EP0416278B2 - Gekrepptes Zellstoff-Tissuepapier - Google Patents

Gekrepptes Zellstoff-Tissuepapier Download PDF

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Publication number
EP0416278B2
EP0416278B2 EP90114566A EP90114566A EP0416278B2 EP 0416278 B2 EP0416278 B2 EP 0416278B2 EP 90114566 A EP90114566 A EP 90114566A EP 90114566 A EP90114566 A EP 90114566A EP 0416278 B2 EP0416278 B2 EP 0416278B2
Authority
EP
European Patent Office
Prior art keywords
paper
tissue paper
unbleached
tissue
ply
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 - Lifetime
Application number
EP90114566A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0416278B1 (de
EP0416278A3 (en
EP0416278A2 (de
Inventor
Horst Dr. Reinheimer
Norbert Dr. Rink
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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=6387872&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0416278(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of EP0416278A2 publication Critical patent/EP0416278A2/de
Publication of EP0416278A3 publication Critical patent/EP0416278A3/de
Application granted granted Critical
Publication of EP0416278B1 publication Critical patent/EP0416278B1/de
Publication of EP0416278B2 publication Critical patent/EP0416278B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • D21H11/06—Sulfite or bisulfite pulp

Definitions

  • the invention relates to a creped tissue paper, the basis weight of which is 14-16 g / m 2 atro.
  • tissue paper are used in particular for the production of hygiene paper, for example toilet paper, handkerchiefs, facial tissues or kitchen towels.
  • hygiene paper for example toilet paper, handkerchiefs, facial tissues or kitchen towels.
  • they are put together on laying machines to form 2-layer, 3-layer or 4-layer sheets and, if necessary, stamped together.
  • Their special properties are that they are remarkably tear-resistant with great softness and are also suitable for absorbing practically sufficient amounts of liquid.
  • bleached raw cellulose is produced from various types of wood, for example spruce wood, beech wood, eucalyptus wood, by chemical wet digestion using the sulfite or sulfate process.
  • the bleached raw pulp fibers are suspended in water for the production of tissue paper and then formed into a web on the paper machine, usually on the twin-wire paper machine.
  • the web is finally dried on a heated drying cylinder, with sufficient adhesion of the web to the cylinder surface being ensured by spraying an adhesive onto the surface of the drying cylinder or by adding adhesive chemicals to the stock suspension.
  • the web dries with a single revolution of the cylinder; the web is then scraped off the cylinder surface using a scraper with creping.
  • the dry tensile strengths achieved in the longitudinal direction vary depending on the basis weight. For a 1-ply web with a basis weight of 15 g / m 2 lutro, dry tensile strengths in the machine direction of 6-7 N / 50 mm are generally achieved.
  • the prerequisite for the production of creped tissue paper qualities of this type is the use of bleached raw pulp grades, the lignin content of which is practically reduced to zero%.
  • the use of unbleached cellulose grades has not been considered for high-quality hygienic paper, since the residual lignin content in the unbleached cellulose leads to rough tissue qualities.
  • it would be desirable to be able to use unbleached raw pulp for the production of tissue paper since it is known that the chlorine bleaching process that was previously necessary and also carried out leads to wastewater heavily contaminated with dirt and toxins. In particular, it interferes with the inevitable formation of toxic chlorine dioxins, which pollute the wastewater. This is basically not a problem of the actual tissue paper production, but concerns the pulp manufacturing; nevertheless, the entire chain from the initial wood to the finished tissue product must be taken into account from an environmental point of view.
  • the invention is therefore based on the object of proposing a creped cellulose tissue paper with improved dry tear strength in the machine direction and improved tactile softness.
  • tissue webs with a basis weight of 15.2 ⁇ 0.5 g / m 2 lutro (1-ply) were produced.
  • the weight per unit area is reduced by approx. 0.2 g / m 2 by stretching the web, by processing by a further 0.5 to 0.7 g / m 2 .
  • tissue webs of the same basis weight were then produced on the same paper machine using unbleached sulfate raw pulp.
  • 2-ply and 3-ply toilet paper sheets and 4-ply handkerchief sheets were produced from both webs on fabrication laying machines and various paper-technical measured values were determined on them. The following compilation shows the result.
  • the products produced had a tactile softness that was superior to that of bleached pulp webs.
  • the products produced therefore have good properties in terms of dry tensile strength in the machine direction and also good tactile softness.
  • they sometimes have the disadvantage that a slight smell is noticeable when the wipes are moistened, similar to the case with moist wrapping paper. It was determined by further experiments that this odor can be completely eliminated if the paper contains 5-30% by weight, preferably 25% by weight, of unbleached sulfite pulp fibers. This admixture has no influence on the strength or the tactile properties; however, it causes the paper produced to be odorless in both dry and wet conditions.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Sanitary Thin Papers (AREA)
EP90114566A 1989-08-25 1990-07-30 Gekrepptes Zellstoff-Tissuepapier Expired - Lifetime EP0416278B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928129 1989-08-25
DE3928129A DE3928129C1 (enrdf_load_stackoverflow) 1989-08-25 1989-08-25

Publications (4)

Publication Number Publication Date
EP0416278A2 EP0416278A2 (de) 1991-03-13
EP0416278A3 EP0416278A3 (en) 1991-12-04
EP0416278B1 EP0416278B1 (de) 1994-09-21
EP0416278B2 true EP0416278B2 (de) 1997-12-03

Family

ID=6387872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90114566A Expired - Lifetime EP0416278B2 (de) 1989-08-25 1990-07-30 Gekrepptes Zellstoff-Tissuepapier

Country Status (4)

Country Link
EP (1) EP0416278B2 (enrdf_load_stackoverflow)
AT (1) ATE111991T1 (enrdf_load_stackoverflow)
DE (2) DE3928129C1 (enrdf_load_stackoverflow)
ES (1) ES2059926T5 (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928129C1 (enrdf_load_stackoverflow) * 1989-08-25 1991-03-07 Vp-Schickedanz Ag, 8500 Nuernberg, De
DE4409372A1 (de) * 1994-03-18 1995-09-21 Schickedanz Ver Papierwerk Verfahren zur Herstellung von gekrepptem Hygiene-Zellstoffpapier
DE4414238A1 (de) * 1994-04-23 1995-10-26 Schickedanz Ver Papierwerk Haushalts- oder Hygienepapier sowie Verfahren zur Steigerung dessen Weichheit und Verringerung dessen Packvolumens
DE19909835A1 (de) * 1999-03-05 2000-09-07 Sca Hygiene Prod Gmbh Mehrschichtige Tissuebahn, Tissueprodukt sowie deren Herstellung
PT115563B (pt) 2019-06-03 2022-02-01 Raiz Instituto De Investig Da Floresta E Papel Pasta celulósica de eucalyptus globulus crua para produtos de papel tissue

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO124193B (enrdf_load_stackoverflow) * 1970-09-17 1972-03-20 Star Paper Mill As
US3812000A (en) * 1971-06-24 1974-05-21 Scott Paper Co Soft,absorbent,fibrous,sheet material formed by avoiding mechanical compression of the elastomer containing fiber furnished until the sheet is at least 80%dry
DE3928129C1 (enrdf_load_stackoverflow) * 1989-08-25 1991-03-07 Vp-Schickedanz Ag, 8500 Nuernberg, De
DE3943404C1 (enrdf_load_stackoverflow) * 1989-12-30 1990-11-29 Vp-Schickedanz Ag, 8500 Nuernberg, De

Also Published As

Publication number Publication date
DE3928129C1 (enrdf_load_stackoverflow) 1991-03-07
ES2059926T3 (es) 1994-11-16
ATE111991T1 (de) 1994-10-15
DE59007226D1 (de) 1994-10-27
EP0416278B1 (de) 1994-09-21
EP0416278A3 (en) 1991-12-04
EP0416278A2 (de) 1991-03-13
ES2059926T5 (es) 1998-04-01

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