Patent classifications
D21J3/12
WET CELLULOSE FIBER SHEET AND METHOD FOR PRODUCING CELLULOSE FIBER MOLDED BODY
A wet sheet which is hard to be fractured during production into a molded body, stable in shape, and easy to handle in processing, and a method for producing a molded body from the wet sheet. The wet sheet includes fine cellulose fibers having an average fiber diameter of 10000 nm or smaller, and pulp, wherein the wet sheet has a water content of 60 mass % or higher, and a thickness of 0.5 mm or more and 10 mm or less. A method for producing a molded body includes applying heat and pressure to a wet sheet to obtain a molded body, wherein the wet sheet includes fine cellulose fibers having an average fiber diameter of 10000 nm or smaller, and pulp, and has a water content of 60 mass % or higher, and a thickness of 0.5 mm or more and 10 mm or less.
PROCESS FOR MANUFACTURING A FUNCTIONAL FLEXIBLE CELLULOSIC SUBSTRATE, SETUP FOR IMPLEMENTING SAID PROCESS
A process for manufacturing a flexible cellulosic substrate comprises at least one functional circuit and/or at least one functional board. The flexible cellulosic substrates are made functional by printing with a functional ink, which provides good performance (signal speed/dielectric properties of the substrate), is economical, thermally and dimensionally stable, and is able to be produced simply and reproducibly at an industrial rate. The process starts with an aqueous fibrous suspension comprising paper pulp and/or a pulp of (micro/macro) cellulose fibrils and produces a wet fibrous mat from this suspension. One of the faces of the wet fibrous mat is printed by means of at least one functional ink capable of transmitting, emitting, and/or processing at least one signal in order to produce at least one topography comprising at least one track for circulation of the signal. Printed circuits and functional boards are obtained by the manufacturing process.
PROCESS FOR MANUFACTURING A FUNCTIONAL FLEXIBLE CELLULOSIC SUBSTRATE, SETUP FOR IMPLEMENTING SAID PROCESS
A process for manufacturing a flexible cellulosic substrate comprises at least one functional circuit and/or at least one functional board. The flexible cellulosic substrates are made functional by printing with a functional ink, which provides good performance (signal speed/dielectric properties of the substrate), is economical, thermally and dimensionally stable, and is able to be produced simply and reproducibly at an industrial rate. The process starts with an aqueous fibrous suspension comprising paper pulp and/or a pulp of (micro/macro) cellulose fibrils and produces a wet fibrous mat from this suspension. One of the faces of the wet fibrous mat is printed by means of at least one functional ink capable of transmitting, emitting, and/or processing at least one signal in order to produce at least one topography comprising at least one track for circulation of the signal. Printed circuits and functional boards are obtained by the manufacturing process.
Shaped tray or plate of fibrous material and a method of manufacturing the same
The invention relates to a method of manufacturing a shaped tray or plate of fibrous material. The method comprises the steps of (i) providing a fibrous pulp, in which the fibres substantially consist of at least 85 wt-% of softwood fibres having an average fibre length of at least 2.0 mm and at most 15 wt-% of broke having a fibre length of about 0.05 mm to 1.0 mm, (ii) turning the pulp into a foamed suspension, (iii) supplying the foamed suspension from a headbox to a forming fabric of a board machine to form a fibrous web, (iv) drying the web to obtain a dried web having a compressibility in the thickness direction of at least 20%, and (v) including the web as a layer in a board, which is turned to said tray or plate by thermopressing or deep-drawing. The invention even covers shaped trays and plates produced by use of the method.
Shaped tray or plate of fibrous material and a method of manufacturing the same
The invention relates to a method of manufacturing a shaped tray or plate of fibrous material. The method comprises the steps of (i) providing a fibrous pulp, in which the fibres substantially consist of at least 85 wt-% of softwood fibres having an average fibre length of at least 2.0 mm and at most 15 wt-% of broke having a fibre length of about 0.05 mm to 1.0 mm, (ii) turning the pulp into a foamed suspension, (iii) supplying the foamed suspension from a headbox to a forming fabric of a board machine to form a fibrous web, (iv) drying the web to obtain a dried web having a compressibility in the thickness direction of at least 20%, and (v) including the web as a layer in a board, which is turned to said tray or plate by thermopressing or deep-drawing. The invention even covers shaped trays and plates produced by use of the method.
IMPROVED PULP DISPOSABLE TRAY
The present invention solves the above mentioned technical problems by providing a three dimensional molded shape suitable for use in the fabrication of a food tray, the molded shape comprising a molded pulp portion with side walls and a bottom wall comprising virgin or recycled cellulose fibers and a film laminate portion comprising a polyester film with an amorphous polyester heat seal layer.
IMPROVED PULP DISPOSABLE TRAY
The present invention solves the above mentioned technical problems by providing a three dimensional molded shape suitable for use in the fabrication of a food tray, the molded shape comprising a molded pulp portion with side walls and a bottom wall comprising virgin or recycled cellulose fibers and a film laminate portion comprising a polyester film with an amorphous polyester heat seal layer.
MOLDED ARTICLES FROM A FIBER SLURRY
Contoured articles formed in a mold from a fiber slurry are provided. The articles comprise a blend of cellulose fibers and cellulose ester, such as cellulose ester staple fibers. The articles are suitable in a wide array of end uses, including as cups, lids, boxes or pouches, storage containers, trays, plates, food trays, cutlery, coffee cups, coffee cup lid, packaging, bowls, clam shells, bottle caps, straws, covers, and packaging inserts.
MOLDED ARTICLES FROM A FIBER SLURRY
Contoured articles formed in a mold from a fiber slurry are provided. The articles comprise a blend of cellulose fibers and cellulose ester, such as cellulose ester staple fibers. The articles are suitable in a wide array of end uses, including as cups, lids, boxes or pouches, storage containers, trays, plates, food trays, cutlery, coffee cups, coffee cup lid, packaging, bowls, clam shells, bottle caps, straws, covers, and packaging inserts.
Egg carton and formation apparatus and method
An egg carton and method and apparatus for forming an egg carton. A main body of the egg carton may be made of a single sheet of material and folded or otherwise bent to form the majority of the carton's interior space. Partition walls may be engaged with slots formed in the main body to define separate storage areas of the interior space as well as help hold the main body in the desired configuration. Hooks on the sides of the partition walls may engage with openings in the main body to secure the main body to the partition walls.