GB1004901A - Improvements in and relating to the surface saponification of cellulose ester fabrics - Google Patents
Improvements in and relating to the surface saponification of cellulose ester fabricsInfo
- Publication number
- GB1004901A GB1004901A GB1979762A GB1979762A GB1004901A GB 1004901 A GB1004901 A GB 1004901A GB 1979762 A GB1979762 A GB 1979762A GB 1979762 A GB1979762 A GB 1979762A GB 1004901 A GB1004901 A GB 1004901A
- Authority
- GB
- United Kingdom
- Prior art keywords
- saponification
- fibres
- alkali
- fabric
- sodium
- 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
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
- D06M11/385—Saponification of cellulose-acetate
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Coloring (AREA)
Abstract
1,004,901. Surface saponification of cellulose ester fabrics. COURTAULDS Ltd. May 22, 1963 [May 23. 1962], No. 19797/62. Heading B5B. The fibres of a cellulose triacetate fabric are superficially saponified while leaving the interior of the fibres substantially unchanged by immersing the fabric in an aqueous alkaline saponifying bath having a pH greater than 7 and containing a cation-active compound, the concentration of the alkali in the bath, the bath temperature and the immersion time being so selected that saponification of the fibres is restricted substantially to the exterior of the fibres. The alkali in the solution may be sodium or potassium hydroxide, sodium or potassium carbonate, bicarbonate, phosphate (i.e. Na 3 PO 4 or K 3 PO 4 ), or metasilicate or may be the cationactive compound itself, e.g. a quaternary ammonium hydroxide such as tetra n-butyl ammonium hydroxide. The cation-active compound is, however, preferably a quaternary ammonium halide such as lauryl dimethyl benzyl ammonium chloride or cetyl trimethyl ammonium bromide. Phosphonium halides or hydroxides may be used. The term " cellulose triacetate " is defined as meaning cellulose acetate having an acetyl value of at least 59% calculated as combined acetic acid. When the alkali is caustic soda, the saponification temperature is preferably 55‹ to 65‹ C., when the alkali is sodium carbonate it is preferably 70‹ to 100‹ C., and when it is sodium bicarbonate it is preferably 95‹ to 100‹ C. and the rate of saponification is slower. The treatment may be combined with the dyeing of the fabric provided that the dyestuff to be used is stable to the alkali used for the saponification. The triacetate fabric may be treated in the unset state or may be treated after having been subjected to a heat-setting treatment. The treatment increases the safe ironing temperature of the fabric and reduces the tendency of the fibres to become charged with static electricity. Specifications 758,442 and 815,794 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1979762A GB1004901A (en) | 1962-05-23 | 1962-05-23 | Improvements in and relating to the surface saponification of cellulose ester fabrics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1979762A GB1004901A (en) | 1962-05-23 | 1962-05-23 | Improvements in and relating to the surface saponification of cellulose ester fabrics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1004901A true GB1004901A (en) | 1965-09-15 |
Family
ID=10135380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1979762A Expired GB1004901A (en) | 1962-05-23 | 1962-05-23 | Improvements in and relating to the surface saponification of cellulose ester fabrics |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1004901A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220881A (en) * | 1988-04-28 | 1990-01-24 | Toyo Boseki | Improvements in or relating to superabsorbent materials |
-
1962
- 1962-05-23 GB GB1979762A patent/GB1004901A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2220881A (en) * | 1988-04-28 | 1990-01-24 | Toyo Boseki | Improvements in or relating to superabsorbent materials |
| GB2220881B (en) * | 1988-04-28 | 1992-07-08 | Toyo Boseki | Improvements in or relating to superabsorbent materials |
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