Dear Channarong san
Good evening.
KEMT got NG sample data from Chofu ,detail as attached file and as below,
[attached data]
KOBE STEEL Chofu plant measured FT-IR data of NG sample and a reference sample inked by a Magic maker at SEWS-CT.
Both red color(NG sample and reference sample) could remove easily(P.1 and P.3).
FT-IR data of NG sample showed almost same as our red maker(P.4).
Reference sample components are
・Aromatic compound
・Nitrogen‐containing compound
NG sample components are
・Acid amide system (The film body )
・Aromatic compound
・Inorganic component
As a result, it seems that red color on NG sample caused from our red marker.
[More information]
This master coil had inserted one red marker.
We checked the marker again and found that red color had peeled off around the edge side.
Chofu tried to measure electrical resistivity , but red color peeled off easily by touching a measuring instrument.
As permanent measure, Chofu examines material of maker should be changed. New one may be inked only one side, on the other side there is colorless.
Color side contacts a film inserted materials , not material surface directly.
We deeply apologize for the trouble we’ve caused you.
Yours sincerely.
Dear Channarong san Good evening. KEMT got NG sample data from Chofu ,detail as attached file and as below, [attached data] KOBE STEEL Chofu plant measured FT-IR data of NG sample and a reference sample inked by a Magic maker at SEWS-CT. Both red color(NG sample and reference sample) could remove easily(P.1 and P.3). FT-IR data of NG sample showed almost same as our red maker(P.4). Reference sample components are・Aromatic compound・Nitrogen‐containing compound NG sample components are ・Acid amide system (The film body )・Aromatic compound・Inorganic component As a result, it seems that red color on NG sample caused from our red marker. [More information] This master coil had inserted one red marker. We checked the marker again and found that red color had peeled off around the edge side. Chofu tried to measure electrical resistivity , but red color peeled off easily by touching a measuring instrument. As permanent measure, Chofu examines material of maker should be changed. New one may be inked only one side, on the other side there is colorless. Color side contacts a film inserted materials , not material surface directly. We deeply apologize for the trouble we’ve caused you. Yours sincerely.
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