CN1150405A - Manufacture of multi-ply paper laminates using controlled adhesive strike-through - Google Patents
Manufacture of multi-ply paper laminates using controlled adhesive strike-through Download PDFInfo
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- CN1150405A CN1150405A CN96190270A CN96190270A CN1150405A CN 1150405 A CN1150405 A CN 1150405A CN 96190270 A CN96190270 A CN 96190270A CN 96190270 A CN96190270 A CN 96190270A CN 1150405 A CN1150405 A CN 1150405A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B29/00—Layered products comprising a layer of paper or cardboard
- B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/14—Printing or colouring
- B32B38/145—Printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/26—All layers being made of paper or paperboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2317/00—Animal or vegetable based
- B32B2317/12—Paper, e.g. cardboard
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- Laminated Bodies (AREA)
- Paper (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
This invention relates to the manufacture of continuous-sheet, adhesively bonded paper laminates of three or more plies. The sheets are preferably made by flexographic printing using a novel controlled adhesive strike-through technique. The multi-ply laminates of this invention are especially suited for paper products such as disposable table napkins, since they can be printed to the edge without embossing or loss of registration.
Description
Background of invention
Invention field
Our invention relates to uses three layers or the more multi-layered production of passing through the continuous continuous slice formula paper laminate of bonding that a kind of controlled binding agent strike-through is made.Wherein, the multiple connection of interlayer is finished by once applying binding agent.The multi-layer laminate of our invention be particularly useful for such as can disposable desk napkin paper etc. the color printing paper product because our laminated product until its edge can both carry out color printing and not follow the sort of of edge embossing not line up usually.
The description of prior art
The conversion process of manufacturing such as three-ply paper napkin paper mainly relies on limit portion embossing to make each laminating tightly together.In the curved surface printing machine that designs for paper roll is converted to napkin paper early, the step of cutting and limit portion embossing is usually early than the operation of color printing.As a result, be difficult to or can not on the limit of completed napkin paper, stamp color, because color is alignd completely in the limit of embossing portion.Therefore, the printing on most of colored napkin paper is limited to the core of the not embossing of napkin paper.
Some newer three-ply papers for roll extrusion are converted to curved surface printing machine that napkin paper designs the embossing operation of limit portion are placed after the colored printing.But face the problem of alignment during these machines three-ply paper loose when using, not bonding equally.
And, owing to only interconnect usually in the part (being generally limited to the edge) of embossing with the individual layer in the multilayer napkin paper of traditional and newer device fabrication and since layer between separated from one another thereby napkin paper that can not the cutting profile novelty.As a result, for the practical application purpose, napkin paper almost all is limited to square shape.
The prior art of attempting to address these problems has used binding agent that each layer sticked together, thereby reduces or save the necessity of edge embossing.But a plurality of binding agent application stations of the technological requirement of these prior arts, usually each boundary at interlayer has such application station.Therefore, for example one three layers laminated product need apply binding agent twice.And, between layer, provide binding agent by sprinkling, each layer sticked together use than required more binding agent.
Therefore, in order to reach the layer bonding on whole laminated product surface, prior art applies wheel for the cover binding agent that each extra play need add.This has constituted the complexity of prior art technology and expensive.
The concise and to the point description of invention
We have found that by using and a kind ofly make multi-layer laminate from a new technology that sees through towards another side of paper-carrier by controlled binding agent.This has guaranteed that one or more extra plays are bonded on the reverse side that applies the binding agent one side of paper-carrier.By the basic weight and the airflow hole of control paper-carrier and extra play, and the time of adhesive properties and setting, using a binding agent just can be with three layers or more multi-layered connection.There is no need to provide any heat to guarantee that binding agent sees through.Can print and guarantee the alignment of color to its edge from our napkin paper of laminated product manufacturing, and than common pass through the edge embossing with NAG three layer by layer stampings be converted to napkin paper and save 25%.
In our preferred embodiment of invention, use a kind of curved surface imprint process that binding agent is applied on the paper-carrier.The synusia that application has per 3000 square feet of 9.7 pounds of basic weights makes three layer by layer during stampings, and we have obtained very satisfied peel strength at all every interlayers of three layers when the coverage rate of the polyvinyl alcohol adhesive on paper surface only is 1% to 2%.Only having used a binding agent just all has been bonded in together three layers.Other embodiment of our invention comprises that other binding agent of many utilizations applies the technology of technology, has equally also obtained seeing through of controlled binding agent.
The important use that though the production of paper napkin paper material is for we invents, this invention also has other purposes.These purposes comprise that wherein one deck can be a kind of liquid-tight plastic paper such as making three layers of tablecloth; The laminated product of strengthening, wherein paper-carrier is selected from a large amount of firm synthetic materials; Paper/metal laminated products is such as the packing material of chewing gum; The laminated product with dissection that comprises one or more very thick layers.
Therefore, an object of the present invention is to obtain two or more connections at interlayer multi-ply paper laminates is provided by only using an adhesive layer.
Another object of the present invention provides such multi-layer laminate, wherein obtains comparable peel strength at interlayer.
Another object of the present invention is to reduce the quantity that is used for realizing the binding agent of bonding between the multilayer of laminated product as far as possible.
A further purpose of the present invention provides a kind of technology of producing the flexography of this laminated product, and other alternative technology.
The concise and to the point description of figure
Fig. 1 is three sketches made from technology of the present invention of stampings layer by layer, has shown that two skins are stripped from from the paper-carrier of centre.
Fig. 2 makes one three plane of the flexography machine of stampings layer by layer with our invention.
Fig. 3 be equipped with one we proved feed roller on the flexography that is applicable to the rubber blanket of realizing design of the present invention.
Fig. 4 uses the present invention to be used to make five planes of another special flexography machine of stampings layer by layer.
Fig. 5 is specifically designed to the plane of realizing a rotogravure printing type printing machine of the present invention.
Fig. 6 is the plane of printing machine, has wherein adopted and has realized a special supercharging cylinder of the present invention.
Fig. 7 has shown a kind of feasible supercharging binding agent feedway corresponding to the cylinder of Fig. 6.
Fig. 8 is the plane that the sprinkling pipeline of application binding agent is realized another kind of technology of the present invention.
Fig. 9 has shown a kind of binding agent injection apparatus that adopts the parallelpiped of binding agent.
Figure 10 uses hot melt to separate the plane that binding agent is realized another alternative techniques of the present invention.
Figure 11 has illustrated a kind of laminated product that the controlled strike-through of a kind of usefulness is made, and wherein the feature of each layer is selected, makes to form several bonding patterns on the one side of paper-carrier.
Figure 12 has shown a kind of laminated product made from the paper-carrier of high-loft interior with dissection.
Figure 13 shown a kind of be suitable for producing Figure 12 in the style of the rubber blanket of interlayer laminated product is arranged.
The detailed description of figure
Earlier with reference to 1, one in figure constructed in accordance three layer by layer the structure of stampings comprise paper-carrier 1, the second layer 2, and the 3rd layer 3.Can see that the second layer and the 3rd layer are peeled off from paper-carrier.Between layer and paper-carrier adhesive structure 6 that applies at first and the adhesive structure 7 that sees through.
Fig. 2 has shown a kind of the preferred embodiments of the present invention, applies binding agent with a curved surface printing machine.Paper-carrier 1 and the 3rd layer 3 are wrapped on the uncoiler 9 together.They launch from uncoiler 9, walk around jockey pulley 18 and arrive roll gap 16 between material loading roller (Plate Roller) 11 and the roller platen 4 therefrom.Binding agent 6 is applied to a surface of paper-carrier 1 from the rubber blanket that a fixed structure is arranged 15 that is positioned at material roller 11 outsides.At nip 16 places, begun penetrating of controlled initial attachment agent structure 6.
Paper-carrier 1 and the 3rd layer of 3 calender roll 5 that continues to advance to the bottom around roller platen 4.At this place, ground floor 3 (launching and walk around jockey pulley 19 from uncoiler 13) is pressed towards adhesive structure 6 at roll gap 17.The high pressure that applies between bottom calender roll 5 and roller platen 11 has been finished the operation that forces binding agent to form the adhesive structure 7 that sees through by paper-carrier.Made three layer by layer stampings continue to arrive forward coiling machine 14 from roll gap 17, completed volume quilt is on coiling machine 14.
In this preferential embodiment of the present invention, binding agent is to be applied on the anilox roller 10 by the two blade systems 12 of a dihedral.Anilox roller 10 is sent to the top of rubber blanket 15 with binding agent, as apply ink in common flexography operation.As a kind of of the two blade systems 12 of dihedral substituted, anilox roller 10 can rotate (not shown) by a relative ejecting roller, and ejecting roller is supplied with the groove (not shown) from one and obtained binding agent.
We find that a kind of suitable pattern of rubber blanket 15 is to use the argyle design of 1/32 inch point on the center of 0.265 inch and 0.370 inch.Referring to Fig. 3, this pattern provides about 1% area coverage, and we find that this is enough for three layers of product.Another suitable pattern is used 1/16 inch site, and one 3.1% area coverage is provided.Normally, bigger site provides the binding agent penetrance of increase, is particularly useful for having the use than the paper of low-flow.
The preferred chart speed degree of this embodiment is between 50 to 3000 feet per minutes, and wherein Zui Jia scope is from 530 to 2500 feet per minutes.In the minimum point of speed, binding agent is easy to drop on and binding agent is applied to the application point on the rubber blanket 15 and binding agent is sent between the transmission point on the paper-carrier at roll gap 16 places, causes the accumulation of the fiber on the rubber blanket 15.The upper limit of chart speed degree is mainly decided according to the performance of equipment.
At roll gap 16 places, be used for applying binding agent, an amount of " amount of compression " or the magnitude of interference are between 0.002 inch to 0.003 inch.Between roller platen 4 and bottom calender roll 5, use high pressure, so that penetrate.We find that per square inch pressure up to about 300 pounds/inch or more, suits.Be higher than 50 pounds/inch and to be lower than 300 pounds/inch pressure especially good.
Our invention requires the performance of paper-carrier and other layer and binding agent to be complementary.Highly significant be by selecting the suitable types of binder and the performance of paper-carrier, thereby not need to provide heat to be convenient to seeing through of binding agent.These factors are discussed below us.
Fig. 4 has shown and has made five embodiments of the invention of stampings product layer by layer.This can finish second paper-carrier 21 and layer 5 22 on uncoiler 20 by increasing an other uncoiler 20.Binding agent is applied in to second paper-carrier 21 by second the last material roller 26 that supports another rubber blanket 27, and rubber blanket 27 is supplied with bonding agent by second anilox roller 25 and the two scraping blades 24 of another dihedral.Three layer by layer stampings can be directly be provided to roll gap between second roller platen 28 and second bottom calender roll 31 from initial production operation shown in Figure 2.Five layers of product that make are wound onto on the coiling machine 32 then.
Certainly, alternately, one has five layers or more multi-layered laminate product and can finish with two steps by the equipment that Fig. 2 shows.Under the sort of situation, initial step make three layer by layer stampings be uncoiled machine 13 and decontrol, add other two-layer from uncoiler 9.The operation of our technology is similar with above description in other respects.
Personnel with ordinary skill should be understood that by only increasing an other synusia, rather than the step of two layers, and the technology of using our invention also can be made the laminated product of even level.All these variations all are positioned within the scope of the present invention, and we attempt only to make its scope that is subject in the claims to be stated.
Referring now to Fig. 5,, we have shown an alternative embodiment of the invention, wherein adopt the flexography binding agent applying method of anilox roller and rubber blanket to be substituted by the knurling rolls 40 with flat roll 41 reverse rotations, it is provided with rotogravure similar.Adhesive structure 46 is applied on the paper-carrier 38 from container 39 by the pattern on the knurling rolls 40.Paper-carrier 38 and the 3rd layer 37 are supplied to by uncoiler 36.Ground floor 44 joins from roll gap and the paper-carrier that uncoiler 43 is supplied between flat roll (Flat Roll) 41 and flat roll 42.This has produced the adhesive structure 47 between paper-carrier 38 and the 3rd layer 3, shows as the embodiment of Fig. 2.
Fig. 6 has set forth another embodiment, and wherein binding agent is extracted into from container 49 by pump 50 in a plurality of holes 52 of edge of porous drum 48.Relative roller platen 4 reverse rotations in the edge of drum 48.This has produced adhesive structure 6.Fig. 7 has shown the details drawing of a feasible feed system of porous drum 48.In this embodiment, binding agent supply pipe 53 ends at the hyperbaric chamber 54 of drum 48 1 ends.Join at the edge of drum 48 and supply hole 55 and the hyperbaric chamber 54 parallel with the axle of drum 48, hyperbaric chamber 54 keeps static when drum 48 rotations.Binding agent flows out by supply hole 55 and from hole 52 then, thereby produces on paper-carrier a bit or the binding agent of other required mode.Certainly, alternately, can pressurize by binding agent in the whole inside of drum 48.
Fig. 8 and Fig. 9 have set forth another feasible binding agent feedway.In this embodiment, binding agent is drawn under pressure in the supply pipe 56, and by series of nozzles, binding agent is directed onto on the paper-carrier 1 from a plurality of holes 59 herein.Consequently along the binding agent of the parallel wire of one-tenth of the spool length direction of laminated product.This embodiment has saved any binding agent feeding roller system.
Figure 10 has also set forth an alternative embodiment of the invention, adopts a hot-melt adhesive.In this embodiment, a double-deck paper roll that comprises paper-carrier 67, the 3rd layer 68 and hot-melt adhesive structure 66 (it can apply by the multiple technologies in the present technique) are at first by around to uncoiler 60.This bilayer paper roll, have two-layer also mutual bonding layer,, enter between the roller 65 of heating and the pressure roll 72 (if desired from uncoiler 60 expansion, pressure roll also can be heated), ground floor 69 is fed into the roller 65 of heating and the roll gap between the pressure roll 72 from uncoiler 61 simultaneously.So fully melt hot-melt adhesive structure 66 and made it see through paper-carrier 67 and arrive on the 3rd layer 68, also adhered to ground floor 69 simultaneously.This make three layer by layer stampings twined on the uncoiler 71.
Personnel with ordinary skill should be understood that many other apparatus also can be used to realize the present invention.For example, other binding agent apply the order also be possible.We attempt to comprise that all these change, and make our patent only be subject to the scope that claim is stated.
The description of the multi-layer laminate that available our invention is produced
Fig. 1 has shown the simplest three stampings of producing with our invention layer by layer.In this structure, binding agent 6 is applied on the surface of paper-carrier 1, and our technology makes this bonding agent produce adhesive structure 7 through paper-carrier and at its reverse side.Should select the performance of paper-carrier 1 to be convenient to seeing through of binding agent; Select ground floor 2 and the 3rd layer 3 so that reduce or prevent that binding agent from seeing through those layers.
It is feasible that the one side that adopts the through-transmission technique of controlled binding agent to make multilayer be bonded at paper-carrier is made laminated product.Figure 11 has set forth such arrangement.In this embodiment of the present invention, paper-carrier 1 selects to have the structure (standard that use is listed below) of opening wide very much; Ground floor 2 is selected the structure of convergence as the 4th layer 73.Select the open design the same for the 3rd layer 3, thereby the assurance binding agent is through the 3rd layer 3 and carrier layer 1 with carrier layer 1.This has produced adhesive structure 72 between the 3rd layer 3 and the 4th layers 73, prevent that simultaneously binding agent from seeing through ground floor 2 or the 4th layer 73.By being that the intermediate layer selects suitable aperture size (preferably by the air-flow experiment measuring), can be still applying operation and make adjacent which floor keep similar peel strength by binding agent only.Perhaps,, can see through these layers, one or more layers remainder with this structure is separated by the restriction binding agent as answering the needs of some specific purposes.We claim this prevention binding agent to see through to guarantee the enough bondings of interlayer, and the balance of avoiding binding agent to arrive the paper performance of outermost outer surface thoroughly simultaneously is " controlled sees through ".
In other embodiments of the invention, needn't every layer all be made of paper.For example, one deck or more skin can be pliable and tough metal formings, resemble the packing material of chewing gum.Similarly, paper-carrier can be the spunbond thing with suitable stream condition.Such paper-carrier has increased the intensity of laminated product.The layer of varying strength can be used to make the article such as microwave popcorn bag etc.In this example, the selected intensity that provides of paper and binding agent has kept the function that discharges moisture in the explosion process simultaneously.
What Figure 12 showed is the another kind of structure made from our invention.In this embodiment, rubber blanket 15 is the line 78 cross one another diamond patterns of projection as shown in Figure 13, and purpose is in order to produce a rhombus or interior rhombus adhesive structure 75 with dissection.This structure is applied on the paper-carrier 74 of a high-loft, and paper-carrier 74 twines on the uncoiler with one tighter the 3rd layer 76.First tighter layer 77 is provided on the independent uncoiler.The process implementing example that can adopt Fig. 2 to set forth makes adhesive structure 75 see through the paper-carrier 74 of high-loft and produces a corresponding rhombus adhesive structure 78 it is fixed to the high-loft paper-carrier on the 3rd layer 76.The result is because its high-loft obtains the sealing scraps of paper with good insulating properties.But have strong and tight skin.A kind of laminated product like this be can be disposable the desirable articles for use of hospital surgery working doctor clothes.Selectively, its skin can be made to produce the laminated product of a same waterproof by the synthetic of waterproof.A purposes of this kind laminated product is that be used for can disposable tablecloth.
Following table has shown the selection of the paper mold of selecting that is applicable to various embodiment of the present invention.
| The tissue paper type | Basic weight pound/3000 square feet | The air-flow cubic feet/minute | The % percentage elongation | Pull-pounds/inch | No-load thickness inch |
| Anhydrous wrinkle | ????13.5 | ????500 | ????80 | ????0.3 | ????0.014 |
| Anhydrous wrinkle | ????11.0 | ????275 | ????50 | ????0.5 | ????0.011 |
| Anhydrous wrinkle | ????10.5 | ????160 | ????22 | ????0.7 | ????0.006 |
| Anhydrous wrinkle | ????9.7 | ????120-140 | ????12 | ????1.1 | ????0.003 |
| Anhydrous wrinkle | ????14.0 | ????20-30 | ????7 | ????2.7 | ????0.004 |
| Wet wrinkle | ????14.0 | ????50 | ????4 | ????5.0 | ????0.004 |
| The machine glazing | ????12.5 | ????＜1 | ????0 | ????6.0 | ????0.002 |
| Spunbond thing | 0.5 ounce/square yard | ????600 | ????20 | ????2.5 | ????0.007 |
| Spunbond thing | 1.0 ounce/square yard | ????300 | ????40 | ????5.0 | ????0.13 |
The order that this common paper type falls progressively with the aperture is arranged, and is preface as what show in the past with the air-flow size.The air-flow detector that the test company (Testing Co.) that we preferably use N.J. Hope to agree makes is measured air-flow.Air-flow is measured with cubic foot per minute on every square feet fabric under the pressure reduction of 0.5 inch water.In order to use as a kind of paper-carrier, we find need at least 40 cubic feet/minutes air-flow.Air flow value is high more, and is big more for the transit dose of the binding agent of a given caking ability.Two kinds of shown synthetic spunbond things are suitable for use as paper-carrier.
For such as the intermediate layer that shows with code 3 among Figure 11, preferably use medium air flow value.It is best being in about 50 typical airflow values in about 100 scopes, and this number according to required layer decides.
Use (for example, those layers that in Figure 11, show) for skin with code 2 and 73, need be with the not too loose paper of lines.Preferably use air flow value to be lower than 50 cubic feet/minute layer, but preferably be lower than 20 cubic feet/minute.This helps avoid undesirable binding agent and sees through.The synthetic spunbond thing that shows in the aforementioned table all is not suitable as skin.
The moisture of paper can become important in some cases.We advise that water content is higher than 3%, can produce excessive dust because be lower than this level.
The basic weight that can see each layer from aforementioned table can be made it be suitable for being used as paper-carrier or skin by independent control in a quite wide scope.
The description of suitable binder
Our invention can be adopted the binding agent of very wide scope, is noted that the caking ability that makes the binding agent that is applied and the opening degree of other performance and selected paper-carrier are complementary.Following types of binder can be used: silicate (particularly sodium metasilicate); Animal glue; Fish glue; Casein glue; Rubber made from soybean cake; The starch base binding agent; Such as borated dextrin such as the 13-1200 of national starch and chemical company and 13-1558; Such as the polyvinyl alcohols such as 18-1535 of national starch and chemical company, ethylene vinyl acetate and cellulose binder.In addition, natural and reclaimed rubber binding agent; Butyl rubber and polyisobutene; Nitrile rubber binding agent and styrene-butadiene rubber binding agent is all among spendable latex type binding agent scope.The 3rd class of binding agent is thermoplastic rubber's binding agent of A-B-A block copolypeptide (A-B-A blackcopolymer).
Especially, we have found that polyvinyl alcohol (PVC) binding agent such as the 18-1535 glue of being produced by New Jersey Bridgewater national starch and chemical company provides a suitable basis for the binding agent that manufacturing is used for our technology.This binding agent is for the basic weight with 9.7 pounds/3000 square feet, and the general carrier paper of about 120 to 140 cubic feet/minute air-flow, at the caking ability of about 2500 centipoises, when 3.1% the coverage rate of point that has 1/16 inch, can be fully utilized.
Another suitable binding agent is CYCLOFLEX
TML33-9600, it also can be obtained by National Starch and Chemical Corp.In order to use together with the paper-carrier that has 120 to 140 cubic feet of/minute air-flows with 9.7 pounds/3000 square feet of basic weights, this starch base binding agent can use within the scope of 50 to 700 centipoise caking abilities, though can obtain more performance in the lower near this scope.Particularly, this kind binding agent is 50 to 200 centipoises by the caking ability scope of special recommendation.In general, if the type selecting of paper is suitable, the caking ability of binding agent also can be used in the scope of 50 to 5000 centipoises.
For caking ability well beyond above scope, we have found that the binding agent of low caking ability produces too much gauffer, and the binding agent of higher caking ability can not produce satisfied peel strength between paper-carrier and the 3rd layer (for example resemble and use code 3 to show among Fig. 1 and Fig. 2).
The detailed description of technology
Turn to now and can be used to implement concrete process conditions of the present invention, should an at first clear and definite very important purpose provide laminated product, this laminated product not only has enough peel strengths at every interlayer combines each layer, and peel strength is complementary, to avoid the big difference of crossing at different interlayer peel strengths.This has prevented one deck preferentially from the disengagement of other layer, and this in most of the cases is undesirable.More particularly, we have found that in order to obtain best result that the minimum mean value of peel strength should surpass 20% with the ratio of high mean value.
Peel strength can use multiple apparatus measures.We like using the Si Ming-Alberta model 225-1 that is produced by the Si Ming of the philadelphia, pa-Alberta instrument company detector that rubs/peel off not measure 180 ° of peel strengths.We are with one three inches wide laminated product band, narrower are with its error along with raising because measure.In the example below, we test with the rate of departure of 15 inches of 20 second time cycles, per minute, measure two peak values and the mean value of peel strength with 3 inches wide of grams/per.
For purpose relatively, the measurement of peel strength is two kinds commercially available 10 pounds/3000 square feet that are produced by the glad Lincoln's of wheat Lincoln's paper pulp and the inferior company of paper three carry out on the stampings layer by layer.This Lincoln's laminated product (Lincoln Laminates) has been converted into napkin paper, and one has tulip pattern and buff, and another has rose pattern and deep pink.On per two joints of interlayer, carried out the test of three kinds of peel strengths.Be designated as the thermometrically intermediate layer of " T " and the peel strength between top layer, and indicate the thermometrically intermediate layer of " B " and the peel strength of the tack coat between the bottom.
Yellow tulip (changing) (dark color) by the Lincoln
The average peel strength of maximum (peak value) peel strength
Restrain/3 inches T1. 11.8 4.82. 14.8 5.23. 16.9 5.5B 1. 12.7 4.72. 12.4 5.53. 14.0 5.0 of/3 inches grams
Pink rose (changing) (dark color) by the Lincoln
The average peel strength of maximum (peak value) peel strength
Restrain/3 inches T1. 13.3 3.52. 5.7 3.33. 7.4 3.5 of/3 inches grams
B
1.????10.9????4.7
2.????12.1????4.3
9.5 4.3 Lincolns three layer by layer the average peel strength of stampings between/3 inches of about 3.3 to 5.5 grams, it has been generally acknowledged that this value is applicable to such as the commerce of novel paper napkin paper to use.
We have found that in order successfully to implement the present invention it is very necessary suitably selecting raw material and controlling some selected process conditions.Most important parameter is a types of binder, caking ability and setting time; The binding agent coverage rate; Paper-carrier basic weight and the air-flow of measuring by above-described Measuring Instrument of Airflow.We have found can provide controlled binding agent to see through and guarantee the multiple junction of interlayer is only applied the production that multi-layer laminate is finished in operation with a binding agent by the suitable adjustment of parameter.
More particularly, when with a kind of paper-carrier that has than low-flow, be necessary to reduce the caking ability of binding agent usually; Improve the area coverage of binding agent or the size of used bonding point, so that guarantee enough seeing through.For the outer paper that does not need to see through, should use low air-flow (being preferably lower than 50 cubic feet/minute).The binding agent setting time must guarantee not solidify between the roll gap on bonding application point and the bottom calender roll.Use the binding agent coverage rate for great majority and be higher than 0.5% enoughly, the pattern of rubber blanket should be done corresponding selection.
Example
According to the program of above statement, use the Shawano ply of paper to do three kinds of tests.All adopt the 18-1535 polyvinyl alcohol adhesive of national starch and chemical company.It has the caking ability of 2500 centipoises.The dot pattern with point of 1/16 inch that shows in Fig. 5 is used to provide 3.1% area coverage.
In the example of back, with the intensity of the initial attachment agent structure of code 6 marks and expression, and use the intensity of the adhesive structure of representing with code 7 among peel strength test volume Fig. 1 that " B " indicate that sees through among the peel strength thermometrically Fig. 1 that indicates with " T ".
Example 1
Under these conditions, use the technology of this invention, the non-switched Shawano ExtraBond of air-flow with 9.7 pounds/3000 square feet of basic weights and 120 to 140 cubic feet/minute
TMPaper is made a kind of three stampings layer by layer.Obtain following result:
Shawano ExtraBond
TM-non-switched
The average peel strength of maximum (peak value) peel strength
Restrain/3 inches of/3 inches grams
T
1.????132.1????????????????30.6
2.????151.9????????????????37.7
3.????156.1????????????????34.9
B
1.????166.7????????????????33.0
2.????93.0?????????????????24.6
3.????77.5?????????????????22.9
The laminated product peel strength that produces is apparently higher than commercially available laminated product by Lincoln's conversion.
Example 2
After being converted to napkin paper, carried out the peel strength test on the stampings layer by layer same three.Obtain following result:
Shawano ExtraBond-conversion-colourless
The average peel strength of maximum (peak value) peel strength
Restrain/3 inches of/3 inches grams
T
1.??????77.1????????????????22.7
2.?????102.1????????????????25.7
3.??????61.5????????????????23.1
B
1.??????55.4?????????????????9.3
2.??????33.9?????????????????8.7
3.????40.3????12.9
Example 3
We have also carried out the test of situ strength at the napkin paper from same three stampings conversions layer by layer, and this laminated product has the Micky Mouse pattern of printing.Obtain following result:
Shawano ExtraBond-conversion-coloured
The average peel strength of maximum (peak value) peel strength
Restrain/3 inches of/3 inches grams
T
1.??????????115.3???????????????24.9
2.??????????104.3???????????????30.5
3.??????????99.7????????????????25.3
B
1.??????????31.9????????????????8.9
2.??????????56.2????????????????12.2
3.??????????40.2????????????????9.9
Set forth as previous examples, the peel strength that our invention produces substantially exceeded the product that those traditional handicrafts that apply step by two bondings make.And the ratio of peel strength has substantially exceeded 20%.
The personnel that have ordinary skill in this technology should be understood that in this scope of invention, can carry out changeableization and change.We attempt the laminated product and the process that comprise that all are suitable, and the scope that our invention only is limited in the following claim specifically to be described.
Claims (2)
- We require:1. paper laminate structure, it comprises a paper-carrier with first surface and second surface; Be applied to the initial adhesive structure of above-mentioned first surface; On above-mentioned second surface the 3rd layer; Ground floor below above-mentioned adhesive structure; And on above-mentioned second surface of above-mentioned paper-carrier and by the controlled adhesive structure that sees through that sees through between above-mentioned the 3rd layer that produces of above-mentioned initial attachment agent structure.
- 2. the paper laminate structure of claim 1, the peel strength of the wherein said adhesive structure that sees through be at least the above-mentioned initial adhesion agent structure that applies peel strength 20%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38823195A | 1995-02-10 | 1995-02-10 | |
| US08/388,231 | 1995-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1150405A true CN1150405A (en) | 1997-05-21 |
Family
ID=23533235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96190270A Pending CN1150405A (en) | 1995-02-10 | 1996-02-09 | Manufacture of multi-ply paper laminates using controlled adhesive strike-through |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0755326A4 (en) |
| CN (1) | CN1150405A (en) |
| AU (1) | AU4920396A (en) |
| BR (1) | BR9605803A (en) |
| CA (1) | CA2187430A1 (en) |
| SE (1) | SE507002C2 (en) |
| WO (1) | WO1996024485A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650426A (en) * | 2021-06-18 | 2021-11-16 | 安徽骏飞标识设计制作有限公司 | Ink jet printing process and device based on high-density composite material multilayer substrate |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6136422A (en) * | 1996-04-05 | 2000-10-24 | Eatern Pulp & Paper Corporation | Spray bonded multi-ply tissue |
| DE29821626U1 (en) * | 1997-12-10 | 1999-02-18 | Schade Peter | Endless napkin |
| US6379447B1 (en) | 1999-04-05 | 2002-04-30 | National Starch And Chemical Investment Holding Corporation | Polysaccharide adhesives for multi-ply paper products |
| CN1297392C (en) | 2001-11-05 | 2007-01-31 | 宝洁公司 | Stretch composites and methods of making the composite |
| WO2005095713A1 (en) * | 2004-03-02 | 2005-10-13 | Sca Hygiene Products Gmbh | Multi-ply planar absorbent product and process for manufacturing such a product |
| US7658811B2 (en) | 2004-03-29 | 2010-02-09 | The Procter & Gamble Company | Letterpress application of elastomeric compositions |
| US7820875B2 (en) | 2004-03-29 | 2010-10-26 | The Procter & Gamble Company | Disposable absorbent articles being adaptable to wearer's anatomy |
| US8198200B2 (en) | 2004-03-29 | 2012-06-12 | The Procter & Gamble Company | Web materials having both plastic and elastic properties |
| US20050215972A1 (en) | 2004-03-29 | 2005-09-29 | Roe Donald C | Disposable absorbent articles with zones comprising elastomeric components |
| US8568382B2 (en) | 2004-03-29 | 2013-10-29 | The Procter & Gamble Company | Disposable absorbent articles having co-elongation |
| PL235443B1 (en) * | 2018-03-31 | 2020-08-10 | Paw Społka Z Ograniczoną Odpowiedzialnością | Method for producing overprinted napkins from tissue paper |
| EP4180013A1 (en) * | 2021-11-12 | 2023-05-17 | Fameccanica.Data S.p.A. | Method for manufacturing sanitary articles, method for applying a glue pattern on a web, and related apparatuses |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673060A (en) * | 1970-01-12 | 1972-06-27 | Int Paper Co | Adhesively laminated creped dinner napkin |
| US3683921A (en) * | 1970-08-17 | 1972-08-15 | Berry A Brooks | Absorbent sponges |
| US3726750A (en) * | 1971-05-20 | 1973-04-10 | Kimberly Clark Co | Composite cellulosic laminate and method of forming same |
| US3953638A (en) * | 1973-11-26 | 1976-04-27 | The Procter & Gamble Company | Multi-ply absorbent wiping product having relatively inextensible center ply bonded to highly extensible outer plies |
| US4232074A (en) * | 1978-02-15 | 1980-11-04 | Chavannes Marc A | Reinforced paper product and method for the manufacturing thereof |
| US5240562A (en) * | 1992-10-27 | 1993-08-31 | Procter & Gamble Company | Paper products containing a chemical softening composition |
-
1996
- 1996-02-09 CN CN96190270A patent/CN1150405A/en active Pending
- 1996-02-09 EP EP96905446A patent/EP0755326A4/en not_active Withdrawn
- 1996-02-09 BR BR9605803A patent/BR9605803A/en not_active Application Discontinuation
- 1996-02-09 WO PCT/US1996/001812 patent/WO1996024485A1/en not_active Application Discontinuation
- 1996-02-09 AU AU49203/96A patent/AU4920396A/en not_active Abandoned
- 1996-02-09 CA CA002187430A patent/CA2187430A1/en not_active Abandoned
- 1996-10-09 SE SE9603693A patent/SE507002C2/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650426A (en) * | 2021-06-18 | 2021-11-16 | 安徽骏飞标识设计制作有限公司 | Ink jet printing process and device based on high-density composite material multilayer substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0755326A1 (en) | 1997-01-29 |
| BR9605803A (en) | 1997-08-05 |
| SE9603693L (en) | 1996-11-29 |
| SE507002C2 (en) | 1998-03-16 |
| WO1996024485A1 (en) | 1996-08-15 |
| AU4920396A (en) | 1996-08-27 |
| SE9603693D0 (en) | 1996-10-09 |
| EP0755326A4 (en) | 1997-11-19 |
| CA2187430A1 (en) | 1996-08-15 |
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