When I used screen washing water to wash the screen plate, why did I wash off the photosensitive adh

There is a boiling oil and water called IP783, which is the thinner that the landlord said.

Referred to as it (slow drying), it is generally used to clean the screen after oil mixing and silk screen printing.

There is also a name called cyclohexanone, referred to as quick-drying, which is generally used to quickly clean the stencil in silk screen.

The above two are professional net washing water, as for the landlord's situation, then maybe the landlord's net is defective.

There is a boiling oil water called IP783, which is what you call a thinner, we refer to it as (slow drying), which is generally used to clean the stencil after oil mixing and silk screen printing.

There is also a one called (cyclohexanone), which we refer to as quick drying, which is generally used to quickly clean the stencil in silk screen.

Both of the above are professional net washing water, as for the kind of situation you said, then maybe your net is defective.

If you don't understand.

There are two reasons, one is that the screen ** time is not enough or the photosensitive paste is expired. 2. There is a problem with the quality of the net washing water, which is generally composed of chemical components such as propylene copper and dimethyl benz. In order to make profits, some businesses have the problem of the proportion of net washing water. will lead to such a result.

Common methods for removing photosensitive adhesives:

Use cyclohexanone and xylene 2:1 to prepare the solvent, and gently scrub it with a cloth dipped in solvent, two or three times.

Ammonium chloride is removed using a professional release solution.

Use boiling oil and water with IP783 and dilute to remove.

Photosensitive adhesive will fall off, a variety of reasons will cause similar situations, **the amount is not sufficient, there is no second**, there is an imported screen needs pre-press degreasing treatment, the main reason is so much, wash the plate attention, do not wipe the screen too hard, especially the printing surface of the screen.

Your net washing water is a solvent, right?

Water ** light glue is not solvent resistant, and strong solvent washing net water is generally used to clean ink.

The gelatin you print should be a water-based slurry, so use water** light glue.

If you have to use solvent wash water to clean the stencil, you can harden the stencil with a film firming agent before printing.

You can achieve the effect of strengthening the stencil, so that it will generally not be washed off again.

Friends, please take a look at whether your photosensitive adhesive is oily or water-based, if it is oily, then you are not good quality photosensitive adhesive, insufficient exposure time or no secondary exposure!If the photosensitive glue is water-based, it is a disposable, of course, it can be wiped off, and the smooth glue is to be strengthened and squeezed! ）

The photosensitive adhesive is easy to fall off when you do not meet the standard when you expose the plate, and I can solve the problem of silk screen printing for you.

1 Is photosensitive paste oily?

2 **Insufficient.

3 Is the wrong solvent used?

The reason why the photosensitive adhesive of the silk burning brother screen cannot be washed off: the photosensitive adhesive is not completely dried during baking, the amount is insufficient, the second time is not carried out, or the water-based screen is not treated with a reasonable solid film. Recommended Cleaning Method:

Wipe the stencil repeatedly with a release solution or soak it directly for a period of time, and then rinse it out with a high-pressure water gun. If there is a residue, it can be treated again and the concentration of the release solution can be increased. However, it is important to remember that if the screen with residual photosensitive adhesive is used again after the squeegee is used, it will be difficult to clean up the previous residual photosensitive adhesive.

This problem is relatively common and not difficult to solve.

1.After gluing, it must be fully dried, and the drying temperature should not exceed 40-45 degrees Celsius. Too high drying temperature is easy to grip the mountain and cause dark sensitivity.

2.The photosensitive time must be correct, and insufficient content can easily cause poor fastness of the screen.

3.The fixed mesh (or hard mesh) liquid must be wiped all over the front and back sections and thoroughly dried (preferably in the sun) before rinsing.

Your problem should be that air drying is insufficient, because natural air drying is very unreliable, and this is especially noticeable when the humidity in the air is high, such as on rainy days. This problem has little to do with air-drying for 6 hours, you have to find a way to make your own oven, otherwise the problem will never be solved.

I don't know what color paste you want to print, if it is all oil-based color paste, you must use oil light glue, if it is a water-based color paste, then you need to use water light glue, if you want to print oily and water-based color paste, then you need to use water and oil photosensitive glue. There are many brands of photosensitive gels, such as Jingcheng, Murakami, etc. It's true that you rarely hear this sign.

According to what you said, if the sunliquid ant guessed that the attack of the prison is so bad, it means that this glue can't be used.

How to wash the screen after silk screen printing:

Hole opener, also known as screen printing ink cleaning agent, is made of surfactants, dissolving agents, penetrants, rubber anti-aging agents and other additives and other refined compounds, raw materials are imported, using advanced production technology and production technology, this product has the advantages of room temperature application, high efficiency and energy saving, thorough cleaning, fast drying, etc., widely used in the screen printing industry.

Scope of use. It is specially used to clean all kinds of mechanical printing, screen printing, imported, domestic rotation, sheet-fed lithographic printing machine, proofing machine, iron printing machine (heat-curing ink), light-curing UV ink special products, can completely replace gasoline, kerosene.

Another: The method of wire mesh washing screen:

1 The wire mesh can be washed with 5-10% glacial acetic acid solution for 5 minutes, and then all residual liquid can be washed off with hot water;

2 Hold the wire mesh directly through the gas flame or Bunsen burner, and then wipe it off with a cleaning brush to prepare for the film. However, be careful not to leave it in the flame for too long;

3. Any diluted corrosive agent can be cleaned with wire mesh and then washed off with hot water;

4 An old way to clean the wire mesh is to insert the wire mesh on a shelf as thick as the screen frame, polish it with an abrasive cloth soaked in pumice, volatile oil or lacquer dilution solvent, and then wash it with hot water, after which the stencil can be attached to the wire mesh;

5 10% lye solution or 20% ammonia solution can also be used to clean or degrease the wire mesh;

6 You can also use the special cleaning solvent purchased from the ** supplier.

Wash with tap water for water, and wash with mesh water or cyclohexanone for oily ones.

Use a white rag to stick and scrub both sides of the net and water repeatedly, and you can contact us if you don't know it, email.

The cleaning of the screen printing plate after use is very important, and the thoroughly cleaned screen will not have the problem of clogging the dark and light colors when it is used again in the future, and the service life is quite long.

1.Use the screen of water-based printing paste, scrape the residual color and wash it with water first, then wipe it with triethanolamine in 1:1 mixed water, and wash it again with water.

2.Solvent ink, scrape off the residual color, wipe it with diethylene glycol monobutyl ether, and then wipe it clean with kerosene.

Water-based OK, oily ones can't be washed directly with water.

At present, there are two main types of screen printing inks (color pastes), water-based and oil-based! After printing with washing ink, you can rinse with water! Oily ones need to be scrubbed with paint or corresponding solvents!

Water-based inks can be rinsed with water, and oil-based inks should be made with ink.

It depends on what kind of ink you're using!

It is best to use PVC ink, then it will not fade (it will take 12 hours to solidify).