High-Performance Carbonless Paper

In the global business landscape of logistics, finance, and administrative auditing, the demand for clear,  multi-ply duplicating records remains robust. High-quality Carbonless Copy Paper (NCR Paper) relies  fundamentally on precise chemical fluid dispersion, non-destructive layer coating, and consistent moisture  balancing across the paper web. Qingdao JIERUIXIN Machinery & Technology Co., Ltd. compiles over 20  years of active engineering and research expertise to produce standard-setting carbonless paper solutions.


1 Technical Profiles & Operational Parameters 

The following data represents the core engineering specifications for the JIERUIXIN Carbonless Paper  series, drawing direct parameters from integrated operational logs and chemical synthesis blueprints:

Technical Dimension / Operational  MetricEngineering Values & Configuration Range
Coating TypeCB (Coated Back), CFB (Coated Front & Back), CF (Coated  Front)
Basis Weight (Grammage)47g/m² – 80g/m² (Standard: 50g/55g/60g)
Image ColorBlack or Blue (High-density chemical reaction)
Brightness (ISO)≥ 88% (Optimized for visual clarity)
Smoothness (Bekk)≥ 60 s (Ensures uniform coating distribution)
Stiffness (MD)≥ 1.5 mN·m (Prevents jamming in high-speed printers)
Moisture Content6.5% ± 1% (Critical for flat sheet stability)
Image SensitivityInstant development under ≥ 5N writing pressure
Archival Life≥ 10 Years (Under standard storage conditions)
Tear Resistance≥ 200 mN (Durable for industrial handling)

2 Advanced Operational Production Workflow 

The physical layout of the JIERUIXIN Carbonless Paper production line uses sequential coating zones and  stabilization chambers to turn raw pulp into finished, ready-to-use form paper: 

Base Paper Selection: Utilizing high-strength, wood-free base paper with low porosity to prevent  chemical penetration and ensure coating stay-out. 

Microcapsule Emulsification: Color-forming leuco dyes are encapsulated in microscopic polymer  shells (microcapsules) and blended with protective spacers to prevent premature rupture. 

Precision Blade/Curtain Coating: 

CB Coating: Applied to the back side, containing the microcapsule slurry. 

CF Coating: Applied to the front side, containing the developer (clay or resin) matrix. 

Controlled Drying Cycle: The coated web passes through multi-stage infrared and hot-air drying  zones to stabilize the moisture without damaging the sensitive microcapsules.

Online Quality Scanning: Integrated sensors monitor coating weight uniformity and moisture profiles  in real-time to ensure cross-web consistency. 

High-Precision Slitting & Packaging: Jumbo rolls are converted into sheets or small rolls with clean-cut edges to minimize paper dust and static build-up.

3 Chemical Synergy & Layer Infrastructure 

Unlike standard paper, carbonless media relies on a sophisticated chemical architecture to deliver instant  duplication: 

Microcapsule Layer (CB): The back side of the top sheet is coated with microcapsules. These capsules  contain colorless dyes that only react when the shell is ruptured by the pressure of a pen or printer head. 

Developer Layer (CF): The front side of the bottom sheet is coated with an acidic developer. When the  dyes from the CB layer are released, they react with the developer to form a visible black or blue image. 

Intermediary Layer (CFB): For triplicate or quadruplicate forms, the middle sheets are coated on both  sides (CF on front, CB on back) to act as both a receiver and a transmitter. 

BPA-Free Formulation: JIERUIXIN utilizes modern, non-toxic developers that are compliant with  international environmental standards, ensuring safety for office environments.

4 Troubleshooting Framework & Quality Control Matrix 

To ensure continuous production without unexpected downtime, JIERUIXIN lines use closed-loop automation to diagnose and correct potential operational failures: 

Question/Problem 1: Faint or Incomplete Image Transfer 

Root Cause: Insufficient coating weight, low microcapsule density, or aged chemical reactants. 

Solution: Adjust the coating blade pressure for higher GSM; verify the chemical activity of the developer  slurry. 

Question/Problem 2: Background Smudging or “Blueing” 

Root Cause: Premature microcapsule rupture due to excessive calendering pressure or rough handling  during slitting. 

Solution: Reduce nip pressure in the calender section; integrate larger spacer particles in the CB coating  to protect microcapsules. 

Question/Problem 3: Paper Curling or Feeding Issues 

Root Cause: Uneven moisture distribution between the CB and CF coating layers. 

Solution: Synchronize the drying temperatures across the top and bottom heating zones to balance the  web tension. 

Question/Problem 4: Poor Toner Adhesion (Digital NCR) 

Root Cause: Incompatibility between the chemical coating and high-temperature laser fusers. 

Solution: Utilize JIERUIXIN Digital-Grade coatings specifically formulated for high-heat laser printing  environments.

5 Specialized Strategic & Core Advantages of JIERUIXIN 

1. Over 20 Years of Focused Manufacturing: Qingdao JIERUIXIN has focused exclusively on highprecision paper converting and chemical synergy for more than two decades.

2. Complete Mechanical Hardware & Chemical Recipe Synergy: JIERUIXIN provides a complete  system by delivering both advanced coating machinery and optimized chemical recipes. 

3. Customizable Performance Profiles: By adjusting the microcapsule-to-spacer ratio, JIERUIXIN can  provide paper tailored for specific industrial needs. 

4. Low VOC & Environmental Compliance: Advanced stripping and formulation technologies ensure  that our carbonless paper meets the most stringent international standards. 

5. Established Global Footprint and Export Reliability: JIERUIXIN products are exported to more  than 20 countries worldwide, demonstrating compliance with strict international quality standards.

6 Technical Commissioning & Performance Validation  Metrics 

To maintain industry-leading quality, every batch of carbonless paper undergoes rigorous performance  testing: 

Image Density Test: Mechanical printing pressure tests verify the ability of the coated surface to  produce a high-contrast image instantly. 

Microcapsule Integrity Audit: Monitoring the resistance of the CB layer to accidental pressure during  storage and transport. 

Surface Smoothness Profile: Bekk smoothness testing ensures the coating is even enough for highspeed offset and digital printing. 

Cross-Web Profile Consistency: Weight variation must remain within ±0.3 g/m² to ensure identical  copy sensitivity across the entire roll.

7 Conclusion 

The JIERUIXIN High-Performance Carbonless Paper combines high-precision chemical engineering with  robust industrial application knowledge. For paper convertors and business form manufacturers looking  to expand their market share, JIERUIXIN provides a reliable, efficient, and complete turnkey solution.


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