Find the Latest Signage and Marketing Ideas, Help for making Signs,
Outdoor or Indoor, Web or online marketing, SEO and lots more.

 
Go the the start page of Australia Signs
Instant Size &
Price Quotes
See an Australian Sign
We have made near you
The best way to see
work made online
See videos of signs
being made and help
Full Color, Full Size
Australia Wide
Find products Fast
Online Colors and Pantone
Information Numbers
See an Australian Sign
We have made near you

Over 1500 photos and sign ideas all made direct for business.


   Marketing Ideas
Start Page
   - - - - - - - - -
This Month Special
    Discounts & more!
Marketing Ideas
   This is where the
   powerhouse ideas
   are!
Ideas for Signs
   If you want to
   know how to get
   the most from
   your signs...
   it's here
All Time Favorites
   By read volume.
Staff Tips, learn
   more about trade
   stuff here from
   our staff posts
Important Links,
   Great pages about
   the online service
   from us
What Is? Here we
   show you exactly
   what things mean
Custom Tutorials,
   learn more from
   the art dept, sign
   makers and others
Color Kitchen,
   everyone want to
   get the most of
   colors
RSS Help
   Learn how it will
   Help you more
Trash Can, see
   why your post
   might be here
 

You can talk directly with a sign designer or graphic artist, signmaker or technician here.



Ideas - SignTalk - ATF - Staff Tips - What Is - Tutorials - Colors - RSS Help - Top 40

Signage and Marketing Ideas Centre

Marketing Ideas Centre / 6. What is ? /
What is Emulsion Up ?
Author Message
sign maker
Member
#

What is Emulsion Up ?

Intro

When preparing screen printing, and in particular for large panel sizes, the high intensity light exposes an light sensitive solution that is applied to the screen. This cures the silk screen where ink should pass through AND where it should not, the solution sets hard, not allowing ink to pass through.

This is how screen printing works, areas where the hardended solution is set, protects the silk and only allows ink onto the sign where areas are not hardened. e.g. The letters are washed clean and the hardened solution is a non penetrable background.

Answer

Emulsion UP is the chemical on the clear artwork film and nothing to do with the silk solution. Because sometimes screenprinting signs can be 3000 mm long, the artwork clear film may upto 2mm thick so as not to get handling creases etc. The mesh density may be coarse etc. So the Emulsion on the Artwork Clear Film is set to UP.

-----------------

To create / make a silk screen, a thin clear polyester film with artwork (just like a polaroid negative) is overlaid onto the silk with the chemical emulsion closest to the silk.

Although very thin, the black areas of the film can be one face or rear.

Screen printing uses Emulsion UP so that when exposing the artwork film onto the silk, there is no thread shadow, AND that none of the silk cross threads create light bending.

Shadowing is caused because/when screen printing panels is very large and the distance/time from the exposure light and the silk can sometime be longer than 10 minutes.

So, by asking the film bureau to supply the artwork emulsion UP, you are ensuring that any long exposure times do not create a 'fuzzy' edge around letters, borders etc.

I'll take a photo of the next big film layout and post it here for you.

What is Emulsion Down ?

Offset printers and other printing equipment may use Emulsion Down for the opposite reasons as to a screen printer. In their case, they want the artwork exposed onto a plate. This means that by using an Emulsion Down, they have no shadowing. They may also use such terms as Right Reading, Negative read etc.

Always ask your preferred printing company which suits their machinery FOR EACH JOB as they may switch from machine to machine depending on size, material etc.

TIP: Throughout our site, when you see a small image, click to view more details about signs banners, laser, LED, letters and over 300 products for business advertising outdoors and indoors.
 
See what me make for our customers online Australia Wide at our Signs Gallery Making signs for Melbourne Brisbane Perth Adelaide Canberra Hobart Darwin.
One low price Australia wide!

 

 

Online Sign Writing by Australia Signs

Tip: If you want to see the full range of work that Australia Signs has made via the internet, go to the Gallery, All the pics are categorized for quick view.

If you haven't yet seen all the advantage having your own RSS Reader gives, you can download a program we trust here. It's amazing.

< Back | Next >  

Summary: We hope you enjoy our new Marketing Ideas Centre and that it gives you lots of fresh marketing ideas.. easy, you can even add your own tutorials, videos and links!

  Call all over Australia- Australia Signs & Australia Banners Tel: 1800 815 166