An artificial leather includes a resin layer as the surface and a base fabric connected to the resin layer as the substrate. The base fabric comprises at least two monolayer structures arranged in an orderly manner as two laminates. Each monolayer structure is woven with some of the warp yarns and/or weft yarns in such layer or with some of the warp yarns and/or weft yarns in one or more other layers to form a number of connecting points, such that at least two monolayer structures arranged in an orderly manner as two laminates are connected with each other in the weaving process, forming a multi-layer integrated base fabric. The artificial leather incorporates a number of air vent holes distributed in the resin layer and the base fabric in the direction of thickness while retaining mechanical properties of tensile strength and tear resistance.

A treatment method includes: preparing a vibration applying section including a contact member that has a base and a plurality of protruding portions which are provided so as to protrude from the base and which come into contact with a fabric and including a vibration generation source that applies a vibration to the contact member; and a vibration applying step of, in a state in which the protruding portions are made to be in contact with the fabric, driving the vibration generation source such that the protruding portions vibrate and applying vibration to the fabric via the protruding portions.

A method of manufacturing leggings having a leg portion and a waistband portion, using a fabric is disclosed. The method includes brushing an outside surface of the fabric once to form a single-brushed surface. The method includes brushing an inside surface of the fabric multiple times to form a multiple-brushed surface. The method includes cutting the fabric into a plurality of pieces for the leg portion and a plurality of pieces for the waistband portion and sewing the pieces together, the waistband portion having a top edge and a bottom edge, the top edge of the waistband portion being narrower than the bottom edge of the waistband portion, the single-brushed surface of the fabric forming an inside legging surface configured to contact a wearer, and the multiple-brushed surface of the fabric forming an outside legging surface. The method includes sewing an elastic band to the top edge of the waistband.

Disclosed is a napped artificial leather napped including: a non-woven fabric that is an entangle body of ultrafine fibers; and an elastic polymer impregnated into the non-woven fabric, the napped artificial leather having, at least on one side thereof, a napped surface formed by napping the ultrafine fibers, wherein the ultrafine fibers contain 0.5 mass % or more of a pigment (A), the elastic polymer contains 0 to 0.01 mass % of a pigment (B), and the ultrafine fibers and the elastic polymer are undyed; the napped surface has a lightness L* value of 25 or less in a color coordinate space (L*a*b* color space); and a ratio of an area occupied by the elastic polymer, observed on the napped surface, to a total area of an area occupied by the ultrafine fibers and the area occupied by the elastic polymer is 0.5% or less.

The present invention relates to a heat-storing and retaining fleece using a polyester yarn containing composite metal oxide particles. The heat-storing and retaining fleece of the present invention exhibits an excellent far-infrared emission property, an excellent heat-storing and retaining property, excellent spinning processability, and excellent dyeability.

A sheet-shaped object which is thin and, despite this, has a surface that is dense and is soft to the touch and which has practicable strength and a process for producing the sheet-shaped object are disclosed. This sheet-shaped object comprises ultrafine fibers having an average single-fiber diameter of 0.1-7 μm and a polymeric elastomer comprising a polyurethane as a major component, wherein when a layer extending from one surface to a depth of 50% of the thickness is referred to as layer (A) and a layer extending from the other surface to a depth of 50% of the thickness is referred to as layer (B), then the ratio of the density of fibers (A′) in the layer (A) to the density of fibers (B′) in the layer (B) satisfies the following expression (a) and the ratio of the density of the polymeric elastomer comprising a polyurethane as a major component (A″) in the layer (A) to the density thereof (B″) in the layer (B) satisfies the following expression (b). The sheet-shaped object as a whole has a density of 0.2-0.6 g/cm.sup.3. 1>(A′)/(B′)≧0.5 (a) 1>(A″)/(B″)≧0.6 (b).

A sheet-shaped object which is thin and, despite this, has a surface that is dense and is soft to the touch and which has practicable strength and a process for producing the sheet-shaped object are disclosed. This sheet-shaped object comprises ultrafine fibers having an average single-fiber diameter of 0.1-7 μm and a polymeric elastomer comprising a polyurethane as a major component, wherein when a layer extending from one surface to a depth of 50% of the thickness is referred to as layer (A) and a layer extending from the other surface to a depth of 50% of the thickness is referred to as layer (B), then the ratio of the density of fibers (A′) in the layer (A) to the density of fibers (B′) in the layer (B) satisfies the following expression (a) and the ratio of the density of the polymeric elastomer comprising a polyurethane as a major component (A″) in the layer (A) to the density thereof (B″) in the layer (B) satisfies the following expression (b). The sheet-shaped object as a whole has a density of 0.2-0.6 g/cm.sup.3. 1>(A′)/(B′)≧0.5 (a) 1>(A″)/(B″)≧0.6 (b).

A method for producing environmentally friendly fabric and textile products without use of chemicals comprises a finishing process including the steps of: singeing, enzyme desizing; water washing, peaching, stentering, and sanforizing. The steps of the finishing process are purely physical and preferably uses only water, water vapor (steam), and enzymes, and not chemicals including chemical agents. As such, the finishing process is believed to be environmentally friendly.

A method for producing environmentally friendly fabric and textile products without use of chemicals comprises a finishing process including the steps of: singeing, enzyme desizing; water washing, peaching, stentering, and sanforizing. The steps of the finishing process are purely physical and preferably uses only water, water vapor (steam), and enzymes, and not chemicals including chemical agents. As such, the finishing process is believed to be environmentally friendly.

The invention refers to a process for the preparation of a microfibrous non-woven fabric based on polyester or polyamide microfibers immersed in a polyurethane matrix, and having a thickness equal to or less than 0.65 mm, a flat or slightly mottled appearance and a nap length of less than 350 μm. The non-woven fabric is used for the preparation of coverings for consumer goods, particularly for the preparation of covers and cases for electronic products.