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
  • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
  • D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
  • D06M11/30—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with oxides of halogens, oxyacids of halogens or their salts, e.g. with perchlorates
• • 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
  • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
  • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
  • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
  • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
• • 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
  • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
  • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
  • D06M11/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with hydrogen peroxide or peroxides of metals; with persulfuric, permanganic, pernitric, percarbonic acids or their salts
• • 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
  • D06M13/152—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 having a hydroxy group bound to a carbon atom of a six-membered aromatic ring

Definitions

• This invention relates to a process for improving cellulosic materials and more particularly textile fibres, by the action of mixtures of caustic alkalis and other reagents.
• caustic alkali solutions scour and mercerize vegetable fibres, but this action is generally accompanied by a pro nounced browning. It is also known that the .addition to the alkali bath either of methyl or ethyl alcohol, or of soap or sult'oricinates, facilitates the penetration of the alkali into the fibre and increases the rapidity as well as the strength of its action.
• results are obtained in one single operation which are better than those obtained by the several treatments indicated above, by subjecting the fibres or other cellulosic materials to the action of a bath composed of a mixture of caustic alkali and a phenol.
• phenol are hereinto be understood the monovalent- I t1on also gives remarkable results when other or poly'valent phenols and their homologues (cresols etc.).
• the phenol has a special action upon the oxidizing agent, which not only enables agents acting in an acid, or in aneutral medium to be employed (for example permanganates) as well as those which only act in an alkaline medium, but also enables the operation to be extendedto fibres having no bast such as cotton and cellulosic materials in general, with a View to obtainingat the same time as a thorough bleaching, either the lanification or the mercerizing or even the gelatinization of the material.
• agents acting in an acid, or in aneutral medium for example permanganates
• those which only act in an alkaline medium but also enables the operation to be extendedto fibres having no bast such as cotton and cellulosic materials in general, with a View to obtainingat the same time as a thorough bleaching, either the lanification or the mercerizing or even the gelatinization of the material.
• alkaline hypochlorites being considered by Way of example.
• the phenols seem to free a certain quantity of hypochlorous acid from its combination with the metal.
• a certain number of molecules liberated are absorbed by the nearest fibre, the remainder being absorbed ,7
• the quantities of phenol to be employed in the alkali-phenol bath, and the quantities of the other chemical ingredients which may be added thereto, may vary considerably according to the action it is desired to obtain, the conditions of operation, the temperature of the bath, the nature of the ingredients which may be added and above all upon the nature of the material to be treated.
• the duration of the treatment may also be varied. With pure cellulose -the action is almost instantaneous and is complete at the end of about 5 minutes. For fibres incompletely'prepared (i. e.'boiled fibres for example) it may take nearly 2 hours; For certain crude impure fibres half a day or more may be needed.
• the action of the mixture is effective at all temperatures and inpractice the tem nature will be one which is in keeping with t e object in view.
• the operation may be carried out without heat orat a. moderate temperature for mereenzing or lanifying and at a higher temperature for gelatinization.
• the one or the other of these results may be obtained at the same time as bleaching when an oxidizing agent is added to the bath, but the treatment in the alkali-phenol bath may also .be preceded by a separate bleaching, or this ace, the
• treatment may be applied in all cases where use would previously be made of acid or alkaline baths with a view to improving the cellulosic materials.
• the efliciency of the process is enhanced when the alkali present in the bath is in exce of the amount required for forming a phe olate with the phenoL.
• the bath is intended or 'lanifying, mercerizing or gel'atinizing it is desirable that it should contain at least 5% of caustic alkali and at least 1% of phenol.
• the process according to the invention may be applied to the lamfication of jute in the following manner;
• a process of improving vegetable textile fibres consisting in immersing crude

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=3895019

Family Applications (1)

Country Status (2)

Cited By (1)

• 1925
  • 1925-11-09 US US68021A patent/US1726142A/en not_active Expired - Lifetime
• 1926
  • 1926-05-19 FR FR616356D patent/FR616356A/fr not_active Expired

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