Pigmented (Mono-Tone) - protected sofa-with ink on two cushions - for 'Hunter' [Archive]

Roger Koh

09-30-2015, 10:53 AM

Ink Stain Removal on Pigmented (monotone) Leathers:
Pigmented leathers are opaque monotone color finishes with water droplet pooling on the surface when tested. Stain will slowly penetrate into the finishes and easier to remove them when fresh. Aged and compounded fail attempt may pose more difficulties as the molecular ink structure may have been altered from the original. Weak and worn finishes will also me more difficult as the topcoat coat may be weaken and surface becomes semi-absorbent making stain penetrate easier. Removal is first done with Prep-7.7 until the stain is completely removed; otherwise Bleach-9.9 is added as booster for the Prep-7.7 for a final treatment. Remaining sticky residue is removed with Clean-3.8 > Rinse-3.0 and Acidifier-2.0 as the last treatment when Bleach-9.9 is used. Acidifier-2.0 is used to pH balance or neutralizes the high pH value of the Bleach-9.9 (pH 9.9).

Testing with Prep-7.7:
1) Cut out a piece of Towel-T5 from the kit about thumb size and soak it with Prep-7.7. 2) Test it on the worst stains area and inspects at regular interval with fresh application until the stain is gone. 3) Observe if there is sign of stain removal, if it does, the stain will eventually be removed with repeat application. 4) To secure the test patch from dislodging wrapped it over with see through cling wrap. 5) When stain is removed with satisfaction, clean off the sticky residue with Clean-3.8 follows with Rinse-3.0 until a squeaky-feel. 6) The lack of a healthy squeaky-feel may be the result of worn out topcoat, reapplication with MicroTop-54M, S or G is recommended. 7) Apply a soak out paper towel with Acidifier-2.0 over the area until dry to strengthen the finish prior to topcoat application. 8) When test after 72 hours shows poor response, Bleach-9.9 may be use to boost the Prep-7.7.

Mixing Ratio (1: 2: 2):
1) A mixing ratio guide by weight is 1 part Bleach-9.9: 2 parts Prep-7.7: 2 parts Hot water. 2) From the mixing bottle, a small test portion Bleach-9.9 is first add into the bottle follow with Prep-7.7 and stirring into a paste. 3) Hot water is drip into the bottle using the pipette to activate the bleach and stirring into a creamy paste.

Testing with Bleach-9.9:
1) Apply onto an inconspicuous or hidden area and leave it for a 12 hours inspection for discoloration. 2) Remove residue with damp wiping and cleaning sticky residue with Clean-3.8 follows with Rinse-3.0. 3) Cut out a paper towel, soak with Acidifier-2.0 and place on the test spot until naturally dry to neutralize the alkalinity.

Note:
If testing with Bleach-9.9 bleach shows side effect, abandon and continue only with Prep-7.7. In actual application repeat testing successes to the actual application.

Instruction:

Phase-1 Prep-7.7:
1). Cut Towel-T5 a little larger than the stain area. 2) Saturate with Prep-7.7 liberally and place over the stain. 3) Leave up to 72hours with regular inspection as the released and suspended stain will “reverse transfer” to the more absorbent towel. 4) When towel is soiled and the stain is not entire removed repeat above 1), 2) & 3) until the stain is entirely removed.

Phase-2 Bleach-9.9 + Prep-7.7:

1). When the stain is not removed after 72hours, Bleach-9.9 is added accordingly to the Prep-7.7 and apply to the stain and leave it for 8hrs for inspection. When satisfaction proceed with Phase-3.

Phase-3 Clean-3.8 > Rinse-3.0 > Acidifier-2.0

1). To remove the remaining sticky residue Clean-3.8 > Rinse-3.0 is used for Phase-1. Additional Acidifier-2.0 is used in Phase-2, thus Clean-3.8 > Rinse-3.0 > Acidifier-2.0 to remove any tacky or sticky feel and let dry.

Phase-4 Protector-B
Protector-B (scentless) or Protector-B+ (leather-scented) impart a non-stick surface for easier cleaning and stain removal.

Show pictures if you are doing it correctly!

Products mentioned are found in this Kit-P7.di
http://www.leatherdoctor.com/kit-p7-di-leather-dye-ink-stain-removal-kit/

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