A manufacturing method for an aluminum nonwoven fiber material includes: a block forming procedure where molten aluminum is extruded into a space through micropores (42a) and, moreover, aluminum fibers formed by extrusion are maked fall on a predetermined support surface (43), thereby forming an aluminum fiber block on the support surface (43); a short fiber removing procedure in which removing treatment on aluminum short fibers shorter than a predetermined length from the aluminum fiber block is performed; and a pressurization procedure in which the aluminum fiber block subjected to the short fiber removing procedure is pressurized to form the aluminum nonwoven fiber material.

A manufacturing method for an aluminum nonwoven fiber material includes: a block forming procedure where molten aluminum is extruded into a space through micropores (42a) and, moreover, aluminum fibers formed by extrusion are maked fall on a predetermined support surface (43), thereby forming an aluminum fiber block on the support surface (43); a short fiber removing procedure in which removing treatment on aluminum short fibers shorter than a predetermined length from the aluminum fiber block is performed; and a pressurization procedure in which the aluminum fiber block subjected to the short fiber removing procedure is pressurized to form the aluminum nonwoven fiber material.

The present invention relates to an alumina fiber having a mass ratio (A/C) of the content (A) of iron oxide as expressed in terms of ferric oxide to the content (C) of titanium oxide of 2 to 121; and a mass ratio (B/C) of the content (B) of calcium oxide to the content (C) of titanium oxide of 0.4 to 14, with a sum total of the content (A) of iron oxide, the content (B) of calcium oxide, and the content (C) of titanium oxide being 0.0170 to 0.1180% by mass.

The present invention relates to an alumina fiber having a mass ratio (A/C) of the content (A) of iron oxide as expressed in terms of ferric oxide to the content (C) of titanium oxide of 2 to 121; and a mass ratio (B/C) of the content (B) of calcium oxide to the content (C) of titanium oxide of 0.4 to 14, with a sum total of the content (A) of iron oxide, the content (B) of calcium oxide, and the content (C) of titanium oxide being 0.0170 to 0.1180% by mass.

The present invention is directed to tamper-evident mesh material, methods of manufacture therefor, and tamper-evident bags manufactured therefrom. The tamper-evident mesh material of the present invention may be used, for example, in the manufacture of a variety of tamper-evident security bags for use in applications where it is desirable to detect any traces or evidence of tampering with or of unauthorized access to the contents of the bag.

The present invention is directed to tamper-evident mesh material, methods of manufacture therefor, and tamper-evident bags manufactured therefrom. The tamper-evident mesh material of the present invention may be used, for example, in the manufacture of a variety of tamper-evident security bags for use in applications where it is desirable to detect any traces or evidence of tampering with or of unauthorized access to the contents of the bag.

The present invention provides a cushion member and a stage member provided with the cushion member, the cushion member including a non-woven fabric formed by binding or entangling metal fibers, wherein when the cushion member is compressed, the cushion member undergoes compressive deformation and the following compressive deformation ratio is 5% to 80%:

Compressive deformation ratio=(T0T1)/T0100, T0: film thickness of cushion member before application of load, and T1: film thickness of cushion member after application and release of load.

The present invention provides a cushion member and a stage member provided with the cushion member, the cushion member including a non-woven fabric formed by binding or entangling metal fibers, wherein when the cushion member is compressed, the cushion member undergoes compressive deformation and the following compressive deformation ratio is 5% to 80%:

Compressive deformation ratio=(T0T1)/T0100, T0: film thickness of cushion member before application of load, and T1: film thickness of cushion member after application and release of load.

A copper fiber nonwoven fabric for wiring in which copper fibers are partially bound to each other, wherein when a gas in a standard state is allowed to pass through the copper fiber nonwoven fabric for wiring, in a state where a constant current is kept flowing to maintain a temperature of 80 C., perpendicularly with respect to a plane of the copper fiber nonwoven fabric for wiring for 1 minute at a flow rate of 20 L/min per 1 cm.sup.2 of cross sectional area, a temperature of the copper fiber nonwoven fabric for wiring decreases by at least 30 C.

A copper fiber nonwoven fabric for wiring in which copper fibers are partially bound to each other, wherein when a gas in a standard state is allowed to pass through the copper fiber nonwoven fabric for wiring, in a state where a constant current is kept flowing to maintain a temperature of 80 C., perpendicularly with respect to a plane of the copper fiber nonwoven fabric for wiring for 1 minute at a flow rate of 20 L/min per 1 cm.sup.2 of cross sectional area, a temperature of the copper fiber nonwoven fabric for wiring decreases by at least 30 C.