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WO2008084372A1 - Procédé de fabrication de papier à poids réduit, de carton fin et de carton, et composés obtenus avec ce procédé - Google Patents

Procédé de fabrication de papier à poids réduit, de carton fin et de carton, et composés obtenus avec ce procédé Download PDF

Info

Publication number
WO2008084372A1
WO2008084372A1 PCT/IB2008/000017 IB2008000017W WO2008084372A1 WO 2008084372 A1 WO2008084372 A1 WO 2008084372A1 IB 2008000017 W IB2008000017 W IB 2008000017W WO 2008084372 A1 WO2008084372 A1 WO 2008084372A1
Authority
WO
WIPO (PCT)
Prior art keywords
manufacturing paper
compound
cardboard
cardboard according
paper
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.)
Ceased
Application number
PCT/IB2008/000017
Other languages
English (en)
Inventor
Clemente Nicolucci
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.)
Lecce Pen Co SpA
Original Assignee
Lecce Pen Co SpA
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.)
Filing date
Publication date
Application filed by Lecce Pen Co SpA filed Critical Lecce Pen Co SpA
Priority to US12/522,164 priority Critical patent/US20100139878A1/en
Publication of WO2008084372A1 publication Critical patent/WO2008084372A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • D21H21/50—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 form
    • D21H21/52—Additives of definite length or shape
    • D21H21/54—Additives of definite length or shape being spherical, e.g. microcapsules, beads
    • 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
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/35—Polyalkenes, e.g. polystyrene
    • 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
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/57—Polyureas; Polyurethanes

Definitions

  • the present invention concerns a method for preparing compounds for the manufacture of paper or cardboard or thin cardboard both in paper machines on an industrial scale and manually, according to traditional handicraft techniques.
  • the present invention also concerns the compounds obtained with the above mentioned method.
  • the paper usually manufactured both in paper machines and with handicraft techniques consists of fibrous, generally vegetable raw materials, felted together and then dried.
  • the material that is most commonly used for manufacturing paper is constituted by cellulose fibres obtained from trees or plants in general.
  • the surface of the raw paper is then covered using a range of additives that form a coat.
  • the coating agents are generally starch, polyvinyl acetate (PVA) and many other products suitable for making different types of paper.
  • PVA polyvinyl acetate
  • a drawback is due to the fact that normally the paper produced, when it is bulky, is also rather heavy and difficult to transport.
  • a further drawback is due to the fact that paper manufacturing costs are a consequence of the high quantity of cellulose fibres used and of felled trees.
  • the object of the present invention is to carry out a compound for manufacturing paper and/or cardboard and/or thin cardboard that, considering the same volume produced, greatly reduces its weight and consequently makes it easier to transport for the user.
  • a further object of the present invention is to carry out a compound that solves the problem of the damage to the backbone due to the excessive weight carried.
  • the present invention concerning a compound for the manufacture of paper or cardboard, whose main principles are in accordance with the contents of the first claim, as well as a method for the production of the above mentioned compound.
  • the compound carried out according to the invention allows the apparent specific weight of copy or printing paper to be reduced from 1.0 to at least 0.5.
  • the compound carried out according to the invention allows the paper to be recycled with no need for any separation of the material from which it is made.
  • the compound carried out according to the invention allows paper and cardboard to be manufactured that are more elastic and flexible than the paper and cardboard of known type.
  • the production of paper and cardboard is achieved by using virgin cellulose fibres and/or fibres recycled before or after use, even if with the addition of suitable auxiliary substances like bonding agents, mineral fillers, starches and coating agents, in combination with a water dispersion of substances that expand when heated and generate closed microbubbles.
  • suitable auxiliary substances like bonding agents, mineral fillers, starches and coating agents
  • the microbubbles that expand when heated, in order to function as expanding agents for the paper panel in the most suitable way are added to the fibre suspension (that is, the paper pulp) before the addition of the suitable cohesion agents.
  • Cationic starch in solution has resulted to be particularly suitable and effective.
  • the cationic starch in solution has been normally employed here before the formation of the fibre panel that takes place on the paper wire.
  • the temperature of the drying cylinders (or of the drying plate, if the paper is handmade) must exceed 11O 0 C and at such temperatures the contact time of the paper panel, in which also the cellulose bonds form, must be sufficient to ensure the drying of the sheet with at least 88% of dry material.
  • a dispersion of Expancel ® were added to a water dispersion having a dry concentration usually included between 0.4% and 7%, constituted by 100 kg of whitened cellulose obtained from fir, by 280 kg of whitened cellulose obtained from eucalyptus and by 50 kg of micronized calcium carbonate.
  • This type of bonding agent makes paper suitable for writing with water inks.
  • This pulp is always kept under slight agitation and then mixed with 7.5 kg of cationic starch dry solution, with the purpose of obtaining good retention and increasing the number of bonding contacts between fibres, auxiliary substances and expandable bubbles.
  • paper was impregnated in the size press of the paper machine with a 3% dry solution of maize starch.
  • the manufacturing speed of the paper strip was 50 m/min.
  • the drying cylinders coinciding with the points of formation of the cellulose bonds were adjusted at a temperature ranging between 115°C and 125°C.
  • This pulp is always kept under slight agitation and then mixed with 7.5 kg of cationic starch dry solution, with the purpose of obtaining good retention and increasing the number of bonding contacts between fibres, auxiliary substances and expandable bubbles.
  • the drying cylinders coinciding with the points of formation of the cellulose bonds were adjusted at a temperature ranging between 115°C and 125 0 C.
  • paper was impregnated in the size press of the paper machine with a 3.5% dry solution of maize starch.
  • the manufacturing speed of the paper strip was 50 m/min.
  • paper is manufactured using 20 % of Expancel ® .
  • Expancel ® dispersion consisting of particles having a diameter of a few microns were used.
  • the dispersion of Expancel ® was added to a water dispersion constituted by 90 kg of whitened cellulose obtained from fir, by 240 kg of whitened cellulose obtained from eucalyptus and by 30 kg of micronized calcium carbonate.
  • This pulp was always kept under slight agitation and then mixed with 7.5 kg of cationic starch dry solution, with the purpose of obtaining good retention and - -
  • the manufacturing speed of the paper strip was 50 m/min.
  • the drying cylinders coinciding with the points of formation of the cellulose bonds were adjusted at a temperature ranging between 115°C and 125°C.
  • the paper was impregnated in the size press of the paper machine with a 4% dry solution of maize starch.
  • Tab.1 Composition of industrial paper pulps.
  • Example 1 the pulp described in Example 1 , with the addition of all its constituent parts, was partially used to produce handmade paper sheets.
  • the fibre suspension was brought to the usual use concentrations, always kept under slight agitation, filtered on the wire of the handmade paper panel according to the traditional manufacturing techniques, pressed and detached from the forming wire, and then transferred onto normal dry felts, and wet- pressed following the usual techniques.
  • the fibre panel has then assumed such a consistency as to be able to be easily separated from the absorbing agents.
  • the paper or cardboard panel is laid and let to dry in the air at ambient temperature.
  • the handmade paper sheets still quite humid (40-70% of water) were transferred onto a drying plate with temperature adjusted at 120 0 C and provided with a counter-felt exerting a slight pressure. In these conditions, handmade cellulose sheets were obtained in a few seconds.
  • the paper obtained according to the examples described has a natural, valuable aspect and is also pleasant to touch.
  • microbubbles like Avancell ® (copolymers of acrylonitrile) and Micropearl ® (copolymers of divinylbenzene).
  • colloidal agents it is possible to use cationic agents, anionic agents, non-ionic agents alone or mixed with each other and/or in a different time frequency with colloids and/or retaining and/or fixing agents that at the same time considerably increase the physical-mechanical characteristics of the finished paper panel of papers and cardboards.
  • non-ionic agent is polyoxypropylene that, thanks to its high specific weight, allows a considerable quantity of product to be saved when combined with a cationic or anionic agent.

Landscapes

  • Paper (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

L'invention concerne un composé de fabrication de papier ou carton, comprenant un mélange de fibres de cellulose et de substances thermo-dilatables adaptées pour générer des microbulles fermées, dans une dispersion aqueuse, et dans lequel le mélange contient également des substances additives comme des agents liants, des charges minérales, des amidons de coatine.
PCT/IB2008/000017 2007-01-05 2008-01-04 Procédé de fabrication de papier à poids réduit, de carton fin et de carton, et composés obtenus avec ce procédé Ceased WO2008084372A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/522,164 US20100139878A1 (en) 2007-01-05 2008-01-04 Method for Manufacturing Reduced-Weight Paper, Thin Cardboard and Cardboard, and Compounds Obtained Therewith

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000005A ITVI20070005A1 (it) 2007-01-05 2007-01-05 Metodo per la fabbricazione della carta, cartoncino e cartone dematerializzati e compound realizzati con tale metodo
ITVI2007A000005 2007-01-05

Publications (1)

Publication Number Publication Date
WO2008084372A1 true WO2008084372A1 (fr) 2008-07-17

Family

ID=39323758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000017 Ceased WO2008084372A1 (fr) 2007-01-05 2008-01-04 Procédé de fabrication de papier à poids réduit, de carton fin et de carton, et composés obtenus avec ce procédé

Country Status (3)

Country Link
US (1) US20100139878A1 (fr)
IT (1) ITVI20070005A1 (fr)
WO (1) WO2008084372A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110083819A1 (en) * 2008-05-30 2011-04-14 Unicharm Corporation Bulky paper with rugged pattern and process for producing the same
US8449718B2 (en) 2008-05-30 2013-05-28 Unicharm Corporation Bulky paper with concavo-convex pattern and process for producing thereof
WO2014051876A1 (fr) 2012-09-27 2014-04-03 Henkel Corporation Adhésifs à base d'eau pour substrats multicouches de masse surfacique réduite et leur utilisation
US9273230B2 (en) 2012-11-16 2016-03-01 Henkel IP & Holding GmbH Hot melt assist waterborne adhesives and use thereof
US9849655B2 (en) 2013-11-27 2017-12-26 Henkel IP & Holding GmbH Adhesive for insulative articles
US10100204B2 (en) 2014-07-23 2018-10-16 Henkel IP & Holding GmbH Expandable coating compositions and use thereof
US10100231B2 (en) 2010-09-10 2018-10-16 Henkel IP & Holding GmbH Adhesive having structural integrity and insulative properties
US10208429B2 (en) 2010-09-10 2019-02-19 Henkel IP & Holding GmbH Adhesive having insulative properties
US11773297B2 (en) 2017-07-18 2023-10-03 Henkel Ag & Co., Kgaa Dielectric heating of foamable compositions
US11833788B2 (en) 2018-02-16 2023-12-05 Henkel Ag & Co, Kgaa Method for producing a multi-layer substrate
US11926134B2 (en) 2017-08-25 2024-03-12 Henkel Ag & Co. Kgaa Process for forming improved protective eco-friendly pouch and packaging and products made therefrom
US12157619B2 (en) 2017-08-25 2024-12-03 Henkel Ag & Co. Kgaa Process for forming improved protective eco-friendly pouch and packaging and products made therefrom

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9981797B2 (en) 2015-04-20 2018-05-29 Pratt Corrugated Holdings, Inc. Nested insulated packaging
US10266332B2 (en) 2015-05-04 2019-04-23 Pratt Corrugated Holdings, Inc. Adjustable insulation packaging
US10583977B2 (en) 2016-08-16 2020-03-10 Mp Global Products, L.L.C. Method of making an insulation material and an insulated mailer
US10800595B2 (en) 2017-04-07 2020-10-13 Pratt Retail Specialties, Llc Box liner
US10442600B2 (en) 2017-04-07 2019-10-15 Pratt Retail Specialties, Llc Insulated bag
US10604304B2 (en) 2017-05-09 2020-03-31 Pratt Retail Specialties, Llc Insulated bag with handles
US10954057B2 (en) 2017-05-09 2021-03-23 Pratt Retail Specialties, Llc Insulated box
US10551110B2 (en) 2017-07-31 2020-02-04 Pratt Retail Specialties, Llc Modular box assembly
US10947025B2 (en) 2017-12-18 2021-03-16 Pratt Corrugated Holdings, Inc. Insulated block packaging assembly
US10507968B2 (en) 2017-12-18 2019-12-17 Pratt Retail Specialties, Llc Modular box assembly
US10807761B2 (en) 2018-03-01 2020-10-20 Pratt Corrugated Holdings, Inc. Fastener-free packaging
USD874268S1 (en) 2018-05-04 2020-02-04 Pratt Corrugated Holdings, Inc. Mechanically secured box
US11059652B2 (en) 2018-05-24 2021-07-13 Pratt Corrugated Holdings, Inc. Liner
US11066228B2 (en) 2018-11-13 2021-07-20 Pratt Retail Specialties, Llc Insulated box assembly and temperature-regulating lid therefor
US10875678B2 (en) 2018-11-13 2020-12-29 Pratt Retail Specialties, Llc Box insert with vertical rails
US10882684B2 (en) 2019-05-02 2021-01-05 Pratt Retail Specialties, Llc Box defining walls with insulation cavities
US11027875B2 (en) 2019-05-02 2021-06-08 Pratt Retail Specialties, Llc Telescoping insulated boxes
US11230404B2 (en) 2019-11-26 2022-01-25 Pratt Corrugated Holdings, Inc. Perforated collapsible box
US11718464B2 (en) 2020-05-05 2023-08-08 Pratt Retail Specialties, Llc Hinged wrap insulated container
USD968950S1 (en) 2020-08-10 2022-11-08 Pratt Corrugated Holdings, Inc. Perforated collapsible box
US12270153B2 (en) 2021-02-11 2025-04-08 Pratt Corrugated Holdings, Inc. Starch-cellulose composite material

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EP0445914A1 (fr) * 1990-02-02 1991-09-11 Hercules Incorporated Composition portante et procédé
EP0565244A1 (fr) * 1992-04-10 1993-10-13 Rohm And Haas Company Particules de polymères
GB2307487A (en) * 1995-11-22 1997-05-28 Portals Ltd Process for producing security paper
US6139961A (en) * 1998-05-18 2000-10-31 Rohm And Haas Company Hollow sphere organic pigment for paper or paper coatings
EP1197503A2 (fr) * 2000-10-12 2002-04-17 Rohm And Haas Company Procédé de préparation de dispersions aqueuses de polymères
US20020104632A1 (en) * 1999-12-16 2002-08-08 Graciela Jimenez Opacity enhancement of tissue products with thermally expandable microspheres
EP1602783A2 (fr) * 2004-04-23 2005-12-07 Rohm And Haas Company Procédé de fabrication de papier
JP2006028654A (ja) * 2004-07-13 2006-02-02 Meisei Kagaku Kogyo Kk 熱発泡性シート及びその製造方法、並びに当該熱発泡性シートを用いた低密度発泡シートの製造方法
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EP0445914A1 (fr) * 1990-02-02 1991-09-11 Hercules Incorporated Composition portante et procédé
EP0565244A1 (fr) * 1992-04-10 1993-10-13 Rohm And Haas Company Particules de polymères
GB2307487A (en) * 1995-11-22 1997-05-28 Portals Ltd Process for producing security paper
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EP1197503A2 (fr) * 2000-10-12 2002-04-17 Rohm And Haas Company Procédé de préparation de dispersions aqueuses de polymères
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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8778137B2 (en) 2008-05-30 2014-07-15 Unicharm Corporation Bulky paper with concavo-convex pattern and process for producing thereof
US8449718B2 (en) 2008-05-30 2013-05-28 Unicharm Corporation Bulky paper with concavo-convex pattern and process for producing thereof
US8580080B2 (en) * 2008-05-30 2013-11-12 Unicharm Corporation Process for producing bulky paper with concavo-convex pattern
US20110083819A1 (en) * 2008-05-30 2011-04-14 Unicharm Corporation Bulky paper with rugged pattern and process for producing the same
US11427963B2 (en) 2010-09-10 2022-08-30 Henkel Ag & Co, Kgaa Adhesive having insulative properties
US10100231B2 (en) 2010-09-10 2018-10-16 Henkel IP & Holding GmbH Adhesive having structural integrity and insulative properties
US10208429B2 (en) 2010-09-10 2019-02-19 Henkel IP & Holding GmbH Adhesive having insulative properties
WO2014051876A1 (fr) 2012-09-27 2014-04-03 Henkel Corporation Adhésifs à base d'eau pour substrats multicouches de masse surfacique réduite et leur utilisation
US9657200B2 (en) 2012-09-27 2017-05-23 Henkel IP & Holding GmbH Waterborne adhesives for reduced basis weight multilayer substrates and use thereof
US11970634B2 (en) 2012-09-27 2024-04-30 Henkel Ag & Co. Kgaa Waterborne adhesives for reduced basis weight multilayer substrates and use thereof
US11459490B2 (en) 2012-09-27 2022-10-04 Henkel Ag & Co, Kgaa Waterborne adhesives for reduced basis weight multilayer substrates and use thereof
EP3575490A1 (fr) 2012-09-27 2019-12-04 Henkel IP & Holding GmbH Adhésifs à base d'eau pour la réduction du poids de base de substrats multicouches et leur utilisation
US10815397B2 (en) 2012-09-27 2020-10-27 Henkel IP & Holding GmbH Waterborne adhesives for reduced basis weight multilayer substrates and use thereof
US11193048B2 (en) 2012-09-27 2021-12-07 Henkel IP & Holding GmbH Waterborne adhesives for reduced basis weight multilayer substrates and use thereof
US9273230B2 (en) 2012-11-16 2016-03-01 Henkel IP & Holding GmbH Hot melt assist waterborne adhesives and use thereof
US10099459B2 (en) 2013-11-27 2018-10-16 Henkel IP & Holding GmbH Adhesive for insulative articles
US9849655B2 (en) 2013-11-27 2017-12-26 Henkel IP & Holding GmbH Adhesive for insulative articles
US10100204B2 (en) 2014-07-23 2018-10-16 Henkel IP & Holding GmbH Expandable coating compositions and use thereof
US11773297B2 (en) 2017-07-18 2023-10-03 Henkel Ag & Co., Kgaa Dielectric heating of foamable compositions
US11926134B2 (en) 2017-08-25 2024-03-12 Henkel Ag & Co. Kgaa Process for forming improved protective eco-friendly pouch and packaging and products made therefrom
US12157619B2 (en) 2017-08-25 2024-12-03 Henkel Ag & Co. Kgaa Process for forming improved protective eco-friendly pouch and packaging and products made therefrom
US11833788B2 (en) 2018-02-16 2023-12-05 Henkel Ag & Co, Kgaa Method for producing a multi-layer substrate
US12325213B2 (en) 2018-02-16 2025-06-10 Henkel Ag & Co. Kgaa Method for producing a multi-layer substrate

Also Published As

Publication number Publication date
US20100139878A1 (en) 2010-06-10
ITVI20070005A1 (it) 2008-07-06

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