CN1178502A - Multi-layer, flexible transfer strip, process for its production and its use in hand device - Google Patents
Multi-layer, flexible transfer strip, process for its production and its use in hand device Download PDFInfo
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- CN1178502A CN1178502A CN 96192501 CN96192501A CN1178502A CN 1178502 A CN1178502 A CN 1178502A CN 96192501 CN96192501 CN 96192501 CN 96192501 A CN96192501 A CN 96192501A CN 1178502 A CN1178502 A CN 1178502A
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- transfer layer
- transition zone
- binding agent
- hollow bead
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Abstract
The invention relates to a multi-layer, flexible transfer tape with a backing and an adhesive layer, wherein between the backing and adhesive layer a bonding agent-containing transfer layer is provided, which adheres more strongly to the adhesive layer than to the backing. With this a) the bonding agent-containing transfer layer and/or b) the adhesive layer contains fine hollow particles and a water-soluble, solid alcohol. Furthermore the invention relates to a suitable process for producing such a transfer tape as well as to special application possibilities of same, in particular in rolled-up form in a hand apparatus.
Description
The present invention relates to a kind of multi-layer, flexible transfer strip with end liner and adhesive layer, wherein between this end liner and adhesive layer, a transfer layer that contains binding agent is arranged, it is stronger to the cohesive of the cohesive comparison end liner of adhesive layer.The preparation method who the invention still further relates to this transition zone with and in hand-operated tools to roll the application of volume mode.
Above-mentioned transition zone springs from European patent EP 0318804, and the soluble cellulose derivative of agent is removed in the conduct that the transfer layer that is characterized in containing binding agent contains 0.5-5% (weight).The transfer layer that contains binding agent of this band can to the place that will cover or area (large tracts of land also can) nattily and edge clear coat.It with roll the volume mode in hand-operated tools simply to coat on related matrix rapidly, equably.The viscosity of adhesive layer is got rid of widely during removing.Find when using this transition zone,, then it is coated when the matrix, blind crack can in transfer layer, occur with hand-operated tools if in transfer layer, contain pigment.When being coated with ink or prepared Chinese ink when writing on the transfer layer, will cause the person's handwriting that blurs.When long-time placement transition zone, wherein adhesive layer more or less will " be killed ", and loss viscosity.When reusing this transition zone, can cause bad initial adhesion.
U.S. Pat P3413168 has disclosed a kind of autoadhesion cover tape, and the outstanding thus particle diameter that contains statistical distribution in its adhesive layer is the hollow microsphere in the 40-100 μ m.When depressing band, this microsphere can make accurately location of band, and broken.As a result, make band be bonded to matrix.Japan Patent JP58142944A has described a kind of solid cladding material, and it contains the hollow micro capsule of 20-55%, and this micro-capsule has been full of solvent, resin solution or liquid resin.
Therefore, task of the present invention is to improve existing flexible transfer strip, so that described the problems referred to above and operating characteristic are improved.
Can solve this task according to the present invention, promptly a) contain the transfer layer of binding agent, and/or b) adhesive layer contains tiny hollow bead and water-soluble solid alcohol.
In other words, embodiment a) and embodiment b) each can be realized separately.Yet, above-mentioned two embodiments are combined, and have following superiority.
Be favourable preparation transition zone of the present invention, but a kind of method of particularly suitable, and this method is coated on the end liner of a flexibility with the plastic dispersion liquid that common coating processes will contain pigment.And dispersant evaporated.Thereafter, the aqueous dispersions that will contain adhesive by common coating processes is coated on the formed transfer layer, then evaporates moisture.The plastic dispersion liquid that wherein a) contains pigment comprises water-soluble solid alcohol and small hollow bead, and/or b) aqueous dispersions that contains adhesive comprises water-soluble solid alcohol and small hollow bead.
According to the present invention, by embodiment a) and b) two-layer in have at least one deck must have water-soluble solid alcohol.It at room temperature must be a water-soluble solid alcohol.In this class alcohol particularly including 4 yuan of alcohol, as different tinea alcohol, 5 yuan of alcohol, as arabitol, adonite and this sugar alcohol, 6 yuan of alcohol are as D-sorbite, sweet mellow wine and dulcitol.Also can comprise the alcohols that contains one or more other functional groups that the scope of the invention is not hindered, for example glucose and fructose.Can comprise disaccharides in addition, as sucrose.Wherein D-sorbite owing to its good moisture-absorption characteristics, is the most suitable.The transfer layer that preferably contains binding agent contains the water-soluble solid alcohol of 3-25% (weight), and better with 5-20% (weight).The content of the water-soluble solid alcohol in adhesive layer is 1-40% (weight) preferably, and is advisable with 5-30% (weight).
According to the present invention the variant of transition zone a) and b) two-layer in have at least in one deck, with the top water-soluble solid alcohol of having mentioned, also contain tiny particularly flexible hollow bead.This does not get rid of and only contains small hollow bead in another layer or only contain water-soluble solid alcohol.
Above-mentioned small hollow bead is preferably spherical in shape.At adhesive layer b) in the diameter 0.25-5 μ m preferably of hollow particle, and be advisable with 0.3-2 μ m.At the diameter of the hollow particle of the transfer layer that contains binding agent in a) 0.3-10 μ m preferably, and be advisable with 0.3-5 μ m.In a word, the void volume of above-mentioned hollow particle adds up to about 20-55%, and is advisable with 25-40%.Some advantages that will describe this paper back for transition zone of the present invention is had, above-mentioned small hollow bead are preferably made flexible, have the moisture hollow bead of porous wall.
Above-mentioned small hollow bead normally is made up of opaque polymer.Certainly, this opaque polymer also can dye.Wherein, painted is to implement dyeing by colouring agent in preparation, and the colouring agent of this colouring agent and transfer layer is compatible.
Particularly advantageous hollow spherulite, its wall thickness: diameter ratio is preferably less than 0.25, and particularly 0.15 or littler.At " pigment and lacquer " the 93rd volume that publish in October, 1987 purposes of this class hollow spherulite in coating of being made up of opaque polymer described.These ball filling air in the coating of drying are to improve its performance of coating.European patent 034715B has described these hollow spherulites and has been advantageously used in the intermediate layer of heat-sensitive paper.Wherein this hollow spherulite provides thermal insulation and elasticity.There is not relevant process relation in this to the present invention, yet the hollow spherulite described in the above-mentioned document can be unrestricted, and is advantageously used in scope of the present invention fully.Particularly, its wall is by styrene resin, acrylic resin, or the styrene-propene acid copolymer resin is formed.Wherein, its preparation method is described (Rohm and Haas company that the holder of patent is the U.S.) in U.S. Pat-A-4427836 and European patent EP 0022633B1.These hollow spherulites are to prepare by special emulsion polymerization reaction method, and its details this paper no longer repeats, because this is not a core of the present invention.The described hollow bead or the hollow spherulite that make by this known method contain moisture in preparation process, under higher temperature, this moisture can wall by hollow bead in formed porous overflow or evaporate.The hollow bead that can buy on market that is applicable to the scope of the invention comprises trade name Ropaque, particularly RopaqueOP-62 (particle diameter is about 0.4 μ m, and wall thickness is about 0.06 μ m), Ropaque HP-91 (the about 1 μ m of particle diameter, the about 0.1m of wall thickness).[all being the commodity of Rohm and Haas company] also has Voncoat, particularly Voncoat PP-1100 (the about 0.55-0.5 μ of particle diameter m, wall thickness is about 0.11-0.12 μ m) [by the sale of Japanese Dainippon company].
End liner in the transition zone of the present invention is made by plastic sheeting, is similar to typewriter typewriter ribbon used end liner usually, for example is made up of polyethylene terephthalate, polypropylene, polyethylene, polyvinyl chloride or Merlon.Fact proved that the paper that is coated with siloxanes also is suitable for use as end liner.Silicon coating can make the transfer layer and the bonding force between the end liner that contain binding agent reduce.It also can be substituted by other antiadhesives, for example polytetrafluoroethylene (PTFE).
The thickness of end liner is about 10-60 μ m, be advisable with 15-55 μ m again, and the thickness of transfer layer is about 5-40 μ m, is advisable with 15-25 μ m again that the thickness of adhesive layer is about 1-8 μ m, is advisable with 2-5 μ m again.For making transition zone optimization of the present invention, bondline thickness elects about 1 as with the ratio of transfer layer thickness: 4-1: 12, and with 1: 8-1: 10 are advisable.
Adhesive layer can be made up of the binding agent of commercialization, and they are the self-adhesive materials with flexible, lasting viscosity of high adhesion.At room temperature, push slightly and bond to immediately on the different surfaces.They are coated on the transfer layer that is positioned end liner preferably with the aqueous liquid dispersion form, and the established like this transfer layer that contains binding agent can be not dissolved again.Preferably acrylate-based binding agent in such binding agent.Raw material can be respectively based on the viscosity solution or the dispersion liquid of rubber, polyacrylate, polyvinylether or polyethylene isobutene.The market polyacrylate base class material that can get preferably.The commodity that are suitable for have Ucecryl 913 and Ucecryl PC80 (being produced by Belgian Dogen bos company), and plastic dispersion liquid VP859/6 (being sold by Freihoff company).The preferred adhesive that will apply, it at first is present in the water-bearing media, and contains wetting agent or surfactant (commodity are called ByKW).The dispersion liquid that is used to form the bonding material of adhesive layer restrains/rice with about 1-5
2, preferred 2-4 gram/rice
2Consumption be coated on the transfer layer.
In order to form the transfer layer that contains binding agent, preferably adopt the thermoplasticity or the thermoelastic polymer of water-soluble aqueous or aqueous dispersion shape.Can select following material for use, so that advantageously reach task proposed by the invention.
A), molecular weight is 15,000-50,000 polyurethane, the Desmolac 2100 that produces of the Permuthane U4924 that produces of Stahl-Chemie company or Bayer AG company for example,
B), molecular weight is 20,000-30,000 straight chain saturated polyester, the Polyflex 46962 that produces of the Vitel PE307 that produces of Good Year tire and rubber company and Morton company for example,
C), styrene-isoprene-styrene copolymer-, the Clariflex TR1107 that produces of Shell-Chemie company for example,
D), acrylate and methacrylate, the Plexigum7H that produces of Roehm GmbH company for example,
E), polyamide, diphenyl acid is improved, the Emerez1533 of the Scope30 of Rhone-Poulenc company and Emery Chemieals company for example,
F), the polymer dispersion liquid of vinyl propionate ester group, the Propiofan 6D of BASF AG for example,
G), the water-soluble polymethacrylates that contains carboxymethyl, for example the Rohagit SD15 of Roehm GmbH company.
Above-mentioned enumerate and not exclusively do not constitute the restriction to selecting yet.Or rather, for those skilled in the art, also can propose other binding agent, in addition, essence of the present invention is not limited to the type of binding agent.
For making the present invention further reach optimization, when selecting to be used to form the binding agent of transfer layer, also should consider used plasticizer.To proofread and correct or topped zone on when using transfer layer, it should not permeate and pass thin usually adhesive layer, and contacts with the existing position that will proofread and correct or dyestuff, produces undesirable coloration to cause transfer layer.For this reason, general plasticizer all is suitable for as siloxanes, castor oil and mineral oil.At the used plasticizer of other field,, be inappropriate as phthalic acid ester or oleyl alcohol.Above-mentioned detrimental effect for fear of plasticizer used under indefinite situation, can in containing the transfer layer of binding agent, mix a kind of so-called " enamelled agent ", it can make the pigment precipitation of immigration and make it insoluble, does not enter coated transfer layer and painted so that it can not move.The enamelled agent that is suitable for comprises tannin and rhodanine derivative.Operable in the ordinary course of things enamelled agent contains ink and printing ink.Its content in containing the transfer layer of binding agent is about 0.5-5% (weight), and is advisable with 1.5-3.5% (weight), preferably 2-2.5% (weight).Find that by adding moisture porous hollow particle, then the amount of plasticizer can reduce widely, under individual cases even can.
In preparation during transition zone of the present invention, the binding agent that is used to constitute transfer layer of selecting changes into the aqueous solution or aqueous dispersions.Can also add following additive when needing in addition.Select solvent or dispersant for use according to the type of used binding agent, certainly, also will be according to forming hollow bead, the constituent material of particularly tiny, flexible moisture hollow bead.Solvent can neither dissolve the wall of hollow bead, can not cause changing in large quantities the moisture that is included in the hollow bead again.So preferably water is as solvent or dispersant.In principle, also can use every other solvent, as long as they can satisfy above-mentioned requirement.Here enumerate the low boiling of alcohols and the organic solvent of mid-boiling point especially, as ethanol, isopropyl alcohol and butanols; Ketone is as acetone and MEK; The ester class, as methyl acetate, ethyl acetate; Aromatic hydrocarbon is as toluene; Aliphatic hydrocarbon is 70-140 ℃ a gasoline as boiling point, can use separately, or mix and use.But, preferably water, or independent the use, or use with lower boiling water-miscible organic solvent.
The concentration of binding agent in solution or dispersion liquid, unimportant to the present invention.Substantially, its concentration is about 3-15% (weight), is advisable with about 6-12% (weight) again.The solution or the applied amount of dispersion liquid on end liner that are used to form transfer layer are about 15-25 gram/rice
2, particularly preferably be about 18-22 gram/rice
2
The transfer layer that contains binding agent can contain colouring agent, and said here " colouring agent " is broad sense, and it relates to all materials that can keep supplying look.Therefore, it comprises dyestuff and pigment, and the latter also has packing property.Being appreciated that the dyestuff of this paper, is water soluble, the colouring agent in organic solvent or the binding agent, and be different with insoluble pigment.Painted can directly presenting.Also can only present by fluorescence, the latter for example is used for fluorescigenic color of sunshine.If transition zone of the present invention is to be used for revising writing with figure etc., the transfer layer that then contains binding agent contains, particularly, and white colorant, titanium white for example, the chalk of precipitation, the silicic acid of alumina or colloid.If transfer layer is painted, then can use inorganic color, as hansa yellow (azo colorants Huang), ochre, iron oxide red as pigment, the iron oxide black, cobalt blue, ultramarine, Berlin blue, or organic toner, as alkali blue, phthalein green grass or young crops, azo dyes is feared quinone and metal-complexing pigment and carbon black.Fluorescent dye comprises: the Blaze Orange T15 of Dayglo company, the Maxilonbrillantflavin 10GFF of Ciba Geigy company, the Dyranin of BayerAG company, and the Basonyl-Rot540 of BASF AG.
Transition zone of the present invention, the control of the best covering effect that particularly contains the transfer layer of binding agent can be undertaken by pigment content.Best pigment content depends on various factor, comprises selected binding agent, the type of the additive that pigment and other mix.But do not stipulate specific critical value or critical range.Substantially, the weight ratio of binding agent and pigment about 1: 1-1: 12, particularly 1: 3-1: 8, and with 1: 4-1: 7 are advisable.
The favourable component of the transfer layer that contains binding agent of transition zone of the present invention is " peelling off agent ".Under action of pulling stress, make transfer layer be applied to that it causes peelling off fully on the matrix.As peelling off agent, can use the soluble cellulose derivative.Particularly preferred cellulose derivative is that those dissolve in the cellulose ether in organic solvent and/or the water, as methylcellulose, and ethyl cellulose, hydroxy ethyl cellulose, ethyl hydroxy ethyl cellulose and carboxy methyl cellulose; Cellulose esters is as cellulose acetobutyrateate and acetyl cellulose propionate.Also can use other the soluble cellulose derivative that reaches required effect.Obviously, be important at soluble cellulose derivative neutral and alkali cellulosic structure, therefore, import as groups such as ethyls, be dissolved in the selected solvent with the cellulose derivative of guaranteeing to form.
The content of peelling off agent that mixes in the transition zone is about 0.5-5% (weight), particularly 1.5-3.5% (weight), and is advisable with 2-2.5% (weight).These data are meant dry.For the formation optimization that makes transfer layer also can be the consideration basis with peelling off likening to of agent and binder amount.Regulation substantially, peelling off agent is about 1 to the content ratio of binding agent: 2-1: 20, with 1: 4-1: 10 are advisable.
In order to control the process of coating, and the characteristic that is added in the transfer layer on the matrix.Also can mix other additive therein.Wherein, can be some preparations that can improve the performance of coating, as alumina silicate; Toner, as carbon black, the enamelled agent of perhaps having mentioned, the particularly basic-dyeable fibre of gallic acid derivative type are as the Printan of Ciba Geigy company production.
The above-mentioned substance of each layering in the transition zone of the present invention all will satisfy basic demand usually.Be that bonding force between adhesive layer and the transfer layer is greater than (bonding force is according to the definition of the adhesive effect power of Dupre formula, press " physics at interface and the chemistry " the 164th page of the K.L.Wolf of Springer Verlag1957 publication) between end liner and the transfer layer.If under individual cases, can not satisfy, then on end liner, must apply the suitable anti stick layer of one deck, so that satisfy above-mentioned basic demand.In this case, also should follow another requirement usually.According to this requirement, concerning other materials that are in contact with it, must be inadherent at the formed transfer layer of base layer.Therefore, the effective application to transition zone of the present invention can indicate following bonding ratio.The ratio that wherein bonds between " S " symbolic representation different material, S
1Be paper/adhesive layer, S
2Be transfer layer/adhesive layer, S
3Be transfer layer/end liner, S
4Be transfer layer/paper, S
5Be adhesive layer/end liner, if all may following ratio must observe: S
1Greater than S
3, S
2Greater than S
3, S
5Compare S
2Much smaller, S
5Less than S
3In addition, be applied to matrix, particularly the Free Surface of the transfer layer of paper should externally not manifest adhesive property as much as possible.Just, S
4Be zero, or level off to zero.Therefore the transfer layer that is applied is inadherent when by hand or paper touch.
In order to reach desired effect, a) and b) hollow bead in two-layer also should keep preferred D-M (Determiner-Measure) construction condition.Wherein, the hollow bead of 1-25% (weight), particularly 5-20% (weight) is preferably arranged in containing the transfer layer of binding agent, and 1-25% (weight) is preferably arranged in adhesive layer, particularly the hollow bead of 5-20% (weight).In this percentage by weight numerical value, do not consider possible water content.
The present invention carries out technical being described as follows to above-mentioned feature and relevant effect thereof.
Above-mentioned hollow bead, particularly moisture porous hollow spherolite, be incorporated in the adhesive layer, this has guaranteed when reusing transition zone, and the initial adhesion of the adhesive layer that reduces because of " parching " is owing to the water-soluble alcohol that has also mixed solid increases, wherein by pushing slightly, enough moisture can pass the fine porous wall of hollow spherulite and flow out, and makes solid alcohol moistening, thereby has got rid of the caking property loss that may exist.In order to reach above-mentioned advantage, when preparation transition zone of the present invention, as fine hollow bead, flexible, porous wall is arranged, the moisture hollow bead of preferential employing, dispersant in the plastic dispersion liquid and the moisture in the aqueous liquid dispersion evaporate under this gentle operating condition, and this gentle condition will make in the most of reservation of the moisture of hollow bead internal memory.This target is not to want whole water all to stay in the hollow spherulite, but must guarantee after preparation process finishes, the left at least moisture of q.s down in hollow spherulite.Wherein existing solid alcohol guarantees that the moisture that flows out from the microporosity wall is owing to the moisture pick-up properties of solid alcohol has to a certain degree preservation.Particularly, when adhesive tape of the present invention was used in manual adhesive tape spool, " water-storage reservoir " in the adhesive layer kept.This respect will be described in further detail below.
When using the transition zone of the present invention of relevant solid alcohol and porous hollow bead, above-mentioned mechanism also is applicable to the function of the transfer layer of transition zone of the present invention in the corresponding way.Here owing to exert pressure, moisture sees through the micro-pore wall of hollow bead and extrudes, and the result makes solid alcohol to I haven't seen you for ages solubilize, or dissolves under individual cases.In this case, this solid alcohol can cause that the transfer layer that contains binding agent is provisional softening, so that it becomes flexible more when using this layer, therefore micro-crack can not occur.When disappearing when exerting pressure, although the moisture pick-up properties of solid alcohol, the moisture that extrudes from hollow bead is evaporated to a certain degree, solidifies again to cause it, and it is provisional softening to disappear.
As if the porous hollow bead in transfer layer also have other advantage.The fact shows, when the amount that increases hollow bead, perhaps because the hydrophobic property of the wall of hollow bead has just suppressed to be modified " penetrating (the Durcbbluten) " phenomenon of writing.This conforms with the effect of people's hope, can realize in the weight percentage ranges with the hollow bead of above-mentioned the best.In addition, the amount of hollow bead increases masking ability, reduce the valuable Chinese white that exists with the titanium dioxide form thus, above-mentioned hollow bead minimum, and unusual granule size has stoped granules of pigments, particularly titanium dioxide granule bonds together, so that, in transfer layer, can not produce inhomogeneities.This inhomogeneities tends to cause the generation of micro-crack when using transition zone.Therefore, cover layer presents improved elasticity, and this also suppresses the generation of fine fisssure.
When using transition zone of the present invention, it is favourable using coating tool, and it can roll out the transfer layer that binding agent is housed, and pulls end liner simultaneously.This use that guarantees transition zone of the present invention is simple especially.Can use the hand-operated tools that has on the market.The hand-operated tools of particularly suitable is so-called " manually rolling the volume device ", wherein an enclosure that is easy to the form that fastens, a feed reel that transition zone is housed is arranged.Transition zone comes out from feed reel, and guiding is by on the outstanding coating base of shell, and returns the take-up reel in the shell thus again.Place the suitable gear unit between above-mentioned two reels in the box cover, guarantee that transition zone is under the enough tension force all the time.When using transition zone, the user grasps the box cover, by being coated with cover base, pushes the substrate that (discerptible) belt applies facing to necessity outside its edge, (for example on the printing sheets that will revise).When pushing, the user can move above-mentioned instrument with respect to substrate, and carries out jump routine and transfer in the substrate as covering layer or fluorescence coating, and wherein Rou Xing substrate rolls out and around to take-up reel from feed reel.
Obviously, the ratio of the bonding force pointed out above must will keeping of the mode of action of above-mentioned hand-operated tools.Just, bonding force must be less than the bonding force that contains between binding agent transfer layer and the adhesive layer between adhesive layer and the substrate layer, and less than the bonding force that contains between binding agent transfer layer and the substrate.
Transition zone of the present invention is particularly suitable for being used as writing, symbol and the pattern that coating film transfer tool is wrongly write with correction in office, school and the family, so that write again.Another purposes of transition zone is can make tangible colored token to text, literal and/or symbol.For this reason, this transition zone has the colorant of containing transfer layer.Other purposes comprise makes distinguishing mark to literal paragraph, symbol or figure.For this reason, this transfer layer is preferably transparent, and is used in the dye coloring that can send fluorescence under the sight.In a word, the application example that reaches described here shows advantageously that all above-mentioned application is all carried out at " under the drying condition ".That is to say, be provided with and form stain that liquid coating caused and the evaporation that does not produce hazardous solvent, and can rewrite immediately.Adopt transition zone of the present invention, just can be easily, rapidly and equably coating, particularly contain colorant coating, be coated in the basic unit.When the transfer layer of transition zone of the present invention is transparent, just do not contain when covering up colorant, then it can be used as the protective finish of no colorant effect just, so that protection is to responsive writings of effect such as atmosphere.
The operating characteristic of transition zone of the present invention has been done improvement widely.For example, when long-time storage, this adhesive layer parches widely.Yet, owing to contain above-mentioned hollow bead, and at least can be moistening slightly, so just can improve its adhesive property.Owing in transfer layer, contain solid alcohol, its bonding force is reduced, and improved its avulsion performance, this produces by interim emollescence.Yet it is disadvantageous adding a large amount of plasticizer, as mentioned above, because it will soften coating enduringly.In addition, it also can produce and make the writing of coating undesirable seepage occur, oozes out phenomenon even.At last, writing then with ink on this transfer layer, ink can produce stain.In addition, use fine, flexible, aqueous particulate, just can guarantee when using expensive colorant, particularly during titanium dioxide, the addition of reduction colorant.
Be described in more detail the present invention with the following example.
Embodiment 1(embodiment of transfer layer)
Prepare following aqueous dispersion and contain the transfer layer of pigment with formation,
Moisture acrylate dispersion liquid is (at 23.42 weight portions
In the water 25%, hamburger city, Worlee
The product of Chemie GrmbH company
Worleecryl
7712W)
Lactimon
WS (alkane 0.8 weight portion of poly-carbonic acid
Base ammonium salt and polysiloxane copolymer)
Butoxy ethanol 1.5 weight portions
Byk
-0.34 (hydrophobic 0.2 weight portion in inorganic oil
Property class silicone composition)
Byk
-307 (polyether-modified dimethyl
Polysiloxane copolymer) 0.02 weight portion
Sorbierite 5.00 weight portions
Silicic acid 4.00 weight portions
Titanium dioxide 35.00 weight portions
Ivory black 0.06 weight portion
Aqueous dispersion 30.00 weight portions of tiny hollow ball
100.00 weight portion
Being prepared as follows of the dispersion liquid of above-mentioned moisture hollow bead:
The U.S. Philadelphia of 800 weight deals, the product Ropaque that Rohm and Haas company produce
-emulsion OP-62LOE (is that the non-film forming polymer of 8.0-8.7 is formed (particle diameter is 0.4 μ m, and internal diameter is 0.28 μ m) by the pH value of 52% effective solids content and 37.5% actual solids content) and 176 weight parts waters and the anti-additive foam (Byk of 2 weight portions
-034) (hydrophobicity in mineral oil contains the silicone composition), and 22 weight portion formic acid solutions (mix and produce) fusion mutually by the dense formic acid of 100 weight portions and 900 weight portion water gagings.Dispersion liquid 30 weight portions of this acidifying are used for above-mentioned prescription.
With squeegee this material of coating, with 18 gram/rice
2Consumption be coated on the paper gasket with siliconeization.By the warm air that feeds moisture is evaporated under 80 ℃ of temperature.
Then, the aqueous dispersion of forming by following material, be coated in squeegee on the surface of coating of pigment.
Acrylate-based adhesives (Freihoff 57.3 weight portions
The plastic dispersion liquid VP859/6 of company)
(acrylate base co-polymer)
Water 41.1 weight portions
Ammoniacal liquor 1.6 weight portions
100.00 weight portion
With squeegee binder substance with 3 gram/rice
2Thickness coating.Then, under 80 ℃ of temperature, bubbling air is to evaporate the moisture in this binder substance.At this moment, the moisture in the hollow spherulite in the transfer layer still is retained in wherein.
The transition zone of above-mentioned gained, being specially adapted to coat writes on literal on the paper, and it can apply a cover tape rapidly equably, can write again immediately on this is with.Wherein, coating is to carry out with the volume instrument that manually rolls that can buy on the market.Writing of newly applying is very clear, does not find that in microscopically observation stain is arranged on the limit.
Embodiment 2(embodiment of transfer layer)
Prepare following aqueous dispersion and contain the transfer layer of pigment with formation,
Moisture acrylate dispersion liquid 20.42 weight portions
(in water 25%, hamburger city Worlee Chemie
The product Worleecryl of GmbH company
7712W)
Lactimon
WS (alkylammonium salt and the polysiloxane copolymer of poly-carbonic acid) 0.8 weight portion
Butoxy ethanol 1.5 weight portions
Byk
-034 (the hydrophobicity class silicone composition in inorganic oil) 0.2 weight portion
Byk
-037 (the dimethyl polysiloxane copolymer of polyethers sex change) 0.02 weight portion
Sorbierite 8.00 weight portions
Silicic acid 4.00 weight portions
Titanium dioxide 35.00 weight portions
Ivory black 0.06 weight portion
Aqueous dispersion 30.00 weight portions in the thin hollow spherulite
100.00 weight portion
Use this dispersion liquid with example 1 the same manner, it is applicable to the preparation adhesive phase similarly.
Embodiment 3: (embodiment of adhesive layer)
Prepare following aqueous dispersion and contain the transfer layer of pigment with formation,
Preparation-the embodiment 1 of adhesive layer
Water 16.1 weight portions
Acrylate-based adhesives (50%) 57.3 weight portion
(the plasticity dispersion liquid Vp859/6 of Freihoff company)
Ammoniacal liquor 1.6 weight portions
Sorbierite 10.0 weight portions
Ropaque
OP-62LO-E (37.5%) 15.0 weight portion
100.00 weight portion
According to example 1 preparation adhesive phase
Embodiment 4(embodiment of adhesive layer)
Prepare following aqueous dispersion contains pigment with formation transfer layer.
Adhesive preparation-embodiment 2
Water 21.1 weight portions
Acrylate-based adhesives (50%) 57.3 weight portion
(the plastic dispersion liquid Vp859/6 of Freihoff company)
Ammoniacal liquor 1.6 weight portions
Sorbierite 5.0 weight portions
Ropaque
OP-62LO-E (37.5%) 15.0 weight portion
100.00 weight portion
Be prepared adhesive layer according to example 1.
Claims (10)
1. the multilayer that has an end liner and an adhesive phase, flexible transition zone, wherein, a transfer layer that contains binding agent is arranged between end liner and adhesive phase, the latter is bonding than its bonding stronger to end liner to adhesive phase, it is characterized in that, a) contain the transfer layer and/or the b of binding agent) adhesive layer contains tiny hollow bead and water miscible solid alcohol.
2. according to the transition zone of claim 1, it is characterized in that tiny hollow bead is flexibility, has porous wall, and is moisture, hollow bead.
3. according to the transition zone of claim 1 or 2, it is characterized in that the particle diameter of the hollow bead in containing the transfer layer of binding agent is 0.3-10 μ m, and the particle diameter of the hollow bead in adhesive layer is 0.3-2 μ m.
4. according to transition zone arbitrary among the claim 1-3, it is characterized in that the spatial volume of hollow bead is about 20-55%, particularly 25-40%.
5. according to transition zone arbitrary among the claim 1-4, it is characterized in that, contain the water miscible solid alcohol of the 3-25% that has an appointment (weight) in the above-mentioned transfer layer that contains binding agent.
6. according to the transition zone of claim 4, it is characterized in that, contain the hollow bead of 1-25% (weight) in the above-mentioned transfer layer that contains binding agent.
7. according to the transition zone of claim 4, it is characterized in that, in adhesive layer, contain the hollow bead of 1-25% (weight).
8. require arbitrary transition zone according to aforesaid right, it is characterized in that, contain the water-soluble solid alcohol of 1-40% (weight) in this adhesive layer.
9. according at least one multilayer among the claim 1-8, the preparation method of flexible transition zone, it is characterized in that, the plastic dispersion liquid that will contain colorant with conventional coated technique is coated with on the end liner that is added to a flexibility, and dispersant evaporates, then, the aqueous liquid dispersion that applying method will contain binding agent that is coated with routine spreads on above-mentioned established transfer layer, then, evaporate moisture wherein, wherein
A), the plastic dispersion liquid that contains colorant has water miscible solid alcohol and tiny hollow bead, and/or
B), the aqueous liquid dispersion that contains binding agent has water miscible solid alcohol and tiny hollow bead.
10. according to transition zone arbitrary among the claim 1-8, in the hand-operated tools to roll the application of roll form, wherein, adhesive phase to the cohesive of end liner less than the cohesive that contains between binding agent transfer layer and the adhesive phase, and less than the cohesive that contains between binding agent transfer layer and the end liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96192501 CN1178502A (en) | 1995-03-14 | 1996-02-23 | Multi-layer, flexible transfer strip, process for its production and its use in hand device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19509124.8 | 1995-03-14 | ||
| CN 96192501 CN1178502A (en) | 1995-03-14 | 1996-02-23 | Multi-layer, flexible transfer strip, process for its production and its use in hand device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1178502A true CN1178502A (en) | 1998-04-08 |
Family
ID=5128312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96192501 Pending CN1178502A (en) | 1995-03-14 | 1996-02-23 | Multi-layer, flexible transfer strip, process for its production and its use in hand device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1178502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372694C (en) * | 1999-06-02 | 2008-03-05 | 广州宏昌胶粘带厂 | Error-correcting tape |
-
1996
- 1996-02-23 CN CN 96192501 patent/CN1178502A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372694C (en) * | 1999-06-02 | 2008-03-05 | 广州宏昌胶粘带厂 | Error-correcting tape |
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