EP0447471A1 - Printing paper, process for manufacturing it and its use. - Google Patents
Printing paper, process for manufacturing it and its use.Info
- Publication number
- EP0447471A1 EP0447471A1 EP90900830A EP90900830A EP0447471A1 EP 0447471 A1 EP0447471 A1 EP 0447471A1 EP 90900830 A EP90900830 A EP 90900830A EP 90900830 A EP90900830 A EP 90900830A EP 0447471 A1 EP0447471 A1 EP 0447471A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing paper
- starch granules
- printing
- weight
- paper according
- 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
- 238000007639 printing Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 39
- 238000000576 coating method Methods 0.000 claims abstract description 33
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 229920002472 Starch Polymers 0.000 claims abstract description 31
- 239000008107 starch Substances 0.000 claims abstract description 31
- 235000019698 starch Nutrition 0.000 claims abstract description 31
- 239000008187 granular material Substances 0.000 claims abstract description 23
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 19
- 239000011230 binding agent Substances 0.000 claims abstract description 11
- 238000007646 gravure printing Methods 0.000 claims abstract description 8
- 238000007645 offset printing Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims description 13
- 239000000049 pigment Substances 0.000 claims description 12
- 238000005299 abrasion Methods 0.000 claims description 8
- 239000008199 coating composition Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 235000013339 cereals Nutrition 0.000 claims description 4
- 240000008042 Zea mays Species 0.000 claims description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 3
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 3
- 235000005822 corn Nutrition 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229940100486 rice starch Drugs 0.000 claims description 3
- 240000003183 Manihot esculenta Species 0.000 claims description 2
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 241000209056 Secale Species 0.000 claims description 2
- 235000007238 Secale cereale Nutrition 0.000 claims description 2
- 244000061456 Solanum tuberosum Species 0.000 claims description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 claims description 2
- 241000209140 Triticum Species 0.000 claims description 2
- 235000021307 Triticum Nutrition 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 238000003490 calendering Methods 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims 1
- 239000011505 plaster Substances 0.000 claims 1
- 229940088417 precipitated calcium carbonate Drugs 0.000 claims 1
- 239000000976 ink Substances 0.000 description 9
- 241000294754 Macroptilium atropurpureum Species 0.000 description 7
- 239000002987 primer (paints) Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 229920002261 Corn starch Polymers 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004816 latex Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 2
- 235000019759 Maize starch Nutrition 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 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
- 238000007385 chemical modification Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000008120 corn starch Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001254 oxidized starch Substances 0.000 description 1
- 235000013808 oxidized starch Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000001040 synthetic pigment Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
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
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/54—Starch
Definitions
- the invention relates to a printing paper according to the preamble of claim 1, which is to be used in particular for offset or gravure printing. Furthermore, the invention relates to a method for producing the printing paper and its use.
- DE-AS 12 21 893 describes the production of coated printing papers, starch being made partially cold-soluble by mechanical treatment in a pan mill, so that it is still dissolved in the drying after the coating process by the evaporating water of the coating slip and in a dissolved or gelatinized form in a manner known per se. as a binder to fix the pigments like chalk.
- the papers produced are certified to have a high gloss. The problem of the rub resistance of the printing inks is not addressed.
- banknote paper is known in which to avoid fiber detachment and to increase the resistance to soiling, the surface is provided with a coating which contains 0.5 to 10 parts by weight of very fine rice starch and, if appropriate, further inorganic pigments from a special plastic binder. The problem of abrasion resistance does not arise with such papers.
- Matte printing papers have the great advantage that, on the one hand, the printed products produced with them do not produce any annoying light reflections and, on the other hand, in conjunction with suitable printing inks, the actual printing, in particular the multi-color printing, has a very excellent printing gloss, which increases the quality of the printing product.
- Calcium carbonate has been widely used in the past few years to produce such matt-coated printing papers.
- Scrub resistance is understood to mean the resistance of an ink layer against mechanical stress due to pressure load and friction during the further processing of the printed sheets and when using the finished printed products.
- the object of the present invention is therefore to provide a matt-coated printing paper which has improved abrasion resistance and reduced susceptibility to glossy strips.
- the invention provides the characteristic features of a printing paper according to the preamble of claim 1.
- Claims 2 to 9 identify preferred design options for the printing paper.
- a method for producing the matte coated printing paper is specified in claims 10 and 11 and the use of the printing paper in claim 12.
- non-gelatinized starch granules which are practically present as a coating pigment in the coating in an amount of 10 to 65% by weight, based on the dry content of the coating for taking up the printing ink, the coating being a further pigment Calcium carbonate contains, a paper suitable for the production of high-quality printing work can be produced, the rub resistance and susceptibility to gloss streak development is significantly improved.
- coated paper according to the invention can now also be used to provide smooth, but non-glossy papers for the gravure printing process, as are required in particular for printed products with long runs.
- the printing paper according to the invention preferably contains starch granules whose gelatinization temperature is increased by chemical modification known per se. Such a modification is very preferably achieved by the starch granules designated in the characterizing part of claims 3 and 4, the gelatinization temperature being able to be influenced by the choice of the degree of etherification or esterification.
- the size of the starch granules is expediently chosen depending on the average size of the calcium carbonate pigment. Starch granules with an average grain diameter of 7 ⁇ m to 50 ⁇ m are preferred, but starch granules with an average grain diameter of 15 to 25 ⁇ m are particularly preferred.
- the selection can be made using the known separation techniques, such as hydrocyclone separation according to DE-OS 2341570. In particular, the following may be considered as non-gelatinized starch granules: corn, potato, wheat, rye, rice or tapioca starch. However, corn or potato starches are particularly preferred since they are sufficiently available and inexpensive.
- the line for taking up the printing ink can also contain other white pigments known and customary in paper coating technology.
- Common coating kaolins, titanium dioxide to increase whiteness and opacity, satin white to increase whiteness, gypsum as an inexpensive pigment from flue gas desulphurization plants, talc, but also known synthetic pigments based on silicate, aluminum oxide or plastic can also be used.
- the proportion of these pigments should expediently not exceed 15% by weight, based on the solids content of the coating, with all proportions, including binders and auxiliaries, adding up to 100% by weight.
- a method according to the invention for producing the printing paper according to the invention consists in the fact that a conventional coating base paper with a basis weight of
- the coating composition in addition to calcium carbonate, also containing 10 to 65% by weight of unglazed starch granules contains on their solids content.
- the coating slip contains 5 to 14% by weight, preferably less than 10% by weight, of conventional binders such as plastic latices, gelatinized, degraded starch or other known binders from paper coating technology, dispersants, optionally further white pigments and viscosity regulators.
- the solids content of this coating slip is set to 40 to 72% by weight, preferably 55 to 63% by weight.
- the viscosity of this coating slip is set to 500 to 4000 m Pas, measured with the Brookfield viscometer, spindle no. 4 at 50 rpm. A higher viscosity for the roll order and a lower viscosity for the doctor blade, air brush or blade application are preferred, it being possible to adjust the viscosity by adding customary, known water-soluble polymers, such as polyvinyl alcohol, carboxymethyl cellulose or polyacrylic acid derivatives.
- the pH of the coating slip to be applied is 8 to 10, preferably 8.8 to 9.2 and is adjusted during the preparation of the coating slip, if necessary by adding alkali.
- the non-gelatinized starch When preparing the coating slip, it has proven to be particularly preferred to add the non-gelatinized starch to the batch as the last component in order to avoid excessive shear of the starch granules. If higher amounts of starch granules are added to the batch, it is advisable to increase the proportion of inorganic or organic dispersants to 0.5 to 1 part by weight, since it has been shown that native, non-gelatinized starch results in a dilatant flow behavior of the coating slip.
- the paper coated with it is dried to a final moisture content of 92 to 96% dry using known drying processes, such as IR emitters, hot air floating dryers or cylinder dryers, and then trimmed to the desired roll or format width.
- coated paper produced in this way is to be used for gravure printing, it is subjected to a calender treatment known per se, with 2 to 8 roller nip passes producing the necessary smoothness on the paper at a line pressure of 50 to 400 da N / cm, without a noticeable increase in gloss to cause.
- a common primer formulation contains, for example, 100 parts by weight of ground chalk with a grain size of 70% ⁇ 2 ⁇ m, 10 parts by weight of oxidized, gelatinized starch and 9 parts by weight of a styrene-butadiene plastic binder as a binder, as well as other auxiliaries for pH and viscosity control as calcium carbonate pigment .
- the solids content of such a primer is depending on the application of the primer from 55 to 72 % By weight atro adjusted, the line application per side being chosen between 6 to 15 g / m atro.
- the method according to the invention can be used to produce matt papers coated on one or both sides.
- plastic latex binder 0.5 parts by weight of urea formaldehyde resin
- the coated papers each have one
- the pick test was determined in accordance with the information sheet for the IGT device, and the evaluation was carried out using a rating scale from 1 to 6.
- the unsaturated patterns of Examples 1 to 3 and the comparative example were used to produce proofs with a defined amount of ink, so-called weighed proofs, with the test printing device from fürbau. After the printing ink had dried through for at least 24 hours, the abrasion resistance test was carried out using the Oser abrasion resistance tester under defined conditions. The printed surface is rubbed against the same side or the back of the Paper, each unprinted, for a period of 3 minutes with a load of 625 g. The assessment can be made visually or by contrast measurement with the Elrepho device at the unprinted point. The visual assessment with a grade of 1 to 6 resulted in the following classification of the examples:
- the examples according to the invention have a substantially lower gloss than the comparative example, both in the unsatinated and in the satin state, and that the so-called matt effect increases with increasing proportion of native undisturbed starch in the coating slip, without the susceptibility of the unsatinated dried line increases to form gloss streaks.
- the coated paper is satinized, on the one hand the gloss does not increase significantly above the value of the unsatinated comparative example, but on the other hand a sufficient smoothness increase can be achieved which makes the printing paper according to the invention suitable for the gravure printing process.
Landscapes
- Paper (AREA)
Abstract
Un papier couché mat pour impression offset ou héliogravure contient dans la pâte de couchage contenant l'encre d'impression, outre du carbonate de calcium et des liants, une quantité de granules d'amidon non empâtés comprise entre 10 et 65 % en poids.A matt coated paper for offset printing or gravure printing contains in the coating paste containing the printing ink, in addition to calcium carbonate and binders, an amount of unpasted starch granules of between 10 and 65% by weight.
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90900830T ATE81168T1 (en) | 1988-12-07 | 1989-12-01 | PRINTING PAPER, PROCESS FOR ITS MANUFACTURE AND ITS USE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3841199A DE3841199A1 (en) | 1988-12-07 | 1988-12-07 | PRINTED PAPER, METHOD FOR ITS MANUFACTURE AND ITS USE |
DE3841199 | 1988-12-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0447471A1 true EP0447471A1 (en) | 1991-09-25 |
EP0447471B1 EP0447471B1 (en) | 1992-09-30 |
Family
ID=6368639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90900830A Expired - Lifetime EP0447471B1 (en) | 1988-12-07 | 1989-12-01 | Printing paper, process for manufacturing it and its use |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0447471B1 (en) |
DE (2) | DE3841199A1 (en) |
ES (1) | ES2035747T3 (en) |
FI (1) | FI98235C (en) |
WO (1) | WO1990006399A2 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4207690C1 (en) * | 1992-03-11 | 1993-09-09 | Zanders Feinpapiere Ag, 51465 Bergisch Gladbach, De | |
JPH0757848B2 (en) * | 1992-04-02 | 1995-06-21 | マールブルガー、タペーテンファブリク、ヨット、ベー、シェーファー、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング、ウント、コンパニー、コマンディット、ゲゼルシャフト | Method for producing a three-dimensional surface structured coating for wall and floor surfaces and structural paste therefor |
DE4213746C2 (en) * | 1992-04-25 | 1996-03-07 | Feldmuehle Ag Stora | Print media with a line on one or both sides |
DE19537427C1 (en) | 1995-10-07 | 1997-02-27 | Feldmuehle Ag Stora | Paper with a cast coating |
DE19706574C2 (en) * | 1997-02-20 | 1999-07-08 | Stora Publication Paper Ag | Paper coated with a coating method, process for its production and its use |
DE10153565A1 (en) * | 2001-10-30 | 2003-05-22 | Ctp Papierhilfsmittel Gmbh & C | Process for the production of papers which are particularly suitable for the ink jet printing process, and coating slip for surface treatment of such papers |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1043193A (en) * | 1975-02-14 | 1978-11-28 | Douglas C. Edwards | Coating of paper |
DE2632744C2 (en) * | 1976-07-21 | 1978-10-19 | Feldmuehle Ag, 4000 Duesseldorf | Surface coating material for the production of surface-modified wood-based materials |
-
1988
- 1988-12-07 DE DE3841199A patent/DE3841199A1/en not_active Withdrawn
-
1989
- 1989-12-01 DE DE9090900830T patent/DE58902391D1/en not_active Expired - Lifetime
- 1989-12-01 ES ES199090900830T patent/ES2035747T3/en not_active Expired - Lifetime
- 1989-12-01 EP EP90900830A patent/EP0447471B1/en not_active Expired - Lifetime
- 1989-12-01 WO PCT/EP1989/001428 patent/WO1990006399A2/en active IP Right Grant
-
1991
- 1991-06-05 FI FI912707A patent/FI98235C/en active
Non-Patent Citations (1)
Title |
---|
See references of WO9006399A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO1990006399A3 (en) | 1990-07-12 |
FI98235B (en) | 1997-01-31 |
EP0447471B1 (en) | 1992-09-30 |
FI98235C (en) | 1997-05-12 |
DE58902391D1 (en) | 1992-11-05 |
WO1990006399A2 (en) | 1990-06-14 |
FI912707A0 (en) | 1991-06-05 |
ES2035747T3 (en) | 1993-04-16 |
DE3841199A1 (en) | 1990-06-13 |
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