Kugenzura imyenda:

Iyi myenda irashobora kuba yujuje ubuziranenge bwa GB / T, ISO isanzwe, JIS isanzwe, Amerika.Imyenda yose izasuzumwa 100 ku ijana mbere yo koherezwa hakurikijwe ibipimo bine bya Amerika.

Nigute Elastane Imyenda ikorwa?

Uburyo bune butandukanye burashobora gukoreshwa mugukora iyi myenda ya elastike: Kuzunguruka kwizunguruka, igisubizo gitose kizunguruka, gushonga gushonga, nigisubizo cyumye.Byinshi muribi bikorwa byakozwe byajugunywe nkibidakorwa neza cyangwa bisesagura, kandi igisubizo cyumye cyumye ubu gikoreshwa mugutanga hafi 95% byisi ya spandex itanga.
Igisubizo cyumye kizunguruka gitangirana no gukora prepolymer, ikora nkishingiro ryimyenda ya elastane.Iyi ntambwe irangizwa no kuvanga macroglycol na monomer ya diisocyanate muburyo bwihariye bwubwato.Iyo ibintu bikwiye bishyizwe mubikorwa, iyi miti yombi ikorana kugirango ikore prepolymer.Umubare w'ijwi hagati yibi bintu byombi urakomeye, kandi mubihe byinshi, glycol na diisocyanate ya 1: 2 ikoreshwa.
Iyo uburyo bwo kuzunguruka bwumye bwakoreshejwe, iyi prepolymer ihita ikorwa na aside ya diamine muburyo buzwi bwo kwagura urunigi.Ibikurikira, iki gisubizo kivangwa nigishishwa kugirango cyoroshe kandi cyoroshe kugikora, hanyuma kigashyirwa imbere muri selile ikora fibre.
Iyi selile irazunguruka kugirango itange fibre kandi ikize ibintu bya elastane.Muri aka kagari, igisubizo gisunikwa muri spinneret, nigikoresho gisa nigituba gifite utwobo twinshi.Ibyo byobo bigira igisubizo muri fibre, hanyuma utwo dusimba noneho tugashyuha muri azote na gaze ya gaz ya solvent, ibyo bikaba bitera reaction ya chimique ikora polymer yamazi mumigozi ikomeye.
Imigozi noneho ihurizwa hamwe mugihe isohotse muri selile izunguruka ya selile hamwe nigikoresho cyumuyaga gifunitse kibahindura.Izi fibre zigoramye zirashobora gukorwa muburyo butandukanye bwo kubyibuha, kandi buri fibre ya elastane mumyenda cyangwa izindi progaramu zakozwe mubyukuri bito bito byanyuze murwego rwo kugoreka.
Ibikurikira, magnesium stearate cyangwa indi polymer ikoreshwa mugutunganya ibikoresho bya elastane nkibikoresho birangiza, bibuza fibre gukomera.Ubwanyuma, utwo dusimba twimuriwe kumurongo, hanyuma biteguye gusiga irangi cyangwa kuboha mumibabi.