직물의 표면 거칠기 분석과 손끝 마찰계수 측정을 통한 질감해석 연구 = Analysis of Human Touch Feeling by Using Measurement of Fingertip Friction Coefficient and Surface Roughness of Fabric

다국어 초록 (Multilingual Abstract)

Human touch feeling is important for high quality products. Factors of touch feeling are variety. We defined these factors of touch feeling for fabrics.
We determined these factor of touch feeling for fabrics such as warp density, weft density, surface roughness, amount of hairiness, account of hairiness, spring coefficient, damping coefficient, and fingertip friction coefficient of fabrics We determined surface roughness by using Fast Fourier Transform. these value are used for analysis of fabric structure. The peaks in Fast Fourier Transform were well expressing warp density and weft density of fabrics. Also, we measured amount of yarn hairiness in order to find the relationship with Hand Value which represented subjective human touch feeling. we looked into the relationship between touch feeling factors. The relationship between touch feeling factors and Hand Values showed influence of human touch feeling factors.
KOSHI which means rough feeling reduces according to increasing warp density. NUMERI which means soft feeling reduces according to increasing amount of hairiness and account of hairiness. Total Hand Value which means total human touch feeling of fabrics reduces according to increasing amount of hairiness. FUKURAMI which means feeling of thickness increases according to increasing spring coefficient and damping coefficient of fabrics. NUMERI and Total Hand Value increases according to increasing fingertip friction coefficient of fabrics.
We have made modeling to expert the Hand Value. The model was expressed B = A * R. B means Expecting Hand Value Vector. A means Weight Vector which are measured by using determination coefficient. R means Membership Evaluation Matrix which are measured by using relationship curve. We have applied our model to expect the NUMERI. The error of results are less than 5 % when we compare real NUMERI.
We established Expecting Hand Value model of quantitative objectivity for Hand Value which represent expression of subjective human touch feeling.

목차 (Table of Contents)

• List of Figures
• List of Tables
• ABSTRACT
• 1. 서론 = 1
• 1.1 연구의 배경 = 1
• 1.2 연구 목적 = 1
• 2. 실험 = 2
• 2.1 표면 거칠기 = 2
• 2.2 표면 거칠기 측정 장치의 구성 = 2
• 2.3 표면 거칠기 측정 = 4
• 2.4 직물의 경사·위사 밀도의 측정 = 5
• 2.5 잔털량과 잔털수의 측정 = 6
• 2.6 Creep 실험 = 7
• 2.7 손끝 마찰계수의 측정 = 8
• 2.8 마찰계수 측정장치의 구성 = 8
• 2.9 Hand Value 측정 = 11
• 3. 실험 결과 및 분석 = 13
• 3.1 표면 거칠기 = 13
• 3.2 표면 거칠기 그래프에 대한 FFT 해석 = 14
• 3.3 잔털량과 잔털수의 분석 = 21
• 3.4 Creep 실험 = 21
• 3.5 점성계수와 탄성계수 = 23
• 3.6 손끝 마찰계수 = 25
• 4. 토론 = 28
• 4.1 결정계수의 사용 = 28
• 4.2 경사·위사 밀도와 표면 거칠기의 FFT peak = 28
• 4.3 잔털과 Hand Value의 상관관계 = 33
• 4.4 직물의 점성·탄성계수와 잔털의 관계해석 = 37
• 4.5 손끝 마찰계수와 Hand Value 의 관계 = 42
• 5. 객관적 평가 모델 확립 및 고찰 = 44
• 5.1 여러 가지 촉감 요인들과 Hand Value 사이의 결정계수 = 44
• 5.2 Membership degree = 46
• 5.3 Weight vector = 50
• 5.4 Membership function을 이용한 평가 모델 확립 = 52
• 5.5 평가모델의 응용 = 53
• 5.6 고찰 = 55
• 6. 결론 = 56
• 7. 참고문헌 = 57