1, vamp material identification: now the Chinese market are so common safety shoes vamp material: leather, leather shift membrane, broken leather, cowhide, etc., to and the European Union CE standard synchronization in recent years, there are domestic manufacturers to start importing foreign comply with European standard thickening of buffalo hide. As membrane and cowhide leather materials are similar in appearance, many consumers cannot judge, comparison between these two kinds of material analysis.
A see: leather (leather, in the leather industry is the difference between synthetic leather and a habit) including surface has obvious irregular pattern and natural pores, hardy folding, breathable perspiration performance is good; Leather shift membrane generally referred to as the natural and synthetic leather, natural leather fibre layer on surface of lower level of loose meat on artificial surface layer, and its grain pattern similar to natural leather, but no pore, feel is hard, but the waterproof performance is good.
2 touch: feel is plump and full of elasticity, touch no cold feeling for leather, feel is hard, have a cool feeling mostly leather shift membrane.
Re-understanding section observation: leather section had no obvious film layer, with the hand scraping the bottom base will find hairs and the more the more longer, this is the most obvious fiber base (base) of genuine leather performance; Leather leather shift membrane is in natural leather lower loose meat or fiber grinding surface fiber layer, the adhesion, high pressure with adhesive to form sheet after artificial surface layer, with blade scratch the surface, some surface layer can be the small piece of peel.
2, production process: the domestic safety shoes production process points: moulding, injection, adhesive, seam. Injection class safety shoes, lightweight soles and uppers high viscosity, outsole usually adopts polyurethane materials, wear-resisting, waterproof; Sticky shoes is a kind of traditional process, the production history longer USES material such as rubber shoe soles commonly use glue and upper; Sew the price of the flat bottom shoe and moulding process cheaper belongs to low-grade products.
3, safety shoes shoes material: protect the toes safety shoes need to baotou steel, puncture safety shoes need to steel plate, anti-static shoes need antistatic agents and antistatic wire etc, protective performance test, observation, there is a need for understanding is in compliance with the supplier certification, product grades, shoes material quality is in line with the requirements of accessories.
4, product comparison: conventional comparison in 2 ways, one is the finished shoes sectional anatomy, appearance process, after comparing the safety shoes and longitudinal cut surface, can be observed clearly after the cut to help section plane section, the section of accessorial material, and the sole, steel head, the internal structure of steel plate and shoes and internal process, here it is worth mentioning that the density of single density sole section is the same, according to the comparison with the hand hard; Dual density soles, cross section can be observed clearly from top to bottom layer 2 its density, low density of the upper and lower density is high, according to the elastic is very good with the hand; If the soles for double color molding, but the same cross section density, also falls into the category of single density. 2. Try it on, try to compare safety shoes comfort, through the line, squatting, kick, stomp feel the comfort of the shoe.