The effect of laser technological parameters on the color and structure of denim fabric

Abstract

The effect of laser technological parameters on the color of denim fabric is a topic of research for scientists in various countries. More detailed investigations, which would estimate the effect of several main laser technological parameters on the color, taking into account morphological fabric modifications, have been yet to be performed. Therefore, the aim of this study was to define the effect of laser technological parameters on the color of denim fabric. In the research, denim fabric was used with the following fiber content: 98% cotton and 2% EL, surface density 357 g/m2, weave – twill 3/1. The specimens were treated using a CO2 laser, with changing beam power and motorized drive parameters – the speed and step. Using a spectrophotometer, the change of the fabric surface color, Δ E, and color system, HSB, were determined both before and after laser treatment. Morphological analysis of the fabric was carried out uing a scanning electron microscope. The research showed that the color change, Δ E, of the laser-treated specimens is different in the warp and weft directions. The highest Δ E was reached while changing the beam power. The largest effect on the change of color hue, H, and color saturation, S, amongst all tested laser technological parameters was found for laser power. Color brightness, B, was mostly affected by laser step size, when laser energy density is ∼6 mJ/cm2.

An Analysis of Effect of CO2 Laser Treatment on Carbon Fibre Fabric

“…Among different physical methods, CO 2 laser treatment is an effective physical surface treatment used for different types of fabrics. Due to the increasing concerns on environmental protection issue, CO 2 laser treatment is a method for surface treatment which is based purely on physical interaction between the laser and the material surface [8][9][10][11][12]. Previous studies reveal that CO 2 laser treatment is a good candidate for changing aesthetic properties of materials in fabric form [13][14][15].…”

The use of laser in garment manufacturing: an overview

“…The process is very complex, and often computerised systems are used to drive the laser head (Kan et al 2010;Juciene et al 2013). In spite of the complexity, very precise and clean engravings can be obtained with high rate of production.…”

“…Pictures, flower patterns and even personalized signatures can be engraved on leather shoes, leather bag, wallet, leather belt, leather sofa and leather clothes, greatly increasing the added value of products. In addition laser engraving is used to create embroidered Denim engraving is another fast-growing application of laser using sealed CO 2 lasers (Juciene et al 2013;Kan 2014a). The laser is used to create minute designs and patterns on denim fabric as well as finished denims.…”

A Study of CO2 Laser Treatment on Colour Properties of Cotton-Based Fabrics

“…These treatments include stonewashing, sand blasting, bleaching, brushing, etc. [1][2][3][4][5][6]. However, the increasing concerns of pollution and protection of the environment have resulted in the need for environment-friendly methods of surface treatment.…”