Tyvek Pouch Seal - Visual Inspection

P

prabhatchaddha

#11
I want to understand that why u want visual inspection of pouch seal.Making a judgement of seal just by visual inspection is not reliable at all. You have to conduct burst Test and Seal strength.Equal width seal can vary a great deal even on same struture when you will be putting them on these tests.
There is a great role of pouch making process in seal integrity
 
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R

rgjrgjrgj

#12
Hi Nimrod & DesiQE,
Likewise, I am in the process of developing a visual inspection procedure for pouch sealing. I have based my procedure on ASTM F 1886-98, but am struggling to produce good photographs of each failure mode.
Are you able to share your work?
 
R

rick76

#13
I just ran into the problem from a customer complaint the pouch seal was not horizontal instead it was sealed at an angle with few wrinkles, which was a concern from a sterility integrity customer needs to know the risks if the seal is not horizontal. I would like to know if anyone has a copy of a visual and burst test procedure?? I was planning to take the same route by implementing an inspection sheet with photos for our assemblers and q.c folks.
 
D

Denis

#14
There are two critical areas for testing tyvek pouchs.

Peel strength - this is performed by tensile testing.

Dye penetrant for visual assessment of leakage.

Both of these should form part of the validation for the heat sealer you are using.

Control of the inputs to the heat sealer should provide the assurance that the seals meet the necessary standard.

Think of heat settings ,pressure and time.
 
C

cutcoag

#15
Call Van der Stahl. They make awesome sealing and testing equipment and they'll help with the procedure. Ask for Charlie and tell him Lee Alexander says HI! You'll love these guys. they're the best of the best!:yes:
 
M

mkarlsson

#16
I came across this thread trying to search for the ASTM standards for flexible medical packaging.

This thread threw me off because in the OP there is a typo.

If anyone else is looking for the correct standard it is ASTM F1886, not 1866 (this one has something to do with plastic fittings)
 
S

Sybarite

#17
All: please keep in mind that burst testing and peel testing will not ensure package integrity for tyvek, as these methods only give an indication of seal-strength. These test methods will NOT detect pinholes in the top or bottom webs of the material.

An additional test method that may be considered here is an underwater-leak test.
 
R

rick76

#18
Thanks for the feedback, i went ahead and performed dye testing, drum testing and burst test to verify seal integrity.
 

Ronen E

Problem Solver
Staff member
Moderator
#20
Hi,

Just want some help if someone can share a copy of ASTM F1886:1998.

Thanks
Hello and welcome to the Cove :bigwave:

The policy of these forums does not welcome sharing of copyrighted materials.

ASTM offer it for the modest price of US$38.

Cheers,
Ronen.
 
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