EP0415385A1 - Méthode pour fabriquer du papier - Google Patents

Méthode pour fabriquer du papier Download PDF

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Publication number
EP0415385A1
EP0415385A1 EP90116567A EP90116567A EP0415385A1 EP 0415385 A1 EP0415385 A1 EP 0415385A1 EP 90116567 A EP90116567 A EP 90116567A EP 90116567 A EP90116567 A EP 90116567A EP 0415385 A1 EP0415385 A1 EP 0415385A1
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EP
European Patent Office
Prior art keywords
starch
weight
paper
phosphorus atoms
granules
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
Application number
EP90116567A
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German (de)
English (en)
Other versions
EP0415385B1 (fr
Inventor
Sumiitsu Yoshida
Tomohiro Akita
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.)
Sanwa Starch Co Ltd
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Sanwa Starch Co Ltd
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Filing date
Publication date
Application filed by Sanwa Starch Co Ltd filed Critical Sanwa Starch Co Ltd
Publication of EP0415385A1 publication Critical patent/EP0415385A1/fr
Application granted granted Critical
Publication of EP0415385B1 publication Critical patent/EP0415385B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch

Definitions

  • the present invention relates to a method of making paper and paper board using a modified spray starch in order to improve paper surface strength, web strength and/or plybond strength and the like.
  • Spray starch which has been generally used in paper industry, is roughly classified into two kinds.
  • One is raw starch (for example, corn starch, potato starch, tapioca starch and the like) and the other is modified starch (for example, starch urea phosphate, acetylated starch, and the like.).
  • the raw starch has a higher gelatinization temperature than the modified starch and thus can­not be sufficiently gelatinized in paper machines currently used.
  • the raw starch cannot sufficiently increase the plybond strength and thus causes ply separation of multiply paper board.
  • the raw starch granules tend to pass through the web with the process water and hence decrease the retention of the starch granules sprayed in the wet web. As a result, problems have occurred in that sufficient strength can not be given to the paper board, the paper machine being stained, and the load of the waste-water treatment system being increased.
  • the modified starch particularly starch urea phosphate, usually has a gelatinization temperature which has been lowered from its original gelatinization temperature within the range of from 5 to 20 °C and thus can be sufficiently gelatinized in a drying part of prevailing paper machines.
  • the starch urea phosphate contributes to the improvement of strength properties of paper and paper board, since starch urea phosphate sprayed in the wet web is excellently retained. It has been known, how­ever, that the conventional starch urea phosphate has serious drawbacks. That is to say, the conventional starch urea phosphate frequently causes wire filling on a paper machine and thus leads to serious troubles, such as machine shut-down.
  • starch urea phosphate which is commonly used contains phosphorus atoms chemically bonded to the starch in a quantity of 0.3 to 1.5 % by weight and phosphorus atoms present as cold-water soluble phosphorous compounds in the starch in a quantity of 0.15 to 1.5 % by weight.
  • Modified starches other than starch urea phosphate, for example acetylated starch, having a gelatinization temperature of 35 to 55 °C are sufficiently gelatinized in a dryer part of paper machine, but the starch retention in the wet web is extremely poor and the strength properties of paper and paper board are inferior to that obtained using starch urea phosphate.
  • the present invention provides a starch urea phosphate for paper making which has a gelatinization temperature of 35 to 55 °C and contains phosphorus atoms chemically bonded to the starch in an amount of at least 0.4 % by weight, and phosphorus atoms present as cold-water soluble phosphorous compounds in the starch in an amount of 0.1% by weight or less.
  • the content of phosphorus atoms chemically bonded with starch is 0.4 % by weight or more.
  • the maximum content of phosphorus atoms bonded with starch is not specially limited, but an increase of a quantity of phosphoric acid, salts thereof and the like added in a reaction mixture tends to increase the quantity of non-reacted phosphorous compounds in the starch, so that it is natural that the content of phosphorus atoms does not exceed 5 % by weight.
  • the content is less than 0.4 % by weight, sufficient retention of starch granules sprayed in the wet web cannot be achieved and excellent strength properties of paper cannot be given to the paper.
  • the content of phosphorus atoms chemically bonded to the starch is preferably 0.4 to 3 % by weight.
  • the starch urea phosphate contains phosphorus atoms present as cold-water soluble phosphorous compounds in the starch (e.g. sodium-, potassium- or ammonium salt and the like of phosphoric acid, phosphorous acid and the like) in a content of 0.1 % by weight or less. If the content is more than 0.1 % by weight, insoluble substances are formed in the pulp slurry to cause wire filling on the paper machine.
  • cold-water herein is water having a temperature of less than room temperature.
  • the gelatinization temperature of the starch urea phosphate according to the present invention is 35 to 55 °C, preferably 40 to 50 °C. If the gelatinization temperature is lower than 35 °C, the starch granules stored in a storage tank may be unnecessarily gelatinized because the temperature often rises to a value above 35 °C during storage. If the gelatinization temperature is higher than 55 °C, the starch granules do not gelatinize sufficiently during the prevailing drying process of the paper machine.
  • the method of producing the starch urea phosphate according to the present invention is basically conventional.
  • the starch used as raw material in the present invention includes corn starch, tapioca starch, potato starch, sweet-potato starch, wheat starch and the like. In addition, it may be partially and/or perfectly (completely) subjected to a treatment of esterification, etherification, oxidation and the like.
  • phosphoric acid or a phosphate to be used is not specially limited, but phosphoric acid, phosphorous acid and primary, secondary and/or tertiary sodium-, potassium- and/or ammonium salts thereof can be used.
  • acids other than the above described phosphoric acid, salts thereof and the like can be used together with the phosphoric acid and phosphates.
  • hydrochloric acid, sulfuric acid, nitric acid, sulfamic acid, maleic acid, succinic acid and acetic acid and salts thereof can be used.
  • oxidizing agents can be used. For example, hydrogen peroxide, ammonium persulfate and the like can be used.
  • starch urea phosphate according to the present invention When the starch urea phosphate according to the present invention is sprayed onto the wet web, it can be used together with raw starch, polyacrylamide, polyvinyl alcohol, polyethyleneimine, polyethyleneoxide and the like.
  • the starch slurry having a concentration of about 0.1 to 5 % is sprayed onto the paper and paper board web by means of spray nozzles fixed in a spray pipe mounted across the wire. Subsequently, the sprayed wet web is dewatered by suction and pressed to dewater, followed by drying in a dryer to obtain the paper, paper board and the like.
  • pulp slurry of which freeness is adjusted by a laboratory beater is placed in an experimental paper machine and dewatered to make web. A starch slurry is sprayed onto the web.
  • a second wet web is placed on the sprayed side of said wet web.
  • the combined web is dewatered by suction to 80 % water content, pressed for further dewatering, and dried on a drum dryer at a desired temperature to obtain the paper and paper board.
  • the gelatinization temperature is the temperature at which a tangetial line of the temperature/viscosity curve of the Brabender Amylogram left from the base line first makes an angle of 45 ° against the base line, as shown in Fig.1.
  • the starch-­concentration is set at 25 % by weight.
  • the present invention provides a starch suitable for paper making.
  • the starch does not deposit insoluble substances on the wire even in a pulp slurry having a low pH, thus effectively preventing wire filling on a paper machine.
  • product A The quantity of phosphorus atoms which are bonded to the starch was 0.66 % by weight based on the dry product and the quantity of phosphorus atoms present as cold-water soluble phosphorous compounds in the starch was 0.08 % by weight, as the result of an elemental analysis.
  • this product is referred to as product A.
  • product B The quantity of phosphorus atoms which are bonded to the starch was 0.51 % by weight (based on the dry product) and the quantity of phosphorous atoms present as cold-water soluble phosphorous compounds in the starch was 0.06 % by weight (based on the dry product) as the result of an elemental analysis.
  • this product is referred to as product B.
  • product D The quantity of phosphorus atoms which are chemically bonded to the starch was 0.42 % by weight (based on the dry product) and the quantity of phosphorus atoms present as cold-water soluble phosphorous compounds in the starch was 0.08 % by weight (based on the dry product) as the result of an elemental analysis.
  • this product is referred to as product D.
  • Aluminium sulfate was added to 375 ml of a 1 % pulp slurry of a needle-leaved tree breached kraft pulp (NBKP) having a freeness (CSF) of 340 ml in a quantity of 1.0 % based on the pulp and the resulting mixture was diluted until 0.03 % in an experimental square type paper machine (25 cm x 25 cm).
  • NNKP needle-leaved tree breached kraft pulp
  • CSF freeness
  • the diluted mixture was dewatered to produce a web and stopped at a point of time when the level of water of the pulp slurry reached 2 cm over the wire, followed by spraying a 1 % slurry of starch shown in Table 1 over the pulp slurry surface, so that the starch will be applied in a quantity of 2 g/m2 based on the dry product. Then, the dewatering was started again to obtain a wet web (having a basis weight of 60 g/m2) as a first ply.
  • test piece (10 cm x 1 cm) was adhered to a metallic plate from which the aimed layer was previously separated by 2 to 3 cm and then pulled in the direction of 90 ° by means of the tensile tester to carry out the separation, whereby measuring the resisting force.
  • the starch having the gelatinization temperature of 60°C or more showed an unsatisfactory value in view of the plybond strength.
  • the starch urea phosphate containing phosphorus atoms bonded with starch in a quantity of 0.36 % or less and having the gelatinization temperature of 42°C, or the starch of which a gelatinization starting temperature was reduced by the acetylation and the like exhibited an improved strength in comparison with the starch having the gelatinization temperature of 60°C or more; it is, however, still insufficient.
  • the starch urea phosphate including starch according to the present invention having the reduced gelatinization temperature and containing phosphorus atoms bonded with starch in a quantity of 0.42 % or more only exhibited the satisfactory plybond strength.
  • potato starch or modified starch therefrom and the starch urea phosphate including starch according to the present invention containing phosphorus atoms bonded with starch in a quantity of 0.42 % or more exhibited the superior value in view of the retention of starch.
  • starch urea phosphate including starch according to the present invention having the reduced gelatinization temperature and containing phosphorus atoms bonded with starch in a quantity of 0.42 % or more exhibits satisfactory results in view of both plybond strength and retention of starch.
  • Starch shown in Table 2 was sprayed between the first ply (pH 4.3) and the second ply (pH 6.5) in a quantity of 2 g/m2 on a cylinder machine (web width: 1,660 mm; paper velocity: 96 m/min) to obtain white paper board having a basis weight of 450 g/m2.
  • Starch shown in Table 3 was sprayed on a pulp slurry having a pH of 4.4 on the wire in a quantity of 0.5 g/m2 on a foundrinier paper machine (web width: 3,700 mm; paper velocity: 420 m/min) to obtain mechanical paper having a basis weight of 82 g/m2.
  • starch urea phosphate including starch according to the present invention containing phosphorus atoms bonded with starch in a quantity of 0.42 % or more exhibited the superior plybond strength in comparison with cornstarch.
  • the starch urea phosphate of which a cold-water soluble phosphorous compounds contains phosphorus atoms in an amount of 0.14 % by weight or more i.e. the urea-phosphated starch outside the claimed range, brought about the wire filling within 3 to 10 days and therefore the machine had to be stopped and cleaned.
  • the starch according to the present invention did not bring about the wire filling even after the continuous operation of one month or more.
  • the starch according to the present invention can exhibit satisfactory properties in view of both plybond strength and the wire filling and thus it can be said to be the ideal spray starch.
  • Merely product B (having a gelatinization temperature of 45°C and containing phosphorus atoms bonded with starch in a quantity of 0.51 %, of which a cold-water soluble phosphorous compound had phosphorus atoms of 0.06 % by weight), exhibited superior results in various kinds of physical properties shown in Table 3 and did not bring about the wire filling.

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  • Paper (AREA)
EP19900116567 1989-08-30 1990-08-29 Méthode pour fabriquer du papier Expired - Lifetime EP0415385B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP223874/89 1989-08-30
JP1223874A JP2788298B2 (ja) 1989-08-30 1989-08-30 抄紙方法

Publications (2)

Publication Number Publication Date
EP0415385A1 true EP0415385A1 (fr) 1991-03-06
EP0415385B1 EP0415385B1 (fr) 1995-11-08

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Application Number Title Priority Date Filing Date
EP19900116567 Expired - Lifetime EP0415385B1 (fr) 1989-08-30 1990-08-29 Méthode pour fabriquer du papier

Country Status (3)

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EP (1) EP0415385B1 (fr)
JP (1) JP2788298B2 (fr)
DE (1) DE69023436T2 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996023104A1 (fr) * 1995-01-24 1996-08-01 National Starch And Chemical Investment Holding Corporation Papier contenant des amidons inhibes thermiquement
US5641349A (en) * 1995-01-24 1997-06-24 National Starch And Chemical Investment Holding Corporation Water-based adhesives containing thermally-inhibited starches
US5718770A (en) * 1994-08-25 1998-02-17 National Starch And Chemical Investment Holding Corporation Thermally-inhibited pregelatinized granular starches and flours and process for their production
US5720822A (en) * 1995-06-07 1998-02-24 National Starch And Chemical Investment Holding Corporation Thermally-inhibited pregelatinized non-granular starches and flours and process for their production
US5830884A (en) * 1995-01-18 1998-11-03 National Starch And Chemical Investment Holding Corporation Pharmaceutical products containing thermally-inhibited starches
US5871756A (en) * 1995-01-18 1999-02-16 National Starch And Chemical Investment Holding Corporation Cosmetics containing thermally-inhibited starches
US5932017A (en) * 1993-07-30 1999-08-03 National Starch And Chemical Investment Holding Corporation Thermally-inhibited non-pregelatinized granular starches and flours and process for their preparation
US6221420B1 (en) 1993-07-30 2001-04-24 National Starch And Chemical Investment Holding Corporation Foods containing thermally-inhibited starches and flours
US6451121B2 (en) 1993-07-30 2002-09-17 National Starch And Chemical Investment Holding Corporation Thermally-inhibited non-pregelatinized granular starches and flours and process for their preparation
US6706145B2 (en) 1998-07-03 2004-03-16 Ahlstrom Gmbh Aqueous adhesive dispersions and the use thereof in the production of multi-layered paper
FR2948696A1 (fr) * 2009-08-03 2011-02-04 Georgia Pacific France Procede de fabrication d'une feuille de papier delitable, feuille de papier delitable, mandrin constitue d'au moins une desdites feuilles
WO2013026788A3 (fr) * 2011-08-19 2014-01-16 Basf Se Sauces de couchage aqueuses à base d'urée, composants de sauces de couchage aqueux à base d'urée et leur utilisation
US8758564B2 (en) 2008-12-18 2014-06-24 Sca Tissue France Water-degradable paper sheet, and tube for a paper roll consisting of such a sheet
US9034478B2 (en) 2008-12-18 2015-05-19 Sca Tissue France Method for making a sheet of degradable paper, use of said sheet for making a mandrel defining a roll carrier, degradable paper sheet, and mandrel including at least one of said sheets
CN104878648A (zh) * 2014-02-28 2015-09-02 金东纸业（江苏）股份有限公司 纸张的制造方法
US12454795B2 (en) 2020-08-14 2025-10-28 The United States Of America, As Represented By The Secretary Of Agriculture Moisture/oil-resistant fiber/starch composite materials

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4585650B2 (ja) * 2000-05-26 2010-11-24 王子コーンスターチ株式会社 繊維シート状物の層間接着剤を用いた抄紙方法
JP4629833B2 (ja) * 2000-05-26 2011-02-09 王子コーンスターチ株式会社 繊維シート状物の層間接着剤及び抄紙方法
JP4527972B2 (ja) * 2003-12-22 2010-08-18 王子コーンスターチ株式会社 省熱貼合用接着剤
JP4594627B2 (ja) * 2004-02-10 2010-12-08 中外写真薬品株式会社 フッ素含有排水の処理方法。
JP7439360B2 (ja) * 2019-12-05 2024-02-28 日本製紙株式会社 飲食品用多層紙

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459632A (en) * 1965-11-17 1969-08-05 Nat Starch Chem Corp Method of making paper containing starch derivatives having both anionic and cationic groups,and the product produced thereby

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62116602A (ja) * 1985-11-18 1987-05-28 Sanwa Denpun Kogyo Kk 尿素・リン酸澱粉の製造方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459632A (en) * 1965-11-17 1969-08-05 Nat Starch Chem Corp Method of making paper containing starch derivatives having both anionic and cationic groups,and the product produced thereby

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPIL,nØ 87-188027,Derwent Publications & JP-A-62116602(SANWA DENPUN) 28-05-87 *

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5932017A (en) * 1993-07-30 1999-08-03 National Starch And Chemical Investment Holding Corporation Thermally-inhibited non-pregelatinized granular starches and flours and process for their preparation
US6221420B1 (en) 1993-07-30 2001-04-24 National Starch And Chemical Investment Holding Corporation Foods containing thermally-inhibited starches and flours
US6451121B2 (en) 1993-07-30 2002-09-17 National Starch And Chemical Investment Holding Corporation Thermally-inhibited non-pregelatinized granular starches and flours and process for their preparation
US5718770A (en) * 1994-08-25 1998-02-17 National Starch And Chemical Investment Holding Corporation Thermally-inhibited pregelatinized granular starches and flours and process for their production
US5830884A (en) * 1995-01-18 1998-11-03 National Starch And Chemical Investment Holding Corporation Pharmaceutical products containing thermally-inhibited starches
US5871756A (en) * 1995-01-18 1999-02-16 National Starch And Chemical Investment Holding Corporation Cosmetics containing thermally-inhibited starches
WO1996023104A1 (fr) * 1995-01-24 1996-08-01 National Starch And Chemical Investment Holding Corporation Papier contenant des amidons inhibes thermiquement
US5641349A (en) * 1995-01-24 1997-06-24 National Starch And Chemical Investment Holding Corporation Water-based adhesives containing thermally-inhibited starches
US5720822A (en) * 1995-06-07 1998-02-24 National Starch And Chemical Investment Holding Corporation Thermally-inhibited pregelatinized non-granular starches and flours and process for their production
US6261376B1 (en) 1995-06-07 2001-07-17 National Starch And Chemical Investment Holding Corporation Thermally-Inhibited pregelatinized non-granular starches and flours
US6706145B2 (en) 1998-07-03 2004-03-16 Ahlstrom Gmbh Aqueous adhesive dispersions and the use thereof in the production of multi-layered paper
US9353482B2 (en) 2008-12-18 2016-05-31 Sca Tissue France Water-degradable paper sheet, and tube for a paper roll consisting of such a sheet
US8758564B2 (en) 2008-12-18 2014-06-24 Sca Tissue France Water-degradable paper sheet, and tube for a paper roll consisting of such a sheet
US9034478B2 (en) 2008-12-18 2015-05-19 Sca Tissue France Method for making a sheet of degradable paper, use of said sheet for making a mandrel defining a roll carrier, degradable paper sheet, and mandrel including at least one of said sheets
US9139957B2 (en) 2009-08-03 2015-09-22 Sca Tissue France Fibrous sheet disintegrating in water, process for manufacturing said fibrous sheet, use of said fibrous sheet for the manufacture of a core
RU2575071C2 (ru) * 2009-08-03 2016-02-10 Джорджия-Пасифик Франс Распадающийся в воде лист из волокнистого материала, способ изготовления такого листа и применение листа из волокнистого материала для изготовления сердечника для рулона из абсорбирующего материала
US10626557B2 (en) 2009-08-03 2020-04-21 Essity Operations France Fibrous sheet that disintegrates in water, process for manufacturing said fibrous sheet, core consisting of strips of said fibrous sheet
WO2011015951A3 (fr) * 2009-08-03 2011-05-05 Georgia-Pacific France Feuille fibreuse qui se désagrège dans l'eau, processus de fabrication de ladite feuille fibreuse, noyau constitué de bandes de ladite feuille fibreuse
AU2010280469B2 (en) * 2009-08-03 2015-02-12 Essity Operations France Fibrous sheet that disintegrates in water, process for manufacturing said fibrous sheet, core consisting of strips of said fibrous sheet
WO2011015951A2 (fr) 2009-08-03 2011-02-10 Georgia-Pacific France Feuille fibreuse qui se désagrège dans l’eau, processus de fabrication de ladite feuille fibreuse, noyau constitué de bandes de ladite feuille fibreuse
US9039651B2 (en) 2009-08-03 2015-05-26 Sca Tissue France Fibrous sheet that disintegrates in water, process for manufacturing said fibrous sheet, core consisting of strips of said fibrous sheet
US9896803B2 (en) 2009-08-03 2018-02-20 Sca Tissue France Fibrous sheet that disintegrates in water, process for manufacturing said fibrous sheet, core consisting of strips of said fibrous sheet
WO2011015948A2 (fr) 2009-08-03 2011-02-10 Georgia-Pacific France Feuille fibreuse se désagrégeant dans l’eau, processus de fabrication de ladite feuille fibreuse, utilisation de ladite feuille fibreuse pour la fabrication d’un noyau
WO2011015948A3 (fr) * 2009-08-03 2011-05-19 Georgia-Pacific France Feuille fibreuse se désagrégeant dans l'eau, processus de fabrication de ladite feuille fibreuse, utilisation de ladite feuille fibreuse pour la fabrication d'un noyau
FR2948696A1 (fr) * 2009-08-03 2011-02-04 Georgia Pacific France Procede de fabrication d'une feuille de papier delitable, feuille de papier delitable, mandrin constitue d'au moins une desdites feuilles
EP3061599A1 (fr) 2009-08-03 2016-08-31 Sca Tissue France Feuille fibreuse qui se délite dans l'eau, procédé pour la réalisation de ladite feuille fibreuse, et utilisation de ladite feuille fibreuse pour la fabrication d'un mandrin
EP3061600A1 (fr) 2009-08-03 2016-08-31 Sca Tissue France Feuille fibreuse qui se délite dans l'eau, procédé pour sa réalisation, mandrin consistant en plusieurs couches de ladite feuille fibreuse
US9518360B2 (en) 2009-08-03 2016-12-13 Sca Tissue France Fibrous sheet disintegrating in water, process for manufacturing said fibrous sheet, use of said fibrous sheet for the manufacture of a core
WO2013026788A3 (fr) * 2011-08-19 2014-01-16 Basf Se Sauces de couchage aqueuses à base d'urée, composants de sauces de couchage aqueux à base d'urée et leur utilisation
CN104878648A (zh) * 2014-02-28 2015-09-02 金东纸业（江苏）股份有限公司 纸张的制造方法
CN104878648B (zh) * 2014-02-28 2018-03-09 金东纸业（江苏）股份有限公司 纸张的制造方法
US12454795B2 (en) 2020-08-14 2025-10-28 The United States Of America, As Represented By The Secretary Of Agriculture Moisture/oil-resistant fiber/starch composite materials

Also Published As

Publication number Publication date
JP2788298B2 (ja) 1998-08-20
DE69023436T2 (de) 1996-04-04
DE69023436D1 (de) 1995-12-14
EP0415385B1 (fr) 1995-11-08
JPH0390695A (ja) 1991-04-16

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