ES222862A3 - A procedure for the obtaining of filaments and ribbed fibers of regenerated cellulose (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for the obtaining of filaments and ribbed fibers of regenerated cellulose (Machine-translation by Google Translate, not legally binding)
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.)
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La Seda de Barcelona SA
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La Seda de Barcelona SA
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Priority to ES0222862ApriorityCriticalpatent/ES222862A3/en
Publication of ES222862A3publicationCriticalpatent/ES222862A3/en
Procedure for obtaining filaments and crimped fibers of regenerated cellulose, consisting of a viscose solution with an alkali content of 4% -7.5% and a saline content of between 1.5-7.0; spinning this solution in the form of filaments in a coagulation and regeneration bath containing 6.5 to 9.5% sulfuric acid, 15 to 30% sodium sulphate, 0.1 to 3% zinc sulfate, at a temperature between 40º and 75ºC .; passing the filaments at least in a distance of 125cm. Through the coagulation bath and stretching them at a tension approximately equal to the breaking stress, and in such a way that the ratio between the spinning and extrusion speeds is between 2.5:º and 4: 1. (Machine-translation by Google Translate, not legally binding)
ES0222862A1955-07-021955-07-02A procedure for the obtaining of filaments and ribbed fibers of regenerated cellulose (Machine-translation by Google Translate, not legally binding)
ExpiredES222862A3
(en)
Improvements introduced in the procedures for the manufacture of threads, fibers and curly analog products (Machine-translation by Google Translate, not legally binding)
A procedure for the manufacture of threads and artificial cut-off fibers of regenerated cellulose (Machine-translation by Google Translate, not legally binding)
Improvements introduced in the procedure for the obtaining of high-tenacity regenerated cellulose threads (Machine-translation by Google Translate, not legally binding)
A procedure for the manufacture of filaments, fibers, wires, movies and other analogue articles of regenerated pellulose (Machine-translation by Google Translate, not legally binding)
Procedure for the production of threads and fibers, highly resistant, based on regenerated cellulose (Machine-translation by Google Translate, not legally binding)