Iindaba

Ngaba wakha wazibuza ukuba yenziwa njani ifilimu yeplastiki, into ebalulekileyo esetyenziswa ekupakisheni nakwimizi-mveliso emininzi? Iinkqubo yokwenza ifilimu yeplastikiluhambo olunika umdla oluguqula izixhobo zepolymer ekrwada zibe ziifilimu ezomeleleyo kunye neziguquguqukayo esidibana nazo yonke imihla. Ukusuka kwiingxowa zegrosari ukuya kwiisonga zemizi-mveliso, ukuqonda le nkqubo kunika ukukhanya malunga nokuba kutheni iifilimu zeplastiki zibaluleke kangaka kwizicelo zangoku.

Kweli nqaku, siza kuphonononga inkqubo yokwenziwa kwenyathelo ngenyathelo, izinto ezahlukeneyo ezibandakanyekayo, kunye neendlela ezenza iifilimu zeplastiki zilungele iimfuno ezahlukeneyo. Olu jonga luneenkcukacha luya kukunika ukuqonda malunga nendlela le nto ibonakala ilula edlala indima ebaluleke ngayo kwihlabathi elisingqongileyo.

Ukukhetha izixhobo ezifanelekileyo

Isiseko senkqubo yokwenziwa kwefilimu yeplastiki silele ekukhetheni izinto ezifanelekileyo ezikrwada. Iifilimu zeplastiki ngokuqhelekileyo zenziwe ngeepolymers ezifana ne-polyethylene (PE), i-polypropylene (PP), i-polyvinyl chloride (i-PVC), kunye ne-polyethylene terephtha kade (i-PET) .

I-LDPE (iPolyethylene yoXinano oluphantsi):Eyaziwayo ngokuguquguquka kwayo kunye nokungafihli, i-LDPE isetyenziswa ngokuqhelekileyo kwiingxowa zeplastiki kunye neefilimu ezicuthayo.

I-HDPE (iPolyethylene yoXinano oluPhezulu) : Esi sixhobo somelele kwaye sixhathise ngakumbi, sihlala sisetyenziselwa iibhegi zegrosari kunye neeliner zamashishini.

I-PP (iPolypropylene):Inika ukumelana nokufuma okugqwesileyo kunye nokucaca, iyenza ilungele ukupakishwa kokutya.

Ukukhetha i-polymer efanelekileyo kuxhomekeke kwiimpawu ezifunwayo zefilimu yokugqibela, njengokuqina, ukuguquguquka, kunye nokuchasana nokushisa okanye iikhemikhali.

Extrusion – Intliziyo yeNkqubo

Isinyathelo esilandelayo kwinkqubo yokwenziwa kwefilimu yeplastiki yi-extrusion. Kulapho iipellet zeplastiki ezikrwada zincibilika kwaye ziguqulwe zibe kwiphepha eliqhubekayo lefilimu. Kukho iindlela ezimbini eziphambili ze-extrusion ezisetyenziselwa ukwenza iifilimu zeplastiki:

Ifilimu evuthelweyo Extrusion

I-extrusion yefilimu evuthelweyo yindlela esetyenziswa ngokubanzi, ngakumbi kwiifilimu ezisetyenziselwa ukupakisha. Kule nkqubo, i-polymer enyibilikisiweyo ikhutshwe ngokufa kwesetyhula, idala ityhubhu yeplastiki. Umoya uye uvuthelwe kwityhubhu, uyivuthele okwebhaluni. Njengoko iqamza lisanda, yolula iplastiki ibe yifilim encinci, efanayo. Emva koko ifilimu iyapholiswa, ithotywe, ize isongiwe ukuze iqhubeke nokusebenza.

I-extrusion yefilimu evuthelweyo iyaziwa ngokuvelisa iifilimu ezomeleleyo ezinamandla aphezulu kunye nokuguquguquka, iyenza ilungele imveliso efana nokusolula kunye neengxowa zeplastiki.

Cast Film Extrusion

Cast ifilimu extrusion iyahluka kwindlela evuthelweyo ngokusebenzisa idayi flat. Iplastiki encibilikisiweyo ikhutshwe kwifom yephepha, epholile ngokukhawuleza kwii-roller ezipholileyo. Iifilimu zeCast zikholisa ukucaca ngcono kunye nolawulo oluchanekileyo lokutyeba xa kuthelekiswa neefilim ezivuthelweyo. Le ndlela isoloko isetyenziselwa izicelo ezifuna iifilimu ezikumgangatho ophezulu, ezifana nokupakishwa kokutya okanye iimveliso zonyango.

Unyango kunye nokuLungisa

Nje ukuba ifilimu ikhutshiwe, inonyango olongezelelweyo ukunyusa ukusebenza kwayo kunye nokusebenziseka kwayo. Olu nyango luqinisekisa ukuba ifilimu ihlangabezana neemfuno ezithile zeshishini kwaye ibandakanya:

Unyango lweCorona:Unyango olungaphezulu olwandisa iimpawu zokuncamathela zefilimu, nto leyo evumela ukuba yamkele ngcono ii-inki zokuprinta okanye iicoatings. Oku kubalulekile ekupakisheni iifilimu ezifuna uphawu okanye iilebhile.

Unyango lwe-Anti-static:Ifakwe kwiifilimu zokunciphisa umbane omileyo, okwenza kube lula ukuphatha kunye nokuthintela uthuli okanye i-debris ekubambeleleni phezulu.

Ukhuseleko lweUV:Kwiifilimu ezivezwe ukukhanya kwelanga, i-UV inhibitors inokongezwa ukukhusela ukuthotywa kokukhanya kwe-ultraviolet, ukwandisa ixesha lokuphila kwemveliso.

Ezinye izongezo zinokungeniswa ngexesha lenkqubo yokukhupha ukuze kuphuculwe iimpawu ezinjengokumelana nobushushu, amandla okukrazula, okanye imiqobo yokufuma.

Ukusika, ukuqengqeleka, kunye noLawulo loMgangatho

Emva kokonyango, ifilimu yeplastiki ilungele ukugawulwa kwaye igoqwe ngokobukhulu obufunwayo kunye nobukhulu. Eli nyathelo libalulekile ekuqinisekiseni ukufana kunye nokuhlangabezana neemfuno ezithile zabaxhasi. Ifilimu idla ngokufakwa kwimiqulu emikhulu, eyenza kube lula ukuyihambisa kunye nokuphatha.

Ulawulo lomgangatho yinkalo ebalulekileyo yenkqubo yokwenziwa kweefilimu zeplastiki. Uvavanyo lwenziwa ukuqinisekisa ukuba ifilimu ihlangabezana nemigangatho efunekayo yobunzima, amandla, ukuguquguquka, kunye nokungafihli. Ukungafezeki okunje ngemingxunya, amabala abuthathaka, okanye ubungqingqwa obungahambelaniyo bunokubangela ukusilela kwemveliso, ke abavelisi batyala imali eninzi kwiinkqubo ezichanekileyo zokubeka iliso kunye novavanyo.

Izicelo kunye nokuSetyenziswa kweShishini

Imveliso yokugqibela yenkqubo yokwenziwa kweefilim zeplastiki ifumana indlela yayo kwizicelo ezingenakubalwa kuwo wonke amashishini. Ezinye zezona zinto ziqhelekileyo zokusetyenziswa ziquka:

Ukupakishwa kokutya:Ifilimu yePlastiki ibonelela ngomqobo ngokuchasene nokufuma, ioksijini, kunye nongcoliseko, inceda ukugcina ubutsha.

Iifilimu zonyango: Kukhathalelo lwempilo, iifilimu zeplastiki ezinyumba zisetyenziselwa ukupakisha izixhobo zonyango kunye nezixhobo zotyando.

Iifilimu zezoLimo: Isetyenziswa kwizindlu zokugcina izityalo kunye nokukhusela izityalo, ezi filimu zinceda ukulawula imeko-bume ukuze zikhule ngcono izityalo.

Kwiimeko zoshishino, ifilimu yeplastiki isetyenziselwa ukusonga i-pallet, ukukhusela umphezulu, kunye neentambo zemichiza yeekhemikhali. Ukuguquguquka kunye nokuguquguquka kwefilimu yeplastiki kuyenza ibaluleke kakhulu kula macandelo.

Ukuqukumbela

Inkqubo yokwenziwa kwefilimu yeplastiki yinkqubo enzima kwaye elawulwa kakhulu eguqula izinto eziluhlaza zibe yimveliso eguquguqukayo kunye neyimfuneko. Ukususela ekukhethweni kwezinto eziphathekayo ukuya kwi-extrusion, unyango, kunye nokulawula umgangatho, isinyathelo ngasinye siqinisekisa ukuba ifilimu yokugqibela ihlangabezana neemfuno ezithile zamashishini ahlukeneyo. Ukuqonda le nkqubo akunikezeli nje ingqiqo ngokubaluleka kwefilimu yeplastiki kodwa iphinda ibonise iteknoloji kunye nokuchaneka okubandakanyekayo kwimveliso yayo.

Ukuba ujonge ukufunda ngakumbi malunga nenkqubo yokwenza ifilimu yeplastiki okanye uluhlu lwayo olubanzi lwezicelo, hlala uhlaziywa ngentsingiselo yeshishini kunye nenkqubela phambili ngokujonga izikhokelo zeengcali kunye nezixhobo. Olu lwazi lunokukuxhobisa ukuba wenze izigqibo ezinolwazi ngakumbi kwishishini lakho.