The present invention discloses an antimicrobial nonwoven cloth, whose raw materials comprising the following components in weight ratio: 75100 parts of polypropylene, 1025 parts of sodium p-styrenesulfonate, 1020 parts of silane coupling agent, 0.151 part of polyhexamethylene biguanidine hydrochloride (PHMB), 0.050.4 part of zinc salt, 15 parts of bamboo charcoal fiber, and 0.010.1 part of nanometer fumed silica. Further, a method of preparing the antimicrobial nonwoven cloth and a mask with antimicrobial nonwoven cloth are disclosed, to prevent bacteria from spreading through the air and saliva.

A nonwoven fabric for curtain in an embodiment of the present invention is formed from fibers having a thermoplastic resin as a main component, said nonwoven fabric for curtain being characterized in that: in the surface of the nonwoven fabric, the fibers are fused together at points where the fibers intersect, and the fibers are mutually isolated at locations other than the intersecting points; and furthermore, the KES surface roughness SMD of at least one side of the sheet is 1.2 m or less, and the longitudinal tearing strength per fabric weight is 0.50 or more.

The present invention is directed to a method for manufacturing a drylaid mat suitable for thermoforming. The present invention is directed to a dry forming process, wherein cellulosic or lignocellulosic fibers have been impregnated, but not cross linked, with a cross linking agent prior to forming in a dry forming method. The invention is also directed to dry-laid mats manufactured according to the method as well as to thermoformed products manufactured from such dry-laid mats.

The present invention is directed to a method for manufacturing a drylaid mat suitable for thermoforming. The present invention is directed to a dry forming process, wherein cellulosic or lignocellulosic fibers have been impregnated, but not cross linked, with a cross linking agent prior to forming in a dry forming method. The invention is also directed to dry-laid mats manufactured according to the method as well as to thermoformed products manufactured from such dry-laid mats.

A nonwoven fabric has a volume-giving material, in particular fiber balls, down and/or fine feathers, and has a maximum tensile strength, measured according to DIN EN 29 073 at a mass per unit area of 50 g/m.sup.2 in at least one direction, of at least 0.3 N/5 cm, in particular of 0.3 N/5 cm to 100 N/5 cm.

A rigid nylon porous material sheet is produced by the adhesive bonding of kinked nylon fibers having lengths of 1 to 5 inches. These fibers are cut from melt spun nylon or harvested from clean carpet fibers by shearing. The adhesive used is glycol, which attacks nylon at 180 C. forming a gel on the surface of the kinked fibers, but does not attack the nylon fibers when the kinked fiber assembly is cooled to 150 C. to precipitate ultrafine nylon within the gel. The fiber assembly is heated to 160 C. to bond the nylon fibers. It is then washed in hot water to remove unused glycol. The other adhesive is polyurethane, which is applied to the kinked fibers using coupling agents of aqueous resorcinol and vinyl pyrrolidone.

A method for producing a volume nonwoven fabric includes the steps of: (a) providing a nonwoven fabric raw material, containing fiber balls and binder fibers; (b) providing an air-laying device, which has at least two spiked rollers between which a gap is formed; (c) processing the nonwoven fabric raw material in the device in an air-laying method, the nonwoven fabric raw material passing through the gap between the spiked rollers, fibers or fiber bundles being pulled from the fiber balls by the spikes; (d) laying on a laying apparatus; and (e) thermally bonding so as to obtain the volume nonwoven fabric.

A method for producing a volume nonwoven fabric includes the steps of: (a) providing a nonwoven fabric raw material, containing fiber balls and binder fibers; (b) providing an air-laying device, which has at least two spiked rollers between which a gap is formed; (c) processing the nonwoven fabric raw material in the device in an air-laying method, the nonwoven fabric raw material passing through the gap between the spiked rollers, fibers or fiber bundles being pulled from the fiber balls by the spikes; (d) laying on a laying apparatus; and (e) thermally bonding so as to obtain the volume nonwoven fabric.

The present invention pertains to the art of packing materials. The present invention provides a thermally-insulating and compostable packing product made of a compostable thin-film material forming an enclosed envelope filled with compressed corn-starch. The packing product of the present invention may be folded and positioned within a container to physically and thermally insulate or isolate an item for shipping within the container.

A filter medium is provided. A filter medium according to an embodiment of the present invention comprises: a fiber web layer of a three-dimensional network structure including nanofiber; and a hydrophilic coating layer which covers at least a part of the outer surface of the nanofiber. According to this, a flow rate can be remarkably increased due to the improved hydrophilicity of the filter medium. Also, as the improved hydrophilicity is maintained for a long period of time, the lifespan can be remarkably prolonged. Furthermore, since the modification of a porous structure of the filter medium is minimized during the process of hydrophilization so that the initially designed physical properties of the filter medium can be exhibited in its entirety, the filter medium having chemical resistance, excellent water permeability and durability can be variously applied in the water treatment field.