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CorsAsh

Member

Registered: 19th Apr 02
Location: Munich
User status: Offline

3rd Oct 06 at 22:32

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

Robin

Premium Member

Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline

3rd Oct 06 at 22:33

i had a pen. is that good enough?

[Edited on 03-10-2006 by Robin]

All Torque

Member

Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
User status: Offline

3rd Oct 06 at 22:34

I use3d to breathe on the shirts in mothercare

CorsAsh

Member

Registered: 19th Apr 02
Location: Munich
User status: Offline

3rd Oct 06 at 22:35

quote:
Originally posted by Robin
i had a pen. is that good enough?

[Edited on 03-10-2006 by Robin]

No, get out.

Nismo

Member

Registered: 12th Sep 02
User status: Offline

3rd Oct 06 at 22:35

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

Robin

Premium Member

Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline

3rd Oct 06 at 22:36

does anyone remember laughing at 'fat willy's surf shack' stickers?

CorsAsh

Member

Registered: 19th Apr 02
Location: Munich
User status: Offline

3rd Oct 06 at 22:41

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

All Torque

Member

Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
User status: Offline

3rd Oct 06 at 22:42

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

All Torque

Member

Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
User status: Offline

3rd Oct 06 at 22:43

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

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

4th Oct 06 at 07:12

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?

Marc

Member

Registered: 11th Aug 02
Location: York
User status: Offline

4th Oct 06 at 07:29

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.

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

4th Oct 06 at 08:21

i used to have one years ago. But no more

u can still buy them off ebay, was a thread a while back IIRC

Cybermonkey

Member

Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline

4th Oct 06 at 08:23

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.

CorsAsh

Member

Registered: 19th Apr 02
Location: Munich
User status: Offline

4th Oct 06 at 11:27

Yes, I read that on Wikipaedophilia too.

Jambo

Member

Registered: 8th Sep 01
Location: Maidenhead, Drives: VXR Arctic
User status: Offline

4th Oct 06 at 11:29

[sarcasm] [/sarcasm]

CorsAsh

Member

Registered: 19th Apr 02
Location: Munich
User status: Offline

4th Oct 06 at 11:31

K17STY

Member

Registered: 13th Dec 02
Location: West Lothian
User status: Offline

4th Oct 06 at 11:37

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]

--Dave--

Banned

Registered: 17th Feb 04
Location: Essssseeeeex Drives: Black Supra TT
User status: Offline

4th Oct 06 at 11:47

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

K17STY

Member

Registered: 13th Dec 02
Location: West Lothian
User status: Offline

4th Oct 06 at 11:53

you used to get the colour changing spoons free in ice cream, giannetti or something

boyracer2002

Member

Registered: 10th Aug 02
Location: West Yorkshire
User status: Offline

4th Oct 06 at 12:13

i used to have a t-shirt about 15yr ago

3CorsaMeal

Member

Registered: 11th Apr 02
User status: Offline

4th Oct 06 at 14:24

sassy had the finger that went from pink to brown

Steve

Premium Member

Registered: 30th Mar 02
Location: Worcestershire Drives: Defender
User status: Offline

4th Oct 06 at 14:42

quote:
Originally posted by 3CorsaMeal
sassy had the finger that went from pink to brown

PMSLippy finger:"

boyracer2002

Member

Registered: 10th Aug 02
Location: West Yorkshire
User status: Offline

4th Oct 06 at 14:54

mav

Member

Registered: 19th Jun 01
Location: Scotland
User status: Offline

4th Oct 06 at 16:26

Never owned the t-shirts but my brother had a few, orange to brown etc...you could see your sweat marks

Robbo

Member

Registered: 6th Aug 02
Location: London
User status: Offline

4th Oct 06 at 18:23

I had the yellow and green t-shirt

Loved it!!

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