How to know the classify the artificial leather
According to its composition:
The first is PVC (polyvinyl chloride). After combustion,
the products include water, carbon dioxide and chlorinated compounds, even
chlorine;
The second is PE (polyethylene), which only produces water
and carbon dioxide theoretically after full combustion;
The third, and most common, is called PU leather
(polyurethane). The products after full combustion include water, carbon
dioxide, nitrogen, and a small amount of nitrogen containing compounds.
By manufacturing method:
genuine leather:
“Genuine leather” is a common word in the leather
product market, which is a customary name for natural leather to distinguish
synthetic leather. In consumers’ concept, “genuine leather” also has
the meaning of non fake. Animal leather is a kind of natural leather, that is,
we often say leather. It is a kind of leather material with various
characteristics, strength, feel, color and pattern made of animal (raw hide)
after tanning and processing in a leather factory. It is a necessary material
for modern leather products.
The processing process of dermal animal leather is very
complex, and the finished leather needs to go through dozens of processes: raw
leather – soaking – meat removal – degreasing – unhairing – soaking – alkali –
swelling – lime removal – softening – pickling – tanning – layering – shaving –
retanning – neutralization – dyeing – oiling – filling – drying – finishing –
finishing – finished leather. There are also many kinds of leather, such as
sheep leather, cattle leather, horse leather, snake leather, pig leather,
crocodile leather, etc.
Among them, cow hide, sheep hide and pig hide are the three
major raw materials used in leather making.
Regenerated leather:
It is made by crushing the waste skins and leather scraps
of various animals and blending chemical raw materials. Its surface processing
technology is the same as that of the trimmed leather and embossed leather of
genuine leather. Its characteristics are that the edges of the leather sheet
are neat, the utilization rate is high, and the price is cheap; However, the
leather body is generally thick and has poor strength, so it is only suitable
for making affordable briefcases, pull rod bags, golf club sleeves and other
finalized products and affordable belts. The fiber structure in the
longitudinal section is uniform and consistent, which can identify the
solidification effect of mixed fibers of liquid substances.