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
  • D06P3/82—Textiles which contain different kinds of fibres
  • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
  • D06P3/8209—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing amide groups
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
  • D03D15/208—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based
  • D03D15/217—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads cellulose-based natural from plants, e.g. cotton
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
  • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
  • D03D15/41—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific twist
• • D—TEXTILES; PAPER
  • D03—WEAVING
  • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
  • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
  • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
  • D03D15/49—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads textured; curled; crimped
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
  • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2401/00—Physical properties
  • D10B2401/14—Dyeability
• • D—TEXTILES; PAPER
  • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
  • D10B2503/00—Domestic or personal
  • D10B2503/04—Floor or wall coverings; Carpets

Definitions

• the invention relates to differential-dyeing textiles comprising at least two different polyamide yarns.
• textiles of at least two different yarns of filament-forming synthetic linear polyamides comprises from 10 to 90% by weight of yarn (A) of a polyamide which contains from 1 to 15% by weight of oxyalkylated polyamide.
• Polyamides for the purposes of this invention are synthetic linear polyamides having recurring amide groups in the main chain.
• polyamides modified with oxyalkylated polyamides may be carried out by conventional incorporation of the oxyalkylated polyamide, for example by fine distribution by kneading and homogenizing the melt, into filament-forming synthetic linear polyamides.
• polyamides are polycondensates of lactams such as e-caprolactam, capryllactam, laurolactam or mixtures of these lactams, and the polycondensates of salts of diamines and dicarboxylic acids such as the salts of adipic acid.
• the oxyalkylated polyamides may be prepared by known methods, for example according to Belgian Pat. No. 665,018 by reaction of a 1,2-alkylene oxide such as ethylene oxide and/or 1,2-propylene oxide with a polyamide under superatmospheric pressure at elevated temperature, particularly at temperatures of from 60 to 100 C.
• the reaction may be carried out in the absence or presence of organic solvents and/or reducing or oxidiz- 3,707,344 Patented Dec. 26, 1972 ice ing agents, the alkylene oxides preferably being reacted with the polyamides in the ratio by weight of 0.5:1 to 4:1.
• Suitable polyamides from which the oxyalkylated polyamides (used as antistatic agents) may be prepared are for example polycondensates produced by conventional methods from lactams such as caprolactarn, capryllactam, laurolacta'm or mixtures of these lactams; salts of the type diamine/dicarboxylic acid, such as the salts of adipic acid, suberic acid or sebacic acid and hexamethylenediamine, octamethylenediamine or dodeca-methylenediamine, or copolyamides of the said polyamide-forming starting materials.
• Polyamides which have a low crystallinity such as copolyamides or polyamides which have been obtained by quenching the polymer melt, for example of molten polycaprolactam, are generally particularly suitable.
• Yarns (B) which may be present in the textiles in addition to the yarn which is essential according to the invention are for example yarns of unmodified filament-forming synthetic linear polyamides such as the polycondensates of lactams such as e-caprolactam, capryllactam, laurolactam or mixtures of these lactams and the polycondensates of salts of diamines and dicarboxylic acids such as the salts of adipic acid, suberic acid or sebacic acid and hexamethylenediamine, octamethylenediamine or dodecamethylenedia-mine or cocondensates of the said polyamide-forming starting materials.
• Filament-forming polycaprolactam and polyhexamethylene adiparnide are particularly suitable as the unmodified polyamides. Products having a relative viscosity of from 2.2 to 2.8 have proved to be favorable.
• yarns (C) which may be present in the textiles in addition to the yarn which is essential in accordance with the invention are those of conventional filamentforming synthetic linear polyamides having from 50 to- 130, particularly from 60 to 110, milliequivalents per kilogram of basic groups.
• the production of these polyamides may be carried out for example by using additional monofunctional or bifunctional primary amines such as hexamethylenediamine, in the production of the polyamides from the abovementioned lactams or dicarboxylic acid/diamine salts.
• tertiary amine groups into the polyamides by using polyamide units bearing tertiary amine groups in the production of polyamides from the said lactams or dicarboxylic acid/diamine salts. It is also possible to activate basic groups for dyeing by using in the production of the polyamides in the said manner 0.01 to 0.3% by weight with reference to polyamide of phosphorus in the form of oxyacids of phosphorus or their esters.
• yarns (D) which may be present in the textiles in addition to the yarn which is essential in accordance with this invention are those of polyamides which can be dyed full shades with basic dyes.
• Polyamides which contain from 50 to milliequivalents per kilogram of sulfonate groups in the form of alkali metal salts are suitable for the production of these yarns.
• Production of these polyamides may be carried out for example by using aliphatic, cyeloaliphatic or aromatic polyamide units bearing sulfonate groups in appropriate amounts in the production of the polyamides from the said lactams or dicarboxylic acid/diamine salts.
• the sodium or potassium salt of 5-sulfoisophthalic acid is suitable for the incorporation.
• yarn (A) with yarn (B) (2) yarn (A) with yarn (C) (3) yarn (A) with yarn (D) or (4) yarn (A) with yarn (B) and with yarn (D).
• the polyamide yarns which are essential according to the invention and the polyamide yarns used with them may contain conventional additives such as stabilizers or delustrants such as titanium dioxide. They may be processed smooth or textured into textiles. Examples of suitable texturing methods are gear crimping, stuffing box crimping or false twisting and air-texturing.
• the yarns may be composed of continuous filaments or staple fibers. Yarns and filament bundles are equivalent.
• textiles in this specification includes hosiery, knitwear, woven and nonwoven goods and particularly carpets.
• the amount of the yarn (A) which is essential according to the invention and consists of polyamides having a content of oxyalkylated polyamides is to 90%, advantageously 20 to 80%, by weight and consequently the proportion of other polyamide yarns in the textiles is 90 to 10% and 80 to 20% by weight respectively.
• the ratio of the yarns to one another may vary within these limits.
• the textiles may contain one or more than one kind of yarn in addition to the yarn which is essential according to the invention.
• the ratio of the yarns present in the textiles in addition to the essential yarn may in turn vary Within wide limits.
• the yarn combination chosen is dictated by the desired color pattern and color effects in the textile. For a strong optical effect it may be advantageous for the various yarns to be present in about equal amounts, i.e.
• the amount of each in a combination of two yarns the amount of each may be from 40 to 60% by weight and in a triple combination each may be present in an amount of 20 to 40% by weight, while in a combination of four yarns the amount of each may be from to 30% by weight.
• the distribution of color in the yarn blends in relation to the dyes to be used may easily be ascertained by simple preliminary experiments.
• the distribution of yarns in the textile may be varied markedly in weaving or tufting so that the zones of different coloration may be varied substantially.
• the textiles are preferably piece-dyed.
• acid dyes should be used exclusively.
• the pH has a certain influence on the degree of contrast, the contrast usually being better the higher the pH is.
• a pH of 4 to 9, particularly 7 to 9, has proved to be very favorable.
• dyes are suitable.
• dyes of the anthraquinone or azo series having sulfonic groups are suitable as acid dyes.
• Acid dyes give a higher degree of contrast the higher the number of sulfonic groups present in the molecule. Thus three sulfonic groups produce a more marked contrast than two sulfonic groups or one sulfonic group.
• basic dyes are those having basic tertiary or quaternary nitrogenous groups.
• Piece dyeing may be carried out batchwise or continuously, for example by drawing a length of carpet through the dye-bath.
• the one-bath method of piece dyeing differential-dyeing textiles according to the invention toneon-tone or multicolor effects constitutes an extremely efficient and economical procedure.
• the inventory is minimized.
• a variety of color styling patterns can be prepared because a great many variations are possible in the composition of the yarns, in the arrangement of these yarns in the textiles and in the choice of dyes.
• Textiles according to this invention also have the valuable property of a decreased static electrification, particularly with an increasing content of the yarns which are essential according to the invention.
• EXAMPLE 1 (a) Production of an oxyalkylated polyamide: Ethylene oxide is forced onto 160 parts of powdered polycaprolactam (K value 66, internal viscosity determined according to the formula of H. Fikentscher, Cellulosechemie, 13, 58 (1932), so that a pressure of 5 to 10 atmospheres gauge prevails in the gas space and up to 560 parts of ethylene oxide react. The reaction temperature is to C. The reactor is vented and purged with nitrogen. 720 parts of oxyalkylated polyamide is obtained which has a K value (measured as a 1% solution in concentrated sulfuric acid) of 42.
• K value 66 internal viscosity determined according to the formula of H. Fikentscher, Cellulosechemie, 13, 58 (1932)
• aqueous dye liquor which contains 0.25% of the acid dye Acilan Fast Navy Blue R (with reference to the total weight of yarn) and 0.5 part per liter of an oxyalkylated emulsifying agent and which has been buffered to pH 7.2 with 0.3 part per liter of boric acid and 0.01 part per liter of borax, the yarn blend is dyed at the boil for one hour at a liquor ratio of 50:1 until the liquor is exhausted.
• the dye pickup of the two yarns is determined by extraction of the separated yarns with a 1:1 mixture of pyridine and water in a Soxhlet apparatus. The following percentage distribution of the dye in the yarns is obtained:
• EXAMPLE 2 In accordance with Example 1(b), the yarn is dyed in a dye liquor at a liquor ratio of 50:1 which contains 0.5% of the acid dye Supranol Yellow 0 with reference to the Weight of yarn in all, and 0.5 part per liter of a conventional oxyalkylated emulsifier and which has been buffered to pH 8.0 with 0.4 part per liter of boric acid and 0.19 part per liter of borax.
• the following dye distribution is obtained:
• Example 1(b) Acilan fast Supranol Yarn navy blue R yellow 0 EXAMPLE 5
• EXAMPLE 6 The two yarns specified in Example 1(b) are textured by the stuffing box method and twisted at the rate of 50 turns per meter. By tufting this material on a jute twill material, a piece of carpet is prepared which contains 550 g./m. of pile material. A sample piece of this carpet is dyed on the beck at pH 8 with 0.3% of Brilliant Alizarin Milling Blue FGL and 0.9% of Celliton Yellow 4 GE (with reference to the piece of carpet) at a liquor ratio of 80: 1. The sample exhibits a yellowish green moulin pattern after dyeing.
• a knitted article is made up from equal parts of yarn of:
• polyhexamethylene adipamide having a K value of 71 which contains 1.5% by weight of sodium S-sulfoisophthalate and 0.4% by weight of hexamethylene diamine condensed therein.
• the yarn has a denier of 1100 with 67 individual filaments.
• an aqueous dyebath having a pH of 7.1 which contains 0.5 by weight of the acid dye Acilan Fast Navy Blue R and 0.5% by weight of the basic dye Basacryl Yellow 7 GL (each with reference to the article) a pattern is obtained at a liquor ratio of 50:1 in which yarn (I) is dyed pure blue and yarn (II) is dyed pure yellow.
• a cross dyeing having clearly separated color areas is obtained according to this example.
• EXAMPLE 8 (I) A rnixture of 100 parts of olycaprolactam chips having a K value of 73 is melted and homogenized with 5 parts of the oxyalkylated polyamide chips prepared according to Example 1(a) in a twin shaft extruder.
• Yarns having a drawn denier of 1100/67 are spun from both portions, textured by the edge drawing method and twisted at the rate of 50 turns per meter. By tufting this yarn on a jute twill material a piece of carpet is prepared having 600 g./m. of pile material.
• a pale red/dark red moulin pattern is obtained in which the paler fibers are those prepared according to (I) and the darker fibers are those prepared according to (II).
• a difierential-dyeing textile which can be dyed in piece form and which is composed of at least two diiferent yarns of filament-forming synthetic linear polyamide having amide groups recurring in the main chain wherein from 10 to by weight of the yarns is a yarn A of a polyamide which contains from 3 to 8% by weight of an oxyalkylated polyamide which has been obtained by oxyalkylation with ethylene oxide or 1,2-propylene oxide in a ratio by weight of alkylene oxide: polyamide of about 0.5:1 to 4:1.
• a differential-dyeing textile as claimed in claim 1 which comprises from 10 to 90% by weight of said yarn (A) and 90 to 10% by weight of at least one member of the group consisting of yarn (B) of unmodified polyamide and of yarn (C) of a polyamide having from 50 to milliequivalents per kilogram of basic groups and of yarn (D) of a polyamide having 50 to milliequivalents per kilogram of sulfonate groups.
• a differential-dyeing textile as claimed in claim 1 which comprises from 10 to 90% by weight of said yarn (A) and 90 to 10% by weight of a yarn (B) of an unmodified polyamide.
• a differential-dyeing textile as claimed in claim 1 which comprises 10 to 90% by weight of said yarn (A) and 90 to 10% by weight of a yarn (C) of a polyamide with 50 to 130 millequivalents of basic groups.
• a differential-dyeing textile as claimed in claim 1 which comprises 10 to 90% by weight of said yarn (A) 7 and 90 to 10% by weight of a yarn (D) of a polyamide having to 150 milliequivalents per kilogram of sulfonate groups.
• a differential-dyeing textile as claimed in claim 1 which comprises 10 to by weight of said yarn (A) and 90 to 10% by weight of yarn (C) of a polyamide having 50 to milliequivalents per kilogram of basic groups and of yarn (D) of a polyamide having 50 to milliequivalents per kilogram of sulfonate groups.
• a textile as claimed in claim 1 which has been piecedyed in a single bath to provide a contrasting coloration.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Botany (AREA)
• Coloring (AREA)
• Artificial Filaments (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=5731600

Family Applications (1)

Country Status (7)

Cited By (6)

Families Citing this family (2)

• 1969
  • 1969-04-18 DE DE19691919746 patent/DE1919746A1/de active Pending
• 1970
  • 1970-04-13 US US28081A patent/US3707344A/en not_active Expired - Lifetime
  • 1970-04-14 NL NL7005347A patent/NL7005347A/xx unknown
  • 1970-04-17 GB GB1296778D patent/GB1296778A/en not_active Expired
  • 1970-04-17 FR FR7014028A patent/FR2045419A5/fr not_active Expired
  • 1970-04-17 BE BE749092D patent/BE749092A/xx unknown
  • 1970-04-17 AT AT350170A patent/AT299874B/de active

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