Nlekọta anyanwụ, na karịsịa nchebe anyanwụ, bụ otu n'imengalaba na-eto ngwa ngwa nke ahịa nlekọta onwe onye.Ọzọkwa, a na-etinye nchebe UV ugbu a n'ọtụtụ ngwaahịa ịchọ mma a na-eji kwa ụbọchị (dịka ọmụmaatụ, ngwaahịa nlekọta anụ ahụ na ihe ịchọ mma), ebe ndị na-azụ ahịa na-amatakwu na mkpa ọ dị ichebe onwe ha pụọ na anyanwụ abụghị naanị na-emetụta ezumike osimiri. .
Onye nhazi nlekọta anyanwụ nke taaga-enwerịrị SPF dị elu yana ụkpụrụ nchebe UVA siri ike, ebe na-eme ka ngwaahịa mara mma nke ukwuu iji gbaa ndị ahịa ume, yana ọnụ ahịa dị oke ọnụ ahịa n'oge akụ na ụba siri ike.
Ịrụ ọrụ na ịdị mma na-adabere n'ezie na ibe ya; na-ebuli ịdị irè nke ihe ndị a na-eji eme ihe na-enyere aka ịmepụta ngwaahịa SPF dị elu na obere ọkwa nke nzacha UV. Nke a na-enye onye na-emepụta ohere ohere ka ukwuu iji bulie mmetụta anụ ahụ. N'aka nke ọzọ, ezigbo mma ngwaahịa na-agba ndị na-azụ ahịa ume ka ha tinyekwuo ngwaahịa na ya mere bịaruo nso na SPF nke akpọrọ.
Arụmọrụ ị ga-atụle mgbe ị na-ahọrọ ihe nzacha UV maka nhazi ịchọ mma
• Nchekwa maka otu ndị ọrụ njedebe ezubere- A nwalere ihe nzacha UV niile iji hụ na ọ dị mma maka ngwa ngwa; agbanyeghị ụfọdụ ndị nwere mmetụta nwere ike inwe mmeghachi omume nfụkasị n'ụdị nzacha UV ụfọdụ.
• arụmọrụ SPF- Nke a na-adabere na wavelength nke absorbance kacha, ịdị ukwuu nke absorbance, na obosara nke absorbance ụdịdị dị iche iche.
• Broad spectrum / UVA nchedo nrụpụta ọrụ- A na-achọrọ usoro ihe mkpuchi anwụ nke oge a iji zute ụfọdụ ụkpụrụ nchebe UVA, mana ihe a na-aghọtachaghị nke ọma bụ na nchedo UVA na-enyekwa aka na SPF.
• Mmetụta na mmetụta anụ ahụ- Ihe nzacha UV dị iche iche nwere mmetụta dị iche iche na mmetụta anụ ahụ; dịka ọmụmaatụ ụfọdụ ihe nzacha UV mmiri mmiri nwere ike inwe mmetụta "ịnyapade" ma ọ bụ "dị arọ" na akpụkpọ ahụ, ebe ihe nzacha mmiri na-eme ka akpụkpọ ahụ dịkwuo ọkụ.
• Ọdịdị na akpụkpọ ahụ- Inorganic nzacha na organic particulates nwere ike ime ka ịcha ọcha na akpụkpọ mgbe ejiri ya na nnukwu mkpokọta; nke a na-abụkarị ihe na-adịghị mma, ma na ụfọdụ ngwa (dịka ọmụmaatụ, nlekọta anyanwụ nwa) enwere ike ịghọta ya dị ka uru.
• Photosability- Ọtụtụ ihe nzacha organic UV na-emebi emebi na ikpughe na UV, si otú a na-ebelata ịdị irè ha; mana nzacha ndị ọzọ nwere ike inye aka mee ka ihe nzacha “photo-labile” ndị a guzosie ike ma belata ma ọ bụ gbochie ire ere.
• Mmiri na-eguzogide- Ntinye nke ihe nzacha UV nke mmiri na-agbanye n'akụkụ ndị na-agbanye mmanụ na-enyekarị nkwado dị ukwuu na SPF, mana ọ nwere ike ime ka ọ sie ike ịnweta mmiri-eguzogide.
» Lelee ngwa nri nlekọta anwụ na ndị na-eweta ngwaahịa na nchekwa data ịchọ mma niile dị na ahịa.
Chemistry UV Filter
A na-ekewa ihe ndị na-eme ihe na-enyo enyo dị ka ihe mkpuchi anwụ anwụ ma ọ bụ ihe mkpuchi anwụ na-adịghị ahụ. Ihe mkpuchi anwụ nke Organic na-amịkọrọ nke ọma n'ogologo ebili mmiri a kapịrị ọnụ ma na-apụta ìhè na ìhè a na-ahụ anya. Inorganic sunscreens na-arụ ọrụ site na-atụgharị uche ma ọ bụ na-achụsasị UV radieshon.
Ka anyị mụọ gbasara ha nke ọma:
Organic sunscreens
Organic sunscreens na-marakwa dị kachemical sunscreens. Ihe ndị a mejupụtara mkpụrụ ndụ ihe nketa (carbon) nke na-arụ ọrụ dị ka ihe mkpuchi anwụ site na ịmịnye UV radieshon na ịtụgharị ya ka ọ bụrụ ike ọkụ.
Organic Sunscreens Ike & adịghị ike
Ike | Adịghị ike |
Ịma mma ịchọ mma - ọtụtụ ihe nzacha organic, ịbụ ma ọ bụ mmiri mmiri ma ọ bụ ihe siri ike soluble, anaghị ahapụ ihe ọ bụla a na-ahụ anya n'elu akpụkpọ ahụ mgbe etinyere ya site na nhazi. | Ụdịdị dị warara - ọtụtụ na-echekwa naanị n'obere ogologo ikuku dị warara |
Omenala organics na-aghọta nke ọma site formulators | "Cocktails" chọrọ maka elu SPF |
Ịrụ ọrụ dị mma na obere mkpokọta | Ụfọdụ ụdị siri ike nwere ike isi ike igbari na idobe na ngwọta |
Ajụjụ gbasara nchekwa, mgbakasị na mmetụta gburugburu ebe obibi | |
Ụfọdụ ihe nzacha organic bụ foto anaghị akwụsi ike |
Ngwa ngwa sunscreens Organic
Enwere ike iji ihe nzacha Organic na ngwaahịa nchekwa anwụ / UV niile mana ọ nwere ike ọ gaghị adị mma na ngwaahịa maka ụmụ ọhụrụ ma ọ bụ akpụkpọ ahụ nwere mmetụta n'ihi ohere nke mmeghachi ahụ nfụkasị na ndị nwere mmetụta. Ha adabaghị maka ngwaahịa na-ekwu "okike" ma ọ bụ "organic" n'ihi na ha niile bụ kemịkalụ sịntetik.
Organic UV Filters: Ụdị kemịkal
PABA (para-amino benzoic acid) mmepụta ihe
• Ọmụmaatụ: Ethylhexyl Dimethyl PABA
• Ihe nzacha UVB
• A naghị ejikarị ya eme ihe n'oge n'ihi nchegbu nchekwa
salicylates
• Ọmụmaatụ: Ethylhexyl Salicylate, Homosalate
• Ihe nzacha UVB
• Ọnụ ala
• Ịdị obere arụmọrụ tụnyere ọtụtụ nzacha ndị ọzọ
Cinnamates
• Ọmụmaatụ: Ethylhexyl Methoxycinnamate, Iso-amyl Methoxycinnamate, Octocrylene
• Ihe nzacha UVB dị irè nke ukwuu
• Octocrylene bụ ihe a na-ese foto ma na-enyere aka mee ka foto kwụsie ike nzacha UV ndị ọzọ, mana cinnamates ndị ọzọ na-enwekarị enweghị ike foto.
Benzophenones
• Ọmụmaatụ: Benzophenone-3, Benzophenone-4
• Nye ma UVB na UVA absorption
• Ịrụ ọrụ dị ala mana ọ na-enyere aka ịkwalite SPF yana nzacha ndị ọzọ
• A naghị ejikarị Benzophenone-3 eme ihe na Europe n'oge a n'ihi nchegbu nchekwa
Triazine na triazole mmepụta
• Ọmụmaatụ: Ethylhexyl triazone, bis-Ethylhexyloxyphenol Methoxyphenyl Triazine
• Dị irè nke ukwuu
• Ụfọdụ bụ ihe nzacha UVB, ndị ọzọ na-enye nchebe UVA/UVB sara mbara
• Dị ezigbo mma photostability
• Dị oke ọnụ
Dibenzoyl mmepụta
• Ọmụmaatụ: Butyl Methoxydibenzoylmethane (BMDM), Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB)
• UVA absorbers dị irè nke ukwuu
• BMDM nwere adịghị mma photostability, ma DHHB bụ ọtụtụ ihe ndị ọzọ photostable
Benzimidazole sulfonic acid sitere na ya
• Ọmụmaatụ: Phenylbenzimidazole Sulfonic Acid (PBSA), Disodium Phenyl Dibenzimidazole Tetrasulfonate (DPDT)
• Mmiri-soluble (mgbe neutralized na kwesịrị ekwesị ntọala)
• PBSA bụ ihe nzacha UVB; DPDT bụ ihe nzacha UVA
• Ọtụtụ mgbe na-egosi mmekọrịta ya na nzacha na-agbaze mmanụ mgbe ejiri ya na ngwakọta
Ihe nrụpụta Camphor
• Ọmụmaatụ: 4-Methylbenzylidene Camphor
• UVB nyo
• A naghị ejikarị ya eme ihe n'oge n'ihi nchegbu nchekwa
Anthranlates
• Ọmụmaatụ: Menthyl anthranilet
• Ihe nzacha UVA
• Dịtụ ala arụmọrụ
• akwadoghị na Europe
Polysilicon - 15
• Silicone polymer nwere chromophores n'agbụ n'akụkụ
• UVB nyo
Inorganic sunscreens
A na-akpọkwa ihe mkpuchi anwụ ndị a dị ka ihe mkpuchi anụ ahụ. Ihe ndị a nwere ụmụ irighiri ihe ndị na-arụ ọrụ dị ka ihe mkpuchi anwụ site na ịmịnye na ịgbasa UV radieshon. Inorganic sunscreens dị ma dị ka akọrọ ntụ ntụ ma ọ bụ tupu dispersions.
Inorganic sunscreens Ike & adịghị ike
Ike | Adịghị ike |
Nchekwa / anaghị ewe iwe | Nghọta nke adịghị mma aesthetics (skinfeel na whitening na akpụkpọ) |
Nnukwu ụdịdị | Ntụ ntụ nwere ike isi ike iji mepụta ya |
Enwere ike nweta SPF dị elu (30+) site na iji otu arụ ọrụ (TiO2) | Inorganics ejidela na arụmụka nano |
Mgbasasa dị mfe itinye | |
Ebe a na-ese foto |
Ngwa na-ahụ maka anwụ anwụ
Igwe mkpuchi anwụ nke inorganic dabara adaba maka ngwa nchebe UV ọ bụla ma ewezuga usoro doro anya ma ọ bụ sprays aerosol. Ha dabara nke ọma maka nlekọta anwụ nwa, ngwaahịa akpụkpọ anụ, ngwaahịa ndị na-ekwu "eke", na ịchọ mma ịchọ mma.
Inorganic UV nzacha Ụdị Chemical
Titanium dioxide
• Isi ihe nzacha UVB, mana ụfọdụ akara ule na-enyekwa ezigbo nchekwa UVA
• Dị iche iche akara ule dị na dị iche iche urughuru nha, mkpuchi wdg.
• Ọtụtụ akara ule na-adaba na mpaghara nanoparticles
• Nha irighiri ihe kacha nta na-apụta ìhè na akpụkpọ ahụ mana ọ na-enye obere nchebe UVA; nha buru ibu na-enye nchebe UVA karịa mana ọ na-achacha ọcha na akpụkpọ ahụ
Zinc oxide
• Isi ihe nzacha UVA; arụmọrụ SPF dị ala karịa TiO2, mana na-enye nchebe ka mma karịa TiO2 na mpaghara ogologo ogologo “UVA-I”
• Dị iche iche akara ule dị na dị iche iche urughuru nha, mkpuchi wdg.
• Ọtụtụ akara ule na-adaba na mpaghara nanoparticles
Performance / Chemistry matrix
Ọnụ si -5 ruo +5:
-5: mmetụta ọjọọ dị ịrịba ama | 0: enweghị mmetụta | +5: mmetụta dị mma dị ịrịba ama
(Rịba ama: maka ọnụ ahịa na ịcha ọcha, "mmetụta ọjọọ" pụtara ọnụ ahịa ma ọ bụ ịcha ọcha na-abawanye.)
Ọnụ | SPF | UVA | Mmetụta akpụkpọ | Na-acha ọcha | Foto-nkwụsi ike | Mmiri | |
Benzophenone-3 | -2 | +4 | +2 | 0 | 0 | +3 | 0 |
Benzophenone-4 | -2 | +2 | +2 | 0 | 0 | +3 | 0 |
Bis-ethylhexyloxyphenol Methoxyphenyl Triazine | -4 | +5 | +5 | 0 | 0 | +4 | 0 |
Butyl Methoxy-dibenzoylmethane | -2 | +2 | +5 | 0 | 0 | -5 | 0 |
Diethylamino Hydroxy Benzoyl Hexyl Benzoate | -4 | +1 | +5 | 0 | 0 | +4 | 0 |
Diethylhexyl Butamido Triazone | -4 | +4 | 0 | 0 | 0 | +4 | 0 |
Disodium Phenyl Dibenzimiazole Tetrasulfonate | -4 | +3 | +5 | 0 | 0 | +3 | -2 |
Ethylhexyl Dimethyl PABA | -1 | +4 | 0 | 0 | 0 | +2 | 0 |
Ethylhexyl Methoxycinnamate | -2 | +4 | +1 | -1 | 0 | -3 | +1 |
Ethylhexyl salicylate | -1 | +1 | 0 | 0 | 0 | +2 | 0 |
Ethylhexyl Triazon | -3 | +4 | 0 | 0 | 0 | +4 | 0 |
Homosalate | -1 | +1 | 0 | 0 | 0 | +2 | 0 |
Isoamyl p-Methoxycinnamate | -3 | +4 | +1 | -1 | 0 | -2 | +1 |
mentyl Anthranilet | -3 | +1 | +2 | 0 | 0 | -1 | 0 |
4-Methylbenzylidene Camphor | -3 | +3 | 0 | 0 | 0 | -1 | 0 |
Methylene Bis-Benzotriazolyl Tetramethylbutylphenol | -5 | +4 | +5 | -1 | -2 | +4 | -1 |
Octocrylene | -3 | +3 | +1 | -2 | 0 | +5 | 0 |
Phenylbenzimidazole Sulfonic Acid | -2 | +4 | 0 | 0 | 0 | +3 | -2 |
Polysilicon - 15 | -4 | +1 | 0 | +1 | 0 | +3 | +2 |
Tris-biphenyl Triazine | -5 | +5 | +3 | -1 | -2 | +3 | -1 |
Titanium dioxide - transperent ọkwa | -3 | +5 | +2 | -1 | 0 | +4 | 0 |
Titanium dioxide - ọkwa dị iche iche sara mbara | -3 | +5 | +4 | -2 | -3 | +4 | 0 |
Zinc oxide | -3 | +2 | +4 | -2 | -1 | +4 | 0 |
Ihe na-emetụta arụmọrụ nke nzacha UV
Arụmọrụ nke titanium dioxide na zinc oxide dịgasị iche iche dabere na njirimara onye ọ bụla nke ọkwa ọkwa ejiri, dịka ọmụmaatụ. mkpuchi, ụdị anụ ahụ (ntụ ntụ, mgbasa nke mmanụ, mgbasa nke mmiri).Ndị ọrụ kwesịrị ịkpọtụrụ ndị na-ebubata ngwaahịa tupu ha ahọrọ ọkwa kacha mma iji mezuo ebumnobi arụmọrụ ha na sistemụ nhazi ha.
A na-emetụta ịdị mma nke ihe nzacha organic UV na-agbaze mmanụ site na solubility ha na emollient ndị a na-eji na nhazi ahụ. Na mkpokọta, polar emollients bụ ihe mgbaze kacha mma maka nzacha organic.
Arụmọrụ nke ihe nzacha UV niile na-emetụta nke ukwuu site na omume reological nke nhazi ahụ yana ike ya imepụta ọbụna ihe nkiri na-ejikọta ọnụ na akpụkpọ ahụ. Ojiji nke ndị na-emepụta ihe nkiri kwesịrị ekwesị na ihe mgbakwunye rheological na-emekarị ka ọ dịkwuo mma nke nzacha.
Ngwakọta na-adọrọ mmasị nke ihe nzacha UV (mmekọrịta)
Enwere ọtụtụ ngwakọta nke ihe nzacha UV na-egosi mmekọrịta. A na-enwetakarị mmetụta synergistic kachasị mma site na ijikọta ihe nzacha na-akwado ibe ya n'ụzọ ụfọdụ, dịka ọmụmaatụ: -
• Na-ejikọta ihe nzacha mmanụ-soluble (ma ọ bụ mmanu gbasasịrị) na nzacha mmiri-soluble (ma ọ bụ mmiri gbasasịa)
• Ijikọta ihe nzacha UVA na ihe nzacha UVB
• Na-ejikọta ihe nzacha inorganic na ihe nzacha organic
Enwekwara ụfọdụ nchikota nke nwere ike inye uru ndị ọzọ, dịka ọmụmaatụ, a maara nke ọma na octocrylene na-enyere aka na-ese foto-edozi ụfọdụ ihe nzacha foto-labile dị ka butyl methoxydibenzoylmethane.
Agbanyeghị, mmadụ ga-akpachara anya mgbe niile maka akụrụngwa ọgụgụ isi na mpaghara a. Enwere ọtụtụ patent na-ekpuchi otu nchikota nke nzacha UV na a na-adụ ndị na-emepụta ọdụ ka ha lelee mgbe niile na nchikota ha bu n'obi iji anaghị emebi ikike ikike nke ndị ọzọ.
Họrọ nzacha UV ziri ezi maka nhazi ịchọ mma gị
Usoro ndị a ga-enyere gị aka ịhọrọ ihe nzacha UV ziri ezi maka nhazi ịchọ mma gị:
1. Wepụta ebumnobi doro anya maka ịrụ ọrụ, ihe ịchọ mma na nkwupụta echere maka nhazi ahụ.
2. Lelee ihe nzacha anabatara maka ahịa a chọrọ.
3. Ọ bụrụ na ị nwere chassis a kapịrị ọnụ nke ịchọrọ iji, tụlee ihe nzacha ga-adaba na chassis ahụ. Otú ọ dị, ọ bụrụ na ọ ga-ekwe omume, ọ kacha mma ịhọrọ ihe nzacha na mbụ ma chepụta usoro gburugburu ha. Nke a bụ eziokwu karịsịa na nzacha organic ma ọ bụ particulate.
4. Jiri ndụmọdụ sitere n'aka ndị na-ebubata ya na / ma ọ bụ ngwaọrụ amụma dị ka BASF Sunscreen Simulator iji chọpụta nchikota kwesịrị ekwesị.nweta SPF ezuberena ebumnuche UVA.
Enwere ike ịnwale nchikota ndị a na nhazi. In-vitro SPF na UVA ụzọ ule bara uru n'oge a iji gosi njikọ ndị na-enye nsonaazụ kacha mma n'ihe gbasara arụmọrụ - enwere ike ikpokọta ozi ndị ọzọ na ngwa, nkọwa na njedebe nke ule ndị a na nkuzi e-ọzụzụ SpecialChem:UVA/SPF: Na-ebuli ụkpụrụ nnwale gị
Nsonaazụ ule ahụ, yana nsonaazụ ule na nyocha ndị ọzọ (dịka nkwụsi ike, nrụpụta nchekwa, mmetụta anụ ahụ), mee ka onye nrụpụta nwee ike họrọ nhọrọ (s) kacha mma yana duzie mmepe n'ihu nke nhazi (s).
Oge nzipu: Jan-03-2021