The best valve bag manufacturer in China
In China, there are some excellent valve bag suppliers, and Henan Baijia is one of the best. Based on the principle of being responsible for the environment, Henan Baijia specializes in the production of various paper sacks. Its products include valve paper bags, sewing paper bags（SOM）, pinch bottom paper bags(PBOM), and flat square bottom paper bags. Since these bags are for industrial use, they are basically multiwall paper bags. The paper valve bags play an important role, and their output accounts for much more than other types of paper sacks.
What is valve bag
valve bags, also known as valve sacks or pasted valve multiwall paper bags, are multi-layer bags commonly used to fill granular or powdery materials efficiently and conveniently.Pasted valve bags have various advantages in packaging cement, chemicals, fertilizers, food ingredients, etc. These bags are designed with built-in valves or nozzles for easy control of filling as well as effective sealing.
Types of valve bags
Valve bags are divided into several types based on the materials they are made from, each designed to meet specific packaging requirements and industry needs. Common types are:Paper Valve Bags,Polypropylene (PP) Valve Bags,Polyethylene (PE) Valve Bags,Laminated Valve Bags,Woven Polypropylene (WPP) Valve Bags,BOPP Valve Bags,PE/PP Valve Bags.According to the valve closing method and tightness, valve bags are divided into 3 types：Self- Sealing，Heat Sealing，Ultrasonic Sealing.These three methods can meet the sealing levels of different materials and the cleanliness of the working environment.According to the capacity, there are 20kg valve bags, 25kg valve bags, 30kg valve bags and 50kg valve bags. Among them, 25kg valve bags are the most commonly used paper sack packaging.
Benefits of Valve Bags
The valve bags are filled fully automatically by the filling equipment, and the valve opening allows for fast and controlled filling, minimizing spillage. The one-way valve prevents dust and particles from escaping during the filling process, improving workplace cleanliness and reducing product waste. The valve bags are designed to facilitate stacking, palletizing and shipping, simplifying logistics.
Disadvantages and Precautions of Valve Bags
Valve bags must be filled with equipment, which is difficult to achieve for factories without filling equipment, and purchasing equipment is also a large cost. The size of the filling port of different filling equipment is also different, which requires that the valve port size of the valve bag must be matched. Some have special requirements for the valve port, and the valve port even needs to be produced manually. In order to achieve high filling efficiency, the equipment needs to be filled quickly, which places high requirements on the toughness and breathability of the valve bag. If the paper is not tough enough or the valve bag has poor air permeability, it will easily burst during the filling process, causing material waste and reduced production efficiency. This is especially important for some chemicals.
Baijiapack has rich experience and advanced technology in the production of multiwall paper bags, and can solve product packaging problems for customers very well. If you need industrial paper bag packaging, please contact us feel free
