Re: colorsync-users Digest, Vol 16, Issue 38
Re: colorsync-users Digest, Vol 16, Issue 38
- Subject: Re: colorsync-users Digest, Vol 16, Issue 38
- From: Martin Coker via colorsync-users <email@hidden>
- Date: Wed, 19 Jun 2019 11:14:35 +0100
I seem to remember blue bags being good for wasp / bee sting s. (that dates me)
Sent from my iPhone
> On 18 Jun 2019, at 20:41, Roger Breton via colorsync-users
> <email@hidden> wrote:
>
> I remember my mother would add "bluing" powder to the final rinse. I guess I
> was "destined" for color management 😊
>
> / Roger
>
> -----Original Message-----
> From: colorsync-users
> <colorsync-users-bounces+graxx=email@hidden> On Behalf Of
> Vincent Heuring via colorsync-users
> Sent: Tuesday, June 18, 2019 3:23 PM
> To: email@hidden
> Subject: Re: colorsync-users Digest, Vol 16, Issue 38
>
> Back in the day, I was a chemist for P&G. Almost all laundry detergents have
> a “brightener” added, to counteract the faint off-white cast of laundry. As
> described, they absorb UV, and emit blue, which counteracts the slight yellow
> cast of the laundry. Before the advent of brighteners, housewives would add
> “bluing" to the final rinse. Bluing was a shaker bottle of a suspension of
> blue dye.
>
> See https://en.wikipedia.org/wiki/Optical_brightener for more details.
>
> --
> Vincent Heuring Professor Emeritus Dep't of Electrical, Computer, and Energy
> Engineering
> University of Colorado at Boulder h) 73335 Pinyon St,
> Palm Desert CA 92260
> email@hidden c)720-346-4635
> http://ecee.colorado.edu/~heuring
>
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