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Attachment 4431
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Attachment 4432
Here are the images of the colour we would like to match.
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Attachment 4433
#1
Attachment 4431
#2
Attachment 4432
Here are the images of the colour we would like to match.
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Attachment 4433
Here is the recommended sequence of process:
1- A fatliquor moisture content is first taken with a leather moisture meter or a simple wood moisture meter to determine the percentage of existing fatliquor. The optimum fatliquor for leather suppleness is up to 14%. A reading on used and unused area may show different readings. This is a precaution meassure to take note and while during the wet cleaning process determine if those areas are absorbent. During degreasing and restorative cleaning some of the fatliquor be stripped as well and the leather may return stiffer. It is your discretion whether you would like to restore the leather structure and top up the difference in the lost of original fatliquor due to ageing and cleaning. If so this leather rejuvenating is done after degreasing.
2 – Accumulated soiling among the grooves shows as black soiling and is restorative clean with Prep-7.7 follows with Clean-3.8 to remove the sticky residue and Rinse-3.0 to test for a squeaky-feel. If tackiness is detected with wet fingers Acidifier-2.0 need to be used to pH balance the alkalinity of possible existing overexposure.
3- Body oil, grease and sweat may be penetrated in the body contact area and Degreaser-2.2 > Rinse-3.0 or Acidifier-2.0 is used to rinse and pH balanced it free from tackiness.
4 – Leather Rejuvenating is done with Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system which is optional entirely up to you.
5 – The semi-aniline or micro-pigmented system begins with Adhesor-73.
6 – Color matched Micro-54 is viscosity adjusted with Thickener-48 at a 10% mix to control flow.
7 – MicroTop-54S is a satin luster commonly for semi-aniline or micro-pigmented leathers.
8 – Protection of the finishes against wear and sticky soiling is done with Protector-B+
Let me know if you have questions?
Roger Koh
Leather Care Consultant
[email protected]
Recommended color refinishing system:
Attachment 4434
Leather DoctorŽ Kit Sa7.cl, micro-pigmented leather color refinishing kit is design for a holistic restoration approach to not only the finishes but also rejuvenating the leather for suppleness. Most of these repairs may range from missing finishes to abrading damages into the leather structure. Some expose areas may be contaminated with foreign soiling that includes conditioners, protectors, body oil, grease and sweat or alkaline overexposure from cleaners. A comprehensive repair for a long-term lasting solution will require a holistic approach to deal with both the exposed structure and surface finishes. The practical and functional softness and strength of the leather depends on the suppleness of the structure with average thickness between 0.9 to 1.2oz. As leather ages the percentage of fatliquor diminishes from the original of up to 14%. The remaining percentage of fatliquor read with a leather moisture meter or wood moisture meter will determine its suppleness from stiffness, creases and wrinkles and from ripping and cracking. If the leather is absorbent especially the wear areas it is recommended that the fatliquor content be top-up prior to the next phase of refinishing. The aesthetic aspect of the leather finishes averages 0.02mm (or 20 micron) in thickness for practical compressing and flexing from cracking. So a thin finishes will withstand better stress than a thicker finishes. A leather-safe restoration system begins by stripping with Stripper-2.3 and rinsing with Rinse-3.0. Degreasing with Degreaser-2.2 follows with Acidifier-2.0 for body contact areas. A wet finger testing for squeaky feel will determine the pH chemistry integrity of the leather, otherwise a tacky or slimy feel will need Acidifier-2.0 to further pH balanced it. The suffix numbers of these products denotes their pH value for recharging the protein fiber ionic positive besides removing of foreign contamination. The leather pH integrity is revitalizes once the ionic attraction between the positive protein fiber and its negative leather constituents like the tanning agent and fatliquor (fat, oil and water) is initiated. Leather rejuvenating system for softness and strength is accomplishes with Hydrator-3.3 follows with Fatliquor-5.0. Surface uneven absorption is seals with Adhesor-73 to reduce the need for color over-coating thus increase its flexibility and stretchability from premature cracking. Matching color Micro-54 viscosity is adjusted with a 10% Thickener-48 for better flow control especially for vertical section. MicroTop-54S satin luster is common for semi-aniline leathers. Protector-B+ imparts a non-stick rub-resistant surface with a buttery feel, reduces noises that translate into less friction wear. As the leather surface is well lubricated it reduces compression when comes to heavy body contact thus reduces compressed creases and wrinkles.
Instruction:
Stripping Existing Deteriorating Finishes:
1. Cover and tape off frames, trims and protect flooring.
2. Mist sprays Stripper-2.3, Eraser-4 scrub with help of 2000-grit sandpaper feathering out seamlessly and towel extract for an even appearance.
Degreasing:
1. Shake Degreaser-2.2 to gel prior to use with a repeat shake and rest until it gels.
2. Transfer to Eraser-4; agitate to saturate the stain, feather out to the entire section.
3. Towel extracts suspended soiling after 10 to 30 minutes or before it dries until it shows clean.
4. Spray Acidifier-2.0, towel extract until it shows clean to a healthy squeak.
Hydrating:
1. Spray Hydrator-3.3 saturating the stain area and feather out for an even appearance.
2. Covering with tissue paper without airspace to trap wick up stains instead of remaining on the leather surface as it dries.
3. Peel tissue paper when crispy dry and use Eraser-4 to erase surface residue prior to fat and oil replenishing.
Fat and Oil Replenishing:
1. Spray Hydrator-3.3 to precondition the leather prior to fat and oil replenishing.
2. Spray Fatliquor-5.0 and redistribute with foam brush until saturation.
3. Repeat application each time water contents evaporate until fully saturated.
4. Drive remaining surface remnants free of milky fat and oil until it turns clear with Hydrator-3.3.
5. Allow natural drying for extra softness.
Dry Prep:
1. Erase wick-up residue with Eraser-4 prior to repairs.
Adhesion Promotion Coating:
1. Apply Adhesor-73 by foam brush or horsehair Brush-1 to seal surface uneven absorption rate and promote adhesion simultaneously. Excess is wipe with a lint free towel to reduce surface built-up and until towel shows clean of deteriorated existing finishes.
Color Coating:
1. Matching Micro-54 color is viscosity adjusted with adding 10% of Thickener-48 for flow control.
2. Pigment color is applied with bristle varnishing brush or airbrushing for professional result.
3. Fine atomize dispersion with film forming technique is achieve with 80 to 100psi of continuous clean air pressure.
4. Light film forming spray is preferred and let dry in between coats to satisfaction.
Topcoating:
1. MicroTop-54S satin luster is shaken well and apply by bristle varnishing brush or airbrushing for professional result.
2. Use lint free paper towel to even out drips and streaks.
3. Speed dries between coats with help of heat blower or hair dryer.
4. 2000-grit sanding may applies to improve touch and appearance.
Rub-Resistant Protection:
1. Mist sprays Protector-B+ redistribute with a foam brush / paper towel and ready for use when dry.
Kit Content and Product Description:
Leather DoctorŽ Stripper-2.3 (120ml)
Leather DoctorŽ Stripper-2.3 is a pH 2.3 residue free hydrocarbon formulated duality leather finish stripper with bleeding control. It is use to remove existing old finishes or overspray for all leather types.
Leather DoctorŽ Rinse-3.0 (250ml)
Leather DoctorŽ Rinse-3.0 is a pH 3.0 waterbased leather-safe universal rinse for all leather types that include pigmented, aniline, vachetta, nubuck and suede. It is to removes suspended soiling by towel extraction while neutralizing harmful alkaline residues and charging the protein fiber ionic positive to increase the attraction between the ionic negative leather constituent like the tanning agent, dyestuff and fatliquor.
Leather DoctorŽ Degreaser-2.2 (120ml)
Leather DoctorŽ Degreaser-2.2 is a pH 2.2 leather-safe waterbased degreaser with dye bleeding control. It is design for degreasing leather of penetrated oil, grease and sweat stains from skin, and hair contact, especially the headrest and armrest of upholstery, collar and cuffs of garment, handles of bag including steering wheel. It works best in conjunction with Rinse-3.0 to rinse emulsified soiling or Acidifier-2.0 for rinsing, bleeding control and pH balancing sweaty contamination from leather denaturing into rawhide. This universal leather degreaser is for all leather types including the common pigmented, aniline, vachetta, nubuck and suede.
Leather DoctorŽ Acidifier-2.0 (250ml)
Leather DoctorŽ Acidifier-2.0 is a waterbased pH 2.0 leather acidifier designs for controlling dye bleeding in conjunction with Degreaser-2.2 in extreme prolong oil, grease and sweat decontamination system. As a standalone, it is for pH balancing alkaline overexposure that manifest as marks, streaks, brightness and tackiness. This universal acidifier is for all leather types including pigmented, aniline, vachetta, nubuck, suede, hair-on-hide and woolskin leather types.
Leather DoctorŽ Hydrator-3.3 (250ml)
Leather DoctorŽ Hydrator-3.3 is a waterbased pH 3.3 leather-safe hydrator. It is a fatliquor preconditioner with multi functional abilities. Surface application is primary to check for even surface tension free of blotchiness prior to fatliquor replenishing. Structural application will require saturating to an optimum level with moisture oozing out when gently pressed between thumb and fingers. The multi functional abilities include: a) To check for surface tension for an even appearance free from blotchiness prior to fatliquor replenishing. b) To plumps, relaxes and separates crushed, shrunk and stick together fibrils for manipulating away-unwanted creases and wrinkles. c) To clean the leather of structural foreign contamination, the plump and limp leather is squeeze with towel laid between the leather and a smooth spatula or equivalent. d) To rectify alkaline overexposure areas by facilitating colloidal water movement to redistribute the leather constituents from surrounding areas. e) To activate the dormant dyestuff within the leather structure for color refreshing. f) To facilitates colloidal water movement within the inter-fibrillary spaces for wicking foreign soiling particulates to resurface. g) To stabilize, pH balance and charge the protein fiber below its iso-electric point (pI) ionic positive to hydrogen bond with the ionic negative fatliquor more effectively. This universal Hydrator-3.3 is for all leather types including pigmented, aniline, vachetta, nubuck, suede, hair-on-hide and woolskin.
Leather DoctorŽ Fatliquor-5.0 (250ml)
Leather DoctorŽ Fatliquor-5.0, a micro emulsion of fat, oil and water is an anionic charged pH 5.0 fatliquor for rejuvenating all leather types. It relaxes coarse breaks, creases and wrinkles enhance suppleness and prevent cracking. It softens the leather with stretchability, compressibility and flexibility, while enhancing its rip tensile strength greatly. It is for replenishing the original fat and oil that diminishes thru sun-bleaching, ageing, heat and alkaline overexposure or cleaning. On application, the water-encased molecule breaks free when hydrogen bond attraction takes place between the fat and oil with the protein fiber. The excess free water content wicks out leaving a breathing space behind for leather natural transpiration. The fat plumps the leather with fullness from easily collapsing into creases and wrinkles during stress or flex, while the oil lubricates the fibers so that they slide over one another smoothly like millions of inter-connecting hinges. Thus helps to keep leather at its optimum physical performance and prevent premature ageing. This universal Fatliquor-5.0 is for all leather types including pigmented, aniline, vachetta, nubuck, suede, hair-on-hide and woolskin.
Leather Approximate Quantity or Percentage of Fatliquor:
The quantities of fatliquor (fat and oil) contents retained in the leather after an universal tannery fatliquoring process may varies up to 14% depending on the leather types and it usage. This percentage drops as the fat and oil content diminishes or leaches through ageing, water, heat or chemical overexposure. Leather rejuvenating or fatliquor replenishing is base on weight of the leather in relation to the percentage of remaining fatliquor. A simple calculation of percentage of fatliquor topping up requirement would be as follows: If the weight of the leather in question is 100gm and fatliquor (fat and oil) content meter reading is less than 1%. By applying 80gm of Fatliquor-5.0 to it will deliver an end result incremental of 13.3% fatliquor when dry as the 66.6% water contents evaporates. In the leather rejuvenating Hydrator-3.3 > Fatliquor-5.0 > Hydrator-3.3 system, Hydrator-3.3 plays an important role by relaxing, opening up the inter-fibrillary spaces, facilitating and redistributing colloidal water movement, protonating and doing all the pre-conditioning work prior to fatliquoring including cleaning up any excess surface remnants to have a sticky-free surface. In practice the ratio for Hydrator-3.3 is 2 to 1 of Fatliquor-5.0. It works out to be approximately 160gm of Hydrator-3.3 plus 80gm of Fatliquor-5.0 to replenish a 100gm dry leather from less than 1% back to the original tannery up to 14% fatliquor content.
Leather DoctorŽ Adhesor-73 (60ml)
Leather DoctorŽ Adhesor-73 is an auxiliary for refinishing pigmented, aniline, bicast and simulated leathers. This is a water based compact resin adhesion promoter for: a) Smooth abraded surfaces. b) Removing Deteriorated Existing Finishes. c) Activate Aniline Dyestuff. d) Ensure Proper Sealing and Adhesion Promotion.
Leather DoctorŽ Micro-54 (60ml)
Leather DoctorŽ Micro-54 is developed for micro pigmented leathers also known as semi-aniline. This is a waterbased compact resin blend high performance UV fade resistant pigment color coat. MicroTop-54 is the matching sealing topcoat in this pigment series system. Sixteen (16) standard colors are available for direct application or mix to match to produce a secondary or tertiary color.
Leather DoctorŽ Thickener-48 (7ml)
Leather DoctorŽ Thickener-48 is an auxiliary waterbased thickening agent to stabilize color during spraying. It is to adjust the flow of color to improve hold-up especially on vertical panels and antiquing two-tone fashion leathers. It is highly effective and maintains the viscosity over the period of use with a mix of up to 10% by weight.
Leather DoctorŽ MicroTop-54S (60ml)
Leather DoctorŽ MicroTop-54 is a waterbased soft polyurethane topcoat design for micro-pigmented also known as semi-aniline leathers. This is lightfast and non-yellowing, has excellent flow and leveling properties, recoatable and forms a flexible tough film. Luster level is available in Matte, Gloss and Satin.
Leather DoctorŽ Protector-B+ (120ml)
Leather DoctorŽ Protector-B+, a buttery-feel with a classic leather scent is design for pigmented, aniline and nubuck oil pull-up leather types. This is a non-film forming, non-stick, rub-resistant protector that enhances a soft natural tactile feel for imparting a breathable barrier essentially to shield the detrimental effects of sticky soiling and preventing the too common pesky ballpoint from ever ready rolling out its nasty ink. Moreover, for helping to release those tenacious blue jeans dye-transfer stains obviously on light colored leathers easily. Its natural buttery-feel protection increases the leather resistance to wet and dry rubs, thus reduce stretch; scuff and abrasion with reduce friction squeaks.
Leather Eraser-4 (1 pc)
This is a 2˝ x 2ź x ž inch foam rubber sponge block with a crepe side for effective dry/wet soil removal.
Leather Brush-1 (1 pc)
This horsehair detailing brush is designed ergonomically to be an extension of our hand with a sturdy grooved grip. It is design to produce effective result easily and efficiently. It is recommend for all smooth leather for a soft and scratch-free cleaning. Its length is 7 inches with a three-row bristle 1˝ inches cleaning head.
3 inch Poly-Brush (2 pc)
This is a dense foam that resists tearing and shredding and carries more material. It has a solid wood handle that allows greater control for quality results. It is for controlling and spreading fatliquor for a more even distribution.
Paper Towel Rags (5 pc)
This rag works like cloth, lint free, highly absorbent and washable. General application is for extracting suspended soiling or for spreading hydrator, fatliquor or protector. It is for both dye and topcoat padding for smooth leathers.