The manufacturing process of the mesh bag involves the use of polypropylene and polyethylene resin as primary raw materials, with the addition of small amounts of auxiliary materials and mixing. The mixture is melted with an extruder, which then extrudes a plastic film that is cut into filaments. These filaments are then stretched at a temperature below the melting temperature of the resin to create a flat yarn that is both high-strength and low-stretch through molecular orientation and thermal orientation. Finally, the flat wire is made by winding, weaving, cutting and stitching. The mesh bag manufacturer follows a strict production process to ensure the quality and durability of the bag.
Based on our continuous sampling inspection of mesh bags over the past few years, we have discovered that the most common issue with these bags is their failure to meet the tensile load requirement. This is a crucial indicator as it directly impacts the overall quality and durability of the bag.
Furthermore, we have established specific guidelines for the appearance of a mesh bag. For instance, the cloth cover must not have three broken wires in the same location. Similarly, the sewing must be flawless with no threads, breaks, or curls allowed. Adherence to these rules ensures that the final product is of the utmost quality and can withstand the normal wear and tear expected of a mesh bag.
The production process of mesh bag manufacturers faces a number of challenges that impact the tensile load index. Raw material ratios must be carefully selected to avoid issues such as poor quality flat yarn or inadequate quality per unit area. Additionally, if the weaving process is not properly controlled, it can also have a negative impact on product tensile load. Fortunately, plastic is a cost-effective material that offers excellent performance in a variety of applications. As such, it can be a viable alternative for manufacturers seeking to maximize performance while minimizing costs.
To ensure the safety of our vegetables, mesh bags must not have noticeable oil stains in their design. It is also important to note that during the sewing process, needles must not be dropped, broken, or folded as these would result in substandard products. Therefore, it's crucial to prioritize these requirements when manufacturing mesh bags used to protect our produce.