Carbonless copy paper, also known as NCR paper, revolutionized business transactions by eliminating the need for carbon paper. The magic behind this technology lies in microencapsulated dyes and developers, and a critical component in many of these dye systems is 7-Anilino-3-diethylamino-6-methyl fluoran, commonly referred to as ODB-1 (CAS 29512-49-0). This article explores its function and sourcing.

How Carbonless Paper Works
Carbonless copy paper typically consists of two main types of paper. The back of the top sheet is coated with microcapsules containing a color-forming dye. The front of the sheet below it is coated with a developing substance. When pressure is applied (e.g., by writing or typing), the microcapsules rupture, releasing the dye. This dye then reacts with the developer on the sheet below, creating a colored mark that duplicates the original writing.

ODB-1 as a Color Former
7-Anilino-3-diethylamino-6-methyl fluoran plays a crucial role as the color former in this system. Its chemical properties allow it to remain stable within the microcapsules until released. Upon contact with the developer, it undergoes a rapid color change, typically producing a black image. The consistency of this reaction is vital for creating clear, legible copies. Therefore, manufacturers seek high-purity ODB-1 to ensure the reliability of their carbonless paper products. Sourcing this CAS 29512-49-0 thermal paper dye from a trusted manufacturer is key.

Ensuring Quality and Consistency
For optimal performance, the ODB-1 used must meet strict quality standards. A purity of 99.5% MIN, as offered by leading suppliers in China like NINGBO INNO PHARMCHEM CO.,LTD., guarantees that the dye will consistently react with the developer to produce the desired color without discoloration or fading. This is essential for applications like invoices, order forms, and other multi-part business documents where legibility is paramount.

Where to Buy ODB-1
Businesses requiring this specialized chemical for their carbonless paper production can find reliable sources in China. NINGBO INNO PHARMCHEM CO.,LTD. is a distinguished manufacturer known for its commitment to producing high-quality chemical intermediates. By choosing to buy ODB-1 from such a supplier, you ensure the integrity and performance of your carbonless paper products.

In summary, 7-Anilino-3-diethylamino-6-methyl fluoran (ODB-1) is a cornerstone of modern carbonless copy paper technology. Its ability to form color reliably when activated makes it indispensable for creating duplicate documents efficiently.