EP2825699B1 - Faserstoffzusammensetzung - Google Patents

Faserstoffzusammensetzung Download PDF

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Publication number
EP2825699B1
EP2825699B1 EP13714563.7A EP13714563A EP2825699B1 EP 2825699 B1 EP2825699 B1 EP 2825699B1 EP 13714563 A EP13714563 A EP 13714563A EP 2825699 B1 EP2825699 B1 EP 2825699B1
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EP
European Patent Office
Prior art keywords
grass
algae
pulp
seagrass
sedge
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EP13714563.7A
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German (de)
English (en)
French (fr)
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EP2825699A1 (de
Inventor
Uwe D'agnone
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Individual
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Individual
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Priority claimed from DE201220002588 external-priority patent/DE202012002588U1/de
Application filed by Individual filed Critical Individual
Priority to SI201330543A priority Critical patent/SI2825699T1/sl
Priority to RS20170230A priority patent/RS55754B1/sr
Priority to HRP20170354TT priority patent/HRP20170354T1/hr
Priority to SM20170144T priority patent/SMT201700144T1/it
Priority to PL13714563T priority patent/PL2825699T3/pl
Publication of EP2825699A1 publication Critical patent/EP2825699A1/de
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Publication of EP2825699B1 publication Critical patent/EP2825699B1/de
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    • 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
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J1/00—Fibreboard

Definitions

  • the present invention relates to a pulp composition, in particular for use in the production of paper, paperboard, cardboard, printing media, insulating or insulating material, fiberboard, filling material and a method for producing such a pulp mixture.
  • Pulp mixtures are known in the art.
  • wood-containing and wood-free fibers are used in the prior art, which are obtained essentially from tree-like plants.
  • the corresponding plants such as tree trunks are crushed and processed either as wood pulp or as pulp, in which at least significant parts of the lignin contained in the wood are removed.
  • the corresponding fibrous materials are sometimes even adapted to the optical and mechanical requirements, for example by means of bleaching or grinding and then processed further.
  • a disadvantage of the known in the prior art pulp compositions and processes for the preparation of this is that the defibration of wood, wood logs or sawdust is very energy-consuming, in the production of pulp considerable process engineering effort, as well as significant amounts of chemical aids and water used Need to become.
  • the wood to be used for this purpose must be cultured for a relatively long period of time before it can be fed to the fiber preparation process. Furthermore, this relatively high transport costs are necessary.
  • the object is achieved by a pulp mixture according to claim 1 and the claimed method for producing this pulp mixture according to claim 8.
  • Preferred embodiments of the pulp composition and the method are the subject of the respective subclaims.
  • the object is also achieved by the use of the pulp for the production of products, as they are determined with claim 16.
  • the pulp mixture according to the invention comprises a predetermined proportion of virgin fibers and / or waste paper, which in addition to the excipients and water and a predetermined proportion of fresh and / or sour grass and / or seaweed and / or algae fibers has.
  • the proportion by weight of the fresh, sour, seagrass and / or algae fibers (individually or in combination) in the pulp mixture is between 1 and 100% by weight, based on the entire mass of the pulp and determined as the oven-dry pulp content.
  • oven-dry substance content For determining the oven-dry substance content, reference is made to the relevant standards for determining consistency, dry content and / or residual moisture content.
  • virgin fibers or waste paper are understood to be fibrous materials selected from the group consisting of long fiber pulp, short fiber pulp, chemically delignified pulps, sulphate pulp, sulphite pulp, soda or organocell pulps, cotton pulp, pulp, thermo mechanical pulp, groundwood, chemo Thermo Mechanical Pulp, waste paper, in particular of grades A - D: Lower varieties; E - J: medium varieties; K - U: better varieties; V - W: kraft grades and X: special grades, bleached pulps, combinations thereof, and the like. It should be noted that it is also within the meaning of the present invention that the aforementioned fibrous materials are or are pretreated mechanically and / or chemically.
  • the bleach can be either oxidative or reductive, or even in the combination of corresponding bleaching stages exist.
  • the fibrous materials may also be pretreated enzymatically, so as to reduce, for example, the grinding resistance of the pulp.
  • the pulp composition according to the invention also comprises a predetermined proportion of sweet and / or sour grass fibers.
  • grass fibers are preferably provided from dried, semi-dried or fresh grass, the grass preferably being selected from a group consisting of ear-grasses, bluegrasses and spikes grasses, as well as species of the genera Poaceae, and Cyperaceae, in particular grasses of the subfamilies Anomochlooideae, Pharoideae, Puelioideae, Bambusoideae Ehrhartoideae, Pooideae, such as, for example, Tribus Aveneae, Tribune Poeae, Tribe Triticeae, Aristidoideae, Danthonioideae, Arundinoideae, Chloridoideae, Centothecoideae, Panicoideae, such as Saccharum officinarum and Micrairoideae,
  • seagrass or algae can also be used as so-called grass fibers in addition to or in combination with the above sweet and / or sour grasses, which are selected from a group which includes, inter alia, genera seagrass (Zostera) and the species Zostera angustifolia (Hornem.) Rchb Zostera asiatica Miki, Zostera caespitosa Miki, Zostera capensis Setch., Zostera capricorni Ash., Zostera caulescens Miki, Zostera japonica Ash.
  • the fresh, sour, seagrass and / or algae fiber fraction (individually or in combination) of the pulp composition is mechanically processed before it is mixed with the other constituents.
  • the fresh, sour, seagrass and / or algae can be further processed directly after the cut without drying.
  • this direct processing it should be further noted that this is accompanied by a relatively strong green discoloration in the end product (grass paper), if no further precautions or process steps are taken.
  • the grass ie the fresh and / or sour and / or seagrass and / or algae fiber can also only be partially dried, with low residual moisture also accompanied by a reduced green discoloration in the end product.
  • the grass can be very heavily dried (dry content between 75 and 90%), whereby relatively low green colorations can be achieved in the final product.
  • the grass is washed prior to processing. This can be done in one or more stages, for which purpose preferably water is used whose temperature is between 10 ° C and 95 ° C. Good results are achieved with multiple washes ranging between one and six wash cycles.
  • the grass is provided by cutting and harvesting meadow grass, sports and / or working lawns, wherein especially in meadows the second or each further cut is particularly well suited, as this reduces the tendency to knot is.
  • the grass or grass fibers When cleaning the grass or grass fibers, it is also within the spirit of the present invention that prior to further processing, contaminants such as e.g. Earth, stones, plastic, etc. are removed. This can be dry-cleaned both by air classifiers (here, for example, the fibers are blown with air on a sieve, whereby heavy foreign matter and light foreign matter in this case due to their weight, a distance other than the fibers overcome and thus separated). Alternatively, in particular, the dry fibers can also be cleaned by centrifuges. In addition, the fibers can also be washed for cleaning, which can be done for example by washing out and wrestling in a filter. Through this cleaning step, the green discoloration can also be reduced in parallel.
  • air classifiers here, for example, the fibers are blown with air on a sieve, whereby heavy foreign matter and light foreign matter in this case due to their weight, a distance other than the fibers overcome and thus separated.
  • the dry fibers can also be cleaned by centrifuges.
  • This process can be done in Any state of fiber, whether fresh or dry. Due to the then lower resistance, the shredding of the dry fiber is the easiest.
  • the comminution is also possible during grinding, such as in the refiner and the corresponding setting of this unit.
  • Another possibility is a combination of cutting before grinding and grinding, for example, the fibers outside the refiner or Dutchman to a max. Pre-cut length of 50 mm and compressed, for example, to pellets. These pellets can then be suspended in water and, after swelling in the refiner or dutchman, further comminuted or ground. With this possibility results inter alia a shortening of the processing time in the refiner / dutchman and an associated energy saving.
  • adjuvants are in particular additives which are selected from the group consisting of retention agents, drainage aids, retention agent dual systems or microparticle systems, wet and dry strength promoters, fillers and / or pigments, in particular from a group of kaolin, talc , Calcium carbonate, calcium silicate, titanium dioxide, aluminum hydroxide, silicic acid, bentonite, barium sulfate, selected, binder components, coating components, antifoams, deaerators, biocide, enzymes, antioxidants, preservatives, bleaching aids, optical brighteners, dyes, shading dyes, impurities scavenger, precipitants, glue, resin, Fixatives, wetting agents, pH regulators, binders, such as starch, Carboxymethyl cellulose, casein, guar, soy proteins, cellulose ethers, vegetable proteins of other origin, synthetic binders in dispersion form and water-soluble form based on styrene-but
  • the proportion of the weight fraction of fresh, sour, seagrass and / or algae fibers is greater than 10%, in particular greater than 25% and particularly preferably greater than 50% / or the proportion of fresh fibers and / or waste paper is less than the proportion by weight of sweet, sour, seagrass and / or algae fibers in the pulp composition.
  • the object of the present invention is also achieved by a process for producing a pulp mixture, the process comprising the steps of harvesting the sweet, sour, seagrass and / or algae (singly or in combination), cutting the sweet, sour -, seaweed and / or algae fiber (individually or in combination) to a predetermined length, the suspension of the fresh, sour, seagrass and / or algae fibers (individually or in combination) in water and the addition of predetermined proportions of fresh fiber and / or waste paper and / or excipients.
  • a process for producing a pulp mixture comprising the steps of harvesting the sweet, sour, seagrass and / or algae (singly or in combination), cutting the sweet, sour -, seaweed and / or algae fiber (individually or in combination) to a predetermined length, the suspension of the fresh, sour, seagrass and / or algae fibers (individually or in combination) in water and the addition of predetermined proportions of fresh fiber and / or waste paper
  • the method according to the invention comprises, after mowing, the step of partially drying and / or pelleting, in which case the sweet, sour, seagrass and / or algae fibers (individually or in combination) preferably have a predetermined length prior to pelleting is shortened. Possibly. This can also be combined with the pelleting process or process.
  • the green grass fiber fraction is ground before the addition of virgin fibers and / or waste paper.
  • This can be historically through a dutchman or modern through take a refiner, which can be ground by cutting the adjustment of the corresponding treated pulp and / or fibrillating.
  • the fribrilizing refining has the advantage of not only changing the length of the pulp, but also significantly increasing the surface area of the pulp, thus increasing the ability to build up connections between the fibers and thus also improving the strength of the product produced.
  • pulp composition it is also within the meaning of the present invention that individual pulp components or the entire pulp composition is bleached, sorted, dispersed and / or homogenized and in particular when processing into paper, cardboard or paperboard is adjusted to a predetermined consistency.
  • this reduction should be carried out in such a way that the length of the grass is predominantly approx. 20 cm, in particular 10 cm and preferably between 100 mm and 0.1 mm, more preferably between 50 mm and 1 mm and in particular between 10 mm and 1 mm.
  • the object of the present invention is also achieved by the use of the above-described pulp composition for producing paper, paperboard, cardboard, printing substrates, insulating or insulating material, fiberboard, filling material, combinations thereof, and the like.
  • grass paper for example, conventional lawns, lawns (sports lawns, private households, towns and municipalities) - in the following only called grass - can be used. It can be used here a variety of grasses of the order "sweet grass” (Poales) or “sour grass” (Cyperaceae), wherein in the subfamily Cyperoidorae such. Zypergräser and papyrus may be subject to certain restrictions. For these grasses, additional peeling would be required for further processing. This might be (energy) consuming.
  • the grass When inserting the ordinary meadow grass can be processed easily on existing leaves on meadows. For better processing, storage and more efficient transport, the grass can be dried (hay) freed from foreign matter and crushed. A compression, such as pelleting can be useful here.
  • the grass is in a row without added additional processing in a mixing ratio of, for example, 10% in a stock suspension, or presented in water.
  • the other additives may be pulps of virgin fibers or else secondary fibers such as rags or waste paper. These additives can also be combined.
  • the ratio of pulp components can be increased up to 99% grass fiber content.
  • Et al the natural color of the grass gives the material a high opacity. Due to the high opacity, the user of the paper can use lighter grammages without allowing a shine through.
  • the material can optionally z. B. on the line, the mass or when sizing colored. As a result, a fair share of white can be obtained.
  • the surface can be additionally smoothed.
  • Dry hay with a dry content between 75 and 85% was used in this test series. This was roughly cleaned to be free of foreign matter such as e.g. Earth is free. Then it was shortened to one third of its length (about 20 cm) and then washed with about 15 degrees warm water and wrung out in a filter. This procedure was repeated 3 times and each time a lot of green discoloration was washed out.
  • the appropriately cleaned hay was added to a Dutchman while still wet. Added to this were fresh fiber pulp, waste paper (120g / sqm natural paper with 1.9 times volume) and auxiliaries. In a second batch filler was also added to see what impact this has on the surface and whiteness. After twenty-two minutes of suspension in the Dutch, the stock preparation was completed and test sheets were produced. Printing tests were carried out with these sheets in order to check whether the possibly missing whiteness can be improved, for example by means of offset printing in white. This too was successful.
  • Dry hay from meadow grass was used in this test series. This was cleaned with air and thus freed of foreign matter such as soil and dust and then reduced by means of a cutting unit to about one-tenth of its length (about 6 cm). This shortened hay was given to a Dutchman while still dry. Added to this were fresh fiber pulp, waste paper and two different auxiliaries in order, among other things, to obtain a better surface. After about 30 minutes of suspension, the stock preparation was completed. By means of a round sieve, sheets of about 70 x 100 cm were produced. These sheets were each transported on a felt on the drying cylinder and dried to about 35% residual moisture. In this test, the paper thus produced had a grammage of about 200 g / sqm or about 110 g / sqm.
  • the volume was about 1.3 g / cm 3 .
  • the paper thus produced shows different smoothness values on the top and bottom, the screen side being smoother than the top.
  • a printing test was carried out on a 4-color offset printing machine. A 4-color motif was tested here, once with the prior application of offset printing white and once without. Both variants were absolutely successful.
  • Tables 1 and 2 the property characteristics of the papers from Experiments 2 and 3 are compared. In this case, the values for sample 1 from experiment 2 and those for sample 2 from experiment 3. In addition to the absolute values, the changes in the characteristic values are also given in table 1, the calendering being expected to indicate the thickness and The air permeability of the paper decrease and, apart from the breaking force, all other values tend to increase transversely, and even significantly increase in terms of elongation.
  • Table 2 shows the optical measurement values of the two papers examined, whereby, in addition to the clear coloration, the very high opacity value of close to 100% can be recognized.
  • Pulp use Magazine paper 14% long fiber (pine / spruce) / Stendal ECF (Mercer), 33% short fiber (eucalyptus) / Cenibra, 3% CTMP (spruce / pine) / Waggeryd CTMP, 50% grass.
  • the grass is southern German meadow grass that was cut conventionally for feed use and dried in the air to approx. 8% residual moisture.
  • the defibration was carried out at a consistency of 5%, a speed of the pulper of 990 rpm over a period of 15 minutes.
  • the grinding was carried out at a consistency of 4%, a cutting angle of 60 °, an edge load of 0.7 Ws / m and a grinding energy of 150 kWh / t.
  • the dewatering resistance achieved after grinding was 32 ° SR.
  • Fiber material Wave paper from approx. 50% AP grade 1.02 / 50% AP variety 1.04, 50% grass.
  • the grass used is southern German meadow grass that was cut conventionally for feed use and dried in the air to a residual moisture content of around 8%.
  • Additives (based on pulp): 1% starch / Cargill 35844, 0.025% PAM / BASF - Percol 540
  • the grass used in the above composition was prepared as follows:
  • the defibration of the grass was carried out at a consistency of 10%, a speed of the pulper of 990 rpm over a period of 20 minutes. This was followed by deflaking at a speed of 2200 rpm over a period of 5 minutes. Grinding of the grass was carried out at a consistency of 8%, a cutting angle of 60 °, an edge load of 0.7 Ws / m and a grinding energy of 25 kWh / t. After that, the grass pulp had a drainage resistance measured as SR value of 52 °.
  • FIG. 2 the fiber length distribution in fiber length classes of the material systems used in this experiment is reproduced and compared with other, common pulp systems.
  • the fiber length classes - length weights and the y-axis the percentage in the fiber length class are plotted on the x-axis.
  • the course 1 shows the fiber length distribution of straw after defibration, 2 of straw after 5 min defibration, 3 short fiber pulp eucalyptus, 4 grass with a drainage resistance of 52 ° SR and 5 grass with a drainage resistance of 49 ° SR.
  • Paper rolls or paper sheets having different grammages between 40 g / m 2 and 80 g / m 2 for the magazine paper and between 90 g / m 2 and 250 g / m 2 for the corrugated cardboard liner under comparable conditions were produced from the corresponding material systems.
  • FIGS. 3 to 6 show the property values of corresponding magazine papers, which were made from the aforementioned pulp system. It shows FIG. 3 for a pulp / grass pulp system 31 and a pure pulp fiber system 32 the evolution of the specific volume in cm 3 / g (y-axis) as a function of the mass per unit area in g / m 2 (x-axis).
  • FIG. 4 shows the elongation at break along 41 and across 42 in% (y-axis) as a function of the area-related mass in g / m 2 (x-axis), FIG.
  • FIG. 5 the tensile index along 51 and transverse 52 in Nm / g (y-axis) as a function of the basis weight in g / m 2 (x-axis) and FIG. 6 the working capacity along 41 and transverse 42 in J / g (y-axis) as a function of the mass per unit area in g / m 2 (x-axis).
  • FIGS. 7 to 9 show the property values of corresponding corrugated cardboard liners made from the aforementioned pulp system. It shows FIG. 7 for a liner / grass pulp system 71 and a virgin liner pulp system 72, the evolution of the specific volume in cm 3 / g (y-axis) as a function of basis weight in g / m 2 (x-axis).
  • FIG. 8 shows the bursting resistance (according to Mullen) in kPa (y-axis) as a function of the mass per unit area in g / m 2 (x-axis)
  • FIG. 9 the strip crush resistance along 91 and transverse 92 in kN / m (y-axis) as a function of the area-related mass in g / m 2 (x-axis).
  • the results of the fiber length investigation and the fiber length distribution show a similarity with pulp such as fiber pulp systems from straw.
  • the pulp has a relatively large fiber diameter and a high fiber wall thickness. Especially at low basis weight, this has an increasing effect on the volume of the paper.
  • the tensile strength for magazine paper is approximately at the level of a wood-free, uncoated paper made of 100% short fiber pulp with about 20% filler.
  • the measured strengths of the liner are also at a good base level, with the higher volume having an advantageous effect on stiffness properties.

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  • Paper (AREA)
  • Artificial Filaments (AREA)
  • Cosmetics (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Cultivation Of Plants (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
EP13714563.7A 2012-03-13 2013-03-11 Faserstoffzusammensetzung Active EP2825699B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SI201330543A SI2825699T1 (sl) 2012-03-13 2013-03-11 Vlaknasti sestavek
RS20170230A RS55754B1 (sr) 2012-03-13 2013-03-11 Kompozicija vlaknastih materijala
HRP20170354TT HRP20170354T1 (hr) 2012-03-13 2013-03-11 Kompozicija vlaknastih materijala
SM20170144T SMT201700144T1 (it) 2012-03-13 2013-03-11 Composizione fibrosa
PL13714563T PL2825699T3 (pl) 2012-03-13 2013-03-11 Kompozycja materiału włóknistego

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE201220002588 DE202012002588U1 (de) 2012-03-13 2012-03-13 Graspapier
DE201210107193 DE102012107193A1 (de) 2012-03-13 2012-08-06 Faserstoffzusammensetzung
DE102012109306 2012-10-01
PCT/EP2013/054885 WO2013135632A1 (de) 2012-03-13 2013-03-11 Faserstoffzusammensetzung

Publications (2)

Publication Number Publication Date
EP2825699A1 EP2825699A1 (de) 2015-01-21
EP2825699B1 true EP2825699B1 (de) 2016-12-07

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US (1) US9976255B2 (pt)
EP (1) EP2825699B1 (pt)
JP (1) JP6415988B2 (pt)
KR (1) KR101840514B1 (pt)
CN (1) CN104271834B (pt)
AP (1) AP2014008010A0 (pt)
BR (1) BR112014022557B1 (pt)
CA (1) CA2867056C (pt)
CY (1) CY1118697T1 (pt)
DK (1) DK2825699T3 (pt)
EA (1) EA029141B1 (pt)
ES (1) ES2617343T3 (pt)
HR (1) HRP20170354T1 (pt)
HU (1) HUE031974T2 (pt)
IN (1) IN2014DN08383A (pt)
LT (1) LT2825699T (pt)
PL (1) PL2825699T3 (pt)
PT (1) PT2825699T (pt)
RS (1) RS55754B1 (pt)
SI (1) SI2825699T1 (pt)
SM (1) SMT201700144T1 (pt)
WO (1) WO2013135632A1 (pt)
ZA (1) ZA201406498B (pt)

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WO2020239510A1 (de) 2019-05-28 2020-12-03 Ricola Group Ag Faserstoff für papier, pappe oder karton sowie dessen bereitstellung und verwendung

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DE102013019715A1 (de) * 2013-11-27 2015-05-28 Jürgen Marz Dämmstoffelement und Verfahren zu dessen Herstellung
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CN104271834A (zh) 2015-01-07
AP2014008010A0 (en) 2014-10-31
PT2825699T (pt) 2017-03-10
HRP20170354T1 (hr) 2017-05-05
RS55754B1 (sr) 2017-07-31
BR112014022557B1 (pt) 2021-11-30
PL2825699T3 (pl) 2017-08-31
US9976255B2 (en) 2018-05-22
KR101840514B1 (ko) 2018-03-20
DK2825699T3 (en) 2017-03-13
LT2825699T (lt) 2017-04-10
ZA201406498B (en) 2015-11-25
EP2825699A1 (de) 2015-01-21
ES2617343T3 (es) 2017-06-16
WO2013135632A1 (de) 2013-09-19
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BR112014022557A2 (pt) 2017-07-04
CN104271834B (zh) 2018-01-23
JP2015510053A (ja) 2015-04-02
JP6415988B2 (ja) 2018-10-31
EA029141B1 (ru) 2018-02-28
EA201491659A1 (ru) 2015-05-29
HK1206401A1 (en) 2016-01-08
SMT201700144T1 (it) 2017-05-08
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CA2867056A1 (en) 2013-09-19
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