EP0064309B1 - A process for the manufacturing of paper, particularly corrugated paperboard - Google Patents

A process for the manufacturing of paper, particularly corrugated paperboard Download PDF

Info

Publication number
EP0064309B1
EP0064309B1 EP82200472A EP82200472A EP0064309B1 EP 0064309 B1 EP0064309 B1 EP 0064309B1 EP 82200472 A EP82200472 A EP 82200472A EP 82200472 A EP82200472 A EP 82200472A EP 0064309 B1 EP0064309 B1 EP 0064309B1
Authority
EP
European Patent Office
Prior art keywords
paper
process according
black liquors
black
pulp
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.)
Expired
Application number
EP82200472A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0064309A3 (en
EP0064309A2 (en
Inventor
Emilio Mortarotti
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.)
Cambio Sede via S Salvatore 8 - 03035 Fontana Lir
Original Assignee
Industrial Financial Development Srl
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11182899&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0064309(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Industrial Financial Development Srl filed Critical Industrial Financial Development Srl
Priority to AT82200472T priority Critical patent/ATE25411T1/de
Publication of EP0064309A2 publication Critical patent/EP0064309A2/en
Publication of EP0064309A3 publication Critical patent/EP0064309A3/en
Application granted granted Critical
Publication of EP0064309B1 publication Critical patent/EP0064309B1/en
Expired 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
    • 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
    • D21H17/23—Lignins
    • 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
    • D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
    • 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply
    • D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped

Definitions

  • the present invention relates to a process forthe manufacturing of paper, particularly of paper useful as the intermediate layer ("medium”) of corrugated paper board, and to the thus resulting product.
  • corrugated paper boards in their simplestform, consist of three layers, namely two outer layers, forming the faces of the paper board and called “liners”, and an intermediate, corrugated layer known in the related art as the "medium”.
  • the main purpose of the present invention is that of providing a process for the manufacturing of paper, particularly "medium” paper for corrugated paper board, which permit less valuable raw material to be used, the properties of crush resistance and water repellency being maintained at the same level or, the type and concentration of raw materials being the same, permits the afore said properties to be improved.
  • a more specific purpose of the present invention is that of providing a process of the afore said type which, in the case of the "semichemical" papers, and the physical and mechanical properties being the same particularly the crush strength being the same, permits the contents of wood pulp to be reduced.
  • Another likely more specific purpose of the present invention is that of providing a process of the afore said type which in the case of "fluting" paper, permits the crush strength to be increased by about 20%.
  • a further purpose of the present invention is that of providing a process for the manufacturing of improved paper products, such as cardboards, wherein the "stiffness" it is a qualitatively impor- tantfeature.
  • the black liquors when they are to be used for the treatment of coloured papers, even of light colours, they can be previously treated by partial whitening and subsequent dyeing (for instance by means of H 2 0 2 ) in a per se known manner.
  • the qualifying and fully surprising feature, besides being novel, of the process of the invention is that by coating the paper, already dried to an optimum value of residual moisture content, with the black liquors, also previously concentrated, the resulting product is qualitatively and relevantly improved.
  • the washing and squeezing of the wood particles or chips after the chemical cooling the operation being repeated the most suitable number of times; like treatment is carried out on the pulp obtained from the beating operation as effected on the aforesaid chips, the resulting black liquors being recovered and combined.
  • black liquors useful for the present invention there are contemplated not only those resulting from semichemical and chemical cooking treatments of annual or multiannual plants, as by-products of the paper and/or cellulose manufacturing, but also the black liquors which are purposely produced from plants or wastes of annual and multiannual plants (such as straws of various nature, canes, etc.) saw mill wastes, vine- shoots, sawdusts and generally wood flours.
  • the black liquors are then passed to a concentration plant, comprising two or more stages (depending on the sought concentration degree).
  • the black liquors are produced in the plants for the manufacturing of chemical or semichemical paper starting from wood.
  • the concentration of the black liquors is brought to at least 35 to 40% for transport saving.
  • the resulting black liquors having greater or lesser viscosity and consistence, depending on the concentration degree, are coated onto the paper during its drying step, by means of coating rollers, or of any other suitable device depending on the type of black liquors.
  • the coating of the paper can take place onto one or borh surfaces, or between one sheet and the other in the case of doubled paper, cardboard or paperboard, by using known coupling, coaling and impregnating machines.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Laminated Bodies (AREA)
  • Polarising Elements (AREA)
EP82200472A 1981-05-05 1982-04-20 A process for the manufacturing of paper, particularly corrugated paperboard Expired EP0064309B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82200472T ATE25411T1 (de) 1981-05-05 1982-04-20 Ein verfahren zur herstellung von papier, insbesondere wellenpappe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT21512/81A IT1138300B (it) 1981-05-05 1981-05-05 Procedimento per la produzione di carta,in particolare per cartoni ondulati
IT2151281 1981-05-05

Publications (3)

Publication Number Publication Date
EP0064309A2 EP0064309A2 (en) 1982-11-10
EP0064309A3 EP0064309A3 (en) 1983-08-24
EP0064309B1 true EP0064309B1 (en) 1987-02-04

Family

ID=11182899

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82200472A Expired EP0064309B1 (en) 1981-05-05 1982-04-20 A process for the manufacturing of paper, particularly corrugated paperboard

Country Status (11)

Country Link
EP (1) EP0064309B1 (it)
JP (1) JPS5823990A (it)
AT (1) ATE25411T1 (it)
AU (1) AU553303B2 (it)
CA (1) CA1233303A (it)
DE (1) DE3275394D1 (it)
ES (1) ES8304246A1 (it)
FR (1) FR2505378A1 (it)
IL (1) IL65788A (it)
IT (1) IT1138300B (it)
ZA (1) ZA823051B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0350015Y2 (it) * 1986-07-31 1991-10-25
CN109235097A (zh) * 2018-09-07 2019-01-18 中条山有色金属集团有限公司 一种瓦楞芯纸原纸的制备方法及其应用

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE323627C (de) * 1916-05-31 1920-07-30 Ewald Rasch Verfahren zur vegetabilischen Leimung von Papier, Pappen, Geweben, Faserstoffen u. dgl. unter Verwendung von Sulfitzelluloseablauge
GB534534A (en) * 1939-08-26 1941-03-10 Rudolph Bellak A process for the bleaching and utilization of waste sulphite liquors
US3305435A (en) * 1966-07-07 1967-02-21 Weyerhaeuser Co Method of making paper stiffened with waste pulp liquor solids
FR1532090A (fr) * 1966-07-25 1968-07-05 Procédé pour l'augmentation d'aptitude de papiers à onduler, grâce à l'utilisation de lessives résiduaires modifiées de pâte
DE1546238A1 (de) * 1966-07-25 1969-07-17 Brecht Dr Ing Walter Verfahren zur Eignungssteigerung von sogenannten Wellenpapieren durch Verwendung modifizierter Zellstoffablaugen
DE2615021A1 (de) * 1975-03-07 1976-10-21 Eric Sydney Prior Gegenstand aus fasermaterial
US4191610A (en) * 1975-04-09 1980-03-04 Prior Eric S Upgrading waste paper by treatment with sulfite waste liquor

Also Published As

Publication number Publication date
EP0064309A3 (en) 1983-08-24
CA1233303A (en) 1988-03-01
ATE25411T1 (de) 1987-02-15
ZA823051B (en) 1983-04-27
IL65788A0 (en) 1982-08-31
DE3275394D1 (en) 1987-03-12
IT8121512A0 (it) 1981-05-05
ES511912A0 (es) 1983-02-16
AU553303B2 (en) 1986-07-10
JPS6254920B2 (it) 1987-11-17
IL65788A (en) 1986-01-31
JPS5823990A (ja) 1983-02-12
AU8340282A (en) 1982-11-11
EP0064309A2 (en) 1982-11-10
IT1138300B (it) 1986-09-17
ES8304246A1 (es) 1983-02-16
FR2505378A1 (fr) 1982-11-12

Similar Documents

Publication Publication Date Title
Roberts Paper chemistry
US4260452A (en) Production of paper pulp from sugar mill bagasse
US4959272A (en) Gypsum wallboard paper having imitation manila colored coating
DE69213766T2 (de) Holzfreier zellstoff und weisses papierprodukt
CA2372499A1 (en) A process for production of paper materials with improved wet strength
US3305435A (en) Method of making paper stiffened with waste pulp liquor solids
EP0064309B1 (en) A process for the manufacturing of paper, particularly corrugated paperboard
US5554261A (en) Dyeing of paper
SU1044708A1 (ru) Волокниста масса дл изготовлени картона и древесно-волокнистых плит
DE2834909B2 (de) Verfahren zur Herstellung von Holzschliff
US1812832A (en) Filled pulp and method of making the same
US2846431A (en) Water soluble thermo-setting resin and method for its manufacture
DE2353771A1 (de) Verfahren zum enttinten von abfallpapier
US3644167A (en) Preparation of corrugating linerboard
CN110258159A (zh) 一种低过渡金属含量的高湿强废纸的制浆方法
DE2649300A1 (de) Verfahren zur herstellung von plattenfoermigem material aus calciumsulfatdihydrat
CN110373952A (zh) 一种回收再制作瓦楞纸的生产工艺
KR100528318B1 (ko) 크라프트 지대용 고지 재활용 포장용지의 제조방법
US5679221A (en) Method for aluminum reduction in recycled pulp and paper
CN110552245B (zh) 利用造纸厂废料生产挂面纱管原纸的工艺
Smook Overview of the pulp and paper industry from a chemical industry perspective
US3471361A (en) Paper from deinked fibers including scavenged contaminants and fibrous alkali metal titanate
DE69104249T2 (de) Produkt aus Mehrschichtpappe und Verfahren zu seiner Herstellung.
Mussey Water requirements of the pulp and paper industry
Abadie-Maumert et al. Utilization of ozone for the treatment of recycleable papers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19840131

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: INDUSTRIAL FINANCIAL DEVELOPMENT S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

17Q First examination report despatched

Effective date: 19851008

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 25411

Country of ref document: AT

Date of ref document: 19870215

Kind code of ref document: T

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

REF Corresponds to:

Ref document number: 3275394

Country of ref document: DE

Date of ref document: 19870312

26 Opposition filed

Opponent name: HOLMENS BRUK AB

Effective date: 19870223

ITF It: translation for a ep patent filed

Owner name: SAIC BREVETTI S.R.L.

NLR1 Nl: opposition has been filed with the epo

Opponent name: HOLMENS BRUK AB

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBG Opposition deemed not to have been filed

Free format text: ORIGINAL CODE: 0009274

26 Opposition filed

Opponent name: HOLMEN GMBH

Effective date: 19871104

Opponent name: CARTIERE MODESTO CARDELLA S.P.A.

Effective date: 19871103

26D Opposition deemed not to have been filed

Opponent name: HOLMENS BRUK AB

Effective date: 19871105

NLR1 Nl: opposition has been filed with the epo

Opponent name: HOLMEN GMBH

Opponent name: CARTIERE MODESTO CARDELLA S.P.A.

NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: IN PAT.BUL.10/87,PAGE 1351:THE OPPOSITION SHOULD BE DEEMED NOT TE HAVE BEEN FILED

ITTA It: last paid annual fee
PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 19900608

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910325

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19910327

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910408

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19910410

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910422

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910426

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910429

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910430

Year of fee payment: 10

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920420

Ref country code: GB

Effective date: 19920420

Ref country code: AT

Effective date: 19920420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920430

Ref country code: CH

Effective date: 19920430

Ref country code: BE

Effective date: 19920430

BERE Be: lapsed

Owner name: INDUSRIAL FINANCIAL DEVELOPMENT S.R.L.

Effective date: 19920430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19921101

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930101

EUG Se: european patent has lapsed

Ref document number: 82200472.7

Effective date: 19921108

ITPR It: changes in ownership of a european patent

Owner name: CAMBIO SEDE;VIA S. SALVATORE 8 - 03035 FONTANA LIR

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO