Ensuring the sewing quality of non-woven bags is essential to improving the durability and aesthetics of non-woven bags. Here are some ways to ensure the sewing quality of non-woven bags:
Choose the right sewing equipment
First, choose sewing equipment with reliable quality and stable performance. For sewing non-woven bags, industrial sewing machines are usually required. These sewing machines should have sufficient power and stitch stability to adapt to the material characteristics of non-woven fabrics. At the same time, according to the size and thickness of non-woven bags, choose the right needle type and thread number to ensure that there will be no problems such as thread breakage and skipping during sewing.
Control sewing parameters
1. Stitch density: Reasonable stitch density is the key to ensuring sewing quality. Too dense stitches will increase costs and may cause damage to non-woven materials; too sparse stitches will reduce sewing strength. Generally speaking, the stitch density of non-woven bags should be determined according to the size, purpose and load-bearing requirements of the bag.
2. Sewing speed: Controlling the sewing speed can ensure the uniformity and stability of the stitches. Too fast sewing speed can easily lead to problems such as uneven stitches and skipped stitches; too slow sewing speed will affect production efficiency. When sewing Non-woven bags, the appropriate sewing speed should be selected according to the equipment performance and the proficiency of the operator.
3. Tension adjustment: Correctly adjusting the thread tension of the sewing machine is an important part of ensuring sewing quality. Too much or too little thread tension will affect the beauty and strength of the stitches. When sewing Non-woven bags, the thread tension should be adjusted appropriately according to the thickness and material of the non-woven fabric to balance the tension of the upper and lower threads, and the stitches are flat and firm.
Strengthen sewing process management
1. Operator training: Provide professional training for sewing operators to familiarize them with the operating methods and sewing process requirements of sewing equipment. Operators should master the correct sewing skills, such as starting, closing, corner sewing, etc., to ensure the stability of sewing quality.
2. Quality inspection: Establish a strict quality inspection system and conduct a comprehensive inspection of each Non-woven bag. The inspection contents include stitch quality, sewing strength, dimensional accuracy, appearance quality, etc. If problems are found, they should be rectified in time to ensure that the product quality meets the standard requirements.
3. Raw material management: Strict quality control of non-woven raw materials is carried out to ensure that its thickness, strength, color and other indicators meet the requirements. At the same time, attention should be paid to the storage and use environment of non-woven fabrics to avoid factors such as moisture and pollution that affect the sewing quality.
In short, to ensure the sewing quality of Non-woven bags, it is necessary to start from multiple aspects such as sewing equipment selection, sewing parameter control, and sewing process management, so as to comprehensively improve the sewing quality level and provide users with high-quality Non-woven bags products.
