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1161 results about "Pack material" patented technology

Double-PHA (polyhydroxyalkanoate) barrier system for paper-based containers and paperboards and preparation method and application of double-PHA barrier system

The invention discloses a double-PHA barrier system for a paper-based container and a paperboard as well as a preparation method and application of the double-PHA barrier system, and belongs to the technical field of paper-based material surface engineering and green packaging. The system sequentially comprises a paper base material, a water-based PHA dispersion hole sealing layer and a PHA extrusion compact layer from inside to outside. According to the invention, the micron-sized PHA dispersoid without cell debris is utilized, so that an efficient hole sealing effect which is difficult to achieve by a high coating amount in a traditional process can be achieved by only needing an extremely low coating amount, and the pinhole defect of an extrusion layer is eliminated from the source. And in cooperation with the modified PHA extrusion layer with the specific crystallinity, the problem of micro-cracking of a single coating during edge rolling forming is cooperatively solved. According to the system, excellent barrier performance is achieved through a thinner bio-based structure, and meanwhile the system has a wide heat sealing window and excellent repulp recycling performance. Compared with the prior art, on the premise that high performance is guaranteed, the consumption amount of packaging materials and the environmental burden are remarkably reduced.
Owner:DU BAI CHENG NEW MATERIAL TECH (SHANGHAI) CO LTD +3

PE-PA-based composite film, manufacturing process and application in BIB liquid packaging

The invention relates to the technical field of research and development of BIB liquid packaging materials, and discloses a PE-PA-based composite film, a manufacturing process and an application in BIB liquid packaging, and specifically comprises the following steps: synthesizing a PE-PA compatilizer; the preparation method comprises the following steps: carrying out ring-opening reaction on an epoxy functional group of a PE-PA compatilizer and an amino functional group or a carboxyl functional group at a PA resin molecular chain end to prepare PE-PA compatilizer grafted nylon resin, and carrying out physical anchoring action on a long-chain alkane structure on the PE-PA compatilizer grafted nylon resin and a PE resin molecular chain to prepare the PE-PA alloy master batch; low-density polyethylene resin is used as a raw material of a supporting layer, PE-PA alloy master batch is used as a raw material of a functional layer, metallocene polyethylene resin is used as a raw material of a heat sealing layer, a three-layer co-extrusion blow molding film forming technology is adopted, the PE-PA composite film is prepared, and the film product is excellent in comprehensive performance and can be used for manufacturing a BIB bag body.
Owner:SUZHOU ZIJIN PLASTIC

High-temperature-resistant heat-seal straw-pluggable easy-to-tear cover and preparation method thereof

The invention belongs to the technical field of packaging materials, and discloses a high-temperature-resistant heat-seal straw-pluggable easy-to-tear cover and a preparation method thereof.The body comprises a PET layer, a blocking layer and a PE layer which are sequentially compounded from outside to inside, the blocking layer is an AL layer, laser invisible pre-scribed lines are arranged on the easy-to-tear cover, the laser invisible pre-scribed lines only penetrate through the PET layer and the blocking layer and do not penetrate through the PE layer, the thickness of the PET layer ranges from 12 micrometers to 20 micrometers, and the thickness of the PE layer ranges from 12 micrometers to 20 micrometers. The barrier layer is an AL layer, the thickness of the AL layer is 7-12 microns, the thickness of the PE layer is 40-60 microns, and the PET layer is prepared from the following raw materials in parts by weight: 80-95 parts of PET resin, 5-10 parts of composite modified nano silicon dioxide, 3-6 parts of a heat stabilizer and 0.5-2 parts of a lubricant; the composite modified nano silicon dioxide is maleic anhydride grafted polybutadiene composite modified nano silicon dioxide, and the composite modified nano silicon dioxide is uniformly dispersed in a PET matrix by virtue of good compatibility with PET resin, so that the overall toughness and heat sealability of the easy-to-tear cover are remarkably enhanced.
Owner:GLODSTONE PACKAGING JIAXING

Dual ring stuffing box

A system includes a fluid end having a fluid end face and a recess extending toward a base. The system also includes a pressure ring extending from the fluid end face, the pressure ring having a pressure ring bore diameter larger than a fluid end bore diameter. The system further includes an adjacent ring coupled to the fluid end, the pressure ring positioned between the adjacent ring and the base, wherein at least one fastener extends through an aperture of the adjacent ring to couple the adjacent ring to the fluid end. The system includes packing material positioned within at least a portion of the pressure ring bore, the packing material positioned such that axial movement toward the fluid end is blocked by the base.
Owner:VULCAN IND HOLDINGS LLC

Dangerous chemical packaging quality prediction method and system based on deep learning

The invention belongs to the technical field of chemical packaging supervision, and particularly relates to a dangerous chemical packaging quality prediction method and system based on deep learning. The system comprises a packaging material scanning detection module, a packaging material judgment analysis module, a sealing integrity analysis module, a man-machine collaborative decision-making module, a packaging management detection evaluation module and a packaging supervision terminal. The packaging material scanning and detecting module is used for scanning and detecting the surface of the packaging material of the dangerous chemical, and the packaging material judging and analyzing module and the sealing integrity analyzing module are used for analyzing the surface condition and the sealing integrity of the packaging material, so that the packaging quality of the dangerous chemical is effectively monitored and accurately judged; a powerful guarantee is provided for safe transportation and storage of the dangerous chemicals, reasonable improvement measures are taken in time according to the packaging management performance of the dangerous chemicals through accurate evaluation, and subsequent packaging quality and packaging stability and high efficiency can be guaranteed.
Owner:LINYI YIQUN PACKAGING PROD CO LTD

Paper-based multilayer packaging materials and methods

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.
Owner:PROAMPAC HOLDINGS INC

Creating virtual pouch in reusable packaging methods and systems

ActiveUS12630320B2Flexible coversWrappersPack materialReusable packaging
Packaging methods include inserting an article into a virtual pouch defined by folding and tacking a first sheet of textile material. The first sheet is then folded about the article such that the first sheet encompasses the article. A second sheet of a textile material is then folded about the first sheet into a configuration such that the second sheet entirely envelops and encloses the first sheet and the textile article. The second folded sheet is then secured in the enveloping configuration. Alternatively, the article is wrapped in and encompassed by a first sheet of textile material by folding and the resulting package is then enclosed within a virtual pouch created in a second sheet of textile material. The resulting outer sheet enclosing the inner sheet with the textile article is then secured in its enclosing configuration with a strap. The packaging materials can be cleaned and decontaminated for reuse.
Owner:RZ CIRCULAR LTD

PE (polyethylene) composite film for manufacturing packaging bag and preparation method of PE composite film

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.
Owner:QINGDAO YONGCHANG PLASTIC&METAL CO LTD

Package enclosure using single-layer crepe paper packaging materials and related package

PendingUS20260062176A1Flexible coversWrappersCrêpe paperProcess engineering
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.
Owner:IOW LLC

3-D printed packaging

Items may be packaged for shipping or storage using additive manufacturing techniques, also known as three dimensional (3-D) printing. Packages made by such processes may be referred to as 3-D printed packages and may include packing material printed at least partially around the item(s) and / or an outer cover printed about at least a portion of an exterior of the packing material and / or the item(s). A packaging system may include a 3-D printer and a computing device communicatively coupled to the 3-D printer. The computing device may obtain a packaging model describing a package for one or more items. A print module of the computing device may include instructions to print the package at least partially about the item(s) according to the packaging model.
Owner:COLSON SHAY C +4

Method and system for storing and / or transporting temperature-sensitive materials

Method and system for maintaining temperature-sensitive materials within a desired temperature range for an extended time. In one embodiment, the system includes an outer box having a rectangular cavity. An insulation unit is snugly but removably positioned in the rectangular cavity. The insulation unit includes a support and a thermal insulation member. The support may be a generally rectangular sleeve with four sides, an open bottom and an open top. The thermal insulation may be a bilayer material wrapped around the four sides of the support to form a spiral structure. The bilayer material may include a first sheet of an expanded slit-sheet packaging material and a second sheet of tissue paper. The system may additionally include a bottom insulation member at the bottom of the support, a top insulation member at the top of the support, and a payload and temperature-control members between the top and bottom insulation member.
Owner:COLD CHAIN TECH LLC

Laminate, packaging material, package, and packaged article

There is provided a laminate excellent in abuse resistance and adhesion, and a packaging material, a package, and a packaged article including the laminate. The laminate (10) includes a first substrate layer (1), an anchor coat layer (2), and an inorganic barrier layer (3) in this order, wherein the first substrate layer (1) contains a polyolefin, and the anchor coat layer (2) has a sectional composite elastic modulus in a range of 3.5 to 6.5 GPa and a thickness in a range of 0.4 to 3.0 μm.
Owner:TOPPAN HOLDINGS INC

Laminate, packaging material, and recycling method

Provided are a laminate in which a print layer and an adhesive layer are easily peeled off when immersed in a release agent, and the adhesive layer and the print layer peeled from the laminate are easily collected from the release agent without being torn into tiny pieces, a recycling method of the laminate, and a recycled plastic obtained from the laminate. The laminate includes a first base material, a second base material, a leaving layer disposed between the first base material and the second base material, an adhesive layer disposed between the leaving layer and the second base material and being a cured coating film of an adhesive containing an acid anhydride, and a print layer disposed between the leaving layer and the adhesive layer.
Owner:DIC CORP

System and method for automatically energizing packing material with a packing loading assembly

A system for regulating an axial biasing force applied to a stacked set of packing elements mounted within stationary equipment, comprising a packing loading assembly for sealing a process fluid within the stationary equipment and for applying the axial biasing force to the packing elements via a pressurized fluid from a pressure regulator. The packing loading assembly includes a gland element for mounting to the stationary equipment by a plurality of gland bolts, and an external actuation subsystem for coupling to at least one of the plurality of gland bolts for applying an axial actuation force directly to the gland element in response to the pressurized fluid. The gland element in response to the axial actuation force applies the axial biasing force to the packing elements.
Owner:CHESTERTON AW CO

Novel heavy packaging bag falling test machine

The invention relates to the technical field of packaging material detection, and discloses a novel heavy packaging bag falling test machine which comprises a frame mechanism, a rack, four footstand assemblies arranged at the bottom of the rack, a protective fence arranged on the outer side of the rack, a protective fence door arranged on one side of the protective fence and a protective fence lock arranged on the protective fence door. The guardrail safety switch is arranged on the guardrail door, and the height scale is arranged on one side of the rack. Through transmission of a chain wheel and a chain in the lifting assembly, rapid and accurate adjustment of the test height is achieved, the power assembly and the release assembly guarantee instantaneous release of a packaging bag and reliable reset of the device through a one-way meshing structure, flexible switching of vertical falling and flat falling tests is achieved through the erecting assembly, and the test efficiency is improved. The protective guard, the safety switch and other facilities not only guarantee the operation safety, but also provide a complete basis for test analysis, and significantly improve the efficiency, safety and diversity of the anti-falling performance test of the heavy packaging bag.
Owner:GUANGDONG YIYING ADVANCED MATERIALS CO LTD

Environment-friendly high-barrier paper-based blister packaging sheet and preparation method thereof

The present application relates to the technical field of packaging materials, and particularly relates to an environment-friendly high-barrier paper-based blister packaging sheet and a preparation method thereof, which comprises determining the coefficient of the cold stamping target parameter according to the blister type and the blister area change, determining the judgment standard of the subsequent consumption elongation rate and the spraying amount of the upper film heat-seal glue area; confirming the influence of the correction tension change on the lower film cold stamping and the upper and lower film heat sealing based on the predicted cumulative length difference, or correcting the corresponding unwinding speed without breaking through the corresponding film roll strength error allowable range; calculating the consumption elongation rate according to the actual thickness of the lower film and the actual tension change, adjusting the cold stamping target parameter according to the prediction of the decline degree of the plastic deformation ability of the lower film within the normal range, or adjusting the cumulative length difference to break through the judgment standard of the corresponding error allowable range when the decline degree exceeds the normal range. The present application replaces the aluminum-plastic blister packaging with a single paper-based material to reduce the consumption of non-renewable resources by the packaging bag material.
Owner:ZHEJIANG GOLDSTONE PACKING

Packaging material film pasting device

The utility model discloses a packaging material film pasting device in the technical field of film pasting devices, which comprises a support frame, a first sliding groove is fixedly formed in the surface of one side of a first stand column, a threaded rod is rotatably mounted on the inner side of the first sliding groove, and the top end of the threaded rod extends to the upper part of the first stand column. The surface of the threaded rod is sleeved with a first sliding block in a threaded mode, a second sliding groove is fixedly formed in the surface of one side of the second stand column, a fixing rod is fixedly installed on the inner side of the second sliding groove, a second sliding block is slidably connected to the surface of the fixing rod, and a film pasting roller is rotatably connected between the first sliding block and the second sliding block. A first sliding block can be driven to vertically move in a first sliding groove by rotating a threaded rod, a film pasting roller on one side can be driven to ascend and descend through movement of the first sliding block, and therefore the height of the film pasting roller can be adjusted according to the thickness of a packaging material, the bottom of the film pasting roller is attached to the surface of the packaging material all the time, and the packaging efficiency is improved. And the film pasting effect is improved.
Owner:JINING SHENGYUAN PAPER PROD CO LTD

Packaging system and method for feeding flat packaging materials to a packaging system

The invention relates to a packaging system (1) and to a method for using the same. The packaging system (1) comprises a packaging module (2), a first transport device (3) for feeding articles to the packaging module (2) in a first transport direction (TR1), and a second transport device (4) for feeding flat packaging materials (20) arranged in a first upright orientation (22sv1) in a second transport direction (TR2). The packaging system (1) comprises a handling device (5) for arranging the flat packaging materials (20) on the second transport device (4), and at least one displacement unit (8), configured to displace a plurality of upright packaging materials (20) relative to one another. The displacement unit (8) has vertically oriented side walls (9) and a support surface (10), wherein an angle differing from 90 degrees is formed between each of the side walls (9) and the support surface (10).
Owner:KRONES AG

High-strength tear-resistant composite aluminum foil paperboard

The utility model discloses a high-strength tear-resistant composite aluminum foil paperboard, and belongs to the technical field of packaging materials, the high-strength tear-resistant composite aluminum foil paperboard comprises a composite aluminum foil paperboard main body, the composite aluminum foil paperboard main body comprises a base material layer, the base material layer adopts high-quality kraft paper as a raw material, and a stretch-resistant net is arranged on the upper surface of the base material layer; the high-quality kraft paper is selected as the raw material of the base material layer, good printing applicability and low cost can be guaranteed, the stretch-resistant net is arranged between the base material layer and the aluminum foil layer, and the base material layer, the aluminum foil layer and the stretch-resistant net are fixedly bonded together through the adhesive layer to form a whole. The tensile net formed by weaving the vertical cellulose filaments and the transverse cellulose filaments in a staggered mode has excellent mechanical performance due to the strong interaction force between molecules, so that the tearing strength and the overall mechanical stability of the composite aluminum foil paperboard main body can be greatly improved, the composite aluminum foil paperboard main body can bear large external force such as stretching, compression and bending, and the service life of the composite aluminum foil paperboard main body is prolonged. And firmness and durability are realized.
Owner:NANJING HENGYE PACKAGING MATERIAL CO LTD

Preparation device for hot-pressing laminating high-air-tightness composite packaging material

The utility model relates to the field of packaging material preparation, and discloses a hot-press fitting high-airtightness composite packaging material preparation device which comprises a hot press body, the left side and the right side of the hot press body are each of an opening structure, two mounting bases are fixedly mounted on the inner wall of the top of the hot press body, and electric hydraulic cylinders are fixedly mounted at the bottoms of the two mounting bases; and pressure sensors are fixedly installed at the output shaft ends of the two electric hydraulic cylinders correspondingly, U-shaped plates are fixedly installed at the bottoms of the two pressure sensors correspondingly, first pressing rollers are rotationally installed in the two U-shaped plates correspondingly, and two second pressing rollers are rotationally installed in the hot press body. Compared with the prior art, the multi-layer hot-press laminating machine has the following advantages and effects that integrated operation of preheating, primary hot-press laminating and secondary hot-press laminating of multiple layers of films can be achieved in sequence, molecule bonding between the layers of films is more sufficient, residual air between the layers can be extruded out, the overall laminating effect is improved, and the airtight performance of a packaging material is improved.
Owner:CHANGYUAN DABO PACKAGING CO LTD

Oil drum packaging equipment for lubricating oil production

The utility model belongs to the technical field of lubricating oil drum packaging equipment, in particular to oil drum packaging equipment for lubricating oil production, which comprises an equipment main body, a control panel, an extension support and a front bearing sleeve, the control panel is arranged at the upper end of the equipment main body, the extension support is arranged at the side end of the equipment main body, and the front bearing sleeve is arranged at the side end of the extension support. By arranging the forward winding wheel, the reverse winding wheel, the driven fluted disc, the forward winding through hole and the winding roller, when the equipment is used, a material for packaging is divided into six parts which are respectively inserted from the through holes in the side end of the equipment main body, so that the material is wound on the periphery of the winding roller after passing through the forward winding through hole and the reverse winding through hole; the first motor and the second motor drive the forward driving gear and the reverse driving gear correspondingly, so that the driven fluted disc and the driven gear ring drive the forward winding wheel and the reverse winding wheel to rotate correspondingly, and at the moment, the six sets of packaging materials are wound around the outer portion of the lubricating oil barrel through separation of forward winding through holes and reverse winding through holes.
Owner:JIANGSU JAMA LUBRICANT

Adjustable slitting equipment for PCBI fixing adhesive tape

The utility model relates to the technical field of packaging material processing, and discloses an adjustable slitting device for PCBI (Printed Circuit Board Interface) fixing adhesive tape, which comprises two machine body shells, round rods are rotatably connected to close sides of the two machine body shells, a force bearing plate is fixedly connected to the outer sides of the round rods, a protective cover is fixedly connected to the left side of the force bearing plate, and the protective cover is fixedly connected to the right side of the machine body shells. A motor is fixedly connected to the interior of the protective cover, a driving wheel is fixedly connected to the driving end of the motor, a belt is rotatably connected to the outer side of the driving wheel, a threaded rod is rotatably connected to the other end of the belt, a fixing block is in threaded connection to the outer side of the threaded rod, and two supporting blocks are rotatably connected to the two ends of the threaded rod. According to the utility model, the motor drives the threaded rod to rotate, is matched with the thread of the fixed block, pushes the sliding plate to move up and down, drives the limiting column to slide along the groove of the sliding plate, and is linked with the blade to adjust the distance, so that the slitting precision and flexibility are improved, the waste is reduced, the cost is reduced, and the efficiency is improved.
Owner:DAYI ELECTRONIC SICENCE & TECH DONGGUAN CO LTD

Feeding structure of carton nailing device

The utility model relates to the technical field of packaging material production, and provides a feeding structure of a carton nailing device, which comprises two first vertical sliding frames, and a first upper plate position is formed between the two first vertical sliding frames; the number of the second vertical sliding frames is two, the second vertical sliding frames are located on one longitudinal side of the first vertical sliding frame, and a second upper plate position is formed between the two second vertical sliding frames. A first edge folding position is formed between the first vertical sliding frame and the second vertical sliding frame which are longitudinally adjacent; the first feeding frame is arranged on the machine body, the first feeding frame is provided with a first feeding inlet and a first feeding outlet, the first feeding outlet leads to the first plate feeding position, the first feeding frame is provided with a first material guiding inclined plane, and the height of the first material guiding inclined plane is gradually reduced from the first feeding inlet to the first feeding outlet. By means of the technical scheme, the problem that in the prior art, good and efficient automatic feeding of a carton nailing device is difficult to achieve is solved.
Owner:TANGSHAN SHIYUN TECH CO LTD

Covering materials and packaging materials

A lid material 30 for sealing a containing portion 21 of a containing container 20, the lid material including: a base layer 35; a circuit pattern 32 provided on the base layer 35 and having a wiring path configured to be broken when the containing portion is opened; a resin layer 37 covering the circuit pattern 32 from a side opposite the base layer; and a heat adhesive layer 31 configured to be heat-adhered to the containing container 20. The wiring path is provided with a terminal portion configured to be connected to an external device 40 for detecting the breakage. The resin layer 37 is divided into a first region 37A1 covering the terminal portion and a second region 37A2 covering a portion other than the terminal portion. A thickness T2 of the second region 37A2 of the resin layer 37 is greater than a thickness T1 of the first region.
Owner:UACJ CORP

Method for manufacturing packaging material and method for manufacturing package

To suppress, even when a content to be packaged is a highly permeable content, a decrease in laminate strength due to an influence thereof.SOLUTION: A production method of a packaging material includes: forming a gas barrier vapor-deposited layer comprising an inorganic compound on a substrate; forming, on the gas barrier vapor-deposited layer, a gas barrier coating layer formed by using a composition comprising one or more compounds selected from a metal alkoxide, a hydrolysate of metal alkoxide and a polymer of metal alkoxide, and a hydroxy group-containing high polymer compound; applying an aqueous medium coating solution comprising an acid-modified polyolefin resin and a silane coupling agent onto the gas barrier coating layer, and heating and drying the coating layer to form an adhesive layer; and laminating a polyolefin sealant layer on the adhesive layer by an extrusion lamination method at an extrusion temperature of 250°C-330°C. An applied amount of the adhesive layer after drying is 0.1-2.0 g / m2.SELECTED DRAWING: Figure 2
Owner:TOPPAN HOLDINGS INC

Multilayer film, packaging material and package

The present disclosure relates to a multilayer film, which successively has: a first outer layer containing a propylene homopolymer (A) and a propylene-ethylene random copolymer (B) as a heat-seal layer; an inner layer containing a propylene-ethylene block copolymer (C) and an ethylene-propylene copolymer elastomer (D); and a second outer layer containing the propylene homopolymer (A) and the propylene-ethylene random copolymer (B), wherein at least any one of the first outer layer, the inner layer, and the second outer layer further contains a polyphenol compound.
Owner:TOPPAN HOLDINGS INC

Heat-shrinkable polyester film, heat-shrinkable label, and packaging material

To provide a heat-shrinkable polyester-based film that has a high heat shrinkage rate in the main shrinkage direction and can be recycled together with used beverage plastic bottles to obtain good recycled PET resin.SOLUTION: A heat-shrinkable polyester-based film contains: in 100 mol% of the dicarboxylic acid component, dicarboxylic acid of 95 mol% or more and 100 mol% or less and isophthalic acid of 0 mol% or more and 5 mol% or less; in a total ester unit 100 mol%, an ethylene terephthalate unit of 85 mol% or more and 98 mol% or less; and in 100 mol% of a polyhydric alcohol component, diethylene glycol of 2 mol% or more and 15 mol% or less. heat-shrinkable polyester-based film having a predetermined hot water heat shrinkage rate, melts the film using a differential scanning calorimeter (DSC), and then quenches and heats the same again, and a melting peak temperature, a crystallization calorific value, and a melting calorimetric value are measured and all of these fall within a predetermined range.SELECTED DRAWING: None
Owner:TOYOBO CO LTD

Heat-seal packaging material

The present invention relates to a method of manufacturing a heat-seal packaging material (1) comprising: providing a support layer (2b) comprising paper (2a), applying a first barrier coating composition (7) in the form of an aqueous dispersion, thereby forming a first barrier coating (4) comprising at least 45% by weight of a binder based on the total dry weight of the first barrier coating (4), and applying a second barrier coating composition (7) in the form of an aqueous dispersion, thereby forming a second barrier coating (4) comprising at least 45% by weight of a binder based on the total dry weight of the first barrier coating (4). Applying a second barrier coating composition (8) to form a second barrier coating layer (5) wherein the second barrier coating composition (8) comprises a dispersed heat-sealing polymer which comprises at least 45% by weight of the total dry weight of the second barrier coating layer (5). The invention also relates to a heat-sealing packaging material, to a package comprising the heat-sealing packaging material, and to the use of the heat-sealing packaging material (1) in a package.
Owner:UPM KYMMENE OYJ