Description

Leather Ink Stain Remover 7.7 by Leather Doctor® is formulated to safely break down and release the grease component of ballpoint ink on non-absorbent, pigmented, and finished leathers.

Professional Grease-Phase Ink Removal for Non-Absorbent Leather
Ballpoint ink contains two components:

Grease (oil-based carrier)
Dye (colorant residue)

Ink 7.7 targets and removes the grease phase first.
Once released, the remaining dye residue is treated with Dye 7.9 for complete ink removal — all within the controlled Leather-Safe™ System.

Unlike harsh solvent-based removers, Ink 7.7 relies on controlled dwell time and reverse transfer technology to protect the leather finish.

How Ink 7.7 Works

Ink 7.7 performs through:

Controlled dwell time
Deep penetration
Lubrication of ink particles
Suspension of contaminants
Reverse-transfer wicking

This method safely lifts ink without softening, swelling, or damaging leather topcoats, which commonly occurs with aggressive solvents.

Reverse Transfer Technique

(For Ink 7.7 and Dye 7.9 Applications)

1️⃣ Step 1 – Surface Preparation

Place a stretchable Towel 5 directly over the ink stain.
The towel acts as an extension of the leather surface and serves as the absorbent transfer medium.

2️⃣ Step 2 – Application

Apply Ink 7.7 onto the towel using Brush 1.
Work the solution through the towel while squeezing out air bubbles to ensure tight surface contact.

3️⃣ Step 3 – Dwell & Suspension

Allow sufficient dwell time.
Ink 7.7 penetrates through the finish, lubricates the grease phase, and suspends it.

4️⃣ Step 4 – Reverse Transfer

The suspended ink is wicked upward into the towel.
Replace towel sections and repeat until no further transfer is visible.

Repeat until:

The towel remains clean
No additional ink transfers
The stain is fully removed

Removing the Remaining Dye Component

(Using Dye 7.9)

Once the grease phase is eliminated, a faint dye shadow may remain.

Follow the same Reverse Transfer Technique using Dye 7.9:

Place fresh stretchable Towel 5 over the stain.
Apply Dye 7.9 with Brush 1.
Remove air pockets for tight contact.
Allow dwell time.
Repeat until the towel lifts all remaining dye residue.

This staged approach ensures controlled, finish-safe ink removal.

Final Cleaning & Residue Removal

Removing Sticky Residue

After stain removal:

Clean the area with Soft Cleaner 3.8
Rinse with Rinse 3.0

This removes any remaining treatment residue and prevents surface tackiness.

pH Balancing & Neutralization

Ink 7.7 operates at an alkaline level during treatment. After successful stain removal, the leather must be rebalanced.

Acidifier 2.0 (pH 2.0)

Acidifier 2.0 functions as:

Neutralizer
pH balancer
Final rinse

It restores leather from alkaline exposure (pH 7.7 range) back to its healthy natural range of pH 3–5.

You will physically notice the difference:

Sticky → Neutralized
Tacky → Squeaky clean
Disturbed → Restored balance

This critical step prevents long-term damage, stiffness, or finish instability.

Protection – Preventing Future Ink Stains

After the leather is fully dry, apply Conditioner B.

Benefits:

Creates a micro non-stick protection
Controls ball point ink dispersion
Makes future cleanup significantly easier
Maintains supple buttery feel

Summary Workflow

Break down grease component → Ink 7.7
Remove remaining dye shadow → Dye 7.9
Clean residue → Soft Cleaner 3.8 + Rinse 3.0
Neutralize & pH balance → Acidifier 2.0
Protect → Conditioner B

Why This System Works

✅ Targets ink in its two-phase structure
✅ Avoids aggressive solvent damage
✅ Uses reverse-transfer technology
✅ Maintains leather’s structural integrity
✅ Restores proper pH balance
✅ Leaves leather clean, balanced, and protected