Uyini umehluko phakathi kwe-acetate ne-plastic eyeglass frames?

I-cetate yaziwa nangokuthi i-cellulose acetate noma i-zylonite futhi yenziwa nge-pulp yokhuni nokotini. Kwakungomunye wemicu yokuqala yokwenziwa futhi yasungulwa usosayensi uPaul Schützenberge ngo-1865. Ngo-1940, i-cellulose acetate yethulwa njengento yokugqokwa kwamehlo ngemva kweminyaka yocwaningo.

Lokhu okubalulekile okusha kuzuze idumela ngokuhlala isikhathi eside nemibala egqamile. Sekwaziwa futhi ngamandla ayo okulungiswa kalula ukuze kwakhiwe ukulingana ngokwezifiso. Odokotela bamehlo kanye nabakhiqizi bezingubo zamehlo babeyithanda ngaphezu kwamapulasitiki abakuthola kuyinselele ukusebenza. Lokhu kwakungenxa ye-brittleness nezinye izinkinga.

Yenziwa kanjani i-cellulose acetate?

Inqubo yokukhiqiza i-acetate inesibopho sezimfanelo eziyingqayizivele ezihlukanisa namapulasitiki avamile.

Amashidi acacile e-acetate ahlanganiswe nodayi bemvelo kanye ne-acetone ukuze kuzuzwe imibala egqamile namaphethini ajabulisayo. Lokhu kudala impahla ephelele yohlaka lwezingubo zamehlo.

Amarola amakhulu abe esecindezela i-acetate, futhi isikwa izingcezu ezincane ngaphambi kokucindezelwa futhi ngeminye imibala. Lokhu kukhiqiza amashidi asetshenziselwa ukwenza amafreyimu ezingubo zamehlo.

Umshini wokugaya we-CNC usetshenziselwa ukusika isimo esimaholo. Lokhu kube sekuthunyelwe ingcweti eyoyiqedela ngesandla bese ipholisha uhlaka.

Amafreyimu e-acetate alula futhi avame ukubhekwa njengekhwalithi engcono futhi ephakeme kunozimele bepulasitiki. Ziyaziwa ngezimfanelo zazo ze-hypoallergenic ngakho-ke ziyinketho ethandwayo phakathi kwalabo abanesikhumba esibucayi. Ngokungafani namafreyimu athile epulasitiki noma ezinye izinhlaka zensimbi, mancane amathuba okuba abangele ukucasuka.

Kungenzeka ukuthola amafreyimu epulasitiki ekhwalithi ephezulu kakhulu. Kodwa-ke, ngokuvamile ayinketho ethandwa kancane kunozimele be-acetate ngenxa yezizathu ezilandelayo:

Inqubo yokukhiqiza yenza amafreyimu epulasitiki abe bushelelezi kunefreyimu ye-acetate

Izibuko zepulasitiki zinzima kakhulu ukulungisa ngenxa yokungabikho kwezintambo zensimbi emathempelini

Izinketho zombala nephethini azihlukene kakhulu

Amafreyimu wamehlo epulasitiki ayisinqumo esihle kwezinye izimo. Kunezimo ezithile lapho benza khona ngaphezu kozimele be-acetate. Isibonelo, ziyindlela engcono kakhulu uma kuziwa ekudlaleni imidlalo futhi futhi ishibhile kakhulu.

I-TR90 Grilamid iyipulasitiki yekhwalithi ephezulu. Njenge-acetate, iyi-hypoallergenic futhi ihlala isikhathi eside ngokuguquguquka okuningi. Lokhu kubenza bafanelekele imisebenzi enamandla.

Amafreyimu epulasitiki aklanywe kucatshangwa ngezokusubatha ngokuvamile afaka izingcezu zekhala lerabha. Lezi zikhona ezingilazini eziningi ze-Oakley. U-Oakley ubiza lobu buchwepheshe babo be-'unobtanium' obuba namandla kakhulu lapho ujuluka futhi udlala imidlalo ukuze ukhiqize ukubamba okuqinile.

Hlobo luni lwepulasitiki amafreyimu engilazi yamehlo?

Amafreyimu amaningi wengilazi yamehlo enziwe nge-cellulose acetate noma ipulasitiki ye-propionate. Ozimele bepulasitiki bangase futhi babe nezinhlobo ezahlukene zepulasitiki, okuhlanganisa i-polyamide, inayiloni, i-SPX , i-carbon fibre kanye ne-Optyl (i-epoxy resin).

Manje usuyabona ukuthi kunomehluko omningi phakathi kwe-acetate namafreyimu engilazi yamehlo epulasitiki. Bobabili ozimele bahlinzeka ngemisebenzi ehlukene ukuze kusetshenziswe umuntu oyifakile. Amafreyimu engilazi yamehlo epulasitiki alungele ukudlala ezemidlalo kuyilapho amafreyimu engilazi yamehlo e-acetate evame ukuwina ngobuhle kodwa futhi abiza kakhulu.

Kwa Oxhumana Nabo Abazizwa Kahle, sibeka kokubili ozimele bepulasitiki ne-acetate abaklanywe ukunemba ngabaklami abaphambili bezingubo zamehlo. Thenga uRay-Ban, Oakley, Gucci nokuningi futhi uthole isaphulelo sika-10% se-oda lakho lokuqala.