EP0517762A1 - Process for treatment of textiles. - Google Patents
Process for treatment of textiles.Info
- Publication number
- EP0517762A1 EP0517762A1 EP91905036A EP91905036A EP0517762A1 EP 0517762 A1 EP0517762 A1 EP 0517762A1 EP 91905036 A EP91905036 A EP 91905036A EP 91905036 A EP91905036 A EP 91905036A EP 0517762 A1 EP0517762 A1 EP 0517762A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- enzyme
- agent
- rinsing
- process according
- fact
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38645—Preparations containing enzymes, e.g. protease or amylase containing cellulase
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38627—Preparations containing enzymes, e.g. protease or amylase containing lipase
Definitions
- the invention relates to a process for treatment of textiles by use of an enzyme and to a rinsing agent for use therein.
- Treatment of soiled or unsoiled textiles normally comprises washing with a detergent containing anionic and/or nonionic surfactant, followed by rinsing and drying.
- a detergent containing anionic and/or nonionic surfactant can be incorporated into the detergent to improve the removal of fat soiling (EP 130,064, EP 214,761 , US 4,810,414).
- a non-dusting granulate containing a cellulase can be added to a main wash detergent composition in order to reduce the harshness of the laundry (US 4,435,307).
- proteases are useful in detergent compositions in order to remove proteinaceous stains (US 3,723,250), and that amylases are useful in detergent compositions in order to remove starchy stains (US 3,627,688 and 4,548,727).
- a given enzyme may be incompatible with a given detergent composition due to unsatisfactory activity and stability of the enzyme, and this imposes some limitations in the choice of enzyme and detergent formulation. It is the object of the invention to provide an alternative method of using enzyme in textile treatment, so as to obtain efficient enzyme effects for a given enzyme dosage while avoiding the above limitations.
- an enzyme provides a better enzymatic effect when used in the rinse liquor than when used as a constituent of the main wash composition.
- the effect is particularly pronounced after repeated cycles of washing, rinsing and drying.
- Detergent is essentially absent during rinsing, and thus compatibility problems are avoided.
- the enzyme may advantageously be added in the last rinse step together with a fabric softening and/or antistatic agent.
- the invention provides a process for treatment of textiles by use of an enzyme, characterized by the fact that the enzyme is used in a rinse liquor for a rinsing step after washing.
- the enzyme is used in the rinse liquor for the rinsing step after washing together with a fabric softening agent and/or an antistatic agent.
- a fabric softening agent and/or an antistatic agent An even better enzymatic effect is observed in this embodiment, demonstrating a synergism between enzyme and fabric softening agent and/or antistatic agent.
- the fabric softening agent and/or the antistatic agent is a cationic surfactant.
- a satisfactory enzymatic effect is observed in this embodiment.
- the enzyme is used in the rinse liquor for a second or later rinsing step, preferably in the last rinsing step. In this manner an even better enzymatic effect is observed.
- the enzyme is a lipase and/or a cellulase and/or a protease and/or an amylase. These are the four most commonly used detergent enzymes.
- the enzyme is a lipase and/or a cellulase. In relation to these two enzymes the best improvement according to the invention has been demonstrated. In a preferred embodiment of the process according to the invention the enzyme(s) is (are) of microbial origin. In this manner cheap enzymes can be provided.
- the enzyme is cellulase
- the softening agent and the antistatic agent is a cationic surfactant
- the rinse liquor contains additionally a non-ionic surfactant.
- the concentration of enzyme in the rinse liquor is in the range of 0.001 to 5, preferably 0.01 to 2 mg pure enzyme protein per liter of rinse liquor. At a concentration below 0.001 mg pure enzyme protein per liter of rinse liquor no significant enzyme effect can be observed, and at a concentration above 5 mg pure enzyme protein per liter of rinse liquor the enzyme cost will be unreasonably high.
- the invention comprises a rinsing agent for use in the process according to the invention, this rinsing agent being characterized by the fact that it is an enzyme preparation stabilized against microbial infection.
- the rinsing agent also comprises a fabric softening agent and/or an antistatic agent. In this manner the enzymatic effect during the rinsing process is improved.
- the rinsing agent is aqueous and it exhibits an enzyme activity between 0.01 and 50 mg pure enzyme protein per liter of rinsing agent, preferably between 0.5 and 10 mg pure enzyme protein per liter of rinsing agent, and the content of fabric softening and/or antistatic agent is at least 1% (by weight) (% as active material). It is intended that this rinsing agent is added to the rinse liquor, both providing the proper concentration of enzyme and the proper amount of fabric softening agent and/or antistatic agent.
- the enzyme is cellulase
- the softening agent and the antistatic agent is a cationic surfactant
- the rinsing agent contains additionally a non-ionic surfactant.
- Lipases of plant or animal origin can be used in the invention, but microbial lipases are preferred for reasons of economy.
- Lipases already known to be active in detergents can be used in the invention, but since the conditions in the rinsing step are favourable for most lipases, many other lipases can also be used.
- lipases derived from the following microorganisms.
- the indicated patent publications are incorporated herein by reference: Humicola, e.g. H. insolens (US 4,810,414)
- Pseudomonas e.g. Ps. cepacia or Ps. fluorescens (WO 89/04361). Fusarium, e.g. F. oxysporum (EP 130,064). Mucor (also called Rhizomuco ⁇ , e.g. M. miehei. Candida, e.g. C. cylindracea (also called C. rugosa) or C. antarctica (WO 88/02775).
- the lipase activity unit, LU is defined in AF 95/5, which is available on request from Novo Nordisk A/S, Novo alle, DK-2880 Bagsvaerd, Denmark.
- Cellulases may be derived from Humicola insolens, proteases from Bacillus licheniformis, and amylases may be derived from Bacillus subtilis.
- CEVU cellulase activity unit
- Fabric softening agents and/or antistatic agents are provided.
- a fabric softening and/or antistatic agent effective for fabric after-treatment is used together with the enzyme in the process according to the invention.
- Such after-treatment agents are known in the art.
- One example is quaternary ammonium salts such as dialkyl (Cig-C- j ) dimethyl ammonium chloride, alkyl (C32-C 3 g) trimethyl ammonium chloride or alkyl (Cg-C- j g) dimethyl benzyl ammonium chloride (ABDAC); and alkyl imidazolinium methyl sulphate.
- Another example is layered clay of the smectite type, such as montmorillonite or bentonite.
- the invention uses an enzyme in the rinsing stage of a conventional treatment process for soiled or unsoiled fabrics comprising washing, rinsing and drying.
- the rinsing stage generally comprises 2-5 subsequent steps of rinsing with water, usually 3 or 4 steps.
- the enzyme is added together with a fabric softening and/or antistatic agent (e.g. 0.1-0.5 g/l).
- the enzyme is preferably added in the second or a later rinsing step, and most pre ⁇ ferably in the last rinsing step, where the detergent concentration is lowest (thus minimizing any incompatibility problems between detergent and enzyme) and where it can conveniently be added together with the fabric softening agent and/or antistatic agent, if such agent is used in the process according to the invention.
- Conventional rinsing conditions can be used, e.g. 10-30 ⁇ C water, 1-20 minutes at near-neutral pH (e.g. 5-9) depending on the use of cationic or clay.
- the rinsing agent according to the invention is stabilized against microbial infection, preferably by incorporation of a stabilizing agent known in the art.
- a stabilizing agent known in the art.
- examples are inorganic salts (such as NaCI), sugars (such as sucrose and glucose), polyols (such as glycerol, propylene glycol and sorbitol) and alcohols (such as ethanol and iso-propanol). These are generally effective in amounts above 10%, especially above 20%.
- organic acids such as benzoic, sorbic, propionic, lactic and formic
- stabilizing agents are antioxidants (such as sulphur dioxide), 1 ,2-benz-iso-thiazolin-3-one (BIT) and parabens. Some of these may also serve to improve enzyme stability.
- Further additives may be incorporated to improve enzyme stability or physical stability of the rinsing agent.
- the choice depends on the type of enzyme(s). Examples are CaCl2 (e.g. 0.1-0.5%), a protease inhibitor (such as borate and formate) or 0.5-5% of lower alcohol (such as ethanol or iso-propanol, preferably used together with a larger amount of a polyol).
- the rinsing agent ordinarily is preferably essentially devoid of anionic and nonionic surfactant (total amount of these below 5%, most preferably below 2%).
- the rinsing agent may be in solid (e.g. as non-dusting granules) or liquid form (e.g. aqueous). It may be formulated by incorporating enzyme into known softening/antistatic compositions.
- the content of the softening/antistatic agent is preferably 1-50%, especially 5-50% (% as active material).
- the lipase used in Examples 1 - 4 is from Humicola lanuginosa produced according to US 4,810,414 or from Pseudomonas cepacia produced according to WO 89/04361.
- the cellulase used in Example 5 is from Humicola insolens produced according to US 4,435,307. EXAMPLE 1
- Soiling Lard/Sudan red (1000/0.75 w/w) is heated to 70 ⁇ C, and 50 ⁇ is spotted onto each swatch by a pipette. After application of stain, the swatches are heated in an oven for 30 minutes at 75 °C. Washing: Terg-o-tometer (100 rpm). Commercial European detergent powder, 8 g/l in 18°dH water. pH not adjusted (approx. 10). 30° C, 20 minutes.
- 4th rinse 10 minutes in 1 I tap water (22° C). Swatches squeezed by hand between each rinse. 0 or 100 LU/I of lipase added in 4th rinse. 0 or 0.20 g/l of Arquad 2HT-75 (dialkyl dimethyl ammonium chloride, 75% active matter, Akzo-Chemicals) added in 4th rinse.
- Arquad 2HT-75 dialkyl dimethyl ammonium chloride, 75% active matter, Akzo-Chemicals
- Reflectance is measured at 460 nm. Content of fatty matter is determined by Soxhlet extraction with chloroform for 5 hours. It appears from the following tables that addition of lipase during the last rinse improves the removal of fatty matter, in relation to both lipases, both with and without cationic.
- the treatment consists of a washing process under US conditions followed by a 4 repeated rinsings.
- the enzyme is introduced respectively in the main wash liquor (prior art) and in the rinse liquor corresponding to the last rinsing step (the invention).
- the cellulase is produced by means of Humicola insolens DSM 1800, and the CEVU cellulase activity unit is defined in AF 253/2-GB.
- Nonionic Berol 081, 100% AEO C 16 -C 18 , 30 mole EO, Berol Kemi AB,
- the surface of the swatches is analysed by measuring reflected light.
- the effect of the cellulase is removal of damaged cellulose fibres causing a grey/worn look, and by measuring the grey scale value a quantitative expression for the enzyme treatment is obtained.
- the results are represented in relation to the L-coordinate of a surface not treated with cellulase:
- composition 1 2 3 4
Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK530/90 | 1990-03-01 | ||
DK53090A DK53090D0 (en) | 1990-03-01 | 1990-03-01 | |
DK148990A DK148990D0 (en) | 1990-06-19 | 1990-06-19 | PROCEDURE FOR THE TREATMENT OF TEXTILE MATERIALS AND RULE FOR USE IN THE PROCEDURE |
DK1489/90 | 1990-06-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0517762A1 true EP0517762A1 (en) | 1992-12-16 |
EP0517762B1 EP0517762B1 (en) | 1993-12-08 |
Family
ID=26064162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91905036A Expired - Lifetime EP0517762B1 (en) | 1990-03-01 | 1991-02-28 | Process for treatment of textiles |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0517762B1 (en) |
JP (1) | JP2878454B2 (en) |
AT (1) | ATE98296T1 (en) |
DE (1) | DE69100751T2 (en) |
DK (1) | DK0517762T3 (en) |
ES (1) | ES2047400T3 (en) |
WO (1) | WO1991013136A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1632557A2 (en) | 1994-03-08 | 2006-03-08 | Novozymes A/S | Novel alkaline cellulases |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2093422C (en) * | 1990-10-05 | 2001-04-03 | Detergent compositions containing cellulase compositions deficient in cbh i type components | |
US5290474A (en) * | 1990-10-05 | 1994-03-01 | Genencor International, Inc. | Detergent composition for treating cotton-containing fabrics containing a surfactant and a cellulase composition containing endolucanase III from trichoderma ssp |
US5650322A (en) * | 1990-10-05 | 1997-07-22 | Genencor International, Inc. | Methods for stonewashing fabrics using endoglucanases |
SG52693A1 (en) * | 1991-01-16 | 1998-09-28 | Procter & Gamble | Detergent compositions with high activity cellulase and softening clays |
US6251144B1 (en) | 1992-06-12 | 2001-06-26 | Genencor International, Inc. | Enzymatic compositions and methods for producing stonewashed look on indigo-dyed denim fabric and garments |
US5599786A (en) * | 1993-08-12 | 1997-02-04 | The Procter & Gamble Company | Cellulase fabric-conditioning compositions |
US5616553A (en) * | 1993-08-12 | 1997-04-01 | The Procter & Gamble Company | Fabric conditioning compositions |
EP0724624B1 (en) * | 1993-10-22 | 1998-06-24 | Unilever Plc | Fabric conditioner composition |
AU2399295A (en) * | 1994-04-29 | 1995-11-29 | Procter & Gamble Company, The | Cellulase fabric-conditioning compositions |
US5445747A (en) * | 1994-08-05 | 1995-08-29 | The Procter & Gamble Company | Cellulase fabric-conditioning compositions |
BR9607542A (en) * | 1995-03-03 | 1997-12-23 | Procter & Gamble | Laundry composition containing dye and cellulase fixers |
US8533881B2 (en) | 2009-12-15 | 2013-09-17 | Whirpool Corporation | Method for dispensing an enzyme in a laundry treating appliance |
EP2987848A1 (en) * | 2014-08-19 | 2016-02-24 | The Procter & Gamble Company | Method of laundering a fabric |
IT201600094671A1 (en) | 2016-09-21 | 2018-03-21 | Bolton Manitoba S P A | OPTIMIZED WASHING MACHINE METHOD |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1368599A (en) * | 1970-09-29 | 1974-10-02 | Unilever Ltd | Softening compositions |
DK163591C (en) * | 1985-10-08 | 1992-08-24 | Novo Nordisk As | PROCEDURE FOR TREATING A TEXTILE SUBSTANCE WITH A CELLULASE |
GB8626357D0 (en) * | 1986-11-04 | 1986-12-03 | Reading University Of | Treatment of wool textiles |
-
1991
- 1991-02-28 WO PCT/DK1991/000057 patent/WO1991013136A1/en active IP Right Grant
- 1991-02-28 EP EP91905036A patent/EP0517762B1/en not_active Expired - Lifetime
- 1991-02-28 DE DE91905036T patent/DE69100751T2/en not_active Expired - Fee Related
- 1991-02-28 JP JP3504593A patent/JP2878454B2/en not_active Expired - Lifetime
- 1991-02-28 DK DK91905036.9T patent/DK0517762T3/en active
- 1991-02-28 AT AT91905036T patent/ATE98296T1/en active
- 1991-02-28 ES ES91905036T patent/ES2047400T3/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9113136A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1632557A2 (en) | 1994-03-08 | 2006-03-08 | Novozymes A/S | Novel alkaline cellulases |
Also Published As
Publication number | Publication date |
---|---|
DE69100751T2 (en) | 1994-03-24 |
DE69100751D1 (en) | 1994-01-20 |
JP2878454B2 (en) | 1999-04-05 |
WO1991013136A1 (en) | 1991-09-05 |
DK0517762T3 (en) | 1994-04-18 |
JPH05504367A (en) | 1993-07-08 |
EP0517762B1 (en) | 1993-12-08 |
ATE98296T1 (en) | 1993-12-15 |
ES2047400T3 (en) | 1994-02-16 |
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