Product/Service

Effective Residual Ink Concentration

Source: Technidyne Corporation
ERIC 950 measures residual ink in recycled pulp
ERIC 950 measures residual ink in recycled pulp.

Joint research conducted by Pulp And Paper Research Institute of Canada (PAPRICAN) and Technidyne determined that there is a known relationship between the amount of residual ink and the level of reflectance in the infrared region of the spectrum (800nm to 1200nm). The ERIC 950 technology measures reflectance in the infrared region and converts these measurements to light absorption. The research that was conducted also determined that ink and ink alone (not dyes lignin or other colorants) affects the absorption of infrared light. Once the absorption coeffecient of the residual ink is known, the instrument calculates an Effective Residual Ink Concentration (ERIC). The ERIC value can be used as a control parameter or product specification.
The ERIC 950 measurement is available on two different Technidyne instruments.

  • The Technibrite ERIC 950
  • The Color Touch Model ISO w/ERIC

A powerful tool for producers of recycled pulp and paper.

Technidyne has employed new and unique technology in the introduction of the ERIC 950. For the first time, you can measure residual ink concentration along with ISO brightness, opacity, color, whiteness, and tint with the same instrument.
Key features:

  • Unique in its ability to detect the amount of residual ink by reflectance measurements in the infrared area of the spectrum (950nm).
  • Converts infrared reflectance measurements to light absorption and calculates Effective Residual Ink Concentration (ERIC) for use as a control parameter.
  • Allows you to determine how much additional deinking and/or bleaching is necessary to achieve target brightness.
  • RS232 port.

Technidyne Corporation, 100 Quality Ave., New Albany, IN 47150. Tel: 812-948-2884; Fax: 812-945-6847.