Coffee filter material and coffee filter bag

Details Coffee filter material and coffee filter bag Coffee filter material and coffee filter bag

B - Operations, Transporting

65

D

210/6

B65D 81/34 (2006.01) A47J 31/08 (2006.01) B01D 39/16 (2006.01)

Patent

CA 2022246

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 (µm) 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 (µm) 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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