US3187480A - Packaging process - Google Patents
Packaging process Download PDFInfo
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- US3187480A US3187480A US261053A US26105363A US3187480A US 3187480 A US3187480 A US 3187480A US 261053 A US261053 A US 261053A US 26105363 A US26105363 A US 26105363A US 3187480 A US3187480 A US 3187480A
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- Prior art keywords
- bath
- cartons
- waxes
- grease
- stack
- Prior art date
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- Expired - Lifetime
Links
- 238000012858 packaging process Methods 0.000 title description 2
- 239000011087 paperboard Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 18
- 239000003566 sealing material Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 10
- 239000011086 glassine Substances 0.000 claims description 8
- 239000001993 wax Substances 0.000 claims description 7
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 4
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000011084 greaseproof paper Substances 0.000 claims description 3
- 239000004200 microcrystalline wax Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 229920006163 vinyl copolymer Polymers 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 230000004888 barrier function Effects 0.000 description 20
- 239000004519 grease Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 8
- 239000011651 chromium Substances 0.000 description 7
- -1 polyethylene Polymers 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 239000004359 castor oil Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Natural products NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 3
- 239000004471 Glycine Substances 0.000 description 3
- 235000019438 castor oil Nutrition 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- WCOXQTXVACYMLM-UHFFFAOYSA-N 2,3-bis(12-hydroxyoctadecanoyloxy)propyl 12-hydroxyoctadecanoate Chemical compound CCCCCCC(O)CCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCC(O)CCCCCC)COC(=O)CCCCCCCCCCC(O)CCCCCC WCOXQTXVACYMLM-UHFFFAOYSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000019808 microcrystalline wax Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000001044 red dye Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 208000034809 Product contamination Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000015496 breakfast cereal Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019809 paraffin wax Nutrition 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 239000000344 soap Substances 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
- B65D5/0227—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 with end closures formed by inward folding of flaps and securing them by heat-sealing, by applying adhesive to the flaps or by staples
-
- 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
- B65D5/06—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 with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
- B65D5/061—Rectangular containers having a body with gusset-flaps folded inwardly beneath the closure flaps
Definitions
- Products having a relatively high grease content or being subject to moisture loss or gain are now'commonly marketed in waxed glassine or plastic bags or liners inserted into a paperboard container upon which advertising and instructive information is printed.
- the waxed glassine or, for example, polyethlyene bags are filled, sealed orV crimped, and introduced into the container by the packager.
- the waxed glassine or polyethylene bays provide the barrier which keeps the grease of the product in (where it cannot provide a path for the spoilage or contamination of the product or the containers) or the moisture of the atmosphere or product out or in, respectively, and the containers provide protection against grosser injury to the product resulting from either normal or improper handling.
- Some of the objects of the present invention are to secure a paperboard-based packaging material, design and method productive of a single unit folding carton or its equivalent having a superior grease, moisture or water, and gas transmission barrier property and other characteristics such as printability, product davor retentivity, sifting loss resistance, external odor product contamination resistance, and insect and fungal product attack resistance.
- Other objects will become evident te those skilled in the art from the following disclosure.
- the present invention encompasses a procesa made up of steps of (a) barrier coating at least one sur-- face of a paperboard web ofY sheet; (b) die cutting flat,
- folding carton blanks having free edges from the barrier coated web or sheet; (c) tightly compressing a stack of plurality of the fiat fold-ing car-ton blanks; (d) submerging the compressed stack in a bath of free edge sealing material for pre-determined dwell time; (e) removing the compressed stack from the bath; (f) forming folding cartons, wherein a barrier coated paperboard web or sheet surface is disposed interiorly, from the at folding carton blanks; (g) filling the ⁇ formed folding cartons with a product characterized by at least one of the conditions selected from a group consisting of grease-bearing, moisture-sensitivity, and ygas sensitivity; and, (h) closing the illed cartons.
- the paperboard web or sheet or, more generally, substrate is previously prepared -for printing, a-s by being ⁇ clay coated in accordance with conventional procedures, on that surface which is not to be barrier coated in accordance with the present invention or on top of one of the barrier coated surfaces.
- the die cutting step with a blank scoring step.
- a sealed free edge drying period is also ⁇ desirable'.
- the step of printing Vthe blanks on their non-barrier coated surfaces with indicia of advertising and instruction before the cartons are formed and the use ofV adhesives or heat sealing to assist in the carton closing is preferred.
- FIG. URES l shows a blank scored vertically, horizontally, and diagonally which yields the .web-cornered, especially sift-proof carton of FGURE 2 comprised-of side panels l0 and i2,
- FIG- URE 3 shows a blank scored vertically and horizontally which yields the carton of FIGURE 4 comprised of side panels 30 and 32, front panel 31, back panel 33, and glue panel 34, as Well as top closure members or flaps 35, 36, 37, and 38 and similar, unnumbered bottom closure parts.
- FIGURE shows a blank scored vertically and horizontally which yields the carton of FIGURE 6 comprised of side panels 40 and 42, front panel 41 (whereon printed instructive and advertising indicia 41a are shown), back panel 43, and glue panel 44, as well as top closure flaps, 45, 46, 47 and ears 46a and 46b and equivalent, unnumbered bottom closure portions.
- the blank of FIGURE 5 is like that of FIGURE 3 insofar as it utilizes enlarged or V-cuts to free the edges of flaps 45 and 46 from those of ears 46a and 4611 and flaps 48).
- the apparatus for submerging a stack of at folding carton blanks like those depicted in FIGURES 1 to 6 in the edge sealing bath need involve, in a bench model, nothing more than metal, expanded metal, or even plywood platens, preferably cut to conform along their peripheries with the outlines of the blanks they are to hold; mechanical, pneumatic, or hydraulic clamping means to hold the platens in place and tightly compress the stack so as to prevent seepage of the edge sealing material between the flat surfaces of the folding carton blanks: a tank for the edge sealing material; means such as a chain hoist to lower the stack into the bath and raise it out of the bath; and, preferably a bath heating unit and a bath agitation unit, e.g., a stirrer or an ultrasonic vibrator. Production models can, of course, be further rened.
- At least two classes of edge sealing materials can be employed in achieving the results of this invention.
- One class includes those agents which are inert to and do not react with the individual cellulose fibers exposed along the free edges of the paperboard carton blanks and the neighboring fibers, but, rather, have the capability of filling the interstices or voids between such fibers.
- a hydrogenated castor oil such as Archer-Daniels-Midland Companys Hydrofoil Glycerides #200 or Baker Oil Companys Castorwax falls into this class.
- the other class includes those agents which react with the individual cellulose fibers contacted and an example of such an agent is the water-soluble uorochemical chromium complex otherwise described as the chromium (Cr III) complex of N-ethyl-N-heptadecyluoro-octane sulfonyl glycine and sold by the 3M Company under the designations FC-805 Paper Chemical and Scotchgard Iust how effective a combination of the foregoing process steps and substrates, barrier coatings, folding carton blank designs, and free edge sealing materials can be is both unexpected and surprising.
- a barrier coated stock was produced by conventional 1aminating means which comprised 1b. opaque glassine/ 1.5 mil polyethylene/0.015 IPB paperboard.
- the packaging ⁇ of fiuids such as milk and dairy products derived therefrom, frozen goods such as meats, soaps and detergents, and lubricated metal parts can be advanced by one or more of the several aspects of this invention.
- a process comprising the steps of (a) disposing at least one barrier coated selected from the group consisting of paraffin waxes, microcrystalline waxes, waxes blended with polymers, vinyl co-polymer blended waxes, polyvinylidene chloride, aluminum foil, glassine, grease-proof paper, and polyolens on at least one surface of a paperboard substrate;
- the free edge sealing material is the chromium (Cr III) complex of N-ethyl- N-he-ptadecyluoro-octane sulfonyl glycine.
Description
June 8 1965 J. w. FEI-:NEY ETAL 3,187,480
PACKAGING PROCESS Filed Feb. 26, 1963 5. mw F JOSEPH W. FEENEY PAUL L. POJAWIS JAMES E. ALLENBAUG A R H JR. JoHN wMgnr/q Td.
ATTORNEY United States Patent C) 3,187,430 PACKAGENG PRCESS- Joseph W. Feeuey, Pilresvilie, Paul L Poiawis, Eaitirnore, James E. Allenhaugh, l'r., Towson, and John W.. McNair, Jr., Baltimore, Md., assignors to international Paper Company, New York, NX., a corporation of New York I Filed Feb. 26, 1963, Ser. No. 261,053 13 Ciairns. (Cl. 5ft- 29) This invention relates to packaging with paperboard in the form of folding cartions, carton lids, folders, trays, cards, and the like. More particularly, it relates to the y packaging of products having a grease content or being moisture-sensitive to a substantial degree.
Products having a relatively high grease content or being subject to moisture loss or gain, particularly shelftype foodstuff products such as cake and pie crust mixes, breakfast cereals, and the like, are now'commonly marketed in waxed glassine or plastic bags or liners inserted into a paperboard container upon which advertising and instructive information is printed. The waxed glassine or, for example, polyethlyene bags are filled, sealed orV crimped, and introduced into the container by the packager. In this type of packaging, the waxed glassine or polyethylene bays provide the barrier which keeps the grease of the product in (where it cannot provide a path for the spoilage or contamination of the product or the containers) or the moisture of the atmosphere or product out or in, respectively, and the containers provide protection against grosser injury to the product resulting from either normal or improper handling.
It is known that the bag-in-the-box variety of packaging, especially for foodstuffs, is not entirely satisfactory. The bags are difficult to fill, seal, and insert into the containers and the consumer has difficulty both in opening and re-closing this type of package, particularly where inadequacy in the re-closing can adversely affect the life of the product.
lt is also known that new advances in the art of laminating or otherwise bringing together paperboard and protective agents or barrier coatings such as parafn waxes, microcrystalline waxes, waxes blended with polymers, vinyl co-polymer blended waxes, polyvinylidene chloride, and polyolefins, have resulted in improved grease and moisture barrier characteristics for the paperboard. In'consequence, in some instances, products can be packaged safely and attractively in containers made of the augmented paperboard and without recourse to waxed glassine or plastic bags. See, for instance, U.S. Pat. Nos. 2,999,758 and 3,015,596.
Heretofore, however, there does not appear to have been developed a paperboard-based packaging material, design, or method which results in a single unit folding carton or the like having substantially equal utility for grease-bearing or exuding products and water-absorbing or water-emitting products and creating no additional problems. It has been proposed to place a barrier coating of plastic or the like on the inner wall of a paperboard folding carton to abut a greasy product and to contain the grease, but this leaves the Vouter wall of the carton and the edges thereof without the requisite resistance to grease penetration, moisture vapor transfer, or water absorption. It has been proposed to place a barrier coating on the outer wall of a paperboard folding carton for a water-absorbent product and to exclude moisture or water, but this leaves the inner wall of the carton and the edges thereof susceptible to attack by any fats or greases normally in the product and leads to dithculties in achieving and maintain-ing attractive printing or decoration of the outer wall. lt has been proposed to Patented' une 3V i965 lCev place barrier coatings on both the inner and outer walls of paperboard folding cartons, but this tends to diminish or obviate the economic advantage sought by the initial Y resort to paperboard as the carton material.
Or, it results in a packaging material inferior in performance to the bag-in-the-box combination.
Some of the objects of the present invention are to secure a paperboard-based packaging material, design and method productive of a single unit folding carton or its equivalent having a superior grease, moisture or water, and gas transmission barrier property and other characteristics such as printability, product davor retentivity, sifting loss resistance, external odor product contamination resistance, and insect and fungal product attack resistance. Other objects will become evident te those skilled in the art from the following disclosure.
Broadly, the present invention encompasses a procesa made up of steps of (a) barrier coating at least one sur-- face of a paperboard web ofY sheet; (b) die cutting flat,
folding carton blanks having free edges from the barrier coated web or sheet; (c) tightly compressing a stack of plurality of the fiat fold-ing car-ton blanks; (d) submerging the compressed stack in a bath of free edge sealing material for pre-determined dwell time; (e) removing the compressed stack from the bath; (f) forming folding cartons, wherein a barrier coated paperboard web or sheet surface is disposed interiorly, from the at folding carton blanks; (g) filling the `formed folding cartons with a product characterized by at least one of the conditions selected from a group consisting of grease-bearing, moisture-sensitivity, and ygas sensitivity; and, (h) closing the illed cartons. Preferably, the paperboard web or sheet or, more generally, substrate is previously prepared -for printing, a-s by being `clay coated in accordance with conventional procedures, on that surface which is not to be barrier coated in accordance with the present invention or on top of one of the barrier coated surfaces. Also it is preferable, not to say most convenient, to accompanythe die cutting step with a blank scoring step. Again, it has been found preferable to have the bath hot and agitated during the stack submersion, so as to promote the penetration and the sealing of the free edgesby the sealing material. A sealed free edge drying period is also `desirable'. Then too, the step of printing Vthe blanks on their non-barrier coated surfaces with indicia of advertising and instruction before the cartons are formed and the use ofV adhesives or heat sealing to assist in the carton closing is preferred.
Among the grease, moisture, yand gas barrier coatings found useful in the practice of the present invention are, and these are cited from a broad grouping only for example, low, medium, and high density polyethylene, polyvinylidene chloride, aluminum foil, grease-proof paper, glassine, alone or in combination with each other or laminating-promoting agents. These materials were laid down in thicknesses of from about 0.0001" to 0.0015 on paperboards having thicknesses of from about 0.013" to 0.24" and made commercially available by International Y Paper Company under the trademarks Mosscoatj Snoorite, lPBf and IPXl These boards are all clay coated'for printing purposes and made fromv bleached sulfate pulp -or' other mixed virgin pulps, but they vary in density.
Among the folding carton blank designs having particular utility in accordance with the present invention are the three depicted in the plan views of attached FIG- URES l, 3 and 5 and the isometric views of the cartons [formed therefrom in FIGURES 2, 4, and 6.- FIGURE l shows a blank scored vertically, horizontally, and diagonally which yields the .web-cornered, especially sift-proof carton of FGURE 2 comprised-of side panels l0 and i2,
To date, the blank and carton of FIGURES 5 and 6 have given the best results under this invention. However, all of the blanks have in common the structural feature of free edges, i.e., exterior edges nowhere impinging upon or impinged upon by other edges of the same blank.
The apparatus for submerging a stack of at folding carton blanks like those depicted in FIGURES 1 to 6 in the edge sealing bath need involve, in a bench model, nothing more than metal, expanded metal, or even plywood platens, preferably cut to conform along their peripheries with the outlines of the blanks they are to hold; mechanical, pneumatic, or hydraulic clamping means to hold the platens in place and tightly compress the stack so as to prevent seepage of the edge sealing material between the flat surfaces of the folding carton blanks: a tank for the edge sealing material; means such as a chain hoist to lower the stack into the bath and raise it out of the bath; and, preferably a bath heating unit and a bath agitation unit, e.g., a stirrer or an ultrasonic vibrator. Production models can, of course, be further rened.
At least two classes of edge sealing materials can be employed in achieving the results of this invention. One class includes those agents which are inert to and do not react with the individual cellulose fibers exposed along the free edges of the paperboard carton blanks and the neighboring fibers, but, rather, have the capability of filling the interstices or voids between such fibers. A hydrogenated castor oil such as Archer-Daniels-Midland Companys Hydrofoil Glycerides #200 or Baker Oil Companys Castorwax falls into this class. The other class includes those agents which react with the individual cellulose fibers contacted and an example of such an agent is the water-soluble uorochemical chromium complex otherwise described as the chromium (Cr III) complex of N-ethyl-N-heptadecyluoro-octane sulfonyl glycine and sold by the 3M Company under the designations FC-805 Paper Chemical and Scotchgard Iust how effective a combination of the foregoing process steps and substrates, barrier coatings, folding carton blank designs, and free edge sealing materials can be is both unexpected and surprising. For example, a barrier coated stock was produced by conventional 1aminating means which comprised 1b. opaque glassine/ 1.5 mil polyethylene/0.015 IPB paperboard. About 150 carton blanks conforming to FIG. 5 were cut from such stock and stacked. Then, the stack was compressed under about 20 lbs. per. sq. in. pressure between two platens and lowered into a bath of FC-SOS Paper Chemical. The temperature of the bath was about F. and it was continuously agitated during the submersion of the stock in the bath. The submersion lasted approximately 10 seconds. The stack was then withdrawn from the bath and the free edges of the blanks were permitted to dry for 24 hours at room temperature and 44% relative humidity. Next, cartons were formed from some of the blanks and the cartons were lled with an apple raisin cake mix, marketed by a well-known manufacturer under the Duncan Hines imprint, into which a red dye had been introduced. Thereafter, the filled cartons were placed in an oven, held at a temperature of F, for 3.25 weeks and, thereby, subjected to a shelf-life of about 13 weeks. At the end of the oven treatment, no incursion of the red dye along the edges of the cartons or on their surfaces was visible to the naked eye, though, by way of contrast, varying, but serious, degrees of such incursions-denoting edge-wicking of the grease content of the cake mix by the paperboard of the cartons-was noted in sample cartons similar in design and manufacture except for the exclusion of the barrier coating or the edge sealing or both. Additional tests, the same or closely similar in all particulars, except that Castorwax was used in place of the IFC-805 Paper Chemical and the immersion therein took place in a bath held at about 320 F. with a dwell time of about 3.5 minutes, have been conducted with generally comparable results.
There is every reason to believe that the foregoing presents or suggests solutions to problems arising in other areas of the packaging field. The packaging `of fiuids such as milk and dairy products derived therefrom, frozen goods such as meats, soaps and detergents, and lubricated metal parts can be advanced by one or more of the several aspects of this invention.
What is claimed is:
1. A process comprising the steps of (a) disposing at least one barrier coated selected from the group consisting of paraffin waxes, microcrystalline waxes, waxes blended with polymers, vinyl co-polymer blended waxes, polyvinylidene chloride, aluminum foil, glassine, grease-proof paper, and polyolens on at least one surface of a paperboard substrate;
(b) die cutting flat folding carton blanks having free edges from the barrier coated paperboard substrate;
(c) tightly compressing a stack of a plurality of the flat folding carton blanks between platens so as to have only the free edges exposed;
(d) submerging the compressed stack in a bath of free edge sealing material selected from the group consisting of water-soluble fluorochemical complexes and hydrogenated castor oils for a pre-determined dwell time;
(e) removing the compressed stack from the bath;
(f) forming cartons, wherein the barrier coated paperboard substrate surface is disposed interiorly, from the bathed flat folding carton blanks;
(g) filling the formed cartons with a product characterized by at least one of the conditions selected from the group consisting of grease-bearing, moisture-sensitivity, and gas sensitivity; and
(h) closing the lled cartons.
2. The process of claim 1 wherein the other surface of the paperboard substrate is previously prepared for printing.
3. The process of claim 1 wherein the other surface 0f the paperboard substrate is previously clay coated.
4. The process of claim `1 wherein the die cutting step is simultaneously accompanied by a carton blank scoring step.
5. The process of claim 1 wherein the compressing step is conducted with sufficient pressure to prevent seepage of the free edge sealing material between individual at carton blanks in the stack.
6. The process of claim 1 wherein the submerging step is conducted in a hot bath of the free edge sealing material.
7. The process of claim -1 wherein lthe submerging step is conducted in an agitated bath of the free edge sealing material.
8. The process of claim .-1 wherein the submerging step is conducted in an ultrasonically agitated bath of the free edge sealing material.
9. The process of claim 1 Iwherein the forming ystep is preceded by a step of printed indicia of instruction and advertising on the bathed at carton blanks.
10. The process of claim 1 wherein the free edge sealing material is the chromium (Cr III) complex of N-ethyl- N-he-ptadecyluoro-octane sulfonyl glycine.
1:1. The process of claim 1 wherein the ree edge sealing material is a hydrogenated castor oil.
1.2. The process of claim 1 lwherein the Isubmerging step is conducted in an agitated aqueous bath of the chromium (Cr III) complex of N-ethyl-N-heptadecylfiuoro-octane sulfonyl glycine having a temperature of about 75 F. for about 10 seconds.
413.v The process of `claim 1 'wherein the submerging step is conducted in an agitated bath of hydrogenated castor oil having a temperature of about 320 F. for about 3.5 minutes.
References Cited by the Examiner UNITED STATESA PATENTS 2,019,242 10/ 35 Aument 93--36 2,555,315 6/51 Carroll 93-36 2,796,007 6/ 57 Bergstein 93-36 2,984,161 5/6l Cook et al 93-36 v3,013,709 12/61 Mason 2293.1
3,055,152 9/62 Williams 53-29 v A. LOUIS MONACELL, Primary Examiner.
RAYMOND N. JONES, Examiner.
Claims (1)
1. A PROCESS COMPRISING THE STEPS OF (A) DISPOSING AT LEAST ONE BARRIER COATED SELECTED FROM THE GROUP CONSISTING OF PARAFFIN WAXES, MICROCRYSTALLINE WAXES, WAXES BLENDED WITH POLYMERS, VINYL CO-POLYMER BLENDED WAXES, POLYVINYLIDENE CHLORIDE, ALUMINUM FOIL, GLASSINE, GREASE-PROOF PAPER, AND POLYOLEFINS ON AT LEAST ONE SURFACE OF A PAPERBOARD SUBSTRATE; (D) DIE CUTTING FLAT FOLDING CARTON BLANKS HAVING FREE EDGES FROM THE BARRIER COATED PAPERBOARD SUBSTRATE; (C) TIGHTLY COMPRESSING A STACK OF A PLURALITY OF THE FLAT FOLDING CARBON BLANKS PLATENS SO AS TO HAVE ONLY THE FREE EDGES EXPOSED; (D) SUBMERGING THE COMPRESSED STACK IN A BATH OF FREE EDGE SEALING MATERIAL SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE FLUOROCHEMICAL COMPLEXES AND HYDROGENATED CASTOR OIL FOR A PRE-DETERMINED DWELL TIME; (E) REMOVING THE COMPRESSED STACK FROM THE BATH; (F) FORMING CARTONS, WHEREIN THE BARRIER COATED PAPERBOARD SUBSTRATE SURFACE IS DISPOSED INTERIORLY, FROM THE BATHED FLAT FOLDING CARTON BLANKS; (G) FILLING THE FORMED CARTONS WITH A PRODUCT CHARACTERIZED BY AT LEAST ONE OF THE CONDITIONS SELECTED FROM THE GROUP CONSISTING OF GREASE-BEARING, MOISTURE-SENSITIVITY, AND GAS SENSITIVITY; AND (H) CLOSING THE FILLED CARTONS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US261053A US3187480A (en) | 1963-02-26 | 1963-02-26 | Packaging process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US261053A US3187480A (en) | 1963-02-26 | 1963-02-26 | Packaging process |
Publications (1)
Publication Number | Publication Date |
---|---|
US3187480A true US3187480A (en) | 1965-06-08 |
Family
ID=22991762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US261053A Expired - Lifetime US3187480A (en) | 1963-02-26 | 1963-02-26 | Packaging process |
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Country | Link |
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US (1) | US3187480A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3341349A (en) * | 1966-07-11 | 1967-09-12 | Int Paper Co | Folding carton blank having edges sealed with fluorochemical complexes and hydrogenated castor oils |
US3379537A (en) * | 1964-09-14 | 1968-04-23 | Waldorf Paper Prod Co | Bulk butter package |
US3463656A (en) * | 1968-04-29 | 1969-08-26 | Int Paper Co | Folding carton blank |
DE2522546A1 (en) * | 1974-05-22 | 1975-12-04 | Tetra Pak Int | PACKAGING MATERIAL STRIP WITH VACUUM-FREE EDGE AREAS, PROCESS FOR THEIR PRODUCTION AND PACKAGING CONTAINERS MANUFACTURED FROM THIS |
US3973045A (en) * | 1973-05-14 | 1976-08-03 | The Pillsbury Company | Popcorn package for microwave popping |
DE3011630A1 (en) * | 1980-03-26 | 1981-10-01 | Maschinenfabrik Rissen Gmbh, 2000 Hamburg | Coated paper container for liq. - has cut overlap edge impregnated by non-solidifying hydrophobic liq. to prevent wetting by contents |
US5057359A (en) * | 1987-10-21 | 1991-10-15 | Polycoat A/S | Carton blank, especially for use in containers for food products |
US5551212A (en) * | 1990-09-01 | 1996-09-03 | Ostma Maschinenbau Gmbh | Method of packaging articles |
DE102011111523B3 (en) * | 2011-08-31 | 2013-01-17 | Sig Technology Ag | Method and device for edge sterilization of packaging material |
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US2019242A (en) * | 1933-04-11 | 1935-10-29 | Aument H Chester | Impervious container |
US2555315A (en) * | 1945-07-05 | 1951-06-05 | American Can Co | Method of producing containers |
US2796007A (en) * | 1952-06-05 | 1957-06-18 | Bergstein Packaging Trust | Method of making tight cartons |
US2984161A (en) * | 1953-07-07 | 1961-05-16 | United Wallpaper Inc | Manufacture of carton blanks |
US3013709A (en) * | 1960-10-26 | 1961-12-19 | Sun Oil Co | Non-flaking wax composition containing liquid polypropylene |
US3055152A (en) * | 1958-07-21 | 1962-09-25 | Beverly E Williams | Process of and apparatus for making containers |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2019242A (en) * | 1933-04-11 | 1935-10-29 | Aument H Chester | Impervious container |
US2555315A (en) * | 1945-07-05 | 1951-06-05 | American Can Co | Method of producing containers |
US2796007A (en) * | 1952-06-05 | 1957-06-18 | Bergstein Packaging Trust | Method of making tight cartons |
US2984161A (en) * | 1953-07-07 | 1961-05-16 | United Wallpaper Inc | Manufacture of carton blanks |
US3055152A (en) * | 1958-07-21 | 1962-09-25 | Beverly E Williams | Process of and apparatus for making containers |
US3013709A (en) * | 1960-10-26 | 1961-12-19 | Sun Oil Co | Non-flaking wax composition containing liquid polypropylene |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3379537A (en) * | 1964-09-14 | 1968-04-23 | Waldorf Paper Prod Co | Bulk butter package |
US3341349A (en) * | 1966-07-11 | 1967-09-12 | Int Paper Co | Folding carton blank having edges sealed with fluorochemical complexes and hydrogenated castor oils |
US3463656A (en) * | 1968-04-29 | 1969-08-26 | Int Paper Co | Folding carton blank |
US3973045A (en) * | 1973-05-14 | 1976-08-03 | The Pillsbury Company | Popcorn package for microwave popping |
DE2522546A1 (en) * | 1974-05-22 | 1975-12-04 | Tetra Pak Int | PACKAGING MATERIAL STRIP WITH VACUUM-FREE EDGE AREAS, PROCESS FOR THEIR PRODUCTION AND PACKAGING CONTAINERS MANUFACTURED FROM THIS |
DE3011630A1 (en) * | 1980-03-26 | 1981-10-01 | Maschinenfabrik Rissen Gmbh, 2000 Hamburg | Coated paper container for liq. - has cut overlap edge impregnated by non-solidifying hydrophobic liq. to prevent wetting by contents |
US5057359A (en) * | 1987-10-21 | 1991-10-15 | Polycoat A/S | Carton blank, especially for use in containers for food products |
US5551212A (en) * | 1990-09-01 | 1996-09-03 | Ostma Maschinenbau Gmbh | Method of packaging articles |
DE102011111523B3 (en) * | 2011-08-31 | 2013-01-17 | Sig Technology Ag | Method and device for edge sterilization of packaging material |
WO2013029856A1 (en) | 2011-08-31 | 2013-03-07 | Sig Technology Ag | Method and device for disinfecting the edges of packaging material |
DE102011111523B8 (en) * | 2011-08-31 | 2013-03-28 | Sig Technology Ag | Method and device for edge sterilization of packaging material |
US9315284B2 (en) | 2011-08-31 | 2016-04-19 | Sig Technology Ag | Method and device for sterilising edges of packaging material |
EP3121125A1 (en) | 2011-08-31 | 2017-01-25 | SIG Technology AG | Packaging sheath for food package production |
US9862514B2 (en) | 2011-08-31 | 2018-01-09 | Sig Technology Ag | Method and device for sterilising edges of packaging material |
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