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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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Filing date
Publication date
Application filed by American Cyanamid CofiledCriticalAmerican Cyanamid Co
Publication of ES421525A1publicationCriticalpatent/ES421525A1/en
Procedure for dyeing fibrous products, consisting of a fibrous mixture of approximately 25 to 75% by weight of an acrylic fiber substantially free of reactive dots with acidic dyes and, correspondingly, of about 75 to 25% by weight of an acid-stainable fiber; characterized in that it comprises stamping said fibrous product with a printing paste containing a dye of monosulfonic acid having an inorganicity/organicity ratio of less than 4; and then treating the patterned fibrous product with water vapor, whereby both components are stained with said dye. (Machine-translation by Google Translate, not legally binding)
ES421525A1972-12-151973-12-15Procedure for dying fibrous products. (Machine-translation by Google Translate, not legally binding)
ExpiredES421525A1
(en)
Procedure for preparing and dying artificial fibers, especially from the uses as hair in the dolls. (Machine-translation by Google Translate, not legally binding)