2317results about "Domestic packaging" patented technology

The invention relates to the technical field of high-barrier environment-friendly packaging films, and discloses a high-barrier environment-friendly packaging film with an antibacterial function, the high-barrier environment-friendly packaging film comprises a base layer, a nano composite barrier layer, a bio-based functional layer and an outer protective layer from bottom to top in sequence, and the layers are tightly attached through a coated starch-based adhesive. According to the high-barrier environment-friendly packaging film with the antibacterial function, good biodegradability of polyhydroxyalkanoate adopted in the base layer film, polycaprolactone which is adopted in the nano-composite barrier layer film and has a biodegradable function and konjac glucomannan in the biological functional layer film are utilized; the composite packaging film can be decomposed into carbon dioxide and water by microorganisms in various environments, has excellent flexibility and processability, can adapt to different packaging requirements, provides basic flexibility, structural support and green and environment-friendly effects for the whole packaging film, and has a wide application prospect. The procyanidine arranged in the outer protective layer film provides stronger antibacterial property and water solubility for the whole packaging film.

A laminated polypropylene-based film suitable for retort packaging having an exterior film, a barrier layer, and a sealing layer. The retort packaging film has a total composition including high levels of polyolefin-based polymers and polypropylene-based polymers such that the material can be processed efficiently in a polypropylene recycling process. Advantageously, the film retains the properties required to suitably withstand the retort process and produce a high-quality shelf-stable packaged product.

The present invention is directed to a capsule (1) for beverage preparation, comprising a cup-shaped body (2) of moulded cellulose pulp and a closing membrane (5) attached to a peripheral rim (4) of said body (2). The capsule further comprises a multilayer polymeric liner (3) attached to the inner surface of the cellulose pulp body (2), said liner comprising: (i) an outermost polymeric layer (7), (ii) a first tie layer (8), (iii) a barrier layer (9), (iv) a second tie layer (10), (v) an innermost polymeric layer (11), In which liner, - the thickness of the outermost layer (7) and the thickness of the innermost layer (11) are comprised between 10 and 100 pm and are preferably identical; - the elongation at break of the outermost layer (7) is higher than the elongation at break of the innermost layer (11); - The melt flow rate (MFR) of the outermost layer (7) measured at 150°C during 10 minutes with a pressure of 2.16 kg, is lower than the melt flow rate (MFR) of the innermost layer (11), measured at 190°C during 10 minutes with a pressure of 2.16 kg; - The melting point temperature of the outermost layer (7) is lower than the melting point temperature of the innermost layer (11), and in which, the outermost layer serves as an adhesive to the cellulose pulp of the capsule body.

A flexible package having an inner sheet having a first surface and a second surface. The flexible package has an article reservoir for accepting an article to be shipped and one or more expansion chambers. The expansion chambers can be inflated or otherwise expanded to provide structure to the flexible package and to protect the article in the article reservoir.

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 paper-based composite film, which adopts a four-layer structural design, and the outer layer is an ultraviolet shielding layer formed by coating TiO2 with lignin; the transition layer is composed of 32-64 PLA / PBAT alternating microlayers, and the multiple alternating transition layers form a zigzag gas barrier path; ag-coated ZIF-8 nanoparticles are loaded on the paper base layer, so that long-acting antibiosis is realized by slowly releasing silver ions; and the inner layer adopts a PPC / PBS blend to support the heat sealing layer with adjustable heat sealing strength. According to the preparation process, a gradient micro-layer structure is constructed through a multi-runner co-extrusion die head and a layer multiplier, silver ions are loaded to ZIF-8 through an ultrasonic-vacuum impregnation process, the hydroxyl density of the surface of the paper base layer is improved through plasma treatment, good interlayer strength is achieved, ester bond crosslinking is induced in a pre-irradiation mode, and the product is prepared. The paper-based composite film has ultraviolet shielding, gradient blocking, slow-release antibacterial and controllable heat sealing performance, the interface bonding strength of a traditional paper-based composite film is greatly improved, all components are biodegradable, and the paper-based composite film is suitable for packaging of food, medicine and the like.

An object of the invention is to provide a resin laminate for packaging material containing a base layer and a sealant layer each of which contains the same material with high processability. The resin laminate for packaging material contains at least a base layer and a sealant layer, wherein each of resin compositions for the base layer and the sealant layer contains the same resin (A) as a main component, the base layer has a fusion initiation temperature (FIT-B), and the sealant layer has a seal strength reaching temperature (SRT-S), wherein the temperatures satisfy the following inequalities of from (1) to (3):50° C.≤(FIT-B)−(SRT-S)≤90° C.  Inequality (1)90° C.≤(SRT-S)≤120° C.  Inequality (2)160° C.≤(FIT-B)≤180° C.  Inequality (3).

The invention discloses a recoverable high-barrier-property multilayer composite film and a preparation method thereof. The composite film adopts a five-layer symmetrical structure, namely a heat sealing layer, a first bonding layer, a blocking layer, a second bonding layer and a surface protection layer. Wherein the barrier layer is a montmorillonite modified ethylene-vinyl alcohol copolymer, and montmorillonite is modified by a carboxyl functionalized ammonium bromide intercalator; the bonding layer is maleic anhydride grafted polylactic acid; the heat sealing layer contains modified composite filler; the surface protection layer is a polyethylene / graphene modified coupling agent composite system. The preparation method comprises the steps of intercalation modified montmorillonite preparation, barrier layer material melt blending, five-layer co-extrusion casting, gradient hot pressing and curing treatment. The problems that a traditional high-barrier film is unrecyclable, the interlayer binding force is weak and the high-temperature stability is poor are solved, the ultrahigh barrier performance that the oxygen transmission rate is smaller than or equal to 0.5 cm < 3 > / (m < 2 >. 24 h) and the water vapor transmission rate is smaller than or equal to 1.0 g / (m < 2 >. 24 h) is achieved, and the mechanical property retention rate is larger than or equal to 85% after recycling and re-pelletizing.

A dry drug delivery system comprising a middle layer encased in two outer layers, the middle layer and the two outer layers each comprising a mixture of electrospun fibers. Also disclosed is a water-dissolvable dry device containing a physical mixture of a first fiber and a second fiber in which the first fiber and the second fiber are configured to react with each other and with a biological tissue upon hydration, and the device transforms into a hydrogel upon contact with the biological tissue. Further provided is a method for delivering a bioactive substance to a soft tissue using the system or device.

Example aspects of a cushioned sheet, a cushioned mailer, and a method of forming a cushioned sheet are disclosed. The cushioned sheet can comprise a first layer comprising a first base and a plurality of first sockets extending from the first base, each of the first sockets spaced apart from adjacent ones of the first sockets; a second layer coupled to the first layer by an adhesive, the second layer comprising a second base and a plurality of second sockets extending from the second base, each of the second sockets aligned with a corresponding one of the first sockets to define a void therebetween; and a plurality of cushioning inserts, each of the plurality cushioning inserts substantially spherical in shape and received in a corresponding one of the voids.

The invention relates to a damp-proof multifunctional air bubble film packaging bag which comprises a first air bubble film and a second air bubble film which are oppositely arranged, the first air bubble film and the second air bubble film comprise the first air bubble film and the second air bubble film which are oppositely arranged, and the three edges of the first air bubble film and the three edges of the second air bubble film are connected with edge sealing layers in a sealed mode. A top sealing structure is arranged on the outer surfaces of the upper ends of the first air bubble film and the second air bubble film, a fixing strip is fixedly connected to the inner surface of the front end of the top sealing structure, and the top sealing structure comprises a second sealing strip and a first sealing strip. The packaging bag has the beneficial effects that many defects of a traditional packaging bag in the aspects of moisture resistance and sealing performance are effectively overcome, the packaging bag has excellent physical protection performance and functional characteristics through the design of the six-layer functional composite film structure, the durability of the packaging bag is greatly improved through the arrangement of the anti-abrasion layer, and the effect that damage caused by friction in the transportation process is avoided.

A medical package is made from a multi-layer film and is filled with a medical liquid for infusion and / or for parenteral nutrition. The medical package has at least one weld seam and at least one inner layer of a matrix-phase polymer system, an intermediate layer of a matrix-phase polymer system, and an outer layer of a matrix-phase polymer system.

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 lap-sealable film comprises a non-oriented film, a heat-resistant lacquer (HRL), and a sealing layer. The non-oriented film comprises a first outer layer and a second outer layer. The first outer layer comprises a first polymeric blend having a low density polyethylene (LDPE) and an ethylene copolymer. The second outer layer comprises a non-oriented high density polyethylene (HDPE). The HRL is attached to the first outer layer and is coextensive with less than 100%, by area, of the exterior surface of the first outer layer. The sealing layer comprises an ethylene copolymer or a second polymeric blend having a LDPE and an ethylene copolymer. The ethylene copolymer has a density less than or equal to 0.92 g / cm3. The first polymeric blend has a seal initiation temperature less than or equal to 110°C. The lap-sealable film comprises a total composition having greater than or equal to 80% polyethylene.

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 preparation method of a high-barrier aluminum oxide composite film for food packaging, and relates to the technical field of food packaging materials. The high-barrier aluminum oxide composite film for food packaging comprises the following raw materials in parts by weight: a barrier layer: 60-90 parts of modified nano aluminum oxide and 20-30 parts of a silane coupling agent KH-560; the functional layer is prepared from the following components in parts by weight: 18 to 28 parts of nano silver, 16 to 22 parts of compound antioxidant and 4 to 10 parts of nano titanium dioxide; the heat sealing layer is prepared from 22 to 32 parts of modified polylactic acid, 2 to 6 parts of graphene quantum dots, 12 to 16 parts of methyl methacrylate-butadiene-styrene copolymer, 3 to 6 parts of dodecyl trimethyl ammonium chloride, 10 to 14 parts of resorcinol tetraphenyl diphosphate and 7 to 17 parts of stearic acid intercalation modified nano montmorillonite. The high-barrier aluminum oxide composite film for food packaging is prepared by modifying nano aluminum oxide and polylactic acid, the barrier ability to gas, water vapor and ultraviolet rays is greatly improved, and the high-barrier aluminum oxide composite film is oil-resistant and antistatic. The product is high in mechanical strength, high in processing adaptability, capable of adapting to complex scenes, environment-friendly and safe.

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 packaging bag including a polyester-based multilayer film. The multilayer film includes at least: an innermost layer formed of a biaxially stretched polyethylene terephthalate film; a layer formed of polybutylene terephthalate; and / or a layer formed of a blend of polyethylene terephthalate and polybutylene terephthalate. The biaxially stretched polyethylene terephthalate film has a heat sealing portion that is amorphized or low-crystallized by laser light irradiation. The packaging bag is formed by allowing the innermost layers of the polyester-based multilayer film to be opposed to and superimposed on each other, and heat sealing the heat sealing portions.

The invention relates to the technical field of packaging materials, in particular to a PE composite film for manufacturing a packaging bag and a preparation method of the PE composite film. The PE composite film comprises a lower antibacterial PE layer, a middle barrier PE layer and an upper antibacterial PE layer; the lower antibacterial PE layer is prepared from the following raw materials: low-density polyethylene, linear density polyethylene, an antibacterial functional agent, a tensile functional agent and an auxiliary agent; the middle barrier PE layer is prepared from the following raw materials: linear low-density polyethylene, metallocene low-density polyethylene, a tensile functional agent and an auxiliary agent; the upper antibacterial PE layer is prepared from the following raw materials: linear low-density polyethylene, metallocene low-density polyethylene, an antibacterial functional agent and an auxiliary agent, and the PE composite film for manufacturing the packaging bag, prepared by the invention, has excellent antibacterial property and excellent tensile mechanical property; the requirements on antibacterial property and tensile property in the field of packaging materials can be met.

The invention relates to the technical field of polyethylene packaging films, and particularly discloses an antibacterial polyethylene composite packaging film and a preparation method thereof.The antibacterial polyethylene composite packaging film comprises an inner layer, a middle layer and an outer layer, the inner layer is prepared from the following raw materials in parts by weight: 60 to 80 parts of low-density polyethylene, 25 to 35 parts of polypropylene, 4 to 6 parts of modified filler, 0.3 to 0.6 part of antioxidant and 1 to 3 parts of compatilizer; the middle layer is prepared from 62 to 75 parts of high-density polyethylene, 28 to 40 parts of ethylene-vinyl alcohol copolymer, 0.8 to 1 part of anti-binding agent and 2 to 5 parts of compatilizer; the outer layer comprises 55-70 parts of high-density polyethylene, 35-45 parts of metallocene polyethylene, 12-25 parts of nylon, 4-10 parts of antibacterial modified montmorillonite and 3-6 parts of compatilizer, the polyethylene composite packaging film has good processability and good stability, the composite film adopts a double-layer antibacterial design of the inner layer and the outer layer, the middle layer has excellent barrier property and good compactness, and the polyethylene composite packaging film is suitable for being used as a packaging film. The composite packaging film has excellent antibacterial performance and mechanical performance and good comprehensive performance.

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.

The present application provides a method for preparing a high-barrier, degradable, and environmentally friendly packaging material, as well as packaging materials and packaging articles. The method includes transferring and bonding a prefabricated high-resistance layer composed of a water-based, easily peelable substrate layer, a coating layer, and a water-based porous coating layer onto a paper layer to produce a plastic-free, high-barrier, degradable, and environmentally friendly packaging material. The multi-film prefabricated high-resistance layer, composed of multiple layers such as a second coating layer and a second water-based porous coating layer, has ultra-high barrier properties. The present application can save more than 68% of vacuum pump energy consumption. The resulting high-barrier, degradable, and environmentally friendly packaging material and its packaging are degradable, pollution-free, and have ultra-high barrier properties.

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 generally relates to packaging systems embedded with adsorbent materials, more particularly, it relates to materials used in packaging of pharmaceuticals for actively adsorbing volatile compounds and moisture.

An insulated container may include a rigid container surrounding an insulation layer formed from a post-industrial, pre-consumer card waste. The insulation layer may be characterized by a lack of any wrapping material. The insulation layer may be manufactured using a variety of converting processes including, carding, airlay, and needle punch to form a non-woven material for providing consistent density throughout the insulation layer. The insulation layer may include a natural fiber lamination layer on an outer surface of the insulation layer. The insulation layer may be biodegradable in an anaerobic environment.

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.