Difference between revisions of "Porous leather"

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''[[Pull up leather - Greased leather - Waxed leather - Oiled leather|Pull up leather, greased leather, waxed leather and oiled leather]] is more or less open-pored.''
 
''[[Pull up leather - Greased leather - Waxed leather - Oiled leather|Pull up leather, greased leather, waxed leather and oiled leather]] is more or less open-pored.''
 
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Latest revision as of 18:54, 14 October 2022

LEATHER-DICTIONARY.jpg


Porous leather - Open-pored leather

For the cleaning and care of leather, as well as the sensitivity of leathers, the distinction is always made between porous and leather finished with a protective layer. Porous leather is highly sensitive to liquids which are easily absorbed, causing permanent stains.

To find out if leather is porous, simply rub a drop of water with your finger in an unseen area. If the drop penetrates into the leather, it is porous. In most cases, this area becomes darker. If the drop runs off, then it is not porous.

It is similar with wood. Unpainted wood is open-pored and liquids are drawn in and lacquered wooden surfaces are protected by the varnish against liquid penetration.


Gedeckt.jpg Wassertropfen-002.jpg Wassertropfen-003.jpg Wassertropfen-004.jpg

The first picture shows a drop of water on a pigmented cow hide. The drop does not enter. The other pictures show a drop of water entering porous smooth leather.

 

Nubuck - Suede

Nubuck and suede leather have a more or less fine-haired sanded surface and behave similar to textiles. Such surfaces are always porous.


Nubuk-002.jpg

Velour-04.jpg

Nubuck leather has a finer pile and suede leather has a coarser pile.

 

Porous smooth leather

The open-pored leathers include the porous smooth leather as well as all velvet-like leathers, such as nubuck and suede. The most porous smooth leather is aniline leather. On the other hand, leather coated with a film (including patent leather) is neither open-pored nor breathable.


Offenporig-001.jpg

Anilinoffen.jpg

Microscopic image of the surface of an aniline leather. The open pores of the skin, which are not protected by a colour layer, are clearly visible.

 

Pigmentierung-gepraegt-003.jpg

Pigmentierung-gepraegt-002.jpg Pigmentierung-gepraegt-001.jpg

Strongly pigmented leather.


Video about testing the porosity of smooth leather.


Partially porous smooth leather

There are leather types such as semi-aniline leather or oiled, waxed and greased leather, where the porosity differs. Only the cautious rub test (to avoid stains) in an unseen area helps to check whether the leather is porous or not. If moisture penetrates, caution is advised in daily handling as well as during cleaning and care.


E- Zwischenlager Fotoverzeichnis-Firma DATA2-FO Lederarten Semianilin Semianilin-Poren-01.jpg

VW-Tourareg-Individualleder-Fleck-01.jpg

The sensitivity of the lightly finished semi-aniline leather must be carefully tested.

Fettleder-04.JPG

Pull-Up-Leder-02.jpg

Pull up leather, greased leather, waxed leather and oiled leather is more or less open-pored.


Additional information


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