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What are the requirements of water transfer equipment for membranes?
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What are the requirements of water transfer equipment for membranes?

Author: Site Editor     Publish Time: 2021-05-14      Origin: Site

What are the requirements of water transfer equipment for membranes?

What are the requirements of water transfer equipment for membranes? Water transfer printing inks are generally special inks for water transfer printing equipment. In a batch of products, it is better to use the same brand of inks, additives, thinners, and glues to avoid chemical reactions. Water transfer printing inks are generally available from suppliers everywhere.

 

When printing common consumables for water transfer equipment, first use a 200 mesh screen to print the white background. If the customer has no special requirements, whitening is taboo. Because the paper may be slightly stretched, the white background becomes larger after whitening, and the color behind It is difficult to cover the white background, and the color registration appears inaccurate. For products with whitened colors, when making films with manuscripts, the white background should be as small as 0.5-1mm than usual. After whitening, it will be just the same as the unwhitened background color to make the overprinting accurate.

 

When printing one color (white), first print a few corners (cross lines) to facilitate the two-color overprinting, and all the excess patterns such as the needle cross lines need to be sealed off, leaving only the patterns required by the product . Why? Because the water transfer mark printed by the water transfer equipment must be placed in the water when it is pasted on the object. The top film is separated from the bottom paper. After separation, the small cross-hairs are dropped into the water at the same time. The line will float on the required product with the water, affecting the operation.

 

After sealing it off, there is nothing to worry about and it is much more convenient. After each color is printed, in order to prevent dust inhalation, we can use a large sheet of newspaper to enclose the surroundings and the top, and sprinkle a little water on the ground at intervals to prevent people from walking and driving the dust to fall on the printed product. After each color is printed and dried, the drying method is natural drying, and fans, drying tunnels, dehumidifiers, etc. must not be used to help dry. Under the action of external force, the paper printed by the water transfer equipment will expand and contract irregularly, and what is waiting for you is the price of money.

 

Requirements for glue in the water transfer printing process: After all the colors are naturally dried, the glue can be prepared. Cover glue is very important, it directly determines the quality of a product, so when covering glue, you should pay more attention to dust and hair falling into the water transfer equipment. It is better to be truly dust-free, otherwise the waste rate will be very high, and at the same time, pay attention to adding less diluent. When applying glue, generally use 80 mesh screen.

 

When coating the photosensitive adhesive of the water transfer equipment, first scrape twice on the front and back of the screen, put it in an oven with a humidity below 40°, and then coat it twice on the front and back after drying. The photosensitive adhesive is thick One point, the glue is more saturated and the three-dimensional effect is stronger. If the area is large and the object is irregular, the glue is far from thick enough to cover once, and it does not meet the operating requirements at all. When it is attached, it will crack and curl around.

 

Choose to cover twice the water transfer equipment glue, the glue is thicker, it is more convenient to paste, and the waste is reduced. After the glue is covered, it must be naturally dried for more than 8 hours before separating the paper.


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