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
  • 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
  • D06M13/10—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 oxygen
  • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
• • 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
  • D06M13/10—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 oxygen
  • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
  • D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts 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
  • D06M7/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made of other substances with subsequent freeing of the treated goods from the treating medium, e.g. swelling, e.g. polyolefins
• • 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
  • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
  • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions
• • 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
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
  • Y10T428/2913—Rod, strand, filament or fiber
  • Y10T428/2933—Coated or with bond, impregnation or core
  • Y10T428/2964—Artificial fiber or filament
  • Y10T428/2965—Cellulosic

Definitions

• This invention relates to a process for sizing cellulosebased fibres and yarns, such as rayon yarns and, in general, all products obtained from the spinning of viscose solutions with specific sizing agents that are designed to keep the filaments of which the yarns are composed joined together and lubricated in the course of all the various manufacturing steps to which such yarns are subrnitted, i.e. both while being woven, and during the processes preparatory to weavin
• the yarns obtained after the spinning step, and which are designed to be utilized as warp yarns in the subsequent weaving operation are usually treated in a bath containing such sizing agents. After such treatment, the yarn, in the form of a cake (or hank) is properly dried in order to remove the excess of liquid.
• the resulting yarns consists of elemental filaments that are sized, and thus bound together, as an effect of the treatment in the sizing bath.
• the product after having been woven, is submitted to a desizing treatment, to remove the previously applied sizing agent, whereupon it is submitted to all the other finishing treatments required to obtain a product suitable for the practical and industrial purposes for which rayon fabrics, and in general the cellulose base fabrics, are designed.
• Linseed oil is often utilized as a sizing agent for artificial fibres owing to its high lubricating and binding capacity, as well as to its capacity to cover the filaments with films which have an elasticity sufiicient to satisfactorily stand against even the greatest stresses that can be exerted in the course of weaving operation.
• a process for sizing cellulose-based fibres or yarns with linseed oil or other oily sizing agent wherein the fibres or yarns are processed in a single bath containing, in addition to the sizing agent, an anti-oxidising and stabilizing agent consisting of a compound obtained by the combination of a fatty acid with triethanolamine.
• an anti-oxidising and stabilizing agent consisting of a compound obtained by the combination of a fatty acid with triethanolamine.
• the fatty acid contains from 10 to 24 carbon atoms, for example, the anti-oxidising and stabilizing agent may be triethanolamine stearate or oleate.
• the solvent or dispersing agent used in the single bath must be such that both the linseed oil and the stabilizing agent are satisfactorily dissolved or dispersed.
• Solvents suitable for this purpose are already known in the art, and may be selected, for example, from those belonging to the hydrocarbon group (gasoline or petrol, heptane, benzene, toluene and the like), or amongst the chlorinated solvents, such as trichloroethylene.
• the treatment is to be performed with a dispersion of linseed oil and protective agent, then very satisfactory results have been obtained using water as dispersing agent.
• all organic solvents for linseed oil are also solvents for the anti-oxidising agents of the invention however, the solvents should be selected, in each case, in such a manner as to obtain a sufficiently high solubility both of the particular anti-oxidising agent selected, and of the linseed oil.
• the protective agent should be present in the bath in amounts sufiicient to exert an eflicient action in respect of linseed oil.
• the agent is, therefore, preferably added to the bath in amounts in the range of 3-30% and preferably of 10-20% by weight, based on the linseed oil.
• the amine compounds are known as good stabilizing and anti-oxidising agents and therefore, in accordance to the invention, compounds have been selected containing a combined amine and by which the oxidation normally suffered by the linseed oil can be largely prevented, whereby the rayon fibres, or more generally all cellulose-based fibres, are efficiently protected.
• a loss of about 6% in the tensile strength was suffered by the yams processed as above, in respect of the value shown before the treatment in the bath, after having been exposed for 12 days in the so called tropical test stove at 60 C. and 100% of relative humidity; such loss was about equal to that of the same crude, not sized yarn.
• a loss of 24% in the tensile strength was however suffered by the same yarn, processed in a bath consisting of a solution at equal concentration of linseed oil in heptane, without any stabilizing agent, and left under the same conditions in the tropical test stove.
• EXAMPLE 2 Rayon yarn hands (150/60) were treated in a bath consisting of an emulsion of commercial boiled linseed oil (6.2% and triethanolamine oleate (0.6%) in water (93.2%), then centrifuged to a squeezing ratio of about 8%, corresponding to about of drying oil left on the rayon yarn, and finally dried for 24 hours at 60 C.
• a loss of about 7% in the tensile strength was suffered by the yarns, processed as above, in respect of the value shown before the treatment in the bath, after having been exposed for 12 days in the so called tropical test stove at 60 C. and 100% of relative humidity; such loss was about equal to that of some crude, not sized yarn.
• a loss of about 24% in the tensile strength was however suffered by the same yarn, when processed in a bath consisting of an aqueous emulsion of the same percentage of linseed oil, but without any stabilizing agent.
• a process for sizing cellulose-based fibers or yarns which comprises treating the fibers or yarns in a liquid bath consisting essentially of about 62-20% boiled linseed oil and as stabilizing agent, a compound selected from the group consisting of triethanolamine oleate and triethanoline stearate, the weight ratio of linseed oil to stabilizing agent being about 20:4 to 62:06, and removing the excess liquid from the fibers or yarns.
• the bath consists essentially of an aqueous dispersion of the boiled linseed oil and the stabilizing agent.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Artificial Filaments (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=11144621

Family Applications (1)

Country Status (5)

Cited By (1)

Citations (3)

Family Cites Families (1)

• 1966
  • 1966-05-04 GB GB19670/66A patent/GB1107065A/en not_active Expired
  • 1966-05-16 US US550138A patent/US3485663A/en not_active Expired - Lifetime
  • 1966-05-25 BE BE681555A patent/BE681555A/xx unknown
  • 1966-06-01 DE DEP1270A patent/DE1270527B/de active Pending
  • 1966-06-16 NL NL6608357A patent/NL6608357A/xx unknown

Patent Citations (3)

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