Draft Zone에서 혼방섬유의 운동상태와 불균제에 대한 연구

장석윤 한국섬유공학회 1967 한국섬유공학회지 Vol.4 No.1

纖維長이 틀리는 2種의 纖維를 混紡하되 長纖維는 等長纖維를 擇하고 짧은 纖維는 不等長纖維를 擇하여 混紡할 때 Draft Zone의 ratch를 長纖維便에 맞추어 놓고 不等長纖維만 浮遊纖維가 되게하여 이들이 Draft Zone 內에서의 纖維先端密度를 나타내고 Forster의 Sub-roving의 槪念에 立脚해서 Draft Zone 內에서의 Sub-roving의 平均速度를 計算했고 Draft Zone 內에서 纖維가 이러한 값에 따르지 않을 때 Irregularity가 커지는 것으로 究明했다. 또 Draft Zone 內에서의 纖維相互間의 接觸狀態를 推論하고 이들의 接觸狀態는 餘他條件이 變化하지 않는 限纖維相互間의 摩擦에 依해서만 決定지워 진다고 推論하고 Draft Zone에서 纖維相互間의 接觸狀態는 의 關係가 파괴 될 때 Irregularity는 增加하며 이 關係는 纖維相互間의 마찰에 依해서 變化한다는 것을 推論하고 이것들을 實驗的으로 確認했다.

권축섬유의 하중-신장 거동

양철곤,원천화구 한국섬유공학회 1983 한국섬유공학회지 Vol.20 No.6

본 연구는 권축섬유의 하중-신장거동에 대한 이론적인 검토와 그 결과를 기존의 방법으로는 측정하기 어려웠던 가는 섬유의 강성도를 외팔보법(cantilever method)에 의하여 측정함으로서 실험적으로 확인하여 보았다. 섬유에 주어지는 권축형태가 다양하지만 유형별로 크게 분류할 때 싸인곡선 형태와 나선형태로 분류될 수 있으므로 두 형태로 구분하여 이론적으로 검토하여 보았으며, 실험에서는 폴리에스테르계섬유(2d, 3d) 싸인곡선 형태에, 잡종양모(56's)는 나선형태에 각각 적용시켜 검토하였다. 실험 결과로부터 권축섬유의 하중-신장에 있어 초기영역에서는 이론곡선과 실험 결과가 대체적으로 잘 부합되고 있음을 확인하였으며, 또한 단섬유의 강성도 측정에서 외팔보법을 이용하면 이형단면 섬유의 정확한 굽힘강성 측정을 손쉽게 할 수 있다는 결과로 이해되었다. The theoretical load-extension behaviour of crimped fiber was studied on the basis of experimental results. The crimped forms of samples were assumed sinusoidal for polyester staple fiber and helical for cross-bred wool fiber, respectively. Flexuarl rigidity of fiber which was one the important factors in load-extension behaviour was measure by canilever system apparatus developed by authors. It is shown that by putting the value of flexural rigdity(G) into derived formulas, the load-extension behaviour of a crimped fiber can be predicted precisely in the initial uncrimping region.

향 오일을 포함하는 마이크로캡슐의 제조 및 특성분석

박연흠,백남중,김영준 한국섬유공학회 2001 한국섬유공학회지 Vol.38 No.11

Melamine-formaldehyde microcapsules were prepared by conventional interfacial addition polymerization and characterized by Fourier transform(FTIR) spectroscopy, particle size analyzer, and scanning electron microscopy. The effects of polymerization variables such as the nature and concentration of surfactants, agitation speed, and agitation time on the particle size and particle size distribution were investigated. FTIR spectroscopic data shoed that perfume oil was successfully encapsulated in the microcapsule. The nature of surfactants had profound effects on the particle size and particle size distribution. It was also found that the use of poly(vinyl alcohol) was critically important to prevent agglomeration of microcapsule particles.

영구유연발수제에 관한 연구(제2보) -1,2-Disubstituted Imidazoline 화합물의 합성-

심정변,박홍수,홍성일,Sim, Jeong-Byeon,Park, Hong-Su,Hong, Seong-Il 한국섬유공학회 1975 한국섬유공학회지 Vol.12 No.3

1,2-Disubstituted imidazoline, such as 1-stearoly aminoethyl-2- heptadecyl imidazoline (SHI), 1-stearoyl dis (aminoethyl)-2- heptadecyl imidazoline(SDI) and 1-stearoyl tris (aminoethyl) -2-heptadecyl imidazoline(STI) were synthesized from stearic acid with polyalkylene polyamine, and then water-soluble 1,2-disubstituted imidazolinium salts, such as 1-stearoyl aminoethyl-1-glycidyl -2-heptadecyl imidazolinium chloride(SHIC), 1-stearoyl dis(aminoethyl)-1-glycidyl-2-heptadecyl imidazolinium chloride(STIC), 1-stearoyl aminoethyl-2-heptadecyl imidazolinium chloride(SAIC) and 1-stearoyl aminoethyl-1-benzyl-2-heptadecyl imidazolinium chloride(SBIC) were obtained by alkylating 1,2-disubstituted imidazoline with epichlorohydrin, hydrochloric acid and benzyl chloride. It was found that SHIC, SDIC and STIC could be used as the durable softening and water-repellenting agent, from the results of the measurements of the water repellency of fabrics treated with SHIC, SDIC, STIC, SAIC and SBIC. The structures of these compounds were also determined by elemental analyses and IR spectra.

티트리 정유를 이용한 마이크로캡슐의 제조 및 방향.향균가공

김혜림,송화순 한국섬유공학회 2001 한국섬유공학회지 Vol.38 No.11

Recently, the research on aromatic and antimicrobial finishing has been widely developed to meet the increasing consumer demands for pleasant and susceptible materials. The purpose of this study is to develop multifunctional fabrics by attaching microcapsules contaning tea tree oil on wool/polyester fabric. The prepolymer was made from melamine-fromaldehyde as wall materials of microcapsules. The melamine resin microcapsules were characterized by the mean particle size and size distribution, thermal properties and release behavior. antimicrobial activity and wash fastness of wool/polyester fabric treated withmicrocapsules were also investigated.

직물 소리의 감성 연구를 위한 SD법 관능검사의 활용

나영주,조길수 한국섬유공학회 2001 한국섬유공학회지 Vol.38 No.11

Sensorial tests were executed to find the sensibility and emotion brought about by the sound stimulus of 8 kinds of fabrics. 176 subjects participated in this test and they had the middle level of sensitive ear, sensitivity and sense discernment, and the high level of sense abundance, musical ability and musical hobby. The concepts of sensorial evaluation for fabric sound were extracted from 48 sensation adjectives, and divided to 7 groups by factor analysis: feel good, gooseflesh, strong, harsh/thick, light, dimension and ticklish. Without knowing the fiber types, subjects answered that the sound of flax and polyester-leno seemed like that of silk, thus they preferred it most. Woolen sound was thought as the strongest and the harshest, and polyestersurah was thought as the most gooseflesh. Silk sound was perceived to be the deepest and the widest. The prediction rate was high because 4 types among 8 were guessed correctly by the subjects by hearing the sound of the fabric only.

Poly(trimethylene terephthalate) 섬유의 고속방사에 따른 미세구조 형성과 물성

조현혹,주시환,鞠谷 雄士 한국섬유공학회 2001 한국섬유공학회지 Vol.38 No.9

PTT polymer was spun by high-speed melt spinning method, and the effects of take-up velocity and mass flow rate on the fiber structure and properties were investigated. The changes in the structure and property with take-up velocities were studied by measuring WAXD, DSC, density, birefringence, dynamic viscoelasticity and tensile test, etc. The orientation in crystalline phase obtained by WASD increased with the increase of take-up velocity. The orientation-induced crystallization of PTT fibers in high-speed melt spinning appeared at the take-up velocity of about 3~4km/min. This tendency was confirmed by the results of DSC thermograms, density, and birefringence. The birefringence increased abruptly up to take-up velocity of 4km/min, but it became almost constant when the take-up velocity exceeded 4km/min. The tendency was confirmed by the result of dynamic viscoelasticity. The maximum point of $\alpha$$_{c}$-dispersion shifted to a higher temperature, but shifted to a lower temperature when the take-up velocity exceeded 4 km/min. The fine structure and the mechanical properties were not affected significantly by mass flow rate.e.

니들펀칭 라미네이팅 부직포의 특성화 연구(II) -포강도 및 층간의 결합특성-

이순근,김동철,주창환 한국섬유공학회 2001 한국섬유공학회지 Vol.38 No.9

We have studied the strength and bonding characteristics of the needle punching laminated nonwovens(NPN) produced form polyester webs prepunched under different processing conditions, such as punching density and the number of layers. The characteristics investigated were tensile, tearing and peeling strength and surface roughness of NPLN fabrics. The tensile and tearing strength of NPLN fabrics generally increased with increasing number of layers and punching density. But their strengths slightly decreased above punching densities of 400 punches/$\textrm{cm}^2$ because of fiber breakage during the laminating process. Also, the peeling strength showed a similar trend as tensil and tearing results. It was found that the surface roughness varied with punching density and depended on the layer position of NPLN fabrics.

양모 혼방직물에 대한 효소 표백법 개발과 최적 조건

나영주 한국섬유공학회 2001 한국섬유공학회지 Vol.38 No.9

Wool/nylon fabrics were treated with enzymes and hydroperoxide for the purpose of bleaching. The effects of enzyme treatment under various conditions on the whiteness and strength of the fabrics were studied. The whiteness of fabrics treated with protease was the best and comparable to that obtained with hydroperoxide treatment. The strength of fabric treated with Alcalase decreased slightly in the beginning, then began to decrease rapidly. The optimum time for acceptable whiteness and strength of the fabric treated with Alcalase was 40 minutes. The treatment with compound enzymes was not effective, and the treatment with hydroperoxide following Alcalase treatment enhanced whiteness and showed the middle value of strength retention between the other two treatments. Protease bleaching is useful especially in the case of wool/nylon blends because nylon was attacked by hydroperoxide at long treatment times.

초 고강도 아라미드섬유

홍성일,김병철 한국섬유공학회 1982 한국섬유공학회지 Vol.19 No.2