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1.
Antimicrobial treatments have become more important for the textile materials especially used in sportswear, activewear, and
casual wear since they can easily be contaminated by perspiration leading to bacterial growth and body odor. In this work,
antimicrobial activity of chitosan in a silica matrix on pretreated wool fabrics was studied. The pretreatment processes were
applied by two different ways (enzymatic and enzymatic+hydrogen peroxide). Afterwards chitosan solutions were applied to the
untreated samples and to the samples that were pretreated by two different ways to give antimicrobial effects. The antimicrobial
activity of wool fabrics treated in various methods was assessed before and after repeated washings (up to 10 cycles) by the
application of standard test method AATCC 147-1998. The morphology of the treated fabrics was investigated by SEM and their
characterizations were made by the FT-IR spectral analysis. Results revealed that pretreatment ways and chitosan application
methods were quite important for adsorption and diffusion of chitosan on wool fabrics and washing stability. From the SEM
images, it was clearly observed that pretreatment processes caused some degradation on the surface of the fiber; but combined
processes were found to be less degradative and more effective. 相似文献
2.
Study of antimicrobial activity of aloevera, chitosan, and curcumin on cotton, wool, and rabbit hair 总被引:1,自引:0,他引:1
Aloevera, chitosan, and curcumin were applied in alone and in combination with each others on cotton, wool and rabbit hair
by exhaustion method for the assessment of their antimicrobial activity. The antimicrobial activity of these natural ingredients
was better in peroxide treated cotton, formic acid treated wool/rabbit hair fibrous substrates than their corresponding intact
ones. Aloevera shown better antimicrobial activity than chitosan and curcumin when applied alone and its antimicrobial activity
was enhanced by addition of both chitosan and curcumin. The application of aloevera+chitosan+curcumin combination on peroxide
treated cotton and formic acid treated wool/rabbit hair fibrous substrate was fast up to twenty five washing cycles. 相似文献
3.
Cristina Canal Ricardo Molina Enric Bertran Antonio Navarro Pilar Erra 《Fibers and Polymers》2008,9(3):293-300
Knitted wool and wool/nylon blend dyed fabrics were treated with low temperature plasma (LTP) to achieve optimum shrink-resistance
without impairing surface topography, colour or fastness to washing of the fabrics. As LTP tends to impair handle of the fabrics,
both wool and wool/nylon blend fabrics were submitted to industrial softening and/or biopolymer treatments after LTP treatment,
leading to hydrophilic wool and wool/nylon blend fabrics with improved shrink-resistance without any colour changes and good
fastness to washing. The results obtained were compared with those obtained by an industrial shrink-resist treatment. 相似文献
4.
Hsiang-Jung Tseng Shan-hui Hsu Mien-Win Wu Tien-Hsiang Hsueh Pei-Chi Tu 《Fibers and Polymers》2009,10(1):53-59
Chitosan is a natural non-toxic biopolymer and is widely used in various fields because of the antimicrobial activities. In
this study, the properties of nylon textiles grafted with chitosan oligomer or chitosan polymer after being activated by open
air plasma were evaluated. Results showed that nylon textiles grafted with chitosan polymer had better antibacterial performances
than those grafted with chitosan oligomer. Air plasma activation at a higher speed (26 m/min) for a few times facilitated
the grafting of chitosan and critically determined the antibacterial activities. Further treatment with air plasma after grafting
improved the antibacterial effect. Overall, chitosan-grafted nylon textiles showed good antibacterial potential as well as
biocompatibility. 相似文献
5.
The effect of scouring, bleaching and dyeing on the low stress mechanical and surface properties of wool woven fabrics was
studied. Fabric properties were measured by the KES-FB system. In general, mechanical properties of the treated fabrics are
greatly affected by scouring, moderately by dyeing and least by bleaching. 相似文献
6.
The fuzzing and pilling of untreated, chlorinated and oxidized wool knitted fabrics were compared with frictional coefficients
measured by capstan method, surface modification observed by scanning electron microscopy (SEM), the surface roughness and
the scale height assessed by atomic force microscopy (AFM), and hairiness imaged on the three-dimensional rotational microscopy.
The pilling comparative experiments of the corresponding knitted fabrics were conducted by means of Pillbox method. Experimental
results showed that some scales on the oxidized fiber surface were partially cleaved and some grooves generated. With oxidization
treatment, the anti- and with-scale of friction coefficient increase with decreasing the thickness of scales and the yarn
hairiness. There is good correlation between the result of AFM and the change in frictional coefficients. The pilling grade
of knitted fabric comprised of oxidization wool is 2.5, and the average numbers of pills per 25 cm2 is 25. It is postulated that the surface topography, the frictional properties of oxidized wool fibers and surface hairs
of corresponding yarns may limit the ability of those surface fibers to form fuzz and of those fuzz for pill formation. 相似文献
7.
The nanochitosan particles were prepared by ionic gelation method using sodium tripolyphosphate (TPP) as anionic chemical agent. Structural and morphological properties of the nanoparticles were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FTIR) analyses. The results showed that nanoparticles were spherical with a diameter range of 17-105 nm. After nanochitosan synthesis, the effects of chitosan and nanochitosan concentrations on the dyeability, fastness properties, shrink-proofing, tensile strengths, and surface friction coefficients of untreated and plasma treated wool fabrics were investigated. The studies revealed that nanochitosan treated wool fabric possesses better dyeing and shrink-proofing properties in comparison with conventional chitosan treated fabrics. 相似文献
8.
Yu-Bin Chang Pei-Chi Tu Mien-Win Wu Tien-Hsiang Hsueh Shan-hui Hsu 《Fibers and Polymers》2008,9(3):307-311
Chitosan is a natural nontoxic biopolymer used widely in various fields due to the antimicrobial activities. In this study,
the properties of polyester fabrics grafted with chitosan oligomers/polymers after being activated by atmospheric pressure
plasmas were evaluated. The antibacterial effect was most evident when the surface of fabrics was activated by atmospheric
pressure plasma for 60 to 120 seconds and grafted with chitosan oligomers. The modified fabrics also exhibited good biocompatibility.
This process can be applied to a large area and used to produce antibacterial polymer fibers. 相似文献
9.
This paper reports on an antimicrobial finishing for polyamide with high washfastness. As antimicrobial agent modified silica sols containing silver components are used as coating agent and are applied to the polyamide fabric by using a semi-industrial procedure. The antimicrobial properties of coated polyamide fabrics are determined against the bacteria E. coli. Significant antimicrobial effects are observed even after 40 washing cycles. The amount of silver on the polyamide fabrics was measured by using ICP-OES. Besides this, samples are investigated by means of UV/Vis-spectroscopy and scanning electron microscopy. Furthermore textile properties as, e.g., air permeability and mechanical properties were measured. Due to high antimicrobial effect and the strong washfastness of this finishing, this reported method could be of high interest for industrial production processes. 相似文献
10.
Influence of chitosan on the effects of proteases on wool fibers 总被引:1,自引:0,他引:1
Textile processes generally produce a large amount of wastewater and cause a negative environmental impact. The use of proteases
in wool finishing could be an appropriate alternative to classical finishing methods. However, the enzymatic treatment could
cause excessive fiber damage. The application of biopolymer chitosan on wool fabrics prior to proteases treatment in attempt
to overcome the damage promoted by the enzymes has been studied. The treatments based on chitosan application followed by
enzymatic treatment reduce felting shrinkage, enhance whiteness degree, and improve dyeability of wool. Moreover, it plays
an important role in minimizing the wool fiber damage. 相似文献
11.
Jie Liu Ping Zhu Chuanjun Zhao Shuying Sui Zhaohong Dong Lin Zhang 《Fibers and Polymers》2014,15(8):1601-1608
Dyeing of wool fabrics with natural dyes from Phytolacca berries has been studied. The effect of dye concentration, dye bath pH, dyeing time and temperature were discussed. The influence of chitosan application on the dyeing properties of wool fabrics was investigated. The SEM photographs of chitosan treated wool fabrics clearly depict the deposition of chitosan on the fibers. The effect of chitosan concentration, dye bath pH, dyeing time and temperature has been studied by orthogonal experiment. It has been proved that the dyed wool samples pretreated by chitosan have higher color fastness, faster dyeing rate, and better antibacterial properties compared with untreated ones. 相似文献
12.
In this study, normal and dichlorodicyanuric acid (DCCA)-treated wool slivers were ultrasonicated in formic acid aqueous solutions. The effect of the ultrasonication condition on the wool fiber splitting was examined and the mechanism of the splitting by ultrasonication in formic acid was elucidated. No wool fiber splitting occurred at formic acid content up to 70 %, but the fiber splitting accelerated as the formic acid content increased from 75 %. Although no fiber splitting occurred up to 450W ultrasonic power, the degree of splitting increased significantly with increasing ultrasonic power above 450W. The wool fiber splitting by ultrasonication was heterogeneous and FE-SEM observations revealed a three-step splitting process: 1) full removal of scale, 2) removal of cell membrane complex (CMC), and 3) fiber splitting. A comparison of the fiber splitting of normal and DCCA-treated wool revealed that the scale of the ultrasonication-treated wool was removed by peeling off rather than by dissolution. 相似文献
13.
14.
Guohua Shan Lixia Jia Tao Zhao Chongye Jin Rui Liu Yuanshu Xiao 《Fibers and Polymers》2017,18(11):2196-2203
A novel flame retardant monomer DDPSi-FR containing organophosphorus and silicon was prepared using 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), 4-hydroxybenzaldehyde (HBA), and 3-glycidoxypropyltrimethoxysilane (GPTMS). The chemical structure of DDPSi-FR was characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). Subsequently, after treating the wool fabrics, the effects of the monomer on the flame retardancy, thermal stability, and mechanical properties were studied. The flame retardant and thermal properties were evaluated by conducting vertical flame tests, limiting oxygen index (LOI) determination, and thermogravimetric analysis (TGA). The results showed that improved flame retardancy and thermal stability were achieved. Notably, the flame retardancy was retained even after 15 washing cycles. The mechanical properties were evaluated using the bursting strength, and the results indicated that DDPSi-FR treatment improved the breaking strength. 相似文献
15.
Rajendran R Sundaram SK Radhai R Rajapriya P 《Pakistan journal of biological sciences: PJBS》2011,14(9):519-525
The conventional scouring process involving the harsh environment is slowly being replaced with environment friendly approach using enzymes. These enzymes remove the non cellulosic impurities present in the fabric. Such a process would enhance the absorbency of the fabric without appreciable strength loss and also would help in the proper dyeing and finishing of the fabric. In the present work pectinase enzyme was isolated from Fusariumn sp. and was optimized under different cultural conditions. The partially purified pectinase enzyme was used in the scouring of cotton fabric. The efficiency of the bioscoured cotton fabric was compared with that of the conventionally scoured fabric. It was found that the water absorbing character of the bioscoured fabric was found to be considerably higher than that of the conventionally scoured fabric. Also, the tensile strength of the cotton fabric was found to be higher for the sample treated using pectinase enzyme than the sample treated conventionally. The results of FTIR confer that the pectin and wax impurities were removed from the cotton surface in both the conventionally scoured and bioscoured fabrics. 相似文献
16.
Pleated wool fabrics were prepared by the treatment with ethylenediamine (EDA) at 90°C for 30 min. The degree of set, tensile
property and dyeing of the treated fabrics have been discussed in relation to the concentration of EDA in the treatment system.
No significant decreases in tensile strength and elongation, and great increases of exhaustion of synthetic and natural dyes
were observed. Pleat and flat set were successfully attained in a wide range of the concentration of EDA. Excellent dyeability
and setability of the fabrics obtained were considered to be associated with the existence of new crosslink, β-N-(2-aminoethyl)alanino-β-aminoalanine and the pendant group, β-N-(2-aminoethyl) aminoalanine produced by the reaction of EDA with dehydroalanine intermediate. 相似文献
17.
In this study, the natural pigment from sappan was used for the dyeing of wool fabrics after treatment with the protease and
transglutaminase. The influences of protease and transglutaminase on the UV/visible absorption spectrum of aqueous extract
of sappan were studied. The enzymatic modified wool was compared with non-modified wool in K/S value and fastness after direct
dyeing and mordant dyeing. It was shown that protease and transglutaminase made the absorbance at the λ
max
540 nm in visible region increase. It suggested that there might be some interaction between the enzymes and sappan dye and
the residual enzyme on wool fabric might affect the color of following dyeing. Compared to untreated wool, treatments with
protease and transglutaminase enhance K/S value of wool dyed subsequently with sappan. Modification of protease led to some decrease in wet rubbing fastness, whereas
transglutaminase had almost no influence on rubbing fastness. Enzymatic treatments have no influence on the washing fastness
for samples dyed with sappan. 相似文献
18.
Phosphorus-nitrogen (P-N) or sulfur (S) containing compounds are well known for their effectiveness as flame retardant additives for many polymeric systems. When either phosphorus or nitrogen is combined with sulfur, the new systems prove to be successful combinations. This research aims to learn the impact of two systems, P-N and S-P-N, on the flammability and thermal properties of cotton fabrics. The process includes the synthesis of two compounds, tetraethyl piperazine-1,4-diyldiphosphonate (TEPP) and O,O,O',O'-tetramethyl piperazine-1,4-diyldiphosphonothioate (TMPT), and the evaluation of flammability, thermal degradation, and surface morphology of the treated fabrics. Both compounds exhibit similar burning behavior and show improved flame retardancy and thermal properties when used on various cotton fabrics. Some unique flame retardant properties for the two compounds are also disclosed. 相似文献
19.
Polypropylene nonwoven fabrics were exposed to He/O2 atmospheric pressure glow discharge plasma. Surface chemical analysis and contact angle measurement revealed the surface
oxidation by formation of new functional groups after plasma treatment. Weight loss (%) measurement and scanning electron
microscopy analysis showed a significant plasma etching effect. It was investigated in low-stress mechanical properties of
the fabrics using Kawabata Evaluation System (KES-FB). The surface morphology change by plasma treatment increased surface
friction due to an enhancement of fiber-to-fiber friction, resulting in change of other low-stress mechanical properties of
fabric. 相似文献
20.
Mohammad Khajeh Mehrizi Sayed Majid Mortazavi Shadpour Mallakpour Seyed Mansour Bidoki Michel Vik Martina Vikova 《Fibers and Polymers》2013,14(10):1620-1626
In this study, cotton/nylon blended fabrics were treated with atmospheric air plasma at various times (30–60 s) and were subsequently printed with pastes containing carbon black nanoparticles. Properties of plasma treated fabrics such as visible-near infrared (Vis-NIR) reflectance, water contact angle, air permeability, and color fastness were measured. It was shown that increasing plasma treatment time decreases reflection level of treated fabrics in Vis-NIR region. Plasma treatment also enhanced the hydrophobicity of cotton/nylon fabrics observed by an increase in water contact angle. Plasma treated samples for 60 s demonstrated lower air permeability than those treated for 30 s. Furthermore, printed samples possessed acceptable levels of fastness against washing, light and crocking. 相似文献