US20070261704A1 - Cigarette package, wrapping paper for cigarette package, and method and machine for manufacturing wrapping paper - Google Patents
Cigarette package, wrapping paper for cigarette package, and method and machine for manufacturing wrapping paper Download PDFInfo
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- US20070261704A1 US20070261704A1 US11/798,443 US79844307A US2007261704A1 US 20070261704 A1 US20070261704 A1 US 20070261704A1 US 79844307 A US79844307 A US 79844307A US 2007261704 A1 US2007261704 A1 US 2007261704A1
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- paper
- moisture
- proof layer
- cigarette package
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/06—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
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- 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
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
- B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
- B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
- B65D85/1036—Containers formed by erecting a rigid or semi-rigid blank
- B65D85/1045—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge
- B65D85/1056—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the lid
- B65D85/10568—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge characterized by the lid opening of the lid opens simultaneously an inner package within the container
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H1/00—Paper; Cardboard
- D21H1/02—Multi-ply material finished plies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/716—Degradable
- B32B2307/7163—Biodegradable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/718—Weight, e.g. weight per square meter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
- B32B2307/7246—Water vapor barrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/62—Boxes, cartons, cases
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/18—Highly hydrated, swollen or fibrillatable fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/30—Multi-ply
- D21H27/32—Multi-ply with materials applied between the sheets
- D21H27/34—Continuous materials, e.g. filaments, sheets, nets
- D21H27/36—Films made from synthetic macromolecular compounds
Abstract
A cigarette package is provided with an outer box (44) and an inner pack (56) contained within the outer box (44), and the inner pack (56) includes a cigarette bundle and an inner wrapper (58) covering the cigarette bundle. The inner wrapper (58) has first and second paper layers (4, 6) forming the opposite surfaces of the inner wrapper (58), and a moisture-proof layer (8) interposed between the first and second paper layers (4, 6), the moisture-proof layer (8) is made of only paraffin wax and functions also as an adhesive agent for bonding the first and second paper layers (4, 6).
Description
- This invention relates to an environmentally-friendly cigarette package which can exclude moisture and retain an aroma satisfactorily. This invention also relates to wrapping paper with high biodegradability suitable for such cigarette package, and a method and machine for manufacturing such wrapping paper.
- The cigarette package comprises an outer box and an inner pack contained within the outer box, and the inner pack includes a bundle of smoking articles such as cigarettes or filter cigarettes and an inner wrapper, that is, wrapping paper covering the smoking-article bundle.
- For such inner wrapper, aluminum-vapor-deposited paper is generally used. The aluminum-vapor-deposited paper has a paper layer and an aluminum film vapor-deposited on one surface of the paper layer. Such aluminum film is very thin, so that the aluminum-vapor-deposited paper is insufficient in respect of the capacity to block moisture and air. Thus, regarding the moisture-excluding capacity, namely the capacity to protect the smoking-article bundle from moisture, and the aroma-retaining capacity, namely the capacity to retain the aroma of the smoking articles, the aluminum-vapor-deposited paper cannot exclude moisture and retain the aroma for a long period of time.
- Thus, normally, the cigarette package further comprises a film enveloping the outer box, and the film includes a tear tape. Such film not only protects the smoking-article bundle from moisture and retains the aroma thereof, but also is useful to prevent tampering with the smoking-article bundle.
- The above-described packaging for the smoking-article bundle has, however, a triple structure consisting of the aluminum-vapor-deposited paper, the outer box and the film, which is a factor causing an increase in the cost of the cigarette package.
- Further, unlike the aluminum-vapor-deposited paper and the outer box, the film is disposed of as nonburnable matter. Thus, the existence of the film is a factor causing an increase of environmental burdens associated with disposal.
- For these reasons, the cigarette package without the film is desired. In such cigarette package, the inner wrapper covering the smoking-article bundle needs to have in itself the moisture-excluding and aroma-retaining capacities for the smoking articles.
- Wrapping paper which satisfies such demand is disclosed in Japanese Unexamined Patent Publication No. Hei 10-183498, for example. The laminated paper disclosed in this publication has two paper layers and a moisture-proof layer interposed between these paper layers.
- The moisture-proof layer of the laminated paper disclosed in this publication, however, contains a polymer. Thus, when such laminated paper is used for the inner wrapper of the cigarette package, the odor of the polymer can spread from the laminated paper to the smoking articles and damage the flavor and taste of the smoking articles.
- Further, since the polymer which is the major constituent of the moisture-proof layer is of low biodegradability, the disposal of the laminated paper increases environmental burdens.
- An object of this invention is to provide a cigarette package which can exclude moisture and retain an aroma satisfactorily and which can decrease environmental burdens associated with disposal. Another object of this invention is to provide wrapping paper suitable for such cigarette package and a method and machine for manufacturing such wrapping paper.
- In order to achieve the above object, a cigarette package according to this invention comprises an openable and closable outer box, and an inner pack contained within the outer box, the inner pack including a bundle of rod-shaped smoking articles and an inner wrapper covering the bundle, the inner wrapper including a first paper layer forming one surface of the inner wrapper, a second paper layer forming the other surface of the inner wrapper, and a moisture-proof layer interposed between the first and second paper layers, the moisture-proof layer containing paraffin wax as a major constituent and having a thickness sufficient to function as an adhesive agent for bonding the first and second paper layers.
- Since the inner wrapper has a moisture-proof layer within itself, the inner wrapper has a capacity to protect the rod-shaped smoking articles from moisture and retain the aroma thereof, satisfactorily, for a long period of time. Further, since the major constituent of the moisture-proof layer is paraffin wax, the inner wrapper has high biodegradability. Thus, the environmental burdens which the disposal of the inner wrapper influences are decreased to a great degree. Further, since the paraffin wax is odorless, the moisture-proof layer does not have an adverse effect on the aroma of the rod-shaped smoking articles.
- Specifically, the moisture-proof layer consists only of paraffin wax and has an adhesive strength of about 15 mN/cm or greater relative to the first and second paper layers. Such moisture-proof layer has a thickness produced by applying paraffin wax in an application quantity of about 6 g/m2 or more.
- Meanwhile, the first and second paper layers are both made of glassine paper, and each of them has a basis weight of 20 to 40 g/m2, for example.
- A method of manufacturing wrapping paper for obtaining the above-described inner wrapper comprises steps of: applying a moisture-proof material containing paraffin wax as a major constituent onto a first paper web, thereby forming a moisture-proof layer with a thickness greater than or equal to a predetermined thickness, placing a second paper web on the moisture-proof layer of the first paper web, thereby forming a laminated web with the moisture-proof layer interposed between the first and second paper webs, and applying pressure to the laminated web within a predetermined pressure range, while keeping the laminated web at a temperature which is higher than a melting point of the moisture-proof material within a predetermined temperature difference range, thereby bonding the first and second paper webs by means of the moisture-proof layer functioning as an adhesive agent.
- In this case, it is desirable that the predetermined temperature difference range should be 10 to 50° C. and that the predetermined pressure range should be 0.20 to 0.40 mPa.
- Further, a machine for manufacturing the above-described wrapping paper comprises a first feed path for feeding a first paper web; an applicator provided on the first feed path, for applying a moisture-proof material containing paraffin wax as a major constituent onto the first paper web, thereby forming a moisture-proof layer with a thickness greater than or equal to a predetermined thickness; a second feed path for feeding a second paper web to the first feed path; a roller unit provided between a terminal end of the second feed path and the first feed path, for receiving the first and second paper webs from the first and second feed paths, forming a laminated web with the moisture-proof layer interposed between the first and second paper webs, and delivering the laminated web; and a bonding device for applying pressure to the laminated web within a predetermined pressure range, while keeping the laminated web at a temperature which is higher than a melting point of the moisture-proof material within a predetermined temperature difference range, thereby bonding the first and second paper webs by means of the moisture-proof layer functioning as an adhesive agent.
- The above-described method and machine manufactures the wrapping paper suitable for the inner wrapper of the cigarette package. The other objects, advantages, etc. of this invention will become clear from the description given below.
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FIG. 1 A cross-sectional view showing an embodiment of wrapping paper. -
FIG. 2 A diagram schematically showing the structure of a machine for manufacturing the wrapping paper shown inFIG. 1 . -
FIG. 3 A graph showing the relation between application quantity and peel strength when pressure applied to the laminated web is varied as a parameter. -
FIG. 4 A graph showing the relation between application quantity and peel strength when temperature difference from the melting point of paraffin wax is varied as a parameter. -
FIG. 5 A perspective view of a cigarette package in which the wrapping paper shown inFIG. 1 is used for an inner wrapper. -
FIG. 6 A perspective view showing the cigarette package ofFIG. 5 in an opened state. -
FIG. 7 A cross-sectional view showing how an inner wrapper, an inner frame and an outer box are bonded to each other when the cigarette package ofFIG. 5 is not opened yet. -
FIG. 8 A graph comparing friction coefficients for aluminum-vapor-deposited paper, an inner wrapper, and waxed paper. -
FIG. 9 A perspective view showing an inner pack contained in the cigarette package ofFIG. 5 . - As clear from
FIG. 1 , an embodiment of wrappingpaper 2 has a triple structure. Thewrapping paper 2 includes translucent first andsecond paper layers second paper layers wrapping paper 2. Desirably, the first andsecond paper layers second paper layers - The
wrapping paper 2 further includes a moisture-proof layer 8 between the first andsecond paper layers proof layer 8 to the extent that they do not have an adverse effect on the biodegradability of the moisture-proof layer 8. - In order to impart a high biodegradability to the moisture-
proof layer 8, however, it is desirable that the moisture-proof layer 8 should be made only of paraffin wax. More desirably, the paraffin wax forming the moisture-proof layer 8 contains about 10 weight % or more of isoparaffin. - The moisture-
proof layer 8 has a function as an adhesive agent for bonding the first andsecond paper layers second layer proof layer 8 has an adhesive strength of about 15 mN/cm or greater, more desirably, 20 mN/cm or greater, relative to the first andsecond paper layers - In order to have the above-mentioned adhesive strength, the moisture-
proof layer 8 is formed by applying paraffin wax onto the first orsecond paper layer second paper layers second paper layers second paper layers second paper layers second paper layers proof layer 8 between, so that thewrapping paper 2 having the above-mentioned triple structure is obtained. - Since the
wrapping paper 2 has the moisture-proof layer 8, that is, the paraffin wax layer within itself, even when air, aroma or moisture penetrates into the first orsecond paper layer wrapping paper 2 has high moisture-excluding and aroma-retaining capacities and is particularly suited to be used for wrapping articles which dislike moisture or have a characteristic aroma, etc. - Further, since the moisture-
proof layer 8 is virtually formed of paraffin wax, the moisture-proof layer 8 is odorless, and therefore, spread of odor from the moisture-proof layer 8 to the articles does not happen. - Further, if the moisture-
proof layer 8 is made only of paraffin wax, the moisture-proof layer 8 as well as the first and second paper layers 4, 6 has high biodegradability. Thus, the disposal of thewrapping paper 2 does not increase environmental burdens. - The above-described triple-
structure wrapping paper 2 is manufactured with a machine shown inFIG. 2 . This manufacturing machine and the method of manufacturing thewrapping paper 2 will be described below. - The manufacturing machine comprises a first web roll WR1, and a first paper web W1, which will form a
first paper layer 4, is unwound from the first web roll WR1. Afirst feed path 10 extends from the first web roll WR1, and a feed roller (not shown) is provided on thefirst feed path 10. As the feed roller is rotated, the first paper web W1 is fed from the first web roll WR1, along thefirst feed path 10. - The
first feed path 10 includes a plurality ofguide rollers 12, and downstream of theguide rollers 12, anapplicator 14 is disposed. Theapplicator 14 includes awax tub 16, and thewax tub 16 holds paraffin wax Q. - The
applicator 14 includes aheater 18 arranged at the bottom of thetub 16, and theheater 18 heats paraffin wax Q to temperature of 90 to 120° C. This heating temperature is higher than the general melting-point of paraffin wax which ranges from 40 to 70° C. Thus, the paraffin wax in thewax tub 16 is in a melted state and has low viscosity. - Within the
wax tub 16, anapplicator roller 20 is rotatably arranged, with the cylindrical surface thereof partly immersed in the paraffin wax Q. Within thewax tub 16, adjacent to theapplicator roller 20, also anadjuster roller 20 is rotatably arranged, with the cylindrical surface thereof partly immersed in the paraffin wax Q. Theadjuster roller 22 rotates in the opposite direction to theapplicator roller 20, and a gap between therollers applicator roller 20. Thus, the thickness of the film of paraffin wax Q on theapplicator roller 20 can be changed by adjusting the gap between therollers - Further, near the
applicator roller 20, aback roller 24 is rotatably arranged. Theback roller 24 and theapplicator roller 20 are on the opposite sides of thefirst feed path 10. When the first paper web W1 passes between theback roller 24 and theapplicator roller 20, a film of paraffin wax Q is applied onto one side of the first paper web W1 by theapplicator roller 20. The amount of paraffin wax Q applied is greater than or equal to about 6 g/m2, and the paraffin wax Q applied forms a moisture-proof layer on one side of the first paper web W1. - On the
first feed path 10, downstream of theapplicator 14, aroller unit 26 is disposed. Theroller unit 26 includes areceiver roller 28 and apress roller 30 adjacent to thereceiver roller 28. - The
press roller 30 can receive-a second paper web W2, which will form asecond paper layer 6, in addition to the first paper web W1. The second paper web W2 is fed to thepress roller 30 from a web roll WR2 along asecond feed path 32. The first and second paper webs W1, W2 are arranged in layers on the cylindrical surface of thepress roller 30, where the above-mentioned moisture-proof layer is located between the first and second paper webs W1, W2. Thus, a triple-structure laminated web LW is formed on thepress roller 30. - Then, when the laminated web LW passes between the
receiver roller 28 and thepress roller 30, pressure is applied to the laminated web LW by means of thepress roller 30. Specifically, a pressure within the range of 0.2 to 0.40 mPa, for example a pressure of 0.30 mPa is applied to the laminated LW. In this case, the heating temperature for paraffin wax Q is 10 to 50° C. higher than the melting point thereof, for example 30° C. higher than the melting point. - As clear from
FIG. 2 , in order to apply pressure to the laminated web LW, thepress roller 30 is rotatably supported by aswing arm 34 at the lower end of thearm 34, and theswing arm 34 is rotatably supported by abracket 36 fitted to a frame, at the upper end of thearm 34. Theswing arm 34 and the frame are connected by means of anair cylinder 38, and theair cylinder 38 forces theswing arm 34 toward thereceiver roller 28. Thus, thepress roller 30 is pressed against thereceiver roller 28, with the laminated web LW between, thereby applying pressure to the laminated web LW within the above-mentioned pressure range. - The
receiver roller 28 and thepress roller 30 incorporateheaters heaters rollers - Thus, even if the temperature of the applied melted paraffin wax Q drops in the period of time from a film of paraffin wax Q is applied onto one side of the first paper web W1 until that part of the first paper web W1 reaches the
roller unit 26, the laminated web LW is heated by heat from therollers receiver roller 28 and thepress roller 30, so that the paraffin wax Q is kept at a temperature sufficiently higher than its melting point and therefore the viscosity thereof is kept low. In this condition, thepress roller 30 applies pressure to the laminated web LW, so that in the laminated web LW, part of the paraffin wax Q with low viscosity spreads between the fibers of the first and second paper webs W1, W2. - Then, in the process in which the laminated web LW passes through the
roller unit 26 and is fed along thefirst feed path 10, the paraffin wax Q within the laminated web LW is cooled to below its melting point by air around and become solidified. The solidified paraffin wax Q, that is, the moisture-proof layer functions as an adhesive agent for bonding the first and second paper webs W1, W2, so that a triple-structure wrapping web PW with the moisture-proof layer between the first and second paper webs W1, W2 is obtained. Then, the wrapping web PW is cut into a desired size, so that the above-mentionedwrapping paper 2 is obtained. - As clear from the above description of the manufacturing machine, the method of manufacturing the
wrapping paper 2 comprises a step of first applying paraffin wax Q in a melted state onto one side of a first paper web W1, thereby forming a moisture-proof layer on the first paper web W1; a step of placing a second paper web W2 over the first paper web W1 with the moisture-proof layer between, thereby forming a laminated web LW; and a step of applying a predetermined pressure to the laminated web LW while keeping the paraffin wax Q at atemperature 30° C. higher than its melting point. - Different wrapping papers A, B with paraffin wax Q applied in different quantities were manufactured. Regarding the wrapping papers A, B, the adhesive strength of the moisture-
proof layer 8 and the moisture permeability of the wrapping paper were measured. The measurement results are shown in table 1 below. - Regarding isoparaffin concentration, the paraffin wax Q forming the moisture-
proof layer 8 of the wrapping paper A contains 10 weight % or less (specifically, 2.1 weight %) of isoparaffin, while the paraffin wax Q forming the moisture-proof layer 8 of the wrapping paper B contains 10 weight % or more (specifically, 13.5 weight %) of isoparaffin. - The adhesive strength of the moisture-
proof layer 8 was measured according to the test method stipulated in JIS K6854-3 (measurement temperature 25° C.), and the moisture permeability was measured according to the test method stipulated in JIS Z0208 (measurement temperature 40° C., humidity 90%).TABLE 1 Adhesive strength (mN/cm) Moisture- Moisture- proof proof Moisture permeability Application layer of layer of (g/m2/24 hr) quantity wrapping wrapping Wrapping Wrapping (g/m2) paper A paper B paper A paper B 3.2 6.9 — 137.8 — 3.3 — 7.6 — 156.2 4.5 7.5 — 105.6 — 4.7 — 7.8 — 99.8 5.4 7.9 — — — 5.6 — 9.8 — 50.6 6.1 15.1 — 35.4 — 6.2 — 19.5 — 42.1 6.4 17.0 — 34.6 — 6.8 — — — — 7.2 28.5 — 32.2 — 7.3 — 35.5 — 41.7 - As clear from table 1, when the moisture-
proof layer 8 in the wrapping papers A, B is formed from paraffin wax Q in the application quantity of about 6 g/m2 or more, the moisture-proof layer 8 has a thickness sufficient to function as an adhesive layer, or in other words, to have an adhesive strength of about 15 mN/cm or greater, and the wrapping papers A, B have a moisture permeability of about 45 g/m2/24 hr or less. - Further, wrapping papers C to F were manufactured by using paraffin waxes Q which were different in isoparaffin concentration (weight %). Also regarding the wrapping papers C to F, the adhesive strength of the moisture-
proof layer 8 was measured according to the same test method (JIS K6854-3). The measurement results are shown in table 2 below.TABLE 2 Wrap- Wrapping Wrapping Wrapping ping paper C paper D paper E paper F Melting point ° C. 58.2 60.5 68.2 70.0 Concentration 2 2.1 6.0 13.2 (weight %) Application 6.4 6.2 6.4 6.5 quantity (g/m2) Adhesive 20° C. 13.8 14.1 15.2 29.8 power at 30° C. 16.8 17.7 20.4 36.2 each 40° C. 18.5 21.4 22.2 44.9 measurement 50° C. 9.8 14.6 21.5 28.3 temperature 55° C. Unmeasurable 10.4 18.3 20.8 (mN/cm) - As clear from table 2, in any of the wrapping papers C to F, the moisture-
proof layer 8 is formed from paraffin wax Q in the application quantity of 6 g/m2 or more, and therefore has sufficient adhesive strength. Further, table 2 shows that when the concentration of isoparaffin in paraffin wax Q is 10 weight % or higher, the moisture-proof layer 8 has much increased adhesive strength. -
FIG. 3 shows the relation between the paraffin wax Q application quantity and the peel strength of the first and second paper layers 4, 6 when the pressure P applied to the laminated web LW is varied as a parameter. Meanwhile,FIG. 4 shows the relation between the paraffin wax Q application quantity and the peel strength of the first and second paper layers 4, 6 when the temperature difference Δ(y) between the melting point of paraffin wax and the heating temperature for the laminated web LW is varied a parameter. InFIG. 3 , x in P(x) is a value in mPa, and inFIG. 4 , y in ΔT(y) is a value in ° C. - As clear from
FIG. 3 , as the pressure P applied to the laminated web LW increases, the peel strength increases. The peel strength is, however, lower when the pressure P is 0.40 mPa than when the pressure P is 0.35 mPa. The reason for this is thought to be that too high pressure P applied to the laminated web LW produces wrinkles in the first and second paper layers 4, 6, such wrinkles decreasing the peel strength. Thus, in order for the moisture-proof layer 8 to produce desired peel strength, or in other words, to have the adhesive strength as mentioned above, it is desirable to restrict the pressure P applied to the laminated web LW to the range of 0.20 to 0.40 mPa. - Meanwhile, regarding the temperature difference ΔT, as clear from
FIG. 4 , as the temperature difference ΔT increases, the peel strength increases. Too great temperature difference ΔT can, however, lead to alteration of paraffin wax Q by oxidation, and therefore, production of an off-flavor. Such off-flavor spreads to the first and second paper layers 4, 6. Thus, considering the peel strength of the first and second paper layers 4, 6, that is, the adhesive strength of the moisture-proof layer 8, it is desirable to restrict the temperature difference ΔT to the range of 10 to 50° C. -
FIGS. 5 and 6 show a cigarette package using the above-described embodiment of wrappingpaper 2. - The cigarette package comprises an
outer box 44, and theouter box 44 includes abox body 46 and ahinge lid 50 connected to thebody box 46 with aseparation line 48 between. After separated from thebox body 46 along theseparation line 48, thehinge lid 30 can be rotated about ahinge 52. Thus, theouter box 44 is opened as shown inFIG. 6 . Once theouter box 46 is opened this way, the separation along theseparation line 48 leaves break marks Z at theseparation edge 46 a of thebox body 46 as well as at the separation edge of thehinge lid 50, that is, an opening-definingedge 50 a. It is to be noted that theouter box 44 is formed by folding a blank. - Within the
outer box 44, aninner pack 54 is contained with aninner frame 56. Theinner pack 54 includes a cigarette bundle having 20 filter cigarettes FC and aninner wrapper 58 covering the cigarette bundle. Theinner wrapper 58 is made of the above-described wrapping paper. - The
inner frame 56 has a U-shaped cross section, and partly covers the front surface and side surfaces of theinner pack 54. As clear fromFIG. 6 , when thehinge lid 50 is opened, the part of theinner frame 56 not covered by thebox body 46 becomes exposed, where the edge of theinner frame 56 defines the opening of thebox body 46. Meanwhile, when thehinge lid 50 is closed, thehinge lid 50 covers the part of theinner frame 56 not covered by thebox body 46, where the opening-definingedge 50 a meets theseparation edge 46 a of thebox body 46. - The
inner frame 56 includes afront wall part 56 a not covered by the front wall of thebox body 46, and thefront wall part 56 a has aU-shaped separation line 60. Also theinner wrapper 58 of theinner pack 54 has a U-shape separation line 62 (seeFIG. 9 ) corresponding to theseparation line 60. - When the
outer box 44 is first opened by turning thehinge lid 50 in the opening direction, theinner frame 56 and theinner wrapper 58 are separated along theseparation lines inner frame 56 and a part of theinner wrapper 58 are separated off the other parts of theinner frame 56 and of theinner wrapper 58, asseparation pieces - Consequently, as shown in
FIG. 6 , aU-shaped aperture 68 is formed in theinner frame 56, so that the cigarette bundle of theinner pack 54 becomes partly exposed, within theaperture 68. Theseparation pieces inner frame 56 andinner wrapper 58 are kept stuck to the inner surface of thehinge lid 50. - As shown in
FIG. 7 , in order that theseparation pieces separation lines inner frame 56 surrounded by theseparation line 60 is bonded to the inner surface of the front wall of thehinge lid 50 by a glue appliedregion 70, and the part of theinner wrapper 58 surrounded by theseparation line 62 is bonded to the inner surface of theinner frame 56 by a glue appliedregion 72. The above-mentioned part of theinner wrapper 58 is bonded also to the ceiling surface of thehinge lid 50 with a glue appliedregion 74. - When the above-described
wrapping paper 2 is used for theinner wrapper 58, the moisture-proof layer 8 present within theinner wrapper 58 satisfactorily protects the cigarette bundle, i.e., the individual cigarettes FC from moisture present outside theouter box 44 and satisfactorily prevents the aroma of the filter cigarettes FC from escaping to outside theouter box 44, until theouter box 44 is opened. Thus, theinner wrapper 58 stably maintains the quality of the cigarette bundle for a long period of time. - Once the
outer box 44 is opened, break marks Z are left at theseparation edge 46 a of thebox body 46 and the opening-definingedge 50 a of thehinge lid 50. The production of the break marks Z is useful to prevent tampering with the cigarette bundle. Thus, the cigarette package only requires theouter box 44 that covers theinner pack 56, not requires a film that covers theouter box 44. Accordingly, not only excess packaging of the cigarette bundle can be avoided, but also the need to dispose of the film is obviated. Thus, the cigarette package according to the present invention contributes much to a decrease of environmental burdens. - The moisture-
proof layer 8 of theinner wrapper 58 does not come into direct contact with the filter cigarettes FC, and in addition, the moisture-proof layer 8 is odorless. Thus, the moisture-proof layer 8 does not have an adverse effect on the aroma of the filter cigarettes FC. - Further, the first and second paper layers 4, 6 of the
inner wrapper 58 are made of glassine paper. Thus, as shown inFIG. 8 , the static and kinetic friction coefficients for the first and second paper layers 4, 6 are smaller, as compared with a paper layer made of aluminum-vapor-deposited paper generally used as the inner wrapper, and a paper layer made of waxed paper used as wrapping paper for a carton. - Further, since the glassine paper is very thin, the resilience of the
inner wrapper 58 resisting folding is small although theinner wrapper 58 has the above-described triple-layer structure. Accordingly, theinner wrapper 58 can be easily folded around the cigarette bundle, and after folding, theinner wrapper 58 does not unfold back. Thus, theinner wrapper 58 can be stably folded around the cigarette bundle, and therefore, thewrapping paper 2 is particularly suitable for the inner wrapper of theinner pack 56. - As mentioned above, the first and second paper layers 4, 6 of the
inner wrapper 58 are both translucent, but exceptionally, they are allowed to be not translucent. However, if one of the first and second paper layers 4, 6 is translucent, one surface of the translucent paper layer can be used as a printing surface to print desired character information, designs, etc., on. - Specifically, if the
first paper layer 4 of theinner wrapper 58 is in direct contact with the cigarette bundle and thesecond paper layer 6 in contact with the moisture-proof layer 8 is translucent, the surface of thesecond paper layer 6 in contact with the moisture-proof layer 8 can be used as a printing surface. In this case, information, etc. can be printed on the printing surface, in desired positions such as on the front face and side faces of theinner pack 56, as indicated by hatching inFIG. 9 . - Even when information, etc. is printed on the
second paper layer 6, ink or its odor does not pass through the moisture-proof layer 8. Thus, the ink does not stain the filter cigarettes FC, and the odor of the ink does not transferred to the filter cigarettes FC. - In order to print information, etc. on the
inner wrapper 58 on theinner wrapper 58 production line, aprinting unit 76 can be disposed on thesecond feed path 32 for the second paper web W2, as shown inFIG. 2 . Alternatively, information, etc. may be printed on the second paper web W2 in advance. - The wrapping paper according to the present invention is suited not only for the
inner wrapper 58 of theinner pack 56 but also for wrapping various articles that dislike moisture.
Claims (20)
1. A cigarette package, comprising:
an openable and closable outer box, and
an inner pack contained within said outer box, said inner pack including a bundle of rod-shaped smoking articles and an inner wrapper covering the bundle,
the inner wrapper having
a first paper layer forming one surface of the inner wrapper,
a second paper layer forming the other surface of the inner wrapper, and
a moisture-proof layer interposed between the first and second paper layers, the moisture-proof layer containing paraffin wax as a major constituent and having a thickness sufficient to function as an adhesive agent for bonding the first and second paper layers.
2. The cigarette package according to claim 1 , wherein
the moisture-proof layer consists only of paraffin wax.
3. The cigarette package according to claim 2 , wherein
the moisture-proof layer has an adhesive strength of about 15 mN/cm or greater relative to the first and second paper layers.
4. The cigarette package according to claim 3 , wherein
the moisture-proof layer has a thickness produced by applying paraffin wax in an application quantity of about 6 g/m2 or more.
5. The cigarette package according to claim 1 , wherein
the first and second paper layers are both made of glassine paper.
6. The cigarette package according to claim 5 , wherein
the first and second paper layers each have a basis weight of 20 to 40 g/m2.
7. The cigarette package according to claim 5 , wherein
at least one of the first and second paper layers are made of translucent glassine paper.
8. The cigarette package according to claim 7 , wherein
the paper layer made of translucent glassine paper has information printed on the surface facing the moisture-proof layer.
9. The cigarette package according to claim 1 , wherein
said outer box includes a separation line for separating said outer box into a box body and a hinge lid.
10. Wrapping paper for a cigarette package, where the cigarette package comprises an openable and closable outer box and an inner pack contained within the outer box, the inner pack including a bundle of rod-shaped smoking articles and an inner wrapper formed from the wrapping paper and covering the bundle,
the wrapping paper comprising
a first paper layer forming one surface of the wrapping paper,
a second paper layer forming the other surface of the wrapping paper, and
a moisture-proof layer interposed between said first and second paper layers, said moisture-proof layer containing paraffin wax as a major constituent and having a thickness sufficient to function as an adhesive agent for bonding said first and second paper layers.
11. The wrapping paper according to claim 10 , wherein
said first and second paper layers are both made of glassine paper.
12. The wrapping paper according to claim 10 , wherein
said moisture-proof layer consists only of paraffin wax.
13. A method of manufacturing wrapping paper for a cigarette package, where the cigarette package comprises an openable and closable outer box and an inner pack contained within the outer box, the inner pack including a bundle of rod-shaped smoking articles and an inner wrapper formed from the wrapping paper and covering the bundle,
the method comprising the steps of:
applying a moisture-proof material containing paraffin wax as a major constituent onto a first paper web, thereby forming a moisture-proof layer with a thickness greater than or equal to a predetermined thickness,
placing a second paper web on said moisture-proof layer of said first paper web, thereby forming a laminated web with said moisture-proof layer interposed between said first and second paper webs, and
applying pressure to said laminated web within a predetermined pressure range, while keeping said laminated web at a temperature which is higher than a melting point of the moisture-proof material within a predetermined temperature difference range, thereby bonding said first and second paper webs by means of said moisture-proof layer functioning as an adhesive agent.
14. The method according to claim 13 , wherein
said predetermined temperature difference range is 10 to 50° C. and said predetermined pressure range is 0.20 to 0.40 mPa.
15. The method according to claim 14 , wherein
said first and second paper webs are both made of glassine paper.
16. A machine for manufacturing wrapping paper for a cigarette package, where the cigarette package comprises an openable and closable outer box and an inner pack contained within the outer box, the inner pack including a bundle of rod-shaped smoking articles and an inner wrapper formed from the wrapping paper and covering the bundle,
the machine comprising
a first feed path for feeding a first paper web,
an applicator provided on said first feed path, for applying a moisture-proof material containing paraffin wax as a major constituent onto the first paper web, thereby forming a moisture-proof layer with a thickness greater than or equal to a predetermined thickness,
a second feed path for feeding a second paper web to said first feed path,
a roller unit provided between a terminal end of said second feed path and said first feed path, for receiving the first and second paper webs from said first and second feed paths, forming a laminated web with the moisture-proof layer interposed between the first and second paper webs, and delivering the laminated web, and
a bonding device for applying pressure to the laminated web within a predetermined pressure range, while keeping the laminated web at a temperature which is higher than a melting point of the moisture-proof material within a predetermined temperature difference range, thereby bonding the first and second paper webs by means of the moisture-proof layer functioning as an adhesive agent.
17. The machine according to claim 16 , wherein
said applicator includes a wax tub for holding the moisture-proof material, and
said bonding device includes a first heater for heating the moisture-proof material held in the wax tub.
18. The machine according to claim 17 , wherein
said roller unit includes
a rotatable receiver roller disposed on said first feed path, and
a rotatable press roller disposed at the terminal end of said second feed path, for forming the laminated web in cooperation with the receiver roller, and
said bonding device further includes
a second heater incorporated in the receiver roller for heating the receiver roller,
a rotatable arm supporting the press roller rotatably, and
an air cylinder for rotating the arm toward the receiver roller, thereby applying pressure to the laminated web.
19. The machine according to claim 17 , wherein
said applicator further includes
rollers in a pair, each rotatably arranged within the wax tub with the cylindrical surface partly immersed in the moisture-proof material, in the manner that a gap between the rollers is adjustable, and
a rotatable back roller arranged opposite to one of the rollers in a pair, with said first feed path between.
20. The machine according to claim 16 , wherein
the first and second paper webs are both made of glassine paper.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-333293 | 2004-11-17 | ||
JP2004333293A JP4439378B2 (en) | 2004-11-17 | 2004-11-17 | Wrapping paper, cigarette package using wrapping paper, and method and apparatus for manufacturing wrapping paper |
PCT/JP2005/020630 WO2006054481A1 (en) | 2004-11-17 | 2005-11-10 | Cigarette package, wrapping paper for cigarette package, and method and machine for manufacturing wrapping paper |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/020630 Continuation WO2006054481A1 (en) | 2004-11-17 | 2005-11-10 | Cigarette package, wrapping paper for cigarette package, and method and machine for manufacturing wrapping paper |
Publications (1)
Publication Number | Publication Date |
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US20070261704A1 true US20070261704A1 (en) | 2007-11-15 |
Family
ID=36407025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/798,443 Abandoned US20070261704A1 (en) | 2004-11-17 | 2007-05-14 | Cigarette package, wrapping paper for cigarette package, and method and machine for manufacturing wrapping paper |
Country Status (11)
Country | Link |
---|---|
US (1) | US20070261704A1 (en) |
EP (1) | EP1813553A4 (en) |
JP (1) | JP4439378B2 (en) |
KR (1) | KR100882037B1 (en) |
CN (1) | CN101102943B (en) |
CA (1) | CA2586653C (en) |
HK (1) | HK1107968A1 (en) |
RU (1) | RU2349521C1 (en) |
TW (1) | TWI296664B (en) |
UA (1) | UA83601C2 (en) |
WO (1) | WO2006054481A1 (en) |
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DE102014005191A1 (en) * | 2014-03-07 | 2015-09-10 | Focke & Co. (Gmbh & Co. Kg) | cigarette pack |
WO2016094060A1 (en) * | 2014-12-09 | 2016-06-16 | Maui Kahawaiolaa | Improved cigarette packaging, and method for sealing a cigarette package |
US20180016070A1 (en) * | 2016-07-12 | 2018-01-18 | R.J. Reynolds Tobacco Products | Package wrapping including pla film with moisture barrier by atomic layer deposition |
WO2020094720A1 (en) * | 2018-11-07 | 2020-05-14 | Focke & Co. (Gmbh & Co. Kg) | Pack for products in the cigarette industry, and method and apparatus for producing the same |
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GB201706847D0 (en) * | 2017-04-28 | 2017-06-14 | British American Tobacco Investments Ltd | A Pack |
CN111723489A (en) * | 2020-06-22 | 2020-09-29 | 云南中烟工业有限责任公司 | Cigarette tipping paper lip adhesion prediction model and construction method and prediction method thereof |
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CN104452478A (en) * | 2014-10-15 | 2015-03-25 | 云南中烟新材料科技有限公司 | Perfumed aluminum-free composite inner liner paper for multi-coating cigarettes as well as preparation method and device of perfumed aluminum-free composite inner liner paper |
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Also Published As
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CN101102943B (en) | 2011-11-30 |
EP1813553A4 (en) | 2010-03-17 |
RU2349521C1 (en) | 2009-03-20 |
KR20070063586A (en) | 2007-06-19 |
JP4439378B2 (en) | 2010-03-24 |
RU2007122476A (en) | 2008-12-27 |
UA83601C2 (en) | 2008-07-25 |
CN101102943A (en) | 2008-01-09 |
HK1107968A1 (en) | 2008-04-25 |
TW200632186A (en) | 2006-09-16 |
TWI296664B (en) | 2008-05-11 |
WO2006054481A1 (en) | 2006-05-26 |
EP1813553A1 (en) | 2007-08-01 |
CA2586653A1 (en) | 2006-05-26 |
JP2006142566A (en) | 2006-06-08 |
KR100882037B1 (en) | 2009-02-09 |
CA2586653C (en) | 2010-03-30 |
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