US3358640A - Device for treating cigarette filter plugs - Google Patents

Device for treating cigarette filter plugs Download PDF

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Publication number
US3358640A
US3358640A US356856A US35685664A US3358640A US 3358640 A US3358640 A US 3358640A US 356856 A US356856 A US 356856A US 35685664 A US35685664 A US 35685664A US 3358640 A US3358640 A US 3358640A
Authority
US
United States
Prior art keywords
solvent
chamber
plugs
filter plugs
adhesive
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
US356856A
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English (en)
Inventor
Kato Shigehiko
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.)
Kurashiki Rayon Co Ltd
Original Assignee
Kurashiki Rayon Co Ltd
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 Kurashiki Rayon Co Ltd filed Critical Kurashiki Rayon Co Ltd
Application granted granted Critical
Publication of US3358640A publication Critical patent/US3358640A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/60—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in dry state, e.g. thermo-activatable agents in solid or molten state, and heat being applied subsequently
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof

Definitions

  • the adhering is not effective, thus it is obvious that all the adhesive must be dissolved by a solvent or by heating it to a liquid state, then dried and solidified again, otherwise adhering points are not formed.
  • the adhesive is dipped into a liquid solvent the eflicient adhering characteristics of the powder process are not attained.
  • the plug is treated with solvent vapor, thereby effectively utilizing the speciality of the powder adhesive to create positive adhering points in the plug. Since with the present invention a large quantity can be treated quickly in a small space and volume and safely operated, it provides tremendous advantages from the commercial point of view.
  • the device is provided with a solvent recovering means comprising an enclosed chamber 2 provided with a temperature regulating jacket 1 having a solvent reservoir 3 at its bottom, means 4 for heating the solvent, and an outlet 5 for the solvent vapor and hot air positioned at the top of the chamber.
  • the cigarette filter plugs are arranged vertically in a plug box 6 so as to have their upper and lower cut ends exposed to the outside of the box 6.
  • the boxes are arranged in the enclosed chamber in upper and lower layers.
  • the solvent is then heated by means of the heating device 4 so that it evaporates.
  • hot water is passed through the temperature regulating jacket 1 and the temperature in the enclosed chamber 2 is maintained at about the boiling point of the solvent.
  • a proper amount of the solvent vapor liquefies when passing through the plugs to sufficiently wet them. If the temperature in the chamber is too low there is too much liquefied solvent which circulates into the plugs to prevent the favorable point adhesion. On the other hand, if the content of solvent vapor in the chamber is not enough, the treating time becomes longer, and, if the temperature is too high the solvent vapor does not substantially liquefy and the adhesive is not dissolved. Accordingly, it is desirable to maintain the temperature in chamber 1 at 1-3 C. lower than the boiling point of solvent used.
  • the device according to the invention provides that the chamber temperature be regulated by water or hot air in the temperature regulating jacket 1.
  • the time for dissolving the adhesive powder can be shortened by raising the temperature.
  • the plugs can be easily maintained at a suitable temperature by heating or cooling the jacket chamber by passing hot or cold water or air through the jacket. By quick dissolving the adhesive with solvent the operation can be safely performed. After evaporating the solvent remaining in the plug by heating the chamber it is driven out by blowing-in hot air through the inlet 9.
  • all operations as above described are carried out continuously in one chamber so that the operation is not only easy but it provides quick and safe treatment of a large quantity of plugs.
  • the heating device 4 for evaporating the solvent is preferably of such a type that the temperature can be regulated by the boiling point of the solvent and is soconstructed that water or other heating medium is introduced through the pipe 10 into the heating device 4 discharged through pipe 12, and heated by passing steam through the heat exchanger 11.
  • the door of the enclosed chamber should be tightly sealed by means of a packing made of a material resistant to the solvent and provided with a perfect locking means.
  • the other feed inlet 8 for acetone, hot air inlet 9, outlet 5 of hot air and solvent and the pipes communicating to the enclosed chamber 2 should also be tightly sealed. With perfect sealing the loss of solvent and heat is eliminated and danger is avoided.
  • the plug receiving box 6 is provided at its bottom with gauze having smaller meshes than the diameter of the plug allowing it to freely pass the vapor, thereby avoiding any accumulation of solvent liquid on the bottom of the container.
  • the plug receiving box may consist of a stack of boxes to be piled one on the other as shown in the drawing, may be put on stoppers fixed to the inside wall of the enclosed chamber 2 or may be expanded in the chamber. In any case, it is preferable that plugs in the upper and lower stages do not contact each other. It is convenient to construct a block of several receivers convenient for packing by combining the frame for packing plugs with a net-shaped receiver dish and packing it into the enclosed chamber. In order to pack plugs 7 into the plug receiving box 6 it is also convenient to make one side of the box 6 open and direct it upward by sitnating the box crosswise facilitating the packing of the piledup plugs.
  • the adhesive and solvent used for the manufacture of cigarette filter plugs by powder adhering process are starch, casein or polyvinyl alcohol, which use Water as its solvent, but in most cases powder of cellulose acetate, polymethylmethacrylate, polyvinyl acetate and the like high molecular weight substances may also 'be used as the adhesive and alcohol, acetone, benzene and the like as the solvent.
  • the adhesive and alcohol may also 'be used as the adhesive and alcohol, acetone, benzene and the like as the solvent.
  • With the present invention there is no tendency of solvent vapor to leak out as all vapors are discharged through the exhaust outlet where it can be collected by directly connecting a cooler 13 and a solvent receiver 14. Since the exhaust from the hot air driving away the solvent does not contain a substantial amount of solvent it is not necessary to send it to the recovering devices, but it can be exhausted into the air through the independent exhaust pipe 15.
  • valve 16 When the solvent in the solvent reservoir 3 is evaporated, the valve 16 is closed and the valve 17 is opened. Accordingly, the solvent vapor passing through the plugs is not delivered to the pipe 15 but is delivered to the cooler 13. When the evaporation of the solvent is interrupted and air is charged into the chamber, valve 17 is closed and the valve 16 is opened.
  • a device for treating cigarette filter plugs containing powder adhesive and wrapped with paper comprising an enclosed chamber, means for stacking said filter plugs in said chamber, a solvent reservoir provided in the bottom of said chamber, an outlet through the top of said chamber, heating means in the bottom of said chamber for vaporizing saidsolvent so as to cause said vaporized solvent to pass from said reservoir to the outlet of said chamber through said filter plugs thereby dissolving the powder adhesive in said plugs, a temperature regulating means surrounding said chamber and means located at the bottom of said chamber for blowing air into said chamber below said filter plugs to'pass the vaporized solvent out of said chamber to said outlet and set said adhesive.
  • a device as defined in claim 1 including a condenser connected to the outlet of said chamber for condensing said solvent vapor emitted through said outlet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
US356856A 1963-04-12 1964-04-02 Device for treating cigarette filter plugs Expired - Lifetime US3358640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1917863 1963-04-12

Publications (1)

Publication Number Publication Date
US3358640A true US3358640A (en) 1967-12-19

Family

ID=11992079

Family Applications (1)

Application Number Title Priority Date Filing Date
US356856A Expired - Lifetime US3358640A (en) 1963-04-12 1964-04-02 Device for treating cigarette filter plugs

Country Status (5)

Country Link
US (1) US3358640A (fr)
BE (1) BE646491A (fr)
CH (1) CH416418A (fr)
DE (1) DE1296560B (fr)
GB (1) GB1056249A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115279961A (zh) * 2020-03-30 2022-11-01 科德宝高性能材料集团 具有可生物降解的粘合剂的沥青膜

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US942150A (en) * 1909-07-01 1909-12-07 Harry D Tiemann Process of rapidly drying timber and other moisture-bearing substances.
US1059820A (en) * 1912-04-08 1913-04-22 Eduard Rudolph Besemfelder Method of drying damp materials.
US2009232A (en) * 1934-07-24 1935-07-23 John M Hood Apparatus for applying waxes, rosins, oils, etc., to textile fibers, yarns, or fabrics
US2273039A (en) * 1940-03-19 1942-02-17 Monie S Hudson Treating wood and wood products
US2293453A (en) * 1939-02-24 1942-08-18 Gen Electric Dehydrating treatment
US2535087A (en) * 1940-06-06 1950-12-26 Munters Carl Georg Apparatus for impregnating heat insulating material
US2702433A (en) * 1954-06-14 1955-02-22 Marvin D Cohen Process for removing synthetic cleaning fluid from filter muck

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB730700A (en) * 1953-06-29 1955-05-25 Victor Emmanuel Yarsley Improvements in and relating to the production of filter elements for filter tip cigarettes
US3039908A (en) * 1953-07-13 1962-06-19 Hollingsworth & Vose Co Method of making a tobacco smoke filter
CH339854A (de) * 1956-01-27 1959-07-15 Mueller Paul A Verfahren zur Herstellung eines Filterstranges, der ein durch Bindemittel verfestigtes Filtermaterial enthält, insbesondere für Zigarettenfilter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US942150A (en) * 1909-07-01 1909-12-07 Harry D Tiemann Process of rapidly drying timber and other moisture-bearing substances.
US1059820A (en) * 1912-04-08 1913-04-22 Eduard Rudolph Besemfelder Method of drying damp materials.
US2009232A (en) * 1934-07-24 1935-07-23 John M Hood Apparatus for applying waxes, rosins, oils, etc., to textile fibers, yarns, or fabrics
US2293453A (en) * 1939-02-24 1942-08-18 Gen Electric Dehydrating treatment
US2273039A (en) * 1940-03-19 1942-02-17 Monie S Hudson Treating wood and wood products
US2535087A (en) * 1940-06-06 1950-12-26 Munters Carl Georg Apparatus for impregnating heat insulating material
US2702433A (en) * 1954-06-14 1955-02-22 Marvin D Cohen Process for removing synthetic cleaning fluid from filter muck

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115279961A (zh) * 2020-03-30 2022-11-01 科德宝高性能材料集团 具有可生物降解的粘合剂的沥青膜

Also Published As

Publication number Publication date
DE1296560B (de) 1969-05-29
BE646491A (fr) 1964-07-31
GB1056249A (en) 1967-01-25
CH416418A (fr) 1966-06-30

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