1. The cloth comparison is easy to determine. The cloth used for making bags and clothes is different, that is, the blasting coefficient and toughness of the cloth must be very high. Some rare ones are denim, canvas, Oxford, linen, microfiber, etc.
2. At present, the rubber used in luggage factory is the most, and the rubber is known as natural leather. Since it is "natural", of course, it is changeable and diverse. Thickness, hardness, pattern, chemical composition, etc. In addition, you often hear PU leather and two-layer leather. PU leather and two-layer leather are actually rubber, not "real leather". Individual medium and old cowhide are too thick, and the leather processing factory will cut them into two or more pieces. The top piece maintaining the cortical characteristics and grain structure is called "top layer cowhide", while the second and third pieces are very thin and have no cortical plant protein structure and toughness. Therefore, in processing, it is necessary to add a layer of "Pu", that is, chemical rubber, which is called "PU skin" or two-layer skin. Today's skills can actually have "five layers". If the paint is bright, the chemical paint is called "lacquer skin".
3. The price of leather is absolutely expensive. We individually call the original skin of the first layer "genuine leather". It feels soft, textured, special and elastic. It recovers quickly after pressing the lines with your fingers.
