Ukuhlolwa Kwendwangu:

Le ndwangu ingahlangabezana ne-GB/T ejwayelekile, indinganiso ye-ISO, indinganiso ye-JIS, indinganiso yase-US.Zonke izindwangu zizohlolwa ngamaphesenti ayi-100 ngaphambi kokuthunyelwa ngokwezinga lesistimu yamaphuzu amane aseMelika.

Yenziwa Kanjani Indwangu ye-Elastane?

Izindlela ezine ezihlukene zingasetshenziswa ukukhiqiza le ndwangu enwebekayo: Ukuphotha okusabelayo, ukuphotha okumanzi kwesixazululo, i-melt extrusion, kanye nokuphotha okomile kwesixazululo.Eziningi zalezi zinqubo zokukhiqiza zilahliwe njengezingasebenzi kahle noma zimosha, futhi ukuphotha okomile kwesixazululo manje sekusetshenziselwa ukukhiqiza cishe amaphesenti angama-95 okunikezwa kwe-spandex emhlabeni.
Isixazululo senqubo yokuphotha esomile siqala ngokukhiqizwa kwe-prepolymer, esebenza njengesisekelo sendwangu ye-elastane.Lesi sinyathelo sifezwa ngokuxuba i-macroglycol ne-diisocyanate monomer ngaphakathi kohlobo olukhethekile lomkhumbi wokusabela.Lapho izimo ezifanele zisetshenziswa, lawa makhemikhali amabili ayasebenzisana ukuze akhe i-prepolymer.Isilinganiso sevolumu phakathi kwalezi zinto ezimbili sibalulekile, futhi ezimweni eziningi, isilinganiso se-glycol kuya ku-disocyanate se-1: 2 sisetshenziswa.
Uma kusetshenziswa indlela eyomile yokuphotha, le prepolymer ibe sesabelana ne-diamine acid ngenqubo eyaziwa ngokuthi i-chain extension reaction.Okulandelayo, lesi sixazululo sihlanjululwa nge-solvent ukuze sibe mncane futhi kube lula ukusiphatha, bese sifakwa ngaphakathi kweseli lokukhiqiza i-fiber.
Leli seli liyajikeleza ukuze likhiqize imicu futhi liphulukise i-elastane material.Ngaphakathi kwaleli ngqamuzana, ikhambi liphushwa nge-spinneret, okuwumshini obukeka njengekhanda leshawa elinezimbobo eziningi ezincane.Lezi zimbobo zakha ikhambi libe imicu, futhi le micu ibe isishisiswe ngaphakathi kwengxube ye-nitrogen negesi encibilikayo, okubangela ukusabela kwamakhemikhali okwenza i-polymer ewuketshezi ibe imicu eqinile.
Izintambo zibe sezihlanganiswa ndawonye njengoba ziphuma kuseli elijikelezayo eliyicylindrical ngomshini womoya ocindezelwe owasonta.Le micu esontekile ingenziwa ngezinketho zokujiya ezihlukahlukene, futhi yonke imicu ye-elastane engutsheni noma kwezinye izinhlelo zokusebenza empeleni yenziwa ngemicu emincane eminingi eye yabhekana nale nqubo yokusonteka.
Okulandelayo, i-magnesium stearate noma enye i-polymer isetshenziselwa ukuphatha impahla ye-elastane njenge-ejenti yokuqeda, evimbela imicu ukuthi inamathelane.Okokugcina, le micu idluliselwa ku-spool, bese isilungele ukudaywa noma ukulukwa ibe imicu.