Tlhahlobo ea Lesela:

Lesela lena le ka kopana le maemo a GB/T, maemo a ISO, maemo a JIS, maemo a US.Masela ohle a tla hlahlojoa ka liperesente tse 100 pele a romelloa ho latela maemo a tsamaiso ea lintlha tse 'ne tsa Amerika.

Lesela la Elastane le Etsoa Joang?

Mekhoa e mene e fapaneng e ka sebelisoa ho hlahisa lesela lena le rekere: Reaction spinning, solution wet spinning, melt extrusion, le solution dry spinning.Boholo ba mekhoa ena ea tlhahiso e lahliloe e le e sa sebetseng hantle kapa e senyehileng, 'me tharollo e ommeng e se e sebelisoa ho hlahisa hoo e ka bang karolo ea 95 lekholong ea phepelo ea spandex lefatšeng.
Tharollo e omeletseng ea ho ohla e qala ka tlhahiso ea prepolymer, e sebetsang e le motheo oa lesela la elastane.Mohato ona o finyelloa ka ho kopanya macroglycol le disocyanate monomer ka har'a mofuta o khethehileng oa sejana sa karabelo.Ha maemo a nepahetseng a sebelisoa, lik'hemik'hale tsena tse peli li kopana ho etsa prepolymer.Karolelano ea molumo lipakeng tsa lintho tsena tse peli e bohlokoa, 'me maemong a mangata, ho sebelisoa karolelano ea glycol ho disocyanate ea 1: 2.
Ha mokhoa oa ho ohla o ommeng o sebelisoa, prepolymer ena e ntan'o sebelisoa ka diamine acid ka mokhoa o tsejoang e le chain extension reaction.Ka mor'a moo, tharollo ena e hlapolotsoe ka motsoako ho etsa hore e be mosesaane le ho sebetsa habonolo, ebe e kenngoa ka har'a sele ea tlhahiso ea fiber.
Sele ena e bilika ho hlahisa likhoele le ho phekola masela a elastane.Ka har'a sele ena, tharollo e phunyeletsoa ka spinneret, e leng sesebelisoa se shebahalang joaloka hlooho ea shaoara e nang le masoba a mangata a manyenyane.Masoba ana a etsa tharollo hore e be likhoele, ebe likhoele tsena li futhumatsoa ka har'a motsoako oa naetrojene le khase e qhibilihisang, e bakang ho kopana ha lik'hemik'hale tse etsang polymer ea mokelikeli hore e be likhoele tse tiileng.
Joale likhoele li bokelloa hammoho ha li tsoa seleng ea cylindrical spinning ka mochine o hatelitsoeng oa moea o li sothang.Likhoele tsena tse sothehileng li ka etsoa ka mefuta e fapaneng ea botenya, 'me fiber e' ngoe le e 'ngoe ea elastane e apereng liaparo kapa lisebelisoa tse ling e hlile e entsoe ka likhoele tse ngata tse nyane tse fetileng mokhoa ona oa ho sotha.
Ka mor'a moo, magnesium stearate kapa polymer e 'ngoe e sebelisoa ho tšoara lisebelisoa tsa elastane e le ntho ea ho qetela, e thibelang likhoele ho khomarelana.Qetellong, likhoele tsena li fetisetsoa ho spool, ebe li se li loketse ho dauoa kapa ho lohuoa hore e be likhoele.