Classifications

• • C—CHEMISTRY; METALLURGY
  • C14—SKINS; HIDES; PELTS; LEATHER
  • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
  • C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
• • 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
  • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
  • D06M15/277—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof containing fluorine
• • 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
  • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
  • D06M15/295—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides containing fluorine
• • 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
  • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
  • D06M23/06—Processes in which the treating agent is dispersed in a gas, e.g. aerosols

Definitions

• European application 84113475.2 relates to a novel impregnation spray for leather and textiles, which is primarily intended for the treatment of water-sensitive materials. Due to its new composition, this impregnation spray is physiologically harmless; Damage to the respiratory tract, as was found in previously known compositions, can no longer occur in the impregnation spray according to this application. It is therefore particularly suitable for the end user who treats the leather and textiles himself.
• suitable polyacrylate hydrophobizing agents are homopolymers and copolymers of acrylic acid esters and to name methacrylic acid esters. A large number of different types of acrylic resin are available for this purpose.
• Such polyacrylate hydrophobizing agents can be solvent-free or solvent-containing; they can also be in the form of aqueous dispersions.
• polyacrylate additives for the impregnation spray according to the invention with enhanced hydrophobicity are: solid thermoplastic acrylic resins and thermoplastic acrylate solvent polymers; in particular methyl methac-butyl methacrylate, ethyl methacrylate, and isobutyl methacrylate, which • can each be present as homo- or copolymers.
• Such polymers are commercially available; they can be solvent-free or solvent-based.
• Plexigum N 742 ethyl methacrylate, solid
• Plexigum P 28 i-butyl methacrylate, solid
• Plexigum N 80 ethyl methacrylate, solid
• Plexisol P 550 butyl methacrylate, dissolved in petrol
• Plex 8681 F ethyl methacrylate, solid
• Synthacryl SC 124 methacrylic acid ester copolymer, dissolved in petrol
• Neocryl B 700 i-butyl methacrylate, solid
• Neocryl B 705 i-butyl methacrylate copolymer, solid
• Neocryl B 722 ethyl acrylate / methyl methacrylate, solid
• Neocryl B 731 i-butyl methacrylate copolymer, solid
• Neocryl B 811 methyl methacrylate, solid
• Neocryl V 700-50 i-butyl methacrylate, in gasoline
• thermoplastic acrylic resins and thermoplastic acrylate solvent polymers are particularly suitable for anhydrous impregnation spray formulations.
• aqueous acrylate dispersions as polyacrylate additives in order to increase the hydrophobizing effect.
• aqueous acrylate dispersions are also widely available on the market.
• aqueous acrylate dispersions which can be used according to the invention are: Acrym 02 (acrylic copolymer, aqueous dispersion); Acrym 32 (acrylic copolymer, aqueous dispersion); Acrym 37 (acrylic polymer, aqueous dispersion); Neocryl A 26-.C (acrylic polymer, aqueous dispersion); Neocryl A 401 (acrylic polymer, aqueous dispersion); Neocryl A 349 (acrylic polymer, aqueous dispersion); Neocryl NH 20 (acrylic polymer, aqueous dispersion).
• the amounts of the polyacrylates which are used in the impregnation spray according to the invention as water repellant boosters are relatively small. Amounts of acrylic polymer from 0.1 to 2.0% by weight, based on the active ingredient formulation (A), have proven successful. Amounts of acrylic polymer of 0.2 to 1.5% by weight, based on active ingredient (A), have proven particularly useful.
• the fluorocarbon resins (a) present in the active ingredient (A) are the usual ones, as are offered by several companies for the hydrophobizing finish of leather and textiles.
• hydrophobic fluorocarbon resins which can be diluted with water and / or alcohols, in particular those which have solutions with water and / or alcohols or over a prolonged period form stable emulsions or dispersions.
• stable over a longer period in this area generally means the usual service life of these products, for example up to 3 years.
• FC 208 (approx. 30%); FC 213 (20%); FC 214 (20%); FC 217 (20%); FC 218 (36%); FC 228 (27%); FC 229 (20%); FC 232 (30%); FC 247 (30%); FC 270 (18%); FC 310 (15%); FC 326 (40%); FC 390 (10%); FC 453 (20%); FC 461 (30%); FC 3000 (3%); Foraperle C 305 (25%); Foraperle P 300 (17%); Foraperle T 140 (30%); Foraperle T 145 (25%); Foraperle T 355 (30%); Foraperle T 344 (31%); Foraperle 1190 (28%); Foraperle T 430; Foraperle B 244; Foraperle B 208; Foraperle 333; Xeroderm DH 471763 (100%); Nuva F (approx. 20%
• the (b) solvent or diluent (LA) which is also present is selected from the group: water, preferably deionized water; a water-miscible solvent (LW); and mixtures of water with (LW) .
• a solvent (LW) alone or in a mixture with water
• water-miscible alcohols in particular mono- or polyhydric aliphatic alcohols, have proven successful; these are preferably C 1 -C 6 alcohols, such as ethanol, n-propanol, isopropanol, butanol; also glycols, such as ethylene glycol, but also water-miscible ketones are suitable as solvents (LW), such as acetone.
• the active ingredients (A) may also contain the auxiliaries (c) customary in such impregnation sprays, as described in the second older EP application 85113333.9.
• auxiliaries are initially conventional leather care additives, such as those used to give the impregnation spray a care effect.
• Examples of such care components are: waxes (e.g. natural waxes, modified montan waxes, PE waxes, paraffins); Silicones (e.g.
• dimethylpolysiloxanes amino functional polysiloxanes and the like
• Oils and fats nails, wool fat, mink oil, lanolin
• Dyes dissolved dyes, organic and inorganic pigment fine doughs, inorganic and organic color pigments.
• Such additives for leather care are expediently dispersed or emulsified in water and / or alcohol in the customary manner (since they are usually not themselves water- or alcohol-soluble).
• suitable emulsifiers are: nonionic emulsifiers, such as follyglycol ether of fatty alcohols and / or alkylphenols (eg emulsifier 2106); anionic emulsifiers, such as amine salts of higher fatty acids (eg morpholine stearate); cationic emulsifiers, such as quaternary alkylammonium salts (for example alkyldimethylbenzylammonium chloride).
• Silicone oils are used to improve water repellency, make polishing easier, optimize the flexibility of the care film and give the leather surface a deeper shine.
• Polymethylsiloxanes of low, medium and higher viscosity e.g. Baysilon M 100, M 500, M 10,000
• polymethylsiloxane derivatives with, for example, amino-functional groups e.g. Baysilone OF 4061; silicone oil SLM 50349
• These products are water-insoluble and must be emulsified in water in the usual way for use in aqueous formulations.
• silicone surfactants such as Dow Corning Q 2 3225 C can be used.
• silicone oil emulsions based on polymethylsiloxanes and various derivatives.
• Some silicone emulsion types are listed below by way of example: LE-467 HS Union Carbide, E 22 Wacker-Chemie, AN 2553 Goldschmidt (anionic); 347 Dow Corning, 7274 Dow Corning - amino functional -, E 10 Wacker-Chemie (non-ionic); 929 Dow Corning - amino functional -, VP 1019 Wacker-Chemie - amino functional - (cationic).
• Reactive silicone types can be used for water-free formulations, e.g. Tegosivin LHZ from Goldschmidt.
• lanolins wool fat derivatives
• ethoxylated types e.g. aqualose types from the Golden Dawn Company
• mink oil has been used in care products, which must be made water-miscible with the usual emulsifiers.
• a color refresh is sometimes necessary. This can be achieved by adding water-soluble or water-dispersing dyes or color pigments to the aerosol active ingredients. It must be taken into account that the dyes, together with the care and impregnation agents, have sufficient fastness to dry and wet rubbing. This requirement is met by finely dispersed organic and / or inorganic pigment preparations, e.g. Melustral colors, Helio real colors or Corial real colors. Most of these color pigments are also commercially available as fine dough preparations. Metal complex dyes can also be used to color the above-mentioned impregnating / care active ingredients, e.g. Irgaderm colors, Levaderm colors, Bayderm colors. Alcoholic ingredients can be colored with Sudan colors.
• auxiliary substances (c) which may be present in the active ingredient (A) of the impregnating spray according to the invention are customary corrosion inhibitors (corrosion inhibitors) for tinplate and aluminum cans. Examples include: sodium benzoate; Disodium hydrogen phosphate; Vircopet 20, 30 and 40; Deriphate 151 C; Rewo B 3010; Sarcosyl NL 97; Dehyquart SP.
• fragrance substances (perfumes) of the type customary in this field may also be present in the active ingredient (A), such as Water, solvent and blowing agent, especially DME-resistant perfume oils.
• Customary anti-foaming agents may also be mentioned as any auxiliary substances (c) present.
• Water-miscible or emulsifiable blowing agents (B) are also explained in the above-mentioned application 84113475.2.
• (B) is advantageously a liquefied propellant, such as, for example, dimethyl ether (DME).
• DME dimethyl ether
• this blowing agent (DME) is present in combination with a solvent system (LA) made of water and / or a water-miscible alcohol, especially ethanol or isopropanol, then a binary or ternary system of DME, water and / / forms in the impregnation spray. or alcohol, which is present in the form of a uniform phase within the known quantity ranges.
• the quantitative ratio of these substances is therefore preferably such that the known mixing gap between DME and water (cf. page 18 of the prospectus of Aerofako BV, Holland, "DME Pure, NEW AEROSOL PROPELLANT ", September 1983) is avoided.
• a liquefied (water-immiscible but) emulsifiable blowing agent such as propane, butane or difluorodichloromethane, can also be present as blowing agent (B).
• compressed, water-miscible blowing agents such as carbon dioxide, may also be present as blowing agents (B); nitrogen and nitrous oxide are further examples of compressed blowing agents.
• the amount of active ingredient (A) in the impregnating spray according to the invention can vary depending on its type and on the type of blowing agent (B) present. In general, 30 to 70% by weight of active ingredient (A) (based on the finished filling formulation) is present. An amount of active ingredient of 40 to 65% by weight has proven particularly useful.
• blowing agent (B) present can also vary. It is usually 70 to 30% by weight th blowing agent, such as dimethyl ether, propane or butane. Compressed blowing agents, such as carbon dioxide, can also be used; their amount (in the finished filling recipe) is then 0 to 7% by weight, preferably 0 to 5% by weight.
• the amounts of the components (components) (a), (b) and (c) from which the active ingredient (A) is composed can vary within ranges.
• the active ingredient (A) i.e. the active ingredient formulation
• the present invention also relates to the use of the impregnating spray according to the invention described above for the treatment of leather and textiles.
• the impregnating spray according to the invention is applied in the same way as in the known aerosol impregnating agents to the surfaces of leather to be treated, e.g. Shoes, leather clothing, leather furniture, etc., or of textiles, e.g. Clothing, tents, tarpaulins, umbrellas etc. Paper surfaces intended for impregnation can also be treated according to the invention.
• test pieces cut out of the leather were each with 30 g of the test formulations A 1, A 2, A 3; B 1, B 2, B 3 and C 1, C 2, C 3 sprayed and allowed to dry overnight in an air-conditioned room. The water penetration times were then determined in the penetrometer in accordance with DIN 53 338.
• the test formulations and the water penetration times according to DIN 53 338 of the individual tests on different types of leather can be found in the following tables.
• the water penetration times given are mean values from four measurements, with the highest and lowest values being deleted.
• a 1, B 1 and C 1 are fillings that contain only fluorocarbon resins in increasing amounts (dissolved in isopropanol) and (with propane / Butane) are filled in aerosol cans.
• the bottlings A 2, B 2 and C 2 contain only acrylates as impregnating agents; Solvents and propellants are analogous to A 1, B 1 and C 1.
• a 3, B 3 and C 3 list the fillings that contain both FC resin and acrylates - in the same proportions as before - at the same time.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Dispersion Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Treatment And Processing Of Natural Fur Or Leather (AREA)
• Medicinal Preparation (AREA)
• Cosmetics (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Publications (3)

Family

ID=37847171

Family Applications (2)

Family Applications Before (1)

Country Status (3)

Cited By (3)

Families Citing this family (1)

Citations (4)

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• 1984
  • 1984-07-30 DE DE19843428023 patent/DE3428023A1/de active Granted
  • 1984-11-08 EP EP84113475A patent/EP0169935B1/fr not_active Expired
  • 1984-11-13 DK DK539084A patent/DK539084A/da not_active Application Discontinuation
• 1985
  • 1985-07-30 DE DE19853527299 patent/DE3527299A1/de not_active Withdrawn
• 1986
  • 1986-07-30 EP EP86110532A patent/EP0210656B1/fr not_active Expired - Lifetime

Patent Citations (4)

Non-Patent Citations (2)

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