   Thus asufficiently large number of yarn variables was available tocover the range of yarns one encounters in the trade.  Woolenyarns were purposefully not examined.  But some experiencewith splicing of woolen yarns is also available.  \nThe criteria used in the evaluation of the splicecorrespond fully to the customary test methods used in thetrade.  Thirty splices are tested for strength in a singleyarn break method.  The average strength,and the minimumvalue obtained are both expressed as per cent of the singlesor plied yarn strength.  Since the absolute strength ofpiled yarns is higher than that of singles yarns,a somewhatlower percent strength retention of the splice is acceptablefor plied yarns.  \nDigitized by the Internet Archivein 2019  \nhttps://archive.org/details/statusofpneumati00artz  \nThe number of compressed air orifices in the prismhas an effect on both the appearance and the strength ofthe splice.·The two characteristics go in oppositedirections:  at optimum appearance strength is lowest.Thus prism DS 21(Fig.1)with three orifices gives spliceswith very good visual appearance since the yarn ends arecompletely tied into the yarn structure -see Fig.2.  \nThe time for opening of the yarn ends is critical forsuccessful splicing.  With plied yarns one should chooserelatively long opening times to ensure that the yarn endsare pneumatically opened.  This is easily accomplished bythe proper choice and setting of an eccentric disc.  Theeffect of the air impulse on the splicing process can beincreased by using faster micromagnetic valves.  This leadsto a higher certainty of splicing.  After initial experi-mentation splicing was almost 100%successful with allplied yarns.  Practically no failures were encountered,thus one can count on high efficiencies in splicing pliedyarns.  Splicing pressure was at 6-8 bar(87-116 psi)andwas thus somewhat higher than used for singles yarns.  Theopening pressure was chosen at 5-6.5 bar(72.5-94.25 psi),again higher than for singles yarns.  \n## 3.  Results\n\nNo difference in success of splicing and strength ofthe splice were obtained as a function of yarn compositionor twist parameter.  This is logical since optimally pre-pared yarn end has neither yarn-nor ply-twist.  One dealsrather with a tuft of parallel filaments.  Thus the magni-tude of the original yarn-or ply-twist has no effect onthe strength of the splice.  The average splice strengthwas 70-80%of yarn strength,and minimum values were 40-60%.If one accepts minimal","cbCaihwCXY6WAhzi","https://ap.wps.com/l/cbCaihwCXY6WAhzi","pdf",721587,14,"English","# 1. General\n# 2. Experimentation\n# 3. Results","[{\"question\":\"What is the main challenge of pneumatic splicing for plied yarns compared with singles yarns?\",\"answer\":\"Pryed yarns are harder to splice because prism and opening settings optimized for singles do not fully apply to the combined alternating twist structure of yarn and ply-twist, making the pneumatic opening of the two cut ends more difficult.\"},{\"question\":\"How were the experiments designed to find critical factors for splicing?\",\"answer\":\"A systematic series varied yarn-and ply-twist and also changed yarn size, staple fineness, staple length, composition, and number of filaments in the yarn cross-section to cover the range encountered in practice.\"},{\"question\":\"What do the results say about splice success rate and strength retention for plied yarns?\",\"answer\":\"After initial experimentation, pneumatic splicing was almost 100% successful for all plied yarns, and splice strength averaged about 70–80% of yarn strength, with minimum values typically in the 40–60% range.\"}]","STATUS OF PNEUMATIC YARN SPLICING - General | PDF",1789965137,35]