I-Adhesives ye-Coating Application
Iingubo ezininzi ezincamathelayo zenzelwe ubunjineli ukusombulula imingeni yesicelo esingenamkhawulo. Uhlobo lokugquma kunye nobuchule bukhethwe ngononophelo, rhoqo ngolingo olubanzi kunye neempazamo, ukunika iziphumo ezizezona zilungileyo. Iicoaters ezinamava kufuneka ziphendule ngeentlobo ezahlukeneyo zezinto eziguquguqukayo kunye nokukhethwa kwabathengi ngaphambi kokukhetha kunye nokuvavanya isisombululo. Iingubo zokuncamathelisa zixhaphakile kwaye zisetyenziswa kwihlabathi kuninzi lwemisebenzi. I-Vinyl inokugqunywa ngokuncamatheliswa koxinzelelo ukuze isetyenziswe kwimiqondiso, imizobo eludongeni, okanye izisongelo zokuhombisa. I-Gaskets kunye ne "O"-amakhonkco anokuthi afakwe kwi-adhesive ukuze afakwe ngokusisigxina kwiimveliso ezahlukeneyo kunye nezixhobo. Iingubo ezinamathele zifakwe kwiingubo kunye nezinto ezingezona ezilukiweyo ukuze zikwazi ukulanywa kwii-substrates ezinzima kwaye zinike i-soft, ukukhusela, ukugqiba ukukhusela imithwalo ngexesha lokuthutha.
Iintlobo
Kukho izinto ezininzi eziya ekukhetheni isisombululo sokunamathelisa esisebenzayo:
Iisubstrates zidla ngokuba ziimathiriyeli ezifana nephepha, izigqubuthelo zodonga, iplastiki yentsimbi, iifilimu kunye neefoyile. Nganye ineempawu zayo ezizodwa ezifana ne-porosity, amandla okuqina kunye nokumelana nemichiza.
Ukukhupha iiLiners zisetyenziselwa ukukhusela i-adhesive kuqhagamshelwano kunye nokungcola ngaphambi kokusetyenziswa. I-Liners ingenziwa kwizinto ezahlukeneyo kunye nokusebenza ngokubambisana ne-adhesive coating ukulawula amandla e-peel.
Umphezulu wesicelo usenokuba ludonga lwesamente, umgangatho okhaphethi, ucango lwemoto, ifestile, ulusu lomntu okanye ezinye ezininzi. Ukwenziwa kwezi ndawo kufuneka kuthathelwe ingqalelo xa ukhetha / ukuphuhlisa i-chemistry efanelekileyo.
Iimeko zokusingqongileyo ezifana namaqondo obushushu agqithisileyo, ukufuma, ilanga elithe ngqo okanye elingathanga ngqo, ukuba sesichengeni kwiikhemikhali, ukusetyenziswa ngaphakathi/ngaphandle, njl.njl. kuya kuba neempembelelo zokuncamathela kunye nokuqina.
Amanyathelo ohlaza anokugqiba ukhetho lwe-emulsion-based (amanzi-based) adhesives phezu kwe-solvent (esekelwe kwiikhemikhali) zokuncamathelisa.
Eminye imiba ekufuneka iqwalaselwe kukuhambelana phakathi kwengubo yokuncamathelisa kunye nedyasi esebenzayo ephezulu, uhlobo lomshicileli/inki esetyenziswayo, kunye neemeko zokugcina.
Khemistry
Kukho ezininzi iinketho zekhemistri "ngaphandle kweshelufu" ezikhoyo kwindawo yentengiso. Ngamanye amaxesha, ezi khemistri zinokusetyenziswa ngaphandle kokuguqulwa. Kwiimeko ezininzi, zilungiswa kunye nezongezo zokwandisa ukusebenza kwazo.
I-surfactants inciphisa ukunyanzeliswa komhlaba ukuphucula i-rheology ye-adhesive. Oku kwenza ukuba i-adhesive ihambe ngcono kwaye inxibe ngokulinganayo.
I-Defoamers inokongezwa ukunciphisa okanye ukuphelisa amandla okuba amaqamza omoya enzeka ngaphakathi kwengubo.
I-Scents inokongezwa kwizicelo apho iphunga le-adhesive lihlolisiswa. Iimveliso zokuthambisa ezincamathelayo esikhumbeni ngamanye amaxesha zifuna into yokuncamathelisa "evumba".
tindlela
Kukho iintlobo ezininzi zeengubo kunye neendlela zokugqoka. Iimfuno ezisisiseko zibandakanya ukukhetha i-coater enokuthi ifake ubungakanani kunye nobunzima bewebhu (umqulu wezinto eziluhlaza). Icoaters ezikumgangatho ophezulu zinesantya esiphezulu kunye nolawulo loxinzelelo oluyimfuneko ekuphatheni iintlobo ngeentlobo zesubstrates. Ulawulo loxinzelelo oluchanekileyo lubalulekile xa usebenzisa iingubo kwizinto ezinqabileyo ezifana neefilimu kunye neefoyile. Ukukhetha i-coater kuxhomekeke kakhulu ngaphezu kokufaneleka komzimba. Iindlela zokwaleka ezahlukeneyo zinokubekwa ngokuxhomekeke kwisiphumo esicetywayo:
Ukugquma kweGravure kusebenzisa iisilinda ezikroliweyo ezifaka isixa esithile sokutyabeka kwiwebhu ngokuxhomekeke kumthamo wazo okroliweyo kunye neempawu zolwelo lokugquma. Iisilinda zibalwa ngencakuba kagqirha eyenza ukuba umsebenzisi asebenzise iintsimbi zokugquma ezichanekileyo nezingaguquguqukiyo kwiwebhu iphela. Iingubo ze-Gravure zisetyenziswa rhoqo ukufaka iingubo ezinqabileyo kwiwebhu. Iingubo ze-Gravure zingasetyenziselwa i-web coating epheleleyo okanye ipateni yokwaleka.
Ukwaleka umqolo oqengqelekayo ubandakanya umqulu wokupakisha ontywiliselwe kancinci kwipani yokwaleka. I-coating fluid isetyenziswe kwi-pickup roll ethi, ngokulandelayo, isebenzise i-chemistry kumqulu we-aplicator. Uluhlu lofakelo lusebenzisa ulwelo lokugquma kwiwebhu. Ubunzima bokugquma bulawulwa ngezantya zomqulu kunye nomsantsa phakathi kwe-applicator roll kunye ne-pickup roll. Umqulu wesithathu, i-backup roll, idibanisa iwebhu kwi-applicator roll kwaye ilawula ububanzi bokugquma. Le ndlela yokwaleka idla ngokusetyenziswa ukufaka intsimbi ephakathi ukuya kobunzima bokwambatha kwiwebhu.
Ukugquma kwe-deepmaterial kusebenzisa intonga ekroliweyo okanye intonga yenxeba ukulinganisa isambatho esigqithileyo esifakwe kwiwebhu ngomqulu wofakelo okanye ngqo epanini. Ubukhulu obukroliweyo okanye izithuba zenxeba kwintonga, ubukhulu okanye ubunzima bokugquma obusetyenziswa kwiwebhu. Olu hlobo lokugquma lunika amandla okwenza uluhlu olubanzi lweentsimbi zokugquma kwaye luguquguquka kakhulu xa kuziwa kwiimpawu zekhemistri ezisetyenziswayo.
I-deepmaterial coating idla ngokusetyenziswa ukufaka i-coating ebhityileyo kakhulu kwiwebhu. Umqulu olinganisiweyo usebenzisa i-coating kwiwebhu. Ubunzima bedyasi ngokuqhelekileyo bulawulwa ngesantya somqulu. Olu hlobo lokwaleka lusetyenziswa ngokuqhelekileyo ukongeza ukufuma emva kwiwebhu, ngakumbi amaphepha, ukulawula i-curl yemveliso egqityiweyo.
Kwi-Deepmaterial coating, iwebhu inomthamo ogqithisileyo wolwelo lokugquma olusetyenziswa kumphezulu. Imela ibekwe ngqo kumphezulu wewebhu kunye nomsantsa othile omitha ulwelo olugqithileyo lokugquma. Lo msantsa ulawula ubunzima bokugquma. Kwindlela efanayo ebizwa ngokuba yi-Air Knife coating, endaweni yentsimbi okanye i-polymer blade, umjelo ogxininisiweyo womoya odibeneyo usetyenziselwa ukulinganisa ulwelo olugqithisiweyo olungaphezulu kumphezulu wewebhu. Ubunzima bedyasi bulawulwa ngokuhlengahlengisa isantya somoya ophothiweyo kunye nomgama wesithuba se-impingement ukusuka kumphezulu wewebhu.
Indlela yokwaleka i-Slot Die impompa ulwelo lokugquma ngomsantsa owenziwe ngokuchanekileyo kwidayithi ukuya kumphezulu wewebhu. Ubunzima bokugquma bulawulwa ngokuguqula ubungakanani bokuhamba ngokufa okanye ubukhulu besithuba sokufa. Le ndlela yokwaleka isetyenziswa xa ukulawulwa kwesisindo esichanekileyo kunye nokuhambelana kuyadingeka.
Ukwaleka kokuntywiliselwa ngamanye amaxesha kubizwa ngokuba "yidiphu yokwaleka". Iwebhu iyantywiliselwa okanye ifakwe epanini okanye kwindawo yokugcina amanzi equlethe ulwelo lokugquma. Iwebhu ke igqithiswa kwimiqulu emibini emitha yokwaleka okungaphezulu kwiwebhu. Ubunzima bokugquma bulawulwa ngumsantsa phakathi kwemiqulu emibini kunye nesantya sokujikeleza kwemiqulu. Le ndlela yokwaleka isoloko isetyenziswa xa ukugcwaliswa kwekhemikhali yokwambathisa kwiwebhu ifuneka.
Ukwaleka kwekhethini kusebenzisa intloko yokugquma efakwe ngokuchanekileyo eyenza umkhusane wekhemikhali yokwaleka ewela kwiwebhu ehamba ngokuguquguqukayo ukuya kulwelo oluwayo lokwambathisa. Olu hlobo lokwaleka lusetyenziswa xa kufunwa iintsimbi zokwambathisa ezichanekileyo kwaye kukwaluncedo nasekugaleleni iileya ezininzi ezimanzi zolwelo lokugquma kwiwebhu. Oku kufezwa ngokusebenzisa iindawo zokubeka ezininzi kwintloko enye yokugquma, nganye inolwelo olwahlukileyo lokugquma oluqukuqela kuzo.
Ukugqiba
Ngoku ukuba i-chemistry iye yaqulunqwa kwaye indlela yokugqoka ifakwe kuyo, ukomisa inxalenye elandelayo yenkqubo. Uninzi lwee-coaters zinee-oveni ezingaphakathi ezenzelwe ukomisa okanye ukunyanga into encamathelayo. Ubushushu, isantya kunye nobude be-oveni zonke zibalwa xa kulungiswa inkqubo yokomisa. Ubushushu be-infrared busetyenziswa kwii-oveni ezidadayo ukuze zigqume ngaphandle kokuqhagamshelana newebhu. Uhlobo lwe-liner, i-adhesive, ukufuma kunye nobushushu be-ambient zonke zinefuthe elithile kwinkqubo yokomisa. Amaxesha okumisa kunye nezantya zihlala zihlengahlengiswa ngexesha lenkqubo yovavanyo. Iingubo zokunamathela zisetyenziswe ekuqaleni kwi-liner endaweni yokuthe ngqo kwi-substrate. Le nkqubo ibizwa ngokuba yi-transfercoating. Xa inkqubo yokumisa igqityiwe, i-substrate i-laminated kwi-adhesive / liner ukuvelisa umkhiqizo ogqityiweyo.
Inkqubo yokuphuhlisa iingubo zokubambelela iqala ngengcamango. Ukusuka apho, i-design-of-experiments (DoE) yenziwa njengemaphu yendlela eya empumelelweni. Rhoqo, izilingo ezininzi ziyafuneka ukuze kugqibelele ikhemistri kunye nokusetyenziswa kwekhemistri. Isiphumo sokugqibela sisisombululo sobunjineli obuphezulu esenzelwe impumelelo.
I-Deepmaterial yenza iingubo ezikhethekileyo ezisetyenziselwa ukusetyenziswa kweteknoloji ephezulu. Iinkqubo zethu zibonakalisa ukhuseleko kubumanzi, kwiikhemikhali, ukurhawuka, ukukhwela ibhayisekile ngobushushu obuphezulu, ubushushu obunyukileyo, ukothuka komatshini, njl.njl. Zisebenza 100% kwaye azinazinyibilikisi okanye izinyibilikisi. Iingubo ezisezantsi ze-viscosity ziyafumaneka kwiindawo ezivaliweyo.
