Embossed leathers:
This is pigmented finished leather that has been embossed from cowhide to look like alligator skin.
Embossed leather is stiffer by “hand” than most non-embossed leather; due to the compression of the print.
Embossing done on “Vegetable-Tanned” leathers has more permanency than from “Chrome-Aluminum” tannage; whereas “Chrome” alone tannage would be the poorer in the print permanency and the embossing may diminished from usage or cleaning.
Anyway the above is a little background of how the embossing comes from; most likely it is done with the “Chrome-Aluminum” tanned leathers in this case as it is in pigmented finishing.
Embossing of this type is done with plate embossing machine.
Pigmented Finish:
Upholstery pigmented finish may comes in two version; standard and the higher-end pigmented leather known as Semi-Aniline.
The semi-aniline leathers can be generally distinguished by the reverse side being dyed closed to the finish side.
Another unknown feature is that most of the semi-aniline leathers are full-grain leathers; rather than from the top-grain corrected leathers for the standard pigmented leathers. In another word a semi-aniline leather piece of furniture will cost more than a standard leather of the same design.
Recommendation:
For old and heavily used leathers where micro-cracks (see with magnifying glass) have developed to the finish; It's to be treated as a semi-aniline leathers; as the leather then becomes semi-absorbent; that can be observed the darkening effect once the leather is wet during cleaning.
Level of Soiling:
This soiling condition requires a corrective or restorative cleaning and the selection of the sequence of cleaning process should be able to deliver the result; stripping the foreign contamination down to the original OEM finish. It may not reveal the true color if the finish has gone through a color change due to hydrolysation and oxidation; just like most white plastic material that turns yellow near kitchen areas.
Specialty Leather Problem Solving – Dye Transfer from Denim:
The cleaning process would be the same as cleaning accumulated soiling; however with great emphasis on the proper dwelling-time.
Bleaching will be the last resort to improve the situation especially if the color is white or off white.
Follow this Problem Solving Guide for Semi-Aniline Leathers:
Semi-Aniline Leather Problem Solving Guide
http://i300.photobucket.com/albums/nn4/Rogerkoh/SemiAniline-LPG.jpg
This is the leather care kit for Semi-Aniline leathers
http://i300.photobucket.com/albums/nn4/Rogerkoh/Semi-AnilineKit.jpg
Semi-Aniline Leather Care Kit-SA.c (S250.p)
Contents:
Prep-7.7 - 60ml
Cleaner-3.8 - 250ml
Rinse-3.0 - 250ml
Leather Scent-B - 120ml
Hydrator-3.3 - 250ml
Fatliquor-5.0 - 250ml
Leather Horsehair Brush-1 - 1pc
3” Poly-Brush® - 1pc
Washable Rags - 5pcs
I will show a picture of the: Leather Ink & Dye Stain Removal (Pigmented) Kit-PIS.s
I’m looking forward to your query.
Roger Koh
[email protected]