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
  • D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
  • D04H1/4282—Addition polymers
  • D04H1/4309—Polyvinyl alcohol
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
• • 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
  • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters 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
  • 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
  • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
• • 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
  • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D06M15/31—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated nitriles
• • 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
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
  • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
  • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
  • G01R27/18—Measuring resistance to earth, i.e. line to ground

Definitions

• lany methods for the production of non-woven sheet structures from fibers are known and are in technical use. It is essential thereby that the single fibers adhere sufilciently to one another, which can be brought about by diiierent methods.
• One of them consists in the use of swellable fibers on the basis or" e.g. polyvinyl alcohol per se or in combination with other common non-swellable fibers.
• the sheet structures made in this way are not, however, resistant to boiling and chlorine-releasing bleaching agents since the polyvinyl alcohol fibers dissolve in hot water.
• polyvinyl alcohol containing structures can be made resistant to washing, boiling and chlorine-releasing bleaching agents by after-impregnating non woven sheet material containing polyvinyl alcohol fibersthe former being made according to any of the known methods-with a mixture of an aminopiast and a polymer containing active radicals, such as CN, COOH or NH
• Suitable aminoplasts are cg. di-methylol-thio-urea, dirnethylol-dihydroxy-ethylene-urea and trimethylolmelamine.
• Suitable -CN, -COOH or Nl-l containing polymers are methacrylic acid, acrylic acid, arcylonitrile, acryloamide and copolymers thereof.
• the above named components are dissolved in a solvent such as water or alcohol.
• the solvent should be present in abundance, since concentrated solutions would change the character of the material to i be treated. It has been found that 15% solutions of the above mentioned compositions cause the desired effect Without impairing the appearance, hand, softness etc. of the starting fiber batt.
• the sheet material containing polyvinly alcohol fibers is then impregnated with said solution as described in the following examples.
• Example 1 A fiber batt weighing 4-0 grams per square meter consisting of Percent Viscous rayon 90 Watersoluble polyvinyl alcohol fibers 10 is impregnated in a padding mangle with water until a wet pick up of 200 percent is reached, then dried in a felt calender and thereby stabilized.
• This stabilized fibrous sheet material is then impregnated in a padding mangle with a solution consisting of Percent Water 97.9 Ammoniumoxalate (catalyst) 0.1
• the impregnated sheet material is then squeezed off 3,llh,lh3 Patented Dec. 31, 1%53 pregnated with water in the same way as in Example 1, prestabilized in a felt-calender and then impregnated with a solution consisting of Percent Water 96.5 Trimetliylol-mclamine 1.5
• Copolymer which consists of 50 parts by weight of methacrylic acid butylic ester, 15 parts by Weight of methacrylic acid methylester and 35 parts by Weight of methacrylic acid (commercially available as Plextol) The further steps are the same as in Example 1.
• Example 3 A fiber batt made and prestabilized as described in Example 1 is impregnated with a solution consisting of Percent Methyl alcohol 97.9 Zinc chloride (catalyst) 0.1 Dimethylol-urea 1.0 Acrylic acid 1.0
• Example 2 The further steps are the same as in Example 1.
• the resulting non-woven fabric is not so soft as that of the preceding examples where the acrylic acid has been replaced by Perbunan or Plextol.
• Example 4 A fiber batt made and prestabilized as described in Example 1 is impregnated with a solution consisting of 98.0 percent water 1.0 percent dimcthylol-dihydroxy-ethylene-urea 1.0 percent of a copolymer which consists of 70 percent methacrylic acid butylester, 20 percent acrylamide and 10 percent methacrylic acid methylester.
• the acryloamide is partially methylated. (The copolymer is being sold as Acronal.)
• Example 5 A fiber batt made and prestabilized as described in Example 1 is impregnated with a solution consisting of 95.7 percent water 0.3 percent aluminum chloride 2.0 percent of a copolymer consisting of equal parts of methacryli-c butylester and acrylonitrile.
• a process for rendering non-woven fabric containing water soluble polyvinyl alcohol fibers resistant to the action of hot water and chlorine-releasing agents which comprises impregnating such non-woven fabric with a 1 to 5% solution of substantially equal amounts of a member selected from the group consisting of dimethylolurea, trimethylol-melamine, and dimethylol-dihydroxyethylene urea and of a member selected from the group consisting of: copolymers of acrylonitrile, methacrylic acid, and butadiene, copolymers of mcthacrylic acid butylic ester, methacrylic acid methylester, and methacrylic acid, copolymers of methacrylic acid butyl ester, acrylamide, and methacrylic acid methyl ester, copolymers of methacrylic butyl ester and acrylonitrile and polymers of acrylic acid for a wet pick-up of about 100%, and thereafter subjecting the impregnated fabric to temperatures of about 150 C.
• a process for rendering non-Woven fabrics containing water soluble polyvinyl alcohol fibers resistant to the action of hot Water and chl0rine-releasing agents which comprises impregnating said non-woven fabric with a 15% solution composed of 97.9% Water,
• a process for rendering non-woven fabrics containing water soluble polyvinyl alcohol fibers resistant to the action of hot water and chlorine-releasing agents which comprises impregnating said non-woven fabric with a 15% solution composed of 96.5% water,
• a process for rendering non-woven fabrics containing water soluble polyvinyl alcohol fibers resistant to the action of hot water and chlorine-releasing agents which comprises impregnating said non-woven fabric with a 15% solution composed of 97.9% methyl alcohol,
• a process for rendering non-woven fabrics containing water soluble polyvinyl alcohol fibers resistant to the action of hot Water and chlorine-releasing agents which comprises impregnating said non-woven fabric with a 15% solution composed of 98% water,
• a process for rendering non-woven fabrics containing water soluble polyvinyl alcohol fibers resistant to the action of hot water and chlorine-releasing agents which comprises impregnating said non-Woven fabric with a 1-5% solution composed of 97.5% water,
• a washable, high-temperature, chlorine-resistant, non-Woven fabric comprising a fabric containing Watersoluble polyvinyl alcohol fibers which has been impregnated with a 1 to 5% solution of substantially equal amounts of a member selected from the group consisting f dimethylol-urea, trimethylol-melamine, and dimethylol dihydroxy ethylene urea, and a member selected from the group consisting of polymers of acrylic acid, copolymers of acrylonitrile, methacrylic acid, and butadiene, copolymers of methacrylic acid butylic ester, methacrylic acid methylester, and methacrylic acid, copolymers of methacrylic acid butyl ester, acryiamide, and methacrylic acid methylester, and copolymers of methacrylic butyl ester, and acrylonitrile for a wet pick-up of about 100%, and thereafter subjected to a temperature of about C. whereby said polymers

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)
• Nonwoven Fabrics (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7092305

Family Applications (1)

Country Status (8)

Cited By (1)

Citations (6)

Family Cites Families (2)

• 0
  • NL NL245669D patent/NL245669A/xx unknown
  • BE BE585042D patent/BE585042A/xx unknown
• 1955
  • 1955-06-01 GB GB15709/55A patent/GB809003A/en not_active Expired
• 1958
  • 1958-11-28 DE DEF27138A patent/DE1107183B/de active Pending
• 1959
  • 1959-11-18 CH CH8076159A patent/CH367794A/de unknown
  • 1959-11-23 GB GB39606/59A patent/GB879003A/en not_active Expired
  • 1959-11-23 US US854616A patent/US3116163A/en not_active Expired - Lifetime
  • 1959-11-26 FR FR811284A patent/FR1245087A/fr not_active Expired
• 1967
  • 1967-07-24 SE SE1115559A patent/SE220090C1/sv unknown

Patent Citations (6)

Also Published As

Similar Documents