• 한국콘텐츠학회논문지
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• 제19권12호
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• pp.565-572
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• 2019

생산설비의 적절한 조합을 통한 생산 라인의 최적화는 국내 폴리에스터 산업의 경쟁력 강화를 위해 중요한 과제다. 본 연구의 목적은 폴리에스터 생산 라인의 최적화를 위해 생산 설비의 조합에 대한 우선순위를 평가하는 방법을 제시하고, 이를 통해 최적의 생산 라인 구성 방안을 도출하는데 있다. 이를 위해 폴리에스터 생산라인의 평가에 필요한 요소들을 도출하고, 이를 활용한 계층분석절차를 제시하였다. 이 방법을 활용하여 폴리에스터 생산라인 평가를 위한 요소들에 대한 가중치를 도출하였으며, 검토 중인 실제 생산라인들에 대한 우선순위와 그 시사점을 제시하였다.

• 한국염색가공학회지
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• 제24권1호
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• pp.91-96
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• 2012

The physical properties of recycled polyester yarns according to recycling methods were investigated. Virgin polyester draw texturized yarn(DTY), material-recycled(MR) polyester DTY and chemical-recycled(CR) polyester DTY were prepared. Surface morphology, thermal property, micro-structure and mechanical property of recycled polyester yarns were estimated. SEM-EDS analysis showed that the CR PET yarn had better crimp and more stable structure than MR PET yarn. Tm of the MR PET yarn was higher than that of the CR PET yarn. The intensity of the crystallization peak of the CR PET yarn was a little higher than that of the MR PET yarn. Tensile strength of the MR PET yarn was slightly higher than that of the CR PET yarn. Breaking elongation of the CR PET yarn was slightly higher than that of the MR PET yarn.

• 한국염색가공학회지
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• 제32권3호
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• pp.121-127
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• 2020

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.

• 한국염색가공학회지
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• 제24권2호
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• pp.113-120
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• 2012

Jacquard floor covering could be prepared from low-melting/regular sheath-core hybrid polyester, where the fiber is dyed in yarn state. With regard that the expected high shrinkage of the hybrid polyester in water makes problems in yarn dyeing, low-temperature dyeing properties of the hybrid polyester were studied. The rate of shrinkage of low-melting hybrid polyester exceeds 9% in hot water above $90^{\circ}C$, at such condition, cheese yarn dyeing is very difficult. Although disperse dyes exhaust in a relatively high speed on low-melting hybrid polyester, diffusion of these dyes to the core regular polyester was extremely slow under $90^{\circ}C$. Foron Blue E-BL 150, an anthraquinone E-type disperse dye, showed appreciable diffusion after 48hrs dyeing at $90^{\circ}C$. The fastness to rubbing and drycleaning were improved by one grade after reduction cleaning.

• 한국염색가공학회지
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• 제10권2호
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• pp.18-28
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• 1998

in order to overcome disadvantage of the conventional two bath dyeing method of polyester/cotton blends, it had prompted significant effort to the development of the one bath dyeing method which can accomplish sayings in time, energy and water usage. Also, when dyeing polyester/cotton blends by the one bath dyeing method, the high salt concentrations needed for the reactive dye can cause particles of disperse dye, used for the polyester component, to aggregate. A supplementary problem that can occasionally be happened is the change of hue that occurs on dyed polyester in an alkaline dyebath. To improve dyeing property of polyester/cotton blends, cotton component was pretreated with epichlolohydrine-trimethylamine hydrochloride in aqueous solution of sodium hydroxide to produce a cationized cotton that can be dyed under neutral conditions with reactive dye in a non-electrolytic or il little electrolytic dyebath. The one bath dyeing method of polyester/cationized cotton blends with disperse dye/reactive dye mixture resulted in a satisfactory dyeing property and color yield in comparison with ordinary two bath dyeing method.

• Elastomers and Composites
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• 제42권2호
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• pp.75-85
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• 2007

본 연구에서는 폴리에스터 코드와 고무 매트릭스간의 접착을 향상시키기 위한 접착시스템에 관해 조사하였다. 폴리에스터 코드의 표면 활성화를 통해 접착력을 증진시키기 위해 0.03, 0.05, 0.1, 0.2, 0.5, 1 및 5 wt.％ NaOH 용액으로 폴리에스터 코드를 개질하였다. 개질된 폴리에스터 코드와 결합제가 직접블렌딩된 SBR 고무혼합물과의 접착력을 평가한 결과 0.05 wt.％의 NaOH 농도에서 10분 개질 할 때 최대의 접착강도를 나타내었다. 1 wt.％ 이상의 NaOH 농도에서는 과도한 개질로 인한 폴리에스터 코드의 손상으로 인하여 접착력 실험 동안 코드의 파괴가 발생하였다. 또한, 개질한 폴리에스터 코드에 triallylcyanurate(TC) 접착제를 코팅한 후 상온에서 건조하여 접착시키는 경우 보다 $220^{\circ}C$의 고온에서 건조한 후 고무 매트릭스와 접착시킬 경우 가장 우수한 접착력을 나타내었다.

• 한국복합재료학회:학술대회논문집
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• 한국복합재료학회 2002년도 추계학술발표대회 논문집
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• pp.269-272
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• 2002

UV curing technology becomes important in various sectors of applications due to the high efficiency, environmental protection, and saving of energy. The effect of different proportion of vinylester (VE) and unsaturated polyester (UP) for VE/UP blend system was investigated in context of mechanical properties. The compositions of VE/UP blend were varied within 0:100, 20:80, 40:60, 60:40, 80:20, and 100:0 by weight percent. 1 wt% 1-hydroxy-cyclohexyl-phenyl-ketone was used as photoinitiator. The used intensity of UV light was in the range of $40~70 mW/\textrm{cm}^2$. The flexural strength of vinylester was not sensitive to the intensity of UV light. But the unsaturated polyester was very sensitive to the intensity of UV light. The flexural strength of vinylester was always superior to that of unsaturated polyester. The addition of the vinylester increased the flexural strength of blend system.

• 한국의류산업학회지
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• 제5권4호
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• pp.337-350
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• 2003

Fiber industry is export leading industry that guide national economy development after the 1960s in Korea. But lately, including China and Southeast Asia pursuit, domestic fiber industry is taking serious situation. Various kind methods can be proposed for high value added in fiber industry, the research about color is essential. The importance of color is increasing in modern textile and fashion industry. Color is important factor of textile and fashion industry because color affects strong influence in human's sensitivity. Color expresses by hue, value and chroma but fashion industry is using mainly hue and tone color system. Daegu Gyeongbuk area is domestic maximum syntheic fiber producing district. This study planned the polyester standard color collections for general color management of the polyester industry in Daegu Gyeongbuk. As basic research for this I investigated the color appearance distribution of polyester fabrics in Daegu Gyeongbuk that were produced for the recently 10 years and Japanese polyester color collections "SCOTDIC 2450". Reflect these study finding, in this research planned the usable standard color collections "Hue and Tone Polyester Standard Color 288". This research constructs insufficient domestic color infrastructure and expect that basic role to develop the competitive power for Korean fiber industry.

• 한국의류학회지
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• 제38권3호
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• pp.404-414
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• 2014

This study investigates the dyeability and fastness of jacquard fabric for blind using low-melting flame retardant polyester. Two types of jacquard fabric were prepared with a low-melting flame retardant polyester and regular polyester. The low-melting flame retardant polyester has a sheath and a core. The core consists of flame retardant polyester and the sheath consists of low-melting polyester. Disperse red 50 (DR 50), disperse blue 56 (DB 56), disperse yellow (DY 54) of E-type dyes and disperse 92 (DR 92), disperse blue 60 (DB 60), disperse yellow (DY 79) of S-type dyes were used and dyed on jacquard fabrics dependent of dyeing temperature and time. The fastness, dye exhaustion, color strength (K/S value), and colorimetric properties of jacquard fabrics were evaluated. The dyeability of S-type dyes were higher than E-type dyes. The experiments indicated optimum dyeability that the dyeing temperature was $110^{\circ}C$ for E-type dyes and $120^{\circ}C$ for S-type dyes for 40 minutes. The fastness to washing and light were excellent at a 4-5 grade.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1990년도 가을 학술발표회 논문집
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• pp.151-156
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• 1990

This is an experimental study to investigate chante of early strength of polymer concrete due to curing temperature change. Polymer binders that were used in the experiment include 2 types of epoxy system and 4 types of polyester system which are commercially producer in Korea. The study result showed that there was a difference in early strength by curing temperature. At $35^{\circ}C$ which is a higher than normal curing temperature, higher strengths were developed in polymer concretes prepared with KB-Clear and YD-128 of epoxy system, and G-550 and H-660 of polyester system. However, at the same temperature, reduced strengths were obtained for FH-103 and TR-132 of polyester system. Further study under various curing conditions with humidity and temperature change will warrant more generalized result.