EP3575466A1 - Matériau composite fibreux pouvant être dissout dans l'eau - Google Patents

Matériau composite fibreux pouvant être dissout dans l'eau Download PDF

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Publication number
EP3575466A1
EP3575466A1 EP18174929.2A EP18174929A EP3575466A1 EP 3575466 A1 EP3575466 A1 EP 3575466A1 EP 18174929 A EP18174929 A EP 18174929A EP 3575466 A1 EP3575466 A1 EP 3575466A1
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EP
European Patent Office
Prior art keywords
mpas
composite material
fiber composite
binder
fiber
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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.)
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Application number
EP18174929.2A
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German (de)
English (en)
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EP3575466B1 (fr
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Intervisa Beteiligung und Verwaltung GmbH
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Intervisa Beteiligung und Verwaltung GmbH
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Priority to EP18174929.2A priority Critical patent/EP3575466B1/fr
Application filed by Intervisa Beteiligung und Verwaltung GmbH filed Critical Intervisa Beteiligung und Verwaltung GmbH
Priority to HUE18174929A priority patent/HUE060920T2/hu
Priority to PL18174929.2T priority patent/PL3575466T3/pl
Priority to ES18174929T priority patent/ES2924110T3/es
Priority to US17/059,339 priority patent/US20210230806A1/en
Priority to PCT/EP2019/063447 priority patent/WO2019228920A1/fr
Priority to JP2020566705A priority patent/JP2021525320A/ja
Publication of EP3575466A1 publication Critical patent/EP3575466A1/fr
Application granted granted Critical
Publication of EP3575466B1 publication Critical patent/EP3575466B1/fr
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • 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
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • 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
    • 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
    • D21H17/25—Cellulose
    • D21H17/26—Ethers thereof
    • 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
    • D21H17/33—Synthetic macromolecular 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/002—Tissue paper; Absorbent 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
    • D21H27/002—Tissue paper; Absorbent paper
    • D21H27/004—Tissue paper; Absorbent paper characterised by specific parameters
    • D21H27/005—Tissue paper; Absorbent paper characterised by specific parameters relating to physical or mechanical properties, e.g. tensile strength, stretch, softness
    • 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
    • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents

Definitions

  • the invention relates to a fiber-decomposable fiber composite material comprising a number of fiber elements and at least one binder which is formed from or comprises a water-soluble polysaccharide.
  • Corresponding fiber-decomposable fiber composite materials or fiber products produced therefrom are basically known.
  • Corresponding fiber composite materials require rapid and complete disintegration or rapid and complete decomposition upon contact with water.
  • Corresponding fiber composite materials should accordingly disintegrate or decompose as quickly as possible and as completely as possible upon contact with water.
  • Improvable on corresponding fiber composite materials are sometimes their structural properties, d. H. in particular their mechanical properties. This applies in particular to fiber composite materials whose specific field of application or use at least at times includes a certain mechanical stress on the fiber composite materials.
  • the invention is based on the object, in particular with regard to its structural properties, ie in particular to indicate its mechanical properties, improved water-decomposable fiber composite material.
  • fiber composite material has particular properties which are particularly pronounced in particular disintegration properties in water as well as particular structural properties, i. H. in particular mechanical properties exist.
  • the fiber composite material has a comparatively low wet strength, ie a comparatively low mechanical strength on contact with water.
  • the low wet strength enables rapid and complete disintegration or rapid and complete decomposition of the fiber composite material into individual fiber elements on contact with water.
  • the fiber composite material decomposes or decomposes the fiber composite material therefore very fast due to its low wet strength or its high decomposition or decomposition ability, so that after disposal of the fiber composite material, eg. As in drains, toilets, etc., avoiding blockages in a sewer system or the fiber composite material in the sewage treatment plant before the actual purification of the wastewater must not be separated separately.
  • the fiber composite material allows a (largely) complete decay on contact with water, ie in particular after introduction into water.
  • the fiber composite material disintegrates within less than 1 hour, preferably within less than 15 minutes, more preferably within less than 1 minute, more preferably within less than 30 seconds, more preferably within less than 10 seconds.
  • individual fiber elements are present, which are no longer connected to one another and - in particular due to a comparatively short fiber length - can no longer be connected to one another in dispersion, so that, for example, Eg deposits, Clumping or blockages in / from sewage systems can be avoided.
  • the fiber length is typically so short that clogging of fiber elements in a (turbulent) flow field, e.g. B. a sewer system is not possible.
  • the low wet strength and the generally good biodegradation and availability of the fiber composite material leads to a rapid and complete disintegration even in the case of an (accidental) release in nature and environment up to a complete metabolism of the fiber composite material.
  • wet strength is understood to mean the strength of the fiber composite material when in contact with water or in the presence of an excess of water.
  • the wet strength can z. B. by a wet tensile test according to DIN EN ISO 12625, Part 5 (Date of issue: 2005-09) "Determination of width-related wet tensile strength" are determined.
  • the fiber composite material preferably has a wet strength, determined by wet tensile test according to DIN EN ISO 12625 at 20 ° C and a relative humidity of 65%, of at most 2 N, preferably of at most 1 N, more preferably of at most 0.5 N.
  • the fiber composite material has a wet strength of at most 2N, preferably at most 1N, more preferably at most 0.5N.
  • a wet strength determined by wet tensile test according to DIN EN ISO 12625 at 20 ° C and a relative humidity of 65%, of at most 2 N, preferably of at most 1 N, more preferably of at most 0.5 N.
  • the fiber composite material In addition to the low wet strength, the fiber composite material therefore typically also has a comparatively high wet strength, ie a comparatively high mechanical strength in the wet state.
  • the Fiber composite material thus has a relatively high mechanical strength even in the wet state with short-term mechanical stress, for example by friction on a substrate.
  • dry strength is understood to mean the strength of the fiber composite material, in particular in water or in the presence of an aqueous liquid containing at least one organic component.
  • the at least one organic component may, for. From the group: aliphatic alcohols, aliphatic ethers, aliphatic esters, monosaccharides, oligosaccharides and mixtures or combinations thereof.
  • the moisture resistance can z. B. by a strip tensile test according to DIN EN ISO 13934-1 (issue date: 1999-04) are determined.
  • the fiber composite material preferably has a wet strength, determined by means of strip tensile test according to DIN EN ISO 13934-1 at 20 ° C and a relative humidity of 65%, of more than 3 N, in particular in a range between 3 N and 250 N, preferably in a range between 4 N and 150 N, more preferably in a range between 4.5 N to 120 N, more preferably in a range between 5 N and 80 N, further preferably in a range between 6 N to 55 N, on.
  • a wet strength determined by means of strip tensile test according to DIN EN ISO 13934-1 at 20 ° C and a relative humidity of 65%, of more than 3 N, in particular in a range between 3 N and 250 N, preferably in a range between 4 N and 150 N, more preferably in a range between 4.5 N to 120 N, more preferably in a range between 5 N and 80 N, further preferably in a range between 6 N to 55 N, on.
  • DIN EN ISO 13934-1 at 20 ° C
  • the wet strength of the fiber composite material is defined by the composition of the constituents or components forming the fiber composite material or can be specifically defined by targeted variation of the composition of the constituents or components forming the fiber composite material. In particular, it is possible to tailor the wet strength of the fiber composite material to a specific application or use of the fiber composite material by deliberately varying the composition of the components or components forming the fiber composite material. The same applies to the moisture resistance of the fiber composite material.
  • the fiber composite material comprises as essential components or components a number or a plurality of fiber elements and at least one binder. Specific embodiments of the fiber elements or of the binder as well as any further constituents or components of the fiber composite material are explained in more detail below.
  • the fiber elements are wettable in water or in an aqueous solution.
  • the fiber elements may be swellable on contact with water.
  • the fiber elements can therefore have a certain capacity for water, which leads to contact with water to a swelling (volume increase) of the fiber elements.
  • the fiber elements can form or be understood as a basic matrix of the fiber composite material.
  • the fiber elements can be made of natural, d. H. animal or vegetable, or synthetic inorganic and / or organic fibers or fiber materials.
  • the fiber elements are formed from natural organic fibers or fiber materials. It is chemically and / or geometrically and / or physically the same or chemically and / or geometrically and / or physically different fiber elements can be used.
  • mixtures of different, d. H. are present in at least one chemical, geometric or physical property of different, fibrous elements.
  • inorganic fiber elements are basalt, glass, silica, mineral, carbon fibers.
  • organic fiber elements are hemp or pulp fibers (cellulose fibers).
  • synthetic organic fiber elements are polyester, polyamide, polyimide, polyamide-imide, polyethylene, polypropylene, polyvinyl chloride fibers.
  • mainly natural fiber elements ie in particular pulp fibers
  • rayon, cotton, wool, acetate, or tencel fibers can be used.
  • the fiber elements comprise 40 to about 98 wt%, more preferably 60 to 95 wt%, pulp fibers, each based on the total weight of the dry fiber composite material.
  • the pulp fibers used can be obtained by chemical pulping of plant fibers or by using recycled fibers. It can be used both wood fibers, fibers of palm or annual plants such as hay, straw, bagasse, kenaf or bamboo, and mixtures or combinations thereof.
  • any wood pulp ie both softwood pulp and hardwood pulp, may be used.
  • the fiber elements have a length of at least 0.1 mm, preferably in a range between 0.1 mm and 10 mm, more preferably in a range between 0.2 and 6 mm, more preferably in a range between 1 mm and 4 mm , more preferably in a range between 1.1 and 3 mm.
  • the fiber composite material has no fiber elements having a fiber length of more than 6 mm.
  • a mechanical bonding, d. H. z As verkneulen, looping, felting and / or pickling, single or multiple fiber elements to form fiber element aggregates, which fiber element aggregates can lead to blockages prevented.
  • the fiber elements typically have a fiber length below a concentration and fiber material dependent clogging limit.
  • the fibrous elements irrespective of their geometry, are preferably soluble and / or dispersible in water.
  • the fiber elements can have a specific fiber geometry, ie in particular a specific fiber length, which makes it difficult or impossible to connect the fiber elements to one another after disintegration of the fiber composite material.
  • the fiber elements are, as mentioned, typically chosen to be so short, in particular, these typically have a fiber length of less than 6 mm, that neither in dry, wet or even after introduction of the fiber composite material in water decomposed or decomposed state a, z , B. formed by Verknäulen, looping or picking, mechanical connection with each other can form.
  • the fiber elements thus typically have a fiber length below a, optionally fiber element specific, Verzopfungsgrenze above which a, z. B.
  • the clogging limit which can also be referred to as the clogging limit fiber length, is a fiber length dependent on concentration and fiber material, which leads to the formation of mechanically stable fiber-fiber agglomerates or fiber-fiber bonds in the flow field.
  • the structural cohesion or the resulting structural or mechanical properties, d. H. in particular the strength of the fiber composite material in the dry, moist or wet state is typically produced solely by the binder or its setting process.
  • typically only the binder is used, typically by a chemical or physical-chemical fixation, d. H.
  • the formation of hydrogen bonds, fiber element-fiber element bridges or binder films, formed, sufficiently stable connection of the fiber elements respectively between the fiber elements form or guarantee.
  • the fiber elements are for this purpose, at least in sections, in particular completely surrounded by the binder or embedded in this or fixed at contact points and fiber element-fiber element crossing points (gusset region) to each other.
  • the binder is made of a water-soluble, in particular acid group-containing, d. H. at least one acid group having polysaccharide formed or comprises at least one such.
  • the water-solubility of the polysaccharide means in particular that at least 1 g, especially at least 2 g, preferably at least 5 g in 100 g of distilled water at a temperature of 25 ° C and a pressure of 1 atm is soluble.
  • the Z. B. as an aqueous solution and / or as a foam coatable binder typically has a certain capacity for water, which also remains after binding of the binder and leads to renewed contact with water to a swelling (increase in volume) and / or a dissolution of the binder.
  • the binder serves, as mentioned, for the connection of the fiber elements, for. As adhesive or cohesive, with each other. For example, the binder may adhere to the fiber elements after application to the fiber elements and subsequent drying, whereby the fiber elements are adhesively bonded together.
  • the binder may, as mentioned, be connected to the fiber elements via hydrogen bonds.
  • the binder has a viscosity of more than 500 mPas measured on a 2 wt .-% binder-containing aqueous solution or in water at 20 ° C.
  • the binder has a viscosity of (far) more than 500 mPas measured on a 2 wt .-% binder-containing aqueous solution or in water at 20 ° C.
  • the measurement of the viscosity of the binder takes place (e) z. B. by means of a rotational viscometer z.
  • the binder can - again measured on a 2 wt .-% binder-containing aqueous solution or in water at 20 ° C - a viscosity in a range from 501 mPas to 3000 mPas, especially in a range between 520 mPas and 1200 mPas preferred in a range between 550 mPas and 900 mPas.
  • viscosity ranges are - again measured on a 2 wt .-% binder-containing aqueous solution or in water at 20 ° C - z. For example, ranges between 550 mPas and 600 mPas, between 520 and 660 mPas, between 600 and 700 mPas and between 880 and 1150 mPas.
  • the binder can z. B. a viscosity of more than 550 mPas, preferably more than 600 mPas, more preferably more than 700 mPas, more preferably more than more than 800 mPas, more preferably more than more than 900 mPas, more preferably more than more than 1000 mPas, more preferably more than more than 1100 mPas, more preferably more than 1200 mPas, more preferably more than 1300 mPas, more preferably more than 1400 mPas, more preferably more than 1500 mPas, more preferably more than 1600 mPas, further preferably more than 1700 mPas, more preferably more than 1800 mPas, more preferably more than 1900 mPas, more preferably more than 2000 mPas, more preferably more than 2100 mPas, more preferably more than 2200 mPas, even more preferably more than more than 2
  • the binder may have a viscosity of more than 510 mPas, in particular more than 520 mPas, preferably more than 530 mPas, more preferably more than 540 mPas, more preferably more than 550 mPas, more preferably more than 560 mPas, more preferably more than 570 mPas, more preferably more than 580 mPas, more preferably more than 590 mPas, more preferably more than 600 mPas, more preferably more than 610 mPas, more preferably more than 620 mPas, more preferably more than 630 mPas, further preferably more than 640 mPas , more preferably more than 650 mPas, more preferably more than 660 mPas, more preferably more than 670 mPas, more preferably more than 680 mPas, more preferably more than 690 mPa
  • the binder in any case therefore has a comparatively high viscosity.
  • the comparatively high viscosity of the binder is typically linked to a comparatively high molecular weight of the binder or of the binder molecules.
  • the binder typically has a comparatively high molecular weight.
  • the molecular weight of the binder may, for. B. in a range between 50,000 g / mol and 400,000 g / mol, in particular in a range between 100,000 g / mol and 350,000 g / mol, preferably in a range between 150,000 g / mol and 300,000 g / mol.
  • the binder can thus z. B. a molecular weight of more than 50,000 g / mol, in particular more than 75,000 g / mol, in particular more than 100,000 g / mol, in particular more than 125,000 g / mol, in particular more than 150,000 g / mol, in particular more than 175,000 g / mol, in particular more than 200,000 g / mol, in particular more than 225,000 g / mol, in particular more than 250,000 g / mol, in particular more than 275,000 g / mol, in particular more than 300,000 g / mol, in particular more than 325,000 g / mol , in particular more than 350,000 g / mol, in particular more 375,000 g / mol, in particular more than 400,000 g / mol.
  • the comparatively high viscosity of the binder leads to more surprising Leading to particular structural properties, ie in particular to special mechanical properties of the fiber composite material.
  • the composition of the fiber composite material described herein is based on the finding that, surprisingly just higher viscosities of the binder lead to significantly improved structural and mechanical properties of the fiber composite material.
  • the particular structural or mechanical properties of the fiber composite material result in particular in a comparatively high tear strength (dry) or in a comparatively high tear value (dry).
  • the fiber composite material is thus particularly suitable for application or application areas, which at least temporarily include a certain mechanical stress on the fiber composite materials.
  • the binder may have a weight fraction of 0.5-50 wt .-% based on the dry weight or total dry weight of the fiber composite material.
  • the weight percentage of the binder based on the dry weight or total dry weight of the fiber composite material is in a range between 1 and 20 wt .-%, in particular in a range between 2 and 17 wt .-%, preferably in a range between 3 and 15 wt .-%.
  • the fiber composite material may, for. B. a tear value (dry) of at least 30 at least 30 N, preferably at least 35N, more preferably at least 40N, more preferably at least 45N, more preferably at least 50N, more preferably at least 55N, especially at least 60N, more preferably at least 65N, more preferably at least 70N, even more preferably at least 75N , more preferably at least 80N, more preferably at least 90N, more preferably at least 100N.
  • the tear values may in particular be in a range between 45 and 60 N.
  • the tear values are each measured in the dry state in the longitudinal direction.
  • the tear values (dry) can be z. B. be determined according to DIN EN ISO 1924-2.
  • the binder is, as mentioned, a water-soluble polysaccharide or the binder comprises at least one such.
  • the water-soluble polysaccharide typically has at least one acid group-containing or carboxyl group-containing radical.
  • the water-soluble polysaccharide may, for.
  • carboxymethylcellulose CMC
  • carboxymethylstarch CMS
  • carboxyethylcellulose CEC
  • carboxymethylethylcellulose carboxymethylpropylcellulose
  • carboxyethylmethylcellulose carboxyethylethylcellulose
  • carboxymethylhydroxymethylcellulose carboxymethylhydroxyethylcellulose (CMHEC)
  • carboxymethylhydroxypropylcellulose carboxyethylhydroxymethylcellulose, carboxyethylhydroxyethylcellulose and mixtures or combinations thereof.
  • the binder may also be made from water-soluble starch, i. H. in particular from other than the aforementioned water-soluble starches or types, be formed.
  • Suitable commercially available binders are, for. As the sodium carboxymethylcelluloses Rheolon® 30, Rheolon® 30N, Rheolon® 100N or Rheolon® 300, Rheolon® 300N, Rheolon® 500G and Rheolon® 1000G, each z. B. from the company Ugur Seluloz Kimya (Aydin, TR) are available.
  • Other suitable commercially available binders are, for example, the Carboxymethylcelluloses of the varieties Calexis® and Finnfix®, B. from the company CP Kelco Germany GmbH (Grossenbrode, DE) are available.
  • the fiber composite material may also contain at least one dampening solution, ie. H. in particular an organic dampening solution, contain or comprise.
  • the fountain solution may in particular be selected from the group: aliphatic alcohols, aliphatic ethers, aliphatic esters or mixtures of at least one aliphatic alcohol and / or at least one aliphatic ether and / or at least one aliphatic ester. Particularly suitable are ethanol, propanol, ethane-1,2-diol, propane-1,2-diol, propane-1,3-diol, 1,2,3-propane triol and mixtures or combinations.
  • the dampening solution may therefore comprise at least one volatile organic constituent, i. H. z.
  • ethanol and / or at least one low-volatile organic component, in particular a monomeric, oligomeric or polymeric diol or polyol compound, d. H. z.
  • d. H. z For example, propylene glycol.
  • the dampening solution can have a weight fraction of from 1 to 90% by weight, in particular less than 50% by weight, preferably less than 35% by weight, more preferably less than 20% by weight, particularly preferably less than 10% by weight have on the weight or total weight of the fiber composite material.
  • the proportion of fountain solution in a range between 30 and 70 wt .-%, in particular in a range between 35 and 65 wt .-%, preferably in a range between 40 and 60 wt .-%.
  • the dampening solution or the fiber composite material in particular if it contains alcoholic ingredients such.
  • alcoholic ingredients such.
  • ethanol and / or propanol in particular mixtures of ethanol and 1-propanol and 2-propanol, having disinfecting properties.
  • the fiber composite material is therefore particularly suitable for use as a disinfecting or cleaning paper.
  • the dampening solution or the fiber composite material can, in particular if it comprises alcoholic constituents, also bactericidal and / or bacteriostatic respectively fungicidal and / or fungiostatic properties. Bactericidal and / or bacteriostatic or fungicidal and / or fungiostatic properties may be useful for certain fields of application of the fiber composite material.
  • the fiber composite material may additionally include an organic amphoteric component.
  • the organic amphoteric component is typically water-soluble.
  • the amphoteric organic component which will be more particularly an amphoteric amine or amine salt as will be seen below, may serve as both the acceptor and donor of protons, i. H. react both as Brönsted acid and as Brönsted base.
  • the amphoteric organic component may in combination with the binder in particular for the formation of a (structure-forming) polysalt and / or a polymeric aggregate, which together with the fountain solution, if present, non-soluble or non-dispersible serve.
  • the organic amphoteric component may be, in particular, an amphoteric amine or amine salt.
  • the organic amphoteric component is not a surfactant, i. H. especially not an amphoteric surfactant.
  • the organic amphoteric component is thus not a surfactant, i. H. in particular, no amine or amine salt-based surfactant.
  • quaternary or long-chain, high molecular amphoteric amines are not suitable as organic amphoteric component, since these act as a plasticizer and / or permanent cationic charge dispersing or disrupting structure and impair or prevent the moisture resistance of the fiber composite material.
  • a suitable amine suitable for use as an amphoteric organic component for the fiber composite material may be a, preferably water-soluble, aminocarboxylic acid, preferably alpha-aminocarboxylic acid, preferably from the group: alanine, arginine, asparagine, aspartic acid, citrulline, cysteine, S-methylcysteine, Cystine, creatine, homocysteine, homoserine, norleucine, 2-aminobutyric acid, 2-amino-3-mercapto-3-methyl-butanoic acid, 3-aminobutyric acid, 2-amino-3,3-dimethylbutanoic acid, 4-aminobutanoic acid, 2-amino-2-methylpropanoic acid, 2-amino-3-cyclohexylpropanoic acid, 3-aminopropanoic acid, 2,3-diaminopropanoic acid, 3-aminohexanoic acid, gamma-carbox
  • short-chain peptides i. H. z.
  • dipeptides tripeptides, up to oligomeric peptides or oligopeptides with up to eight amino acid units, which consist of one or different amino acids, serve as an amphoteric organic component and are thus used.
  • the organic amphoteric component if present, preferably has at least one protonatable and / or protonated amino group and further at least one deprotonatable and / or deprotonated acid group, more preferably carboxyl group.
  • the protonatable and / or protonated amino group is preferably selected from the group: primary amino group, secondary amino group, and combinations thereof.
  • an amphoteric amine is an aminocarboxylic acid and / or a salt and / or a complex thereof, more preferably an alpha-amino acid and / or a salt and / or a complex thereof.
  • a salt of an amphoteric amine is, in particular, a salt of a polyvalent metal cation, useful with a uniform spherical charge distribution on the surface, ie preferably Ca 2+ and / or Zn 2+ .
  • a complex of an amphoteric amine is in particular a complex of a polyvalent metal cation, preferably Ca 2+ and / or Zn 2+ .
  • an amphoteric amine has a first, preferably protonatable and / or protonated, amino group and a first acid group, preferably a carboxyl group, and optionally also a second, preferably protonatable and / or protonated, amino group and / or a second acid group, preferably a carboxyl group
  • an amphoteric amine has no permanently positively charged nitrogen atoms, more preferably no quaternary ammonium group, for example tetraalkylammonium group.
  • the fiber composite material may accordingly comprise, in particular, polyvalent metal cations or, in particular, polyvalent metal cation salts for complex formation with further constituents of the fiber composite material, in particular with the binder and / or with one or more amphoteric organic components, if present.
  • Corresponding metal cations or metal cation salts may in particular be water-structure-forming and / or hygroscopic and / or osmotically active or effective.
  • Examples of corresponding salts may be organic salts based on low molecular weight organic acids or amino acids with polyvalent metal cations, eg. Calcium, magnesium, zinc ions, and / or inorganic metal cation salts, e.g. B. calcium chloride, zinc chloride, generally preferably highly hygroscopic metal cations or metal cation salts, and mixtures of different metal cations or
  • Be metal cation salts The proportion by weight of corresponding metal cations or metal cation salts is in particular between 0.01 and 20 wt .-%, preferably between 0.1 and 10 wt .-%, more preferably between 0.2 and 8 wt .-%, particularly preferably between 0 , 3 and 5 wt .-%.
  • suitable polyvalent metal cations are selected from the group consisting of polyvalent, ie especially bivalent or trivalent, ions of the transition metals, polyvalent ions of the metals of the 3rd and 4th main group of the Periodic Table of the Elements, ions of the alkaline earth metals, ions of the transition metals and mixtures or combinations thereof, is selected.
  • suitable polyvalent metal cations may be selected from the group consisting of Al 3+ , Mg 2+ , Co 2+ , Fe 2+ , Fe 3+ , Ca 2+ , Mn 2+ , Ni 2+ , Zn 2+ , and mixtures or combinations thereof, more preferably Ca 2+ , Zn 2+ and mixtures or combinations thereof, are selected.
  • Suitable metal cations may be, for example, in the form of water-soluble salts and / or complexes of the corresponding metal cations, preferably as bicarbonate, chloride, acetate, lactate, tartrate, fumarate, carboxylate and / or complex of one of the abovementioned aminocarboxylic acids or a mixture thereof, preferably as chloride , Carboxylate and / or complex of one of the abovementioned aminocarboxylic acids or a mixture thereof, of the corresponding metal cations, into which, preferably aqueous, solution, preferably lotion, is introduced.
  • Suitable amphoteric amines are preferably selected from the group consisting of aminocarboxylic acids which may be unsubstituted or substituted, salts thereof, complexes thereof and mixtures or combinations thereof.
  • Suitable aminocarboxylic acids which may be unsubstituted or substituted are organic compounds which preferably have at least one carboxyl group and at least one amino group.
  • Suitable amphoteric amines are, as mentioned, no surfactants, ie in particular no amphoteric surfactants.
  • Suitable aminocarboxylic acids are preferably selected from the group consisting of alanine, arginine, asparagine, aspartic acid, citrulline, cysteine, S-methylcysteine, cystine, creatine, homocysteine, homoserine, norleucine, 2-aminobutanoic acid, 2-amino-3-mercapto-3- methyl-butanoic acid, 3-aminobutanoic acid, 2-amino-3,3-dimethylbutanoic acid, 4-aminobutanoic acid, 2-amino-2-methylpropanoic acid, 2-amino-3-cyclohexylpropanoic acid, 3-aminopropanoic acid, 2,3-diaminopropanoic acid, Aminohexanoic acid, gamma-carboxyglutamic acid (3-aminopropane-1,1,3-tricarboxylic acid), glutamine, glutamic acid, glycine, his
  • the one amphoteric amine is selected from the group consisting of the aforementioned peptides consisting of one or more of the amino acids listed immediately above.
  • Metal cations preferably polyvalent metal cations, can form salts and / or complexes with one of the abovementioned aminocarboxylic acids.
  • the aforementioned amphoteric amines preferably the aforementioned aminocarboxylic acids, can be used as salts and / or complexes of polyvalent metal cations, preferably Ca.sup.2 + and / or Zn.sup.2 + .
  • a corresponding amphoteric amine preferably the at least one aminocarboxylic acid, which may be unsubstituted or substituted, and / or a salt thereof and / or a complex thereof with an acid group-containing radical, preferably carboxyl group-containing radical, of the binder or Polysaccharides form a polysalt after application to the fiber elements.
  • At least one organic amphoteric component i. H. in particular an amphoteric amine, preferably at least one aminocarboxylic acid, and / or a salt thereof and / or a complex thereof, the control of the wet strength of the fiber composite material, d. H. the decomposability of the fiber composite material in water.
  • the control of the wet strength of the fiber composite material d. H. the decomposability of the fiber composite material in water.
  • salts or complexes or polysalts of organic amphoteric components d. H. in particular aminocarboxylic acids, and metal cations and the moisture resistance of the fiber composite material positively influenced.
  • a corresponding amphoteric amine preferably selected from the group of the foregoing aminocarboxylic acids which may be unsubstituted or substituted, salts thereof, complexes thereof and mixtures or combinations thereof, has a weight proportion in a range between 0.1% by weight.
  • % and 30 wt .-% preferably in a range between 0.5 wt .-% and 20 wt .-%, more preferably in a range between 0.7 wt .-% and 17 wt .-%, more preferably in a range 2 wt .-% between 15 wt .-%, more preferably in a range between 3.3 wt .-% and 13 wt .-%, each based on the weight or total weight of the dry fiber composite material.
  • the fiber composite material contains or comprises at least one amphoteric organic component
  • the Fiber composite material does not contain any (single) amphoteric organic component.
  • the fiber composite material is particularly suitable for use as a disinfecting or cleaning paper.
  • the fiber composite material can therefore be designed in particular as a disinfecting or cleaning paper.
  • the particular wet strength is to be regarded as an indicator effect for the (current) disinfecting or cleaning effect of the fiber composite material, as the disinfecting or cleaning effect of the fiber composite material is reduced at a disintegration of the fiber composite material.
  • the disintegration of the fiber composite material is thus typically associated with a decrease in the disinfecting or cleaning effect of the fiber composite material.
  • the fiber composite material is z. B. also for use as water-dissipative tissue paper, in particular as a wet-strength, water-disintegratable paper cosmetic paper, or water-disintegratable toilet paper; the fiber composite material may thus be formed as a water-dissipative tissue paper, in particular as a water-dissipative cleaning paper or water-dissipative toilet paper.
  • the fiber composite material in addition to the fiber elements and the binder and water, d. H. a water content included.
  • the proportion of water results from the proportions of the fiber elements, the binder and any remaining (optional) components, such as.
  • the dampening solution and the organic amphoteric component the fiber composite material.
  • the proportion of water is typically the remainder, so that the respective constituents of the fiber composite material add up to 100%.
  • the fiber composite material may be formed in one or more layers.
  • the fibrous elements may be provided in the form of a fleece or a shape.
  • the fiber elements to be provided or provided may, for. B. be transferred by carding, wet laying, air laying, spunbonding or meltblowing in a fiber web and be provided as a fiber element web.
  • the fibrous element web may be formed by the airlaid process, also referred to as airlaid, in which the fibrous elements are intimately mixed. The air-laid fiber elements can then be compressed or compacted.
  • step (a1) and / or during steps (a2) and / or (a3) the binder and the organic amphoteric component, if present, are applied as an aqueous solution and / or as a foam in succession, together or concurrently, and subsequently a temperature of greater than 100 ° C, preferably greater than 120 ° C, preferably greater than 150 ° C, solidified. Then the dampening solution, if present, can be applied.
  • step (a3) the binder, the organic amphoteric component, if present, and the fountain solution, if present, are applied.
  • the application of the binder, the optional organic amphoteric component and the optional fountain solution is preferably carried out independently by means of padding, foam application, and / or spraying.
  • the binder, optional organic amphoteric component and optional fountain solution may be applied separately to the same side or to different sides of the fiber elements or fiber composite, respectively.
  • the application of the binder, the optional organic amphoteric component and the optional fountain solution can be carried out simultaneously or non-simultaneously (sequentially), wherein the order of the order is variable.
  • the compression or compression taking place in step (a3) can be carried out by different, simultaneously or staggered, ie, for example, a pre-compression and a compression-compression method, such. As calendering, rolling, embossing done. By compaction or compression of the fiber composite material, the thickness and / or density of the fiber composite material can be adjusted.
  • step (a4) following step (a3) may be a, e.g. B. by embossing the fiber composite material, forming a three-dimensional structuring or surface structuring of the fiber composite material connect. In this way, recesses and / or elevations can be formed in the fiber composite material in a targeted manner.
  • FIGURE shows a schematic representation of a fiber composite material according to an embodiment.
  • the FIGURE shows a schematic representation of a single or multi-layer water-disintegratable fiber composite material 1 according to an embodiment.
  • the fiber composite material 1 shows on the one hand a comparatively high moisture resistance, ie a comparatively high mechanical strength in the wet state, and on the other hand a comparatively low wet strength, ie a comparatively low mechanical strength on contact with water.
  • the comparatively low wet strength allows a rapid and complete decomposition of the fiber composite material 1 in contact with water in individual fiber elements 2.
  • the fiber composite material 1 thus has a sufficiently high mechanical moisture resistance under brief mechanical stress, for example by friction on a substrate. After introduction into water, the fiber composite material 1 exhibits a sufficiently low wet strength or a high decomposability, so that after disposal of the fiber composite material 1 blockages in a sewage system are avoided.
  • the fiber composite material 1 is therefore particularly suitable for use as a water-disintegratable disinfecting or cleaning paper. Also, a use as a water-dissipative tissue paper, water-dilutable cosmetic paper or water-dissipative toilet paper is conceivable.
  • the fiber composite material 1 comprises a number of fiber elements 2, d. H. z. B. pulp fibers, and a surrounding the fibrous elements 2 binder 3, which is formed from or comprises a water-soluble polysaccharide.
  • the water-soluble polysaccharide may be, for. B. carboxymethylcellulose (CMC) act.
  • the binder 3 has a viscosity above 500 mPas measured on a 2 wt .-% binder-containing aqueous solution or in water at 20 ° C.
  • the measurement of the viscosity of the binder 3 is carried out (e) z. B. by means of a rotational viscometer z. B. type Haake Viscotester VT 550 with a cylinder system, measuring cup MV at a speed of 2.55 s -1 .
  • the following table shows examples of possible compositions of the fiber composite material 1, ie in particular different binders # 1 - 4, and associated, each of six measured values averaged tear values (dry): binder Viscosity [mPas] Tear level (dry) [N] #1 880 - 1150 48 # 2 550 - 600 51 # 3 600 - 700 38 # 4 520-660 69
  • Binder # 1 is a Rheolon® 1000 G carboxymethyl cellulose
  • binder C # is Calexis® carboxymethyl cellulose
  • binder # 3 is Rheolon® 500 G carboxymethyl cellulose
  • Binder # 4 is a Finnfix® grade of carboxymethylcellulose
  • the viscosity of binder 3 was measured by means of a Haake Viscotester VT 550 rotary viscometer with a cylinder system, measuring cup MV at a speed of 2.55 s -1 .
  • the tear values were measured in each case on dry test specimens with a width of 50 mm and a length of 100 mm in the longitudinal direction.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Paper (AREA)
  • Sanitary Thin Papers (AREA)
EP18174929.2A 2018-05-29 2018-05-29 Matériau composite fibreux pouvant être dissout dans l'eau Active EP3575466B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
HUE18174929A HUE060920T2 (hu) 2018-05-29 2018-05-29 Vízben oldható szálas kompozit anyag
PL18174929.2T PL3575466T3 (pl) 2018-05-29 2018-05-29 Włóknisty materiał kompozytowy rozpadający się w wodzie
ES18174929T ES2924110T3 (es) 2018-05-29 2018-05-29 Material compuesto de fibra desintegrable en agua
EP18174929.2A EP3575466B1 (fr) 2018-05-29 2018-05-29 Matériau composite fibreux pouvant être dissout dans l'eau
US17/059,339 US20210230806A1 (en) 2018-05-29 2019-05-24 Water-disintegratable fiber composite material
PCT/EP2019/063447 WO2019228920A1 (fr) 2018-05-29 2019-05-24 Matériau composite renforcé par des fibres susceptible de se désagréger dans l'eau
JP2020566705A JP2021525320A (ja) 2018-05-29 2019-05-24 水分解性繊維複合材

Applications Claiming Priority (1)

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EP18174929.2A EP3575466B1 (fr) 2018-05-29 2018-05-29 Matériau composite fibreux pouvant être dissout dans l'eau

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EP3575466B1 EP3575466B1 (fr) 2022-05-11

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EP (1) EP3575466B1 (fr)
JP (1) JP2021525320A (fr)
ES (1) ES2924110T3 (fr)
HU (1) HUE060920T2 (fr)
PL (1) PL3575466T3 (fr)
WO (1) WO2019228920A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486803A (en) * 1946-06-14 1949-11-01 Henry H Frede & Company Inc Absorbent fibrous sheets and method of making same
EP0372388A2 (fr) * 1988-11-30 1990-06-13 Kao Corporation Feuille nettoyante dispersible dans l'eau
EP0945536A2 (fr) * 1998-01-16 1999-09-29 Uni-Charm Corporation Méthode de fabrication d'un matériau non-tissé désintégrable dans l'eau et matériau non-tissé désintégrable dans l'eau
JP3237495B2 (ja) * 1995-12-18 2001-12-10 東洋インキ製造株式会社 水崩壊性シート
WO2013081911A1 (fr) * 2011-11-30 2013-06-06 Dow Global Technologies Llc Feuille fibreuse non tissée désintégrable dans l'eau
US20160051115A1 (en) * 2013-04-15 2016-02-25 Welland Medical Limited Flushable wipes

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US5281306A (en) * 1988-11-30 1994-01-25 Kao Corporation Water-disintegrable cleaning sheet
JP2584508B2 (ja) * 1989-02-28 1997-02-26 花王株式会社 清掃用品用水解紙
JPH1096187A (ja) * 1996-09-24 1998-04-14 Dai Ichi Kogyo Seiyaku Co Ltd 水解紙用カルボキシメチルセルロース塩およびそれを用いた水解紙
JP3296989B2 (ja) * 1997-03-31 2002-07-02 ユニ・チャーム株式会社 水解性シート及びその製造方法
JP2001279596A (ja) * 2000-03-29 2001-10-10 Wakoudou Kk 水解紙及びその製造方法
JP2004316024A (ja) * 2003-04-16 2004-11-11 Kao Corp 水解性清掃物品
JP4219323B2 (ja) * 2004-08-20 2009-02-04 花王株式会社 水解紙の製造方法
CN100560011C (zh) * 2004-08-20 2009-11-18 花王株式会社 膨松水解性清扫物品以及水解纸的制造方法
US20060037724A1 (en) * 2004-08-20 2006-02-23 Kao Corporation Bulky water-disintegratable cleaning article and process of producing water-disintergratable paper
PT3330436T (pt) * 2016-11-30 2018-11-16 Chem&P Gmbh & Co Kg Substrato que contém fibras resistente a humidade com resistência a humidade e resistência em húmido ajustáveis e processo para o seu fabrico

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2486803A (en) * 1946-06-14 1949-11-01 Henry H Frede & Company Inc Absorbent fibrous sheets and method of making same
EP0372388A2 (fr) * 1988-11-30 1990-06-13 Kao Corporation Feuille nettoyante dispersible dans l'eau
JP3237495B2 (ja) * 1995-12-18 2001-12-10 東洋インキ製造株式会社 水崩壊性シート
EP0945536A2 (fr) * 1998-01-16 1999-09-29 Uni-Charm Corporation Méthode de fabrication d'un matériau non-tissé désintégrable dans l'eau et matériau non-tissé désintégrable dans l'eau
WO2013081911A1 (fr) * 2011-11-30 2013-06-06 Dow Global Technologies Llc Feuille fibreuse non tissée désintégrable dans l'eau
US20160051115A1 (en) * 2013-04-15 2016-02-25 Welland Medical Limited Flushable wipes

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HUE060920T2 (hu) 2023-04-28
WO2019228920A1 (fr) 2019-12-05
US20210230806A1 (en) 2021-07-29
ES2924110T3 (es) 2022-10-04
JP2021525320A (ja) 2021-09-24
PL3575466T3 (pl) 2022-12-27
EP3575466B1 (fr) 2022-05-11

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