How to prevent pure silver metallization from polyester film?

FRIENDS,
WE HAVE DONE PURE SILVER METALLIZATION ON 12 MICRON POLYESTER FILM. BUT ALL SILVER OXIDATION FROM POLYESTER FILM. SO HOW TO PREVENT PURE SILVER METALLIZATION FROM POLYESTER FILM.

I AM USING THIS FOR CUT METALLIC YARN (LUREX).

SO IF YOU GUYS HAVE ANY SUGGESTION THAN please INFORM ME.

WE HAVE ALSO COATING MACHINE. SO IF WE NEED TO QUOTE ANY CHEMICAL WE CAN DO IT.

WAITING FOR REPLY.

Ed. note: We cannot understand your inquiry, Mit. Hopefully someone else will, but if you get no response, it may be because people don't understand you.

Q. hi freinds

I have a problem of pure silver oxidation when coated on glass.
Please tell me how to prevent this oxidation.

Thanks for all
Richard