CorsAsh
Member
Registered: 19th Apr 02
Location: Munich
User status: Offline
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Anyone ever have any of this stuff? T shirts, mugs etc, all changed colour when heated?
God knows where the thought came from, its the long boring hours at work with nothing to do but think
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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i had a pen. is that good enough?
[Edited on 03-10-2006 by Robin]
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All Torque
Member
Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
User status: Offline
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I use3d to breathe on the shirts in mothercare
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CorsAsh
Member
Registered: 19th Apr 02
Location: Munich
User status: Offline
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quote: Originally posted by Robin
i had a pen. is that good enough?
[Edited on 03-10-2006 by Robin]
No, get out.
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Nismo
Member
Registered: 12th Sep 02
User status: Offline
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I used to have a T-Shirt , some lad used to have one at school and it allways changed colour on his armpits 
Swetty Betty
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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does anyone remember laughing at 'fat willy's surf shack' stickers?
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CorsAsh
Member
Registered: 19th Apr 02
Location: Munich
User status: Offline
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quote: Originally posted by Nismo
I used to have a T-Shirt , some lad used to have one at school and it allways changed colour on his armpits 
Swetty Betty
Great idea, draw attention to it
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All Torque
Member
Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
User status: Offline
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quote: Originally posted by Nismo
I used to have a T-Shirt , some lad used to have one at school and it allways changed colour on his armpits 
Swetty Betty
Sick
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All Torque
Member
Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
User status: Offline
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quote: Originally posted by Robin
does anyone remember laughing at 'fat willy's surf shack' stickers?
I have a shirt and pen in the attic
dad had a bumper sticker on his Golf
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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quote: Originally posted by All Torque
I use3d to breathe on the shirts in mothercare
did your mum have to pay for them when they disintegrated?
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Marc
Member
Registered: 11th Aug 02
Location: York
User status: Offline
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I have a T shirt thats now constantly in the heat mode. Was a guy withhis hands on his head, then when got hot it changed to a hand.
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Jambo
Member
Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline
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i used to have one years ago. But no more 
u can still buy them off ebay, was a thread a while back IIRC
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Cybermonkey
Member
Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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Hypercolor was a brand of clothing, mainly T-shirts and shorts, that changed color with heat. They were manufactured by Generra (now a division of Public Clothing Company) and marketed in the United States as Generra Hypercolor or Generra Hypergrafix and outside the US as Global Hypercolor. They contained a thermochromic (temperature sensitive) pigment made by Matsui Shikiso Chemical of Japan, that changed between two colors–one when cold, one when warm. The shirts were produced with several color change choices from the late 1980s until the early 1990s, and were predominantly tie-dye in pattern. Unfortunately the effect could easily be permanently damaged, particularly when the clothing was placed in a hotter than recommended wash.
[edit]
Principle
Color Varieties Cold Hot
BLUE YELLOW
BLUE WHITE
GREEN YELLOW
PURPLE PINK
GREY WHITE
ORANGE YELLOW
MUSTARD PINK
The color change of Hypercolor shirts is based on combination of two colors: the color of the dyed fabric, which remained constant, and the color of the thermochromic dye. The dye is enclosed in microcapsules, tiny (few micrometers in diameter) drops of liquid sealed in a transparent shell, bound to the fibers of the fabric. The liquid is a leuco form of a dye (in this case crystal violet lactone), a weak acid (1,2,3-benzotriazole), and a quaternary ammonium salt of a fatty acid (myristylammonium oleate) dissolved in a solvent (1-dodecanol). At low temperatures, the weak acid forms a colored complex with the leuco dye, interrupting the lactone ring. At high temperatures, above 24-27 °C, the solvent melts and the salt dissociates, reversibly reacts with the weak acid and increases the pH. The pH change leads to closing of the lactone ring of the dye, which then regains its colorless (leuco) form.
Therefore at the low temperature the color of the shirt is the combination of the color of the microcapsules with the color of the dyed fabric, while at higher temperatures the capsules become colorless and the color of the fabric prevails.
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CorsAsh
Member
Registered: 19th Apr 02
Location: Munich
User status: Offline
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Yes, I read that on Wikipaedophilia too.
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Jambo
Member
Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline
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[sarcasm] [/sarcasm]
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CorsAsh
Member
Registered: 19th Apr 02
Location: Munich
User status: Offline
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K17STY
Member
Registered: 13th Dec 02
Location: West Lothian
User status: Offline
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quote: Originally posted by Robin
does anyone remember laughing at 'fat willy's surf shack' stickers?
We seen a jeep the other day with one, i want one 
also had a purple/white t-shirt when i was young 
[Edited on 04-10-2006 by K17STY]
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--Dave--
Banned
Registered: 17th Feb 04
Location: Essssseeeeex Drives: Black Supra TT
User status: Offline
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I had a toy plane that changed colour
Blue when cold, pink when hot. I got sick of trying to make it hot enough so just ran it under the tap
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K17STY
Member
Registered: 13th Dec 02
Location: West Lothian
User status: Offline
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you used to get the colour changing spoons free in ice cream, giannetti or something
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boyracer2002
Member
Registered: 10th Aug 02
Location: West Yorkshire
User status: Offline
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i used to have a t-shirt about 15yr ago
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3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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sassy had the finger that went from pink to brown
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Steve
Premium Member
Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline
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quote: Originally posted by 3CorsaMeal
sassy had the finger that went from pink to brown
"   PMSLippy finger:"
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boyracer2002
Member
Registered: 10th Aug 02
Location: West Yorkshire
User status: Offline
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mav
Member
Registered: 19th Jun 01
Location: Scotland
User status: Offline
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Never owned the t-shirts but my brother had a few, orange to brown etc...you could see your sweat marks
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Robbo
Member
Registered: 6th Aug 02
Location: London
User status: Offline
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I had the yellow and green t-shirt Loved it!!
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