Nthano yosalekeza m'makampani opangira matabwa amati kukweza gulaye ndi 'njira yotsika mtengo' yogwiritsa ntchito zingwe za waya, zomwe zimapulumutsa ndalama m'malo mwa ntchito zosafunikira kwenikweni. Zoona zake n’zosiyana kwambiri. Zopangira zonyamulira zopanga zimapereka zabwino zambiri zachitetezo kuposa zingwe zamawaya: zimateteza katundu wofewa kuti zisawonongeke pamtunda, zimatenga katundu wogwedezeka popanda kupunduka kosatha, ndipo zimapereka zizindikiro zowonekera zisanalephereke. Malinga ndi CERTEX Denmark, masilingi opangira nsalu ndiye njira yomwe amakonda pa katundu wofunika kutetezedwa pamwamba ndipo amapereka kusinthasintha kwapamwamba poyerekeza ndi zingwe zamawaya. Bukuli likutsutsa nthano za 'zotsika mtengo' ndikulongosola chifukwa chake ma gulayeni nthawi zambiri amakhala otetezeka, abwino kwambiri pamayendedwe amakono okweza.
Choponyera chonyamulira chomwe chasungidwa chonyowa chingawoneke ngati chosawonongeka, koma chinyezi chingayambitse matenda a mildew, kuwonongeka kwa ulusi, ndipo-ngati gulaye ya nayiloni - kutaya mphamvu kwakanthawi mpaka 15% ikanyowa, mphamvu ikabwezeretsedwa ikaumitsa . Chofunikira kwambiri, masingidwe a nayiloni amatha kutaya mpaka 25% ya mphamvu yake ikanyowa chifukwa cha kuyamwa kwa chinyezi. Ma polyester slings, mosiyana, sakhudzidwa kwambiri ndi chinyezi koma amatha kudwala ndi mildew ndi kuvunda ngati atasungidwa monyowa. Bukhuli likuwunika zoopsa zomwe zimagwirizanitsidwa ndi gulayeni zonyowa, kuwonongeka kwapadera kwa zipangizo zosiyanasiyana zopangira, ndi kufufuza ndi kuyanika kofunikira musanabweretse gulaye chonyowa kuntchito.
Kudziwa nthawi yopuma pantchito yonyamula gulaye ndi imodzi mwamaluso ofunikira kwambiri pakusungitsa chitetezo. Sling yomwe ikuwoneka yothandiza ikhoza kukhala ndi zowonongeka zobisika zomwe zimasokoneza mphamvu zake, pamene mitundu yowonongeka yowonekera-kudula, kuphulika, kutentha kwa mankhwala, kuwonongeka kwa kutentha, ndi kuwonongeka kwa UV-aliyense ali ndi ndondomeko yopuma pantchito yomwe imatanthauzidwa ndi ASME B30.9, OSHA, ndi EN 1492. Kwa oyang'anira kubera, akatswiri achitetezo, ndi ogwira ntchito, bukhuli limapereka chidziwitso chothandiza popanga zisankho zodziwikiratu zopuma pantchito.
Choponyera chonyamulira chokhala ndi chitetezo cha 7: 1 chimakhala ndi mphamvu yosweka kasanu ndi kawiri malire ake ovomerezeka. Izi zikutanthauza kuti gulaye yomwe idavotera tani imodzi iyenera kupirira matani 7 osalephera. Chitetezo cha 7: 1 chimalamulidwa ndi miyezo yayikulu yamakampani kuphatikiza EN 1492-1, EN 1492-2, ndi AS 4497:2018 pazitsulo zopangira. Nkhaniyi ikufotokoza kusiyana pakati pa chitetezo ndi malire olemetsa, chifukwa chake 7: 1 ndiye muyeso wama gulayeti opangira, momwe amafananira ndi zida zina, komanso chifukwa chake malire achitetezowa ndi ofunikira poteteza ogwira ntchito ndi katundu pakukweza zinthu zenizeni padziko lapansi.