METHOD FOR MELT SPINNING AND WINDING CELLULOSE FATTY ACID MIXED ESTER FIBER YARN, AND APPARATUS FOR MELT SPINNING AND WINDING
PROBLEM TO BE SOLVED: To provide a method and apparatus for melt spinning cellulose fatty acid mixed ester fibers by which a fiber yarn extruded from a spinneret is uniformly and stably cooled, and strength and elongation can further be improved when the cellulose fatty acid mixed ester fibers are m...
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| creator | MIYAZAKI TAKUO MORIOKA KANAME |
| description | PROBLEM TO BE SOLVED: To provide a method and apparatus for melt spinning cellulose fatty acid mixed ester fibers by which a fiber yarn extruded from a spinneret is uniformly and stably cooled, and strength and elongation can further be improved when the cellulose fatty acid mixed ester fibers are melt spun, wound and produced. SOLUTION: The cellulose fatty acid mixed ester fiber yarn extruded from the spinneret, and comprising a cellulose fatty acid mixed ester as a principal component is cooled, solidified, and wound. In the process, a cooling air is blown off from the annular direction toward the yarn, and blown from a cooling air blowoff part having a blowoff length Lq of the cooling air on the fiber yarn under conditions satisfying the following inequalities: Tm+10≤Tt≤Tm+60 [wherein, Tt is the cooling air temperature (°C) at the upper end of the cooling air blowoff part; Tm is the melting point (°C) of the cellulose fatty acid mixed ester; Td≤40 äwherein, Td is the cooling air temperature (°C) at the lower end of the cooling air blowoff part}; and 100≤Lq≤500 äwherein, Lq is the blowoff length (mm) of the cooling air blowoff part}] to cool and solidify the fiber yarn. COPYRIGHT: (C)2010,JPO&INPIT |
| format | Patent |
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SOLUTION: The cellulose fatty acid mixed ester fiber yarn extruded from the spinneret, and comprising a cellulose fatty acid mixed ester as a principal component is cooled, solidified, and wound. In the process, a cooling air is blown off from the annular direction toward the yarn, and blown from a cooling air blowoff part having a blowoff length Lq of the cooling air on the fiber yarn under conditions satisfying the following inequalities: Tm+10≤Tt≤Tm+60 [wherein, Tt is the cooling air temperature (°C) at the upper end of the cooling air blowoff part; Tm is the melting point (°C) of the cellulose fatty acid mixed ester; Td≤40 äwherein, Td is the cooling air temperature (°C) at the lower end of the cooling air blowoff part}; and 100≤Lq≤500 äwherein, Lq is the blowoff length (mm) of the cooling air blowoff part}] to cool and solidify the fiber yarn. 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SOLUTION: The cellulose fatty acid mixed ester fiber yarn extruded from the spinneret, and comprising a cellulose fatty acid mixed ester as a principal component is cooled, solidified, and wound. In the process, a cooling air is blown off from the annular direction toward the yarn, and blown from a cooling air blowoff part having a blowoff length Lq of the cooling air on the fiber yarn under conditions satisfying the following inequalities: Tm+10≤Tt≤Tm+60 [wherein, Tt is the cooling air temperature (°C) at the upper end of the cooling air blowoff part; Tm is the melting point (°C) of the cellulose fatty acid mixed ester; Td≤40 äwherein, Td is the cooling air temperature (°C) at the lower end of the cooling air blowoff part}; and 100≤Lq≤500 äwherein, Lq is the blowoff length (mm) of the cooling air blowoff part}] to cool and solidify the fiber yarn. 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SOLUTION: The cellulose fatty acid mixed ester fiber yarn extruded from the spinneret, and comprising a cellulose fatty acid mixed ester as a principal component is cooled, solidified, and wound. In the process, a cooling air is blown off from the annular direction toward the yarn, and blown from a cooling air blowoff part having a blowoff length Lq of the cooling air on the fiber yarn under conditions satisfying the following inequalities: Tm+10≤Tt≤Tm+60 [wherein, Tt is the cooling air temperature (°C) at the upper end of the cooling air blowoff part; Tm is the melting point (°C) of the cellulose fatty acid mixed ester; Td≤40 äwherein, Td is the cooling air temperature (°C) at the lower end of the cooling air blowoff part}; and 100≤Lq≤500 äwherein, Lq is the blowoff length (mm) of the cooling air blowoff part}] to cool and solidify the fiber yarn. COPYRIGHT: (C)2010,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING TEXTILES |
| title | METHOD FOR MELT SPINNING AND WINDING CELLULOSE FATTY ACID MIXED ESTER FIBER YARN, AND APPARATUS FOR MELT SPINNING AND WINDING |
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