０９００９０６，繊維学会ファイバ８月号／報文－０１－高橋

Size: px

Start display at page:

Download "０９００９０６，繊維学会ファイバ８月号／報文－０１－高橋"

かずただこうじょう
9 years ago
Views:

1 Preparation of Functional Nonwoven Fabric KAMIKO Utilizing Wasted Tea Leaves Tetsuya Takahashi 1, Wakako Kasai 2, and Tetsuo Kondo 2 1 Faculty of Education, Shimane University, 1060, Nishikawatsu-cho, Matsue, Shimane , Japan 2 Bio-Architecture Center, Kyushu University, , Hakozaki, Higashi-ku, Fukuoka , Japan Abstract : Various fiber materials were mixed with wasted tea leaves to attempt the preparation of new KAMIKO materials. When konjac pastes was applied to the surface of compounded papers using hemp and wasted tea leaves, the paper properties increased in tensile index, bursting index, and stiffness. On the other hand, konjac pastes application was found to increase the air permeance of the papers. Konjac pastes application was also found to extend time required for the papers to absorb water droplets, showing a decrease in water absorbency. Furthermore, when the papers were sewed on a machine, konjac pastes application was found to improve seam strength of the papers by about 20 N. Moreover, the papers with konjac pastes applied were tested for deodorization effect using ammonia gas. The result showed that the papers containing even a small amount, 10wt%, of wasted tea leaves exhibited an excellent deodorization effect and that konjac pastes application affected the effect very little. The results presented above showed that the use of hemp greatly improved mechanical properties of compounded papers using wasted tea leaves, whereas konjac pastes application also effectively improved the papers in seam strength. (Received 20 January, 2009 ; Accepted 9 April, 2009) 1 1, Camellia sinensis 550ml N dtex 5mm 110

with wasted tea leaves to attempt the preparation of new KAMIKO materials.

2 Table 1 Composition of compounded papers containing wasted tea leaves. PL01 1.7dtex 5mm ml 100 PMC WS g MKZA6 40µm 1,800rpm 30kg/h PU-401 JIS-P g/m 2 25cm 25cm 410kPa 120 JIS-P ±2g/m wt% 2 Ca OH 2 Table 2 Components of konjac powder wt% Ca OH % 1.5wt % Ca OH % 2 No % = B A/A 100 A: B: 24 E-1010 S-3000N kv 200 JIS-P8113

75wt% 2 Ca OH 2 Table 2 Components of konjac powder. 8 0.5wt% Ca OH 2 0.02% 1.5wt % Ca OH 2 0.

3 15.0±0.1mm 250±1mm 180±1.0mm 2 20mm/min JIS mm 100mm JIS-P mm Fig. 1 Test method for seam strength. 80mm JIS-P ml φ28.6±0.1mm 642mm mm 100ml JIS-L1096 A 7mm 23±2 100μl mm 110mm mm 1.5mm 300mm/min 76mm % 78dtex g/dtex 4.9% 9.23g/dtex 5.0% 3.46g/dtex 4.3% % 400ml 500ml 2.0ml ppm 5 1±0.0001g 60±2ppm 500ml/min 3.0

1mm 642mm 2 50 50mm 100ml JIS-L1096 A 7mm 23±2 100μl 0.1 25mm 110mm 2 3090 10mm 1.

4 Fig. 2 Scanning electron micrographs of papers for different coating states of konjac pastes ( 200) wt% 0.5wt% 4 70wt% 15.2N m/g 70wt% 60.8N m/g 100wt% 40wt% 60wt% 1.5wt% 2 100wt% 40wt% 60wt% 2 0.5wt% 1.5wt% 3 Fig. 3 Fig. 4 Relationship between deposition rate of konjac pastes and hemp content for different concentrations of konjac paste solutions. Relationship between tensile index and hemp contents for different concentrations of konjac paste (Binder content : 0.75wt%).

5 N m/g N m/g 30wt% 10wt% 60wt% 3 90wt% 10wt% wt% N m/g 5 a 60wt% N m/g 5 b 60wt% 28.0N m/g 90wt% 10wt% 2 3 Fig. 6 Relatonship between mechanical properties and hemp contents for different concentrations of konjac paste solutions. (a) Bursting index (b) Stiffness Fig. 5 Tensile index of ternary compounded papers containing hemp (30wt%) and wasted tea leaves (10wt%). (a) Dry condition (b) Wet condition

6 Relatonship between mechanical properties and hemp contents for different concentrations of konjac paste

6 1.5wt% 2 8 a 8 b 1 8 a Fig. 7 Relatonship between performances and hemp contents for different concentrations of konjac paste solutions. (a) Air permeance (b) Water absorbenc Fig. 8 Performances of compounded papers versus deposition rate of konjac pastes for different hemp contents. (a) Air permeance (b) Water absorbency 8 b 40wt% 60wt% 1.5wt% 0.75wt% 9 100wt% 16N 3 100wt%

paste solutions. (a) Air permeance (b) Water absorbenc Fig.

7 Fig. 9 Relationship between seam strength and hemp contents for different coating states of konjac pastes (Binder content : 0.75wt%). Fig. 10 Relationship between seam strength and deposition rate of konjac pastes for compounded hemp papers containing 10wt% of wasted tea leaves (Binder content : 0.75wt%). 90wt% 10wt% N 25mm 1.5mm 25mm dtex 78dtex g/dtex N N 11 90wt% 10wt% 2 0.5wt% 1.5wt% 10wt% 30wt% 60wt% 3 1.5wt% 100wt% 100wt% 60±1ppm 100wt% % 100wt% 100wt% % 10wt% 90wt% % 3 0.6% 0.5wt% 0.9% 1.5wt% 1.1% 100wt% 100wt% 10wt% 30wt% 60wt % 3 1.5wt% 60wt%

content : 0.75wt%). 90wt% 10wt% 2 10 25N 25mm 1.5mm 25mm 16 17 234dtex 78dtex 3 9.23g/dtex 1 21.2N 16 17 340 370N 11 90wt% 10wt% 2 0.5wt% 1.

8 Fig. 11 Deodorization of compounded papers containing 10wt% of wasted tea leaves for different concentrations of konjac paste solutions (Binder content : 0.75wt%). Initial ammonia gas concentration is 60±2ppm wt % 1 1. I. Hirai, T. Gunji, Sen i Seihin Shohi Kagaku, 40, (1999). 2. M. Kiyota, Ifuku Gakkaizasshi, 21, (1977). 3. M. Kiyota, Ifuku Gakkaizasshi, 21, (1977). 4. M. Maki, Sen i Gakkaishi, 51, (1995). 5. T. Takahashi, T. Kondo, W. Kasai, H. Yokota, T. Kunitake, Sen i Gakkaishi, 63, (2007). 6. T. Takahashi, W. Kasai, T. Kondo, H. Yokota, T. Kunitake, Sen i Gakkaishi, 64, (2008). 7. T. Takahashi, W. Kasai, T. Kondo, H. Yokota, T. Kunitake, Sen i Gakkaishi, 64, (2008). 8. Y. Masuda, Plant and Process, 9, (2005). 9. Japanese Standards Association, JIS P-8209.

4. M. Maki, Sen i Gakkaishi, 51, 340-344 (1995). 5. T. Takahashi, T. Kondo, W. Kasai, H. Yokota, T. Kunitake, Sen i Gakkaishi, 63, 256-263 (2007). 6. T. Takahashi, W. Kasai, T. Kondo, H. Yokota, T. Kunitake, Sen i Gakkaishi, 64, 252-258 (2008).

０８０１２９７，繊維学会ファイバ１１月号／報文－０１－青山

０８０１２９７，繊維学会ファイバ１１月号／報文－０１－青山 Faculty of Life Environment, Kinjogakuin University, Moriyama-ku, Nagoya 463-8521, Japan Faculty of Home Economics, Japan Women s University, Bunkyo-ku, Tokyo 112-8681, Japan AStudy on Easing by a Variable