Package integrity Trình trạng đóng gói bao bì trong sản xuất sữa

Technical Service Field Service Quality AssuranceTransversal Seal Teardown... Technical Service Field Service Quality AssuranceTransversal Seal Teardown Test... Technical Service Field S

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Technical Service Field Service Quality Assurance

Package Integrity

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Package Integrity

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TBA Packaging Material

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TBA Wide/jl Packaging Material

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The Tetra Brik Sealing

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Longitudinal (LS) strips

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PPP / MPM Strip

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Longitudinal seal and products

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Conductivity Test

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Conductivity Test

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Red Ink Test

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Red Ink Test Result

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Transversal Seal

Preparation of sample

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Teardown

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Teardown

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Teardown Test

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Another example of a bad seal.

During sealing PE lumbs are pressed inside the transversal seal

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Good sealing (1)

PE Film is stretched along the seal

Sealing is stronger than packaging material

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Breakage inside the plastic layer of the packaging material

Aluminum foil becomes visible (1)

Watch the remainings

of the stretched PE film (2)

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Rupture in packaging material along the seal Combination of previous examples

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This is a ‘blocked’ or ‘cold’

seal: the blocked area is large

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Bad sealing (2)

This is a ‘blocked’ or ‘cold’

seal: the blocked area is small

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Examples (1)

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Examples (2)

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Examples (3)

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Examples (4)

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Longitudinal Seal Teardown

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The seal is acceptable since one of

the two inner coatings comes off

with the strip, leaving a ruptured

edge along the seal

The seal is acceptable since both inner coatings come off with the strip, leaving the Alu-foil bare

The seal is acceptable since the

strip delaminates (separates) when

ir is pulled off

The seal is defective if the strip comes off leaving the inner coatings

of the package unaffected

The seal is acceptable since all the inner coatings including the Alu-foil come off with the strip, although leaving paper board fibres

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Defective Longitudinal Seal

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Ink Test Longitudinal Seal

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Leaking Longitudinal Seal

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Pull Tab

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Pull Tab Test Method

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Pull Tab Test Result

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Pull Tab Seal

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Outer PE Paper Board Lamination PE Aluminum Foil Inner PE1 Inner PE2

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Package defects

1 Scratch through the inner PE layer (2)

2 Scratch through both inner PE layers (1 + 2)

3 Crack/hole in the aluminium foil

4 Crack/hole through both inner PE layers and the aluminium foil

5 Crack/hole through both inner PE layers, aluminium foil and the lamination PE Without moisture penetration

6 Crack/hole through both inner PE layers, aluminium foil and the lamination PE With moisture penetration

7 Scratch through outer PE layer

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Risk for unsterility

Outer PE Paper Board Lamination PE Aluminum Foil Inner PE1 Inner PE2

Dye Test Explanation of

Unsterility

Risk for unsterility

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Package Integrity Evaluation

Non destructive tests

Start Packaging

material splice

LS strip splice

Patch strip splice

Tab strip splice

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