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
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/23907—Pile or nap type surface or component
  • Y10T428/23986—With coating, impregnation, or bond
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
  • Y10T428/2913—Rod, strand, filament or fiber
  • Y10T428/2933—Coated or with bond, impregnation or core
  • Y10T428/2962—Silane, silicone or siloxane in coating

Definitions

• the present invention relates to a pile stabilizing textile impregnating agent and a method for its production.
• Carpets loaded in this way have pressure points, grooves and an uneven pile (so-called walking streets).
• Furniture upholstery fabrics undergo similar changes in their surface properties, preferably in the most easily accessible and most heavily used areas. The result is a non-uniform appearance of the textile surface.
• silsesquioxane suspensions described there are relatively unstable and are in no way suitable for pole stabilizing equipment.
• this object is achieved in that aqueous methylsilsesquioxane dispersions are used in combination with colloidal silica to finish the textiles.
• the present invention therefore relates to a pile-stabilizing textile impregnating agent containing colloidal suspensions of organosilsesquioxanes and of silica with SiO 2 units.
• the invention further relates to a process for the preparation of such stable, aqueous methylsilsesquioxane / silica dispersions. It is characterized in that silanes of the general formula R-Si (OR ') 3 , together with silanes Si (OR') 4 , in which R is a substituted or unsubstituted hydrocarbon radical having 1 to 7 carbon atoms, the substituents of which are halogen atoms, amino or mercapto - And epoxy groups and up to 95% of the radicals R are methyl and R 'is an alkyl radical having 1 to 4 carbon atoms, to a mixture of water, a buffer substance, a surface-active agent and optionally an organic solvent with agitation and under acid or basic conditions are added.
• silane To achieve a very narrow particle size distribution and a small average particle size of approximately 200 to 500 angstroms, a uniform and slow addition of the amount of silane is required.
• the exact amount of silane that can be added depends on the substituent R and whether an anionic or cationic surfactant is used.
• the simultaneous hydrolysis of the silanes results in copolymers of the silsesquioxanes in which the units can be present in block form or in a random distribution.
• the preferred amount of added silane of the general formula Si (OR ') 4 is 2 to 50 percent, based on the total amount of silanes used, preferably 3 to 20 percent (% by weight).
• the agent according to the invention is composed approximately as follows: wherein about 2 to 9 wt .-% silsesquioxane and about 0.1 - 0.4 wt .-% contains SiO z units.
• the surface-active agents mentioned have the function of stabilizing the particles formed in the colloidal suspensions.
• Suitable anionic surface-active agents are aliphatic and / or aromatic sulfonic acids, for example decyl, dodecyl, cetyl, stearyl, myristyl or oleyl sulfonic acids or their alkali metal salts. If cationic surfactants are used, it is advantageous to use halides and especially chlorides and bromides. Other surfactants, including those of a nonionic and amphoteric nature, can be used in conjunction with the above agents provided they do not interfere with the stability of the colloidal suspension due to their nature or amount.
• the surfactants are used in an amount of about 0.01 to about 15%, based on the amount of silane used.
• the process for the preparation of the colloidal suspensions according to the invention can be carried out at temperatures between room temperature and 80 ° C .; the temperature range between 50 and 70 ° C. is particularly preferred.
• the buffer substances such. B. sodium tetraborate, ammonium bicarbonate, sodium bicarbonate, potassium bicarbonate are used in amounts of 0.05 to 4 wt .-% based on the total mixture.
• the finish is effective on all pile and pile goods made of synthetic, organic and inorganic fibers and natural fibers.
• finishing products can be applied either before, during or after the dyeing of the textile or subsequent further finishing steps, or subsequently after processing as a cover, upholstery or floor covering textile by treatment in the liquor, padding or spraying.
• Another method of applying the colloidal dispersions to the fiber material is to use them together with a cleaning agent, especially if the textile to be treated has been soiled by use or previous processing steps. It is preferable to finish goods that have not been equipped by the manufacturer after wet cleaning by spraying the preparation onto the goods.
• 1.7 g of sodium hydrogen carbonate and 8 g of a cationic surfactant are dissolved in 1700 g of distilled water at room temperature and heated to 70.degree. After this temperature has been reached, 300 g of methyltriethoxysilane and 12 g of tetraethoxysilane are added over the course of 4 hours, the temperature of the reaction mixture being kept at 70.degree. After the addition has ended, the resulting sol is stirred at 70 ° C. for 3 hours and then cooled to room temperature.
• the product obtained is an easily mobile, slightly opaque liquid.
• a tufted fabric with cut pile (100% polyamide) with a pile weight of 350 g / m 2 was, after dyeing, dried with 3% of the preparation according to the invention of Example 2, based on the pile weight, by spraying with the aid of a single-component spraying system equipped and then dried at 120 ° C for 5 minutes on a stenter. The goods were then shaved evenly and the back was coated with a commercially available latex foam.
• Samples were also taken from the goods that had not been treated with the preparation according to the invention (sample A).
• a tufted fabric with cut pile (100% polyamide) with a pile weight of 1200 g / m 2 was, after dyeing, before drying with 3% of the preparation according to the invention of Example 1, based on the pile weight, after the pull-out process on a reel skid after dyeing in last rinse for 15 minutes at 30 ° C. The subsequent drying was carried out on a stenter for 5 minutes at 150 ° C. The goods were then sheared evenly and the back was coated with a commercially available latex foam.
• Samples were taken from this material in accordance with the DIN regulations (sample B). Samples were also taken from the goods that had not been treated with the preparation according to the invention (sample A).
• a tufted fabric with cut pile (100% wool) with a pile weight of 850 g was equipped with 4% of the preparation according to the invention after the pull-out process in the yarn after dyeing in the last rinsing bath (15 '/ 30 ° C.). Drying at 120 ° C. The yarn was then deepened, sheared and coated.
• Pieces of 50 x 30 cm were removed and subjected to a walk test by laying two treated and two untreated samples in a checkered manner in a passenger elevator cabin. In the cabin room, the material is subjected to a more intensive surface stress due to the rotating movements of the people using the elevator than when walking on it. The number of inspections is counted electronically. After every 10,000 inspections, the samples in the fields are exchanged cyclically to ensure an even load. After 30,000 inspections, the samples are removed and visually assessed by 6 different assessors. The surface change of the untreated samples is evaluated (A) compared to the treated samples (B).
• Samples of 30 x 30 cm were taken and laid out on a laboratory table covered with VA steel.
• the load was caused by a steel weight with a support surface coated with polytetrafluoroethylene. (Contact pressure: 78.6 g / cm 2 ; duration of the load: 24 hours).
• Example 6 The mixture was then dried at 150 ° C. for 5 minutes and further treated as indicated in Example 3. The subsequent assessment was carried out as indicated in Example 6:
• the mixture was then dried at 150 ° C. for 5 minutes, shaved evenly, and the back was coated with a commercially available latex sheet foam.
• the samples are first soiled with 10 g of synthetic dirt of the following composition.
• the samples are loaded after the chair roller test, which is described in detail in the DIN regulation 54 324, with a total roller load of 60 kg and a change in the direction of roller rotation after every 50 revolutions.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Detergent Compositions (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6094185

Family Applications (1)

Country Status (8)

Families Citing this family (38)

Family Cites Families (13)

• 1980
  • 1980-02-09 DE DE19803004824 patent/DE3004824A1/de not_active Withdrawn
• 1981
  • 1981-01-22 US US06/227,444 patent/US4351736A/en not_active Expired - Lifetime
  • 1981-01-28 DE DE8181100613T patent/DE3160212D1/de not_active Expired
  • 1981-01-28 NO NO810295A patent/NO156094C/no unknown
  • 1981-01-28 AT AT81100613T patent/ATE3217T1/de not_active IP Right Cessation
  • 1981-01-28 EP EP81100613A patent/EP0036475B1/de not_active Expired
  • 1981-02-06 DK DK52881A patent/DK52881A/da not_active Application Discontinuation
  • 1981-02-06 CA CA000370255A patent/CA1153511A/en not_active Expired
  • 1981-02-07 JP JP1632981A patent/JPS56123480A/ja active Granted

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