DE866335C - Process for upgrading cellulose and cellulose hydrate textiles - Google Patents

Process for upgrading cellulose and cellulose hydrate textiles

Info

Publication number
DE866335C
DE866335C DEB6134D DEB0006134D DE866335C DE 866335 C DE866335 C DE 866335C DE B6134 D DEB6134 D DE B6134D DE B0006134 D DEB0006134 D DE B0006134D DE 866335 C DE866335 C DE 866335C
Authority
DE
Germany
Prior art keywords
cellulose
textiles
formaldehyde
upgrading
zinc 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
Application number
DEB6134D
Other languages
German (de)
Inventor
Fritz Dr Siefert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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
Application filed by BASF SE filed Critical BASF SE
Priority to DEB6134D priority Critical patent/DE866335C/en
Application granted granted Critical
Publication of DE866335C publication Critical patent/DE866335C/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/12Aldehydes; Ketones
    • D06M13/127Mono-aldehydes, e.g. formaldehyde; Monoketones
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/423Amino-aldehyde resins

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

Verfahren zum Veredeln von Cellulose und Cellulosehydrattextilgut Es ist bekannt, Textilien, insbesondere solche aus regenerierter Cellulose, durch Behandeln mit Formaldehyd oder mit wasserlöslichen Methylolverbindungen des Harnstoffs unter Zusatz saurer Katalysatoren zu veredeln. Als saure Katalysatoren wurden organische oder schwache anorganische Säuren vorgeschlagen; diese wirken aber nur ungenügend stark katalytisch. Die wirksameren starken anorganischen Säuren oder deren hydrolysierbare Salze, die man weiterhin vorgeschlagen hat, haben den Nachteil, daß bei ihrer Verwendung eine Faserschädigung nur auf umständliche Weise hintangehalten oder ganz vermieden werden kann.Process for upgrading cellulose and cellulose hydrate textiles It is known that textiles, in particular those made of regenerated cellulose, by Treatment with formaldehyde or with water-soluble methylol compounds of urea to refine with the addition of acidic catalysts. The acidic catalysts used were organic or weak inorganic acids suggested; But these only work inadequately strongly catalytic. The more effective strong inorganic acids or their hydrolyzable ones Salts that have also been proposed have the disadvantage that when they are used fiber damage was only held back in a cumbersome way or avoided entirely can be.

Man hat ferner vorgeschlagen, Viiskosekunstseidengewebe mit Quellungsmitteln und mit Formaldehyd zu behandeln, wobei man als Behandlungsbad auch eine kalte Lösung verwendet hat, die im Liter Zoo ccm 3o%igen Formaldehyd und 2o ccm Zinkchlorid von 5oP' Be enthielt.It has also been proposed to use viscose rayon fabric with swelling agents and to treat with formaldehyde, whereby a cold solution is also used as the treatment bath has used the 3o% formaldehyde and 2o ccm of zinc chloride in a liter of zoo 5oP 'Be contained.

Es wurde nun gefunden, daß man Cellulose- oder Cellulosehydrattextilgut in vorzüglicher Weise veredeln kann, wenn man sie mit wäßrigen Bädern behandelt, die bis zu etwa 2,5 % Formaldehyd in freier Form oder in Form von wasserlöslichen Methylolverbindungen des Harnstoffs und höchstens 5 % Zinkchlorid enthalten, trocknet und einer Nachbehandlung in der Wärme unterwirft.It has now been found that cellulose or cellulose hydrate textiles can be used can be refined in an excellent way if you treat them with aqueous baths, up to about 2.5% formaldehyde in free form or in the form of water-soluble Methylol compounds of urea and contain a maximum of 5% zinc chloride, dries and subjected to an after-treatment in the heat.

Durch diese Behandlung erfährt das Textilgut eine sehr gute Verbesserung des Einsprungs und Verminderung des Ouellvermögens sowie eine erhebliche Steigerung der Naß- und Trockenfestigkeit. Die.Dehnbarkeit der Fasern wird nicht oder nur wenig verschlechtert, die Trockenscheuerfestigkeit meistens, die Naßscheuerfestigkeit !stets erheblich gesteigert.As a result of this treatment, the textile material experiences a very good improvement of the entry and reduction of the source capacity as well as a substantial Increase in wet and dry strength. The stretchability of the fibers is not or only slightly deteriorated, the dry abrasion resistance mostly, the wet abrasion resistance ! always increased considerably.

Infolge der günstigen Dehnungseigenschaften der behandelten Fasern ist auch ihre Knickbruchfestigkeif und die Schlingenfestigkeit hervorragend. Vor allem aber ist die mit wasserlöslichen Methylolverbindungen des Hamstoffs erzielte Veredelung bei Verwendung verdünnter wäßriger Lösungen von Zinkchlorid also Katalysator bemerkenswert waschecht.As a result of the favorable elongation properties of the treated fibers its buckling strength and loop strength is also excellent. before Above all, however, is that achieved with water-soluble methylol compounds of urea Refinement when using dilute aqueous solutions of zinc chloride, i.e. a catalyst remarkably washfast.

Gegenüber der obenerwähnten bekannten Verwendung stärkerer Formaldehydlösungen in Verbindung mit Zinkchlorid als Quellungsmittel ist es überraschend, daß man, bei Verwendung erheblich geringerer Mengen Formaldehyd in freier Form oder in Form wasserlöslicher Methylolverbindungen des Harnstoffs eine hervorragende Veredelung des Textilgutes erzielt, ohne daß Quellungserscheinungen zu bemerken sind; auch die große Ersparnis an Formaldehyd und die Vermeidung stärkerer Belästigung durch Förmaldehyddämpfe sind ein Vorteil des vorliegenden Verfahrens. .Beispiels Zellwollgewebe wird mit einer wäßrigen Lösung, die im Liter 5o g Dimethylolharnstoff und 25g Zinkchlorid enthält; foulardmäßig imprägniert, bei 8o° getrocknet und dann 5 Minuten auf 12o'° erhitzt. Man erhält eine vorzüglich waschecht, quellfest ausgerüstete Ware. , Beispiele Man behandelt Zellwollfasern 5 Minuten lang mit einer wäßrigen Lösung, die im Liter 5o g einer 30%igen wäßrigen Formaldehydlösung und 25 g Zinkchlorid enthält, schleudert dann auf etwa 100% Feuchtigkeitsgehalt ab und trocknet 1 Stunde lang bei z20°' in einem (Raum mit starker Luftzirkulation.Compared to the above-mentioned known use of stronger formaldehyde solutions in connection with zinc chloride as a swelling agent, it is surprising that when using significantly smaller amounts of formaldehyde in free form or in form water-soluble methylol compounds of urea are an excellent refinement of the textile material achieved without any noticeable swelling phenomena; even the great savings in formaldehyde and the avoidance of greater nuisance through Formaldehyde vapors are an advantage of the present process. Example of viscose tissue is with an aqueous solution containing 5o g of dimethylolurea and 25g of zinc chloride per liter contains; Impregnated like a padding, dried at 80 ° and then at 12 ° for 5 minutes heated. An extremely washable, swell-resistant product is obtained. , Examples One treats viscose wool fibers for 5 minutes with an aqueous solution, which per liter Contains 50 g of a 30% strength aqueous formaldehyde solution and 25 g of zinc chloride, centrifuges then down to about 100% moisture content and dry for 1 hour at 20 ° 'in a (room with strong air circulation.

Das so behandelte Fasergut zeigt eine um etwa 30% geringere "Wasseraufnahmefähigkeit als unbehandelte Ware. Die Trockenreißfestigkeit und die Verspinnbarkeit :sind unverändert, die Naßfestigkeit ist erheblich verbessert.The fiber material treated in this way shows an "water absorption capacity" which is about 30% lower as untreated goods. The dry tensile strength and the spinnability: are unchanged, the wet strength is considerably improved.

Claims (1)

PATENTANSPRUCH: Verfahren zum Veredeln von Cellulose- und Cellulosehydrattextilgut mit wäßrigen Lösungen, die Formaldehyd und Zinkchlorid enthalten, dadurch gekennzeichnet, daß man es mit wäßrigen Bädern behandelt, die bis zu etwa :2,5 % Formaldehyd in freier Form oder in Form von wasserlöslichen Methylolverbindungen des Harnstoffs und höchstens 5 % Zinkchlorid enthalten, trocknet und dann einer Nachbehandlung in der Wärme unterwirft. Angezogene Druckschriften: Französische Patentschrift Nr. 82q:969. PATENT CLAIM: Process for refining cellulose and cellulose hydrate textiles with aqueous solutions containing formaldehyde and zinc chloride, characterized in that it is treated with aqueous baths containing up to about: 2.5% formaldehyde in free form or in the form of water-soluble methylol compounds of the urea and a maximum of 5% zinc chloride, dried and then subjected to a post-treatment in the heat. References: French Patent No. 82q: 969.
DEB6134D 1942-11-14 1942-11-14 Process for upgrading cellulose and cellulose hydrate textiles Expired DE866335C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB6134D DE866335C (en) 1942-11-14 1942-11-14 Process for upgrading cellulose and cellulose hydrate textiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB6134D DE866335C (en) 1942-11-14 1942-11-14 Process for upgrading cellulose and cellulose hydrate textiles

Publications (1)

Publication Number Publication Date
DE866335C true DE866335C (en) 1953-02-09

Family

ID=6954400

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB6134D Expired DE866335C (en) 1942-11-14 1942-11-14 Process for upgrading cellulose and cellulose hydrate textiles

Country Status (1)

Country Link
DE (1) DE866335C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR824969A (en) * 1936-08-01 1938-02-21 Process for treating textile materials in natural or regenerated cellulose

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR824969A (en) * 1936-08-01 1938-02-21 Process for treating textile materials in natural or regenerated cellulose

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