The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 18, 1980
Filed:
Feb. 07, 1978
Roberto Cipolli, Novara, IT;
Gioacchino Boffa, Novara, IT;
Aziende Colori Nazionali Affini Acna S.p.A., Milan, IT;
Abstract
This invention relates to a class of disazo dyes that are useful to dye and print water-swellable cellulose material and blends thereof with synthetic materials, and, in particular, to dye and print polyester-cotton blends. More particularly, the process of this invention relates to a process or method for dyeing and printing fabrics of water-swellable cellulose material and blends thereof with synthetic materials, in particular polyester-cotton mixed fibres, such process comprising the dyeing and printing of the material in the presence of water and of a high-boiling solvent, capable of maintaining cellulose in the swollen state at the application temperature, with disazo dyes having general formula (I): ##STR1## wherein: X.sub.1 =a hydrogen, alkyl or alkoxyl having 1 to 4 atoms of carbon, chlorine, bromine, --CN, --NHCOR.sub.1, --NHCO--Ar, --COOR, --CON(R.sub.1).sub.2, --NO.sub.2 ;