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The main production process of leather goods!

Bindings – Various edgings used to frame or enhance the shape of a handbag. The side bone has no core skin bone, rubber core, cotton core, spring or steel wire core dermal bone, artificial material side bone and plastic bone without leather.

Flat seam – refers to a process in which single-layer or multi-layer overlapping parts are connected by a flat sewing machine (ie, a flat car). processes such as joining or sewing decorative threads.
Inseam – also known as blind seam or buried pocket, is a traditional process in which the edges of two parts are sewn together face to face and then turned over so that people can see the seams of the parts but not the stitches. There are initial hand sewing and lockstitch machines or high

The various methods of sewing the head car are suitable for the connection of internal and external parts and the production of soft handbags.

Topstitching – also known as outer seam, refers to a traditional process in which the inner layers of two connected parts are sewn relative to each other, and the upper and lower threads can be seen. There are also manual sewing and high head sewing methods, which are suitable for the last sewing process of the bag mouth and horizontal head three-dimensional structure of soft and stereotyped handbags.
Binding and inner seam – it is a decorative traditional process in which the edge of one part is sewn to the edge bone, and then the edge of the other related part is attached to the edge of the other related part for inseam decoration. It is suitable for the design of the middle lattice structure of soft handbags or stereotyped handbags make.
Binding edge seam – is a decorative edge between the edges of the two parts of the oil edge or folded edge, and a decorative process made by the open seam process, which is suitable for the design and production of various package products.
Hemming and topstitching – is a decorative traditional process of wrapping a certain width of leather strips (or artificial leather strips, cloth strips, etc.) on the edge of a flat part or the outline of a three-dimensional structure. Single-sided hemming, double-sided hemming, as well as a variety of reverse hemming and nylon webbing inner hemming. The hemming of the flat parts is sewn with a flat stitch machine, and the hemming of the three-dimensional structure is sewn with a high-head machine, which is suitable for the design and production of all leather goods.
Oil edge – also known as loose oil edge, after polishing the edge of leather product parts or the three-dimensional contour that fits, and then rolling a layer of leather edge oil on the decorative traditional craftsmanship. The method of oil edge can be divided into two types: thick oil method with different processing technology and different processing technology, and thin oil method only for edge color improvement. The thick oil method is suitable for the processing of relatively stiff high-end leather products, requiring smooth and full edges; the thin oil method is generally used for both soft and hard leather, but rough fibers and fitting gaps can be seen on the edges, and are mostly used for the processing of casual handbags.
Folding – after thinning the edge of the product part or directly applying glue (or pasting double-sided tape) to the edge of the lining cloth and artificial material, fold it to the inner layer for 2 or 2 and a half points (inch length unit 1 Minute = 1/8 inch) a traditional process, suitable for various artificial leather bag materials and parts processing of genuine leather products.
Semi-open seam – it is a fashionable process in which the parts at different levels are pasted into a three-dimensional structure, and then sewn with a special column car or a swinging car. This process is suitable for sewing the bottom of the bag and the three-dimensional wrapping leather that cannot be turned over. In addition, the flat sewing machine sews the same level of components, and after assembly, it only sees the line but not the bottom line. The difference between them is that the flat sewing machine is suitable for flat sewing, while the column sewing machine and the tilting machine are suitable for three-dimensional sewing.
The above is an important process in the design and production of leather goods. In addition, there are many other processes in the production and assembly process, which are also skills that manual workers in various process processes must master. For designers, it is only required to have a certain degree of understanding of various processes in actual work, and can be used as a reference factor for product design. When designers want to make changes to some key processes, they should supplement the description and oral explanation with pictures or text, emphasizing the special effects and changing methods after the process changes.