Blue Crown, a die-cutting manufacturer, will explain to you the reasons for cracks appearing on acrylic panels after screen printing
Acrylic belongs to a type of ordinary plastic, mainly producing high-quality decorative panels. The difficulty of silk screen printing acrylic panels is not high, but after silk screen printing, ink cracks are prone to appear in the graphic and text parts. Below, the blue crown editor of the die-cutting processing manufacturer will answer the reasons for the cracks on acrylic panels after silk screen printing.
Everyone knows the principle of thermal expansion and contraction, and silk screen ink and acrylic panels are no exception. For example, when the printing environment temperature is 20 degrees Celsius, the acrylic panel is placed in an environment below 20 degrees Celsius after silk screen processing. At this time, the ink and acrylic panel will shrink and crack. If the silk screen is completed and placed in an environment above 20 degrees Celsius for natural drying, wait for the ink to dry. If the ink has tensile resistance, it will not crack.
Blue Crown, a die-cutting manufacturer, will explain to you the reasons for cracks appearing on acrylic panels after screen printing
Before printing, if the temperature of the acrylic panel is raised above the printing environment temperature, the acrylic panel will gradually shrink with the ink after printing, and it is also less prone to cracking
The hardness of the ink determines that silk screen acrylic panels will not have cracks. If silk screen acrylic panels have higher ink hardness in all temperature environments, they are more prone to cracks, while those with lower ink hardness will not have cracks.
Summary: The two biggest factors causing cracks on acrylic panels after screen printing
1. Temperature: including ambient temperature, ink temperature, drying temperature, temperature difference before and after acrylic screen printing. If there is a temperature difference, thermal expansion and contraction will occur, causing cracks. The temperature of the printing panel should be higher than the printing environment temperature!
2. Ink: Silk screen acrylic panels need to be tested for ink adhesion and hardness before batch processing. Choose ink with lower hardness!
Dongguan Blue Crown Electronic Materials Co., Ltd. is a comprehensive enterprise specializing in the stamping and die-cutting of PC, PVC, PET, acrylic, and Mingban precision screen printing, dust and sound insulation, shockproof silicone rubber, thermal shielding insulation materials, and 3M double-sided adhesive, PORON, and EVA foam. It integrates raw material sales, production, auxiliary material processing, and sales. Welcome to inquire by phone.
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