In this post I will share the process of screen printing of plastic bags that we usually get in clothing store or in shopping place
Actually that's not my goal of learning screen printing. This is due to the need for plastic bags for repacking various snacks. At first I was attracted to buy masin electronic screen printing, the price is quite expensive and not comparable with my needs, let alone technically how nyablon I have not understood. Finally, it was thought to study screen printing, especially for plastics.
Initially confused to learn where. Want to learn to the neighbors who have a screen printing business, not good too. Then try to googling a screening scholar in the Blitar region, not there, kalopun ada, its location in Surabaya. Instead of confused nyari nyusan, mending absorbing science from the virtual world first.cara manual screening. especially plastic. Includes tutelengin tutorial on you tube. Because njlimet and need patience, I finally concluded studying screen printing must be to the experts and practiced directly.
before the implementation of the course, I was asked to spend the needs of screen printing:
screen T180 20 x 30 cm Rp 24.000
paint PHD red 3 200 gr Rp 17.500
Photoxol 199 200 gr Rp 13.900
rack, 17 cm plus wood Rp 3,200 / cm Rp 54.000
Other preparations, make the pattern of images to be printed on the screen and later into a picture stuck in plastic. By using corel draw, I also make a print pattern to print on the park paper. Since I do not have a laser printer, I took the picture to the setup man as well as printing on the park paper. Two pictures in one parked paper, cost Rp 11,000. So, until here the amount of expenditure as a preparation of Rp 120,400
According to the agreement, my sister and sister-in-law went to a screen printing area in the border area of blitar and kediri. Let the spirit, the first step that is done directly practice nyablon way of equipment that has been provided. It only takes patience and 'lemes'nya hand in rubbing the shelf to the screen printing field. The first scrub, with a 50% success because some of the printed images are still not perfectly formed. With painstaking, I was guided until in the rubbing about fifteen, then this hand find the pressure and rhythm that fit, to produce a very satisfactory put
The next step is taught how to make the printed ato in plastered screening language afdruk ng. In my opinion, this step is very important because it determines the result of the sshablon we make
Wash clean the screen is still new, to remove the layer of fat. Initially, poured M3 reducer fluid, then rubbed slowly. Next use the soap water colek, while rubbed while water flowed. If it is completely clean, then dried.
The next step is to coat the clean and dry screen using the emulsion generator. How to make a generating emulsion by taking a small amount of solution from a photoxol (coating) bottle poured on a glass or glucol glue pack can also, then spilled a liquid sensitizer (in a small pink bottle) one package with photoxol. The mixture is stirred until flattened until thick green.
Next pour the green emulsion onto the screen, and flatten it by using a ruler, or a coater. Polishing is flattened on both sides until completely flat. Flipped back and forth in polish. This polishing is not allowed under the hot sun.
If confirmed to be flat and all pores of the screen closed, the next step is to afdruk.
Afdruk we do not use lights, but using direct sunlight.
Preparing afdruk screen by putting the image of the park on the screen. The bottom of the screen box is given a layer of foam, on top of the screen, then the picture of the park, the top layer is glass. Please see the picture above.
When ready, take the pile out of the room directly in the sun. If the sun is very hot, it only takes 18 times the count or approximately 17 seconds. Whereas if the sun is bright and hot, afdruk afscuk his screen, with 20 counts.
Long irradiation is very important, if too long can cause the pores of the screen dead end and difficult to penetrate the paint, whereas if too short, the layer of crom is less mature. The effect of chrom solution can be dissolved during washing.
Finished radiation, the screen was washed with ordinary water. First, flush the screen using water with a sloping screen position. Next, insert water into the screen basin and let it drip until finished. Finally, spray water using a sprayer with a gentle blast.
Dry the screen using a hair dryer, or can also use a fan which of course is longer about 30 minutes.
If the screen is completely dry, then we are ready nyablon.
That's the step of learning manual plastic screening that I do. In essence, learning manual plastic screen printing requires patience, and patience at every step. The manual palmable screen printing steps above are based on what I learned during the 'course' which is not up to an hour and a half. Along with the passage of time in direct practice later, I might find new things better
@normanakbar