The main method of non-destructive ink analysis is micro-spectrophotometry . This involves scanning the ink with ultraviolet or infrared light to record its spectrum, that is, the wavelengths of light it absorbs. Some inks fluoresce, or emit light, on exposure to ultraviolet, while others disappear.

How do you identify ink?

Typically, the nondestructive methods include: (1) a visual and microscopic examination of the writing to assess its color and the type of pen used; (2) infrared reflectance and luminescence examinations to determine whether the inks reflect or absorb infrared light and whether the inks luminesce; and (3) viewing the

How can ink analysis be used to help solve a case?

Forensic scientists are able to use ink chromatography to solve crimes by matching documents or stains found at a crime scene to the marker or pen that belongs to a suspect. Forensic scientists analyze the unknown ink and compare it to writing utensils collected from possible suspects.

How are inks compared in forensics?

One nondestructive method of ink comparison is called microspectrophotometry. This process enables the examiner to accurately determine whether the colors of the two inks match by comparing their light transmission, absorption, and reflection characteristics.

What is the benefit of ink?

2nd benefit: Solid and fine line printing at the same timeConventional inkHigh Quality and High Definition InkSolid and fine line printing at the same time causes bleed of line, ink spatter, and blur.Enables solid and fine line printing (fine pattern) with one stencil at the same time.