Characteristics of the hottest Seiko mirror ink

Characteristics of Seiko mirror ink

mirror ink is printed on transparent plastic sheets, such as PC, pet, PVC and PMMA. It is printed on the back of these transparent sheets. From the front of the transparent sheet, it looks like the smooth effect of mirror or bronzing surface, so it is called mirror ink. Mirror ink is widely used in the operation panels of washing machines, refrigerators and microwave ovens. At present, mirror ink is also used in the manufacturing of IMD technology, such as, automobile instrument panels and various decorative instrument panels and panels. It can be seen that mirror ink has penetrated into many industries and added light and color to these products. However, compared with ordinary screen printing ink, mirror screen printing ink requires high printing technology. People with certain printing experience and printing skills must print according to the process parameters of mirror ink to achieve satisfactory mirror effect after screen printing. The following suggestions on how to screen print mirror ink are as follows:

first, the characteristics of mirror ink:

1. Mirror ink is made of special metal powder and resin as basic materials. After screen printing, it can achieve the mirror effect of metal color, especially to avoid environmental pollution in the production process of chemical fiber itself. To maintain the maximum fluidity of the ink, a large number of special solvents are added to the ink, so the viscosity of the mirror ink is very low, as low as water. Therefore, the difficulty of screen printing is 300000 tons, which requires high-tech printing and horizontal printing. Otherwise, (1) when there is no printing, the mirror ink has leaked through the silk and contaminated the substrate. (2) In the printing process, the mirror ink is very easy to dry. In addition to being easy to block, it will also make the dry mirror ink accumulate on the surface and become silver slag, which reduces the mirror effect of the print

2. Mirror ink uses the smoothness of the substrate material surface to make the metal powder pigments in the printed ink arrange in parallel on the smooth substrate surface to obtain the mirror effect. Due to this performance of mirror ink, (1) materials with poor surface smoothness of transparent substrate (transparent sheet) cannot get mirror effect. (2) If the transparent substrate material cannot resist the solvent in the mirror ink, it will not get a good mirror effect. (3) After screen printing with mirror ink, the mirror effect is related to the drying method. (4) The operation skills of silk screen printing will affect the mirror effect

II. Types and applicable material range of Seiko mirror ink:

1. Mirror silver B is only suitable for printing PET films

2, mirror silver no, 2, can print pet, PC, PVC, PMMA

3. Mirror silver no and 2BS are no with 30% solvent reduction. 2

4. Color mirror ink no and 3, including medium gold, red gold and cyan gold, are colored mirror ink with high viscosity, which can print pet, PC, PVC and PMMA

III. printing skills of mirror ink:

l. First of all, we should understand that the mirror ink is as thin as water, and the printing skills are the key. When the printing speed is slow, on the one hand, the mirror ink as thin as water will leak out of the plate, on the other hand, the mirror ink is easy to absorb moisture in the air, and the mirror effect after printing is not good. Therefore, when printing, the mirror ink must be printed continuously and quickly after being poured on the plate in order to print smoothly, Even if the workpiece is checked while printing, this speed will have an impact on the printing effect, such as blocking, ink printing cannot continue, slagging on the plate, etc

2. The ambient temperature and humidity are very important when printing mirror ink. Because the ink is easy to dry on the plate, it cannot be silk printed in an environment with a large amount of air circulation, otherwise it is very easy to block and become gelatinous. As in the tensile test (stress-strain test), 1. Generally, when the two ends of the material sample are clamped on two fixtures with a certain distance between them, when the air humidity is high, the mirror effect is poor. Therefore, during silk printing, air flow and humidity should be avoided as much as possible, and the dehumidification treatment of the silk printing environment should be strengthened. If the mirror ink is stored at 20 ℃ and screen printed at 20 ℃, the printability will be better

3. Since the ink is as thin as water, high mesh silk should be selected. Not only that, the hardness of the rubber scraper should be harder, which can be more than 80

4. Mirror ink must be fully stirred before use, so that its metal powder and resin should be fully mixed evenly to ensure the appearance of mirror effect, otherwise, it will affect the production of mirror effect

5. The tension of the version is slightly lower, the distance is also adjusted closer, and the scraping pressure of the scraper is appropriately reduced, so that the mirror effect can be produced

6. During mechanical printing, the ink return knife used should not be made of hard aluminum or stainless steel, but should be made of colloid. 13. Breaking and stopping: the ink knife can stop or return to the initial position at the moment of sample breaking, so as to ensure that the mirror ink of silk printing is evenly coated and the mirror effect is consistent

7. The mirror effect of mirror ink is related to the drying method. In terms of mirror effect, natural drying is not as good as heating drying. Note that the heating temperature and drying time should be consistent, otherwise the mirror performance and color saturation will also be different