D04H3/04

CD Extensible Nonwoven Composite
20170306536 · 2017-10-26 ·

A nonwoven composite that has a dimension in a machine direction and a cross-machine direction is provided. The composite comprises a nonwoven facing positioned adjacent to an elastic film. The nonwoven facing contains a spunbond web that is formed by necking a base spunbond web. The base spunbond web includes a plurality of fibers generally oriented in the machine direction and exhibiting a machine direction tensile strength and cross-machine direction tensile strength. The ratio of the machine direction tensile strength to the cross-machine direction tensile strength is about 4:1 or more.

Method and device for producing non-round wound tubes from plastic profiles

A method and a device for repairing portions of channels, including non-round channels, is provided by a wound tube wound from a profile strip by a winding machine, the abutting edges of which strip are formed into tight joints, locked inside the wound tube which can be introduced into the portion of the channel to be repaired. A plastic profile strip is drawn from a storage spool and fed to a winding machine arranged in front of one of the openings of the channel to be repaired, the winding machine having a guide rail adapted to the cross-portion of the channel, and adjacent edge regions fed onto this rotating winding former locked in an overlapping manner to form a wound pipe and the pipe is pushed or pulled into the channel portion.

INDUSTRIAL WOVEN FABRIC
20220042215 · 2022-02-10 ·

A method for producing a non-woven material, the method comprising: using a spun non-woven or melt spun method; using an arrangement including a conveyor belt; and forming a web of the non-woven material on a surface of the conveyor belt while being moved, wherein the conveyor belt includes a product side that is in contact with the non-woven material, and a machine side that is in contact with conveying devices of the arrangement to produce the non-woven material, wherein the conveyor belt includes longitudinal threads that extend in a running direction of the web of the non-woven material and transversal threads perpendicular to the longitudinal threads, wherein at least a portion of the longitudinal threads of a surface that is oriented towards the product side of the conveyor belt is made from a polymeric material which includes at least a portion of a thermoplastic elastomeric material.

Method for inserting out-of-plane reinforcement threads and method for producing fiber-containing material

Provided are: a fiber-containing material which has improved strength in an out-of-plane direction without a decrease in strength in an in-plane direction; a method for inserting out-of-plane reinforcement threads; and a method for producing the fiber-containing material. The fiber-containing material contains a base material and out-of-plane reinforcement threads. The base material contains reinforcement fibers extending in a direction along a plane. The out-of-plane reinforcement threads are formed in the base material so as to extend in a direction intersecting the direction along the plane.

Method for inserting out-of-plane reinforcement threads and method for producing fiber-containing material

Provided are: a fiber-containing material which has improved strength in an out-of-plane direction without a decrease in strength in an in-plane direction; a method for inserting out-of-plane reinforcement threads; and a method for producing the fiber-containing material. The fiber-containing material contains a base material and out-of-plane reinforcement threads. The base material contains reinforcement fibers extending in a direction along a plane. The out-of-plane reinforcement threads are formed in the base material so as to extend in a direction intersecting the direction along the plane.

FIBER MOLDED ARTICLE HAVING CUSHIONING PROPERTY, AND PRODUCT OBTAINED USING SAME

Provided is a fiber molded body which has excellent durability against repeated compression and also has excellent flexibility and a cushioning property. The fiber molded body forms, on a surface of the fiber molded body, the ridges having a compressed and flattened shape in the thickness direction of the fiber molded body; or the fiber molded body forms a continuous curved surface with the fiber layer which forms the ridges and extends from both sides of the ridges in the thickness direction of the fiber molded body, and portions of the fiber layer of mutually adjacent ridges which form ridges and extend in the thickness direction of the fiber molded body come into close contact with each other in the thickness direction of the fiber molded body.

Carbon fiber precursor acrylic fiber bundle, method for thermally oxidizing part thereof, thermal oxidation oven, and process for producing carbon fiber bundle

A carbon-fiber-precursor acrylic fiber bundle which can smoothly pass through a flame-resistance impartation step and a carbonization step. The carbon-fiber-precursor acrylic fiber bundle has a high-density part as a portion thereof, wherein the high-density part satisfies the following requirements (A) and (B). Requirement A: The high-density part has a maximum fiber density ρ.sub.max of 1.33 g/cm.sup.3 or higher. Requirement B: The portion extending between an intermediate-density point and a maximum-density-region arrival point has an increase in fiber density of 1.3×10.sup.−2 g/cm.sup.3 or less per 10 mm of the fiber bundle length.

Carbon fiber precursor acrylic fiber bundle, method for thermally oxidizing part thereof, thermal oxidation oven, and process for producing carbon fiber bundle

A carbon-fiber-precursor acrylic fiber bundle which can smoothly pass through a flame-resistance impartation step and a carbonization step. The carbon-fiber-precursor acrylic fiber bundle has a high-density part as a portion thereof, wherein the high-density part satisfies the following requirements (A) and (B). Requirement A: The high-density part has a maximum fiber density ρ.sub.max of 1.33 g/cm.sup.3 or higher. Requirement B: The portion extending between an intermediate-density point and a maximum-density-region arrival point has an increase in fiber density of 1.3×10.sup.−2 g/cm.sup.3 or less per 10 mm of the fiber bundle length.

Thermoplastic Composite In-Situ Melt Processing Method for Composite Overwrapped Tools
20170232687 · 2017-08-17 ·

An in-situ melt processing method for forming a fiber thermoplastic resin composite overwrapped workpiece, such as a composite overwrapped pressure vessel. Carbon fiber, or other types of fiber, are combined with a thermoplastic resin system. The selected fiber tow and the resin are prepared for impregnation of the two by the resin. The resin is melted and the carbon fiber is impregnated with the melted resin under pressure at the filament winding machine delivery head, under pressure and the molten composite is maintained and is applied to the heated surface of a workpiece. The surface of the workpiece is heated to the melting point of the thermoplastic resin so that the molten composite more efficiently adheres to the heated surface of the workpiece and so that the layers of composite remain molten resulting in better adherence of the layers to one another.

Fibre reinforced composites

A molding material comprising a fibrous reinforcement layer and a curable resin matrix. The fibrous reinforcement layer comprises a non-woven fabric comprising a single layer of unidirectional tows arranged at an angle greater than 0° in relation to the lengthwise direction of the fabric and a support structure for maintaining the arrangement of the tows.