EP1425461A2 - Procede de production de gaines cellulosiques attachees autour de fibres de textiles et textiles produits de cette maniere - Google Patents

Procede de production de gaines cellulosiques attachees autour de fibres de textiles et textiles produits de cette maniere

Info

Publication number
EP1425461A2
EP1425461A2 EP02705954A EP02705954A EP1425461A2 EP 1425461 A2 EP1425461 A2 EP 1425461A2 EP 02705954 A EP02705954 A EP 02705954A EP 02705954 A EP02705954 A EP 02705954A EP 1425461 A2 EP1425461 A2 EP 1425461A2
Authority
EP
European Patent Office
Prior art keywords
fibrous substrate
carbohydrate
fibers
sheath
sheathing
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Withdrawn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
EP02705954A
Other languages
German (de)
English (en)
Inventor
David A. Offord
Dan B. Millward
William Ware, Jr.
David S. Soane
Manfred A. Young
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.)
Nano Tex Inc
Original Assignee
Nano Tex Inc
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 Nano Tex Inc filed Critical Nano Tex Inc
Publication of EP1425461A2 publication Critical patent/EP1425461A2/fr
Withdrawn legal-status Critical Current

Links

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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/05—Cellulose or derivatives thereof
    • D06M15/09—Cellulose ethers
    • 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
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof

Definitions

  • Any compound capable of bonding to two or more nucleophiles can be used as a crosslinker to link the hydroxyl groups on the carbohydrate sheath around and/or to the core fiber.
  • nucleophiles e.g., hydroxyl, amine, thiol, etc.
  • a crosslinker to link the hydroxyl groups on the carbohydrate sheath around and/or to the core fiber.
  • crosslinking chemistries including polycarboxylic acids, aminoplasts (N- methylol), isocyanates, epichlorohydrin, and crosslinkable siloxane polymers, could be employed.
  • Currently preferred crosslinkers are polycarboxylic acids and N-methylol compounds.
  • Polycarboxylic acid crosslinkers include butanetetracarboxylic acid, polymaleic acid, polyacrylic acid, citric acid, etc.
  • US Pat. 6,136,044 issued to Todd discloses the use of metal colloids to color substrates such as fibers, yarns and textiles.
  • the substrate to be colored is first placed in a bath containing a reducing agent, preferably an agent that has some substantivity to the substrate. After allowing sufficient time for the reducing agent to adsorb, the substrate is removed from the bath, optionally dried, then placed in a second bath containing a dissolved metal salt corresponding to the metal colloid of interest.
  • the adsorbed reducing agent reduces the salt to the colloid and serves as a nucleating site for particle growth.
  • the resulting particle is adsorbed to the substrate or optionally entangled with the substrate.
  • Another embodiment of the "two-tone" invention would be to have a separate dyeing step in the processing of the textile.
  • the core fiber (dyed or undyed) would be treated with the carbohydrate outer layer and the fabric subsequently dyed with "cotton" dyes.
  • the dyes would be chosen to react or adhere to the outer surface and not the inner core, or vice versa.
  • a polyester fabric treated with the carbohydrate sheath could be selectively dyed with polyester-specific dyes for the inner core color (or none for white) and dyes specific for carbohydrates to dye the outer layer.
  • One-Step method The most facile process is incorporation of the colorant into the base carbohydrate sheathing formulation prior to application of the finish to fabric.
  • the colored formulation is then applied according to conventional methods such as immersion, spray, or padding, wherein the latter method is preferred.
  • the colorant may be held within the sheath by such means as physical entanglement or encapsulation, electrostatic coordination, or chemical bonding to the sheathing material.
  • this method provides is in attainable depths of shade.
  • the sheathing layer is at most ten-fold less thick than the fabric fiber it encapsulates and is probably even smaller. Distributing the colorant evenly throughout the sheathing layer maximizes the amount of colorant applied.
  • the mordant and mordant-reactive dye are mixed into a base carbohydrate sheathing formulation.
  • the mordant and mordant reactive dye are mixed into the formulation in an amount, order and manner that facilitate desired properties of the resulting colored formulation.
  • the resulting formulation is stable, e.g. the mordant complexes do not precipitate out. Stability is facilitated by mordant coordination to reactive groups on the water-soluble polymers of the base sheathing formulation.
  • the base sheathing formulation is sufficiently viscous, the mordant complexes may be adequately suspended within the formulation and water solubility may not be required.
  • sheath-wrapped fibrous substrate is exposed to mordant-metal solution.
  • the mordant metal is exhausted onto the substrate by complexation with exposed reactive groups of the sheath material.
  • the mordant-treated fibrous substrate is then removed from the solution, optionally dried, and then exposed to a solution containing a mordant-reactive dye.
  • the dye is exhausted onto the sheath layer via complexation with the mordant on the sheath surface.
  • Vat and sulfur dyes are hybrids between dyes and pigments; they are used to dye cotton and other cellulose-based fibers. In their chemically reduced (“leuco") forms they are water-soluble dyes, but when oxidized they become insoluble pigments. In conventional fiber dyeing, the fibers are exposed to the dyes in reduced form, which facilitates penetration of the dyes into the fiber. The fibers are then exposed to oxidating conditions, which induce the formation of insoluble particles adsorbed within the fibers. This hybrid behavior provides a variety of methods in which these dyes may be used as colorants in the sheathing formulation.
  • one or more of the sheathing material components are added to a solution of a leuco, vat or sulfur dye.
  • the component(s) are added in an amount equivalent to their weight percentage in the base sheathing formulation. More preferably, the addition of the components significantly increases the viscosity of the solution.
  • the leuco dye is then oxidized to form a dispersion of particles, preferably partially encapsulating the sheathing material component(s). If required, the remaining components of the base sheathing formulation are added and the pH is adjusted to the required specification for cross-linking.
  • the colored formulation is then applied to a fibrous substrate, and the substrate is cured to affix the sheathing layer. The encapsulated colorants are held fast by physical entanglements.
  • the treated substrate is then dyed with a reactive dye in a multiple-step method, wherein the reactive dye reacts preferentially with the remaining functional group of the reagent.
  • the sheathing formulation incorporates one bifunctional reagent and the reactive dye is modified with a second bifunctional reagent.
  • the two reagents each contain at least one functional group which reacts preferentially with a functional group of the other reagent. Either a one-step or multiple-step application may be envisioned in this case. Similar ideas have been presented by Lewis and Vigo (Lewis, D.M., Lei, X.; AATCC International Conference and Exhibition Book of Papers, Oct 4-7, 1992, pp.
  • Sanded, tan Burlington Industries' (Greensboro, NC) style 2606 polyester was dipped in the above solution and padded to 93% wet pick up, dried 5 min. at 250°F, and cured 30 sec at 390°F. The treated samples were then tested as described hereinabove.
  • Example 6 An individual fiber from a polyester fabric treated with carboxymethylcellulose according to the present invention (Example 6, formulation prior to addition of colorant) was viewed by scanning electron microscopy (5000X).
  • the cellulosic sheath formed around the hydrophobic fiber was too thin to be detected on the scanning electron micrograph.
  • properties imparted by the sheath do not disturb the macro properties of the fabric; that is, the sheath does not significantly increase the diameter of the fibers, it does not fill spaces between fibers or clog the fabric with large pieces of cellulosics, and the like.
  • the treated fabric feels like cotton to the touch, rather than like polyester, and exhibits improved wettability.
  • Example 12 Incorporation of auxiliaries into sheath layer: Activated carbon.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Woven Fabrics (AREA)

Abstract

La présente invention concerne un procédé de traitement d'un substrat synthétique, créé par l'homme ou en fibres naturelles qui permet de créer une gaine glucidique fixé à demeure autour des fibres du substrat. Un tel traitement produit un substrat fibreux composite qui présente les caractéristiques les plus souhaitables pour l'âme en textile combinées aux caractéristiques les plus souhaitables pour la gaine glucidique. Il est également possible d'appliquer cette technologie à des fibres synthétiques ou des fils individuels, si nécessaire, avant le tissage, le tricotage, le liage par couture ou tout autre procédé de formation d'un substrat en matière tissée ou non tissée.
EP02705954A 2001-01-25 2002-01-24 Procede de production de gaines cellulosiques attachees autour de fibres de textiles et textiles produits de cette maniere Withdrawn EP1425461A2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US26418101P 2001-01-25 2001-01-25
US264181P 2001-01-25
US31635801P 2001-08-30 2001-08-30
US316358P 2001-08-30
PCT/US2002/002091 WO2002059404A2 (fr) 2001-01-25 2002-01-24 Procede de production de gaines cellulosiques attachees autour de fibres de textiles et textiles produits de cette maniere

Publications (1)

Publication Number Publication Date
EP1425461A2 true EP1425461A2 (fr) 2004-06-09

Family

ID=26950311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02705954A Withdrawn EP1425461A2 (fr) 2001-01-25 2002-01-24 Procede de production de gaines cellulosiques attachees autour de fibres de textiles et textiles produits de cette maniere

Country Status (5)

Country Link
EP (1) EP1425461A2 (fr)
JP (1) JP2004526064A (fr)
CN (1) CN1520481A (fr)
AU (1) AU2002240071A1 (fr)
WO (1) WO2002059404A2 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030101518A1 (en) 2000-01-18 2003-06-05 Nano-Tex, Llc Hydrophilic finish for fibrous substrates
EP1441831A4 (fr) 2001-10-19 2005-10-26 Innovative Constr & Build Mat Materiau de filtration d'air anti-pathogenes et dispositifs de traitement d'air offrant une protection contre les microorganismes infectieux en suspension dans l'air
US20050246841A1 (en) * 2004-05-05 2005-11-10 The Procter & Gamble Company Textile benefit compositions
US7238423B2 (en) 2004-12-20 2007-07-03 Kimberly-Clark Worldwide, Inc. Multicomponent fiber including elastic elements
US8168852B2 (en) 2004-12-23 2012-05-01 Kimberly-Clark Worldwide, Inc. Activated carbon substrates
ITMI20111901A1 (it) 2011-10-19 2013-04-20 Alfonso Saibene Procedimento per il conferimento di idoneita' alla tessitura ad un filato e/o ordito sottili
EP2986772B1 (fr) * 2013-04-18 2018-07-25 Canepa, Elisabetta Procédé pour fabriquer un fil adapté au tissage
IN2013MU02827A (fr) 2013-08-29 2015-07-03 Green Impact Holdings Gmbh
KR20160145053A (ko) * 2014-04-18 2016-12-19 카네파 에스.피.에이. 얀 또는 패브릭의 화학적 및/또는 물리적 특성의 개선 방법
US10982381B2 (en) 2014-10-06 2021-04-20 Natural Fiber Welding, Inc. Methods, processes, and apparatuses for producing welded substrates
US10011931B2 (en) 2014-10-06 2018-07-03 Natural Fiber Welding, Inc. Methods, processes, and apparatuses for producing dyed and welded substrates
US11766835B2 (en) 2016-03-25 2023-09-26 Natural Fiber Welding, Inc. Methods, processes, and apparatuses for producing welded substrates
CN113930874B (zh) * 2016-05-03 2022-11-01 天然纤维焊接股份有限公司 用于生产染色的焊接基质的方法、工艺和设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125875B (de) * 1961-09-05 1962-03-22 Dr Ulrich Einsele Verfahren zum Appretieren von Textilien mit hydroxylgruppenhaltigen hochmolekularen Stoffen
FR1419645A (fr) * 1963-07-04 1965-12-03 Ici Ltd Traitement de matières textiles
US3480380A (en) * 1966-04-06 1969-11-25 Tee Pak Inc Composite cellulose-wool products
DE2441781C3 (de) * 1974-08-31 1980-12-04 Hoechst Ag, 6000 Frankfurt Verfahren zur Verbesserung der Wasseraufnahme und Saugfähigkeit von Fasermaterialien
US4931524A (en) * 1986-02-17 1990-06-05 Dai-Ichi Kogyo Seiyaku Co., Ltd. Surface-treatment of synthetic or semi-synthetic fiber textile materials
GB2355729A (en) * 1998-03-24 2001-05-02 Nano Tex Llc Modified textile and other materials and methods for their preparation
GB9903842D0 (en) * 1999-02-20 1999-04-14 Arcasorb Technolgy Limited Substrates and substrate treatment process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02059404A3 *

Also Published As

Publication number Publication date
CN1520481A (zh) 2004-08-11
JP2004526064A (ja) 2004-08-26
WO2002059404A3 (fr) 2004-02-19
AU2002240071A1 (en) 2002-08-06
WO2002059404A2 (fr) 2002-08-01

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