1307results about "Domestic packaging" patented technology

The present disclosure relates to a biodegradable multilayer film comprising stacked on each other in the following order: a) a first outer layer comprising a first polymer selected from the group consisting of poly (butylene adipate-co-terephthalate) (PBAT), poly (butylene succinate) (PBS), poly (butylene succinate-co-adipate) (PBSA), and mixtures thereof; b) a core layer comprising a blend of thermoplastic starch (TPS) and polybutylene adipate terephthalate (PBAT); c) a second outer layer comprising a second polymer selected from the group consisting of poly (butylene adipate-co-terephthalate) (PBAT), poly (butylene succinate) (PBS), poly (butylene succinate-co-adipate) (PBSA), and mixtures thereof. The present disclosure also relates to a disposable bag, a bioreactor and a container suitable for mixing, packaging, storing or transporting biopharmaceutical substances, wherein the disposable bag, bioreactor and container comprise the biodegradable multilayer film.

The present invention relates to a lid film for airtight sealing of beverage capsules, in particular coffee capsules, comprising excellent barrier properties against gas ingress, water or humidity and oxygen: i.) at least one layer of paper, ii.) at least one layer containing polylactic acid, iii.) at least one layer of metallization, iv.) at least one sealing layer containing at least one thermoplastic polymer made from glucose, lignin or cellulose.

The invention discloses a high-barrier degradable vegetable and fruit preservative film based on multi-layer compounding and a preparation method thereof, belongs to the technical field of food packaging materials, and aims to solve the technical problem that the barrier property, the mechanical property and the antibacterial property of the degradable vegetable and fruit preservative film in the prior art need to be further improved. The degradable vegetable and fruit preservative film comprises a first layer, a second layer and a third layer which are sequentially laminated, and the first layer is prepared from, by weight, 65-75 parts of polylactic acid, 4-8 parts of maleic anhydride grafted polylactic acid, 2-4 parts of modified carbon nitride, 1-3 parts of alizarin microcapsules, 3-6 parts of modified lignin and 1-2 parts of auxiliary additives; through the synergistic effect of the modified carbon nitride, the alizarin microcapsules and the modified lignin, the barrier property, the mechanical property and the antibacterial property of the degradable vegetable and fruit preservative film are further improved.

A multilayer packaging material includes a substrate formed of a cellulosic fiber-based material. The substrate has a first major surface and a second major surface opposite the first major surface. An oxygen barrier layer is formed of a PVOH material attached to the substrate, wherein the oxygen barrier layer is an innermost layer of the multilayer packaging material and further wherein the oxygen barrier layer is heat sealable. At least one moisture barrier layer is attached to the substrate, the moisture barrier layer selected from an inner moisture barrier layer disposed intermediate the substrate and the oxygen barrier layer and an outer moisture barrier layer disposed on the second major surface of the substrate. In further aspects, a packaging article, a method for making a multilayer packaging material, and a method for packaging a product are provided.

The invention discloses a biodegradable flexible conductive high-hydrophobicity sensor substrate and a preparation method and application thereof.The preparation method comprises the steps that a polylactic acid electrostatic spinning solution and a chitosan / polyethylene oxide mixed electrostatic spinning solution are prepared on the basis of a safe and non-toxic food-grade material; the preparation method comprises the following steps: sequentially spinning by adopting an electrostatic spinning technology to form a sandwich structure flexible substrate, transferring a carbon nano tube conductive film, and tightly attaching the carbon nano tube conductive film to the surface of a polylactic acid layer of the sandwich structure substrate, thereby finally obtaining the flexible conductive high-hydrophobicity composite substrate. According to the invention, a hydrophobic-hydrophilic-hydrophobic sandwich structure is constructed through multi-layer electrostatic spinning, and a surface carbon nanotube conductive layer is cooperated, so that the substrate has high hydrophobicity, excellent conductivity and flexible tensile property. The preparation method has the characteristics of controllable process, low cost and environmental friendliness, and the obtained substrate is expected to have wide application prospects in the fields of food packaging, sensor substrates, intelligent wearing, health monitoring and the like.

A formulation and method for producing a multilayer film and a coated multilayer film comprising a barrier layer including a polar polymer resin, such as EVOH, as described.

A resealable bag topper for application to a non-resealable packaging bag is disclosed. An example device includes a flexible topper body defining an access channel, a resealable mechanism such as a zipper or slider closure to open and close the channel, and an adhesive portion for affixing the body to the bag. To enable multiple uses of the device, the adhesive portion is specially configured. In one example, the adhesive portion includes a repositionable adhesive or a multi-layer assembly of stacked adhesive layers that enables the entire device to be removed from a first bag and reapplied to a subsequent bag. In another example, the adhesive portion is made integral with the topper body.

The invention relates to a method for producing a multilayer structure comprising an organic barrier layer, adhesive layer and substrate, comprising the following steps (a) providing a carrier film, (b) wherein a major part of the surface of the carrier film is provided with a release agent chosen from (i) an organic release layer, which organic release layer has the capacity to effect a releasable bond from the surface of the carrier film and a non-releasable bond with the surface of an organic barrier layer to be applied on the release layer and / or (ii) a metal layer on the carrier film which adheres stronger to the carrier film than to the organic barrier layer, (c) providing an organic barrier layer on the release agent, (d) providing an adhesive layer on the organic barrier layer, and bonding the organic barrier layer with said adhesive to a substrate, and (e) stripping said carrier film from the multilayer structure.

The present invention concerns a paper-based barrier multilayer packaging material structure (1) being formed as a unitary sheet and comprising from its outer surface to its inner surface, the following layers: —a polymer dispersion coating (9) having a thickness of 1 to 10 μm, —a paperboard (8) having a grammage of between 120 g / m2 and 500 g / m2, —a water-based or solvent-less adhesive (7) having a thickness of 1 to 10 μm, —a barrier metallized paper layer (MBPL) having substance weight between 30-120 g / m2, preferably 45 to 90 g / m2 and a Water Vapour Transmission Rate (WVTR) of 10 to 0.1 g / m2 / d, preferably a WVTR of 1.0 to 0.1 g / m2 / d measured at 38° C. and 90% RH, and an Oxygen Transmission Rate (OTR) comprised between 100 and 0.1 cc / m2 / d, measured at 23° C. and 50% RH, preferably an OTR comprised between 1.0 and 0.1 cc / m2 / d. —at least one layer of a polymer dispersion coating (2) having a thickness of 1 to 25 μm, preferably of 5 to 15 μm.

A shipping container including a multilayer composite including a core layer including an assembly and a first cover layer provided on the core layer, wherein the first cover layer includes a first composition having a density of at least 0.903 g / cm3 and including polypropylene and optionally reinforcement fibers such as glass fibers wherein the assembly includes a plurality of elongated foamed elements that are arranged next to one another in one plane and bonded to one another at abutting side faces thereof, wherein the elongated foamed elements have been made by cutting at least one foamed sheet having a top surface and a bottom surface, the at least one foamed sheet having been prepared by a foamed extrusion process and the foamed sheet includes a polymer composition including polypropylene, wherein the cutting is perpendicular to the top surface and the bottom surface of the at least one foamed sheet.

A can containing a solid, liquid and / or a gaseous medium which can have excess pressure or can develop such during transport or storage. The cylindrical can shell of the can includes paper or cardboard material and at least two wound layers, and is closed at the bottom with a bottom element and at the top with a cover element. The innermost layer of the can shell consisting of a straight-wound barrier layer, which includes a longitudinal seam that runs in the longitudinal direction of the can and is sealed inwards by a film layer, which overlaps the barrier layer near the longitudinal seam, or the longitudinal seam is sealed by a sealing strip running straight in the longitudinal direction or the longitudinal seam forms an increase in thickness and the longitudinal edge of a further layer faces a flank of the increase in thickness.

In an embodiment, a package can include a first creped paper packaging material, a second creped paper packaging material, and one or more shipping items. The first creped paper packaging material can include a first single-layer creped packaging paper. The second creped paper packaging material can include a second single-layer creped packaging paper. The first creped paper packaging material and the second creped paper packaging material can define a respective material perimeter, with the second creped paper packaging material being attached to the first creped paper packaging material proximal their respective material perimeters to form a set of bound borders. The first creped paper packaging material and the second creped paper packaging material can thereby be attached together in a manner to define a package enclosure. The one or more shipping items can be carried in the package enclosure.

A system for forming a blister package includes a thermoformable film and a lidding film. The thermoformable film has a thermoformable film exterior layer and a thermoformable film interior layer. The thermoformable film exterior layer includes at least 50% by weight polypropylene. The thermoformable film interior layer includes at least 50% by weight polypropylene and (a) a tackifier and / or (b) a cyclic olefin copolymer. The lidding film includes a lidding film exterior layer, a seal layer, and a lidding film interior layer between the lidding film exterior layer and the seal layer. The lidding film exterior layer includes at least 50% polypropylene. The lidding film interior layer includes at least 50% polypropylene and a tackifier. The seal layer includes a polyolefin plastomer.

The present invention relates to a heat-sealable, substantially plant-based and re-pulpable, multilayer packaging material, comprising a bulk layer of paper, paperboard or other cellulose-based material and to a method of manufacturing thereof. The invention further relates to multilayer packaging materials intended for liquid carton food packaging, and to both general and liquid carton packaging containers comprising the heat-sealable, substantially plant-based and re-pulpable multilayer packaging material.

Method for manufacturing a housing for mounting a semiconductor element by using a forming tool with an upper tool and a lower tool, wherein the housing for mounting a semiconductor element comprises a substrate having a mounting surface for mounting a semiconductor element, and an encapsulation body formed from a cured product of a curable resin and having a frame-shaped section surrounding the mounting surface, and wherein the housing has a concave section formed by the mounting surface and the encapsulation body, and the method for manufacturing a housing for mounting a semiconductor element comprises: a step of arranging a mold release film, having a substantially constant thickness across the film, on the upper tool, which has a convex section whose shape corresponds to the concave section, arranging the substrate on the lower tool, and closing the upper and lower tools so that the convex section is in close contact with the mounting section of the substrate by means of the mold release film, a step of filling a space formed between the upper tool and the lower tool with a curable resin, whereupon the curable resin is cured, and a step of separating a cured product of the curable resin together with the substrate from the mold tool, wherein the mold release film comprises a first layer, which is intended to be in contact with the curable resin at the time of curing of the curable resin, and a second layer, the first layer has a thickness of 3 to 25 µm and furthermore has a tensile energy storage modulus at 180 °C of 10 to 40 MPa and the second layer has a product of the tensile energy storage modulus (MPa) at 180 °C and a thickness (µm) of 2000 to 13000.

The present invention is directed to sheet material comprising at least a first layer, a second layer, and a third layer, wherein the first layer is arranged in between the second layer and the third layer, wherein the first layer consists of a first material, the first material comprising at least 50 wt% of a functional component based on the weight of the first material, the functional component consisting of one or more water-soluble polymers and / or one or more water-swellable polymers, such that the first layer is a water-soluble layer or a water-disintegrating layer; and wherein the first layer comprises a transmission haze ≥ 1.5 % determined according to ASTM D 1003, and / or the first material comprises a coloring agent. Furthermore, the invention is directed to a packaging container or flexible composite comprising the above sheet material. Additionally, the present invention is directed to a method for recycling the above sheet material, the above packaging container, or the above flexible composite, comprising the steps of: - shredding the sheet material, the packaging container, or the flexible composite to flakes, granulates and / or a powder, - exposing the flakes, granulates and / or or powder to an aqueous washing solution; - separating solid components from the aqueous washing solution.

The invention discloses an antibacterial food composite bag and a preparation method thereof, and relates to the technical field of food packaging. The antibacterial food composite bag at least comprises a polyethylene glycol terephthalate outer layer, an aluminum foil middle layer and an antibacterial polyethylene inner layer, the antibacterial polyethylene inner layer comprises the following raw materials in parts by mass: 100 parts of low-density polyethylene, 6-8 parts of a modified halloysite loaded origanum vulgare essential oil antibacterial agent, 1-3 parts of a silver-carbon dot composite antibacterial agent and 5-15 parts of low-density polyethylene grafted acrylic acid; 0.5 to 1.5 parts of an antioxidant; and 0.1 to 0.3 part of an initiator. The modified halloysite loaded origanum vulgare essential oil antibacterial agent and the silver-carbon dot composite antibacterial agent are compounded for use, so that the prepared antibacterial food composite bag has the advantages of wide antibacterial spectrum and long time efficiency, and the shelf life of food can be prolonged.

The present invention relates to a barrier paper or barrier film for a food or liquid packaging laminate, said barrier paper or barrier film comprising: a substrate layer comprising a highly refined cellulose composition comprising fibers obtained from used beverage cartons (UBC), and a polymeric gas barrier coating disposed on at least one side of the substrate layer.

In an embodiment, a package enclosure can include a first creped paper packaging material and a second creped paper packaging material. The first creped paper packaging material can include a first single-layer creped packaging paper. The second creped paper packaging material can include a second single-layer creped packaging paper. The first creped paper packaging material and the second creped paper packaging material can define a respective material perimeter, with the second creped paper packaging material being attached to the first creped paper packaging material proximal their respective material perimeters to form a set of bound borders. The first creped paper packaging material and the second creped paper packaging material can thereby be attached together in a manner to define a package enclosure. The materials used for the package enclosure may be referred to as a package material combination.

Provided is a multilayer stretched film having an excellent balance of gloss, stiffness, vertical tear strength and sagging, and excellent recyclability. The multilayer stretched film is obtained by combining five layers made from ethylene-based polymers that are different in melt flow rate and density. Also provided is a laminate in which a multilayer stretched film used as a substrate, and for example, other plastic films, metal foils such as an aluminum foil, paper, and cellophane are laminated.

A laminate including at least a first resin layer and a second resin layer, wherein the first resin layer is provided so as to be separable from the second resin layer, and the separation strength between the first resin layer and the second resin layer is 1.0 N / 15 mm width or less and satisfies the following requirements (1) and / or (2): (1) the second resin layer is a sealant layer including at least a polyethylene layer with a density of 0.909 g / cm3 or less, and the polyethylene layer in the second resin layer is in contact with the first resin layer, and / or (2) the second resin layer is a sealant layer containing a polyolefin as a main component and has a polyolefin content of 82% by mass or more based on a mass of the second resin layer.

The present invention relates to a laminated packaging material (10) for packaging of oxygen sensitive food products, and to a method for manufacturing thereof. The invention further relates to packaging containers comprising the laminated packaging material, for packaging of oxygen-sensitive products, such as food products.

According to an example aspect of the present invention, there is provided a method comprising: in a mould, forming a multi-layered foamed fibrous structure from foamed fibrous compositions, wherein each of the foamed fibrous compositions comprises cellulosic fibres, water, air, and at least one foaming agent; dewatering the foamed fibrous structure; hot-pressing the dewatered structure, to obtain a moulded fibrous product, wherein said at least one foaming agent comprises at least one surface-active foaming agent and / or at least one polymeric foaming agent, and wherein at least one of the foamed fibrous compositions comprises a hydrophobic agent.

The invention relates to the technical field of food preservation, in particular to a double-layer fiber membrane for food preservation and a preparation method and application of the double-layer fiber membrane. The first layer of the double-layer fiber membrane for food preservation is composed of sericin / pullulan, and the second layer is a polylactic acid-based membrane doped with FA-coated Ag-ZIF-8 nanoparticles. The double-layer fiber membrane realizes high selectivity to oxygen and carbon dioxide, realizes regulation and control of microenvironment gas atmosphere, and inhibits respiration, so that an excellent fresh-keeping effect is achieved. The double-layer fiber membrane has antibacterial and antioxidant functions, and can inhibit oxidative degradation and microbial contamination of perishable fruits. According to the technology, dual mechanisms of gas regulation and control and biological protection are integrated, an innovative scheme is provided for solving the rotting problem of perishable fruits, and the technology shows important potential in the aspects of promoting development of a food fresh-keeping technology and optimizing a sustainable packaging scheme.

The invention discloses a two-piece type sealing gasket which comprises a backing layer, a weak adhesive layer and an adhesive sealing composite layer which are sequentially arranged from top to bottom. The backing layer is a paperboard or a foam board film; the adhesive sealing composite layer comprises an electromagnetic induction heating layer and an adhesive sealing layer which are sequentially arranged from top to bottom; the weak adhesive layer is located between the backing layer and the adhesive sealing composite layer, and the weak adhesive layer enables the peel strength between the backing layer and the adhesive sealing composite layer to be more than 0.05 N / 15mm and less than 2.26 N / 15mm. According to the invention, the backing layer and the adhesive sealing composite layer can be easily separated.

A multilayer, monoaxially stretched, recyclable film (1) for a laminate (7). The film (1) has outer layers (3) and at least one inner barrier layer (6), with a tie layer (5) arranged between each of these. At least one further, functional intermediate layer (4) is arranged between each of the outer layers (3) and the barrier layer (6).

Embodiments of the present disclosure provide an anti-leakage paper container, comprising a container wall and a container bottom. A lower end of the container wall is connected with the container bottom. The container wall is composed of a connecting cardboard. The connecting cardboard includes a first side and a second side. The first side and the second side lap each other to form a cylinder, and the first side is located on an inner side of the cylinder. An inner surface and an outer surface of the container wall and an inner surface and an outer surface of the container bottom are equipped with a lamination layer, respectively. The first side is provided with a film wrapping edge, and the first side is wrapped within the film wrapping edge.

According to an example aspect of the present invention, there is provided a method comprising: in a mould, forming a multi-layered foamed fibrous structure from foamed fibrous compositions, wherein each of the foamed fibrous compositions comprises cellulosic fibres, water, air and a foaming agent; dewatering the foamed fibrous structure; hot-pressing the dewatered structure, to obtain a moulded multi-layered fibrous product, in which method at least two different foaming agents are applied, wherein said at least two different foaming agents are selected, independently from each other, from the group of surface-active foaming agents and polymeric foaming agents.

This invention provides a sealing structure for a double-layer paper cup, belonging to the field of paper cup technology. It solves the strength problem of double-layer paper cups. This sealing structure includes an inner cup layer and an outer cup layer. The inner cup layer is thicker than the outer cup layer, and the outer cup layer is bonded to the outer circumferential surface of the inner cup layer. When unfolded, the inner and outer cup layers form a fan shape, with the fan shape length of the inner cup layer being greater than that of the outer cup layer. This ensures that the first end of the outer cup layer does not cover the edge of the first end of the inner cup layer. The edge of the outer cup layer not covered by the first end of the inner cup layer is the sealing area. When the sealing area overlaps the inner side of the inner cup layer and forms a sealed bond, the first end of the outer cup layer, the second end of the outer cup layer, the second end of the inner cup layer, and the first end of the inner cup layer form at least three overlapping sealing areas. The sealing area near the upper edge of the cup is compressed to form a rolled-up area with a thickness less than the other sealing areas. Part of the rolled-up area forms a rolled edge. This solution creates a structure with enhanced strength through the inner sealing and the compressed rolled-up area.

The present invention relates to oriented, multilayer polyethylene films. In one aspect, a biaxially oriented, multilayer polyethylene film comprises: at least one inner layer comprising: (1) a polyethylene-based composition that comprises: (a) at least 97% by weight, based on the total weight of the polyethylene-based composition, of one or more polyethylenes having a density between 0.926 g / cm3 to 0.970 g / cm3 and a melt index (I2) between 0.1 to 10 g / 10 min; (b) 20 to 5000 ppm, based on the total weight of the polyethylene-based composition of a sorbitol acetal derivative comprising the structure of formula (I): wherein R1-R5 comprise the same or different moieties chosen from hydrogen and a C1-C3 alkyl.