GB859339A - Improvements in or relating to the spin dyeing of cellulose acetate - Google Patents
Improvements in or relating to the spin dyeing of cellulose acetateInfo
- Publication number
- GB859339A GB859339A GB20583/58A GB2058358A GB859339A GB 859339 A GB859339 A GB 859339A GB 20583/58 A GB20583/58 A GB 20583/58A GB 2058358 A GB2058358 A GB 2058358A GB 859339 A GB859339 A GB 859339A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spinning solution
- cellulose acetate
- dyestuff
- acetate
- dicarboxylic acid
- 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
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/06—Dyes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
- D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coloring (AREA)
- Artificial Filaments (AREA)
Abstract
In the spin-dyeing of cellulose acetate there is used an anthraquinone dyestuff which is insoluble in the spinning solution and has the general formula: <FORM:0859339/IV(a)/1> wherein X, X1, Y and Y1 represent hydrogen or identical or different substituents selected from fluorine, chlorine or bromine and Z represents the divalent radical of benzene-1.4-dicarboxylic acid or of 1.11-azo- or 1.1 1-azoxy-benzene-4,41-dicarboxylic acid or the divalent radical of an ethylene -1. 2-dicarboxylic acid which may be substituted by chlorine or methyl. The dyed spinning solution may be prepared by dispersing in a portion of the cellulose acetate spinning solution a relatively large proportion of the dyestuff, grinding the suspension to reduce the dyestuff particles to the required size, and mixing a minor proportion of the relatively concentrated suspension with a major proportion of the undyed spinning solution. Alternatively the dyed spinning solution may be prepared by grinding or kneading a mixture of the dyestuff and cellulose acetate in the presence of an organic solvent which dissolves the celluose acetate but not the dyestuff, and which is either miscible with water in all proportions or contains a component miscible with water in all proportions, precipitating the cellulose acetate by addition of water, isolating the dyestuff and cellulose acetate from the mixture and adding the isolated solids mixture to a spinning solution solvent for the celulose acetate. The dyed spinning solution may be subjected to a final grinding before spinning. Both secondary cellulose acetate and cellulose triacetate may be treated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH859339X | 1957-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB859339A true GB859339A (en) | 1961-01-18 |
Family
ID=4542981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20583/58A Expired GB859339A (en) | 1957-06-27 | 1958-06-26 | Improvements in or relating to the spin dyeing of cellulose acetate |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB859339A (en) |
-
1958
- 1958-06-26 GB GB20583/58A patent/GB859339A/en not_active Expired
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