| 发明名称 |
Coffee filter material and coffee filter bag |
| 摘要 |
A coffee filter material and bag suitable for providing a high-quality coffee extract, having a nonwoven fabric filter layer which is composed of thermoplastic organic synthetic fibers, satisfies the relationships (1) to (4): 3</=x</=30 (1) y>/=0.2x (2) 1</=r30 (3) and r70</=50 (4) wherein x is a basis weight (g/m2) of the woven fabric, y is a cumulative volume value (cm3/g) of fine pores in the nonwoven fabric, r30 is a maximum radius ( mu m) of the fine pores observed when the volumes of the fine pores are cumulated from the small pore radius side and the cumulative volume value becomes equal to 0.3y, and r70 is a maximum radium ( mu m) of the fine pores observed when the volumes of the fine pores are cumulated from the small pore radius side and the cumulative volume value becomes equal to 0.7y, and is capable of absorbing in the wet state thereof at least 0.5 g/g of an oil and fat component from the coffee extract.
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| 申请公布号 |
US5496573(A) |
申请公布日期 |
1996.03.05 |
| 申请号 |
US19950395174 |
申请日期 |
1995.02.27 |
| 申请人 |
YAMANAKA INDUSTRY CO., LTD.;KURARAY CO., LTD. |
发明人 |
TSUJI, HIROSHI;SAISAKA, HIROMASA;MURAKAMI, HIDEO;SUZUKI, KAICHI;FUKUCHI, MASAAKI |
| 分类号 |
A47J31/06;A47J31/08;B01D39/14;B01D39/16;(IPC1-7):B65D85/00 |
主分类号 |
A47J31/06 |
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