US3043736A - Method for making additive filters - Google Patents

Method for making additive filters Download PDF

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Publication number
US3043736A
US3043736A US796259A US79625959A US3043736A US 3043736 A US3043736 A US 3043736A US 796259 A US796259 A US 796259A US 79625959 A US79625959 A US 79625959A US 3043736 A US3043736 A US 3043736A
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US
United States
Prior art keywords
tow
filaments
carbon
filter
filters
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.)
Expired - Lifetime
Application number
US796259A
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English (en)
Inventor
George P Touey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
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Eastman Kodak Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US796259A priority Critical patent/US3043736A/en
Application granted granted Critical
Publication of US3043736A publication Critical patent/US3043736A/en
Priority to BE670052A priority patent/BE670052A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers
    • 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
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent

Definitions

  • This invention relates to methods for making tobacco smoke filterin-g material and elements thereof suitable for use in cigarettes, pipes, cigarette holders and cigar holders. More particularly,the invention is concerned with improvements in making filters of the kind disclosed in my appliaction Serial No. 432,931, now -U.S. Patent No. 2,881,770, of which-the instant invention is a continuation-in-part.
  • the carbon is continuously applied to an opened and banded'moving tow. That is to say, tow from a supply roll is opened-to debundlize the filaments and provide a larger and more uniform tow cross section, and theopened tow is spread uniformly to a much larger widthof e.g., 8 times its original width, thereby exposing substantially all of the filaments to material, i.e.
  • plasticizer issuing from a dispenser adjacent which the towpasses.
  • the carbon may be added before, simultaneously with, or after the plasticizer, preferably with or after.
  • the finely divided carbon is preferably sufiicientlyiadhered to the filaments so that it willnot dust ofiLJcome loose in the smokers mouth or otherwise present such type difii: culty. Accordingly, it is believed apparent that providing improved methods for making carbon containing filters of the. type just referred to represents a highly "desirable result. Atter extended investigation I have found certain improved methods for manufacturing such filters.
  • This invention therefore, has as one object an improved method for theproduction of cigarette smoke filters con? sisting of'a bundle of substantially longitudinally oriented textile filaments infused with finely divided carbonparticles. Another object is to provide methods of theclass indicated tor increasing the bonding of the particles onto the filament filter. A still further object is to, make an additive filter :which 'is capableof removing nicotine, tars and other deleterious components of cigarette smoke without oausingthesm'oke to be dry or distasteful] Another object is toprovide improved methods which'are efiicient and efiectiv'e, yet relatively economical and simple in operation.
  • my filter product comprises a-longitudinally oriented mass of substantially lengthwise aligned filaments, the spacing of substantially all groups of adjacent filaments providing minute passages forjjs'moke therethrough, said mass carrying finely divided carbon particlea'said particles occupying positionsinand partially blocking said passages whereby a substantial por;
  • T e oi oi arette filter 1:1 15 mm.) Mg. of Mg. of Mg. of Mg. 01' YD g p tars 1 nicotine 1 tars nicotine Elasticized cellulose acetate tow -Q. 130 20 5 Acetate tow filter 125 18 Plasticized cellulose acetate tow co sin g 4% Acetate tow filter containing 9% lampblack powbone charcoal powder....'.... 108 17 der 7 V 113 15 l Obtained from collected; smrillref (g him fizlfitered cllga costumeys. N orE.-Moisture of the tobacco in each of the cigarettes equals 12.0%.
  • Example II J A loose, i.e., partially opened crimpcd continuous filament tow ofccllulose acctateyarn containing approxi mately 10,000 fibersof. 8 denier per filament; waspulled through abath containing a highly agltaced-slurryof commercially available activaredwoodcharcoal in water.
  • ganic plasnicizer capable of partially: dissolving the cellulose acetate filamen-issuch as described in Example -I.
  • Iilustrationsof other-suitable plasticizers are: glycerol impregnated tow was processed into filter rods in a garnie 'diand t'riacetate, glycerol di and tripropionate, propylene glycol monoand diacetate,- di(methoxyethyl)phthalate, triethyl citrate, acetyl-tricthyl cior'ate and mcthylph'nhalylethyl ,glycollare... 1 5 v
  • Example IV f A how of cellulose acetate-1 yarn containing. approximately 6,000 fibers of five denier per filament was pulled over a compressed air device.
  • Example VI I A tow of cellulose acetate yarn: containing approximately 12,000 fibers of five denier per filament was sprayed with a mixture consisting. of 1 part polyvinyl ace tat e,.cn1ulsion1.(55% solids-45% water), 1 part ac; tivated charcoal and 2. parts water. The tow was proc; essed into filter tips, attached to cigarettesandanalyzed as'in Example 'IV.. Thedried tips'co'ntained 13.4% of i polyvinyl acetate end-24.4% activated charcoal. They removed 20% of the aldehydes-from the gaseous phase of cigarette'smoke. l
  • Example VII A tow of cellulose acetate yarn containing approximately 12,000 fibers of five denier per filament was sprayed with a mixture consisting of 1 part polyvinyl acetate emulsion (55% solids-45% Water) and 2 parts water. The tow was processed into filter tips, attached to cigarettes and analyzed as in Example IV. The tips contained 22.4% polyvinyl acetate. They removed less than 4% of the aldehydes from. cigarette smoke.
  • Example VIII Example IX A cellulose acetate tow of 5 denier per filament, 55,500 total denier was sprayed with a mixture of stearyl alcohol and finely powdered activated carbon to give an add-on, based on tow weight, of 22.5% stearyl alcohol and 4.5% carbon. Removals as determined in Examplev VIII averaged 53% for a mm. tip having a pressure drop of 2.7 inches of water.
  • Example X A mixture of stearyl alcohol and activated carbon was sprayed on a 2.1 denier per filament, 44,400 total denier acetate tow to give an add-on of 12.5% stearyl alcohol and 2.5% carbon. Removals as determined by Example VIII averaged 48% for a. standard 15 tip having a pressure drop of 2.6 inches of water.
  • Example XI An acetate tow of 2.1 denier per filament, 44,000 total denier was sprayed with a mixture of stearic acid and activated charcoal to give an add-on of 12.5% stearic acid and 2.5% carbon. When tested in the usual manner, a standard 15 mm. tip gave an average removal of 52% at a 2.7-inch pressure drop.
  • the type of carbon employed is not a critical factor. Rather, the form of the carbon is more important.
  • the carbon should be in a powdered form so that it can be readily slurried in a liquid or passed through a spraying nozzle.
  • a low viscosity type of organic solvent soluble cellulose ester could be used as a thickener and tackefier for the plasticizer. All of these compounds are readily soluble in the plasticizers already mentioned for cellulose acetate tow filters. 3 They are particularly effective with glycerol diand triacetate. As apparent from the above examples, unusually good results have been obtained with filters prepared from a crimped continuous .filament tow of cellulose acetate fibers sprayed with certain plasticizers in accordance with the preferred embodiments of this invention.
  • the usefulness of the methods extends to other synthetic fibrous filters, including 011086 prepared from fibers of viscose, polyamides and polyesters, where the fibers are are coextensive with the body of the filter.
  • the method for the continuous manufacture of tobacco smoke filters which comprises continuously withdrawing crimped continuous tow of synthetic spun filaments from a package of such tow, banding the tow to a width of at least six inches, applying to the banded to'w both bonding agent and powdered additive, reforming the tow thus treated into the desired filter shape and wrapping the filter with a wrapper.
  • the tow consists essentially of cellulose acetate filaments of a denier per filament of less than 8 and of a total denier of less than 120,000.
  • the bonding agent is a latex material essentially comprised .of a polyvinyl-polymeric compound. Y m V f 5.
  • the method for manufacturing tobacco smoke filters which comprises withdrawing crimped continuous celluloseacetate filaments of a denierperfilament of less than Sand a'totaldenier ofless than "100,000 from a package of such filaments, banding such filaments to a width of at least six inches, applying to the banded filaments both a bonding media and activated carbon particles, the bonding mediab'eing such that it will not materially deactivate 8 i the activated carbon additive, reforming the filaments thus treated into the desired filter shape and applying a wrapper around the circumference of the-filter.
  • a method of making tobacco smoke filters from crimpedcontinuous cellulose acetate filaments wherein the filaments are handed into an opened up condition the step which comprises spraying the opened up fil aments with an emulsion essentially comprised of a polyvinyl compound from the group consisting of polyvinyl acetate and polyvinylisobutyrate whichpolyvinyl compound has mixed therewith powdered charcoal and water;

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
US796259A 1959-03-02 1959-03-02 Method for making additive filters Expired - Lifetime US3043736A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US796259A US3043736A (en) 1959-03-02 1959-03-02 Method for making additive filters
BE670052A BE670052A (enrdf_load_stackoverflow) 1959-03-02 1965-09-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US796259A US3043736A (en) 1959-03-02 1959-03-02 Method for making additive filters

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US3043736A true US3043736A (en) 1962-07-10

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BE (1) BE670052A (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3311519A (en) * 1964-01-28 1967-03-28 Eastman Kodak Co Additive filter
US3354013A (en) * 1963-11-26 1967-11-21 Eastman Kodak Co Method and apparatus for applying particulate additives to continuous filament tow
US3365346A (en) * 1963-12-11 1968-01-23 Eastman Kodak Co Method for treatment of tow
US3371000A (en) * 1963-06-27 1968-02-27 Cigarette Components Ltd Method and apparatus for making integral multiple tobacco smoke filters
US3390039A (en) * 1964-10-09 1968-06-25 Eastman Kodak Co Method and apparatus for making additive filters
US3438806A (en) * 1965-05-20 1969-04-15 American Cyanamid Co Process for the manufacture of cigarette containing cyanamide-cellulose acetate filter elements
DE2362286A1 (de) * 1973-07-30 1975-02-20 Honda Motor Co Ltd Vergaser fuer eine verbrennungsmaschine mit mindestens einem zylinder
US3882878A (en) * 1973-08-22 1975-05-13 Daicel Ltd Method for preparing cigarette filter of cellulose acetate fibers
US3890983A (en) * 1973-08-22 1975-06-24 Daicel Ltd Method for preparing cigarette filter
US4019942A (en) * 1975-03-12 1977-04-26 Philip Morris Incorporated Maintaining plasticizer temperature in tobacco filter rod formation, and apparatus therefor
US4752348A (en) * 1985-03-29 1988-06-21 Celanese Corporation Localized liquid additive applicator system for continuous cylindrical product
EP1574142A1 (en) * 2004-03-08 2005-09-14 Acetate Products Limited Process for making filter tow
DE102004048651A1 (de) * 2004-10-06 2006-04-13 Rhodia Acetow Gmbh Tabakrauchfilter oder -filterelemente mit einem Gehalt an Zusatzstoffen
US20070056600A1 (en) * 2005-09-14 2007-03-15 R. J. Reynolds Tobacco Company Filtered smoking article
US20080295853A1 (en) * 2007-05-31 2008-12-04 R. J. Reynolds Tobacco Company Filtered Smoking Article
CN101396168B (zh) * 2007-09-24 2013-03-13 国际烟草机械波兰私人控股有限责任公司 提高有机植物材料的膨胀和干燥处理效率的方法和供给器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373296A (en) * 1943-08-25 1945-04-10 James A Donnelly Smoking pipe and method of making same
US2763267A (en) * 1951-11-27 1956-09-18 Muller Paul Adolf Smoke filter of fibrous material, especially for tobacco products
US2768913A (en) * 1954-10-22 1956-10-30 Ohio Commw Eng Co Cigarette filter tips from dextran
US2774680A (en) * 1953-10-07 1956-12-18 Edward J Hackney Process for making aerosol filters
US2794480A (en) * 1952-12-05 1957-06-04 Eastman Kodak Co Apparatus for the manufacture of filters composed of cellulose acetate
US2794239A (en) * 1952-12-05 1957-06-04 Eastman Kodak Co Tow for use in the production of tobacco smoke filters
US2815761A (en) * 1956-02-29 1957-12-10 Eastman Kodak Co Fibrous tobacco smoke filter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373296A (en) * 1943-08-25 1945-04-10 James A Donnelly Smoking pipe and method of making same
US2763267A (en) * 1951-11-27 1956-09-18 Muller Paul Adolf Smoke filter of fibrous material, especially for tobacco products
US2794480A (en) * 1952-12-05 1957-06-04 Eastman Kodak Co Apparatus for the manufacture of filters composed of cellulose acetate
US2794239A (en) * 1952-12-05 1957-06-04 Eastman Kodak Co Tow for use in the production of tobacco smoke filters
US2774680A (en) * 1953-10-07 1956-12-18 Edward J Hackney Process for making aerosol filters
US2768913A (en) * 1954-10-22 1956-10-30 Ohio Commw Eng Co Cigarette filter tips from dextran
US2815761A (en) * 1956-02-29 1957-12-10 Eastman Kodak Co Fibrous tobacco smoke filter

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3371000A (en) * 1963-06-27 1968-02-27 Cigarette Components Ltd Method and apparatus for making integral multiple tobacco smoke filters
US3354013A (en) * 1963-11-26 1967-11-21 Eastman Kodak Co Method and apparatus for applying particulate additives to continuous filament tow
DE1274946B (de) * 1963-11-26 1968-08-08 Eastman Kodak Co Vorrichtung zum Aufbringen von Zusatzstoffen auf einen fortlaufenden Fadenstrang fuer Tabakrauchfilter od. dgl.
US3365346A (en) * 1963-12-11 1968-01-23 Eastman Kodak Co Method for treatment of tow
US3311519A (en) * 1964-01-28 1967-03-28 Eastman Kodak Co Additive filter
US3390039A (en) * 1964-10-09 1968-06-25 Eastman Kodak Co Method and apparatus for making additive filters
US3438806A (en) * 1965-05-20 1969-04-15 American Cyanamid Co Process for the manufacture of cigarette containing cyanamide-cellulose acetate filter elements
DE2362286A1 (de) * 1973-07-30 1975-02-20 Honda Motor Co Ltd Vergaser fuer eine verbrennungsmaschine mit mindestens einem zylinder
US3882878A (en) * 1973-08-22 1975-05-13 Daicel Ltd Method for preparing cigarette filter of cellulose acetate fibers
US3890983A (en) * 1973-08-22 1975-06-24 Daicel Ltd Method for preparing cigarette filter
US4019942A (en) * 1975-03-12 1977-04-26 Philip Morris Incorporated Maintaining plasticizer temperature in tobacco filter rod formation, and apparatus therefor
US4752348A (en) * 1985-03-29 1988-06-21 Celanese Corporation Localized liquid additive applicator system for continuous cylindrical product
EP1574142A1 (en) * 2004-03-08 2005-09-14 Acetate Products Limited Process for making filter tow
WO2005084466A1 (en) * 2004-03-08 2005-09-15 Acetate Products Ltd Process for making filter tow
JP2007527725A (ja) * 2004-03-08 2007-10-04 アセテート・プロダクツ・リミテッド フィルタートウ
US20070272261A1 (en) * 2004-03-08 2007-11-29 Craig Day Process for Making Filter Tow
US7806817B2 (en) 2004-03-08 2010-10-05 Acetate Products Ltd. Process for making filter tow
CN1976603B (zh) * 2004-03-08 2011-10-26 醋酸盐产品有限公司 制造过滤芯丝束的方法
DE102004048651A1 (de) * 2004-10-06 2006-04-13 Rhodia Acetow Gmbh Tabakrauchfilter oder -filterelemente mit einem Gehalt an Zusatzstoffen
US20070056600A1 (en) * 2005-09-14 2007-03-15 R. J. Reynolds Tobacco Company Filtered smoking article
WO2007033272A1 (en) * 2005-09-14 2007-03-22 R. J. Reynolds Tobacco Company Filtered smoking article
JP2009507518A (ja) * 2005-09-14 2009-02-26 アール・ジエイ・レイノルズ・タバコ・カンパニー フィルタ付き喫煙品
US20080295853A1 (en) * 2007-05-31 2008-12-04 R. J. Reynolds Tobacco Company Filtered Smoking Article
WO2008150787A3 (en) * 2007-05-31 2009-04-09 Reynolds Tobacco Co R Filtered smoking article
CN101396168B (zh) * 2007-09-24 2013-03-13 国际烟草机械波兰私人控股有限责任公司 提高有机植物材料的膨胀和干燥处理效率的方法和供给器

Also Published As

Publication number Publication date
BE670052A (enrdf_load_stackoverflow) 1966-01-17

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