How to Correct Nyablon

Learning nyablon shirts

Here's a little description about the system screen printing (screen printing), particularly on matters that must be considered in the process. For the record, what I describe below is just a complement to what might have been and you'll learn about the printing screen printing systems from other sources.

1.

Manufacturing / construction design (artwork)

Design (images / artwork) is very important. Good quality printouts at least greatly affected or even dependent on the quality of images / artwork that we have. The execution of the artwork is better done with the help of programs like graphics applications, such as Corel Draw or Illustrator for vector-based artwork workmanship. This will produce a sharp image and will not experience distortion when adjustments were made to size (resizing).

If bitmap program, such as Photoshop, can also be used. But the use of this program is more directed to if the artwork for printing in full color that does not allow us to use such a program was Corel Draw, and requires special techniques before it is ready artwork for feature films.
2.

Film Making

If the artwork is complete we do and are ready to print out, we can do it on a sheet of transparent film (clear). This is much better than using plain paper. Every color of the artwork will be printed in black on each sheet of what we call transparent film. For example if we have an image logo in red and blue, we separate the two colors, red color changed to black, to print out, change the color blue to black, then do a print out again. Each print out done on a separate sheet of film, will produce good quality films using a laserjet printer or class as used by film output service provider.

This is what is generally known as the separation (color separation). For more details how to make films for screen printing, see the writings Film To Sablon.
3.

Screen

A screen is a stretch of gauze or mesh (fine mesh kind) are stretched and attached to a rectangular frame (wood, aluminum, etc.).

Parts of the screen in general is as follows:

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screen frame: made of ordinary wood, aluminum or other material that is strong enough and gauze (mesh) can be stretched and glued on top (with a staple or glue) without making it change shapes. Frame sizes are varied and tailored to his small large images and materials that will be printed. The market that you can find them is uk. 30 x 40 cm, 40 x 60 cm, etc..
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Receiver screen (handle) to handle and flipping or shift the position of a screen on the table. Made of wood, plastic or metal. If the frame is made of metal screen that has a screen rail, the handle mounted using bolts so that the position can be shifted-shift according to requirement.
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Regulatory position (as the register screen). This is a tool on the screen in the printing of the long table. Kak-foot screen when we "geret" long table on the rail, then the movement of the screen will be captured when the regulator's position on the rooftop of this screen on the table. That means the screen has been located in the right position and the printing process will be conducted on such a screen position. With this tool will greatly help us to place a screen in the right position without having to figure out. Provided that all material to be printed (or other fabric) was placed on the table at the same marking, then the results will fall in the same position as well.
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Foot screen: on the side of the screen frame are made from metal usually make two holes with a drat for a place to install the long bolt that serves as a foot screen. Aside from being a "leg" so the screen can be more easily "digeret" on the rail table, can also be used as soft adjusting to set / adjust the screen height and slope position on the table.
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Rel screen: is the site for placement of the bolt handle and control the position (register) screen. Given this rail regulator receiver screen and screen position can be shifted-shift according to the needs in a way loosen and tighten the bolts. This common rail there on the screen frame made from metal (eg aluminum). With the existence of this rail, regulator and receiver screen position can be easier to handle screen removable.

On a screen frame which wood, regulatory position in the form of wood, too, that if the regulator has established its position will be nailed to the screen frame. To change its position, regulatory position or hold the screen should be released first (by removing the nails from the frame), put on a new position and nailed again. It's certainly too much trouble besides damaging the screen frame. After a few times to move the position, regulatory position will become loose and certainly affect the accuracy of placement of the screen.
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Gauze or mesh: usually made polyethylen - have varying levels of density, eg 83, 110, 125, 200, 300 ff or among those numbers. The smaller the score the more "rough" screen and petered ditail molds can produce.

To better understand how the influence of mesh density on ditail and printing and conformance to the type of ink needed an effort to try, then we can document for easy selection later.
4.

Emulsion Coatings on the screen.

This creation process is simple. What we need to do is to coat evenly on the entire surface of the gauze with photo emulsion material (usually sold in the market including Ulano brand, etc.) and then dry them. Photo emulsion is sensitive to light, particularly ultraviolet light, thereby coating processing is done in the "poor light" although it does not mean total darkness. We can use yellow lights for lighting, which does not emit UV rays that can damage the emulsion, but enough for us to still be able to see. There are different types of emulsion material for the purpose of printing inks and materials used. There is a special emulsion for water-based ink (water base), ie the adjustment of ink viscosity is by adding water. There are specific to the oil base ink, and there are also specific to a thick printout.

Materials are usually packaged emulsion composed of two different materials, namely base alloys and materials (catalyst). Both materials are simply mixed and stirred evenly when used with a comparison to the corresponding instructions on the packaging. If both materials have been intermingled, it would not be stored for a long time. This emulsion storage materials should be placed closed and protected from light, and better if stored in refrigerator. The heat also can damage or reduce the quality of the material.

Emulsion material for the coating process, we need a special tool is a kind of scoop that cater for this process, but if no one can also use rakel or other device that has a flat and smooth surface.

Emulsion coated on the outer surface of the screen evenly, then turn the screen and seal the inner surface as well, so we have enough emulsion layer thickness in accordance with printouts that we want (even this should be through the efforts of trial and error). If you want a thicker coating, the coating should be done gradually and drying prior to the first layer and so on. Drying can be done with the help of wind or dryer with enough heat. We can use a hair dryer for this drying process. For a thicker printing again, we recommend using a specialized emulsion to produce bold.

Note: to produce a mold which is slightly thicker, then the emulsion coating made up a few times. The trick is that after the first coat dried, layered again with the second layer, blow-dry, go with the third layer, and so on. Noteworthy is that determines the thickness of the emulsion layer is printed on the surface of the outer side of the screen, not the inside (where to put ink). The thicker layer of emulsion, it exposes a much longer time, so does the time penyemprotannya. In addition, the emulsion layer is too thick can lead to decreased quality printouts (smoothness or strength), unless used in the emulsion and the type of special ink that can correspond to a thick printout.
5.

Print process (Development of a screen)

If the layer has dried, we can immediately take radiation or expose. Good light is needed for this process, can with the help of the sun or radiation equipment which is usually a box-top is clear glass and a special shoot the lights in it (firing table). We can replace these lamps with multiple gunshot lampuneon but the exposure time will be slightly longer than the lights had been shot.

Place the film on the outer surface of the screen. Be sure to place the film at the position in accordance with the placement of images on print media. This can be done by checking the register on the screen with a pencil or pen, adjusted for the register marks on the film (if you sign this register will follow shot, could be closed again with ulano later). Film surface must be placed in inverted position, so that (if any) writing facing us "not legible" or call it in-mirror (unless we intentionally want to make the mold upside down).

Note: The film functions as a barrier here is a ray of the emulsion layer on a screen. Emulsion layer is exposed to light will harden, strongly attached and covering the pores screen.Lapisan exposed screens will not fall off when sprayed with or exposed to water.

Tape the film on the surface of the screen with the help isolatif nodes. Place the outside of the screen that has been plastered on the top surface of the film was shot glass desk. Make sure that between the glass and the surface of the screen there is no distance at all to avoid distortion. For this we can add a burden on the inside screen is evenly distributed and sufficient to create a screen surface is not really with the glass. If using a special firing machine table, we do not need that, because the machines usually have a special firing tables are equipped with vacuum suction for pressing the screen.

When everything is ready, irradiation can be done immediately.

The duration of exposure time depends on the emulsion material, the density of a screen and a light source that we use. Once again, these experiments also need to find a combination that really appropriate. Often, failures or problems encountered at this stage, so it's important for us to better understand it through a series of exercises and experiments. But generally the normal exposure time ranged from 3 to 5 minutes, depending on the factors mentioned above.

Radiation is completed. Spray the surface of the exterior and interior screen with water. We can use a spray that is used to wash cars or water the garden. Not too needed high-pressure spraying equipment, but just enough pressure. Spraying mainly conducted on the outer surface of the screen, while the inner surface will usually be more lenient so it is quite a bit of spraying only.

While doing the spraying, we can observe the patterns formed on the screen. Emulsion layer which fall out when sprayed to form images in accordance with the film images that we use in the process of irradiation, while the other screen will still be coated with emulsion. Area emulsion screens this fall that will be pierced by the ink to form images in accordance with the film. We can, watching whether the screen has formed a picture as it should.

For beginners, or when changing brand / type of emulsion, screens often have trouble making. Screen can be very difficult to penetrate even when using sprays pressurized water, or vice versa can be a little too soft so that the spraying could be eroded all the layers of emulsion. This caused them by the time radiation is inappropriate, improper mixing emulsions or have experienced loss of quality.
6.

Print table

Print table is a place where the material to be printed is placed in the stencil printing process. There are various printing table model, in accordance with the needs, costs, and places. Basically it is a table to sit and a long table. Of the two kinds of printing table, there are variations which is a modification / innovations of both: a table was sitting with vacuum systems, rotary table sat system, long tables and long table tilted flat.
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Table sat a table model is the most common print we find if we visit places of business printing stencil, for example in the manufacture of business cards, stickers, t-shirts, etc.. If we went along the road in East Kalibaru Last Train Statsiun Senen Jakarta or in front of Train Station Bekasi (ex cinema Parahyangan), we will see many small silk screening business that uses this table sat system. The model is simple, just a small table with the surface of the table is made of glass and there are vise (a kind of hinge claws that had to tie a screen on the desk) at the upper side of the table. By the owner, the table sat a table, besides functioning as a print, can also be used as a firing table by adding neon lights at the bottom of the table. This will help to expose the screen when the days are cloudy or rain or at night.

Table sat suitable for use in printing business cards, invitations, stickers, fabric (shirt / dress) or other material which does not use a placement print design colors that are relatively complicated. This is because the printing of the table sat a screen located in a fixed position, so that the material will dicetaklah more adjusted its position to the position of the screen.

To print a piece of cloth with the table sat, usually attached to pieces of cloth used on the carton that has been coated with special glue (such as a branded 3M). This glue has a force strong enough adhesive so that the fabric is not easy to shift, but also not easy to dry so that the fabric can be easily released back of the carton. The basic ingredients were relatively not glue will contaminate the cloth. With the aid of glue-coated paperboard that is setting the relative position of print will be easier than putting pieces of cloth printed table directly in the bag.

To print shirts so the table can be done sitting at a table with a little modification of the print, namely by making such pads (mats) for t-shirts to be printed, for example, as shown below:

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Long table

Termed long table because this table design is a rectangular-shaped elongated. Table width ranging from 80cm to 1m or more depending on demand. A long table is equipped with rails for the road and running the dryer screen. This rail mounted on a rooftop that serves as a barrier limiting the movement of a screen or a screen positioning. Tabletop can be made of thick plywood timber. On the surface can be covered with stretch fabric glued, then be coated with cement mixed with cement binder so that the layer was not cracked when it becomes dry. But without a coating with a cloth and cement was not a problem, provided that the surface of the table can be made serata and seamless as possible to avoid going the print quality is less good because of the influence of the surface of the table.

Long tables are made flat and there are also made with a sloping angle of about 60 to 80 degrees.

To facilitate the placement of printed material on the table, the table printed on the surface of such a scale lines (Ruler) from bottom to top. This scale lines printed for each specific distances in accordance with rooftop placement distance (more or less every distance from 60 to 80 cm). Finally, the table surface is coated with special glue that the market is known as the glue table. This glue has a sticking power strong enough to hold the fabric to prevent shifting, but also not easy to dry so that the fabric can then be easily removed again.

If traces of fabric fibers that attach to the table many, can be cleaned by washing with soap and water table and by using very fine sandpaper. In fact, the glue table getting a little dry (after a few weeks) can be good again after we wash with water table.
7.

Installation Screen

If the picture is a picture we will print only one color, screen placement on the table is relatively easy to print. But if our images contain more than one or many colors, we need signs printed (resgister) for placement of a screen and the results are more akurat.Setelah put a screen on the table, should do a test print. The trick is to take a piece of cloth / t-shirts (or can be replaced with paper board), set its placement on the table where natinya piece of cloth / t-shirts the other will be affixed. Adjust the screen position where the position of the image will be printed. Put a little ink on the surface of the screen. Pull and press the ink through the image on the screen onto the fabric. Note the image is printed on the cloth. Next, replace the screen for a second color. Set-arrange the position of the screen so that the color of the two later fell in the position it deserves. Tick the screen position or by tightening bolts on the regulatory position of the screen. Repeat these steps for color-3, and so on.

On the table sat printing, usually made boundaries for placement of printed materials on a table, or a day-to-day known by the term "mall" or "definitely". Accuracy and precision in the manufacture of the mall is very influential on the accuracy of the position of the prints on the material. Hence the setting is usually done by the print head or who are already experienced in the production process of silk screening.