Re: Coating emusion under an 11 watt energy saving bulb
When you say 11 watt energy-saving bulb, you mean a spiral fluorescent screw-in type? That would more than likely put out very little UV, you should be ok.
Why not just go buy another yellow bulb?
Re: Coating emusion under an 11 watt energy saving bulb
Thanks yu so much for your reply's really appreciate it!!! ah yes good idea..paper bag! the bulb only blew tonight just as i was about to coat ready for exposing and printing tomorrow for deadline so i havent got time to buy another unfortunatly, and the only other low light bulb i have is 11 watt bayonete type twist and click in place type bulb that is oblong energy saving type,,,sorry about the descrption
Re: Coating emusion under an 11 watt energy saving bulb
i would just go get another bulb. Because if you coat those and then try and burn them to find out that your 11w didnt work and they are exposed... then you have wasted even more time.
Re: Coating emusion under an 11 watt energy saving bulb
You can go down to your local store and pickup a red light. They work awsome.
Also you can coat your screen in the light. The emultion doesnt get light sensitive untill it dryes. So if your coating 20 screens or less open a door up and coat away.
You can go down to your local store and pickup a red light. They work awsome.
Also you can coat your screen in the light. The emultion doesnt get light sensitive untill it dryes. So if your coating 20 screens or less open a door up and coat away.
If you have a choice, walk past the red lamps and buy a yellow or gold lamp that will emit much more visible light than red.
11 watts is the amount of electricity the bulb uses - and doesn't describe output. Look on the label for lumens, not miles per gallon.
'denck' has written the most helpful point -water in wet emulsion will inhibit exposure for the 2 minutes you are actually coating. Coat, then store & dry in the ultimate safe light, the dark.
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How are you measuring? retired Ulano Technical Support Screen printing since 1979 - SGIA Academy Member
After I stomped on Darin yesterday, a friend called me and asked why are 'bug lights' safe? Or for Darin and the rest of the readers, why not red?
1. Electricity in any incandescent bulb heats the filament, it visibly glows and generates lots of invisible infrared energy and visible light at the red end of the electromagnetic spectrum.
2. A red bulb filters out most of the visible spectrum, (so that willeliminate the blue/violet/invisible UV-A end), but you can't see much when so much of the visible spectrum isn't emitted. OK, red will work, but it's harder to see things in red light.
3. "bug lights", high-pressure sodium, gold fluorescent have very, very little blue & UV light but the rest of the spectrum makes it easier to see things in your screen rooms. 90% filtered vs. 80% transmission.
4. Bees and most insects, actually use the shorter blue and near ultraviolet (black light/UV-A) wavelengths of the electromagnetic spectrum, so commercial bulb makers have products specifically designed not to emit UV energy - the bug light. There are some red 'party' bulbs, that are not as available as bug lights and aren't made for any real function, but then we return to the fact that they also emit much less visible light spectrum than gold/yellow bulbs regardless of lumens.
750 lumen 10,000 hour CFL bug light
__________________
How are you measuring? retired Ulano Technical Support Screen printing since 1979 - SGIA Academy Member
Last edited by RichardGreaves; April 24th, 2009 at 07:34 PM.
Re: Coating emusion under an 11 watt energy saving bulb
Wow If thats a NY stomp down I'll take it
"(If you have a choice, walk past the red lamps and buy a yellow or gold lamp that will emit much more visible light than red.)"
But I thank you for the second
"('denck' has written the most helpful point -water in wet emulsion will inhibit exposure for the 2 minutes you are actually coating. Coat, then store & dry in the ultimate safe light, the dark.)"
Coating emusion under an 11 watt energy saving bulb 
got deadline friday night aargghh!! My 25 watt yellow coated bulb blown 
