Abstract: Tamper-evident features for containers. A tamper-evident film is target printed onto a sheet material that is thermoformable. The sheet is thermoformed into a container base or lid having a desired shape, such that the tamper-evident film is positioned in a desired area. A container lid is disposed on the container base, and heat sealed to a rim or edge of the container base. The heat sealing activates an adhesive of the tamper-evident film, and when the container lid is removed or separated from the container base, a first portion of the tamper-evident film remains on the container lid and a second portion remains on the container base. The separation of the tamper-evident film provides an indication of tampering.

Abstract: Upon manufacturing a heat-resistant container using PET sheet, high heat-resistance is achieved without a stretching operation. The method comprises a molding sheet-making process, wherein a sheet is made including organic acid metal salt particulates produced by allowing an inorganic basic material or carbonate that is solid at ordinary temperature to react with an organic acid that is solid at ordinary temperature in the equivalent relationship, and a container-molding process, wherein, the molding sheet made in the molding sheet-making process is heated to 80-130° C., formed into a container shape by a vacuum or vacuum-pressure forming machine using a mold, and heat-set by keeping at 130-220° C. in the same mold, and the container formed in the container-molding process has a crystallinity of 18% or more.

Abstract: The invention was made in order to provide a multi-color printing method of a plastic film wherein multi-color print can be made fast without requiring complex operations, while functions of the anchor-coating layer and the shielding are ensured sufficiently, and provides a method of multi-color printing on a plastic film, which comprises an anchor-coating process wherein an anchoring agent is applied to the plastic film by a gravure roll to form an anchor-coating layer which acts as receptive layer to multi-color inks, a multi-color printing process wherein multi-color print is provided on said anchor-coating layer by continuous ink jet printers, a shielding layer-coating process wherein a titanium white ink is applied to said multi-color print by a gravure roll to form a shielding layer, and drying processes being provided after said anchor-coating process, multi-color printing process and shielding layer-coating process, respectively, and an apparatus therefor.

Abstract: The invention was made in order to provide a multi-color printing method of a plastic film wherein multi-color print can be made fast without requiring complex operations, while functions of the anchor-coating layer and the shielding are ensured sufficiently, and provides a method of multi-color printing on a plastic film, which comprises an anchor-coating process wherein an anchoring agent is applied to the plastic film by a gravure roll to form an anchor-coating layer which acts as receptive layer to multi-color inks, a multi-color printing process wherein multi-color print is provided on said anchor-coating layer by continuous ink jet printers, a shielding layer-coating process wherein a titanium white ink is applied to said multi-color print by a gravure roll to form a shielding layer, and drying processes being provided after said anchor-coating process, multi-color printing process and shielding layer-coating process, respectively, and an apparatus therefor.

Abstract: Provided is a paper container for foods capable of being fabricated by heat sealing which does not absorb flavors, such as limonene, and capable of storing a long period at ordinary temperature. The laminated material for paper containers is composed of paper substrate layer/adhesive for paper layer/first adhesive for barrier layer/barrier layer/second adhesive for barrier layer/heat-sealable PET resin layer, has an oxygen gas barrier ability of 2.0 ml/m2·D·atm or less, and the heat-sealable PET resin layer is made having a crystal portion of less than 15%, non-crystal portion of 85% or more.

Abstract: This invention provides a food container which can be manufactured cheaply by using inexpensive general PET resin or further inexpensive PET resin for fiber or recovered PET flakes, and nevertheless, which has a high heat resistance up to 250° C., and the container is obtained by adding a chain extender and a compatibilizer and talc to PET resin, charging the mixture into an extruder 30 having two or more vent holes, degassing under a condition where the PET resin is melted with heating by sucking at a high vacuum of ?99.99 kPa or lower from the vent holes 33, 34, thereafter, forming a sheet by extrusion molding, pressure-forming with vacuum the sheet by a thermoforming machine, forming the container by keeping in a mold at 100-220° C. The container has a total of the content of crystal portion represented by the following formula and the content of talc being 25% by weight or more.

Abstract: Upon manufacturing a heat-resistant container using PET sheet, high heat-resistance is achieved without a stretching operation. The method comprises a molding sheet-making process, wherein a sheet is made including organic acid metal salt particulates produced by allowing an inorganic basic material or carbonate that is solid at ordinary temperature to react with an organic acid that is solid at ordinary temperature in the equivalent relationship, and a container-molding process, wherein, the molding sheet made in the molding sheet-making process is heated to 80-130° C., formed into a container shape by a vacuum or vacuum-pressure forming machine using a mold, and heat-set by keeping at 130-220° C. in the same mold, and the container formed in the container-molding process has a crystallinity of 18% or more.

Abstract: [Problem] To provide a paper container for foods capable of being fabricated by heat sealing which does not absorb flavors, such as limonene, and capable of storing a long period at ordinary temperature. [Solving Means] The laminated material for paper containers is composed of paper substrate layer/adhesive for paper layer/first adhesive for barrier layer/barrier layer/second adhesive for barrier layer/heat-sealable PET resin layer, has an oxygen gas barrier ability of 2.0 ml/m2·D·atm or less, and the heat-sealable PET resin layer is made having a crystal portion of less than 15%, non-crystal portion of 85% or more.

Abstract: This invention provides a food container which can be manufactured cheaply by using inexpensive general PET resin or further inexpensive PET resin for fiber or recovered PET flakes, and nevertheless, which has a high heat resistance up to 250° C., and the container is obtained by adding a chain extender and a compatibilizer and talc to PET resin, charging the mixture into an extruder 30 having two or more vent holes, degassing under a condition where the PET resin is melted with heating by sucking at a high vacuum of ?99.99 kPa or lower from the vent holes 33, 34, thereafter, forming a sheet by extrusion molding, pressure-forming with vacuum the sheet by a thermoforming machine, forming the container by keeping in a mold at 100-220° C. The container has a total of the content of crystal portion represented by the following formula and the content of talc being 25% by weight or more.

Abstract: This invention relates to a method of making a multilayer container which comprises: a primary stretching and heat-setting process wherein a multilayer sheet comprising a A-PET layer, a functional resin layer and a sealant layer, is heated, primarily stretched and then primarily heat-set, and a secondary stretching and heat-setting process wherein the multilayer sheet treated in the primary stretching and heat-setting process is molded with heating by a mold of a thermoforming machine while secondary stretching is performed, followed by secondary heat-setting in the same mold.

Abstract: In an oven used for printing machine and the like, drying is rendered possible to be conducted without decreasing traveling speed (120 m/min or more) by a short and compact drying zone for a coating liquid agent which is made aqueous as well as oily coating liquid agent. A plurality of hot air blow-off nozzles 222 are provided in the drying portion 220 of the first printing unit 200. Heating guide rolls 223a are provided at the former portion, and cooling guide rolls 223b are provided at the latter portion, so that they meet the hot air blow-off nozzles 222. Liquid delivery pipes 224a for injecting hot water are connected to the heating guide rolls 223a, and liquid delivery pipes 224b for injecting cooling water are connected to the cooling guide rolls 223b. Introduced raw web 1 is heated to the boiling point of solvent or higher than that by the heating guide rolls 223a.

Abstract: This invention relates to a method of manufacturing sheet for food containers, which comprises: adding a chain extender to moist flakes of recovered PET; charging the flakes of recovered PET containing the chain extender into an extruder having two or more vent holes, melting and kneading the flakes of recovered PET with sucking to degas through the vent holes, while molecular chains of the recovered PET of which the molecular weight has been lowered are bonded to each other by the chain extender to render the molecular weight higher, and simultaneously, ethylene glycol and acetaldehyde, produced during depolymerization by water and heat, are trapped by the chain extender to remove residual aldehydes; and extruding the recovered PET from the extruder into sheet.

Abstract: [Problems] In an oven used for printing machine and the like, drying is rendered possible to be conducted without decreasing traveling speed (120 m/min or more) by a short and compact drying zone for a coating liquid agent which is made aqueous as well as oily coating liquid agent. [Solving Means] A plurality of hot air blow-off nozzles 222 are provided in the drying portion 220 of the first printing unit 200. Heating guide rolls 223a are provided at the former portion, and cooling guide rolls 223b are provided at the latter portion, so that they meet the hot air blow-off nozzles 222. Liquid delivery pipes 224a for injecting hot water are connected to the heating guide rolls 223a, and liquid delivery pipes 224b for injecting cooling water are connected to the cooling guide rolls 223b. Introduced raw web 1 is heated to the boiling point of solvent or higher than that by the heating guide rolls 223a.

Abstract: This invention relates to a method of making a multilayer container which comprises: a primary stretching and heat-setting process wherein a multilayer sheet comprising a A-PET layer, a functional resin layer and a sealant layer, is heated, primarily stretched and then primarily heat-set, and a secondary stretching and heat-setting process wherein the multilayer sheet treated in the primary stretching and heat-setting process is molded with heating by a mold of a thermoforming machine while secondary stretching is performed, followed by secondary heat-setting in the same mold.

Abstract: This invention relates to a method of making a heat-resistant transparent container which involves the steps of: a primary stretching and heat-setting process wherein an amorphous polyethylene terephthalate sheet is heated, primarily stretched and then primarily heat-set and a secondary stretching and heat-setting process wherein the sheet treated in the primary stretching and heat-setting process is molded with heating in a mold of a thermoforming machine while secondary stretching is performed, followed by secondary heat-setting in the same mold.

Abstract: This invention relates to a method of manufacturing sheet for food containers, which comprises: adding a chain extender to moist flakes of recovered PET; charging the flakes of recovered PET containing the chain extender into an extruder having two or more vent holes, melting and kneading the flakes of recovered PET with sucking to degas through the vent holes, while molecular chains of the recovered PET of which the molecular weight has been lowered are bonded to each other by the chain extender to render the molecular weight higher, and simultaneously, ethylene glycol and acetaldehyde, produced during depolymerization by water and heat, are trapped by the chain extender to remove residual aldehydes; and extruding the recovered PET from the extruder into sheet.

Abstract: The present invention provides a method of manufacturing high-melting-tension heat-resistant transparent or opaque sheets, boards, and molds from polyethylene terephthalate (PET). The method is characterized in that a mixture of: (1) PET polyester whose melt flow rate (MFR) is 45-130 g/10 minutes (a); (2) coupling agent master batch (f) comprising coupling agent (d) and substrate (e), wherein coupling agent (d) is a mixture of compounds containing 2 epoxy groups (b) and compounds containing 3 or more epoxy groups (c); and (3) catalyst master batch (i) comprising coupling reaction catalyst (g) and substrate (h); is melted in a reaction-extruder to give PET polyester whose MFR is 40 g/10 minutes or less.

Abstract: This invention relates to a method of manufacturing a thermal laminate by laminating a first substrate film layer and a second substrate film layer through an adhesive resin layer, which involves the steps of, integrating the adhesive resin layer with the first substrate film layer, heating the surface of the adhesive resin layer by heat rays in the presence of oxygen to induce functional groups which contribute to adhesion, and then, superimposing the second substrate film layer on the adhesive resin layer to be bonded thereto with pressure. The thermal laminate has a strong laminated strength without using a solvent, and is excellent in the safety and hygiene of foods.

Abstract: An infusion solution bag is made of a particular laminated film which contains a heat-resistant resin layer, an oxygen gas barrier layer and a sealant layer laminated through an adhesive resin layer by thermal lamination, which is a solventless method.

Abstract: A PET-based polyester packaging film capable of weld-cut sealing and heat-shrinkage refers to a film obtained by biaxially orienting a material prepared through block copolymerization of a PET/PETG/polyester elastomer with an epoxy resin and a catalyst. This film eliminates the most serious weak points in physical properties of conventional PET films, and is useful for packaging of books, bottlesets, food containers, etc., for general packaging, packaging of industrial materials, and the like, and is further useful in the field of packing and packaging of daily commodities, civil engineering and construction members, electric and electronic members, and automobile vehicle members, etc. Moreover, this film can be produced through effective use of the huge amount of recycled PET bottles and inexpensive PET for fiber as a prepolymer, and thus is also highly beneficial socially.