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The Watercooler
Laundry question
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<blockquote data-quote="Marguerite" data-source="post: 59555" data-attributes="member: 1991"><p>Marg's Man here...</p><p>OK she dropped me in it so I gotta answer. </p><p>First, I quote Wikipedia under the heading "Bluing (fabric)"</p><p>(saves me having to type it all up myself)...</p><p>Bluing, laundry blue, or washing blue is a household product used to improve the appearance of textiles, especially white fabrics. Used during laundering, it adds a trace of blue dye (often synthetic ultramarine, sometimes Prussian blue) to the fabric.</p><p>White fabrics acquire a slight color cast after use (usually grey or yellow), because they can never be cleaned perfectly. Adding a trace of blue color to the slightly off-white color of these fabrics makes them appear whiter. Laundry detergents may also use fluorescing agents to similar effect. </p><p></p><p>Marg's Man's bit - these are what they call optical brighteners in the adverts. Basically it's 'fool the eye' stuff. The very slight blue tinge fools the ye into thinking a white surface is whiter than it really is. We used add a TINY amount of blue tinter (less than 2 ounces) to giant batches (6000 gallons) of white paint to get the same effect.</p><p></p><p>So now you know.</p></blockquote><p></p>
[QUOTE="Marguerite, post: 59555, member: 1991"] Marg's Man here... OK she dropped me in it so I gotta answer. First, I quote Wikipedia under the heading "Bluing (fabric)" (saves me having to type it all up myself)... Bluing, laundry blue, or washing blue is a household product used to improve the appearance of textiles, especially white fabrics. Used during laundering, it adds a trace of blue dye (often synthetic ultramarine, sometimes Prussian blue) to the fabric. White fabrics acquire a slight color cast after use (usually grey or yellow), because they can never be cleaned perfectly. Adding a trace of blue color to the slightly off-white color of these fabrics makes them appear whiter. Laundry detergents may also use fluorescing agents to similar effect. Marg's Man's bit - these are what they call optical brighteners in the adverts. Basically it's 'fool the eye' stuff. The very slight blue tinge fools the ye into thinking a white surface is whiter than it really is. We used add a TINY amount of blue tinter (less than 2 ounces) to giant batches (6000 gallons) of white paint to get the same effect. So now you know. [/QUOTE]
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