CN111099106A - Packaging sheet set - Google Patents
Packaging sheet set Download PDFInfo
- Publication number
- CN111099106A CN111099106A CN202010011452.5A CN202010011452A CN111099106A CN 111099106 A CN111099106 A CN 111099106A CN 202010011452 A CN202010011452 A CN 202010011452A CN 111099106 A CN111099106 A CN 111099106A
- Authority
- CN
- China
- Prior art keywords
- sheets
- sheet
- transverse
- cut
- cuts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 27
- 239000011091 composite packaging material Substances 0.000 claims abstract description 66
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 63
- 238000005520 cutting process Methods 0.000 claims description 13
- 238000004078 waterproofing Methods 0.000 claims 1
- 101100008048 Caenorhabditis elegans cut-4 gene Proteins 0.000 description 16
- 230000004888 barrier function Effects 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- 239000000565 sealant Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 7
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 235000013361 beverage Nutrition 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 238000007373 indentation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 3
- 239000004712 Metallocene polyethylene (PE-MC) Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 229910052809 inorganic oxide Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 229920006122 polyamide resin Polymers 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 235000021056 liquid food Nutrition 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 235000021057 semi-liquid food Nutrition 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 235000013618 yogurt Nutrition 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
Abstract
The invention provides a packaging sheet set, which comprises a plurality of sheets made of composite packaging materials, wherein each sheet is a unit for forming an individual package, the sheets are provided with a base layer, a printing layer and a waterproof layer from inside to outside, and transverse seals of the sheets are provided with notches. The sealed package made of the packaging sheet material group can help consumers to open more easily and conveniently without tools or excessive strength, and is suitable for more occasions and people.
Description
Technical Field
The present invention relates to a packaging sheet set, in particular to a packaging sheet set for liquid beverage packaging.
Background
Liquid foods, such as milk, yogurt, and semi-liquid foods, such as fruit juices, are commonly sold in small volume sealed packages. For liquid or semi-liquid food products, current sealed packages are made of a paper-based composite packaging material having a paper fibre core surrounded by one or more layers of barrier material, such as a polymer coating and/or a metal film, to obtain a composite packaging material. The barrier material serves to protect the core material from contact with the contained product and also protects the product from the gases and moisture surrounding the sealed package.
The composite packaging material has a plurality of units for forming individual packages, which can be filled directly from a material roll of the composite packaging material to form sealed packages; the web of composite packaging material may also be slit into sheets or groups of sheets, each sheet being a unit forming individual sealed packages, from which sheets are filled and formed into finished sealed packages.
In the coiled material filling equipment, a composite packaging material coil is firstly coiled and placed on a filling machine, is sterilized, is gradually formed into a cylindrical material barrel through each stage of forming mechanism, and then is firmly sealed together at the longitudinal two sides of the material barrel when passing through a longitudinal sealing mechanism, namely the material barrel is longitudinally sealed. Liquid such as milk, beverage and the like is guided to the inner space of the material cylinder which is longitudinally sealed through a vertical material filling pipe, then a transverse sealing mechanism of the filling equipment transversely seals the material cylinder at regular intervals, namely, the material cylinder is transversely sealed at the transverse sealing position, and the material cylinder is divided into independent sealed packages after transverse sealing. Common sealing packages in the market generally comprise a bag-shaped pillow package (which is not required to be shaped after being transversely sealed and cut) or a box-shaped brick package (which is shaped after being transversely sealed and cut) according to the shape of a container.
In sheet-filling plants, the packaging material is not a web but a group of sheets preformed from a composite packaging material, each sheet being a unit for forming individual packages, which is pre-folded into a tube shape and each sheet is longitudinally sealed already before filling, is fed in the form of a paper tube, is bottom-sealed and top-sealed in a filling machine and is then formed. Specifically, the longitudinally sealed sheets are prefabricated, placed into a sheet bin, withdrawn one by a sheet aspirator, opened to form a bottomless, lidless, rectangular paper tube, pushed onto a forming rod, the sealed base portion of the paper tube is activated with hot air, the bottom is folded by a rotary cross folder and a longitudinal folder, and pressure sealed by a specially designed pressure member to form a bottom-sealed, open-topped carton, the bottom of the carton after sealing being slightly concave, so that the carton can stand upright and out of the way after being filled with contents. The filling of the contents through the top of the carton is controlled and monitored by an inductive flow measurement system to ensure high filling accuracy. After filling, the carton is sealed at the top sealing station under aseptic conditions. Steam injection system flows and spouts steam into the carton before the carton top is sealed to reduce the headspace in the carton to heat the carton in order to seal, simultaneously later stage because steam cooling makes the indent behind the shaping of carton top, and the carton outward appearance is more regular. When the opening is sealed, the ultrasonic welding device vibrates at high frequency, so that the inner layer PE at the transverse sealing position at the top of the paper box is melted, and the paper box is firmly sealed after being compressed and isolated from the outside air. At the top forming station, the sealed transverse top seal of the carton is folded, the PE at the corresponding positions of the triangular area at the top of the carton and the side surface of the triangular area is activated by hot air, and the activated PE is pressed by a folding claw and stuck together to complete the carton forming.
In the prior art, the mode of opening pillow bags or brick bag type sealed packages is that a suction pipe and a suction pipe hole are arranged on the sealed packages in advance, or a cover is arranged and a hole is punched, so that extra accessories are needed and the production process is increased. The sealed package without the opening device is usually opened by means of sharp tools such as a knife and a scissors due to the tough material of the composite packaging material, which brings inconvenience to the use.
Disclosure of Invention
The invention mainly aims to provide a packaging sheet set, and the sealed package produced by using the packaging sheet set can solve the problems, and a consumer can easily and conveniently open the sealed package made of the packaging sheet set in a relatively economic mode.
According to one aspect of the present invention, there is provided a packaging sheet set comprising a plurality of sheets of composite packaging material, each sheet being a unit for forming individual packages, the sheets having, from the inside outwards, a base layer, a printed layer and a waterproof layer, characterised in that the transverse seals of the sheets are provided with cuts.
According to a preferred embodiment of the invention, the cut-outs are provided at the upper and/or lower transverse seals of the sheet.
According to a preferred embodiment of the invention, the cuts are arranged in pairs, each pair of cuts being distributed symmetrically about one of the transverse sealing fold lines of the sheet.
According to a preferred embodiment of the invention, the number of incisions is an even number.
According to a preferred embodiment of the invention, the shape of the cut-out is an inverted triangle, a straight line or a semicircle.
According to a preferred embodiment of the invention, the position of the cut is printed with an indication mark below it.
According to a preferred embodiment of the invention, the cuts are made after the composite packaging material has been compounded, before it is cut into sheets, or after the composite packaging material has been compounded and cut into sheets.
According to a preferred embodiment of the invention, the incisions are formed by laser or mechanical cutting of the composite packaging material or sheet.
According to a preferred embodiment of the invention, the depth of the cut does not exceed 1/2 the width of the bond at the transverse seal of the sheet.
According to a preferred embodiment of the invention, the cuts are not at the longitudinal seal of the sheet, nor at the transverse seal where the longitudinal seal is to be glued, and not at the transverse seal of the sheet where the fold is to be made.
The utility model provides a packing sheet group is provided with the incision in horizontal seal department, and the user can open the sealed package that from this packing sheet made from the incision department easily, need not with the help of other instruments, more saves trouble convenient and environmental protection.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a perspective view of a composite packaging material according to an embodiment of the present invention.
Fig. 2 shows a schematic view of a packaging sheet made of the composite packaging material according to the invention.
Fig. 3 shows a schematic view of a sealed package made of the composite packaging material according to the invention.
Fig. 4 is a schematic cross-sectional view of a composite packaging material according to an embodiment of the present invention.
Reference numerals
1-composite packaging material 2-unit 3-transverse sealing to-be-folded line 4-notch
5-upper transverse sealing position 6-lower transverse sealing position 7-longitudinal crease line 8-oblique crease line
9-sealed package 10-sheet 11-indicator 114-sealant layer
115-gas barrier layer 111-base layer 112-printing layer 113-waterproof layer
Detailed Description
The technical means adopted by the invention to achieve the preset object are further described below by combining the drawings and the preferred embodiments of the invention.
Fig. 1 is a perspective view of a composite packaging material 1 according to an embodiment of the present invention. The composite packaging material 1 has a continuous plurality of units 2 for forming individual packages. Fig. 2 shows a schematic view of sheets 10 of composite packaging material 1 according to an embodiment of the invention, each sheet 10 being a unit 2. Fig. 3 shows a schematic view of a sealed package 9 made of the composite packaging material 1 according to an embodiment of the present invention. The composite packaging material 1 can be delivered from a factory in a roll form as required to be adapted to a coil filling machine to finally form a sealed package 9; it is also possible to cut the sheets 10 according to each unit 2 before shipment to adapt the sheet filling machine to the final formation of the sealed packages 9.
The composite packaging material 1 is provided with a cut 4 at the transverse seal of each unit 2. Specifically, the cuts 4 in the composite packaging material 1 are located at the transverse seals of the units 2, the upper edge and the lower edge of each unit 2 on the composite packaging material 1 being connected end to end with the previous unit 2 and the next unit 2, respectively, and the transverse seals are the sections with a certain width located at the upper edge and the lower edge of each unit 2. The longitudinal edge of one side of unit 2 is also left with a certain width as a longitudinal seal during sealing, and composite packaging material 1 is sealed in an overlapping manner at the longitudinal seal of unit 2 during filling.
The material roll of the composite packaging material 1 is installed on a coiled material filling device, and is gradually formed into a cylindrical material cylinder through each stage of forming mechanism after being sterilized; then, the longitudinal sealing mechanism firmly seals the longitudinal edges at the longitudinal sealing positions of the two sides of the material cylinder together, namely longitudinal sealing; liquids such as milk and beverages are guided into the inner space of the longitudinally sealed material cylinder through a vertical material filling pipe, and then transverse sealing mechanisms of the filling equipment heat and clamp and seal transverse seals at two ends of the unit 2 at regular intervals, so that the material cylinder is sealed in the transverse direction, namely the transverse seals. The transverse seals are simultaneously cut to separate the continuous web of material into individual sealed packages 9.
The cuts 4 on the composite packaging material 1 are positioned at the transverse sealing position of each unit 2, the cuts 4 are arranged in pairs at the transverse sealing position, the number of the cuts 4 is even, each pair of the cuts 4 is symmetrically distributed by taking one of the transverse sealing waiting folding lines 3 on each unit 2 as an axis, after each unit 2 is transversely sealed to form a sealed package 9, each pair of the cuts 4 are overlapped to form a through opening at the transverse sealing position.
If the produced sealed package 9 is a bag-shaped pillow bag, the transverse sealing waiting folding line 3 is two side folding lines at the transverse sealing position after sealing, namely two folding lines for folding and carrying out transverse bonding sealing after the composite packaging material 1 is longitudinally sealed.
If the produced sealed packages 9 are of the box-like, erectable package type, such as brick-packs, drilled-packs, etc., a diagonal crease line 8 and a number of longitudinal crease lines 7 running through the cells 2 in parallel to each other in the longitudinal direction are impressed on each cell 2 of the composite packaging material 1. The transverse sealing waiting folding line 3 is also corresponding to two side folding lines at the transverse sealing position after sealing, namely two folding lines which are folded and transversely bonded and sealed after the longitudinal sealing of the composite packaging material 1, and can also be regarded as a connecting line which is formed by the intersection point of the oblique crease lines 8 on the unit 2 and the corresponding point of the edge and is parallel to the longitudinal crease line 7, and an indentation can be formed in advance at the position of the transverse sealing waiting folding line 3. For brick or drill bales, the individual sealed packages 9 are cut and then folded further. The sealed transverse sealing part is folded to form a folding edge of the sealed package 9, and the folding edge is folded along the oblique crease line 8 to form a folding angle of the sealed package 9. The folded angle of the upper transverse sealing position 5 is positioned at two sides of the sealed package 9 after being formed, and the folded edge or the folded angle of the lower transverse sealing position 6 is positioned at the bottom of the sealed package 9 after being formed. After the sealed package 9 is formed, the cut 4 may be located at the transverse seal corresponding to the top or bottom folded edge of the sealed package 9, or may be located at the transverse seal corresponding to the top or bottom folded edge of the sealed package 9.
The cut-outs 4 may be provided at the upper cross seal 5 and/or the lower cross seal 6 of the unit 2. The cut-outs 4 are preferably provided at the upper transverse seals 5. As shown in fig. 2, a cut 4 may be similarly provided at the lower transverse seal 6. It will be understood by those skilled in the art that the cut-outs 4 may be provided in pairs at both the upper and lower cross seals 5, 6, or only at the upper or lower cross seal 5, 6, so that a through opening is formed at both the upper and lower cross seals 5, 6, or only at the upper or lower cross seal 5, 6 after the cross sealing.
FIG. 4 shows the present inventionA schematic cross-sectional view of an embodiment of a composite packaging material 1 or sheet 10 is shown. The composite packaging material 1 is formed by compounding a plurality of layer structures, and the description of the relative position from top to bottom in the description of the layer structures of the composite packaging material 1 related to the invention corresponds to the description of the relative position from outside to inside when the composite packaging material 1 is used for product packaging. The composite packaging material 1 generally comprises a 5-layer structure, and the composite packaging material 1 comprises a sealant layer 114, a gas barrier layer 115, a base layer 111, a printing layer 112 and a waterproof layer 113 in this order from the inside to the outside. The base layer 111 is generally a paper base material, and the gas barrier layer 115 and the sealant layer 114 are disposed in this order below the base layer 111. Gas barrier layer 115 includes, but is not limited to, aluminum foil, ethylene vinyl alcohol copolymer (EVOH), polyvinyl alcohol (PVOH), inorganic oxides (e.g., SiO)2) Or a polyamide resin. Sealant layer 114 is a thermoplastic resin, preferably containing a polyolefin, including but not limited to Linear Low Density Polyethylene (LLDPE), ultra low density polyethylene, metallocene polyethylene, or mixtures thereof. The outermost waterproof layer 113 is typically polyethylene. The printing layer 112 is a layer of a design or characters printed with ink on the base layer 111. In the production stage of the composite packaging material 1, the printed layer 112 is printed on the base layer 111, and the gas barrier layer 115, the sealant layer 114 and the outermost waterproof layer 113 are compounded on the composite production line (the process sequence is not limited).
The cuts 4 are formed after the compounding of all the layer structures of the composite packaging material 1 is finished, so that the cuts 4 arranged in pairs form a through opening after transverse sealing, otherwise, if the compounding of all the layer structures is not finished, the cuts can be cut, and the two superposed cuts 4 after transverse sealing can be blocked, so that the difficulty in tearing the cuts 4 is increased. After the compounding is completed, the position of each unit 2 is positioned by the notch 4 positioning device according to the positioning mark, the indentation mark or other types of marks on the composite packaging material 1, and the notch 4 is formed on the composite packaging material 1 by a notch cutting device, which may be a laser device, cutting by laser or a mechanical device, cutting by a cutter or the like, and forming the notch 4 at a predetermined cutting position.
Since the transverse seals are formed by folding the upper and lower edges of the cells 2 in half along the two transverse sealing fold lines 3 and sealing, the cuts 4 are preferably arranged in pairs, i.e. an even number of cuts 4, each pair of cuts 4 being arranged symmetrically about one of the transverse sealing fold lines 3 of each cell 2, so that after transverse sealing, the cuts 4 of each pair overlap to form a through opening at the transverse seal. The cut 4 cannot be provided at the longitudinal seal of the unit 2, at the point where the unit 2 transverse seal is to be glued to the longitudinal seal, and at the transverse seal fold line 3, otherwise it is difficult to tear the package through the cut 4.
The slits 4 may be cut into various shapes such as an inverted triangle, a straight line, a semicircle, or the like, as needed. The notch 4 can be vertically arranged (i.e. the notch or the symmetry axis of the notch is perpendicular to the horizontal direction) at the transverse seal, or obliquely arranged (i.e. the symmetry axis of the notch or the notch has an angle with the horizontal direction) at the transverse seal; in order to prevent the sealing performance of the package from being affected, the height of the cut 4 in the vertical direction, i.e. the depth of the cut, is preferably not more than 1/2 of the bonding width at the transverse seal; in order to tear the notch 4 more easily, an easy-to-tear line may be further formed below the notch 4 by laser drilling, and the easy-to-tear line may be configured to match the shape of the notch 4, such as being vertically configured below the notch 4 at the transverse seal or being obliquely configured at the same angle as the notch 4. The width of the incision 4 is typically 0.1-4mm and an indicator 11 may be provided adjacent the incision 4 to indicate or inform the presence or manner of use of the incision 4. The indication mark 11 can be indicated by using figures, patterns, characters or a combination of the figures and the patterns, and the indication mark 11 can be printed below the position of the notch 4, so that a consumer can find the indication mark conveniently in time.
The invention provides a packaging sheet set, which comprises a plurality of sheets 10 formed by cutting the composite packaging material 1. As shown in fig. 2, each sheet 10 is a unit 2 for forming individual packages, the sheet 10 having, from the inside to the outside, a base layer 111, a printed layer 112 and a waterproof layer 113, and a cut 4 is provided at the transverse seal of the sheet 10. The horizontal seal is a section having a certain width and located at the upper and lower edges of each sheet 10 in the horizontal direction. The longitudinal edge of one side of the web 10 is also left with a certain width as a longitudinal seal during sealing, the longitudinal seal of the web 10 is already overlapped and sealed before filling, one transverse seal is folded and sealed during filling, and the other transverse seal is folded and sealed after filling, thereby forming the sealed package 9.
The cuts 4 at the transverse seals of the sheets 10 are arranged in pairs, the number of the cuts 4 is even, each pair of the cuts 4 is symmetrically distributed by taking one of the transverse seal waiting folding lines 3 on the sheets 10 as an axis, so that after each sheet 10 forms a sealed package 9, each pair of the cuts 4 are overlapped at the transverse seals to form a through opening. The transverse sealing treatment folding line 3 is a folding line at two sides of the sealed transverse sealing position of the sheet 10, namely two folding lines for transverse bonding sealing after the longitudinal sealing of the sheet 10. Also impressed on the sheet 10 are oblique creasing lines 8, and a number of longitudinal creasing lines 7 running through the sheet 10, longitudinally parallel to each other. The transverse sealing waiting folding line 3 can also be regarded as a connecting line which is formed by the intersection point of the oblique crease lines 8 on the sheet 10 and the corresponding point of the transverse edge and is parallel to the longitudinal crease line 7, and the crease can be formed in advance at the position of the transverse sealing waiting folding line 3. The sealed transverse sealing position of the sheet material 10 is folded to form a folding edge of the sealed package 9, the upper transverse sealing position 5 is folded along the oblique crease line 8 to form a folding angle of the sealed package 9, and the folding edge formed by the lower transverse sealing position 6 is positioned at the bottom of the sealed package 9 after being folded. After the sheet 10 is formed into the sealed package 9, the cut 4 may be located at the transverse seal corresponding to the folded edge or the folded corner at the top of the sealed package 9, or may be located at the transverse seal corresponding to the folded edge at the bottom of the sealed package 9.
The cut-outs 4 in the sheet 10 are provided at the upper and/or lower transverse seals 5, 6 of the sheet 10. The cuts 4 are preferably provided in pairs at the upper transverse seal 5 of the sheet 10, as shown in fig. 2, or the cuts 4 may be provided in pairs at the lower transverse seal 6 at the same time, so that the sealed package 9 formed from the sheet 10 forms a through opening at both the upper transverse seal 5 and the lower transverse seal 6; alternatively, the cut 4 may be provided only in pairs at the upper transverse seal 5 or the lower transverse seal 6 of the sheet 10, so that the sealed package 9 formed from the sheet 10 has a through opening only at the upper transverse seal 5 or the lower transverse seal 6.
The sheet 10 is formed by a plurality of layers, and the description of the relative position of the layers from top to bottom corresponds to the description of the relative position of the sheet 10 from outside to inside when used for product packaging. The sheet 10 generally comprises a 5-layer structure including, in order from the inside to the outside, a sealant layer 114, a gas barrier layer 115, a base layer 111, a print layer 112, and a waterproof layer 113. The base layer 111 is generally a paper base material, and the gas barrier layer 115 and the sealant layer 114 are disposed in this order below the base layer 111. The gas barrier layer 115 includes, but is not limited to, aluminum foil, ethylene vinyl alcohol copolymer (EVOH), polyvinyl alcohol (PVOH), inorganic oxides (e.g., SiO2), or polyamide resins. Sealant layer 114 is a thermoplastic resin, preferably containing a polyolefin, including but not limited to Linear Low Density Polyethylene (LLDPE), ultra low density polyethylene, metallocene polyethylene, or mixtures thereof. The outermost waterproof layer 113 is typically polyethylene. The printing layer 112 is a layer of a design or characters printed with ink on the base layer 111. In the production stage of the composite packaging material 1, the printed layer 112 is printed on the base layer 111, and the gas barrier layer 115, the sealant layer 114 and the outermost waterproof layer 113 are compounded on the composite production line (the process sequence is not limited).
The group of packaging sheets comprises a plurality of sheets 10 cut from the composite packaging material 1, the cuts 4 being formed after the completion of the composition of all the layers of the composite packaging material 1. The cuts 4 may be made after the composite packaging material 1 is compounded and before it is cut into sheets 10; or after the composite packaging material 1 is finished and cut into sheets 10.
The notch locating device is located according to locating marks, indentation marks or other types of marks, and the notch 4 is formed by a notch cutting device, which may be a laser device, and performs cutting by laser or a mechanical device, by a cutter or the like, and the notch 4 is formed by laser or mechanical cutting of the composite packaging material 1 or the sheet 10.
The cuts 4 cannot be provided at the longitudinal seal of the sheet 10, at the transverse seal of the sheet 10 to be bonded to the longitudinal seal, and at the transverse seal of the sheet 10 to be bonded to the fold line 3, the cuts 4 being avoided at these positions in order to prevent the package from being torn open. Preferably, the depth of the cuts 4 in the sheet 10 is no more than 1/2 the width of the bond at the transverse seals of the sheet 10; in order to tear the notch 4 more easily, an easy-to-tear line may be further formed below the notch 4 by laser drilling, and the easy-to-tear line may be configured to match the shape of the notch 4, such as being vertically configured below the notch 4 at the transverse seal or being obliquely configured at the same angle as the notch 4. The width of the incision 4 is typically 0.1-4mm and an indicator 11 may be provided adjacent the incision 4 to indicate or inform the presence or manner of use of the incision 4. The indication mark 11 can be indicated by using figures, patterns, characters or a combination of the figures and the patterns, and the indication mark 11 can be printed below the position of the notch 4, so that a consumer can find the indication mark conveniently in time.
The slits 4 may be cut into various shapes such as an inverted triangle, a straight line, a semicircle, or the like, as needed. The notches 4 may be arranged vertically (i.e. the symmetry axis of the notch or notch is perpendicular to the horizontal) or obliquely (i.e. the symmetry axis of the notch or notch is at an angle to the horizontal) at the transverse seal.
The invention provides a sealed package group, which comprises a plurality of sealed packages 9 made of the composite packaging material 1 or the sheet material 10, wherein each sealed package 9 is provided with a base layer 111, a printing layer 112 and a waterproof layer 113 from inside to outside, and as shown in figure 3, a transverse sealing part of each sealed package 9 is provided with a notch 4. Each sealed package 9 is a shaped outer package which has been filled with a liquid product.
The cut 4 in the sealed package 9 is provided at the upper transverse seal 5 and/or the lower transverse seal 6 of the sealed package 9. The transverse seals are generally the horizontal upper and lower edges of the composite packaging material 1 or sheet 10 from which the sealed packages 9 are made and have a certain width, and the top and bottom of each sealed package 9 are folded after the sealed package 9 is formed.
The cuts 4 in the composite packaging material 1 or sheet 10 from which the sealed packages 9 are made are arranged in pairs, i.e. an even number of cuts 4, each pair of cuts 4 being distributed symmetrically about one of the transverse sealing fold lines 3 of the composite packaging material 1 or sheet 10 from which the sealed packages 9 are made. After forming the sealed package 9, each pair of cuts 4 is overlapped at the transverse seal of the sealed package 9 to form a through opening. And the transverse sealing waiting folding line 3 is a folding line at two sides of the transverse sealing position of the composite packaging material 1 or the sheet 10 for preparing the sealed package 9, namely two folding lines for folding and transversely bonding and sealing the sheet 10 after longitudinal sealing. After sealing, the transverse sealing position of the composite packaging material 1 or the sheet 10 is folded to form a folding edge of the sealed package 9, the folding edge of the upper transverse sealing position 5 is positioned at two sides of the sealed package 9 after forming, and the folding edge or the folding edge of the lower transverse sealing position 6 is positioned at the bottom of the sealed package 9 after forming. The formed cut 4 may be located at the transverse seal corresponding to the folded edge or the folded corner at the top of the sealed package 9, or may be located at the transverse seal corresponding to the folded edge or the folded corner at the bottom of the sealed package 9.
The cut 4 of the sealed package 9 is formed after the composite packaging material 1 is compounded and before filling; or before the composite packaging material 1 for making the sheet 10 is cut into sheets 10; or after the composite packaging material 1 used to make the sheet 10 is cut into sheets 10 and before filling.
The cut 4 of the sealed package 9 may also be made after the filling and sealing of the composite packaging material 1 or web 10 and before shaping.
The incision positioning device is positioned according to positioning marks, indentation marks or other types of marks, and the incision 4 is formed by an incision cutting device, which may be a laser device, by laser cutting, or a mechanical device, by cutting with a knife or the like, and the incision 4 is formed by laser or mechanical cutting of the composite packaging material 1 or the sheet 10 or the sealed package 9. The shape of the cut 4 in the sealed package 9 may be inverted triangular, rectilinear, semicircular, or the like.
The cut 4 cannot be provided at the longitudinal seal of the sealed package 9 nor at the transverse seal fold line 3 of the sealed package 9. Preferably, the depth of the cut 4 in the sealed package 9 does not exceed 1/2 the width of the adhesive bond at the transverse seal of the sealed package 9; in order to tear the notch 4 more easily, an easy-to-tear line may be further formed below the notch 4 by laser drilling, and the easy-to-tear line may be configured to match the shape of the notch 4, such as being vertically configured below the notch 4 at the transverse seal or being obliquely configured at the same angle as the notch 4. The width of the incision 4 is typically 0.1-4mm and an indicator 11 may be provided adjacent the incision 4 to indicate or inform the presence or manner of use of the incision 4. The indication mark 11 can be indicated by using figures, patterns, characters or a combination of the figures and the patterns, and the indication mark 11 can be printed below the position of the notch 4, so that a consumer can find the indication mark conveniently in time.
The composite packaging material 1 or the sheet 10 from which the sealed package 9 is made is compounded from a plurality of layer structures, and the description of the relative position from top to bottom of the layer structures corresponds to the description of the relative position from outside to inside of the sheet 10. The sheet 10 generally comprises a 5-layer structure including, in order from the inside to the outside, a sealant layer 114, a gas barrier layer 115, a base layer 111, a print layer 112, and a waterproof layer 113. The base layer 111 is generally a paper base material, and the gas barrier layer 115 and the sealant layer 114 are disposed in this order below the base layer 111. The gas barrier layer 115 includes, but is not limited to, aluminum foil, ethylene vinyl alcohol copolymer (EVOH), polyvinyl alcohol (PVOH), inorganic oxides (e.g., SiO2), or polyamide resins. Sealant layer 114 is a thermoplastic resin, preferably containing a polyolefin, including but not limited to Linear Low Density Polyethylene (LLDPE), ultra low density polyethylene, metallocene polyethylene, or mixtures thereof. The outermost waterproof layer 113 is typically polyethylene. The printing layer 112 is a layer of a design or characters printed with ink on the base layer 111. In the production stage of the composite packaging material 1, the printed layer 112 is printed on the base layer 111, and the gas barrier layer 115, the sealant layer 114 and the outermost waterproof layer 113 are compounded on the composite production line (the process sequence is not limited).
The invention is particularly suitable for the packaging of liquid beverages, but the invention is not limited thereto, but it is also suitable for other paper-based packaged products, such as food products, medical products.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A set of packaging sheets comprising a plurality of sheets made of composite packaging material, each sheet being a unit for forming individual packages, said sheets having, from the inside outwards, a base layer, a printing layer and a waterproofing layer, characterized in that the transverse seals of the sheets are provided with cuts.
2. A set of packaging sheets as claimed in claim 1, wherein the cut-outs are provided at an upper and/or a lower transverse seal of the sheets.
3. A group of packaging sheets as claimed in claim 2, wherein said cuts are provided in pairs, each pair of said cuts being arranged symmetrically about one of the transverse sealing fold lines of said sheets.
4. A set of packaging sheets according to any one of claims 1-3, wherein the number of cuts is an even number.
5. A set of packaging sheets according to claim 1 wherein the cut-out is in the shape of an inverted triangle, a straight line or a semi-circle.
6. A set of packaging sheets according to claim 1 wherein the cut-outs are printed with an indication mark below the location of the cut-outs.
7. A set of packaging sheets according to any one of claims 1-3, wherein the cuts are made after the composite packaging material has been compounded and before it is cut into sheets; or after the composite packaging material is completely compounded and cut into sheets.
8. A set of packaging sheets according to claim 1, wherein the cuts are formed by laser or mechanical cutting of the composite packaging material or the sheets.
9. A group of packaging sheet material as claimed in claim 1 wherein the depth of the cut does not exceed 1/2 of the width of the bond at the transverse seal of the sheet material.
10. A set of packaging sheets as claimed in claim 1 or 2, wherein the cuts are not at the longitudinal seal of the sheet, nor at the transverse seal where the longitudinal seal is to be glued, and not at the transverse seal where the fold is to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011452.5A CN111099106A (en) | 2020-01-06 | 2020-01-06 | Packaging sheet set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010011452.5A CN111099106A (en) | 2020-01-06 | 2020-01-06 | Packaging sheet set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111099106A true CN111099106A (en) | 2020-05-05 |
Family
ID=70425920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010011452.5A Pending CN111099106A (en) | 2020-01-06 | 2020-01-06 | Packaging sheet set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111099106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099084A (en) * | 2020-01-06 | 2020-05-05 | 纷美(北京)贸易有限公司 | Composite packaging material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55154240A (en) * | 1979-05-08 | 1980-12-01 | Tetra Pak Int | Package |
| DE2854775A1 (en) * | 1978-12-19 | 1980-12-11 | Tetra Pak Int | Square shaped package prodn. - involves use of foldable sheets of packaging paper and triangular double layered folding tip |
| GB1589127A (en) * | 1977-05-26 | 1981-05-07 | Tetra Pak Int | Opening of packaging containers |
| JPH0986532A (en) * | 1995-09-20 | 1997-03-31 | Dainippon Printing Co Ltd | Cardboard package and manufacture thereof |
| CN106829190A (en) * | 2017-04-10 | 2017-06-13 | 纷美(北京)贸易有限公司 | Package sheet material group |
| CN212149615U (en) * | 2020-01-06 | 2020-12-15 | 纷美(北京)贸易有限公司 | Packaging sheet set |
-
2020
- 2020-01-06 CN CN202010011452.5A patent/CN111099106A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1589127A (en) * | 1977-05-26 | 1981-05-07 | Tetra Pak Int | Opening of packaging containers |
| DE2854775A1 (en) * | 1978-12-19 | 1980-12-11 | Tetra Pak Int | Square shaped package prodn. - involves use of foldable sheets of packaging paper and triangular double layered folding tip |
| JPS55154240A (en) * | 1979-05-08 | 1980-12-01 | Tetra Pak Int | Package |
| JPH0986532A (en) * | 1995-09-20 | 1997-03-31 | Dainippon Printing Co Ltd | Cardboard package and manufacture thereof |
| CN106829190A (en) * | 2017-04-10 | 2017-06-13 | 纷美(北京)贸易有限公司 | Package sheet material group |
| CN212149615U (en) * | 2020-01-06 | 2020-12-15 | 纷美(北京)贸易有限公司 | Packaging sheet set |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111099084A (en) * | 2020-01-06 | 2020-05-05 | 纷美(北京)贸易有限公司 | Composite packaging material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11299314B2 (en) | Package sleeve, package and method for manufacturing a package | |
| CA2280760C (en) | Bag-in-bag packaging system | |
| AU2001276696B2 (en) | Method of manufacturing paper packaging container and paper packaging container | |
| US3942708A (en) | Liquid and air tight package | |
| CA1109438A (en) | Packing container and a laminate for its manufacture | |
| JP5097992B2 (en) | Bag making and filling method for self-supporting packaging bags | |
| WO2007086023A1 (en) | Packaging bag with pour spout | |
| RU2680432C2 (en) | Opening device, method of manufacturing the opening device and a packing container with such an opening device | |
| EP3326797B1 (en) | Flexible containers comprising a lower base of essentially rectangular configuration, method, module and machine for their manufacture | |
| JP2002000011U (en) | Opening device for packaging containers | |
| CN212149615U (en) | Packaging sheet set | |
| CN212149527U (en) | Composite packaging material | |
| CN211520051U (en) | Sealed package group | |
| CN111099106A (en) | Packaging sheet set | |
| CN111099083A (en) | Sealed package group | |
| AU3372597A (en) | Pouch for containing liquids | |
| CN100422058C (en) | Stand-up pouch for packaging food products | |
| CN111099084A (en) | Composite packaging material | |
| US3924796A (en) | Packaging containers | |
| JP4489515B2 (en) | Perforation | |
| WO2010058422A1 (en) | A flexible package for packing a rigid/ semi rigid article/ bottle/ container | |
| WO2004078607A1 (en) | A packaging container and packaging blank | |
| CN112478418A (en) | Easy-to-open edge-inserting four-edge sealing bag and preparation method thereof | |
| US11952192B2 (en) | Standing pouch with cap on folded edge | |
| EP0811561A1 (en) | Multi-use controlled dosage sachet for liquid products |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |