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
  • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
  • D06M23/10—Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents 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
  • D06M15/59—Polyamides; Polyimides

Definitions

• This invention relates to a method for producing a polymer film on the surface of a fibre, the fibre being capable of absorbing polar materials, by a two-stage method, wherein in the first stage of the method a first reaction partner and in the second stage of the method a second reaction partner are applied to form the polymer film on the fibre.
• the polymer film must be produced by a two-stage method, wherein in the first stage of the method a first reaction partner and in the second stage of the method a second reaction partner are applied.
• the fibre is impregnated with a solution of the first reaction partner; the liquor (including the chemicals which constitute the first reaction partner) is then present in all the interstices of the fibre formation. If the resultant impregnated material is now dipped in a bath containing the second reaction partner, the polymer film is formed everywhere the first reaction partner is present, i.e., especially in the interstices and at the intersections 2 second reaction partner reacts with itself and thus forms the polymer film.
• a catalyst may also be used as the polar first reaction partner which enables the second reaction partner to form the polymer film.
• reaction partners used to form the polymer film can be present in the form of monomers or oligomers.
• a certain time duration is preferably allowed to pass between the first and second 'stages of the process, in order to ensure spreading of the first reaction partner on the fibre surface.
• the polar reaction partner is preferably emulsified while diluted with water.
• the use of the method provided by the invention has particular value in producing a polymer film on worsted tops, wherein with the usual previous methods it is especially difficult to produce a soft feel and to prevent adhesion of the fibres.
• a first polar reaction partner comprising 20g/l of hexamethylenediamine, g/l of water, and lOg/l of emulsifier, is added to a non-polar solvent, Le. 1000 ml of perchlorethylene.
• the liquor take-up amounts to 100 volume-%.
• This emulsion is applied to the fibres in the first stage of the method, before the impregnated fibres are put in the fibre structure.
• the result is an undesirably hard feel and a bonding of the fibres.
• the object of the invention is to provide a method which avoids this disadvantage.
• this object is achieved in that the one polar reaction partner is put in emulsion form into a non-polar solvent, and this emulsion is applied to the fibres in the first stage of the method.
• the polar reaction partner has a tendency to withdraw from the non-polar solvent and to deposit on the fibres capable of absorbing polar substances.
• the emulsion is thus only held mechanically in the interstices of the fibre structure, especially at the intersections; these areas thus become impoverished (in comparison with the fibre surface) as regards the polar first reaction partner. Consequently, during application of the second reaction partner is the second stage of the method, the polymer film can in general only form on the fibre surface, but not in the interstices and at the intersections in the fibre structure. The material is thus given the required soft feel, and adhesion of the fibres is avoided.
• the polar first reaction partner may be a material which forms the polymer film with a second material constituting the second reaction partner.
• the polar first reaction partner a substance which in the presence of a catalyst forming the into a second bath which contains 20g/l of sebacyl acid chloride in 1000 ml of polychlorethylene.
• the polymer 'film which is immediately formed is found only on the fibre surface.
• the worsted tops are not bonded together and have a soft feel.
• the application of the two reaction partners can take place continuously, e.g., by padding, spraying, wetting, slopping, or discontinuously, e.g., by dipping followed by spinning or by treating the fabric in circulation equipment.
• a two-stage method for producing a polymer film on the surface of a fibre capable of absorbing a polar substance comprising the steps of applying hexamethylenediamine as a first reaction, partner to a fibre capable of absorbing a polar material, said first reaction partner emulsified in a non-polar solvent, and thereafter applying sebacyl acid chloride as a second reaction partner to said fibre having said first reaction partner absorbed thereon, and causing said first and second reaction partners to react in situ on said fibre to provide a polymer film.

Landscapes

• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Dispersion Chemistry (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=5836375

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Citations (3)

• 1972
  • 1972-02-18 DE DE2207687A patent/DE2207687C3/de not_active Expired
• 1973
  • 1973-02-05 GB GB551573A patent/GB1390298A/en not_active Expired
  • 1973-02-14 FR FR7305191A patent/FR2172224B1/fr not_active Expired
  • 1973-02-15 JP JP1885473A patent/JPS4892688A/ja active Pending
  • 1973-02-16 IT IT12464/73A patent/IT983343B/it active
  • 1973-02-20 US US333670A patent/US3917886A/en not_active Expired - Lifetime

Patent Citations (3)

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