CN86101153A - Adhesive application method for manufacturing cigarette filter elements - Google Patents
Adhesive application method for manufacturing cigarette filter elements Download PDFInfo
- Publication number
- CN86101153A CN86101153A CN198686101153A CN86101153A CN86101153A CN 86101153 A CN86101153 A CN 86101153A CN 198686101153 A CN198686101153 A CN 198686101153A CN 86101153 A CN86101153 A CN 86101153A CN 86101153 A CN86101153 A CN 86101153A
- Authority
- CN
- China
- Prior art keywords
- filter
- filter element
- core
- filter core
- binding material
- 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.)
- Pending
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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
- A24D3/02—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
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- Nonwoven Fabrics (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Adhesive application method for manufacturing cigarette filter elements, be a kind of bonding material formulation is applied on the paper packaging material and allows strike through of adhesive material to not on the rod-shaped fiber core of bonding in winding place of filter bar maker, this core is formed by containing polyolefinic fibre bundle, utilize packaging material to infiltrate the degree of filtering bar for control binding material comprehensively, and the robustness of cigarette filter rod, toughness and suction character are given security as a kind of medium of print through dressing.
Description
The invention relates to and a kind ofly will contain polyacrylic fiber and seal to make the method for cigarette filter elements with shell.
Many patents, particularly the U.S. 4,366,826, described the fiber base filter element in order to particle matter and tar in the filtering cigarette cigarette in number patent, especially the filter element of being made by acetate fiber or the curling fabric bundle of TPO (as polypropylene).It is to use well-known process that these fibre bundles are made filtering rod, as be disclosed in and state United States Patent (USP) 4,366,826 and United States Patent (USP) 3393685 in, its technology comprises having 4000 to 60000 to curl and fibre bundle that pine is dredged utilizes air or steam to infeed a hole machine approximately the bulk.The binding agent component then prints or is ejected on the fibre bundle of expansion, and by root root fiber absorb make between adjacent fiber together adhering to each other.
Fibre bundle imports in the shaping district or harness of filter bar manufacturing equipment then, is configured as a continuous garden cylindricality there and filters " core ", when can cooling off in case of necessity or dry, and can choose wantonly with the in addition winding of core treated such as paper or non-woven material.Some occasion.
As being disclosed in the U.S. 3,144,025, the fiber in number patent has that lower fusing point and melting equipment and cooling device combine and as adhesive means.
In all these traditional methods, the amount of binding agent or low-melting fiber and the arrangement of fiber (being the fiber and the orientation of curling etc.) have determined the rigidity (hardness) and the toughness of the filter element of gained to a great extent.Because binding agent is diffused on the fiber more or less, caused air flue or reducing of cavity volume and influenced perfectly " suction ", also influenced the toughness that is associated with the soft fibre that do not bond.
At United States Patent (USP) 4,366, do not notice in 826 and use acetate fiber and some shortcoming of binder formula of use with it routinely.For instance, acetate fiber is relatively more crisp than containing polyacrylic synthetic fibers, and this certainly will cause before fibre bundle imports the shaping harness of standard filtering rod maker putting on amount of tension on the loose fibre bundle and the restriction on the amount of curl.
Be used in this article containing of cigarette filter elements polyacrylic fibre bundle or slice be commonly referred to as " polypropylene fibre ".Polypropylene fibre has the thinner advantage of silk, can have more effective filtering property usually, but it also has shortcoming.Pine is dredged or the floating polypropylene fibre Shu Buyi that looses is soaked into by most of acetate fiber binder formulas, can not have lubrication assistant characteristic required in traditional high rate filter manufacture method, unless excessive use, but filter efficiency and other desirable character will be affected adversely.
In fact, a known filtering rod that the polyolefine fiber bundle that suitable firmness arranged is made is because being inversely proportional to and may influencing desirable easy absorption in the smoking between pressure drop (△ P) or " suction " and " hardness number " (%F) in these conventional methods.(the mensuration usefulness of pressure drop and hardness number be Filtrona hardness and toughness and pressure fall-off test instrument, V series, Britain Abbey Manufacturing Fstates, Wembly Middlesex makes)
Make the method for cigarette filter elements according to the present invention, contain to make in the harness that polypropylene fibre bundle or slice can infeed filter bar maker and be shaped to fibre core, before being cut into filter element with paper or non-woven material winding, it is characterized in that filament in the filter core before winding without binding material, but can be applied on the treated with the binding material that polypropylene soaks into, by winding, thereby the print through immediately of said binding material is impregnated its skin to crossing filter core, forms one and encloses about 1% to 20% the ring section of the total cross section of filter element.
The ring section of impregnating filter core preferably accounts for 1% to 10% of the total cross section of filter element.
The amount that is applied to the binding material on the unit length treated preferably this length by the winding fiber heavy 10% to 60%.
According to the present invention, its hardness number of cigarette filter rod of making by the said technology of the present invention about 80%, is determined by following formula at least:
F＝ (D-△D)/(D) ×100%
Wherein F is defined as hardness number, and D is that the diameter of filter core is represented with millimeter, and △ D is skew or the reduction volume that the filter element wrapped stands its diameter of effect in 15 seconds of 300 gram load, represents with a few percent millimeter.
Like that for what be fit to most of users cigarette filter rod of the present invention has hardness number preferably about more than 85%, optimal hardness is about 90% but should not surpass 94%.
The present invention makes in the technology of cigarette filter rod, being coated with to spill in fact of binding material (can be used as a kind of plasticiser and a kind of adhesive) carried out simultaneously with the core body packaging step, thereby the increase that fiber rod is not present in the surface of bar because of binding agent or plasticiser by the operation of a machine or passes to the frictional force that machine surface causes is hindered.The most important thing is that it is to finish on the flat surfaces of packaging material that being coated with of control spilt the print through process, this has caused a fabulous control that viscose glue is infiltered the uniformity and the quality of filter element, has stayed a core that fiber does not bond as yet in bond regions.
On numeral, be exactly soaking into binding material to the degree polypropylene of filter core, print through infiltrates wherein degree, total impregnate 1% to 20% the amount that accounts for the filter core cross section into the filter core skin, can be similar to and represent with following formula:
A= (d(2R-d))/(R
2) ×100%
Wherein A is defined as the annular cross section area, represents with the percentage that accounts for total cross-sectional area, and the mean depth d that binding agent plasticiser component is infiltrated Bao Xin represents with micron; R is that the outer radius (supposition filter bar is the garden tee section basically) of bag core or filter element is represented with millimeter.
" easily take out " therefrom by cigarette filter bar of the present invention, this is because filter element or the filter core wrapped have one to account for total cross-sectional area 99% to 80%, and the best is 99% to 90% the not soft fibre core of bonding, and does not lose its solidness or hardness.
Obviously the bending coefficient of binding agent/plasticiser component is low more concerning the technology practician, it is just big more to wish that then hardness number drops in 80% to 94% scope desired annulus area " A " value, and suitable and preferable " A " value requires the binding agent porous to go into Bao Xin to reach 150 to 400 microns.
Crossed polypropylene fibre bundle or the slice that filter core contains about 10% to 100% weight by technology of the present invention by the polypropylene fibre of winding, polypropylene fibre as 100% (the best), the perhaps mixture (also preferable) of polypropylene and other polyolefin (as polyethylene) fiber, the perhaps mixture of polypropylene and polyvinylidene chloride, acetate fiber, artificial silk, nylon, polystyrene or paper.The proportioning of the fiber that these are suitable is at United States Patent (USP) 3,393, describes to some extent in 685.
Any traditional, commercially availabie core wrapping paper all can be used as bundle core packaging material as the pore-free wrapping paper of selling with the commercial trade mark 646 with the Ecusta trade mark registration, and in fact packaging material are that medium as print through spreading machine uses in the present invention.Obviously a kind of concerning the technology practician have the adhesive-bonded fabric film of enough wear resistences, hot strength and surface tackiness also can pack as filter core.
For example, suitable bundle wrapping paper requires weight range between about 7.5 to 23 gram/square metre (30 to 90 gram/square yards), and corresponding its weight range of nonwoven bundle packaging material can be at about 2.50 to 10.2 gram/square metre (10 to 40 gram/square yards).The latter can produce with wet method or dry method business process, utilize hot adhesion, spun casting bonding, pin hole punching press or other known method, as long as (if not being the words of overpackaging) do not have spread effect when tongue, lip contact with this material, otherwise can not adopt.
Make cigarette filter rod and technical process further is depicted among the figure by the present invention:
Fig. 1 represent be according to the present invention for binding agent/plasticiser component periphery print through to filter core, and the side view of a standard cigarette filtering rod maker that is provided with;
The vertical section cutaway view of Fig. 2 periphery bonding that has been of the having amplified demonstration of crossing and bundle fiber filter element packing, that component was handled through adhesive treatment;
Fig. 3 is the side view of the improved of Fig. 1, on wherein binding agent/plasticiser prescription is sprayed onto core packaging material as print through dressing medium from a shower nozzle before entering winding place (not shown).
The fibre bundle of (10) expression among Fig. 1 or the continuous belt of slice, from a reel or bale packing (11) feed, the harness inlet (15) and the harness (14) that enter trumpet type by feeding and location cylinder (12), guide shaft (17), they are attached to standard cigarette and filter mark maker (5), it includes (a) former, (b) packaging facilities, (c) cooling or drying equipment and (d) at the filter bar of harness workshop section (6) internal cutting off gained.The filter core packaging material of supplying with from feeding reel (8) (7) have dual function, and the one, as the bundle treated; The 2nd, as the medium that transmits binding agent plasticiser (24) component, send into packing place (not shown) in the harness section (6), winding (not shown) to the core bundle with binding agent.The transmission of binding agent is to be contacted with one or more roller bearings that wet binding agent and begun to carry out by applicator medium (7), moistening roller bearing (19) with heating is represented, it can contact with the binding material (24) in leaving groove (20) in, can heat or not heat and (depend on that it is hot melt or liquid, half suspended substance or solution), packing/dressing medium (7) and binding agent (24) are delivered on the continuous harness conveyer belt (9) by guide shaft (13), and this band send the medium that coats to enter harness section (6).
Be applied on the packaging material and for the amount of its binding agent that carries (24) and be applied to the wettability that binder amount on the Shu Xin of winding place depends on fibre bundle to a great extent, the wettability on printing and dyeing roller bearings (19) surface, the viscosity of binding agent component itself and imbibition characteristic and the layout situation of discussing below also depend on the size of pressure and nozzle among Fig. 3.
Mention above, traditional cooling or the dry equipment (not shown) of handling fibre core, and the fibre core that cutting is wrapped becomes the equipment (not shown) of filter element to be installed in the below of winding place usually.The filter element that cuts (16) is delivered to chute (18) and vanning in container (23) then.
Fig. 2 be bonding good with the longitudinal sectional view good rod fibre bundle filtration element (1) of winding.This element has a fibre core (2) without bonding, periphery bond regions (3) is made of the binding agent/plasticiser component (3c) of fiber (3B) and sclerosis, and the binding agent that has hardened is arranged in and has formed a shell frame between the fiber it is outside then bonding for restrainting packaging material (7B).
Fig. 3 is the improvement of Fig. 1, wherein moistening roller bearing (19) and binding agent storage tank (20), change to be a shower nozzle (21A) provide hot melt by stuff-spraying pipe (22A) from a source (not shown) or other suitable binding agent/plasticiser component to print through dressing medium (7A).Same component part has used same Arabic numerals in two figure for the purpose of the unification.
Remove the imbibition characteristic of relevant polypropylene fibre, conventional fusion outside some characteristics that sclerosis or other are known for the technology practician, is applicable to that binding agent of the present invention/plasticiser fills a prescription unrestrictedly, and the binding agent of known following general category is suitable especially:
I. the polybutene of nonionic or anionic/styryl rubber, the suspension form that is about 95-65/55-35 with weight ratio, or the copolymer of ethylene/vinyl acetate base and rosin ester, such rosin ester can fetch in Gary Fu Niya Associated Oil Company, and trade mark is AMSCO-RES
TM, particularly AMSCO-RES-4125 also has corresponding hot melt such as AMSCO-MELT
TM204;
II. butyl acrylate or contain butyl methacrylate and the polymer of hydrocarbon resin additive, it is Rhoplex that such additive can fetch its trade mark from ROhm and Haas company
R, particularly Rhoplex 621,631 and P-376;
III. AMS and hydrocarbon resinoid copolymer, this resinoid can fetch from god of unusual strength limited company, and its trade mark is special KRISTALEX
RParticularly KRISTALEX3100 comprises aqueous dispersion or suspension.
Other is applicable to that binder formula of the present invention is the ethylene/vinyl acetate base co-polymer, and can fetch its trade mark from Eastman Kodak company is Eastobond
RComprise that " A " series is as Eastobond A-381, prescription can be expressed as " X " and reach " Y " two kinds of compositions, (X) weight ratio to (Y) is about 5-30/95-70, wherein (X) composition is defined as rosin ester modifier, it exists with the form of suspension of animi resin solid, and it 45% is hydrotreatment to 100% that the some in the resin is preferably had an appointment.
Modified resin can contain the rosin ester of about 5 to 25 weight percent in the prescription partly of above back, and the concentration that contains rosin acid in the ester can be up to about 5%, and the softening point of ester is about 60 ℃ to 95 ℃, but its mean molecule quantity is no more than about 2000." X " composition can be purchased the suspension that solid or some occasion can be buied solid product, and its trade mark is Foral
R*85 or 105(glycerine and pentaerythritol ester, highly hydrogenated resin, mean molecule quantity are 600 to 1000); Hercolyn D
R(Foral resin methyl ester); Piccolyte
RA115 resin (polyterpene); Staybelite Ester
RThe glyceride of 10(Foral resin, mean molecule quantity 600 to 1000); Pentalyn
RH Foral resin, (pentaerythritol ester mean molecule quantity 600 to 1000), or Piccotex
RResin (copolymer of methyl styrene and vinyltoluene).
Corresponding (Y) composition can be made of following several materials in these prescriptions: a) the independent polymerization of monomer polymerization such as vinylacetate or with a poly monomer such as ethene mixing copolymerization: b) acrylic acid, methacrylic acid, ethyl acrylate, butyl acrylate, methyl methacrylate or the like monomer polymerization or they and poly monomer such as styrene, ethene, propylene, the mixing copolymerization of butylene and congener.More than Shi Yi copolymer has narration maybe can buy from market in BP № 1,514,217, its trade mark such as Vinac
ROr Airflex the homopolymers of 881(vinylacetate),
RThe copolymer of 405(90 part vinylacetate/10 parts of ethene).
Being suitable for the practical total number of used agglomerate fibre bundle of the present invention or slice can be 6000 to 60,000 variation, and can spray with fluid from single creel or a plurality of creel and supply with.But preferred plan is fibre bundle preferably is that do not twist with the fingers and state no texture basically.
The fluid injection is available for the purpose of the present invention and can designs routinely.Find that also it is useful that conduit enters harness to the control fibre bundle, as the horn mouth among Fig. 1 (15).Filament is given highly textured, and if the turbulent flow around the jet do not add conduit control at this place, then may cause filament to lose structural integrity and undesirably entanglement.
Following example further illustrates the present invention, and composition in the example and percentage number average are by weight unless otherwise prescribed.
The example I
Two continuous per share be 4.5 (dpf), have that the polypropylene fibre bundle in one " Y " type cross section is extended to one about 30 to 36 centimetres wide (12 to 14 English inch) thin with the harness of going up and being dragged standard Guo Lv Rod maker through improve the general fashion operation by Fig. 3 to form fibre filtering core, this core with one heavily be 29.0 the gram/square metre the paper packing material winding and the bonding, sprayed six evenly spaced paralleling binding agent lines by slightly open many mouthfuls of shower nozzles on this wrapping paper, be expressed as " percentage that adds " based on the binder amount on this spray printing of increase of filter core weight.Used binder formula is that those above-mentioned commercially available trade marks are (a) Rhoplex 631, (b) Phoplex P376, (c) KRISTALEX
R3100
*Reach (d) AMSCO-RES
R4125.Its length of test-filtration element that coats, spools and cut is 90 millimeters, and girth is 24.35 millimeters, tests with the Filtrona cigarette tester of standard then, and does microscopic examination to estimate the approximate depth " d " of binding material infiltration.The result is reported in the sample T-1 of following table in T-7.
Reference examples I-B
Repeat with the fibre bundle that same per share 4.5 (dpf) launch by routine I condition, but on fibre bundle, do not add any binding agent.Add a spot of glue on the packaging material to fix it.This result of the test is reported in the sample C-IA-hurdle of showing in the I.
Errata
CPCH 866034
Claims (7)
1, a kind of handle contain polypropylene fibre bundle or slice in the harness of advancing to filter the bar maker and before cutting into filter element, be shaped to be surrounded by paper or non-woven material filter core in order to make the method for cigarette filter elements, the fiber that it is characterized by in the filter core was not add binding material before winding, polypropylene soaks into binding material and is applied to above the packaging material, arrive filter core in winding said binding material print through immediately simultaneously, thereby binding material impregnates the skin of filter core, forms one and encloses about 1% to 20% the ring section of filter element total cross section.
2, according to the technology of the said manufacturing filter element of claim 1, it further is characterized as the ring section of impregnating filter core and accounts for 1% to 10% of filter element total cross section.
3, according to the technology of claim 1 or 2 said manufacturing filter elements, it further is characterized as the amount that is applied to the binding material on the packaging material and accounts for 10% to 60% of institute's packet length filter core weight.
4, the cigarette filter elements of making according to claim 1,2 or 3 said methods, the hardness number that it is characterized by filter element is at least about 80%, can be determined by following formula:
F＝ (D-△D)/(D) ×100%
Wherein F is a hardness number, and D is that the diameter of filter element is represented with millimeter, △ D be the filter element wrapped stand 300 gram load under 15 seconds its diameter depart from or reduction is represented with a few percent millimeter.
5, filter element according to claim 4 is characterized by its hardness number and is higher than about 85% but be no more than about 94%.
6, according to claim 4 or 5 described filter elements, it further is characterized as polypropylene fibre in the filter core in fact fully by polyolefine fiber Shu Zucheng.
7, filter element according to claim 6, it further is characterized as the polyolefine fiber bundle and is made up of polypropylene fully.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69709585A | 1985-01-31 | 1985-01-31 | |
| US697,095 | 1985-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86101153A true CN86101153A (en) | 1986-09-24 |
Family
ID=24799770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198686101153A Pending CN86101153A (en) | 1985-01-31 | 1986-01-30 | Adhesive application method for manufacturing cigarette filter elements |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS61247368A (en) |
| CN (1) | CN86101153A (en) |
| BR (1) | BR8600412A (en) |
| CA (1) | CA1261227A (en) |
| DE (1) | DE3602997A1 (en) |
| FR (1) | FR2576757B1 (en) |
| GB (1) | GB2170391B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112021655A (en) * | 2013-07-16 | 2020-12-04 | 菲利普莫里斯生产公司 | Radially robust smoking article filter |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076295A (en) * | 1989-09-29 | 1991-12-31 | R. J. Reynolds Tobacco Company | Cigarette filter |
| US5105834A (en) * | 1989-12-18 | 1992-04-21 | R.J. Reynolds Tobacco Company | Cigarette and cigarette filter element therefor |
| US5246017A (en) * | 1990-11-06 | 1993-09-21 | R. J. Reynolds Tobacco Company | Cigarette and cigarette filter element therefor |
| DE102011005898B4 (en) * | 2011-03-22 | 2013-02-07 | Hauni Maschinenbau Ag | A method of applying glue to a filter wrapping paper strip in a filter rod machine, and to the use of a glue application device for such a method |
| EP2901871A1 (en) * | 2014-01-31 | 2015-08-05 | Philip Morris Products S.A. | Multi-segment filter tube |
| EA032898B1 (en) * | 2014-07-22 | 2019-07-31 | Джт Интернэшнл С.А. | Method and apparatus for forming a filter rod |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3079978A (en) * | 1958-09-22 | 1963-03-05 | Eastman Kodak Co | Apparatus for manufacturing filters |
| FR1264163A (en) * | 1959-07-02 | 1961-06-19 | Eastman Kodak Co | New filter for tobacco smoke and method and apparatus for the manufacture of this filter |
| GB1110785A (en) * | 1964-08-27 | 1968-04-24 | Courtaulds Ltd | Filter elements |
| US3361137A (en) * | 1965-09-27 | 1968-01-02 | Celanese Corp | Paperless cigarette filter |
-
1986
- 1986-01-28 GB GB08601984A patent/GB2170391B/en not_active Expired
- 1986-01-30 CA CA000500701A patent/CA1261227A/en not_active Expired
- 1986-01-30 FR FR8601652A patent/FR2576757B1/en not_active Expired
- 1986-01-30 CN CN198686101153A patent/CN86101153A/en active Pending
- 1986-01-31 DE DE19863602997 patent/DE3602997A1/en not_active Withdrawn
- 1986-01-31 BR BR8600412A patent/BR8600412A/en unknown
- 1986-01-31 JP JP1999886A patent/JPS61247368A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112021655A (en) * | 2013-07-16 | 2020-12-04 | 菲利普莫里斯生产公司 | Radially robust smoking article filter |
| CN112021655B (en) * | 2013-07-16 | 2024-03-15 | 菲利普莫里斯生产公司 | Radially robust smoking article filter |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2170391A (en) | 1986-08-06 |
| DE3602997A1 (en) | 1986-08-07 |
| GB8601984D0 (en) | 1986-03-05 |
| GB2170391B (en) | 1988-07-20 |
| CA1261227A (en) | 1989-09-26 |
| FR2576757A1 (en) | 1986-08-08 |
| BR8600412A (en) | 1986-10-14 |
| FR2576757B1 (en) | 1988-12-23 |
| JPS61247368A (en) | 1986-11-04 |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |