Effects of aroma chemical vapor pressure and fiber morphology on the retention of aroma chemicals on cotton and poly(ethylene terephthalate) fabrics

Obendorf, S. Kay; Liu, Haiqing; Leonard, Michael J.; Young, Timothy J.; Incorvia, Michael J.

doi:10.1002/app.22676

Cited by 8 publications

(16 citation statements)

References 10 publications

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“…To clarify this, it will be necessary to run the retention experiments with all samples with radiolabelled odoriferous molecules, including isovaleric acid, in a future experimental set‐up that focusses on vapour uptake. Obendorf et al ., for example, has already shown the existence of an inverse relationship between vapour pressure of odour substances and chemical retention on fabrics …”

Section: Resultsmentioning

confidence: 99%

Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid

Hammer

Berner-Dannenmann

Hoefer

2013

Flavour & Fragrance J

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The retention of malodours, especially sweat on fabrics, is a widely discussed problem in the textile industry and science. Since a quantitative analysis of the retention of sweat odour molecules on fibres has not been addressed so far, we used liquid scintillation counting to measure the adhesion/dehesion of 14C‐labelled isovaleric acid, a lead substance of sweat odour, to knitted fabrics of comparable textile structure made of pure cotton, wool or polyester. Significant retention differences were detected, with polyester showing the highest release of isovaleric acid after 3 h and 20 h. Fabric finishes with β‐cyclodextrin enhanced odour retention on cotton and polyester considerably. To study local influences of the clothing materials on odour release, we simulated in diffusion chamber cells a fabric/human skin wear situation using an artificial skin with skin‐like composition, topology and mechanical characteristics. Unidirectional transepidermal water vapour release of the skin model modulated the odour retention. Finally, all samples were subjected to a sensory evaluation test with trained panellists using olfactometry and a non‐labelled artificial sweat containing isovaleric acid as lead substance. Again, polyester showed little retention capacities, whereas the cyclodextrin finish enhanced binding of the artificial sweat and thus reduced its perception. The phase II approach revealed that perceived malodour intensity clearly depended on the finish and fibre type. The presented data and methods provide a basis for future optimization of clothes in terms of sweat odour management in their respective end uses, e.g. sport or business activities. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid

Hammer

Berner-Dannenmann

Hoefer

2013

Flavour & Fragrance J

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“…Carboxylic acid methyl esters such as methyl ester dodecanoic acid were observed in 91.67% of the cases where the samples were collected on both polyester and wool fabrics, while methyl ester octanoic acid was common between cotton and rayon fiber chemistry samples in 75.00% of the cases. It has been shown that there is an inverse relationship between vapor pressure and chemical retention on fabrics (48). The differences observed within these two acid ester compounds (differing by only four carbons) on each medium may be attributed to the different vapor pressures of each compound which could effect the retention of the chemical on the specific fiber.…”

Section: Resultsmentioning

confidence: 99%

“…The reported higher scent mass amounts within this study for both genders in the cotton fabric are supported by empirical data on the analysis of aroma chemicals on fabrics in which it is stated that these chemicals are typically released at much faster rates from polyester fibers than cotton. These results in turn are directly related to the distribution of the chemical in the external and internal fiber regions (51,52). …”

Section: Resultsmentioning

confidence: 99%

The Evaluation of Human Hand Odor Volatiles on Various Textiles: A Comparison Between Contact and Noncontact Sampling Methods*,†

Prada

Curran

Furton

2011

Journal of Forensic Sciences

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The focus of this study is to compare contact and noncontact human scent collection procedures across an array of textiles (cotton, rayon, polyester, and wool) to determine an optimized collection method for human scent evidence. Six subjects were sampled in triplicate for each textile and collection mode, and the samples were then analyzed through headspace solid-phase micro-extraction in combination with gas chromatography/mass spectrometry (SPME-GC/MS). Contact sampling with cotton material has been shown to be the collection method that yielded the greatest number of volatile compounds and the highest scent mass amounts. Through Spearman rank correlations, it was shown that an individual's scent profile is more reproducible within samples collected on the same textile type than between different materials. Furthermore, contact sampling with cotton fabric demonstrated the greatest reproducibility producing the lowest amount of type I and type II errors with 90.85% of the samples distinguished at the 0.9 match/no match threshold.

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“…[1][2][3][4]. Typical adsorption of an aroma chemical on cotton fabric in aqueous SDS and CTAC surfactant systems containing 10 mM and 100 mM NaCl is illustrated by the decalactone case in Fig.…”

Section: Effect Of Surfactantsmentioning

confidence: 99%

Adsorption of Aroma Chemicals on Cotton Fabric in Different Aqueous Environments

Obendorf

Liu

Tan

et al. 2008

J Surfact & Detergents

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Surfactants enhance adsorption of an aroma chemical on cotton fiber. Strong hydrophobic and electrostatic interactions between surfactant and fiber substrate result in higher adsorption of surfactant/aroma chemical aggregates than for the aroma chemical alone, with higher adsorption for cationic systems than for anionic systems. Adsorption is attributed to solution physical entrapment, hydrophobic interaction, dispersion forces, and interaction with surfactant molecules adsorbed on fiber. Log P and water solubility are important factors in aroma chemical adsorption. Hydrophobicity increased selective partitioning of aroma chemicals on the fiber surface particularly in the presence of surfactants. Statistical analyses indicate some evidence of polar-polar interaction between aroma chemicals and cellulose. With no surfactant, more adsorption is often observed in systems with a higher concentration of NaCl. The screening effect of electrolytes increases with the electrolyte reducing the energy of the liquid-solid interface. Lower interfacial energy results in increased adsorption of an aroma chemical on the fiber surfaces. Electrolyte screening affects aroma chemical adsorption most for anionic surfactant systems. Increase in the concentration of the electrolyte increases the screening effect that reduces the repulsive forces between the anionic molecules and weakly electronegative cotton fiber surfaces. In a cationic system, the screening effect of the electrolyte reduces adsorption of aroma chemicals with increased electrolyte concentration, due to the screening-reducing attraction between cationic surfactant molecules and the fiber surface. Chemical functionality shows a significant effect (alkanol C ketone C aldehyde [ ester) on adsorption. Adsorption increased with increasing molecule ovality. Statistical analyses indicate that molecular shape within a chemical class of compounds influences adsorption of the aroma chemical.

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Effects of aroma chemical vapor pressure and fiber morphology on the retention of aroma chemicals on cotton and poly(ethylene terephthalate) fabrics

Cited by 8 publications

References 10 publications

Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid

Quantitative and sensory evaluation of malodour retention of fibre types by use of artificial skin, sweat and radiolabelled isovaleric acid

The Evaluation of Human Hand Odor Volatiles on Various Textiles: A Comparison Between Contact and Noncontact Sampling Methods*,†

Adsorption of Aroma Chemicals on Cotton Fabric in Different Aqueous Environments

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