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Black Light and How Some of our Threads React 

Many longarm machines offer a Black Light option when quilting which allows the quilter to see certain threads better.  What makes some dyed threads "glow" under a black light?

Superior Threads Chemistry 101 - A black light (bulb, LED, or tube) gives off ultraviolet light which happens to be highly energetic. The human eye can't see this light of the spectrum.  (This is perhaps why it became known as "black light".) Fluorescent substances absorb the ultraviolet light and then re-emit it almost instantaneously. Threads which are dyed with fluorescent pigments or threads which are bright white will absorb the black light and reflect it back in a wonderful glowing sheen.

Here is a selection of our threads viewed under standard fluorescent light

Severl Black Light reactive threads by Superior Threads

And the same thread selection viewed under a black light

Black Light Threads reflecting shine by Superior Threads

Here is a list of our threads that glow under a black light:

Bottom Line #621
Kimono Silk #373
King Tut #993
Magnifico #2001, 2006, 2007, 2051, 2088, 2096, 2101, 2102, 2109, 2191 through 2200
MasterPiece #186 
NiteLite ExtraGlow   Blue, Green, Yellow, Pink, Purple, & White
OMNI #3001, 3160
Rainbows #841
So Fine #30 #1135, 1136, 1138, 1140, 1141
So Fine #50 #451
SuperBrights #726, 741 through 750
#30 Silk #401
#50 Silk #401

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By: Bob Purcell