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
  • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
  • D06M15/267—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof of unsaturated carboxylic esters having amino or quaternary ammonium groups
• • 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
  • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
  • D06M15/233—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
• • 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
  • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/356—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms
  • D06M15/3566—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of other unsaturated compounds containing nitrogen, sulfur, silicon or phosphorus atoms containing sulfur

Definitions

• This invention relates broadly to the treatment of synthetic fibers to improve their ability to be carded and more particularly, to the treatment of synthetic fibers, e.g., polyamides.
• Fibershereinafter referred .to are meant to apply to any sort of fiber-of arbitrary length, including endless threads.
• Another object of this invention is to block the anion active or cation active groups present on a fiber surface.
• a further object is to improve in particular, the cardability of polyamide fibers.
• the fibers are treated first with a polymeric polyactive substance, the active groups of which are opposite those of the fibers and, secondly, with a monomeric monoactive substance which has but one active group.
• the activity of this group is, of course, opposite that of the polymeric polyactive substance.
• the monomeric monoactive substance is applied to the fiber' material, thus blocking any remaining detrimental active groups and, depending upon the monomeric monoactive substance applied, simultaneously creates a less stiffened fiber with a smooth surface.
• the fibers are first moistened with water,-subsequently dried and finally further heated in a dried condition.
• drying andheating the fibers it is preferred to start the drying at a temperature of about 60 .C., which is subsequently raised to 105 C., and maintained there for a certain period, e.g., 30.minutes or more.
• the fibers Upon treating polyamide fibers in acid medium the fibers act as a polyvalent cation active body having a considerable density of cation active groups.
• the number of cation active groups of the textile fiber is small in comparison to the number of the anion active groups of the applied polymeric, polyanion active treating agent, so that a large number of anion active groups are themselves left unblocked.
• These anion active groups produce a fiber surface which is unfavorable for further textile treatment.
• the second treatment is made with a monomeric monocation active substance.
• the remaining anion active groups 'ofthepre-treated textile fibers are thereby blocked so that jactive substances polyvinyl compounds which may be produced from monomers of the general formula
• R R R and R it is possible to produce a great many variants many of which are Polymethylacrylic acid, polystyrene sulfona-te, copolymers from styrene and maleic acid and the like may be cited for example.
• the pH of the first treating bath of the polymeric polyanion active substances should be maintained between 1 and 4 and preferably between 3 and'4.
• the concentration of the first bath is preferably from 0:5 to 2% by weight, calculated as dry matter.
• the treating temperature may be maintained between to 95 C., although preferably between and C. It also should be kept in mind that the fibers should not be dried after the first treatment but centrifuged whereupon the fibers which are still wet are treated with the second bath containing the monomeric monocation active substance.
• an inorganic and/or an organic monomeric monocation active substance may be used.
• inorganic monomeric monocation active substances are employed, e.g., aluminum sulfate, magnesium sulfate, and the like if the fiber is smooth and not curled or slightly curled, i.e., has the necessary smoothbecomes too high.
• an length is of at least twelve carbon atoms. Beyond twenty carbon atoms in the chain length the fiber smoothness Organic monomeric monocation active substances containing a long chain radical having preferably from twelve to eighteen carbon atoms may be employed with advantage in the second treatment step. stances belong chiefly to the class known as cation active synthetic soaps.
• organic monomeric monocation active substances which may be employed are the alkyl ammonium compounds, such as alkyl trimethyl ammonium compounds or salts thereof and alkyl pyridinium salts, e.g., dodecyl, tetradecyl, hexadecyl and octadecyl trimethyl ammonium chloride and dodecyl, tetradecyl, hexadecyl and octadecyl pyridinium chloride.
• alkyl ammonium compounds such as alkyl trimethyl ammonium compounds or salts thereof and alkyl pyridinium salts, e.g., dodecyl, tetradecyl, hexadecyl and octadecyl trimethyl ammonium chloride and dodecyl, tetradecyl, hexadecyl and octadecyl pyridinium
• quaternary ammonium compounds such as triethyl octadecyloxymethyl ammonium chloride, phenyl benzyl dimethyl ammonium chloride, octadecyloxymethyl pyridinium chlo ride and stearoxy methyl pyridinium chloride have also The corresponding phosphonium, sulphonium and oxonium salts as long as they do not discolor the fibers to an undesirable degree may also be employed.
• chlorides one may also use other halides, preferably the bromides, e.g., dimethyl hexadecyl sulphonium bromide.
• the selection of the monocation active treating agent is adapted to the original roughness or smoothness of the fiber, subject to the smoothness required for the treatment;
• the concentration of the second bath may be roughly equal to that of the first bath, i.e., 0.5 to 2% by weight, calculated as dry matter.
• the treating temperature in the second bath may be room temperature or slightly higher.
• the pH of the bath was maintained at 3.5 while the temperature was kept at 90 C.
• the bath ratio was 1 to 10.
• the treated fibers were then subjected to centrifuging until the fibers still contained about 20% moisture. Thereafter the centn'fuged material in still a moist condition was immersed for a period of five minutes in a solution of 1% by weight of the monomeric monocation active substance.
• the solution contained 95 parts by weight of lauryl trimethyl ammonium chloride and 5 parts by weight of an ethoxylated stearic acid amide converted into the quaternary ammonium compound by dimethyl sulphate.
• the fiber material was again subjected to centrifuging and thereafter dried at C.
• the resultant material was found to be quite smooth and very suitable for carding.
• the material was carded using a normal card clothing at the usual speed with only small quantities of fibers remaining in the card.
• the aforementioned treating agents are to a certain degree firmly connected with the fiber so that they are not removed by a soap solution or by hot water. However, they might be removed by hot salt solutions, such as sodium chloride or sodium sulphate solutions of 1 to 5% or by dilute acids. After the treating agents have exercised the required influence, they may be removed from the fibers at a subsequent treatment stage.
• the present invention is based upon a new process of treating synthetic fiber material and more particularly polyamides with a polymeric polyactive compound and then subsequently with a monomeric monoactive substance.
• a process for the manufacture of polyamide fibers having an improved cardability comprising impregnating the polyamide fibers with an aqueous acidic solution of a water-soluble polyanion-active polyvinyl compound to effect a resultant anionic activity on said fibers, thereafter subjecting the impregnated wet polyamide fibers to the action of an alkyl trimethyl ammonium compound, and

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19829903

Family Applications (1)

Country Status (3)

Citations (4)

• 0
  • BE BE533442D patent/BE533442A/xx unknown
• 1954
  • 1954-11-24 GB GB34104/54A patent/GB772629A/en not_active Expired
• 1955
  • 1955-01-17 US US482393A patent/US2909445A/en not_active Expired - Lifetime

Patent Citations (4)

Also Published As

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