표제지
목차
Ⅰ. 서론 10
Ⅱ. 연구사 13
1. 색(Color) 13
2. 목재의 색 15
3. 목재의 변색과 변색방지 15
4. 목재의 표백 17
Ⅲ. 재료 및 방법 19
1. 재료의 준비 19
1) 시편의 준비 19
2) 목재 색의 측정 및 변색제거 정도 판정 19
3) 표백처리 20
4) 최적표백조건의 결정 20
Ⅳ. 결과 및 고찰 25
1. 반응표면분석법을 이용한 최적표백조건의 결정 25
2. 소나무 최적 표백조건의 도출 및 평가 30
3. 팽나무 최적 표백조건의 도출 및 평가 42
Ⅴ. 결론 54
참고문헌 55
Abstract 57
Table 1. The electro magnetic spectrum ranging from radio waves to gamma rays. 13
Table 2. Feelings of various colors. 14
Table 3. Types of wood bleaching reagents. 18
Table 4. Change of lightness measured before/after bleaching of stained samples. 23
Table 5. Summary of bleaching efficiency of stained pine under various bleaching conditions. 26
Table 6. Summary of bleaching efficiency of stained Japanese Hackberry under various bleaching conditions. 27
Figrue 1. Diagram of a 2³ factorial central composite design. 21
Figure 2. Comparison of color changes of japanese red pine before/after bleaching experiment. 28
Figure 3. Comparison of color changes of japanese hackberry before/after bleaching experiment. 29
Figure 4. Effect of temperature and time on lightness differences of japanese red pine when hydrogen peroxide is 1%. 32
Figure 5. Effect of temperature and time on lightness differences of japanese red pine when hydrogen peroxide is 2%. 33
Figure 6. Effect of temperature and time on lightness differences of japanese red pine when hydrogen peroxide is 3%. 34
Figure 7. Effect of concentration and time on lightness differences of japanese red pine when temperature is 20℃. 36
Figure 8. Effect of concentration and time on lightness differences of japanese red pine when temperature is 40℃. 37
Figure 9. Effect of concentration and time on lightness differences of japanese red pine when temperature is 60℃. 38
Figure 10. Effect of temperature and concentration on lightness differences of japanese red pine when bleaching time is 3 hours. 39
Figure 11. Effect of temperature and concentration on lightness differences of japanese red pine when bleaching time is 4 hours. 40
Figure 12. Effect of temperature and concentration on lightness differences of japanese red pine when bleaching time is 5 hours. 41
Figure 13. Effect of temperature and time on lightness differences of japanese hackberry when hydrogen peroxide is 1%. 44
Figure 14. Effect of temperature and time on lightness differences of japanese hackberry when hydrogen peroxide is 2%. 45
Figure 15. Effect of temperature and time on lightness differences of japanese hackberry when hydrogen peroxide is 3%. 46
Figure 16. Effect of concentration and time on lightness differences of japanese hackberry when temperature is 20℃. 48
Figure 17. Effect of concentration and time on lightness differences of japanese hackberry when temperature is 40℃. 49
Figure 18. Effect of concentration and time on lightness differences of japanese hackberry when temperature is 60℃. 50
Figure 19. Effect of temperature and concentration on lightness differences of japanese hackberry when bleaching time is 3 hours. 51
Figure 20. Effect of temperature and concentration on lightness differences of japanese hackberry when bleaching time is 4 hours. 52
Figure 21. Effect of temperature and concentration on lightness differences of japanese hackberry when bleaching time is 5 hours. 53