Essential Oil vs Fragrance Oil
Cov ntsiab lus tseem ceeb roj thiab cov roj tsw qab yog siv sib hloov hauv ntau lub sijhawm. Txawm li cas los xij, lawv muaj ntau qhov sib txawv ntawm lawv cov khoom thiab cov khoom siv. Ob qho no tau siv dav hauv kev lag luam tshuaj pleev ib ce thiab perfumery. Nws muaj kev nyab xeeb kom paub qhov txawv ntawm ob, vim tias cov roj yam tseem ceeb tuaj yeem siv rau hauv kev siv tshuaj tsw qab, tab sis yog siv cov roj tsw qab, nws tuaj yeem muab ntau yam kev mob tshwm sim.
Cov Roj Tseem Ceeb
Cov roj tseem ceeb yog cov kua muab rho tawm los ntawm ntau qhov chaw ntawm tsob ntoo. Distillation feem ntau yog siv rau lub hom phiaj no. Paj, nplooj, tawv ntoo, noob, cag, thiab lwm yam ntawm qee cov nroj tsuag muaj cov ntsiab lus tseem ceeb, uas tuaj yeem muab rho tawm ua kua. Cov no yog volatile thiab hydrophobic, uas ua rau lawv yooj yim rau kev cais los ntawm distillation. Hauv cov txheej txheem distillation, cov khoom siv cog yog boiled nrog dej. Thaum lub sij hawm no, lub volatile tebchaw evaporate, thiab thaum nws yog condensed rov qab los ntawm txias tseem ceeb roj yuav tau. Cov extracts no tsis muaj xim los yog muaj xim daj me ntsis, thiab yog cov concentrated heev. Yog li ntawd, lawv yuav tsum tau diluted ua ntej siv hauv daim ntawv thov. Lwm yam tshaj li distillation, hnyav extraction thiab qhia txoj kev kuj yog siv los rho tawm cov roj tseem ceeb los ntawm cov khoom cog. Cov khoom sib txawv muaj cov ntxhiab tsw txawv, uas yog qhov tshwj xeeb rau lawv. Lawv yog siv rau kev siv tshuaj, ua noj ua haus, tshuaj pleev ib ce thiab tshuaj tsw qab, thiab lwm yam. Kev nqus los yog siv cov roj yam tseem ceeb hauv daim tawv nqaij muab ntau yam txiaj ntsig kho mob hlwb thiab lub cev. Antibacterial, antiviral, anti-inflammatory, anti-allergic, antiseptic, analgesic, diuretic yog qee yam ntawm cov roj yam tseem ceeb tawm ntawm ntau pua ntawm lawv. Jasmine, cinnamon, txiv qaub, sawv, clove, kua txob dub, qhiav yog qee yam ntawm cov nroj tsuag uas nquag siv los rho cov roj yam tseem ceeb.
Fragrance oil
Cov roj tsw qab yog cov khoom sib xyaw ntawm cov khoom siv hluavtaws, lossis qee zaum nws tuaj yeem yog cov roj tseem ceeb thiab cov khoom siv hluavtaws. Qee lub sij hawm lawv tau ua kom hnov tsw zoo li tej yam ntuj tso, thiab qee zaum lawv raug tsim los tsim cov tshuaj tsw qab tshiab. Txhua cov roj tsw qab tsis muaj kev nyab xeeb siv rau ntawm daim tawv nqaij, lossis rau kev kho mob. Cov roj tsw qab yog siv rau hauv cov tshuaj pleev ib ce thiab cov tshuaj tsw qab lossis cov khoom siv tshuaj tsw qab xws li tswm ciab, cua fresheners, thiab lwm yam. Lawv tsis tawg zoo nyob rau hauv dej, tab sis nrog kev pab ntawm ib tug solubilizer qhov no yuav ua tau. Cov roj tsw qab tsis hloov pauv, vim lawv yog cov khoom siv hluavtaws.
Qhov txawv ntawm cov roj tseem ceeb thiab cov roj tsw qab
– Cov roj tsw qab tsuas muaj cov ntsiab lus ntawm cov nroj tsuag, tab sis cov roj tsw qab muaj cov khoom siv dag zog los muab cov tshuaj tsw qab.
– Cov roj tseem ceeb yog volatile; nyob rau hauv sib piv, cov roj tsw qab yog tsis volatile; yog li ntawd, lawv kav ntev dua cov roj yam tseem ceeb. (Fragrance kav ntev dua hauv cov roj tsw qab)
– Cov roj tsw qab tsis muaj kev kho mob zoo li cov roj tseem ceeb ua.
– Muaj ntau cov tshuaj lom neeg hauv cov roj yam tseem ceeb, yog li, nws tsis tuaj yeem tsim cov khoom tsim tawm. Tab sis cov roj tsw qab yog cov khoom siv hluavtaws. Yog li ntawd, tuaj yeem muaj cov roj tsw qab uas muaj ntxhiab tsw zoo ib yam li ncuav qab zib, dej hiav txwv, ncuav qab zib thiab lwm yam.
– Feem ntau ntawm cov roj tseem ceeb yog kim dua, tab sis cov roj tsw qab pheej yig dua.
– Cov hom roj tsw qab yog siab dua cov roj yam tseem ceeb, vim tias muaj pes tsawg tus roj tsw qab tuaj yeem tsim cov khoom tsim hauv cov chaw sim.
