I-substrate yinto ehlukanisayo phakathi kwebhodi yepakethi kunye nomhlaba apho ubeka khona. Ngokunyusa kakhulu ukukhutshwa komzimba komgangatho womhlaba, kuthintela ukungena kweengxolo zangaphandle kwigumbi kunye nokufakela izandi xa uhamba.
Ukuze uqonde ukuba yiyiphi i-substrate eyona nto ibhetele ekuthengeni ibhodi yepakethi, kufuneka uziqonde ngeemfuno ekufuneka zihlangane nazo. Oku, ngaphezu kwazo zonke, ukutshintshwa okuhle kwe-thermal, ukumelana neekhemikhali, ukungqinanga kwamanzi kunye nobukhulu obuphezulu (2-5 mm). Izinto eziphathekayo kufuneka ziphathwe ngaphambi kokuthengisa ukungeniswa kwe-bactericidal.
Uhlobo lwee-substrates zebhodi yepakethi
- Izinto ezenziwe nge-polyethylene foam. Iimveliso zolu hlobo zibhekisela kwizinto ezibonakalayo kwaye i-polyethylene i-Foam. Iimbambano ziyakhathalela ukukhanya kunye ne-oxygen, okunciphisa inani labo. Zifumaneka okanye zingenanto. Ukuba uyazibuza ukuba zeziphi iintlobo zee-substrates zebhodi yepakethi ibhetele, kufuneka uqaphele into yokuba abaninzi bakhetha ukhetho lokuqala. Izinto eziphathekayo zibekwe ngecala lokubumba ngaphandle.
- I-substate ye-polystyrene eyandisiweyo. Ubonakaliswe ukuqina nokuqina, kugcina ukufudumala kakuhle, kufuna ukuba umhlaba uphelele ukubeka. Emva kwexesha, loo mveliso ilahlekelwa ngumgangatho wayo. Xa iimveliso zishiswa, ukukhishwa kweesxikisi, okuyinto encinci yemveliso. (Ifoto 2)
- Ipaki yekork phantsi kwebhodi lepakethi. Izinto eziphathekayo ziveliswa kwimiqulu okanye amaphepha. Ukufaneleka kwayo kuyimvelo, kwaye i-drawback kukuba i-coorking ifanele ibe yinyani kwaye ihlambuluke. Ukufakela ifilimu ye-polyethylene iyadingeka.
- I-Coniferous substrate phantsi kwebhodi lepakethi. Ukufumana ukuthandwa ngenxa yemvelaphi yemvelo. Ihlala ihlala ihlala kwaye ikwazi ukugqithisa izandi. Uninzi umkhalazo we-fragility, ohlawulelwa yendalo.
- Substrate yeBitumen-cork. Iphepha le-Kraft liphathwa ngebhitumini kwaye lifafazwe nge-cork. Izinto eziphathekayo zibekwa ngecala lomkhombe. Kufuneka kuqatshelwe ukuba ibhitumen inomhlaba wokukhupha izinto ezinobungozi.
- Izinto ezidibeneyo (iTuplex). Ngokuba i-substrate ayiyikrakra, ukuba i-coupler ineephene ezincinane. Iziqendu ezintathu zaso zikhuselo olufanelekileyo kwibhodi yepakethe. Uluhlu oluphezulu luyenziwe nge-polyethylene, ngezantsi kwefilimu ephasayo, kwaye ngokuqhelekileyo iibhola ziyafakwa, ngenxa yokuba imveliso inokuphakama okufanayo.
Ngaphambi kokukhetha i-substrate kwibhodi yepakethi, cingisisa malunga nokuba awufanele ugcine ukuthenga. Imveliso emihle iya kwandisa ubomi bebhodi eliqhotyoshelweyo kunye nokuphucula umgangatho wesondlo.