Improvement of VIS and IR camouflage properties by impregnating cotton fabric with PVB/IF-WS2

Samolov, Aleksandra; Simić, Danica; Fidanovski, Bojana; Obradović, Vera; Tomić, Ljubiša; Knežević, Desimir

doi:10.1016/j.dt.2020.10.008

Cited by 12 publications

(11 citation statements)

References 29 publications

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“…Furthermore, smart textile systems must consider the current manufacturing capabilities in the textile industry as some camouflage methods are expensive (e.g., the use of expensive materials or processes) and not suitable for industrial manufacturing (e.g., relying on processes not easily scalable or the use of toxic compounds) [ 33 ]. The integration of metal fibers and wires or metallic and galvanic coatings must be carefully considered as these can cause damage to textile machinery, add weight to a textile, or be limited due to adhesion difficulties and corrosion resistance [ 9 ].…”

Section: Discussion and Path Forwardmentioning

confidence: 99%

“…Samolov et al impregnated camouflage printed cotton fabric with poly(vinyl butyral) (PVB) with and without fullerene-like tungsten disulfide (IF-WS 2 ) nanoparticles [ 33 ]. The authors found that the addition of the nanoparticles enhanced the camouflage properties of the cotton fabric by lowering the diffuse reflectance of dark green and brown shades to an acceptable range according to the Serbian Military Standard.…”

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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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: Discussion and Path Forwardmentioning

confidence: 99%

Section: Existing Technologies Applicable To Visible and Ir Camouflagementioning

confidence: 99%

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

et al. 2021

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“…32 To investigate the impregnation's ability to blend in throughout the infrared portion of the spectrum, thermal imaging was used. 33 The results obtained indicate that the PVB/IF-WS2 impregnation system enhanced the material's camouflage qualities from MWIR-LWIR, meaning that IF-WS2 improved the fabric's spectrophotometric properties. The advantages of this approach include improvement in visible (VIS) and IR camouflage, providing a camouflage effect that is resistant to washing and wear.…”

Section: Introductionmentioning

confidence: 85%

“…The method's drawbacks include its high expense and efficient reduction of reflectance overall. 34,35 1.2. UV and NIR-Protective Cotton Fabric by Polyurethane.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Multifunctional Tents Using Canvas Fabric

Alvi,

Maqsood,

Iftikhar

et al. 2024

ACS Omega

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Herein, this study was compiled to investigate a suitable solution for the fabrication and development of the multifunctional defense tent from previously reported research. The military always needs to protect their soldiers and equipment from detection. The advancement of infrared detection technology emphasizes the significance of infrared camouflage materials, reducing thermal emissions for various applications. Objects emit infrared radiation detectable by devices, making military targets easily identifiable. Infrared camouflage mitigates detection by lowering an object's infrared radiation, achieved by methods such as reducing surface temperature, which is crucial in designing military tents with infrared (IR) camouflage, considering water repellency and antibacterial features. Water repellency, as well as antimicrobial properties, in army tents is also important as they have to survive in different situations. All these problems should be addressed with the required properties; therefore, the authors try to introduce a new method from which multifunctional tents can be produced through economical, multifunctional, and sustainable materials that have IR protection, water repellency, ultraviolet (UV) protection, air filtration and permeability, and antimicrobial properties. There is still no tent that performs multiple functions at a time, even those functions that do not correlate with each other such as water repellency, IR protection, antimicrobial, and air permeability. So, a multifunctional tent could be the solution to all these problems having all the properties discussed above. In this study based on the literature review, authors concluded a method for the required tent for canvas fabric coated with zinc sulfide (ZnS), graphene oxide (GO), and zinc oxide (ZnO), or these materials should be incorporated in fiber formation because fiber composition has more impact. These multifunctional tents will be very beneficial due to their multifunctions like weather resistance, durability, and long life. These would help the army in their missions by concealing their soldiers and equipment from detection by cameras and providing filtered air inside the tent in case of gases or explosions. The proposed method will help to fulfill the stated and implied needs of customers.

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“…Through the recent years there are growing demand for improved functionalized textile materials. The advancement covers areas of camouflage protection (Samolov et al, 2020), environmental hazard, biological, chemical and radiation and many more. Camouflage protection is still one of the main problems related to the protection of military personnel and equipment in so-called hostile environments.…”

Section: Introductionmentioning

confidence: 99%

Flammability analysis of military fabrics

Yahaya

Zahari

Adnan

2022

J APPL RES TECH ENG

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There are many types of fabric materials used in military applications. From clothing to protective equipment, fabric analysis mostly focused on its physical properties. Still, its flammability has not been well studied, such as ease of ignition, heat release, and toxicity. This paper reports the flammability properties of fabric in military applications. The ignition time, heat release, and smoke production of six commercially available military fabrics are discussed in this article. The fabrics analysed are cotton, polyester-cotton, coated nylon, and kenaf fabric. The fabric grouping into the coated and printed fabric while cotton and kenaf were tested as a comparison. Results indicated that coated fabric (N420D and N1000D) showed higher TTI compared to printed fabric (P35C65, P35C65M, and P65C35). It is affected by heat flux, the areal density of the sample, sample mass, and the number of sample layers. Coated fabrics (N420D and N1000D) indicate higher EHC compared with other fabrics. For printed fabric, a relatively lower EHC was observed as it indicates incomplete combustion. Total heat release of the samples tested was presented as an integration of the HRR vs time curve. Coated samples show the highest values for PHRR and THR values compared to printed and cotton fabrics.

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Improvement of VIS and IR camouflage properties by impregnating cotton fabric with PVB/IF-WS2

Cited by 12 publications

References 29 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

Fabrication of Multifunctional Tents Using Canvas Fabric

Flammability analysis of military fabrics

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