Ko te Hydroxypropylmethylcellulose (HPMC) me te carboxymethylcellulose (CMC) he momo pūmua rerekē e whakamahia ana i roto i ngā whakatakotoranga pata kanohi, e whakamahia ana hei whakaora i ngā tohumate o te kanohi maroke. Ahakoa he rite tonu ō rāua āhua, he mārama ngā rerekētanga o ēnei matū e rua i roto i ō rāua hanganga matū, ō rāua āhuatanga, te tikanga mahi, me ngā tono haumanu.
Ngā pata kanohi Hydroxypropyl methylcellulose (HPMC):
1. Hanganga matū:
Ko te HPMC he mea hanga mai i te cellulose, he pūmua tūturu e kitea ana i roto i ngā pakitara pūtau tipu.
Ka whakaurua ngā rōpū hydroxypropyl me te methyl ki roto i te hanganga cellulose, ka hoatu ki te HPMC ngā āhuatanga ahurei.
2. Te matotoru me te rheology:
Ko te tikanga he nui ake te matotoru o ngā pata kanohi HPMC i te nuinga o ngā pata kanohi whakahinuhinu.
Mā te matotoru nui ake ka noho roa ngā pata ki te mata o te kanohi, ka roa ake te whakaora.
3. Tikanga mahi:
Ka hangaia e te HPMC he paparanga tiaki me te whakahinuhinu ki te mata o te kanohi, ka whakaiti i te waku me te whakapai ake i te pumau o te kiriata roimata.
Ka āwhina i te whakamamae i ngā tohu o te kanohi maroke mā te aukati i te mimiti nui o ngā roimata.
4. Te tono haumanu:
Ko ngā pata kanohi HPMC e whakamahia whānuitia ana hei rongoā i te mate kanohi maroke.
Ka whakamahia hoki ēnei i roto i ngā pokanga kanohi me ngā pokanga hei pupuri i te makuku o te kornea.
5. Ngā Painga:
Nā te matotoru nui ake, ka taea te whakaroa i te wā e noho ana ki te mata o te kanohi.
He whai hua te whakaora i ngā tohumate o te kanohi maroke, me te whakarato whakamarie hoki.
6. Ngā Huakore:
Tērā pea ka pōuri te tirohanga o ētahi tāngata i muri tonu i te whakaurunga nā te mea kua piki ake te matotoru.
Ngā pata kanohi Carboxymethylcellulose (CMC):
1. Hanganga matū:
Ko te CMC tētahi atu pūhui cellulose kua whakarerekētia ki ngā rōpū carboxymethyl.
Mā te whakaurunga o te rōpū carboxymethyl ka whakarei ake i te wairewatanga ki te wai, ka waiho te CMC hei pūhui wairewa-wai.
2. Te matotoru me te rheology:
He iti ake te matotoru o ngā pata kanohi CMC i te whakataurite ki ngā pata kanohi HPMC.
Nā te iti o te matotoru ka māmā ake te whakauru me te tere o te horapa ki te mata o te kanohi.
3. Tikanga mahi:
He hinu whakahinuhinu, he whakamakuku hoki te mahi a te CMC, e whakapai ake ana i te pumau o te kiriata roimata.
Ka āwhina i te whakamamae i ngā tohu o te kanohi maroke mā te pupuri i te makuku ki te mata o te kanohi.
4. Te tono haumanu:
E whakamahia whānuitia ana ngā pata kanohi CMC hei whakaora i ngā tohu o te kanohi maroke.
Ko te tikanga ka tūtohutia ēnei mō te hunga e pāngia ana e te mate kanohi maroke ngawari ki te āhua ngoikore.
5. Ngā Painga:
Nā te iti o te matotoru, ka tere te horapa, ā, he ngāwari te maturuturu.
Ka whakaora tere, ka whai hua hoki i ngā tohumate o te kanohi maroke.
6. Ngā Huakore:
Tērā pea ka hiahiatia he horomanga auau ake i ngā whakatakotoranga matotoru ake.
Tērā pea he poto ake te roa o te mahi a ētahi rongoā ki te mata o te kanohi.
Tātaritanga whakatairite:
1. Te matotoru:
He nui ake te matotoru o te HPMC, e roa ake ai te whakaora me te tiaki pumau.
He iti ake te matotoru o te CMC, ā, ka tere ake te horapa me te māmā ake te whakauru.
2. Te roa o te mahi:
Ko te tikanga ka roa ake te mahi a te HPMC nā te mea he matotoru ake.
Tērā pea ka hiahiatia he horomanga auau ake mō te CMC, inā koa mēnā he tino maroke te kanohi.
3. Te whakamarie o te tūroro:
Tērā pea ka kitea e ētahi tāngata i te tīmatanga ka pōuri te tirohanga mō te wā poto nā te nui ake o te matotoru o ngā pata kanohi HPMC.
He pai te aro atu ki ngā pata kanohi CMC i te nuinga o te wā, ā, he iti ake te whakapouri i te tīmatanga.
4. Ngā taunakitanga haumanu:
Ko te HPMC e tūtohutia ana mō te hunga e pāngia ana e te mate kanohi maroke āhua-waenga ki te kino.
Ko te CMC te tikanga e whakamahia ana mō ngā kanohi maroke ngawari ki te maroke āhua, me te hunga hoki e pai ana ki tētahi ranunga kāore i te matotoru.
He kōwhiringa nui ngā pata kanohi Hydroxypropylmethylcellulose (HPMC) me te carboxymethylcellulose (CMC) mō te rongoā i ngā tohumate o te kanohi maroke. Ko te kōwhiringa i waenga i ngā mea e rua e whakawhirinaki ana ki te hiahia whaiaro o te tūroro, te kaha o te kanohi maroke, me te roa o te mahi e hiahiatia ana. Ko te matotoru teitei o te HPMC ka whakarato i te tiaki roa ake, ko te matotoru iti o te CMC ka whakarato i te whakaora tere, ā, koinei pea te kōwhiringa tuatahi mō te hunga e pāngia ana e te tirohanga pōuri. He maha ngā wā ka whakaarohia e ngā tākuta kanohi me ngā kaimahi tiaki kanohi ēnei āhuatanga i te wā e whiriwhiri ana i ngā pata kanohi whakahinuhinu tino tika mō ā rātou tūroro, i hangaia hei whakapai ake i te whakamarie me te whakaora pai i ngā tohumate o te kanohi maroke.
Wā tuku: Hakihea-25-2023