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Green deposit on brass zipper



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"Zipper: An Exploration in Novelty"
by Robert D. Friedel
from Abe Books
or

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(your purchases make finishing.com possible)

2006

Q. Hello,

We are garment makers. we use brass zipper on some of the items. recently we shipped a consignment of jackets with brass zipper and it took about a month to reach the customer. the customer complained the zipper had green and white deposits on the zipper. the garment is made from printed material. The garment gives off a smell that seems that there was some untreated ammonia left in the fabric process.

I am attaching photos of what was found. Please help if any way to simply clean off these deposits in a safe way? we tried a small experiment on one garment by dabbing the deposit with HCl and the deposit melted away. but this is not a safe method to use on 12000 pieces.

Meherally Mahmud
- Karachi, Sind, Pakistan
^


2006

A. Don't use any acids; Good old Brasso [affil. link to info/product on Amazon] should do the needful to clean up and offer corrosion protection for some time.

Khozem Vahaanwala
Khozem Vahaanwala
Saify Ind
supporting advertiser
Bengaluru, Karnataka, India
saify logo
^


2006

A. Try 2-5% ammonium citrate solution, ph must be 8,5- 9. Immerse(min.30sec.) in hot solution(80 C) and then rinse it very well(Try it on some test pieces)! Hope it helps and good luck!

Goran Budija
- Zagreb, Croatia
^

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