CN1208205C - Image recording medium - Google Patents
Image recording medium Download PDFInfo
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- CN1208205C CN1208205C CNB018106943A CN01810694A CN1208205C CN 1208205 C CN1208205 C CN 1208205C CN B018106943 A CNB018106943 A CN B018106943A CN 01810694 A CN01810694 A CN 01810694A CN 1208205 C CN1208205 C CN 1208205C
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- image
- ink
- bonding coat
- recording medium
- carrier
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
- B41M5/508—Supports
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F2003/023—Adhesive
- G09F2003/0236—Permeability
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
- Duplication Or Marking (AREA)
- Ink Jet (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Holo Graphy (AREA)
- Photographic Developing Apparatuses (AREA)
- Laminated Bodies (AREA)
Abstract
An image recording medium comprising a support having two major surfaces, an ink-receptive layer disposed on the first major surface of said support, and an adhesive layer disposed on the second major surface of said support, wherein the support is a porous body having gas permeable fine pores, a plurality of grooves capable of communicating with the exterior upon contacting with an adherend are provided on the adhering surface of said adhesive layer, the adhering surface being a surface opposite the surface contacting with the support and put into contact with the adherend, and said grooves are formed to satisfy the relationship between the depth D (mu m) measured from the adhering surface and the thickness T (mu m) of the adhesive layer, represented by the following formula: 0<= T-D <= 10, provided that D >= 16 mu m.
Description
Technical field
The present invention relates to the print process recording ink image of available ink jet printing method and so on and be the image-recording medium that adheres to towards the state of adherend with the printing ink image of record in use.Specifically, when the present invention relates to use, can effectively prevent to take place the image-recording medium of swelling during particularly outdoor use owing to the edge infiltration.
Background technology
Ink jet printing method has been well-known technology now.In recent years, the printing machine that is used for printing the large-scale image of wide cut has become commodity, therefore can print large-scale goods, draws as colour advertisement.Drawn among Fig. 1 and be used for the conventional image-recording medium of ink-vapor recording.This image-recording medium 11 comprises carrier 12, places ink-receiver layer 13 and the bonding coat 14 that places on another first type surface of described carrier (normally rear surface) on first type surface of described carrier (normally front surface).On above-mentioned ink-receiver layer, form printed layers 15 by printing, form the last laminate film 18 that comprises pressure-sensitive adhesive layer 16 and transparent membrane 17 then in the above, be used for protecting printed layers.Above-noted this sheet material of printing ink image could be adhered on adherend such as billboard, sign board or the car body.
Therefore, in many cases, the broad width ink jet recording sheet is used for the open air.Yet the problem of conventional inkjet receptive media is as time goes by, and it is unintelligible that image can become, and for example fades or the change of image quality.In order to improve in these ink jet image recording mediums the permanance of image on the printed layers, prevent to become unsharp image, various image-recording mediums were once proposed.
A kind of like this image-recording medium is disclosed among open (Kohyo) No.10-505800 of Japanese uncensored national patent.This disclosed image-recording medium comprises substrate, the ink-receiver layer that contacts with this substrate front surface and places bonding coat on this substrate rear surface.Above-mentioned ink-receiver layer comprises that at least one protectiveness pervious course with predetermined composition and at least one have the image receiving layer (printing ink fixed bed) of another kind of predetermined composition.Above-mentioned protectiveness pervious course and image receiving layer comprise particle dispersion respectively, as the cornstarch of cornstarch or modification.For base material, for example can use the porous membrane that comprises many ventilative micropores.This perforated membrane helps use printing ink and prints.This patent disclosure has yet disclosed to print on the ink-receiver layer surface and has formed image, covers the technology that goes up protective clear layer then.Object lesson as above-mentioned perforated membrane has disclosed Teslin
TMFilm, the porous stretched resin molding that PPG Industry K.K. produces.
For example in the open WO99/03685 of international monopoly, also disclosed the purposes of this perforated membrane as carrier.In this patent disclosure, in the ventilative micropore of porous membrane support, comprise surfactant and multivalent metal salt.By using surfactant to make carrier micropore inwall (inside surface) be water wettability, and the solution that coating contains multivalent salts in the above, and multivalent salts is fixed in the micropore.In this case, it is carrier surface that printing ink is accepted the surface, and printing-ink is fixed on this carrier surface, recording picture.Multivalent metal salt is used as set accelerator, and the effect that improves printing ink image water tolerance is arranged.
United States Patent (USP) 5,605,750 disclose a kind of printing ink image-recording medium, wherein use to be dispersed with the porous carrier of water-insoluble filler particles (as silicon dioxide), and the image receiving layer that will contain the false boehmite of porous are put on the surface of this porous carrier.On this medium,, can easily form the high image of coloring by means of the ink-receiver layer on the carrier.
Ink-receiver layer on the above-mentioned carrier also can be the layer that contains polymkeric substance.In this case, above-mentioned receiving layer for example is the layer that contains polymkeric substance and inorganic pigment.Inorganic pigment is used for making ink-receiver layer to have poriness, and uses formulated with insoluble particles usually, as porous synthetic silica and alumina hydrosol.Above-mentioned resin for example is water miscible polymkeric substance or cation-modified polymkeric substance (as polyurethane).Specifically, cation-modified polymkeric substance can improve the printing ink anchorage and be convenient to form coloring and the high image of water tolerance, and this all is useful.
Therefore, in order to improve coloring, image quality and the water tolerance of image, need except that being provided, porous carrier also provide ink-receiver layer with predetermined composition.In addition, for drying (fast doing) performance that improves printing ink, just need not damage the gas penetration potential of ink-receiver layer, i.e. poriness.Yet even improved the poriness of ink-receiver layer as much as possible, the colouring component in the printing ink, particularly pigment can be moved in the hole in ink-receiver layer or the carrier, and the drying property after the printing can reduce as a result.
Used bonding coat is that bonding film is identical with common bonding sheet in the conventional image-recording medium, and what people still do not know to have be exclusively used in the bonding coat of image-recording medium especially.Used bonding coat roughly can be divided into two classes in the conventional bonding sheet: the smooth basically bonding coat of (1) its adhesive surface is formed with the bonding coat of coarse structure on (2) its adhesive surface.In above-mentioned (2), can on adhesive surface, form coarse structure effectively with the known method that discloses among registration utility model 2,587,198, the open WO 93/05123 of international monopoly and Japanese uncensored patent disclosure (Kokai) 11-209704.
Summary of the invention
As mentioned above, be exclusively used in bonding coat the unknown so far of image-recording medium.Yet have now found that there is a distinctive problem in the image-recording medium with the porous carrier that comprises ventilative micropore, has promptly reduced on-the-spot water tolerance, look the bonding coat situation selected for use and different.In image-recording medium, there is laminated interface between carrier and the bonding coat or between ink-receiver layer and the protective seam.In this image-recording medium, water can be invaded laminated interface by the edge of medium during use, and has found to stay water on the interface and can make the inner swelling that takes place of medium, and the result has damaged outward appearance.This can effectively preventing is called on-the-spot water tolerance owing to the character of the residual open defect that causes of water.
When the medium of the image that the print process and the water color ink that have with ink jet printing and so on are write down pastes on the adherend of outdoor sign board and so on, protective seam is set, for example laminated in the above layer of transparent film in order to protect image on image.In addition, also carry out the edge encapsulation process usually, intake to prevent edge (the normally edge of porous carrier) infiltration, thereby prevent that image is bad by damage by water by image-recording medium.The edge encapsulation process is solidified and is carried out by pasting pressure-sensitive adhesive tape or applying liquid resin.
If do not carry out the edge encapsulation process, then the water capacity is easily infiltrated from the edge of carrier, and the interface of oozing another layer that moves on to and be adjacent to carrier.This water can be further oozes the interface that moves on between another layer and adjacent the 3rd layer by above-mentioned interface.On the other hand, if protective seam is set as stated above, the water of infiltration can not be accepted the surface from printing ink easily and overflow.Therefore, if be provided with protective seam, comparatively a large amount of water may be stayed in the medium.If the evaporation of residual water, the interior voltage rise height in the medium produces above-mentioned swelling.This swelling notified occur between bonding coat and the carrier, printing ink is accepted between surface and the protective seam or on the interface between adherend and the bonding coat.
Therefore, in order to address these problems, the purpose of this invention is to provide the image-recording medium that comprises the porous carrier, ink-receiver layer and the bonding coat that contain ventilative micropore, by selecting bonding coat effectively, can improve on-the-spot water tolerance, even and do not carry out the edge encapsulation process, also can prevent effectively in use owing to there being water to infiltrate the open defect that causes from medium edge.
More particularly, the objective of the invention is to reach with the image-recording medium that comprises following assembly:
Carrier with two first type surfaces,
Place the ink-receiver layer on described carrier first first type surface,
Place the bonding coat on described carrier second first type surface;
It is characterized in that described carrier is the porous body that comprises ventilative micropore,
Many and the groove that can be in communication with the outside after adherend contacts are being arranged on the adhesive surface of described bonding coat, and described adhesive surface is the surperficial opposing and surface that contact with adherend that contacts with described carrier,
What described groove satisfied that following formula represents works the depth D (micron) that records and the relation between the bondline thickness T (micron) by adhesive surface:
0.5≤T-D≤5.5, prerequisite are D 〉=16 micron.
Description of drawings
Fig. 1 is the schematic sectional view that shows the conventional image-recording medium structure that is used for ink-vapor recording.
Fig. 2 is the schematic sectional view that shows image-recording medium structure of the present invention.
Fig. 3 is the part amplification sectional view of image-recording medium bonding coat of the present invention.
Description of reference numerals
11,20 ... image-recording medium
12,21 ... carrier
13,22 ... ink-receiver layer
14,23 ... bonding coat
15 ... printed layers
16 ... pressure-sensitive adhesive layer
17 ... hyaline membrane
18 ... last laminate film
24 ... release liner
25 ... adhesive surface.
Embodiment
An embodiment of image-recording medium of the present invention is illustrated among Fig. 2.Image-recording medium 20 of the present invention by carrier 21 with two first type surfaces, place the ink-receiver layer 22 on above-mentioned carrier first first type surface and place the bonding coat 23 on above-mentioned carrier second first type surface to constitute.Bonding coat 23 can be stripped from lining 24 and be covered.
This carrier has gas penetration potential owing to comprising ventilative micropore.The air penetrability of representing with the Gurley air penetrability is generally 10-3000 second/100 milliliter, is preferably 50-2500 second/100 milliliter, more preferably 100-2000 second/100 milliliter.Used Gurley air penetrability is to measure with the ventilative tester of Gurley by JIS P-8117-1980, is by 100 milliliters of time values that air is required.The porosity of this porous membrane (volume that the space occupies in whole film volume) is generally 10-90 volume %, is preferably 20-80 volume %.Be generally the 0.01-3 micron by the pore diameter that records along thick section direction (horizontal direction of oriented film) perpendicular cuts, be preferably the 0.02-2 micron, more preferably the 0.03-1 micron.
The gross thickness of carrier is the 30-500 micron, is preferably the 50-300 micron.If thickness is too little, then ink setting reduction, if but thickness is too big, and then this recording medium has the problem of navigability aspect.
The more handy surfactant of carrier surface and micropore makes it be water wettability, so that improve the quick-drying of printing-ink image effectively.Can use negative ion, kation, both sexes and non-ionic surfactant.Operable examples of anionic surfactants comprises carboxylate surfactant, sulfonate surfactant and phosphate-type surfactant.The example of operable cationic surfactant comprises amine salt type surfactant and quaternary amine type surfactant.The example of operable amphoteric surfactant comprises betaine type amphoteric surfactant and sulfobetaines type surfactant.The example of operable non-ionic surfactant comprises polyoxy olefin type surfactant (as polyglycol), the dehydration pure type surfactant of sorb (sugar) and the pure type surfactant of sorb (sugar).
In the coating solution that forms ink-receiver layer, add surfactant, then this coating solution is coated on the carrier surface, just can when forming ink-receiver layer, carry out hydrophilicity-imparting treatment.This hydrophilicity-imparting treatment also can be carried out before forming receiving layer.Specifically, the liquid that will contain surfactant is coated on the carrier surface or with this liquid infiltration carrier, carries out hydrophilicity-imparting treatment, and the liquid that better will contain polymkeric substance and set accelerator then is coated on the carrier surface of own hydrophiling, forms ink-receiver layer.In this way, can easily make and have drip-dry image-recording medium.
When the liquid that contains surfactant by coating when drying is carried out hydrophilicity-imparting treatment then, should make water and alcohols such as ethanol as solvent.Contain in the liquid of surfactant, surfactant concentrations is generally 1-30% (weight), is preferably 5-25% (weight).Any suitable apparatus for coating be can use, conventional coating machine such as scraping strip coating machine, knife type coater, roll coater and die coater comprised.
If desired, porous membrane can also contain inorganic fine powder.The example of operable inorganic fine powder comprises lime carbonate, aluminium oxide, calcined clay, silicon dioxide (comprising amorphous silica), zeyssatite, talcum, titania and barium sulphate.The particle diameter of fine powder is generally the 0.3-10 micron, is preferably the 0.8-5 micron.In addition, can sneak into other adjuvant such as thermal stabilizer, ultraviolet absorber, spreading agent, antistatic agent, antioxidant and oil (as mineral oil).
The ink-receiver layer 22 of recording medium of the present invention better contains organic polymer and set accelerator, comprises the salt of water-soluble organic or inorganic acid.This set accelerator can make lip-deep colouring component of ink-receiver layer such as pigment condense rapidly.Therefore, can prevent effectively that the material of pigment and so on from oozing in the hole that moves on in the medium, thereby improve its quick-drying.Owing to except that containing set accelerator, also contain organic polymer, improve the water tolerance that anchors at lip-deep printing ink image so the adhesive effect of above-mentioned blood coagulation enhancing effect and polymkeric substance can be worked in coordination with effectively.
Polymkeric substance in ink-receiver layer is to have in the molecule under the situation of polar polymer of polar functional group, and the synergy of set accelerator and polar polymer can improve the coagulation of water color ink effectively.The suitable example of polar polymer comprises alkaline polymer, as cation-modified polyurethane and polyvinyl pyrrolidone.
Except that above-mentioned cation-modified polyurethane etc., the example of available organic polymer also comprises the polyurethane of polyolefin, Polyvinylchloride, polyvinylidene chloride, polystyrene, styrene-butadiene-acrylonitrile copolymer, polyamide, acrylate copolymer, polyester and routine (unmodified).
As the organic or inorganic hydrochlorate, multivalent metal salt is preferred, because they have higher blood coagulation enhancing effect, and can provide the excellent effect that improves quick-drying and set printing ink image water tolerance simultaneously.The example of multivalent metal salt comprises the salt of aluminium, gallium, titanium, zirconium, hafnium, zinc, magnesium, calcium, niobium, tantalum, iron, copper, tin and cobalt.These slaines can use separately or two or more are used in combination.
The suitable example of mineral acid comprises sulfuric acid, nitric acid and hydrochloric acid.At organic polymer is that inorganic acid salt is more suitable for than acylate, because can improve quick-drying and water tolerance effectively under the situation of cation-modified polymkeric substance such as cation-modified polyurethane.Preferred inorganic acid salt is an aluminium sulphate.Though do not specify this reason, can think that it is the cause that effectively improves the set ability that the cation group of polymkeric substance and sulfate ion and aluminium ion interact.
Available organic acid suitable example comprises aromatic acid, as carboxylic acid, sulfonic acid, sulfo group carboxylic acid, hydroxyl sulfo group carboxylic acid and hydroxyl carboxylic acid.These acid can use separately or two or more are used in combination.
The content of set accelerator in the ink-receiver layer by 100 weight portion organic polymers, is generally the 1-70 weight portion, is preferably the 3-50 weight portion, preferably the 5-30 weight portion.If the set accelerator amount very little, the printing ink pull-out capacity descends, and water tolerance or coloring can variation.And if the amount of being somebody's turn to do is too many, the printing ink image blurring can take place.
If desired, also can comprise inorganic fine powder in the ink-receiver layer, in order that improve porosity.Available inorganic fine powder example comprises lime carbonate, aluminium oxide, calcined clay, silicon dioxide (comprising amorphous silica), zeyssatite, talcum, titania and barium sulphate.The particle diameter of fine powder is generally the 0.3-10 micron, is preferably the 0.8-5 micron.In addition, can also sneak into other adjuvant such as thermal stabilizer, ultraviolet absorber, spreading agent, antistatic agent and antioxidant.
Only otherwise damage effect of the present invention, the thickness to ink-receiver layer does not have any restriction.Thickness is more greatly favourable, because can prevent the printing ink image blurring.For this reason, the thickness of ink-receiver layer is generally the 5-200 micron, is preferably the 10-100 micron.
Ink-receiver layer for example can contain the liquid of set accelerator and organic polymer by coating, and drying forms then.In this case, should make water and alcohols as solvent.Apparatus for coating can use conventional coating machine such as scraping strip coating machine, knife type coater, roll coater and die coater.
When water miscible salt ion, can improve its blood coagulation enhancing effect effectively.Therefore, the printing ink that is coated on the image-recording medium surface (ink-receiver layer) better is the printing ink that contains water, i.e. water color ink.Term used herein " water miscible salt " is meant that this salt can react with water, produces the ionization seed.The solubleness of calculating by the amount that is dissolved in 20 ℃ of water of 100 grams is generally the 0.001-100 gram, is preferably the 0.01-90 gram, more preferably the 0.1-80 gram.
As mentioned above, bonding coat 23 its with adhesive surface that adherend contacts on have the coarse structure that comprises many grooves.These grooves are in communication with the outside when contacting with adherend, and predetermined size is respectively arranged.What these grooves satisfied that following formula represents works the depth D (micron) that records and the relation between the bondline thickness T (micron) by adhesive surface:
0.5≤T-D≤5.5, prerequisite are D 〉=16 micron.
If the degree of depth of groove is more than or equal to 16 microns, will between groove and adherend (adhesive surface), form the passage that is connected with the external world, and when using these passages effectively, can prevent that the water that infiltrates medium inside from the porous carrier edge from remaining in the medium, and allow it to the external world overflow modes such as () evaporations.If the degree of depth of groove, then can not reach the effect that water is effectively overflowed less than 16 microns.And when if the thickness of bonding coat is too big with respect to the degree of depth of groove, above-mentioned effect will reduce.
If poor (the difference in size T-D) of the degree of depth of bondline thickness and groove is above 10 microns, the thickness (this thickness is corresponding to the distance between bottom land and the carrier) of counting the bonding coat part from bottom land increases, and the influence of temperature and time (promptly because) as time goes by, can deform, thereby stop up these grooves, and the degree of depth of groove is reduced rapidly.As a result, the degree of depth of groove becomes less than predetermined value, the water of just can not overflowing effectively.Referring to Fig. 3, can know and see, bondline thickness T be adhesive surface 25 and and carrier 21 opposing surfaces between size on the thickness direction.Carry one in passing, adhesive surface 25 normally forms the top surface of the bossing of above-mentioned groove, and the depth D of groove is the distance (length) of the bottom of groove to the top surface of defining slot bossing.
The size of coarse structure can have some errors.In this case, the size of all coarse structures should be in given range.Yet more than more than 80%, better coarse structure more than 90% can satisfy given size restrictions.For this scale error of quantitative measurement, with apparatus measures 25-50 the bossing and the groove of microscope and so on.
On the other hand, if the degree of depth of groove is too big, the uneven surface of bonding coat can be adhered to the surperficial upper process of adherend and damage outward appearance from image-recording medium.Angle thus, the degree of depth of groove is preferably the 17-26 micron, is preferably the 18-24 micron.
As long as can reach above-mentioned effect, the thickness T of bonding coat is just enough, should be generally the 20-40 micron.If bonding coat is too thick, the water of just can not overflowing effectively, residual water generates can swelling.And if bonding coat is too thin, water may be stayed than (and the opposing direction of bonding coat) (between routine printing ink image and protective seam) on the interface on the surperficial more upper strata of printing ink acceptance of carrier, but these also can be different and different with the degree of difference in size T-D.Though do not want to be bound by any theory, above-mentioned phenomenon can be thought owing to following reason takes place.
In constituting each layer (not including carrier) of image-recording medium, the softest layer promptly normally contains the bonding coat of sticky polymers near the layer of liquid (liquid form).Contain at the sticky polymers layer under the situation of pressure-sensitive adhesion polymkeric substance, this layer is soft especially.Soft material generally is easy to absorption fluids (gas or liquid).Therefore, when the large usage quantity of sticky polymers, the easier absorption water of bonding coat itself, and water moves than moving and can control more easily towards oozing of carrier ink-receiver layer towards oozing of last direction.In other words, if bonding coat is too thin, staying the water yield of accepting on the last bed interface, surface than carrier printing ink can increase.Angle is seen thus, and the thickness T of bonding coat is preferably the 21-30 micron, more preferably the 22-27 micron.For the uneven surface of not obvious demonstration bonding coat from the dielectric surface observation of bonding back the time, the thickness T of bonding coat should be more than or equal to 21 microns, better more than or equal to 22 microns.
After considering these factors, can determine the OK range of difference in size T-D.That is, difference in size T-D is preferably the 1-9 micron, more preferably the 2-7 micron.
After this image recording media was adhered on the adherend, the coarse structure on the bonding coat can be out of shape hardly.For example, if bonding coat contains cross-linked polymer, bonding agent is out of shape hardly.If it deforms, be out of shape 10% at the most.Yet, consider this distortion, with the dimension definitions of coarse structure the size that records before image-recording medium pastes on the adherend.In other words, if the size of coarse structure in above-mentioned scope, even coarse structure in use deforms, can not damaged effect of the present invention yet.
The formation method of coarse structure on the bonding coat, can be with bonding coat be stacked in have on the surface with the bonding coat adhesive surface on the coarse structure that forms be negative and answer on the lining of structure.An example that forms the coarse structure method on adhesive surface is described below.The bonding coat that will contain the pressure-sensitive adhesion polymkeric substance and have a flat adhesive surface is fixed on the back of the body surface of carrier.On the adhesive surface of this bonding coat, have the lining of predetermined coarse structure on the impression, the coarse structure of liner surface (negative structure) is transferred on the above-mentioned adhesive surface, so just on adhesive surface, formed the coarse structure of being scheduled to.
Bonding coat contains the pressure-sensitive adhesion polymkeric substance usually, when therefore pasting on the adherend after peeling off the lining of impression, can keep coarse structure at once.Therefore, when bonding sheet pastes on the adherend, can prevent the bonding coat good bond, thereby be convenient to peel off again, be clipped in bubble between adherend and the bonding coat with adjusting position or effusion.Bonding coat applies preferably that the composition that contains pressure-sensitive adhesion polymkeric substance and crosslinking chemical forms.
Bonding sheet also can form with the following method, promptly applies the composition that contains the pressure-sensitive adhesion polymkeric substance having on the release liner surface of negative coarse structure, forms bonding coat, and is then that the lining on this bonding coat and the carrier is superimposed and interfix.When the bonding sheet of such formation is peelled off lining, will form adhesive surface with the positive coarse structure that produces by the negative structure of transfer printing lining.In the bonding coat that forms in this way, crosslinked pressure-sensitive adhesion polymkeric substance keeps given surface roughness, thereby has prevented the distortion of this coarse structure effectively, has also just improved on-the-spot water tolerance.
In the size of the coarse structure that forms on adhesive surface, the degree of depth of groove and bondline thickness can be determined by preceding method on the whole.Other size is generally the 20-500 micron as the breadth extreme of groove (i.e. ultimate range between two adjacent protrusion parts), is preferably the 40-200 micron, more preferably the 50-100 micron.The breadth extreme (maximum horizontal size) of the bossing around the defining slot is generally the 0.1-10 millimeter.
With regard to the position distribution of bossing on adhesive surface, regular distribution preferably.For example, bossing approximately is arranged on each foursquare center in the transversal geometric figure.In this case, form each groove on the foursquare line constituting, and at least one groove (preferred a plurality of grooves) can be in communication with the outside on the image-recording medium neighboring that pastes on the adherend, thereby form through hole.
Bonding coat preferably forms with the composition that contains 100 weight portion pressure-sensitive adhesion polymkeric substance and 0.01-5 weight portion crosslinking chemical.Term used herein " pressure-sensitive adhesion polymkeric substance " is meant and shows viscosity at normal temperatures, can be used as the polymkeric substance of contact adhesive.The example of available this polymkeric substance comprises acrylate copolymer, polyurethane, polyolefin and polyester.Similar to conventional known pressure-sensitive adhesives, also tackifier and pressure-sensitive adhesion combination of polymers can be used.
Better contain reactive hydrogen in the pressure-sensitive adhesion polymer molecule, in order that improve the water-intake rate of bonding coat.Reactive hydrogen easily forms hydrogen bond with hydrone, so can improve the water-intake rate of bonding coat effectively.The suitable example that contains the functional group of reactive hydrogen comprises carboxyl, hydroxyl and amino.Reactive hydrogen can be combined in the molecule with the form of the group (functional group) that contains reactive hydrogen.In order in polymkeric substance, to introduce the group contain reactive hydrogen, preferably with contain first monomer that the group that contains reactive hydrogen is arranged in the molecule and can with the raw material synthetic polymer of second monomer of this first monomer copolymerization.
Be that example illustrates this synthetic method now with the acrylic polymers.At first, prepare a kind of acrylic compounds unsaturated acid (as acrylic acid, methacrylic acid, itaconic acid and maleic acid) first monomer.Be mixed into monomer mixture with this first monomer with as the acrylate of second monomer then.Alkyl acrylate such as Isooctyl acrylate monomer, butyl acrylate, 2-EHA and acrylic acid ester in the different ninth of the ten Heavenly Stems can be used as second monomer.The weight ratio of first monomer and second monomer is preferably 1 in the monomer mixture: 99-10: 90.
By the above-mentioned monomer mixture that makes, can synthesize pressure-sensitive adhesion polymkeric substance with common polymerization (as solution polymerization process, emulsion polymerization and block polymerization method) with predetermined molecular weight.If can reach the viscosity of pre-provisioning request, the molecular weight of pressure-sensitive adhesion polymkeric substance is just enough, and by weight-average molecular weight, it is generally 10000-100000.
The pressure-sensitive adhesion polymkeric substance also can be crosslinked.In cross-linking process, can add crosslinking chemical, for example comprise isocyanate compound, melamine compound, poly-(methyl) acrylate compounds, epoxy compound or amido compounds.Contain under the situation of pressure-sensitive adhesion polymkeric substance at pressure-sensitive adhesive layer equally, polymkeric substance also can be crosslinked with above-mentioned crosslinking chemical.
The modulus in compression of bonding coat is 1 * 10
3-1 * 10
5Pa (1 * 10
4-1 * 10
6Dynes per centimeter
2).If modulus in compression for too low, just is difficult to improve on-the-spot water tolerance.On the contrary, if modulus in compression is too high, bond strength will reduce, just can not be for a long time service recorder medium at the scene." modulus in compression " is 20 ℃ of modulus in compression that the viscoelasticity spectrometer RSAII that makes with RheometrixCorporation records.Specifically, when the frequency with 1 radian per second applies compression set, temperature is changed in-80 ℃ to 150 ℃ scope, measure the influence of temperature elastic modulus.20 ℃ measured value is defined as modulus in compression.
For in the Water Resistance Test at the scene or do not cause the open defect that causes because of swelling in the following water tolerance accelerated test, better determine the combination of each constituent element and each constituent element of image-recording medium of the present invention.The water tolerance accelerated test is a cyclic test, promptly prepare planar dimension and be 70 millimeters * 150 millimeters image-recording medium sample, reciprocal twice it is pasted the surface of an aluminium sheet with the backer roll of 2 kiloponds, be allowed to condition at then and left standstill under the room temperature 24 hours, then repeatedly with sample in 65 ℃ are heating and curing the warm water that soaks 40 ℃ then.
Cycling condition:
65 ℃ the heating 24 hours → in 40 ℃ warm water, soak 24 hours →
65 ℃ the heating 24 hours → in 40 ℃ warm water, soak 24 hours →
65 ℃ the heating 24 hours → in 40 ℃ warm water, soak 24 hours →
65 ℃ the heating 24 hours → in 40 ℃ warm water, soak 24 hours →
65 ℃ the heating 24 hours → in 40 ℃ warm water, soaked 24 hours.
Image-recording medium of the present invention is to use the printing equipment of ink-jet printer and so on to come the recording ink image.When having disposed above-mentioned ink-receiver layer and carrier having been carried out after the hydrophiling, recording medium of the present invention is special energy display effect when writing down with the ink-jet printer that uses water color ink (being that solvent is a water), and can improve quick-drying and water tolerance effectively.This water color ink contains colorant such as pigment and solvent such as water usually.Printing can with common recording chart on print identical condition and carry out.
Image-recording medium of the present invention can be used as ornamental bonding sheet.For example, prepare laminated that comprises image-recording medium and lining, this laminated is put in the printing machine, on the ink-receiver layer of recording medium, carry out ornamental printing, make ornamental bonding sheet.Similar to the ornamental bonding sheet of routine, bonding sheet of the present invention can paste adherend, on the surface as sign board, wall, car body or windowpane, adherend is decorated.
Embodiment
Embodiment 1
The porous membrane (PPG Industry K.K. makes, trade mark Teslin) that will contain amorphous silica is made carrier.The porosity of described porous membrane is 65 volume %, and thickness is 180 microns, and pore size is the 0.01-1 micron.On a surface of this carrier, the folded bonding coat of going up in the belt material.The following method preparation of bonding coat in this belt material: preparation has the lining of predetermined coarse structure, applies the contact adhesive that contains acrylic compounds pressure-sensitive adhesion polymkeric substance on this coarse structure surface, and formation thickness (T) is 25 microns bonding coat.Contain the carboxyl functional group that contains that constitutes the acrylic acid residue in the molecule of acrylic compounds pressure-sensitive adhesion polymkeric substance.The coarse structure of lining makes along intersecting to form on the foursquare line some bossing continuously mutually, these bossings be with bonding coat on the corresponding many excrescences of groove that form.The height of above-mentioned excrescence is 19.5 microns, and the groove depth D of bonding coat is 19.5 microns.Therefore, size T-D is 5.5 microns.In lining, the ultimate range between the adjacent excrescence (being the distance between the excrescence basal surface) is 1.2 millimeters, and the width of excrescence is 55 microns.The vertical cross-section of excrescence approaches trapezoidal, and is corresponding with it, and the vertical cross-section of groove also approaches trapezoidal in the bonding coat.
On above-mentioned another surface of carrier that makes the band bonding coat, apply the solution that contains surfactant with scraping strip coating machine with following composition, dry then, make this surface hydrophilic.
The composition of hydrophiling solution
Surfactant (PELEX (lot) TR (trade mark) 13 weight portions that Kao company makes
Deionized water 61 weight portions
Ethanol 26 weight portions
At last, on this another surface of the own hydrophiling of carrier, apply the coating solution with following composition with scraping strip coating machine, dry back forms ink-receiver layer, thereby makes the image-recording medium of present embodiment.Coating under 100 ℃ condition dry 3 minutes, the thickness of receiving layer is 20 microns.
Be used to form No. 1 composition of the coating solution of receiving layer
PATERACOL (lot) IJ-170 (trade mark) 95 weight portions
Aluminium sulphate 14-18H
2Aqueous solution 5 weight portions of O
PATERACOL (lot) IJ-170 (trade mark) contains the cation-modified polyurethane and the finishing agent of inorganic fine powder, available from Dai-Nippon Ink﹠amp; Chemicals, Inc.
On the ink-receiver layer surface of present embodiment recording medium (printing ink is accepted the surface), Navajet (lot) III (trade mark) the ink-jet printer printing made from Encad K.K. forms image, proposes then following printing performance is estimated.Listed file names with printing condition below.
Printing condition
Print direction: unidirectional
Jet speed: 5000Hz
Used printing ink: (lot) 8550 serial 4 chromatic colorant printing ink that 3M company produces, promptly cyan (#8551), fuchsin (#8553), yellow (#8553) and black (block) are (#8554).
Printing performance
(1) drying time:
Estimate the drying time (tarnishing the preceding time with the observable printing ink of eyes) with the full part (400% zone) of mixing of 4 color inks.Be 75 seconds drying time, and quick-drying is enough high.
(2) fuzzy:
Observe and estimate the fuzzy of the black 3 color ink mixing portions in addition coloured part boundary adjacent with eyes with other.Almost do not observe fuzzy.
(3) coloring (colour density)
The coloring of (eyes are observed) is all very high in monochromatic area and the colour mixture district.
(lot) BJC-600J ink-jet printer that above-mentioned printing machine is changed into Canon K.K. manufacturing prints, and also estimates its printing performance.When the image recording sheet was discharged from printing machine, 400% zone was dry, and the boundary in 300% zone does not almost observe fuzzy.Coloring is very good.
Form image by method same as described above with the printing of Navajet (lot) III (trade mark) ink-jet printer, visual recording medium has been write down in preparation, pastes transparent laminate film (lot) #8516 of going up that 3M company makes then in the above, covers the image surface.
With bonding coat this medium that has write down image is pasted on the aluminium sheet, then be allowed to condition at room temperature and leave standstill 24 hour with the backer roll roll extrusion twice back and forth of 2 kiloponds this moment, carries out above-mentioned cyclic test (repeating to heat and be immersed in 40 ℃ of warm water at 65 ℃) again.After the test, from the image surface of this observed and recorded medium of last laminate film, swelling does not a bit take place in the result.
In addition, Unrecorded image-recording medium is pasted on the aluminium sheet, then be allowed to condition at room temperature and leave standstill 24 hour with the backer roll roll extrusion twice back and forth of 2 kiloponds this moment.Simultaneously observe from ink-receiver layer again, check the coarse structure of whether seeing the bonding coat surface.As a result, do not observe coarse structure.
Comparative Examples 1
Write down the image-recording medium of image by the method preparation identical with embodiment 1, different is becomes 15 microns with the Level Change of lining bossing.Carry out cyclic test by the method identical with embodiment 1, the result has produced swelling between last laminate film and visual surface, and observes the outward appearance defectiveness.
Comparative Examples 2
Write down the image-recording medium of image by the method preparation identical with embodiment 1, different is changes over 31 microns with the thickness of bonding coat, and difference in size T-D changes over 11.5 millimeters.Carry out cyclic test by the method identical with embodiment 1, the result has produced swelling between last laminate film and visual surface, and observes the outward appearance defectiveness.
Embodiment 2
By the image-recording medium of the method preparation record identical with embodiment 1, different is changes over 20 microns with the thickness of bonding coat, and difference in size T-D changes over 0.5 millimeter.Carry out cyclic test by the method identical with embodiment 1, the result observes and produced very slight swelling between last laminate film and visual surface, and the degree of this swelling is very low, does not cause open defect.
Same by the method identical with embodiment 1, this observes simultaneously whether the bonding coat coarse structure is arranged to accept the surface from printing ink.As a result, clearly observe coarse structure.
The invention effect
Image-recording medium of the present invention can prevent on the interface of each lamination in this medium residual effectively Water, thus in use, in the use procedure, can effectively prevent from being given birth to by water or evaporation especially out of doors The swelling that the aqueous vapor that becomes causes.
Claims (3)
1. image-recording medium, it comprises:
Carrier with two first type surfaces,
Place the ink-receiver layer on described carrier first first type surface,
Place the bonding coat on described carrier second first type surface;
It is characterized in that described carrier is the porous body that comprises ventilative micropore,
Many and the groove that can be in communication with the outside after adherend contacts are being arranged on the adhesive surface of described bonding coat, and described adhesive surface is the surperficial opposing and surface that contact with adherend that contacts with described carrier,
What described groove satisfied that following formula represents works the depth D (micron) that records and the relation between the bondline thickness T (micron) by adhesive surface:
0.5≤T-D≤5.5, prerequisite are D 〉=16 micron.
2. image-recording medium as claimed in claim 1 is characterized in that, described bonding coat comprises the pressure-sensitive adhesion of reactive hydrogen polymkeric substance in the molecule.
3. image-recording medium as claimed in claim 1 or 2 is characterized in that, the thickness T of described bonding coat is the 20-40 micron.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000172020A JP2001341420A (en) | 2000-06-05 | 2000-06-05 | Image recording medium |
| JP172020/2000 | 2000-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1433359A CN1433359A (en) | 2003-07-30 |
| CN1208205C true CN1208205C (en) | 2005-06-29 |
Family
ID=18674488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB018106943A Expired - Fee Related CN1208205C (en) | 2000-06-05 | 2001-05-30 | Image recording medium |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1289770A2 (en) |
| JP (1) | JP2001341420A (en) |
| KR (1) | KR20030009505A (en) |
| CN (1) | CN1208205C (en) |
| AU (1) | AU2001266622A1 (en) |
| BR (1) | BR0111312A (en) |
| WO (1) | WO2001094124A2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002254549A (en) * | 2001-03-02 | 2002-09-11 | Lintec Corp | Porous sheet laminate and water-resistant display sheet |
| JP4062027B2 (en) * | 2002-09-18 | 2008-03-19 | コニカミノルタホールディングス株式会社 | Inkjet image forming method |
| CN1726137A (en) * | 2002-12-16 | 2006-01-25 | 3M创新有限公司 | Marking film, receptor sheet and marking film for vehicles |
| US7655296B2 (en) | 2003-04-10 | 2010-02-02 | 3M Innovative Properties Company | Ink-receptive foam article |
| US7820282B2 (en) | 2003-04-10 | 2010-10-26 | 3M Innovative Properties Company | Foam security substrate |
| TWI357858B (en) * | 2004-10-20 | 2012-02-11 | Du Pont | Donor element with release-modifier for thermal tr |
| WO2010099290A2 (en) | 2009-02-25 | 2010-09-02 | Avery Dennison Corporation | Method for making multi-layer print media by extrusion coating |
| CN103377587B (en) * | 2012-04-17 | 2016-08-24 | 深圳正峰印刷有限公司 | Label and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0603208B1 (en) * | 1991-09-12 | 1998-09-23 | Minnesota Mining And Manufacturing Company | Patterned pressure sensitive adhesive transfer tape |
| AU1149197A (en) * | 1995-12-07 | 1998-06-27 | Minnesota Mining And Manufacturing Company | Ink jet printable microporous film |
| DE19724648C2 (en) * | 1997-06-11 | 1999-06-24 | Zweckform Buero Prod Gmbh | Grid-coated, interlayer-free, self-adhesive fabric |
-
2000
- 2000-06-05 JP JP2000172020A patent/JP2001341420A/en active Pending
-
2001
- 2001-05-30 KR KR1020027016234A patent/KR20030009505A/en not_active Application Discontinuation
- 2001-05-30 AU AU2001266622A patent/AU2001266622A1/en not_active Abandoned
- 2001-05-30 WO PCT/US2001/017395 patent/WO2001094124A2/en not_active Application Discontinuation
- 2001-05-30 CN CNB018106943A patent/CN1208205C/en not_active Expired - Fee Related
- 2001-05-30 BR BR0111312-7A patent/BR0111312A/en not_active Application Discontinuation
- 2001-05-30 EP EP01944184A patent/EP1289770A2/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| BR0111312A (en) | 2003-11-04 |
| WO2001094124A3 (en) | 2002-06-27 |
| KR20030009505A (en) | 2003-01-29 |
| WO2001094124A2 (en) | 2001-12-13 |
| EP1289770A2 (en) | 2003-03-12 |
| JP2001341420A (en) | 2001-12-11 |
| CN1433359A (en) | 2003-07-30 |
| AU2001266622A1 (en) | 2001-12-17 |
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