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Aniline leather is soft and natural. They are usually first treated with transparent dyestuff to make the grain and natural characteristics more visible. Modern tannery dyeing is done in a rotating drum in a continuous process follows with fatliquoring. When dried thereafter, the leather goes through another selection or grading to decide the best treatment to bring out their potential softness and natural look. Thus, further sub-divide into various varieties. However, the bulk of aniline leathers after dyeing may reveal uneven grain dye absorbency and too many faults, so that the variation in color over the entire grain surface is too great for many leather fabrications.
Varieties of aniline leathers may be referred to as “full sauvage aniline” with differing intensity of dye absorbency appearance.
Use this Aniline (A.fs) Full Sauvage as reference guide when comes to cleaning and restoration. Identify the problem from the left column and the top row the product recommended and the numbers is the sequence of steps. When leather have compound issue combine the soiling, stain and odor types as the cleaning phase-1 and the leather rejuvenating with Hydrator-3.3 > Fatliquor-5.0 as the second phase-2. Structural problem as third phase-3, Finishing as phase-4 and protection of the finishes as phase-5.
#Attachment 7686
Attachment 7687
http://www.leatherdoctor.com/kit-a7-...finishing-kit/
Leather DoctorŽ Kit-A7.cl - aniline leather dye refinishing kit is designed for dyestuff and topcoat refinishing from the simple sunlight fading to the severely sweat damages from body oil and grease. Most severely penetrated, prolonged and neglected stains show a darkening effect with a sticky feel have its topcoat and dyestuff probably deteriorated by the sweat. When the stain feels sticky, it is a sign of leather denaturing and reverting to rawhide from breaking of bonds with the tanning agent. When sign of color is transfer to a white towel, it indicates that the dyestuff has also break bonds with the protein fiber. When leather is stiff or shows signs of whitish residue migrating, it shows that the fatliquor is breaking bonds as well with the protein fiber. The main component of the leather protein fiber is amphoteric while the other constituents are not; shifting of the pH mainly caused from sweat to alkalinity affects the pH imbalance. To revert from denaturing into rawhide prior to topcoat refinishing, contaminated alkaline soiling is removed with Degreaser-2.2, a waterbased (pH 2.2) multifunctional degreaser that emulsifies greasy contamination besides controlling dye bleeding and charging the protein fiber ionic positive for strengthening the attraction between the ionic negative tanning agent, dyestuff and fatliquor. Deflocculated and suspended soiling is towel extracted, thereafter rinse and pH balanced with Acidifier-2.0 to prevent the leather from reverting to rawhide. When leather feels sticky or slimy it is a sign of leather denaturing, a squeaky feel when wet is a sign of a healthy leather. Hydrator-3.3 relaxes stiff leathers and removes surface tension free from surface blotchiness prior to fat and oil replenishing. Fat and oil is replenished with Fatliquor-5.0 to rejuvenate the leather for the desired suppleness when dry. Custom redyeing commences prior to topcoat refinishing. Protector-B imparts a non-stick rub-resistant protection with a buttery-feel that shield against sticky soiling and reduce friction noises. Protector-B+ is the classic leather scented version. Note that the mentioned product suffix number denotes its pH value in this holistic leather-safe aniline leathers dyestuff and topcoat refinishing system.
Do you think this much damage will cover with Aniline 76? Or should we order some Micro-54 too?
>>> Do you think this much damage will cover with Aniline-76?
No! The damages will not be cover up as Aniline-76 is a “transparent” dyestuff.
>>> Or should we order some Micro-54 too?
Yes! Micro-54 is an “opaque” pigment coloring, thus will cover up existing finishes damaged areas and continue to the entire piece to even out appearances prior to enriching it with the beauty of depth with Aniline-76 system.
Recommended refinishing sequence for better coverage is by: Adhesor-73 > Micro-54 > Aniline-76 > AnilineTop-76G/S > Protector-B/B+
Tips:
Micro-54 may have different in coatings to even out appearance.
Aniline-76 need consistence of coating to maintain even of appearance in this case.
Roger Koh
Leather Care System Formulator
Consultant / Practitioner / Instructor
web: www.leatherdoctor.com
forum: www.leathercleaningrestorationforum.com
email: [email protected]