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STRIP PACKAGING
  TECHNOLOGY
Strip Packaging
Introduction




   Strip packaging is an alternative form of pack for a unit dosage.
    It is a method of enclosing the article concerned between the 2
    web of materials so that each is contained between separate
    compartment. The 2 web of material may not be necessary to be
    identical
PROCESS OF PACKAGING:

  2 webs of materials being fed between 2 heated crimpling
  rollers, on which there are circumferential cavities of a size
  and depth appropriate to the shape, size and thickness of
  the articles being packed. The material to be packed is fed
  from a hopper through channels to drop between 2 webs
  where they meet between the crimping rolls and the
  cavities. There in the webs are then sealed together by the
  activation of the thermoplastic coating on their inner
  surface and pockets formed around the contents.
STRIP PACKAGING MACHINE:
   Strip packaging machines are widely demanded for
  various packaging applications in pharmaceutical industry
  for tablets and capsules. These strip packaging machines
  are manufactured with high grade raw material by using
  latest technology. These strip packaging machines are
  available in various sizes and can also be customized as per
  the specifications
Neeru (2)
FEATURES:
   Changeable cutting arrangements
   Noiseless
   Trouble free operations
   Heavy duty electrically vibrating feeding system
   Easy change over of parts
   Sealing rolls with precise knurling

   STRIP DESIGN:
    Strip designs are very basic, as the emerging units are
    invariably rectangular or square strip. The pocket can be
    round, oval and square. The pocket area is critical to the
    diameter, shape and thickness of the product. If the pocket
    is too tight clearing, perforation of pocket or the wrinkling
    of the seal may occur. If the seal area is likely to wrinkle or
    cease then wider seals may be necessary. Generally seal
    width of 5mm and above is employed.
   CHECKING OF SEAL:
   To check that the packaging material is not perforated around
    the periphery of the pockets and the heat seals are efficient.
    Sample strips are taken at regular intervals and exposed them
    briefly, while immersed them in a water to vaccum of
    something around 680mb

   MATERIAL USED:
   Materials employing foil provides the
    best, excellent, protection provided and effective seal is
    achieved
   2 plastic plies, each with a vaxxumised foil, when laminated in
    direct contact with one another can give excellent barrier
    property.PET is very resistant to tear . Hence needs a tear
    feature .It also confers child resistant.
   One of the most widely used material with excellent moisture
    protection is paper(40-45gms),extrusion coated(12gm/m²)
   7-9 micrometer soft aluminium foil
   ADVANTAGES:
   The contents are individually protected
   Shelf life increases
   Strip of one or more items may be carried in pocket
   Child resistant
   The outer pack in the form of carton or box provides a larger area for
    printing or graphic decoration



   DISADVANTAGES:
   Strip packs occupies more space
   It is not usable by elderly and patients with arthetic fingers
   High cost variations among packaging of different number of articles
   LEAKAGE TESTING AND PACKAGE INTEGRITY:

   1.Destructive type testing:
   This type of testing equipment is based on destruction of seal by
    applying vacuum. These tests include vacuum tests under water
    and burst tests. Vacuum tests under water gives the following seal
    integrity test:
   Dip the package under test in a pot containing colored water(15-
    25 ̊C) and place the pot in the vacuum chamber.

 Apply the appropriate vacuum of 33kPa(250mm of mercury)for
strip packages or 24kPa(180mm of mercury)for blister packages ,
for 30s.Return to atmospheric pressure and remove the pot from
the pot and blot off the excess water. Examine the package for
ingress of water into the pockets.
2.NON-DESTRUCTIVE TYPE TESTING:

This type of equipment is usually based on a dry pressure
vacuum procedure followed by detection of pack distortion
(deflection) or non-distortion (non-deflection),i.e .packs with
effective seals become concave them convex as positive pressure
changes to negative pressure, while leaking packs either do not
change or show less or limited distortion, depending on the scale
of the leakage. The introduction of non-destructive tests should
therefore not only improve output , but enable better feedback
on machine performance. This also means that where seal
integrity is lost or is suspect more effective corrective actions can
be undertaken, including improvements in on-line controls.
   PINHOLES AND PACKAGE INTEGRITY:

   Pinholes is the common feature of aluminum foil. Pinholes
    normally refer to the minute holes, which may be present in
    foil. Usually the foil of 0.017mm caliper and above is
    recognized as commercially pinhole free. The foil with
    0.025mm can normally be `guaranteed', pinhole free. Foil
    below 0.017mm gradually shows an increasing number of
    pinholes. However, it has been noted that the water vapor
    permeation(WVP)of foil of 0.006mm is lower than any
    nominal gauge of plastic when used in a heat sealing
    lamination. When foil is laminated or coated the initial
    pinholes tends to be `filled in’ thus reduces any permeation
    risk till further. Permeation is then related to the plastic,
    which covers the pinholes.
   Conclusion:
   Hence , it is clear that, strip pack offers excellent protection and
    superior than reclosable packs. In general, strips are produced at
    low cost than blister packs
   Certain sophisticated machines offers high speed of strip
    packaging than blister machines

   RECENT DEVELOPMENT:
   Now-a-days with a basic question of environment friendly
    package, companies are using biodegradable materials. In this
    context, the Japanese have recently introduced silicon oxide
    coated PET over wraps. One newer material for cold forming
    used 2 thinner layers of soft foil separated by a polymer layer,
    while another has involved a double forming process
   REFERENCES:
   http://www.slideshare.net/mepradeepchauhan/strip-packaging
   www.youtube.com
   http://www.diecraftmachines.com/special_accessories_text.html
   http://www.nutricaplabs.com/strip-packaging.aspx

   PHARMACEUTICAL PACKAGING TECHNOLOGY-U K JAIN,D C
    GOUPALE,S NAYAK

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Neeru (2)

  • 1. STRIP PACKAGING TECHNOLOGY
  • 2. Strip Packaging Introduction  Strip packaging is an alternative form of pack for a unit dosage. It is a method of enclosing the article concerned between the 2 web of materials so that each is contained between separate compartment. The 2 web of material may not be necessary to be identical
  • 3. PROCESS OF PACKAGING: 2 webs of materials being fed between 2 heated crimpling rollers, on which there are circumferential cavities of a size and depth appropriate to the shape, size and thickness of the articles being packed. The material to be packed is fed from a hopper through channels to drop between 2 webs where they meet between the crimping rolls and the cavities. There in the webs are then sealed together by the activation of the thermoplastic coating on their inner surface and pockets formed around the contents.
  • 4. STRIP PACKAGING MACHINE: Strip packaging machines are widely demanded for various packaging applications in pharmaceutical industry for tablets and capsules. These strip packaging machines are manufactured with high grade raw material by using latest technology. These strip packaging machines are available in various sizes and can also be customized as per the specifications
  • 6. FEATURES:  Changeable cutting arrangements  Noiseless  Trouble free operations  Heavy duty electrically vibrating feeding system  Easy change over of parts  Sealing rolls with precise knurling  STRIP DESIGN: Strip designs are very basic, as the emerging units are invariably rectangular or square strip. The pocket can be round, oval and square. The pocket area is critical to the diameter, shape and thickness of the product. If the pocket is too tight clearing, perforation of pocket or the wrinkling of the seal may occur. If the seal area is likely to wrinkle or cease then wider seals may be necessary. Generally seal width of 5mm and above is employed.
  • 7. CHECKING OF SEAL:  To check that the packaging material is not perforated around the periphery of the pockets and the heat seals are efficient. Sample strips are taken at regular intervals and exposed them briefly, while immersed them in a water to vaccum of something around 680mb  MATERIAL USED:  Materials employing foil provides the best, excellent, protection provided and effective seal is achieved  2 plastic plies, each with a vaxxumised foil, when laminated in direct contact with one another can give excellent barrier property.PET is very resistant to tear . Hence needs a tear feature .It also confers child resistant.  One of the most widely used material with excellent moisture protection is paper(40-45gms),extrusion coated(12gm/m²)  7-9 micrometer soft aluminium foil
  • 8. ADVANTAGES:  The contents are individually protected  Shelf life increases  Strip of one or more items may be carried in pocket  Child resistant  The outer pack in the form of carton or box provides a larger area for printing or graphic decoration  DISADVANTAGES:  Strip packs occupies more space  It is not usable by elderly and patients with arthetic fingers  High cost variations among packaging of different number of articles
  • 9. LEAKAGE TESTING AND PACKAGE INTEGRITY:  1.Destructive type testing:  This type of testing equipment is based on destruction of seal by applying vacuum. These tests include vacuum tests under water and burst tests. Vacuum tests under water gives the following seal integrity test:  Dip the package under test in a pot containing colored water(15- 25 ̊C) and place the pot in the vacuum chamber. Apply the appropriate vacuum of 33kPa(250mm of mercury)for strip packages or 24kPa(180mm of mercury)for blister packages , for 30s.Return to atmospheric pressure and remove the pot from the pot and blot off the excess water. Examine the package for ingress of water into the pockets.
  • 10. 2.NON-DESTRUCTIVE TYPE TESTING: This type of equipment is usually based on a dry pressure vacuum procedure followed by detection of pack distortion (deflection) or non-distortion (non-deflection),i.e .packs with effective seals become concave them convex as positive pressure changes to negative pressure, while leaking packs either do not change or show less or limited distortion, depending on the scale of the leakage. The introduction of non-destructive tests should therefore not only improve output , but enable better feedback on machine performance. This also means that where seal integrity is lost or is suspect more effective corrective actions can be undertaken, including improvements in on-line controls.
  • 11. PINHOLES AND PACKAGE INTEGRITY:  Pinholes is the common feature of aluminum foil. Pinholes normally refer to the minute holes, which may be present in foil. Usually the foil of 0.017mm caliper and above is recognized as commercially pinhole free. The foil with 0.025mm can normally be `guaranteed', pinhole free. Foil below 0.017mm gradually shows an increasing number of pinholes. However, it has been noted that the water vapor permeation(WVP)of foil of 0.006mm is lower than any nominal gauge of plastic when used in a heat sealing lamination. When foil is laminated or coated the initial pinholes tends to be `filled in’ thus reduces any permeation risk till further. Permeation is then related to the plastic, which covers the pinholes.
  • 12. Conclusion:  Hence , it is clear that, strip pack offers excellent protection and superior than reclosable packs. In general, strips are produced at low cost than blister packs  Certain sophisticated machines offers high speed of strip packaging than blister machines  RECENT DEVELOPMENT:  Now-a-days with a basic question of environment friendly package, companies are using biodegradable materials. In this context, the Japanese have recently introduced silicon oxide coated PET over wraps. One newer material for cold forming used 2 thinner layers of soft foil separated by a polymer layer, while another has involved a double forming process
  • 13. REFERENCES:  http://www.slideshare.net/mepradeepchauhan/strip-packaging  www.youtube.com  http://www.diecraftmachines.com/special_accessories_text.html  http://www.nutricaplabs.com/strip-packaging.aspx  PHARMACEUTICAL PACKAGING TECHNOLOGY-U K JAIN,D C GOUPALE,S NAYAK