- PRODUCT DETAIL
Aluminium closure sheet is used for the bottle cap market. Using a unique rolling technology, TMR AL supplies aluminium sheets ideally suited to manufacture the caps for long neck wine bottles, extremely deep drawn and decorated closures, plus a range of pilfer proof caps for beverage bottles, soft drink, juice, isotonic beverage, energy beverage, and other products, such as the 30x60 mm specifications are often used in the wine and spirits segment.
Coil ID: 76mm 152mm
Surface type of Aluminium closure sheet :
a. Plain mill finish aluminum strip;
b. DOS oil lubricated finish;
c. Chromated finish;
d. One side golden/white/red/blue/black,etc other colored, other side protective lacquered;
e. both sides clear/transparent lacquered;
Advantages of Aluminium closure sheet
♦is light weight
♦is easily and economically recycled
♦has superior barrier qualities
♦has good formability
♦offers a bright finish for decoration.
Aluminium closure sheet printing process
Foundation processing(Known as a “size coat,” foundation processing is conducted to help the paint adhere better. Products that are processed using phosphoric acid chromate or zirconium are often cut.)
Exterior (interior) paint Either the public side or the product side surface may be painted first, depending on the product.
Exterior printing (The number of printing passes depends on the image to be printed on the cap).-Topcoat varnish Glossy varnish
Cutting (A single slitter method is used to cut the sheet into three equal strips. For some products, both edges are trimmed at this time).
Aluminium closure sheet pressing process
The cut printing plate is run through the press to create the cap shape (straight side walls).
The bottom edge of the formed cap is trimmed off (broken off) or curled.
Attaching the liner to the inner surface
Protrusions are formed on the sides of the cap, near the top, to prevent slippage when twisting the lid open.
Perforations are added to ensure that when the lid is twisted open, the TE band (ring) remains behind.
Fig. 1st Pressing
Leave a hat-like shape at the base of the pressing.
Fig. 2nd Pressing
At the same time as the first pressing, the hat-shaped edge is trimmed away.
Knurls are added as the cap rotates.
Fig. Perforation Perforation
Application of Aluminium closure sheet :
vial aluminium seals, aluminium tear off seal, aluminium flip - off vial seals, aluminium closures, pharmaceutical caps, pull-off aluminum cap, aluminum seal cap for injection vial,aluminum cap for injection bottle.
|Temper||Thickness mm||Tensile Strength||Yield Strength||Elongation %||Bend Radius||Hardness HBWa|
|Rm MPa||Rp0.2 MPa||A50mm|
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