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WO2015057061A1 - Procédé pour fabriquer un emballage de fibres moulées - Google Patents

Procédé pour fabriquer un emballage de fibres moulées Download PDF

Info

Publication number
WO2015057061A1
WO2015057061A1 PCT/NL2014/050712 NL2014050712W WO2015057061A1 WO 2015057061 A1 WO2015057061 A1 WO 2015057061A1 NL 2014050712 W NL2014050712 W NL 2014050712W WO 2015057061 A1 WO2015057061 A1 WO 2015057061A1
Authority
WO
WIPO (PCT)
Prior art keywords
lignocellulosic biomass
fibres
pulp
fibre
visible
Prior art date
Application number
PCT/NL2014/050712
Other languages
English (en)
Inventor
Benno Alexander Koopmans
Dirk Schouten
Egbert Hiemstra
Original Assignee
Huhtamaki Molded Fiber Technology B.V.
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=49328459&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2015057061(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Huhtamaki Molded Fiber Technology B.V. filed Critical Huhtamaki Molded Fiber Technology B.V.
Publication of WO2015057061A1 publication Critical patent/WO2015057061A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/32—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for eggs
    • B65D85/324—Containers with compartments made of pressed material
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J7/00—Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/12—Organo-metallic compounds
    • 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
    • D21H21/28—Colorants ; Pigments or opacifying agents

Definitions

  • the present invention relates to a method for manufacturing a moulded fibre packaging in particular a food package , more particular an egg package.
  • fibre packaging materials such as egg boxes and fibre trays are uniform in colour.
  • such fibre packaging materials are less appealing to the customer.
  • the package as a whole could be provided with different colours by employing labelling and/or printing techniques, such techniques are generally much too expensive. Consequently, there is a need within the art for a cheap and uncomplicated process for the manufacture of more appealing fibre packaging materials.
  • packaging materials for e. g. electronic equipment comprise less attractive materials such as white coloured expanded polystyrene and similar synthetic materials that can be recycled only with difficulty and which are detrimental to the environment.
  • packaging materials based on paper pulp in particular for food products such as fruit, that are more appealing to the retail customer.
  • coloured packaging materials based on paper pulp have to comply with rather severe food regulations, i. e. that the colouring agent used does not leach into and contaminate the food product.
  • Articles based on paper pulp are manufactured in a pulp moulding process wherein pulp moulding machines are employed. The basic principles of manufacture are to provide recovered paper (including newspaper, magazines) or paper furnish that is re-pulped.
  • the invention aims to provide a method for manufacturing a moulded fibre food packaging in particular an egg package, which method enables to obtain a package in a more environmental friendly way. It will be clear that the invention is also beneficial for fruit and vegetable packages, cup carriers and industrial buffering means.
  • Yet another object of the invention is to provide a food package which
  • a moulded fibre packaging in particular a food package , more particular an egg package, comprising,
  • lignocellulosic biomass originating from grass, leaves of tomato plants, stems of tomato plants, and/or rapeseed straw to the pulp container to obtain a pulp mix comprising between 5-80 % lignocellulosic biomass, preferably between 5-60% lignocellulosic biomass, wherein the lignocellulosic biomass contains between 0 to 2% protein in dry weight, and before adding the lignocellulosic biomass to the pulp container, processing the lignocellulosic biomass for removing protein from the lignocellulosic biomass such that the lignocellulosic biomass contains between 0 to 2% protein in dry weight.
  • the lignocellulosic biomass containing between 0 to 2% protein in dry weight enables to perform the method in an economical that is to obtain packages therewith that can compete in the market.
  • ordinary grass containing much more protein, does suffer from bad drainage, long drying times and/or high energy consumption which lead to slow production and/or high production cost.
  • the high content of lignocellulosic biomass not originating from wood wherein the lignocellulosic biomass contains between 0 to 2% protein in dry weight enables to optimize operations in that a choice can be made between raw material flow being ordinary pulp originating from paper thus wood and the lignocellulosic biomass not originating from wood. Also the production process is much more efficient.
  • the high content lignocellulosic biomass not originating from wood enables to provide a package a "green" appearance.
  • packages obtained by the method according to the invention perform surprisingly well in known compression tests for egg packages. This was not expected because lignocellulosic biomass not originating from wood is much weaker than wood based fibres. It is found that about 50% lignocellulosic biomass not originating from wood still provides the effect of the invention without compromising too much on strength of the package.
  • the lignocellulosic biomass not originating from wood being added to the wood based fibre pulp at a rate of 5-80 % lignocellulosic biomass, preferably between 5-60% lignocellulosic biomass on dry fibre weight enables to manufacturing a moulded fibre food packaging in a an environmental friendly way without
  • lignocellulosic biomass not originating from wood as raw material for the fibre pulp mix aims at becoming less independent of wood fibres. This is necessary when paper as journals will become less available what will lead to higher prices of paper in the future.
  • the lignocellulosic biomass originates from grass, leaves of tomato plants, stems of tomato plants, and/or rapeseed straw.
  • the grass originates preferably from controlled cultivation such that regulation in connection with food contact may be respected with more ease. More preferably this controlled cultivation does not involve fertilizing. It is conceivable to use other grass as well like roadside grass for non food packages. It will be understood that the invention is not limited to grass fibres including other gramineous plants. It is conceivable that other natural fibres, other than wood, like straw fibres, sugar beet residue, are used in the invention.
  • the method comprises, before adding the lignocellulosic biomass to the pulp container, processing the lignocellulosic biomass for removing protein from the lignocellulosic biomass such that the lignocellulosic biomass contains between 0 to 2% protein in dry weight.
  • processing the lignocellulosic biomass for removing protein from the lignocellulosic biomass such that the lignocellulosic biomass contains between 0 to 2% protein in dry weight.
  • the method comprises pre-processing of the lignocellulosic biomass, the pre-processing comprising soaking the lignocellulosic biomass in water for a soaking period of at least 1 day preferably at least 2 days.
  • Pre-processing here means processing the lignocellulosic biomass before adding the lignocellulosic biomass to the pulp container.
  • the pre-processing comprises cutting the lignocellulosic biomass, preferably before the soaking, for obtaining visible
  • the visible lignocellulosic biomass fibres having a length such that the visible lignocellulosic biomass fibres may surface on the fibre pulp mix, the visible lignocellulosic biomass fibres preferably having an average length smaller than 5 cm, preferably smaller than 2 cm, more preferably between 1,5 and 2 cm.
  • the visible lignocellulosic biomass fibres having a length such that the fibres may surface on the fibre pulp mix ensure that during moulding these relatively long fibres are positioned at a package surface. These long fibres are then visible on a package and can be distinguished by touch. This provides an improved appearance to the food package.
  • visible has its ordinary meaning that the fibre can be seen with the naked eye without any aid. It will therefore be understood that fibre does not refer to fibres on cellulose level. Instead a fibre here is on biomass level and may have a width typical between 0.1 mm to 2 mm.
  • the pre-processing comprises refining the visible lignocellulosic biomass fibres for facilitating interaction between the fibre pulp and the visible lignocellulosic biomass fibres in the pulp mix.
  • Refining is a process which is known per se in the paper and paper pulp processing industry. The interaction has both a mechanical and chemical component, a mechanical component in that binding surface between fibres is increased, and a chemical component in that e.g. forming of hydrogen bridges is promoted. This refining seems important in connection with strength of the thus manufactured package.
  • the pre-processing comprises adjusting the degree of refining the visible lignocellulosic biomass fibres for facilitating firstly interaction between the fibre pulp and the visible lignocellulosic biomass fibre in the pulp mix, and secondly allowing a portion of the visible lignocellulosic biomass fibres to surface on the pulp mix. Because of the adjusting, an optimum can be chosen for both the strength of the package and the so called "green" appearance.
  • the pre-processing comprises providing a refining device comprising a number of refiner discs arranged at a mutual disc distance wherein adjusting the degree of refining the visible lignocellulosic biomass fibres comprises adjusting the disc distance less than 1,5 mm, preferably between 0,5 and 1,5 mm, and wherein the refining comprises refining the visible lignocellulosic biomass fibres at a concentration of between 10 kg to 75 kg, preferably about 25 kg visible lignocellulosic biomass fibres in dry weight, per 1000 litre of water.
  • a refiner is a Sprout Waldron disc refiner.
  • the refining comprising fibrillating the visible lignocellulosic biomass fibres for increasing binding surface of the visible
  • fibrillate means the partly splitting of a fibre into fibrils.
  • the method comprises providing a vacuum mould which has a mesh work for sucking up said fibre pulp mix and forming the packaging, wherein the mesh work has mesh openings having a mesh size and the visible lignocellulosic biomass fibres have a length between 50 to 150 times the mesh size, preferably about 100 times the mesh size. This ensures that the visible lignocellulosic biomass fibres extend lengthwise along the mould such that the fibre is visible at a surface of the manufactured package.
  • a typical mesh size for moulding packages is 60 Tyler Mesh which corresponds with a mesh size of 0.251 mm.
  • the method comprises the step of adding an aromatic substance to the fibre pulp mix for providing a grass smell to the moulded fibre food packaging.
  • the possibly grassy smell can be strengthened or covered as desired by the addition of the aromatic substance.
  • the pulp mix is coloured by adding a colour agency, preferably a green colour agency comprising chlorophyll, to the fibre pulp mix.
  • a colour agency preferably a green colour agency comprising chlorophyll
  • the visible lignocellulosic biomass fibres are coloured before adding the visible lignocellulosic biomass fibres to the fibre pulp mix to provide an increased contrast between the grass fibre and the moulded fibre package. This even more improves the appealing effect of the package.
  • colouring fibres before adding these to the pulp specific reference is made to WO/2006/091102 of HUHTAMAKI MOLDED FIBER TECHNOLOGY B.V. titled "PROCESS FOR THE MANUFACTURE OF A MOTTLED FIBRE PACKAGING".
  • the invention further provides a moulded fibre packaging in particular a food package , more particular an egg package obtained by the method according to the invention, the packaging comprising between 10 to 60 wt. % lignocellulosic biomass not originating from wood.
  • visible lignocellulosic biomass fibres protrude from a package surface to such an extent that separate visible lignocellulosic biomass fibres can be distinguished by sight and/or touch. This even more improves the appealing effect of the package.
  • Fig. 1 in perspective view a package obtained by the method according to the invention
  • fig. 2 a cross sectional side view of the package of fig. 1;
  • fig. 3 a detail of an outer surface of the package of fig. 1;
  • fig. 4 a simplified process scheme of an embodiment of the method according to the invention. Detailed description of embodiments
  • a moulded fibre egg package 1 is shown.
  • the package 1 is made from moulded fibre containing about 50 % grass fibres.
  • Grass fibres 12 protrude from a package outside surface 2 to such an extent that separate grass fibres can be distinguished by sight and/or touch.
  • These longer grass fibres 12 have a length of about 25 mm.
  • the longer grass fibres 12 have a length such that the fibres are able to float on a fibre pulp which enables that during moulding these long fibres are positioned at the package surface.
  • These protruding fibres 12 even more improve the appealing effect of the package 1.
  • Grass fibres 12 protrude even more from a package inside surface 3, 4 also because that inside surface is determined by the suction side of a mould. This suction side of a mould is a well known concept in manufacturing a moulded fibre food packaging.
  • Fig. 3 shows a detail of an outer surface 2 of the package 1.
  • Fig. 4 shows a process scheme of an embodiment of the method according to the invention.
  • a fibre pulp, for a moulding process is contained in a pulp container 9 also referred to as storage tank and also known as thick stock tank.
  • the process of moulding a moulded fibre package is indicate with reference number 11 and is not described here since this is known per se.
  • Such a process of moulding a moulded fibre package is fed with the fibre pulp mix from the pulp container 9.
  • adding lignocellulosic biomass not originating from wood 5 is added to the pulp container 9 to obtain a pulp mix comprising between 5- 60% lignocellulosic biomass, wherein the lignocellulosic biomass contains between 0 to 2% protein in dry weight.
  • the method comprises pre-processing of the lignocellulosic biomass 5. This preprocessing may be done on site or (partly) elsewhere. When the lignocellulosic biomass is pre-processed elsewhere, the lignocellulosic biomass fibres may be added directly to the pulp container 9 which added lignocellulosic biomass fibres are indicated with reference number 10.
  • the pre-processing comprises soaking 6 the lignocellulosic biomass 5 in water for a soaking period of at least 1 day preferably at least 2 days.
  • the pre-processing comprises cutting 7 the lignocellulosic biomass 5, preferably before the soaking 6, for obtaining visible lignocellulosic biomass fibres having a length such that the visible lignocellulosic biomass fibres may surface on the fibre pulp mix in the storage tank 9.
  • the pre-processing comprises refining 8 the visible lignocellulosic biomass fibres for facilitating interaction between the fibre pulp and the visible lignocellulosic biomass fibres in the pulp mix.
  • the refining is performed in a refining device (not shown) comprising a number of refiner discs arranged at a mutual disc distance.
  • the degree of refining the visible lignocellulosic biomass fibres is set by adjusting the disc distance between 0,5 and 1,5 mm.
  • the refining of the visible lignocellulosic biomass fibres is done at a concentration of between 10 kg to 75 kg, preferably about 25 kg visible lignocellulosic biomass fibres in dry weight, per 1000 litre of water.
  • An example of such a refiner is a Sprout Waldron disc refiner.
  • the lignocellulosic biomass Before adding the lignocellulosic biomass 5 to the pulp container 9, the lignocellulosic biomass may be processed for removing protein from the lignocellulosic biomass such that the lignocellulosic biomass contains between 0 to 2% protein in dry weight. This process is not shown here.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Paper (AREA)
  • Packaging Frangible Articles (AREA)
  • Packages (AREA)
  • Wrappers (AREA)
  • Processing Of Meat And Fish (AREA)

Abstract

L'invention porte sur un procédé pour fabriquer un emballage de fibres moulées, en particulier un emballage alimentaire, plus particulièrement, un emballage d'œufs, lequel procédé met en œuvre la distribution d'une pâte de fibres en vue d'un processus de moulage, la pâte de fibres étant contenue dans un récipient de pâte (9), et lequel procédé met en œuvre l'addition d'une biomasse lignocellulosique (5), non issue de bois, au récipient de pâte (9) afin d'obtenir un mélange de pâte comprenant de 5 à 80 % de biomasse lignocellulosique, la biomasse lignocellulosique contenant entre 0 et 2 % de protéines en poids sec.
PCT/NL2014/050712 2013-10-15 2014-10-14 Procédé pour fabriquer un emballage de fibres moulées WO2015057061A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13188739.0A EP2862815B1 (fr) 2013-10-15 2013-10-15 Procédé de fabrication d'un matériau d'emballage moulé de fibres et matériau d'emballage alimentaires moulé de fibres
EP13188739.0 2013-10-15

Publications (1)

Publication Number Publication Date
WO2015057061A1 true WO2015057061A1 (fr) 2015-04-23

Family

ID=49328459

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2014/071798 WO2015055544A1 (fr) 2013-10-15 2014-10-10 Unité d'emballage comprenant de la biomasse lignocellulosique ne provenant pas du bois et méthode de fabrication d'une telle unité d'emballage
PCT/NL2014/050712 WO2015057061A1 (fr) 2013-10-15 2014-10-14 Procédé pour fabriquer un emballage de fibres moulées

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/071798 WO2015055544A1 (fr) 2013-10-15 2014-10-10 Unité d'emballage comprenant de la biomasse lignocellulosique ne provenant pas du bois et méthode de fabrication d'une telle unité d'emballage

Country Status (9)

Country Link
US (1) US20160257486A1 (fr)
EP (2) EP2862815B1 (fr)
DK (2) DK2862815T3 (fr)
ES (2) ES2624552T3 (fr)
HR (2) HRP20210784T1 (fr)
HU (2) HUE033565T2 (fr)
PL (2) PL2862815T3 (fr)
TR (1) TR201708733T4 (fr)
WO (2) WO2015055544A1 (fr)

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WO2018067006A1 (fr) * 2016-10-03 2018-04-12 Huhtamaki Molded Fiber Technology B.V. Unité d'emballage alimentaire biodégradable et compostable obtenue à partir d'un matériau de pâte moulé, et procédé de fabrication d'une telle unité d'emballage alimentaire

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HRP20210784T1 (hr) 2021-06-25
WO2015055544A1 (fr) 2015-04-23
HRP20170606T1 (hr) 2017-09-08
HUE033565T2 (hu) 2017-12-28
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DK3058137T3 (da) 2021-05-10
DK2862815T3 (en) 2017-05-08
PL3058137T3 (pl) 2021-09-27
ES2624552T3 (es) 2017-07-14
PL2862815T3 (pl) 2017-09-29
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HUE054253T2 (hu) 2021-08-30
TR201708733T4 (tr) 2018-11-21

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