US4432900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cationic dyestuff printing inks
Assignee: Kimberly Clark Tissue Co
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Filing: 1981-07-14
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Granted: 1984-02-21
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Expires: 2001-07-14
Abstract
Abstract Bleed-fast, dyes cellulosics particularly absorbent papers have been obtained with a particular class of water-soluble, cationic dyes reacted with a water-soluble aldehyde, preferably formaldehyde, glyoxal or glutaraldehyde. An aqueous printing fluid containing the water-soluble cationic dye and the aldehyde, upon drying, produces a water-resistant dyestuff having improved bleed fastness upon cellulosic fibers.
Inventors
- 👤 Alex Pociluyko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:01
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/58; D06P3/60; D06P3/6016; C; C09; C09B; C09B33/00; C09B33/02; C09B35/00; C09B35/02; C09B44/00; C09B44/02; C09B67/00; C09B67/0071; C09B67/0075; C09B67/0076; D06P1/00; D06P1/44; D06P1/64; D06P1/651; D06P1/65106; D06P1/65112; D21; D21H; D21H21/00; D21H21/14; D21H21/28; Y; Y10; Y10S; Y10S8/00; Y10S8/916; Y10S8/919; Y10T; Y10T428/00; Y10T428/249921
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
The reaction product of an aldehyde selected from the group consisting of formaldehyde, glyoxal and glutaraldehyde and a cationic, water-soluble dyestuff having a functional group capable of reacting with said aldehyde wherein the functional group of the cationic, water-soluble dyestuff is a lower alkylene amine of the formula --(CH 2 ) n NH 2 wherein n is from 1 to 5.
Claim 2
Dependent Claim
61 words
The reaction product of an aldehyde selected from the group consisting of formaldehyde, glyoxal and glutaraldehyde and a cationic, water-soluble dyestuff having a functional group capable of reacting with said aldehyde wherein the functional group of the cationic, water-soluble dyestuff is a lower alkylene amine of the formula --(CH 2 ) n NH 2 wherein n is from 1 to 5.
Claim 3
Dependent Claim
188 words
The reaction product of claim 1 wherein the water-soluble dyestuff is a mixture consisting essentially of a disazo compound which is polyaminomethylated with an average of x aminomethyl groups per molecule wherein said disazo compound is selected from group consisting of ##STR7## in which x represents a number in the range of one to eight Y represents a divalent moiety selected from the class having the formulas ##STR8## R represents hydrogen, C 1 to C 3 alkyl, C 1 to C 3 alkoxy or N-phenylsulfamoyl, R 1 represents hydrogen, C 1 , to C 3 alkyl, C 1 to C 3 alkoxy, halo, N-phenylsulfamoyl or 6-methylbenzothiazol-2-yl, R 2 , R 3 , R 7 , R 8 , R 10 , R 11 and R 12 represent hydrogen, C 1 to C 3 alkoxy or halo, R 4 represents hydrogen, C 1 to C 3 alkyl or C 1 to C 3 alkoxy, R 5 represents hydrogen or a monovalent moiety selected from the class having the formulas ##STR9## R 9 represents hydrogen or C 1 to C 3 alkyl; and the acid-addition salt forms of said mixtures.
Claim 4
Dependent Claim
34 words
The reaction product of claims 1 or 2 wherein the bleed fastness of the reaction product as indicated by a Bleed Transference Value is about 0 on a cellulosic web when tested with water.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |