US3354013A - Method and apparatus for applying particulate additives to continuous filament tow - Google Patents

Method and apparatus for applying particulate additives to continuous filament tow Download PDF

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Publication number
US3354013A
US3354013A US326095A US32609563A US3354013A US 3354013 A US3354013 A US 3354013A US 326095 A US326095 A US 326095A US 32609563 A US32609563 A US 32609563A US 3354013 A US3354013 A US 3354013A
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United States
Prior art keywords
tow
additive
chamber
continuous filament
mass
Prior art date
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Expired - Lifetime
Application number
US326095A
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English (en)
Inventor
Robert L Terrell
Joel B Stevens
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 US326095A priority Critical patent/US3354013A/en
Priority to FR995567A priority patent/FR1414455A/fr
Priority to DEE28208A priority patent/DE1274946B/de
Priority to CH1518264A priority patent/CH434077A/fr
Priority to BE656238D priority patent/BE656238A/xx
Priority to NL6413660A priority patent/NL6413660A/xx
Priority to ES0306375A priority patent/ES306375A1/es
Priority to AT999664A priority patent/AT263590B/de
Priority to GB48102/64A priority patent/GB1092812A/en
Application granted granted Critical
Publication of US3354013A publication Critical patent/US3354013A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • our invention involves introducing a gaseous stream upwardly into the additive to thereby form a fluidized bed and reduce the effective bulk density thereof while simultaneously conducting a band of continuous filament tow through said bed.
  • Additives which may be applied to the tow from such a mass by the introduction of motivating gas such as air, carbon dioxide, nitrogen or the like include activated carbon, silica, activated alumina, molecular sieves, calcium carbonate, rice starch, corn starch, wheat flour, powdered sugar and the like. Preferred in order of preference are activated carbon, corn starch and calcium carbonate.
  • the porous bottom of the particle mass may comprise a diffuser plate.
  • This may consist of a material in which the minute orifices are irregularly scattered as in pressed cane board or the like such as used in the construction of homes.
  • the rate of addition of additive to the diffused mass of particulate matter may be varied so as to maintain a constant level dependent upon the amount of additive deposited on the tow as it passes through at the desired rate.
  • a screw feeder may be used for this purpose.
  • the tow may be passed appropriately over and under rolls located just above the mass while the additive is .being applied thereto.
  • the mass of additive particles is preferably located within an enclosed structure such as a chamber.
  • FIG. 1 is a schematic representation depicting the tow treating apparatus arrangement of this invention.
  • FIG. 2 is a graph showing the increased tar removal found for filter rods prepared from tow to which additive is applied according to this invention.
  • tow 10 is moved from a bale or other suitable source 12 and passed by Way of banding jet 14 around guide 16 prior to passing between pretension rolls 18.
  • the tow next passes between blooming rolls 20 and 22, one of which may be configured, as with squarenotched parallel longitudinal grooves.
  • the blooming step is more specifically described in Ser. No. 259,852, filed Feb. 20, 1963, of our coworker Fritz now Patent No. 3,255,506. After being bloomed, the tow may pass through a second banding jet 24.
  • Bonding agent is applied to the tow as it passes between plasticizer applicator rolls 28 and 30 prior to entering the particulate mass of fluidized bed 32.
  • the mass of particulate matter of :bed 32 is preferably contained in an enclosed structure 34.
  • the proper additive level may be maintained by introducing the particles through conduit 36 such as, for example, by feed screw 38.
  • the particulate substance is applied to both sides of the tow by passing the tow around rolls 39, 40 and 42, after which the tow is removed from the bed 32 and may then be delivered by passing between the nip of delivery rolls 46 and 48 to garniture or other suitable filter forming means 50.
  • the additive chamber 34 may be provided with an exhaust channel 54.
  • Inert gas is introduced by a conduit 56 below the bottom of the particulate mass of bed 32 through an appropriate porous substance such as a diffuser plate 58in such a way as to stir it up evenly for application substantially uniformly to both sides of the tow passing through the mass 34.
  • the particulate mass of bed 32 may be enclosed in a chamber 32 to help maintain cleanliness and control oxygen content of the atmosphere over the tow and additive.
  • the amount of additive picked up by the tow is around of bed 32.
  • the amount of additive applied may be varied by changing the density of the particulate mass, the length of tow travelled therethrough, the average particle size, the tow speed, the tow filament size or the bonding agent content of the tow.
  • a bonding agent may be used on the tow to improve the uniformity of additive pick-up. Use of bonding agent may also be of some help in minimizing subsequent loss of additive and increasing the firmness of filter elements formed in graniture 58.
  • Scraper bars (not shown) may be used to increase the uniformity of additive distribution on the tow after it emerges from the particulate mass -In' FIG. 2 the pressure drop in inches of water for 102 X 24.8 mm.
  • Example I A5 d./f., 60,000 t.d. cellulose acetate tow was bloomed using the apparatus arrangement of FIG. 1 and passed through a mass of activated carbon to which air was supplied from the bottom through a heterogeneously perforated plate. No bonding agent was applied to the tow.
  • the activated carbon was 30 x 140 mesh in particle size and was made from coconut shell.
  • Filter rods were made which were composed of 0.835 gram cellulose acetate and 0.450 gram activated carbon and were 102 mm. in length and 24.8 mm. in circumference. A 1-7-mm. portion of this filter rod was afi'ixed to a 68-mm. cigarette and smoked on an automatic smoking machine which produced a 35 ml.
  • Example 11 A 5 d./f., 60,000 t.d. cellulose acetate tow was bloomed using the apparatus arrangement of FIG. 1, and 0.040
  • a filter rod made from the tow thus treated contained 76.2% cellulose acetate by weight, 16.3% .starch, and 7.5% triacetin. Tar removal i v .(7) a pair of delivery rolls etficiency was 50% at a rod pressure of 14 inches of water.
  • Example IV 5 d./i. Percent Tar Removal Additive Pressure Dust This No Drop Booth Invention Additive Do. 11.3 37 39 28 50/50 Staroh/CACO3. 11.9 54 30 65/35 Starch/GACO3 13.0 54 33 75/25 Starch/CAOOQ. 13.2 52 33 From the foregoing description and examples it is believed apparent that we have provided a method and apparatus whereby particulate additive may be distributed substantially uniformly over continuous filament tow by passing a gaseous medium upwardly through a mass of the additive, the gaseous medium being introduced to the mass through a heterogeneously porous surface over substantially its entire surface. By our system the effect of bulk density of the additive is reduced and the tow is enabled to pass through the treatment zone with a minimum of resistance.
  • Apparatus for applying particulate additives to tow comprising an enclosed chamber, means for introducing particulate additive to said chamber and maintaining same as a mass in the lower portion of said chamber, means for introducing gas to the bottom of said-chamber, a diffuser plate positioned parallel to the bottom of said chamber somewhat above said bottom, a plurality of rolls located in the mass portion of said chamber and'adapted for movement of a band of tow therearound, and a pair of delivery rolls located in the upper portion of said chamber adapted to remove tow from the mass port-ion of said chamber and for conducting same from said chamber to collecting means.
  • a process for the application of additives to filamentary material which comprises feeding the material from a source of supply, applying a bonding agent to said material, retaining the additive in an enclosed chamber, forming a fluidized bed by passing a gaseous medium upwardly into the chamber through said additive, and circuitously passing said filamentary material through said bed so that a substantially uniform amount of additive becomes adhered to the material.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
US326095A 1963-11-26 1963-11-26 Method and apparatus for applying particulate additives to continuous filament tow Expired - Lifetime US3354013A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US326095A US3354013A (en) 1963-11-26 1963-11-26 Method and apparatus for applying particulate additives to continuous filament tow
FR995567A FR1414455A (fr) 1963-11-26 1964-11-19 Procédé et appareillage servant à appliquer un produit pulvérulent sur un ruban de filaments, notamment dans la fabrication de filtres pour la fumée de tabac
DEE28208A DE1274946B (de) 1963-11-26 1964-11-24 Vorrichtung zum Aufbringen von Zusatzstoffen auf einen fortlaufenden Fadenstrang fuer Tabakrauchfilter od. dgl.
BE656238D BE656238A (enrdf_load_stackoverflow) 1963-11-26 1964-11-25
CH1518264A CH434077A (fr) 1963-11-26 1964-11-25 Procédé de fabrication d'éléments filtrants de la fumée du tabac et appareil pour sa mise en oeuvre
NL6413660A NL6413660A (enrdf_load_stackoverflow) 1963-11-26 1964-11-25
ES0306375A ES306375A1 (es) 1963-11-26 1964-11-25 Un procedimiento para aplicar aditivo a estopa de filamentos continuos para la fabricacion de filtros para humo de tabaco
AT999664A AT263590B (de) 1963-11-26 1964-11-26 Verfahren und Einrichtung zum Auftragen teilchenförmiger Stoffe auf ein Bündel ununterbrochener Fäden
GB48102/64A GB1092812A (en) 1963-11-26 1964-11-26 Apparatus for applying additives to continuous filament tow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US326095A US3354013A (en) 1963-11-26 1963-11-26 Method and apparatus for applying particulate additives to continuous filament tow

Publications (1)

Publication Number Publication Date
US3354013A true US3354013A (en) 1967-11-21

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ID=23270798

Family Applications (1)

Application Number Title Priority Date Filing Date
US326095A Expired - Lifetime US3354013A (en) 1963-11-26 1963-11-26 Method and apparatus for applying particulate additives to continuous filament tow

Country Status (8)

Country Link
US (1) US3354013A (enrdf_load_stackoverflow)
AT (1) AT263590B (enrdf_load_stackoverflow)
BE (1) BE656238A (enrdf_load_stackoverflow)
CH (1) CH434077A (enrdf_load_stackoverflow)
DE (1) DE1274946B (enrdf_load_stackoverflow)
ES (1) ES306375A1 (enrdf_load_stackoverflow)
GB (1) GB1092812A (enrdf_load_stackoverflow)
NL (1) NL6413660A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474616A (en) * 1967-06-29 1969-10-28 Du Pont Product and process
US4305343A (en) * 1980-02-25 1981-12-15 Sonco Wholesale Fence, Inc. Polymer coated chain link fencing
US5206085A (en) * 1987-08-13 1993-04-27 Across Co., Ltd. Preformed yarn useful for forming composite articles and process for producing same
US5484504A (en) * 1993-12-29 1996-01-16 The United States Of America As Represented By The Secretary Of Agriculture Device for attaching eggs of predaceous insects to string and a delivery system
US5639307A (en) * 1995-01-17 1997-06-17 Electrostatic Technology, Inc. Fiber bundle coating apparatus
US5797982A (en) * 1993-06-30 1998-08-25 Acadia Elastomers Corporation Apparatus for manufacturing a seamless packing material
EP1692957A1 (de) * 2005-02-16 2006-08-23 Hauni Maschinenbau AG Aufbereitung eines Streifens aus Filtermaterial der Tabak verarbeitenden Industrie
EP2255683A1 (de) * 2009-05-26 2010-12-01 HAUNI Maschinenbau AG Aufbereitung eines Filtermaterialstreifens der Tabak verarbeitenden Industrie
US10384816B2 (en) * 2014-03-14 2019-08-20 Altria Client Services Llc Polymer encased smokeless tobacco products

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1131581B (it) * 1979-07-17 1986-06-25 Molins Ltd Dispositivo per il trattamento di un materiale per filtri,particolarmente per l'industria del tabacco
GB8823388D0 (en) * 1988-10-05 1988-11-09 Cigarette Components Ltd Tobacco smoke filter containing particulate additive
GB8921659D0 (en) * 1989-09-26 1989-11-08 Cigarette Components Ltd Particulate sorbent smoke filter
DE102004048651A1 (de) * 2004-10-06 2006-04-13 Rhodia Acetow Gmbh Tabakrauchfilter oder -filterelemente mit einem Gehalt an Zusatzstoffen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881772A (en) * 1956-02-29 1959-04-14 Eastman Kodak Co Tobacco smoke filters
US2881770A (en) * 1954-05-27 1959-04-14 Eastman Kodak Co Fibrous tobacco smoke filters
US2917054A (en) * 1955-04-22 1959-12-15 Eastman Kodak Co Fibrous tobacco smoke filter containing solid additive
US3013891A (en) * 1957-09-18 1961-12-19 Lorillard Co P Tobacco smoke filter material
US3017309A (en) * 1957-02-21 1962-01-16 Eastman Kodak Co Method for the manufacture of filters composed of cellulose acetate
US3043736A (en) * 1959-03-02 1962-07-10 Eastman Kodak Co Method for making additive filters

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881770A (en) * 1954-05-27 1959-04-14 Eastman Kodak Co Fibrous tobacco smoke filters
US2917054A (en) * 1955-04-22 1959-12-15 Eastman Kodak Co Fibrous tobacco smoke filter containing solid additive
US2881772A (en) * 1956-02-29 1959-04-14 Eastman Kodak Co Tobacco smoke filters
US3017309A (en) * 1957-02-21 1962-01-16 Eastman Kodak Co Method for the manufacture of filters composed of cellulose acetate
US3013891A (en) * 1957-09-18 1961-12-19 Lorillard Co P Tobacco smoke filter material
US3043736A (en) * 1959-03-02 1962-07-10 Eastman Kodak Co Method for making additive filters

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474616A (en) * 1967-06-29 1969-10-28 Du Pont Product and process
US4305343A (en) * 1980-02-25 1981-12-15 Sonco Wholesale Fence, Inc. Polymer coated chain link fencing
US5206085A (en) * 1987-08-13 1993-04-27 Across Co., Ltd. Preformed yarn useful for forming composite articles and process for producing same
US5797982A (en) * 1993-06-30 1998-08-25 Acadia Elastomers Corporation Apparatus for manufacturing a seamless packing material
US5484504A (en) * 1993-12-29 1996-01-16 The United States Of America As Represented By The Secretary Of Agriculture Device for attaching eggs of predaceous insects to string and a delivery system
US5639307A (en) * 1995-01-17 1997-06-17 Electrostatic Technology, Inc. Fiber bundle coating apparatus
EP1692957A1 (de) * 2005-02-16 2006-08-23 Hauni Maschinenbau AG Aufbereitung eines Streifens aus Filtermaterial der Tabak verarbeitenden Industrie
US20060194683A1 (en) * 2005-02-16 2006-08-31 Hauni Maschinenbau Ag Processing of a filter material band in the tobacco industry
EP2255683A1 (de) * 2009-05-26 2010-12-01 HAUNI Maschinenbau AG Aufbereitung eines Filtermaterialstreifens der Tabak verarbeitenden Industrie
US10384816B2 (en) * 2014-03-14 2019-08-20 Altria Client Services Llc Polymer encased smokeless tobacco products
US11198151B2 (en) 2014-03-14 2021-12-14 Altria Client Services Llc Polymer encased smokeless tobacco products
US11731162B2 (en) 2014-03-14 2023-08-22 Altria Client Services Llc Polymer encased smokeless tobacco products
US12151260B2 (en) 2014-03-14 2024-11-26 Altria Client Services Llc Polymer encased smokeless tobacco products

Also Published As

Publication number Publication date
AT263590B (de) 1968-07-25
CH434077A (fr) 1967-04-15
GB1092812A (en) 1967-11-29
DE1274946B (de) 1968-08-08
BE656238A (enrdf_load_stackoverflow) 1965-03-16
ES306375A1 (es) 1965-05-01
NL6413660A (enrdf_load_stackoverflow) 1965-05-27

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