EP0025007B1 - Applicateur d'adhésif et procédé pour relier des cigarettes avec des filtres et applications analogues - Google Patents

Applicateur d'adhésif et procédé pour relier des cigarettes avec des filtres et applications analogues Download PDF

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Publication number
EP0025007B1
EP0025007B1 EP19800730059 EP80730059A EP0025007B1 EP 0025007 B1 EP0025007 B1 EP 0025007B1 EP 19800730059 EP19800730059 EP 19800730059 EP 80730059 A EP80730059 A EP 80730059A EP 0025007 B1 EP0025007 B1 EP 0025007B1
Authority
EP
European Patent Office
Prior art keywords
web
adhesive
orifices
beads
plane
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
Application number
EP19800730059
Other languages
German (de)
English (en)
Other versions
EP0025007A1 (fr
Inventor
Donald B. Mc Intyre
Frederic S. Mc Intyre
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.)
Acumeter Laboratories Inc
Original Assignee
Acumeter Laboratories Inc
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 Acumeter Laboratories Inc filed Critical Acumeter Laboratories Inc
Publication of EP0025007A1 publication Critical patent/EP0025007A1/fr
Application granted granted Critical
Publication of EP0025007B1 publication Critical patent/EP0025007B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0291—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work the material being discharged on the work through discrete orifices as discrete droplets, beads or strips that coalesce on the work or are spread on the work so as to form a continuous coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated

Definitions

  • the present invention relates to liquid adhesive applicators, being more particularly concerned with such applicators, and methods of using the same, for providing continuous adhesive coatings on items such as cigarette filter tip papers and the like, with the aid of multiple, small nozzles through which suitable adhesive materials are pumped simultaneously to generate a plurality of parallel fine beads of adhesive upon a continuous web of such papers or the like, with the invention providing for the controlled merging of such beads into a required full, uniform and continuous coating, with control of the degree of merging when desired.
  • a fluid adhesive applicator having, in combination, a plurality of fine-orifice closely spaced nozzles disposed in a plane extending transversely of a predetermined region; pumping means for simultaneously supplying the nozzles with the fluid adhesive; means for drawing a web of material-to-be-coated longitudinally through said predetermined region on juxtaposition to the orifices of said nozzles simultaneously to receive therefrom a corresponding plurality of closely spaced beads of adhesive upon the web and extending transversely across said web; edge means formed by a recess extending inward from said plane and web a short distance longitudinally beyond said orifices; and means for directing the drawing of said web to shear the web against said edge means at an acute angle to said plane.
  • the object of the invention consists of providing a new and improved adhesive applicator of the multi-nozzle type, and method of operating the same, to effect continuous coating for such applications as cigarette-to-filter adhesion.
  • the advantage of this invention consists of providing such a novel applicator and method with positive control over the degree of merger of the multiple beads of adhesive extruded from the plurality of adjacent nozzle orifices. Preferred operating steps and controls, and best mode constructional details are hereinafter presented.
  • Fig. 1 is a combined schematic and isometric view of a preferred embodiment of the invention, shown applied to the illustrative application of adhesive layers upon cigarette filter tipping paper and the like.
  • Fig. 2 is a view, upon an expanded scale, partly longitudinally sectionalized, of the nozzle extruding and shearing section A of Fig. 1;
  • Fig. 3 is a view similar to Fig. 2 of a modified nozzle extruding and shearing section A'.
  • fluid adhesive from a reservoir R is fed along a supply line 1 into a positive displacement gear metering pump 3, driven synchronously by a direct machine drive, schematically illustrated at 5, which also drives the paper or other web 5, such as the exemplary cigarette filter tipping paper web.
  • Suitable metering pumps of this character are described in said Letters Patent and elsewhere, and include for example the Acumeter (Newton Lower Falls, Massachusetts) Models 1 BUP2, 1 BUP4 and 1 BUP24 of the assignee of the present invention. The latter model will pump 0.6cc per 1/2 revolution input per nozzle discharge.
  • Appropriate cold adhesives for normal cigarette filter tipping applications and the like are polyvinyl acetate resin emulsions,- such as HR Fuller No.
  • the metering pump 3 therefor is shown applying the fluid to a novel dispensing head 7, having a transverse line of a plurality of relatively small coplanar nozzle discharge or extrusion orifices 7' through which the adhesive is simultaneously extruded as a corresponding plurality of beads in response to the metered pumping.
  • the return line from the pump 3 to the reservoir R is shown at 1'.
  • the transverse line of orifices 7' is each preceded by a converging extrusion nozzle section 7" within the head 7, is oriented substantially parallel or at a slight angle to the paper or other web 5, drawn longitudinally upwardly past the same between web support bars 9.
  • the bars 9 may be adjustable, as illustrated, to retract at machine shut-down to bring the web away from the nozzle head 7.
  • the extrusion head or nozzle 7 is provided within a short distance beyond the plane of the orifices 7' upward in the direction of web travel, say within 0,8 mm or so, with an L-shaped recess 11 defining a shearing edge 11' over which the juxtaposed web 5 is drawn under tension at an acute angle "a" with respect to the direction of the web travel at the predetermined region of the orifice 7' in order to effect a positively directed shearing action upon the transverse line of adhesive beads 2, Fig. 2, extruded upon the web 5 at the orifices 7'.
  • the coated web 5 continues over roll 13 to and over a vacuum drum 15 where the coated paper is cut into sections, schematically shown at 5', by a rotary knife cylinder 17.
  • the cut sections 5' of coated paper which are to serve as the filter tip paper, are carried down to an adjacent cigarette-carrying drum 19 such that the cut filter paper section 5' will wrap around the two butted filters F and F' of the double cigarettes 4-4', the same being slit at 6 by an intermediate cutting knife 21 to provide a severed pair of cigarettes, as described in our US-A-4,090,520 and as is well-known, each having filter tip paper applied to its filter and secured thereto by the adhesive coatings of the invention.
  • the plurality of transversely aligned orifices 7' may be separated into two groups so that the coating C comprises two spaced coated portions, with the spacing centrally disposed to align with the cutter 21.
  • line speeds of the order of 80 meters per minute have been obtained with two sets of adjacent nozzle orifices 7', a dozen orifices in each set and each of the order of 2 mm orifice diameter, spaced about 2 mm apart, and with tension over the shearing edge 11', at an acute angle a of about 25 degrees, of the order of 0,36 kg per cm of web width, using cigarette filter paper of the simulated cork paper type, about 0.05 mm thick.
  • the family of polyvinyl acetate adhesives used have an approximate elongation ratio of 1000 to 2000%, thus permitting the spreading of the adhesive to a very finite and controlled coating film thickness.
  • a further feature of this invention resides in the obviating of the problem of adjusting the adhesive properties to enable a desired compromise between tack and adhesion in view of the very different properties of the dissimilar material multi-elements of the cigarette and, for example, the acetate adhesive.
  • the invention enables any adhesive property variation to be effected for any desired result in view of the inherent nature of the extrusion and shearing process thereof.

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Claims (8)

1. Applicateur d'adhésif fluide comportant, en combinaison, un pluralité d'ajutages faiblement espacés, à orifice fin, disposés dans un plan s'étendant transversalement par rapport à une région prédéterminée; des moyens de pompage (3) pour alimenter simultanément les ajutages en adhésif fluide; des moyens pour tirer longitudinalement une bande (5) de matériau à recouvrir à travers ladite région prédéterminée simultanément en juxtaposition avec les orifices (7') desdits ajutages pour en recevoir une pluralité correspondante de cordons d'adhésif (2) faiblement espacés sur la bande (5) et s'étendant transversalement en travers de ladite bande; des moyens tranchants formés par une cavité (11) s'étendant vers l'intérieur à partir dudit plan et de la bande (5) sur une courte distance longitudinale devant lesdits orifices (7'); et des moyens pour diriger la traction de ladite bande (5) de manière à cisailler l'adhésif contre lesdits moyens tranchants suivant un angle aigu (a) par rapport audit plan, caractérisé en ce que lesdits moyens de direction et ledit angle sont réglés par rapport au nombre et à la finesse desdits orifices (7') pour faire en sorte que lesdits cordons d'adhésif (2) parallèles fusionnent en un revêtement (C) complet, uniforme, continu s'étendant transversalement en travers de ladite bande.
2. Applicateur d'adhésif fluide comme revendiqué dans la revendication 1 et dans lequel lesdits ajutages sont disposés dans un boîtier comportant des petits orifices (7') faiblement espacés à travers une partie du boîtier sortant au niveau dudit plan transversal, et que lesdits moyens tranchants comportent une cavité (11) en forme de L dans la partie du boîtier s'étendant longitudinalement vers l'intérieur au-delà dudit plan, sensiblement parallèlement auxdits orifices.
3. Applicateur d'adhésif fluide comme revendiqué dans la revendication 1 et dans lequel les orifices (7') desdits ajutages au niveau dudit plan sont sensiblement en contact avec la bande (5) lorsqu'elle est tirée devant sensiblement parallèlement audit plan, la bande étant tirée ensuite vers le haut suivant un angle aigu (a) sur lesdits moyens tranchants pour effectuer le cisaillement de l'adhésif qui resulte dans le fusionnement desdits cordons d'adhésif (2) pour former ledit revêtement continu (C).
4. Applicateur d'adhésif fluide comme revendiqué dans la revendication 1 et dans lequel les orifices (7') desdits ajutages au niveau dudit plan ne sont pas en contact avec la bande (5) lorsqu'elle est tirée devant, la bande étant tirée sur lesdits moyens tranchants suivant un angle aigu (a) par rapport audit plan pour effectuer le cisaillement de l'adhésif qui résulte dans le fusionnement desdits cordons d'adhésif (2) pour former ledit revêtement continu (C).
5. Applicateur d'adhésif fluide comme revendiqué suivant la revendication 1 et dans lequel des moyens sont prévus pour régler au moins la tension de la bande contre ladite arête ou ledit angle aigu (a) pour commander le fusionnement des cordons d'adhésif (2) pour former ledit revêtement uniforme (C).
6. Applicateur d'adhésif fluide comme revendiqué dans la revendication 1 et dans lequel ladite pluralité d'orifices (7') d'ajutages est divisée en deux groups espacés transversalement l'un de l'autre pour définir un espace sur la bande (5) entre les paires résultantes de revêtements d'adhésif formées par lesdits groupes.
7. Applicateur d'adhésif fluide comme revendiqué dans la revendication 6 et dans lequel ladite bande est constituée par du papier de filtre de cigarette, et des moyens sont prévus pour couper celle-ci en morceaux et envelopper les morceaux autour de filtres de cigarette aboutés (F, F'), le revêtement de chacune des paires de revêtements étant fixé sur lesdits filtres.
8. Procédé d'application d'adhésif fluide qui consiste à déposer au niveau d'une région prédéterminée une pluralité de cordons parallèles en ligne, faiblement espacés (2), de cet adhésif, transversalement sur une bande (5) alors que la bande est tirée longitudinalement à travers ladite région; à dévier la bande revêtue de cordons parallèles suivant un angle aigu (a) sur une arête (11) située juste au-delà de la région de dépôt des cordons, caractérisé en ce qu'il consiste à régler les dimensions des cordons (2) et le degré de déviation vers le haut par rapport à la vitesse de traction de la bande (5) pour cisailler les cordons au niveau de ladite arête (11) et de faire fusionner ceux-ci en un revêtement d'adhésif complet, continu, uniforme (C) transversalement sur ladite bande.
EP19800730059 1979-08-27 1980-08-25 Applicateur d'adhésif et procédé pour relier des cigarettes avec des filtres et applications analogues Expired EP0025007B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6997279A 1979-08-27 1979-08-27
US69972 1979-08-27

Publications (2)

Publication Number Publication Date
EP0025007A1 EP0025007A1 (fr) 1981-03-11
EP0025007B1 true EP0025007B1 (fr) 1982-11-03

Family

ID=22092337

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800730059 Expired EP0025007B1 (fr) 1979-08-27 1980-08-25 Applicateur d'adhésif et procédé pour relier des cigarettes avec des filtres et applications analogues

Country Status (6)

Country Link
EP (1) EP0025007B1 (fr)
JP (1) JPS6034909B2 (fr)
DE (1) DE3061039D1 (fr)
GB (1) GB2057304B (fr)
HK (1) HK25786A (fr)
SG (1) SG79485G (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035091A1 (de) * 1990-11-05 1992-05-07 Pagendarm Gmbh Auftragsvorrichtung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104666A (ja) * 1981-12-16 1983-06-22 Fuji Photo Film Co Ltd 塗布装置
JPS58202075A (ja) * 1982-05-19 1983-11-25 Konishiroku Photo Ind Co Ltd 塗布方法
JPS6276010U (fr) * 1985-10-31 1987-05-15
US4746545A (en) * 1985-12-16 1988-05-24 Acumeter Laboratories, Inc. Fluid coating and web-handling method and apparatus particularly adapted for low-tension and/or unevenly thick webs
FI105533B (fi) * 1992-10-26 2000-09-15 Valmet Paper Machinery Inc Suihkupäällystyslaitteisto ja -menetelmä
CA2133266A1 (fr) * 1993-10-29 1995-04-30 Hans-Jurgen Meissner Matrice a enduire a fente
EP0926749A3 (fr) * 1997-11-18 2001-02-28 Matsushita Electric Industrial Co., Ltd. Dispositif et procédé de revêtement
CN103774501A (zh) * 2014-01-22 2014-05-07 陈毕峰 一种烟用烫金水松纸及其制作工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1305023A (fr) * 1969-06-03 1973-01-31
GB1373032A (en) * 1971-02-09 1974-11-06 Molins Ltd Methods and apparatus for the manufacture of mouth-piece cigarettes
FR2206663A5 (en) * 1972-11-14 1974-06-07 Extel Corp Ventilated filter-tip for cigarettes - for reducing harmful prods by dilution of smoke
GB1497661A (en) * 1974-11-02 1978-01-12 Molins Ltd Devices for applying adhesives to a moving web

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4035091A1 (de) * 1990-11-05 1992-05-07 Pagendarm Gmbh Auftragsvorrichtung

Also Published As

Publication number Publication date
SG79485G (en) 1988-05-20
GB2057304A (en) 1981-04-01
DE3061039D1 (en) 1982-12-09
JPS5637067A (en) 1981-04-10
GB2057304B (en) 1983-09-07
HK25786A (en) 1986-04-18
EP0025007A1 (fr) 1981-03-11
JPS6034909B2 (ja) 1985-08-12

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