Artificial fibers

Txheej txheem ntawm kev npaj
Ob qhov chaw tseem ceeb ntawm rayon yog cov roj av thiab cov khoom siv roj ntsha.Regenerated fiber yog rayon ua los ntawm cov khoom siv roj ntsha.Cov txheej txheem ntawm kev ua mucilage pib nrog kev rho tawm ntawm cov ntshiab alpha-cellulose (tseem hu ua pulp) los ntawm cov ntaub ntawv nyoos cellulose.Cov pulp no ces ua tiav nrog caustic soda thiab carbon disulfide los tsim cov txiv kab ntxwv-xim cellulose sodium xanthate, uas yog ces yaj nyob rau hauv diluted sodium hydroxide tov.Lub coagulation da dej yog tsim los ntawm sulfuric acid, sodium sulfate, thiab zinc sulfate, thiab cov mucilage yog lim, rhuab (tso rau ntawm qhov ntsuas kub li ntawm 18 mus rau 30 teev kom txo cov esterification ntawm cellulose xanthate), defoamed, thiab ces ntub dej. spun.Hauv coagulation da dej, sodium cellulose xanthate decomposes nrog sulfuric acid, ua rau cellulose regeneration, nag lossis daus, thiab tsim cov cellulose fiber.

Classification Rich silk, coarse thread, feather yarn, non-glazed artificial silk

Qhov zoo
Nrog hydrophilic qualities (11% ya raws rov qab), viscose rayon yog ib tug nruab nrab mus rau hnyav ntaub ntaub nrog zoo tib yam rau zoo zog thiab puas kuj.Nrog kev saib xyuas kom zoo, cov fiber ntau no tuaj yeem qhuav ntxuav thiab ntxuav hauv dej tsis muaj hluav taws xob zoo li qub lossis pilling, thiab nws tsis kim.

Qhov tsis zoo
Rayon's elasticity thiab resilience tsis zoo, nws shrinks loj tom qab ntxuav, thiab nws tseem raug rau pwm thiab mildew.Rayon poob 30% mus rau 50% ntawm nws lub zog thaum ntub, yog li yuav tsum tau saib xyuas thaum ntxuav.Tom qab ziab, lub zog rov qab los (kev txhim kho viscose rayon - high wet modulus (HWM) viscose fiber, tsis muaj teeb meem li ntawd).

Siv
Cov ntawv thov zaum kawg rau rayon yog nyob rau hauv cov khaub ncaws, upholstery, thiab kev lag luam.Piv txwv xws li poj niam lub tsho, tsho, ris tsho hauv qab, tsho loj, dai fabrics, tshuaj, nonwovens, thiab khoom tu cev.

Qhov sib txawv ntawm rayon
Artificial silk muaj lub ci ci, me ntsis ntxhib thiab tawv zoo nkauj, nrog rau kev xav ntub thiab txias.Thaum nws yog crinkled thiab uncrinkled ntawm tes, nws tsim ntau wrinkles.Thaum nws yog flattened, nws khaws cov kab.Thaum kawg ntawm tus nplaig yog moistened thiab siv los rub tawm cov ntaub, cov ntaub lo lo ntxhuav ncaj nraim yooj yim thiab tawg.Thaum qhuav los yog ntub, elasticity txawv.Thaum ob daim ntaub lo lo ntxhuav yog rub ua ke, lawv tuaj yeem ua suab nrov.Silk kuj hu ua "silk," thiab thaum nws clenched thiab tso tawm, wrinkles yuav tsis tshua pom.Cov khoom siv silk kuj muaj ob qho tib si qhuav thiab ntub elasticity.