Printing knowledge - screen printing ink preparation and recycling method

 


Printing knowledge - screen printing ink preparation and recycling method In the process of screen printing, the first problem encountered before printing is the deployment of ink color, whether color real reproduction directly affects the product quality and market space share. To make customers satisfied, you first need to know how to improve the quality of ink by using ink color blending techniques. 1 screen printing ink to find a container to put ink to avoid waste (it is recommended to use a transparent disposable cup, easy to be easily poured into the right amount of ink (how much to pour) The ink preparation method is clear basic requirements: first determine the printing material (paper, plastic, metal, etc.), select the corresponding system of ink (such as screen printing plastic ink for plastic, high temperature curing ink for metal). With the basic color as the main body, a small amount of auxiliary color is added, and the amount of each amount is not more than 5% of the total ink amount, and the test is compared after mixing. The drying speed can be added to the special curing agent (for metal, glass and other materials) by adding fast drying/slow drying agent to the ambient temperature. It is judged that the ink concentration ink itself is thicker, and the proportion of open oil and water dilution ink and open oil is 8: 2 (ink 80% open oil and water 20%) the prepared ink can be directly mixed with disposable chopsticks to mix ink and thinner evenly 2 ink recovery printing after printing surplus ink should be recycled, timely to clean the network version. Before treatment: rinse the screen plate and ink tank with solvent, collect waste liquid and residual ink, and remove impurities, fibers and curing particles through 100-200 mesh filter. Add a small amount of corresponding basic color correction if the color is offset; add a small amount of corresponding basic color correction if the adhesion decreases, add a proper amount of curing agent. Note: 1. No use of steel wire ball and other sharp and rough articles to scrub the screen board, easy to wash the screen board, will wipe the content of the board clean and transparent, The net board that has been sticky ink is relatively difficult to wash into the appearance of new board 3, before washing the net water to clean most ink in the net board or wipe with paper towel, otherwise it will be more difficult to clean, waste is also larger (washing net water can dilute the ink, A lot of ink will wash more and more) Q: warm tips: gloves and masks should be used in preparation to avoid contact with skin and inhalation of volatile gases. To prevent performance failure. If the remaining ink has been cured or spoiled (agglomeration, odor), it shall be treated according to the hazardous waste specification and shall not be discarded at will.

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