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  • SAGE Publications  (11)
  • Engineering  (11)
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  • Engineering  (11)
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  • 1
    Online Resource
    Online Resource
    Light-emitting fabrics integrated with structured polymer optical fibers treated with an infrared CO 2 laser
    SAGE Publications ; 2013
    In:  Textile Research Journal Vol. 83, No. 7 ( 2013-05), p. 730-739
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 83, No. 7 ( 2013-05), p. 730-739
    Abstract: This paper describes woven fabrics made from polymer optical fibers (POF), which are treated with a CO 2 laser so that the resultant surface notches on the POFs facilitate side emission of light. The transmission and side-emitting behavior of POF with surface notches are studied in term of the variation in bending curvatures, which is related to end-usage of the woven fabrics as flexible displays, wearable phototherapy devices and fashion accessories. The measured power of transmission of light from the POF rapidly decreases with increasing bending curvature. However, the measured power of side-emission of light from the notched POFs remains almost constant at various bending curvatures within the experimental range. Theoretical analysis of the light propagation in a notched POF is conducted, which illustrates that more light is reflected from one side of the notch when the bending curvature is increased hence the transmission of the light is decreased. The theoretical and experimental results reach a good agreement.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517512464299
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2013
    detail.hit.zdb_id: 2209596-2
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  • 2
    Online Resource
    Online Resource
    Investigation and evaluation on fine Upland cotton blend yarns made by the modified ring spinning system
    SAGE Publications ; 2015
    In:  Textile Research Journal Vol. 85, No. 13 ( 2015-08), p. 1355-1366
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 85, No. 13 ( 2015-08), p. 1355-1366
    Abstract: A modified ring spinning technology has been successfully applied to the production of yarns with reduced twist level and improved performance. Various US cottons and Chinese cottons have been covered in previous studies. In this paper, three combed rovings with different blending ratios of Upland and Extra Long cottons were adopted in a systematic investigation and evaluation on a fine modified ring yarn produced on a new modified spinning system that was developed to reduce the imperfections of fine yarns. The potentially important spinning parameters were proposed and their individual and interaction effects of spinning system parameters on the properties of fine modified ring yarn were quantitatively examined using the response surface methodology. Then with the optimum parameters, physical properties of the yarns and their knitted fabrics produced from three rovings were evaluated by comparing them with the conventional ones. Experimental results showed that yarns produced in the new modified spinning system had reduced imperfections; at low twist levels, fine modified yarns and resultant fabrics also showed improved performance. Moreover, properties of fiber materials and roving quality influenced the properties of modified yarns and knitted fabrics.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517514563717
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2015
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  • 3
    Online Resource
    Online Resource
    Characterization of a polyaniline/pre-oxidized fiber felt electromagnetic wave absorbing composite
    SAGE Publications ; 2022
    In:  Textile Research Journal Vol. 92, No. 7-8 ( 2022-04), p. 1183-1191
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 92, No. 7-8 ( 2022-04), p. 1183-1191
    Abstract: Firstly, a polyaniline/pre-oxidized fiber felt composite was prepared by in situ polymerization using pre-oxidized fiber felt as the substrate, aniline as the monomer, ammonium persulfate as the oxidant, and p-toluenesulfonic acid as the dopant. Secondly, the electromagnetic wave absorbing property and tensile property of the polyaniline/pre-oxidized fiber felt composite were investigated. Finally, the structure and composition were characterized by Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction, and differential scanning calorimetry. The results show that the reflection loss of the polyaniline/pre-oxidized fiber felt composite is the smallest at the 3000 MHz frequency, reaching –8.23 dB, and the average surface resistance is 2059.84 Ω, with good conductivity. The characterization analysis shows that polyaniline has been successfully loaded on the pre-oxidized fiber felt, and the protonation reaction occurs at the nitrogen atom on the imine -N-. The polyaniline structure is doped by p-toluenesulfonic acid with a certain degree of order and crystallinity, and the composite has good thermal stability.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/00405175211051953
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
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  • 4
    Online Resource
    Online Resource
    Electro-Mechanical Properties of Knitted Fabric Made From Conductive Multi-Filament Yarn Under Unidirectional Extension
    SAGE Publications ; 2005
    In:  Textile Research Journal Vol. 75, No. 8 ( 2005-08), p. 598-606
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 75, No. 8 ( 2005-08), p. 598-606
    Abstract: A theoretical model for electro-mechanical properties of intrinsically conductive knitted fabrics made from stainless steel multi-filament yarns under large uniaxial deformation is presented. The investigations are focused on the relationship between the load and electrical resistance of the fabric under uniaxial extension. A circuit network is proposed based on the loops configuration and fabric structure. The equivalent resistance of the fabric is obtained by solving the circuit equations of the network. In order to simplify the calculation of the contacting forces on the overlapped yarns, a two-dimensional hexagon model is used to represent the loop configurations. An image-capturing system is employed to record the images of the loop configurations during the extension process and the relationship between the configurations of the loops and the load imposed on the fabric is obtained. From the theoretical analysis and experimental investigations, it is found that the contacting resistance of the overlapped yarns in the fabric is the key factor that governs the sensitivity of the fabric sensor. In addition, the fabric structure that determines the structure of the circuit network is also an important factor affecting the characteristics of the fabric sensor.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517505056870
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2005
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  • 5
    Online Resource
    Online Resource
    Application of foam dyeing technology on ultra-fine polyamide filament fabrics with acid dye
    SAGE Publications ; 2019
    In:  Textile Research Journal Vol. 89, No. 23-24 ( 2019-12), p. 4808-4816
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 89, No. 23-24 ( 2019-12), p. 4808-4816
    Abstract: In this approach, the foam dyeing of polyamide filament fabrics with acid dye has been studied as a clean dyeing technology. The foam dyeing process parameters, including the blow ratio (BR), steaming temperature, time and humidity, were evaluated by color strength and color fastness. The results show that dodecanol and sodium carboxymethyl cellulose (CMC) mixed stabilizer could improve the foam stability and reduce the harm to human health. The optimum batch formula of dodecanol and CMC was 4:6. The K/ S value reached 3.58 at 11 BR, 100℃ steaming temperature, 20 min and 6.59% fabric moisture content. Compared with the exhaust dyeing process, foam dyeing can achieve the same level of color fastness with a higher K/ S value. These results suggest that foam dyeing is a simple and effective method for polyamide filament fabrics with acid dye, which can reduce the consumption of water, chemicals and energy, and accelerate production.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517519839377
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2019
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  • 6
    Online Resource
    Online Resource
    Effect of the cobalt ferrite and carbon fiber powder doping ratio on the electromagnetic properties of coated polyaniline-based polyester–cotton fabric
    SAGE Publications ; 2022
    In:  Textile Research Journal Vol. 92, No. 9-10 ( 2022-05), p. 1484-1494
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 92, No. 9-10 ( 2022-05), p. 1484-1494
    Abstract: In this project, firstly, polyaniline-based polyester–cotton fabric was prepared by in situ polymerization using polyester–cotton fabric as the base fabric, aniline as the monomer, ammonium persulfate as the oxidizer, and camphor sulfonic acid as the dopant. Secondly, cobalt ferrite/carbon fiber powder-coated polyaniline-based polyester–cotton fabric was prepared by the textile coating process using polyaniline-based polyester–cotton fabric as the base fabric, PU2540-type polyurethane as the adhesive, and cobalt ferrite and carbon fiber powder as functional particles. Finally, the effect of the cobalt ferrite and carbon fiber powder doping ratio on the shielding effectiveness, reflection loss, dielectric constant real part, imaginary part, and loss angle tangent of cobalt ferrite/carbon fiber powder-coated polyaniline-based polyester–cotton fabric was studied by using the controlled variable method with emphasis on the cobalt ferrite/carbon fiber powder doping ratio. The results show that in the frequency range of 0.01–3.0 GHz, when the doping ratio of cobalt ferrite to carbon fiber powder is 0:3, the reflection loss of cobalt ferrite/carbon fiber powder-coated polyaniline-based polyester–cotton fabric reaches the minimum value at 1.49 GHz, the minimum reflection loss is –21.4 dB, and the effective absorption band is 1.25–1.94 GHz. In the test band, the shielding efficiency, reflection loss, the real part and imaginary part of the dielectric constant, and the loss angle tangent of the carbon fiber powder-coated polyaniline-based polyester–cotton fabric are larger than those of cobalt ferrite-coated polyaniline-based polyester–cotton fabric. The smaller the doping ratio of cobalt ferrite to carbon fiber powder, the larger value of the shielding efficiency, reflection loss, the real part and imaginary part of the dielectric constant, and loss angle tangent of the cobalt ferrite/carbon fiber powder-coated polyaniline-based polyester–cotton fabric.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/00405175211060885
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
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  • 7
    Online Resource
    Online Resource
    Fabrication and evaluation of a notched polymer optical fiber fabric strain sensor and its application in human respiration monitoring
    SAGE Publications ; 2014
    In:  Textile Research Journal Vol. 84, No. 17 ( 2014-10), p. 1791-1802
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 84, No. 17 ( 2014-10), p. 1791-1802
    Abstract: This paper describes an intensity-based notched polymer optical fiber (POF) fabric strain sensor and its application in human respiration monitoring. A mechanical analysis illustrates geometrical profiles of constrained fiber loops on the fabric substrate. V-shaped notches are made by laser ablation on the sides of the POFs. The effects of loop parameters and processing conditions on the sensing performance are investigated. The experimental results show that the fabric sensor is more sensitive to strain with notches on the outer side of the loops, a small radius of the loops and a low scanning speed of laser. This fabric sensor exhibits a large measurable strain range of up to 21%. The achieved strain sensitivity is 3.77. The temperature and relative humidity have little effect on strain sensitivity between 0℃ and 60℃. A belt has been fabricated by integrating the fabric sensor for monitoring human respiration. The evaluation trials show a strong correlation between the belt system and a clinic monitor.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517514528560
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2014
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  • 8
    Online Resource
    Online Resource
    Simulation of the effects of structural parameters of glass fiber fabric on the thermal insulation property
    SAGE Publications ; 2018
    In:  Textile Research Journal Vol. 88, No. 17 ( 2018-09), p. 1954-1964
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 88, No. 17 ( 2018-09), p. 1954-1964
    Abstract: The impact of different structural parameters on the thermal insulation of glass fiber fabrics, by using numerical simulation, was investigated. The structural parameters investigated were the weave structure, warp density and yarn fineness. A series of structure models were calculated under the same boundary and initial conditions, which combine thermal radiation, conduction and convection. The simulation results have been validated by experiments. The experimental results and the predictions from numerical simulations were in good agreement. The results show that thermal insulation for the samples is in the order plain  〈  2/1 twill  〈  2/2 twill  〈  2/3 twill  〈  3/3 twill fabric, when using constant structure density and yarn fineness. Increasing the warp density, from 110 to 160 ends/10 cm, leads to a significant decrease in heat transfer performance. When the warp density increases to more than 160 ends/10 cm, the thermal insulation property shows a decreasing trend with an increase in warp density. Furthermore, thermal insulation performance of the samples dramatically increases as yarn fineness goes from 129 to 280 tex, and then decreases for yarn fineness greater than 280 tex. This study will provide the theoretical basis for the thermal design and application of fibrous materials.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517517715081
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2018
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  • 9
    Online Resource
    Online Resource
    Effect of doping ratio and amount of polyaniline, cobalt ferrite, and carbon fiber powder on the electromagnetic properties of coated polyester-cotton fabrics
    SAGE Publications ; 2022
    In:  Textile Research Journal Vol. 92, No. 19-20 ( 2022-10), p. 3816-3825
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 92, No. 19-20 ( 2022-10), p. 3816-3825
    Abstract: In this project, polyaniline powder was firstly prepared by in situ polymerization using aniline as the monomer, ammonium persulfate as the oxidant, and camphor sulfonic acid as the dopant. Next, polyester-cotton fabrics were used as the base fabrics, polyaniline, cobalt ferrite, and carbon fiber powder as the functional particles, and PU-2540 type polyurethane as the base, and single-layer coated polyester-cotton fabrics were prepared by the textile coating process. Finally, the effects of the polyaniline, cobalt ferrite, and carbon fiber powder doping ratio and functional particle content on the shielding effectiveness, reflection loss, real and imaginary parts of the dielectric constant, and loss angle tangent of single-layer coated polyester-cotton fabrics were focused on using the controlled variable method. The results show that in the frequency range of 0.01–3 GHz, when the doping ratio of polyaniline, cobalt ferrite, and carbon fiber powder is 1:0:3, and when the content of functional particles is 40%, the minimum reflection loss of single-layer coated polyester-cotton fabrics is –22.1 dB at 1.6 GHz, and the effective absorption bandwidth is 1.14 GHz.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/00405175221095738
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2022
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  • 10
    Online Resource
    Online Resource
    Preparation and study of electromagnetic properties of graphene/graphite/bismuth oxide three-layer coated textile materials
    SAGE Publications ; 2021
    In:  Textile Research Journal Vol. 91, No. 17-18 ( 2021-09), p. 1999-2014
    Details
    In: Textile Research Journal, SAGE Publications, Vol. 91, No. 17-18 ( 2021-09), p. 1999-2014
    Abstract: Three-layer coated composites with good electromagnetic properties were prepared on a plain polyester–cotton blended fabric with PU2540 polyurethane resin as a matrix; graphene, graphite and bismuth oxide were used as coating functional particles; and the influences of types of surface-layer functional particles, middle-layer functional particles and bottom-layer functional particles on electromagnetic properties of three-layer composites were explored. Results showed that when graphite, graphene and graphene were respectively used as bottom-layer, middle-layer and surface-layer functional particles, within the range of 1–1000 MHz, the polarization, dissipation and absorption-attenuation ability of the coated composite to electromagnetic waves was the strongest, and within the range of 10–3000 MHz, the wave-absorbing properties and shielding properties to electromagnetic waves of the coated composite were the strongest. When the frequency was 1600.7 MHz, the value of the reflection loss of the sample was the minimum, which reached –7.15 dB.
    Type of Medium: Online Resource
    ISSN: 0040-5175 , 1746-7748
    URL: Article
    DOI: 10.1177/0040517521994506
    RVK:
    ZS 0001
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2021
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