I was wondering what kind of leather you guys were talking about so here is the definition in case anyone is interested:
Semi-
aniline leather,
Semi-aniline leather is
leather, which is only slightly
pigmented (colour layer). The
natural leather grain and the
hair pores are not allowed to be concealed by the
pigmentation. These can e only be slightly protected and must remain visible. However, it should be noted that, depending on the
working steps in the
tannery, the natural grain pattern and hair pores remain more or less clearly visible. For example,
vacuum drying affects the visibility of the hair pores as compared to
drying by hanging. Nevertheless, it is still a semi-aniline. The natural grain must, however, be completely preserved and should not be
buffed. Semi-aniline leather is
soft and warm and feels very natural due to the less intense
coating and the absence of compression of the leather fibres by a strong
embossing. However, embossing is not completely forbidden when producing semi-aniline leather.
In contrast to
aniline leather, which is completely
porous and very sensitive, semi-anilines have better protection. The protection is by no means as strong as for
pigmented smooth leather, where the pigment layer acts as a barrier and the
hair pores are no longer recognisable. Such leathers are mostly
firmer and feel colder than semi-aniline leathers.
Since January 2016, there is another
type of leather defined and standardised in Europe called
aniline leather, refined. The characteristic of this leather means it is classed between
aniline leather and semi-aniline leather. . It has even less
pigmentation than semi-aniline. The
pore pattern is even more visible and the leather is even more natural than semi-aniline leather. However, this also means it is more sensitive than
aniline leather and less sensitive than semi-aniline leather.