Aniline, semi-aniline and pigmented are terms used to describe leather finishes. They help explain the relationship between the surface treatment and the grain beneath it. For a bag, belt or watch strap, the useful next step is to connect that description to a particular component and its care instructions.
Read the three finish descriptions
The Leather Working Group’s List of Definitions, version 1.1 distinguishes these terms by pigment coverage and the visibility of the natural grain. The following summary follows its finishing definitions on page 4.
| Term | What the definition describes | Question for an accessory record |
|---|---|---|
| Aniline leather | Natural grain remains clearly visible; the surface may be uncoated or have a coating without pigment. | What finish or protective treatment does the maker specify? |
| Semi-aniline leather | A finish contains a small amount of pigment while leaving the natural grain clearly visible. | Which component has this finish, and what care is specified? |
| Pigmented leather | A pigment-containing finish conceals the underlying natural grain or surface. | What material is beneath the finish, and which instructions apply? |
Aniline therefore does not necessarily mean completely uncoated. Likewise, the distinction is not simply “dyed versus undyed”. Preserve the maker’s exact finish wording instead of replacing it with a broader description such as natural leather.
Keep finish, hide layer and tanning separate
A useful specification has separate fields for the leather material, finish and tanning information. For example, “aniline leather exterior” supplies a finish description and a location, but leaves the lining, thickness and tanning method unanswered. It does not become a complete construction record by sounding specific.
The guide to full-grain, corrected-grain and split leather addresses hide layers and grain treatment. The guide to tanning and finishing separates another part of the production description. Use those fields alongside the finish name when the maker provides them.
For a mixed-material accessory, keep the body, handles, trim and lining in separate entries. A finish claim for the exterior should stay attached to that exterior. Leave other components unspecified until there is information about them.
Use photographs to document appearance
A photograph can record colour, gloss, texture and visible wear under particular lighting. It does not supply a finish formulation. If a seller has not identified the finish, describe what is visible and ask for the missing specification.
Natural grain in a technical definition should also be distinguished from a decorative pattern mentioned in a listing. A croc-pattern name describes an appearance; it does not answer whether the finish is aniline or pigmented. The embossed-leather and croc-pattern guide covers the separate limits of pattern-based identification.
For historical material, retain the wording of the original source. If an earlier report only says leather, record the finish as unknown. A current terminology reference cannot recover a missing specification for a particular Möhel model.
Connect the finish to the maker’s care guidance
Leather Naturally’s care guide explains that aniline leather absorbs liquids more readily than pigmented leather. It also warns that treatments can change colour and recommends testing appropriate products in an unseen area. These differences make the documented finish relevant to a care decision.
They do not establish a whole-bag waterproof rating or approve one cleaner for all products carrying the same finish name. Ask for instructions for the actual item, including any restrictions around stitching, painted edges, lining and hardware.
Keep identification as a documentation task: use the maker’s information rather than adding water or solvent to an uncertain surface. The material-and-finish care guide explains how to handle product exclusions and an unidentified finish before choosing a treatment.
Build a finish record you can trace
- Save the item name, model, exact finish wording, source address and date.
- Identify the component covered by the description: outer panel, strap upper, trim, lining or another part.
- Record photographs and existing condition separately from the maker’s material claims. Mark an undocumented finish as unknown.
- Keep the relevant care instructions with the record and ask the maker to clarify any mismatch between the item and the proposed treatment.
This guide explains terminology and a recording method. No finish was identified by testing a leather sample, and no treatment was evaluated here. Sources were reviewed on 16 October 2026. Browse the materials and finishes guides for related explanations.