III. Zvishandiso uye nzira yekugadzira ye lining coating
Cup lining coating ndeye inodzivirira layer inodzivirira mukati me ice cream mapepa makapu. Mhando dzinowanzo shandiswa dzemachira emidziyo ndeaya anotevera.
A. Rudzi rwezvinhu zvinoshandiswa pakupfekedza lining yemapepa makapu, senge polyester, polyethylene, nezvimwe.
1. Polyethylene
Polyethylene inoshandiswa zvakanyanya mumucheka wekuputira wemakapu emapepa nekuda kweiyo yakanakisa kusapinda kwemvura uye neoiri inodzivirira zvinhu, pamwe nekudhura kwayo. Idzo dzinoita kuti ive yakakodzera kugadzirwa kwemakapu makuru eice cream mapepa.
2. Polyester
Polyester coatings inogona kupa yakakwirira mazinga ekudzivirira. Nokudaro, inogona kudzivirira kunhuwa, kupinda kwegirisi, uye kupinda mukati meokisijeni. Naizvozvo, polyester inowanzoshandiswa mumhando yepamusoro-yekupedzisira mapepa makapu.
3. PLA (polylactic acid)
PLA ine hurombo husina kuita mvura, asi yakabatana nekuchengetedzwa kwezvakatipoteredza uye inoshandiswa zvakanyanya mune mamwe misika yepamusoro.
B. Taurira nzira yekugadzira, yakadai seyakakosha nzira yekupfekedza uye welding
Iyo nzira yekugadzira iyo yekuputira lining yemakapu emapepa ndeaya anotevera:
1. Special coating teknolojia
Mukugadzirwa kwemakapu emapepa, iyo yekubikira yembatya inoshandiswa zvakanyanya kuve nechokwadi chekusapinda kwemvura uye neoiri inodzivirira mhedzisiro yemakombe. Nzira yekuona kuti kuvharwa kwakagovaniswa zvakaenzana mukati memukombe yese kushandisa tekinoroji yejekiseni yemazuva ano. Chekutanga, iyo yakaumbwa sediment inotorwa uye yakagadzirirwa, uye yozoiswa mukati memukombe wepepa.
2. Welding
Mune zvimwe zviitiko, zvipfeko zvakakosha zvekugadzira hazvidiwi. Muchiitiko ichi, mukati memukombe wepepa unogona kushandisa kupisa chisimbiso (kana welding) teknolojia. Iyi inzira yekutsikirira akawanda akaturikidzana ezvakasiyana zvinhu pamwechete, kuchengeta iyo yemukati lining uye mukombe muviri zvakasimba pamwechete. Nekupa inovimbika yekudzivirira layer, maitiro aya anovimbisa kuti kapu yepepa inosimba kune imwe nhanho uye haizodonhe.
Izvo zviri pamusoro apa ndeye sumo kumhando dzezvinhu uye maitiro ekugadzira ekugadzira lining coating yemapepa makapu. Zvinhu zvakadaipolyethylene uye polyester inokodzera magiredhi akasiyana emukombe wepepas. Uye yakakosha yekubikira tekinoroji uye maitirwo ekugadzira welding anogona kuve nechokwadi chemhando uye mashandiro emukombe wepepa.