CA2043909A1 - Method of producing a non-burning outer wrapper for use with smoking products - Google Patents
Method of producing a non-burning outer wrapper for use with smoking productsInfo
- Publication number
- CA2043909A1 CA2043909A1 CA002043909A CA2043909A CA2043909A1 CA 2043909 A1 CA2043909 A1 CA 2043909A1 CA 002043909 A CA002043909 A CA 002043909A CA 2043909 A CA2043909 A CA 2043909A CA 2043909 A1 CA2043909 A1 CA 2043909A1
- Authority
- CA
- Canada
- Prior art keywords
- weight
- wrapper
- amount
- paper
- burning
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
-
- 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
- D21H3/00—Paper or cardboard prepared by adding substances to the pulp or to the formed web on the paper-making machine and by applying substances to finished paper or cardboard (on the paper-making machine), also when the intention is to impregnate at least a part of the paper body
Abstract
METHOD OF PRODUCING A NON-BURNING OUTER
WRAPPER FOR USE WITH SMOKING PRODUCTS
(Abstract of the Disclosure) There is disclosed a method of producing a non-burning wrapper for use with smoking products. A non-burning wrapper is formed by treating a base paper with a solution consisting essentially of water, calcium chloride and a reactive size for paper, drying the thus heated paper, coating one side of the thus treated base paper with a solution consisting essentially of water, calcium carbonate, potassium silicate and sodium carboxymethycellulose; and drying the thus treated and coated paper to form a non-burning wrapper for use with smoking products.
(KC # 9528)
WRAPPER FOR USE WITH SMOKING PRODUCTS
(Abstract of the Disclosure) There is disclosed a method of producing a non-burning wrapper for use with smoking products. A non-burning wrapper is formed by treating a base paper with a solution consisting essentially of water, calcium chloride and a reactive size for paper, drying the thus heated paper, coating one side of the thus treated base paper with a solution consisting essentially of water, calcium carbonate, potassium silicate and sodium carboxymethycellulose; and drying the thus treated and coated paper to form a non-burning wrapper for use with smoking products.
(KC # 9528)
Description
~3~3~
METHOD OF PRODUCING A NON-BURNI~G OUTER
WRAPPE~ FOR USE WITH Sl\IOKING PRODUCTS
E~[~
The invention relates to a method for producing a non-burning wrapper for use with smoking products. More specifically, this invention relates to a method for producing a non-burning cigarette wrapper using a treating solution contai~ning calcium chloride, a reactive size for paper, and acoating solution containing calcium carbonate, potassium silicate and sodium carboxymethylcellulose.
One of the more recent developnents in the field of cigarette technology involves cigarettes which contain a non-tobacco fuel source which typically heats tobacco contained within a cigarette.
One problem encountered in producing such cigarettes is the availability of a suitable wrapper. The burning of tobacco in conventional cigarrettes masks the odor of the burning wrapper used in conventional cigarettes Because non-tobacco fueled cigarettes have little or no odor attributable to the combustion of the fuel element or tobacco, any odor resulting fro n the burning of the wrapper is highly noticeable. A suitable ~rrapper must, tnerefore, ernit little if any aroma or smoke upon ignition of the cigarette, have the appearance of a conventional cigarelte and provide adequate suppor~, once tne cigarette is lit tc, contain the fuel source within tne cigarette.
It is known in the art to add burn control agentr. to paper used with smoking products to control burn rate, ash formation and side stream smoke emission. These agents may act to either retard or accelerate the burn rate of the paper. However, even though burn rate is controlled, paper ~reated with such burn control agents generally burns unless large amounts S of burn control agents are added. This burning produces an unpleasant odor and transfo~ns the cellulose into a non-cellulose ash. Alternatively, paper trested with large amounts of burn control agents is trans~ormed by the heat into a cellulose char, and the emission of appreciable odor and smoke is elirninated. However, the char produced is typically a black or an aesthetically unacceptable dark color.
United States Patent No. 4,453,553, teaches a wrapper treated with a burn retarding compound which produces a light grey or white ash.
This wrapper is not acceptable because it burns emitting an odor and folming an ash which does not possess sufficient strength to contain the lS fuel source within the cigarette.
Another example is disclosed in United States Patent No.
4,779,631. This wrapper, has the disadvantage of providing a non-uniform }ength of ash, the length of which varies with the puffing strength of the smoker, produces an aroma which is irritating and detrimental to roorn aroma, and does not provide unifolm delivery to the smoker.
Thus, a need exists in the art for a wrapper for use with smoking products which does not produce a noticeable aroma, does not burn out to form an ash incapable of con~aining the fuel source, and does not produce a variable length char or char having an aesthetically unacceptable color, and which provides uniform delivery to the smolcer.
The present invention solves the above-describecl need by providing a method of producing a non-burning cigarette wrapper which does not impart a significant aroma, forms a white or gray char capable of containing the fuel source, provides unifolm delivery to the smoker and is less sensitive to differences in heat generated by the fuel source.
Generally described, the method of this invention comprises the steps of forming a treating solution consisting essenhally of water, calcium chloride and a reactive size for paper; treating both sides of a base paper 3 ~ ~
with the treating solution; drying the thus treated paper, forming a coating solution consisting essentially of water, calcium carbonate, potassium silicate, and sodium carboxymethylcellulose; coating one side of the ~hus treated paper with the coating solution; and drying the thus treated and coa~ed paper to form a non-burning wrapper for use with smoking products.
The preferred method of this invention comprises the steps of forming an aqueous treating solution having between 9% and 18% by weight calcium chloride solids and between 0.2% and 2.0% by weight reactive size; treating both sides of a base paper having an untreated permeability of between 200 and 6500 cm/min (determined in accordance with the CORESTA perrneability determina~ion method) with the treating solution such that the base paper contains calcium chloride in an amount between 6% and 14% by weight of the treated paper and reactive size for paper in an amount between 0.1% and 1.5% by weight of the treated paper, forrning an aqueous coating solution having between 2% and ~% by weight calcium carbonate solids, between 1% and 5% by weight potassium silicate solids, and between û.3% and 2.5% by weight sodium carboxymethyl cellulose solids; coating one side of the ~hus treated paper with the coating solution such that the paper contains calcium carbonate in an amount between 3% and 10% by weight of the finished wrapper, potassium silicate in an amount between 2% and 6% by weight of the finished wrapper and sodiurn carboxymethylcellulose in an amount between 0.3~o and 1.5% by weight of the finished wrapper and drying the thus treated and coated paper to form a finished non-burning wrapper for use with smoking products.
Accordingly, an object of the invention is to provide a method for producing a non-burning wrapper for use with smoking products.
A further object is to provide a non-burning wrapper ~or use with cigarettes which contain a non-tobacco fuel source.
Yet another object of the invention is to provide a non-buming wrapper for cigarettes which does not impart a significant aroma, forms a white or grey char capable of containing the fuel source, provides uniform delivery to the smoker, and is not sensitive to differences in heat generated by the fuel source.
~ '3'~
... C .~
In a preferred embodiment, the method of this inventiQn comprises the following steps. First, an aqueous treating solution is folmed having between 9% and 18% by weight calcium chloride solids and S betwecn û.2% and 2.0% by wei~ht reac~ive size, preferably ~'Hercon 70"
available from Hercules, Inc. of Wilmington, Delaware; next, using conventional saturation methods, such as a size press, the treating solution is applied to both sides of a base paper, the base paper preferably being 100% cellulose paper and having a permeabili~y between 2ûO and 6500 cmJmin as determined in accordance with the CORESTA permeability determination method. The thus treated paper is then dried using a standard drying method. Using this solution and a standa~d saturation meth~, a treated paper containing calcium chloride in an amount between 6% and 14% by weight of the ~eated paper and reactive size in an amoun~ between 0.1% and 1.5% by weight of the treated paper is formed. These percentages may bç deterrnined by wet pick-up or by any standard method for detecting chloride or calcium ions. It is necessary that a homogeneous treating solution is formed, since application of the calcium chloride to the base paper prior to application of the reactive size adversely affects the subsequent step by allowing the reactive size to fo~l a barrier between the calcium chloride and the po~assium silicate added in the next step.
Continuing with the process, an aqueous coating solution is folmed having between 2% and 8% by weight calcium carbonate, preferably "Albacar 5970," available from P~lzer & Co., Inc. of New York, New York; between 1% and 5% by weight potassium silicate solids, preferably "Kasil #l" available from Philadelphia Quartz Co. of Philadelphia, Pennsylvania; and between 0.3% and 2.5% by weight sodiurn carboxymethylcellulose solids, an example being "7H3S~' available from Aqualon, a division of E~ercules, Inc. Using a standard coater with a Mayer rod set up, the coating solution is applied to one side of the above treated base paper. Using this solution and application method, a finished wrapper containing calcium carbonate in an amount betwe n 3% and 10%
by weight of the fimished wrapper, potassium silicate in an amount between 2% and 6% by weight of ~he finished wrapper, and sodium carboxyrnethylcellulose in an amount between 0.3% and 1.5% by weigh~ of 3~
the fimished wrapper is obtained.
In preparing the coating solution, the following procedure is believed to produce the best results:
~1) Thoroughly mix the water and the calcium carbonate such that the calcium carbonate is fully dispersed before adding the potassium silicate;
~2) Add the potassi~n silicate and mix thoroughly;
(3) Add the sodium carboxymethylcellulose and mix thoroughly. If sodium caTboxymethylcellulcse is added directly to the calcium carbonate, dispersion will be inhibited.
The final step in making a non-burning paper for use with cigaret~es is to dry the thus treated and coated ~eated paper.
Additionally, while the preferred embodiment discloses the use of calcium carbonate, other fillers such as titanium dioxide and magnesium dioxide may be utilized.
The method of this inven~ion provides a novel cigarette wrapper which does not burn so as to forrn an ash, but chars, such that it still contains cellulose, to an aesthetically pleasing gray color resembling conventional cigarette ash. The cigarette wrapper does not emit noxious or unpleasant odors when lit and provides a char strong enough to hold the fuel source of the cigarette in place.
Another feature of the present invention is the vari~ble perrneability of the wrapper. To provide a cigarette which is easily lit, it is important to provide a low perrneability wrapper so that during lighting 2S most of the air is pulled through the end of the cigarette at the fuel source.
Once the cigarette is lit, however, it is preferable to have paper of higher permeability so that rnore air is drawn through the wrapper to provide adequate air delivery with each puff. The wrapper of the present invention provides this versatility by having a coa~ing which reduces tne permeability of the paper from between 30% to 80% for lighting the cigarette. Once the char is fo~ned ~he coating degrades to provide a char area having approxirnately the same penneability as the original uncoated wrapper.
An example of the effect of the coating on permeability is se~
forth below:
Base Sheet PermeabilityCoated Sheet Permeability 6~00 1670 ~5~0 1 120 2700 3~4 The foregoing description relates to celtain embodiments of the present inv~ntion, and modifications or alterations may be made without departing from the spirit and scope of the inventoF as defined in the following claims.
METHOD OF PRODUCING A NON-BURNI~G OUTER
WRAPPE~ FOR USE WITH Sl\IOKING PRODUCTS
E~[~
The invention relates to a method for producing a non-burning wrapper for use with smoking products. More specifically, this invention relates to a method for producing a non-burning cigarette wrapper using a treating solution contai~ning calcium chloride, a reactive size for paper, and acoating solution containing calcium carbonate, potassium silicate and sodium carboxymethylcellulose.
One of the more recent developnents in the field of cigarette technology involves cigarettes which contain a non-tobacco fuel source which typically heats tobacco contained within a cigarette.
One problem encountered in producing such cigarettes is the availability of a suitable wrapper. The burning of tobacco in conventional cigarrettes masks the odor of the burning wrapper used in conventional cigarettes Because non-tobacco fueled cigarettes have little or no odor attributable to the combustion of the fuel element or tobacco, any odor resulting fro n the burning of the wrapper is highly noticeable. A suitable ~rrapper must, tnerefore, ernit little if any aroma or smoke upon ignition of the cigarette, have the appearance of a conventional cigarelte and provide adequate suppor~, once tne cigarette is lit tc, contain the fuel source within tne cigarette.
It is known in the art to add burn control agentr. to paper used with smoking products to control burn rate, ash formation and side stream smoke emission. These agents may act to either retard or accelerate the burn rate of the paper. However, even though burn rate is controlled, paper ~reated with such burn control agents generally burns unless large amounts S of burn control agents are added. This burning produces an unpleasant odor and transfo~ns the cellulose into a non-cellulose ash. Alternatively, paper trested with large amounts of burn control agents is trans~ormed by the heat into a cellulose char, and the emission of appreciable odor and smoke is elirninated. However, the char produced is typically a black or an aesthetically unacceptable dark color.
United States Patent No. 4,453,553, teaches a wrapper treated with a burn retarding compound which produces a light grey or white ash.
This wrapper is not acceptable because it burns emitting an odor and folming an ash which does not possess sufficient strength to contain the lS fuel source within the cigarette.
Another example is disclosed in United States Patent No.
4,779,631. This wrapper, has the disadvantage of providing a non-uniform }ength of ash, the length of which varies with the puffing strength of the smoker, produces an aroma which is irritating and detrimental to roorn aroma, and does not provide unifolm delivery to the smoker.
Thus, a need exists in the art for a wrapper for use with smoking products which does not produce a noticeable aroma, does not burn out to form an ash incapable of con~aining the fuel source, and does not produce a variable length char or char having an aesthetically unacceptable color, and which provides uniform delivery to the smolcer.
The present invention solves the above-describecl need by providing a method of producing a non-burning cigarette wrapper which does not impart a significant aroma, forms a white or gray char capable of containing the fuel source, provides unifolm delivery to the smoker and is less sensitive to differences in heat generated by the fuel source.
Generally described, the method of this invention comprises the steps of forming a treating solution consisting essenhally of water, calcium chloride and a reactive size for paper; treating both sides of a base paper 3 ~ ~
with the treating solution; drying the thus treated paper, forming a coating solution consisting essentially of water, calcium carbonate, potassium silicate, and sodium carboxymethylcellulose; coating one side of the ~hus treated paper with the coating solution; and drying the thus treated and coa~ed paper to form a non-burning wrapper for use with smoking products.
The preferred method of this invention comprises the steps of forming an aqueous treating solution having between 9% and 18% by weight calcium chloride solids and between 0.2% and 2.0% by weight reactive size; treating both sides of a base paper having an untreated permeability of between 200 and 6500 cm/min (determined in accordance with the CORESTA perrneability determina~ion method) with the treating solution such that the base paper contains calcium chloride in an amount between 6% and 14% by weight of the treated paper and reactive size for paper in an amount between 0.1% and 1.5% by weight of the treated paper, forrning an aqueous coating solution having between 2% and ~% by weight calcium carbonate solids, between 1% and 5% by weight potassium silicate solids, and between û.3% and 2.5% by weight sodium carboxymethyl cellulose solids; coating one side of the ~hus treated paper with the coating solution such that the paper contains calcium carbonate in an amount between 3% and 10% by weight of the finished wrapper, potassium silicate in an amount between 2% and 6% by weight of the finished wrapper and sodiurn carboxymethylcellulose in an amount between 0.3~o and 1.5% by weight of the finished wrapper and drying the thus treated and coated paper to form a finished non-burning wrapper for use with smoking products.
Accordingly, an object of the invention is to provide a method for producing a non-burning wrapper for use with smoking products.
A further object is to provide a non-burning wrapper ~or use with cigarettes which contain a non-tobacco fuel source.
Yet another object of the invention is to provide a non-buming wrapper for cigarettes which does not impart a significant aroma, forms a white or grey char capable of containing the fuel source, provides uniform delivery to the smoker, and is not sensitive to differences in heat generated by the fuel source.
~ '3'~
... C .~
In a preferred embodiment, the method of this inventiQn comprises the following steps. First, an aqueous treating solution is folmed having between 9% and 18% by weight calcium chloride solids and S betwecn û.2% and 2.0% by wei~ht reac~ive size, preferably ~'Hercon 70"
available from Hercules, Inc. of Wilmington, Delaware; next, using conventional saturation methods, such as a size press, the treating solution is applied to both sides of a base paper, the base paper preferably being 100% cellulose paper and having a permeabili~y between 2ûO and 6500 cmJmin as determined in accordance with the CORESTA permeability determination method. The thus treated paper is then dried using a standard drying method. Using this solution and a standa~d saturation meth~, a treated paper containing calcium chloride in an amount between 6% and 14% by weight of the ~eated paper and reactive size in an amoun~ between 0.1% and 1.5% by weight of the treated paper is formed. These percentages may bç deterrnined by wet pick-up or by any standard method for detecting chloride or calcium ions. It is necessary that a homogeneous treating solution is formed, since application of the calcium chloride to the base paper prior to application of the reactive size adversely affects the subsequent step by allowing the reactive size to fo~l a barrier between the calcium chloride and the po~assium silicate added in the next step.
Continuing with the process, an aqueous coating solution is folmed having between 2% and 8% by weight calcium carbonate, preferably "Albacar 5970," available from P~lzer & Co., Inc. of New York, New York; between 1% and 5% by weight potassium silicate solids, preferably "Kasil #l" available from Philadelphia Quartz Co. of Philadelphia, Pennsylvania; and between 0.3% and 2.5% by weight sodiurn carboxymethylcellulose solids, an example being "7H3S~' available from Aqualon, a division of E~ercules, Inc. Using a standard coater with a Mayer rod set up, the coating solution is applied to one side of the above treated base paper. Using this solution and application method, a finished wrapper containing calcium carbonate in an amount betwe n 3% and 10%
by weight of the fimished wrapper, potassium silicate in an amount between 2% and 6% by weight of ~he finished wrapper, and sodium carboxyrnethylcellulose in an amount between 0.3% and 1.5% by weigh~ of 3~
the fimished wrapper is obtained.
In preparing the coating solution, the following procedure is believed to produce the best results:
~1) Thoroughly mix the water and the calcium carbonate such that the calcium carbonate is fully dispersed before adding the potassium silicate;
~2) Add the potassi~n silicate and mix thoroughly;
(3) Add the sodium carboxymethylcellulose and mix thoroughly. If sodium caTboxymethylcellulcse is added directly to the calcium carbonate, dispersion will be inhibited.
The final step in making a non-burning paper for use with cigaret~es is to dry the thus treated and coated ~eated paper.
Additionally, while the preferred embodiment discloses the use of calcium carbonate, other fillers such as titanium dioxide and magnesium dioxide may be utilized.
The method of this inven~ion provides a novel cigarette wrapper which does not burn so as to forrn an ash, but chars, such that it still contains cellulose, to an aesthetically pleasing gray color resembling conventional cigarette ash. The cigarette wrapper does not emit noxious or unpleasant odors when lit and provides a char strong enough to hold the fuel source of the cigarette in place.
Another feature of the present invention is the vari~ble perrneability of the wrapper. To provide a cigarette which is easily lit, it is important to provide a low perrneability wrapper so that during lighting 2S most of the air is pulled through the end of the cigarette at the fuel source.
Once the cigarette is lit, however, it is preferable to have paper of higher permeability so that rnore air is drawn through the wrapper to provide adequate air delivery with each puff. The wrapper of the present invention provides this versatility by having a coa~ing which reduces tne permeability of the paper from between 30% to 80% for lighting the cigarette. Once the char is fo~ned ~he coating degrades to provide a char area having approxirnately the same penneability as the original uncoated wrapper.
An example of the effect of the coating on permeability is se~
forth below:
Base Sheet PermeabilityCoated Sheet Permeability 6~00 1670 ~5~0 1 120 2700 3~4 The foregoing description relates to celtain embodiments of the present inv~ntion, and modifications or alterations may be made without departing from the spirit and scope of the inventoF as defined in the following claims.
Claims (18)
1. A method of producing a non-burning wrapper for use with smoking products, comprising the steps of:
forming a treating solution consisting essentially of:
water, calcium chloride and a reactive size for paper, treating both sides of a base paper with said treating solution to form a treated paper, drying the thus treated paper, forming a coating solution consisting essentially of water, calcium carbonate, potassium silicate, and sodium carboxymethylcellulose;
coating one side of the thus treated paper with said coating solution to form a treated and coated paper, and drying the treated and coated paper to form a non-burning wrapper for use with smoking products.
forming a treating solution consisting essentially of:
water, calcium chloride and a reactive size for paper, treating both sides of a base paper with said treating solution to form a treated paper, drying the thus treated paper, forming a coating solution consisting essentially of water, calcium carbonate, potassium silicate, and sodium carboxymethylcellulose;
coating one side of the thus treated paper with said coating solution to form a treated and coated paper, and drying the treated and coated paper to form a non-burning wrapper for use with smoking products.
2. The method of Claim 1, wherein said base paper has a permeability between 200 cm/min. and 6500 cm/min as determined by the Coresta permeability determination method.
3. The method of Claim 2, wherein said base paper is 100% cellulose.
4. The method of Claim 1, wherein said treating solution contains calcium chloride solids in an amount between 9% and 18% by weight and reactive size in an amount between 0.2% and 2.0% by weight.
5. The method of Claim 1, wherein said non-burning wrapper contains calcium chloride in an amount between 6% and 14% by weight of the treated paper and reactive size in an amount between 0.1% and 1.5% by weight of the treated paper.
6. The method of Claim 1, wherein said coating solution contains calcium carbonate solids in an amount between 2% and 8% by weight, potassium silicate solids in an amount between 1% and 5% by weight, and sodium carboxymethylcellulose in an amount between 0.3%
and 2.5% by weight.
and 2.5% by weight.
7. The method of Claim 6, wherein said coating solution is prepared by first mixing the water and calcium carbonate, then mixing in the potassium silicate, and then mixing in the sodium carboxymethylcellulose.
8. The method of Claim 1, wherein said non-burning wrapper contains calcium carbonate in an amount between 3% and 10% by weight of the wrapper, potassium silicate in an amount between 2% and 6%
by weight of the wrapper, and sodium carboxymethylcellulose in an amount between 0.3% and 1.5% by weight of the wrapper.
by weight of the wrapper, and sodium carboxymethylcellulose in an amount between 0.3% and 1.5% by weight of the wrapper.
9. A method of producing a non-burning wrapper for use with smoking products, comprising the steps of:
forming a treating solution consisting essentially of between 80.0% and 90.8% by weight water, between 9% and 18% by weight calcium chloride solids, and between 0.2% and 2.0% by weight reactive size;
treating both sides of a base paper having a permeability of between 200 and 6500 cm/min, as determined by the CORESTA method of permeability determination, with the treating solution to form a treated paper containing calcium chloride in an amount between 6% and 14% by weight of the treated paper and reactive size in an amount between 0.1% and 1.5% by weight of the treated paper, drying the thus treated paper;
forming a coating solution consisting essentially of between 84.5% and 96.7% by weight water, between 2% and 8% by weight calcium carbonate solids, and between 1% and 5% by weight potassium silicate solids, and between 0.3% and 2.5% by weight sodium carboxymethyl cellulose solids.
coating one side of the treated paper with the coating solution such that the non-burning wrapper contains calcium carbonate in an amount between 3% and 10% by weight of the non-burning wrapper, potassium silicate in an amount between 2% and 6% by weight of the non-burning wrapper, and sodium carboxymethylcellulose in an amount between 0.3% and 1.5% by weight of the non-burning wrapper after being coated with the coating solution; and drying the thus treated and coated paper to form the non-burning wrapper for use with smoking products.
forming a treating solution consisting essentially of between 80.0% and 90.8% by weight water, between 9% and 18% by weight calcium chloride solids, and between 0.2% and 2.0% by weight reactive size;
treating both sides of a base paper having a permeability of between 200 and 6500 cm/min, as determined by the CORESTA method of permeability determination, with the treating solution to form a treated paper containing calcium chloride in an amount between 6% and 14% by weight of the treated paper and reactive size in an amount between 0.1% and 1.5% by weight of the treated paper, drying the thus treated paper;
forming a coating solution consisting essentially of between 84.5% and 96.7% by weight water, between 2% and 8% by weight calcium carbonate solids, and between 1% and 5% by weight potassium silicate solids, and between 0.3% and 2.5% by weight sodium carboxymethyl cellulose solids.
coating one side of the treated paper with the coating solution such that the non-burning wrapper contains calcium carbonate in an amount between 3% and 10% by weight of the non-burning wrapper, potassium silicate in an amount between 2% and 6% by weight of the non-burning wrapper, and sodium carboxymethylcellulose in an amount between 0.3% and 1.5% by weight of the non-burning wrapper after being coated with the coating solution; and drying the thus treated and coated paper to form the non-burning wrapper for use with smoking products.
10. A non-burning wrapper for use with smoking products made in accordance with the method of Claim 1.
11. A non-burning wrapper for use with smoking products made in accordance with the method of Claim 2.
12. A non-burning wrapper for use with smoking products made in accordance with the method of Claim 3.
13. A non-burning wrapper for use with smoking products made in accordance with the method of Claim 4.
14. A non-burning wrapper for use with smoking products made in accordance with the method of Claim 5.
15. A non-burning wrapper for use with smoking products made in accordance with the method of Claim 6.
16. A non-burning wrapper for use with smoking products made in accordance with the method of Claim 7.
17. A non-burning wrapper for use with smoking products made in accordance with the method of Claim 8.
18. A non-burning wrapper for use with smoking products, comprising:
a base paper having a first side and a second side;
a treating layer on each of the first and second sides, said treating layer consisting essentially of calcium chloride in an amount between 6% and 14% by weight of the thus treated paper and reactive size for paper in an amount between 0.1% and 1.5% by weight of the thus treated paper, and a coating layer on top of one of the treating layers, said coating layer consisting essentially of calcium carbonate in an amount between 3% and 10% by weight of the non-burning wrapper, potassium silicate in an amount between 2% and 6% by weight of the non-burning wrapper, and sodium carboxymethyl cellulose in an amount between 0.3%
and 1.5% by weight of the non-burning wrapper.
a base paper having a first side and a second side;
a treating layer on each of the first and second sides, said treating layer consisting essentially of calcium chloride in an amount between 6% and 14% by weight of the thus treated paper and reactive size for paper in an amount between 0.1% and 1.5% by weight of the thus treated paper, and a coating layer on top of one of the treating layers, said coating layer consisting essentially of calcium carbonate in an amount between 3% and 10% by weight of the non-burning wrapper, potassium silicate in an amount between 2% and 6% by weight of the non-burning wrapper, and sodium carboxymethyl cellulose in an amount between 0.3%
and 1.5% by weight of the non-burning wrapper.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55658190A | 1990-07-20 | 1990-07-20 | |
| US556,581 | 1990-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2043909A1 true CA2043909A1 (en) | 1992-01-21 |
Family
ID=24221947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002043909A Abandoned CA2043909A1 (en) | 1990-07-20 | 1991-06-05 | Method of producing a non-burning outer wrapper for use with smoking products |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0467405A3 (en) |
| JP (1) | JPH05171599A (en) |
| KR (1) | KR920002881A (en) |
| AU (1) | AU638828B2 (en) |
| BR (1) | BR9102612A (en) |
| CA (1) | CA2043909A1 (en) |
| MX (1) | MX174326B (en) |
| ZA (1) | ZA914429B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3312941B2 (en) * | 1992-02-26 | 2002-08-12 | 日本たばこ産業株式会社 | cigarette |
| MY125712A (en) | 1997-07-31 | 2006-08-30 | Hercules Inc | Composition and method for improved ink jet printing performance |
| US6345625B1 (en) | 1997-12-06 | 2002-02-12 | Kar Eng Chew | Filter for secondary smoke and smoking articles incorporating the same |
| GB9928853D0 (en) | 1999-12-07 | 2000-02-02 | British American Tobacco Co | Improvements relating to smoking articles |
| WO2003005840A1 (en) * | 2001-07-10 | 2003-01-23 | Robert Fletcher (Greenfield) Limited | Self-extinguishing paper wrappers and smoking articles |
| WO2022071573A1 (en) * | 2020-10-02 | 2022-04-07 | 日本たばこ産業株式会社 | Tip paper for tobacco products with capsule filters and tobacco products |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2998012A (en) * | 1957-01-23 | 1961-08-29 | William R Lamm | Cigarette and wrapper therefor |
| US4044778A (en) * | 1973-09-10 | 1977-08-30 | Cohn Charles C | Cigarettes |
| US4489738A (en) * | 1983-03-07 | 1984-12-25 | Eli Simon | Self-extinguishing cigarettes |
| DE3476323D1 (en) * | 1984-09-03 | 1989-03-02 | Japan Tobacco Inc | Cigarette |
| AU617351B2 (en) * | 1987-09-03 | 1991-11-28 | British-American Tobacco Company Limited | Improvements relating to smoking articles |
| US4941485A (en) * | 1989-04-18 | 1990-07-17 | R. J. Reynolds Tobacco Company | Cigarette |
-
1991
- 1991-05-02 AU AU76346/91A patent/AU638828B2/en not_active Ceased
- 1991-06-05 CA CA002043909A patent/CA2043909A1/en not_active Abandoned
- 1991-06-10 ZA ZA914429A patent/ZA914429B/en unknown
- 1991-06-21 BR BR919102612A patent/BR9102612A/en not_active Application Discontinuation
- 1991-07-17 JP JP3176971A patent/JPH05171599A/en active Pending
- 1991-07-19 KR KR1019910012358A patent/KR920002881A/en not_active Application Discontinuation
- 1991-07-19 EP EP19910112146 patent/EP0467405A3/en not_active Ceased
- 1991-07-19 MX MX9100303A patent/MX174326B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ZA914429B (en) | 1992-04-29 |
| JPH05171599A (en) | 1993-07-09 |
| KR920002881A (en) | 1992-02-28 |
| AU638828B2 (en) | 1993-07-08 |
| MX174326B (en) | 1994-05-06 |
| EP0467405A3 (en) | 1992-03-11 |
| AU7634691A (en) | 1992-01-23 |
| EP0467405A2 (en) | 1992-01-22 |
| BR9102612A (en) | 1992-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |