EP1552057B1 - Support d'impression possedant a la fois une bonne conductivite electrique et une bonne imprimabilite - Google Patents

Support d'impression possedant a la fois une bonne conductivite electrique et une bonne imprimabilite Download PDF

Info

Publication number: EP1552057B1
Authority: EP; European Patent Office
Prior art keywords: parts; print medium; pigment; dry weight; vinamul
Prior art date: 2002-09-30
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.): Expired - Lifetime

Application number

EP03775453A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP1552057A2 (fr

Inventor

Christophe Chartier

Andrée PASCAL

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

ArjoWiggins SAS

Original Assignee

ArjoWiggins SAS

Priority date (The priority date 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 date listed.)

2002-09-30

Filing date

2003-09-29

Publication date

2006-11-08

2003-09-29 Application filed by ArjoWiggins SAS filed Critical ArjoWiggins SAS

2005-07-13 Publication of EP1552057A2 publication Critical patent/EP1552057A2/fr

2006-11-08 Application granted granted Critical

2006-11-08 Publication of EP1552057B1 publication Critical patent/EP1552057B1/fr

2023-09-29 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

230000001747 exhibiting effect Effects 0.000 title 1
239000000049 pigment Substances 0.000 claims abstract description 70
239000011248 coating agent Substances 0.000 claims abstract description 27
238000000576 coating method Methods 0.000 claims abstract description 27
238000010521 absorption reaction Methods 0.000 claims abstract description 26
239000001040 synthetic pigment Substances 0.000 claims abstract description 12
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 82
-1 magnesium fluorosilicate Chemical group 0.000 claims description 36
239000000203 mixture Substances 0.000 claims description 31
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 30
229910000019 calcium carbonate Inorganic materials 0.000 claims description 30
238000012360 testing method Methods 0.000 claims description 21
230000003287 optical effect Effects 0.000 claims description 9
238000001035 drying Methods 0.000 claims description 6
238000012545 processing Methods 0.000 claims description 2
239000012799 electrically-conductive coating Substances 0.000 abstract 1
229940094522 laponite Drugs 0.000 description 26
XCOBTUNSZUJCDH-UHFFFAOYSA-B lithium magnesium sodium silicate Chemical compound [Li+].[Li+].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3 XCOBTUNSZUJCDH-UHFFFAOYSA-B 0.000 description 26
241000871495 Heeria argentea Species 0.000 description 25
239000000976 ink Substances 0.000 description 17
238000007639 printing Methods 0.000 description 17
229940104869 fluorosilicate Drugs 0.000 description 16
239000005995 Aluminium silicate Substances 0.000 description 15
235000012211 aluminium silicate Nutrition 0.000 description 15
NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 15
239000003921 oil Substances 0.000 description 14
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 13
239000011230 binding agent Substances 0.000 description 13
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 12
VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 12
XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 12
HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 12
229920001038 ethylene copolymer Polymers 0.000 description 12
238000000034 method Methods 0.000 description 7
239000000463 material Substances 0.000 description 6
239000002966 varnish Substances 0.000 description 6
239000000377 silicon dioxide Substances 0.000 description 5
230000000052 comparative effect Effects 0.000 description 4
238000007645 offset printing Methods 0.000 description 4
238000011120 smear test Methods 0.000 description 4
239000000126 substance Substances 0.000 description 4
239000008199 coating composition Substances 0.000 description 3
239000013078 crystal Substances 0.000 description 3
238000010410 dusting Methods 0.000 description 3
229920002451 polyvinyl alcohol Polymers 0.000 description 3
239000000843 powder Substances 0.000 description 3
239000011734 sodium Substances 0.000 description 3
IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 2
238000001354 calcination Methods 0.000 description 2
230000006872 improvement Effects 0.000 description 2
239000011777 magnesium Substances 0.000 description 2
238000005259 measurement Methods 0.000 description 2
239000002245 particle Substances 0.000 description 2
239000011164 primary particle Substances 0.000 description 2
230000008569 process Effects 0.000 description 2
239000000047 product Substances 0.000 description 2
150000004760 silicates Chemical class 0.000 description 2
229910052708 sodium Inorganic materials 0.000 description 2
238000012546 transfer Methods 0.000 description 2
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
229910018068 Li 2 O Inorganic materials 0.000 description 1
FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
239000004372 Polyvinyl alcohol Substances 0.000 description 1
229910004298 SiO 2 Inorganic materials 0.000 description 1
PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
230000009471 action Effects 0.000 description 1
239000000654 additive Substances 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
239000003963 antioxidant agent Substances 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
230000005540 biological transmission Effects 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
239000011575 calcium Substances 0.000 description 1
229910052791 calcium Inorganic materials 0.000 description 1
CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
235000013539 calcium stearate Nutrition 0.000 description 1
239000008116 calcium stearate Substances 0.000 description 1
230000008859 change Effects 0.000 description 1
229910052681 coesite Inorganic materials 0.000 description 1
230000000295 complement effect Effects 0.000 description 1
239000004020 conductor Substances 0.000 description 1
229910052906 cristobalite Inorganic materials 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
230000007812 deficiency Effects 0.000 description 1
238000000151 deposition Methods 0.000 description 1
XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000005611 electricity Effects 0.000 description 1
KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 1
229910000271 hectorite Inorganic materials 0.000 description 1
238000010335 hydrothermal treatment Methods 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
229910052744 lithium Inorganic materials 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
239000011707 mineral Substances 0.000 description 1
230000005693 optoelectronics Effects 0.000 description 1
230000001590 oxidative effect Effects 0.000 description 1
229910052760 oxygen Inorganic materials 0.000 description 1
239000001301 oxygen Substances 0.000 description 1
238000006116 polymerization reaction Methods 0.000 description 1
239000002244 precipitate Substances 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
229910052682 stishovite Inorganic materials 0.000 description 1
229920003048 styrene butadiene rubber Polymers 0.000 description 1
238000003786 synthesis reaction Methods 0.000 description 1
229910052905 tridymite Inorganic materials 0.000 description 1
238000012795 verification Methods 0.000 description 1
229920002554 vinyl polymer Polymers 0.000 description 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1

Images

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/385—Oxides, hydroxides or carbonates
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]

Definitions

the invention relates to a novel printing medium having both good electrical conductivity and good printability.
a current trend in the field of print media, especially playing cards, is the ability to record information on these media using both a traditional printing technique and a detectable data writing technique. by appropriate reading means.
the transmitted information is readable only with the aid of appropriate reading devices and is not in principle recognizable by optical means.
the invention therefore aims to provide a printed medium, comprising printed information, which can also be detected other than by strictly optical devices.
the patent FR 2370323 already provided for recording information on a support using conductive ink, and to read the information thus printed using a corona generator sensitive to differences in conductivity in the support.
the disadvantage in this technique is the absence of a direct measurement of electrical conductivity, which can lead to significant loss of information, especially in the case where the medium is intended to transmit precise identification or verification information. .
the Applicant has therefore attached, in a first step, to provide a device for reading the electrical conductivity that allows a simple measurement, direct and transmissible to a computer and, in a second step, to improve the electrical conductivity of a layer applied to an information carrier by selecting a suitable conductive pigment.
the conductive layer used is a layer based on a magnesium fluorosilicate sold under the name "LAPONITE” by Rockwood Additives Limited (UK).
This synthetic pigment resembles, both because of its structure and its chemical composition, a natural mineral hectorite.
the resulting product is filtered, washed, dried and milled to produce a finely divided white powder.
the silicates thus synthesized can then have the following empirical chemical formula: Na 0.7 + [(Si 8 Mg 5.5 Li 0.3 ) O 20 (OH) 2.5 F 1.5 ] 0.7-
the fluorosilicate powder When added to water, the fluorosilicate powder disperses rapidly to primary particles.
These primary particles are comparable to disk-shaped crystals with a diameter of between 20 and 30 nm and a thickness of about 1 nm.
each fluorosilicate unit contained in the crystal has a charge deficiency of -0.7.
the Applicant therefore carried out tests by depositing a layer based on calcium carbonate or kaolin, which pigments are frequently used to improve the printability of the printing-writing papers, and based on "LAPONITE" on a support intended to be printed. conductivity of said support being able to be detected, thereafter, using a reading device as shown in Figure 1.
a first object of the invention is therefore to provide a printing medium having both good electrical conductivity and good printability.
the Applicant therefore envisaged adding a coating pigment giving the paper an ink absorption capacity greater than that of traditional coating pigments, such as kaolin or calcium carbonate.
the fixing of the ink on the paper is generally the result of two complementary processes: the absorption of the fraction of the ink suitable for conveying the color pigment, generally of fine oils, and often containing the necessary antioxidants storage stability and oxidative polymerization of the "hard” resins or varnishes left on the surface of the paper, this fraction also containing the ink pigments.
Coated papers are particularly suitable for high quality printing because the ink vehicle part is easily absorbed into the layer by capillary action, while the varnish and pigment are left on the surface where they have a better effect.
the varnish therefore has difficulty in fixing.
Some coating pigments are therefore used to increase the ink absorption capacity of the layer.
the Applicant has therefore preferred the use of coating pigment having an oil absorption capacity of at least about 80 g / 100 g pigment.
Another object of the invention is therefore to provide a printing medium covered with a layer, in which the coating pigments impart to the paper a good ink absorption capacity and limit the dusting phenomenon during the coating. impression.
the present invention thus provides a printing medium coated with an electrically conductive layer, wherein said conductive layer contains at least one electrically conductive synthetic pigment and at least one coating pigment having an absorption capacity of oil greater than 80 g / 100 g pigment as measured using American standard ASTM Standards D 2414.
the conductive synthetic pigment is a magnesium fluorosilicate.
the coating pigment is an amorphous silica, said silica preferably having an oil absorption capacity of about 200 g / 100 g pigment as measured using US ASTM Standards. D 2414.
the layer contains a mixture of magnesium fluorosilicate, amorphous silica and calcium carbonate.
the layer contains a mixture of 20 to 100 parts by dry weight of magnesium fluorosilicate, 0 to 80 parts by dry weight of calcium carbonate and 0 to 10 parts by dry weight of amorphous silica, and advantageously, from 60 to 80 parts by dry weight of magnesium fluorosilicate, from 20 to 40 parts by dry weight of calcium carbonate and from 2 to 5 parts by dry weight of amorphous silica.
the printing medium has an optical density of less than 0.8, optical density determined using the fürbau printing test and for a drying time of 15 seconds.
the printing medium has a surface resistivity of less than 10 ohms, resistivity determined using US ASTM D257-99 and a relative humidity of 10%.
the printing medium contains information in the form of an insulating pattern deposited on the conductive layer, said insulating pattern defining, preferably in combination with the underlying conductive layer, a bar code, in which the bars are of varying widths and are alternately conductive and insulating.
the print medium contains information read using a device sensitive to electrical conductivity changes and subsequently transmitted to a computer for storage and possible treatment.
the present invention also provides a playing card comprising a print medium as defined above.
a coating composition is applied using a dragging coater. comprising a pigment of the calcium carbonate type at a rate of 12 g / m 2 .
a composition coating comprising a magnesium fluorosilicate conductive synthetic pigment at a rate of 4 g / M 2 .
a composition coating material comprising a synthetic magnesium fluorosilicate conductive pigment and a kaolin pigment at a rate of 5.1 g / m 2 .
a composition coating comprising a magnesium fluorosilicate conductive synthetic pigment and a kaolin pigment at a rate of 5 g / m 2 .
a composition coating comprising a magnesium magnesium fluorosilicate conductive synthetic pigment and a calcium carbonate pigment at a rate of 5.2 g / m 2 .
a composition coating material comprising a synthetic magnesium fluorosilicate conductive pigment and a calcium carbonate type pigment at a rate of 4.9 g / m 2 .
a composition coating material comprising a magnesium fluorosilicate conductive synthetic pigment and an amorphous silica pigment at a rate of 5.1 g / m 2 .
a composition coating material comprising a magnesium fluorosilicate conductive synthetic pigment and an amorphous silica pigment at a rate of 5.1 g / m 2 .
a composition coating composition comprising a synthetic magnesium fluorosilicate conductive pigment, a calcium carbonate type pigment and a silica pigment at a rate of 5.5 g / m 2 .
a composition coating composition comprising a synthetic magnesium fluorosilicate conductive pigment, a calcium carbonate type pigment and a silica pigment at a rate of 5.5 g / m 2 .
a composition coating material comprising a synthetic magnesium fluorosilicate conductive pigment, a calcium carbonate type pigment and a silica type pigment at a rate of 4.8 g / m 2 .
a composition coating material comprising a synthetic magnesium fluorosilicate conductive pigment, a calcium carbonate type pigment and a silica-type pigment at a rate of 4 g / m 2 .
the Applicant has carried out a number of tests to assess in particular the electrical conductivity and printability of the paper obtained.
Figure 1 shows, schematically, a possible tubular configuration of this electronic pen (30).
It consists of a tip electrode (22) and a second electrode (24).
the electrode (22) is configured to provide a flat circular contact with a diameter of about 1 mm. It is tensioned by spring, not exceeding a maximum voltage of 0.1 N so as not to damage the surface of the support.
the second electrode (24) is constituted by the aluminum tubular body of the pen (30).
the hand of the operator comes into contact with the external surface of the pen, and thereby with the electrode (24), and completes the electrical circuit formed between the conductive support and the tip electrode (22).
An energy source is arranged to apply a voltage of 6 volts across the electrodes (22,24).
the measuring device comprises a preamplifier (31) and a voltage oscillator-translator (32).
the high input impedance preamplifier (31) produces a 50-fold gain in the input of the oscillator (32).
the input value of the oscillator (32) varies according to whether the electrode (22) is in contact or not with a conductive part of the support, ie whether or not there is an electrical circuit between the two electrodes.
a variation of the input of the oscillator (32) produces a variation in the frequency of the output signal, and this frequency change is used to detect the contacting of the electrode (22) with a conductive or insulating zone of the support.
the oscillator (32) has been configured so that contacting the electrode (22) with a conductive portion of the medium produces an output of frequency 11 kHz and a contact between the electrode (22) with an insulating part produces a frequency output of 4 kHz.
the signal from the oscillator (32) then flows in a coaxial cable (35) of small diameter, terminated by a plug (36), this plug being inserted into an input terminal of a computer so as to allow the storing and analyzing the input signal by said computer.
the coated paper conventionally used for offset printing has a high electrical resistivity and therefore a low electrical conductivity.
the pen test confirms that the layer does not transmit information due to this low conductivity.
Comparative Example 2 which corresponds to the conductive layer containing a conductive pigment but no pigment improving the printability, on the contrary, a low resistivity and therefore a high conductivity are observed.
the pen test is therefore positive.
optical density in the smear test is greater than 0.8, after 15 sec of drying, which should be judged to be insufficient for offset printing of acceptable quality.
Example 3 a variable amount of coating pigment traditionally used to improve printability, namely kaolin and calcium carbonate, was added to the conductive layer of Example 2.
Example 7 a variable rate of amorphous silica having a better oil absorption rate than kaolin and calcium carbonate was added to the conductive layer of Example 2.
the paper undergoes a noticeable tearing during the printing, which can be annoying for a quality offset printing.
the Applicant therefore used an amorphous silica content in the layer of less than 10 parts by dry weight, and preferably less than 5 parts by dry weight, to avoid these dusting phenomena and compensated by a rate of variable calcium carbonate.
Example 11 It is actually verified in Example 11 that a magnesium fluorosilicate content of less than 20 parts by dry weight results in unacceptable electrical conductivity.

Landscapes

Chemical & Material Sciences (AREA)
Dispersion Chemistry (AREA)
Paper (AREA)
Paints Or Removers (AREA)
Parts Printed On Printed Circuit Boards (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Photoreceptors In Electrophotography (AREA)
Developing Agents For Electrophotography (AREA)

EP03775453A 2002-09-30 2003-09-29 Support d'impression possedant a la fois une bonne conductivite electrique et une bonne imprimabilite Expired - Lifetime EP1552057B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
FR0212095A FR2845099B1 (fr)	2002-09-30	2002-09-30	Support d'impression possedant a la fois une bonne conductivite electrique et une bonne imprimabilite
FR0212095		2002-09-30
PCT/FR2003/002855 WO2004029358A2 (fr)	2002-09-30	2003-09-29	Support d'impression possedant a la fois une bonne conductivite electrique et une bonne imprimabilite

Publications (2)

Publication Number	Publication Date
EP1552057A2 EP1552057A2 (fr)	2005-07-13
EP1552057B1 true EP1552057B1 (fr)	2006-11-08

Family

ID=31985346

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03775453A Expired - Lifetime EP1552057B1 (fr)	2002-09-30	2003-09-29	Support d'impression possedant a la fois une bonne conductivite electrique et une bonne imprimabilite

Country Status (10)

Country	Link
US (1)	US20060234013A1 (da)
EP (1)	EP1552057B1 (da)
AT (1)	ATE344849T1 (da)
AU (1)	AU2003283481A1 (da)
DE (1)	DE60309601T2 (da)
DK (1)	DK1552057T3 (da)
ES (1)	ES2277128T3 (da)
FR (1)	FR2845099B1 (da)
PT (1)	PT1552057E (da)
WO (1)	WO2004029358A2 (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2436634A (en) *	2006-03-28	2007-10-03	Avantone Oy	Machine readable code system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB9321171D0 (en) *	1993-10-13	1993-12-01	Wiggins Teape Group The Limite	Improved printability paperboards
EP0732218A1 (en) *	1995-03-16	1996-09-18	Agfa-Gevaert N.V.	Ink-receiving layers for ink-jet recording elements
US5989696A (en) *	1996-02-13	1999-11-23	Fort James Corporation	Antistatic coated substrates and method of making same
JPH1086536A (ja) *	1996-09-19	1998-04-07	Sony Corp	被記録材及び記録方法

2002
- 2002-09-30 FR FR0212095A patent/FR2845099B1/fr not_active Expired - Fee Related
2003
- 2003-09-29 DK DK03775453T patent/DK1552057T3/da active
- 2003-09-29 DE DE2003609601 patent/DE60309601T2/de not_active Expired - Fee Related
- 2003-09-29 AU AU2003283481A patent/AU2003283481A1/en not_active Abandoned
- 2003-09-29 ES ES03775453T patent/ES2277128T3/es not_active Expired - Lifetime
- 2003-09-29 US US10/529,542 patent/US20060234013A1/en not_active Abandoned
- 2003-09-29 PT PT03775453T patent/PT1552057E/pt unknown
- 2003-09-29 AT AT03775453T patent/ATE344849T1/de not_active IP Right Cessation
- 2003-09-29 EP EP03775453A patent/EP1552057B1/fr not_active Expired - Lifetime
- 2003-09-29 WO PCT/FR2003/002855 patent/WO2004029358A2/fr not_active Ceased

Also Published As

Publication number	Publication date
PT1552057E (pt)	2007-02-28
US20060234013A1 (en)	2006-10-19
ES2277128T3 (es)	2007-07-01
FR2845099B1 (fr)	2005-02-11
EP1552057A2 (fr)	2005-07-13
WO2004029358A2 (fr)	2004-04-08
FR2845099A1 (fr)	2004-04-02
AU2003283481A1 (en)	2004-04-19
ATE344849T1 (de)	2006-11-15
DE60309601D1 (de)	2006-12-21
DK1552057T3 (da)	2007-03-05
DE60309601T2 (de)	2007-09-13
HK1082778A1 (en)	2006-06-16
WO2004029358A3 (fr)	2004-08-05
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