The Labeling Process Method of Transparent Film Three-dimensional Packaging Machine

The labeling process method of the transparent film three-dimensional packaging machine mainly focuses on the conveying, forming, sealing and cutting of the transparent film and its adhesion to the packaged items. The following is a detailed description:

Transparent film conveying and positioning

The transparent film is conveyed to the packaging position at a constant speed and tension through the film material conveying system (such as rollers or conveyor belts). During the conveying process, it is necessary to ensure the accurate position of the transparent film to avoid deviation or wrinkling. The position of the film material can be adjusted through guide rollers and deviation correction devices to ensure its alignment with the packaging.

Transparent film forming and wrapping

In the forming area, the transparent film is stretched and folded by precisely controlled pneumatic or mechanical devices to fit the three-dimensional shape of the items to be packaged. The formed transparent film wraps the items inside, creating a "π" shape or other required shapes. This process requires ensuring that the packaging adheres tightly to the items to avoid any gaps or looseness.

Sealing, cutting and laminating

The wrapped transparent film is sealed at both ends or on the sides by means of heat sealing, cold sealing or adhesive, etc. During the sealing and cutting process, it is necessary to precisely control the cutting position and speed to ensure that the cut surface is smooth and free of burrs. The sealing temperature, pressure and time need to be adjusted according to the material and thickness of the membrane material to ensure a firm and sealed seal. For instance, the sealing temperature for BOPP film is typically 160-180℃, while for PVC film, it can be appropriately reduced to 150-170℃.

Labeling and finished product finishing

After the sealing and cutting are completed, if labeling is required, the labels can be adhered to the surface of the transparent film through the labeling device. The labeling position must be precise to avoid the label being skewed or bubbling. After labeling, it may still be necessary to carry out finished product finishing, such as inkjet coding and punching, to meet specific packaging requirements.

Key precautions

Membrane material quality: Ensure that the transparent film has uniform thickness and appropriate material to avoid affecting the sealing, cutting and labeling effects due to membrane material issues.

Equipment maintenance: Regularly clean the heat sealing knife, cutting knife and labeling device, inspect the heating elements and temperature control system to ensure the normal operation of the equipment.

Operation Specifications: Operators must be trained to be familiar with the equipment operation process and parameter Settings to avoid quality issues caused by improper operation.