(1) Noriphan HTR printing process parameters:
Wire mesh: 90-120 mesh/cm polyester mesh screen: solvent-resistant screen dilution: Noriphan HTR 090 thinner, Noriphan HTR 097 drying agent, Noriphan HTR 097/003 slow drying agent according to the temperature of the screen printing environment Change the humidity and choose diluent. All solvents can be mixed in different ratios to achieve the desired drying speed.
Noriphan HTR 097 is the most widely used and can use slow drying agent Noriphan HTR 097/003 to extend screen drying time when printing fine lines.
Drying: After drying in a well-ventilated tunnel dryer at 60-80°C, then dry it in an IR oven at 90°C for 1-5 hours. The drying time is based on the total amount of residual solvent evaporated. Sometimes the drying time is too long. Long, it will also cause the ink film brittleness to increase and lead to cracking or flying oil and other ills.
The Aquapress (aqueous adhesive) HF-093 was stamped and dried at 80°C for 5 minutes.
(2) Noguchi IMD special UV ink process parameters:
Wire Mesh: 120-180 mesh/cm pw Polyester Mesh Screen: Solvent-resistant solvent screen type with a tension of about 20N/CM Screen Aid: 073 Accelerator, 100 thickener, 060 dots Varnish Drying: 2 120 W/cm UV-curing medium-pressure mercury lamp with a curing speed of about 20 m/min. Printing: Autotype SC (aqueous binder), dried at 80°C for 5 minutes.
Second, molding and molding methods Because the binding force between the PC sheet + mirror ink + injection molding plastic is less than the binding force of the PC sheet + injection molding plastic, the mirror printing ink cannot be full printed, ie it cannot be printed on the edge, and must be left The margin of the PC sheet is such that the PC sheet and the plastic can be firmly bonded together, and the PC sheet and the injection molding plastic at the edge of the IMD workpiece are firmly bonded, and when the external force does not tear, the mirror ink inside is The bond fastness to PC sheet and injection molding plastic is not affected by edge tear. In order to ensure that the mirror ink is not cracked during molding, the PC is not layered (separated) during injection molding. In addition to the graphic design of the graphic, the graphic design should be reasonable. When the mirror ink is printed, the effective mirror ink area is left with the PC sheet remaining outside the forming die. Design is also very important. For example, if you make an IMD workpiece as shown below, the usual procedure is:
The top edge of the mirror ink, such as this, will appear the following situation: When the edge of the curved, concave and convex or tearing force will appear cracking edge, leaving the entire mirror ink layer is separated. If the molding die is improved, the pre-pressed PC workpiece will grow 0.5 mm long on the edge of the ink on the mirror. The grown 0.5 mm PC sheet will be integrated with the injection-molded plastic just after injection, so that the edge and the mirror surface of the sheet can be avoided after injection. Separation of ink greatly improves the yield, and the edge of the injection molded part is smoother and the finished product is more beautiful. As shown below:
2. The structure of the molding die is unchanged, and the molding method in the normal IMD process is followed.
Third, shearing is performed according to a shearing process in a normal IMD process.
Fourth, injection molding For two different molding methods, there are two kinds of injection molding process.
1. If the molding is performed according to the above first molding method, the injection molding structure should be modified with the molding mold structure so that the injection molding mold is matched with the molding mold, and the others are all normal injection molding processes in the IMD process.
2. If the molding die and injection mold are not changed, they are produced according to the normal IMD process. After the injection molding, the edge of the mirror ink is subjected to ultrasonic welding or heat welding, so that the bonding strength of the edge of the workpiece is ensured.
The application of mirror ink in IMD technology has further enhanced the application status of IMD products. This article hopes to play a reference role for IMD manufacturers in the process of manufacturing IMD.
Wire mesh: 90-120 mesh/cm polyester mesh screen: solvent-resistant screen dilution: Noriphan HTR 090 thinner, Noriphan HTR 097 drying agent, Noriphan HTR 097/003 slow drying agent according to the temperature of the screen printing environment Change the humidity and choose diluent. All solvents can be mixed in different ratios to achieve the desired drying speed.
Noriphan HTR 097 is the most widely used and can use slow drying agent Noriphan HTR 097/003 to extend screen drying time when printing fine lines.
Drying: After drying in a well-ventilated tunnel dryer at 60-80°C, then dry it in an IR oven at 90°C for 1-5 hours. The drying time is based on the total amount of residual solvent evaporated. Sometimes the drying time is too long. Long, it will also cause the ink film brittleness to increase and lead to cracking or flying oil and other ills.
The Aquapress (aqueous adhesive) HF-093 was stamped and dried at 80°C for 5 minutes.
(2) Noguchi IMD special UV ink process parameters:
Wire Mesh: 120-180 mesh/cm pw Polyester Mesh Screen: Solvent-resistant solvent screen type with a tension of about 20N/CM Screen Aid: 073 Accelerator, 100 thickener, 060 dots Varnish Drying: 2 120 W/cm UV-curing medium-pressure mercury lamp with a curing speed of about 20 m/min. Printing: Autotype SC (aqueous binder), dried at 80°C for 5 minutes.
Second, molding and molding methods Because the binding force between the PC sheet + mirror ink + injection molding plastic is less than the binding force of the PC sheet + injection molding plastic, the mirror printing ink cannot be full printed, ie it cannot be printed on the edge, and must be left The margin of the PC sheet is such that the PC sheet and the plastic can be firmly bonded together, and the PC sheet and the injection molding plastic at the edge of the IMD workpiece are firmly bonded, and when the external force does not tear, the mirror ink inside is The bond fastness to PC sheet and injection molding plastic is not affected by edge tear. In order to ensure that the mirror ink is not cracked during molding, the PC is not layered (separated) during injection molding. In addition to the graphic design of the graphic, the graphic design should be reasonable. When the mirror ink is printed, the effective mirror ink area is left with the PC sheet remaining outside the forming die. Design is also very important. For example, if you make an IMD workpiece as shown below, the usual procedure is:
The top edge of the mirror ink, such as this, will appear the following situation: When the edge of the curved, concave and convex or tearing force will appear cracking edge, leaving the entire mirror ink layer is separated. If the molding die is improved, the pre-pressed PC workpiece will grow 0.5 mm long on the edge of the ink on the mirror. The grown 0.5 mm PC sheet will be integrated with the injection-molded plastic just after injection, so that the edge and the mirror surface of the sheet can be avoided after injection. Separation of ink greatly improves the yield, and the edge of the injection molded part is smoother and the finished product is more beautiful. As shown below:
2. The structure of the molding die is unchanged, and the molding method in the normal IMD process is followed.
Third, shearing is performed according to a shearing process in a normal IMD process.
Fourth, injection molding For two different molding methods, there are two kinds of injection molding process.
1. If the molding is performed according to the above first molding method, the injection molding structure should be modified with the molding mold structure so that the injection molding mold is matched with the molding mold, and the others are all normal injection molding processes in the IMD process.
2. If the molding die and injection mold are not changed, they are produced according to the normal IMD process. After the injection molding, the edge of the mirror ink is subjected to ultrasonic welding or heat welding, so that the bonding strength of the edge of the workpiece is ensured.
The application of mirror ink in IMD technology has further enhanced the application status of IMD products. This article hopes to play a reference role for IMD manufacturers in the process of manufacturing IMD.
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