Difference between revisions of "Barrel pigmentation - Drum pigmentation"
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==What is a barrel or drum pigmentation?== | ==What is a barrel or drum pigmentation?== | ||
| − | "Barrel pigmentation" and "Drum pigmentation" are terms that occasionally feature in leather descriptions. | + | "Barrel pigmentation" and "Drum pigmentation" are terms that occasionally feature in leather descriptions. Normally, leather is soaked in barrels filled with [[leather colour#Dyed leather|dyes]] and then coated with a [[finish|pigment-containing colour]] on the surface for protection. |
| − | + | Barrel pigmentation is carried out in the [[tanning#re-tanning|retanning]] process. These very fine pigments are applied without binders so that the leather absorbs them to achieve equal colour coverage on the surface without closing the [[Leather hair pores - Hair follicles|pores]]. | |
| − | + | A disadvantage of drum pigmentation can be color shedding on the [[flesh side]], but this only matters if that side is processed open. Barrel pigmentation is often used on leathers with difficult shades. These include yellow, orange, black or white. The colors become more even and deeper due to the barrel pigmentation. | |
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| + | If you put a classic [[finish|pigment based finish]] and binder in a drum with leather, the leather would be saturated with binder and feel like rubber or plastic. | ||
The barrel-pigmented [[car leather#BMW|BMW leather]] is described as [[aniline leather|porous smooth leather]] without a [[finish|pigment layer]] on the [[grain side]]. The leather samples for the BMW Merino are all provided with a [[finish|pigmentation]]. They are not [[aniline leather]] but in fact [[Semi-aniline|semi-aniline leather]]. | The barrel-pigmented [[car leather#BMW|BMW leather]] is described as [[aniline leather|porous smooth leather]] without a [[finish|pigment layer]] on the [[grain side]]. The leather samples for the BMW Merino are all provided with a [[finish|pigmentation]]. They are not [[aniline leather]] but in fact [[Semi-aniline|semi-aniline leather]]. | ||
Revision as of 07:25, 11 July 2023
What is a barrel or drum pigmentation?
"Barrel pigmentation" and "Drum pigmentation" are terms that occasionally feature in leather descriptions. Normally, leather is soaked in barrels filled with dyes and then coated with a pigment-containing colour on the surface for protection.
Barrel pigmentation is carried out in the retanning process. These very fine pigments are applied without binders so that the leather absorbs them to achieve equal colour coverage on the surface without closing the pores.
A disadvantage of drum pigmentation can be color shedding on the flesh side, but this only matters if that side is processed open. Barrel pigmentation is often used on leathers with difficult shades. These include yellow, orange, black or white. The colors become more even and deeper due to the barrel pigmentation.
If you put a classic pigment based finish and binder in a drum with leather, the leather would be saturated with binder and feel like rubber or plastic.
The barrel-pigmented BMW leather is described as porous smooth leather without a pigment layer on the grain side. The leather samples for the BMW Merino are all provided with a pigmentation. They are not aniline leather but in fact semi-aniline leather.
Previously known samples of leather with barrel pigmentation had colour coatings on the surface when tested with a solvent. It was therefore not aniline leather, but semi aniline leather. Whether these leathers are softer or more beautiful than semi-aniline leather without barrel pigmentation could not be determined.
Lavalina leather that is barrel-pigmented also has a top pigmentation, which probably does not come from the barrel. The picture on the right shows how the finish was removed with solvents.
As the information is not always clear, it is advisable to confirm the type of leather used in the application of the barrel pigmentation. If a real aniline leather is desired, examine more closely to make sure that is what is being offered.
Additional information
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