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    METHOD FOR PRODUCING ARTIFICIAL LEATHER EXCELLENT IN ELASTICITY
    81.
    发明专利
    METHOD FOR PRODUCING ARTIFICIAL LEATHER EXCELLENT IN ELASTICITY 审中-公开

    公开(公告)号：JP2003119676A

    公开(公告)日：2003-04-23

    申请号：JP2001313742

    申请日：2001-10-11

    Applicant: TORAY INDUSTRIES

    Inventor： IIJIMA HIROMICHI ,  IKEYAMA MASAMI ,  HANAOKA JUN

    IPC: D06N3/14

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing plushy artificial leather having, at the same time, elasticity of the leather and durability in plushiness of the leather surface. SOLUTION: This method for producing artificial leather excellent in elasticity is characterized by laminating webs (A) formed from a fiber having =15% boiling water shrinkage factor so as to clasp the web (B) by the webs (A), performing needle-punching to entangle each other, processing with shrinking treatment, adding an elastic polymer, coagulating in wet phase or dry phase, cutting into two parts in the thickness direction, raising a nap on the surface formed by the web (A), treating with 100-140 deg.C hot water in a jet dyeing machine and removing the entangled layer composed mainly of the web (B).

    LEATHER-LIKE SHEET AND METHOD FOR PRODUCING THE SAME
    84.
    发明专利
    LEATHER-LIKE SHEET AND METHOD FOR PRODUCING THE SAME 失效

    公开(公告)号：JP2002266254A

    公开(公告)日：2002-09-18

    申请号：JP2001064664

    申请日：2001-03-08

    Applicant: TORAY INDUSTRIES

    Inventor： IKEYAMA MASAMI ,  IIJIMA HIROMICHI

    IPC: D06N3/00 ,  C08K5/16 ,  C08L21/00 ,  C08L85/02 ,  D04H1/4382 ,  D06M15/423 ,  D06M15/673 ,  D04H1/42

    Abstract: PROBLEM TO BE SOLVED: To provide a leather-like sheet which does not generate an injurious gas, when burned, to which a flame-retardant performance and a washing- durable anti-bacterial property are imparted, and which has a soft hand. SOLUTION: This leather-like sheet in which a polymeric elastomer is imparted to the interlaced products of ultrafine fibers and/or ultrafine fiber bundles is characterized by containing phosphazene compounds represented by formula (I) (X1 to X3 are each either of amino and phenoxy; Y1 to Y3 are each either of amino and phenoxy) and/or formula (II) (X1 to X4 are each either of amino and phenoxyr Y1 to Y4 are each either of amino and phenoxy), a quaternary ammonium salt and/or a biguanido group-having compound, and an aminoplast resin.

    PILED ARTIFICIAL LEATHER WITH HIGH MECHANICAL STRENGTH
    85.
    发明专利
    PILED ARTIFICIAL LEATHER WITH HIGH MECHANICAL STRENGTH 失效

    公开(公告)号：JP2001271274A

    公开(公告)日：2001-10-02

    申请号：JP2000079794

    申请日：2000-03-22

    Applicant: TORAY INDUSTRIES

    Inventor： IIJIMA HIROMICHI ,  WATANABE KOJI

    IPC: D06N3/00 ,  D04H1/4382 ,  D04H1/498 ,  D04H1/42 ,  D04H1/46

    Abstract: PROBLEM TO BE SOLVED: To provide an artificial leather high in mechanical strength, also doubling as dimensional stability and wear resistance, without impairing both the smoothness and touch inherent in ultrafine fiber. SOLUTION: This piled artificial leather with high mechanical strength is characterized by that an interlaced layer (A) comprising ultrafine fiber =10 cN/dtex in tenacity are laminated with each other, piles of ultrafine fiber are present on the surface of the interlaced layer (A), the ultrafine fibers constituting the piles are penetrated in a substantially bundle-like fashion in the thickness direction of the interlaced layer (B), the ultrafine fiber bundles thus penetrated have such a fiber-interlaced structure that the non-laminate surface of the interlaced layer (B) is covered in a given direction with a plurality of continuous striped stitch-like looped interlaces, and a polymeric elastomer is present at least inside the interlaced layer (A).

    MAGNETIC RECORDING MEDIUM PROCESSING TAPE
    86.
    发明专利
    MAGNETIC RECORDING MEDIUM PROCESSING TAPE 失效

    公开(公告)号：JP2001067659A

    公开(公告)日：2001-03-16

    申请号：JP24280199

    申请日：1999-08-30

    Applicant: TORAY INDUSTRIES

    Inventor： IIJIMA HIROMICHI ,  WATANABE KOJI ,  MATSUNASE TAKEO

    IPC: B24D11/00 ,  G11B5/84

    Abstract: PROBLEM TO BE SOLVED: To provide a magnetic recording medium processing tape which is capable of applying highly accurate texturing on the surface of a substrate with good yield. SOLUTION: The magnetic medium processing tape is a sheet in which a high polymer elastic body is imparted to an entangled body consisting of extremely thin fibers of =0.3 g/cm3 and the R value, which is obtained with a formula, R value (%)=(R1-R3)/(R1-R2)×100 (where, R1: the quantity of reflected light at 0 deg., R2: the minimum quantity of reflected light within the rotation range of 0 to 180 deg., R3: the quantity of reflected light at 180 deg.) from an angle changing reflection curve measured with an automatic angle changing photometer by rotating a fluffing surface 0 to 180 deg., is controlled to be

    ARTIFICIAL LEATHER HAVING NAPPING
    87.
    发明专利
    ARTIFICIAL LEATHER HAVING NAPPING 失效

    公开(公告)号：JP2000303367A

    公开(公告)日：2000-10-31

    申请号：JP11483799

    申请日：1999-04-22

    Applicant: TORAY INDUSTRIES

    Inventor： IIJIMA HIROMICHI ,  TAGUCHI SETSUO

    IPC: D06N3/00

    Abstract: PROBLEM TO BE SOLVED: To obtain an artificial leather having napping, excellent in resilience, dimensional stability and abrasion resistance regardless of a raw material in which lightening, thinning and softening are attained. SOLUTION: This artificial leather having napping in the present invention is obtained by laminating an entangled layer B of a polyester fiber having 58%-85% crystal orientation degree obtained from wide angle X-ray diffractometry, 0.088-0.450 amorphous orientation degree by polarization fluorescence method, 50×10-3 to 100×10-3 birefringence and 1.350-1.385 specific gravity onto an entangled layer A comprising ultrafine fiber having

    PRODUCTION OF SHEET MATERIAL
    89.
    发明专利
    PRODUCTION OF SHEET MATERIAL 失效

    公开(公告)号：JP2000212872A

    公开(公告)日：2000-08-02

    申请号：JP1303499

    申请日：1999-01-21

    Applicant: TORAY INDUSTRIES

    Inventor： SAKAI MASAAKI ,  WATANABE KOJI ,  IIJIMA HIROMICHI

    IPC: D06C11/00 ,  B32B5/02 ,  D04H1/4382 ,  D04H1/498 ,  D06M11/00 ,  D06M11/38 ,  D06M13/402 ,  D06M15/564 ,  D06M23/00 ,  D04H1/42 ,  D04H1/46

    Abstract: PROBLEM TO BE SOLVED: To provide a production method for sheet materials that are excellent in dense napping properties, in addition, high tensile strength, high tear strength, excellent smoothness and flexibility with high durability of these characteristics. SOLUTION: This sheet material is produced by needle-punching a fiber assembly with a degree of filament arrangement (Pm) of >=0.70, defined as follows, in a density of >=400 lines/cm2 to form a three-dimensionally interlaced sheet, impregnating the resultant entangled sheet with a polymeric elastomer, coagulating the elastomer and densely napping the surface of the resulting fiber-entangled sheet. Pm=L2/L1 where L1 is an average length of the filament; L2 is the projective length of the filament in the axial direction of the fiber assembly.

    ARTIFICIAL LEATHER
    90.
    发明专利
    ARTIFICIAL LEATHER 失效

    公开(公告)号：JP2000080572A

    公开(公告)日：2000-03-21

    申请号：JP25229598

    申请日：1998-09-07

    Applicant: TORAY INDUSTRIES

    Inventor： IIJIMA HIROMICHI ,  WATANABE KOJI

    IPC: D06N3/00

    Abstract: PROBLEM TO BE SOLVED: To produce an artificial leather having increased sewing yield by solving the problems on poor insertion properties due to the gloss difference caused by teaseling direction. SOLUTION: This artificial leather is prepared by applying a polymeric elastomer to an ultrafine fiber-entangled web body and has an extremely fine fiber-teaseled face at least on one face. The teaseled face is measured its angle- changing reflection as it is rotated from 0 deg. to 180 deg. to draw the angle-changing reflection curve by means of an automatic angle-changing reflection photometer, thus has an R-value of

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