Package for eggs and method for manufacturing said package

FIELD: packaging industry.

SUBSTANCE: present invention relates to a method of producing package for eggs, wherein interacting fasteners in cover part and bottom part of package for eggs are formed by and are located relative to each other so as to compensate for change in shape of cover part, arising during production.

EFFECT: invention also relates to package for eggs made using said method.

39 cl, 9 dwg

 



 

Same patents:

FIELD: textile fabrics, paper.

SUBSTANCE: invention is related to the field of production of capillary-porous moisture-absorbing materials and products on the basis of mineral fibre, intended for operation mainly in medium of water vapours, hydrogen peroxide, organic and oil dissolvents at temperatures of up to 500°C. It may be used, in particular in vapour-water plasma torches, which use vapour of liquid working medium as plasma-forming medium. Method for production of capillary-porous moisture-absorbing material stipulates for application of hollow mould with perforated wall and filter. Internal cavity of mould is connected to system of vacuum suction and drain of liquid phase. Vacuumising is carried out from the side of mold internal cavity. Produced material of profiled part is additionally pressed. Then thermal treatment and mechanical processing of profiled part is carried out. Insert is made in the form of profiled part from capillary-porous moisture-absorbing material.

EFFECT: production of material, which is not flammable, does not release toxic substance when heated, has required mechanical and moisture strength, moisture permeability, low heat conductivity, does not lose its properties after multiple moistening and drying of used fibre up to limit temperatures.

11 cl, 6 dwg

FIELD: textile fabrics, paper.

SUBSTANCE: method is intended for manufacture of nonwoven articles of three-dimensional configuration from fiber mass. In process of method realisation fibers are deposited on surface of solid-state shapes with production of moist product in lower solid-state shape on mesh insert. Growth of fiber material by water filtration from fiber mass is done due to pressure difference, moisture removal, and vacuum pumping from upper solid-state shape. Simultaneously to drying product is prepressed. Lower and upper solid-state shapes are perforated. Fiber mass used is natural textile fabrics with separated fibers 5-75 mm long and short cellulose fiber in ratio of wt % (65-95):(5-35) accordingly. After drying article is treated by urethane oligomer in solution of hydrocarbon chloride or mixture of hydrocarbon chlorides with concentration of 1-65 wt %.

EFFECT: production of cheap molded nonwoven articles of three-dimensional configuration with high-quality surface, which possess high strength and noise absorption and low heat conductivity, which may be widely used for vehicle cabin and in construction.

8 ex, 1 tbl

FIELD: manufacture of products from pulp.

SUBSTANCE: method involves preparing aqueous suspension having required concentration from fibrous materials; molding wet product by settling fibers on molding base; removing residual moisture by using drying process; providing dosed feeding of liquid and solid modifiers into prepared aqueous suspension for rendering desirable physical and mechanical properties to material; providing settling of fibers onto surface of solid molds fabricated from porous material; molding wet product on lower surface of molding base by "from the bottom to the top" pattern through growing of fibrous material owing to filtering of water from suspension through pores of molding base due to pressure drop created therein; simultaneously with drying, product is subjected to premolding procedure, with product drying process being carried out in heated detachable solid mold and water vapors being simultaneously removed by providing vacuum pumping-out thereof from upper and lower parts of mold.

EFFECT: improved quality of surface of products with different consumer qualities and dense material structure, simplified processing equipment and reduced operational costs.

2 cl, 4 dwg

The invention relates to the processing of secondary raw paper for production of bulk products from fibrous suspensions and relates to equipment for manufacturing products made of molded fibrous mass of complex forms in small quantities or small series

The invention relates to a device for producing shaped products: egg trays for eggs, containers for utensils, other packing piece goods complex spatial forms, and can be used in the pulp and paper, textile, food, construction and other industries

The invention relates to a cleaning liquid and gaseous media, and in particular to methods and devices for the production of filter elements, and is designed for thin and medium mechanical cleaning solutions galvanoplastics, PCBs, sewage, diesel fuel and oils

FIELD: manufacture of products from pulp.

SUBSTANCE: method involves preparing aqueous suspension having required concentration from fibrous materials; molding wet product by settling fibers on molding base; removing residual moisture by using drying process; providing dosed feeding of liquid and solid modifiers into prepared aqueous suspension for rendering desirable physical and mechanical properties to material; providing settling of fibers onto surface of solid molds fabricated from porous material; molding wet product on lower surface of molding base by "from the bottom to the top" pattern through growing of fibrous material owing to filtering of water from suspension through pores of molding base due to pressure drop created therein; simultaneously with drying, product is subjected to premolding procedure, with product drying process being carried out in heated detachable solid mold and water vapors being simultaneously removed by providing vacuum pumping-out thereof from upper and lower parts of mold.

EFFECT: improved quality of surface of products with different consumer qualities and dense material structure, simplified processing equipment and reduced operational costs.

2 cl, 4 dwg

FIELD: textile fabrics, paper.

SUBSTANCE: method is intended for manufacture of nonwoven articles of three-dimensional configuration from fiber mass. In process of method realisation fibers are deposited on surface of solid-state shapes with production of moist product in lower solid-state shape on mesh insert. Growth of fiber material by water filtration from fiber mass is done due to pressure difference, moisture removal, and vacuum pumping from upper solid-state shape. Simultaneously to drying product is prepressed. Lower and upper solid-state shapes are perforated. Fiber mass used is natural textile fabrics with separated fibers 5-75 mm long and short cellulose fiber in ratio of wt % (65-95):(5-35) accordingly. After drying article is treated by urethane oligomer in solution of hydrocarbon chloride or mixture of hydrocarbon chlorides with concentration of 1-65 wt %.

EFFECT: production of cheap molded nonwoven articles of three-dimensional configuration with high-quality surface, which possess high strength and noise absorption and low heat conductivity, which may be widely used for vehicle cabin and in construction.

8 ex, 1 tbl

FIELD: textile fabrics, paper.

SUBSTANCE: invention is related to the field of production of capillary-porous moisture-absorbing materials and products on the basis of mineral fibre, intended for operation mainly in medium of water vapours, hydrogen peroxide, organic and oil dissolvents at temperatures of up to 500°C. It may be used, in particular in vapour-water plasma torches, which use vapour of liquid working medium as plasma-forming medium. Method for production of capillary-porous moisture-absorbing material stipulates for application of hollow mould with perforated wall and filter. Internal cavity of mould is connected to system of vacuum suction and drain of liquid phase. Vacuumising is carried out from the side of mold internal cavity. Produced material of profiled part is additionally pressed. Then thermal treatment and mechanical processing of profiled part is carried out. Insert is made in the form of profiled part from capillary-porous moisture-absorbing material.

EFFECT: production of material, which is not flammable, does not release toxic substance when heated, has required mechanical and moisture strength, moisture permeability, low heat conductivity, does not lose its properties after multiple moistening and drying of used fibre up to limit temperatures.

11 cl, 6 dwg

FIELD: packaging industry.

SUBSTANCE: present invention relates to a method of producing package for eggs, wherein interacting fasteners in cover part and bottom part of package for eggs are formed by and are located relative to each other so as to compensate for change in shape of cover part, arising during production.

EFFECT: invention also relates to package for eggs made using said method.

39 cl, 9 dwg

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