To understand how leather has to know how to distinguish between true and false, “leather†is the most common word in the leather goods industry. It is also a customary name for people to distinguish between synthetic leather and leather. The variety of leather is different and the quality varies. There is also a great disparity. Here are some common ways to identify the dermis First, feel If the surface of the leather is touched by hand, it feels smooth (the grain is processed into thick skin), and the soft, full and elastic feeling is the leather. Second, the eye It is mainly used to identify the type of leather and the quality of leather grain, observe the surface of the dermis has more obvious pores and patterns, and synthetic leather, although it also imitates pores, but it is not really clear. In addition, the opposite side of the synthetic leather has a layer of textiles as the bottom plate. This textile bottom plate is used to increase its tensile strength, and the reverse side of the leather is not such a layer of textiles. This identification is the simplest and most practical method. Third, smell Good quality skin does not have any unusual odor. All dermis have the smell of leather. If there is a pungent odor, it may be handled badly during the tanning process and a certain chemical raw material is used excessively. Fourth, light The odor of the genuine leather is almost the same as the odor after the hair is ignited, and it does not scab after burning. It can be grinded with a finger; the artificial leather emits a pungent odor and burns. China Labor Insurance Network
Coal Activated Carbon For Recycling Of Solvents
Using high quality coal as raw
material for solvent recovery, coal is mainly used in the recovery of
benzene, toluene, ether, alcohols, gasoline, three, methyl chloride,
organic solvents and other hydrocarbons, as well as the vapor recovery
of hydrocarbon compounds.
Use: Used in the seperation and recycling of aethers,
ketons, alcohols, tetrahydrofuran, methylene dichloride,
trichloromethane, trichloroethylene, chlorinated polyvinyl chloride,
carbon bisulfide, benzene, gasoline etc.
Spec.:
Coal Activated Carbon For Recycling Of Solvents Coal Activated Carbon For Recycling Of Solvents,Activated Charcoal,Coal Based Activate Carbon,Coal Bulk Activated Carbon SHIZUISHAN ZhongShi activated carbon co,.ltd , https://www.zscarbonchina.com
ZH-2080
ZH-2090
ZH-20100
ZH-3080
ZH-3090
ZH-30100
ZH-4080
ZH-4090
ZH-40100
ZH-5070
ZH-6070
ZH-7070
How to distinguish between genuine and fake leather?
Model NO.
Moisture(%)
Strength(%)
Ash(%)
carbon tetrachloride(%)
Benzene absorption(%)
Packing density (g/L)
Ignition point(°C)
Grain diameter(mm)
≤3
≥93
≤12
≥80
≥44
470±20
≥350
Φ2.0
≤3
≥90
≤12
≥90
≥50
440±20
≥350
Φ2.0
≤3
≥90
≤14
≥100
≥55
370±20
≥350
Φ2.0
≤3
≥93
≤12
≥80
≥44
460±20
≥350
Φ3.0
≤3
≥90
≤12
≥90
≥50
450±20
≥350
Φ3.0
≤3
≥90
≤14
≥1000
≥55
400±20
≥350
Φ3.0
≤3
≥95
≤10
≥80
≥44
450±20
≥350
Φ4.0
≤3
≥93
≤12
≥90
≥50
420±20
≥350
Φ4.0
≤3
≥90
≤14
≥100
≥55
370±20
≥350
Φ4.0
≤3
≥90
≤10
≥70
≥38
460±20
≥350
Φ5.0
≤3
≥90
≤10
≥70
≥38
450±20
≥350
Φ6.0
≤3
≥90
≤10
≥70
≥38
440±20
≥350
Φ7.0