EP4655449A2 - Verfahren zur herstellung eines nachbehandlungsmittels für textilfasern und dessen verwendung - Google Patents
Verfahren zur herstellung eines nachbehandlungsmittels für textilfasern und dessen verwendungInfo
- Publication number
- EP4655449A2 EP4655449A2 EP24700920.2A EP24700920A EP4655449A2 EP 4655449 A2 EP4655449 A2 EP 4655449A2 EP 24700920 A EP24700920 A EP 24700920A EP 4655449 A2 EP4655449 A2 EP 4655449A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- range
- process according
- acid
- post
- polyamide
- Prior art date
- 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.)
- Pending
Links
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
- D06M13/238—Tannins, e.g. gallotannic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
- C08G8/04—Condensation polymers of aldehydes or ketones with phenols only of aldehydes
- C08G8/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ
- C08G8/24—Condensation polymers of aldehydes or ketones with phenols only of aldehydes of formaldehyde, e.g. of formaldehyde formed in situ with mixtures of two or more phenols which are not covered by only one of the groups C08G8/10 - C08G8/20
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/41—Phenol-aldehyde or phenol-ketone resins
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
- D06P1/56—Condensation products or precondensation products prepared with aldehydes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65112—Compounds containing aldehyde or ketone groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65125—Compounds containing ester groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/14—Wool
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/002—Locally enhancing dye affinity of a textile material by chemical means
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/08—After-treatment with organic compounds macromolecular
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
- D06M2101/14—Collagen fibres
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
Definitions
- the invention relates to a process for producing a post-treatment agent for textile fibers using an extract of polyphenols from at least one plant component, the compound obtained by the process and the use thereof.
- Polyamide is a synthetic fiber that is used primarily for the clothing sector, especially underwear, sporting goods or swimwear, as well as in the technical field.
- Forms of packaging include flock, yarn and textile fabrics.
- elastic materials are increasingly used in textile fabrics, e.g. mixtures of polyamide 6.6 and elastane.
- the required fastness to use must be achieved according to the material composition, the finishing process and the choice of dye.
- the fastness of textiles and their colours refers to their durability, including lightfastness.
- the required fastness to use can be wash fastness (e.g. at 50°C), contact fastness (water fastness and/or sweat fastness) and/or fastness to chlorine bath water.
- Polyamide microfibers in blends with elastane in particular require a targeted selection of post-treatment with anionic and/or cationic textile auxiliaries.
- DE 25 07 108 A1 describes a fixing agent for improving the fastness properties of dyeings on polyamide fibers, in particular a condensation product of 4,4-dihydroxydiphenylsulfone, 4,4'-dihydroxydiphenylsulfonic acid and a lower aliphatic aldehyde, such as formaldehyde or acetaldehyde, or its metal salt, wherein the condensation product has an average molecular weight of about 5000 to about 30,000 and a ratio of the carbon atom content to the sulfur atom content of 3.0:1 to 4.8:1.
- syntans ie synthetic tannins.
- Syntan is produced by condensing phenol or bisphenol with formaldehyde.
- the synthesis of the products available on the market in recent decades was generally carried out using acid catalysis (novolak) or basic catalysis (resol).
- DE 699 33 752 T2 discloses phenol novolaks with improved optical properties, in particular phenol-glyoxal condensates, glycidylated derivatives thereof, compositions containing these, and a process for their preparation, wherein glyoxal and phenol are condensed at a temperature of 80 to 100°C in the presence of 1 to 6% of an acid catalyst.
- Novolak and Resol products are generally not water-soluble.
- the basic requirement for textile applications is products that are emulsified or completely soluble in water. Therefore, additional functionalization is necessary to increase solubility through a sulfonation reaction.
- Natural substances such as tannins can be used. Natural substances, particularly tannins, meet the need for phenol-, bisphenol- and formaldehyde-free products and are therefore preferred for improving the fastness to chlorinated bathing water, but they have weaknesses in terms of contact fastness and long-term effectiveness (decreasing effectiveness).
- KR 10 2003 0010802 A discloses the use of about 0.1 to 5.0 wt.% of an inorganic, acidic iron salt, in particular iron(II) sulfate or iron(II) chloride, and then 0.5 to 5.0 wt.% tannic acid or synthetic tannic acid as color fastness improvers for dyed polyamide fibers.
- an inorganic, acidic iron salt in particular iron(II) sulfate or iron(II) chloride
- DE 3 621 410 A1 describes a post-treatment of dyed textile materials made of synthetic polyamides to improve the water fastness of the dyeings by means of (A) 2 to 6% by weight of polyhydroxyphenol or a derivative thereof and subsequently with (B) 0.5 to 3% by weight of a cationic condensation product obtained by reacting (a) piperazine and derivatives of piperazine with (b) bifunctional crosslinkers, such as ethyl halohydrin, in a molar ratio of 1:0.5 to 1.1 and quaternizing the condensation products with benzyl chloride, wherein 0.15-1.5 mol of benzyl chloride is used in the quaternization per equivalent of nitrogen in component (a).
- a cationic condensation product obtained by reacting (a) piperazine and derivatives of piperazine with (b) bifunctional crosslinkers, such as ethyl halohydrin, in a molar ratio of 1:0.5 to 1.1 and quaternizing the condensation products with
- Arbenz and Averous describe the extraction and purification as well as chemical modification of tannins (Arbenz and Averous 2015).
- the chemical modification includes the reaction of the heterocycle, the nucleophilic reaction sites and the hydroxyl groups.
- Arbenz and Averous reveal the reaction of the nucleophilic reaction sites of the tannins with formaldehyde using an OH catalyst for the production of adhesives or foam production.
- WO 2011/001 105 A1 describes a composite material based on fibers and natural resins, a production process and its use, in particular a natural composite comprising a reinforcement based on nonwovens made of natural fibers or fibers obtained from biomass, selected from the group consisting of: plant fibers or cellulose fibers from biomass, such as viscose fibers; and a natural matrix selected from mixtures of tannins and lignin with low molecular weight, reacted with an aldehyde, in a weight proportion between 100/0 and 30/70 of the total weight of the solids, the resin making up between 20 and 50 wt.% of the total weight, the use of 30% sodium hydroxide and the maintenance of a pH between 12 and 12.5 being described for the pre-reaction.
- a natural composite comprising a reinforcement based on nonwovens made of natural fibers or fibers obtained from biomass, selected from the group consisting of: plant fibers or cellulose fibers from biomass, such as viscose fibers; and a natural
- the aim is therefore to provide a post-treatment agent for polyamide fibres which is phenol-, bisphenol- and formaldehyde-free and preferably improves the fastness level after the treatment of polyamide fibres.
- the object is achieved by a method for producing a post-treatment agent for textile fibers comprising the following steps: a) providing an extract of polyphenols from at least one plant component, b) dissolving the polyphenol extract in water, c) acid-catalyzed condensation of the polyphenols with at least one C2 to C10 aldehyde, wherein an organic or inorganic acid with a pKa value below 5 is used as the acid catalyst, wherein the acid catalyst is used in a proportion in the range of 0.01 wt.% to 2 wt.%.
- the process according to the invention enables the provision of a post-treatment agent for textile fibers which is obtained from plant components and is free of bisphenols, phenols and formaldehyde.
- step c) Another advantage is that the acid-catalyzed condensation in step c) is endothermic, which means that the reaction can be easily controlled on an industrial scale. In comparison, the acid-catalyzed condensation of phenol with formaldehyde (novolak) is exothermic.
- An extract is understood to be a substance or a mixture of substances which is separated from a plant component by means of a (solid, liquid or gaseous) extraction agent, preferably by means of a solvent, in particular water and/or an organic solvent.
- the extract contains ingredients of the plant component which have been extracted from the plant component using aqueous and/or organic solvents.
- aqueous and/or organic solvents Various extraction methods are known to those skilled in the art.
- Arbenz and Averous describe the extraction and purification of tannins (Arbenz and Averous 2015).
- the extract is a fluid extract, thick extract and/or dry extract.
- a “dry extract” (also total extract) is an extract which comprises substances of at least one plant component which remain after distillation of the extract.
- the extract of polyphenols is a dry extract.
- the extract of polyphenols has a solids content in the range of 85% to 100% by weight.
- the polyphenols are selected from tannins, lignin, lignin derivatives and/or cardanol.
- lignin derivatives are salts of lignin, preferably sodium lignosulfonate or ammonium lignosulfonate.
- the polyphenols are selected from hydrolyzable tannins, in particular tannic acids.
- tannin acids are understood to mean polyphenolic tannins which have weakly acidic properties, in particular an ester or a mixture of esters of glucose with gallic acid and/or 3-galloylgallic acid (polygalloyl glucose).
- the tannic acid has a number average molecular weight in the range of 1,350 g/mol to 1,450 g/mol.
- the "number average molecular weight” is understood to mean the molecular weight of the polymer weighted according to the relative number fraction that this polymer has.
- the tannic acid has a weight average molecular weight in the range of 1,400 g/mol to 1,500 g/mol.
- the "weight average molecular weight” is understood to mean the molecular weight of the polymer weighted according to the relative mass fraction that this polymer has.
- the extract of polyphenols has a moisture content in the range of 0 wt% to 15 wt%, preferably 5 wt% to 10 wt%.
- plant components are fresh, composted, frozen and/or dried plant material with or without residual moisture.
- the extracts are obtained from the above-ground parts of the plant, such as fruits, leaves, wood and/or bark.
- the extracts are obtained from residues from plant processing.
- the tannins are extracted from tormentil, hops, black tea, green tea, grapes, preferably their fruits; the divi-divi tree, the persimmon tree, the myrobalan, sumac plants, the trillo, the valonea, the pine, the mimosa, the oak, the chestnut or the acacia, preferably bark, wood and/or vegetable galls of oak, chestnut or acacia.
- the extract comprises polyphenols in a content of 10 wt.% to 45 wt.%, preferably in the range of 10 wt.% to 40 wt.%, particularly preferably in the range of 10 wt.% to 35 wt.%
- the polyphenol content can be determined by means of a Fourier transform infrared spectrometer (FTIR) or redox titration, in particular by colorimetric determination of the dry substance, for example using the Folin-Ciocalteu reagent or the Phenolfix test.
- FTIR Fourier transform infrared spectrometer
- redox titration in particular by colorimetric determination of the dry substance, for example using the Folin-Ciocalteu reagent or the Phenolfix test.
- the extract is an aqueous and/or organic extract of the at least one plant component.
- the extraction of the polyphenols comprises comminution and/or homogenization of the at least one plant component.
- the extraction of the polyphenols comprises the following steps: i. an extraction of the at least one plant component with water and or ii. an extraction of the aqueous extract with a solvent mixture comprising diethyl ether and ethanol, preferably in a ratio of 1:4.
- the extraction of the polyphenols further comprises separating the organic phase and evaporating the solvent.
- the extraction of the polyphenols comprises at least one of filtration and distillation.
- step b) is carried out at a temperature in the range of 20°C to 100°C, preferably in the range of 30°C to 90°C, particularly preferably in the range of 40°C to 80°C.
- step c) an organic or inorganic acid having a pK a value below 5 is used as acid catalyst.
- oxalic acid oxalic acid, monochloroacetic acid or sulfuric acid, preferably oxalic acid, is used as acid catalyst in step c).
- step c) the acid catalyst is used in a proportion in the range from 0.01% by weight to 2% by weight, preferably in the range from 0.1% by weight to 0.5% by weight.
- step c) is carried out at a pH in the range of 0.5 to 3, preferably in the range of 1 to 2.5.
- the condensation takes place with at least one C2 to C10 aldehyde.
- a C2 to C10 aldehyde is understood to mean an aldehyde with at least one aldehyde group, preferably one or two aldehyde groups; which has two to ten carbon atoms in the empirical formula.
- the aldehyde is preferably a C2 to C6 aldehyde.
- the aldehyde in step c) is glyoxal, 5-hydroxymethylfurfural or glutaraldehyde.
- the aldehyde in step c) is glyoxal.
- the stoichiometric ratio of polyphenol to O2- to O10-aldehyde or OH group to aldehyde group is in the range from 1:0.4 to 1:2, i.e. 0.4 to 2 aldehyde groups are used for one OH group.
- the stoichiometric ratio of polyphenol to O2- to O10-aldehyde is in the range from 1:0.4 to 1:0.8, particularly preferably in the range from 1:0.5 to 1:0.7.
- step c) is carried out at a temperature in the range of 90°C to 120°C, preferably in the range of 95°C to 105°C.
- step c) is carried out under an inert gas atmosphere, preferably a nitrogen atmosphere.
- step c) is carried out for a duration in the range of 2.5 hours to 5 hours, preferably about 4 hours.
- the process according to the invention further comprises a finishing of the compound obtained after step c).
- “Finishing” is understood to mean the adjustment of properties for use as a post-treatment agent for textile fibers.
- the method according to the invention comprises adjusting the viscosity after step c).
- glycerin, propylene glycol, 2,3-O-isopropylidene glycerin, butyl glycol and/or butyl diglycol are added to adjust the viscosity.
- glycerin, propylene glycol, 2,3-O-isopropylidene glycerin, butyl glycol and/or butyl diglycol are added to adjust the viscosity in a range from 4% to 12% by weight, preferably in a range from 8% to 10% by weight.
- the process according to the invention comprises adjusting the pH after step c).
- the method according to the invention further comprises the addition of the extract of polyphenols from at least one plant component after step c).
- the amount of extract of polyphenols from at least one plant component added after step c) is in the range of 10 wt.% to 15 wt.%.
- the extract of polyphenols from at least one plant component in the post-treatment agent can reduce and/or prevent yellowing and/or greying of the polyamide, wool and/or silk fibres.
- a further aspect of the invention is a compound obtainable by the process according to the invention.
- the compound obtainable by the process according to the invention has a viscosity in the range of at most 200 mPa s at a temperature of 20°C, preferably a viscosity in the range 100 mPa s to 200 mPa s.
- the viscosity can be determined by means of a rheometer or viscometer, in particular with a rotational viscometer, for example from Brookfield®.
- the compound obtainable by the process according to the invention has a solids content in the range of 26 wt.% to 40 wt.%, preferably 37 wt.% to 39 wt.%.
- the compound obtainable by the process according to the invention has a pH in the range of 2 to 5, preferably 3 to 4.
- Another aspect of the invention is the use of the compound according to the invention as a post-treatment agent and/or reservation agent for textile fibers, preferably polyamide, wool, silk fibers and/or mixtures thereof, in particular a treatment to increase the wash fastness, the chlorine bath water fastness and/or the contact fastness.
- the available post-treatment agent enables an improvement in the wash fastness, the chlorine bath water fastness and/or the contact fastness of polyamide fibres and mixtures thereof, in particular polyamide-polyurethane mixtures, e.g. polyamide-elastane mixtures, as well as an improvement in the fastness of wool and silk fibers.
- the available post-treatment agent also advantageously has acid stability and/or the absence of an "aging" effect.
- the fastness of textiles and their colours refers to the resistance of the textiles to various factors, such as light, skin contact or chlorinated bathing water, including light fastness, contact fastness or chlorinated bathing water fastness.
- the polyamide fiber is a pure fiber or a mixed fiber.
- the polyamide blend or polyamide blend fiber is a polyamide-wool blend fiber, a polyamide-cellulose blend fiber or a polyamide-polyurethane blend fiber, in particular a polyamide-elastane blend fiber.
- the polyamide fiber is selected from polyamide 6.6 or a polyamide 6.6-elastane blend fiber, in particular 90% polyamide 6.6 microfiber/10% elastane or 86% polyamide 6.6/14% elastane.
- the compound according to the invention is used as a post-treatment agent for wool and/or silk fibers which have been dyed with acid or metal complex dyes.
- the fastness of wool and/or silk fibers which have been dyed with acid or metal complex dyes is advantageously improved by the compound according to the invention.
- the compound according to the invention is used as a post-treatment agent for polyamide/wool and/or polyamide/silk blends which have been dyed with acid or metal complex dyes.
- the compound according to the invention is used as a reserving agent for polyamide/wool blends which are subsequently dyed with acid or metal complex dyes.
- the compound according to the invention is used as a reserving agent for polyamide/cellulose mixtures which are subsequently dyed with direct or reactive dyes.
- a fiber component is the application concentration of the compound according to the invention is reserved for dye uptake, i.e. blocked.
- the invention is not limited to the embodiments shown and described, but also includes all embodiments that have the same effect within the meaning of the invention. Furthermore, the invention is not limited to the specifically described combinations of features, but can also be defined by any other combination of certain features of all the individual features disclosed as a whole, provided that the individual features do not exclude each other or a specific combination of individual features is not explicitly excluded.
- the plant components such as plant galls, are first crushed and extracted with water.
- the aqueous extract is then subjected to extraction with a solvent mixture of diethyl ether/ethanol in a ratio of 1:4, the organic phase is separated and the aqueous solution is evaporated to dryness.
- the polyphenol extracts obtained in this way are yellow-brownish solids.
- a polyphenol extract with a tannic acid content in the range of 22 to 35 wt.% is reacted with 1) glyoxal, 2) glutaraldehyde or 3) 5-hydroxymethylfurfural (5-HMF) in a stoichiometric ratio of 1:1, 1:0.8, 1:0.6 or 1:0.4.
- the polyphenol extract is first dissolved in water at 60°C. The reaction takes place under acid catalysis. For this purpose, 0.25 wt.% oxalic acid is added to the reaction mixture. The aldehyde is then added for condensation. Condensation takes place at a temperature of around 100°C over a period of 4 hours. The reaction mixture is then cooled to room temperature and around 4 to 6 wt.% glycerol and 1,2-propylene glycol are added to prepare the mixture and adjust the viscosity.
- Example 2 A polyphenol extract with a tannic acid content in the range of 10 to 15 wt. % is reacted with 1) glyoxal, 2) glutaraldehyde or 3) 5-HMF in a stoichiometric ratio of 1:1, 1:0.8, 1:0.6 or 1:0.4.
- the polyphenol extract is first dissolved in water at 60°C. The reaction takes place under acid catalysis. For this purpose, 0.25 wt. % oxalic acid is added to the reaction mixture. The aldehyde is then added for condensation. Condensation takes place at a temperature of around 100°C over a period of 4 hours. After cooling to 60°C, a further amount of polyphenol extract (10 to 15 wt.
- a polyphenol extract with a tannic acid content in the range of 10 to 15 wt.% is mixed with sodium lignosulfonate or alternatively ammonium lignosulfonate in a stoichiometric ratio of 1:1 and reacted in a ratio of 1:1, 1:0.8, 1:0.6 or 1:0.4 with 1) glyoxal, 2) glutaraldehyde or 3) 5-HMF.
- the polyphenol extract and the lignin derivative are first dissolved in water at 60°C. The reaction takes place under acid catalysis. For this purpose, 0.25 wt.% oxalic acid is added to the reaction mixture. The aldehyde is then added for condensation.
- Condensation takes place at a temperature of around 120°C over a period of 4 hours.
- the reaction mixture is then cooled to room temperature and approximately 4 to 6 wt.% glycerol and 1,2-propylene glycol are added to the reaction mixture to prepare the mixture and adjust the viscosity.
- Sodium lignosulfonate or alternatively ammonium lignosulfonate with a polyphenol content in the range of 22 to 35 wt.% is reacted in a stoichiometric ratio of 1:1, 1:0.8, 1:0.6 or 1:0.4 with 1) glyoxal, 2) glutaraldehyde or 3) 5-HMF.
- the lignin derivative is first dissolved in water at 60°C. The reaction takes place under acid catalysis. For this purpose, 0.25 wt.% oxalic acid is added to the reaction mixture. The aldehyde is then added for condensation. Condensation takes place at a temperature of around 120°C over a period of 4 hours. The reaction mixture is then cooled to room temperature and around 4 to 6 wt.% glycerol and 1,2-propylene glycol are added to the reaction mixture to prepare the mixture and adjust the viscosity.
- Example 5 A cardanol extract from the cashew nut shell with a polyphenol content in the range of 22 to 35 wt.% is reacted with 1) glyoxal, 2) glutaraldehyde or 3) 5-HMF in a ratio of 1:1, 1:0.8, 1:0.6 or 1:0.4.
- the cardanol extract is dissolved in water at 60°C.
- the reaction takes place under acid catalysis. For this purpose, 0.25 wt.% oxalic acid is added to the reaction mixture.
- the aldehyde is then added for condensation. Condensation takes place at a temperature of around 120°C over a period of 4 hours.
- the reaction mixture is then cooled to room temperature and around 4 to 6 wt.% glycerol and 1,2-propylene glycol are added to the reaction mixture to prepare the mixture and adjust the viscosity.
- Any colour post-treatment leads to an improvement in the wet fastness level of dyeings carried out with acid or metal complex dyes.
- this post-treatment is carried out for medium and dark shades and/or for special requirements, such as fastness to chlorinated bath water.
- the anionic color post-treatment is carried out as standard for polyamide 6.6 (nylon) at 75°C with an average treatment time of 20 minutes in the acidic pH range, in particular a pH value of 4 to 4.5.
- the amount of post-treatment agent varies according to the required fastness level, the strength of the post-treatment agent and the coloring or dye used and is carried out in % using the exhaust process (x% of the post-treatment agent based on the weight of the dyed textile).
- the textile is rinsed well and subjected to further treatment according to the requirements profile (e.g. finishing, a treatment of threads and yarns made of man-made fibres with fatty substances to improve the feel, softness and suppleness).
- finishing a treatment of threads and yarns made of man-made fibres with fatty substances to improve the feel, softness and suppleness.
- Example 1 Improvement of the wash fastness at 60°C of a “Navy” dye (acid dye 3.6% Sellanyl Navy Blue N-5R 180%) on 100% PA 6.6 knitwear 100% polyamide 6.6 (knitted fabric) was dyed with the dye under standard conditions, rinsed and then post-treated in a fresh bath as follows: pH adjustment to pH 4 (with acetic acid 60%), addition of the post-treatment agent in various amounts, treatment at 75°C for 20 min, rinsing at 40°C for 10 min, rinsing at 20°C for 10 min, drying, test of wash fastness at 60°C according to ISO 105-C03, evaluation of the bleeding of the multi-fibre accompanying fabric section polyamide using a grey scale (1 - very poor, heavy bleeding, up to 5 - very good, no bleeding) and calculation of the average value from evaluations by 3 test subjects, whereby the colour change due to the respective post-treatment agent or due to the process was also assessed.
- a “Navy” dye acid dye 3.6% Sellanyl Navy
- Example 2 Improvement of wet fastness at 40°C, in particular wash fastness according to ISO 105-C06 A2S, water fastness difficult according to ISO 105-E01 and Alkaline sweat fastness according to ISO 105-E04 of a “Wild Mallow” dye (1.5 acid dyes 1% Erionyl Red A3B + 0.5% Erionyl Bordeaux A5B) on 90% Polyamide 6.6/ 10% Elastane
- Example 3 Improvement of chlorinated bathing water according to ISO 105-E03 of a “blue” dye (1% acid dye Telon Blue M-GLW) on 86% polyamide 6.6/14% elastane
- Example 4 Investigation of “aging”, ie investigation of the influence of artificial aging of the after-treatment agent on the wash fastness at 60°C of a “navy” dye (acid dye 3.6% Sellanyl Navy Blue N-5R 180%) on 100% PA 6.6 knitwear 100% polyamide 6.6 (knitted fabric) was dyed under standard conditions with the dye acid dye 3.6% Sellanyl Navy Blue N-5R 180%, rinsed and then post-treated in a fresh bath as follows: pH adjustment to pH 4 (with acetic acid 60%), addition of the post-treatment agent 2% each in different artificial ageing stages, ie "fresh" post-treatment sample vs.
- Example 5 Reservation of a 50/50 polyamide/wool blend (equal weight proportions) in a metal complex dye of the colour “Navy” (1% Lanacron Navy S-G 150% metal complex dye)
- the aim of the treatment is to partially block a fiber component in order to achieve various fashion effects (tone-on-tone coloring or bi-color effect).
- the chemical auxiliaries are added to the PA/WO mixture when dyeing, then the post-treatment agent is added with a lead time of 10 minutes before the addition of the dye used and the acidic pH value adjustment (1% Lanacron Navy S-G 150% - metal complex dye).
- the dyeing is carried out at 98°C with a treatment time of 30 minutes, then rinsed with water at 40°C and 20°C.
- Arbenz A Averous L, Chemical modification of tannins to elaborate aromatic biobased macromolecular architectures. Green Chemistry, 2015, 17, 2626-2646.
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| Application Number | Priority Date | Filing Date | Title |
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| DE102023101523.0A DE102023101523A1 (de) | 2023-01-23 | 2023-01-23 | Verfahren zur Herstellung eines Nachbehandlungsmittels für Textilfasern und dessen Verwendung |
| PCT/EP2024/050671 WO2024156528A2 (de) | 2023-01-23 | 2024-01-12 | Verfahren zur herstellung eines nachbehandlungsmittels für textilfasern und dessen verwendung |
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| EP24700920.2A Pending EP4655449A2 (de) | 2023-01-23 | 2024-01-12 | Verfahren zur herstellung eines nachbehandlungsmittels für textilfasern und dessen verwendung |
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| Country | Link |
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| EP (1) | EP4655449A2 (de) |
| JP (1) | JP2026504369A (de) |
| CN (1) | CN121443795A (de) |
| DE (1) | DE102023101523A1 (de) |
| WO (1) | WO2024156528A2 (de) |
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| CN119321051A (zh) * | 2024-10-15 | 2025-01-17 | 广东群豪服饰有限公司 | 一种抗皱透气面料的制备工艺 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1314183A (en) * | 1969-08-07 | 1973-04-18 | Courtaulds Ltd | Synthetic tanning agent |
| CA1052938A (en) | 1974-02-21 | 1979-04-17 | Akio Kobayashi | Fixing agent for improving fastness properties of dyeings on polyamide fibers and preparation thereof |
| DE3621410A1 (de) | 1985-06-28 | 1987-01-02 | Basf Ag | Verfahren zur nachbehandlung von gefaerbten textilen materialien aus synthetischen polyamiden |
| US6106581A (en) * | 1998-06-02 | 2000-08-22 | Ciba Specialty Chemicals Corporation | Ozone stability of dyed and undyed polyamide-containing material |
| US6001950A (en) | 1998-09-22 | 1999-12-14 | Borden Chemical, Inc. | Phenol-novolacs with improved optical properties |
| KR20030010802A (ko) | 2001-07-27 | 2003-02-06 | 주식회사 효성 | 폴리아미드계 섬유의 염색 견뢰도 향상방법 |
| FR2947572B1 (fr) | 2009-07-01 | 2011-08-26 | Univ Nancy 1 Henri Poincare | Materiau composite a base de fibres et de resine naturelles |
-
2023
- 2023-01-23 DE DE102023101523.0A patent/DE102023101523A1/de active Pending
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2024
- 2024-01-12 JP JP2025542383A patent/JP2026504369A/ja active Pending
- 2024-01-12 EP EP24700920.2A patent/EP4655449A2/de active Pending
- 2024-01-12 CN CN202480008705.XA patent/CN121443795A/zh active Pending
- 2024-01-12 WO PCT/EP2024/050671 patent/WO2024156528A2/de not_active Ceased
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| DE102023101523A1 (de) | 2024-07-25 |
| WO2024156528A2 (de) | 2024-08-02 |
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| WO2024156528A3 (de) | 2024-10-24 |
| CN121443795A (zh) | 2026-01-30 |
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