WO2011140628A1 - Procédé de production de papier recyclé - Google Patents

Procédé de production de papier recyclé Download PDF

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Publication number
WO2011140628A1
WO2011140628A1 PCT/CA2011/000503 CA2011000503W WO2011140628A1 WO 2011140628 A1 WO2011140628 A1 WO 2011140628A1 CA 2011000503 W CA2011000503 W CA 2011000503W WO 2011140628 A1 WO2011140628 A1 WO 2011140628A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulp
paper
cotton
wire mesh
mixture
Prior art date
Application number
PCT/CA2011/000503
Other languages
English (en)
Inventor
Rajan Ahluwalia
Original Assignee
Rajan Ahluwalia
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 Rajan Ahluwalia filed Critical Rajan Ahluwalia
Priority to CA2797038A priority Critical patent/CA2797038A1/fr
Publication of WO2011140628A1 publication Critical patent/WO2011140628A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/06—Regulating pulp flow
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/02—Complete machines for making continuous webs of paper of the Fourdrinier type
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • 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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres

Definitions

  • the present invention relates to the field of paper production, and more particularly to a process for producing recycled paper using waste paper and waste cotton material.
  • waste materials such as waste paper and waste clothing.
  • An increasing amount of waste paper such as, for example, office paper and newspaper is collected and used in the manufacture of new paper.
  • Another method of making paper is the use of cotton fibres producing high quality cotton paper of exceptional strength which is generally used for making bank notes.
  • one object of the present invention is to provide a process capable of mixing and adhering waste paper and cotton fibres for producing paper.
  • Another object of the present invention is to provide a process for paper manufacturing using only waste paper and waste cotton material.
  • a method for producing recycled paper Paper pulp and cotton pulp are provided.
  • the cotton pulp is added to the paper pulp to produce a pulp mixture.
  • the pulp mixture is deposited onto a wire mesh for forming a paper web such that a flow rate of the pulp mixture and a speed of a relative movement between a pulp mixture depositing device and the wire mesh is reduced compared to the flow rate and the speed of the relative movement used for depositing only the paper pulp.
  • Paper pulp and cotton pulp are produced from waste paper and waste cotton material, respectively.
  • the cotton pulp is added to the paper pulp to produce a pulp mixture.
  • the pulp mixture is deposited onto a wire mesh for forming a paper web such that a flow rate of the pulp mixture and a speed of a relative movement between a pulp mixture depositing device and the wire mesh is reduced compared to the flow rate and the speed of the relative movement used for depositing only the paper pulp.
  • the wire mesh has a reduced mesh size compared to the mesh size used for depositing only the paper pulp.
  • a further advantage of the present invention is that it provides a process for paper manufacturing using only waste paper and waste cotton material.
  • Figures la to Id are simplified flow diagrams illustrating a process for producing recycled paper according to a preferred embodiment of the invention.
  • Figures 2a to 2c are simplified block diagrams illustrating a preferred implementation of the process for producing recycled paper illustrated in Figures la to Id.
  • FIG. 1 A process for producing recycled paper according to a preferred embodiment of the invention is provided.
  • a preferred implementation 100 of the process for producing recycled paper is illustrated in Figures 2a to 2c.
  • FIG 10A and 10B paper pulp and cotton pulp is provided, respectively.
  • Preferred embodiments for providing the paper pulp and the cotton pulp are illustrated in Figures lb and lc, respectively.
  • waste office paper collected from various offices or elsewhere is fed into a pulper.
  • the pulper is mixer and grinder, where a predetermined amount of the waste paper is mixed with a predetermined amount of water and ground at high speed - 10A.1.
  • At 10A.2 preferably four percent aluminum sulphate and four percent rosin are added to the paper pulp.
  • Aluminum sulphate is added for sizing the stock and for making the paper blot free. Rosin is added for binding the fibers together.
  • other materials and amounts are applicable depending, for example, on the type of material used for producing the paper pulp and the type of recycled paper to be produced.
  • ferrous materials such as, for example, pins, staples, and clips are removed from the paper pulp. The removal of the ferrous materials is performed, for example, by lowering magnets into the paper pulp during the mixing and grinding process. After termination of the pulping the paper pulp is processed - 10A.4 - to remove unwanted non-ferrous material such as, for example, pieces of plastic material.
  • the paper pulp is passed through a screen having a predetermined mesh size large enough for enabling transmission of the paper pulp fibers and small enough to prevent transmission of substantially all unwanted materials.
  • the screened paper pulp is then transferred into an agitator 102 for agitating the paper pulp - 10A.5.
  • a typical agitator 102 is a round well with a motor driven shaft having two or more blades 104 mounted thereto. A slow movement of the blades 104 ensures provision of a consistent paper pulp 106.
  • waste cotton materials such as, for example, waste cotton clothes or cuttings and trimmings from garment factories are used for providing the cotton fibers.
  • the waste cotton materials are sorted, for example, to sort colored cotton materials, and extra fittings such as, for example, buttons and zippers are removed.
  • only cotton materials of a specific color are used for a specific recycled paper product to be produced there from.
  • Mixed color stock is used for producing low grade packaging materials.
  • the cotton material is then cut to a substantially uniform size - 1 OB.2.
  • a predetermined amount of the cut cotton material is then fed into a beater 108 together with a predetermined amount of water and beaten - 10B.3 - for approximately 5 hours using beating element 110 for producing cotton pulp 112.
  • rosin is added to the cotton pulp - 10B.4 - and after four hours of beating aluminum sulphate is added to the cotton pulp - 10B.5.
  • Aluminum sulphate is added for sizing the stock and for making the recycled paper blot free. Rosin is added for binding the fibers together.
  • other materials and amounts are applicable depending, for example, on the type of cotton material used for producing the cotton pulp and the type of recycled paper to be produced.
  • the cotton pulp is then washed - 10B.6 - to remove unwanted materials.
  • the cotton pulp 1 12 is then added to the paper pulp 106 to produce a pulp mixture - 20.
  • the cotton pulp is slowly added to the paper pulp while the same is agitated in the agitator 102.
  • the pulp mixture is agitated - 30 - to ensure provision of a consistent pulp mixture.
  • a predetermined amount of cotton pulp is added to the paper pulp.
  • the amount of cotton pulp added is approximately in the range between 15% and 25% of the paper pulp. Mixing and adhering of the paper pulp fibers and the cotton pulp fibers is substantially improved by adding the cotton pulp to the paper pulp.
  • the pulp mixture is consistent it is provided - 40 - to a headbox 1 18 of a paper making machine such as, for example, a Fourdrinier type paper making machine.
  • a paper making machine such as, for example, a Fourdrinier type paper making machine.
  • the pulp mixture is pumped to the headbox 1 18 using a conventional pulp pump.
  • the pulp mixture is diluted with water 114.
  • the diluted pulp mixture 1 16 is then deposited - 50 - onto a conveying wire mesh 124 forming a paper web of the paper making machine.
  • the diluted pulp mixture 1 16 flows under gravity through nozzle 120 of the headbox 1 18 as indicated by arrow 122 and onto the wire mesh 124 forming pulp layer 126.
  • the pulp layer 126 is then conveyed via the conveying wire mesh - as indicated by the arrow - from the headbox 1 18 to further processing stations of the paper making machine for producing - 60 - paper therefrom, as will be described herein below.
  • the diluted pulp mixture 116 is deposited onto the wire mesh 124 such that a flow rate of the pulp mixture and a speed of a relative movement between the nozzle 120 the wire mesh 124 is reduced compared to the flow rate and the speed of the relative movement used for depositing only the paper pulp.
  • the flow rate as well as the speed of the relative movement is reduced by approximately 25% to 45%.
  • the mesh size the conveying wire mesh 124 is reduced, as illustrated in Figures 2b and 2c.
  • the mesh size is reduced by approximately 20% to 35%.
  • the process for producing recycled paper is also implementable with types of paper making machines including paper making machines having a stationary wire mesh and movable headbox.
  • the pulp layer 126 - or paper sheet - is then processed to remove a first portion of the water - 60.1 - followed by passing it through a plurality of rollers for further drying and calendaring - 60.2.
  • the paper is passed between two rollers pressing the paper.
  • the calendaring process further dries the paper and gives it a glazing effect.
  • the paper is, for example, rolled onto a roller - 60.3 - forming a paper roll for further processing such as printing or, alternatively, cut into sheets and packed in a packet or reem.
  • the process for producing recycled paper according to embodiments of the invention enables production of recycled paper in small quantities for recycling waste paper and waste cotton clothing in smaller communities. Furthermore, the process for producing recycled paper is easily implementable by modifying existing paper making machines to reduce the relative speed between the headbox and the wire mesh and reducing the mesh size.

Abstract

La présente invention concerne, d'une part un procédé de production de papier recyclé, et d'autre part de la pâte à papier ainsi que de la pâte de coton. La pâte de coton est ajoutée à la pâte à papier de façon à produire un mélange de pâtes. Le mélange de pâtes est déposé sur un treillis métallique pour former une feuille de papier continue de façon que le débit du mélange de pâtes et la vitesse de déplacement relatif entre le dispositif déposant le mélange de pâtes et le treillis métallique soient inférieurs respectivement au débit et à la vitesse de déplacement relatif utilisés pour le dépôt de la pâte de papier seule.
PCT/CA2011/000503 2010-05-12 2011-04-29 Procédé de production de papier recyclé WO2011140628A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2797038A CA2797038A1 (fr) 2010-05-12 2011-04-29 Procede de production de papier recycle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2,703,595 2010-05-12
CA 2703595 CA2703595A1 (fr) 2010-05-12 2010-05-12 Procede de fabrication de papier recycle

Publications (1)

Publication Number Publication Date
WO2011140628A1 true WO2011140628A1 (fr) 2011-11-17

Family

ID=44912982

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2011/000503 WO2011140628A1 (fr) 2010-05-12 2011-04-29 Procédé de production de papier recyclé

Country Status (2)

Country Link
CA (2) CA2703595A1 (fr)
WO (1) WO2011140628A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140087195A1 (en) * 2012-09-24 2014-03-27 Honeywell International Inc. Chlorofluoropolymer coated substrates and methods for producing the same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017103689A1 (fr) * 2015-12-15 2017-06-22 Adrian PINTO Compositions de fabrication de papier et procédés associés
HU231176B1 (hu) * 2019-03-20 2021-06-28 Celltech-Paper Kft. Eljárás nedvszívó betétek gyártásakor keletkező, nedves-szilárdító anyaggal legalább részben bevont gyapotszálakat tartalmazó hulladékpapír újrahasznosítására, és az eljárással újrahasznosítható hulladékpapírból készült csomagolóanyag

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2230278A (en) * 1989-04-11 1990-10-17 Seitz Filter Werke Filter material
US5284703A (en) * 1990-12-21 1994-02-08 Kimberly-Clark Corporation High pulp content nonwoven composite fabric
WO1994012328A1 (fr) * 1992-11-25 1994-06-09 E. Khashoggi Industries Compositions a charge elevee de substances inorganiques
WO1996006222A1 (fr) * 1994-08-22 1996-02-29 Sca Hygiene Paper Ab Materiau non tisse comprenant une certaine proportion de fibres recyclees provenant de dechets de non tisses et/ou de textiles
WO1999023290A1 (fr) * 1997-10-30 1999-05-14 Kimberly-Clark Worldwide, Inc. Feuille de support de type tissu et son procede de fabrication
EP1281811A1 (fr) * 2001-08-01 2003-02-05 Canon Kabushiki Kaisha Structure absorbante, poreuse et appareil d'enregistrement à jet d'encre utilisant cette structure
EP1657052A1 (fr) * 2000-05-12 2006-05-17 Kimberly-Clark Worldwide, Inc. Procédé permettant d'augmenter la souplesse de bandes de base et produits en découlant
US20060191655A1 (en) * 2005-01-28 2006-08-31 Nunn Kayren J Composite web and process for manufacture from post-industrial scrap

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2230278A (en) * 1989-04-11 1990-10-17 Seitz Filter Werke Filter material
US5284703A (en) * 1990-12-21 1994-02-08 Kimberly-Clark Corporation High pulp content nonwoven composite fabric
WO1994012328A1 (fr) * 1992-11-25 1994-06-09 E. Khashoggi Industries Compositions a charge elevee de substances inorganiques
WO1996006222A1 (fr) * 1994-08-22 1996-02-29 Sca Hygiene Paper Ab Materiau non tisse comprenant une certaine proportion de fibres recyclees provenant de dechets de non tisses et/ou de textiles
WO1999023290A1 (fr) * 1997-10-30 1999-05-14 Kimberly-Clark Worldwide, Inc. Feuille de support de type tissu et son procede de fabrication
EP1657052A1 (fr) * 2000-05-12 2006-05-17 Kimberly-Clark Worldwide, Inc. Procédé permettant d'augmenter la souplesse de bandes de base et produits en découlant
EP1281811A1 (fr) * 2001-08-01 2003-02-05 Canon Kabushiki Kaisha Structure absorbante, poreuse et appareil d'enregistrement à jet d'encre utilisant cette structure
US20060191655A1 (en) * 2005-01-28 2006-08-31 Nunn Kayren J Composite web and process for manufacture from post-industrial scrap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140087195A1 (en) * 2012-09-24 2014-03-27 Honeywell International Inc. Chlorofluoropolymer coated substrates and methods for producing the same

Also Published As

Publication number Publication date
CA2797038A1 (fr) 2011-11-17
CA2703595A1 (fr) 2011-11-12

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