The quality requirements for printing on the surface of foil aluminium farmashiyaha waa: the printed text and pattern are clear and firm, and after high temperature heat sealing, the text and pattern are still clear and do not change color. The bonding fastness of the printed text and the aluminum foil is generally identified by the adhesion fastness of the ink and the initial drying of the ink. The test method of adhesion fastness is: when the surface wetting ability of aluminum foil is 32-38x1O -5 N/cm, the general gravure method is used to print the ink, or the copper rod with a diameter of 9 mm is wrapped with a steel wire with a diameter of 0.12 mm. Scrape the ink on the aluminium foil with a scraper. After the printing sample is placed for 24 hours, Ku dheji cajalad dhejis ah oo ku dheji khad, oo dib ugu rogo gadaal iyo gadaal mashiinka duuban ee duuban 3 jeer. Xawaaraha.

Waqtigaan, Lakabka qalin-ka-qaade ayaa laga yaabaa in loo hoggaansamo cajaladda cajaladda ku dhajisay oo laga jaray. Dabool qaybta la tijaabiyey ee ku saabsan wejiga milimitle ee milimitent oo leh ballac 20 mm, Tiri tirada batroolka ay degganaayeen ee meesha lakabku yahay, ka dibna tiri tirada badhamada ay degganaayeen ee ay ku yaalliin meesha ay ku taal, isticmaal a = a 1 / ( A 1 +A 2 ) X100% waxay xisaabiyaan soonka ku soo dhacaya khad. Qaaciddada: A waa Boqolkiiba deegaanka ee soonka adhesion ee khad, A1 waa lambarka geeska ah ee lakabka khafiifka ah ee lakabka ah ee baaritaanka ka dib, iyo A2 waa lambarka koowaad ee lakabka qalin-ka-galka la saaray baaritaanka ka dib. The adhesion fastness of qualified ink should be greater than 90%. Test method for the initial drying performance of ink: The initial drying performance of ink refers to the ink under certain temperature (25 ± l ℃), certain humidity (65 ± 5%) and certain time (30S) shuruudaha, due to the volatilization of the solvent, The ink layers of different thicknesses initially achieve dryness from liquid to solid.

Habka tijaabada: Prepare a clean squeegee fineness tester. Under the above temperature and humidity conditions, use a glass rod to pick up the ink and quickly drop it on the top 100um of the squeegee fineness tester. Fill the entire groove from 1OOum to zero of different thicknesses. Immediately press the stopwatch to time, when the time reaches 30S, press the 65g/m 2 drawing newspaper with a length of 160 mm iyo ballac 60 mm dhamaadka dhamaadka hoose ee mitirka mitirka xorta ah si loo daboolo dhammaan jeexjeexyada xorta ah. Duub 50-digsi oo duudduuban oo ku yaal wejiga hoose ee hoose ilaa kan ugu sarreeya.

Bannaanka ka soo baxa, Qadar cayiman oo khad ah ayaa ku dhejin doona warqadda waqtigan, Lakabka khafiifka ah ee khadku wuu qallajin karaa oo kuma dhejin doono warqadda, oo lakabka qaro weyn ayaa ku dhejin doona warqadda markii ay qallalan tahay. Laga soo bilaabo eber, cabir dhererka khadkii aan la xusin ee milimitir, oo muujiya qalalan bilowga ah ee qalinka mm / 30s.