The present invention relates to a printed substrate comprising a first paper layer, the first paper layer comprising a first side and an opposing second side, the first side comprising a flexography print area and a non-print area, wherein the flexography print area has a color density no less than about 0.70 as measured according to Color Density Test disclosed herein, and wherein the non-print area has a roughness in the range of from about 3 μm to about 15 μm as measured according to Surface Roughness Test disclosed herein; a package for accommodating one or more articles comprising the printed substrate; and a method of making the printed substrate.

An aqueous coating composition useful in coating a variety of substrates, including interior or exterior portions of food or beverage cans. The coating composition includes a multi-stage polymeric latex having two or more emulsion polymerized stages in an aqueous carrier liquid, wherein the latex has one or both of: (i) a lower glass transition temperature (Tg) emulsion polymerized stage having a calculated Tg that is at least 20° C. lower than a calculated Tg of a higher Tg emulsion polymerized stage, or (ii) a gradient Tg with at least a 20° C. differential in the calculated Tg of monomers fed at the start of polymerization compared to monomers fed at the end of polymerization.

When spray-applied on the interior of a food or beverage can, the composition exhibits a global extraction result of less than 50 ppm and a metal exposure value of less than 3 mA.

A resin-coated metal sheet for containers, on which wrinkle defects are not generated during a post-process heat treatment in can making of two-piece cans that involves a high degree of processing. The resin-coated metal sheet for containers includes a metal sheet and a resin coating layer disposed on each of surfaces of the metal sheet. The resin coating layer on at least one surface contains a resin material that contains 90 mol % or more of an ethylene terephthalate unit and that has a mobile amorphous content of 80% or more.

A resin-coated metal sheet for containers, on which wrinkle defects are not generated during a post-process heat treatment in can making of two-piece cans that involves a high degree of processing. The resin-coated metal sheet for containers includes a metal sheet and a resin coating layer disposed on each of surfaces of the metal sheet. The resin coating layer on at least one surface contains a resin material that contains 90 mol % or more of an ethylene terephthalate unit and that has a mobile amorphous content of 80% or more.

The present inventors conducted intensive studies for solving the problems. As a result, they found a heat-sealable polyester resin which can be used for food application and which exhibits excellent adhesiveness to various containers made of polystylene, polyvinyl chloride, A-PET (amorphous polyethylene terephthalate) , or polypropylene, each having different property.

The aim of the present invention is to provide a polyester resin which exhibits excellent adhesiveness to various substrates such as polystylene, polyvinyl chloride, or A-PET.

According to the present invention, there is provided a polyester resin containing a polycarboxylic acid component and a polyhydric alcohol component as constitution units, wherein, when the total amount of the polyhydric alcohol component is taken as 100 mol%, the content of diethylene glycol component is 60 mol% or more, and wherein the glass transition temperature of the polyester resin is 20° C. or lower.

The present inventors conducted intensive studies for solving the problems. As a result, they found a heat-sealable polyester resin which can be used for food application and which exhibits excellent adhesiveness to various containers made of polystylene, polyvinyl chloride, A-PET (amorphous polyethylene terephthalate) , or polypropylene, each having different property.

The aim of the present invention is to provide a polyester resin which exhibits excellent adhesiveness to various substrates such as polystylene, polyvinyl chloride, or A-PET.

According to the present invention, there is provided a polyester resin containing a polycarboxylic acid component and a polyhydric alcohol component as constitution units, wherein, when the total amount of the polyhydric alcohol component is taken as 100 mol%, the content of diethylene glycol component is 60 mol% or more, and wherein the glass transition temperature of the polyester resin is 20° C. or lower.

A gas barrier film formed of a cured product of a mixture including a polycarboxylic acid, a polyamine compound, and a polyvalent metal compound, in which in an infrared absorption spectrum of the gas barrier film, an area ratio of an amide bond represented by B/A is equal to or less than 0.380, an area ratio of a carboxylic acid represented by C/A is equal to or less than 0.150, and an area ratio of carboxylate represented by D/A is equal to or more than 0.520.

A gas barrier film formed of a cured product of a mixture including a polycarboxylic acid, a polyamine compound, and a polyvalent metal compound, in which in an infrared absorption spectrum of the gas barrier film, an area ratio of an amide bond represented by B/A is equal to or less than 0.380, an area ratio of a carboxylic acid represented by C/A is equal to or less than 0.150, and an area ratio of carboxylate represented by D/A is equal to or more than 0.520.

An object is to provide a food container and a paper product which are water resistant, oil resistant, and recyclable. Provided is a food container obtained by mixing and stirring water, konjac mannan, and an alkali to liberate an acetyl group to obtain modified mannan whose swelling is suppressed, releasing suppression of swelling of the modified mannan by neutralization to obtain neutral or acidic modified mannan, solating or gelating the neutral or acidic modified mannan, applying the solated mannan sol or the gelated mannan gel to a paper food container, and drying the mannan sol or the mannan gel.

An object is to provide a food container and a paper product which are water resistant, oil resistant, and recyclable. Provided is a food container obtained by mixing and stirring water, konjac mannan, and an alkali to liberate an acetyl group to obtain modified mannan whose swelling is suppressed, releasing suppression of swelling of the modified mannan by neutralization to obtain neutral or acidic modified mannan, solating or gelating the neutral or acidic modified mannan, applying the solated mannan sol or the gelated mannan gel to a paper food container, and drying the mannan sol or the mannan gel.