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pISSN : 1229-0033 / eISSN : 2234-036X

2020 KCI Impact Factor : 0.36
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2020, Vol.32, No.3

  • 1.

    Quantitative Analysis of Relative Adsorption of Disperse Dyes on Polyurethane in Polyurethane-impregnated Polyester Microfibers

    Heejeong Jun | Suhyeon Park | Junheon Lee and 1other persons | 2020, 32(3) | pp.121~127 | number of Cited : 0
    Abstract PDF
    The analysis method of relative adsorption of disperse dyes on impregnated polyurethane resin and polyester fiber separately was investigated. The solvents for extracting the dyes from polyurethane resin and polyester fiber were determined by acetone and DMF, respectively. By extracting the dyed fibers with acetone at room temperature within 30 minutes, the dyes adsorbed only on the polyurethane resin could be extracted. And then by additional extracting the same fabrics with DMF at 95℃ for longer than 1 hour, the dyes adsorbed on polyester fabrics was extracted. This means that the dyes adsorbed on polyurethane and polyester could be extracted separately and that relative adsorption of the dyes on the both components could be analyzed quantitatively. Using this analysis method, the relative adsorption of a disperse dye was investigated after reduction clearing with various conditions.
  • 2.

    Dyeing Properties of Easily Dyeable m-Aramid Knit Fabric

    Bum Hoon Lee | 2020, 32(3) | pp.128~134 | number of Cited : 0
    Abstract PDF
    Heat and flame protecting cloth is usually made of meta aramid fiber because of its own properties. But the high inter molecular hydrogen bonding and high Tg is the reason of the difficulty to dye meta aramid fiber. Recently, it was commercialized that the easily dyeable meta aramid fiber(AMD) for improving dyeability. In this study, the dyeing properties of AMD dyed with cationic dyes were investigated. The K/S values of AMD were 5~10% higher than these of general meta aramid fiber(AM) in the case of 1%owf caused by the lower crystallinity of AMD. The difference between K/S values of AMD and AM was increased as increasing dyeing concentration. The washing and rubbing fastness grade of AM and AMD were similar and good to very good.
  • 3.

    Effect of Cyanoethylation Pretreatment on the Sublimation Transfer Printing of Cotton Fabric

    Do Gyu Bae | 2020, 32(3) | pp.135~141 | number of Cited : 0
    Abstract PDF
    The primary and secondary alcohols in cellulose reacted with acrylonitrile(AN) in the presence of strong alkalis to form cyanoethylated cellulose. The partially cyanoethylated cotton(CEC) fabric with AN in the presence of aqueous sodium hydroxide solution was described, including effects of treatment time and reagent concentrations. The weight increases of cotton fabric were shown to be linearly related to the treatment time, temperature and concentration of sodium hydroxide. The physical properties such as shrinkage ratio and tensile strength were proportional to the weight increases without significant impact on elongation. But the moisture regain decreased with decreasing hydrophilicity. The degree of substitution(DS) and transfer ratio were linearly related to the weight increases. In the CEC with increasing weight up to 24.9%, it has been obtained with DS up to 0.63-0.67 cyanoethyl groups per anhydroglucose and transferring ratio up to 87.7%. The color fastness to washing by sublimation transfer printing was improved by the cyanoethylation.
  • 4.

    The Dyeing Properties of Mugwort(Artemisia princeps) Extract using Nano-cellulose

    Park Youngmi | 2020, 32(3) | pp.142~149 | number of Cited : 0
    Abstract PDF
    The purpose of this study was to investigate the dyeing properties of mugwort extract by nano-cellulose(n-cell). When dyeing cotton, rayon(artificial silk, called Ingyeon) and silk with mugwort extract, the difference with and without 2 wt% n-cell which it diluted to 0.6% treatment was compared. It was found that the addition of n-cell changed the values of L*, -a*(+red ~ -green), and b*(+yellow ~ -blue) of all scoured cotton, rayon and silk fabrics, compared to dyeing only mugwort extract. Furthermore, it was confirmed that the ΔE and the K/S value slightly increased in all of the dyed cotton, rayon, and silk fabrics treated with n-cell at the same time as dyeing compared to the untreated ones. Therefore, by treating the fabric with n-cell, a natural cellulose component, at the same time as dyeing, it is expected to maintain stable fastness, which is a disadvantage of dyeing using natural dyes, and contribute to the utilization and commercialization of other natural dyes.
  • 5.

    Formaldehyde-Free Durable Flame-Retardant Finish of Cotton Using Hexachlorocyclophosphazene and Triethanolamine

    Jeong-Hwan Kim | Jinho Jang | 2020, 32(3) | pp.150~157 | number of Cited : 0
    Abstract PDF
    Hexachloro-cyclophosphazene(HCCP), a formaldehyde-free flame retardant (FR), was steam-cured with triethanol amine(TEA) to impart durable flame-retardancy to cotton fabrics. While the HCCP treatment alone showed very limited resistance to repeated laundering cycles, the addition of TEA substantially improved the laundering durability of the FR cotton up to twenty laundering cycles. The extended washing resistance was accomplished by the increased nucleophilic substitution of unreacted P-Cl groups in HCCP by the TEA resulting in the more densely crosslinked FR networks. With increasing molar ratio of TEA to the HCCP up to 2, the flame retarding effectivity and the synergistic effectiveness improved to 2.8 and 1.8 respectively. TGA and microscale combustion calorimetry verified the pyrolysis and combustion behaviors of the FR-cotton, which showed lower maximum pyrolysis and combustion temperatures together with substantially decreased peak pyrolysis and heat release rate, synergistically yielding larger amounts of carbonaceous chars. The formaldehyde-free HCCP and TEA can be a durable FR finishing agents for cotton fabrics acting through a solid-phase flame-retarding mechanism.
  • 6.

    Preparation and Evaluation of Self-cleaning Fabrics using Fe-doped TiO2 and Hexadecyltrimethoxysilane

    Yejin Mun | Seungbin Cho | Euigyung Jeong and 1other persons | 2020, 32(3) | pp.158~166 | number of Cited : 0
    Abstract PDF
    Self-cleaning fabric is a fabric having a function of decotamination via photodecomposition of photocatalyst or wash-off of contaminants on the superhydrophobic surface. TiO2 is the main photocatalyst for this purpose, but it only functions under UV light which is only a little portion of sunlight, compared to visible light. In this regard, this study aims to investigate Fe-doped TiO2 for improved photodecomposition from visible light sensitization to apply self-cleaning finishing of PET fabrics. Moreover, the Fe-doped TiO2 treated PET fabric was further treated with hexadecyltrimethoxysilane to provide superhydrophobicity on the PET fabrics. As a result of this dual treatment, the prepared fabric exhibited excellent phtodecomposition of methylene blue with 96.96% in 12h under sunlight and superhydrophobicity with water contact angle of 166.5° and roll-off angle of 7°. This suggested that the excellent self-cleaning functions can be privided to PET fabric via Fe-doped TiO2 and hexadecyltrimethoxysilane treatment.
  • 7.

    Manufacturing and Characterization of PVDF/TiO2 Composite Nano Web with Improved β-phase

    Sung Jun Bae | Il Jin Kim | Jae Yeon Lee and 5other persons | 2020, 32(3) | pp.167~175 | number of Cited : 0
    Abstract PDF
    In this study, the optimum conditions for manufacturing PVDF nano web according to various electrospinning conditions such as solution concentration and applied voltage conditions were confirmed. The optimum spinning conditions were studied by analyzing the changes in the radioactivity of PVDF/TiO2 nano web according to the TiO2 content and the content of β-phase closely related to the piezoelectric properties under established conditions. As a result, it was confirmed that the concentration of the spinning solution was 20 wt%, the applied voltage was 25 kV, and the TiO2 content was 5 phr. PVDF nano web and PVDF/TiO2 nano web were observed morphologies through Scanning Electron Microscope(SEM) analysis. Formation of β-phase by electrospinning was confirmed by Fourier transform infrared spectroscopy(FT-IR) and X-ray Diffractometer(XRD), and the effect of the trapped nano web structure on the piezoelectric properties was investigated.
  • 8.

    Study on the Applicability of the Air Cushion Material for Impact Relief through Thermal Bonding of High Strength Fabrics

    Ji Yeon Kim | Hun Min Kim | Mun Hong Min | 2020, 32(3) | pp.176~183 | number of Cited : 0
    Abstract PDF
    In order to study wearable air cushion materials capable of responding to massive impact in high-altitude fall situation, high tenacity woven fabrics were bonded by heat only depending on various type of thermoplastic films and then mechanical properties were measured. Tensile strength, elongation, and 100% modulus measurement results for 4 types of films show that TPU-2 has higher impact resistance and easier expansion than PET-1. After thermal bonding, the combination with the highest tensile strength was a material with a TPU-2 film for nylon and a PET-2 film for PET, so there was a difference by type of fabric. The tear strength of the bonded materials were increased compared to the fabric alone, which shows that durability against damage such as tearing can be obtained through film adhesion. All of the peel strengths exceeded the values r e quired by automobile airbags by about 5 times, and the TPU-2 bonded fabric showed the highest value. The air permeability was 0 L/dm2/min. For both the film and the bonded material, which means tightness between the fabric and the film through thermal bonding. It is expected to be applied as a wearable air cushion material by achieving a level of mechanical properties similar to or superior to that of automobile airbags through the method of bonding film and fabric by thermal bonding.