Optical model of the polyethylene terephthalate (PET) fabric irradiated by laser

Guoxing He

doi:10.1117/12.570575

13 January 2005 Optical model of the polyethylene terephthalate (PET) fabric irradiated by laser

Guoxing He

Proceedings Volume 5629, Lasers in Material Processing and Manufacturing II; (2005) https://doi.org/10.1117/12.570575
Event: Photonics Asia, 2004, Beijing, China

Abstract

The Polyethylene terephthalate (PET) fiber is so sleek that its surface has high reflectance. Therefore it is difficulty to dye the PET fiber dark color by using the disperse dyes. In order to solve this problem, the laser processing technology is applied to change the surface dyeing property of the PET fiber. How to quantify the treated layer thickness of laser irradiated PET fabric and how to foretell its spectrum reflectivity distribution are two problems that needs the solution urgently. In this paper, both the simplified structure model and optical transmission model of PET fabric irradiated by laser are developed, the reflectance formula for laser irradiated PET fabric is derived. The characteristic parameters, both the equivalent optical thickness and the gain of dye strength, are introduced, which represented surface performance of laser irradiated PET fabric. When the equivalent optical thickness of the treated layer and the unit k/s ratio of the dyestuff are measured, the spectrum reflectivity distribution of the laser irradiated PET fabric for given concentrations of the various colorants can be calculated, thereby its tristimulus values can be obtained.

Citation Download Citation

Guoxing He "Optical model of the polyethylene terephthalate (PET) fabric irradiated by laser", Proc. SPIE 5629, Lasers in Material Processing and Manufacturing II, (13 January 2005); https://doi.org/10.1117/12.570575

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