Introduction to the Material, Printing, and Labeling Process of In-Mold Labeling
Introduction to the Material, Printing, and Labeling Process of In-Mold LabelingAbstract: In mold labeling is a plastic container production process that uses a robotic arm to place printed labels into a mold for one-time injection molding. It has the advantages of beautiful finished products, low decorative costs, and high production efficiency. In recent years, it has been widely used in the injection molding production process of milk tea cups, yogurt cups, various food packaging boxes, paint buckets, and other products. This article will provide a preliminary introduction to the production process of in mold labeling and in mold labeling from aspects such as materials and processes, to help everyone have a more comprehensive understanding of in mold labeling.
What is called in mold label injection molding?
The so-called in mold injection molding refers to an automated injection molding process where printed plastic films are formed, cut, and placed inside the mold for injection molding processing.
The main key technologies for injection molding of in mold labeling include:
The selection of thin film materials.
Thin film printing equipment, ink and technology, taking into account their heat resistance.
The treatment or interface agent for adhesion and adhesion of thin films to high-temperature plastic raw materials.
High temperature hot pressing and vacuum forming processing technology (image and text are not deformed).
Precision 3D cutting technology.
The technology and equipment for curling or forming a thin film to hold it into a mold cavity.
The method and precise positioning of film adhesion on the surface of the mold.
Functional design to prevent liquid plastic raw materials from sliding or flowing between the film and the mold, resulting in defective products.
Design of precision molds (including vacuum suction and thin film positioning)
Thin shell high-pressure high-speed injection molding processing, etc.
Advantages of In-Mold Label Injection Molding
The packaging has a beautiful appearance, which helps to enhance the value of the finished product.
There are no issues with label detachment, detachment, or scratches during use.
The total production cost is lower than any other decoration method.
No additional equipment and manpower will be added for labeling or printing automation after injection molding.
Reduce the inventory of semi-finished products.
Increase the speed of the packaging line and reduce defective products.
Reduce the weight of packaging materials.
Can be affixed with anti-counterfeiting labels or RFID (High Frequency Identification System) labels.
Strengthen the strength and crush resistance of packaging boxes.
It can be completely recycled without any environmental pollution concerns.
