White shirts turning yellow

[dont_pick_up_the_phone@yahoo.com]

I have had some white shirts and white pocket t-shirts hanging in the
closet for a good while. They have "yellowed."

Does anyone know why this happens, and what is the best way to make
them white again?

Thanks

[DrClean]

<dont_pick_up_the_phone@yahoo.com> wrote in message
news:ep25i0hb0m3r5q4k7bhuc8n4umkbhd7a5c@4ax.com...
> I have had some white shirts and white pocket t-shirts hanging in the
> closet for a good while. They have "yellowed."
>
> Does anyone know why this happens, and what is the best way to make
> them white again?
>
> Thanks

It's oxydisation. You can try acetic acid neat on the area followed by a
mild bleaching, if not completely successful. Other than that there's little
you can do I'm afraid.
--
DrClean
www.DrClean.co.uk
The Best Fabric Cleaning Resource on the Web

[Vox Humana]

"DrClean" <drclean@ntlworld.com> wrote in message
news:1JEUc.231$T51.160@newsfe1-gui.ntli.net...
>
> <dont_pick_up_the_phone@yahoo.com> wrote in message
> news:ep25i0hb0m3r5q4k7bhuc8n4umkbhd7a5c@4ax.com...
> > I have had some white shirts and white pocket t-shirts hanging in the
> > closet for a good while. They have "yellowed."
> >
> > Does anyone know why this happens, and what is the best way to make
> > them white again?
> >
> > Thanks
>
> It's oxydisation. You can try acetic acid neat on the area followed by a
> mild bleaching, if not completely successful. Other than that there's
little
> you can do I'm afraid.

In the US, the Rit Dye people make some fabric treatments. You might try
one of their fabric whiteners. Here is a link:
http://www.ritdye.com/store/fabric_treatments.asp