Food Laser Bag

Design and Prepress
The process begins with the design of the packaging artwork, including graphics, text, and any other relevant information. Designing is indeed one of the crucial processes that requires meticulous attention in order to meet clients' specifications before commencing the manufacturing process. Prepress activities involve preparing the design for printing, including color separation, and proofing.

Plate-Making
The plate-making process is a crucial step in the manufacturing of plates used to transfer ink onto the printing material during the printing process. Its main objective is to accurately reproduce the colors of the original image through dots created on the printing plate. It involves various technological advancements and precise procedures to transfer the image onto the printing plates, allowing for faithful replication of the original image during the printing process. In this step, the chosen design is transferred onto the selected material using various printing techniques like flexography, gravure, or digital printing. The printing process typically involves creating printing plates, inking the plates, and transferring the inked image onto the material through a series of rollers or cylinders.

Quality Control
Implementing quality control measures between the printing and lamination stages is crucial to ensure accurate graphic printing and identify any rejected productions before lamination. This helps to prevent additional losses and maintain high-quality standards. Firstly, we utilize an automatic monitoring system integrated into our printing machines. This system continuously monitors the printing process, detecting and flagging any deviations or errors in real-time. By doing so, it allows for immediate intervention and adjustment to maintain the accuracy and quality of the printed graphics. Furthermore, we employ a dedicated printing quality control system machine. This machine is specifically designed to assess the quality of the printed graphics, including color accuracy, sharpness, registration, and overall print integrity. It employs advanced technology and algorithms to analyze the printed output and compare it against the desired specifications. This ensures that the printed graphics meet the required standards and minimizes the chances of defective or rejected productions.

Lamination
If the Food Laser Bag requires multiple layers or enhanced functionalities, lamination will be applied. Lamination involves bonding different layers together using different lamination ways, such as dry lamination, solventless lamination, and extrusion lamination.

Aging / Curing
The Aging process refers to the reaction between the main agent and the curing agent in the lamination film. It is a crucial step in shaping the adhesive layer of the lamination film. Without proper curing, the lamination film cannot proceed to the subsequent processing stages. Curing can be classified into two types: normal temperature curing and heating curing. In normal-temperature curing, the reaction between the main agent and the curing agent takes place at ambient temperature. This process allows the lamination film to complete the reaction without the need for additional heat. On the other hand, heating curing involves subjecting the lamination film to a specific temperature to facilitate the reaction between the main agent and the curing agent. The application of heat accelerates the reaction, leading to faster curing and shorter production cycles. Both normal temperature curing and heating curing have their advantages. Normal temperature curing offers simplicity and convenience as it eliminates the need for additional heating equipment. However, it may require a longer aging time compared to heating aging. Heating curing, on the other hand, allows for faster curing and shorter production cycles. By providing the necessary heat, the reaction between the main agent and the curing agent is accelerated, resulting in quicker shaping of the adhesive layer.

Slitting and Rewinding
Slitting refers to the process of cutting the lamination film or printing film into the desired width. This step is performed during production to customize the width of the film according to specific requirements. In the slitting process, the material to be slit is released through an unwinding device. The longitudinal movement of the material is controlled by a photoelectric control system, ensuring precise positioning of the cutting tool for accurate slitting. The slitting tool cuts the material into narrower strips. After slitting, the cut strips are rolled into rolled films using a winding device. These rolled films serve different purposes depending on the requirements. Some are used as finished products for customers' automatic Food Laser Bag machines, while others are treated as semi-finished products that will be transferred to the next process for pouch making.

Pouch Making
The bag-making process involves heat sealing the composite film into a bag shape according to customer requirements. It is important that the inner layer of the composite film possesses heat-sealing properties. The bag-making process in Food Laser Bag can be divided into two methods: back-sealing bag making and side-sealing bag making. The back-sealing bag-making method is of the split type. During production, the bag-making material, a semi-finished product is released from the unwinding device and enters the forming stage. This stage is primarily accomplished through the collaboration of the photoelectric control system, forming plate, and regulating device. These components ensure precise shaping and formation of the Food Laser Bag material. A rectified deviation device was incorporated at this stage to ensure precise adjustment of the pouch size. Then punch holes if necessary, according to the design of the Food Laser Bag.