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
  • D06M11/11—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 halogen acids or salts thereof
• • 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
  • D06M11/40—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table combined with, or in absence of, mechanical tension, e.g. slack mercerising
• • 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
  • D06M11/51—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 sulfur, selenium, tellurium, polonium or compounds thereof
  • D06M11/55—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 sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid 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
  • 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
  • D06M11/51—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 sulfur, selenium, tellurium, polonium or compounds thereof
  • D06M11/55—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 sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
  • D06M11/56—Sulfates or thiosulfates other than of elements of Groups 3 or 13 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
  • D06M11/73—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 carbon or compounds thereof
  • D06M11/75—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 carbon or compounds thereof with phosgene; with compounds containing both carbon and sulfur, e.g. thiophosgene

Definitions

• the invention which consists in a treatment of artificial fibers with these reagents, is applivery much more than this figure.
• a strong mineral acid or strong sulphuric acid (as herein referred to) is to be understood a mineral acid, the mineral acid content, for instance the sulphuric acid content of which, corresponds with that of a sulphuric acid containing at least 50 per cent of H2804.
• the acid can also be stronger, e. g. 70% H2804, more or less, see
• the artificial fiber may be treated with an alka:
• the fiber may be treated first with an alkali solution and then with carbon disulphide, or first with carbon disulphide and then with an alkali solution, or it may be treated with a mixture of carbon disulphide and an alkali solution, which mixture may be an emulsion of carbon disulphide in the alkali solution.
• the danger that the artificial fibers may undergo dissolution or excessive swelling is very slight if the fiber is first ed with an alkali solution, or if the fiber is treated with a mixture, for example an emulsion, of carbon disulphide and alkali solution.
• the fibers are not subjected to tension, or are subjected only to moderate saturated with carbon disulphide and then treattension: if, however, considerable tension be applied during any part of the treatment, it is desirable that the tension should be relieved or diminished at some moment at which a subsequent shrinkage of the fiber still appears possible, preferably before the fiber leaves the alkali solution. or before washing out the alkali.
• the artificial fibers may be subjected to the treatment in accordance with the invention whilst they are in the dry state, 'or whilst they are moist, or wet: thus the invention may, if desired, be introduced into the spinning process, in which case the treatment may be applied to the fibers which leave the spinning bath, or after they leave the bath (for instance water), if any, in which the bobbins rotate, or after the washing operation.
• the treatment may be applied to the fibers which leave the spinning bath, or after they leave the bath (for instance water), if any, in which the bobbins rotate, or after the washing operation.
• the invention is applicable not only to artificial fibers, for example artificial silk, as such (whether in the form of threads, yarn or skeins or-cops, or in the form of warps) but also to artificial fibers (such as artificial silk or staple fiber) in the form of woven material. It is also applicable to fibers or fabrics consisting either,
• Viscose silk made by the process described in application No. 156,751 (which involves the treatment of the freshly formed viscose silk with H2804 of 50% strength, or more, or other acid of equivalent strength), in the form of dried finished (but if desired, unbleached) skeins, is impregnated preferably at room temperature, with carbon disulphide without application of tension, for instance by passing it through a bath containing carbon disulphide, by immersing it in carbon disulphide, or by spraying it with carbon disulphide.
• the carbon disulphide may be used in undiluted form, or in conjunction witha suitable diluent, such as benzene or the like.
• the duration of the treatment with carbon disulphide may be selected as desired.
• the yarn absorbs the requisite quantity of carbon disulphide even during a period of from a few seconds up to two minutes, so that a short impregnating treatment is as a rule sulficient.
• the yarn impregnated with carbon disulphide if desired after separating the excess of carbon disulphide by pressing; centrifuging or the like, is then introduced into a caustic soda solution of 18-20 per cent strength and preferably at a temperature of 15-18 0., and allowed to remain in this soiutior for 1-5 minutes.
• the silk which prior to the treatment above described, showed an extensibility of 4-5 per cent, shows after the treatment an extensibility of 13-18 per cent, whilst its elasticity, which was originally 3.5-4 per cent, is increased by the treatment to 5-6 per cent.
• the lustre oi the silk does not suffer or sufiers only moderately from the treatment.
• Example 2 The procedure is as described in Example 1 m Example 2 with the modification that there s used a caustic soda solution of '10 per cent strength, kept at a temperature of 0 to ---5 0.
• Example 4 The procedure is as described in Example 1, Example 2 or-Example 3, with the modification that the artificial silk is washed with hot or cold water after the treatment with the caustic alkali solution and before it is introduced into the precipitating bath.
• Example 5 Artificial silk in skeins, as used in the preceding examples, is introduced, without applying tension, into an emulsion or mixture, made in known manner of carbon disulphide and caustic soda solution of 18 per cent strength (for example consistingot 10 parts by weight oi' carbon disulphide and 90 parts by weight of the caustic alkali solution), and allowed to remain in this emulsion or mixture for 2 to 10 minutes whilst the temperature is maintained at 15-20" C.
• carbon disulphide and caustic soda solution of 18 per cent strength (for example consistingot 10 parts by weight oi' carbon disulphide and 90 parts by weight of the caustic alkali solution)
• the material is thentreated with acids or the setting baths of the viscose industry, in the manner prescribed in Example 1 for the treatment of the material after its removal from the alkali solution in that example.
• Example 6 Artificial silk in skeinsms used in the preceding examples is introduced, into a caustic soda solution of 18-20 per cent strength at a temperature of 15C., allowed to remain in this solution for about l-5 minutes, and is then removed
• the precedure described in the foregoing examples may be varied, for instance, by using another agent capable of precipitating viscose for ek-- ample steam, instead of the precipitating agents therein named, and by using ordinary viscose silk of any kind, or copper silk (i. e. silk made from cuprammonium solution of cellulose) or nitrate silk, instead of the viscose silk specified therein.
• artificial cellulose fibers is 76 intended to include all artificial fibers consisting of, or containing cellulose or cellulose hydrate, that is, artificial fibers made from viscose, for example viscose silk, artificial fibers made from solution of cellulose in cuprammonia, for example cuprammonia. silk and denitrated cellulose nitrate artificial fibers, for example nitrate silk.
• a process for increasing the extensibility of artificial fibers of regenerated cellulose which process comprises thestep of subjecting the artificial fibers while not in a strongly stretched condition to the joint action of an alkali solution and carbon disulphide and permitting shrinking of the said material to occur.
• a process for increasing the extensibility of artificial fibers of regenerated cellulose which process comprises subjecting the artificial fibers to the joint action of an alkali solution and carbon disulphide and subjecting the fibers to tension during a part only of the entire process which includes said treatment and subsequent washing of the fibers.
• a process of making artificial silk which comprises the steps of spinning viscose into a bath containing a mineral acid of a strength equivalent to not below 50% of actual sulphuric acid, and subjecting the spun silk to the joint action of an alkali solution and carbon disulphide and permitting shrinking of the said material to occur.
• a process of making artificial silk which comprises the steps of spinning viscose in a bath containing not substantially below 50% of sulphuric acid and subjecting the spun silk to the joint action of an alkali solution andcarbon disulphide and permitting shrinking of the said material to occur.
• a process of making artificial silk which comprises the steps of spinning viscose and subjecting same to a bath containing not substantially below 50% of sulphuric acid and subjecting the spun silk to the joint action of an alkali solution and carbon disulphide and permitting shrinking of the said material to occur.
• a process of making artificial thread which comprises the steps of spinning viscose in a bath which consists of mineral acid having a strength equivalent to at least 50% H2804, and subjecting the spun thread to the joint action of an alkali solution and carbon disulphide without substantially stretching during the latter part of such treatment.
• a process of making artificial silk which comprises the steps of spinning viscose in a bath which contains not below 50% of sulphuric acid and subjecting the spun silk to the joint action of an alkali solution and carbon disulphide without substantially stretching during the latter portion of the treatment with alkali solution and carbon disulphide.
• a process of making artificial silk which comprises the steps of spinning viscose, subjecting same to action of a bath containing mineral acid in amount equivalent to at least 50% of H2804, and subjecting the silk to the successive action of an alkali solution and carbon disulphide in any desired order and permitting shrinking of the said material to occur.
• a process of making artificial thread which comprises the steps of spinning viscose in a bath which consists of sulphuric acid of at least 50% strength, subjecting the thread to the joint action of an alkali solution and carbon disulphide and avoiding substantial stretching during the latter portion of the treatment with alkali solution and carbon disulphide.
• a process of treating such artificial cellulosic fibers as have a dry tenacity exceeding 2 grams per denier and which in their untreated condition have a relatively low degree of extensibility which comprises treating such artificial fibers with an alkali solution and carbon disulphide, such steps being in any desired order and permitting shrinking of the said material to occur, whereby the extensibility is increased.
• a process of treatingsuch artificial cellulosic fibers as have a dry tenacity exceeding 2 grams per denier and which is their untreated condition have an extensibility not substantially exceeding 7% which comprises treating such artificial fibers with an alkali solution and carbon disulphide, such steps being in any desired order 'and permitting shrinking of the said material to occur, whereby the extensibility of the fibers is increased.
• a process for increasing the extensibility of regenerated cellulose fibers having a dry tenacity over 2 grams per denier which process'comprises the step of subjecting the artificial fibers to the joint action of an alkali solution and carbon disulphide and permitting shrinking of the said material to occur.
• a process for increasing the extensibility of regenerated cellulose fibers having a dry tenacity over 2 grams per denier which process consists in subjecting the artificial fibers to the successive action of an alkali solution and carbon disulphide and permitting shrinking of the said material to occur.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Artificial Filaments (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10320957

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (1)

• 0
  • NL NL28003D patent/NL28003C/xx active
  • BE BE355400D patent/BE355400A/xx unknown
• 1927
  • 1927-11-21 GB GB31292/27A patent/GB312197A/en not_active Expired
• 1928
  • 1928-09-26 US US308589A patent/US2001621A/en not_active Expired - Lifetime
  • 1928-11-21 FR FR664416D patent/FR664416A/fr not_active Expired

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