Requirements for the hottest screen printing mater

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Silk printing materials require

to pursue the high quality of silk printing. As a silk printing worker, we should first have a correct concept of quality. Secondly, we should have good working habits. For example, the working environment should be kept clean and all appliances should be well maintained. If there is no vacuum cleaner, do not use a brush when cleaning the working environment, so as to avoid dust flying. Wet cloth is required for floor cleaning and table and utensils cleaning. Clean working conditions can improve the quality of work, improve the working environment, and help to achieve high-quality printing

negative before printing, what we need is positive negative. What are the requirements for a good silk screen negative

* the film base and polyester film of the negative should be highly transparent

* the film surface should be on the front of the negative. We often find that some users use the film on the opposite side of the negative, which is a positive for offset printing. If you use this negative to print, the quality will not be guaranteed. Because the image of the film surface of the negative film should be in close contact with the photosensitive adhesive layer of the film plate when printing the silk screen version

* density (density = blackness) should be greater than D3. Offset printing uses a positive film smaller than D3, so a densimeter is needed to measure the density of the positive film

* the density of images and words everywhere in the negative needs to be higher. Hand engraved masks should not be used as screen printing negatives. Negatives shall be made of photographic negatives with high hardness

* before using the film that has a positive impact on the earth, it should be cleaned with detergent or dust removal roller

silk for silk printing is not an ordinary fabric, but a high-strength material with very small tolerance. For example, we all know that in 120 mesh/cm silk, there are 24000 meters of silk thread per square meter, or there are 14400 holes per square centimeter, but in fact, the knowledge about silk is far more than that

sefarpet1000 silk has:

1. High tension 2. Low tension loss 3. High tension stability 4. Good wear resistance 5. Low water absorption 6. Good acid corrosion resistance. At the same time, the woven structure of silk is also very important for silk printers. You can find the required technical specifications in the technical data. What are the benefits of knowing all these data

let's take a look at the relevant data:

1. Wire diameter: it is the indicator that determines the final imaging ability

2. Mesh/cm: the strength and possible tension of silk can be determined, because the effective cross-section and wire diameter per centimeter of silk determine the relevant stability of silk. These two factors also determine all other parameters. Such as the thickness of the wire, the opening size of the wire, and the opening area ratio of the wire

3. the thickness and opening area of the silk determine the ink amount and the theoretical ink transmission volume

frame we all know clearly that the distance between fixtures is 50mm, and the requirements of the exterior wall external insulation system for thermosetting materials are not only for frames with strong fire resistance, but also for frames that can control the whole printing process

such as the loss of tension and the stability of tension

taut as previously explained. According to the average effective cross-section of the wire, each different wire has its maximum tension. This maximum tension can only be achieved by using well maintained tensioning equipment. Sometimes some stretching machines are really regrettable. The fixture is covered with a layer of dry glue, and the rubber pad is harder than stone, and cannot be closed horizontally

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