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Vintage Star Wars Collecting
Toy Of The Week
SWTOTW, Week 14, 2019, Part 1/2, Ugnaught
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<blockquote data-quote="Snaketibe" data-source="post: 508981" data-attributes="member: 7379"><p>Beautiful pair of figures Jay. Thanks for sharing <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Regarding the purple smock / bib discolouration, one thing I find striking is that I have not yet seen a purple one carded. Absence of evidence is not evidence of absence, and therefore the fact that I personally have never seen one does not of course mean that they definitely don't exist. However, it is curious and it also lends at least a little weight to my own personal hypothesis that the discolouration of some smocks from blue to purple is probably due to oxidation of the dye, since if a figure is still sealed on its card (even if there is a tiny slit / gap at the foot of the bubble), very little gas exchange can occur and hence the blue smock is exposed to very little oxygen and hence oxidation of the dye will be extremely limited.</p><p></p><p>However, take the figure off the card, and bingo! As much oxygen as you like can flood all over the smock and react with the dye, if that particular dye is one which readily oxidizes.</p></blockquote><p></p>
[QUOTE="Snaketibe, post: 508981, member: 7379"] Beautiful pair of figures Jay. Thanks for sharing :-) Regarding the purple smock / bib discolouration, one thing I find striking is that I have not yet seen a purple one carded. Absence of evidence is not evidence of absence, and therefore the fact that I personally have never seen one does not of course mean that they definitely don't exist. However, it is curious and it also lends at least a little weight to my own personal hypothesis that the discolouration of some smocks from blue to purple is probably due to oxidation of the dye, since if a figure is still sealed on its card (even if there is a tiny slit / gap at the foot of the bubble), very little gas exchange can occur and hence the blue smock is exposed to very little oxygen and hence oxidation of the dye will be extremely limited. However, take the figure off the card, and bingo! As much oxygen as you like can flood all over the smock and react with the dye, if that particular dye is one which readily oxidizes. [/QUOTE]
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Vintage Star Wars Collecting
Toy Of The Week
SWTOTW, Week 14, 2019, Part 1/2, Ugnaught
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