Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
  • D06P3/79—Polyolefins
  • D06P3/792—Polyolefins using basic dyes
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
  • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
  • D01F6/28—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D01F6/30—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising olefins as the major constituent
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
  • D06P3/79—Polyolefins
  • D06P3/791—Polyolefins using acid dyes
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
  • D06P3/79—Polyolefins
  • D06P3/794—Polyolefins using dispersed dyes
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
  • D06P3/79—Polyolefins
  • D06P3/798—Polyolefins using reactive dyes
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
  • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
  • D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
• • 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
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
  • Y10S8/92—Synthetic fiber dyeing
  • Y10S8/928—Polyolefin fiber
• • 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
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/40—Knit fabric [i.e., knit strand or strip material]

Definitions

• the invention relates to a process for the preparation of dyeable from aqueous dye liquor modified polypropylene yarns, the polypropylene yarn obtained by this process and the use of polypropylene yarns for the production of textile fabrics.
• the invention also relates to a process for dyeing the polypropylene yarns or textile fabrics.
• the yarns are spin-dyed by using an extrusion process colored masterbatch granulate, made from a type of polypropylene suitable for fiber formation and a suitable color pigment.
• US-A-3 112 159 is a method for better staining provided by polyolefin fibers.
• a polyolefin mixed with a dicarboxylic acid compound and then spun the mixture.
• the fibers can then be subjected to amination. additionally solid dispersants can be added to this mixture. This will in the extrusion spinning plant only a physical mixture of polyolefin and receive a dye-binding additive and this while maintaining the mixing state processed into filament yarn.
• the present Invention the object of a process for the production of modified polypropylene yarns to provide that by a standard pull-out procedure aqueous dye liquor can be dyed with great depths of color.
• This coloring is supposed to commercially available dyes achieved using conventional dye concentrations become.
• the process should continue to have as few process steps as possible, which leads to cost savings and also be ecologically harmless.
• this object is achieved by a method which is characterized in that is that CR polypropylene suitable for fiber formation with a reactant, which can react with the CR polypropylene, mixed and the mixture obtained in one Extrusion spinning machine is processed into yarn.
• the controlled flow behavior can be different Ways to be achieved, for example by mechanical-thermal stress, ⁇ -radiation, oxidation or by adding peroxides.
• the process consists of processing the powdery polymer during processing or Processing process to add organic peroxides. Free radicals form in the heat, which are preferably hydrogen from the statistically predominant longest chains of hydrogen split off, lead to chain splitting via subsequent reactions and thus a closer one Molecular weight distribution cause, which increases the melt index.
• the easy flowing CR polypropylene thus contains, like any other thermally oxidatively stressed polypropylene type, Hydroxyl groups. These are inevitable in the polypropylene types mentioned generated end or page groups.
• the melt index MFR (melt flow rate, at 2.16 kg / 10 min) of the CR polypropylene used is in the range from about 10 to 1200.
• the melt index is preferably in Range of about 15 to 300.
• a range of about 20 to 120 das is particularly preferred
• the molecular weight of the CR polypropylene used is therefore in the range of approximately 300,000 to 80,000, preferably in the range of about 250,000 to 110,000 and particularly preferably in the range of about 220,000 to 130,000.
• reaction partner it is of crucial importance to select the reaction partner so that it about its functional groups with the CR polypropylene, for example additive or through a substitution reaction.
• This functionality is then used to when dyeing from aqueous dye liquor, the respective dyes, according to their Interaction possibilities, react with the functional groups and thereby deep and create permanent dyeings of the polypropylene yarn.
• Only through this later Incorporation of reactive groups according to the invention are in the polypropylene chain necessary anchor groups are available, which also have connections other than van der Waalssche, for example ionic or covalent binding mechanisms, are able to interact with the respective dyes to a greater extent and thus allow deeper staining.
• CR polypropylene suitable for fiber formation is thus used together with a certain reactant processed together, thereby during the extrusion and the necessary conditions for creating the thread are created, that a dye used in a later dyeing process out of aqueous dye liquor can wind up and is also sufficiently liable.
• Grafting methods that can lead to similar modifications is according to the
• the method according to the invention is not a separate, and therefore costly, processing step necessary. The invention thus not only opens up an inexpensive method, but also access to a previously unattainable market, which of fast changing fashion-related color specifications is determined.
• Another advantage of the invention is that the CR polypropylene is almost independent of its molecular weight and its molecular weight distribution can be used.
• a difunctional carboxylic acid or a corresponding carboxylic acid derivative in particular a carboxylic acid ester, a carboxylic anhydride, a carboxamide, a carboximide, a carboxylic acid halide or a Use carbonitrile.
• a carboxylic acid ester a carboxylic acid ester
• a carboxylic anhydride a carboxamide
• a carboximide a carboxylic acid halide or a Use carbonitrile.
• the reactant is used in an amount of up to about 12% by weight, preferably up to about 3% by weight and in particular up to about 1% by weight. The lower the one used The amount of the reactant is, the cheaper the process is.
• reaction initiator it can accelerate the reaction be advantageous to use a peroxidic additive as a reaction initiator.
• a peroxidic additive as a reaction initiator.
• This will used in conventional amounts, the weight percent concentration of which about Power of ten is lower than that of the reaction partner.
• suitable Reaction initiators have been inorganic and organic peroxides, such as 2,5-dimethyl-2,5-bis- (t.-butylperoxy-hexane).
• the spun filament yarns have residual elongation values in the Magnitude of 200-700%. This results in that for post-stretching drawing ratios of about 1: 6.4 to be applied to a final elongation of about 25% to 1: 2.4 resulting filament stretch titer of preferably about 2.5-3.2 dtex.
• the in the stretched filament yarns achieved tensile strengths are in the range of about 50-60cN / tex and do not differ from yarns made from unmodified polypropylene were manufactured.
• the yarns according to the invention can, under customary conditions, form textile fabrics, preferably processed into knitted fabrics.
• Another object of the present invention is a method for dyeing the invention Polypropylene yarns and textile fabrics.
• the polypropylene yarns of the invention and the fabrics of the invention in a simple manner using a standard extraction process from an aqueous dye liquor be colored. It is possible, using conventional dye concentrations, based on the weight of the goods, to achieve colorations with extremely large depths of color. It can be used almost any type of dye that is capable of its own functional groups with the polypropylene yarns according to the invention or React fabrics. This will not only make one deep but also one permanent coloring achieved.
• Acid, disperse and reactive dyes have also been found to be particularly suitable proven cationic dyes. When using these dyes it is possible to to be observed by the dye manufacturers in the dyeing conditions specified in the color cards.
• dyeing aids such as ionic and nonionic Wetting, dispersing, finishing, antistatic and leveling agents as well as retarders.
• Hostalen PPU 1780F1 CR polypropylene granules for fiber applications with a melt index of MFR 25 (melt flow rate, at 2.16kg / 10min) is mechanically with powdered pyromellitic dianhydride, mixed in the form that the proportion of pyromellitic dianhydride in the mixture is 0.5% by weight. This mixture is fed to the extrusion spinning plant and processed into filament yarns at a melt temperature of 285 ° C.
• Example 1 processed into filament yarns.
• Example 2 Commercial CR polypropylene granules, as described in Example 1, are used with a Masterbatch available from Hoechst AG under the name Hostamont TP AR 504 mixed from polypropylene and maleic anhydride, so that in the mixture Mixing proportion of 1.75% maleic anhydride is included. This mixture is in the Extrusion spinning system processed to filament yarns at 235 ° C.
• Granule mixtures as described in Examples 1 and 2, but provided with each a further additive in a concentration of 0.5 or 1 g / kg of granulate mixture become filament yarns at the temperatures given in the examples mentioned processed.
• the additive mentioned in turn represents a mixture consisting of low molecular weight Polypropylene and 7.5% by weight 2,5-dimethyl-2,5-bis (t-butylperoxy-hexane).
• Granule mixtures as described in Examples 5 to 8, only with a substitute for that there pyromellitic dianhydride used by caprolactam, are at temperatures of 265 ° C processed into filament yarn.
• Knitted fabrics made from filament yarns of Example 4 are dyed in a closed dyeing beaker according to the following program: enter the liquor at 60 ° C. and dwell for 15 minutes, then heat to 125 ° C. within 45 minutes and dye at this temperature for 120 minutes, then dye Cool to 50 ° C for 40 min, take colored samples and aftertreat 60 min at boiling temperature in an open bath with 1-2 g / l of a polyglycol ether derivative and soda.
• dye liquors with a liquor ratio of 1:50 and a pH value between pH2 and pH10 are generally 0.1-5% in cationic dye and contain 5 g / l of an anionic, synergetic surfactant mixture.
• Example 4 CIBasic Blue 5 3% 4 34.66 Example 4 CIBasic Blue 5 3% 6 36.69 Example 4 CIBasic Blue 5 3% 8th 40.30 Example 4 CIBasic Blue 5 3% 10 38.48

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Artificial Filaments (AREA)

Applications Claiming Priority (3)

Publications (2)

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• 1997
  • 1997-10-22 DE DE19746635A patent/DE19746635B4/de not_active Expired - Fee Related
• 1998
  • 1998-10-22 EP EP98958229A patent/EP1025293B1/de not_active Expired - Lifetime
  • 1998-10-22 AT AT98958229T patent/ATE243784T1/de not_active IP Right Cessation
  • 1998-10-22 WO PCT/EP1998/006700 patent/WO1999020817A1/de active IP Right Grant
  • 1998-10-22 US US09/529,929 patent/US6555038B1/en not_active Expired - Fee Related
  • 1998-10-22 JP JP2000517132A patent/JP4188557B2/ja not_active Expired - Fee Related

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