Iyini Indima yePorosity kuRelease Liners?
Kwadalwa ngo 12.18
I-porosity—umgomo ophakathi kokufihlekile kodwa obalulekile okwenza ukuthi ukusebenza kwe-release liners—udlala indima ebalulekile ekutheni i-liner ivikele kanjani futhi ikhulule kanjani ama-adhesives abucayi. Emhlabeni wezinto zokukhulula ezisebenza kahle, ama-glassine release liners akhanya ngenxa ye-porosity yabo elawulwayo ngokukhethekile, ethinta ngqo ukusebenza kwabo nokwethembeka kwabo.
1. Ukuqonda iPorosity kuRelease Liners
- Incazelo: I-porosity ibhekisela ekubeni khona nasekuhlukaniseni kwezikhala ezincane noma izikhala ngaphakathi kwesakhiwo sephepha.
- Ukulinganisa: Kuvame ukukalwa ngokumelana nomoya (isb., ukuhlolwa kwe-Gurley porosity) noma izinga lokumunca uwoyela.
- Ukulawula: Ezingxenyeni zeglasi, ububanzi buncishiswa ngokusebenzisa i-super-calendering (270–320 kN/m umthwalo wombhoshongo ku-150–200°C), kuholela ebusweni obuqinile, obuphumelelayo, futhi obulinganayo kakhulu.
2. Kungani Ukungena Kwe-porosity Okuphansi Kubalulekile
- Ivinjwa Ukungena Kwe-Adhesive: Isakhiwo esine-porosity ephansi siqinisekisa ukuthi ama-adhesives awangeni ephepheni, agcina ubukhulu bokufaka obufanayo nokusebenza.
- Ithuthukisa Ukuvumelana Kokukhulula: Ukuhluka okufanayo kuholela ekusatshalalisweni kwe-silicone okuqinile, kunciphisa umehluko emandleni okukhulula futhi kunciphisa imfucumfucu ye-adhesive.
- Ithuthukisa Izici Zokuvikela: Ukungena okuphansi kuholela ekutheni kube nokumelana okungcono nokwamanzi kanye namafutha, lapho ama-glassine liners efinyelela kumazinga okuvikela amafutha aphansi njenge 0.8 g/m²/24h uma kuqhathaniswa no 5.2 g/m²/24h kumaphepha ajwayelekile e-kraft.
3. Umthelela kumamethrikhi okusebenza okubalulekile
- Ukulawulwa Kwamandla Okukhulula: Ukuphathwa kwe-porosity okuqondile kuvumela ukumbozwa kwe-silicone okwenziwe ngokwezifiso, okuvumela izincazelo ezithile zamandla okukhulula ezinhlelweni ezibucayi ezifana nezintambo zokwelapha noma izinto zikagesi.
- Ukuzinza Kwamafutha: Ukungena okuphansi kuthuthukisa ukumelana nokushisa, kuvumela ama-liners e-glassine ukuthi abekezelele izinga lokushisa elingafika ku-160°C ngaphandle kokuguquka.
- Ukucaciswa Kwezakhiwo: Ingilazi enedensity ephezulu, eneporosity ephansi inokucaca okungu-28–44%, okuvumela ukuhlolwa kokubona kwezingxenye zokunamathela ezinhlelweni ezinemininingwane.
4. Izicelo Zangempela
- Umkhakha Wezokwelapha: Emathunjini okwelapha kanye nezikhwama ezihamba ngaphezulu, iglasi eline-low-porosity ivimbela ukuhamba kwe-adhesive, iqinisekisa ukuhlala kwe-product nokunamathela okwethembekile.
- Ukukhiqiza Kwezinto Zokusebenza: Ngesikhathi sokuhlanganiswa kwezinto, ukuvuleka okulawulwayo kunciphisa ukukhiqizwa kwamaphetshana futhi kuvinjezele ukugeleza kwe-adhesive, okubalulekile kumakroelektroniki.
- Ukupakishwa Kfood: Ukungena okuphansi kuqinisekisa ukuthi ama-adhesives asetshenziswa kumamaki wokudla awahlangani nemvelo yokupakisha, kugcina ukuphepha kokudla nokuphila kahle.
5. Izitayela Zesikhathi Esizayo Nezinto Ezintsha
- Ukugxila Kokuhlala: I-glassine liners entsha eneqinisekiso le-FSC ihlanganisa i-porosity ephansi nezitifiketi ezihambisana nemvelo, ihlangabezana nesidingo esikhulayo semathiriyeli angaphinde asetshenziswe futhi angabola.
- Izobuchwepheshe Zokufaka I-Coating: Izinto ezintsha ezifana ne-anti-fold glassine ziqhuba ukulawulwa kwe-porosity ezingeni elisha, zandisa ukuqina ngaphandle kokwehlisa ukusebenza kokukhulula.
Ekuphetheni, i-porosity ibaluleke kakhulu kunemininingwane yezobuchwepheshe—iyimpahla eyisisekelo ekhomba yonke iphrofayela yokusebenza ye-release liners. I-glassine eneporosity ephansi kakhulu, etholeka ngokuhleleka kahle, iyenza ibe impahla ekhethwayo ezinhlelweni lapho ukuhambisana, ukwethembeka, nokusebenza kungavunyelwa. Njengoba imboni iqhubeka ifuna ukunemba okuphezulu nokusimama, ukufunda i-porosity kuzohlala kube enhliziyweni yokwakhiwa kwezizukulwane ezilandelayo ze-release liner.
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