EP0360383A2 - Fibre de coton élastique et sa méthode - Google Patents

Fibre de coton élastique et sa méthode Download PDF

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Publication number
EP0360383A2
EP0360383A2 EP89306807A EP89306807A EP0360383A2 EP 0360383 A2 EP0360383 A2 EP 0360383A2 EP 89306807 A EP89306807 A EP 89306807A EP 89306807 A EP89306807 A EP 89306807A EP 0360383 A2 EP0360383 A2 EP 0360383A2
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EP
European Patent Office
Prior art keywords
fibers
resin
fact
finish
lubricant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP89306807A
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German (de)
English (en)
Other versions
EP0360383A3 (fr
Inventor
Duane A. Parker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Paper Co
Original Assignee
International Paper Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Paper Co filed Critical International Paper Co
Publication of EP0360383A2 publication Critical patent/EP0360383A2/fr
Publication of EP0360383A3 publication Critical patent/EP0360383A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • D06M15/6436—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
    • 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
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/423—Amino-aldehyde resins

Definitions

  • This invention generally relates to a process of treating individual fibers to have an improved resiliency, and more particularly, to treating individual fibers with a finish solution containing a durable press resin and a lubricant so that the fibers have improved resiliency and other properties suitable as a fiber fill material and for other uses.
  • Patent 4,269,603 of Worth teaches the use of a formaldehyde-free finishing agent containing glyoxyl with reactive silicone and a catalyst.
  • U.S. Patent 4,345,063 of North teaches durable press treatment using alkylated condensate resin products of the reaction of glyoxyl and cyclic ureas which are free of formaldehyde.
  • polyester fibers are normally used because of their resiliency.
  • cotton fibers would be preferred as a fill material because of their lower cost and comfortableness of feel, they do not have the resiliency of polyester fibers, and tend to become clumpy or matted and do not retain their original volume after repeated use.
  • cotton and other natural fibers have heretofore not been suitable as a fiber fill material for the home furnishing market.
  • the invention seeks to provide a treatment for cellulosic fibers, such as cotton fibers, to have improved properties suitable for a fiber fill material.
  • a further object is to provide an improved fiber product of individual fibers which are finish-treated to have an improved resiliency and can maintain their volume.
  • a process for treating individual fibers to have an improved resiliency comprises the steps of saturating the individual fibers with a solution containing a durable press resin and a lubricant such that the resin saturates to the interior of the fibers while the lubricant is retained at or near the surface of the fibers, and drying and curing the resin to be cross-linked to the fibers before the lubricant can be absorbed into the interior of the fibers.
  • the lubricant is selected to have a larger molecular structure than the resin, so that the resin is absorbed more readily into the interior of the fibers than the lubricant.
  • scoured and bleached cotton fibers are saturated with a solution containing a formaldehyde-free, alkylated glyoxyl/cyclic urea condensate resin and an amino-group silicone, then dried and cured.
  • the resultant fibers have a resiliency equal to or better than polyester fiber.
  • the resin component gives the treated fibers resiliency, while the silicone imparts lubrication to the fibers to reduce interfiber friction to allow them to slip easily across each other.
  • an improved fiber product comprises individual fibers, and particularly individual cotton fibers, provided with a finish of a durable press resin and a lubricant, wherein the resin is saturated and cured and cross-­linked to the interior of the fibers while the lubricant is retained at or near the surface of the fibers.
  • the finish-treated cotton fibers have a resiliency of about 4.1 - 5.8 centimeters or more of recovery after initial compression compared to about 4.1 centimeters for polyester fibers, as measured by a compression-­regain method of testing resiliency.
  • Figs. 1A and 1B two alternative processes for making the high resiliency fibers in accordance with the invention are shown generally comprising the steps of scouring and bleaching raw and unfinished fibers, saturating them with a finish solution containing a durable press resin and a lubricant, then drying and curing the fibers to produce the high resiliency fiber product (sometimes referred to herein as "hi-loft" fibers).
  • the particular example of standard mature cotton fibers is used, although the invention can also be applied to other cellulosic fibers, such as cotton linters, as well as to other fibers which have, or are treated to have, a structure which can absorb and cross-link with durable press resin.
  • bales of griege cotton fibers are opened and cleaned with step cleaners.
  • a carded mat of cotton fibers is formed.
  • the mat is saturated in a caustic and surfactant solution in the scouring step, and passed through a scour steamer at a suitable temperature and time required for removal of basic impurities such as wax, oils, pectins, etc.
  • the mat is saturated in a bleaching solution, such as hydrogen peroxide or sodium hypochlorite, to bleach the fibers white, passed through a bleach steamer at a suitable temperature and time required for bleaching to occur, and rinsed to remove the bleach liquor and adjust the pH of the fiber surface residues.
  • the scoured and bleached cotton fibers are then immersed in a finish bath containing the durable press resin, the lubricant, and a catalyst.
  • the fibers are immersed such that the resin can saturate to the interior of the fibers while the lubricant remains at or near the surface of the fibers.
  • the finish-treated fibers are then dried and cured within a time period before the lubricant can be absorbed into the interior of the fibers.
  • the dried mat is then broken up in a tufter and baled as the hi-loft cotton fiber product.
  • the continuous process depends on the use of conveyors and other aids to transport the carded mat of fibers through the process.
  • the mat is preferably in the range of 24 oz./sq.yd.
  • the heavier weight helps maintain the integrity of the fibers through the continuous process.
  • One advantage of this process is the locking of the fibers in an open web state before scouring and bleaching, in order to prevent the formation of ropes, strings, and neps associated with cotton fibers processed in batches.
  • bales of griege cotton fibers are opened and cleaned with step cleaners.
  • the fibers are then saturated with a caustic and surfactant solution, and formed into large (for example, 600 lb.) cakes by placing the wet fibers into a rotating rub and mechanically stamping the wet mixture to make the cakes as uniform as possible.
  • the mixture is then pressed in a hydraulic press to form a compressed cake of fibers having the appearance of a large doughnut.
  • the doughnut shaped cakes are stacked in a cage and placed in a kier where they are subjected to a standard scouring and bleaching step.
  • the cakes are then removed from the kier, and each cake is dewatered, for example, by placing it in a hydroextractor and spinning to remove as much water as possible.
  • the dewatered cakes are put in a cake attacker or wet picker and broken up into small wet tufts.
  • the finish solution containing the durable press resin, lubricant, and catalyst is applied to the fibers by spraying or immersion, and the fibers are then fed into a drier where they are dried and cured.
  • the dewatered cakes can be directly immersed in a finish bath, then separated and formed in a mat for drying and curing.
  • the fibers can be further processed through an opener to fluff them into individual fibers as much as possible, then baled and wrapped for shipment.
  • a cotton fiber has an outer sheath and an interior core (lumen).
  • the cotton fibers are scoured and bleached to remove their natural surface repellancy, and to render them absorbent so that they will quickly absorb the resin into the interior of the fibers.
  • the lubricant will also tend to be absorbed into the fibers. Therefore, the resin is selected to have a smaller molecular structure than the lubricant, so that it is more readily absorbed into the interior while the lubricant stays on the surface of the fibers.
  • the lubricant may be gradually absorbed into the interior of the fibers. This would reduce the desired resilient properties of the fibers. Moreover, the lubrication of the fibers would be reduced. Therefore, the curing of the fibers must follow the drying of the fibers within a relatively short period of time.
  • the finish solution applied to the fibers in the above-­described processes preferably contains 1.0% - 4.0% formaldehyde-­free alkylated glyoxyl/cyclic urea condensate resin, with 2.5% - 4.0% being the most preferred range, 1.5% - 2.5% reactive silicone, and 0.6% - 0.7% magnesium chloride hexahydrate as the catalyst in water as the carrying medium.
  • Formaldehyde-free alkylated glyoxyl/cyclic urea condensate resins are obtained, as disclosed in U.S. Patent 4,345,063 of North, by reacting cyclic urea and glyoxyl in the presence of a catalyst to yield a water-­soluble oligomer condensate.
  • the condensate is then wholly or partly alkylated by reacting it with an alcohol.
  • glyoxal is reacted with an alkylated cyclic urea.
  • the reaction product is a formaldehyde-free resin suitable for application as a finish to cellulose fibers as described above.
  • Other resins which can be used include melamine resin, as well as formaldehyde-­containing resins, such as glyoxyl (DMDHEU) resin.
  • DMDHEU formaldehyde-­containing resins
  • the resin should also be selected so that it does not bond the fibers together.
  • the lubricant is selected to have a lubricity which can overcome the interfiber surface friction, as well as a larger molecular structure than the resin.
  • a reactive silicone can suitably be used, particularly an amino-functional group silicone, since it has an affinity for and tends to readily cover the hairy, scaly points on the surface of the cotton fibers.
  • Other lubricants which can be used include stearates, such as butoxyethylstearate, or fatty acids.
  • the catalyst is provided to promote cross-linking of the resin to the fibers.
  • Preferred catalysts include metal salts, such as magnesium chloride hexahydrate.
  • the drying step can be carried out with dry cans providing radiant heat, or with forced hot air or an oven.
  • the fibers are dried to 5% or less moisture before starting curing.
  • Curing can be carried out from about 280 degrees to about 360 degrees Fahrenheit, and the curing time can vary from about 30 to 60 seconds depending on temperature.
  • the preferred curing temperature is about 300 to 320 degrees.
  • a curing temperature above 360 degrees may cause browning or yellowing of the silicone or resin finish on the cotton fibers.
  • the resultant finish-treated fibers are found to have an improved resiliency as measured by the compression-regain method of resiliency measurement.
  • the measurement is taken by compressing a sample of fibers in a cylinder with a plunger.
  • a one gram fiber sample is formed into a sliver and inserted into a standard 3/4 inch test tube. With the tube in a vertical position, a plunger with a one-pound weight attached is inserted in the tube and compresses the fiber sample under gravity. After a waiting period (5 minutes), the compressed height of the fibers is measured, and the plunger is removed. Following a recovery period (5 minutes), the recovery height of the fibers is measured. The difference between the compressed height and the recovery height is taken as a measurement of fiber resiliency.
  • cotton fibers treated with a range of finish formulations in accordance with the invention are shown in Table I below.
  • the alkylated glyoxyl/cyclic urea condensate resin used was ZF-4, as sold by Sequa Chemicals of Chester, South Carolina.
  • the silicone used was Sequa Soft-89 silicone, and the catalyst was #531, 30% magnesium chloride hexahydrate solution, also sold by Sequa Chemicals.
  • cotton fibers treated only with a surfactant (S634 cationic soap from Sequa Chemicals) and polyester fibers (PET) were also measured for resiliency.
  • Catalyst 0.6% 0.7% 0.6% 0.6% Surfactant: 0.2%
  • the treated cotton fibers of Table I had a resiliency measured as 4.1 - 5.8 cm. or more of recovery, compared to 2.4 cm. for untreated (surfactant only) cotton fibers and 4.1 cm. for polyester fibers.
  • the resin/silicone finish treatment provided a superior resiliency to the cotton fibers comparable to or substantially greater than that of polyester fibers.
  • Other tests of treated cotton fiber using lesser amounts of resin than 3.0% also showed an improved resiliency over unfinished cotton fibers, though not as high as polyester fibers. Similar results can be obtained for other types of cellulosic fibers, such as cotton linters, and other fibers.
  • the durable press resin/lubricant treated fibers of the invention have the properties of increased resiliency as well as lubrication to allow them to slide easily over each other to maximize the resiliency effect.
  • Treatment with resin alone will impart lesser resiliency properties to the cotton fibers, in the range of one-third to one-half that of the cotton fibers treated with resin and lubricant.
  • the bleached cotton fibers tended to have 100% pickup of resin and lubricant from the finish solution.
  • the resulting treated fibers therefore preferably have about 0.675 - 1.8 grams of resin per 100 grams of fiber.
  • the preferred range of silicone was about 0.13 - 1.125 grams to 100 grams of fiber.
  • the increased resiliency of the finish-treated fibers further results in an enhanced softness and an increased void volume being maintained around the fibers.
  • the resilient fibers can also be used to form highly absorbent layers due to their maintenance of the void volume around the fibers and the capacity to absorb and retain moisture in the void volume.
  • the resilient fibers can be mixed with absorbent fibers, such as wood pulp fibers, superabsorbent polymer particles or other absorbent materials.
  • the resilient fibers maintain the void volume used by the absorbent materials to absorb moisture, thereby enhancing the absorptive capacity of the layer. If the fibers are treated with a hydrophilic lubricant, such as glycerine or butoxyethylstearate, the absorption capacity of the fibers is retained, thereby increasing the total absorptive capacity of the layer.
  • An absorbent layer structure using the resilient finish-­treated fibers can have greater absorbency than a conventional superabsorbent layer using untreated cotton fibers and even synthetic fibers, due to the enhanced resiliency and lofted volume of the finish-treated fibers.
  • Suitable applications for the absorbent layer structure include diaper absorbent sheets, sanitary napkins, absorbent sheets, tissues, towels, etc.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
EP19890306807 1988-09-21 1989-07-04 Fibre de coton élastique et sa méthode Withdrawn EP0360383A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24719988A 1988-09-21 1988-09-21
US247199 1988-09-21

Publications (2)

Publication Number Publication Date
EP0360383A2 true EP0360383A2 (fr) 1990-03-28
EP0360383A3 EP0360383A3 (fr) 1991-12-11

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EP19890306807 Withdrawn EP0360383A3 (fr) 1988-09-21 1989-07-04 Fibre de coton élastique et sa méthode

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EP (1) EP0360383A3 (fr)
JP (1) JPH02118179A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001081669A1 (fr) * 2000-02-15 2001-11-01 The Procter & Gamble Company Procede d'application d'apprets de pressage permanent a des composants textiles a l'aide d'une preparation de blanchiment hydrophobe
US6569209B2 (en) 2001-02-27 2003-05-27 The Procter & Gamble Company Method for the use of hydrophobic bleaching systems in cold batch textile preparation
US6734147B2 (en) 1995-06-07 2004-05-11 Lcc County Mosquito Control Lubricant compositions and methods
US6743761B2 (en) 2000-02-15 2004-06-01 The Procter & Gamble Company Method for the one step preparation of textiles
US6830591B1 (en) 2000-02-15 2004-12-14 The Procter & Gamble Company Method for the use of hydrophobic bleaching systems in textile preparation
US7718585B2 (en) 1995-06-07 2010-05-18 Lee County Mosquito Control District Lubricant compositions and methods
US7767631B2 (en) 1995-06-07 2010-08-03 Lee County Mosquito Control District Lubricant compositions and methods
WO2015041862A1 (fr) * 2013-09-19 2015-03-26 Huntsman International Llc Processus de traitement de matériaux non tissés et produits obtenus à partir de ceux-ci
CN113372678A (zh) * 2021-06-23 2021-09-10 中国科学院兰州化学物理研究所 一种含油纤维-聚合物自润滑复合材料及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103938364B (zh) * 2014-04-01 2016-06-15 上海婉静纺织科技有限公司 抗菌汽车坐垫及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB896874A (en) * 1958-05-13 1962-05-23 Nisshin Boseki Kabushiki Kaish Improvements in the production of crease-resistant cotton woven fabrics
FR2173249A1 (fr) * 1972-02-25 1973-10-05 Dow Corning
EP0020034A1 (fr) * 1979-05-04 1980-12-10 Riegel Textile Corporation Procédé d'apprêtage durable de produits textiles sans formaldéhyde, agent d'apprêtage pour le procédé, et produits textiles ainsi traités

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JPS5335100A (en) * 1976-09-09 1978-04-01 Mitsubishi Rayon Co Acid resistant finish for aromatic polyamide
JPS5424518A (en) * 1977-07-26 1979-02-23 Nippon Telegr & Teleph Corp <Ntt> Power supply system for photo repeater
US4167501A (en) * 1978-04-13 1979-09-11 Dow Corning Corporation Process for preparing a textile-treating composition and resin-silicone compositions therefor
JPS57139123A (en) * 1981-01-30 1982-08-27 Union Carbide Corp Organosilicone ternary copolymers and use for fiber treatment
JPS6037228B2 (ja) * 1981-06-29 1985-08-24 ト−レ・シリコ−ン株式会社 繊維用処理剤
JPS6197490A (ja) * 1984-10-18 1986-05-15 信越化学工業株式会社 染色繊維製品の濃色化方法
DE3503457A1 (de) * 1985-02-01 1986-08-07 Wacker-Chemie GmbH, 8000 München Verfahren zur impraegnierung von organischen fasern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB896874A (en) * 1958-05-13 1962-05-23 Nisshin Boseki Kabushiki Kaish Improvements in the production of crease-resistant cotton woven fabrics
FR2173249A1 (fr) * 1972-02-25 1973-10-05 Dow Corning
EP0020034A1 (fr) * 1979-05-04 1980-12-10 Riegel Textile Corporation Procédé d'apprêtage durable de produits textiles sans formaldéhyde, agent d'apprêtage pour le procédé, et produits textiles ainsi traités

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TEXTILE CHEMIST AND COLORIST. vol. 18, no. 3, March 1986, NORT CAROLINA US pages 34 - 37; M.M. JOYNER: 'AMINOFUNCTIONAL POLYSILOXANES: A NEW CLASS OF SOFTENERS ' *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7718585B2 (en) 1995-06-07 2010-05-18 Lee County Mosquito Control District Lubricant compositions and methods
US6734147B2 (en) 1995-06-07 2004-05-11 Lcc County Mosquito Control Lubricant compositions and methods
US7338926B2 (en) 1995-06-07 2008-03-04 Lee County Mosquito Control District Lubricant compositions and methods
US7358216B2 (en) 1995-06-07 2008-04-15 Lee County Mosquito Control District Lubricant compositions and methods
US7553541B2 (en) 1995-06-07 2009-06-30 Lee County Mosquite Control District Lubricant compositions and methods
US7767631B2 (en) 1995-06-07 2010-08-03 Lee County Mosquito Control District Lubricant compositions and methods
US6740126B2 (en) 2000-02-15 2004-05-25 Strike Investments, Llc Method for the application of durable press finishes to textile components via the use of hydrophobic bleaching preparation
US6743761B2 (en) 2000-02-15 2004-06-01 The Procter & Gamble Company Method for the one step preparation of textiles
US6830591B1 (en) 2000-02-15 2004-12-14 The Procter & Gamble Company Method for the use of hydrophobic bleaching systems in textile preparation
WO2001081669A1 (fr) * 2000-02-15 2001-11-01 The Procter & Gamble Company Procede d'application d'apprets de pressage permanent a des composants textiles a l'aide d'une preparation de blanchiment hydrophobe
US6569209B2 (en) 2001-02-27 2003-05-27 The Procter & Gamble Company Method for the use of hydrophobic bleaching systems in cold batch textile preparation
WO2015041862A1 (fr) * 2013-09-19 2015-03-26 Huntsman International Llc Processus de traitement de matériaux non tissés et produits obtenus à partir de ceux-ci
CN113372678A (zh) * 2021-06-23 2021-09-10 中国科学院兰州化学物理研究所 一种含油纤维-聚合物自润滑复合材料及其制备方法

Also Published As

Publication number Publication date
JPH02118179A (ja) 1990-05-02
EP0360383A3 (fr) 1991-12-11

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