Surface modification of natural leather using diffuse ambient air plasma

Štěpánová, Vlasta; Kelar, Jakub; Slavíček, Pavel; Chlupová, Silvie; Stupavská, Monika; Jurmanová, Jana; Černák, Mirko

doi:10.1016/j.ijadhadh.2017.05.004

Cited by 20 publications

(7 citation statements)

References 22 publications

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“…Leather is a natural fabric material obtained from skins of animals (Stepanova et al 2017). The treatment process of leather is highly complicated with various steps (Zarlok et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Comparative study on the physical entrapment of soy and mushroom proteins on the durability of bacterial cellulose bio‐leather

Kim

Song

2021

Cellulose

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This study aimed to develop eco-friendly bacterial cellulose (BC) bio-leather with improved durability using plant-based proteins, namely soy protein isolate (SPI) and mushroom protein (MP), which were physically entrapped inside the BC, respectively. The amounts of the plant-based proteins were determined by evaluating the tensile strength of BC bio-leather, and were found to be 20 wt% and 50 wt% of BC for SPI and MP, respectively. The enhanced properties of mechanical strength and durability of BC bio-leather were measured in terms of changes in water resistance, tensile strength, flexibility, crease recovery, and dimensional stability. The durability of BC was improved after the entrapment of proteins, and moreover, the durability of BC entrapped with plant-based proteins was further improved by the addition of glycerol. Especially, BC entrapped with MP and glycerol had better water resistance, tensile strength, flexibility, and crease recovery compared to cowhide leather. The chemical and physical structures of BC bio-leathers were studied using Fourier transform-infrared spectroscopy, X-ray diffraction, field-emission scanning electron microscopy, and energy dispersive X-ray spectroscopy analyses. From the results, it was confirmed that BC entrapped with MP and glycerol could be a suitable leather substitute.

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“…Leather is a natural fabric material obtained from skins of animals (Stepanova et al 2017). The treatment process of leather is highly complicated with various steps (Zarlok et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Comparative study on the physical entrapment of soy and mushroom proteins on the durability of bacterial cellulose bio‐leather

Kim

Song

2021

Cellulose

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“…The properties of the thin film deposited on the leather surface were characterised by different experimental techniques, in terms of water repellence, surface modifications, thickness and colour and appearance changes. The aim of this research is to use plasma treatment as an environmentally friendly finishing method to impart hydrophobicity to the surface of natural leather, which can be used in the footwear and leather industries as well as in the textile industry [ 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic Leather Coating for Footwear Applications by a Low-Pressure Plasma Polymerisation Process

Ruzafa-Silvestre¹,

Blasco²,

López³

et al. 2021

Polymers

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The aim of this work is to develop hydrophobic coatings on leather materials by plasma polymerisation with a low-pressure plasma system using an organosilicon compound, such as hexamethyldisiloxane (HMDSO), as chemical precursor. The hydrophobic coatings obtained by this plasma process were evaluated with different experimental techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and standardised tests including colour measurements of the samples, surface coating thickness and water contact angle (WCA) measurements. The results obtained indicated that the monomer had polymerised correctly and completely on the leather surface creating an ultra-thin layer based on polysiloxane. The surface modification produced a water repellent effect on the leather that does not alter the visual appearance and haptic properties. Therefore, the application of the plasma deposition process showed promising results that makes it a more sustainable alternative to conventional functional coatings, thus helping to reduce the use of hazardous chemicals in the finishing process of footwear manufacturing.

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“…This behavior has been also reported by other researchers. In specific, Štěpánová et al, who used chromium-tanned cow leather, used for leather shoe fabrication, show a reduction of water contact angle from 85° to 45° after 10 sec of plasma treatment [58]. In addition, acid-pickled bare pig skin was modified through O2/H2O low-temperature plasma treatment by Uou et al [59] to change the wettability properties.…”

Section: Surface and Pore Hydrophilicity -Water Permeabilitymentioning

confidence: 99%

Hydrophilic Antimicrobial Coatings for Medical Leathers from Silica-Dendritic Polymer-Silver Nanoparticle Composite Xerogels

Arkas¹,

Kythreoti²,

Favvas³

et al. 2022

Preprint

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Hybrid organic-inorganic (dendritic polymer-silica) xerogels containing silver nanoparticles (Ag-Nps) were developed as antibacterial leather coatings. The preparation method is environmentally friendly, based on two biomimetic reactions. Silica gelation and spontaneous (Ag-Np) formation were both mediated by hyperbranched poly (ethylene imine) (PEI) scaffolds of variable Mw (2000-750000). The formation of precursor hydrogels was monitored by dynamic light scattering (DLS). The chemical composition of the xerogels was assessed by Infra-Red Spectroscopy (IR) and Energy-dispersive X-ray spectroscopy (EDS) while the uniformity of the coatings was established by scanning electron microscopy (SEM). Release properties of coated leather samples and overall behaviour in water in comparison to untreated analogs were investigated by UV-Vis spectroscopy. Antibacterial activity was tested towards Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus, and antibiofilm properties against Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Acinetobacter baumannii, Enterococcus faecalis while SARS-Cov-2 clinical isolate was employed for the first estimation of their antiviral potential. Toxicity was evaluated using the Jurkat E6.1-cell line. Finally, water contact angle measurements were implemented to determine the enhancement of the leather surface hydrophilicity caused by these composite layers. The final advanced products are intended for use in medical applications.

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Surface modification of natural leather using diffuse ambient air plasma

Cited by 20 publications

References 22 publications

Comparative study on the physical entrapment of soy and mushroom proteins on the durability of bacterial cellulose bio‐leather

Comparative study on the physical entrapment of soy and mushroom proteins on the durability of bacterial cellulose bio‐leather

Hydrophobic Leather Coating for Footwear Applications by a Low-Pressure Plasma Polymerisation Process

Hydrophilic Antimicrobial Coatings for Medical Leathers from Silica-Dendritic Polymer-Silver Nanoparticle Composite Xerogels

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