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5. 发明专利

TWI319357B 感熱轉印記錄用雙軸配向白色聚丙烯薄膜及由其形成之感熱轉印記錄用收受片 BIAXIAL ORIENTED WHITE POLYPROPYLENE FILM FOR THERMAL TRANSFER RECORDING AND ACCEPTING SHEET FOR THERMAL TRANSFER RECORDING MADE OF THE SAME 有权
简体标题：感热转印记录用双轴配向白色聚丙烯薄膜及由其形成之感热转印记录用收受片 BIAXIAL ORIENTED WHITE POLYPROPYLENE FILM FOR THERMAL TRANSFER RECORDING AND ACCEPTING SHEET FOR THERMAL TRANSFER RECORDING MADE OF THE SAME
公开(公告)号：TWI319357B
公开(公告)日：2010-01-11
申请号：TW093140394
申请日：2004-12-24
申请人：東麗股份有限公司
发明人：田中茂 , 大倉正壽 , 增田順一 , 利根川浩一 , 森田玲子
IPC分类号： B41M , B32B
CPC分类号： C08J5/18 , B41M5/41 , B41M5/44 , B41M2205/32 , B41M2205/38 , C08J2323/12
摘要：提供一種做為感熱轉印用薄膜所需的低比重、高白色度和高緩衝率、且皺摺耐性優異，以及做為收受片之基材使用時之高感度和高生產性兩者兼顧的高品質之感熱轉印記錄用雙軸配向白色聚丙烯薄膜、以及使用它所形成之感熱轉印記錄用收受片。
(1)一種感熱轉印記錄用雙軸配向白色聚丙烯薄膜，其係由β晶比率為30%以上、且熔解溫度為140~172℃的聚丙烯樹脂形成之薄膜，其特徵在於：具有實質上無核之孔洞，空隙率為30~80%，薄膜之在長軸方向和寬度方向之2%的伸長量時的強度(F2值)和係在10~70 MPa之範圍，且表面光澤度係在10~145%之範圍。(第1形態)
(2)一種感熱轉印記錄用雙軸配向白色聚丙烯薄膜，其係由β晶比率為30%以上、熔解溫度為140~172℃的聚丙烯樹脂所形成，並具有實質上無核之孔洞，空隙率為30~80%，且在長軸方向和寬度方向之2%的伸長量時的強度(F2值)和係在10~70 MPa之範圍的芯層(A層)之至少一側單面上，積層一表面光澤度係在10~145%之範圍的皮層(B層)所構成。(第2形態)
(3)一種感熱轉印記錄用雙軸配向白色聚丙烯薄膜，其係在由具有實質上無核之孔洞的聚丙烯樹脂之芯層(A層)的至少一側單面上，積層一表面光澤度係在10~145%之範圍的皮層(B層)所構成之薄膜，其特徵在於：在長軸方向和寬度方向之2%的伸長量時的強度(F2值)和係在30~100 MPa之範圍，且具有β晶活性。(第3形態)
(4)一種感熱轉印記錄用雙軸配向白色聚丙烯薄膜，其係在由具有實質上無核之孔洞的聚丙烯樹脂之芯層(A層)的至少一側單面上，積層一半結晶化時間為60秒以下、且表面光澤度係在30~145%之範圍的皮層(B層)所構成之薄膜，其特徵在於：薄膜之比重為0.3~0.7，且具有β晶活性。(第4形態) To provide a biaxial oriented white polypropylene film for thermal transfer recording having properties which are necessary to be used as a thermal transfer film, such as lower specific gravity, high whiteness and cushion ratio, and excellent wrinkle-resistance, as well as having high sensitiveness and productivity which are both in high level while used as a substance of accepting sheet, and an accepting sheet for thermal transfer recording made of the same.
(1) A biaxial oriented white polypropylene film for thermal transfer recording which is a film made from a polypropylene resin having β crystal ratio of more than 30% and melting temperature of 140~172℃, and is characterized in having a void without a nucleolus substantially, a porosity of 30~80%, a strength (F2 value) a range of 10~70 MPa measured at that the elongation of film is 2% in longitudinal direction and latitudinal direction, and a surface gloss at a range of 10~145% (the first embodiment).
(2) A biaxial oriented white polypropylene film for thermal transfer recording which is a film made from a polypropylene resin having β crystal ratio of more than 30% and melting temperature of 140~172℃, and is characterized in that a skin layer (B layer) with a surface gloss at a range of 10~145% is laminated on at least one single surface of a core layer (A layer) having a void without a nucleolus substantially, and a porosity of 30~80%, a strength (F2 value) a range of 10~70 MPa measured at that the elongation of film is 2% in longitudinal direction and latitudinal direction (the second embodiment).
(3) A biaxial oriented white polypropylene film for thermal transfer recording which is a film made by laminating a skin layer (B layer) with a surface gloss at a range of 10~145% on at least one singe surface of a core layer (A layer) of a polypropylene resin having a void without a nucleolus substantially, and is characterized in having a strength (F2 value) a range of 30~100 MPa measured at that the elongation of film is 2% in longitudinal direction and latitudinal direction, and β crystal activity(the third embodiment).
(4) A biaxial oriented white polypropylene film for thermal transfer recording which is a film made by laminating a skin layer (B layer) having a half crystallized time of less than 60 seconds and a surface gloss at a range of 30~145%, on at least one singe surface of a core layer (A layer) of a polypropylene resin having a void without a nucleolus substantially, and is characterized in that the film has a specific gravity of 0.3~0.7 and β crystal activity (the forth embodiment).
简体摘要：提供一种做为感热转印用薄膜所需的低比重、高白色度和高缓冲率、且皱折耐性优异，以及做为收受片之基材使用时之高感度和高生产性两者兼顾的高品质之感热转印记录用双轴配向白色聚丙烯薄膜、以及使用它所形成之感热转印记录用收受片。 (1)一种感热转印记录用双轴配向白色聚丙烯薄膜，其系由β晶比率为30%以上、且熔解温度为140~172℃的聚丙烯树脂形成之薄膜，其特征在于：具有实质上无核之孔洞，空隙率为30~80%，薄膜之在长轴方向和宽度方向之2%的伸长量时的强度(F2值)和系在10~70 MPa之范围，且表面光泽度系在10~145%之范围。(第1形态) (2)一种感热转印记录用双轴配向白色聚丙烯薄膜，其系由β晶比率为30%以上、熔解温度为140~172℃的聚丙烯树脂所形成，并具有实质上无核之孔洞，空隙率为30~80%，且在长轴方向和宽度方向之2%的伸长量时的强度(F2值)和系在10~70 MPa之范围的芯层(A层)之至少一侧单面上，积层一表面光泽度系在10~145%之范围的皮层(B层)所构成。(第2形态) (3)一种感热转印记录用双轴配向白色聚丙烯薄膜，其系在由具有实质上无核之孔洞的聚丙烯树脂之芯层(A层)的至少一侧单面上，积层一表面光泽度系在10~145%之范围的皮层(B层)所构成之薄膜，其特征在于：在长轴方向和宽度方向之2%的伸长量时的强度(F2值)和系在30~100 MPa之范围，且具有β晶活性。(第3形态) (4)一种感热转印记录用双轴配向白色聚丙烯薄膜，其系在由具有实质上无核之孔洞的聚丙烯树脂之芯层(A层)的至少一侧单面上，积层一半结晶化时间为60秒以下、且表面光泽度系在30~145%之范围的皮层(B层)所构成之薄膜，其特征在于：薄膜之比重为0.3~0.7，且具有β晶活性。(第4形态) To provide a biaxial oriented white polypropylene film for thermal transfer recording having properties which are necessary to be used as a thermal transfer film, such as lower specific gravity, high whiteness and cushion ratio, and excellent wrinkle-resistance, as well as having high sensitiveness and productivity which are both in high level while used as a substance of accepting sheet, and an accepting sheet for thermal transfer recording made of the same. (1) A biaxial oriented white polypropylene film for thermal transfer recording which is a film made from a polypropylene resin having β crystal ratio of more than 30% and melting temperature of 140~172℃, and is characterized in having a void without a nucleolus substantially, a porosity of 30~80%, a strength (F2 value) a range of 10~70 MPa measured at that the elongation of film is 2% in longitudinal direction and latitudinal direction, and a surface gloss at a range of 10~145% (the first embodiment). (2) A biaxial oriented white polypropylene film for thermal transfer recording which is a film made from a polypropylene resin having β crystal ratio of more than 30% and melting temperature of 140~172℃, and is characterized in that a skin layer (B layer) with a surface gloss at a range of 10~145% is laminated on at least one single surface of a core layer (A layer) having a void without a nucleolus substantially, and a porosity of 30~80%, a strength (F2 value) a range of 10~70 MPa measured at that the elongation of film is 2% in longitudinal direction and latitudinal direction (the second embodiment). (3) A biaxial oriented white polypropylene film for thermal transfer recording which is a film made by laminating a skin layer (B layer) with a surface gloss at a range of 10~145% on at least one singe surface of a core layer (A layer) of a polypropylene resin having a void without a nucleolus substantially, and is characterized in having a strength (F2 value) a range of 30~100 MPa measured at that the elongation of film is 2% in longitudinal direction and latitudinal direction, and β crystal activity(the third embodiment). (4) A biaxial oriented white polypropylene film for thermal transfer recording which is a film made by laminating a skin layer (B layer) having a half crystallized time of less than 60 seconds and a surface gloss at a range of 30~145%, on at least one singe surface of a core layer (A layer) of a polypropylene resin having a void without a nucleolus substantially, and is characterized in that the film has a specific gravity of 0.3~0.7 and β crystal activity (the forth embodiment).

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