WO2023138534A1 - Use of enzymes for improving breathability and/or stain resistance of textile - Google Patents
Use of enzymes for improving breathability and/or stain resistance of textile Download PDFInfo
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- WO2023138534A1 WO2023138534A1 PCT/CN2023/072377 CN2023072377W WO2023138534A1 WO 2023138534 A1 WO2023138534 A1 WO 2023138534A1 CN 2023072377 W CN2023072377 W CN 2023072377W WO 2023138534 A1 WO2023138534 A1 WO 2023138534A1
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- textile
- enzyme
- seq
- softener
- cellulase
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- 108010031354 thermitase Proteins 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
- 235000011178 triphosphate Nutrition 0.000 description 1
- 125000002264 triphosphate group Chemical class [H]OP(=O)(O[H])OP(=O)(O[H])OP(=O)(O[H])O* 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/001—Softening compositions
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
-
- 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
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/12—Soft surfaces, e.g. textile
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
Definitions
- the present invention concerns the use of enzymes, in particular enzymes having cellulase activity, for improving breathability and/or stain resistance of a textile, wherein the use is in a softener.
- the key function of softeners is to coat the surface of a fabric with chemical compounds, such as a cationic surfactant, to make fabrics feel smooth and soft.
- chemical compounds such as a cationic surfactant
- such compounds may decrease e.g. the breathability of a textile. As a result, the physiological comfort of clothes is impaired.
- the inventors found in a surprising manner that the addition of an enzyme having cellulase activity to softener compositions can improve the breathability and/or stain resistance of textiles.
- one aspect of the present invention relates to the use of an enzyme having cellulase activity in a softener composition for improving breathability of a textile.
- the present invention also relates to the use of an enzyme having cellulase activity in a softener composition for improving stain resistance of a textile.
- the present invention provides a softener composition for improving breathability and/or stain resistance of a textile, wherein said softener composition comprises an enzyme having cellulase activity and a cationic surfactant, preferably, said enzyme is a family GH45 cellulase, and more preferably said enzyme is a cellulase having at least 60%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- the present invention relates to a method for improving breathability and/or stain resistance of a textile comprising contacting said textile with an enzyme having cellulase activity and a softener composition during a rinse cycle such as a laundry rinse cycle.
- SEQ ID NO: 1 is an enzyme having cellulase activity from Bacillus sp.
- SEQ ID NO: 2 is an enzyme having cellulase activity from Sordaria fimicola.
- SEQ ID NO: 3 is an enzyme having cellulase activity from Humicola insolens.
- SEQ ID NO: 4 is an enzyme having cellulase activity from Thielavia terrestris.
- SEQ ID NO: 5 is an enzyme having cellulase activity from Staphylotrichum cocosporum.
- SEQ ID NO: 6 is an enzyme having cellulase activity from Neurospora tetrasperma.
- Cellulolytic enzyme or cellulase means one or more (e.g., several) enzymes that hydrolyze a cellulosic material. Such enzymes include endoglucanase (s) , cellobiohydrolase (s) , beta-glucosidase (s) , or combinations thereof.
- the two basic approaches for measuring cellulolytic activity include: (1) measuring the total cellulolytic activity, and (2) measuring the individual cellulolytic activities (endoglucanases, cellobiohydrolases, and beta-glucosidases) as reviewed in Zhang et al., Outlook for cellulase improvement: Screening and selection strategies, 2006, Biotechnology Advances 24: 452-481.
- Total cellulolytic activity is usually measured using insoluble substrates, including Whatman No1 filter paper, microcrystalline cellulose, bacterial cellulose, algal cellulose, cotton, pretreated lignocellulose, etc.
- the most common total cellulolytic activity assay is the filter paper assay using Whatman No1 filter paper as the substrate. The assay was established by the International Union of Pure and Applied Chemistry (IUPAC) (Ghose, 1987, Measurement of cellulase activities, Pure Appl. Chem. 59: 257-68) .
- IUPAC International Union of Pure and Applied Chemistry
- Cellulolytic enzyme activity may be determined by measuring the increase in hydrolysis of a cellulosic material by cellulolytic enzyme (s) under the following conditions: 1-50 mg of cellulolytic enzyme protein/g of cellulose in PCS (pretreated corn stover) or other pretreated cellulosic material for 3-7 days at a suitable temperature, e.g., 50°C, 55°C, or 60°C, compared to a control hydrolysis without addition of cellulolytic enzyme protein.
- a suitable temperature e.g., 50°C, 55°C, or 60°C
- Typical conditions are 1 ml reactions, washed or unwashed PCS, 5%insoluble solids, 50 mM sodium acetate pH 5, 1 mM MnSO 4 , 50°C, 55°C, or 60°C, 72 hours, sugar analysis by HPX-87H column (Bio-Rad Laboratories, Inc., Hercules, CA, USA) .
- Cellulolytic enzyme activity or cellulase activity may be also determined by the method described in Assay I of the present invention. However, any other method known in the art may also be used to determine the cellulase activity.
- Family GH45 cellulase refers to Glycosyl hydrolases that catalyze the hydrolysis of the glycosyl bond.
- Glycosyl hydrolases There are over 100 classes of Glycosyl hydrolases which have been classified, see Henrissat et al. (1991 ) , A classification of glycosyl hydrolases based on amino-acid sequence similarities, J. Biochem. 280: 309-316 and the CAZY website at www. Merriy. org.
- the glycoside hydrolases of family 45 (GH45) have so far been identified as endoglucanase (EC 3.2.1.4) .
- enzymes which are commonly known as “cellulases” . Such enzymes comprise also enzymes that may be known as endoglucananses.
- fragment means a polypeptide having one or more amino acids absent from the amino and/or carboxyl terminus of a mature polypeptide main; wherein the fragment has enzyme activity.
- a fragment contains at least 85%, e.g., at least 90%or at least 95%of the amino acid residues of the mature polypeptide of an enzyme.
- Sequence identity The relatedness between two amino acid sequences or between two nucleotide sequences is described by the parameter “sequence identity” .
- the sequence identity between two amino acid sequences is determined as the output of “longest identity” using the Needleman-Wunsch algorithm (Needleman and Wunsch, 1970, J. Mol. Biol. 48: 443-453) as implemented in the Needle program of the EMBOSS package (EMBOSS: The European Molecular Biology Open Software Suite, Rice et al., 2000, Trends Genet. 16: 276-277) , preferably version 6.6.0 or later.
- the parameters used are a gap open penalty of 10, a gap extension penalty of 0.5, and the EBLOSUM62 (EMBOSS version of BLOSUM62) substitution matrix.
- the nobrief option must be specified in the command line.
- the output of Needle labeled “longest identity” is calculated as follows:
- variant means a polypeptide having enzyme activity comprising an alteration, i.e., a substitution, insertion, and/or deletion, at one or more (e.g., several) positions.
- a substitution means replacement of the amino acid occupying a position with a different amino acid;
- a deletion means removal of the amino acid occupying a position; and
- an insertion means adding an amino acid adjacent to and immediately following the amino acid occupying a position.
- Textile refers to any textile material including yarns, yarn intermediates, fibers, non-woven materials, natural materials, synthetic materials, and any other textile material, fabrics made of these materials and products made from fabrics (e.g., garments and other articles) .
- the textile or fabric may be in the form of knits, wovens, denims, non-wovens, felts, yarns, and towelling.
- the textile may be cellulose based such as natural cellulosics, including cotton, flax/linen, jute, ramie, sisal or coir or manmade cellulosics (e.g.
- the textile or fabric may also be blends or mixtures of cellulose based and non-cellulose based fibers.
- blends are mixtures of cotton and/or rayon/viscose with one or more companion material such as wool, synthetic fiber (e.g. polyamide fiber, acrylic fiber, polyester fiber, polyvinyl chloride fiber, polyurethane fiber, polyurea fiber, aramid fiber) , and/or cellulose-containing fiber (e.g. rayon/viscose, ramie, flax/linen, jute, cellulose acetate fiber, lyocell) .
- Fabric or textile may be conventional washable laundry, for example stained household laundry. When the term fabric or garment is used it is intended to include the broader term textiles as well.
- Breathability The breathability of a textile or a fabric refers to the ability of a fabric to allow moisture vapor to pass through the textile/fabric. It is an essential contributing property to thermal and physiological comfort of clothing, and is vital in filtration and medical textiles as well. Good breathability is crucial in many areas of textiles, but particularly in clothing. For the purpose of the present invention, the breathability may be determined by the method described in Example 1.
- Stain resistance refers to a textile’s ability to withstand discoloration or staining caused by contacting with liquids (e.g. a foundation liquid) and/or solid surfaces e.g. a surface of a lipstick.
- a liquid stain may occur as a result of a fiber being hydrophilic where the liquid gets absorbed by the fiber, and on drying the fiber becomes discolored i.e. stained.
- One of the basic objectives of stain resistance is therefore to prevent or repel e.g. liquid absorption to both fiber and/or fabric surfaces.
- the stain resistance of a textile may be determined by the method described in Example 2 of the present invention.
- Detergent component (or “cleaning component” ) is defined herein to mean the types of chemicals which can be used in detergent compositions for laundry.
- detergent components are surfactants, builders, chelators or chelating agents, bleach system or bleach components, polymers, fabric conditioners, foam boosters, suds suppressors, dyes, perfume, tannish inhibitors, bactericides, fungicides, soil suspending agents, anti-corrosion agents, enzyme inhibitors or stabilizers, enzyme activators, transferase (s) , hydrolytic enzymes, oxido reductases, blueing agents and fluorescent dyes, antioxidants, and solubilizers.
- Detergent Composition refers to compositions that find use in the removal of undesired compounds from items to be cleaned, such as textiles.
- the detergent composition may be used to e.g. clean textiles for both household cleaning and industrial cleaning.
- the term encompasses any materials/compounds selected for the particular type of detergent composition desired and the form of the product (e.g., liquid, gel, powder, granulate, paste, or spray compositions) and includes, but is not limited to, detergent compositions such as liquid and/or solid laundry detergents and fine fabric detergents; fabric fresheners; and textile and laundry pre-spotters/pretreatment.
- the detergent composition may contain one or more detergent enzymes (such as proteases, amylases, cellulases, lipases, cutinases, xyloglucanases, pectinases, pectin lyases, xanthanases, peroxidases, haloperoxygenases, catalases, mannanases, nucleases or any mixture thereof) , and/or detergent adjunct ingredients such as surfactants, builders, chelators or chelating agents, bleach system or bleach components, polymers, fabric conditioners, foam boosters, suds suppressors, dyes, perfume, tannish inhibitors, optical brighteners, bactericides, fungicides, soil suspending agents, anti-corrosion agents, enzyme inhibitors or stabilizers, enzyme activators, transferases, hydrolytic enzymes, oxido reductases, bluing agents and fluorescent dyes, antioxidants, and solubilizers.
- detergent enzymes such as proteases, amylases,
- Fabric softener is a composition that is typically applied to laundry process during the rinse cycle in a washing machine or when washing by hand. Fabric softeners are available as solutions and solids, and may also be impregnated in dryer sheets used in a clothes dryer.
- Fabric softener agent is an ingredient that is comprised in fabric softener compositions such as chemical compounds that are electrically charged. These compounds cause threads in the fabric to lift up from the surface of the textile and thereby gives the fabric a softer feel of the textile.
- the fabric softener agent is one or more cationic softeners. The cationic softeners bind by electrostatic attraction to the negatively charged groups on the surface of the textile and neutralize their charge and thereby impart lubricity.
- Laundering process relates to both household laundering and industrial laundering and means the process of treating textiles with a solution containing a cleaning component or a cleaning composition e.g. a laundry detergent composition.
- the laundering process can for example be carried out using e.g. a household or an industrial washing machine or can be carried out by hand.
- the laundering process may comprise wash cycle and rinse cycle.
- Wash cycle is defined herein as a washing operation wherein textile is exposed to the wash liquor for a period of time by circulating the wash liquor and textile in e.g. a washing machine.
- a wash cycle may be repeated one, two, three, or even four times at the same or at different temperatures.
- the wash cycle is often followed by a rinse cycle and finally a centrifugation cycle where water is removed from the textile. It is known for the skilled person to determine which is the wash cycle during laundry wash.
- wash liquor is intended to mean the solution or mixture of water and other detergent ingredients such as surfactants and optionally including enzymes that may be used in the wash cycle.
- Rinse cycle is defined herein as a rinsing operation wherein textile is exposed to water for a period of time by circulating the water and optionally mechanically treat the textile in order to rinse the textile and finally the superfluous water is removed.
- a rinse cycle is normally of shorter duration compared a wash cycle and may be repeated one, two, three, four, five or even six times at the same or at different temperatures.
- Figure 1 schematically illustrates the setup for measuring the breathability of a textile.
- Figure 2 schematically illustrates the process for measuring the stain resistance of a textile
- Figure 3 shows the stain resistance of textiles washed with and without cellulase of the present invention.
- Figure 4 shows the stain resistance of textiles washed with and without cellulase of the present invention.
- the present invention relates to the use of an enzyme e.g. a cellulase for improving breathability of a textile by adding the enzyme to a softener.
- the invention also relates to a method for improving breathability of a textile comprising contacting said textile, with an enzyme and a softener.
- the present inventors have found that by adding an enzyme having cellulase activity to a softener, the breathability of the textile is improved as compared to when using a softener without said enzyme.
- a softener is typically applied to laundry process during the rinse cycle in a washing machine or by hand wash.
- fabric softeners are available as solutions and solids, and may also be permeated in dryer sheets used in a clothes dryer.
- the present invention also relates to the use of an enzyme for improving stain resistance of a textile by adding said enzyme to a softener.
- the invention further relates to a method for improving stain resistance of a textile comprising contacting said textile with an enzyme and a softener.
- the inventors of the present invention have surprisingly found that, by addition of an enzyme having cellulase activity to a softener composition, washed textiles become less likely to be stained, in other words, washed textiles are more resistant to daily stains such as cosmetic stains, as compared to using a softener without said enzyme.
- textiles e.g.
- clothes washed by cellulase-containing softener can not only maintain the smooth and soft property, but also avoid or reduce the contamination by everyday stains during use e.g. wearing such textiles.
- the stain resistance towards daily life stains, particularly cosmetic stains (such as lipsticks, liquid foundations) of a textile is improved after being washed by a softener containing an enzyme having cellulase activity.
- Cosmetics are constituted mixtures of chemical compounds (e.g. containing functional groups such as Si-O, -COOH, -NH-, -OH structures) derived from either natural sources, or synthetically created ones.
- Cosmetics designed to enhance or alter one’s appearance can be used to conceal blemishes, enhance one’s natural features (such as the eyebrows and eyelashes) , add color to a person's face, provide skin care benefits, or change the appearance of the face entirely to resemble a different person, creature or object.
- Enzymes having cellulase activity useful in exercise of the present invention may be selected from glycoside hydrolase family 5 (GH5) , glycoside hydrolase family 7 (GH7) , glycoside hydrolase family 12 (GH12) , glycoside hydrolase family 44 (GH44) and glycoside hydrolase family 45 (GH45) , preferably family GH45 cellulases.
- the enzyme used in the softener composition is a family GH45 cellulase.
- the breathability of the textile has been evaluated as the speed that the vapor generated by a humidifier passes through a plastic tube having a length of 30cm and a diameter of 7cm, as described in Example 1. Better breathability allows the vapor to pass through the plastic tube faster.
- the evaluation comprises the step of pre-washing the textile multiple times e.g. 5, 10 or 15 times before measuring breathability, and optionally the textile has been tumble dried in-between each wash.
- the stain resistance of a fabric or a textile is evaluated by measuring remission value at 460nm (REM460 or R460) .
- REM460 or R460 remission value at 460nm
- the assay comprises the step of pre-washing the textile multiple times e.g. 5, 10 or 15 times before evaluation of stain resistance, and optionally the textile has been tumble dried in-between each wash.
- the stain resistance of a fabric or a textile is evaluated by a group of trained panelists.
- the panelists were asked to score the washed textiles in terms of stained level. For example, higher score will be assigned to a textile with more stains.
- Example 2 the stain resistance of a textile was evaluated by directly comparing the textiles after staining.
- the enzyme having cellulase activity is a cellulase having at least 60%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- the cellulase may be any one having at least 60%sequence identity to SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5 or SEQ ID NO: 6, preferably the cellulase has at least 65%, such as 70%, such as 75%, such as 80%, such as 85%, such as 90%, such as 91%, such as 92%, such as 93%, such as 94%, such as 95%, such as 96%, such as 97%, such as 98%, such as 99%, or such as 100%, sequence identity to SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5 or SEQ ID NO: 6, or a fragment thereof having cellulase activity.
- the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 1, or a fragment thereof having cellulase activity.
- said enzyme is from Bacillus sp.
- the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 2, or a fragment thereof having cellulase activity.
- said enzyme is from Sordania, preferably from Sordania fimicola.
- the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 3, or a fragment thereof having cellulase activity.
- said enzyme is from Humicola, preferably from Humicola insolens.
- the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 4, or a fragment thereof having cellulase activity.
- said enzyme is from Thielavia, preferably from Thielavia terrestris.
- the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 5, or a fragment thereof having cellulase activity.
- said enzyme is from Staphylotrichum, preferably from Staphylotrichum cocosporum.
- the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 6, or a fragment thereof having cellulase activity.
- said enzyme is from Neurospora, preferably from Neurospora tetrasperma.
- cellulases are the alkaline or neutral cellulases having colour care benefits.
- Examples of such cellulases are cellulases described in EP 0 495 257, EP 0 531 372, WO 96/11262, WO 96/29397, WO 98/08940.
- Other examples are cellulase variants such as those described in WO 94/07998, EP 0 531 315, US 5, 457, 046, US 5, 686, 593, US 5, 763, 254, WO 95/24471, WO 98/12307 and WO99/001544.
- cellulases are endo-beta-1, 4-glucanase enzyme having a sequence of at least 97%identity to the amino acid sequence of position 1 to position 773 of SEQ ID NO: 2 of WO 2002/099091 or a family 44 xyloglucanase, which a xyloglucanase enzyme having a sequence of at least 60%identity to positions 40-559 of SEQ ID NO: 2 of WO 2001/062903.
- Celluzyme TM Commercially available cellulases include Celluzyme TM , and Carezyme TM (Novozymes A/S) Carezyme Premium TM (Novozymes A/S) , Celluclean TM (Novozymes A/S) , Celluclean Classic TM (Novozymes A/S) , Cellusoft TM (Novozymes A/S) , Whitezyme TM (Novozymes A/S) , Clazinase TM , and Puradax HA TM (Genencor International Inc. ) , and KAC-500 (B) TM (Kao Corporation) , 200 (Danisco/Dupont) , and 2000 (Danisco/Dupont) .
- Carezyme TM Novozymes A/S
- Carezyme Premium TM Novozymes A/S
- Celluclean TM Novozymes A/S
- Celluclean Classic TM Novozymes A/S
- the preparation of the enzyme having celluase activity as described herein can e.g. be performed as described in WO 2015/036579 (incorporated herein by reference) .
- the enzyme of the present invention may also be prepared by any method known in the art.
- the amount of cellulase enzyme that is effective in improving breathability and/or stain resistance of treated, e.g. laundered, textiles is in the range of 0.005 wt%to 3 wt%, preferably 0.01 wt%to 2 wt%, 0.1 wt%to 1.5 wt%or 0.2 wt%to 0.8 wt%, but in one embodiment, the cellulase enzyme is added in a concentration of at least 0.4 wt%of said softener composition.
- the amount of cellulase enzyme that is effective in improving breathability and/or stain resistance of treated, e.g. laundered, textiles may be in the range of 0.001 mg to 100 mg enzyme protein per liter of wash liquor, such as 0.1 mg to 50 mg enzyme protein, 1 mg to 30 mg enzyme protein or 2 mg to 10 mg enzyme protein, per liter of wash liquor.
- a softener may also be termed “fabric softener” or even “fabric conditioner” and the components of such a softener, may differ in affinity to various fabrics. Some work better on cellulose-based fibers (i.e., cotton) , others have higher affinity to hydrophobic materials like nylon, polyethylene terephthalate, polyacrylonitrile, etc. Other silicone-based compounds, such as polydimethylsiloxane, work by lubricating the fibers. Derivatives with amine-or amide-containing functional groups may be included as well. These groups improve the softener's binding to fabrics.
- softeners are often hydrophobic, they commonly occur in the form of an emulsion.
- manufactures used soaps as emulsifiers.
- the emulsions are usually opaque, milky fluids.
- microemulsions where the droplets of the hydrophobic phase may be substantially smaller. Microemulsions provide the advantage of increased ability of smaller particles to penetrate into the fibers.
- the softener composition may contain a mixture of cationic and non-ionic surfactants as an emulsifier.
- Another approach is a polymeric network, an emulsion polymer.
- the softener composition comprises cationic surfactants, such as esterquats.
- cationic surfactants such as esterquats.
- the cations contain one or two long alkyl chains derived from fatty acids.
- Other cationic compounds can be derived from imidazolium, substituted amine salts, or quaternary alkoxy ammonium salts.
- the softener has a pH of at least 2.0, such as at least 2.4, such as at least 3.0.
- the softener to which the enzyme is added typically has a pH of 2.0 to 5.0, preferably in the range of 2.5 to 4.5, or even more preferred in the range of 3.0 to 3.5.
- the enzyme that is added to the softener is an enzyme that is stable at such pH.
- the composition, such as the softener, to which the enzyme is added as a pH which is within the optimal pH range of the enzyme said pH will not affect the enzyme in a negative way. Therefore, it is believed that the pH of the softener and the enzyme complement each other in their function.
- the enzyme will provide the stain resistance and/or improved breathability, whereas the pH of the softener will make sure that the surfactant works and bring softness to the treated fabric.
- the textile which has improved breathability and/or stain resistance when rinsed with a softener composition comprising an enzyme, preferably a family GH45 cellulase, wherein the textile has been pre-washed in a laundering process.
- a softener composition comprising an enzyme, preferably a family GH45 cellulase, wherein the textile has been pre-washed in a laundering process.
- the laundry process comprises a wetting step, i.e. where water is let in to the machine and the textile thereby gets wet, a washing step, i.e. where the laundry detergent is added to the washing liquid, a rinse step or rinse cycle, i.e. where optionally a softener is added to the rinse liquid, and finally a centrifugation step, i.e. where the textile is centrifuged in order to relieve the textile for as much water as possible before the textile is dried.
- a wetting step i.e. where water is let in to the machine and the textile thereby gets wet
- a washing step i.e. where the laundry detergent is added to the washing liquid
- a rinse step or rinse cycle i.e. where optionally a softener is added to the rinse liquid
- a centrifugation step i.e. where the textile is centrifuged in order to relieve the textile for as much water as possible before the textile is dried.
- the cellulase of the present invention is added to the rinse step or rinse cycle together with a softener composition.
- the textile contemplated in the present invention may be any pure form, such as 100%cotton, 100%polyester or the like, or it may be any blend or mixture of different types of textile, such as a mixture of at least 20%polyester and at least 40%cotton.
- the textile is 100%cotton.
- the textile is a mixture of 40%polyester and 60%cotton.
- the textile is cotton.
- the textile may have been pre-washed (treated) in a laundering process.
- the laundering process may be done at various temperatures depending on the textile, the level of dirt on the textile, or any other aspect that may be dependent on the temperature.
- the invention is not limited to any specific temperature.
- the pre-washing has been done at a temperature of at least 5°C, such as at least 10 °C, at least 15 °C, at least 20 °C, at least 25 °C, at least 30 °C, at least 35 °C, at least 40 °C, at least 45 °C, at least 50 °C or at least 60 °C.
- the invention also relates to a softener composition for improving breathability and/or stain resistance of a textile, wherein said softener composition comprises an enzyme having cellulase activity and a cationic surfactant e.g. esterquats, and wherein preferably said enzyme is a family GH45 cellulase, and more preferably a cellulase having at least 60%, e.g., at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- the softener composition may further comprise a preservative and/or biocide.
- the preservative and/or biocide is selected from metholisothiazolinone or methylchlorisothiazolinone or a combination of metholisothiazolinone and methylchlorisothiazolinone. Metholisothiazolinone and methylchlorisothiazolinone have preserving effect and biocidal effect.
- adding an acid to the softener composition enables water-soluble metal salts to at least partially dissolve in the composition.
- the acid also helps to at least partially reduce the precipitation on hard surfaces during the rinse cycle.
- the acid may also stabilize the liquid softener composition against precipitation in the product prior to use.
- adding an acid to the softener composition enables water-soluble metal salts, once released, to at least partially dissolve quickly in the wash and/or rinse liquor of a laundry appliance so as to prevent insoluble material from forming and/or from depositing onto the surfaces, such as on textiles.
- more than one enzyme may be added to the softener.
- one or more additional enzymes may be added to the softener composition.
- the one or more additional enzymes may be selected from the group consisting of proteases, amylases, lipases, cutinases, xyloglucanases, pectinases, pectin lyases, xanthanases, peroxidases, haloperoxygenases, catalases, mannanases, nucleases or any mixture thereof. The enzymes are described in further details below.
- Suitable amylases which can be used in the rinse aid composition of the invention may be an alpha-amylase or a glucoamylase and may be of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Amylases include, for example, alpha-amylases obtained from Bacillus, e.g., a special strain of Bacillus licheniformis, described in more detail in GB 1, 296, 839.
- Suitable amylases include amylases having SEQ ID NO: 2 in WO 95/10603 or variants having 90%sequence identity to SEQ ID NO: 3 thereof.
- Preferred variants are described in WO 94/02597, WO 94/18314, WO 97/43424 and SEQ ID NO: 4 of WO 99/019467, such as variants with substitutions in one or more of the following positions: 15, 23, 105, 106, 124, 128, 133, 154, 156, 178, 179, 181, 188, 190, 197, 201, 202, 207, 208, 209, 211, 243, 264, 304, 305, 391, 408, and 444.
- amylases having SEQ ID NO: 6 in WO 02/010355 or variants thereof having 90%sequence identity to SEQ ID NO: 6.
- Preferred variants of SEQ ID NO: 6 are those having a deletion in positions 181 and 182 and a substitution in position 193.
- amylases which are suitable are hybrid alpha-amylase comprising residues 1-33 of the alpha-amylase derived from B. amyloliquefaciens shown in SEQ ID NO: 6 of WO 2006/066594 and residues 36-483 of the B. licheniformis alpha-amylase shown in SEQ ID NO: 4 of WO 2006/066594 or variants having 90%sequence identity thereof.
- Preferred variants of this hybrid alpha-amylase are those having a substitution, a deletion or an insertion in one of more of the following positions: G48, T49, G107, H156, A181, N190, M197, I201, A209 and Q264.
- hybrid alpha-amylase comprising residues 1-33 of the alpha-amylase derived from B. amyloliquefaciens shown in SEQ ID NO: 6 of WO 2006/066594 and residues 36-483 of SEQ ID NO: 4 are those having the substitutions: M197T; H156Y+A181T+N190F+A209V+Q264S; or G48A+T49I+G107A+H156Y+A181T+N190F+I201F+A209V+Q264S.
- amylases which are suitable are amylases having SEQ ID NO: 6 in WO 99/019467 or variants thereof having 90%sequence identity to SEQ ID NO: 6.
- Preferred variants of SEQ ID NO: 6 are those having a substitution, a deletion or an insertion in one or more of the following positions: R181, G182, H183, G184, N195, I206, E212, E216 and K269.
- Particularly preferred amylases are those having deletion in positions R181 and G182, or positions H183 and G184.
- Additional amylases which can be used are those having SEQ ID NO: 1, SEQ ID NO: 3, SEQ ID NO: 2 or SEQ ID NO: 7 of WO 96/023873 or variants thereof having 90%sequence identity to SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3 or SEQ ID NO: 7.
- Preferred variants of SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3 or SEQ ID NO: 7 are those having a substitution, a deletion or an insertion in one or more of the following positions: 140, 181, 182, 183, 184, 195, 206, 212, 243, 260, 269, 304 and 476, using SEQ ID 2 of WO 96/023873 for numbering.
- More preferred variants are those having a deletion in two positions selected from 181, 182, 183 and 184, such as 181 and 182, 182 and 183, or positions 183 and 184.
- Most preferred amylase variants of SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 7 are those having a deletion in positions 183 and 184 and a substitution in one or more of positions 140, 195, 206, 243, 260, 304 and 476.
- amylases which can be used are amylases having SEQ ID NO: 2 of WO 08/153815, SEQ ID NO: 10 in WO 01/66712 or variants thereof having 90%sequence identity to SEQ ID NO: 2 of WO 08/153815 or 90%sequence identity to SEQ ID NO: 10 in WO 01/66712.
- Preferred variants of SEQ ID NO: 10 in WO 01/66712 are those having a substitution, a deletion or an insertion in one of more of the following positions: 176, 177, 178, 179, 190, 201, 207, 211 and 264.
- amylases are variants of SEQ ID NO: 1 of WO 2016/203064 having at least 75%sequence identity to SEQ ID NO: 1 thereof.
- Preferred variants are variants comprising a modification in one or more positions corresponding to positions 1, 54, 56, 72, 109, 113, 116, 134, 140, 159, 167, 169, 172, 173, 174, 181, 182, 183, 184, 189, 194, 195, 206, 255, 260, 262, 265, 284, 289, 304, 305, 347, 391, 395, 439, 469, 444, 473, 476, or 477 of SEQ ID NO: 1, wherein said alpha-amylase variant has a sequence identity of at least 75%but less than 100%to SEQ ID NO: 1.
- amylases having SEQ ID NO: 2 of WO 09/061380 or variants having 90%sequence identity to SEQ ID NO: 2 thereof.
- Preferred variants of SEQ ID NO: 2 are those having a truncation of the C-terminus and/or a substitution, a deletion or an insertion in one of more of the following positions: Q87, Q98, S125, N128, T131, T165, K178, R180, S181, T182, G183, M201, F202, N225, S243, N272, N282, Y305, R309, D319, Q320, Q359, K444 and G475.
- More preferred variants of SEQ ID NO: 2 are those having the substitution in one of more of the following positions: Q87E, R, Q98R, S125A, N128C, T131I, T165I, K178L, T182G, M201L, F202Y, N225E, R, N272E, R, S243Q, A, E, D, Y305R, R309A, Q320R, Q359E, K444E and G475K and/or deletion in position R180 and/or S181 or of T182 and/or G183.
- Most preferred amylase variants of SEQ ID NO: 2 are those having the substitutions:
- variants are C-terminally truncated and optionally further comprises a substitution at position 243 and/or a deletion at position 180 and/or position 181.
- amylases having SEQ ID NO: 1 of WO13184577 or variants having 90%sequence identity to SEQ ID NO: 1 thereof.
- Preferred variants of SEQ ID NO:1 are those having a substitution, a deletion or an insertion in one of more of the following positions: K176, R178, G179, T180, G181, E187, N192, M199, I203, S241, R458, T459, D460, G476 and G477.
- More preferred variants of SEQ ID NO: 1 are those having the substitution in one of more of the following positions: K176L, E187P, N192FYH, M199L, I203YF, S241QADN, R458N, T459S, D460T, G476K and G477K and/or deletion in position R178 and/or S179 or of T180 and/or G181.
- Most preferred amylase variants of SEQ ID NO: 1 are those having the substitutions:
- variants optionally further comprise a substitution at position 241 and/or a deletion at position 178 and/or position 179.
- amylases having SEQ ID NO: 1 of WO10104675 or variants having 90%sequence identity to SEQ ID NO: 1 thereof.
- Preferred variants of SEQ ID NO: 1 are those having a substitution, a deletion or an insertion in one of more of the following positions: N21, D97, V128, K177, R179, S180, I181, G182, M200, L204, E242, G477 and G478.
- More preferred variants of SEQ ID NO: 1 are those having the substitution in one of more of the following positions: N21D, D97N, V128I K177L, M200L, L204YF, E242QA, G477K and G478K and/or deletion in position R179 and/or S180 or of I181 and/or G182.
- Most preferred amylase variants of SEQ ID NO: 1 are those having the substitutions:
- variants optionally further comprise a substitution at position 200 and/or a deletion at position 180 and/or position 181.
- amylases are the alpha-amylase having SEQ ID NO: 12 in WO01/66712 or a variant having at least 90%sequence identity to SEQ ID NO: 12.
- Preferred amylase variants are those having a substitution, a deletion or an insertion in one of more of the following positions of SEQ ID NO: 12 in WO01/66712: R28, R118, N174; R181, G182, D183, G184, G186, W189, N195, M202, Y298, N299, K302, S303, N306, R310, N314; R320, H324, E345, Y396, R400, W439, R444, N445, K446, Q449, R458, N471, N484.
- Particular preferred amylases include variants having a deletion of D183 and G184 and having the substitutions R118K, N195F, R320K and R458K, and a variant additionally having substitutions in one or more position selected from the group: M9, G149, G182, G186, M202, T257, Y295, N299, M323, E345 and A339, most preferred a variant that additionally has substitutions in all these positions.
- amylase variants such as those described in WO2011/098531, WO2013/001078 and WO2013/001087.
- amylases are Duramyl TM , Termamyl TM , Fungamyl TM , Stainzyme TM , Stainzyme Plus TM , Natalase TM , Liquozyme X and BAN TM (from Novozymes A/S) , and Rapidase TM , Purastar TM /Effectenz TM , Powerase, Preferenz S1000, Preferenz S100 and Preferenz S110 (from Genencor International Inc. /DuPont) .
- Suitable proteases include those of bacterial, fungal, plant, viral or animal origin e.g. vegetable or microbial origin. Microbial origin is preferred. Chemically modified or protein engineered mutants are included. It may be an alkaline protease, such as a serine protease or a metalloprotease. A serine protease may for example be of the S1 family, such as trypsin, or the S8 family such as subtilisin. A metalloproteases protease may for example be a thermolysin from e.g. family M4 or other metalloprotease such as those from M5, M7 or M8 families.
- subtilases refers to a sub-group of serine protease according to Siezen et al., Protein Engng. 4 (1991) 719-737 and Siezen et al. Protein Science 6 (1997) 501-523.
- Serine proteases are a subgroup of proteases characterized by having a serine in the active site, which forms a covalent adduct with the substrate.
- the subtilases may be divided into 6 sub-divisions, i.e. the Subtilisin family, the Thermitase family, the Proteinase K family, the Lantibiotic peptidase family, the Kexin family and the Pyrolysin family.
- subtilases are those derived from Bacillus such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in; US7262042 and WO09/021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN’, subtilisin 309, subtilisin 147 and subtilisin 168 described in WO89/06279 and protease PD138 described in (WO93/18140) .
- proteases may be those described in WO92/175177, WO01/016285, WO02/026024 and WO02/016547.
- trypsin-like proteases are trypsin (e.g. of porcine or bovine origin) and the Fusarium protease described in WO89/06270, WO94/25583 and WO05/040372, and the chymotrypsin proteases derived from Cellumonas described in WO05/052161 and WO05/052146.
- a further preferred protease is the alkaline protease from Bacillus lentus DSM 5483, as described for example in WO95/23221, and variants thereof which are described in WO92/21760, WO95/23221, EP1921147 and EP1921148.
- metalloproteases are the neutral metalloprotease as described in WO07/044993 (Genencor Int. ) such as those derived from Bacillus amyloliquefaciens.
- WO92/19729 examples include the variants described in: WO92/19729, WO96/034946, WO98/20115, WO98/20116, WO99/011768, WO01/44452, WO03/006602, WO04/03186, WO04/041979, WO07/006305, WO11/036263, WO11/036264, especially the variants with substitutions in one or more of the following positions: 3, 4, 9, 15, 24, 27, 42, 55, 59, 60, 66, 74, 85, 96, 97, 98, 99, 100, 101, 102, 104, 116, 118, 121, 126, 127, 128, 154, 156, 157, 158, 161, 164, 176, 179, 182, 185, 188, 189, 193, 198, 199, 200, 203, 206, 211, 212, 216, 218, 226, 229, 230, 239, 246, 255,
- subtilase variants may comprise the mutations: S3T, V4I, S9R, S9E, A15T, S24G, S24R, K27R, N42R, S55P, G59E, G59D, N60D, N60E, V66A, N74D, N85S, N85R, , G96S, G96A, S97G, S97D, S97A, S97SD, S99E, S99D, S99G, S99M, S99N, S99R, S99H, S101A, V102I, V102Y, V102N, S104A, G116V, G116R, H118D, H118N, N120S, S126L, P127Q, S128A, S154D, A156E, G157D, G157P, S158E, Y161A, R164S, Q176E, N179E, S182E, Q185N, A188P, G189E, V193M, N
- the protease variants are preferably variants of the Bacillus Lentus protease shown in SEQ ID NO 1 of WO 2016/001449, the Bacillus amylolichenifaciens protease (BPN’) shown in SEQ ID NO 2 of WO2016/001449.
- the protease variants preferably have at least 80 %sequence identity to SEQ ID NO 1 or SEQ ID NO 2 of WO 2016/001449.
- a protease variant comprising a substitution at one or more positions corresponding to positions 171, 173, 175, 179, or 180 of SEQ ID NO: 1 of WO2004/067737, wherein said protease variant has a sequence identity of at least 75%but less than 100%to SEQ ID NO: 1 of WO2004/067737.
- Suitable commercially available protease enzymes include those sold under the trade names Duralase Tm , Durazym Tm , Ultra, Ultra, Ultra, Ultra, Blaze 100T, Blaze 125T, Blaze 150T, and (Novozymes A/S) , those sold under the tradename Purafect Purafect Excellenz P1000 TM , Excellenz P1250 TM , Preferenz P100 TM , Purafect Preferenz P110 TM , Effectenz P1000 TM , Effectenz P1050 TM , Purafect Effectenz P2000 TM , and (Danisco/DuPont) , Axapem TM (Gist-Brocases N.V. ) , BLAP (sequence shown in Figure 29 of US5352604) and variants hereof (Henkel AG) and KAP (Bacillus alkalophilus subtilisin) from Kao.
- Suitable mannanases include those of bacterial or fungal origin. Chemically or genetically modified mutants are included.
- the mannanase may be an alkaline mannanase of Family 5 or 26. It may be a wild-type from Bacillus or Humicola, particularly B. agaradhaerens, B. licheniformis, B. halodurans, B. clausii, or H. insolens.
- Suitable mannanases are described in WO 1999/064619. A commercially available mannanase is Mannaway (Novozymes A/S) .
- Suitable peroxidases/oxidases include those of plant, bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinus, e.g., from C. cinereus, and variants thereof as those described in WO 93/24618, WO 95/10602, and WO 98/15257. Commercially available peroxidases include Guardzyme TM (Novozymes A/S) .
- Suitable lipases and cutinases include those of bacterial or fungal origin. Chemically modified or protein engineered mutant enzymes are included. Examples include lipase from Thermomyces, e.g. from T. lanuginosus (previously named Humicola lanuginosa) as described in EP258068 and EP305216, cutinase from Humicola, e.g. H. insolens (WO96/13580) , lipase from strains of Pseudomonas (some of these now renamed to Burkholderia) , e.g. P. alcaligenes or P. pseudoalcaligenes (EP218272) , P.
- Thermomyces e.g. from T. lanuginosus (previously named Humicola lanuginosa) as described in EP258068 and EP305216
- cutinase from Humicola e.g. H. insolens (WO96/135
- lipase variants such as those described in EP407225, WO92/05249, WO94/01541, WO94/25578, WO95/14783, WO95/30744, WO95/35381, WO95/22615, WO96/00292, WO97/04079, WO97/07202, WO00/34450, WO00/60063, WO01/92502, WO07/87508 and WO09/109500.
- Preferred commercial lipase products include include Lipolase TM , Lipex TM ; Lipolex TM and Lipoclean TM (Novozymes A/S) , Lumafast (originally from Genencor) and Lipomax (originally from Gist-Brocades) .
- lipases sometimes referred to as acyltransferases or perhydrolases, e.g. acyltransferases with homology to Candida antarctica lipase A (WO10/111143) , acyltransferase from Mycobacterium smegmatis (WO05/56782) , perhydrolases from the CE 7 family (WO09/67279) , and variants of the M. smegmatis perhydrolase in particular the S54V variant used in the commercial product Gentle Power Bleach from Huntsman Textile Effects Pte Ltd (WO10/100028) .
- a peroxidase according to the invention is a peroxidase enzyme comprised by the enzyme classification EC 1.11.1.7, as set out by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB) , or any fragment derived therefrom, exhibiting peroxidase activity.
- IUBMB International Union of Biochemistry and Molecular Biology
- Suitable peroxidases include those of plant, bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinopsis, e.g., from C. cinerea (EP 179, 486) , and variants thereof as those described in WO 93/24618, WO 95/10602, and WO 98/15257.
- a peroxidase according to the invention also include a haloperoxidase enzyme, such as chloroperoxidase, bromoperoxidase and compounds exhibiting chloroperoxidase or bromoperoxidase activity.
- haloperoxidases are classified according to their specificity for halide ions. Chloroperoxidases (E.C. 1.11.1.10) catalyze formation of hypochlorite from chloride ions.
- the haloperoxidase of the invention is a chloroperoxidase.
- the haloperoxidase is a vanadium haloperoxidase, i.e., a vanadate-containing haloperoxidase.
- the vanadate-containing haloperoxidase is combined with a source of chloride ion.
- Haloperoxidases have been isolated from many different fungi, in particular from the fungus group dematiaceous hyphomycetes, such as Caldariomyces, e.g., C. fumago, Alternaria, Curvularia, e.g., C. verruculosa and C. inaequalis, Drechslera, Ulocladium and Botrytis.
- Caldariomyces e.g., C. fumago
- Alternaria Curvularia
- Curvularia e.g., C. verruculosa and C. inaequalis
- Drechslera Ulocladium and Botrytis.
- Haloperoxidases have also been isolated from bacteria such as Pseudomonas, e.g., P. pyrrocinia and Streptomyces, e.g., S. aureofaciens.
- the haloperoxidase is derivable from Curvularia sp., in particular Curvularia verruculosa or Curvularia inaequalis, such as C. inaequalis CBS 102.42 as described in WO 95/27046; or C. verruculosa CBS 147.63 or C. verruculosa CBS 444.70 as described in WO 97/04102; or from Drechslera hartlebii as described in WO 01/79459, Dendryphiella salina as described in WO 01/79458, Phaeotrichoconis crotalarie as described in WO 01/79461, or Geniculosporium sp. as described in WO 01/79460.
- Curvularia verruculosa or Curvularia inaequalis such as C. inaequalis CBS 102.42 as described in WO 95/27046; or C. verruculosa CBS 147.63 or C. verruculosa
- An oxidase according to the invention include, in particular, any laccase enzyme comprised by the enzyme classification EC 1.10.3.2, or any fragment derived therefrom exhibiting laccase activity, or a compound exhibiting a similar activity, such as a catechol oxidase (EC 1.10.3.1) , an o-aminophenol oxidase (EC 1.10.3.4) , or a bilirubin oxidase (EC 1.3.3.5) .
- Preferred laccase enzymes are enzymes of microbial origin.
- the enzymes may be derived from plants, bacteria or fungi (including filamentous fungi and yeasts) .
- Suitable examples from fungi include a laccase derivable from a strain of Aspergillus, Neurospora, e.g., N. crassa, Podospora, Botrytis, Collybia, Fomes, Lentinus, Pleurotus, Trametes, e.g., T. villosa and T. versicolor, Rhizoctonia, e.g., R. solani, Coprinopsis, e.g., C. cinerea, C. comatus, C. friesii, and C. plicatilis, Psathyrella, e.g., P. condelleana, Panaeolus, e.g., P.
- papilionaceus Myceliophthora, e.g., M. thermophila, Schytalidium, e.g., S. thermophilum, Polyporus, e.g., P. pinsitus, Phlebia, e.g., P. radiata (WO 92/01046) , or Coriolus, e.g., C. hirsutus (JP 2238885) .
- Suitable examples from bacteria include a laccase derivable from a strain of Bacillus.
- a laccase derived from Coprinopsis or Myceliophthora is preferred; in particular a laccase derived from Coprinopsis cinerea, as disclosed in WO 97/08325; or from Myceliophthora thermophila, as disclosed in WO 95/33836.
- the softener composition may comprise one or more surfactants, which may be cationic and/or non-ionic.
- the softener When included therein, the softener will usually comprise from about from about 1%to about 40%by weigh of a cationic surfactant, for example from about 0.5%to about 30%, in particular from about 1%to about 20%, from about 3%to about 10%, such as from about 3%to about 5%, from about 8%to about 12%or from about 10%to about 12%.
- a cationic surfactant for example from about 0.5%to about 30%, in particular from about 1%to about 20%, from about 3%to about 10%, such as from about 3%to about 5%, from about 8%to about 12%or from about 10%to about 12%.
- Non-limiting examples of cationic surfactants include bis (Acyloxyethyl) hydroxyethyl Methylammonium Methosulphate, Dipalmoylethyl hydroxyethylmonium methosulfate, dihydrogenated tallow hydroxyethylmonium methosulfate, distearoylethyl hydroxyethylmonium methosulfate, dioleoyl ethyl hydroxyethylmonium methosulfate alkyl quaternary ammonium compounds, alkoxylated quaternary ammonium (AQA) compounds, other ester quats, and combinations thereof.
- the cationic softeners bind by electrostatic attraction to the negatively charged groups on the surface of the textile and neutralize their charge and thereby impart lubricity.
- the softener composition will usually comprise from about 0.1%to about 10%by weight of a nonionic surfactant, for example from about 0.2%to about 5%, in particular from about 0.2%%to about 3%, such as from about 0.2%to about 0.5%, from about 0.5%to about 1%, or from about 1%to about 3%.
- a nonionic surfactant for example from about 0.2%to about 5%, in particular from about 0.2%%to about 3%, such as from about 0.2%to about 0.5%, from about 0.5%to about 1%, or from about 1%to about 3%.
- Non-limiting examples of nonionic surfactants include polysorbates, polyethylene glycol ethers, polyoxyethylene alkyl ethers, alcohol ethoxylates (AE or AEO) , alcohol propoxylates, propoxylated fatty alcohols (PFA) , alkoxylated fatty acid alkyl esters, such as ethoxylated and/or propoxylated fatty acid alkyl esters, alkylphenol ethoxylates (APE) , nonylphenol ethoxylates (NPE) , alkylpolyglycosides (APG) , alkoxylated amines, fatty acid monoethanolamides (FAM) , fatty acid diethanolamides (FADA) , ethoxylated fatty acid monoethanolamides (EFAM) , propoxylated fatty acid monoethanolamides (PFAM) , polyhydroxyalkyl fatty acid amides, or N-acyl N-alkyl derivatives of gluco
- the softener composition may also comprise about 0-10%by weight, such as about 0.1%to about 5%of a builder or co-builder, or a mixture thereof.
- the level of builder is typically 0-1%, particularly 0-0.5%.
- the builder and/or co-builder may particularly be a chelating agent that forms water-soluble complexes with Ca and Mg. Any builder and/or co-builder known in the art for use in softener may be utilized.
- Non-limiting examples of builders include zeolites, diphosphates (pyrophosphates) , triphosphates such as sodium triphosphate (STP or STPP) , carbonates such as sodium carbonate, soluble silicates such as sodium metasilicate, layered silicates (e.g., SKS-6 from Hoechst) , ethanolamines such as 2-aminoethan-1-ol (MEA) , diethanolamine (DEA, also known as 2, 2’-iminodiethan-1-ol) , triethanolamine (TEA, also known as 2, 2’, 2”-nitrilotriethan-1-ol) , and (carboxymethyl) inulin (CMI) , and combinations thereof.
- zeolites such as 2-aminoethan-1-ol (MEA) , diethanolamine (DEA, also known as 2, 2’-iminodiethan-1-ol) , triethanolamine (TEA, also known as 2, 2’, 2”-nitrilot
- the softener composition may also comprise 0-5%by weight, such as about 0%to about 2%, of a detergent co-builder.
- the softener composition may include a co-builder alone, or in combination with a builder, for example a zeolite builder.
- co-builders include homopolymers of polyacrylates or copolymers thereof, such as poly (acrylic acid) (PAA) or copoly (acrylic acid/maleic acid) (PAA/PMA) .
- Further non-limiting examples include citrate, chelators such as aminocarboxylates, aminopolycarboxylates and phosphonates, and alkyl-or alkenylsuccinic acid.
- NTA 2, 2’, 2”-nitrilotriacetic acid
- EDTA ethylenediaminetetraacetic acid
- DTPA diethylenetriaminepentaacetic acid
- IDS iminodisuccinic acid
- EDDS ethylenediamine-N, N’-disuccinic acid
- MGDA methylglycinediacetic acid
- GLDA glutamic acid-N, N-diacetic acid
- HEDP ethylenediaminetetra (methylenephosphonic acid)
- DTMPA or DTPMPA diethylenetriaminepentakis (methylenephosphonic acid)
- EDG 2, 2’, 2”-nitrilotriacetic acid
- ASMA aspartic acid-N-monoacetic acid
- ASMA aspartic acid-N-monoacetic acid
- ASMA aspartic acid-N, N-diacetic acid
- the softener composition may comprise 0-10%by weight, such as 0.5-5%, 2-5%, 0.5-2%or 0.2-1%of a polymer. Any polymer known in the art for use in softeners may be utilized.
- the polymer may function as a co-builder as mentioned above, or may provide anti redeposition, fiber protection, preventing color loss and greying, soil release, dye transfer inhibition, anti-foaming properties, perfume encapsulation and lubricity.
- Some polymers may have more than one of the above-mentioned properties and/or more than one of the below-mentioned motifs.
- Exemplary polymers include polyquaterniums, melamine polymers, siloxanes, silicones, carboxymethyl) cellulose (CMC) , poly (vinyl alcohol) (PVA) , poly (vinylpyrrolidone) (PVP) , poly (ethyleneglycol) or poly (ethylene oxide) (PEG) , ethoxylated poly (ethyleneimine) , carboxymethyl inulin (CMI) , and polycarboxylates such as PAA, PAA/PMA, poly-aspartic acid, and lauryl methacrylate/acrylic acid copolymers , hydrophobically modified CMC (HM-CMC) , copolymers of terephthalic acid and oligomeric glycols, copolymers of poly (ethylene terephthalate) and poly (oxyethene terephthalate) (PET-POET) , PVP, poly (vinylimidazole) (PVI) , poly (vinylpyridine
- exemplary polymers include sulfonated polycarboxylates, polyethylene oxide and polypropylene oxide (PEO- PPO) and diquaternium ethoxy sulfate.
- PEO- PPO polypropylene oxide
- diquaternium ethoxy sulfate diquaternium ethoxy sulfate.
- Other exemplary polymers are disclosed in, e.g., WO 2006/130575. Salts of the above-mentioned polymers are also contemplated.
- the softener compositions may comprise one or more perfumes in a free form or encapsulated. Any fragrance, perfume or perfume oil known in the art for use in softeners may be utilized. Suitable perfume ingredients may include butylphenyl methylpropional, geraniol, benzyl salicylate, hexyl cinnamal, amyl cinnamal, limonene, benzisothiazolinone, alpha isomethyl ionone, linalool.
- any other softener components known in the art for use in softener compositions may also be utilized.
- Other optional softener components include solvents (including isopropyl alcohol, propylene glycol, alkane/cycloalkane) , anti-shrink agents, anti-soil redeposition agents, anti-wrinkling agents, bactericides, preservatives (including benzisothiazolinone, methylisothiazolinone and/or lactic acid) , binders, dyes, enzyme stabilizers (including boric acid, borates, CMC, and/or polyols such as propylene glycol) , emulsion stabilizers, antifoam agents (including dimethicone) , skin conditioning agents (including caprylic/capric glycerides, ethylhexyl stearate, or cocos oil , either alone or in combination. Any adjunct materials known in the art for use in softeners may be utilized. The choice of such ingredients is
- E1 Use of an enzyme having cellulase activity in a softener composition for improving breathability and/or stain resistance of a textile.
- said enzyme is a cellulase having at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%or 100%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- said softener composition comprises a cationic surfactant, such as esterquats.
- said softener composition has a pH of at least 2.0, such as at least 2.4, such as at least 3.0.
- a softener composition for improving breathability and/or stain resistance of a textile wherein said softener composition comprises a family GH45 cellulase, preferably a cellulase having at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%or 100%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- a method for improving breathability and/or stain resistance of a textile comprising contacting said textile with an enzyme having cellulase activity and a softener composition during a rinse cycle such as a laundry rinse cycle.
- E12 The method according to any one of embodiments 10-11, wherein said enzyme is a cellulase having at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%or 100%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- SEQ ID NO: 4 Cellulase A (SEQ ID NO: 4) , available from Novozymes A/S, Bagsvaerd, Denmark.
- Cellulase B (SEQ ID NO: 6) , available from Novozymes A/S, Bagsvaerd, Denmark.
- Detergent Model N detergent, dosage: 2g/L
- Softener Green softener, dosage: 65g/wash.
- CN-11 cotton textile (bleached woven cotton, purchased from CFT company) , cut into 25cm x 25cm.
- Washing Machine used Panasonic XQB75-H7231.
- Washing procedure 4 pieces of CN-11 textile (25cm x 25cm) were washed for 10 consecutive cycles which were performed in the defined washing conditions with drying at room temperature ( ⁇ 25°C) for overnight, in between every two of the wash cycles and after the last wash. Softener and cellulase were added in the last rinse step. Breathability as well as the stain resistance of the washed textiles was evaluated according to the procedures described below.
- breathability of the washed textiles was evaluated according to steps below.
- Cellulase used SEQ ID NO: 4, dosed at 0.35 wt%based on softener, or 89ppm in wash liquor.
- Polymer A A commercial biopolymer (referred to as “Polymer A” in the present example) was included in the present invention to compare with cellulase enzyme. Polymer A is claimed to have similar benefits as a cellulase and can protect garments and fabrics from damage, color loss and greying in both concentrated and diluted softener product. This polymer was dosed at 0.35 wt%.
- Condition A refers to the textile washed (i.e., rinsed) with softener only (no celluase or polymer added) .
- Condition B refers to the textile washed with softener and 0.35 wt%celluase (SEQ ID NO: 4) .
- Condition C refers to the textile washed with softener and 0.35 wt%Polymer A. It can be seen that, the textiles washed with cellulase was less soiled by both types of cosmetics (lipstick and liquid foundation) , compared to those washed with softener only or washed with Polymer A. The results indicated that the stain resistance of the textile washed with celluase was improved.
- Example 2b Lipstick stain resistance test by mimicking real life scenario
- Example 2b The stain resistance was further evaluated by mimicking a real-life scenario how a lipstick stain contaminates a textile.
- the dosage of cellulases used in Example 2b was as below:
- Cellulase A SEQ ID NO: 4, 0.4 wt%based on softener dosed (102 ppm in wash liquor) .
- Cellulase B SEQ ID NO: 6, 0.2 wt%based on softener dosed (86 ppm in wash liquor) .
- Textiles were washed and dried in the same way as that in Example 1.
- a female volunteer was asked to put one piece of washed textile onto her lips applied with lipstick with the left hand and keep the textile on her lips for 5 seconds with no additional pressure. Then the textile was removed and subjected to visual check regarding the area and the intensity of the stain (lip mark) left on the textile. The stained textile was also photographed as shown in Figure 4.
- Condition D refers to the textile washed (i.e., rinsed) with softener only (no celluase added) .
- Condition E refers to the textile washed with softener and 0.4 wt%celluase A (SEQ ID NO: 4) .
- Condition F refers to the textile washed with softener and 0.2 wt%celluase B (SEQ ID NO: 6) .
- Figure 4 confirmed that textiles washed with cellulase possess an improved stain resistance compared to those washed without cellulase. As a result, by washing textiles e.g. clothes with cellulase-containing softener can prevent or reduce the contaminations by everyday stains during using e.g. wearing and thus improves the durability of textiles.
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Abstract
Provided is use of enzymes for improving breathability and/or improving stain resistance of a textile. Provided is a softener composition as well as a method for improvement of breathability and/or improvement of stain resistance of a textile.
Description
The present invention concerns the use of enzymes, in particular enzymes having cellulase activity, for improving breathability and/or stain resistance of a textile, wherein the use is in a softener.
Reference to a Sequence Listing
This application contains a Sequence Listing in computer readable form. The computer readable form is incorporated herein by reference.
It has been known to use cellulases and other enzymes in laundry detergents. Softeners are often used in the rinse cycle following a normal detergent wash cycle to make the feel of the clothes smoother/softer. Compared the use of enzymes in a wash cycle, the use in a rinse cycle, e.g., together with a softener has apparently not been spread so far. One of the reasons may be the rinse cycle, compared to the wash cycle, is typically of shorter duration and lower temperatures. Thus, there is a concern around the effectiveness of enzymes, e.g., cellulases use in the rinse cycle. On the other hand, there is another concern around potential risk for fabric damage if too high activity cellulase are used in the rinse cycle.
The key function of softeners is to coat the surface of a fabric with chemical compounds, such as a cationic surfactant, to make fabrics feel smooth and soft. However, such compounds may decrease e.g. the breathability of a textile. As a result, the physiological comfort of clothes is impaired.
One the other hand, it is often seen in daily life that textiles are stained with various stains during use. For example, tablecloths are easily contaminated with food stains, such as greasy stains. Clothes may also be unintentionally soiled with cosmetic stains (e.g. lipstick and foundation) when they are put on and taken off. These stains cause frequent washing of textiles and eventually reduce the durability of textiles. In addition, these stains are often difficult to be totally removed by a detergent, as a result, clothes contaminated by such stains may eventually have to be throw away even they may only be worn for just one or two times.
Therefore, there remains a need to improve the breathability and/or stain resistance of a textile washed by a fabric conditioner e.g. a softener, without compromising the softeners properties of making fabrics feel smooth and soft.
In addressing the above shortcomings in the prior art, the inventors found in a surprising manner that the addition of an enzyme having cellulase activity to softener compositions can improve the breathability and/or stain resistance of textiles.
Accordingly, one aspect of the present invention relates to the use of an enzyme having cellulase activity in a softener composition for improving breathability of a textile.
In another aspect, the present invention also relates to the use of an enzyme having cellulase activity in a softener composition for improving stain resistance of a textile.
In yet another aspect, the present invention provides a softener composition for improving breathability and/or stain resistance of a textile, wherein said softener composition comprises an enzyme having cellulase activity and a cationic surfactant, preferably, said enzyme is a family GH45 cellulase, and more preferably said enzyme is a cellulase having at least 60%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
In a further aspect, the present invention relates to a method for improving breathability and/or stain resistance of a textile comprising contacting said textile with an enzyme having cellulase activity and a softener composition during a rinse cycle such as a laundry rinse cycle.
The details, examples and preferences provided in relation to any one or more of the stated aspects of the present invention will be further described herein and apply equally to all aspects of the present invention. Any combination of the embodiments, examples and preferences described herein below in all possible variations thereof is encompassed by the present invention unless otherwise indicated herein, or otherwise clearly contradicted by context.
Overview of Sequences
SEQ ID NO: 1 is an enzyme having cellulase activity from Bacillus sp.
SEQ ID NO: 2 is an enzyme having cellulase activity from Sordaria fimicola.
SEQ ID NO: 3 is an enzyme having cellulase activity from Humicola insolens.
SEQ ID NO: 4 is an enzyme having cellulase activity from Thielavia terrestris.
SEQ ID NO: 5 is an enzyme having cellulase activity from Staphylotrichum cocosporum.
SEQ ID NO: 6 is an enzyme having cellulase activity from Neurospora tetrasperma.
Definitions
As used herein, the singular forms "a", "an", and "the"are intended to include the plural forms as well, unless the context clearly indicates otherwise.
If not indicated otherwise, all references to percentages in relation to the disclosed compositions relate to wt%relative to the total weight of the respective composition.
Cellulolytic enzyme or cellulase: The term “cellulolytic enzyme” or “cellulase” means one or more (e.g., several) enzymes that hydrolyze a cellulosic material. Such enzymes include endoglucanase (s) , cellobiohydrolase (s) , beta-glucosidase (s) , or combinations thereof. The two basic approaches for measuring cellulolytic activity include: (1) measuring the total cellulolytic activity, and (2) measuring the individual cellulolytic activities (endoglucanases, cellobiohydrolases, and beta-glucosidases) as reviewed in Zhang et al., Outlook for cellulase improvement: Screening and selection strategies, 2006, Biotechnology Advances 24: 452-481. Total cellulolytic activity is usually measured using insoluble substrates, including Whatman №1 filter paper, microcrystalline cellulose, bacterial cellulose, algal cellulose, cotton, pretreated lignocellulose, etc. The most common total cellulolytic activity assay is the filter paper assay using Whatman №1 filter paper as the substrate. The assay was established by the International Union of Pure and Applied Chemistry (IUPAC) (Ghose, 1987, Measurement of cellulase activities, Pure Appl. Chem. 59: 257-68) .
Cellulolytic enzyme activity may be determined by measuring the increase in hydrolysis of a cellulosic material by cellulolytic enzyme (s) under the following conditions: 1-50 mg of cellulolytic enzyme protein/g of cellulose in PCS (pretreated corn stover) or other pretreated cellulosic material for 3-7 days at a suitable temperature, e.g., 50℃, 55℃, or 60℃, compared to a control hydrolysis without addition of cellulolytic enzyme protein. Typical conditions are 1 ml reactions, washed or unwashed PCS, 5%insoluble solids, 50 mM sodium acetate pH 5, 1 mM MnSO4, 50℃, 55℃, or 60℃, 72 hours, sugar analysis byHPX-87H column (Bio-Rad Laboratories, Inc., Hercules, CA, USA) .
Cellulolytic enzyme activity or cellulase activity may be also determined by the method described in Assay I of the present invention. However, any other method known in the art may also be used to determine the cellulase activity.
Family GH45 cellulase: the term “family GH45 cellulase” as used herein, refers to Glycosyl hydrolases that catalyze the hydrolysis of the glycosyl bond. There are over 100 classes of Glycosyl hydrolases which have been classified, see Henrissat et al. (1991 ) , A classification of glycosyl hydrolases based on amino-acid sequence similarities, J. Biochem. 280: 309-316 and the CAZY website at www. cazy. org. The glycoside hydrolases of family 45 (GH45) have so far been identified as endoglucanase (EC 3.2.1.4) . Within the definition falls enzymes which are commonly known as “cellulases” . Such enzymes comprise also enzymes that may be known as endoglucananses.
Fragment: The term “fragment” means a polypeptide having one or more amino acids absent from the amino and/or carboxyl terminus of a mature polypeptide main; wherein the fragment has enzyme activity. In one aspect, a fragment contains at least 85%, e.g., at least 90%or at least 95%of the amino acid residues of the mature polypeptide of an enzyme.
Sequence identity: The relatedness between two amino acid sequences or between two nucleotide sequences is described by the parameter “sequence identity” .
For purposes of the present invention, the sequence identity between two amino acid sequences is determined as the output of “longest identity” using the Needleman-Wunsch algorithm (Needleman and Wunsch, 1970, J. Mol. Biol. 48: 443-453) as implemented in the Needle program of the EMBOSS package (EMBOSS: The European Molecular Biology Open Software Suite, Rice et al., 2000, Trends Genet. 16: 276-277) , preferably version 6.6.0 or later. The parameters used are a gap open penalty of 10, a gap extension penalty of 0.5, and the EBLOSUM62 (EMBOSS version of BLOSUM62) substitution matrix. In order for the Needle program to report the longest identity, the nobrief option must be specified in the command line. The output of Needle labeled “longest identity” is calculated as follows:
(Identical Residues x 100) / (Length of Alignment –Total Number of Gaps in Alignment)
Variant: The term “variant” means a polypeptide having enzyme activity comprising an alteration, i.e., a substitution, insertion, and/or deletion, at one or more (e.g., several) positions. A substitution means replacement of the amino acid occupying a position with a different amino acid; a deletion means removal of the amino acid occupying a position; and an insertion means adding an amino acid adjacent to and immediately following the amino acid occupying a position.
Textile: The term “textile” as it is used herein refers to any textile material including yarns, yarn intermediates, fibers, non-woven materials, natural materials, synthetic materials, and any other textile material, fabrics made of these materials and products made from fabrics (e.g., garments and other articles) . The textile or fabric may be in the form of knits, wovens, denims, non-wovens, felts, yarns, and towelling. The textile may be cellulose based such as natural cellulosics, including cotton, flax/linen, jute, ramie, sisal or coir or manmade cellulosics (e.g. originating from wood pulp) including viscose/rayon, cellulose acetate fibers (tricell) , lyocell or blends thereof. The textile or fabric may also be blends or mixtures of cellulose based and non-cellulose based fibers. Examples of blends are mixtures of cotton and/or rayon/viscose with one or more companion material such as wool, synthetic fiber (e.g. polyamide fiber, acrylic fiber, polyester fiber, polyvinyl chloride fiber, polyurethane fiber, polyurea fiber, aramid fiber) , and/or cellulose-containing fiber (e.g. rayon/viscose, ramie, flax/linen, jute, cellulose acetate fiber, lyocell) . Fabric or textile may be conventional washable laundry, for example stained household laundry. When the term fabric or garment is used it is intended to include the broader term textiles as well.
Breathability: The breathability of a textile or a fabric refers to the ability of a fabric to allow moisture vapor to pass through the textile/fabric. It is an essential contributing property to thermal and physiological comfort of clothing, and is vital in filtration and medical textiles as well. Good breathability is crucial in many areas of textiles, but particularly in clothing. For the purpose of the present invention, the breathability may be determined by the method described in Example 1.
Stain resistance: The term “stain resistance” (or “stain/soil repellency” ) refers to a textile’s ability to withstand discoloration or staining caused by contacting with liquids (e.g. a
foundation liquid) and/or solid surfaces e.g. a surface of a lipstick. For example, a liquid stain may occur as a result of a fiber being hydrophilic where the liquid gets absorbed by the fiber, and on drying the fiber becomes discolored i.e. stained. One of the basic objectives of stain resistance is therefore to prevent or repel e.g. liquid absorption to both fiber and/or fabric surfaces. For the purpose of the present invention, the stain resistance of a textile may be determined by the method described in Example 2 of the present invention.
Detergent component: The term “detergent component” (or “cleaning component” ) is defined herein to mean the types of chemicals which can be used in detergent compositions for laundry. Examples of detergent components are surfactants, builders, chelators or chelating agents, bleach system or bleach components, polymers, fabric conditioners, foam boosters, suds suppressors, dyes, perfume, tannish inhibitors, bactericides, fungicides, soil suspending agents, anti-corrosion agents, enzyme inhibitors or stabilizers, enzyme activators, transferase (s) , hydrolytic enzymes, oxido reductases, blueing agents and fluorescent dyes, antioxidants, and solubilizers.
Detergent Composition: The term “detergent composition” (or “cleaning composition” ) refers to compositions that find use in the removal of undesired compounds from items to be cleaned, such as textiles. The detergent composition may be used to e.g. clean textiles for both household cleaning and industrial cleaning. The term encompasses any materials/compounds selected for the particular type of detergent composition desired and the form of the product (e.g., liquid, gel, powder, granulate, paste, or spray compositions) and includes, but is not limited to, detergent compositions such as liquid and/or solid laundry detergents and fine fabric detergents; fabric fresheners; and textile and laundry pre-spotters/pretreatment. The detergent composition may contain one or more detergent enzymes (such as proteases, amylases, cellulases, lipases, cutinases, xyloglucanases, pectinases, pectin lyases, xanthanases, peroxidases, haloperoxygenases, catalases, mannanases, nucleases or any mixture thereof) , and/or detergent adjunct ingredients such as surfactants, builders, chelators or chelating agents, bleach system or bleach components, polymers, fabric conditioners, foam boosters, suds suppressors, dyes, perfume, tannish inhibitors, optical brighteners, bactericides, fungicides, soil suspending agents, anti-corrosion agents, enzyme inhibitors or stabilizers, enzyme activators, transferases, hydrolytic enzymes, oxido reductases, bluing agents and fluorescent dyes, antioxidants, and solubilizers.
Fabric softener: A fabric softener (also called “fabric conditioner” or solely “softener” ) is a composition that is typically applied to laundry process during the rinse cycle in a washing machine or when washing by hand. Fabric softeners are available as solutions and solids, and may also be impregnated in dryer sheets used in a clothes dryer.
Fabric softener agent: A fabric softener agent (or a softener agent) is an ingredient that is comprised in fabric softener compositions such as chemical compounds that are electrically charged. These compounds cause threads in the fabric to lift up from the surface of the textile and thereby gives the fabric a softer feel of the textile. In one embodiment the fabric softener
agent is one or more cationic softeners. The cationic softeners bind by electrostatic attraction to the negatively charged groups on the surface of the textile and neutralize their charge and thereby impart lubricity.
Laundering process: The term “laundering process” relates to both household laundering and industrial laundering and means the process of treating textiles with a solution containing a cleaning component or a cleaning composition e.g. a laundry detergent composition. The laundering process can for example be carried out using e.g. a household or an industrial washing machine or can be carried out by hand. In the present invention, the laundering process may comprise wash cycle and rinse cycle.
Wash cycle: The term “wash cycle” is defined herein as a washing operation wherein textile is exposed to the wash liquor for a period of time by circulating the wash liquor and textile in e.g. a washing machine. A wash cycle may be repeated one, two, three, or even four times at the same or at different temperatures. The wash cycle is often followed by a rinse cycle and finally a centrifugation cycle where water is removed from the textile. It is known for the skilled person to determine which is the wash cycle during laundry wash.
Wash liquor: The term “wash liquor” is intended to mean the solution or mixture of water and other detergent ingredients such as surfactants and optionally including enzymes that may be used in the wash cycle.
Rinse cycle: The term “rinse cycle” is defined herein as a rinsing operation wherein textile is exposed to water for a period of time by circulating the water and optionally mechanically treat the textile in order to rinse the textile and finally the superfluous water is removed. A rinse cycle is normally of shorter duration compared a wash cycle and may be repeated one, two, three, four, five or even six times at the same or at different temperatures.
The present invention will now be described in more detail, with reference to the appended drawings showing an example embodiment of the invention, wherein:
Figure 1 schematically illustrates the setup for measuring the breathability of a textile.
Figure 2 schematically illustrates the process for measuring the stain resistance of a textile
Figure 3 shows the stain resistance of textiles washed with and without cellulase of the present invention.
Figure 4 shows the stain resistance of textiles washed with and without cellulase of the present invention.
The present invention relates to the use of an enzyme e.g. a cellulase for improving breathability of a textile by adding the enzyme to a softener. The invention also relates to a method for improving breathability of a textile comprising contacting said textile, with an enzyme and a softener. The present inventors have found that by adding an enzyme having cellulase activity to a softener, the breathability of the textile is improved as compared to when using a softener without said enzyme. A softener is typically applied to laundry process during the rinse cycle in a washing machine or by hand wash. Typically, fabric softeners are available as solutions and solids, and may also be permeated in dryer sheets used in a clothes dryer.
When improving the breathability of a textile, it has the benefit that items such as clothes, can conduct heat away from the body faster and thus reduces the uncomfortable feeling of the wet skin when e.g., sweats. As a result, textiles e.g. clothes washed by cellulase-containing softener can not only maintain the smooth and soft property, but also provide a comfortable feeling especially when people wear them in a hot and humid environment or when they do sports.
It is often seen in daily life that textiles are stained with various stains during use. For example, tablecloths are easily contaminated with food stains, especially greasy stains. Also, clothes can easily be stained with cosmetic stains (e.g. lipstick and foundation) when they are put on and taken off. These stains cause frequent washing of textiles and eventually reduce the durability of textiles.
Thus, the present invention also relates to the use of an enzyme for improving stain resistance of a textile by adding said enzyme to a softener. The invention further relates to a method for improving stain resistance of a textile comprising contacting said textile with an enzyme and a softener. The inventors of the present invention have surprisingly found that, by addition of an enzyme having cellulase activity to a softener composition, washed textiles become less likely to be stained, in other words, washed textiles are more resistant to daily stains such as cosmetic stains, as compared to using a softener without said enzyme. As a result, textiles e.g. clothes washed by cellulase-containing softener can not only maintain the smooth and soft property, but also avoid or reduce the contamination by everyday stains during use e.g. wearing such textiles. In other words, the stain resistance towards daily life stains, particularly cosmetic stains (such as lipsticks, liquid foundations) , of a textile is improved after being washed by a softener containing an enzyme having cellulase activity. Cosmetics are constituted mixtures of chemical compounds (e.g. containing functional groups such as Si-O, -COOH, -NH-, -OH structures) derived from either natural sources, or synthetically created ones. Cosmetics designed to enhance or alter one’s appearance (makeup) can be used to conceal blemishes, enhance one’s natural features (such as the eyebrows and eyelashes) , add color to a person's face, provide skin care benefits, or change the appearance of the face entirely to resemble a different person, creature or object.
Enzymes having cellulase activity useful in exercise of the present invention may be selected from glycoside hydrolase family 5 (GH5) , glycoside hydrolase family 7 (GH7) , glycoside
hydrolase family 12 (GH12) , glycoside hydrolase family 44 (GH44) and glycoside hydrolase family 45 (GH45) , preferably family GH45 cellulases.
In a particular embodiment, the enzyme used in the softener composition is a family GH45 cellulase.
It has not previously been shown that using a family GH45 cellulase in softeners can improve the breathability and/or stain resistance of a fabric. As can be seen in the examples of the present invention, both the water breathability and stain resistance of the washed textiles are improved when a cellulase has been added to the softener.
In one of the examples, the breathability of the textile has been evaluated as the speed that the vapor generated by a humidifier passes through a plastic tube having a length of 30cm and a diameter of 7cm, as described in Example 1. Better breathability allows the vapor to pass through the plastic tube faster. In a further embodiment, the evaluation comprises the step of pre-washing the textile multiple times e.g. 5, 10 or 15 times before measuring breathability, and optionally the textile has been tumble dried in-between each wash.
In another example, the stain resistance of a fabric or a textile is evaluated by measuring remission value at 460nm (REM460 or R460) . Higher R460 value corresponds to clearer textiles, accordingly suggests/indicates a stronger resistance of the textile towards relevant stains. In a further embodiment, the assay comprises the step of pre-washing the textile multiple times e.g. 5, 10 or 15 times before evaluation of stain resistance, and optionally the textile has been tumble dried in-between each wash.
In another example, the stain resistance of a fabric or a textile is evaluated by a group of trained panelists. The panelists were asked to score the washed textiles in terms of stained level. For example, higher score will be assigned to a textile with more stains.
In the present invention, as shown in Example 2, the stain resistance of a textile was evaluated by directly comparing the textiles after staining.
In one embodiment, the enzyme having cellulase activity is a cellulase having at least 60%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
The cellulase may be any one having at least 60%sequence identity to SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5 or SEQ ID NO: 6, preferably the cellulase has at least 65%, such as 70%, such as 75%, such as 80%, such as 85%, such as 90%, such as 91%, such as 92%, such as 93%, such as 94%, such as 95%, such as 96%, such as 97%, such as 98%, such as 99%, or such as 100%, sequence identity to SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5 or SEQ ID NO: 6, or a fragment thereof having cellulase activity.
In one embodiment, the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 1, or a fragment thereof having cellulase activity. In a specific embodiment, said enzyme is from Bacillus sp.
In another embodiment, the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 2, or a fragment thereof having cellulase activity. In a specific embodiment, said enzyme is from Sordania, preferably from Sordania fimicola.
In another embodiment, the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 3, or a fragment thereof having cellulase activity. In a specific embodiment, said enzyme is from Humicola, preferably from Humicola insolens.
In another embodiment, the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 4, or a fragment thereof having cellulase activity. In a specific embodiment, said enzyme is from Thielavia, preferably from Thielavia terrestris.
In another embodiment, the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 5, or a fragment thereof having cellulase activity. In a specific embodiment, said enzyme is from Staphylotrichum, preferably from Staphylotrichum cocosporum.
In another embodiment, the celluase is a polypeptide having at least 80%, at least 85%, at least 90%, at least 95%, at least 98%, at least 99%or 100%sequence identity to the polypeptide of SEQ ID NO: 6, or a fragment thereof having cellulase activity. In a specific embodiment, said enzyme is from Neurospora, preferably from Neurospora tetrasperma.
Other suitable cellulases are the alkaline or neutral cellulases having colour care benefits. Examples of such cellulases are cellulases described in EP 0 495 257, EP 0 531 372, WO 96/11262, WO 96/29397, WO 98/08940. Other examples are cellulase variants such as those described in WO 94/07998, EP 0 531 315, US 5, 457, 046, US 5, 686, 593, US 5, 763, 254, WO 95/24471, WO 98/12307 and WO99/001544.
Other cellulases are endo-beta-1, 4-glucanase enzyme having a sequence of at least 97%identity to the amino acid sequence of position 1 to position 773 of SEQ ID NO: 2 of WO 2002/099091 or a family 44 xyloglucanase, which a xyloglucanase enzyme having a sequence of at least 60%identity to positions 40-559 of SEQ ID NO: 2 of WO 2001/062903.
Commercially available cellulases include CelluzymeTM, and CarezymeTM (Novozymes A/S) Carezyme PremiumTM (Novozymes A/S) , Celluclean TM (Novozymes A/S) , Celluclean ClassicTM (Novozymes A/S) , CellusoftTM (Novozymes A/S) , WhitezymeTM (Novozymes A/S) , ClazinaseTM, and Puradax HATM (Genencor International Inc. ) , and KAC-500 (B) TM (Kao Corporation) , 200 (Danisco/Dupont) , and2000 (Danisco/Dupont) .
The preparation of the enzyme having celluase activity as described herein can e.g. be performed as described in WO 2015/036579 (incorporated herein by reference) . The enzyme of the present invention may also be prepared by any method known in the art.
In particular embodiments of the present invention, the amount of cellulase enzyme that is effective in improving breathability and/or stain resistance of treated, e.g. laundered, textiles is in the range of 0.005 wt%to 3 wt%, preferably 0.01 wt%to 2 wt%, 0.1 wt%to 1.5 wt%or 0.2 wt%to 0.8 wt%, but in one embodiment, the cellulase enzyme is added in a concentration of at least 0.4 wt%of said softener composition.
In particular embodiments of the present invention, the amount of cellulase enzyme that is effective in improving breathability and/or stain resistance of treated, e.g. laundered, textiles may be in the range of 0.001 mg to 100 mg enzyme protein per liter of wash liquor, such as 0.1 mg to 50 mg enzyme protein, 1 mg to 30 mg enzyme protein or 2 mg to 10 mg enzyme protein, per liter of wash liquor.
A softener may also be termed “fabric softener” or even “fabric conditioner” and the components of such a softener, may differ in affinity to various fabrics. Some work better on cellulose-based fibers (i.e., cotton) , others have higher affinity to hydrophobic materials like nylon, polyethylene terephthalate, polyacrylonitrile, etc. Other silicone-based compounds, such as polydimethylsiloxane, work by lubricating the fibers. Derivatives with amine-or amide-containing functional groups may be included as well. These groups improve the softener's binding to fabrics.
As softeners are often hydrophobic, they commonly occur in the form of an emulsion. In the early formulations, manufactures used soaps as emulsifiers. The emulsions are usually opaque, milky fluids. However, there are also microemulsions, where the droplets of the hydrophobic phase may be substantially smaller. Microemulsions provide the advantage of increased ability of smaller particles to penetrate into the fibers.
The softener composition may contain a mixture of cationic and non-ionic surfactants as an emulsifier. Another approach is a polymeric network, an emulsion polymer.
In one embodiment, the softener composition comprises cationic surfactants, such as esterquats. Characteristically, the cations contain one or two long alkyl chains derived from fatty acids. Other cationic compounds can be derived from imidazolium, substituted amine salts, or quaternary alkoxy ammonium salts.
In one embodiment, the softener has a pH of at least 2.0, such as at least 2.4, such as at least 3.0. The softener to which the enzyme is added typically has a pH of 2.0 to 5.0, preferably in the range of 2.5 to 4.5, or even more preferred in the range of 3.0 to 3.5. Thus, the enzyme that is added to the softener is an enzyme that is stable at such pH. When the composition, such as the softener, to which the enzyme is added as a pH which is within the optimal pH range of the enzyme, said pH will not affect the enzyme in a negative way. Therefore, it is believed that the pH of the softener and the enzyme complement each other in their function. Thus, the enzyme will provide the stain resistance and/or improved breathability, whereas the pH of the softener will make sure that the surfactant works and bring softness to the treated fabric.
In one embodiment, the textile which has improved breathability and/or stain resistance when rinsed with a softener composition comprising an enzyme, preferably a family GH45 cellulase, wherein the textile has been pre-washed in a laundering process.
Often when laundering textile, such as clothes, the laundry process comprises a wetting step, i.e. where water is let in to the machine and the textile thereby gets wet, a washing step, i.e. where the laundry detergent is added to the washing liquid, a rinse step or rinse cycle, i.e. where optionally a softener is added to the rinse liquid, and finally a centrifugation step, i.e. where the textile is centrifuged in order to relieve the textile for as much water as possible before the textile is dried.
In one embodiment, the cellulase of the present invention is added to the rinse step or rinse cycle together with a softener composition.
The textile contemplated in the present invention may be any pure form, such as 100%cotton, 100%polyester or the like, or it may be any blend or mixture of different types of textile, such as a mixture of at least 20%polyester and at least 40%cotton. Thus, in one embodiment, the textile is 100%cotton. In another embodiment, the textile is a mixture of 40%polyester and 60%cotton. In another embodiment, the textile is cotton.
The textile may have been pre-washed (treated) in a laundering process. The laundering process may be done at various temperatures depending on the textile, the level of dirt on the textile, or any other aspect that may be dependent on the temperature. The invention is not limited to any specific temperature. Thus, in one embodiment, the pre-washing has been done at a temperature of at least 5℃, such as at least 10 ℃, at least 15 ℃, at least 20 ℃, at least 25 ℃, at least 30 ℃, at least 35 ℃, at least 40 ℃, at least 45 ℃, at least 50 ℃ or at least 60 ℃.
In another aspect, the invention also relates to a softener composition for improving breathability and/or stain resistance of a textile, wherein said softener composition comprises an enzyme having cellulase activity and a cationic surfactant e.g. esterquats, and wherein preferably said enzyme is a family GH45 cellulase, and more preferably a cellulase having at least 60%, e.g., at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
The softener composition may further comprise a preservative and/or biocide. The preservative and/or biocide is selected from metholisothiazolinone or methylchlorisothiazolinone or a combination of metholisothiazolinone and methylchlorisothiazolinone. Metholisothiazolinone and methylchlorisothiazolinone have preserving effect and biocidal effect.
In the case of a liquid softener composition, adding an acid to the softener composition enables water-soluble metal salts to at least partially dissolve in the composition. The acid also helps to at least partially reduce the precipitation on hard surfaces during the rinse cycle. The acid may also stabilize the liquid softener composition against precipitation in the product prior to use.
In the case of a solid softener composition, adding an acid to the softener composition enables water-soluble metal salts, once released, to at least partially dissolve quickly in the wash
and/or rinse liquor of a laundry appliance so as to prevent insoluble material from forming and/or from depositing onto the surfaces, such as on textiles.
In one embodiment, more than one enzyme may be added to the softener. Thus, in addition to the cellulase enzyme for the improvement of breathability and/or stain resistance of a textile, one or more additional enzymes may be added to the softener composition. The one or more additional enzymes may be selected from the group consisting of proteases, amylases, lipases, cutinases, xyloglucanases, pectinases, pectin lyases, xanthanases, peroxidases, haloperoxygenases, catalases, mannanases, nucleases or any mixture thereof. The enzymes are described in further details below.
Suitable amylases which can be used in the rinse aid composition of the invention may be an alpha-amylase or a glucoamylase and may be of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Amylases include, for example, alpha-amylases obtained from Bacillus, e.g., a special strain of Bacillus licheniformis, described in more detail in GB 1, 296, 839.
Suitable amylases include amylases having SEQ ID NO: 2 in WO 95/10603 or variants having 90%sequence identity to SEQ ID NO: 3 thereof. Preferred variants are described in WO 94/02597, WO 94/18314, WO 97/43424 and SEQ ID NO: 4 of WO 99/019467, such as variants with substitutions in one or more of the following positions: 15, 23, 105, 106, 124, 128, 133, 154, 156, 178, 179, 181, 188, 190, 197, 201, 202, 207, 208, 209, 211, 243, 264, 304, 305, 391, 408, and 444.
Different suitable amylases include amylases having SEQ ID NO: 6 in WO 02/010355 or variants thereof having 90%sequence identity to SEQ ID NO: 6. Preferred variants of SEQ ID NO: 6 are those having a deletion in positions 181 and 182 and a substitution in position 193.
Other amylases which are suitable are hybrid alpha-amylase comprising residues 1-33 of the alpha-amylase derived from B. amyloliquefaciens shown in SEQ ID NO: 6 of WO 2006/066594 and residues 36-483 of the B. licheniformis alpha-amylase shown in SEQ ID NO: 4 of WO 2006/066594 or variants having 90%sequence identity thereof. Preferred variants of this hybrid alpha-amylase are those having a substitution, a deletion or an insertion in one of more of the following positions: G48, T49, G107, H156, A181, N190, M197, I201, A209 and Q264. Most preferred variants of the hybrid alpha-amylase comprising residues 1-33 of the alpha-amylase derived from B. amyloliquefaciens shown in SEQ ID NO: 6 of WO 2006/066594 and residues 36-483 of SEQ ID NO: 4 are those having the substitutions: M197T; H156Y+A181T+N190F+A209V+Q264S; or G48A+T49I+G107A+H156Y+A181T+N190F+I201F+A209V+Q264S.
Further amylases which are suitable are amylases having SEQ ID NO: 6 in WO 99/019467 or variants thereof having 90%sequence identity to SEQ ID NO: 6. Preferred variants of SEQ ID NO: 6 are those having a substitution, a deletion or an insertion in one or more of the following positions: R181, G182, H183, G184, N195, I206, E212, E216 and K269. Particularly
preferred amylases are those having deletion in positions R181 and G182, or positions H183 and G184.
Additional amylases which can be used are those having SEQ ID NO: 1, SEQ ID NO: 3, SEQ ID NO: 2 or SEQ ID NO: 7 of WO 96/023873 or variants thereof having 90%sequence identity to SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3 or SEQ ID NO: 7. Preferred variants of SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3 or SEQ ID NO: 7 are those having a substitution, a deletion or an insertion in one or more of the following positions: 140, 181, 182, 183, 184, 195, 206, 212, 243, 260, 269, 304 and 476, using SEQ ID 2 of WO 96/023873 for numbering. More preferred variants are those having a deletion in two positions selected from 181, 182, 183 and 184, such as 181 and 182, 182 and 183, or positions 183 and 184. Most preferred amylase variants of SEQ ID NO: 1, SEQ ID NO: 2 or SEQ ID NO: 7 are those having a deletion in positions 183 and 184 and a substitution in one or more of positions 140, 195, 206, 243, 260, 304 and 476.
Other amylases which can be used are amylases having SEQ ID NO: 2 of WO 08/153815, SEQ ID NO: 10 in WO 01/66712 or variants thereof having 90%sequence identity to SEQ ID NO: 2 of WO 08/153815 or 90%sequence identity to SEQ ID NO: 10 in WO 01/66712. Preferred variants of SEQ ID NO: 10 in WO 01/66712 are those having a substitution, a deletion or an insertion in one of more of the following positions: 176, 177, 178, 179, 190, 201, 207, 211 and 264.
Other amylases are variants of SEQ ID NO: 1 of WO 2016/203064 having at least 75%sequence identity to SEQ ID NO: 1 thereof. Preferred variants are variants comprising a modification in one or more positions corresponding to positions 1, 54, 56, 72, 109, 113, 116, 134, 140, 159, 167, 169, 172, 173, 174, 181, 182, 183, 184, 189, 194, 195, 206, 255, 260, 262, 265, 284, 289, 304, 305, 347, 391, 395, 439, 469, 444, 473, 476, or 477 of SEQ ID NO: 1, wherein said alpha-amylase variant has a sequence identity of at least 75%but less than 100%to SEQ ID NO: 1.
Further suitable amylases are amylases having SEQ ID NO: 2 of WO 09/061380 or variants having 90%sequence identity to SEQ ID NO: 2 thereof. Preferred variants of SEQ ID NO: 2 are those having a truncation of the C-terminus and/or a substitution, a deletion or an insertion in one of more of the following positions: Q87, Q98, S125, N128, T131, T165, K178, R180, S181, T182, G183, M201, F202, N225, S243, N272, N282, Y305, R309, D319, Q320, Q359, K444 and G475. More preferred variants of SEQ ID NO: 2 are those having the substitution in one of more of the following positions: Q87E, R, Q98R, S125A, N128C, T131I, T165I, K178L, T182G, M201L, F202Y, N225E, R, N272E, R, S243Q, A, E, D, Y305R, R309A, Q320R, Q359E, K444E and G475K and/or deletion in position R180 and/or S181 or of T182 and/or G183. Most preferred amylase variants of SEQ ID NO: 2 are those having the substitutions:
N128C+K178L+T182G+Y305R+G475K;
N128C+K178L+T182G+F202Y+Y305R+D319T+G475K;
S125A+N128C+K178L+T182G+Y305R+G475K; or
S125A+N128C+T131I+T165I+K178L+T182G+Y305R+G475K wherein the variants are C-terminally truncated and optionally further comprises a substitution at position 243 and/or a deletion at position 180 and/or position 181.
Further suitable amylases are amylases having SEQ ID NO: 1 of WO13184577 or variants having 90%sequence identity to SEQ ID NO: 1 thereof. Preferred variants of SEQ ID NO:1 are those having a substitution, a deletion or an insertion in one of more of the following positions: K176, R178, G179, T180, G181, E187, N192, M199, I203, S241, R458, T459, D460, G476 and G477. More preferred variants of SEQ ID NO: 1 are those having the substitution in one of more of the following positions: K176L, E187P, N192FYH, M199L, I203YF, S241QADN, R458N, T459S, D460T, G476K and G477K and/or deletion in position R178 and/or S179 or of T180 and/or G181. Most preferred amylase variants of SEQ ID NO: 1 are those having the substitutions:
E187P+I203Y+G476K
E187P+I203Y+R458N+T459S+D460T+G476K
wherein the variants optionally further comprise a substitution at position 241 and/or a deletion at position 178 and/or position 179.
Further suitable amylases are amylases having SEQ ID NO: 1 of WO10104675 or variants having 90%sequence identity to SEQ ID NO: 1 thereof. Preferred variants of SEQ ID NO: 1 are those having a substitution, a deletion or an insertion in one of more of the following positions: N21, D97, V128, K177, R179, S180, I181, G182, M200, L204, E242, G477 and G478. More preferred variants of SEQ ID NO: 1 are those having the substitution in one of more of the following positions: N21D, D97N, V128I K177L, M200L, L204YF, E242QA, G477K and G478K and/or deletion in position R179 and/or S180 or of I181 and/or G182. Most preferred amylase variants of SEQ ID NO: 1 are those having the substitutions:
N21D+D97N+V128I
wherein the variants optionally further comprise a substitution at position 200 and/or a deletion at position 180 and/or position 181.
Other suitable amylases are the alpha-amylase having SEQ ID NO: 12 in WO01/66712 or a variant having at least 90%sequence identity to SEQ ID NO: 12. Preferred amylase variants are those having a substitution, a deletion or an insertion in one of more of the following positions of SEQ ID NO: 12 in WO01/66712: R28, R118, N174; R181, G182, D183, G184, G186, W189, N195, M202, Y298, N299, K302, S303, N306, R310, N314; R320, H324, E345, Y396, R400, W439, R444, N445, K446, Q449, R458, N471, N484. Particular preferred amylases include variants having a deletion of D183 and G184 and having the substitutions R118K, N195F, R320K and R458K, and a variant additionally having substitutions in one or more position selected from the group: M9, G149, G182, G186, M202, T257, Y295, N299, M323, E345 and A339, most preferred a variant that additionally has substitutions in all these positions.
Other examples are amylase variants such as those described in WO2011/098531, WO2013/001078 and WO2013/001087.
Commercially available amylases are DuramylTM, TermamylTM, FungamylTM, Stainzyme TM, Stainzyme PlusTM, NatalaseTM, Liquozyme X and BANTM (from Novozymes A/S) , and RapidaseTM, PurastarTM/EffectenzTM, Powerase, Preferenz S1000, Preferenz S100 and Preferenz S110 (from Genencor International Inc. /DuPont) .
Suitable proteases include those of bacterial, fungal, plant, viral or animal origin e.g. vegetable or microbial origin. Microbial origin is preferred. Chemically modified or protein engineered mutants are included. It may be an alkaline protease, such as a serine protease or a metalloprotease. A serine protease may for example be of the S1 family, such as trypsin, or the S8 family such as subtilisin. A metalloproteases protease may for example be a thermolysin from e.g. family M4 or other metalloprotease such as those from M5, M7 or M8 families.
The term "subtilases" refers to a sub-group of serine protease according to Siezen et al., Protein Engng. 4 (1991) 719-737 and Siezen et al. Protein Science 6 (1997) 501-523. Serine proteases are a subgroup of proteases characterized by having a serine in the active site, which forms a covalent adduct with the substrate. The subtilases may be divided into 6 sub-divisions, i.e. the Subtilisin family, the Thermitase family, the Proteinase K family, the Lantibiotic peptidase family, the Kexin family and the Pyrolysin family.
Examples of subtilases are those derived from Bacillus such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in; US7262042 and WO09/021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN’, subtilisin 309, subtilisin 147 and subtilisin 168 described in WO89/06279 and protease PD138 described in (WO93/18140) . Other useful proteases may be those described in WO92/175177, WO01/016285, WO02/026024 and WO02/016547. Examples of trypsin-like proteases are trypsin (e.g. of porcine or bovine origin) and the Fusarium protease described in WO89/06270, WO94/25583 and WO05/040372, and the chymotrypsin proteases derived from Cellumonas described in WO05/052161 and WO05/052146.
A further preferred protease is the alkaline protease from Bacillus lentus DSM 5483, as described for example in WO95/23221, and variants thereof which are described in WO92/21760, WO95/23221, EP1921147 and EP1921148.
Examples of metalloproteases are the neutral metalloprotease as described in WO07/044993 (Genencor Int. ) such as those derived from Bacillus amyloliquefaciens.
Examples of useful proteases are the variants described in: WO92/19729, WO96/034946, WO98/20115, WO98/20116, WO99/011768, WO01/44452, WO03/006602, WO04/03186, WO04/041979, WO07/006305, WO11/036263, WO11/036264, especially the variants with substitutions in one or more of the following positions: 3, 4, 9, 15, 24, 27, 42, 55, 59, 60, 66, 74, 85, 96, 97, 98, 99, 100, 101, 102, 104, 116, 118, 121, 126, 127, 128, 154, 156, 157, 158, 161, 164, 176, 179, 182, 185, 188, 189, 193, 198, 199, 200, 203, 206, 211, 212, 216, 218,
226, 229, 230, 239, 246, 255, 256, 268 and 269 wherein the positions correspond to the positions of the Bacillus Lentus protease shown in SEQ ID NO 1 of WO 2016/001449. More preferred the subtilase variants may comprise the mutations: S3T, V4I, S9R, S9E, A15T, S24G, S24R, K27R, N42R, S55P, G59E, G59D, N60D, N60E, V66A, N74D, N85S, N85R, , G96S, G96A, S97G, S97D, S97A, S97SD, S99E, S99D, S99G, S99M, S99N, S99R, S99H, S101A, V102I, V102Y, V102N, S104A, G116V, G116R, H118D, H118N, N120S, S126L, P127Q, S128A, S154D, A156E, G157D, G157P, S158E, Y161A, R164S, Q176E, N179E, S182E, Q185N, A188P, G189E, V193M, N198D, V199I, Y203W, S206G, L211Q, L211D, N212D, N212S, M216S, A226V, K229L, Q230H, Q239R, N246K, N255W, N255D, N255E, L256E, L256D T268A, R269H. The protease variants are preferably variants of the Bacillus Lentus proteaseshown in SEQ ID NO 1 of WO 2016/001449, the Bacillus amylolichenifaciens protease (BPN’) shown in SEQ ID NO 2 of WO2016/001449. The protease variants preferably have at least 80 %sequence identity to SEQ ID NO 1 or SEQ ID NO 2 of WO 2016/001449.
A protease variant comprising a substitution at one or more positions corresponding to positions 171, 173, 175, 179, or 180 of SEQ ID NO: 1 of WO2004/067737, wherein said protease variant has a sequence identity of at least 75%but less than 100%to SEQ ID NO: 1 of WO2004/067737.
Suitable commercially available protease enzymes include those sold under the trade namesDuralaseTm, DurazymTm, Ultra, Ultra, Ultra,
Ultra, Blaze100T, Blaze125T, Blaze150T, and (Novozymes A/S) , those sold under the tradename PurafectPurafect
Excellenz P1000TM, Excellenz P1250TM, Preferenz P100TM, Purafect Preferenz P110TM, Effectenz P1000TM, Effectenz P1050TM, PurafectEffectenz P2000TM, and (Danisco/DuPont) , AxapemTM (Gist-Brocases N.V. ) , BLAP (sequence shown in Figure 29 of US5352604) and variants hereof (Henkel AG) and KAP (Bacillus alkalophilus subtilisin) from Kao.
Suitable mannanases include those of bacterial or fungal origin. Chemically or genetically modified mutants are included. The mannanase may be an alkaline mannanase of Family 5 or 26. It may be a wild-type from Bacillus or Humicola, particularly B. agaradhaerens, B. licheniformis, B. halodurans, B. clausii, or H. insolens. Suitable mannanases are described in WO 1999/064619. A commercially available mannanase is Mannaway (Novozymes A/S) .
Suitable peroxidases/oxidases include those of plant, bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinus, e.g., from C. cinereus, and variants thereof as those described in WO 93/24618, WO 95/10602, and WO 98/15257. Commercially available peroxidases include GuardzymeTM (Novozymes A/S) .
Suitable lipases and cutinases include those of bacterial or fungal origin. Chemically modified or protein engineered mutant enzymes are included. Examples include lipase from Thermomyces, e.g. from T. lanuginosus (previously named Humicola lanuginosa) as described in EP258068 and EP305216, cutinase from Humicola, e.g. H. insolens (WO96/13580) , lipase from strains of Pseudomonas (some of these now renamed to Burkholderia) , e.g. P. alcaligenes or P. pseudoalcaligenes (EP218272) , P. cepacia (EP331376) , P. sp. strain SD705 (WO95/06720 &WO96/27002) , P. wisconsinensis (WO96/12012) , GDSL-type Streptomyces lipases (WO10/065455) , cutinase from Magnaporthe grisea (WO10/107560) , cutinase from Pseudomonas mendocina (US5, 389, 536) , lipase from Thermobifida fusca (WO11/084412) , Geobacillus stearothermophilus lipase (WO11/084417) , lipase from Bacillus subtilis (WO11/084599) , and lipase from Streptomyces griseus (WO11/150157) and S. pristinaespiralis (WO12/137147) .
Other examples are lipase variants such as those described in EP407225, WO92/05249, WO94/01541, WO94/25578, WO95/14783, WO95/30744, WO95/35381, WO95/22615, WO96/00292, WO97/04079, WO97/07202, WO00/34450, WO00/60063, WO01/92502, WO07/87508 and WO09/109500.
Preferred commercial lipase products include include LipolaseTM, LipexTM; LipolexTM and LipocleanTM (Novozymes A/S) , Lumafast (originally from Genencor) and Lipomax (originally from Gist-Brocades) .
Still other examples are lipases sometimes referred to as acyltransferases or perhydrolases, e.g. acyltransferases with homology to Candida antarctica lipase A (WO10/111143) , acyltransferase from Mycobacterium smegmatis (WO05/56782) , perhydrolases from the CE 7 family (WO09/67279) , and variants of the M. smegmatis perhydrolase in particular the S54V variant used in the commercial product Gentle Power Bleach from Huntsman Textile Effects Pte Ltd (WO10/100028) .
A peroxidase according to the invention is a peroxidase enzyme comprised by the enzyme classification EC 1.11.1.7, as set out by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (IUBMB) , or any fragment derived therefrom, exhibiting peroxidase activity.
Suitable peroxidases include those of plant, bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinopsis, e.g., from C. cinerea (EP 179, 486) , and variants thereof as those described in WO 93/24618, WO 95/10602, and WO 98/15257.
A peroxidase according to the invention also include a haloperoxidase enzyme, such as chloroperoxidase, bromoperoxidase and compounds exhibiting chloroperoxidase or bromoperoxidase activity. Haloperoxidases are classified according to their specificity for halide ions. Chloroperoxidases (E.C. 1.11.1.10) catalyze formation of hypochlorite from chloride ions.
In an embodiment, the haloperoxidase of the invention is a chloroperoxidase. Preferably, the haloperoxidase is a vanadium haloperoxidase, i.e., a vanadate-containing haloperoxidase. In a preferred method of the present invention the vanadate-containing haloperoxidase is combined with a source of chloride ion.
Haloperoxidases have been isolated from many different fungi, in particular from the fungus group dematiaceous hyphomycetes, such as Caldariomyces, e.g., C. fumago, Alternaria, Curvularia, e.g., C. verruculosa and C. inaequalis, Drechslera, Ulocladium and Botrytis.
Haloperoxidases have also been isolated from bacteria such as Pseudomonas, e.g., P. pyrrocinia and Streptomyces, e.g., S. aureofaciens.
In an preferred embodiment, the haloperoxidase is derivable from Curvularia sp., in particular Curvularia verruculosa or Curvularia inaequalis, such as C. inaequalis CBS 102.42 as described in WO 95/27046; or C. verruculosa CBS 147.63 or C. verruculosa CBS 444.70 as described in WO 97/04102; or from Drechslera hartlebii as described in WO 01/79459, Dendryphiella salina as described in WO 01/79458, Phaeotrichoconis crotalarie as described in WO 01/79461, or Geniculosporium sp. as described in WO 01/79460.
An oxidase according to the invention include, in particular, any laccase enzyme comprised by the enzyme classification EC 1.10.3.2, or any fragment derived therefrom exhibiting laccase activity, or a compound exhibiting a similar activity, such as a catechol oxidase (EC 1.10.3.1) , an o-aminophenol oxidase (EC 1.10.3.4) , or a bilirubin oxidase (EC 1.3.3.5) .
Preferred laccase enzymes are enzymes of microbial origin. The enzymes may be derived from plants, bacteria or fungi (including filamentous fungi and yeasts) .
Suitable examples from fungi include a laccase derivable from a strain of Aspergillus, Neurospora, e.g., N. crassa, Podospora, Botrytis, Collybia, Fomes, Lentinus, Pleurotus, Trametes, e.g., T. villosa and T. versicolor, Rhizoctonia, e.g., R. solani, Coprinopsis, e.g., C. cinerea, C. comatus, C. friesii, and C. plicatilis, Psathyrella, e.g., P. condelleana, Panaeolus, e.g., P. papilionaceus, Myceliophthora, e.g., M. thermophila, Schytalidium, e.g., S. thermophilum, Polyporus, e.g., P. pinsitus, Phlebia, e.g., P. radiata (WO 92/01046) , or Coriolus, e.g., C. hirsutus (JP 2238885) .
Suitable examples from bacteria include a laccase derivable from a strain of Bacillus.
A laccase derived from Coprinopsis or Myceliophthora is preferred; in particular a laccase derived from Coprinopsis cinerea, as disclosed in WO 97/08325; or from Myceliophthora thermophila, as disclosed in WO 95/33836.
Surfactants
The softener composition may comprise one or more surfactants, which may be cationic and/or non-ionic.
When included therein, the softener will usually comprise from about from about 1%to about 40%by weigh of a cationic surfactant, for example from about 0.5%to about 30%, in particular
from about 1%to about 20%, from about 3%to about 10%, such as from about 3%to about 5%, from about 8%to about 12%or from about 10%to about 12%. Non-limiting examples of cationic surfactants include bis (Acyloxyethyl) hydroxyethyl Methylammonium Methosulphate, Dipalmoylethyl hydroxyethylmonium methosulfate, dihydrogenated tallow hydroxyethylmonium methosulfate, distearoylethyl hydroxyethylmonium methosulfate, dioleoyl ethyl hydroxyethylmonium methosulfate alkyl quaternary ammonium compounds, alkoxylated quaternary ammonium (AQA) compounds, other ester quats, and combinations thereof. The cationic softeners bind by electrostatic attraction to the negatively charged groups on the surface of the textile and neutralize their charge and thereby impart lubricity.
When included therein, the softener composition will usually comprise from about 0.1%to about 10%by weight of a nonionic surfactant, for example from about 0.2%to about 5%, in particular from about 0.2%%to about 3%, such as from about 0.2%to about 0.5%, from about 0.5%to about 1%, or from about 1%to about 3%. Non-limiting examples of nonionic surfactants include polysorbates, polyethylene glycol ethers, polyoxyethylene alkyl ethers, alcohol ethoxylates (AE or AEO) , alcohol propoxylates, propoxylated fatty alcohols (PFA) , alkoxylated fatty acid alkyl esters, such as ethoxylated and/or propoxylated fatty acid alkyl esters, alkylphenol ethoxylates (APE) , nonylphenol ethoxylates (NPE) , alkylpolyglycosides (APG) , alkoxylated amines, fatty acid monoethanolamides (FAM) , fatty acid diethanolamides (FADA) , ethoxylated fatty acid monoethanolamides (EFAM) , propoxylated fatty acid monoethanolamides (PFAM) , polyhydroxyalkyl fatty acid amides, or N-acyl N-alkyl derivatives of glucosamine (glucamides, GA, or fatty acid glucamides, FAGA) , as well as products available under the trade names SPAN and TWEEN, and combinations thereof.
Builders and Co-Builders
The softener composition may also comprise about 0-10%by weight, such as about 0.1%to about 5%of a builder or co-builder, or a mixture thereof. In a softener, the level of builder is typically 0-1%, particularly 0-0.5%. The builder and/or co-builder may particularly be a chelating agent that forms water-soluble complexes with Ca and Mg. Any builder and/or co-builder known in the art for use in softener may be utilized. Non-limiting examples of builders include zeolites, diphosphates (pyrophosphates) , triphosphates such as sodium triphosphate (STP or STPP) , carbonates such as sodium carbonate, soluble silicates such as sodium metasilicate, layered silicates (e.g., SKS-6 from Hoechst) , ethanolamines such as 2-aminoethan-1-ol (MEA) , diethanolamine (DEA, also known as 2, 2’-iminodiethan-1-ol) , triethanolamine (TEA, also known as 2, 2’, 2”-nitrilotriethan-1-ol) , and (carboxymethyl) inulin (CMI) , and combinations thereof.
The softener composition may also comprise 0-5%by weight, such as about 0%to about 2%, of a detergent co-builder. The softener composition may include a co-builder alone, or in combination with a builder, for example a zeolite builder. Non-limiting examples of co-builders include
homopolymers of polyacrylates or copolymers thereof, such as poly (acrylic acid) (PAA) or copoly (acrylic acid/maleic acid) (PAA/PMA) . Further non-limiting examples include citrate, chelators such as aminocarboxylates, aminopolycarboxylates and phosphonates, and alkyl-or alkenylsuccinic acid. Additional specific examples include 2, 2’, 2”-nitrilotriacetic acid (NTA) , ethylenediaminetetraacetic acid (EDTA) , diethylenetriaminepentaacetic acid (DTPA) , iminodisuccinic acid (IDS) , ethylenediamine-N, N’-disuccinic acid (EDDS) , methylglycinediacetic acid (MGDA) , glutamic acid-N, N-diacetic acid (GLDA) , 1-hydroxyethane-1, 1-diphosphonic acid (HEDP) , ethylenediaminetetra (methylenephosphonic acid) (EDTMPA) , diethylenetriaminepentakis (methylenephosphonic acid) (DTMPA or DTPMPA) , N- (2-hydroxyethyl) iminodiacetic acid (EDG) , aspartic acid-N-monoacetic acid (ASMA) , aspartic acid-N, N-diacetic acid (ASDA) , aspartic acid-N-monopropionic acid (ASMP) , iminodisuccinic acid (IDA) , N- (2-sulfomethyl) -aspartic acid (SMAS) , N- (2-sulfoethyl) -aspartic acid (SEAS) , N- (2-sulfomethyl) -glutamic acid (SMGL) , N- (2-sulfoethyl) -glutamic acid (SEGL) , N-methyliminodiacetic acid (MIDA) , α-alanine-N, N-diacetic acid (α-ALDA) , serine-N, N-diacetic acid (SEDA) , isoserine-N, N-diacetic acid (ISDA) , phenylalanine-N, N-diacetic acid (PHDA) , anthranilic acid-N, N-diacetic acid (ANDA) , sulfanilic acid-N, N-diacetic acid (SLDA) , taurine-N, N-diacetic acid (TUDA) and sulfomethyl-N, N-diacetic acid (SMDA) , N- (2-hydroxyethyl) ethylenediamine-N, N’, N”-triacetic acid (HEDTA) , diethanolglycine (DEG) , diethylenetriamine penta (methylenephosphonic acid) (DTPMP) , aminotris (methylenephosphonic acid) (ATMP) , and combinations and salts thereof. Further exemplary builders and/or co-builders are described in, e.g., WO 09/102854.
Polymers
The softener composition may comprise 0-10%by weight, such as 0.5-5%, 2-5%, 0.5-2%or 0.2-1%of a polymer. Any polymer known in the art for use in softeners may be utilized. The polymer may function as a co-builder as mentioned above, or may provide anti redeposition, fiber protection, preventing color loss and greying, soil release, dye transfer inhibition, anti-foaming properties, perfume encapsulation and lubricity. Some polymers may have more than one of the above-mentioned properties and/or more than one of the below-mentioned motifs. Exemplary polymers include polyquaterniums, melamine polymers, siloxanes, silicones, carboxymethyl) cellulose (CMC) , poly (vinyl alcohol) (PVA) , poly (vinylpyrrolidone) (PVP) , poly (ethyleneglycol) or poly (ethylene oxide) (PEG) , ethoxylated poly (ethyleneimine) , carboxymethyl inulin (CMI) , and polycarboxylates such as PAA, PAA/PMA, poly-aspartic acid, and lauryl methacrylate/acrylic acid copolymers , hydrophobically modified CMC (HM-CMC) , copolymers of terephthalic acid and oligomeric glycols, copolymers of poly (ethylene terephthalate) and poly (oxyethene terephthalate) (PET-POET) , PVP, poly (vinylimidazole) (PVI) , poly (vinylpyridine-N-oxide) (PVPO or PVPNO) and polyvinylpyrrolidone-vinylimidazole (PVPVI) . Further exemplary polymers include sulfonated polycarboxylates, polyethylene oxide and polypropylene oxide (PEO-
PPO) and diquaternium ethoxy sulfate. Other exemplary polymers are disclosed in, e.g., WO 2006/130575. Salts of the above-mentioned polymers are also contemplated.
Perfume
The softener compositions may comprise one or more perfumes in a free form or encapsulated. Any fragrance, perfume or perfume oil known in the art for use in softeners may be utilized. Suitable perfume ingredients may include butylphenyl methylpropional, geraniol, benzyl salicylate, hexyl cinnamal, amyl cinnamal, limonene, benzisothiazolinone, alpha isomethyl ionone, linalool.
Adjunct materials
Any other softener components known in the art for use in softener compositions may also be utilized. Other optional softener components include solvents (including isopropyl alcohol, propylene glycol, alkane/cycloalkane) , anti-shrink agents, anti-soil redeposition agents, anti-wrinkling agents, bactericides, preservatives (including benzisothiazolinone, methylisothiazolinone and/or lactic acid) , binders, dyes, enzyme stabilizers (including boric acid, borates, CMC, and/or polyols such as propylene glycol) , emulsion stabilizers, antifoam agents (including dimethicone) , skin conditioning agents (including caprylic/capric glycerides, ethylhexyl stearate, or cocos oil , either alone or in combination. Any adjunct materials known in the art for use in softeners may be utilized. The choice of such ingredients is well within the skill of the artisan.
The invention is further outlined in the following embodiments consecutively numbered starting with embodiment 1 (E1) :
E1. Use of an enzyme having cellulase activity in a softener composition for improving breathability and/or stain resistance of a textile.
E2. The use according to embodiment 1, wherein said enzyme is a family GH45 cellulase.
E3. The use according to any one of the preceding embodiments, wherein said enzyme is a cellulase having at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%or 100%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
E4. The use according to any one of the preceding embodiments, wherein said softener composition comprises a cationic surfactant, such as esterquats.
E5. The use according to any one of the preceding embodiments, wherein said softener composition has a pH of at least 2.0, such as at least 2.4, such as at least 3.0.
E6. The use according to any one of the preceding embodiments, wherein said textile has been pre-washed in a laundering process.
E7. The use according to any one of preceding embodiments, wherein said textile is cotton, polyester or a mixture thereof, such as a mixture of at least 20%polyester and at least 40%cotton.
E8. The use according to any one of preceding embodiments, wherein said enzyme is added in a concentration of at least 0.01 wt%, such as at least 0.03%, 0.05%, 0.08%, 0.2%, 0.5 wt%or at least 1 wt%of said softener composition.
E9. A softener composition for improving breathability and/or stain resistance of a textile, wherein said softener composition comprises a family GH45 cellulase, preferably a cellulase having at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%or 100%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
E10. A method for improving breathability and/or stain resistance of a textile comprising contacting said textile with an enzyme having cellulase activity and a softener composition during a rinse cycle such as a laundry rinse cycle.
E11. The method according to embodiment 10, wherein said enzyme is a family GH45 cellulase.
E12. The method according to any one of embodiments 10-11, wherein said enzyme is a cellulase having at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%or 100%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
E13. The method according to any one of embodiments 10-12, wherein said softener composition comprises a cationic surfactant, such as esterquats.
E14. The method according to any one of embodiments 10-13, wherein said softener composition has a pH of at least 2.0, such as at least 2.4, such as at least 3.0.
E15. The method according to any one of embodiments 10-16, wherein said textile has been pre-washed in a laundering process.
E16. The method according to any one of embodiments 10-14, wherein said textile is cotton, polyester, or a mixture thereof, such as a mixture of at least 20%polyester and at least 40%cotton.
E17. The method according to any one of embodiments 10-15, wherein said enzyme is added in a concentration of 0.01 wt%, such as at least 0.5 wt%or at least 1 wt%of said softener composition.
E18. The use or the method according to any one of the proceeding embodiments, wherein the stain includes cosmetic stains, such as lipsticks, liquid foundations, skincare products.
The present invention is further described by the following examples that should not be construed as limiting the scope of the invention.
EXAMPLES
Example 1 –Breathability evaluation
Procedure for preparing the textiles
Enzymes used:
Cellulase A (SEQ ID NO: 4) , available from Novozymes A/S, Bagsvaerd, Denmark.
Cellulase B (SEQ ID NO: 6) , available from Novozymes A/S, Bagsvaerd, Denmark.
Detergent and softener used:
Detergent: Model N detergent, dosage: 2g/L Ingredients: 5.3%LAS, 10.7%AEOS, 1%soap, 5.3 %non-ionic surfactants, 2%sodium citrate, 0.4%TEA, 0.73%NaOH, 0.02%CaCl2 add water to 100 % (all percentages are w/w) .
Softener: Green softener, dosage: 65g/wash.
Textiles used: CN-11 cotton textile (bleached woven cotton, purchased from CFT company) , cut into 25cm x 25cm.
Washing Machine used: Panasonic XQB75-H7231.
Washing conditions: Wash temperature: 25℃, short program (49mins) , Water hardness: 14dH, Water level (in wash) : 33L water (main wash) , Ballast (cotton: polyester =65: 35 based on weight percentage) : Total of 2.5 kg.
Washing procedure: 4 pieces of CN-11 textile (25cm x 25cm) were washed for 10 consecutive cycles which were performed in the defined washing conditions with drying at room temperature (~25℃) for overnight, in between every two of the wash cycles and after the last wash. Softener and cellulase were added in the last rinse step. Breathability as well as the stain resistance of the washed textiles was evaluated according to the procedures described below.
Procedure for evaluating the breathability of the textiles:
As illustrated in Figure 1, breathability of the washed textiles was evaluated according to steps below.
1. Cut the washed fabrics into a size of 12 cm ×12 cm.
2. Fill the Humidifier (TAAN) with tap water.
3. Cover the outlet of the humidifier with one piece of washed fabric (d=12 cm ×12 cm) .
4. Then connect a plastic tube (length=30cm) with a similar diameter (d=7cm) to that of the outlet to allow a tight connection between the plastic tube and the outlet, so that there is no leak of the vapor from the connection part. The setup ready for test is schematically shown in Figure 1.
5. Turn on the humidifier and start time counting at the same time by using a timer. When the vapor starts to come out of the top end of the plastic tube, stop the time counting. The time for the vapor generated by the humidifier passing through the textile and then all the way through plastic tube was recorded. The test was repeated for 3 times. And the averaged time of the vapor passing through the textile and the 30cm long plastic tube (d = 7cm) was calculated and listed in below table 1. Less time indicates better breathability of the textile.
Table 1: Results showing the improvement of breathability when using a cellulase in a softener
It can be seen from table 1 that, in the absence of celluase enzyme, the breathability of the textile decreased significantly after washed by softener (condition 2 vs condition 1) . And the breathability of the textile washed with celluase was improved (condition 3 or 4 vs condition 2) , indicating adding cellulase to softener can at least partly compensate the breathability loss.
Example 2 –Stain resistance evaluation
Example 2a: cosmetic stain resistance test
To evaluate the resistance of the washed textile towards everyday stains, two types of cosmetic stains, i.e., lipstick and liquid foundation were selected for the stain resistance test.
Cellulase used: SEQ ID NO: 4, dosed at 0.35 wt%based on softener, or 89ppm in wash liquor.
Polymer used: A commercial biopolymer (referred to as “Polymer A” in the present example) was included in the present invention to compare with cellulase enzyme. Polymer A is claimed to have similar benefits as a cellulase and can protect garments and fabrics from damage, color loss and greying in both concentrated and diluted softener product. This polymer was dosed at 0.35 wt%.
Textiles were washed and dried in the same way as that in Example 1 and were then evaluated for stain resistance according to steps below by referring to Figure 2.
1. As shown in Figure 2, two spots of lipstick stain (d=2cm) and two spots of liquid foundation stain (d=2cm) were pre-spotted evenly onto the inner surface of the lid of a petri-dish plate. The lipstick was purchased from Innisfree Company, and liquid foundation were purchased from Maybelline Company.
2. Cover the pre-spotted stains gently with washed textile CN-42 (Cotton interlock double jersey, purchased from CFT company) .
3. Load a weight (1.35kg) onto the textile and allow the weight to press the textile for 1min.
4. Then remove the weight and take out the textile to visually check the area and the intensity of stain attached to the textile. The stained textile was also photographed as shown in Figure 3.
In Figure 3, Condition A refers to the textile washed (i.e., rinsed) with softener only (no celluase or polymer added) . Condition B refers to the textile washed with softener and 0.35 wt%celluase (SEQ ID NO: 4) . Condition C refers to the textile washed with softener and 0.35 wt%Polymer A. It can be seen that, the textiles washed with cellulase was less soiled by both types of cosmetics (lipstick and liquid foundation) , compared to those washed with softener only or washed with Polymer A. The results indicated that the stain resistance of the textile washed with celluase was improved.
Example 2b: Lipstick stain resistance test by mimicking real life scenario
The stain resistance was further evaluated by mimicking a real-life scenario how a lipstick stain contaminates a textile. The dosage of cellulases used in Example 2b was as below:
Cellulase A: SEQ ID NO: 4, 0.4 wt%based on softener dosed (102 ppm in wash liquor) .
Cellulase B: SEQ ID NO: 6, 0.2 wt%based on softener dosed (86 ppm in wash liquor) .
Textiles were washed and dried in the same way as that in Example 1. For mimicking a real life scenario where a lipstick stain contaminates a textile, a female volunteer was asked to put one piece of washed textile onto her lips applied with lipstick with the left hand and keep the textile on her lips for 5 seconds with no additional pressure. Then the textile was removed and subjected to visual check regarding the area and the intensity of the stain (lip mark) left on the textile. The stained textile was also photographed as shown in Figure 4.
In Figure 4, Condition D refers to the textile washed (i.e., rinsed) with softener only (no celluase added) . Condition E refers to the textile washed with softener and 0.4 wt%celluase A (SEQ ID NO: 4) . Condition F refers to the textile washed with softener and 0.2 wt%celluase B (SEQ ID NO: 6) . Figure 4 confirmed that textiles washed with cellulase possess an improved stain resistance compared to those washed without cellulase. As a result, by washing textiles e.g. clothes with cellulase-containing softener can prevent or reduce the contaminations by everyday stains during using e.g. wearing and thus improves the durability of textiles.
Claims (15)
- Use of an enzyme having cellulase activity in a softener composition for improving breathability of a textile.
- Use of an enzyme having cellulase activity in a softener composition for improving stain resistance of a textile.
- The use according to claim 2, wherein said enzyme is a family GH45 cellulase.
- The use according to any one of the preceding claims, wherein said enzyme is a cellulase having at least 60%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- The use according to any one of the preceding claims, wherein said softener composition comprises a cationic surfactant, such as esterquats.
- The use according to any one of the preceding claims, wherein said softener has a pH of at least 2.0, such as at least 2.4, such as at least 3.0.
- The use according to any one of the preceding claims, wherein said textile has been pre-washed in a laundering process.
- The use according to any one of preceding claims, wherein said textile is cotton, polyester or a mixture thereof, such as a mixture of at least 20%polyester and at least 30%cotton.
- The use according to any one of preceding claims, wherein said enzyme is added in a concentration of at least 0.01 wt%, such as at least 0.5 wt%or at least 1 wt%of said softener composition.
- A softener composition for improving breathability and/or stain resistance of a textile, wherein said softener composition comprises a family GH45 cellulase, preferably a cellulase having at least 60%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- A method for improving breathability of a textile comprising contacting said textile with an enzyme and a softener composition during a rinse cycle such as a laundry rinse cycle.
- A method for improving stain resistance of a textile comprising contacting said textile with an enzyme and a softener composition during a rinse cycle such as a laundry rinse cycle.
- The method according to claim 11 or 12, wherein said enzyme is a family GH45 cellulase.
- The method according to any one of claims 11-13, wherein said enzyme is a cellulase having at least 60%sequence identity to SEQ ID NO: 1, 2, 3, 4, 5 or 6.
- The method according to any one of claims 11-14, wherein said softener comprises a cationic surfactant, such as esterquats.
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US6294366B1 (en) * | 1997-09-19 | 2001-09-25 | Clariant Finance (Bvi) Limited | Compositions and methods for treating cellulose containing fabrics using truncated cellulase enzyme compositions |
JP2002265998A (en) * | 2001-03-15 | 2002-09-18 | Kao Corp | Detergent composition |
CN103668974A (en) * | 2012-09-21 | 2014-03-26 | 青岛道合生物科技有限公司 | Antibacterial baby diapers |
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