Introduction

About ID Zone

Ultimate Screen Printing Service in Australia.

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Imagery

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In the front part (the one in direct contact with the light so to speak) the result was excellent,

Printing Side

one pass on the printing side

Squeegee side

one pass on the squeegee side

Motion & Interaction

one pass “to remove”, to eliminate the Excess jelly using the pan as a scraper

In this way the final thickness of the gelatin will be the correct one.

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If the thickness of gelatin is correct, the development under water will be faster (two, maximum three minutes) and all the jelly in the drawing will melt.

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Fundamental notions for preparing a screen printing frame

Hi, I’m starting to do screen printing on t-shirts and I need some explanation. How is a frame emulsified and how is it imprinted with the image glossy? I am able to print but not to prepare the frame .. Thanks a lot

Filippo, Monza

It is not easy to explain in a few lines how a screen printing frame is prepared , as it is a real “trade” that requires a lot of theoretical notions and lots of practice, especially to solve the problems and inconveniences that can be occur.

The advice is to go and read as you do on the very clear Practical Screen Printing Manual .
However, in a nutshell, these are the necessary operations :

  • with the glider pan spreads emulsion on the two sides of the frame
  • the frame is dried in a horizontal position, in complete darkness: the atmosphere can also be heated, but with a temperature never higher than 35 ° C.
  • lay the drawing, printed in positive on black and white film, ink against emulsion, side of the frame (the printing side is the external side, the one that comes into contact with the shirt, the opposite of the inner side where it is put the ink).

with a suitable presser (glass plate) the adherence between the film and the frame emulsion is improved. The sandwich thus formed is exposed to UV light for the necessary time (about 6 minutes with UV neon at a distance of 15 cm) The film is separated from the frame
the frame is washed in running water until the image appears in negative of the design the frame is dried and then used for printing.

HOME-MADE SCREEN PRINTING

Silk-screen printing is a known printing technique that uses a fabric as a matrix to transfer the ink onto a wide variety of media, such as paper, wood, fabric, glass, but much more.

The technique, known since ancient times in the Far East for decorating fabrics, became extremely popular in the arts in the 1960s. Andy Warhol, in particular, contributed decisively to his popularity: many of his works were in fact made with this technique, which allowed him to print a high number of copies of the same subject, but at the same time to obtain a print each time unique, varying pressure and inks.

The diffusion of screen printing in underground environments and in different subcultures to create posters and covers, is also due to another important factor, namely the ease with which it is possible to create a rudimentary screen-printing laboratory, together with the availability of materials.

Unlike techniques such as lithography, xylography and etching, which require more complex equipment and more expensive materials and which sometimes require caution in using them, a small screen-printing workshop can be built at home with little expense and no particular skills.

As far as the working environment is concerned, you need a table large enough to position the frame, a room that at the right moment can act as a darkroom (preventing light from penetrating), and a tub in which to wash the frame. Screen printing can be done in a more or less sophisticated way, but the absolutely essential tools are:

frame, or an aluminum or wooden frame, on which a polyester cloth is stretched;

doctor blade, tool with metal or wood handle and a rubber “blade” for
printing;

special tray to distribute the emulsion;

photosensitive emulsion;

solvent for photosensitive emulsion;

ink , even the classic acrylic colors are suitable for screen printing;
ink thinner , liquid to be mixed with the color so that it does not dry

immediately and is suitable for use on the frame;

special lamp for screen printing or garden spotlight;

sponges;

Scotch tape.

Some tools may not be familiar to those who have never experienced screen printing, however in the steps listed below will be provided more detailed information.

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Another detail that can affect development: QLT gelatin is very sensitive to white light; for this reason all emulsification, exposure and development operations must be carried out in very light.

If, during the development, the gelatin takes light, it hardens and it is impossible to completely open the lines of the drawing.

I suggest you check if what I wrote corresponds to your way of working and eventually modify it; in all likelihood the problem will be solved.

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Email

info@idzone.com.au

Phone

+61 2 9700 3000

Address

Anzac Pde., Malabar NSW 2036, Australia