CH92375A - Process for coloring cellulose acetates. - Google Patents
Process for coloring cellulose acetates.Info
- Publication number
- CH92375A CH92375A CH92375DA CH92375A CH 92375 A CH92375 A CH 92375A CH 92375D A CH92375D A CH 92375DA CH 92375 A CH92375 A CH 92375A
- Authority
- CH
- Switzerland
- Prior art keywords
- cellulose acetates
- dyeing
- cellulose acetate
- coloring cellulose
- coloring
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/67341—Salts or hydroxides of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/653—Nitrogen-free carboxylic acids or their salts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/62—Natural or regenerated cellulose using direct dyes
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Coloring (AREA)
Description
Verfahren zum Färben von Zellulose-Aeetaten. Bek,#inntli--li können Zellulose-Acetate, zum Beispiel Zelltilose-Acetat-Films, nach den übli chen F'irbmethoden praktisch nicht direkt gefärbt werden, weil die Farbstoffaufnahme ganz oder wesentlich zurückbleibt.
Vers_.liedene Verfahren behandeln nun die Zelltilose-Acetate, wie Zellulose-Acetat- Films, vor dem Färben mit anorganischen oder organischen Verbindungen, um so die Aufnahmefähigkeit des Zellulose-Acetates für den nachfolgenden Färbprozess zii erhöhen. Alle diese Verfahren haben keinen Eingang in die Technik gefunden, weil diese Vor behandlung Schwächungen oder Verluste an Zellulose-Acetaten ergab.
Ferner brachten auch die Behandlungen mit Alkalien bei er höhten Temperaturen unerwiinsclite Einbussen au Glanz der zii behandelnden Acetyl- zelhilosen.
Die vorliegende Erfindung gestattet nuu ein direktes Färben der Zellulose-Acetate, wie zum Beispiel Zellulose-Acetat-Films. indem man dieselben mit sauren, basischen oder direkten Farbstoffen, vorzugsweise un ter Zusatz eines oder mehrerer Schutz kolloide, < < #ic zum Beispiel GelaLine, Gelatine- seifen etc., in Gegen@@-art organisclicr Säuren. wie Essigsäure, Ameisensäure etc.,
und in (iegenwar t von grösseren Mengen von was serlöslichen Salzen, zum Beispiel von Chlo riden. wie Zimichlorür, Zinkehlorid, Magne- siumchlorid, Aminoriitunchlorid, färbt.
Auf diese Weise gelingt es, die Zellulose Acetate, zum Beispiel in Form von Band, unter Beibehalttuig des Glanzes bis zur Koch- teinperatur zti färben, ohne dass die zum Bei spiel durch Verseifung üblichen Verluste, Schwächungen usw. auftreten.
Beispielsweise können die sauren Farb- lösungen einzeln oder zusammen bestehen < < us den Lösungen von Chloriden des Zinks. des Kaliums, des Natriums, des Magnesiums, des Bariuiris, ans den Schutzkolloiden, wie Gelatinen, Albuminen, Bastseifen, Tannaten, verseiften oder sulfonierten Fettsäuren, und dem Farbstoff. Als Farbstoffe können alle ba sischen, sauren und direkten Farben in An wendung kommen.
Das Färben erfolgt auf dem Flüssigkeits- hade. vorzugsweise aber in nach dem Schweizerpatent Nr.<B>73914</B> erzeugten Schaum- lmde, wobei die Schutzkolloide zusammen mit den Salzlösungen gleichzeitig emulgierend als Schaumerzeuger dienen und durch ihre Oberfliiclienalctivitä t gemeinsam mit den Farbkolloiden das Absorptionsvermögen des Zellulose-Acetates beträchtlich erhöhen.
Der Patentschutz für das vorliegende Verf ahnen erstreckt sich nicht auf das Fär ben von solchen Gebilden aus Zellulose- Acetaten, welche für die Textilindustrie in Betracht fallen.
Te.spiel 1 kg Acetatfilni wird in einen Schaum apparat hineingehängt. Das unten befindliche Farbbad, 20 bis 30 Liter, wird mit 500 cm-' Fssigs < iure, 100 bis 1000 gr Zinkchlorid und 12 gr Leim versetzt und auf 50 C erwärmt. Alsdann wird die Flüssigkeit in Schaum ver wandelt, welcher den Acetatfilm allseitig um gibt. Nach einer Viertelstunde erwärmt man zimz Sieden und überlässt die Ware während einer weiteren Viertelstunde sich selbst.
Durch eine eventuelle Farbzugabe färbt man auf Muster aus und wäscht die Ware auf einem nachfolgenden Weichwasserbade in Gegenwart von Olemiilsion kurz aus.
Process for dyeing cellulose acetates. It is well known that cellulose acetates, for example cell silose acetate film, cannot be colored directly using the usual dyeing methods, because the dye absorption remains completely or substantially.
Vers_.liedene procedures now treat the cellulose acetate, such as cellulose acetate film, before dyeing with inorganic or organic compounds, in order to increase the absorption capacity of the cellulose acetate for the subsequent dyeing process. None of these processes have found their way into technology because this pre-treatment resulted in weaknesses or losses of cellulose acetates.
Furthermore, the treatments with alkalis at elevated temperatures brought unexpected loss of brilliance to the treated acetyl cellhiloses.
The present invention now permits direct coloring of cellulose acetates, such as cellulose acetate film. by treating them with acidic, basic or direct dyes, preferably with the addition of one or more protective colloids, such as gelatin, gelatine soaps, etc., in counter-organic acids. like acetic acid, formic acid etc.,
and in (there are also large quantities of water-soluble salts, for example chlorides, such as cimichloride, zinc chloride, magnesium chloride, aminoriitunchloride).
In this way it is possible to color the cellulose acetate, for example in the form of a ribbon, while maintaining the gloss up to the cooking temperature, without the losses, weakening, etc., which are usual for example due to saponification.
For example, the acidic color solutions can consist of the solutions of zinc chlorides individually or together. of potassium, sodium, magnesium, barium, and protective colloids such as gelatins, albumins, bast soaps, tannates, saponified or sulfonated fatty acids, and the coloring agent. All basic, acidic and direct colors can be used as dyes.
The dyeing is done on the liquid hade. but preferably in foam pads produced according to Swiss Patent No. 73914, where the protective colloids together with the salt solutions simultaneously serve as an emulsifying foam generator and, through their surface activity, together with the color colloids, considerably increase the absorption capacity of the cellulose acetate .
The patent protection for the present proceedings does not extend to the dyeing of such structures made of cellulose acetates which are suitable for the textile industry.
Te.spiel 1 kg of acetate film is hung in a foam apparatus. The dye bath below, 20 to 30 liters, is mixed with 500 cm of liquid acid, 100 to 1000 g of zinc chloride and 12 g of glue and heated to 50.degree. The liquid is then converted into foam, which surrounds the acetate film on all sides. After a quarter of an hour you heat up a little boil and leave the goods to themselves for another quarter of an hour.
A possible color addition is used to color the sample and wash the goods briefly on a subsequent soft water bath in the presence of olemilicon.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH92375T | 1920-10-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH92375A true CH92375A (en) | 1922-01-02 |
Family
ID=4349824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH92375D CH92375A (en) | 1920-10-06 | 1920-10-06 | Process for coloring cellulose acetates. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH92375A (en) |
-
1920
- 1920-10-06 CH CH92375D patent/CH92375A/en unknown
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