Classifications

• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
  • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
  • D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
  • D02G3/326—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic the elastic properties due to the construction rather than to the use of elastic material
• • D—TEXTILES; PAPER
  • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
  • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
  • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
• • 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
  • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
  • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
  • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
  • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
• • 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
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
  • D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
  • D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
• • 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.]
  • Y10T442/30—Woven fabric [i.e., woven strand or strip material]
  • Y10T442/3008—Woven fabric has an elastic quality
  • Y10T442/3024—Including elastic strand or strip

Definitions

• Stretch yarn is generally understood by those skilled in the extile art to be a yarn material having permanentelastic qualities which are not lost through subsequent after-treatment, such as, dyeing, washing, or the like, even without the application of tension.
• stretch yarns even when processed provide garments which cling to the body, following its movements while retaining their original shape even under prolonged tensional and compressive stresses.
• Such stretch yarn commonly consists of synthetic fibers but is also known to be made of cotton.
• Such a stretch yarn made of cotton is prepared by first treating highly overtwisted yarns or twists under tension with humid heat, such as steam, and thereafter dyeing them again under tension.
• the yarns which were used had a normal twist and, in order to test yarns having an extreme twist (so twisted to avoid twisting of the goods during knitting), yarns were used which consisted. of two yarns highly twisted in the same sense or direction and twisted together in the reverse sense.
• the yarn to be treated is given a specific twist structure.
• Such structure principally consists in the doubling of at least two single yarns having the same degree of twist but in opposite directions (8 and Z twist), the doubling being in a greater measure than the twist of the single yarns.
• Twists structured in this manner wherein the single yarn which untwists during the doubling embraces the other single yarn which overtwists during the doubling are known per se and for the most part consist of combinations of synthetic and natural yarns. Such twists are given some elastic stretchability by the overtwisted yarn component and softness in hand or velvet sheen by the embracing yarn. However, these known twists and textile goods made thereof have not been heretofore aftertreated according to the principle of the slack mercerization.
• the present invention primarily comprises a cotton stretch yarn characterized in that it consists of at least two single yarns double with 136-166 turns per meter, each single yarn having the same degree of individual twist but of opposite direction or sense.
• the individual twist is weaker than the degree of double twist, such as 106-122 turns per meter, and the yarn is mercerized in hot 0.05 sodium hydroxide lye.
• the invention also comprises textile goods made of such stretch yarn.
• the invention also comprises a process of producing such a cotton stretch yarn, such process being characterized in that at least two single yarns each being twisted with the same 1 06122 turns per meter but in opposite direction or sense with respect to each other are doubled with a twist measure of 136466 turns per meter, said measure being higher than that of the single yarn twists.
• the produced twist is mercerized in a hot about 0.05% caustic lye comprising a surfactant and afterwards is dried.
• Such mercerization may be given the non-fabricated twist as such but is preferably given the textile goods, e.g. the knitted or woven fabric. In both cases the treatment is performed with the twist in a non-tensioned state.
• the surfactant e.g. a conventional fat sulfonate, pr0- motes the diffusion of the weak lye especially into the overtwisted core yarn whereby a cross-swelling of the fibers and a corresponding longitudinal shrinking of the fabric is caused and fixed by the subsequent drying.
• the finished yarn and the textile goods produced therefrom have a high elastic elongation of 3040'% together with softness in hand and voluminous or bulky appearance.
• caustic lye comprises all substances which react in a mercerizing manner on cotton, viz, causing a shrinking of its fibers.
• a commercially available sodium hydroxide lye of about 41.65% NaOH contents is used and applied in a concentration of 0.1%.
• cotton comprises cotton as such as well as all synthetic and natural substances which by reaction with weak alkaline solutions undergo a swelling which is stable even on subsequent washing or other finishing processes of the fiber substance of the threads,
• the term hot (lye) used for characterizing the invention comprises the area of temperature adjacent to the boiling point of the lye and is inversely reciprocally related to the duration of treatment in the manner known for chemical reactions. According to experience a one hour treatment with a 0.1% sodium hydroxide lye at about provides for the desired stretch yarn effect.
• the textile goods produced therefrom retain the natural qualities of the starting material e.g. cotton, such as heat retention, air permeability, ability to take up moisture, resistance to abrasion, and softness of fibers, and the final textile goods, especially as a shaped garment, have a permanent stretchability of 3040% as a knitted or woven product, and additionally are of permanent shape and resistant to creasing.
• the starting material e.g. cotton
• the final textile goods especially as a shaped garment
• EXAMPLE 1 Width of the hose, mm 500 580 Weight per square meter, g 220 150 Cross elongation, percent 49 40 Longitudinal elongation, percent 131 115
• EXAMPLE 2 1 :1 knitted fabric (rechts-and-rechts-fabric with alternating supra-and-links-wales) produced on a 15-inch circular machine provided with 18 needles per inch; adjustment 90 mm./ 100 links (measured as in Example 1).
• Fabric B made of normal Ne 35/1 cotton yarn.
• a process of producing a stretch yarn of a mercerized cotton type material comprising the steps of forming at least two individual yarns each having substantially the same twist of 106122 turns per meter but of opposite sense with respect to one another, twisting said individual yarns together with a twist of 136-166 turns per meter which is higher than that of the individual yarns, mercerizing the produced twist in a hot caustic lye of about 0.05% comprising a surfactant, and drying.
• caustic lye comprises a 0.01% sodium hydroxide lye having a temperature of about C.
• a process of producing a textile fabric of mercerized cotton stretch yarn comprising the steps of forming at leasttwo individual yarns each having the same twist of 106122 turns per meter but of opposite sense with respect to one another, twisting said individual yarns together with a twist of 136166 turns per meter whcih is higher than that of the individual yarns, forming a body of links from the produced twist, mercerizing the produced body of links in a hot caustic lye of about 0.05% comprising a surfactant, and drying the body of links.
• a process as claimed in claim 4 including the step of forming said fabric into a shaped garment.
• a process as claimed in claim 3 including the step of forming said fabric into a shaped garment.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Treatment Of Fiber Materials (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7073030

Family Applications (1)

Country Status (8)

Cited By (3)

Citations (9)

• 1964
  • 1964-01-15 DE DE19641460232 patent/DE1460232A1/de active Pending
• 1965
  • 1965-09-30 CH CH1350865A patent/CH454347A/de unknown
  • 1965-10-01 US US492281A patent/US3369281A/en not_active Expired - Lifetime
  • 1965-10-06 AT AT903865A patent/AT269700B/de active
  • 1965-10-13 NL NL6513261A patent/NL6513261A/xx unknown
  • 1965-10-13 BE BE670857D patent/BE670857A/xx unknown
  • 1965-10-15 GB GB43753/65A patent/GB1128035A/en not_active Expired
  • 1965-10-15 OA OA52217A patent/OA01838A/fr unknown

Patent Citations (9)

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