Inkcazo yeFilimu yoLolulo lwePE 1.
Ifilimu yokusolula ye-PE (ekwaziwa ngokuba yi-stretch wrap) yifilimu yeplastiki eneempawu zokuncamathelisa ezinokuthi zolulwe kwaye zisongelwe ngokuqinileyo kwiimpahla, nokuba kwicala elinye (extrusion) okanye kumacala omabini (evuthelweyo). I-glue ayinamatheli kumphezulu weempahla kodwa ihlala kumphezulu wefilimu. Ayifuni ukunciphisa ubushushu ngexesha lenkqubo yokupakisha, nto leyo enceda ukonga amandla, ukunciphisa iindleko zokupakisha, ukwenza lula ukuthuthwa kweekhonteyina, kunye nokuphucula ukusebenza kakuhle kwezinto. Ukudibanisa iipallet kunye neefolokhwe kunciphisa iindleko zokuthutha, kwaye ukubonakala okuphezulu kwenza kube lula ukuchongwa kweempahla, kunciphisa iimpazamo zokusasazwa.
Iinkcukacha: Ububanzi befilimu yomatshini yi-500mm, ububanzi befilimu esetyenziswa ngesandla yi-300mm, 350mm, 450mm, 500mm, ubukhulu yi-15um-50um, bunokunqunyulwa bube ziinkcukacha ezahlukeneyo.
2.Ukwahlulwahlulwa kokusetyenziswa kwefilimu yokwelula ye-PE
(1) Ifilimu Yokolula Ngesandla:Le ndlela isebenzisa ikakhulu ukupakisha ngesandla, kwaye ifilimu yokwelula ngesandla idla ngokuba neemfuno eziphantsi zomgangatho. Umqulu ngamnye unobunzima obumalunga ne-4kg okanye i-5kg ukuze kube lula ukuyisebenzisa.
(2) Ifilimu Yokolula Umatshini:Ifilimu yokwelula yomatshini isetyenziselwa ukupakisha ngoomatshini, ikakhulu iqhutywa kukuhamba kweempahla ukuze kufunyanwe ukupakisha. Ifuna amandla aphezulu okutsalwa kunye nokulula kwefilimu.
Isantya sokulula ngokubanzi yi-300%, kwaye ubunzima bomqukumbelo yi-15kg.
(3) Ifilimu yomatshini yokwelula kwangaphambili:Olu hlobo lwefilimu yokwelula lusetyenziswa kakhulu ekupakisheni ngoomatshini. Ngexesha lokupakisha, umatshini wokupakisha uqala ngokuyolula ifilimu ukuya kumlinganiselo othile aze ayisonge ngeempahla eziza kupakisha. Ixhomekeke ekuthambekeni kwefilimu ukuze ipakishe iimpahla ngokudibeneyo. Imveliso inamandla aphezulu okutsalwa, ukunwebeka, kunye nokumelana nokubhobozwa.
(4) Ifilimu enemibala:Iifilimu ezinemibala ezithambileyo ziyafumaneka ngombala oluhlaza okwesibhakabhaka, obomvu, omthubi, oluhlaza, nomnyama. Abavelisi bayazisebenzisa ukupakisha iimpahla ngelixa besahlula phakathi kweemveliso ezahlukeneyo, okwenza kube lula ukuchonga iimpahla.
3.Ulawulo lwe-PE Stretch Film Adhesiveness
Ukuncamathela kakuhle kuqinisekisa ukuba iileya zangaphandle zefilimu yokupakisha zinamathelana, zibonelela ngokhuseleko lomphezulu weemveliso kwaye zenze umaleko wangaphandle okhuselayo olukhaphukhaphu ujikeleze iimveliso. Oku kunceda ukuthintela uthuli, ioyile, ukufuma, amanzi, kunye nobusela. Okubalulekileyo, ukupakisha ifilimu yokwelula kusabalalisa ngokulinganayo amandla ajikeleze izinto ezipakishiweyo, kuthintela uxinzelelo olungalinganiyo olunokubangela umonakalo kwiimveliso, into engenakwenzeka ngeendlela zokupakisha zendabuko ezifana nokubopha, ukubopha, kunye neteyiphu.
Iindlela zokufezekisa ukunamathela ziquka iintlobo ezimbini: enye kukongeza i-PIB okanye i-master batch yayo kwi-polymer, enye kukuxuba ne-VLDPE.
(1) I-PIB lulwelo olucacileyo noluqinileyo. Ukongezwa ngokuthe ngqo kufuna izixhobo ezikhethekileyo okanye ukuguqulwa kwezixhobo. Ngokubanzi, kusetyenziswa i-PIB masterbatch. I-PIB inenkqubo yokufuduka, edla ngokuthatha iintsuku ezintathu, kwaye ichaphazeleka nabubushushu. Inamathela kakhulu kumaqondo obushushu aphezulu kwaye ayinanamathela kangako kumaqondo obushushu aphantsi. Emva kokusolula, ukunamathela kwayo kuncipha kakhulu. Ke ngoko, ifilimu egqityiweyo igcinwa kakuhle ngaphakathi koluhlu oluthile lobushushu (ubushushu bokugcina obucetyiswayo: 15°C ukuya kuma-25°C).
(2) Ukuxuba ne-VLDPE kuncamathela kancinci kodwa akudingi zixhobo zikhethekileyo. Ukuncamathela kuzinzile, akuxhomekekanga kwimida yexesha, kodwa kuyachaphazeleka nakubushushu. Kunamathela kakhulu kumaqondo obushushu angaphezu kwama-30°C kwaye kuncamathela kancinci kumaqondo obushushu angaphantsi kwe-15°C. Ukulungisa ubungakanani be-LLDPE kumaleko wokuncamathela kunokufezekisa i-viscosity oyifunayo. Le ndlela idla ngokusetyenziswa kwiifilimu zokudibanisa ezi-co-extrusion ezinamaleko amathathu.
4. Iimpawu zefilimu yoKolula ye-PE
(1) Ukudibanisa: Olu lolunye lwezona mpawu zibalaseleyo zokupakisha ifilimu eyoluliweyo, ebopha iimveliso ngokuqinileyo zibe yiyunithi encinci, ezinzileyo, nokuba phantsi kweemeko ezimbi, ithintela nakuphi na ukukhululeka okanye ukwahlulwa kweemveliso. Ukupakisha akunamiphetho ibukhali okanye ukunamathela, ngaloo ndlela kuthintela umonakalo.
(2) Ukhuseleko oluPhambili: Ukhuseleko oluPhambili lubonelela ngokhuseleko lomphezulu weemveliso, ludala ukhuseleko olukhaphukhaphu lwangaphandle. Luthintela uthuli, ioyile, ukufuma, amanzi, kunye nobusela. Ukupakisha ifilimu eyoluliweyo kusasaza amandla ngokulinganayo kwiindawo ezipakishiweyo, kuthintela ukufuduka kunye nokuhamba ngexesha lokuthuthwa, ngakumbi kwimizi-mveliso yecuba kunye nelaphu, apho ineziphumo ezizodwa zokupakisha.
(3) Ukonga Iindleko: Ukusebenzisa ifilimu yokwelula ukupakisha imveliso kunokunciphisa ngempumelelo iindleko zokusebenzisa. Ifilimu yokwelula itya malunga ne-15% kuphela yephakheji yokuqala yebhokisi, malunga ne-35% yefilimu yokunciphisa ubushushu, kunye malunga ne-50% yephakheji yebhokisi yekhadibhodi. Ikwanciphisa amandla okusebenza, iphucula ukusebenza kakuhle kokupakisha, kwaye iphucula amanqanaba okupakisha.
Ngamafutshane, intsimi yokusetyenziswa kwefilimu eyoluliweyo ibanzi kakhulu, iindawo ezininzi eTshayina ezingekahlolwa, kunye neendawo ezininzi eziye zahlolwa ezingekasetyenziswa kakhulu. Njengoko intsimi yokusetyenziswa isanda, ukusetyenziswa kwefilimu eyoluliweyo kuya kwanda kakhulu, kwaye amandla ayo emarike akanakulinganiswa. Ke ngoko, kuyimfuneko ukukhuthaza ngamandla ukuveliswa nokusetyenziswa kwefilimu eyoluliweyo.
5.Izicelo zeFilimu yoKolula ye-PE
Ifilimu yokwelula ye-PE inamandla aphezulu okutsalwa, ukumelana nokukrazula, ukucaca, kunye neempawu ezintle zokubuyisela. Ngomlinganiselo we-400% ngaphambi kokunwebeka, ingasetyenziselwa ukufaka izikhongozeli, ukuvala amanzi, ukuthintela uthuli, ukuthintela ukusasazwa, kunye neenjongo zokulwa nobusela.
Ukusetyenziswa: Isetyenziselwa ukusonga iipalethi kunye nokunye ukupakishwa kokusonga kwaye isetyenziswa kakhulu kwiimpahla zorhwebo zangaphandle, ukuvelisa iibhotile kunye neetini, ukwenza iphepha, izixhobo zekhompyutha kunye nezixhobo zombane, iiplastiki, iikhemikhali, izixhobo zokwakha, iimveliso zezolimo, ukutya, kunye neminye imizi-mveliso.
Ixesha lokuthumela: Okthobha-25-2023