METHOD FOR PRODUCING NONWOVEN FABRIC AND METHOD FOR PRODUCING COMPOSITE MATERIAL

• Main Authors: KAGEYAMA YASUSHI, MIWA YOSUKE, SAIKI YASUO, FUJIE HIDEAKI, NODA IPPEI, OSHIMA KEIICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 16.10.2014
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BRAIDING; CHEMISTRY; COMPOSITIONS BASED THEREON; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; GENERAL PROCESSES OF COMPOUNDING; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; METALLURGY; NON-WOVEN FABRICS; ORGANIC MACROMOLECULAR COMPOUNDS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRIMMINGS; WADDING; WORKING-UP

PROBLEM TO BE SOLVED: To provide a method for producing a nonwoven fabric capable of improving composite physical properties of a composite material.SOLUTION: The method for producing a nonwoven fabric is a method for producing a nonwoven fabric formed from non-crimped fibers and crimped fibers and includes: a blending process for blending non-crimped fibers and crimped fibers at a prescribed ratio; a web formation process for forming a nonwoven fabric having a web through the blending process; a sizing agent treatment process for attaching a sizing agent onto the nonwoven fabric in which the web is formed; an attached amount control process for controlling an attached amount of the sizing agent in the nonwoven fabric to which the sizing agent is attached; and a drying process for continuously drying the nonwoven fabric in which the attached amount of the sizing agent is controlled. 【課題】複合材料のコンポジット物性を向上させることが可能な不織布の製造方法を提供する。【解決手段】本発明の不織布の製造方法は、非捲縮繊維と、捲縮繊維とから形成される不織布の製造方法であって、非捲縮繊維と、捲縮繊維とを所定比で混合する混合工程と、混合工程を経て、ウェブを有する不織布を形成するウェブ形成工程と、ウェブが形成された不織布にサイジング剤を付着させるサイジング剤処理工程と、サイジング剤が付着した不織布において、サイジング剤の付着量を制御する付着量制御工程と、サイジング剤の付着量が制御された不織布を連続的に乾燥する乾燥工程と、を具備する。【選択図】 図１