Daabacaadda walxaha isku dhejiska ah ee filimku waxay keeni kartaa caqabado, iyo dhiig-baxa khadku waa dhibaato caadi ah oo ay la kulmaan shirkadaha daabacaadda. Dhibicda khadku waxay tilmaamaysaa adkaanta liidata lakabka khad ee daabacan ee dusha walaxda oo ay ugu wacan tahay arrimo ay ka mid yihiin kacsanaanta dusha hoose, daawaynta UV oo aan ku filnayn, iyo khad lagu daro oo xad dhaaf ah. Khadka daabacaadda daran ma saameynayo oo kaliya tayada alaabta, laakiin xitaa waxay keenaysaa in la xoqo dufcadaha alaabta. Maqaalkan, Waxaan sahamin doonaa saddexda sababood ee ugu sarreeya ee keena dhiig-baxa qalinka ee filimka daabacan ee qalabka is-xabaga ah waxaanan bixin doonnaa xalal wax ku ool ah si looga gudbo dhibaatadan.
1. Xiisad hoose oo hoose ee alaabta filimka
Mid ka mid ah sababaha ugu muhiimsan ee dhibco khad ah oo daabacan oo ku salaysan filim ku salaysan walxaha is-xabaga ah ayaa ah xiisadda dusha hoose ee filimka.. Guud ahaan hadalka, korodhka kacsanaanta dusha sare, sida wanaagsan ee xajinta khad daabacaadda ka dib. Wax dhib ah kuma laha xiisadda dusha sare ee alaabada warqad u eg, laakiin xiisadda dusha sare ee walxaha filimka u eg ayaa inta badan aan sinnayn. Xiisadan hoose ee dusha sare waxay u horseedi kartaa ku dheggan khad liidata, taasoo keeni karta in dhibicda khadku hoos u dhacdo iyo tayada daabacaadda. Haddii uu jiro khad lumay inta lagu jiro habka daabacaadda, waxaad isticmaali kartaa qalin dyne ah si aad u tijaabiso qiimaha xiisadda dusha sare ee maaddada. Guud ahaan hadalka, agabka leh culeyska dusha sare ka hooseeya 38 datones waxay u nugul yihiin luminta khad. Si arrintan loo xalliyo, tixgeli xalalka soo socda:
A. Daaweynta dusha sare: implement the surface treatment process to enhance the surface tension of the film material. This can be achieved by corona treatment, flame treatment or plasma treatment, which can change the surface characteristics, increase wettability and promote ink adhesion.
B. Primer coat: Apply a suitable primer coat to the film material prior to printing. Primers help create a bond between the ink and the surface of the material, improving ink adhesion and reducing the chance of ink dripping. Consult your coating supplier to select a suitable primer that is compatible with the film material and ink formulation. Some professional label printing companies will also directly use coated PET self-adhesive materials for printing. The coating changes the surface wetting characteristics of PET self-adhesive materials, waxqabadkuna waa mid deggan, iyo adkaanta lakabka khad si wax ku ool ah ayaa loo wanaajin karaa.
2. Daawaynta UV oo aan ku filnayn
Daawaynta UV oo aan ku filnayn waxay sidoo kale horseedi doontaa dhibco khad marka la daabacayo nooca filimaanta walxaha isku dhejiska ah. Daawaynta aan dhamaystirnayn waxay keeni doontaa lakab khad ah oo aan gaadhin qallafsanaanta ugu wanaagsan iyo dhejinta, taasoo keentay in si xun loo dhaqmo. Daawaynta aan dhamaystirnayn waxay ka dhigan tahay in lakabka sare ee qalinka daabacaadda la qalajiyey lana daaweeyay, laakiin gudaha ayaan si buuxda u bogsan. Khadka lumay ee ay sababto xaaladdan oo kale waxay inta badan ku dhacdaa daabacaadda qaababka ballaaran ee aagga. Tani waa sababta oo ah qaababka aagga weyn waxay isticmaalaan qadar badan oo khad ah, iyo gudaha lakabka khad ma fududa in si buuxda loo daweeyo. Si arrintan loo xalliyo, waxaad tixraaci kartaa xalalka soo socda:
A. Xoogagga UV iyo qiyaasta: Hubi in nidaamka daawaynta UV si sax ah loo habeeyey oo keenaya xoojinta iyo qiyaasta UV ku filan. La soco oo hagaaji heerarka xoogga UV si loo gaaro daawaynta ugu wanaagsan khad gaar ah iyo walxaha filimka la isticmaalayo. Tusaale ahaan, Qaababka madow waxay nuugaan iftiin badan oo UV waxayna badanaa u baahan yihiin awood dheeraad ah si ay si buuxda u engegaan. Kala tasho khadadka iyo soosaarayaasha qalabka si aad u heshid cabbirada daaweynta UV.
B. Waqtiga daaweynta iyo heerkulka: wanaaji wakhtiga daawaynta iyo goobaha heerkulka si loo hubiyo soo-gaadhis ku filan oo loo hubiyo in lakabka khadku si buuxda u bogsaday. La tasho tilmaamaha soo saaraha khad ee lagu taliyey cabbirada daawaynta oo u hagaaji si waafaqsan shuruudaha daabacaadda iyo qalabka loo isticmaalo.
C. Nolosha adeegga ee nalalka UV: Hadda, nolosha adeegga nalalka UV ee qalabka daabacaadda toppan waa inta u dhaxaysa 800 iyo 1000 saacadood. Haddii nalalka aan la beddelin marka nolosha la qiimeeyay la dhaafo, Way fududahay in khadku qallalo. Sidaa darteed, marka la bedelayo tuubada laambadda UV, waa lagama maarmaan in la sameeyo diiwaanno faahfaahsan, iyo marka tuubada laambadda UV gaadho nolosha adeegga, waa in lagu badalaa waqtiga.
3. Khadka xad dhaafka ah lagu daro
Jiritaanka waxyaabaha khad-ku-darka ah ee xad-dhaafka ah waxay keeni doonaan dhibco khad marka la daabacayo nooca filimaanta walxaha isku dhejiska ah. Habka daabacaadda, khad daabacaaddu waxay inta badan la kulmaa dhibaatooyinka dhumucda, viscosity sare iyo khad liidata. Sidaa darteed, hawl-wadeenno badan ayaa dooran doona inay ku daraan varnish si ay u hagaajiyaan dareeraha khad daabacaadda. Si kastaba ha ahaatee, haddii cadadka varnish si khaldan loo isticmaalo, Aad bay u fududahay in la saameeyo viscosity khadka, kacsanaanta dusha iyo waxqabadka adhesion, taasoo keentay dhibic khad. Fadlan tixgeli xalalka soo socda si aad u xalliso arrintan:
A. Qaababka Khadka: Dib u eeg oo hagaaji qaabaynta khad iyada oo ujeedadu tahay in la yareeyo isticmaalka xad dhaafka ah ee lagu daro. Maadaama aysan dhammaan agabka oo dhan si fiican ugu habboonayn khadadka, Helitaanka khad saxda ah waxaa sida ugu wanaagsan loo gaari karaa iyadoo si dhow loola shaqeeyo alaab-qeybiyaha khad si loo horumariyo qaab-dhismeedka qalinka oo dheellitiraya qalabka khad isla markaana yareynaya khatarta dhibcaha khad.
B. Tijaabada waafaqid: U dir alaabta alaab-qeybiyaha khad si uu u tijaabiyo si loo hubiyo in wax-ku-darka qalinka ee la isticmaalay uu la jaan qaadayo shayga filimka iyo habka daabacaadda. Tijaabada iswaafajinta ayaa lagu sameeyaa inta u dhaxaysa khad iyo agabka filimka si loo go'aamiyo wax kasta oo is dhexgal ama iswaafajin ah oo sababi kara dhibco khad. Tijaabi qaababka khad ee kala duwan oo hagaaji heerarka wax lagu daro si aad u heshid isku dhafka ugu fiican ee bixiya adhesion wanaagsan iyadoo la yareynayo dhibicda khad.
Gabagabo
Overcoming the challenges of ink droplet printing in film-based self-adhesive materials requires a multifaceted approach. By addressing the causes of low surface tension, insufficient UV curing and excess ink additives, printers can significantly improve ink adhesion and achieve better print quality. Implement surface treatments or primer coats to enhance surface tension, optimize UV curing parameters to achieve full ink cure, and fine-tune ink formulations to minimize the use of excess additives. By adopting these solutions, manufacturers can overcome ink drop challenges and produce high-quality prints on film-based self-adhesive materials.
