Additive process for patterned metallized conductive tracks on cotton with applications in smart textiles

Wills, Kathryn; Krzyżak, K.; Bush, J.; Ashayer-Soltani, Roya; Graves, John; Hunt, C; Cobley, Andrew

doi:10.1080/00405000.2017.1340822

Cited by 20 publications

(30 citation statements)

References 27 publications

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“…With its high conductivity and ductility, copper (Cu) is one of the most attractive options for e-textiles and application on the surface of flexible, substrates. Electroless Cu deposition is a well-known, additive approach to coat non-conductive (dielectric) substrates, such as printed circuit boards [ 2 ], textile [ 3 ], glass [ 4 , 5 ] and ceramics [ 6 ], with a conductive, metallic layer. Electroless plating is a controllable, stable process, which includes a source of metal ions, reducing agents, complexing agents, a stabilizer, a buffering agent, and a wetting agent; with temperature, concentration of the reducing agent and pH as the most influential factors [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

et al. 2020

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The selective metallisation of textiles is becoming a very important process in the development of electronic or e-textiles. This study investigated the efficacy of polymer coatings for the protection of copper (Cu) conductive tracks electroless plated on polyester (PES) fabric against laundering and rubbing, without essentially affecting the physical-mechanical and optical properties of the base material. After the electroless deposition of a consistent layer of Cu onto PES, four polymers were applied individually by screen-printing or padding. The physical-mechanical characterisation of coated textiles revealed that polyurethane resin (PUR) and modified acrylate resin (AR) had little effect on the air permeability, tensile strength and breaking tenacity of the PES, as compared to silicone elastomer polydimethylsiloxane (PDMS) and epoxy resin (ER). On the other hand, PUR and PDMS had higher abrasion resistance and photo-stability under prolonged UV irradiation, as compared to AR and ER. In addition, freshly Cu plated samples were coated with polymers, washed up to 30 cycles and characterised by measuring their electrical resistivity, determination of colour changes and the examination of the surface morphology. Based on these results, PUR presented the most suitable protection of Cu tracks on PES, with the lowest impact on physical-mechanical properties. ER is not recommended to be used for protection of Cu tracks on fabrics, due to its rigidity, low photo-stability, washing and wear durability.

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Section: Introductionmentioning

confidence: 99%

The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

et al. 2020

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“…Flat textiles can be plated on the whole (large) surface area or, recently, as user-defined complex patterns (Figure 4a), utilised as an electronic circuit, pressure sensor, hydration sensor, heartbeat monitor, body temperature sensor, gait analysis and posture, for materials such as clothing, furniture and footwear, e.g., as used in assistive technology for olderadults [2,20,59]. Flat textiles can be plated on the whole (large) surface area or, recently, as userdefined complex patterns (Figure 4a), utilised as an electronic circuit, pressure sensor, hydration sensor, heartbeat monitor, body temperature sensor, gait analysis and posture, for materials such as clothing, furniture and footwear, e.g., as used in assistive technology for older-adults [2,20,59]. [69] Copyright 2021, American Chemical Society); (d) sheet resistance during periodic stretching and releasing test at different strain levels, using a wearable strain sensor prepared by silver plated cotton/spandex blended fabric (reprinted with permission from Ref.…”

Section: Electroless Platingmentioning

confidence: 99%

“…Some researchers pre-treated textiles in an alkaline solution at high temperature, e.g., flax fabric [13], PES fabric [71], cotton/polyurethane (Co/PU) 95/5 [23], or exposed the surface to plasma treatment for a shorter time, e.g., Co fabric [64], polyamide/polyurethane (PA/PU) 87/13 [63], or laser treatment, e.g., Co fabric [74]. Moreover, to improve the binding ability between the metallic functional layer and the textile sub-strate, the matrix material can be modified with a coupling agent such as silane-based compounds (3-aminopropyltrimethoxysilane (APTMS) and 3-mercaptopropyltrimethoxysilane (MPTMS)) [75], dopamine [64,76], chitosan, cationic polymer Poly(diallyldimethylammonium chloride) (polyDADMAC) [59], aniline monomers [61], etc., although the APTMS and MPTMS are harmful to skin when contacting with the human body, which limits their application for wearables [13].…”

Section: Electroless Platingmentioning

confidence: 99%

Metallisation of Textiles and Protection of Conductive Layers: An Overview of Application Techniques

Ojstršek

Plohl

Gorgieva

et al. 2021

Sensors

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The rapid growth in wearable technology has recently stimulated the development of conductive textiles for broad application purposes, i.e., wearable electronics, heat generators, sensors, electromagnetic interference (EMI) shielding, optoelectronic and photonics. Textile material, which was always considered just as the interface between the wearer and the environment, now plays a more active role in different sectors, such as sport, healthcare, security, entertainment, military, and technical sectors, etc. This expansion in applied development of e-textiles is governed by a vast amount of research work conducted by increasingly interdisciplinary teams and presented systematic review highlights and assesses, in a comprehensive manner, recent research in the field of conductive textiles and their potential application for wearable electronics (so called e-textiles), as well as development of advanced application techniques to obtain conductivity, with emphasis on metal-containing coatings. Furthermore, an overview of protective compounds was provided, which are suitable for the protection of metallized textile surfaces against corrosion, mechanical forces, abrasion, and other external factors, influencing negatively on the adhesion and durability of the conductive layers during textiles’ lifetime (wear and care). The challenges, drawbacks and further opportunities in these fields are also discussed critically.

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“…Several treated textiles, which are cotton, wool, polyester, silk, cotton/polyester blend, regenerated cellulose, and polyamide treated with AgNPs, are presented. In general, summary of the treated textiles is listed in Table …”

Section: Historical and Current Developmentmentioning

confidence: 99%

Toward a comprehensive understanding of textiles functionalized with silver nanoparticles

Syafiuddin

2019

J Chinese Chemical Soc

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This article provides a comprehensive understanding of development of textiles functionalized with silver nanoparticles (AgNPs). There are three established methods to fabricate textiles functionalized with AgNPs, namely, solution‐immersion, layer‐by‐layer deposition, and sonochemical. In addition, several textile types such as cotton, wool, polyester, silk, cotton/polyester blend, polyamide, and regenerated cellulose have been used for the fabrication. The AgNP deposition mechanism on textiles is mainly due to electrostatic interaction between AgNPs and textile constituents. It was exhibited that the deposition of AgNPs on textiles can transform their textiles colors. In addition, it was demonstrated that the deposition of AgNPs on textiles is not permanent, particularly against washing treatment. Textiles modified with AgNPs have several promising applications such as antibacterial, antifungal, catalyst, electronic devices, water treatment, sun protection, air treatment, and surface‐enhanced Raman scattering, which are comprehensively discussed in this article. Future challenges in fabricating textiles functionalized with AgNPs remain on how this can be carried out to improve long‐term stabilization of AgNPs on textiles to achieve their permanent deposition by employing greener approaches.

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Additive process for patterned metallized conductive tracks on cotton with applications in smart textiles

Cited by 20 publications

References 27 publications

The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

The Efficacy of Polymer Coatings for the Protection of Electroless Copper Plated Polyester Fabric

Metallisation of Textiles and Protection of Conductive Layers: An Overview of Application Techniques

Toward a comprehensive understanding of textiles functionalized with silver nanoparticles

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