SE526681C2 - Fiber suspension of enzyme treated sulphate pulp as raw material for packaging - Google Patents
Fiber suspension of enzyme treated sulphate pulp as raw material for packagingInfo
- Publication number
- SE526681C2 SE526681C2 SE0203742A SE0203742A SE526681C2 SE 526681 C2 SE526681 C2 SE 526681C2 SE 0203742 A SE0203742 A SE 0203742A SE 0203742 A SE0203742 A SE 0203742A SE 526681 C2 SE526681 C2 SE 526681C2
- Authority
- SE
- Sweden
- Prior art keywords
- suspension
- cellulose
- cmc
- pulp
- emfc
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Description
20 25 30 35 526 681 finmaterialet bidra till att stärka fiber-fiber bindningama som utvecklas under fibersuspensionens torkningsprocess. The material contribute to strengthening the berber fiber bonds that are developed during the drying process of the berry suspension.
Vanlig mikrofibrillär cellulosa (MFC) kan framställas genom mekanisk sönderdelning av fibrer. Denna teknik har prövats i Recell-projektet vid Institutet för Fiber- och Polymerteknologi (www.nutek.se). I detta fall framställs MFC med hjälp av en pärlkvam.Ordinary microbial cellulose (MFC) can be produced by mechanical decomposition of fibers. This technology has been tested in the Recell project at the Institute for Fiber and Polymer Technology (www.nutek.se). In this case, the MFC is prepared using a bead mill.
Resultatet fràn projektet anger att den mekaniskt framställda MFC-massan har en hög specifik yta som ger en stark bindningsförmága i pappersstrukturen, hög vattenretenticn, god stabilitet i vattendispersioner och är ett olösligt bindemedel i kolloidal form som inte ger miljöbelastning som lösliga altemativ, sàsom stârkelsebaserade preparat.The results from the project indicate that the mechanically produced MFC pulp has a high specific surface area which gives a strong bonding ability in the paper structure, high water retention, good stability in water dispersions and is an insoluble binder in colloidal form that does not give environmental impact as soluble alternatives, such as starch-based .
Cellulosafibrema kan också sönderdelas till mikrofibrillär cellulosa genom enzymbehandling, speciellt behandling med cellulaser. Denna typ av mikrofibrillär cellulosa betecknas här eMFC. Enzymer har en helt annan effekt på fibrema än en kvam, och därför finns det väsentliga skillnader mellan de resulterande tvâ typerna av mikrofibrillär cellulosa.Cellulose brema can also be broken down into micro - brilliant cellulose by enzyme treatment, especially cellulase treatment. This type of micro-brilliant cellulose is referred to here as eMFC. Enzymes have a completely different effect on fi brema than a kvam, and therefore there are significant differences between the resulting two types of micro fi brilliant cellulose.
Sättet att framställa eMFC genom enzymbehandling är en väsentlig del av tillverkningsprocessen för den nya typen av fibersuspension enligt föreliggande uppfinnlng.The method of producing eMFC by enzyme treatment is an essential part of the manufacturing process for the new type of bersuspension according to the present invention.
Föreliggande uppfinning omfattar en speciell fibersuspension som är lämplig för ett antal olika formade föremål av cellulosa. Suspensionen innefattar fibrer från sulfatmassa som har utsatts för en speciell enzymbehandling och eventuellt efterföljande dispergering och stabilisering med karboximetylcellulosa (CMC).The present invention comprises a special bers suspension which is suitable for a number of different shaped articles of cellulose. The suspension comprises sulfates from sulphate pulp which have been subjected to a special enzyme treatment and any subsequent dispersion and stabilization with carboxymethylcellulose (CMC).
Fibersuspensionen i vatten enligt uppfinningen framställs genom behandling av sulfatmassa med enzymema endoglukanas and cellobiohydrolas, följt av tillsättning av karboximetylcellulosa (CMC). De enzymbehandlade löv- och barrvedsfibrema ger en kombination av egenskaper beträffande ytladdning, flexibilitet, partikelstorlek och partikelstorleksfördelning som väsentligt skiljer sig fràn konventionell sulfatmassa. De enzymbehandlade fibrema enligt uppfinningen resulterar i mikrofibrillär cellulosa (eMFC).The fibrous suspension in water according to the invention is prepared by treating sulphate pulp with the enzymes endoglucanase and cellobiohydrolase, followed by the addition of carboxymethylcellulose (CMC). The enzyme-treated hardwood and softwood brims provide a combination of surface charge, excitability, particle size and particle size distribution properties that differ significantly from conventional sulfate pulp. The enzyme-treated brems according to the invention result in micro-brilliant cellulose (eMFC).
Mera preciserat betecknar eMFC cellulosafibrer som har sönderdelats genom enzymatisk behandling till små fragment med en stor andel av cellväggens mikrofibriller frilagda. Därtill bildas det en stor mängd av mycket fint material. Fragmenten och finmaterialet bidrar till att reducera ytporositeten och skapa en jämnare yta. De frilagda mikrofibrillema bidrar till att stärka fiber-fiber bindningar som utvecklas under torkningsprocessen. Mikrofibriller, och särskilt väldispergerade sönderdelade mikrofibriller, har en markant effekt på skapande av starka interfibrillära bindningar (Mitikka-Eklund et al. 1999).More precisely, eMFC refers to cellulose fibers that have been broken down by enzymatic treatment into small fragments with a large proportion of the cell wall micro-glasses exposed. In addition, a large amount of very fine material is formed. The fragments and material help to reduce the surface porosity and create a smoother surface. The exposed micro-glasses help to strengthen the bonds that develop during the drying process. Micro-glasses, and especially well-dispersed disintegrated micro-glasses, have a marked effect on the creation of strong inter-spectacle bonds (Mitikka-Eklund et al. 1999).
Sàledes är föreliggande uppfinning inriktad pá ett fonnat föremái av cellulosa som kan erhållas genom torkning och eventuellt pressning av en fibersuspension i vatten som innefattar cellulasenzym-behandlad mikrofibrillär sulfatmassa (eMFC) i en gjutforrn för erhållande av föremålet. I 10 15 20 25 30 35 526 681 l en utföringsfonn av uppfinningen innefattar fibersuspensionen dessutom karboximetylcellulosa (CMC). l en annan utföringsfonn av uppfinningen är cellulasenzymet endoglukanas och/eller cellobiohydrolas, och CMC har en medelmolekylvikt av över 50 000, och suspensionen har en viskositet i intervallet 100 till 3000 mPas (Brookfield, 100 r.p.m. sp4). l en föredragen utföringsform av uppfinningen är sulfatmassan en blekt sulfatmassa.Thus, the present invention is directed to a shaped article of cellulose obtainable by drying and optionally pressing a bersus suspension in water comprising cellulase enzyme-treated microbial sulfate pulp (eMFC) in a mold to obtain the article. In one embodiment of the invention, the bersus suspension further comprises carboxymethylcellulose (CMC). In another embodiment of the invention, the cellulase enzyme is endoglucanase and / or cellobiohydrolase, and CMC has an average molecular weight of over 50,000, and the suspension has a viscosity in the range of 100 to 3000 mPas (Brook® fire, 100 r.p.m. sp4). In a preferred embodiment of the invention, the sulphate pulp is a bleached sulphate pulp.
I ytterligare en annan föredragen utföringsfonn är suspensionens torrvikt i intervallet 2 till 15 %.In yet another preferred embodiment, the dry weight of the suspension is in the range of 2 to 15%.
I ännu en annan utföringsforrn av uppfinningen innefattar suspensionen dessutom oorganiska bestrykningspigment och/eller fyllmedel. l ytterligare en annan utföringsforrn av uppfinningen är föremålet av cellulosa enligt uppfinningen valt ur den grupp som består av förpackningsprodukter, såsom tràg och skålar för livsmedel och foder, eller är valt ur den grupp som består av leksaker, omament, prydnadssaker, golfpeggar och planteringskrukor.In yet another embodiment of the invention, the suspension further comprises inorganic coating pigments and / or fillers. In yet another embodiment of the invention, the article of cellulose according to the invention is selected from the group consisting of packaging products, such as trays and bowls for food and feed, or is selected from the group consisting of toys, ornaments, ornaments, golf pegs and planting pots.
Uppfinningen kommer nu att belysas med hjälp av exemplen och ritningama, men det bör förstàs att skyddsomfánget inte är begränsat till några specifikt nämnda detaljer.The invention will now be elucidated with the aid of the examples and drawings, but it should be understood that the scope of protection is not limited to any specifically mentioned details.
Beskrivning av ritningarna Figur 1 är ett diagram som visar fiberförkortning (medelfiberlängd) under och efter enzymbehandling för olika enzymbehandlingstider (1-6 timmar). Enzymdoseringen var 10 g/kg för alla provpunkter utom för B06 där enzymdosenngen ökades till 15 g/kg.Description of the drawings Figure 1 is a diagram showing fi berth shortening (mean fi berl length) during and after enzyme treatment for different enzyme treatment times (1-6 hours). The enzyme dose was 10 g / kg for all sample points except for B06 where the enzyme dose was increased to 15 g / kg.
Figur 2 illustrerar en provstàng för testning av spännings- och töjningsegenskaper och dess dimensioner.Figure 2 illustrates a test bar for testing stress and strain properties and its dimensions.
Figur 3 är ett diagram som visar dragspänning plottad mot töjning för provstänger som framställts av olika eMFC fibersuspensioner. Prov 1 var gjort av noggrant dispergerad eMFC med tillsättning av 10% CMC ; Prov 3 var samma utan tillsättning av CMC.; Prov 2 var gjort av samma eMFC massa, men med en otillräcklig dispergering och blandning.Figure 3 is a graph showing tensile stress plotted against elongation for test rods made from various eMFC bersus suspensions. Sample 1 was made of carefully dispersed eMFC with the addition of 10% CMC; Sample 3 was the same without the addition of CMC .; Sample 2 was made of the same eMFC pulp, but with insufficient dispersion and mixing.
Exempel Först beskrivs beredning av fibersuspensionen i vatten och sedan ges exempel på dess tillämpningar.Examples First, the preparation of the ers bers suspension in water is described and then examples of its applications are given.
Beredning av fibersusgension Nedan ges ett typexempel pà tillvägagångssätt vid beredningen av den enzymbehandlade fibersuspensionen. Även om halter och behandlingstider optimeras för respektive tillämpning som anges nedan är enzymbehandlingen av sulfatmassan densamma. 10 15 20 25 30 35 526 681 Enzymet som användes var Ecostone L900 från Röhm Enzyme Finland Oy och det bestär huvudsakligen av två cellulaser, nämligen cellobiohydrolas och endoglukanas.Preparation of ers bersus suspension The following is a typical example of a procedure for preparing the enzyme-treated ers bers suspension. Although levels and treatment times are optimized for each application listed below, the enzyme treatment of the sulfate pulp is the same. The enzyme used was Ecostone L900 from Röhm Enzyme Finland Oy and it consists mainly of two cellulases, namely cellobiohydrolase and endoglucanase.
ECF-blekt barrsulfatmassan med en torrhalt av 34% togs ut fràn pressfiltret på Korsnäs kartongmaskin PM5. CMC kvaliteten var FF10 fràn Noviant AB med medelmolkeylvikten 66 000. ' Ungefär 150 liter vatten vänndes till 55°C i en dubbelmantlad blandare för styrd temperaturreglering och pH justerades till 4,8 med citronsyra, eftersom pH förväntades att stiga vid tillsatts av massan. Därefter tillsattes 24 kg torr massa successivt. Enzymet tillsattes då ungefär hälften av massan blandats in, varefter resterande massa tillsattes under två timmar. Totalt krävdes det 66 g citronhydrat för att hålla ett pH mellan 5-5,5 under enzymbehandlingen. Efter det att enzymbehandlingen pågått i 7 timmar avbröts behandlingen genom att pH höjdes till 9,5 i 20 minuter genom tillsatts av natriumhydroxid, 0,5 mol. Figur 1 visar hur medelfiberlängden varierade under enzymbehandlingen.The ECF-bleached softwood sulphate pulp with a dry content of 34% was removed from the press filter on Korsnäs' cardboard machine PM5. The CMC quality was FF10 from Noviant AB with an average molecular weight of 66,000. Then 24 kg of dry mass was added successively. The enzyme was added when about half of the mass was mixed in, after which the remaining mass was added for two hours. A total of 66 g of lemon hydrate was required to maintain a pH between 5-5.5 during the enzyme treatment. After the enzyme treatment was continued for 7 hours, the treatment was stopped by raising the pH to 9.5 for 20 minutes by adding sodium hydroxide, 0.5 mol. Figure 1 shows how the mean fiber length varied during the enzyme treatment.
En annan typ av suspension erhölls genom att ytterligare tillsätta 9,6 kg CMC under kraftig omröring som upprätthölls i 45 minuter. eMFC-blandningen hade en tonhalt av 15%.Another type of suspension was obtained by adding an additional 9.6 kg of CMC with vigorous stirring which was maintained for 45 minutes. The eMFC blend had a tonality of 15%.
Exempel 1 'fillverkning av föggackningsgrodukter genom awattning och torkning av fibersusgensionen i speciella g'|utfonnar. eMFC-blandningen visas i det följande ge unika möjligheter till att användas som fömyelsebart råmaterial för fonnade förpackningsprodukter såsom tex tråg och skålar för livsmedel och foder, och därtill leksaker, omament, prydnadssaker, golfpeggar och planteringskrukor.Example 1 'Effect of pre-gassing products by dewatering and drying the bersus suspension in special molds. The eMFC blend is shown below to provide unique opportunities to be used as a renewable raw material for found packaging products such as trays and bowls for food and feed, as well as toys, ornaments, ornaments, golf pegs and planting pots.
Speciella provstänger (Figur 2) för testning av mekanisk styrka tillverkades av mikrofibrillär cellulosa som framställts genom enzymbehandling (eMFC). eMFC-massan bereddes såsom ovan beskrivits. eMFC-massan hälldes i en speciell gjutfonn och awattnades genom pressning (<100 kPa) och torkning (rumstemperatur >12 h).Special test rods (Figure 2) for mechanical strength testing were made of micro - brilliant cellulose produced by enzyme treatment (eMFC). The eMFC pulp was prepared as described above. The eMFC pulp was poured into a special mold and dewatered by pressing (<100 kPa) and drying (room temperature> 12 hours).
Materialets egenskaper karakteriserades i dragbelastning (Figur 3) och matchades mot egenskapema hos några vanliga termoplaster i Tabell 1. Provstängema (Prover) 1 och 3 var relativt styva och i det hänseendet jämförbara med flera av terrnoplastema. Detta gäller särskilt Prov 1 som har dispergerats med CMC. Prov 2, där eMFC-massan inte hade dispergerats fullständigt, verkade inte vara intressant för tillämpningar där mekaniska egenskaper är viktiga. Provema 1 och 3 är tämligen spröda, och varken brottspänning, ca 4 MPa, eller brottöjning 0,1-0,3%, var särskilt höga jämfört med plastema som användes som referenser. Detta är troligen en konsekvens av att materialen 10 15 526 681 är icke-homogena (uppbyggda av fibrer) och därför känsliga för defekter. Troligen är slaghàllfastheten också ganska låg. Även om det forrnade materialet som är baserat på eMFC-massa och som eventuellt innehåller CMC inte kan matcha termoplastema ialla hänseenden när det gäller mekaniska egenskaper, är dess styvhet avsevärt högre än för andra träfiber-baserade formade material.The properties of the material were characterized in tensile load (Figure 3) and matched against the properties of some ordinary thermoplastics in Table 1. The test rods (Samples) 1 and 3 were relatively rigid and in that respect comparable to fl era of the thermoplastics. This is especially true of Sample 1 which has been dispersed with CMC. Sample 2, where the eMFC pulp had not been completely dispersed, did not appear to be of interest for applications where mechanical properties are important. Samples 1 and 3 are rather brittle, and neither breaking stress, about 4 MPa, nor breaking elongation 0.1-0.3%, were particularly high compared to the plastics used as references. This is probably a consequence of the fact that the materials are non-homogeneous (built up of fi bres) and therefore susceptible to defects. The impact strength is probably also quite low. Although the molded material based on eMFC pulp and possibly containing CMC cannot match the thermoplastics in all respects in terms of mechanical properties, its stiffness is considerably higher than for other wood-based molded materials.
Tablell 1.Table 1.
Resultat från dragprovning av plattor som har tillverkats enligt det beskrivna förfarandet.Results from tensile testing of plates manufactured according to the described method.
Dessa jämförs med motsvarande egenskaper för några vanliga termoplaster. *1 Dispergerad i 5 minuter i en laboratorieblandare *2 HD-polyeten, vanlig "vardagsplast”, som används till rör, behållare mm *a LD-polyeten, vanlig ”vardagsplastfi som används till plastpåsar, filmer mm *4 Polykarbonat, konstruktionsplast, som används till skyddshjälmar, Kassetter mm *5 Polyamid, Nylon, konstruktionsplast, som används till kugghjul, lager, kåpor mm *° Polystyren, vanlig "vardagsplast", som används till förpackningar, engángsartiklar mm Material E-modul, Brottspänning, Brotlöjning, % GPa MPa Prov 1 eMFC +10 pph CMC, dispergerad*' 3,4 4,0 0,1 Prov 2 eMFC, utan CMC, ej dispergerad 0,14 0,1 2,3 P3 MFC utan CMC, dispergerad 1,8 4,3 0,3 HDPE*2 0,8 30 upp till 1000 LDPE*° 0,2 10 upp till 500 PC*“ 2,3 70 100 PA e* 1,4 ss 200 Ps* 3,3 so 3 10 526 681 Referenser Ohlsson, J., Gabrielli, l., Thilén, M. (2000) Fömyelsebara material. Struktur 1, 3-5 httpzllwww.nutek.se/inforrnationltit/398/cellulosa.html. Ny energisnål process, 2000-10-05 Mitikka-Eklund M, Mari Halttunen, Melander M, Ruuttunen K. och Vourinen T. (1999): ”Fibre engineering", 10th lntemational symposium on wood and pulping chemistry, Yokohama, Japan, vol. 1. PP 432.These are compared with the corresponding properties of some ordinary thermoplastics. * 1 Dispersed for 5 minutes in a laboratory mixer * 2 HD polyethylene, ordinary "everyday plastic", used for pipes, containers etc. * a LD polyethylene, ordinary "everyday plastic fi used for plastic bags, mer lmer etc. * 4 Polycarbonate, construction plastic, which used for safety helmets, cassettes etc. * 5 Polyamide, Nylon, construction plastic, used for gears, bearings, covers etc. * ° Polystyrene, ordinary "everyday plastic", used for packaging, disposable items etc. Material E-module, Breaking stress, Fracture,% GPa MPa Sample 1 eMFC +10 pph CMC, dispersed * '3.4 4.0 0.1 Sample 2 eMFC, without CMC, not dispersed 0.14 0.1 2.3 P3 MFC without CMC, dispersed 1.8 4, 3 0.3 HDPE * 2 0.8 30 up to 1000 LDPE * ° 0.2 10 up to 500 PC * “2.3 70 100 PA e * 1.4 ss 200 Ps * 3.3 so 3 10 526 681 References Ohlsson, J., Gabrielli, l., Thilén, M. (2000) Renewable materials Structure 1, 3-5 httpzllwww.nutek.se/inforrnationltit/398/cellulosa.html New energy-efficient process, 2000-10-05 Mitikka-Eklund M, Mari Halttunen, Melander M, Ruuttunen K. and Vourinen T. (1999): "Fiber engineering", 10th lntemational symposium on wood and pulping chemistry, Yokohama, Japan, vol. 1. PP 432.
Nissan A, (1977): “Lectures in fiber science in paper, in Pulp and Paper Technology series (\N.C. Walker ed.), TAPPl PRESS, Atlanta.Nissan A, (1977): Lectures in scienceber science in paper, in Pulp and Paper Technology series (\ N.C. Walker ed.), TAPPl PRESS, Atlanta.
Robinson J.V., (1980): “Fiber bonding", in Pulp and paper chemistry and chemical technology, Vol. 2, (J.P: Casey, Ed.), John Wiley and Son, New York, p. 915.Robinson J.V., (1980): "Fiber bonding", in Pulp and paper chemistry and chemical technology, Vol. 2, (J.P: Casey, Ed.), John Wiley and Son, New York, p. 915.
Claims (8)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0203742A SE526681C2 (en) | 2002-12-18 | 2002-12-18 | Fiber suspension of enzyme treated sulphate pulp as raw material for packaging |
| PCT/SE2003/002030 WO2004055268A1 (en) | 2002-12-18 | 2003-12-18 | Fibre suspension of enzyme treated sulphate pulp and carboxymethylcellulose as raw material for packages. |
| EP03781247A EP1585861A1 (en) | 2002-12-18 | 2003-12-18 | Fibre suspension of enzyme treated sulphate pulp and carboxymethylcellulose as raw material for packages. |
| AU2003288866A AU2003288866A1 (en) | 2002-12-18 | 2003-12-18 | Fibre suspension of enzyme treated sulphate pulp and carboxymethylcellulose as raw material for packages. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0203742A SE526681C2 (en) | 2002-12-18 | 2002-12-18 | Fiber suspension of enzyme treated sulphate pulp as raw material for packaging |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE0203742D0 SE0203742D0 (en) | 2002-12-18 |
| SE0203742L SE0203742L (en) | 2004-06-19 |
| SE526681C2 true SE526681C2 (en) | 2005-10-25 |
Family
ID=20289897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0203742A SE526681C2 (en) | 2002-12-18 | 2002-12-18 | Fiber suspension of enzyme treated sulphate pulp as raw material for packaging |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1585861A1 (en) |
| AU (1) | AU2003288866A1 (en) |
| SE (1) | SE526681C2 (en) |
| WO (1) | WO2004055268A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2404194C2 (en) * | 2005-06-28 | 2010-11-20 | Акцо Нобель Н.В. | Polysaccharide microfibre synthesis method |
| US7700764B2 (en) | 2005-06-28 | 2010-04-20 | Akzo Nobel N.V. | Method of preparing microfibrillar polysaccharide |
| FI124724B (en) | 2009-02-13 | 2014-12-31 | Upm Kymmene Oyj | A process for preparing modified cellulose |
| SE533509C2 (en) * | 2009-07-07 | 2010-10-12 | Stora Enso Oyj | Method for producing microfibrillar cellulose |
| SE0950534A1 (en) * | 2009-07-07 | 2010-10-12 | Stora Enso Oyj | Method for producing microfibrillar cellulose |
| BR112012029601B1 (en) | 2010-05-27 | 2020-10-27 | Kemira Oyj | composition, method for producing a self-supporting film, self-supporting film, multilayered object, method for producing a multilayered object and use of a composition |
| JP2013531749A (en) | 2010-07-12 | 2013-08-08 | アクゾ ノーベル ケミカルズ インターナショナル ベスローテン フエンノートシャップ | Cellulose fiber composition |
| SE1050985A1 (en) * | 2010-09-22 | 2012-03-23 | Stora Enso Oyj | A paper or paperboard product and a process of manufacture of a paper or paperboard product |
| CN103534409B (en) | 2011-05-13 | 2017-02-15 | 斯托拉恩索公司 | Process for treating cellulose and cellulose treated according to the process |
| FI126698B (en) * | 2013-12-18 | 2017-04-13 | Teknologian Tutkimuskeskus Vtt Oy | A process for making fibrillated cellulosic material |
| FI127716B (en) | 2014-03-31 | 2018-12-31 | Upm Kymmene Corp | A method for producing fibrillated cellulose |
| FI126042B (en) | 2014-03-31 | 2016-06-15 | Upm Kymmene Corp | Process for the manufacture of nanofibrillar cellulose and nanofibrillar cellulose product |
| WO2016167648A1 (en) * | 2015-04-13 | 2016-10-20 | Huhtamaki Molded Fiber Technology B.V. | Method for manufacturing a moulded fiber product, such as an egg packaging, from a biomass material of plant origin, and such moulded fiber product |
| NL2014624B1 (en) * | 2015-04-13 | 2017-01-20 | Huhtamaki Molded Fiber Tech Bv | Method for manufacturing a moulded fiber product, such as an egg packaging, from a biomass material of plant origin, and such moulded fiber product. |
| SE539563C2 (en) | 2016-02-29 | 2017-10-10 | Stora Enso Oyj | Method of manufacturing 3d shaped articles comprising nanofibrillated polysaccharide from cellulose |
| SE540343C2 (en) * | 2016-11-01 | 2018-07-17 | Stora Enso Oyj | A corrugated board comprising an adhesive comprising starch and fine microfibrillated cellulose |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT405847B (en) * | 1996-09-16 | 1999-11-25 | Zellform Ges M B H | METHOD FOR PRODUCING BLANKS OR SHAPED BODIES FROM CELLULOSE FIBERS |
| US6635146B2 (en) * | 1998-07-08 | 2003-10-21 | Kimberly-Clark Worldwide, Inc. | Enzymatic treatment of pulp to increase strength using truncated hydrolytic enzymes |
-
2002
- 2002-12-18 SE SE0203742A patent/SE526681C2/en not_active IP Right Cessation
-
2003
- 2003-12-18 WO PCT/SE2003/002030 patent/WO2004055268A1/en not_active Application Discontinuation
- 2003-12-18 EP EP03781247A patent/EP1585861A1/en not_active Withdrawn
- 2003-12-18 AU AU2003288866A patent/AU2003288866A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004055268A1 (en) | 2004-07-01 |
| SE0203742L (en) | 2004-06-19 |
| AU2003288866A1 (en) | 2004-07-09 |
| SE0203742D0 (en) | 2002-12-18 |
| EP1585861A1 (en) | 2005-10-19 |
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