type of light to expose of diazo emulsion - T-Shirt Forums

Hi, Unregistered. | Today's Posts

T-Shirt Forums
User Name

Register Today For Free!

Forgot Your Password?

Site Navigation

+   T-Shirt Forums > T-Shirt Forums.com Announcements > T shirt Printing Issues
Having trouble making your T shirt? Post here

type of light to expose of diazo emulsion

Share This Thread Thread Tools
Old 3 Weeks Ago Sep 22, 2019 9:53:18 AM -   #1 (permalink)
Forum Member
Be nice, this is my first post :)

221screen00's Avatar
Member Since: Sep 2019
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Thanks: 0
Thanked 0 Times in 0 Posts

Default type of light to expose of diazo emulsion

hello, I'm new to screen printing and I'm having a hard time figuring out what type of light I need to use to get best results for exposures in my diy light box. I'm not finding unfiltered black light tubes available in my areas - do grow light or aquarium lights work the same? What about 'daylight' flourescents Thank you!!
Sponsored Links
Old 3 Weeks Ago Sep 22, 2019 5:03:19 PM -   #2 (permalink)
Senior Member
Certified T-Shirt Junkie

NoXid's Avatar
Member Since: Apr 2011
Location: Portland OR USA
Posts: 2,995
Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Thanks: 150
Thanked 543 Times in 517 Posts

Default Re: type of light to expose of diazo emulsion

You can buy them online. Forget any other fluorescent tube--will have too little UV.

Probably best bet these days are UV LEDs. You can buy them as long strips wound on a spool, cut to length, and solder them up to wire to a power supply. Easily found online. There are also "single point" UV LED lights, but need to research how evenly they disperse light and thus how far away they need to be and thus how powerful they need to be.

Most (all?) commercial units these days use UV LED strips. Spectrum in the high 300s to low 400s.

Search on here for "UV LED" and you'll find a fair amount of info.
How To - Calculating Exposure Time

This is a discussion about type of light to expose of diazo emulsion that was posted in the T shirt Printing Issues section of the forums.

Quick Reply
Type Your Message Below:
Do NOT Post Self Promotional URLs, Advertisements, Sales Offers or Requests. It is against our Forum Guidelines.

Register Now

In order to be able to post messages on the T-Shirt Forums, you must first register.

Please enter your desired user name, your email address and other required details in the form below.

Your username must be between 2 and 16 characters and contain only letters and numbers (no special characters like hyphens, *, ', ~, etc)
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.

A confirmation email will be sent to this address, so please make sure it is accurate and that your email software is set to allow emails from our domain: t-shirtforums.com (sometimes the confirmation email gets accidently filtered into Yahoo/AOL/Hotmail/Gmail spam folders)

You won't be able to post until your email address has been confirmed. We take your privacy very seriously. Feel free to review our Privacy Policy in a new window.
Email Address:
First Name
It's nice to be able to be on a "first name" basis with the people you talk to in a forum. This is a totally optional field; if you like being on a first name basis, please enter your first name below :)


Thread Tools

Posting Rules

Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Trackbacks are On
Pingbacks are On
Refbacks are Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT -8. The time now is 03:44 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright 2004-2014 T-ShirtForums.com. All rights reserved.