Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
  • D01H1/11—Spinning by false-twisting
  • D01H1/115—Spinning by false-twisting using pneumatic means
• • 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
  • D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
• • 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
  • 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
  • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
• • 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

Definitions

• the present invention relates to a spinning method and a spun yarn.
• high-speed spinning such as spinning with high-speed ring spinning machines, spinning with high-speed rotor-type open-end spinning machines, and spinning with whirling air spinning machines is advancing to achieve reduced production costs and improved productivity.
• the spinning speed becomes faster in these trends, the amount of fibers passing through the spinning machine per unit time increases in proportion to the speed, so that scum accumulation increases, thereby shortening the cleaning cycle and reducing the operational performance.
• the present invention relates in particular to a spinning method which uses a whirling air spinning machine, and it relates to a spinning method according to which good high-speed spinning performance is assured during operation with scum generation being suppressed during the fiber-spinning operation with the whirling air spinning machine, and to the spun yarn obtained through such a spinning method.
• fiber-processing agents using an alkyl phosphoric ester potassium salt have been used in fiber spinning to achieve favorable spinning performance.
• the following fiber-processing agents are known: 1) two-component families with an alkyl phosphoric ester potassium salt and a phosphate of an alkylaminoether type nonionic surfactant (refer to Japanese Patent Publication Tokkaisho 60-224867 for example), 2) three-component families including an alkyl phosphoric ester potassium salt, a phosphate of an alkylaminoether type nonionic surfactant and a high molecular weight polyoxyethylene compound (refer to Japanese Patent Publication Tokkaisho 57-158297 for example), 3) two-component families with an alkyl phosphoric ester potassium salt and a high molecular weight polyoxyethylene compound (refer to Japanese Patent Publication Tokkaihei 3-174067 for example), and 4) three-component families including an alkyl phosphoric ester potassium salt, a paraffin wax e
• An object of the present invention is to provide a spinning method for spinning with a whirling air spinning machine that assures favorable high-speed spinning performance while suppressing scum accumulation sufficiently, and a spun yarn obtained with the aforementioned spinning method.
• the inventors have found as a result of studies to solve the problem that the use of a special fiber-processing agent in a special method is beneficial and favorable for spinning with a whirling air spinning machine.
• the present invention relates to a spinning method which uses a whirling air spinning machine for mixing a fiber-processing agent with compressed air in the whirling air spinning machine and spraying the fiber-processing agent on fibers.
• the present invention also relates to the spun yarn obtained with the aforementioned spinning method.
• the fiber-processing agent has a kinematic viscosity at 30°C of 1 x 10 -6 to 100 x 10 -6 m 2 /s and comprises one or two or more of the following lubricant (A), the following lubricant (B) and the following lubricant (C).
• Lubricant (A) is an aliphatic ester compound of carbon number 5-70.
• Lubricant (B) is a linear polyorganosiloxane having a kinematic viscosity at 30°C of 5 x 10 -6 to 100 x 10 -6 m 2 /s.
• Lubricant (C) is a mineral oil having a kinematic viscosity at 30°C of 5 x 10 -6 to 100 x 10 -6 m 2 /s.
• a whirling air spinning machine is used in the spinning method related to the present invention.
• the whirling air spinning machine spins yarn with a whirling flow of compressed air and the whirling air spinning machine itself is widely known (refer to Japanese Patent Publication Tokkai 2001-73235 , Japanese Patent Publication Tokkai 2007-284813 and Tokkai 2011-38210 for example), such as, for example, the product with the name VORTEX (registered trade mark) made by MURATA MACHINERY, LTD.
• the spinning method related to the present invention one or two or more of said lubricant (A), said lubricant (B) and said lubricant (C) are used.
• the spinning method including a fiber-processing agent selected from lubricant (A) is favorable and the spinning method including a fiber-processing agent containing 50 to 100 mass% of lubricant (A) and 0 to 20 mass% of lubricant (B) and 0 to 50 mass% of lubricant (C) (total 100 mass%) is more favorable.
• Lubricant (A) is an aliphatic ester compound of carbon number 5 to 70.
• the aliphatic ester compounds that satisfy this condition include: 1) esters of an aliphatic monohydric alcohol and an aliphatic monocarboxylic acid such as methyl oleate, butyl stearate, octyl stearate, oleyl laurate, and isotridecyl stearate, 2) esters of an aliphatic polyhydric alcohol and aliphatic monocarboxylic acids such as 1,6-hexanediol dioleate and trimethylolpropane monooleate monolaurate, and 3) esters of aliphatic monohydric alcohols and an aliphatic polycarboxylic acid such as dilauryl adipate and dioleyl adipate.
• an aliphatic ester compound of carbon number 15 to 60 is favoured as lubricant (A).
• Lubricant (B) is a linear polyorganosiloxane having a kinematic viscosity at 30°C of 5 x 10 -6 to 100 x 10 -6 m 2 /s.
• the linear polyorganosiloxanes having these characteristics include linear polydimethylsiloxanes, linear polydimethylsiloxanes having a modified group, and so on.
• the modified group in this case can be an ethyl group, a phenyl group, a fluoropropyl group, an aminopropyl group, a carboxyoctyl group, a polyoxyethylene polyoxypropylene group, ⁇ -methoxypolyethoxy ⁇ polypropoxypropyl group or the like.
• Lubricant (C) is a mineral oil having a kinematic viscosity at 30°C of 5 x 10 -6 to 100 x 10 -6 m 2 /s (5 cSt to 100 cSt).
• the fiber-processing agent used for the spinning method related to the present invention has a kinematic viscosity at 30°C of 1 x 10 -6 to 100 x 10 -6 m 2 /s, although a kinematic viscosity of 5 x 10 -6 to 50 x 10 -6 m 2 /s is preferable.
• the above-mentioned fiber-processing agent is mixed with the compressed air used for whirling air spinning and sprayed on the fiber, and the kinematic viscosity of the fiber-processing agent at 30°C should be, as mentioned before, 5 x 10 -6 to 50 x 10 -6 m 2 /s so that the fiber-processing agent is sprayed more evenly on the fiber and attached more evenly to the fiber.
• the pressure of compressed air used for whirling air spinning is from 0.40 to 0.70MPa in regular cases, although a compressed air pressure of 0.45 to 0.65MPa is preferred.
• the fiber-processing agent of the present invention can be used with antifoaming agents, appearance adjusting agents, antioxidants, preservatives, antirust agents or other components according to respective purposes as far as the effects of the present invention are not undermined, while the amount of such components should be as low as possible.
• the fiber-processing agent when the fiber-processing agent is mixed in with the compressed air and sprayed on the fiber for whirling air spinning, the fiber-processing agent can be used either neat or diluted with water or low-viscosity mineral oil or the like.
• a nonaqueous processing agent should be used, either neat, or, in the case of dilution, diluted with an oil-based diluent such as mineral oil in order to be nonaqueous.
• the spun yarn related to the present invention is that obtained through the spinning method related to the present invention described herein.
• This polyester staple fiber was fed to a flat card (made by Howa Machinery, Ltd.) to produce a carded sliver, which is then fed to a PDF type drawing machine (made by ISHIKAWA SEISAKUSHO, LTD.) to prepare a 3.2g/m thick drawn sliver.
• each fiber-processing agent prepared in test division 1 was mixed with compressed air in the whirling air spinning machine and sprayed on the fibers.
• the spraying performance and scum accumulation observed during the operation was evaluated according to the following method and the results are summarized in Table 3.
• the whirling air spinning machine used has multiple spinning units, each of which is provided with draft equipment, whirling air spinning equipment and winding equipment.
• the draft equipment drafts the fiber bundle and feeds it into the whirling air spinning equipment.
• the whirling air spinning equipment generates a whirling air flow within it to spin the fiber bundle and produce a spun yarn.
• the winding equipment winds the spun yarn, which is spun by the whirling air spinning equipment and sends it via an appropriate feeding means to a package.
• the whirling air spinning equipment comprises a spinning chamber, a fiber introduction part, a nozzle holder that is constituted with a whirling-airflow generating nozzle and a spindle (hollow guiding shaft).
• the fiber introduction part guides the fiber bundle, which is formed with the draft equipment, into a spinning chamber.
• the spinning chamber is a space formed by being enclosed by the fiber introduction part, the holder and the spindle.
• the whirling-airflow generating nozzle sprays compressed air into the spinning chamber to generate a whirling airflow, thereby reversing and turning the fiber end of the fiber bundle, which is guided into the spinning chamber, at the spindle tip area.
• the spindle guides the spun yarn from the spinning chamber to the outside of the whirling air spinning equipment.
• the spindle is held at its base on the opposite side of its tip with the spindle holder.
• the whirling air spinning machine used is provided with spraying equipment (trade name POLYMASTER made by MURATA MACHINERY, LTD.) that forms a mist of the fiber-processing agent.
• the spraying equipment is located in the upstream of the whirling-airflow generating nozzle and mixes a mist of the fiber-processing agent into the compressed air which is guided into the spinning chamber.
• the spraying equipment can be configured so that it directly feeds the fiber-processing agent to each whirling air spinning equipment or it feeds the fiber-processing agent to the common feeding pipe provided to feed air to multiple whirling air spinning equipment. Details of these are specified in Japanese Patent Publication Tokkai 2008-95208 and Japanese Patent Publication Tokkai 2011-84854 .
• a mist of the fiber-processing agent was mixed, using the spraying equipment, with the compressed air used for the spinning of the whirling air spinning machine and sprayed at a temperature of 25°C, relative humidity of 65%, and a compressed air pressure of 0.55MPa for five hours.
• the spraying state of the fiber-processing agent was visually observed and evaluated according to the following criterion. The results are summarized in Table 3.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Spinning Or Twisting Of Yarns (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=49596061

Family Applications (1)

Country Status (4)

Families Citing this family (6)

Family Cites Families (19)

• 2012
  • 2012-11-09 JP JP2012247049A patent/JP5936193B2/ja active Active
• 2013
  • 2013-08-30 IN IN2839MU2013 patent/IN2013MU02839A/en unknown
  • 2013-11-08 EP EP20130192152 patent/EP2730695B1/en active Active
  • 2013-11-08 CN CN201310549996.7A patent/CN103806150B/zh active Active

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