CH407031A - Process for improving the mechanical properties of cellulose-containing textiles - Google Patents

Process for improving the mechanical properties of cellulose-containing textiles

Info

Publication number
CH407031A
CH407031A CH8154159A CH8154159A CH407031A CH 407031 A CH407031 A CH 407031A CH 8154159 A CH8154159 A CH 8154159A CH 8154159 A CH8154159 A CH 8154159A CH 407031 A CH407031 A CH 407031A
Authority
CH
Switzerland
Prior art keywords
cellulose
mechanical properties
improving
textile material
containing textiles
Prior art date
Application number
CH8154159A
Other languages
German (de)
Other versions
CH8154159A4 (en
Inventor
Georg Dr Heberlein
Fritz Dr Muenzel
Original Assignee
Heberlein & Co Ag
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
Priority claimed from CH7349659A external-priority patent/CH383325A/en
Application filed by Heberlein & Co Ag filed Critical Heberlein & Co Ag
Priority to CH8154159A priority Critical patent/CH407031A/en
Priority claimed from CH308760A external-priority patent/CH407032A/en
Priority to ES0257771A priority patent/ES257771A1/en
Publication of CH8154159A4 publication Critical patent/CH8154159A4/xx
Publication of CH407031A publication Critical patent/CH407031A/en

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
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/008—Treatment with radioactive elements or with neutrons, alpha, beta or gamma rays

Landscapes

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

Description

  

  Verfahren zur Verbesserung der mechanischen Eigenschaften  von     cellulosehaltigem    Textilgut         Zusatzpatent        zum    Hauptpatent Nr. 383 325    Im     Hauptpatent    ist ein Verfahren zur Verbesse  rung der mechanischen Eigenschaften von     cellulose-          haltigem    Textilgut mit     Hilfe    ionisierender Strahlen  beschrieben.

   Dieses ist dadurch     gekennzeichnet,    dass  ein gegebenenfalls     modifiziertes        cellulosehaltiges     Textilgut in Abwesenheit eines     Modifizierungsmittels     für die     Cellulose    während und/oder nach der Bestrah  lung zum Zwecke     einer        Vernetzung    von     C-Atomen     der     Molekülketten    auf mindestens 30  C erwärmt  wird.  



  Es hat sich nun überraschenderweise gezeigt, dass  besonders günstige Voraussetzungen für die Vernet-         zung    und einen möglichst geringen Abbau der     Cellu-          lose    bestehen, wenn das zu bestrahlende     cellulose-          haltige    Textilgut einen erhöhten Feuchtigkeitsgehalt  aufweist.  



  Die vorliegende Erfindung     besteht    demnach in  einer Weiterentwicklung des Verfahrens nach dem  Hauptpatent und ist dadurch gekennzeichnet, dass  das zu bestrahlende     Textilmaterial        mindestens    20 %,  vorzugsweise 30 bis 40% relative     Feuchtigkeit    auf  weist. Die erfindungsgemässe Massnahme wirkt sich  insbesondere bei der     Durchführung    der     Bestrahlung     in Gegenwart von Luft     günstig    aus.

      <I>Beispiel 1</I>    Ein in üblicher Weise vorbehandeltes     Baumwoll-          Imitat-Popeligewebe,    welches eine relative Feuch  tigkeit von 35 % aufweist, wird in Gegenwart von Luft  der Einwirkung einer     Gammastrahlungsquelle        (60C0)     ausgesetzt und eine Gesamtdosis von 6 X 105 Rönt  gen in das Gewebe eingestrahlt; hierauf wird es  mittels eines warmen Luftstroms während     etwa    5    Minuten auf 80  C erhitzt.

   Das behandelte Gewebe  ist unlöslich, aber noch     quellbar    in     einer    üblichen       Kupferoxydammoniaklösung    und weist - verglichen  mit dem Ausgangsmaterial - eine stark erhöhte       Widerstandsfähigkeit    gegenüber     Scheuerung    und eine  nur wenig verminderte Reissfestigkeit auf.

      <I>Beispiel 2</I>    Ein in üblicher Weise vorbehandeltes     Baum-          woll-Renforc6gewebe,    welches     eine        relative    Feuchtig  keit von 40% aufweist, wird in Gegenwart von Luft  einer     Gammastrahlungsquelle        (50C0)    ausgesetzt und  eine Gesamtdosis von 8 X 105 Röntgen in das Ge  webe eingestrahlt; hierauf wird es während 5 Minu  ten durch Behandlung im kochenden Wasser erhitzt.

      Das Gewebe ist nach dieser Behandlung unlöslich,  aber noch     quellbar    in einer üblichen Kupferoxyd  ammoniaklösung und weist - verglichen mit dem  Ausgangsmaterial eine stark erhöhte Widerstands  fähigkeit gegenüber     Scheuerung    auf, bei nur wenig  verminderter     Reissfestigkeit.  



  Process for improving the mechanical properties of cellulose-containing textiles Additional patent to main patent no. 383 325 The main patent describes a process for improving the mechanical properties of cellulose-containing textiles with the aid of ionizing radiation.

   This is characterized in that an optionally modified cellulose-containing textile material is heated to at least 30 ° C. in the absence of a modifying agent for the cellulose during and / or after irradiation for the purpose of crosslinking carbon atoms of the molecular chains.



  It has now been shown, surprisingly, that there are particularly favorable conditions for crosslinking and the lowest possible degradation of the cellulose when the cellulose-containing textile material to be irradiated has an increased moisture content.



  The present invention therefore consists in a further development of the method according to the main patent and is characterized in that the textile material to be irradiated has at least 20%, preferably 30 to 40% relative humidity. The measure according to the invention has a particularly favorable effect when the irradiation is carried out in the presence of air.

      <I> Example 1 </I> A conventionally pretreated cotton imitation fluffy fabric, which has a relative humidity of 35%, is exposed to a gamma radiation source (60C0) in the presence of air and a total dose of 6 X 105 X-rays irradiated into the tissue; it is then heated to 80 ° C. for about 5 minutes by means of a stream of warm air.

   The treated fabric is insoluble, but still swellable in a conventional copper oxide ammonia solution and has - compared to the starting material - a greatly increased resistance to abrasion and an only slightly reduced tear resistance.

      <I> Example 2 </I> A conventionally pretreated cotton Renforc6 fabric, which has a relative humidity of 40%, is exposed to a gamma radiation source (50C0) in the presence of air and a total dose of 8 × 10 5 X-rays in irradiated the tissue; then it is heated for 5 minutes by treatment in boiling water.

      After this treatment, the fabric is insoluble, but still swellable in a conventional copper oxide ammonia solution and has - compared to the starting material, a greatly increased resistance to abrasion, with only slightly reduced tear strength.

Claims (1)

PATENTANSPRÜCHE I. Verfahren zur Verbesserung der mechanischen Eigenschaften von cellulosehaltigem Textilgut nach dem Patentanspruch<B>1</B> des Hauptpatentes, dadurch gekennzeichnet, dass das zu behandelnde Textilmate rial mindestens 20 % relative Feuchtigkeit aufweist. II. Cellulosehaltiges Textilgut mit verbesserten mechanischen Eigenschaften, erhalten nach dem Ver fahren gemäss Patentanspruch I. UNTERANSPRÜCHE 1. PATENT CLAIMS I. A method for improving the mechanical properties of cellulosic textile material according to claim <B> 1 </B> of the main patent, characterized in that the textile material to be treated has at least 20% relative humidity. II. Cellulose-containing textile material with improved mechanical properties, obtained according to the method according to patent claim I. SUBClaims 1. Verfahren nach Patentanspruch I, dadurch ge kennzeichnet, dass das zu behandelnde Textilmaterial 30 bis 40 % relative Feuchtigkeit aufweist. 2. Verfahren nach Patentanspruch I, dadurch ge- kennzeichnet, dass die Bestrahlung des Textilgutes in Gegenwart von Luft erfolgt. Method according to claim 1, characterized in that the textile material to be treated has 30 to 40% relative humidity. 2. The method according to claim I, characterized in that the irradiation of the textile material takes place in the presence of air.
CH8154159A 1959-05-21 1959-12-07 Process for improving the mechanical properties of cellulose-containing textiles CH407031A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH8154159A CH407031A (en) 1959-05-21 1959-12-07 Process for improving the mechanical properties of cellulose-containing textiles
ES0257771A ES257771A1 (en) 1959-05-21 1960-04-30 A procedure to improve cellulostic textile material (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH7349659A CH383325A (en) 1959-05-21 1959-05-21 Process for improving the mechanical properties of cellulose-containing textiles
CH8154159A CH407031A (en) 1959-05-21 1959-12-07 Process for improving the mechanical properties of cellulose-containing textiles
CH308760A CH407032A (en) 1960-03-18 1960-03-18 Process for improving the mechanical properties of cellulose-containing textile material
CH486760A CH400993A (en) 1959-05-21 1960-04-29 Process for improving the mechanical properties of cellulose-containing textiles

Publications (2)

Publication Number Publication Date
CH8154159A4 CH8154159A4 (en) 1965-06-15
CH407031A true CH407031A (en) 1966-08-31

Family

ID=31982413

Family Applications (1)

Application Number Title Priority Date Filing Date
CH8154159A CH407031A (en) 1959-05-21 1959-12-07 Process for improving the mechanical properties of cellulose-containing textiles

Country Status (1)

Country Link
CH (1) CH407031A (en)

Also Published As

Publication number Publication date
CH8154159A4 (en) 1965-06-15

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