DIY LED EXPOSURE UNIT

LED EXPOSURE LIGHT


DIY LED EXPOSURE UNIT

I will show you how a DIY LED exposure unit can be made simply from very low cost materials. In order to get the desired results from an LED expose unit you will need to have a good emulsion and the proper silk screen frame and silk screen mesh. Also it is important that you perform a test of the LED light source with your emulsion to see how long of an exposure time the emulsion requires to produce a sharp and easy to wash out stencil. There are various types of emulsion on the market and each of them have their own manufacturer's recommended exposure times. Making a DIY LED exposure unit can yield you the proper results if it is done correctly.

WHAT IS A LED EXPOSURE UNIT FOR SCREEN PRINTING?

An LED exposure unit for screen printing is a unit that allows you to expose photo emulsion to a UV light source. The exposure unit can be created in various shapes and sizes depending on the need of the user. an LED exposure unit is different from a traditional exposure unit because it uses LED lights as opposed to hallide or halogen lights as a light source.

WHAT ARE SOME LED EXPOSURE UNIT SYMPTOMS?

Some of the symptoms of an LED exposure unit are similar to all other exposure unit light sources. The length of time that the emulsion is exposed to light will be one of the most determining factors in those symptoms. For example, over exposing or under exposing your emulsion will result in either a stencil that washes out in areas not desired or the emulsion being too exposed and being hard to wash out your image. This is why it is necessary to perform a test on the emulsion using your LED exposure unit.


HOW MUCH TIME WILL AN LED EXPOSURE UNIT TAKE TO BURN AN IMAGE?

In order to burn an image with an LED exposure unit you will need to test the time frames. Depending on the brightness of the LED light or whether you are using UV LED's over traditional LED lights the times can vary from seconds to about 7 minutes. On average LED lights will result in exposure times that take 50% to 75% less exposure time than halide or halogen bulbs. The amount of UV light that is produced from LED is much more powerful that more traditional light sources.