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Valve bags are widely used in all walks of life, including building materials, food additives, private chat, fertilizers, minerals, chemicals and other material packaging. First, the production method of the valve bag The production process of the valve bag is: folding the square bottom – brushing glue – hot pressing. The bag making method of […]
Valve bags are widely used at this stage and often appear in people’s daily life. The following square bottom machine manufacturers will popularize the difference between valve bags and open bags. The difference between a valve bag and an open bag 1. Different definitions (1) Valve bag Valve bags, as the name suggests, have a […]
Valve bags are commonly used in daily life, especially on construction sites of some engineering projects. Of course, valve bags can not only contain putty powder, tile glue and other construction materials, but also can contain corn flour, bread flour and other foods. The main function of the valve bag is to make a medium-sized […]
The kraft paper valve bag has the characteristics of beautiful appearance, moisture-proof and convenient use. It is suitable for long-distance transportation and storage. It is often used for various chemical raw materials, pigments, food additives, building materials and other materials suitable for packaging. The demand is large, so how do we buy and buy? The […]
The valve bag is currently the most popular packaging bag on the market. The material is fed from the top or bottom valve port, and the material is filled into the bag from the valve bag by filling, and the bag is sealed by internal sealing or external sealing. Package. Afterwards, it can be stored […]
All kinds of packaging bags are commonly used in daily life, such as cement bags, mortar bags, chemical bags, food bags and other valve bags that are commonly used in the industrial field. Do you know how it is produced? They are all made by the square bottom machine and the paper tube machine. What […]
Nowadays, paper bag machines are used in all walks of life. This not only leads to more and more types of bag making machines, but also manufacturers of bag making machines emerge in endlessly. In fact, the process of making the paper bag machine is very simple. The working principle is to make the OPP […]
What is a valve bag? The valve bag, as the name implies, is to leave a “valve” on the package. After the bag is glued up and down, leave a feed port for machine grouting and filling, and use mechanical power or pneumatic force to load the bag from the feed port. middle. It is […]
The square bottom valve bag is a small bulk packaging container, which is convenient, clean, and has good sealing performance. It is a more commonly used packaging material on the market. It is very convenient for the packaging of some construction materials and other powdery items. It has a sealing and The two types of […]
The kraft paper valve bag has the characteristics of beautiful appearance, moisture-proof and convenient use. It is suitable for long-distance transportation and stacking storage. It is often used for various chemical raw materials, pigments, food additives, building materials and other materials suitable for packaging. The demand is large, so how do we buy and buy? […]
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