Custom Quad-seal Spout Pouch Manufacturers

In the process of laminating the multilayer materials of the quadruple-sealed spout bag, how to control parameters such as temperature, pressure and time to ensure the composite strength and barrier performance?

When discussing the key points of technical control in the process of laminating the multilayer materials of the quadruple-sealed spout bag, we have to deeply analyze its material structure, laminating principle and fine regulation of key process parameters, all of which are exactly what our company is good at as a technology leader in the industry. Combined with a series of advanced equipment owned by our company, such as high-speed dry laminating machine, solvent-free laminating machine and a strong R&D team, we will elaborate on how to ensure the excellent performance of composite strength and barrier performance from three dimensions: temperature, pressure and time.
The multilayer structure design of the quadruple-sealed spout bag requires different functionalities for each layer of material, such as the inner layer needs to have good heat sealing properties, the middle layer needs excellent barrier properties, and the outer layer needs to be wear-resistant and scratch-resistant. Our company has established long-term cooperative relationships with many internationally renowned suppliers in material selection to ensure that the quality of raw materials is stable and meets food safety standards. Before lamination, the materials need to undergo strict pretreatment, including surface cleaning, corona treatment or plasma treatment, etc., to increase the surface tension of the materials and promote good bonding between the adhesive and the substrate.
Temperature is one of the most important parameters in the lamination process, which directly affects the fluidity, curing speed and final composite strength of the adhesive. Our company's high-speed dry laminating machine and solvent-free laminating machine are equipped with high-precision temperature control systems, which can accurately control the temperature of the laminating area. In dry lamination, we set the most suitable preheating temperature, coating temperature and aging temperature according to the type of adhesive (such as polyurethane, polyester, etc.) and the characteristics of the material to ensure that the adhesive is evenly coated on the surface of the substrate in a molten state and form a solid composite layer during the subsequent cooling process. Solvent-free lamination uses high temperature and high pressure to cure the adhesive instantly, and also requires precise temperature control to avoid overheating and deformation of the material or failure of the adhesive.
Pressure is another key factor in the lamination process. It ensures close contact between the adhesive and the substrate and promotes the penetration and diffusion of the adhesive. Our company's high-speed laminating machine adopts an advanced pressure control system that can achieve uniform pressure distribution over the entire lamination width. When setting the pressure, we consider the thickness, hardness of the material and the characteristics of the adhesive to ensure sufficient pressure to promote the penetration of the adhesive, while avoiding excessive pressure that may cause deformation or damage to the material. In addition, we also ensure consistent lamination quality in different production batches by real-time monitoring and adjustment of pressure parameters.
Time, that is, the time the adhesive acts at a specific temperature and pressure, is crucial to the formation of lamination strength and barrier properties. Too short a time may cause the adhesive to fail to fully cure, affecting the lamination strength; too long a time may cause thermal degradation or over-curing of the material, reducing the flexibility and barrier properties of the product. Our company's laminating machine has a highly automated time control function, which can accurately control the duration of each stage according to the preset program. Through multiple tests and optimizations, we have determined the optimal lamination time window for different materials and adhesives to ensure the stability and consistency of product quality.
In addition to the fine control of the above basic process parameters, our company also relies on a strong R&D team to continuously explore and apply new technologies to improve lamination quality and efficiency. For example, we use advanced online detection technology to monitor key indicators such as temperature, pressure distribution and lamination strength during the lamination process in real time, and promptly detect and adjust abnormal situations. At the same time, we are also developing new environmentally friendly adhesives and more efficient laminating processes to reduce the impact on the environment and improve production efficiency.
In the laminating process of multi-layer materials of quadruple sealed spout bags, precise control of parameters such as temperature, pressure and time is the key to ensure the laminating strength and barrier performance. Our company has accumulated rich experience and significant advantages in this field with advanced equipment, rigorous process control, strong R&D capabilities and unremitting pursuit of quality. Especially in the production of products such as penguin bags that have extremely high laminating requirements, we can give full play to our technical strength and provide customers with high-quality, cost-effective solutions.