Olive hue visible–near infrared camouflage properties of high speed melt spun poly(ethylene terephthalate) multifilament yarn

Tavanaie, Mohammad Ali; Esmaeilian, Nima; Mojtahedi, Mohammad Reza Mohaddes

doi:10.1016/j.dyepig.2014.11.019

Cited by 15 publications

(11 citation statements)

References 6 publications

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“…In a subsequent study, Tavanaie et al [ 35 ] used the same optimum concentration of C.I. Pigment Green 7 (0.1%) and inorganic CB (0.01%) as Esmaeilian et al [ 34 ] in the production of camouflage PET yarns.…”

Section: Existing Technologies Applicable To Visible and Ir Camouflagementioning

confidence: 99%

“…This time, the partially oriented PET filament yarns were drawn, texturized, and knitted into a fabric to investigate its reflectance properties. Tavanaie et al concluded that the reflectance of the knitted fabric as measured by reflectance spectrophotometer simulated the olive reflectance spectra [ 35 ]. However, when examined using a thermal imager, the knitted fabric did not effectively simulate the ideal camouflage of the olive leaf reference due to differences in their respective pigment structures.…”

Section: Existing Technologies Applicable To Visible and Ir Camouflagementioning

confidence: 99%

“…However, when examined using a thermal imager, the knitted fabric did not effectively simulate the ideal camouflage of the olive leaf reference due to differences in their respective pigment structures. To examine the effect of yarn geometry on reflectance properties, Kalan et al compared the mass dyed multifilament yarns from their previous study [ 35 ] using simultaneous or conventional texturizing methods [ 36 ]. They found that yarn reflectance increased when the crimp per unit length of the yarn increased as the yarn became more compact and less bulky.…”

Section: Existing Technologies Applicable To Visible and Ir Camouflagementioning

confidence: 99%

See 2 more Smart Citations

Smart Textiles for Visible and IR Camouflage Application: State-of-the-Art and Microfabrication Path Forward

et al. 2021

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Protective textiles used for military applications must fulfill a variety of functional requirements, including durability, resistance to environmental conditions and ballistic threats, all while being comfortable and lightweight. In addition, these textiles must provide camouflage and concealment under various environmental conditions and, thus, a range of wavelengths on the electromagnetic spectrum. Similar requirements may exist for other applications, for instance hunting. With improvements in infrared sensing technology, the focus of protective textile research and development has shifted solely from providing visible camouflage to providing camouflage in the infrared (IR) region. Smart textiles, which can monitor and react to the textile wearer or environmental stimuli, have been applied to protective textiles to improve camouflage in the IR spectral range. This study presents a review of current smart textile technologies for visible and IR signature control of protective textiles, including coloration techniques, chromic materials, conductive polymers, and phase change materials. We propose novel fabrication technology combinations using various microfabrication techniques (e.g., three-dimensional (3D) printing; microfluidics; machine learning) to improve the visible and IR signature management of protective textiles and discuss possible challenges in terms of compatibility with the different textile performance requirements.

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Section: Existing Technologies Applicable To Visible and Ir Camouflagementioning

confidence: 99%

Section: Existing Technologies Applicable To Visible and Ir Camouflagementioning

confidence: 99%

Section: Existing Technologies Applicable To Visible and Ir Camouflagementioning

confidence: 99%

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Smart Textiles for Visible and IR Camouflage Application: State-of-the-Art and Microfabrication Path Forward

et al. 2021

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“…Without which, it is almost impossible to have a night military operation. By the advent of the NIR detection equipment, it is necessary to consider the IR reflection of the color and coating in the range of 700 to 1200 nm . The ability of camouflage in visible region and NIR depends on the surface colors of target, particularly distribution of reflection spectrum in these two areas .…”

Section: Introductionmentioning

confidence: 99%

“…By the advent of the NIR detection equipment, it is necessary to consider the IR reflection of the color and coating in the range of 700 to 1200 nm. 11 The ability of camouflage in visible region and NIR depends on the surface colors of target, particularly distribution of reflection spectrum in these two areas. 12 For camouflage, it is essential to dye or print textiles with dyes and pigments to match the reflection of objects.…”

Section: Introductionmentioning

confidence: 99%

Comfort and reflectance properties of viscose/polyester blend fabric printed by vat/disperse dyes in visible/near‐infrared region

Salehi

Mehrizi

Bidoki

et al. 2020

Color Research & Application

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In this study, a viscose/polyester fabric was printed by disperse and vat dyes to match the reflectance characteristics of the NATO black and green hues with forest environment in the visible/near‐infrared (Vis‐NIR) reflection spectrum. The black and activated carbon nanoparticles were also added to the printing paste to match the reflectance of hues. Color components and Vis‐NIR reflective behavior of printed fabrics were measured by reflection spectrophotometer. The rubbing, washing and light fastness, water absorption time, air permeability, bending length, and crease recovery angle of printed fabrics were also studied. Additionally, the strength properties of samples were measured. The reflectance behavior of the samples showed that the use of the black and activated carbon nanoparticles results in diminution of the Vis‐NIR reflection. The strength, air permeability, and bending length of printed fabrics have decreased, while the angle of crease recovery and the time of water droplet absorption have increased. The rubbing, washing, and light stabilities of printed samples were also measured as appropriate.

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Theoretical study of the functional characteristics of composite fiber/colorant materials for military digital camouflage

Liu,

Peng,

Lin

et al. 2024

J Chinese Chemical Soc

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BackgroundBased upon experimental literatures to simulate many newly developed systems and analyzed and compared the physical properties and NIR absorption of the materials for supplying future research reference into military camouflage clothing.AimsThis project aimed to explore composite fiber/cotton/colorant materials that possess the characteristic of anti‐near‐infrared radiation (NIR) reflectance and their further application in military combat uniforms to achieve the aim of personnel camouflage and concealment.Materials and MethodsMaterials Studio (MS06 version), Gaussian 09 software, and the GULP program were adopted for simulation and computation in this study.Results and DiscussionThe physical absorption of the dyes and nylon 66/cotton exhibited the same trend from large to small in the order NCIBu > NCD > NCIG > NCT > NCA. All systems had good colorfastness except for the NCA, NCD, and NCT systems. The colorfastness of the dual‐dye systems was better than that of the single‐dye systems; in particular, the colorfastness of the NCIG‐138T and NCIBu‐12D systems. The six layered NCT, NCIBu, NCIBu‐12D, NCIG‐138T systems exhibited excellent reflectivity in the NIR region.ConclusionsThe NCIBu‐12D and NCIBu‐138D systems, with a weight percentage of 2/49/49%, exhibited the best performance in our simulation. These achievements could be helpful in terms of informing actual experiments in order to perfect the design of military clothing.

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Olive hue visible–near infrared camouflage properties of high speed melt spun poly(ethylene terephthalate) multifilament yarn

Cited by 15 publications

References 6 publications

Smart Textiles for Visible and IR Camouflage Application: State-of-the-Art and Microfabrication Path Forward

Smart Textiles for Visible and IR Camouflage Application: State-of-the-Art and Microfabrication Path Forward

Comfort and reflectance properties of viscose/polyester blend fabric printed by vat/disperse dyes in visible/near‐infrared region

Theoretical study of the functional characteristics of composite fiber/colorant materials for military digital camouflage

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