US5246853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating cotton-containing fabric with a cellulase composition containing endoglucanase components and which composition is free of exo-cellobiohydrolase I
Assignee: Danisco US Inc
•
Filing: 1991-03-29
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Granted: 1993-09-21
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Expires: 2011-03-29
Abstract
Abstract Disclosed are improved methods for treating cotton-containing fabrics as well as the fabrics produced from these methods. In particular, the disclosed methods are directed to contacting cotton-containing fabrics with a cellulase solution containing a fungal cellulase composition which is substantially free of all CBH I type cellulase components. Cotton-containing fabrics so treated possess decreased strength loss as compared to fabrics treated with a cellulase solution containing a complete cellulase composition.
Inventors
- 👤 Kathleen A. Clarkson
- 👤 Edward Larenas
- 👤 Geoffrey L. Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:31
CPC Classifications
D; D06; D06M; D06M16/00; D06M16/003; C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38645; C12; C12N; C12N15/00; C12N15/09; C12N15/63; C12N15/79; C12N15/80; C12N9/00; C12N9/14; C12N9/24; C12N9/2402; C12N9/2405; C12N9/2434; C12N9/2437; C12Y; C12Y302/00; C12Y302/01; C12Y302/01004; D06P; D06P5/00; D06P5/15; D06P5/158; D06M2200/00; D06M2200/50; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/945
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
In a method for enhancing the feel and/or appearance and/or for providing color enhancement and/or a stone washed appearance to cotton-containing fabrics during manufacture of the fabric by treatment of the fabric with a composition comprising a naturally complete fungal cellulase composition which comprises exo-cellobiohydrolase I component and endoglucanase component(s) wherein the improvement comprises modifying the naturally complete fungal cellulase composition to comprise at least 10 weight percent of endoglucanase components based on the total weight of protein in the fungal cellulase composition and to be free of the exo-cellobiohydrolase I component.
Claim 2
Dependent Claim
92 words
In a method for enhancing the feel and/or appearance and/or for providing color enhancement and/or a stone washed appearance to cotton-containing fabrics during manufacture of the fabric by treatment of the fabric with a composition comprising a naturally complete fungal cellulase composition which comprises exo-cellobiohydrolase I component and endoglucanase component(s) wherein the improvement comprises modifying the naturally complete fungal cellulase composition to comprise at least 10 weight percent of endoglucanase components based on the total weight of protein in the fungal cellulase composition and to be free of the exo-cellobiohydrolase I component.
Claim 3
Dependent Claim
18 words
The method according to claim 1 wherein said fungal cellulase composition is also free of exo-cellobiohydrolase II component.
Claim 4
Dependent Claim
33 words
The method according to claim 1 wherein said fungal cellulase composition comprises at least about 20 weight percent of said endoglucanase component(s) based on the total weight of protein in the cellulase composition.
Claim 5
Dependent Claim
116 words
In a method for enhancing the feel and/or appearance and/or for providing color enhancement and/or a stone washed appearance to cotton-containing fabrics during manufacture of the fabric by treatment of the fabric with an aqueous fungal cellulase solution comprising a naturally complete fungal cellulase composition comprising exo-cellobiohydrolase I component and endoglucanase component(s) wherein said method is conducted with agitation under conditions so as to produce a cascading effect of the cellulase solution over the fabric wherein the improvement comprises modifying the naturally complete fungal cellulase composition to comprise at least 10 weight percent of endoglucanase component(s) based on the total weight of protein in the cellulase composition and to be free of the exo-cellobiohydrolase I component.
Claim 6
Dependent Claim
116 words
In a method for enhancing the feel and/or appearance and/or for providing color enhancement and/or a stone washed appearance to cotton-containing fabrics during manufacture of the fabric by treatment of the fabric with an aqueous fungal cellulase solution comprising a naturally complete fungal cellulase composition comprising exo-cellobiohydrolase I component and endoglucanase component(s) wherein said method is conducted with agitation under conditions so as to produce a cascading effect of the cellulase solution over the fabric wherein the improvement comprises modifying the naturally complete fungal cellulase composition to comprise at least 10 weight percent of endoglucanase component(s) based on the total weight of protein in the cellulase composition and to be free of the exo-cellobiohydrolase I component.
Claim 7
Dependent Claim
18 words
The method according to claim 4 wherein said fungal cellulase composition is also free of exo-cellobiohydrolase II component.
Claim 8
Dependent Claim
33 words
A method according to claim 4 wherein said fungal cellulase composition comprises at least about 20 weight percent of said endoglucanase component(s) based on the total weight of protein in the cellulase composition.
Claim 9
Dependent Claim
20 words
The method according to claim 1 wherein said method is conducted prior to application of a finish to said fabric.
Claim 10
Dependent Claim
20 words
The method according to claim 4 wherein said method is conducted prior to application of a finish to said fabric.
Claim 11
Dependent Claim
25 words
The method according to claim 1 wherein said composition further comprises less than about 2 weight percent of a surfactant or a mixture of surfactants.
Claim 12
Dependent Claim
27 words
The method according to claim 4 wherein said aqueous cellulase solution further comprises less than about 2 weight percent of a surfactant or a mixture of surfactants.
References Cited (Backward Citations)
DE2148278A1
Cited
US4435307A
Cited
GB2094826A
Cited
GB2095275A
Cited
JPS5836217A
Cited
JPS5854082A
Cited
EP0120528A1
Cited
US4479881A
Cited
US4894338A
Cited
EP0173397A2
Cited
US4648979A
Cited
US4738682A
Cited
EP0244234A2
Cited
US4945053A
Cited
US4822516A
Cited
JPS6440681A
Cited
US4832864A
Cited
WO1989009259A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |