Toppan Printing Co., Ltd.

Toppan Inc.

Miki Fukugami

Takayuki Yanagisawa

Toshiya Ishii

Takeshi Nishikawa

Ryo Shoda

Junichi Kaminaga

Kaoru Furuta

Tomohiko Yamazaki

Sayaka Hoshi

Kengo Okamura

Ayumi Tanaka

Ryukichi Matsuo

Tomokazu Murase

Yoshiki Koshiyama

Kei Tsuruzoe

Kenji Matsumasa

Tomoko Ooki

Mikinori Yamada

Seiya Suzuki

Noritada Nakanishi

Ryo Takei

A gas barrier laminate including: a substrate layer which contains a polyolefin resin; a barrier layer; and an overcoat layer which contains a polyvinyl alcohol resin, the overcoat layer having a surface which has a surface hardness of 1.5 GPa or less, as measured by a nanoindentation method.

Gas barrier laminate and packaging material

A gas barrier film including: a substrate layer containing polypropylene; a resin layer containing a copolymer of propylene and another monomer; a vapor deposition layer of an inorganic oxide; and a gas barrier layer, laminated in this order, wherein the vapor deposition layer has a thickness of 5 nm to 300 nm, the resin layer has a thickness of 0.3 μm or more, and a surface of the resin layer facing the vapor deposition layer has at least one softening temperature in a range of 100° C. to 170° C. when measured by local thermal analysis (LTA).

Gas barrier film

The present disclosure relates to a gas barrier layered body including: a substrate layer containing a polyolefin-based resin; a first polyvinyl alcohol-based resin layer; a Si or Al-containing thin film layer; and a second polyvinyl alcohol-based resin layer, in the stated order, in which a logarithmic decrement at 100° C. of the first polyvinyl alcohol-based resin layer as measured by a rigid-body pendulum type physical property testing instrument is 0.20 or less and a logarithmic decrement at 125° C. is 0.30 or less, and an indentation hardness of the second polyvinyl alcohol-based resin layer as determined by a nanoindenter is 0.5 to 1.0 GPa.

Gas barrier layered body, and packaging material and tube container using same

A packaging body constituted by a sheet that includes a gas barrier laminate and a sealant; and contents that are accommodated in the packaging body and that contain a sulfur-containing amino acid. The gas barrier laminate comprises: a resin substrate; a first layer containing an inorganic oxide; a second layer containing a carboxylic acid polymer; and a third layer containing a polyvalent metal compound and a resin. The resin substrate, the first layer, the second layer, and the third layer are layered in this order from the outside to the inside of the packaging body. The thickness of the third layer is 0.1 &#x3bc;m or more. The sulfur content of the second layer is 1.0 atm % or less.

Package, gas barrier laminate, and packaging body

A gas barrier laminate including a resin substrate, a first coating layer containing a carboxylic acid polymer; and a second coating layer containing a polyvalent metal compound and a resin, laminated in this order; a ratio of a thickness of the second coating layer to the first coating layer in the range of 1.0 or more and 4.0 or less; and the second coating layer satisfies at least one of the following: (condition 1) a haze of the second coating layer is 8% or less; (condition 2) a surface roughness Ra of the second coating layer is &#xbd; or less of the thickness of the second coating layer; and (condition 3) the number of concave portions having a diameter of 1.5 &#x3bc;m or more per unit area on a surface of the second coating layer opposite to the first coating layer is 2/0.01 mmor less.

Gas barrier laminate and packaging material including the same

A method for producing a laminate, the method comprising at least a pretreatment step of pretreating a surface of a substrate made of a plastic film by reactive ion etching so that the maximum displacement of the substrate surface measured by local thermal analysis is 300 nm or more, and a lamination step of laminating a thermoplastic resin layer made of a material different from that of the substrate on the pretreated surface of the substrate; wherein the plastic film is a polyethylene terephthalate film.

Laminate and method for producing laminate

A transparent conductive gas barrier laminate according to the present disclosure includes a transparent gas barrier film and a transparent conductive layer in this order from outside toward inside. In the laminate, the transparent gas barrier film has a b* value of more than 0 in a L*a*b* color system, and the transparent conductive layer contains a conductive polymer and has a b* value of less than 0 in the L*a*b* color system.

Transparent conductive gas barrier laminate and device including the laminate

A laminate prepared by pretreating at least one side of a substrate of a plastic film by plasma treatment and then directly laminating a thermoplastic resin on a surface treated by pretreatment.

Growing community of inventors

Tokyo, Japan

Miki Fukugami