When customizing a backpack, there is a very important process called hemming. It is the main process that connects the two parts of the backpack. This process is completed by a special sewing car, that is, a high car. The high car is specially designed for hemming. The equipment produced can well wrap the luggage products.
There are two main hemming effects, one is to reinforce the connection point of the two parts, the other is to cover the stitching, which means a little bit of ugliness, we usually say that the hemming is the inner hemming, but now There are many backpacks that use the outsourcing method. The effects of the backpacks made by the two hemming methods are completely different. The inner wrapping is the kind of ordinary backpack we often see. The effect of the outsourcing is generally the same. Appears more fortitude, often used in tool backpacks and specific styles.
The one on the left is our normal backpack with inner edging method, and the one on the right is the outer edging, which is usually used for tool bags. The outer edging generally uses the main material edging or thickened edging belt, and the color is generally required. Similar to the main ingredient.
In fact, the way of outer edging is determined according to the attributes of the backpack. The bags made with the outer edging are generally semi-finished, because the front and rear panels are supported by plastic sheets or other hard things, and the inner edging is not easy to turn the bag. So adopt the form of outsourcing edge.