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1. 发明公开

EP4332946A1 LASER-PRINTED ADHESIVE LAMINATE 审中-实审
公开(公告)号：EP4332946A1
公开(公告)日：2024-03-06
申请号：EP22795386.6
申请日：2022-03-23
申请人： TOYOBO CO., LTD.
发明人： ISHIMARU, Shintaro , HARUTA, Masayuki
IPC分类号： G09F3/02 , G09F3/03 , G09F3/10
摘要： To provide an adhesive laminate suitable for high-mix low-volume production without blurring of printing due to external rubbing or the like, or a security label using the adhesive laminate. An adhesive laminate comprising at least one laser-printed layer capable of being printed by laser irradiation, wherein the laser-printed layer includes a laser-printed portion and a non-printed portion, an absolute value of a difference between the color L* values of the printed portion and the non-printed portion is 1.0 or more and 10.0 or less, and a pressure-sensitive adhesive layer is provided on at least one surface of the adhesive laminate.

2. 发明公开

EP4317011A1 LASER-PRINTED PACKAGING BODY 审中-实审
公开(公告)号：EP4317011A1
公开(公告)日：2024-02-07
申请号：EP22775027.0
申请日：2022-03-04
申请人： TOYOBO CO., LTD.
发明人： ISHIMARU, Shintaro , HARUTA, Masayuki
IPC分类号： B65D65/40 , B32B27/00 , B32B27/20 , B65D33/00
摘要： The present invention is packaging comprising at least one laser printing layer printable by laser irradiation, in which the laser printing layer includes a laser-printed portion printed by laser and a non-printed portion, at least a part of the packaging is sealed by fusion cutting, and the packaging meets the following requirements of (1) to (3). In addition, the present invention provides packaging that has laser printing unaccompanied by peeling off and is formed by fusion-cut sealing with high productivity and economic efficiency. (1) the thickness of the laser printing layer is 5 pm or more and 200 pm or less; (2) the difference in color L* value between the laser-printed portion and the non-printed portion is 1.0 or more and 10 or less; and (3) the fusion-cut sealing strength is 5 N/15 mm or more and 40 N/15 mm or less.

3. 发明公开

EP4223522A1 HEAT-SHRINKABLE POLYESTER FILM 审中-实审
公开(公告)号：EP4223522A1
公开(公告)日：2023-08-09
申请号：EP21875348.1
申请日：2021-09-22
申请人： TOYOBO CO., LTD.
发明人： HARUTA, Masayuki , TABOTA, Norimi
IPC分类号： B32B27/36 , B65D25/20 , G09F3/04 , C08J5/18
摘要： [Problem] To provide a heat-shrinkable polyester film having a high heat shrinkage rate in the width direction as the main shrinkage direction, and surface protrusions controlled within a certain range, so that a film roll with transparency, printability, and good appearance can be obtained.
[Solution] A heat-shrinkable polyester film characterized by satisfying the following requirements (1) to (5): (1) a hot-water heat shrinkage rate in a width direction of the film is 40% or more and 80% or less by immersing the film in hot-water at 90°C for 10 seconds; (2) a hot-water heat shrinkage rate in a longitudinal direction of the film is -5% or more and 10% or less by immersing the film in hot-water at 90°C for 10 seconds; (3) a maximum peak height Sp on at least one surface of the film is 0.8 µm or more and 3.0 µm or less; (4) an arithmetical mean height Sa on at least one surface of the film is 0.03 µm or more and 0.2 µm or less, and; (5) a degassing time for removing air from between the two identical polyester films is 14 seconds or less, wherein the films are formed by stacking a front surface of the one film on a back surface of the other film.

4. 发明公开

EP4074489A1 BIAXIALLY ORIENTED POLYESTER FILM AND PRODUCTION METHOD THEREFOR 审中-实审
公开(公告)号：EP4074489A1
公开(公告)日：2022-10-19
申请号：EP20898153.0
申请日：2020-12-08
申请人： TOYOBO CO., LTD.
发明人： MANABE, Nobuyuki , HARUTA, Masayuki
IPC分类号： B29C55/12 , C08J11/06 , C08J5/18 , B29C59/00 , B29C48/04 , B29C48/285
摘要： [Problem] To provide: a biaxially oriented polyester film that exhibits excellent transparency, enables easy secondary processing such as coating and vapor deposition, provides excellent post-secondary-processing properties, and is environmentally friendly in that the film is made from polyester resins recycled from the market and society, including those from PET bottles; and a production method for such a film. [Solution] A biaxially oriented polyester film comprising a polyester resin composition containing particles and polyester resins recycled from the market and society, including those from PET bottles, the film having at least one surface that satisfies all requirements (1)-(3). (1) The number of fine projections having a height less than 3 nm per an area of 4×10-12m2 is 250-600. (2) The number of fine projections having a height not less than 3 nm per an area of 4×10-12m2 is 300-600. (3) The arithmetic average height Sa is 0.01-0.025 µm.

5. 发明公开

EP4053037A1 HEAT-SHRINKABLE POLYESTER-BASED FILM ROLL 审中-实审
公开(公告)号：EP4053037A1
公开(公告)日：2022-09-07
申请号：EP20881942.5
申请日：2020-10-22
申请人： TOYOBO CO., LTD.
发明人： INOUE, Masafumi , HARUTA, Masayuki
IPC分类号： B65D65/02 , B29C61/06 , C08J5/18 , B65H75/00
摘要： The present invention aims to provide a heat-shrinkable polyester film roll having decreased generation of wrinkles or longitudinal shrink mark. The present invention provides a film roll of a heat shrinkable polyester film, wherein a polyester of the polyester film contains recycled raw material from a PET bottle and an acid component of the polyester comprises isophthalic acid, and the film roll satisfies a specific average value of a shrinkage, specific isophthalic acid ratio, and specific thickness unevenness.

6. 发明公开

EP3928956A1 BIAXIALLY STRETCHED POLYESTER FILM ROLL 有权转让
公开(公告)号：EP3928956A1
公开(公告)日：2021-12-29
申请号：EP20758785.8
申请日：2020-02-05
申请人： TOYOBO CO., LTD.
发明人： HARUTA, Masayuki , TABOTA, Norimi
IPC分类号： B29C55/12 , B29K67/00 , B29L7/00 , C08L67/00 , C08J5/18 , C08K3/08
摘要： To provide a biaxially-oriented polyester film roll that is excellent in transparency and heat resistance and has less defects. A biaxially oriented polyester film roll of the present invention characterized by satisfying requirements (1) a winding length of the film roll, (2) a width of the film roll, (3) an average hardness of an outermost surface layer of the polyester film roll, (4) a variation in hardness, (5) a thickness of a polyester film of the polyester film roll, and (6) an irregularity of thickness in the maximum concave portion.

7. 发明公开

EP3831864A1 COPOLYESTER RAW MATERIAL FOR AMORPHOUS FILM, HEAT-SHRINKABLE POLYESTER-BASED FILM, HEAT-SHRINKABLE LABEL, AND PACKAGE 审中-实审转让
公开(公告)号：EP3831864A1
公开(公告)日：2021-06-09
申请号：EP19844071.1
申请日：2019-07-26
申请人： TOYOBO CO., LTD.
发明人： INOUE, Masafumi , HARUTA, Masayuki
IPC分类号： C08G63/183 , B29C61/06 , B65D65/04 , C08J5/18
摘要： [Problem]
The present invention aims to provide a heat-shrinkable polyester-based film having a high heat-shrinkage ratio in the main shrinkage direction, a low heat-shrinkage ratio in the non-shrinking direction and a small change in the shrinkage ratio before and after the aging treatment. Further, he present invention also aims to provide a raw material to produce the heat-shrinkable polyester-based film.
[Solution]
An amorphous copolymerized polyester raw material for a film, wherein the polyester raw material satisfies the following requirements (1) to (4):
(1) the copolymerized polyester raw material contains ethylene terephthalate as a main constituent component, and comprises neopentyl glycol by 15 mol% or more and 30 mol% or less when a total amount of glycol component in a total polyester resin component is taken as 100 mol%,
(2) the copolymerized polyester raw material comprises a constituent unit derived from diethylene glycol by 7 mol% or more and 15 mol% or less in the total amount of glycol component 100 mol% in the total polyester resin component,
(3) the copolymerized polyester raw material has an intrinsic viscosity of 0.60 dl/g or more and less than 0.70 dl/g, and
(4) the copolymerized polyester raw material has a glass transition temperature of 60°C or higher and 70°C or lower.

8. 发明公开

EP3605506A1 HEAT-SHRINKABLE LABEL, PACKAGING BODY, AND MANUFACTURING METHOD FOR HEAT-SHRINKABLE LABEL 有权转让
公开(公告)号：EP3605506A1
公开(公告)日：2020-02-05
申请号：EP18772003.2
申请日：2018-03-23
申请人： Toyobo Co., Ltd.
发明人： INOUE, Masafumi , HARUTA, Masayuki , OKU, Hisao
IPC分类号： G09F3/04 , B65D65/40 , C09J167/00
摘要： Provided are a heat-shrinkable label and a package each having solvent bonded-portion where solvent penetration-through is not caused even when the film is thin. Provided are particularly a heat-shrinkable label and a package each having solvent bonded-portion gaining a high peel strength stability even when the film is passed through a tubing step made high in speed. A heat-shrinkable label has a tubular shape, in which both end portions of a heat-shrinkable polyvinyl chloride-based film or a heat-shrinkable polystyrene-based film are bonded to each other with a solvent composition. The solvent composition contains at least one organic solvent selected from the group consisting of tetrahydrofuran (THF), methyl ethyl ketone (MEK) and ethyl acetate, and at least one resin selected from the group consisting of polyester, polypropylene and hydrogenated petroleum resin, and the end portion bonded has a peel strength of 2 N/15mm or more.

9. 发明公开

EP3358557A1 POLYESTER LABEL AND PACKAGING CONTAINER 审中-公开
公开(公告)号：EP3358557A1
公开(公告)日：2018-08-08
申请号：EP16851677.1
申请日：2016-09-28
申请人： Toyobo Co., Ltd.
发明人： HARUTA, Masayuki , TABOTA, Norimi
IPC分类号： G09F3/04 , B65D23/08 , C08G63/16 , C08J5/18
CPC分类号： B65D23/0821 , B29K2995/0049 , B32B27/36 , B65D23/08 , B65D75/002 , B65D2203/02 , C08G63/16 , C08G63/195 , C08J5/18 , C08J2467/02 , G09F3/04
摘要： The present invention provides a label which is excellent in crack resistance during transport even if the label is a small thickness.
The label of the present invention satisfies the following requirements (1) to (6):
(1) the label comprises a base film having a thickness of 8 µm or more and 30 µm or less:
(2) a polyester constituting the label has an intrinsic viscosity of 0.58 dl/g or more:
(3) the label has a tensile elongation at break of 5% or more in both a main shrinkage direction of the label and a direction orthogonal to the main shrinkage direction of the label:
(4) when an absorbancy at 1340 cm -1 and an absorbancy at 1410 cm -1 are measured for the base film constituting the label by a polarized ATR method, a difference between an absorbancy ratio (absorbancy at 1340 cm -1 / absorbancy at 1410 cm -1 ) in the main shrinkage direction of the label and an absorbancy ratio (absorbancy at 1340 cm -1 / absorbancy at 1410 cm -1 ) in the direction orthogonal to the main shrinkage direction of the label is 0.2 or more:
(5) when a reversible heat capacity curve is measured for the base film constituting the label with a temperature modulated differential scanning calorimeter, the base film constituting the label has a difference in specific heat capacity ΔCp between at a lower and a higher temperature than Tg of 0.2 J/(g•°C) or more: and
(6) the label has a difference between a maximum value and a minimum value of a length in a vertical direction of the label of 3 mm or less.

10. 发明授权

EP2224418B1 USE OF A LABEL 有权转让
公开(公告)号：EP2224418B1
公开(公告)日：2018-06-06
申请号：EP08860074.7
申请日：2008-12-11
申请人： Toyobo Co., Ltd.
发明人： HARUTA, Masayuki , HASHIMOTO, Masatoshi , IWASAKI, Masakazu , NOSE, Katsuhiko
IPC分类号： G09F3/04 , B29C61/06 , B65D23/08 , B65D25/20 , B65D65/02 , B65D65/04 , B65D71/08 , B65D77/20 , C08J5/18 , G09F3/10 , B29K67/00 , B29K105/02 , B29L7/00
CPC分类号： B29C61/003 , B29C63/42 , B29K2067/00 , B29L2031/744 , G09F3/04 , Y10T428/1328 , Y10T428/1331 , Y10T428/14
摘要： A heat-shrinkable polyester film is obtained which is extremely satisfactory in openability along a perforation, has exceedingly high productivity, and is less apt to split in the lengthwise direction in processing, e.g., printing. Provided is a label which is formed from the heat-shrinkable film and is satisfactorily tearable. The label is one formed from a tubular material which comprises as a base a heat-shrinkable film thermally shrinking mainly in the film width direction and which has been cut according to an object to be packaged, both edges in the film width direction having been bonded to each other. The tubular material has been thermally shrunk to constitute the label, with which at least part of the periphery of the object to be packaged is covered. The label has an angle tear strength in the direction perpendicular to the main shrinkage direction (i.e., in the film length direction) of 100-310 N/mm and a tensile break strength in the direction perpendicular to the main shrinkage direction (i.e., in the film length direction) of 50-300 MPa.

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