AT142784B - Process for pickling animal fibers, in particular hair for felt production, preferably hat felt production. - Google Patents
Process for pickling animal fibers, in particular hair for felt production, preferably hat felt production.Info
- Publication number
- AT142784B AT142784B AT142784DA AT142784B AT 142784 B AT142784 B AT 142784B AT 142784D A AT142784D A AT 142784DA AT 142784 B AT142784 B AT 142784B
- Authority
- AT
- Austria
- Prior art keywords
- felt production
- pickling
- hair
- animal fibers
- hydrogen peroxide
- Prior art date
Links
- 210000004209 hair Anatomy 0.000 title claims description 13
- 238000005554 pickling Methods 0.000 title claims description 8
- 239000000835 fiber Substances 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 23
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims description 10
- 150000002736 metal compounds Chemical class 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 4
- 238000011282 treatment Methods 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 150000002730 mercury Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000009963 fulling Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910001987 mercury nitrate Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- DRXYRSRECMWYAV-UHFFFAOYSA-N nitrooxymercury Chemical compound [Hg+].[O-][N+]([O-])=O DRXYRSRECMWYAV-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 150000003606 tin compounds Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Chemical Or Physical Treatment Of Fibers (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zum Beizen von tierischen Fasern, insbesondere Haaren für die Filzherstellung, vorzug- weise Hutfilzherstellung.
Die Rohmaterialien der Hutfilzindustrie, wie insbesondere Haare, werden zur Erhöhung der Walk- fähigkeit mit Salpetersäure und Quecksilbernitrat gebeizt. Alle Versuche, die giftigen Quecksilbersalze durch andere nicht giftige Metallsalze zu ersetzen, haben bisher zu keinem Erfolg geführt. Man hat auch an Metallsalzen freie Beizen versucht, bei welchen das Haar einer Beizung mit oxydierenden Stoffen, wie Salpetersäure, Wasserstoffsuperoxyd od. dgl., unterworfen wird. Mit Salpetersäure konnte wohl eine Walkfähigkeit der Haare erzielt werden, aber bei der hiefür erforderlichen Salpetersäurekonzentration wurden die Haare, abgesehen von der starken Angilbung bzw. Gelbfärbung, spröde und brüchig. Auch
Wasserstoffsuperoxyd und andere sauerstoffabspaltende Stoffe führten zu keinem Erfolg.
Es ist auch vorgeschlagen worden zum Beizen von Haar, um es walkfähig zu machen, dasselbe mit Wasserstoffsuperoxyd und einem als Sauerstoffüberträger dienenden Salz mit Ausschluss von Queck- silbersalzen in neutraler oder saurer Lösung gegebenenfalls im Verein mit Salpetersäure zu behandeln (Österr. Patentschrift Nr. 118442).
Die vorliegende Erfindung geht davon aus, dass für die Erzielung einer guten Beizwirkung die
Einführung einer gewissen Mindestmenge von Metallsalzen in die Faser unerlässlich ist.
Bei dem den Gegenstand der Erfindung bildenden Verfahren wird mit Metallverbindungen, die nicht als Sauerstoff Überträger wirksam sind, im Verein mit Wasserstoffsuperoxyd und Salpetersäure gebeizt. Die Verwendung derartiger Metallverbindungen im Verein mit Wasserstoffsuperoxyd und Salpetersäure, wobei durch letztere auch der Zerfall von Wasserstoffsuperoxyd verlangsamt wird, ermöglicht die Verwendung weit grösserer Mengen von Metallverbindungen als für eine katalytisehe Zersetzung des Wasserstoffsuperoxyds erforderlich wäre, ohne dass eine zu heftige Oxydation der Haare bzw. eine vorzeitige Zersetzung des Wasserstoffsuperoxyds eintreten kann.
Zweckmässig ist die Verwendung solcher Metallverbindungen, die leicht von der Faser aufgenommen werden, wie Zink-, Zinnverbindungen u. dgl. Ausgeschlossen soll hiebei die Anwendung von Aluminiumverbindungen sein.
Bei Ausführung des Verfahrens werden die Metallverbindungen in grösseren als katalytisch wirkenden Mengen, zweckmässig in Mengen von über 10%, angewendet. Die Salpetersäuremengen müssen so gross gehalten werden, dass eine Hydrolyse von Metallverbindungen nicht oder nur in untergeordnetem Masse eintritt. Durch die Einführung solcher Metallmengen in die Faser wird die Brüehigkeit bzw.
Sprödigkeit der oxydierten Haare aufgehoben, das Altern der gebeizten Haare beschleunigt und eine gute Walkfähigkeit bzw. elastischer und weicher Griff erzielt.
Die Erfindung ermöglicht den Ersatz der üblichen giftigen Queeksilbersalze durch andere Metalle bzw. Metallverbindungen.
Bei dem Verfahren gemäss der Erfindung kann die Faser entweder zuerst der Behandlung mit Wasserstoffsuperoxyd und nachher der Metallbehandlung oder umgekehrt oder beiden Behandlungen gleichzeitig unterworfen werden, wobei die verwendeten Wasserstoffsuperoxydmengen und Metallmengen je nach der erwünschten Beizwirkung geregelt bzw. gegenseitig eingestellt werden können.
Das Verfahren gemäss der Erfindung kann auch für das Beizen von Wolle, insbesondere von schlecht walkenden Wollsorten und Wollabfällen, verwendet werden.
Beispiel :
Die Felle bzw. Haare werden in der üblichen Weise mit einer Beize behandelt, die pro Liter zirka 200 g Zinknitrat, 20 ecm Salpetersäure (400 Bé) und je nach Qualität und Beizung 80-120 wu Wasserstoffsuperoxyd (30%) enthält.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for pickling animal fibers, in particular hair for felt production, preferably hat felt production.
The raw materials used in the hat felt industry, such as hair in particular, are stained with nitric acid and mercury nitrate to increase their full ability. All attempts to replace the toxic mercury salts with other non-toxic metal salts have so far been unsuccessful. Attempts have also been made to stain the hair free of metal salts, in which the hair is subjected to staining with oxidizing substances such as nitric acid, hydrogen peroxide or the like. With nitric acid it was possible to achieve a fulling ability of the hair, but at the nitric acid concentration required for this, the hair became brittle and brittle, apart from the strong yellowing or yellowing. Also
Hydrogen peroxide and other oxygen-releasing substances were unsuccessful.
It has also been proposed to stain hair in order to make it workable, to treat it with hydrogen peroxide and a salt serving as an oxygen carrier with the exclusion of mercury salts in neutral or acidic solution, if necessary in combination with nitric acid (Austrian Patent No. 118442 ).
The present invention assumes that in order to achieve a good pickling effect
Introducing a certain minimum amount of metal salts into the fiber is essential.
In the method forming the subject of the invention, pickling is carried out with metal compounds which are not effective as oxygen carriers, in combination with hydrogen peroxide and nitric acid. The use of such metal compounds in combination with hydrogen peroxide and nitric acid, whereby the latter also slows down the decomposition of hydrogen peroxide, enables the use of much larger amounts of metal compounds than would be necessary for catalytic decomposition of hydrogen peroxide, without excessive oxidation of the hair or premature decomposition of the hydrogen peroxide can occur.
It is advisable to use such metal compounds that are easily absorbed by the fiber, such as zinc, tin compounds and the like. The use of aluminum compounds is to be excluded here.
When carrying out the process, the metal compounds are used in greater than catalytically active amounts, expediently in amounts of more than 10%. The quantities of nitric acid must be kept so large that hydrolysis of metal compounds does not occur or only to a minor extent. By introducing such amounts of metal into the fiber, the brittleness or
The brittleness of the oxidized hair is eliminated, the aging of the stained hair is accelerated and a good flexing ability or elastic and soft grip is achieved.
The invention enables the replacement of the usual poisonous queek silver salts by other metals or metal compounds.
In the process according to the invention, the fiber can either be treated with hydrogen peroxide first and then metal treatment or vice versa, or both treatments can be subjected to both treatments at the same time, the amounts of hydrogen peroxide and metal amounts used being regulated or mutually adjusted depending on the desired pickling effect.
The method according to the invention can also be used for pickling wool, in particular poorly milled types of wool and wool waste.
Example:
The pelts or hair are treated in the usual way with a stain containing around 200 g of zinc nitrate, 20 ecm of nitric acid (400 Bé) and, depending on the quality and stain, 80-120 wu hydrogen peroxide (30%).
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT142784T | 1930-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT142784B true AT142784B (en) | 1935-09-10 |
Family
ID=3642320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT142784D AT142784B (en) | 1930-07-15 | 1930-07-15 | Process for pickling animal fibers, in particular hair for felt production, preferably hat felt production. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT142784B (en) |
-
1930
- 1930-07-15 AT AT142784D patent/AT142784B/en active
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