46results about "Wrappers" patented technology

An assembly comprised of a case for protecting a mobile wireless phone with a retractable headset device installed in an integral pocket. Openings in the case are provided for extending a connector cable that is plugged into the wireless phone, and for retractably extracting an earphone segment. The earphone cable segment is extracted for use when using the wireless phone in a hands-free scenario, and retracted when the assembly is to be stored.

The present invention relates to a lithium cell flexible package film and its production method. It is composed of 7 layers of base layer, adhesive resin layer, chemical conversion treatment layer, aluminium foil layer, chemical conversion treatment layer, adhesive resin layer and thermal sealing layer, in which the thermal sealing layer is multi-layer coextrusion structure, and is formed from at least two layers of resin, in which at least one layer is polyethylene resin, and at least one layer is polypropylene resin. Said invention also provides the concrete steps of its production method.

Herein is disclosed a modified ethylene vinyl alcohol polymer (EVOH) comprising an oxygen scavenging functional group. Preferably, the modified EVOH comprises structures IV, V, and VI:

wherein x is an integer greater than or equal to 1, y is an integer greater than or equal to 1, z is an integer greater than or equal to 1, and R comprises a cycloalkenyl group.

The modified EVOH is useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article.

Also disclosed are methods of modifying ethylene vinyl alcohol polymers, and using the modified EVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.

The invention discloses a polyvinyl alcohol/xylan biodegradable composite membrane and a preparation method and an application thereof. The preparation method comprises the following steps: adding polyvinyl alcohol into water, dissolving for 1-4 hours at a temperature of 80-100 DEG C, adding and uniformly mixing xylan and citric acid and controlling the mass ratio of the xylan to the citric acid to be 1:1-4:1; and agitating obtained mixed solution for 2-6 hours at a temperature of 50-80 DEG C, standing, casting on a horizontally-arranged clean polyfluortetraethylene plate and vacuum-drying to obtain the polyvinyl alcohol/xylan biodegradable composite membrane. The polyvinyl alcohol/xylan biodegradable composite membrane and the preparation method and the application thereof have the benefits that the composite membrane has a tensile strength of 7.58-37.42 MPa and an elongation at break of 13.67-249.50 percent; the process is simple, the reaction conditions are easy to control, no environmental pollution is generated in the production process, and the industrialization is easy; and the composite membrane is innocuous, has good biodegradability and higher strength and can be applied to food packaging materials.

The invention relates to the technical field of edible packaging bags, and especially relates to an edible instant flour bag packaging film and a preparation method thereof. The packaging film comprises 6.25-98.04% of starch, 0.66-90.09% of glycerin, and 0.50-81.97% of sodium carboxymethylcellulose or sodium alginate. The preparation method comprises the following steps: adding the above formula amount of starch to a proper amount of deionized water to obtain a starch paste; adding the above formula amounts of glycerin which is dissolved beforehand and sodium carboxymethylcellulose or sodium alginate to the starch paste, and adding deionized water to a constant volume for gelatinization; and carrying out casting coating of gelatinized starch, carrying out forced air drying, and uncovering the obtained film. The packaging film has the advantages of good mechanicalness, good oil resistance, good heat sealability, good ageing resistance, harmlessness to the health of a human body, environmental pollution reduction, abundant sources of raw materials, low production cost, simple technological process, and low energy consumption, can realize the large-scale production, and satisfies market demands.

A double controllable releasing fruit and vegetable fresh-keep paper consists of three layers of paper-plastics composite materials or two layers of paper-plastics composite materials and a layer of base paper and two kinds of different controllable releasing preservatives, wherein, the different preservatives are respectively arranged in the centers of two sandwiches formed by the three layers of paper-plastics composite materials or the two layers of paper-plastics composite materials and the layer of base paper, and the preservatives in the sandwiches are distributed in a discontinuous grid shape. The aim of creating an optimum anticorrosion sterilization storage preservation environment can be achieved by selecting species of effective components of preservatives, changing a speed of controlling and releasing the formulas of the preservatives, adjusting indexes of ventilating and moisture permeability of the fresh-keep paper structure material, thereby greatly prolonging the transporting preservation period of a preserved product and improving the quality of the product, and improving economic benefit of transportation and preservation. The controllable releasing fruit and vegetable fresh-keep paper can fulfill transportation and preservation requirements of most varieties of the prior fruits and vegetables through omnidirectional and multivariate regulation, and provides very high application value in static preservation.

A bow cam cover for protecting a cam of a bow comprising: an outer surface; an opening, where the opening allows for the insertion of the cam; a top drawstring within a drawstring cover, where the drawstring cover extends around a perimeter of the opening; and a bottom drawstring extending from the outer surface. A low cut may be provided at a front portion of the perimeter. The top drawstring may include an adjustment tab, where the tab enables the adjustment of the top drawstring. The bottom drawstring may include a string adjustment to adjust the length of the bottom drawstring.

A fully enclosed pack is provided with a gusset that is capable of being formed from a blank without the use of tucker fingers. Nicks are provided between the side end panel and tuck-in panels of the carton. As the side end panels are folded, the nicks help pull the tuck-in panels inwardly to allow the gusset of the carton to take form without the use of tucker fingers in a folding/gluing operation.

A closure arrangement for a reclosable polymeric bag is disclosed, the closure arrangement comprising convex and concave areas that facilitate opening the bag. To initially open the bag, first and second films are separated from each other by tearing perforations. Next, interlocked closure profiles are detached from each other by grabbing onto gripper ridges and pulling the opening of the bag apart. If the first or second film becomes tucked into the groove left by the perforations such that the gripper ridges are difficult to access even after tearing the perforations, then the end of the opening may be flexed up or down, thereby causing separation of the convex area and concave area to provide access to the gripper ridges.

The invention discloses a biaxial stretching polypropylene high heat-seal film and a manufacturing method thereof; aiming at the problem of low strength of current biaxial stretching polypropylene heat-sealable films, the manufacturing method of the invention prepares the biaxial stretching polypropylene high heat-seal film by adding ethylene-acrylate copolymer into various layers and controlling the thickness of heat-seal layers, that is an upper layer and a lower layer, to be within 2-5 microns; the biaxial stretching polypropylene high heat-seal film of the invention has a heat-seal strength value of 9-15N/15 mm under a condition with a heat-seal temperature of 130 DEG C and heat-seal time of 0.3 second, can reach requirements of food package, and also has good physical mechanical properties.

A car cover comprises a cover body with a second cover. A car-bottom soft sheet with built-in fitments is fixedly connected to the front-end of the cover body. The cover body has a number of cover built-in fitments corresponding to the built-in fitments of the car-bottom soft sheet. The cover body has a sleeve with a soft strip. The two ends of the soft strip are removably fixed to the two ends of car-bottom soft sheet.

The present invention relates to a package made from biodegradable polymeric flexible film for packaging fresh produce. The package includes at least a pair of opposite panels configured to form a receptacle. The package comprises plurality of apertures which are configured to provide a modified atmosphere packaging (MAP) for the fresh produce. The said film of package in conjunction with MAP facilitates humidity exchange through the polymeric structure of the film and controlled exchange of oxygen, carbon dioxide and other gases suitable for fresh produce, inside the package.

The invention discloses a preparation method of a degradable foam packing material. The preparation method comprises the following steps: 1) rubbing straw to prepare straw fibers; 2) adding 50-54 parts of straw fibers, appropriate amount of water, and 6-8 parts of a plant fiber modifier in a mixer for dispersing uniformly; 3) putting 42-46 parts of corn starch, 6-8 parts of silicon oxide powder, 12-14 parts of talcum powder and 6-8 parts of powdered aluminum into the mixer, heating to 60-70 DEG C, mixing uniformly to prepare a pasty material; 4) adding 200-210 parts of a 4-6% sodium hydroxide solution, and stirring at the same time; 5) coating the wall surface of a mold with 2-4 parts of an organic silicon releasing agent, filling the mold with the mixed slurry, continuously foaming and expanding for 16-18 minutes at the temperature of 125-135 DEGC; 6) drying at 100-110 DEG C to release the mold,so that the finished packing material is obtained.

The invention provides a preparation method of a compound aluminum paper and aluminum plastic compound film packaging material with a hydrophobic surface. The method includes the steps that small balls with the diameter being 0.01-50 microns are uniformly dispersed in a liquid tackiness agent to prepare a coating liquid, the surfaces of paper and a plastic film are uniformly coated with a layer of the small balls with the diameter being 0.01-50 microns, after solidification is completed, the small balls are attached to the surface of the paper or the plastic film, and a micro-nano rough surface structure is formed; a layer of aluminum is deposited on the surface of the small ball layer through a vacuum evaporation or a magnetron sputtering method or the film material is compounded with aluminum foil; a compound aluminum paper or aluminum plastic compound film is formed; the aluminum layer of the compound aluminum paper or aluminum plastic compound film has hydrophobic performance after the compound film is placed in an oxygen-enriched environment for 7-10 days, the water contact angle is larger than 140 degrees, and the water rolling angle is smaller than 10 degrees; and the compound aluminum paper or aluminum plastic compound film is used as the packaging material for liquid materials or paste materials, the packaged liquid and paste materials are taken out of the package easily, and the adhesion amount of the packaged liquid or paste materials on the aluminum layer surface is small.

The invention discloses a medical packaging film which sequentially comprises a printing layer, a mixed functional polyethylene layer, an aluminum foil layer and a heat sealing layer from exterior to interior. Compared with the prior art, the medical packaging film disclosed by the invention does not use an adhesive, thereby reducing the residuals of a solvent and reducing the pollution on medicines and the environment; simultaneously, the separation performance and the cost control are combined; the medical packaging film has the advantages of good separation effect and long quality guarantee period; the cost is reduced by 15-30%; resources are saved; and the heat sealing temperature can be controlled to be 100-110 DEG C.

Disclosed are a coldly-stamped formed composite hard plate and a production process. The coldly-stamped formed composite hard plate is formed by stamping a polyamide film/composite glue/aluminum substrate/composite glue/polyvinyl chloride hard plate in a cold manner, and is characterized in that base coating is painted on the surface of an aluminum substrate and is bi-component chemical materials composed of closed polyisocyanates and polyester-epoxy block co-polymer, the aluminum substrate is fed into a drying tank consisting of 4-6 drying boxes to dry, is cooled by the air after drying and is wound by a coating machine after being subjected to cooling by an S-shaped water cooling roller, and the wound aluminum substrate is cured by being disposed in a curing chamber with the temperature of 50 DEG C for 2 days. The composite glue is coated among the wound aluminum substrate cut according to the conventional process and the polyamide film and the polyvinyl chloride hard plate, and the wound aluminum substrate, the polyamide film and the polyvinyl chloride hard plate are composited and formed in a cold stamping manner by a dry type compositing machine. Compositing firmness between the polyamide film and the aluminum substrate is enhanced, and the defects of cracking and layering of the composite hard plate materials due to cold stamping are overcome.

The invention discloses an alkaloid compound. The alkaloid compound is chemically named as 8-hydroxy-3-hydroxymethyl-6,9-dimethyl-7H-benzo[de]isoquinoline-7-one and has a chemical formula C15H13NO3 and the structure shown in the specification. The invention further discloses a method for preparing the alkaloid compound from tobaccos. The invention further discloses use of the alkaloid compound. Activity tests prove that the alkaloid compound has a relatively good bacteriostatic action. The alkaloid compound is of a novel structure and has relatively good antibacterial activity. By applying the alkaloid compound to tipping paper of cigarettes, the possibilities of breeding and reproduction of bacteria in the tipping paper of the cigarettes can be eliminated or reduced.

A method and apparatus for blocking a bar code in a package includes a carrier with a plurality of apertures. The carrier is formed with a plastic material containing an absorbing dye and a fluorescing dye so that a bar code on each container is not readable by a bar code scanner.

Technical Problem

A problem of the present invention is, in one aspect, to provide a capsule formulation including an active ingredient and the like that may deteriorate upon contacting an acid, wherein the capsule formulation makes it possible not to deteriorate the active ingredient and the like by a gastric acid which enters into a capsule film.

Technical Solution

A capsule formulation comprising an active ingredient and oil, wherein said capsule of said formulation is an enteric capsule comprising a water soluble film forming polymer and gellan gum; said oil is an oil acceptable for pharmaceuticals or foods; and said active ingredient is encapsulated in said capsule together with said oil, and the production method thereof, are provided.

The invention discloses a high-barrier composite membrane applied to a thermal baffle. The composite membrane is formed by heat sealing of a first VMPET thin film layer, a VMPET12 thin film layer, a second VMPET thin film layer and a PE heat sealing layer in sequence, wherein the first VMPET thin film layer is 10-14 micrometers in thickness, the VMPET12 thin film layer is 12 micrometers in thickness, the second VMPET thin film layer is 10-14 micrometers in thickness, and the PE heat sealing layer is 40-80 micrometers in thickness. The PET heat sealing layer, the first VMPET thin film layer or the PE heat sealing layer is provided with laser anti-counterfeit lines. A packaging film provided by the invention is formed by heat sealing of the first VMPET thin film layer, the VMPET12 thin film layer, the second VMPET thin film layer and the PE heat sealing layer in sequence, thus not only having good thermal insulating performance, but also having the performances of light shading, prevention of ultraviolet irradiation and the like.

The invention discloses an antistatic shielding aluminum-plastic composite packaging material. The antistatic shielding aluminum-plastic composite packaging material is provided with an outer protective layer, an outer adhesive layer, an antistatic coating, an aluminum foil layer, an outer adhesive layer A, a nylon film, an outer adhesive layer B and a heat seal layer which are sequentially arranged from the outside to the inside. The antistatic coating is prepared from, by weight, 42-55 parts of synthetic acrylic resin, 50-60 parts of epoxy resin, 20-35 parts of diatomaceous earth, 20-28 parts of graphite with the purity being 99% or over, 0.5-1.3 parts of a dispersing agent, 2-4 parts of a defoaming agent, and 3-5 parts of thickener. With additional arrangement of the antistatic coating,double-layer anti-static measures can improve the capacity of anti-static shielding; a foaming machine is used for foaming, and obtained composite foaming slurry coats the anti-static coating as a protective layer, and can well buffer impact and puncture from the outside; and the nylon film on the inner side can avoid damage to the aluminum foil layer caused by objects on the inner side.

A film bag has a front and back panel and an inner cover patch therebetween. A continuous frame weld secures the inner cover patch to the inner face of the front panel. A first cut or weakening line in the front panel within an area bounded by the frame weld defines all but one side of a flap hinged at the one side to the front panel. A reclosable fastener is between the front face of the patch and the inner face of front panel, and a direct attachment between the fastener and the hinge is between the front face of the flap to the inner face of the front panel. A second cut or weakening line is formed in the inner cover patch between the direct attachment to the flap and the recloseable fastener.

The invention relates to a multi-layer superposed composite material and a preparation method and application thereof. The multi-layer superposed composite material is prepared by the steps: carrying out mold pressing or extrusion molding on polymethyl ethylene carbonate (PPC)/nano microcrystalline cellulose (CNC), PPC/modified starch (TPS) and a PPC/modified TPS/CNC composite material prepared by melting, into a sheet material, cutting and alternately superposing; and then preparing the multi-layer PPC/modified TPS/CNC composite material with more excellent barrier property and mechanical property by a hot press molding method. The mechanical strength of the full-biodegradable PPC/modified TPS/CNC composite material can be improved through a multi-layer composite superposition molding technology, the shape recovery rate of the material is improved, the water vapor barrier rate of the material is reduced, and the application field is widened. Solvent treatment is not needed in the preparation process, and environmental pollution is avoided.

The invention belongs to the technical field of food packaging, and particularly relates to a preparation method of an environment-friendly food packaging material. The environment-friendly food packaging material is processed from pure natural materials, the preparation process is simple, and the prepared packaging material is long in service life, uniform, firm in structure, low in cost, capable of being completely biodegraded, free of environmental pollution, is easy to industrially produce on a large scale, has an antiviral function and can prevent virus transmission, the degradation speed of the degradable packaging material is higher than that of an existing food-grade degradable packaging material, the dissolution speed in water is less than 12 hours, and the material is pure natural, non-toxic and harmless and does not cause pollution to a water source.

The present invention pertains to the art of packing materials. The present invention provides a thermally-insulating and compostable packing product made of a compostable thin-film material forming an enclosed envelope filled with compressed corn-starch. The packing product of the present invention may be folded and positioned within a container to physically and thermally insulate or isolate an item for shipping within the container.