Blister FoilsRaviraj Foils Limited manufactures a range of hard Aluminium Foil suitable for blister packing of Pharmaceutical Products such as Tablet, Capsules, etc., with the following general specifications. The final product specifications are made as per agreed contract with the customers.
Foil Material
Hard aluminum alloy AA 8011/ AA 1200 confirming to Aluminium Association specification.
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Standard Foil Gauge Options
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Tolerance (+/- 8%)
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0.020 mm
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+/- 0.0016 mm
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0.025 mm
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+/- 0.0020 mm
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0.030 mm
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+/- 0.0024 mm
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Heat Seal Coating
Colourless Vinyl Resin (option for tinted resin available) confirming to the applicable Government regulations regarding direct contact with medicines and drugs. The resin is suitable for heat sealing to PVC/PVDC coated PVC films.
Coating thickness options
(a) 4 - 6 GSM with a tolerance of +/- 0.5 GSM
(b) 6 - 8 GSM with a tolerance of +/- 0.5 GSM
Standard, if not specified, heat seal coating GSM is 4 with a tolerance of +/- 0.5.
Seal Strength with PVC/PVDC: 8 N/25 mm min.
Printing & Lacquer Coating
Printed as per text, layout and shade approved by customer. For non-printed specification, clear lacquer to be coated as a protective coating and good printability. Printing inks and lacquer coatings are capable to withstand 180 deg. C for 1 sec. dwell time.
Configuration
Printed and Unprinted Blister Foils are available in the reel forms. Unprinted blister foils are also available as Jumbo roll.
Winding Direction
Generally, printed or clear lacquer side is out in the finished reel.
Core
Material options:
- (a) Plastic
- (b) Aluminium
- (c) Card board
Core ID: 76 mm +/- 0.5 mm
The length of the core is equal to the width of the web.
Splices: Butt type made with 25 mm pressure sensitive tape.
Reel Outer Diameter:
250 +/- 10 mm for Slitted Material
400 +/- 10 mm for Jumbos Rolls
Reel Wander: Within +/- 1 mm
Reel / Web Width
Unprinted: 45mm to 900 mm with a tolerance of +/- 0.5 mm
Printed: 45mm to 600 mm with a tolerance of +/- 0.5 mm
Joints Per Reel: Maximum 2. Average less than 1.
Pin Holes
0.025 and 0.03 mm foils are free from pinholes.
0.020 mm foil, 40% of foil is free from pinholes,
Rest less than 10 PSM.
Identifications
Each reel shall be identified with a sticker pasted inside the core with Reel number, Specification, Net weight, Gross weight, Operator number & Date of manufacture.
Packing
Blister foils are packed in cardboard carton.
Relevant markings are provided in each outer package.
Recommended Operating Conditions
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Sealing temperature
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170 to 180 deg. C
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Sealing pressure
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2.8 to 5.6 Kg/Sq. Cm
40 to 80 lbs/Sq. Inch |
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Dwell time
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0.25 to 0.5 sec.
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Covering Area of 1Kg Finished Material (Nominal)
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Guage & Temper of Foil
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Covering area in Sq.M/Kg with 4
GSM nominal Heat Seal Coating |
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0.02 (hard)
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17.18
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0.025 (hard)
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13.94
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0.03 (hard)
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11.72
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Table Showing Thickness Tolerances of Foil
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Foil gauge
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Thickness (mm)
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GSM
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Min.
(-8%) |
Nominal
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Max.
(+8%) |
Min.
(-8%) |
Nominal
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Max
(+8%) |
| 0.020 mm |
0.018
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0.020
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0.022
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49.9
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54.2
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58.5
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| 0.025 mm |
0.023
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0.025
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0.027
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62.33
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67.75
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73.17
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| 0.030 mm |
0.028
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0.030
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0.032
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74.80
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81.30
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87.80
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Test Certificates
Test certificates giving the actual observed values of different parameters would accompany the supplies.
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