There are many different types of emulsions on the market, and it can be difficult to know which one to use for screen printing. Here is a brief overview of the different types of emulsions and their characteristics to help you make the best decision for your project.
Water-based emulsions are the most commonly used type of emulsion. They are easy to work with and have a wide range of colors available. They are also the most economical option.
UV-curable emulsions are another popular option. They cure quickly and provide a high-quality print. They are more expensive than water-based emulsions, but they provide a more durable print.
Solvent-based emulsions are the most durable type of emulsion. They can withstand high temperatures and provide a long-lasting print. They are more expensive than water-based and UV-curable emulsions, but they are the best choice for high-use items such as mugs and t-shirts.
What is the difference between an emulsion and a stencil?
An emulsion is a mixture of two or more liquids that are normally immiscible (unable to be mixed). The word emulsion comes from the Latin word for milk, as milk is an emulsion of water and fat. Emulsions are formed when one liquid is dispersed in another liquid, and are stabilized by an emulsifier. Examples of emulsions include mayonnaise, vinaigrettes, and some kinds of salad dressing.
A stencil is a template used to create an image or pattern on a surface, such as cloth, paper, or canvas. The stencil is placed on the surface and paint or other medium is applied to the surface through the openings in the stencil. Stencils can be made from paper, metal, or other materials, and are often reusable.
What is the shelf life of an emulsion?
Most emulsions have a shelf life of around two years. After that, they start to break down and can become unstable. This can cause the emulsion to separate into its different parts, which can make it unusable.
Frequently Asked Questions
What is the best emulsion for screen printing?
There is no one "best" emulsion for screen printing, as each has its own advantages and disadvantages. Some of the most popular emulsions used in screen printing include Emulsion Tsunami (for bright colors), Photoshop grade emulsions (smooth prints with great detail and muted colors), and diazo emulsions (reliable and easy to wash out). It is important to consider the needs of your specific printer when making choices about which emulsion to use, as each type offers different levels of durability, color accuracy, and ease of handling.
Do emulsions need to be prepared in the dark?
Some emulsions require that you prepare them in the dark while some work perfectly when prepared in normal light conditions.
How do you print on a photo emulsion screen?
To print on a photo emulsion screen, you will need a screen, photo emulsion, and printing ink.
Does screen emulsion have a shelf life?
There is no set shelf life for screen emulsion, but some stores do not take proper precautions when storing ingredients and it's possible to introduce bacteria into the screen printing ink if you don't know what you are doing.
Can you use photo emulsion for screen printing?
Yes, photo emulsion can be used for screen printing. The photo emulsion comes in a convenient bottle that allows you to mix with ease. The photo emulsion allows you to create highly detailed stencils. Jacquard offers easy-to-follow instructions on how to prep the black emulsion.
