DE338437C - Process for increasing the tensile strength of fibers - Google Patents
Process for increasing the tensile strength of fibersInfo
- Publication number
- DE338437C DE338437C DE1920338437D DE338437DD DE338437C DE 338437 C DE338437 C DE 338437C DE 1920338437 D DE1920338437 D DE 1920338437D DE 338437D D DE338437D D DE 338437DD DE 338437 C DE338437 C DE 338437C
- Authority
- DE
- Germany
- Prior art keywords
- fibers
- tensile strength
- increasing
- strength
- calcium chloride
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
- D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
Verfahren zur Erhöhung der Zerreißfestigkeit von Fasern. Verschiedene in der Natur vorkommende Fasern haben bisher infolge ihrer Brüchigkeit keine Verwendung als selbständige Spinnfasern finden können. Sie müssen entweder mit anderem Fasergut gemischt werden, oder man muß mit erheblichen Verlusten rechnen, wenn man sie allein verspinnen will. Außerdem sind die aus solchen Fasern erhaltenen Garne spröde und brüchig.Process for increasing the tensile strength of fibers. Different Naturally occurring fibers have so far not been used due to their fragility as independent staple fibers. You have to either use other fiber material mixed up, or you can expect significant losses if you do them alone want to spin. In addition, the yarns obtained from such fibers are brittle and brittle.
Es hat sich nun gezeigt; daß bei der Behandlung solcher Fasern mit Lösungen von Chlormagnesium, Chlorkalzium oder Gemischen dieser Salze mit oder ohne alkalische Vorbehandlung die Zerreißfestigkeit bedeu-. tend höher wird, so daß derartige Fasern als selbständige ,Spinnfasern verarbeitet werden können. Solche Fasern sind z. B. Samenhaare von Kapok, Asclepias, Typha, manche Pappelarten, ferner die Sporangienträger gewisser Schimmelpilze, wie z. B. Phycomyces nitens.It has now been shown; that when treating such fibers with Solutions of magnesium chloride, calcium chloride or mixtures of these salts with or without alkaline pretreatment means the tensile strength. tend to be higher, so that such Fibers as independent, staple fibers can be processed. Such fibers are z. B. seed hairs of Kapok, Asclepias, Typha, some poplar species, also the sporangia carriers certain molds, such as B. Phycomyces nitens.
Es ist bekannt, Chlormagnesium und Chlorkalzium als Appreturmittel anzuwenden (vgl. z. B. W a 1 1 a n d , Kenntnis der Wasch-, Bleich- und Appreturmittel, Berlin 1913, S. 258 Mitte). Diese Salze werden angewandt, um die zugleich als Appreturmittel aufgebrachte Stärke geschmeidig zu erhalten. Bei vorliegendem Verfahren wird dagegen die Zerreißfestigkeit von Fasern erhöht, die unbehandelt so brüchig sind, daß sie nicht versponnen werden können.It is known to use magnesium chloride and calcium chloride as finishing agents to be used (see e.g. W a 1 1 a n d, knowledge of washing, bleaching and finishing agents, Berlin 1913, p. 258 center). These salts are used at the same time as finishing agents to keep the applied starch supple. In the present procedure, however, is increases the tensile strength of fibers which, if left untreated, are so brittle that they are cannot be spun.
Beispiel i.Example i.
Kapokfasern werden zunächst eine Stunde lang in etwa o,5 prozentiger heißer Natronlauge getränkt, dann mit heißem Wasser gespülte bis das Alkali möglichst vollständig entfernt ist. Nach Entfernung des überschüssigen Wassers durch Absaugen oder Schleudern wird das Fasergut etwa eine Stunde lang mit einer heißen Chlormagnesiumlösung von 3 ° Be behandelt, wieder von der überschüssigen Flüssigkeit befreit und bei gewöhnlicher oder mäßig erhöhter Temperatur getrocknet. Die Festigkeit der Einzelfasern wird durch diese Behandlung sehr stark erhöht. Fasern, die im Rohzustand auf i cm Länge eine Festigkeit von höchstens o,5 g zeigten, wurden at@f eine Festigkeit von bis zu 5 g gebracht.Kapok fibers initially become about 0.5 percent stronger for an hour Soaked in hot caustic soda, then rinsed with hot water until the alkali is possible is completely removed. After removing the excess water by suction The fiber material is spun for about an hour with a hot chlorine magnesium solution treated by 3 ° Be, freed again from the excess liquid and at dried at an ordinary or moderately elevated temperature. The strength of the individual fibers is greatly increased by this treatment. Fibers, which in the raw state to i cm Length showed a strength of at most 0.5 g, at @ f a strength of brought up to 5 g.
Beispie12. Sporangienträger des Schimmelpilzes Phycomyces nitens werden eine Stunde in, einer heißen Chlorkalziumlösung von 3° Be behandelt, von der überschüssigen Fliissigkeit befreit und bei Zimmertemperatur getrocknet. Während die unbehandelte Faser eine Festigkeit bis zu höchstens 1,5 g auf i cm Länge zeigt, wurden bei den behandelten Fasern I#'estigkeiten bis zu 9 g beobachtet.Example12. Become a sporangia carrier of the Phycomyces nitens mold treated for one hour in a hot calcium chloride solution of 3 ° Be, of the excess Liquid freed and dried at room temperature. While the untreated Fiber shows a strength of up to a maximum of 1.5 g per 1 cm length, were in the treated fibers strengths of up to 9 g were observed.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE338437T | 1920-05-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE338437C true DE338437C (en) | 1921-06-18 |
Family
ID=6222559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1920338437D Expired DE338437C (en) | 1920-05-09 | 1920-05-09 | Process for increasing the tensile strength of fibers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE338437C (en) |
-
1920
- 1920-05-09 DE DE1920338437D patent/DE338437C/en not_active Expired
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