1. Identification of upper materials: Nowadays, the common materials for safety shoes in the Chinese market are: velvet leather, transfer leather, broken leather, leather, etc. In recent years, in order to keep pace with the EU CE standards, domestic manufacturers have begun to import. Foreign thickened buffalo that meets European standards. Since the appearance of the transfer leather material and the cowhide is very similar, many consumers cannot judge, and the two materials are now comparatively analyzed.
Onelook: cowhide (the type of leather, in the leather products industry is a customary name for people to distinguish synthetic leather) surface has obvious irregular patterns and natural pores, cold and folding resistance, good breathability and wicking performance; Generally referred to as natural synthetic leather, it is an artificial surface layer on the loose layer of natural leather. The grain pattern is similar to that of natural leather, but it has no pores and hard feel, but it has good waterproof performance.
Two touches: full of feel, full of elasticity, the hand touches the cold without the sense of cold, the hand feels hard, the cool feeling is mostly the transfer film leather.
Three observations from the cross section: there is no obvious film layer on the dermis section. Scratching the base by hand will reveal fluff and become longer and longer, which is the most obvious performance of the fiber base (dermis base); The leather is ground on the loose layer of natural leather or fiber. It is bonded by high pressure adhesive to form a sheet and then put on the artificial surface layer. The surface layer can be scraped with a knife edge. Small pieces peel off.
2, production process: domestic safety shoes production process points: molding, injection, gluing, seams. Injectable safety shoes are light, the sole and upper are high in viscosity, and the outer sole is usually made of polyurethane material, which is wear-resistant and waterproof. Adhesive shoes are a traditional process with a long history of production. Generally, the soles are made of rubber and other materials. The upper is bonded; the price of the sewing tire bottom shoe and the molding process is relatively low.
3, shoes for safety shoes: protection of toe safety shoes need steel toe cap, puncture-proof safety shoes need steel floor, anti-static shoes need anti-static agent and anti-static line, etc., observe, it is necessary to conduct protective performance test to understand whether it meets The supplier is certified to the product grade and the quality of the shoe material is in compliance with the requirements.
4, product comparison: the conventional comparison is divided into 2 ways, one is the cross-sectional anatomical comparison of the finished shoes, after the appearance process is compared, the longitudinal surface of the safety shoes is cut, and the cut surface, the auxiliary material cross section, the sole cross section, and the cross section can be clearly observed after cutting The internal structure and internal process of the steel head, steel bottom plate and shoes, it is worth mentioning that the density of the single-density sole cross section is the same, the hand is harder; the cross section of the double-density sole can observe the upper and lower layers. The density is different, the upper layer density is low, the lower layer density is high, and the elasticity is good by hand; if the sole is two-color molded, but the cross-sectional density is the same, it is also a single-density type. The second is to try on, try on the comfort of the safety shoes, feel the comfort of the shoes through the action of walking, squatting, kicking, heavy stepping and so on.