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Each step in the in-mold labeling process is independent of each other and closely connected. If any link is not well matched, it may cause the product to be scrapped. This article takes injection molding labeling as an example to briefly introduce common problems and solutions in the process of injection labeling.

Control the injection pressure and injection time of the injection molding material

Since the maximum temperature that printing ink can withstand is generally 250-260 ° C, when designing the injection mold, it is necessary to consider the physical properties of the injection molding material, the injection pressure, the injection time, the size and quantity of the gate, etc. The performance of the container does not destroy the printed graphic information. When selecting the injection molding material, the higher the fluidity of the material, the better the injection temperature is. The lower the injection pressure is, the lower the injection temperature is, the longer the injection time is, and the longer the injection ink is. The longer the time will be, so balance the relationship between the injection molding material and the injection pressure, injection temperature, and injection time to find the appropriate injection conditions.

Prevent the digital printing ink layer from peeling off from the printing material

The phenomenon of peeling off the digital printing ink layer and the printing material occurs, mainly because the surface tension of the printing material is still too small after the corona treatment, the anilox roller selection is not suitable during the coating process, and the temperature, pressure and the cooling system are improperly controlled during the injection molding. Caused by several major factors, therefore, it is necessary to check one by one to ensure that the digital printing ink is firmly combined with the printing material.

Reduce ink injection during injection molding

For products such as electrical control panels that use printing, the injection molding process should prevent the injection molding material from "dispersing" the printing ink during the injection process, destroying the graphic. Therefore, the thickness of the ink layer, the viscosity of the ink, and the thickness of the printing material are appropriate. In addition, printing a protective ink layer that prevents ink from being applied at the gate position can also reduce the occurrence of ink rinsing to a certain extent.

The above excerpt from Section Indian media "tagging" 2013, Vol. 2, please pay attention to more journals Articles, latest journal content network click into KeyinPrint electronic journals channel.


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A charcoal grill is a type of outdoor cooking appliance that uses charcoal as its primary fuel source. It typically consists of a metal frame or cart, a cooking grate, and a charcoal tray or basket. Charcoal grills come in various sizes and styles, from small portable models for camping and tailgating to large, heavy-duty models for backyard cookouts. They are popular for their ability to impart a smoky flavor to food and their versatility in cooking a variety of dishes, from burgers and hot dogs to steaks and vegetables. However, they require more time and effort to set up and maintain than gas grills, and can be more challenging to regulate the temperature.

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