All excellent products come from high-quality raw materials. The raw materials of BOPP/CPP composite packaging roll film mainly include polypropylene (PP) granules and necessary additives. Among them,...
READ MOREEasy-tear sealing film is suitable for different materials such as PP, PS, PET, PE, etc. It can be used for one-time sealing in multiple packages, which saves time and labor. The sealing effect is firm and easy to tear, good sealing effect, after pasteurization, the sealing film is not delamination, with moisture-proof, oxygen barrier, freshness and heat sealing performance. Easy-tear sealing film supports multi-color printing to meet the needs of different users, and is the ideal sealing packaging material for jelly, pudding, yogurt, jam and other multi-cup liquid beverage products.
All excellent products come from high-quality raw materials. The raw materials of BOPP/CPP composite packaging roll film mainly include polypropylene (PP) granules and necessary additives. Among them,...
READ MOREAs an important technology in the field of modern food packaging, the composite process forms a composite material with multiple functions by precisely combining different materials. In the production...
READ MOREAs a dairy product containing a large amount of active probiotics, the stability of yogurt quality and the length of its shelf life are directly affected by multiple factors such as air, light and mic...
READ MOREIn the production process of easy-to-peel sealing film (referred to as easy-to-peel sealing film), accurate control of the temperature and pressure of key equipment such as extruders and laminators is the core link to ensure the quality, uniformity and excellent performance of the film. As a manufacturer with a strong R&D team and advanced production equipment, our company ensures that every link from raw materials to finished products of easy-to-peel sealing film reaches the top level in the industry through a series of precise technical means and strict production management.
Accurate control of extruder temperature and pressure
1. Raw material selection and pretreatment
First, we select high-quality polyolefins (such as PP, PE) or other thermoplastic resins as the base material. These materials have excellent processing properties and chemical stability. Before the raw materials enter the extruder, we will carry out strict screening, drying and dehumidification to ensure that the purity and moisture content of the raw materials meet the production requirements, which is the basis for ensuring the accuracy of temperature control during the extrusion process.
2. Multi-stage temperature control system for extruder
Our extruder adopts an advanced multi-stage temperature control system, which sets and accurately controls the temperature according to the specific process requirements of different areas (such as feeding section, melting section, metering section, etc.). Through high-precision temperature sensors and intelligent PID temperature control algorithms, rapid response and stable temperature maintenance are achieved. In the melting section, ensure that the raw materials are fully melted and the temperature is uniform to avoid degradation or incomplete melting caused by local overheating; in the metering section, maintain a stable temperature to promote the uniformity of the flow of molten materials and ensure the thickness of the extruded film layer is consistent.
3. Pressure regulation and feedback mechanism
The screw speed and pressure in the extruder are directly related to the melt flow and extrusion rate. We use variable frequency speed regulation technology to automatically adjust the screw speed according to the extruder screw load and melt pressure changes to maintain a stable extrusion pressure. At the same time, equipped with a pressure sensor to monitor the melt pressure in real time, combined with a pressure feedback control system, quickly adjust the parameters to cope with possible fluctuations, to ensure the smoothness and efficiency of the extrusion process.
Precise control of temperature and pressure of laminating machine
1. Optimization of laminating machine process parameters
The laminating machine is a key link in the production of easy-tear sealing film. The control of its temperature and pressure directly affects the bonding strength, peeling performance and overall quality of the composite film. We optimize the composite process parameters, including preheating temperature, composite temperature, composite pressure and cooling rate, for different material combinations (such as PP/PE, PET/PE, etc.) through a large number of experiments.
2. High-precision temperature control system
The laminating machine is also equipped with a high-precision temperature control system to accurately control the temperature of the preheating roller, composite roller and cooling roller. The preheating roller is used to increase the surface temperature of the film material and promote the activation of the adhesive; the composite roller tightly fits two or more layers of film materials under a certain pressure to ensure that the adhesive is evenly distributed and effectively bonded; the cooling roller quickly reduces the temperature of the composite film and stabilizes the composite structure. Through the closed-loop temperature control system, the temperature of each roller can be stably maintained at the set value with minimal error.
3. Pressure control and adjustment
The control of composite pressure is the key to achieving a good composite effect. We use hydraulic or pneumatic systems to apply pressure to the composite rollers, monitor and feedback the actual pressure value in real time through pressure sensors, and automatically adjust it after comparing it with the preset value. At the same time, according to the type, thickness and production speed of the film material, the composite pressure is dynamically adjusted to ensure that each layer of the film material can be evenly and tightly composited, which not only ensures moderate peeling force, but also ensures the overall strength of the composite film.
Technological innovation and production automation
1. Intelligent control system
In order to further improve production efficiency and product quality, we introduced an intelligent control system to integrate extruders, composite machines and other auxiliary equipment (such as printing machines, bag making machines, etc.) into a unified monitoring platform. Through big data analysis and artificial intelligence algorithms, real-time monitoring, fault warning and intelligent parameter adjustment of the production process are realized, which greatly reduces the errors caused by human factors and improves the stability and flexibility of the production line.
2. Continuous R&D and technology upgrades
As an enterprise with a strong R&D team, we continue to invest resources in the research and development of new technologies, new materials and new processes. In the production process of easy-to-tear sealing films, we actively explore environmentally friendly adhesives, efficient and energy-saving production technologies, etc., and are committed to reducing energy consumption and emissions while improving product performance to achieve sustainable development.
In the production process of easy-peel sealing films, our company ensures high quality, high efficiency and low cost through precise temperature and pressure control, advanced production equipment, intelligent control systems and continuous technological innovation. These technological advantages not only enable us to produce customized and cost-effective products according to the specific needs of customers, but also give us a significant advantage in market competition.