CH407031A - Process for improving the mechanical properties of cellulose-containing textiles - Google Patents
Process for improving the mechanical properties of cellulose-containing textilesInfo
- 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
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)
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) |
-
1959
- 1959-12-07 CH CH8154159A patent/CH407031A/en unknown
Also Published As
Publication number | Publication date |
---|---|
CH8154159A4 (en) | 1965-06-15 |
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