Patents Assigned to Mitsubishi Rayon Textile Co., Ltd.
  • Patent number: 8722552
    Abstract: This woven/knit fabric contains composite yarn comprising a multifilament yarn A2 and a multifilament yarn B2, which satisfies the following conditions (1) to (3): (1) the ratio (WA2/DA2) of the yarn length of the multifilament fiber A2 during absorption of moisture and humidity (WA2) to the yarn length of the multifilament yarn A2 under conditions of 20° C. and 65% humidity (DA2) is 1.02 to 1.30; (2) the ratio (WA2/DB2) of the yarn length of the multifilament yarn A2 during absorption of moisture and humidity (WA2) to the yarn length of the multifilament yarn B2 under conditions of 20° C. and 65% humidity (DB2) is 0.9 to 1.1; and (3) the drying shrinkage stress (DS value) of the multifilament yarn A2 is 0.08 cN/dtex or more.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: May 13, 2014
    Assignees: Mitsubishi Rayon Co., Ltd., Mitsubishi Rayon Textile Co., Ltd.
    Inventor: Shoji Kanatani
  • Patent number: 7820571
    Abstract: A multi-layer woven or knitted fabric exhibiting reversibly changeable air permeability, which contains reversibly crimping cellulose acetate fibers exhibiting a percentage of crimp of less than 10% at a humidity of 95% or above and a percentage of crimp of 20% or above at a humidity of 45% or below and which has a basis weight of 100 to 350 g/m2. When water content of the fabric is enhanced by the absorption of water or moisture, the air permeability of the fabric increases to inhibit in-clothes stuffiness or stickiness due to sweat and in-clothes temperature rise, while when the fabric has discharged the water into the outside environment, the air permeability of the fabric decreases to the original one to prevent the body temperature from lowering excessively because of the heat of vaporization and thus keep the in-clothes environment comfortable.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: October 26, 2010
    Assignees: Mitsubishi Rayon Co., Ltd., Mitsubishi Rayon Textile Co., Ltd.
    Inventors: Hisashi Kuroda, Mitsuo Tanaka, Mitsuaki Shiotsuki, Teruhiro Tsuchida
  • Publication number: 20090029616
    Abstract: This woven/knit fabric contains composite yarn comprising a multifilament yarn A2 and a multifilament yarn B2, which satisfies the following conditions (1) to (3): (1) the ratio (WA2/DA2) of the yarn length of the multifilament fiber A2 during absorption of moisture and humidity (WA2) to the yarn length of the multifilament yarn A2 under conditions of 20° C. and 65% humidity (DA2) is 1.02 to 1.30; (2) the ratio (WA2/DB2) of the yarn length of the multifilament yarn A2 during absorption of moisture and humidity (WA2) to the yarn length of the multifilament yarn B2 under conditions of 20° C. and 65% humidity (DB2) is 0.9 to 1.1; and (3) the drying shrinkage stress (DS value) of the multifilament yarn A2 is 0.08 cN/dtex or more.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 29, 2009
    Applicants: Mitsubishi Rayon co., Ltd., Mitsubishi Rayon Textile Co., Ltd.
    Inventor: Shoji Kanatani
  • Publication number: 20080268217
    Abstract: A cloth having partially different cloth-stretchability comprises a portion having relatively high cloth-stretchability and a portion having relatively low cloth-stretchability, in which the portion having a relatively high cloth-stretchability is composed of a fiber having fiber-stretchability and a fiber having non-fiber-stretchability and has a higher extension percentage than that of the portion having a relatively low cloth-stretchability.
    Type: Application
    Filed: June 26, 2008
    Publication date: October 30, 2008
    Applicants: Mitsubishi Rayon Co., Ltd., Mitsubishi Rayon Textile Co., Ltd., Violetta Co., Ltd., SUZUTORA CO., Ltd.
    Inventors: Shouji Kanatani, Atsushi Itsumi, Kazuo Harada, Kenichiro Takasu, Kenji Uehara
  • Publication number: 20080268735
    Abstract: A multi-layer woven or knitted fabric exhibiting reversibly changeable air permeability, which contains reversibly crimping cellulose acetate fibers exhibiting a percentage of crimp of less than 10% at a humidity of 95% or above and a percentage of crimp of 20% or above at a humidity of 45% or below and which has a basis weight of 100 to 350 g/m2. When water content of the fabric is enhanced by the absorption of water or moisture, the air permeability of the fabric increases to inhibit in-clothes stuffiness or stickiness due to sweat and in-clothes temperature rise, while when the fabric has discharged the water into the outside environment, the air permeability of the fabric decreases to the original one to prevent the body temperature from lowering excessively because of the heat of vaporization and thus keep the in-clothes environment comfortable.
    Type: Application
    Filed: May 18, 2005
    Publication date: October 30, 2008
    Applicants: Mitsubishi Rayon Co., Ltd., Mitsubishi Rayon Textile Co., Ltd.
    Inventors: Hisashi Kuroda, Mitsuo Tanaka, Mitsuaki Shiotsuki, Teruhiro Tsuchida