EP3352991A1 - Heat-sensitive recording material - Google Patents
Heat-sensitive recording materialInfo
- Publication number
- EP3352991A1 EP3352991A1 EP17777054.2A EP17777054A EP3352991A1 EP 3352991 A1 EP3352991 A1 EP 3352991A1 EP 17777054 A EP17777054 A EP 17777054A EP 3352991 A1 EP3352991 A1 EP 3352991A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat
- sensitive recording
- formula
- compound
- recording material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229940034794 benzylparaben Drugs 0.000 description 1
- 229940106691 bisphenol a Drugs 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007707 calorimetry Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007766 curtain coating Methods 0.000 description 1
- 229960000860 dapsone Drugs 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 125000001664 diethylamino group Chemical group [H]C([H])([H])C([H])([H])N(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical class C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- BDIFKMOUQSYRRD-UHFFFAOYSA-N diphenyl hexanedioate Chemical compound C=1C=CC=CC=1OC(=O)CCCCC(=O)OC1=CC=CC=C1 BDIFKMOUQSYRRD-UHFFFAOYSA-N 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- ILRSCQWREDREME-UHFFFAOYSA-N dodecanamide Chemical compound CCCCCCCCCCCC(N)=O ILRSCQWREDREME-UHFFFAOYSA-N 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- PKVPQUVCBXSQNS-UHFFFAOYSA-N ethyl 4-[(4-ethoxycarbonylphenyl)sulfamoylcarbamoylamino]benzoate Chemical compound C(C)OC(=O)C1=CC=C(C=C1)NC(=O)NS(=O)(=O)NC1=CC=C(C=C1)C(=O)OCC PKVPQUVCBXSQNS-UHFFFAOYSA-N 0.000 description 1
- OYQYHJRSHHYEIG-UHFFFAOYSA-N ethyl carbamate;urea Chemical compound NC(N)=O.CCOC(N)=O OYQYHJRSHHYEIG-UHFFFAOYSA-N 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- FEEPBTVZSYQUDP-UHFFFAOYSA-N heptatriacontanediamide Chemical compound NC(=O)CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC(N)=O FEEPBTVZSYQUDP-UHFFFAOYSA-N 0.000 description 1
- HSEMFIZWXHQJAE-UHFFFAOYSA-N hexadecanamide Chemical compound CCCCCCCCCCCCCCCC(N)=O HSEMFIZWXHQJAE-UHFFFAOYSA-N 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229940097275 indigo Drugs 0.000 description 1
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- RQAQWBFHPMSXKR-UHFFFAOYSA-N n-(4-chlorophenyl)-3-(phosphonooxy)naphthalene-2-carboxamide Chemical compound OP(O)(=O)OC1=CC2=CC=CC=C2C=C1C(=O)NC1=CC=C(Cl)C=C1 RQAQWBFHPMSXKR-UHFFFAOYSA-N 0.000 description 1
- DJWFNQUDPJTSAD-UHFFFAOYSA-N n-octadecyloctadecanamide Chemical compound CCCCCCCCCCCCCCCCCCNC(=O)CCCCCCCCCCCCCCCCC DJWFNQUDPJTSAD-UHFFFAOYSA-N 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- GJNDMSSZEBNLPU-UHFFFAOYSA-N octadecylurea Chemical compound CCCCCCCCCCCCCCCCCCNC(N)=O GJNDMSSZEBNLPU-UHFFFAOYSA-N 0.000 description 1
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- WKEDVNSFRWHDNR-UHFFFAOYSA-N salicylanilide Chemical compound OC1=CC=CC=C1C(=O)NC1=CC=CC=C1 WKEDVNSFRWHDNR-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- 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
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/323—Organic colour formers, e.g. leuco dyes
-
- 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
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
- B41M5/3333—Non-macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/04—Direct thermal recording [DTR]
Definitions
- thermosensitive recording material comprising a) a compound of the formula (I) and b) a compound of the formula (II), a use of the thermosensitive recording material and a process for producing a thermosensitive recording material.
- Heat-sensitive recording materials have been known for many years and enjoy a high level of popularity. This popularity is due, among other things, to the fact that their use has the advantage that the color-forming components are contained in the recording material itself and therefore toner and color cartridge-free printers can be used. It is therefore no longer necessary to acquire toner cartridges or color cartridges, to stockpile, to change or to refill. Thus, this innovative technology has largely prevailed, especially in public transport and retail.
- ⁇ bisphenol-A which is 2,2 bis (4-hydroxyphenyl) propane
- ⁇ bisphenol-S which is 4,4'-dihydroxydiphenylsulfone
- Pergafast® 201 which is A / - (4-methylphenylsulfonyl) - / V- (3- (4-methylphenylsulfonyloxy) phenyl) urea, from BASF SE,
- D8 which is 4-hydroxy-4'-isopropoxydiphenylsulfone, and ⁇ A / - ⁇ 2 - [(phenylcarbamoyl) amino] phenyl ⁇ benzenesulfonamide.
- DE 10 2004 004 204 A1 proposes a heat-sensitive recording material whose heat-sensitive recording layer comprises conventional dye precursors and the combination of a phenolic color developer and a color developer Having urea-urethane base.
- DE 10 2015 104 306 A1 describes a heat-sensitive recording material which comprises a carrier substrate and a heat-sensitive color-forming layer comprising at least one color former and at least one phenol-free color developer, the phenol-free color developer being, for example, N-phenyl-N '[(phenylamino) sulfonyl] urea, N- (4-methylphenyl) -N '[(4-ethylphenylamino) sulfonyl] urea, N- (4-ethoxycarbonylphenyl) -N' [(4-ethoxycarbonylphenylamino) sulfonyl] urea or structurally similar compounds.
- the phenol-free color developer being, for example, N-phenyl-N '[(phenylamino) sulfonyl] urea, N- (4-methylphenyl) -N '[(4-ethylphenylamino)
- JP 2014-218062 A describes a heat-sensitive recording material having a heat-sensitive recording layer which contains at least one leuco dye and a color developer on a support.
- a color developer a mixture of 4,4'-bis (3-tosylureido) diphenylmethane and N- [2- (3-phenylureido) phenyl] benzenesulfonamide is used.
- US 2005/0148467 A1 is a heat-sensitive recording material which contains at least the components of two color-forming systems for forming an irreversible printed image, one being a chelate-type system and the other a conventional leuco-dye system.
- a heat-sensitive recording material which contains at least the components of two color-forming systems for forming an irreversible printed image, one being a chelate-type system and the other a conventional leuco-dye system.
- Another challenge is to expose a printed thermally sensitive recording material to its typical uses as a ticket, ticket, ticket, parking ticket, and the like to a variety of different environmental conditions such as moisture, heat, or chemicals.
- thermosensitive recording materials may come into contact with a variety of different substances which may affect the resistance of the thermal term. These include, in addition to water and organic solvents, fats and oils which are contained, for example, in hand care products and when touching the heat-sensitive record. material can be transferred to this material. In particular, the resistance to fats and oils is therefore very relevant.
- heat-sensitive recording materials In addition to the resistance to chemicals that may come into contact with the heat-sensitive recording materials, heat-sensitive recording materials must also have a high resistance to thermal influences.
- the heat-sensitive recording material should be energy-saving and easy to print, for example, to consume low energy in mobile applications.
- the printed image should remain after printing, and when exposed to heat, the printed image should not fade, nor should the unprinted background be discolored, which would make the print no longer legible.
- the thermal resistance is extremely relevant.
- the long-term durability of the heat-sensitive recording material is very important.
- the object of the present invention is thus to provide a heat-sensitive recording material which, when printed, has a high resistance to environmental influences, such as moisture, heat or chemicals.
- the heat-sensitive recording materials should have a low long-term aging, even at high temperatures (40 to 60 ° C) and possibly high humidity and thereby have a relation to the prior art improved or at least consistent resistance to fat.
- a heat-sensitive recording material comprising i) a carrier substrate and ii) a heat-sensitive recording layer, the heat-sensitive recording layer comprising a color former and a color developer mixture and the color developer mixture a) a compound of the formula (I)
- the compound of the formula (I) is likewise already known and is described, for example, in EP 2 923 851 A1. It is sold under the name NKK. However, it has been found that the compound of formula (I) can exist in two different crystalline forms. Both crystalline forms have different physical properties that may affect the thermosensitive recording material.
- a crystalline form of the compounds of formula (I) has a melting point of about 158 ° C, while the second used in the invention crystalline form of the compounds of formula (I) has a melting point of 175 ° C.
- the compound of the formula (I) has been described in the literature so far, which is the crystalline form having a melting point of about 158 ° C. (cf., for example, EP 2 923 851 A1 paragraph [ 0084]).
- the preparation nor the use of the crystalline form of the compounds of the formula (I) having a melting point of about 175 ° C. used according to the invention are described in the literature.
- the crystalline form of the compound of the formula (I) having a melting point of about 158 ° C has always been used, although the melting point is not explicitly mentioned in the corresponding document.
- the crystalline form of the compound of the formula (I) having a melting point of 175.degree. C. used according to the invention has recently become commercially available.
- a heat-sensitive recording material preference is therefore given to a heat-sensitive recording material, the crystalline form of the compound of the formula (I) having a (preferably endothermic) transition at a temperature between 170.degree. C. and 178.degree. C., preferably between 173.degree. C. and 177.degree. particularly preferably between 174 ° C and 176 ° C, determined by means of differential scanning calorimetry (DKK) at a heating rate of 10 K / min.
- DKK differential scanning calorimetry
- Both crystalline forms of the compounds of the formula (I) can also be distinguished from one another in the IR absorption spectrum.
- the absorption band in the IR spectrum at 3401 ⁇ 20 cm -1 is particularly characteristic in the case of the crystalline form of the compounds of the formula (I) which have a melting point of approx. 158 ° C, this band is not present, but in each case one band at 3322 and 3229 cm “1 .
- a heat-sensitive recording material wherein the crystalline form of the compound of the formula (I) in the IR spectrum absorption bands at 689 ⁇ 10 cm “1 , 731 ⁇ 10 cm “ 1 , 1653 ⁇ 10 cm “1 3364 ⁇ 20 cm “ 1 and 3401 ⁇ 20 cm “1 .
- preference is given to a heat-sensitive recording material wherein the IR absorption spectrum of the crystalline form of the compound of the formula (I) substantially corresponds to the IR absorption spectrum depicted in FIG. 1a), 2a) and / or 3a).
- Both crystalline forms of the compounds of the formula (I) can likewise be distinguished from one another in the X-ray powder diffractogram or diffraction diagram. According to the invention, preference is given to a heat-sensitive recording material, the crystalline form of the compound of the formula (I) being an X-ray powder diffractogram with diffraction reflections at 20.degree. Values of 10.00 ⁇ 0.20, 1.00, 0.00.20, 12.40 , 20, 13.80 ⁇ 0.20 and 15.00 ⁇ 0.20.
- a heat-sensitive recording material preference is given to a heat-sensitive recording material, the crystalline form of the compound of the formula (I) having an X-ray powder diffractogram which essentially corresponds to the X-ray powder diffractogram depicted in FIG. 4b).
- a compound of the formula (I) is always described as being the crystalline form which has an absorption band at 3401 ⁇ 20 cm -1 in the IR spectrum or has a melting point of 175 ° C. or a transition at one temperature between 170 ° C. and 178 ° C.
- the indication a) of the melting point, b) of the diffraction reflexes in the X-ray powder diffractogram or c) of the absorption bands in the IR spectrum merely serve to describe the crystalline form of the compound and thus make possible this crystalline form of other crystalline forms of the Distinguish connection.
- the indication of one of these measured variables is usually already sufficient to carry out a differentiation of the different crystalline forms.
- Particular preference is given to specifying the absorption bands in the IR spectrum, since an IR spectrum can be measured very easily and with high reproducibility for the expert and include IR spectrometers to the basic equipment in the chemical laboratory.
- heat-sensitive recording materials according to the invention have a significantly improved long-term stability than heat-sensitive recording materials in which the color developer mixture has been replaced in equal parts by weight by a compound of formula (I) or a compound of formula (II).
- the combination of a compound of the formula (I) used according to the invention with a compound of the formula (II) thus has a synergistic effect which was unpredictable and therefore completely surprising.
- a heat-sensitive recording material is preferred, wherein the aging of the heat-sensitive recording material is less than the aging of a heat-sensitive recording material when stored for 24 hours at a temperature of 90 ° C, wherein the color developer mixture in equal parts by weight by a compound of formula (I) or a compound of formula (II) has been replaced.
- Also preferred according to the invention is a heat-sensitive recording material, wherein the aging of the heat-sensitive recording material when stored at 40 ° C. and 90% relative humidity for 38 days is less than the aging of a heat-sensitive recording material in which the color developer mixture is mixed in equal parts by weight of the formula (I) or a compound of the formula (II) has been replaced.
- thermosensitive recording material The aging of the thermosensitive recording material is considered to be less if the printing density of a printed area decreases less than that of the comparative sample.
- recording materials according to the invention in addition to the improved long-term stability, also have improved resistance to fat, in particular lanolin, as heat-sensitive recording materials in which the color developer mixture according to the invention has been replaced in equal parts by weight by a compound of the formula (I).
- the resistance to fat, in particular lanolin may also be better than the fat resistance of a heat-sensitive recording material in which the color developer mixture according to the invention has been replaced in equal parts by weight by a compound of the formula (I) or (II). Accordingly, therefore, there is also a synergistic effect in terms of resistance to fat, which was unpredictable and therefore completely surprising.
- thermosensitive recording material is preferred, wherein the stability of the thermosensitive recording material to lanolin after 14 days is higher than the resistance of a thermosensitive recording material in which the color developer mixture has been replaced in equal parts by weight by a compound of formula (I).
- Also preferred according to the invention is a heat-sensitive recording material, wherein the stability of the heat-sensitive recording material to lanolin is higher than or equal to the resistance of a heat-sensitive recording material in which the color developer mixture has been replaced by a compound of the formula (II) in equal parts by weight after 14 days.
- thermosensitive recording material to lanolin is considered to be higher if the printing density of a printed area decreases less than that of the comparative sample.
- a heat-sensitive recording material preference is given to a heat-sensitive recording material, the mass ratio between the compound of the formula (I) and the compound of the formula (II) being 0.5: 99.5 to 99.5: 0.5. It has been shown in our own investigations that at a level of less than 0.5% by weight of the compound of the formula (I) or (II), based on the total weight of the compounds of the formula (I) and (II ), the positive influence of the respective compound is not so pronounced.
- Particularly preferred according to the invention is a heat-sensitive recording material, the mass ratio between the compound of the formula (I) and the compound of the formula (II) being 35:65 to 65:35, preferably 40:60 to 60:40, particularly preferably 45: 55 to 55: 45.
- a heat-sensitive recording material is preferred, wherein the carrier substrate is a paper, synthetic paper or a plastic film.
- a non-surface treated base paper is particularly preferred because it has good recyclability and good environmental compatibility.
- a non-surface treated base paper is to be understood as meaning a base paper which has not been treated in a size press or in a coater.
- plastic films films of polypropylene or other polyolefins are preferred.
- the carrier substrate is a paper with a fraction of recycled fibers of at least 70% by weight, based on the total pulp content in the paper.
- a heat-sensitive recording material additionally comprising an intermediate layer located between the carrier substrate and the heat-sensitive recording layer, the intermediate layer preferably containing pigments.
- the pigments can be organic pigments, inorganic pigments or a mixture of organic pigments and inorganic pigments. It is inventively preferred if the basis weight of the intermediate layer in the range of 5 to 20 g / m 2 , preferably in the range of 7 to 12 g / m 2 .
- the intermediate layer contains pigments
- the pigments are organic pigments, preferably organic hollow-body pigments.
- the pigments are inorganic pigments, preferably selected from the list consisting of calcined kaolin, silica, bentonite, calcium carbonate, alumina and boehmite ,
- inorganic pigments are incorporated into the intermediate layer between the recording layer and the substrate, these pigments can absorb the components (eg waxes) of the heat-sensitive recording layer liquefied by the action of heat of the thermal head in the case of typeface formation and thus promote even safer and faster functioning of the heat-induced recording , It is particularly advantageous if the inorganic pigments of the intermediate layer has an oil absorption of at least 80 cm3 / 100 g, and more preferably 100 cm3 / 100 g, determined according to the Japanese standard JIS K 5101, is having. Calcined kaolin has become especially proven due to its large absorption reservoir in the cavities. Also mixtures of several different types of inorganic pigments are conceivable.
- the ratio between organic and inorganic pigment is a combination of the two types of pigments caused effects, which is particularly advantageously solved when the pigment mixture to 5 to 30 wt .-% or better to 8 to 20 wt .-% of organic and 95 to 70 wt .-% or better to 92 to 80 wt .-% consists of inorganic pigment.
- Pigment mixtures of different organic pigments and / or inorganic pigments are conceivable.
- preference is given to a heat-sensitive recording material the intermediate layer optionally containing, in addition to the inorganic and / or organic pigments, at least one binder, preferably based on a synthetic polymer, with styrene-butadiene latex giving particularly good results.
- a synthetic binder with the admixture of at least one natural polymer, particularly preferably starch represents a particularly suitable embodiment.
- a binder-pigment ratio within the intermediate layer is between 3: 7 and 1: 9, in each case based on wt .-% in the intermediate layer, represents a particularly suitable embodiment.
- a preferred heat-sensitive recording material preferably comprises, as color formers, fluoran-type compounds selected from the group consisting of 3-diethylamino-6-methyl-7-anilinofluoran, 3-diethylamino-6-methyl-7- (3'-methylphenylamino) fluoran ( 6 '- (diethylamino) -3'-methyl-2' - (m-tolylamino) -3H-spiro [isobenzofuran-1, 9'-xanthene] -3-one; ODB-7), 3-di-n- pentylamino-6-methyl-7-anilinofluoran, 3- (diethylamino) -6-methyl-7- (3-methylphenylamino) fluoran, 3-di-n-butylamino-7- (2-chloroanilino) fluoran, 3 Diethylamino-7- (2-chloroanilino) fluoran, 3 Diethylamino-6-methyl
- heat-sensitive recording materials according to the invention which contain as color formers the compounds mentioned in paragraphs [0049] to [0052] of EP 2 923 851 A1.
- a heat-sensitive recording material the color former being selected from the group consisting of 3-N-di-n-butylamine-6-methyl-7-anilinofluoran (ODB-2) and 3- (N-ethyl) N-isopentylamino) -6-methyl
- Preferred in the invention is a heat-sensitive recording material, wherein the heat-sensitive recording layer contains a sensitizer.
- the sensitizer is first melted during the application of heat during printing, and the molten sensitizer dissolves the color formers and color developers coexisting in the thermosensitive recording layer and / or lowers the melting temperature of the color formers and color developers to cause a color development reaction.
- the sensitizer does not participate in the color-winding reaction itself.
- a sensitizer is therefore understood to mean substances which serve to adjust the melting temperature of the heat-sensitive recording layer and with which preferably a melting temperature of about 70 to 80 ° C. can be set without the sensitizers themselves being involved in the color-winding reaction.
- fatty acid salts, fatty acid esters and fatty acid amides eg zinc stearate, stearic acid amide, palmitic acid amide, Oleic acid amide, lauric acid amide, ethylene and methylenebisstearic acid amide, methylolstearic acid amide
- naphthalene derivatives biphenyl derivatives, phthalates and terephthalates.
- the sensitizer is selected from the group consisting of 1,2-bis (3-methylphenoxy) ethane, 1,2-diphenoxyethane, 1,2-di (m-methylphenoxy) ethane, 2- (2H-Benzotriazol-2-yl) -p-cresol, 2,2'-bis (4-methoxyphenoxy) diethyl ether, 4,4'-
- Salicylic anilide, stearamide and ⁇ , ⁇ '-diphenoxyxylene with benzylnaphthyl ether, diphenylsulfone, 1, 2-di (m-methylphenoxy) ethane and 1, 2-diphenoxyethane being particularly preferred.
- heat-sensitive recording materials which contain as sensitizer the compounds mentioned in paragraphs [0059] to [0061] of EP 2 923 851 A1.
- these sensitizers are each used alone, that is, not in combination with the other sensitisers mentioned above.
- at least two sensitizers selected from the above list are incorporated in the thermosensitive recording layer.
- a heat-sensitive recording material is preferred, wherein the sensitizer has a melting point of 60 ° C to 180 ° C, preferably a melting point of 80 ° C to 140 ° C.
- 4,4'-diaminodiphenylsulfone 4,4'-DDS, dapsone
- the use of 4,4'-diaminodiphenyl sulfone in thermopapulation ren is described for example in WO 2014/143174 A1.
- the invention may then in this case relate to a heat-sensitive recording material, 4,4'-diaminodiphenyl sulfone in the heat-sensitive recording layer, in particular additionally as an additive, is included.
- Heat-sensitive recording materials are preferred according to the invention, the heat-sensitive recording layer containing a binder, preferably a crosslinked or uncrosslinked binder selected from the group consisting of polyvinyl alcohol, carboxyl group-modified polyvinyl alcohol, ethylene-vinyl alcohol copolymer, a combination of polyvinyl alcohol and ethylene-vinyl alcohol copolymer, silanol group-modified polyvinyl alcohol, diacetone-modified polyvinyl alcohol, acrylate copolymer and film-forming acrylic copolymers.
- a binder preferably a crosslinked or uncrosslinked binder selected from the group consisting of polyvinyl alcohol, carboxyl group-modified polyvinyl alcohol, ethylene-vinyl alcohol copolymer, a combination of polyvinyl alcohol and ethylene-vinyl alcohol copolymer, silanol group-modified polyvinyl alcohol, diacetone-modified polyvinyl alcohol, acrylate copolymer and film-
- the coating composition for forming the heat-sensitive recording layer of the heat-sensitive recording material according to the invention contains, in addition to one or more binders, one or more crosslinking agents for the binder (s).
- the crosslinking agent is selected from the group consisting of zirconium, Polyamidaminepichlorhydrinharzen, boric acid, glyoxal, dihydroxy bis (ammonium lactato) titanium (IV) (CAS No. 65104-06-5;. Tyzor ® LA) and glyoxal derivatives.
- a heat-sensitive recording material of the present invention whose heat-sensitive recording layer is formed from such a coating composition containing one or more binders and one or more crosslinking agents for the binder or binders contains one or more crosslinked in the heat-sensitive recording layer by reaction with one or more crosslinking agents binder, the crosslinking agent or agents are selected from the group consist- ing of zirconium, Polyamidaminepichlorhydrinharzen, boric acid, glyoxal, dihydroxy bis (ammonium lactato) titanium (IV) (CAS No. 65104-06-5;. Tyzor ® LA) and glyoxal derivatives.
- crosslinked binder is meant the reaction product formed by reaction of a binder with one or more crosslinking agents.
- a heat-sensitive recording material is preferred, wherein the basis weight of the heat-sensitive recording layer is in the range of 1, 5 to 6 g / m 2 , preferably in the range of 2.0 to 5.5 g / m 2 , particularly preferably in the range of 2.0 to 4.8 g / m 2 .
- a heat-sensitive recording material is also preferred according to the invention, the proportion of the color developer mixture in the heat-sensitive recording layer being 35 to 15% by weight, preferably 31 to 19% by weight, particularly preferably 28 to 22% by weight, based on the total solids content the heat-sensitive recording layer.
- recording materials according to the invention may additionally image stabilizers, dispersants, antioxidants, release agents, defoamers, light stabilizers, brighteners, as are known in the art, can be used.
- Each of the components is usually used in an amount of 0.01 to 15 wt .-%, in particular - with the exception of defoamers - 0, 1 to 15 wt .-%, preferably 1 to 10 wt .-%, based on the total Solid content of the heat-sensitive recording layer.
- the defoaming agent may be present in amounts of from 0.03 to 0.05% by weight, based on the total solids content of the heat-sensitive recording layer, in the novel recording materials.
- the heat-sensitive recording layer is completely or partially covered with a protective layer.
- the heat-sensitive recording layer is also shielded to the outside or the supporting substrate of the next layer within a roll, so that it is protected from external influences.
- such a protective layer in addition to the protection of the heat-sensitive recording layer from environmental influences, often has the additional positive effect of being able to print the heat-sensitive recording material according to the invention, in particular in the indigo range. Improve offset and flexo printing. For this reason, it may be desirable for certain applications that the heat-sensitive recording material according to the present invention has a protective layer, although the presence of a color developing agent as defined above in the heat-sensitive recording layer of the heat-sensitive recording material of the invention contrasts with the resistance of a thermal print on a heat-sensitive recording material of the present invention Substances selected from the group consisting of Alcohol, fats, oils and their mixtures even without protective layer is already sufficient.
- the protective layer of the heat-sensitive recording material according to the invention preferably contains one or more crosslinked or uncrosslinked binders selected from the group consisting of polyvinyl alcohols modified with carboxyl groups, polyvinyl alcohols modified with silanol groups, diacetone-modified polyvinyl alcohols, partially and fully hydrolyzed polyvinyl alcohols and film-forming acrylic copolymers ,
- the coating composition for forming the protective layer of the heat-sensitive recording material according to the invention contains, in addition to one or more binders, one or more crosslinking agents for the binder (s).
- the crosslinking agent is then preferably selected from the group consisting of boric acid, polyamines, epoxy resins, dialdehydes, formaldehyde oligomers, epichlorohydrin resins, adipic dihydrazide, melamine-formaldehyde, urea, methylol urea, ammonium zirconium carbonate and polyamide-epichlorohydrin resins.
- a heat-sensitive recording material according to the invention contains in the protective layer one or more binders crosslinked by reaction with one or more crosslinking agents, wherein the one or more cross-linking agents are selected (from the group consisting of boric acid, polyamines, epoxy resins, dialdehydes, formaldehyde oligomers, epichlorohydrin, adipic Melaminformalde- hyd, urea, methylol urea, ammonium zirconium carbonate, Polyamidepichlorhydrinharzen and dihydroxybis (ammonium lactato) titanium (IV) Tyzor ® LA CAS-No. 65104-06-5).
- crosslinked binder is meant the reaction product formed by reaction of a binder with one or more crosslinking agents.
- the protective layer wholly or partly covering the heat-sensitive recording layer is obtainable from a coating composition comprising one or more polyvinyl alcohols and one or more crosslinking agents. It is preferred that the polyvinyl alcohol of the protective layer is modified with carboxyl or in particular silanol groups. Also mixtures of different Carboxyl-group- or silanol-modified polyvinyl alcohols are preferably usable.
- a protective layer has a high affinity to the preferably UV-crosslinking printing ink used in the offset printing process. This critically supports meeting the demand for excellent printability within offset printing.
- the one or more crosslinking agents for the protective layer according to this embodiment are preferably selected from the group consisting of boric acid, polyamines, epoxy resins, dialdehydes, formaldehyde oligomers, polyamine epichlorohydrin resin, adipic dihydrazide, melamine formaldehyde and dihydroxybis (ammonium lactato) titanium (IV) Tyzor ® LA (CAS No. 65104-06-5). It is also possible to use mixtures of different crosslinking agents.
- the weight ratio of the modified polyvinyl alcohol to the crosslinking agent is in a range of 20: 1 to 5: 1, and more preferably in a range of 12: 1 to 7: 1 Ratio of the modified polyvinyl alcohol to crosslinking agent in the range of 100 parts by weight to 8 to 1 1 parts by weight.
- the protective layer according to this embodiment additionally contains an inorganic pigment.
- the inorganic pigment is preferably selected from the group consisting of silicon dioxide, bentonite, aluminum hydroxide, calcium carbonate, kaolin and mixtures of said inorganic pigments.
- the protective layer according to this embodiment with a basis weight in a range from 1.0 g / m 2 to 6 g / m 2 and more preferably from 1.2 g / m 2 to 3.8 g / m 2 , In this case, the protective layer is preferably formed in one layer.
- the coating composition for forming the protective layer comprises a water-insoluble, self-crosslinking acrylic polymer as a binder, a crosslinking agent and a pigment component, wherein the pigment component of the protective layer consists of one or more inorganic pigments and at least 80 wt .-% of a highly purified alkaline treated Bentonite, the binder of the protective layer of one or more wasserun- soluble, self-crosslinking acrylic polymers and the binder / pigment ratio ranges from 7: 1 to 9: 1.
- a self-crosslinking acrylic polymer within the protective layer according to the second embodiment described herein is preferably selected from the group consisting of styrene-acrylic acid ester copolymers, acrylamide-containing copolymers of styrene and acrylic acid esters and copolymers based on acrylonitrile, methacrylamide and acrylic esters. The latter are preferred.
- a pigment alkaline bentonite natural or precipitated calcium carbonate, kaolin, silica or aluminum hydroxide may be incorporated into the protective layer.
- Preferred crosslinking agents are selected from the group consisting of cyclic urea, methylol urea, ammonium zirconium carbonate and polyamide-epichlorohydrin resins.
- the protective layer itself can be applied by means of conventional brushing, for which, inter alia, a coating color is usable, preferably with a surface-related mass in a range of 1, 0 to 4.5 g / m 2 .
- the protective layer is printed. Processing technology and particularly suitable in terms of their technological properties are those protective layers which are curable by means of actinic radiation.
- actinic radiation UV or ionizing radiation, such as electron beams to understand.
- the appearance of the protective layer is significantly determined by the type of smoothing and the friction in the calender and calender influencing roll surfaces and their materials.
- a roughness (Parker Print Surf roughness) of the protective layer of less than 1, 5 ⁇ is considered preferred.
- a further aspect of the present invention relates to the use of a heat-sensitive recording material according to the invention as entrance tickets, air tickets, rail tickets, bus tickets, gambling papers, parking tickets, labels, receipts, bank statements, self-adhesive labels, medical chart paper, fax paper, security paper or barcode labels.
- a further aspect of the present invention relates to products, preferably tickets, air, rail, boat or bus ticket, gambling document, parking ticket, label, receipt, bank statements, self-adhesive label, medical chart paper, fax paper, security paper or bar code labels, comprising a tageempfindli invention - Ches recording material.
- a further aspect of the present invention relates to a use of a compound of the formula (I)
- the compound of the formula (I) is in a crystalline form having an absorption band at 3401 ⁇ 20 cm -1 in the IR spectrum for improving the water resistance (especially at 40 ° C and 90% RH) of a printed image of a thermosensitive recording material in which a compound of the formula (II)
- Another aspect of the present invention relates to a process for producing a heat-sensitive recording material, comprising at least the following process steps: i. Providing or producing a carrier substrate; ii. Providing or preparing a coating composition comprising a compound of the formula (I) as used in a heat-sensitive recording material of the invention and a compound of the formula (II) as used in a heat-sensitive recording material of the invention; iii. Applying the provided or prepared coating composition to the prepared or prepared carrier substrate; iv. Drying the applied coating composition to form a heat-sensitive recording layer.
- a method additionally comprising the method steps a) providing or producing a coating composition comprising pigments; b) applying the provided or prepared coating composition to the carrier substrate; c) drying the applied coating composition to form an intermediate layer; wherein the method steps a) to c) before the method step ii. and the intermediate layer is disposed between the support substrate and the heat-sensitive recording layer. If an intermediate layer is formed, the coating composition provided or prepared is applied in step iii. of the inventive method on the formed intermediate layer and not directly on the provided or prepared carrier substrate. Also preferred according to the invention is a method additionally comprising the method steps
- Figure 1 shows a comparison of IR spectra in the wavenumber range of about 4000 to 2000 cm -1 of the two crystalline forms of the compound of formula I. Shown in the upper part and denoted by a) is the IR spectrum of the crystalline compounds used according to the invention Form of the compound of the formula (I) having a melting point of 175 ° C. Shown in the lower part and designated b) is the IR spectrum of the crystalline form of the compound of the formula (I) having a melting point of about 158 ° C. ,
- Figure 2 shows a comparison of IR spectra in the wavenumber range of about 2400 to 400 cm -1 of the two crystalline forms of the compound of formula I. Shown in the upper part and designated a) is the IR spectrum of the crystalline compounds used according to the invention Form of the compound of the formula (I) having a melting point of 175 ° C. Shown in the lower part and designated b) is the IR spectrum of the crystalline form of the compound of the formula (I) having a melting point of about 158 ° C. ,
- Figure 3 shows a comparison of IR spectra of the two crystalline forms of the compound of formula (I). Shown in the upper part and denoted by a) is the IR spectrum of the crystalline form used according to the invention of the compound of formula (I) with a melting point of 175 ° C. Shown in the lower part and labeled b) is the IR spectrum of the crystalline form of the compound of the formula (I) having a melting point of about 158 ° C.
- Figure 4 shows a comparison of X-ray powder diffractograms of the two crystalline forms of the compound of formula (I).
- Figure 5 shows the results of the determination of the long-term climatic resistance of heat-sensitive recording materials (at 40 ° C and 90% RH). In the diagram shown, the density is plotted as a function of time in days.
- Figure 6 shows the results of determination of the long-term climatic resistance of heat-sensitive recording materials (at 60 ° C). In the diagram shown, the density is plotted as a function of time in days.
- Figure 7 shows the results of determination of the resistance of thermosensitive recording materials to lanolin.
- the density is plotted as a function of time in hours ("h").
- FIG. 8 shows the measurement results of a measurement with the aid of liquid chromatography with mass spectrometry coupling (LC-MS) of the two crystalline forms of the compound of the formula (I). Shown in the upper part and denoted by a) is the chromatogram of the crystalline form of the compound of formula (I) having a melting point of about 158 ° C shown. Shown in the lower part and denoted by b) is the chromatogram of the crystalline form of the compound of the formula (I) having a melting point of 175 ° C. used according to the invention. It can be clearly seen that both measured compounds of the formula (I) contain no impurities.
- LC-MS liquid chromatography with mass spectrometry coupling
- the lower region shows the mass spectrum of the crystalline form of the compound of the formula (I) used according to the invention with a melting point of 175 ° C.
- the base peak (ion peak having the highest intensity) has a molar mass of 366.09 m / z, which corresponds to the molar mass of the compounds of the formula (I) minus H +
- the formation of solvates or the presence of impurities which could cause a change in the melting point can therefore be ruled out Structures of the compound of formula (I) and a possible, ionized fragment of the compound of formula (I) shown.
- Figure 9 shows the measurement results of thermal analysis (differential thermal analysis (DTA) and thermogravimetry (TG)) of the two crystalline forms of the compound of formula (I).
- the lines marked with a) correspond to the crystalline form of the compound of the formula (I) having a melting point of 175.degree. C. used according to the invention.
- the lines marked b) correspond to the crystalline form of the compound of formula (I) with a melting point of about 158 ° C.
- both crystalline forms of the compound of the formula (I) up to temperatures of above 150 ° C., no mass change can be observed in the thermogravimetric curve. Thus, the presence of solvates can be excluded, since evaporation of the solvent under mass change would be observed here.
- the first inflection point in the thermogravimetric curve for both compounds is about 186 ° C. In differential thermal analysis, the different melting points can be observed at 158 ° C and 174 ° C, respectively.
- Figure 10 shows the measurement results of differential scanning calorimetry (DSC) measurement of the two crystalline forms of the compound of formula (I). Shown in the upper part and denoted by a) is the curve of the crystalline form of the compound of formula (I) with a melting point of about 158 ° C. Shown in the lower part and denoted by b) is the curve of the crystalline form used according to the invention of the compound of formula (I) having a melting point of 175 ° C. In both crystalline forms of the compound of the formula (I) no enthalpy changes can be observed up to the respective melting point of the compound. Thus, the presence of solvates can be ruled out, since here an enthalpy change would be observed on evaporation of the solvent.
- DSC differential scanning calorimetry
- Figure 11 shows H-NMR spectra of the two crystalline forms of the compound of formula (I). Shown in the upper part and denoted by a) is the H-NMR spectrum of the crystalline form used according to the invention of the compound of formula (I) having a melting point of 175 ° C. Shown in the lower part and denoted by b) is the H-NMR spectrum of the compound of the formula (I) having a melting point of about 158 ° C. Further down in FIG. 11, an enlarged section of the aromatic region of about 10 to 6 ppm is shown in each case. It can be clearly seen that these are the same compounds.
- the aliphatic signals at about 3.3 ppm and 2.5 ppm are the signals of the solvent deuterated dimethyl sulfoxide DMSO-d5 or dissolved therein monodeuterated water molecules DOH.
- H-NMR spectroscopy nuclear magnetic resonance spectroscopy (NMR- Spectroscopy of English Nuclear Magnetic Resonance)
- the absorption behavior of H nuclei is detected.
- a paper web of bleached and ground hardwood and softwood pulps with a basis weight of 67 g / m 2 is prepared as the carrier substrate with the addition of customary additives in conventional amounts.
- an intermediate layer comprising hollow-shell pigments and calcined kaolin as pigment, styrene-butadiene latex as binder and starch as cobinder with a mass per unit area of 9 g / m 2 is applied using a roller-blade coating unit and dried conventionally.
- a thermally sensitive recording layer having a basis weight of 6.0 g / m 2 is applied and conventionally dried after application.
- heat-sensitive recording layer there is used a formulation comprising as a binder a mixture comprising polyvinyl alcohol and an acrylate copolymer and as a pigment calcium carbonate. Further constituents of the heat-sensitive recording layers of the individual exemplary embodiments are given in Table 1 below:
- Examples 4 to 6 were carried out analogously to Examples 1 to 3.
- the intermediate layer is not applied with a roller blade coating unit, but a contour line is drawn with a blade as an intermediate layer.
- the heat-sensitive recording layer is applied by curtain coating, wherein the basis weight is 1, 5 up to 6.0 g / m 2 , preferably 2 to 5.5 g / m 2 .
- the 3-N-di-n-butylamine-6-methyl-7-anilinofluoran (color former) is added in an amount of 40-60 parts by dry weight.
- Thermoprobeaustikes After the preparation of the black / white checked Thermoprobeaustikes after a rest period of more than 5 minutes at three points of the black colored surfaces of Thermoprobeaustikes a determination of the print density using a densitometer TECHKON ® SpectroDens Advanced - spectral densitometer. From the respective measured values of the black-colored areas, the mean value was formed in each case.
- thermoprobing print was hung in a climatic cabinet at 40 ° C and 90% relative humidity. After 1, 2, 3, 6, 10, 20 and 38 days of Thermopa- was removed pieraustik, cooled to room temperature and was again at three locations of the black-colored areas of the thermal test print to a determination of the printing density by a densitometer TECHKON ® SpectroDens Advanced - Spectral densitometer performed. The mean value was formed from the respective measured values of black-colored areas. After each measurement, the thermographic sample was again placed in the climatic chamber at 40 ° C and a relative humidity of 90% until the next measurement.
- thermosensitive recording materials at 60 ° C
- the determination was carried out analogously to the determination of the climatic resistance of heat-sensitive recording materials (at 40 ° C and 90% R.F.), but the storage was not carried out in a climatic chamber, but in a drying oven at 60 ° C.
- thermosensitive recording materials For measuring the resistance of a thermal print on the heat-sensitive recording materials of Examples 1, 2 and 3 and Comparative Examples 1 and 2 to lanolin were on each of the thermosensitive recording materials to be tested black / white checkered designed Thermoprobeaustike with a device of the type Atlantek 400 of Company Viex (USA), using a thermal head with a resolution of 300 dpi and an energy per unit area of 16 mJ / mm 2 .
- black / white checkered thermal test copies of the thermal test prints a determination of the print density using a densitometer TECHKON ® SpectroDens Advanced were after a rest period of more than 5 minutes in three places of the black-colored areas - spectro-densitometer performed. From the respective measured values, the mean value was formed.
- the prepared Thermoprobeaustik the test thermosensitive recording material was coated with lanolin. After a contact time of 10 minutes, the lanolin is carefully wiped off and then stored at 23 ° C and 50% humidity. After 1, 2, 4, 24 and 96 hours, the thermal paper printout was taken and again a determination of the print density using a densitometer TECHKON ® SpectroDens Advanced - Spectral Densitometer was carried out on three spots of the black colored areas of the thermoprobeable prints. After each measurement, the thermographic sample was again placed in the climatic chamber at 23 ° C and a relative humidity of 50% until the next measurement. From the respective measured values, the mean value was formed.
- the resistance of the image formed on the recording layer to water and aqueous solutions is evaluated.
- the excess test liquid is dabbed after 20 minutes exposure time with a filter paper or cotton cloth and the test sheet then stored for 24 hours at room temperature (23 ° C, 50% relative humidity).
- the TECHKON ® SpectroDens Advanced spectral densitometer determines the optical density of the printed areas and their difference.
- the resistance to water or aqueous ethanol solutions corresponds to the quotient of the average value of the print density formed before and after the treatment with the respective test liquid multiplied by 100.
- Tables 5 Results of Resistance Testing against Water and Aqueous Ethanol Solutions (Part 1) (Cf. for Comparative Example) The reproduced measurement results show that the resistance of the printed image to water and aqueous ethanol solution in Inventive Examples 1 to 3 did not deteriorate as compared with Comparative Examples 1 and 2.
- the commercially available or described in WO 2014/080615 A1 compound of formula (I) having a melting point of about 158 ° C is recrystallized from ethanol.
- the compound of the formula (I) used according to the invention having a melting point of about 175.degree. C. is obtained.
- the compound of the formula (I) used according to the invention has an absorption band at 3401 ⁇ 20 cm -1 in the IR spectrum.
- the compound of the formula (I) obtained by recrystallization from ethanol is characterized as solvent with the aid of H-NMR spectroscopy in DMSO-D6.
- the H-NMR spectrum of the compound of the formula (I) prepared by recrystallization does not differ from the H-NMR spectrum of the starting compound. This is not to be expected either, since no solids are present after the dissolution of the crystalline forms in DMSO-D6. However, it can be ruled out that during the recrystallization an unexpected chemical reaction took place, for example with ethanol, or that solvates were formed. Solvates with ethanol would be affected by the presence of additional signals in H-NMR (triplet at about 1.
- thermogravimetric analysis of the compound of the formula (I) obtained by recrystallization from ethanol shows no change in mass in the temperature range between 25 and 150 ° C when heating the sample.
- TGA thermogravimetric analysis
- impurities with volatile compounds such as ethanol
- a mass change of the sample at the boiling point of the volatile compound would be observable, since the volatile compound boils and thus escapes from the sample and thus leads to a mass decrease. This is not the case here.
- the results of the thermogravimetric analysis are shown in FIG.
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- Heat Sensitive Colour Forming Recording (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
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EP16192933.6A EP3305538A1 (en) | 2016-10-07 | 2016-10-07 | Heat sensitive recording material |
PCT/EP2017/074875 WO2018065328A1 (en) | 2016-10-07 | 2017-09-29 | Heat-sensitive recording material |
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EP3352991A1 true EP3352991A1 (en) | 2018-08-01 |
EP3352991B1 EP3352991B1 (en) | 2019-01-30 |
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EP16192933.6A Withdrawn EP3305538A1 (en) | 2016-10-07 | 2016-10-07 | Heat sensitive recording material |
EP17777054.2A Active EP3352991B1 (en) | 2016-10-07 | 2017-09-29 | Heat sensitive recording material |
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EP16192933.6A Withdrawn EP3305538A1 (en) | 2016-10-07 | 2016-10-07 | Heat sensitive recording material |
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US (1) | US10850546B2 (en) |
EP (2) | EP3305538A1 (en) |
JP (1) | JP6664553B2 (en) |
DE (1) | DE102017122800A1 (en) |
ES (1) | ES2720576T3 (en) |
WO (1) | WO2018065328A1 (en) |
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ES2922629T3 (en) * | 2016-08-24 | 2022-09-19 | Nippon Soda Co | Registration material and registration sheet |
CN110234515B (en) * | 2017-01-30 | 2022-02-11 | 日本曹达株式会社 | Recording material and recording sheet |
DE102018102180A1 (en) | 2018-01-31 | 2019-08-01 | Mitsubishi Hitec Paper Europe Gmbh | Heat-sensitive recording material |
DE102018102177A1 (en) | 2018-01-31 | 2019-08-01 | Mitsubishi Hitec Paper Europe Gmbh | Coating composition, heat-sensitive recording layer, thermosensitive recording material, and related uses and methods |
DE102018133168B4 (en) * | 2018-12-20 | 2021-02-18 | Papierfabrik August Koehler Se | Thermosensitive recording material |
DE102019126220A1 (en) | 2019-09-27 | 2021-04-01 | Mitsubishi Hitec Paper Europe Gmbh | Heat-sensitive recording material comprising phenol-free organic color developers |
EP3957488A1 (en) | 2020-08-19 | 2022-02-23 | Mitsubishi HiTec Paper Europe GmbH | Heat-sensitive recording material and heat-sensitive recording layer and coating composition for its production, uses and methods |
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GB9827569D0 (en) | 1998-12-16 | 1999-02-10 | Ciba Geigy Ag | Heat sensitive recording material |
MXPA02009360A (en) * | 2000-03-27 | 2003-02-12 | Ciba Sc Holding Ag | Heat sensitive recording material. |
FI110677B (en) | 2001-10-12 | 2003-03-14 | Jujo Thermal Oy | Heat-sensitive recording material for use in, e.g. stickers, has coating layer comprising chelate-type color forming system and leuco dye with urea-based developer |
JP2003276334A (en) * | 2002-03-22 | 2003-09-30 | Ricoh Co Ltd | Thermal recording material |
JP4255300B2 (en) * | 2003-03-24 | 2009-04-15 | 三菱製紙株式会社 | Thermal recording material |
DE102004004204A1 (en) | 2004-01-27 | 2005-08-11 | Mitsubishi Hitec Paper Bielefeld Gmbh | Heat-sensitive recording material for fax machines and thermal printers, has recording layer with sensitiser, pigment, binder, color formers and a color developer comprising Bisphenol A and a urea-urethane compound |
JP2005262714A (en) * | 2004-03-19 | 2005-09-29 | Mitsubishi Paper Mills Ltd | Heat-sensitive recording material |
DE102004044204A1 (en) | 2004-09-06 | 2005-11-17 | Siemens Ag | Door opening device, for vehicles and trains, comprises video camera with picture recognition to monitor area around door to detect movements and allow doors to close if moving objects do not approach |
WO2013065704A1 (en) * | 2011-10-31 | 2013-05-10 | 日本製紙株式会社 | Phenolsulfonic acid aryl ester, developing agent, and heat-sensitive recording material |
AU2012356374B2 (en) | 2011-12-21 | 2017-06-22 | Ono Pharmaceutical Co., Ltd. | Pyridinone and pyrimidinone derivatives as factor XIa inhibitors |
KR101779268B1 (en) | 2012-11-21 | 2017-09-18 | 닛뽕소다 가부시키가이샤 | Recording material produced using non-phenol compound |
US9034790B2 (en) | 2013-03-14 | 2015-05-19 | Appvion, Inc. | Thermally-responsive record material |
JP5967013B2 (en) * | 2013-05-10 | 2016-08-10 | 王子ホールディングス株式会社 | Thermal recording material |
JP6187388B2 (en) * | 2013-06-05 | 2017-08-30 | 王子ホールディングス株式会社 | Thermal recording material |
WO2015050098A1 (en) * | 2013-10-04 | 2015-04-09 | 王子ホールディングス株式会社 | Heat-sensitive recording material |
JP2015134428A (en) * | 2014-01-16 | 2015-07-27 | 王子ホールディングス株式会社 | Thermosensitive recording body |
BR112017016837B1 (en) * | 2015-02-25 | 2022-09-27 | Nippon Soda Co., Ltd | CRYSTALLINE MODIFICATION OF A COMPOUND RECORDING MATERIAL AND, RECORDING BLADE |
DE102015104306B4 (en) * | 2015-03-23 | 2018-05-03 | Papierfabrik August Koehler Se | Heat-sensitive recording material |
US11481690B2 (en) * | 2016-09-16 | 2022-10-25 | Foursquare Labs, Inc. | Venue detection |
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2016
- 2016-10-07 EP EP16192933.6A patent/EP3305538A1/en not_active Withdrawn
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2017
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- 2017-09-29 WO PCT/EP2017/074875 patent/WO2018065328A1/en active Application Filing
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JP2019534190A (en) | 2019-11-28 |
US20200039270A1 (en) | 2020-02-06 |
EP3352991B1 (en) | 2019-01-30 |
ES2720576T3 (en) | 2019-07-23 |
EP3305538A1 (en) | 2018-04-11 |
JP6664553B2 (en) | 2020-03-13 |
WO2018065328A1 (en) | 2018-04-12 |
DE102017122800A1 (en) | 2018-04-12 |
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