Divided into single, double and stacked tiles
The single-layer type is a penetrable type and is the simplest type of processing technology. During processing, the lining, filler, and outer material are stacked together and the three layers are stitched together. The needle eye of a sleeping bag machined with this technique penetrates three layers, so a needle is punctured. The cotton of this processing technology has good uniformity, the filling material of the suture part is relatively thin, and the pinhole parts are easily ventilated. Generally, the sleeping bags of this technology have a low grade.
The double-layer type is currently the most widely used one. During processing, the material is sewn together with a layer of filler and the fabric is sewn together with a layer of filler. Then the two layers of stitches are staggered together. The sleeping bag in this process is warm and has no pinholes.
Stacked tiles are the most complex type of processing. During processing, the combing material is combed and then cut into small pieces. The ends of the small pieces are sewn together and the fabric is sewn together at the other end. This process has better warmth, breathability and strength, the cost is much higher than the double-layer type, and it is mostly used in some high-grade sleeping bags.
The single-layer type is a penetrable type and is the simplest type of processing technology. During processing, the lining, filler, and outer material are stacked together and the three layers are stitched together. The needle eye of a sleeping bag machined with this technique penetrates three layers, so a needle is punctured. The cotton of this processing technology has good uniformity, the filling material of the suture part is relatively thin, and the pinhole parts are easily ventilated. Generally, the sleeping bags of this technology have a low grade.
The double-layer type is currently the most widely used one. During processing, the material is sewn together with a layer of filler and the fabric is sewn together with a layer of filler. Then the two layers of stitches are staggered together. The sleeping bag in this process is warm and has no pinholes.
Stacked tiles are the most complex type of processing. During processing, the combing material is combed and then cut into small pieces. The ends of the small pieces are sewn together and the fabric is sewn together at the other end. This process has better warmth, breathability and strength, the cost is much higher than the double-layer type, and it is mostly used in some high-grade sleeping bags.
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