US4519803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing on pretreated substrates
Assignee: Pharmacia Searle Ltd
•
Filing: 1983-06-01
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Granted: 1985-05-28
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Expires: 2003-06-01
Abstract
Abstract In the printing of dyes onto substrates, the pretreatment of the substrates with low levels of calcium or sodium salts or other gelling/insolubilizing agents effectively reduces dye usage.
Inventors
- 👤 Kenneth Clare
- 👤 Erle Hopkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:19
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5264; D06P1/5285; D06P1/46; D06P1/48; D06P1/673; D06P1/67333; D06P1/67341; D06P1/6735; D06P5/00; D06P5/12; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
107 words
A process for printing substrates which comprises: (A) applying to at least a portion of a substrate a first aqueous composition comprising (1) 0.025 to 0.275 wt. % of a soluble calcium, aluminum or chromium salt (2) 5 to 20 wt. % of the chloride, nitrate, or sulphate salts of sodium, potassium, or lithium, (3) 0.1 to 1.0 wt. % of polyhexamethylene biguanide hydrochloride, or (4) 0.35 to 1.0 wt % of citric acid so as to produce a treated substrate, (B) then applying to at least a portion of said treated substrate a second aqueous composition comprising a dye and 0.2 to 6.0 wt. % alginate.
Claim 2
Dependent Claim
107 words
A process for printing substrates which comprises: (A) applying to at least a portion of a substrate a first aqueous composition comprising (1) 0.025 to 0.275 wt. % of a soluble calcium, aluminum or chromium salt (2) 5 to 20 wt. % of the chloride, nitrate, or sulphate salts of sodium, potassium, or lithium, (3) 0.1 to 1.0 wt. % of polyhexamethylene biguanide hydrochloride, or (4) 0.35 to 1.0 wt % of citric acid so as to produce a treated substrate, (B) then applying to at least a portion of said treated substrate a second aqueous composition comprising a dye and 0.2 to 6.0 wt. % alginate.
Claim 3
Dependent Claim
32 words
A process of claim 1, in which the second aqueous composition further comprises thickening agents which are one or more of guar, locust bean gum, carboxymethyl cellulose, synthetic polymers, and starch ether.
Claim 4
Dependent Claim
44 words
A process of claim 1, in which the first aqueous composition comprises 0.025 to 0.275 wt. % anhydrous calcium chloride and in which the total amount of calcium chloride applied to the substrate is 0.03 to 0.5% based on the weight of the substrate.
Claim 5
Dependent Claim
21 words
A process as claimed in claim 1, in which the treated substrate of step (A) is dried prior to step (B).
Claim 6
Dependent Claim
29 words
A process as claimed in claim 1, in which the dye is a disperse dye, a reative dye, a combination of disperse and reactive dyes, or an acid dye.
Claim 7
Dependent Claim
72 words
A process for printing substrates which comprises: (A) applying to at least a portion of a substrate a first aqueous composition comprising 5 to 20 wt. % of the chloride, nitrate, or sulphate salts of sodium, potassium, or lithium so as to produce a treated substrate, (B) then applying to at least a portion of said treated substrate a second aqueous composition comprising a dye and 0.2 to 6.0 wt. % alginate.
Claim 8
Dependent Claim
72 words
A process for printing substrates which comprises: (A) applying to at least a portion of a substrate a first aqueous composition comprising 5 to 20 wt. % of the chloride, nitrate, or sulphate salts of sodium, potassium, or lithium so as to produce a treated substrate, (B) then applying to at least a portion of said treated substrate a second aqueous composition comprising a dye and 0.2 to 6.0 wt. % alginate.
Claim 9
Dependent Claim
32 words
A process of claim 6, in which the second aqueous composition further comprises thickening agents which are one or more of guar, locust bean gum, carboxymethyl cellulose, synthetic polymers, and starch ether.
Claim 10
Dependent Claim
64 words
A process for printing substrates which comprises: (A) applying to at least a portion of a substrate a first aqueous composition comprising 0.1 to 1.0 wt. % of polyhexamehtylene biguanide hydrochloride so as to produce a treated substrate, (B) then applying to at least a portion of said treated substrate a second aqueous composition comprising a dye and 0.2 to 6.0 wt. % alginate.
Claim 11
Dependent Claim
64 words
A process for printing substrates which comprises: (A) applying to at least a portion of a substrate a first aqueous composition comprising 0.1 to 1.0 wt. % of polyhexamehtylene biguanide hydrochloride so as to produce a treated substrate, (B) then applying to at least a portion of said treated substrate a second aqueous composition comprising a dye and 0.2 to 6.0 wt. % alginate.
Claim 12
Dependent Claim
32 words
A process of claim 8, in which the second aqueous composition further comprises thickening agents which are one or more of guar, locust bean gum, carboxymethyl cellulose, synthetic polymers, and starch ether.
Claim 13
Dependent Claim
63 words
A process for printing substrates which comprises: (A) applying to at least a portion of a substrate a first aqueous composition comprising 0.35 to 1.0 wt. % of citric acid so as to produce a treated substrate, (B) then applying to at least a portion of said treated substrate a second aqueous composition comprising a dye and 0.2 to 6.0 wt. % alginate.
Claim 14
Dependent Claim
63 words
A process for printing substrates which comprises: (A) applying to at least a portion of a substrate a first aqueous composition comprising 0.35 to 1.0 wt. % of citric acid so as to produce a treated substrate, (B) then applying to at least a portion of said treated substrate a second aqueous composition comprising a dye and 0.2 to 6.0 wt. % alginate.
Claim 15
Dependent Claim
32 words
A process of claim 10, in which the second aqueous composition further comprises thickening agents which are one or more of guar, locust bean gum, carboxymethyl cellulose, synthetic polymers, and starch ether.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-27 | 1988-11-26 | 1989-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-27 | 1992-11-26 | 1993-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-27 | 1996-11-26 | 1997-05-28 | $7700.00 | Window Closed / Lapsed |