Classifications

• • 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
  • D06M15/327—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof
  • D06M15/333—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated alcohols or esters thereof of vinyl acetate; Polyvinylalcohol
• • 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
• • 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
  • D06M15/53—Polyethers

Definitions

• aqueous emulsion polymers to the textile material to be finished in order to finish textile fabrics.
• auxiliary materials applied as part of the finish serve, inter alia, as fillers, as stiffening agents, anti-slip agents, aggravating agents, agents for improving the seam tear resistance, as anti-nagging agents and the like.
• Corresponding products based on vinyl acetate, dibutyl maleate, vinyl propionate and acrylic acid esters are used in particular as plastic dispersions or emulsions. These agents also serve to vary the handle, a very hard, stiff handle being obtained with polyvinyl acetate dispersions.
• plasticizers can improve the grip properties, this technical solution is subject to considerable restrictions. At the temperatures used in various stages of textile treatment, the plasticizers are at least partially volatile, so that an undesirable change in the handle of the textile material occurs.
• a known plasticizer of this type is, for example, dibutyl phthalate.
• US Pat. No. 3,001,957 discloses latices for textile finishing which contain emulsion polymers of vinyl acetate and / or its copolymers, such as with dibutyl maleate, and cationic protective colloids and emulsifiers.
• emulsion polymers of vinyl acetate and / or its copolymers such as with dibutyl maleate, and cationic protective colloids and emulsifiers.
• dispersions of polyvinyl acetate and / or its copolymers with maleic acid dialkyl esters are described which additionally contain emulsifiers such as polyglycol ethers and optionally protective colloids.
• the invention has for its object to improve the known emulsion homo- and / or copolymers based on vinyl acetate and its copolymers with dibutyl maleate (DBM) so that when used as a textile finishing agent they have significant advantages over comparable homo- or copolymers of the previously known type. In particular, they should give the textile a softer and fuller feel than previously known corresponding emulsion polymers based on vinyl acetate or its copolymers with DBM.
• DBM dibutyl maleate
• the invention is based on the surprising finding that the selection of a very specific protective colloid for the emulsion polymers of the type concerned here provides the desired effects of increased fullness and greater softness in the handle test of appropriately equipped textiles.
• the invention accordingly relates to agents for finishing textiles, in particular textile fabrics based on protective colloids, in addition to small amounts Emulsion polymers of vinyl acetate and / or its copolymers with dibutyl maleate containing customary auxiliaries, the polymer emulsions containing as protective colloid polyethylene glycol which was at least partly present during the emulsion polymerization, characterized in that polyethylene glycol has an average molecular weight of 3,000 to 50,000. The entire amount of the polyethylene glycol is preferably used as a protective colloid even during the emulsion polymerization or copolymerization.
• the polyethylene glycol mentioned as a protective colloid By using the polyethylene glycol mentioned as a protective colloid, it is possible to produce polyvinyl acetate homo- and copolymers which, in the application area of the textile finishing agents concerned here, are distinguished by a significantly softer feel of the treated textile than when the conventional protective colloids are used - for example polyvinyl alcohol and / or cellulose derivatives . It is also of considerable advantage that the dispersions used according to the invention have a very high shear stability, as a result of which the processing of the dispersions in the context of textile finishing is promoted in important work steps.
• the amount of the polyethylene glycols used as the protective colloid is preferably in the range from about 2 to 10% by weight, based on the total weight of the composition.
• the vinyl acetate polymer or copolymer content of the aqueous polymer emulsions is preferably about 40 to 60 percent by weight. If copolymers of vinyl acetate with DBM are used, the DBM content can be up to 50 mol%, based on the sum of vinyl acetate and DBM, with DBM contents in the range from about 5 to 45 mol% being particularly preferred . In general, the higher the DBM content in the copolymer, the greater or greater the softness and fullness of the textile handle.
• the aqueous polymer dispersions also contain the usual auxiliaries in small amounts, with emulsifiers, buffer substances, starters for the polymerization reaction and / or salts being particularly mentioned here.
• the content of these other customary auxiliaries in the emulsion polymers is preferably not above 5% by weight, the content of emulsifiers in particular being in the range of 0.5-3% by weight.
• Particularly suitable emulsifiers are those based on nonionic surfactants, in particular poly-ethylene oxide addition products to hydrocarbon compounds having a reactive hydrogen atom, alkylphenol-EO addition products being preferred emulsifiers.
• a nonionic surfactant that is particularly suitable as an emulsifier is, for example, nonylphenol x 10 EO. But there are also other nonionic surfactants with modified ones EO chain suitable. Particularly useful amounts of the nio-surfactant are in the range of 0.5-2% by weight. Particularly suitable amounts of the polyethylene glycol present as a protective colloid are in the range from approximately 3 to 10% by weight, polyethylene glycols having an average molecular weight of approximately 8,000 to 25,000 being particularly suitable.
• the dispersions are placed undiluted in the trough of a plating device, the lower roller is immersed in the dispersion, the contact pressure of the upper roller is set to 98.07 N / cm [10 kg / cm].
• the shear stability of the dispersion is observed. If after 30 minutes no deposits are visible on the top roller and the bottom roller shows a uniform film without tears, the friction resistance is rated as very good. If there are no changes within the first 10 minutes, the grade will be given well.
• the work was carried out in a ground glass apparatus with 2 l filling content, metal anchor stirrer, intensive cooler and dosing vessels. Most of the water was placed in the reaction vessel and the sodium carbonate, the emulsifier, the defoamer - if used - and the protective colloid were dissolved at 80 to 85 ° C. for 2 hours. The monomers were placed in a 0.5 liter metering funnel. To prepare the initiator solution, potassium persulfate was dissolved in cold water. The solution was placed in a further dosing funnel.
• the reaction was carried out with stirring (140 rpm). The reaction temperature was kept in the range between 80 and 88 ° C. If the reflux was too strong, the monomer addition was temporarily restricted. After the end of the monomer addition, the rest of the initiator solution was added quickly and the end of reflux was awaited. The after-reaction then took place within 30 minutes in the temperature range from 85 to 95 ° C.
• the work was done in a 200 l enamel apparatus with a filling capacity of 120 kg, an infinitely variable impeller stirrer, a 20 l dosing vessel and an ascending reflux condenser. After each batch, the apparatus was rinsed with water and then acetone and dried. 140-200 rpm were set as the stirrer speed.
• the major part of the aqueous phase was placed in the reactor and sodium bicarbonate, emulsifier, defoamer and protective colloid were dissolved in it at 75 ° C. for 2 hours (preliminary solution).
• the intended amount of monomer or the mixture of the monomers was placed in the metering vessel.
• the initiator (potassium persulfate) was dissolved in the remaining water and the solution was added to another metering vessel.
• the reaction temperature was kept in the range of 80 to 88 ° C. If the reflux was too strong, the monomer addition was delayed. After the monomer had been added, the temperature was raised to 85 to 95 ° C. for the after-reaction.
• the dispersions could be filled after cooling to about 35 ° C.
• the emulsion polymer was subsequently mixed with 3% by weight of PEG 12000.
• Comparative example 6.1 contains 3.5% by weight of PEG 12000 added subsequently.
• Comparative example 7.1 contains 3.5% by weight of PEG 12000 added subsequently.
• Comparative Example 8.1 5.0% by weight of PEG 12000 is added to this dispersion.
• the commercially available dispersion contains a vinyl acetate polymer at a solids concentration of 50% by weight of protective colloid: approximately 3.0% by weight of polyvinyl alcohol).
• Comparative example 9.1 contains 5.0% by weight of PEG 12000 added subsequently.
• the grades of the examined samples are summarized in the attached table.
• the shear stability of the materials from Comparative Examples 3 to 5 is poor.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Polymerisation Methods In General (AREA)
• Polymerization Catalysts (AREA)

Applications Claiming Priority (2)

Publications (3)

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• 1986
  • 1986-06-20 DE DE19863620679 patent/DE3620679A1/de not_active Withdrawn
• 1987
  • 1987-04-22 IN IN296/MAS/87A patent/IN169485B/en unknown
  • 1987-06-12 DE DE8787108534T patent/DE3782782D1/de not_active Expired - Fee Related
  • 1987-06-12 EP EP87108534A patent/EP0258551B1/de not_active Expired - Lifetime
  • 1987-06-19 BR BR8703074A patent/BR8703074A/pt unknown
  • 1987-06-20 JP JP62154262A patent/JPS636174A/ja active Pending
  • 1987-06-22 US US07/065,232 patent/US4797964A/en not_active Expired - Fee Related

Non-Patent Citations (1)

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