Technical Resources

Specialty Chemistry
Technical Data Sheets

Access comprehensive formulation control guidelines, preparation parameters, and chemical consumption metrics for electroplating and gravure sectors.

Certified Formulations QC Tested
001 Cupro Hard Powder 002 Dechro-A 003 Dechro-L 004 NF Micro-Pel
● Bath Calibration TDS
Prepared Standards: ASTM / ISO Compliant
QC Log Checked: ✓ 100% Passed
Last Calibration: Varanasi Lab Standard
Continuous Dosing Recommended

Cupro Hard Powder (001)

Additive values of consumption for hard sulphate copper plating bath.

Additive Values & Control Guidelines

The consumption values are dynamic and depend on the chosen hardness. For standard operations aiming for a hardness of 175 - 230 Vickers, the following values apply:
Operating ParameterSpecification Value / Standard
Bolster Up Additive200 - 250 ml per 1000 AH (Ampere Hours)
Preparation Rule40 g dry powder mix in 10 Litres DM (De-mineralized) water
Bath Operating Temp25°C to 40°C
Current Density20 - 40 Amp/dm²

Operational Note: Operational Note: Consumption values fluctuate based on the specific bath temperature and cylinder immersion levels. Regular, continuous dosing is highly recommended.

Dechro-A (002)

Electroplating dechroming agent formulation and operational settings.

Operational Settings

Formulation settings and operational parameters for Dechro-A stripping process.
ParameterOptimal Setting / Specification
Cylinder Immersion30% - 50%
Cylinder Rotation Speed25 - 75 m/min (Optimal: 50 m/min)
Temperature range20°C - 35°C (Optimal: 25°C)
VoltageApprox. 8 Volts
Current DensityUp to 10 A/dm² based on anodic surface
Correction Removing TimeApprox. 30 - 60 seconds (Anodic, depending on correction intensity)
Activation TimeApprox. 30 seconds (Cathodic)
Dechroming SpeedApprox. 6 to 9 minutes for 10 Micron chrome layers
Electrolyte Recipe35% Sulfuric Acid (350 g/L H₂SO₄) + 60 ml/L (70 g/L Dechro-A)
Target Solution YieldApprox. 1200 - 1700 m² cylinder surface per 1000 Litre bath

Dechro-L (003)

Liquid dechroming stabilizer and bath additive formulation.

Operational Specifications

Formulation settings and operational parameters for Dechro-L liquid stripping.
ParameterSpecification Setting
Immersion Target30% - 50% cylinder width
Rotation Speed25 - 75 m/min (Optimal: 50 m/min)
Bath Temperature20°C - 35°C (Optimal: 25°C)
Voltage RatingApprox. 8 V
Current DensityUp to 10 A/dm²
Anodic Removing TimeApprox. 30 - 60 seconds
Cathodic ActivationApprox. 30 seconds
Average Stripping Rate6 to 9 minutes for standard 10 Micron hard chrome layers
Electrolyte Density25° Baume or Dechro ready-to-use solution

NF Micro-Pel (004)

Dry-coat cylinder lubricant engineered to prevent debris collection.

Key Advantages & Application Steps

Engineered formulation to optimize mechanical engraving performance and reduce score marks.

Key Lubricant Advantages

  • Stylus Protection: Dry coating prevents engraving debris from adhering to diamond styluses, shoes, or burr cutters.
  • Non-Flammable: Engineered formula ensures maximum safety during application, transit, and workshop storage.
  • Friction Reducer: Minimizes score marks, allowing the shoe slide to glide smoothly across cylinder copper surfaces.
  • Water Repellent: Provides soil retarding and water repellent finish layers.

Application Steps

  1. Thoroughly clean and dry the rotogravure cylinder surface.
  2. Apply a very thin, even layer of **NF Micro-PEL** to the rotating cylinder using a clean paper towel or soft cloth. Avoid heavy streaks.
  3. Buff off any visible excess lubricant with a clean, dry cloth.
  4. Wipe the cylinder several additional times. This buffs the cylinder to a glassy, dust-free surface ready for diamond engraving.
Equipment

Rotogravure Electroplating Machine

Industrial machinery for cylinder copper and chrome plating. Features state-of-the-art automation, high deposition rates, and precise tank parameter controls.
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Equipment

Cylinder Polishing & Finishing Machine

High-efficiency polishing machine designed to polish and prepare cylinders post-copper plating, ensuring absolute cylinder surface accuracy before engraving.
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Equipment

Dechroming & Stripping Tanks

Fully chemical-resistant custom polymer stripping tanks designed for swift, safe dechroming lines using Dechro-A or Dechro-L agents.
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ETP Treatment

Chrome Neutralization Treatment Work (ETP)

Complete Effluent Treatment Plant (ETP) process design for neutralizing toxic Hexavalent Chromium (Cr VI) to non-toxic Trivalent Chromium (Cr III). Essential for environmental compliance and standard workplace safety protocols.

Standard Treatment Specifications:

  • Treatment Type: Chemical Reduction & Precipitation (ETP)
  • Typical Output: Hexavalent Chrome concentration reduced to below 0.1 ppm
  • Target Facility: Gravure workshops and hard chrome plating shops
  • Operational Standard: Environment pollution board compliant
Consult ETP Project