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Crown Closures

Viscose Closures are able to offer 26mm pry-off crown corks (bottle opener required) in various different specifications of sheet thickness, lacquer systems and liner materials. The Crown Cork Closures are manufactured to the requirements of DIN 6099.

Crown Corks are produced from TFS (Tin Free Steel, EI) or ETPS (Electrolytic Tin Plated Steel) according to DIN EN 10202. Crown Corks are lacquered both sides to protect the printing inks and to all the liner to adhere to the internal closure surface. Viscose can offer printed closures produced from specialised printing inks and coatings using off-set printing. Internal printing is available (sits beneath the transparent liner) of QR Codes and Alpha-Numeric laser codes.

Tin Free Steel (TFS – E1) and Electrolytic Tin Plated Steel (ETPS) have different optical surface finishes and this is relevant when considering decoration.

TPS has a bright and shiny surface and is the choice of material when parts of the steel remain unprinted and therefore visible, or a metallic effect is requested. TFS, however, is usually applied when the print and/or lacquer completely hides the steel’s optic. Therefore, the print layout mainly determines the chosen steel specification.

The Liners are manufactured using special polyethylene compositions in accordance with European standards to ensure perfect sealing for the bottles and thus optimally protect the product. Crowns are not suitable for hot fill. The pasturisation maximum temperature and dwell time is 20 minutes at 68°C.

The Minimum Order Quantity (MOQ) for crown corks is 240k pieces, 1 UK size pallet. There are 10k crowns per carton. Each pallet has 3 layers of 8 cartons.

Viscose can supply Crowns with Oxygen scavenger Liners. Daraform 6475P can be offered with a MOQ of 1 million pieces. Daraform 6475P is a well established scavenger sealant which has been used for some time in the beer industry to prevent oxidising. BPI Free crowns are available upon request.

MOQ:1 Million Pieces Decorated
MOQ:480k pieces plain (1 pallet)
Secure Seal Test:Min. 6 bar pressure for 1min
Corrosion:Resistant against corrosion by passive film formation
Shelf Life: 1 year from production date
Top PrintingLithography printing based on customer request
The Crowns are packed in polyethylene bags in Carton Boxes. Each box consists 10,000 pcs.
Storage environment should be dry, clean, away from direct sunlight with a temperature between 10°C and 35°C and humidity under 60%.
Pallets should not be placed on top of one another.

Dimensions

  • Shell internal diameter : 26.80 ± 0.08 mm
  • Outer diameter : 32.10 ± 0.20 mm
  • Number of corrugations : 21 pcs.
  • Shell height : 5.97 ± 0.02 mm

Metal

  • Type of Metal : Stainless Steel
  • Thickness : 0.20 – 0.24 mm
  • Hardness : 57-67 HR30T
  • Quality : EN 10088/2

Liner

  • Non-Pvc Liner Profile : 923, 916
  • Non-Pvc Liner Weight : 180 ± 20mg

Download the Stainless Steel Crown Closures Data Sheet Here


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