WO2017158182A1 - Tissue paper for hygienic and sanitary use and relative manufacturing process - Google Patents

Tissue paper for hygienic and sanitary use and relative manufacturing process Download PDF

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Publication number
WO2017158182A1
WO2017158182A1 PCT/EP2017/056437 EP2017056437W WO2017158182A1 WO 2017158182 A1 WO2017158182 A1 WO 2017158182A1 EP 2017056437 W EP2017056437 W EP 2017056437W WO 2017158182 A1 WO2017158182 A1 WO 2017158182A1
Authority
WO
WIPO (PCT)
Prior art keywords
hygienic
tissue paper
fibres
animal milk
sanitary use
Prior art date
Application number
PCT/EP2017/056437
Other languages
French (fr)
Inventor
Luca Monacelli
Ferruccio Beniamino GILBERTI
Original Assignee
Gruppo Cordenons S.P.A.
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
Application filed by Gruppo Cordenons S.P.A. filed Critical Gruppo Cordenons S.P.A.
Priority to EP17712447.6A priority Critical patent/EP3417105A1/en
Publication of WO2017158182A1 publication Critical patent/WO2017158182A1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • 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
    • D21H17/22—Proteins
    • 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
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
    • 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
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • 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
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/52—Epoxy resins
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/50—Proteins
    • 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
    • D21H21/16—Sizing or water-repelling agents
    • 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
    • D21H21/18—Reinforcing agents
    • D21H21/20—Wet strength agents
    • 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

Definitions

  • the present invention refers to a tissue paper for hygienic and sanitary use, of the type comprising one or more plies of paper.
  • An aim of the present invention is to provide a tissue paper for hygienic and sanitary use that has a series of tactile and fragrant effects differing from conventional tissue papers, while also exhibiting the necessary capacity to absorb water and other liquids.
  • Another aim of the present invention is to provide a tissue paper for hygienic and sanitary use that offers ductile workability, with particular reference to printing and/or embossing procedures.
  • tissue paper for hygienic and sanitary use characterized in that it comprises a base support comprising at least one moisture-resistant polymer resin and a mixture of fibres comprising cellulose fibres and animal milk protein fibres, said animal milk protein fibres being present in said base support up to a 50% maximum content by weight.
  • the animal milk fibres are treated with an agent that prevents the dissolution thereof.
  • the insolubilization of the milk fibres can take place by enzymatic insolubilization, by administering heat or by means of chemical reactions such as the reaction of the whey with phosphoric acid so as to form insoluble phosphates, or with polycarboxylic acids such as citric acid or butane tetracarboxylic acid.
  • the base support has a surface treatment with a solution based on starch and/or sorbitol and/or glycerol and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene- butadiene polymers.
  • the tissue paper thus conceived creates a particular velvet-like feel of softness accompanied by a particular fragrance of milk.
  • the present invention also concerns a method for manufacturing a tissue paper for hygienic and sanitary use, comprising the steps of:
  • the surface of the base support is treated with a solution based on starch and/or sorbitol and/or glycerol and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene- butadiene polymers.
  • tissue paper for hygienic and sanitary use and the relative manufacturing procedure are defined in the dependent claims.
  • the invention thus provides a tissue paper for hygienic and sanitary use that is velvety, soft and milk-scented, owing to a pulp specially devised for realizing a base support and to a special surface treatment.
  • the production method also makes it possible to mix the fibres obtained from animal milk proteins with conventional paper pulps.
  • the animal milk proteins comprise at least casein.
  • the animal milk proteins are derived from the milk of ruminant artiodactyls.
  • animal milk protein fibres are derived from sheep or bovids, among which cows, goats and yaks.
  • the tissue paper for hygienic and sanitary use of the invention proves to be perfectly printable with high printing quality and makes it possible to achieve particular graphic effects that are difficult to achieve with conventional tissue papers.
  • the tissue paper for hygienic and sanitary use comprises a base support and a surface treatment of the base support.
  • the base support is made up of a mixture of cellulosic fibres and animal milk protein fibres of varying percentages and it contains various polymeric substances, among which at least one polymeric resin, adapted to give the mixture of fibres moisture resistance, and other polymeric substances adapted to give the mixture strength (when dry or wet).
  • the polymeric resin for providing moisture resistance preferably consists of epochlorohydrin and the other polymeric substances for providing strength comprise colophony-based and/or alkyl- ketene-dimer-based and/or acetylsuccinic-acid-based resins, and/or modified starches.
  • the surface treatment consists of a solution based on glycerol and/or sorbitol and/or starch and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene-butadiene polymers.
  • the grammage of the tissue paper ranges between approximately 10 and approximately 400g/m 2 .
  • the tissue paper for hygienic and sanitary use described hereinabove is realized using the following method.
  • an aqueous pulp comprising a mixture of cellulose fibres and animal milk protein fibres, the polymeric substances (resins for providing moisture resistance and strength), among which colophony-based and/or alkyl-ketene-dimer-based and/or acetylsuccinic-acid-based and/or epochlorohydrin-based resins, and/or modified starches.
  • Water is then removed from the pulp so as to form the base support of the paper material having animal milk protein fibres in a percentage varying up to 50% by weight.
  • aqueous solution for example a 10% by weight aqueous solution of starch, and/or 10% by weight of glycerol, and/or 10% by weight of sorbitol and/or 5% by weight of acrylic adhesive, or similar adhesives.
  • the method can comprise a step of mechanically treating the surface, particularly an embossing step.

Abstract

The tissue paper for hygienic and sanitary use comprises a base support comprising at least one moisture-resistant polymer resin and a mixture of fibres comprising cellulose fibres and animal milk protein fibres, said animal milk protein fibres being present in said base support up to a 50% maximum content by weight.

Description

TISSUE PAPER FOR HYGIENIC AND SANITARY USE AND RELATIVE MANUFACTURING PROCESS
DESCRIPTION
The present invention refers to a tissue paper for hygienic and sanitary use, of the type comprising one or more plies of paper.
In the pulp and paper sector, there is a constant search for new types of tissue paper having particular aspects and/or finishes and/or characteristics.
However, it is not uncommon that the achievement of special effects is detrimental to other characteristics of the paper, such as its capacity to absorb water and other liquids.
An aim of the present invention is to provide a tissue paper for hygienic and sanitary use that has a series of tactile and fragrant effects differing from conventional tissue papers, while also exhibiting the necessary capacity to absorb water and other liquids.
Another aim of the present invention is to provide a tissue paper for hygienic and sanitary use that offers ductile workability, with particular reference to printing and/or embossing procedures.
The latter and other aims are achieved according to the present invention by a tissue paper for hygienic and sanitary use, characterized in that it comprises a base support comprising at least one moisture-resistant polymer resin and a mixture of fibres comprising cellulose fibres and animal milk protein fibres, said animal milk protein fibres being present in said base support up to a 50% maximum content by weight.
The animal milk fibres are treated with an agent that prevents the dissolution thereof.
In particular, the insolubilization of the milk fibres can take place by enzymatic insolubilization, by administering heat or by means of chemical reactions such as the reaction of the whey with phosphoric acid so as to form insoluble phosphates, or with polycarboxylic acids such as citric acid or butane tetracarboxylic acid. Advantageously, the base support has a surface treatment with a solution based on starch and/or sorbitol and/or glycerol and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene- butadiene polymers.
The tissue paper thus conceived creates a particular velvet-like feel of softness accompanied by a particular fragrance of milk.
The present invention also concerns a method for manufacturing a tissue paper for hygienic and sanitary use, comprising the steps of:
(a) preparing an aqueous pulp comprising a mixture of fibres containing at least cellulose fibres and animal milk protein fibres, and at least one moisture-resistant polymer resin; and
(b) removing water from the pulp so as to form a base support having animal milk protein fibres in a maximum percentage of 50% by weight.
Advantageously, the surface of the base support is treated with a solution based on starch and/or sorbitol and/or glycerol and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene- butadiene polymers.
Preferred embodiments of the tissue paper for hygienic and sanitary use and the relative manufacturing procedure are defined in the dependent claims.
The invention thus provides a tissue paper for hygienic and sanitary use that is velvety, soft and milk-scented, owing to a pulp specially devised for realizing a base support and to a special surface treatment.
The production method also makes it possible to mix the fibres obtained from animal milk proteins with conventional paper pulps.
In a preferred embodiment of the invention, the animal milk proteins comprise at least casein.
In a preferred embodiment of the invention, the animal milk proteins are derived from the milk of ruminant artiodactyls.
In particular, the animal milk protein fibres are derived from sheep or bovids, among which cows, goats and yaks.
In addition to maintaining its capacity to absorb water and other liquids, the tissue paper for hygienic and sanitary use of the invention proves to be perfectly printable with high printing quality and makes it possible to achieve particular graphic effects that are difficult to achieve with conventional tissue papers.
As stated above, the tissue paper for hygienic and sanitary use according to the invention comprises a base support and a surface treatment of the base support.
The base support is made up of a mixture of cellulosic fibres and animal milk protein fibres of varying percentages and it contains various polymeric substances, among which at least one polymeric resin, adapted to give the mixture of fibres moisture resistance, and other polymeric substances adapted to give the mixture strength (when dry or wet).
The polymeric resin for providing moisture resistance preferably consists of epochlorohydrin and the other polymeric substances for providing strength comprise colophony-based and/or alkyl- ketene-dimer-based and/or acetylsuccinic-acid-based resins, and/or modified starches.
In particular, the surface treatment consists of a solution based on glycerol and/or sorbitol and/or starch and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene-butadiene polymers. The grammage of the tissue paper ranges between approximately 10 and approximately 400g/m2. In accordance with a further aspect of the present invention, the tissue paper for hygienic and sanitary use described hereinabove is realized using the following method.
It is realized using a substantially known paper-forming technique, for example on a continuous machine for manufacturing paper.
In essence, an aqueous pulp is prepared, comprising a mixture of cellulose fibres and animal milk protein fibres, the polymeric substances (resins for providing moisture resistance and strength), among which colophony-based and/or alkyl-ketene-dimer-based and/or acetylsuccinic-acid-based and/or epochlorohydrin-based resins, and/or modified starches.
Water is then removed from the pulp so as to form the base support of the paper material having animal milk protein fibres in a percentage varying up to 50% by weight.
This is followed by a step of surface treatment of one or both faces of the base support with an aqueous solution, for example a 10% by weight aqueous solution of starch, and/or 10% by weight of glycerol, and/or 10% by weight of sorbitol and/or 5% by weight of acrylic adhesive, or similar adhesives.
Lastly, the method can comprise a step of mechanically treating the surface, particularly an embossing step.
Example of a pulp containing animal milk protein fibres for forming the base support:
- 20% by dry weight of animal milk protein fibres
69% by dry weight of cellulosic fibres of various origin and types
2% by dry weight of epochlorohydrin resin
1% by dry weight of a polymeric substance based on potato starch and/or cornflour
1% by dry weight of a polymeric substance based on acrylate-styrene-acrylonitrile ester. 1 % by dry weight of a polyurethane-based polymeric substance
6% by weight of water
It remains understood that modifications and variants that are not beyond the scope of the invention as defined in the appended claims, may be made concerning the tissue paper for hygienic and sanitary use and the relative manufacturing method disclosed and illustrated herein.

Claims

1. A tissue paper for hygienic and sanitary use, characterized in that it comprises a base support comprising at least one moisture-resistant polymer resin and a mixture of fibres comprising cellulose fibres and animal milk protein fibres, said animal milk protein fibres being present in said base support up to a 50% maximum content by weight.
2. The tissue paper for hygienic and sanitary use according to the preceding claim, characterized in that said animal milk proteins comprise at least casein.
3. The tissue paper for hygienic and sanitaiy use according to any one of the preceding claims, characterized in that said animal milk proteins are derived from the milk of ruminant artiodactyls.
4. The tissue paper for hygienic and sanitary use according to any one of the preceding claims, characterized in that said animal milk fibres are insolubilized.
5. The tissue paper for hygienic and sanitary use according to the preceding claim, characterized in that said animal milk fibres are insolubilized by enzymatic insolubilization, by administering heat or by means of chemical reactions among which the reaction of the whey with phosphoric acid so as to form insoluble phosphates, or with polycarboxylic acids, among which citric acid or butane tetracarboxylic acid.
6. The tissue paper for hygienic and sanitary use according to any one of the preceding claims, characterized in that said moisture-resistant polymer resin consists of epochlorohydrin.
7. The tissue paper for hygienic and sanitary use according to any one of the preceding claims, characterized in that it further comprises other polymeric substances comprising one or more colophony-based and/or alkyl-ketene-dimer-based and/or acetylsuccinic-acid-based resins, and/or modified starches.
8. The tissue paper for hygienic and sanitary use according to one of the preceding claims, characterized in that said base support has a surface treatment with a solution based on starch and/or sorbitol and/or glycerol and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene-butadiene polymers.
A method for manufacturing a tissue paper for hygienic and sanitary use, comprising the steps of:
(a) preparing an aqueous pulp comprising a mixture of fibres containing at least cellulose fibres and animal milk protein fibres, and at least one moisture-resistant polymer resin; and
(b) removing water from the pulp so as to form a base support having animal milk protein fibres in a maximum percentage of 50% by weight.
The method according to the preceding claim, characterized in that said animal milk proteins comprise casein and/or are derived from the milk of ruminant artiodactyls, and in that said base support is treated on the surface with a solution based on starch and/or sorbitol and/or glycerol and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene-butadiene polymers.
PCT/EP2017/056437 2016-03-18 2017-03-17 Tissue paper for hygienic and sanitary use and relative manufacturing process WO2017158182A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17712447.6A EP3417105A1 (en) 2016-03-18 2017-03-17 Tissue paper for hygienic and sanitary use and relative manufacturing process

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUA2016A001829A ITUA20161829A1 (en) 2016-03-18 2016-03-18 TISSUE PAPER FOR HYGIENIC AND SANITARY USE AND ITS PROCESS OF PROCESSING
IT102016000028891 2016-03-18

Publications (1)

Publication Number Publication Date
WO2017158182A1 true WO2017158182A1 (en) 2017-09-21

Family

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Family Applications (1)

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PCT/EP2017/056437 WO2017158182A1 (en) 2016-03-18 2017-03-17 Tissue paper for hygienic and sanitary use and relative manufacturing process

Country Status (3)

Country Link
EP (1) EP3417105A1 (en)
IT (1) ITUA20161829A1 (en)
WO (1) WO2017158182A1 (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064387A (en) * 1934-09-28 1936-12-15 Hall Lab Inc Manufacture of casein products
US3242028A (en) * 1961-01-17 1966-03-22 Oxford Paper Co Insolubilized proteinaceous films
US4983257A (en) * 1986-09-05 1991-01-08 Klebstofwerke Collodin Dr. Schultz & Nauth Gmbh Invert size for the internal and surface sizing of paper
US20040144510A1 (en) * 2002-12-23 2004-07-29 Dirk Mauler Soft and strong webs from highly refined cellulosic fibres
EP1566482A1 (en) * 2004-02-19 2005-08-24 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Use of protein hydrolysate derived from keratin-containing material as a paper product additive
EP2450487A1 (en) * 2010-11-05 2012-05-09 Arjowiggins Palalda SAS Biodegradable sterilization wrap
WO2012064798A1 (en) * 2010-11-09 2012-05-18 Paper-Pak Industries Food package
EP2520709A1 (en) * 2011-05-06 2012-11-07 GRUPPO CORDENONS S.p.A. Sand-effect paper material and corresponding manufacturing method
EP2636792A1 (en) * 2012-03-08 2013-09-11 Zachodniopomorski Uniwersytet Technologiczny w Szczecinie Composition for coating cellulosic packaging material, a method of preparing composition for coating cellulosic packaging material, heat-insulating packaging material, in particular for food products, and a method for preparing heat-insulating material, in particular for food products

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064387A (en) * 1934-09-28 1936-12-15 Hall Lab Inc Manufacture of casein products
US3242028A (en) * 1961-01-17 1966-03-22 Oxford Paper Co Insolubilized proteinaceous films
US4983257A (en) * 1986-09-05 1991-01-08 Klebstofwerke Collodin Dr. Schultz & Nauth Gmbh Invert size for the internal and surface sizing of paper
US20040144510A1 (en) * 2002-12-23 2004-07-29 Dirk Mauler Soft and strong webs from highly refined cellulosic fibres
EP1566482A1 (en) * 2004-02-19 2005-08-24 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Use of protein hydrolysate derived from keratin-containing material as a paper product additive
EP2450487A1 (en) * 2010-11-05 2012-05-09 Arjowiggins Palalda SAS Biodegradable sterilization wrap
WO2012064798A1 (en) * 2010-11-09 2012-05-18 Paper-Pak Industries Food package
EP2520709A1 (en) * 2011-05-06 2012-11-07 GRUPPO CORDENONS S.p.A. Sand-effect paper material and corresponding manufacturing method
EP2636792A1 (en) * 2012-03-08 2013-09-11 Zachodniopomorski Uniwersytet Technologiczny w Szczecinie Composition for coating cellulosic packaging material, a method of preparing composition for coating cellulosic packaging material, heat-insulating packaging material, in particular for food products, and a method for preparing heat-insulating material, in particular for food products

Also Published As

Publication number Publication date
ITUA20161829A1 (en) 2017-09-18
EP3417105A1 (en) 2018-12-26

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