WO2002025011A1 - Gravure paper - Google Patents
Gravure paper Download PDFInfo
- Publication number
- WO2002025011A1 WO2002025011A1 PCT/JP2001/008234 JP0108234W WO0225011A1 WO 2002025011 A1 WO2002025011 A1 WO 2002025011A1 JP 0108234 W JP0108234 W JP 0108234W WO 0225011 A1 WO0225011 A1 WO 0225011A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- paper
- pulp
- gravure
- printing paper
- gravure printing
- Prior art date
Links
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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/22—Agents rendering paper porous, absorbent or bulky
- D21H21/24—Surfactants
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
Definitions
- the present invention relates to an uncoated gravure printing paper excellent in suitability for Dalavia printing, having an excellent effect of improving the adhesion between the gravure plate and the paper and improving speckles.
- Gravure printing is intaglio printing, and gravure printing paper is required to have high adhesion to the plate during printing. If the adhesion is poor, the transfer property of the ink during printing is poor. In particular, so-called halftone spots (speckles) are likely to occur in the halftone portion, and the printing quality is reduced. High smoothness and cushioning properties are required to increase the adhesion. This is because if the smoothness is high, the contact with the gravure plate will be dense, and if the cushioning property is high, the paper will be deformed by the printing pressure during printing and the adhesion to the gravure plate will increase. As a result, the specifications are reduced and the print quality is improved.
- pulp filler is being selected as a material composing the paper.
- For pulp mix mechanical pulp (grand pulp, refiner ground pulp, etc.) as much as possible to improve cushioning properties, and use chemical pulp with soft fibers.
- Dalavia paper usually contains about 30% of an internal filler, which is generally less than about 20% of offset printing paper, etc. Many fillers are blended. After various other auxiliaries are blended as materials, the paper is made and then subjected to super calendering to develop high smoothness.
- smoothness is improved by selecting a filler having a particle size as small as possible and having a plate-like structure.
- the present inventors have conducted intensive studies on a method for improving the specifications of gravure printing paper in addition to the selection of pulp and filler, and as a result, when a certain organic chemical was mixed
- the present inventors have found that the speckle is improved, and arrived at the present invention. That is, the present invention is a gravure printing paper containing a substance having an action of inhibiting the inter-fiber bonding of pulp.
- a so-called surfactant having a hydrophobic group and a hydrophilic group has this action. It is not limited to surfactants as long as they inhibit binding.
- a low-density agent (or a bulking agent) put on the market for papermaking to increase the bulk of paper is suitable as the binding inhibitor of the present invention, and is disclosed in, for example, WO 9.8 / 03730.
- the bulky chemicals on sale include BASF's Sulsol VL, Bayer's BioVolume P Liquid, and Kao's KB—08T, KB—08W, KB—110, and KB.
- binding inhibitors have the effect of improving the speckle of Dalavia printing paper, and the reason is not clear, but is presumed as follows.
- the above-mentioned bulking agent or low-density agent as a binding inhibitor lowers the density of the paper by mixing it and makes the paper bulky, but gravure printing paper is treated with a super calendar to obtain high smoothness. As a result, the obtained paper does not become bulky or low density.
- the printing pressure is applied during gravure printing, the fibers move according to the pressure, because part of the bond between the fibers is cut by the bond inhibitor and the fiber slippage is improved. It is presumed that as a result of the paper being more easily adhered to the Daravia plate, the ink on the gravure plate is more likely to be transferred, and the speckle is improved.
- the present invention has a basic configuration of gravure printing paper containing a substance having an action of inhibiting pulp interfiber bonding.
- the gravure printing paper of the present invention has a lowering rate of tensile strength in the papermaking direction specified in JISP 8113 in the blending ratio of 0.3% by weight per absolute dry pulp weight than that of the non-blended pulp. % Of a pulp having a function of inhibiting inter-fiber bonding.
- the gravure printing paper of the present invention is characterized in that it contains 5 to 40 % filler as ash in the paper in the above composition.
- the gravure printing paper of the present invention has a gravure plate that has the above-mentioned characteristics, and has a function of inhibiting pulp fiber-to-fiber bonding, even if the density and the smoothness are almost the same.
- the excellent effect that the adhesion of the paper is improved and the speckle is improved can be obtained.
- the binding inhibitor is preferably added in an amount of 0.01 to 10% by weight, particularly preferably 0.2 to 1.5% by weight, based on the absolute dry weight of the pulp constituting the Dalavia printing paper.
- the addition will improve speckle. If the addition is too high, the inter-fiber bond inhibition becomes too large, the strength is excessively reduced, and troubles such as paper breakage tend to occur. Therefore, in the above-mentioned test of the decrease in tensile strength, it is preferable that the rate of decrease in tensile strength when 0.3% by weight is added to the absolute dry weight of pulp is in the range of 5% to 40%.
- the gravure printing paper of the present invention may be a raw material pulp, such as chemical pulp (bleached or unbleached kraft panolep of softwood, bleached or unbleached kraft pulp of hardwood), mechanical pulp (grand pulp, thermomechanical pulp, chemithermomechanical pulp, etc.) ), Deinked pulp may be used alone or mixed at an arbitrary ratio.
- chemical pulp bleached or unbleached kraft panolep of softwood, bleached or unbleached kraft pulp of hardwood
- mechanical pulp grand pulp, thermomechanical pulp, chemithermomechanical pulp, etc.
- Deinked pulp may be used alone or mixed at an arbitrary ratio.
- the pH of the gravure printing paper of the present invention may be acidic, neutral or alkaline.
- known fillers such as kaolin, talc, hydrated silicic acid, white carbon, carbonated carbon dioxide, titanium oxide, and synthetic resin filler can be used.
- the filler content is preferably from 5 to 40% by weight, particularly preferably from 10 to 35% by weight, as ash in paper. Within this range, the smoothness and glossiness are improved and are suitable as gravure printing paper. If the ash content in the paper exceeds 40% by weight, the strength decreases significantly.
- the gravure printing paper of the present invention may contain a sulfated band, a sizing agent, a paper strength enhancer, a retention improver, a coloring agent, a dye, an antifoaming agent, and the like, if necessary.
- the Dalavia printing paper of the present invention may be coated with a surface treatment agent to impart sizing property / surface strength.
- the water-soluble polymer used include starch, enzyme-modified starch, thermochemically modified starch, oxidized starch, esterified starch, etherified starch, cationized starch, and other starches, polyvinyl alcohol, fully saponified polyvinyl alcohol, Polyvinyl alcohols such as saponified polyvinyl alcohol, carboxyl-modified polyvinyl alcohol, silanol-modified polyvinyl alcohol, cation-modified polyvinyl alcohol, alkyl-terminated polyvinyl alcohol, polyacrylamide, cationic polyacrylamide, anionic Examples include polyacrylamides such as polyacrylamide and amphoteric polyacrylamide, and celluloses such as carboxymethylcellulose, hydroxyshethyl cellulose, and methylcellulose. These may be used alone or as a mixture of two or more.
- the binding inhibitor to be used can be selected, for example, by the following test.
- test paper Press and dry according to the method of 8209 to prepare test paper. Regarding the drying conditions, drying was performed at 50 ° C. for 1 hour using a blow dryer. 23. Use this test sheet. C. After standing for 24 hours in an environment with a relative humidity of 50%, the tensile strength in the papermaking direction is measured in accordance with JIS P 8113. The substance capable of reducing the tensile strength in the papermaking direction is the binding inhibitor of the present invention.
- a sample with a very small decrease rate has little effect of improving speckle, so it is necessary to add a large amount of it.Thus, a sample with a large decrease rate has an effect of improving speckle by adding a small amount. . Therefore, any material can be used as long as it reduces the tensile strength, but a material having a reduction rate of about 5% to 40% when 0.3% by weight is added is particularly preferable.
- the present invention will be described in detail with reference to Examples, but the present invention is not limited thereto.
- Softwood bleached kraft pulp (NBKP, freeness CSF 550 ml) and mixed pulp consisting of 30 parts by weight of refiner ground pulp (RGP) are 1% slurry.
- a paper stock was prepared by adding and mixing so as to be 0.3% by weight per dry weight. This paper was made into paper at a rotational speed of 900 rpm using a laboratory oriented paper machine manufactured by Kumagai Riki Co., Ltd. so as to have a basis weight of 60 gZm 2, and was pressed and dried according to the method of JISP 8209.
- treatment was performed at 50 ° C for 1 hour using a blow dryer to obtain test paper for testing. After leaving this test paper at a temperature of 23 ° C. and a relative humidity of 50% for 24 hours, the tensile strength in the papermaking direction was measured according to JIS P8113.
- NBKP freeness CSF550ml 30 parts by weight of pulp content, RGP70 parts, Indonesia force Olin as a filler was formulated as in paper ash content is 30 weight 0/0, as the binding inhibitor Kao Corp. KB - 08 W and to prepare a stock was added to a 0.1 wt% pulp absolute dry weight per basis weight 60 g / m 2 in a laboratory orientation paper machine (manufactured by Kumagai rickshaw) Paper was made as follows.
- the pH during papermaking was adjusted to 4.5 by adding a sulfuric acid band.
- the ground paper was treated with an experimental super force renderer such that the Oken type smoothness was 1000 ⁇ 100 seconds to obtain gravure printing paper.
- Gravure printing paper was obtained in the same manner as in Example 1, except that KBO-08W manufactured by Kao Corporation was added as a binding inhibitor so as to be 0.4% by weight based on the absolute dry weight of pulp.
- Kao Corporation's KB-08W as a binding inhibitor is 0.8 weight per absolute dry weight of pulp.
- a gravure printing paper was obtained in the same manner as in Example 1 except that the gravure printing paper was added so as to be / 0 .
- Example 1 Sulsol VL manufactured by BASF as a binding inhibitor was 0.8% by weight based on the absolute dry weight of pulp. Dalavia printing paper was obtained in the same manner as in Example 1 except that the stock was prepared by blending so as to be / 0 .
- Daravia printing paper was obtained in the same manner as in Example 5, except that the stock was prepared without adding the binding inhibitor.
- a mixture of Indonesian kaolin and light carbonic acid ruthenium at a ratio of 5: 1 is used so that the pulp content is 30 parts by weight of NBKP (freeness: CSF550ml), the RGP is 70 parts by weight, and the filler in the paper is 30% by weight of ash.
- paper stock is prepared by adding Kao Corporation KB-08W to 0.8% by weight based on the absolute dry weight of the pulp to prepare a paper stock. Paper was made to have a basis weight of 60 gZm 2 . The pH during papermaking was adjusted to pH 7.5 by adding a sulfuric acid band. The hand-made paper was processed by a laboratory super calendar to obtain gravure printing paper.
- binding inhibitors tend to have smoothness due to calendering, but in this test, smoothness was evaluated at an equivalent level.
- the binding inhibitors improve the speckle of gravure printing paper, not the low density and high smoothness of these agents, but rather inhibit the inter-fiber binding, as the researchers infer. It is thought that the improved slippage between the fibers improves the adhesion to the gravure printing plate and improves speckle.
- the adhesiveness between the gravure plate and the paper is improved by incorporating a substance having an action of inhibiting the inter-fiber bond of the pulp into the paper, and the speckle is improved.
- Gravure printing paper with an excellent effect of improving I was able to.
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- Paper (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/381,228 US20050150625A1 (en) | 2000-09-25 | 2001-09-21 | Gravure paper |
EP01970183A EP1329552A4 (en) | 2000-09-25 | 2001-09-21 | HELIOGRAVURE PAPER |
AU2001290255A AU2001290255A1 (en) | 2000-09-25 | 2001-09-21 | Gravure paper |
NO20031339A NO20031339L (no) | 2000-09-25 | 2003-03-24 | Dyptrykkspapir |
US11/625,199 US7670458B2 (en) | 2000-09-25 | 2007-01-19 | Method of manufacturing gravure paper |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000291197 | 2000-09-25 | ||
JP2000-291197 | 2000-09-25 | ||
JP2001-255554 | 2001-08-27 | ||
JP2001255554A JP2002173895A (ja) | 2000-09-25 | 2001-08-27 | グラビア印刷用紙 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10381228 A-371-Of-International | 2001-09-21 | ||
US11/625,199 Continuation US7670458B2 (en) | 2000-09-25 | 2007-01-19 | Method of manufacturing gravure paper |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002025011A1 true WO2002025011A1 (en) | 2002-03-28 |
Family
ID=26600688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/008234 WO2002025011A1 (en) | 2000-09-25 | 2001-09-21 | Gravure paper |
Country Status (6)
Country | Link |
---|---|
US (1) | US7670458B2 (ja) |
EP (1) | EP1329552A4 (ja) |
JP (1) | JP2002173895A (ja) |
AU (1) | AU2001290255A1 (ja) |
NO (1) | NO20031339L (ja) |
WO (1) | WO2002025011A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7670458B2 (en) | 2000-09-25 | 2010-03-02 | Nippon Paper Industries Co., Ltd. | Method of manufacturing gravure paper |
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-
2001
- 2001-08-27 JP JP2001255554A patent/JP2002173895A/ja active Pending
- 2001-09-21 WO PCT/JP2001/008234 patent/WO2002025011A1/ja active Application Filing
- 2001-09-21 AU AU2001290255A patent/AU2001290255A1/en not_active Abandoned
- 2001-09-21 EP EP01970183A patent/EP1329552A4/en not_active Withdrawn
-
2003
- 2003-03-24 NO NO20031339A patent/NO20031339L/no not_active Application Discontinuation
-
2007
- 2007-01-19 US US11/625,199 patent/US7670458B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06212598A (ja) * | 1993-01-19 | 1994-08-02 | New Oji Paper Co Ltd | 軽量キャストコート紙 |
JPH09209297A (ja) * | 1996-01-26 | 1997-08-12 | Nippon Paper Ind Co Ltd | 艶消し軽量塗工紙及びその製造方法 |
JPH1112993A (ja) * | 1997-06-13 | 1999-01-19 | Tokushu Paper Mfg Co Ltd | 印刷適性の優れた低密度紙の製造方法 |
JPH11200285A (ja) * | 1998-01-13 | 1999-07-27 | Kao Corp | 紙用嵩高剤 |
JPH11200284A (ja) * | 1998-01-13 | 1999-07-27 | Kao Corp | 紙用嵩高剤 |
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JPH11279990A (ja) * | 1998-03-31 | 1999-10-12 | Mitsubishi Paper Mills Ltd | グラビア印刷用塗工紙 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7670458B2 (en) | 2000-09-25 | 2010-03-02 | Nippon Paper Industries Co., Ltd. | Method of manufacturing gravure paper |
Also Published As
Publication number | Publication date |
---|---|
NO20031339L (no) | 2003-05-09 |
US7670458B2 (en) | 2010-03-02 |
US20070113996A1 (en) | 2007-05-24 |
JP2002173895A (ja) | 2002-06-21 |
AU2001290255A1 (en) | 2002-04-02 |
NO20031339D0 (no) | 2003-03-24 |
EP1329552A1 (en) | 2003-07-23 |
EP1329552A4 (en) | 2004-03-24 |
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