42 results about "Packaging industry" patented technology

The invention belongs to the technical field of packaging materials, and particularly relates to a packaging material with antibacterial activity and a preparation method thereof. The packaging material with antibacterial activity is prepared from the following raw materials in parts by weight: 60 to 70 parts of polylactic acid, 10 to 20 parts of poly (butylene succinate), 3 to 5 parts of modified montmorillonite, 0.5 to 1 part of a bacteriostatic agent, 0.5 to 1 part of a lubricating agent, 1 to 3 parts of a compatilizer and 1 to 1.5 parts of functional filler. The packaging material provided by the invention has excellent barrier property, antibacterial property and mechanical property, stable fixation and synergistic interaction of functional components such as the modified montmorillonite and the functional filler are realized, and the packaging material has important significance in promoting technical progress of the packaging industry and meeting the requirements of the market on high-performance packaging materials.

The utility model relates to a pet trousers packaging machine which comprises a machine frame, a packaging bag forming device arranged on the inner side of the machine frame and a pet trousers forming and packaging device arranged on the inner side of the machine frame, and a clamping mechanism is arranged between the adjacent packaging bag forming device and the pet trousers forming and packaging device in a lifting mode. And the lifting device is used for holding the pet trousers output by the pet trousers forming and packaging device and then vertically lifting the pet trousers to a specified height. By means of the design, manual intervention is greatly reduced, labor cost is remarkably reduced, meanwhile, various problems caused by manual operation are effectively avoided, it is ensured that each piece of pet trousers can be accurately conveyed to a designated position without errors, a solid foundation is laid for subsequent perfect cooperation with a packaging bag, and the production efficiency is improved. And therefore, the packaging efficiency and the product quality are comprehensively improved, and the pet pants packaging industry is led to advance to a new automation height.

The invention relates to a PET material as well as a preparation method and application thereof. The PET material is prepared from the following components in parts by weight: 75 to 95 parts of PET resin, 2 to 10 parts of PCTG, 3 to 8 parts of flexibilizer, 2 to 5 parts of glass flake and 0.2 to 1 part of poly alkyl glycol dibenzoate. The toughening agent comprises an ethylene-methacrylic acid copolymer and / or ethylene-butyl acrylate. According to the PET material provided by the invention, the PET resin and the PCTG are taken as base materials, the ethylene-methacrylic acid copolymer and / or ethylene-butyl acrylate are / is taken as a toughening unit, the glass flakes are taken as a reinforcing framework, and the poly alkyl glycol dibenzoate is taken as a crystallization inhibitor, so that the PET material has good transparency through the design of all the components; meanwhile, the PET material has good strength and rigidity and can well meet the high-performance requirements of the fields of low-temperature food packaging industry and the like on the PET material.

The application relates to a fruit and vegetable packaging film based on a MOF material, which comprises the following components: polyvinyl alcohol, modified polylactic acid, Ag@MOF nanoparticles, plant extract, glycerol, and a solvent; wherein the modified polylactic acid is obtained by reaction of acrylamide, double-bond polylactic acid, vinyl acetate and KH570 modified nano-silver particles. Through the synergistic effect of the modified polylactic acid and components such as polyvinyl alcohol, Ag@MOF nanoparticles and plant extract, the mechanical properties, compatibility, antibacterial property, barrier property and preservation performance of the packaging film are significantly improved, the degradability of the material is ensured, and the application has important significance for promoting the development of the fruit and vegetable preservation packaging industry.

This invention relates to the field of AI intelligent design technology, specifically to a packaging system platform based on AI intelligent design and its usage method, including an AI intelligent design unit, an ASIC computing acceleration unit, a seamless data integration unit, an intelligent manufacturing control unit, and a smart logistics warehousing unit. This invention achieves intelligent analysis of packaging design requirements, automatic generation and optimization of compliant and implementable digital design solutions through multimodal large-scale models, a packaging industry-specific database, and ASIC computing power support. Furthermore, it provides low-power, low-latency hardware-level dedicated acceleration support for AI design model computation and visual inspection algorithms through lightweight acceleration technologies such as a customized heterogeneous computing architecture for the packaging field, dedicated instruction set scheduling, mixed-precision quantization, and operator fusion. The synergistic effect of these two technologies significantly improves packaging design efficiency, compliance, and feasibility.

The utility model relates to the technical field of PE film processing equipment, in particular to a PE wrapping film slitting processing device facilitating quick film replacement. According to the technical scheme, the slitting device comprises a slitting device body and a guide roller used for guiding and conveying a PE winding film, and a fixing assembly used for fixing the position of a PE winding film winding drum is further installed in the slitting device body; the fixing assembly comprises a first air cylinder fixedly connected with the side face of the slitting equipment body, the output end of the first air cylinder is connected with a fixing frame, and the outer ring of the fixing frame is further provided with a first sleeve piece, a second sleeve piece and a third sleeve piece with the diameters sequentially increased. According to the utility model, the winding drums with different inner diameters can be quickly positioned and fixed without frequently replacing a fixing assembly, the PE winding film is quickly mounted, and the winding drum fixing device is suitable for flexible production scenes of various varieties and conforms to the development trend of high efficiency and intelligence in the packaging industry.

This invention relates to a process for manufacturing hot stamping foil for cigarette tipping paper. The process involves preparing a base film layer, release layer, color layer, plating layer, and adhesive layer using biodegradable materials. The base film is prepared by mixing polylactic acid with a cellulose derivative. A wax-based release agent is then coated onto the base film to form the release layer. Next, a water-based pigment is coated to form the color layer. A thin aluminum plating layer is formed using vacuum evaporation. Finally, a biodegradable adhesive is coated to form the adhesive layer. The hot stamping foil obtained by this process is suitable for cigarette tipping paper, possessing certain degradation properties and hot stamping adhesion. The manufacturing process includes raw material preparation, coating, and drying steps, and is applicable to the cigarette packaging industry.

The utility model discloses an efficient reinforcement forming device for a cosmetic bottle opening. And a plurality of problems in the process of manufacturing the bottle opening from the PET bottle preform in the blow molding process are effectively solved. The device comprises forming dies which are symmetrically arranged, and forming cavities on the inner sides of the forming dies determine the shape of a bottle opening. And cooling runners are arranged in the forming die and are uniformly distributed along the outer side of the forming cavity. The semi-ring cavity cooling cavity and the inner edge cooling forming groove in the lower end inside are matched with the bottom of the forming die in shape, material flowing is guided, and the strength of the bottle opening is enhanced. The heat dissipation spacers distributed in the cooling cavity in a circumferential array mode are matched with the surface micro-channels, the heat dissipation efficiency is greatly improved, and the dimensional deviation caused by uneven cooling is solved. In addition, a guide groove and a guide column on the front side of the forming die ensure accurate opening and closing of the die and stable production. The device obviously improves the bottle opening forming quality, improves the size precision and strength, shortens the blow molding period, reduces the cost, and powerfully promotes the development of the cosmetic packaging industry.

The invention relates to a preparation method of novel anti-counterfeiting directly-plated paper, belongs to the technical field of packaging materials, and is realized by mainly depending on the interaction of a prime coating and a printing coating. According to the key point of the technical scheme, the coating comprises the following components in parts by weight: a primer coating comprises the following components in percentage by weight: 20-22% of epoxy acrylic resin; 28 to 30% of TPGDA (Thermoplastic Glycol 20%-21% of TMPTA (trimethylolpropane 28.5%-29.5% of HDDA (High Density And 0.5 to 1% of BYK333. The printing coating comprises the following components in percentage by weight: 20-24% of pure acrylic resin; 5% of epoxy acrylic acid; 35.8% to 39.8% of TPGDA (Thermoplastic 20%-22% of TMPTA (Trimethoprim Poly 13 to 15% of HDDA (Hexamethylene Diamine Diamine And 0.2%-0.5% of BYK333. The invention aims to provide the coating for prime coat and the coating for printing, which are used for producing a high-quality positioning anti-counterfeiting product, a high-brightness effect and a matte effect of a mirror surface are formed on the same printed matter through a cohesion reaction between the prime coat layer and the printing layer, high contrast of local images and texts is visually realized, and the anti-counterfeiting effect of the printed matter is improved. And the three-dimensional convex feeling and the cold ironing effect are achieved at the same time, the double requirements for counterfeiting prevention and attractiveness are met, and the requirements of the novel high-end packaging industry and the decorative material market are met.

The utility model belongs to the technical field of transport packaging, and particularly relates to a fresh food frame. The fresh food frame comprises a frame body and a bottom pad. The frame body comprises a bottom plate and a side peripheral plate arranged around the bottom plate by a circle, and the bottom plate and the side peripheral plate define a containing groove with an opening in the top. The bottom pad is arranged in the containing groove and connected with the bottom plate. The bottom pad at least comprises an antibacterial layer, and the antibacterial layer is made of fibrilia composite materials and can cover the bottom of the containing groove. According to the embodiment of the invention, the antibacterial layer is made of the fibrilia composite material, so that the bottom pad has the characteristics of good antibacterial property, bearing property, buffering property, renewable recycling property and the like, the shelf life of goods such as fresh goods can be prolonged, the durability of the bottom pad is improved, and the service life of the bottom pad is prolonged. And the requirement of green transformation in the fresh cold-chain packaging industry can be met.

A hot melt adhesive composition, a hot melt adhesive, and a preparation method for the hot melt adhesive. The hot melt adhesive composition comprises a base polymer, a tackifying resin, and an antioxidant. The base polymer comprises a styrene block copolymer, an amorphous α-olefin copolymer, and an ethylene-vinyl acetate copolymer. The tackifying resin is a pure monomer resin. The hot melt adhesive is prepared mainly from the hot melt adhesive composition. The hot melt adhesive has a non-stringing effect during coating. The hot melt adhesive composition or the hot melt adhesive is applied to the industrial assembly or packaging industry.

The invention belongs to the technical field of cellulose, and particularly relates to type II bacterial cellulose slurry as well as a preparation method and application thereof. Compared with the prior art, the preparation method has the advantages that the bacterial cellulose gel is modified to be converted into a cellulose type II from a cellulose type I, the stacking structure and the hydrophilic performance of a bacterial cellulose molecular chain are changed, and the bacterial cellulose pulp from the nanometer level to the millimeter level is further obtained through pulping treatment; the product is milky white, odorless, tasteless, controllable in granularity and adjustable in hydrophilic performance, can be quickly dispersed after being added with water and stirred, and can be applied to the fields of preparation of degradable materials, reinforcement of composite materials, papermaking and packaging industry, biomedicine and health, daily chemical industry, cosmetics and the like; and the preparation method greatly reduces the dosage of the poor alkali solvent and the recovery energy consumption, is simple in process, does not need special equipment, and is green and environment-friendly.

1. The name of the design product: electric punch (soft package composite film). 2. The use of the design product: used for packaging industry punching. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

This utility model provides a rollerball ampoule dispensing device, relating to the packaging industry. It includes a lower shell and an upper shell that cooperates with the lower shell. A cavity is formed between the lower and upper shells to accommodate the ampoule. A sealing plate is provided at the upper opening of the cavity for contacting the ampoule mouth. A rollerball structure is provided on the other side of the sealing plate. A through hole is provided in the middle of the sealing plate, connecting the rollerball structure and the cavity. This application utilizes a through opening at the bottom of the lower shell, a cutting structure, and positioning ribs for guidance and fixation, retaining waste materials and preventing glass fragments from splashing, ensuring safety and the cleanliness of the medication. The combination of the upper shell, rollerball structure, and sealing cap allows the medication to flow evenly from the sealing plate through the through hole to the rollerball during administration. Rolling allows for precise medication delivery, making ampoule medication administration more convenient.

The application discloses a dictionary proxy cutting surface method for corrugated paper packaging industry and related equipment, and the method comprises the following steps: obtaining parameters, mechanical codes and names of each equipment, and establishing a dictionary table based on the parameters, the mechanical codes and the names; splitting the dictionary table to obtain a business dictionary table and a system dictionary table, and respectively performing self-defined annotation on the business dictionary table and the system dictionary table to obtain a first list annotation and a second list annotation; capturing list data of the dictionary table based on a dictionary cutting surface proxy, and obtaining an identifier of the list data based on the first list annotation and the second list annotation; obtaining target data based on the identifier, and encapsulating and returning the data to a front-end page. The application splits a dictionary table into a system dictionary table and a business dictionary table, simultaneously reforms a cutting surface interface, and places the system dictionary table into a redis cache and the business dictionary table into a query database, so that the pressure of a database is greatly reduced, and the system performance is improved.

The utility model relates to the technical field of packaging equipment, in particular to heat-sealing packaging equipment which is provided with a conveying mechanism and a film covering heat shrinkage mechanism, a negative pressure generating mechanism is arranged in the conveying mechanism, negative pressure can be generated between a heat shrinkage film and a bottom film, meanwhile, a product is heat-sealed between the heat shrinkage film and the bottom film through the high temperature of a heating pipe, and therefore the packaging efficiency is improved. The automation degree is high, heat sealing efficiency and quality are improved, and the requirements of the modern packaging industry are met; in addition, the film covering thermal shrinkage mechanism comprises a movable support, a lifting driving assembly, an unwinding assembly and a grabbing assembly, and the grabbing assembly pulls out the thermal shrinkage film in the unwinding assembly and covers the lower portion of the movable support. The lifting driving assembly drives the movable support to move downwards and enables the pulled-out heat shrinkage film to cover the upper end of the product so that subsequent negative pressure heat sealing packaging can be conveniently carried out, the packaging efficiency is improved, and the device is suitable for various product sizes. And the heat shrinkage film is pulled out through the grabbing assembly, the phenomena of jamming and deviation are avoided, and the heat sealing packaging quality is improved.

The invention discloses high-solid-content water-soluble starch glue suitable for printing or packaging industry and a preparation method thereof, and belongs to the field of glue, the high-solid-content water-soluble starch glue is mainly prepared from the following components: 100 parts by weight of modified starch, 50-450 parts by weight of functional filler, 0.01-10 parts by weight of surfactant and 3-20 parts by weight of fiber, 10-30 parts by weight of a drying agent and 120-200 parts by weight of water, and the solid content of the high-solid-content water-soluble starch glue is greater than or equal to 70 wt%. No caustic soda or borax participates in the gelatinization link, the solid content is high and is not smaller than 70 wt%, the total thickness and the compressive strength can be increased after the adhesive is used for adhering an adhered object, and moisture absorption and deformation are avoided.

The utility model relates to the technical field of packaging boxes, in particular to an automatic adjusting device for the indentation depth of a packaging box, an operator rotates a mounting ring at a corresponding position according to the requirement of a specific part of the packaging box for the indentation depth, and pressing plates with different lengths can move to the position under a mounting rod by rotating the mounting ring; the pressing plates located under the pressing plates jointly form the creasing die meeting the current packaging box creasing requirement. And the pressing depths of the pressing plates with different lengths are different, so that indentations with different depths can be applied to different positions of the packaging box, and different indentation depths required by different positions of the same indentation of a special packaging box are met. Compared with a traditional method, multiple times of indentation operation or customization of a complex mold are not needed, the flexibility and efficiency of indentation depth adjustment are greatly improved, and the increasingly diversified production requirements of the packaging industry are met. The packaging box can be widely applied to the technical field of packaging boxes.

The invention discloses a medicine packaging bag printing quality control system based on dynamic tagging. The system comprises a multi-physical field sensor array, a microfluidic surface analysis chip, a dual-mode tagging device, a self-adaptive optical modulator, a nanoscale positioning mechanical arm, a full-spectrum imaging system, a 3D surface scanning module, an edge-cloud hybrid computing platform, a high-precision time synchronization module, a fault prediction sensor, an embedded block chain node and an industrial 5G gateway. According to the method, through multi-dimensional base material characteristic perception, Transform modeling and PPO optimization, real-time tagging execution, full-spectrum quality detection, fault prediction and block chain tracing, high-definition tagging, accurate positioning and low rejection rate are realized. The system adapts to complex base materials and high-speed production lines, remarkably improves defect detection sensitivity and production continuity, reduces data tracing cost, conforms to supervision standards, supports green manufacturing, has cross-scene universality, is low in debugging and adaptation cost, and provides an efficient and intelligent solution for the medicine packaging industry.

The invention discloses a biodegradable thermal shrinkage film material with a three-layer structure and a preparation method thereof. The biodegradable material is composed of PLA resin / PHA resin / PETG resin, PBAT resin, a polyethylene glycol-epoxy resin-trimellitic anhydride copolymer, a lubricant and an anti-blocking agent. The PBAT is compounded with the PLA material, the PETG material and the PHA material, meanwhile, substances with epoxy functional groups and carboxyl functional groups are introduced into all the layers, the compatibility of all the components is improved, the transparency of the film is improved, and meanwhile, the PETG is introduced, so that the film has good barrier property; in addition, through one-time forming of three-layer film blowing, the processing process is simple, the equipment investment cost is low, and the method is suitable for the film packaging industry.

The invention relates to the field of packaging industry technologies. A lid for a container with a removable tubular drinking element contains a housing for closing the neck of the container and a means for interacting with the upper end of the tubular element that forms a controlled friction joint. The friction joint provides a holding force of 20-30 grams, sufficient to lift the tubular element together with the lid, performs partial extraction by 10-20 mm, automatically uncouples when thresholds are exceeded: angular (more than 45°) or linear (more than 10 mm axial displacement), after uncoupling it leaves the tubular element in a position accessible for finger grip. The method of assembling a drinking device comprises placing it in a container with subsequent sealing. The drinking device is capable of manual and automatic assembly. The method provides reliable fixation of the tube while opening the drinking device, and removal of the tube without any accidental uncoupling.

The application discloses a kind of nanofiber membrane for conformal packaging and preparation method, it belongs to precision instrument packaging material field, wherein, the preparation method of nanofiber membrane includes the following steps: biomass glue is added to first solvent with plant and is stirred, ultrasonic treatment, then is centrifuged and freeze-dried, obtain biomass glue;Polymer matrix material is added to second solvent and is dissolved, then the biomass glue is added and is mixed, obtain spinning precursor liquid;The spinning precursor liquid is electrospun, obtain nanofiber membrane;The nanofiber membrane is exposed in the vapor of crosslinking agent volatilization and carries out crosslinking reaction, obtain crosslinked nanofiber membrane.The crosslinked nanofiber membrane prepared by the application has superfast shrinkage response to water vapor, has the characteristics of high conformability and high adhesion, can meet the demand of modern packaging industry to high efficiency, environmental protection and intelligent, has good application prospect in precision instrument packaging field.

The utility model discloses a double-layer anti-corrosion ton bag, which belongs to the packaging industry and comprises a ton bag body, the ton bag body comprises a ton bag body, a ton bag bottom and a ton bag top, the ton bag top is connected with a material guide pipe communicated with an inner cavity, the ton bag bottom is connected with a material discharge pipe communicated with the inner cavity, and the ton bag body is connected with four suspension structures for suspending the ton bag body. The ton bag body, the ton bag bottom and the ton bag top each comprise a first basalt fiber braided layer and a second basalt fiber braided layer, and pores of the first basalt fiber braided layers and pores of the second basalt fiber braided layers are arranged in a staggered mode. The packaging box is suitable for packaging, storing and transporting powdery, granular and blocky objects such as chemical engineering, building materials, plastics, mineral products and the like, has good corrosion resistance and moisture resistance, is not easy to damage equipment, and can be repeatedly used.

The invention discloses a full-automatic metal wire digital precise shaping net connection packaging system which comprises a precise drawing machine body, a wire supporting column, a rotary take-up structure, a movable grabbing structure, a bundling and material supporting structure and a collecting and wire outlet structure, and the full-process functions of wire outlet, wire shifting, hooking and shearing, wire take-up, grabbing, bundling and collecting are integrated. The core advantages of the device are that digital precise control, precise shaping and full-automatic operation are realized, key data are acquired through a sensor, the precision of each link is improved in cooperation with structures such as gear and rack transmission, a slide rail and a slide block, and the device can be flexibly adapted to multi-specification wires. The problems that in the prior art, the automation degree is low, all links are poor in collaboration, precision is insufficient, adaptability is single and digital management and control are lacked are effectively solved, production efficiency and product quality are remarkably improved, labor and operation and maintenance cost is reduced, intelligent upgrading of the metal wire packaging industry is assisted, and wire machining requirements in the fields of buildings, electronics, automobiles and the like are met.

The utility model relates to the technical field of packaging industry, in particular to a cigarette packet box bottom clamping glue transfer printing mechanism which comprises a base, a first bottom plate is fixedly installed at the top of the base, a stand column is fixedly installed at the top of the first bottom plate, a glue storage plate is fixedly installed at the top of the stand column, and a second bottom plate is arranged below the glue storage plate. The second bottom plate is in sliding connection with the first bottom plate, and a driving mechanism for moving the second bottom plate is installed at the bottom of the first bottom plate. The servo motor drives the synchronous belt to rotate, the synchronous belt drives the bottom plate to move back and forth, the bottom plate drives the glue brushing plate and the transfer printing plate to move together, the two ends of the top of the bottom plate II are fixedly provided with the support, the top of the support is fixedly provided with the platform, and the lower portion of the platform is provided with the glue brushing plate and the transfer printing plate. And then the glue brushing plate and the transfer printing plate are repeatedly driven to ascend and descend through the first lifting device and the second lifting device correspondingly, the cigarette packet box bottom is clamped on the glue storage plate to be printed, and the printing efficiency is improved.

This application discloses a composite material liner and its manufacturing process. The manufacturing process includes: subjecting a foam substrate to plasma surface activation treatment to obtain an activated foam substrate; placing the activated foam substrate and a polyester film in an ultraviolet irradiation device for modification and composite treatment to obtain a composite substrate; irradiating the composite substrate line by line along a preset grid pattern using a laser to form a grooved network structure on the surface of the composite substrate to obtain a grid substrate with grid marking lines; applying a nano-coating to the grid substrate to obtain a coated substrate; hot-pressing and shaping the coated substrate to obtain a liner semi-finished product; and laser-cutting the liner semi-finished product according to a preset size to obtain the composite material liner. This application, through integrated process design, significantly overcomes the technical bottleneck of insufficient surface structure processing precision in existing technologies, and significantly improves the applicability and reliability of the product in the electronic equipment, automotive interior, and packaging industries.

The utility model relates to the technical field of cutting equipment, in particular to a laminating and cutting system, which is used for packaging and cutting products and is provided with a laminating unit and a cutting unit. The grabbing assembly is used for clamping the top film unwound by the unwinding assembly and pulling the top film to the lower end of the movable support, then the lifting driving assembly drives the movable support to move downwards, and then the bottom film and a product are covered with the top film. After heat-seal packaging is completed, the cutting unit conducts cutting through automatic mechanical equipment; and mechanical structure arrangement and machining steps are reasonable and efficient, the product packaging quality and efficiency can be improved, and the requirement of the large-scale packaging industry is met.

The invention discloses a reslurrable organic silicon waterproof and oil-proof coating as well as a preparation method and application thereof, and belongs to the technical field of new organic silicon materials. The preparation method comprises the following steps: preparing amino silicon oil by taking methylcyclosiloxane, N-beta-aminoethyl-gamma-aminopropyl methyl dimethoxy silane and tetramethyl amine hydroxide as raw materials; performing epoxidation on the alkyl gallate to prepare alkyl gallate epoxy; the surface of paper is coated with amino silicon oil and alkyl gallate epoxy in a roller coating mode, and the waterproof and oil-proof coating of the paper is prepared through the ring-opening reaction of epoxy and amino. After paper is coated with the waterproof and oil-proof coating, the waterproof and oil-proof coating can be directly used as food packaging paper, the conventional waterproof and oil-proof effect can be achieved, hot water and hot oil contact scenes can be better resisted, the excellent repulping recycling performance is achieved, after the packaging use period is completed, fiber recycling can be achieved through a conventional papermaking repulping process, and the production cost is reduced. Environmental burden caused by difficult degradation and incapability of recycling is avoided, and resource recycling in the packaging industry is facilitated.

This invention relates to a modified ethylene-vinyl acetate copolymer material and a method for preparing its EVA film. The material uses ethylene-vinyl acetate copolymer as the continuous phase, introduces high-density polyethylene and linear low-density polyethylene to construct a composite structure, and achieves interphase connection through polar grafted polyethylene. Simultaneously, it incorporates orientation-controlled fillers with specific aspect ratios to form a multi-level synergistic system. During processing, the intermediate structure formed in the system is rapidly fixed through the coordinated control of process parameters such as shear rate, shear time, rapid cooling under negative pressure, and directional traction, resulting in a non-uniform orientation distribution along the film thickness direction. By establishing the relationship between shear strength, polar component dosage, and filler dosage, continuous transmission of structural evolution is achieved. The resulting EVA film exhibits good stability in terms of crystallization behavior, heat-sealing performance, and mechanical properties, featuring high heat-sealing strength, a wide heat-sealing window, and good structural continuity, making it suitable for the packaging industry.

A sleeve (10) for mounting on a mandrel of a commercial printing machine may include different annular regions that are simultaneously integrally formed into a unitary structure without the need to form the mandrel and without the need to adhere to each other in a manufacturing step separate from the manufacturing of each annular region of the finished sleeve. A 3D printing machine and method suitable for use in one or more of the flexible packaging industry, the lithographic printing industry, the publication printing industry, the decoration printing industry, and the corrugation printing industry employ a build plate descending from a horizontal printing plane at which a 3D printing material is applied to one or more of the flexible packaging industry, the lithographic printing industry, the publication printing industry, the decoration printing industry, and the corrugation printing industry. Each of the plurality of printheads extrudes a strand cycle of thermoplastic material onto a strand cycle immediately below the sleeve.