US20070275453A1 - Method for the Modification of Polyacrylonitrile Fibres Containing Vinyl Acetate as a Comonomer and Polyamide Fibres, Using a Cutinase Enzyme - Google Patents

Method for the Modification of Polyacrylonitrile Fibres Containing Vinyl Acetate as a Comonomer and Polyamide Fibres, Using a Cutinase Enzyme Download PDF

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Publication number
US20070275453A1
US20070275453A1 US10/577,012 US57701204A US2007275453A1 US 20070275453 A1 US20070275453 A1 US 20070275453A1 US 57701204 A US57701204 A US 57701204A US 2007275453 A1 US2007275453 A1 US 2007275453A1
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United States
Prior art keywords
enzyme
fibre
fibres
comonomer
vinyl acetate
Prior art date
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Abandoned
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US10/577,012
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English (en)
Inventor
Artur Paulo
Ana Filipa Goncalves Carneiro
Carla Manuela Silva
Rita Isabel Araujo
George Guebitz
Margarida Paula Casal
Maria Teresa Goncalves Matama
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Publication of US20070275453A1 publication Critical patent/US20070275453A1/en
Abandoned legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M16/00Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
    • D06M16/003Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms

Definitions

  • the quality and the processing properties of filaments in the extrusion line, fibres, yarns and textile fabrics can be improved by modifying their surface.
  • the traditional processes used for their modification require chemical agents with negative environmental effects. These negative effects can be prevented by using new processing techniques based on biotechnology.
  • Enzymatic processes can be used to modify the surface of fabrics constituted by synthetic fibres. Hydrolysis of polyacrylonitrile fibres containing vinyl acetate as a comonomer and polyamide fibres results in the formation of hydrophilic groups. The increase in these groups at the surface of the fibres provides hydrophilic characteristics, therefore improving the comfort properties. This treatment also allows these fibres to be dyed with specific reactive dyes.
  • Cutinase 3.1.1.74 is an esterase which degrades cutine, a structural polymeric component of plants composed of fatty acids (Carvalho et al., Biotech. Bioeng., 1999, 66, 17-34). This is an enzyme which is not very specific and which hydrolyses soluble and non-soluble p-nitrophenyl esters and triglycerides.
  • Cutinase is an esterase which shares the catalytic triad of serine-histidine-aspartic acid with other esterases and amidases, meaning that the degradation of amides besides ester groups is theoretically possible. Recent research demonstrates that cutinase has activity in more hydrophobic media due to the external amino acids in the 3D structure (Vidinha et al. (2003) “Effect of immobilization support, water activity and enzyme ionization state on cutinase activity and enantioselectivity in organic media”, Biotechn. Bioeng., accepted).
  • This invention describes the use of cutinase to modify the surface of synthetic polyacrylonitrile fibres containing vinyl acetate as a comonomer and polyamide fibres.
  • Superficial hydrolysis of the ester and amide groups of the polyacrylonitrile fibres containing vinyl acetate as a comonomer and polyamide fibres, respectively, causes the formation of hydroxyl groups in the polyacrylonitrile fibres containing vinyl acetate as a comonomer and carboxylic and amino groups in the polyamide fibres.
  • the increase in these groups at the surface of the fibres gives the fabric hydrophilic characteristics, therefore improving the comfort properties.
  • a first embodiment of the invention consists of a method for the treatment of polyacrylonitrile fibre containing vinyl acetate as a comonomer, which comprises the contact of the fibre with an enzyme solution in order to modify the chemical surface of the fibre, increasing the number of hydrophilic hydroxyl groups.
  • a second embodiment of the invention consists of a method for the treatment of polyamide fibre, which comprises the contact of the fibre with an enzyme solution in order to modify the chemical surface of the fibre, increasing the number of hydrophilic amino groups.
  • the treatment of the polyacrylonitrile fibre containing vinyl acetate as a comonomer or the polyamide fibre is preferably carried out using an enzyme with esterase action.
  • the enzyme preferably contains the catalytic triad of serine-histidine-aspartic acid.
  • the abovementioned enzyme esterase is preferably a hydrolase that degrades cutine.
  • the amount of enzyme used is normally between 1 and 400 g of protein per kg of fibre.
  • a treatment bath with a retrievable and reusable enzyme is used.
  • the method consists of the chemical modification of the surface of polyacrylonitrile fibres containing vinyl acetate as a comonomer (constituted by about 93% acrylonitrile and 7% vinyl acetate) and polyamide fibres through the action of a cutinase solution obtained from the heterologous expression of Fusarium solani pisi cutinase, by the Escherichia coli DHB4 transformed strain.
  • the treatment was carried out in a ROTAWASH machine that simulates dyeings and other textile treatments.
  • Each container had between 1 and 2 U ( ⁇ mol/min as pNPP—paranitrophenolpalmitate) of cutinase activity.
  • Samples of 0.7 g of polyacrylonitrile fabric containing vinyl acetate as a comonomer were washed with water containing 1 g/L of Lutensol and dried at 50° C.
  • the samples were then placed in a container with 1 U of cutinase, in a bath ratio of 1:35 (p/v).
  • the treatment was carried out at pH 7.5 and at 30° C., for a period of 700 hours.
  • the samples were removed from the solution, washed with water containing 2 g/L of Na 2 CO 3 and dried at room temperature.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
US10/577,012 2003-10-29 2004-10-28 Method for the Modification of Polyacrylonitrile Fibres Containing Vinyl Acetate as a Comonomer and Polyamide Fibres, Using a Cutinase Enzyme Abandoned US20070275453A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PT103035A PT103035A (pt) 2003-10-29 2003-10-29 Metodo para modificacao das fibras de poliacrilonitrilo com acetato de vinilo como comonomero e de poliamida, utilizando uma enzima cutinase
PTPT103035 2003-10-29
PCT/PT2004/000025 WO2005040487A1 (en) 2003-10-29 2004-10-28 Method for the modification of polyacrylonitrile fibres containing vinyl acetate as a comonomer and polyamide fibres, using a cutinase enzyme

Publications (1)

Publication Number Publication Date
US20070275453A1 true US20070275453A1 (en) 2007-11-29

Family

ID=34511367

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Application Number Title Priority Date Filing Date
US10/577,012 Abandoned US20070275453A1 (en) 2003-10-29 2004-10-28 Method for the Modification of Polyacrylonitrile Fibres Containing Vinyl Acetate as a Comonomer and Polyamide Fibres, Using a Cutinase Enzyme

Country Status (5)

Country Link
US (1) US20070275453A1 (pt)
EP (1) EP1694903A1 (pt)
CA (1) CA2543818A1 (pt)
PT (1) PT103035A (pt)
WO (1) WO2005040487A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2145904A1 (de) * 2008-07-18 2010-01-20 Basf Se Verfahren zur enzymkatalysierten Hydrolyse von Polyacrylsäureestern sowie dafür zu verwendende Esterasen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5599698A (en) * 1994-12-27 1997-02-04 Montefibre S.P.A. Modified materials based on polyacrylonitrile and process for their production
US6066494A (en) * 1996-03-06 2000-05-23 The Regents Of The University Of California Enzyme treatment to enhance wettability and absorbency of textiles
US6180388B1 (en) * 1995-07-18 2001-01-30 Rhone-Poulenc Fibres Et Polymeres S.A. Enzymes and micro organisms with amidase activity which hydrolyze polyamides

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5599698A (en) * 1994-12-27 1997-02-04 Montefibre S.P.A. Modified materials based on polyacrylonitrile and process for their production
US6180388B1 (en) * 1995-07-18 2001-01-30 Rhone-Poulenc Fibres Et Polymeres S.A. Enzymes and micro organisms with amidase activity which hydrolyze polyamides
US6066494A (en) * 1996-03-06 2000-05-23 The Regents Of The University Of California Enzyme treatment to enhance wettability and absorbency of textiles

Also Published As

Publication number Publication date
CA2543818A1 (en) 2005-05-06
PT103035A (pt) 2005-04-29
WO2005040487A1 (en) 2005-05-06
EP1694903A1 (en) 2006-08-30

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