The prevent invention provides a lyocell heat-treated cord having improved fatigue resistance, which is particularly suitable for a tire cord, the lyocell heat-treated cord: dissolving NMMO hydrate in cellulose by using a solvent, adding an additive having a glycerol structure or an additive having a soybean oil structure, and then suitably controlling spinning of the solution, washing, oiling, and drying conditions, thereby obtaining an industrial lyocell filament; and using the same so as to perform twisting and heat treatment. In addition, according to a preferred embodiment of the present invention, provided is a pneumatic radial tire using, in a monolayer or bilayer structure, the lyocell heat-treated cord on a carcass layer or cap fly layer.
La présente invention concerne un câble traité thermiquement en lyocell présentant une résistance à la fatigue améliorée, qui est particulièrement approprié pour un câble de pneu, le câble à traitement thermique en lyocell étant produit par les étapes consistant à : dissoudre un hydrate de NMMO dans de la cellulose en utilisant un solvant, ajouter un additif ayant une structure de glycérol ou un additif ayant une structure d'huile de soja, puis contrôler de manière appropriée les conditions de centrifugation de la solution, de lavage, de lubrification et de séchage, ce qui permet d'obtenir un filament en lyocell industriel ; utiliser celui-ci de façon à réaliser une torsion et un traitement thermique. De plus, selon un mode de réalisation préféré, la présente invention concerne un pneu radial pneumatique qui utilise, dans une structure monocouche ou bicouche, le câble traité thermiquement en lyocell sur une couche de carcasse ou une couche de recouvrement.
본 발명은 NMMO 수화물을 용매를 사용하여 셀룰로오스를 용해시키고 글리세롤 구조의 첨가제 또는 소이빈 오일 구조의 첨가제를 첨가한 후, 상기 용액의 방사, 수세, 유제처리 및 건조 조건을 적절히 조절함으로써 산업용 라이오셀 필라멘트를 얻고 이를 이용하여 연사 및 열처리를 실시함으로써 특히 타이어코드용으로 적합한 내피로도가 향상된 라이오셀 열처리 코드를 제공하는 것에 관한 것이다. 또한 본 발명의 적절한 실시형태에 따르면 상기 라이오셀 열처리 코드를 카카스 층 또는 캡 플라이 층에 1층 또는 2층 구조로 사용한 래디얼 공기입 타이어가 제공된다.
LYOCELL HEAT-TREATED CORD HAVING IMPROVED FATIGUE RESISTANCE, COMPRISING ADDITIVE
CÂBLE TRAITÉ THERMIQUEMENT EN LYOCELL PRÉSENTANT UNE RÉSISTANCE À LA FATIGUE AMÉLIORÉE, COMPRENANT UN ADDITIF
첨가제를 포함하는 내피로도가 향상된 라이오셀 열처리 코드
2018-07-26
Patent
Electronic Resource
Korean
IPC: | D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS , Kräuseln oder Texturieren von Fasern, Fäden, Garnen oder Zwirnen / B60C VEHICLE TYRES , Fahrzeugreifen / D01F Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern , CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS |
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