Carbonless Paper Microencapsulation Technology

In the fields of business, finance, and logistics, the need for efficient and accurate document copying is widespread. Carbonless paper has become a staple in these industries due to its unique ability to produce copies without relying on traditional carbon paper. As a professional manufacturer of high-quality paper products, Shenzhen kingcolor paper co., Ltd. has long been committed to advancing carbonless paper technology, especially the core Carbonless Paper Microencapsulation Technology, to meet the diverse needs of customers. Carbonless Paper is a multi-layer copying paper that does not require the use of carbon paper. It is also called carbonless copy paper or NCR paper. It is often used in situations where multiple copies are required such as invoices, receipts, orders and contracts. Compared with traditional carbon paper, NCR carbonless paper is more environmentally friendly, reduces the waste of carbon paper, and is easier to recycle. Because of its ability to directly generate copies, it is less likely to produce redundant or accidental copies, ensuring the confidentiality of information and saving time and reduce errors. This article will detail the key aspects of Carbonless Paper Microencapsulation Technology to help readers better understand this innovative technology.

Core Principles of Carbonless Paper Microencapsulation Technology for Carbonless Paper

• The core of Carbonless Paper Microencapsulation Technology lies in the microcapsules embedded in the coating of carbonless paper. These microcapsules are tiny, usually 1-10 micrometers in diameter, and are filled with color-forming agents (such as leuco dyes).
• When pressure is applied to the surface of carbonless paper(e.g., when writing or printing), the microcapsules break, and the color-forming agents inside react with the color-developing agents coated on the next layer of paper. This chemical reaction produces visible images or text, realizing the copying function without carbon paper.
• Shenzhen kingcolor paper co., Ltd. optimizes the size and stability of these microcapsules during production. The uniformly sized microcapsules ensure consistent color development across the entire carbonless papersurface, while the stable capsule wall prevents premature rupture, extending the paper’s shelf life.

Application Advantages of Carbonless Paper Microencapsulation Technology in Carbonless Paper Printing

• In carbonless paper printing, the microencapsulation technology ensures high print clarity. The well-controlled microcapsule rupture under printing pressure allows for precise transfer of color-forming agents, resulting in sharp, legible text and patterns on each copy.
• This technology enables fast printing speed. Since there is no need to insert carbon paper between layers, the printing process of carbonless paperbecomes more efficient, which is particularly suitable for large-volume printing scenarios such as batch invoice production, a common demand met by Shenzhen kingcolor paper co., Ltd.’s products.
• The microencapsulation technology enhances the durability of printed carbonless paper The reacted colorants have good light resistance and water resistance, ensuring that the printed content does not fade easily even when stored for a long time, maintaining the integrity of important documents like contracts or receipts.

Production Standards of Carbonless Paper 2 Part Based on Carbonless Paper Microencapsulation Technology

• For carbonless paper 2 part(a common type with two layers: top sheet and bottom sheet), Shenzhen kingcolor paper co., Ltd. strictly controls the microcapsule coating amount on the top sheet. An appropriate coating amount ensures that sufficient color-forming agents are released to react with the bottom sheet, avoiding incomplete color development.
• The bottom sheet of carbonless paper 2 partis coated with high-quality color-developing agents. The ratio of color-developing agents to other additives is optimized based on the microencapsulation technology, ensuring a fast and complete reaction with the color-forming agents from the broken microcapsules.
• During production, the bonding between the two layers of carbonless paper 2 partis adjusted to be easy to separate after use. At the same time, the microcapsules on the top sheet are protected from being damaged during transportation or storage, ensuring that the carbonless paper 2 part remains usable when it reaches the customer.

Quality Control of Carbonless Paper in Carbonless Paper Microencapsulation Technology

• Shenzhen kingcolor paper co., Ltd. conducts strict testing on the microcapsule quality of carbonless paperduring production. This includes testing the microcapsule rupture rate (to ensure they break only under appropriate pressure) and the uniformity of the microcapsule distribution (to avoid uneven color development).
• The color density of the copied content is a key quality indicator. The company uses professional equipment to test the color density of copies produced by carbonless paperusing microencapsulation technology, ensuring that each copy meets the industry’s quality standards and is easy to read.
• Environmental resistance testing is also carried out. Carbonless paperproducts are tested under different temperature and humidity conditions to verify that the microencapsulation technology can maintain stable performance, and the copied content will not be affected by environmental changes, ensuring the reliability of the paper in various application scenarios.

Carbonless Paper Microencapsulation Technology Related Carbonless Paper FAQS

What factors affect the copying effect of carbonless paper produced by Shenzhen kingcolor paper co., Ltd. using microencapsulation technology?

The copying effect of carbonless paper is mainly affected by three factors. First, the pressure applied: insufficient pressure may cause incomplete rupture of microcapsules, resulting in light copy content, while excessive pressure may damage the paper. Second, the storage environment: high temperature and humidity may cause premature aging of microcapsules, reducing their reactivity. Third, the matching of layers: for multi-layer carbonless paper (such as carbonless paper 2 part), the alignment between the top sheet (with microcapsules) and the bottom sheet (with color-developing agents) is crucial; misalignment will lead to partial copy loss. Shenzhen kingcolor paper co., Ltd. provides usage guidelines to help customers avoid these issues.

Is carbonless paper printing suitable for all types of printers when using microencapsulation technology?

Not all printers are suitable. Carbonless paper printing works best with dot matrix printers and some thermal printers, as these printers apply appropriate pressure or heat to trigger the microcapsule rupture and color reaction. Laser printers and inkjet printers are not recommended: laser printers use high temperature which may cause excessive microcapsule rupture in advance, and inkjet printers’ ink may mix with the microcapsule coating, affecting the copy effect. Shenzhen kingcolor paper co., Ltd. can provide recommendations on suitable printers based on customers’ carbonless paper printing needs.

How should carbonless paper 2 part produced using microencapsulation technology be stored to extend its service life?

To extend the service life of carbonless paper 2 part, it should be stored in a cool, dry environment with a temperature between 15-25℃ and relative humidity between 40%-60%. Avoid direct sunlight, as strong light may degrade the microcapsule wall. Do not stack heavy objects on the carbonless paper 2 part to prevent accidental pressure from breaking the microcapsules. Additionally, keep it away from volatile chemicals, which may react with the color-forming or color-developing agents in the microencapsulation technology. Shenzhen kingcolor paper co., Ltd. uses moisture-proof packaging for its carbonless paper 2 part to facilitate storage.

Can the carbonless paper made with microencapsulation technology be recycled, and what are the precautions?

Yes, carbonless paper is recyclable, which is one of its environmental advantages over traditional carbon paper. However, during recycling, it should be separated from other paper types first, as the microcapsule coating (containing color-forming and color-developing agents) may affect the quality of recycled paper if mixed in large quantities. Also, avoid recycling carbonless paper that has already been used (with copied content), as the reacted colorants may cause discoloration of the recycled paper. Shenzhen kingcolor paper co., Ltd. promotes the environmental protection concept of carbonless paper and provides guidance on proper recycling methods.

What is the difference in microencapsulation technology between carbonless paper 2 part and 3-part carbonless paper from Shenzhen kingcolor paper co., Ltd.?

The core microencapsulation technology principle is the same, but the coating distribution differs. For carbonless paper 2 part, the top sheet (first layer) is coated with microcapsules (color-forming agents), and the bottom sheet (second layer) is coated with color-developing agents. For 3-part carbonless paper, there is an additional middle sheet: the top side of the middle sheet is coated with color-developing agents (to react with the top sheet’s microcapsules), and the bottom side is coated with microcapsules (to react with the bottom sheet’s color-developing agents). This design allows 3-part carbonless paper to produce three copies. Shenzhen kingcolor paper co., Ltd. adjusts the microcapsule and color-developing agent coating amounts for each layer to ensure consistent copy quality across all layers.