HUP0003123A2 - Kraft paper and method for making the same and sack with valve made from kraft paper - Google Patents

Kraft paper and method for making the same and sack with valve made from kraft paper

Info

Publication number
HUP0003123A2
HUP0003123A2 HU0003123A HUP0003123A HUP0003123A2 HU P0003123 A2 HUP0003123 A2 HU P0003123A2 HU 0003123 A HU0003123 A HU 0003123A HU P0003123 A HUP0003123 A HU P0003123A HU P0003123 A2 HUP0003123 A2 HU P0003123A2
Authority
HU
Hungary
Prior art keywords
kraft paper
grinding
paper
lean
kraft
Prior art date
Application number
HU0003123A
Other languages
Hungarian (hu)
Inventor
Stefan Hakansson
Björn Nilsson
Ing-Marie Ryden
Original Assignee
Assidomän AB
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=20407702&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HUP0003123(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Assidomän AB filed Critical Assidomän AB
Publication of HUP0003123A2 publication Critical patent/HUP0003123A2/en
Publication of HUP0003123A3 publication Critical patent/HUP0003123A3/en
Publication of HU222668B1 publication Critical patent/HU222668B1/en

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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D21H11/04—Kraft or sulfate pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/006—Making patterned paper
    • 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
    • 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
    • D21H21/18—Reinforcing agents
    • 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
    • D21H27/02—Patterned paper
    • 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
    • D21H27/10—Packing paper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Bag Frames (AREA)
  • Making Paper Articles (AREA)

Abstract

A találmány tárgya nátronpapír, nátronpapírból készült szelepes zsák,valamint eljárás nátronpapír gyártására. A találmány szerinti eljárássorán ntároncellulózon csak zsírosőrlést (HC refining) végeznek, vagyegyaránt végeznek zsírosőrlést és soványőrlést (LC beating), továbbáha soványőrlést is végeznek, akkor a soványőrlésnél a betápláltenergiamennyiséget 1 tonna 100%-osan száraz papírra vonatkoztatva 80kWh-nál kisebb értéken tartják. A gyártási folyamat egy vagy többpontján az őrlés eredményeként kapott papírpépnek a papírgép szitájáratörténő rávezetése előtt szilárdságnövelő szert, különösen töltésselrendelkező polimert - például keményítőt - adagolnak a papírpéphezúgy, hogy a szilárdságnövelő szer teljes mennyisége - keményítőalkalmazása esetén - legalább 8 kg 1 tonna 100%-osan száraz papírravonatkoztatva. A találmány szerinti nátronpapír lényege, hogyszakításienergia-abszorpciós tényezője 2,5-3,5 J/g, és Gurley-féleporozitása kevesebb mint 10 s, célszerűen kevesebb mint 7 s. Atalálmány szerinti szelepes zsák lényege, hogy egy vagy több olyannátronpapír rétegből áll, amely rétegeket a találmány szerintieljárással lehet előállítani. ÓThe subject of the invention is kraft paper, a valve bag made of kraft paper, as well as a process for the production of kraft paper. During the process according to the invention, only fatty grinding (HC refining) is performed on the cellulose, or fatty grinding and lean grinding (LC beating) are performed at the same time, furthermore, if lean grinding is also performed, the amount of energy supplied during lean grinding is kept at a value of less than 80 kWh, based on 1 ton of 100% dry paper. At one or more points in the production process, a strength-increasing agent, especially a filling polymer - such as starch - is added to the paper pulp before the paper pulp obtained as a result of grinding is fed through the sieve of the paper machine, so that the total amount of the strength-increasing agent - in the case of starch application - is at least 8 kg per ton 100% dry paper coated. The essence of the kraft paper according to the invention is that its tear energy absorption factor is 2.5-3.5 J/g and its Gurley porosity is less than 10 s, preferably less than 7 s. The essence of the valve bag according to the invention is that it consists of one or more layers of kraft paper, which layers can be produced by the method according to the invention. HE

HU0003123A 1997-07-09 1998-07-07 Kraft paper and method for making the same and valve sack made from kraft paper HU222668B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9702656A SE510506C2 (en) 1997-07-09 1997-07-09 Kraft paper and process for making this and valve bag
PCT/SE1998/001340 WO1999002772A1 (en) 1997-07-09 1998-07-07 Kraft paper and method for making the same

Publications (3)

Publication Number Publication Date
HUP0003123A2 true HUP0003123A2 (en) 2001-02-28
HUP0003123A3 HUP0003123A3 (en) 2001-12-28
HU222668B1 HU222668B1 (en) 2003-09-29

Family

ID=20407702

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0003123A HU222668B1 (en) 1997-07-09 1998-07-07 Kraft paper and method for making the same and valve sack made from kraft paper

Country Status (17)

Country Link
EP (1) EP1012377B1 (en)
AT (1) ATE219536T1 (en)
AU (1) AU8365898A (en)
BG (1) BG63849B1 (en)
BR (1) BR9810569B1 (en)
CA (1) CA2295075A1 (en)
CZ (1) CZ297129B6 (en)
DE (2) DE69806168T2 (en)
EE (1) EE04531B1 (en)
ES (1) ES2147169T3 (en)
HU (1) HU222668B1 (en)
PL (1) PL187952B1 (en)
PT (1) PT1012377E (en)
RU (1) RU2208079C2 (en)
SE (1) SE510506C2 (en)
WO (1) WO1999002772A1 (en)
ZA (1) ZA986082B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3786079B1 (en) 2019-08-27 2022-04-06 BillerudKorsnäs AB A paper bag

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE515722C2 (en) * 2000-01-10 2001-10-01 Valmet Karlstad Ab Heat treatment of ground, chemically prepared pulp suspension
EP1889972A1 (en) * 2006-06-26 2008-02-20 Biltube India Limited Core board
DK2808440T3 (en) 2009-03-30 2019-09-30 Fiberlean Tech Ltd Process for the preparation of nanofibrillar cellulose suspensions
ES2650373T3 (en) 2009-03-30 2018-01-18 Fiberlean Technologies Limited Procedure for the production of nanofibrillar cellulose gels
SI2386682T1 (en) 2010-04-27 2014-07-31 Omya International Ag Process for the manufacture of structured materials using nano-fibrillar cellulose gels
DK2386683T3 (en) 2010-04-27 2014-06-23 Omya Int Ag Process for the preparation of gel-based composite materials
EP2388203A1 (en) * 2010-05-19 2011-11-23 Franco Benedetti Paper sack comprising a combination of sack kraft paper and recycled containerboard paper
JP6198376B2 (en) * 2012-09-12 2017-09-20 日本製紙株式会社 Kraft paper
CN103321084B (en) * 2013-06-21 2016-06-22 杭州特种纸业有限公司 Water suction kraft paper and processing technology thereof
CA2918147A1 (en) 2013-07-18 2015-01-22 Nippon Paper Industries Co., Ltd. Clupak paper
PL2963178T3 (en) * 2014-07-04 2016-12-30 Production of sack paper
RS55155B1 (en) 2014-07-04 2017-01-31 Billerudkorsnaes Ab Coated sack paper
PL3009371T3 (en) 2014-10-15 2017-03-31 Billerudkorsnäs Ab Sack with discontinuous longitudinal seam
RU2676489C1 (en) * 2014-11-28 2018-12-29 Фойт Патент Гмбх Method and device for manufacturing packaging paper
SE539344E (en) 2015-03-02 2020-02-11 Billerudkorsnaes Ab Pulp mixture for production of a paper product with high strength in z-direction
EP3088606A1 (en) * 2015-04-29 2016-11-02 BillerudKorsnäs AB Disintegratable brown sack paper
EP3362508B1 (en) 2015-10-14 2019-06-26 FiberLean Technologies Limited 3d-formable sheet material
ES2666830T3 (en) * 2015-11-10 2018-05-08 Billerudkorsnäs Ab Paper for a vertical wrapping machine
EP3184296B1 (en) 2015-12-21 2017-11-08 BillerudKorsnäs AB Rain resistant paper sack
EP3184694A1 (en) 2015-12-21 2017-06-28 BillerudKorsnäs AB Rainproof paper sack
EP3202979B1 (en) * 2016-02-04 2018-08-22 BillerudKorsnäs AB Liquid packaging paper
EP3211135B1 (en) * 2016-02-29 2018-08-29 BillerudKorsnäs AB High-stretch sackpaper
EP3385445B1 (en) * 2017-04-06 2019-06-05 BillerudKorsnäs AB Production of highly stretchable paper having satisfactory surface properties
PL3385444T3 (en) * 2017-04-06 2020-01-31 Billerudkorsnäs Ab Production of paper that is highly stretchable in the cross direction
CN112431060B (en) * 2020-11-13 2022-10-21 福建省青山纸业股份有限公司 Production method of environment-friendly craft paper
AT526106B1 (en) * 2022-05-03 2024-02-15 Mondi Ag Kraft paper

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE308243B (en) * 1966-04-04 1969-02-03 Korsnaes Marma Ab
SE320573B (en) * 1968-08-21 1970-02-09 Korsnaes Marma Ab
NO142091C (en) * 1977-10-17 1980-06-25 Myrens Verksted As PROCEDURE FOR OZONE TREATMENT OF REFINO MECHANICAL AND THERMOMECHANICAL MASS.
DE3223149C1 (en) * 1982-06-22 1984-01-19 Hermann 4020 Mettmann Frey Process for the production of paper or similar materials
SU1650840A1 (en) * 1989-01-19 1991-05-23 Всесоюзное научно-производственное объединение целлюлозно-бумажной промышленности Bagging paper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3786079B1 (en) 2019-08-27 2022-04-06 BillerudKorsnäs AB A paper bag

Also Published As

Publication number Publication date
DE1012377T1 (en) 2000-11-02
RU2208079C2 (en) 2003-07-10
CZ476399A3 (en) 2000-08-16
EE200000009A (en) 2000-08-15
EE04531B1 (en) 2005-08-15
BG63849B1 (en) 2003-03-31
ES2147169T3 (en) 2002-11-16
ZA986082B (en) 1999-01-26
ES2147169T1 (en) 2000-09-01
BG104046A (en) 2000-07-31
HU222668B1 (en) 2003-09-29
PT1012377E (en) 2002-10-31
SE9702656L (en) 1999-01-10
CA2295075A1 (en) 1999-01-21
CZ297129B6 (en) 2006-09-13
ATE219536T1 (en) 2002-07-15
WO1999002772A1 (en) 1999-01-21
SE510506C2 (en) 1999-05-31
PL337972A1 (en) 2000-09-11
HUP0003123A3 (en) 2001-12-28
DE69806168D1 (en) 2002-07-25
SE9702656D0 (en) 1997-07-09
EP1012377A1 (en) 2000-06-28
PL187952B1 (en) 2004-11-30
DE69806168T2 (en) 2002-11-28
AU8365898A (en) 1999-02-08
EP1012377B1 (en) 2002-06-19
BR9810569A (en) 2000-09-19
BR9810569B1 (en) 2008-11-18

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Legal Events

Date Code Title Description
HFG4 Patent granted, date of granting

Effective date: 20030729

MM4A Lapse of definitive patent protection due to non-payment of fees