Ton bags can be classified by manufacturers based on different bag-making methods. Generally speaking, they are mainly divided into four categories, as follows:
1. Three-sided sealing is to seal around the packaging bag. The front and back dimensions are both finished product sizes. It has a certain sense of integrity, the design is not constrained, and the front and rear designs have a certain degree of coherence. Since the front and back are the same size, you can design the front first so that the back echoes the front. When making plates, the front and back should be arranged on the same set of plate drums.
2. The midsole seal is sealed on the back. The size of the front is the finished size. The back is divided into two equal parts, and the sum of their widths is equal to the width of the front. Usually during design, the front and back are unfolded for an integrated design, and 1cm edge sealing to the left and right sides, and the front and back are also on the same set of rollers. The three-dimensional middle seal is based on the middle bottom seal and adds three-dimensional edges on both sides. The front, back, and side surfaces are also on the same set of rollers.
3. Due to the limitations of printing materials, the front and back sides of the sheet must be designed and plated separately, and cannot appear on the same plate cylinder at the same time. Ore ton bag manufacturers wholesale During the processing of ore ton bags, product materials need to be prepared, and mixing is an indispensable link. The following is a brief introduction to the specific operating steps of this process.
When mixing new and old raw materials, special attention should be paid to the uniformity of the mixing, and raw materials with similar melt indexes should be selected for blending. If the melt index of the raw materials of the ton bag manufacturers is too different, the melting temperature will be too different. During the plasticizing and extrusion process, the plasticization cannot be uniform at the same time, which will seriously affect the drawing, resulting in a decrease in the quality of the flat yarn, and at the same time, the breakage rate and waste products. The rate is so high that it cannot even be produced. During the mixing process, pay attention to the drying time and temperature of the raw materials.
