Freshening composition containing bacterial spores
A fabric freshening composition with Bacillus spores and cyclodextrin addresses the need for long-lasting malodor removal by using cyclodextrin as a nutrient for bacterial spores, ensuring sustained freshness on fabrics.
Patent Information
- Application Number
- JP2024502511
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-07-19
- Filing Date
- 2022-06-01
- Publication Date
- 2025-09-17
- Estimated Expiration
- 2042-06-01
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Figure 0007741291000001 
Figure 0007741291000002 
Figure 0007741291000003
Abstract
Description
[Technical Field]
[0001] The present invention relates to a fabric freshening composition comprising bacterial spores and cyclodextrin. The present invention also relates to an article of manufacture comprising the composition of the present invention and a spray device, and a method of freshening fabrics using the composition of the present invention. [Background technology]
[0002] Products for freshening fabrics or reducing / eliminating malodors from fabrics are currently available. These products typically contain freshening compositions that include perfume raw materials (PRMs), solvents, surfactants, and high concentrations of water. Having a wide variety of scent options in freshening products allows consumers to find one that suits their taste. Many of the existing freshening products provide instant freshness but do not provide long-lasting freshness. Summary of the Invention [Problem to be solved by the invention]
[0003] There is a need for freshening compositions that provide long-lasting malodor removal and / or malodor prevention. [Means for solving the problem]
[0004] According to a first aspect of the present invention there is provided a fabric freshening composition comprising: a) about 1 × 10 of the composition 2 ~Approx. 1×10 9 CFU / g, preferably about 1 x 10 3 ~Approx. 1×10 7 CFU / g of the composition, preferably about 1 x 10 4 ~Approx. 1×10 7 Bacterial spores, preferably Bacillus spores, at CFU / g; b) Cyclodextrin A fabric freshening composition is provided, comprising:
[0005] The composition is preferably an aqueous liquid composition, preferably comprising a surfactant and a solvent, and preferably a malodour counteractant and / or a curable polymer and / or an anti-wrinkle agent.
[0006] According to a second aspect of the present invention there is provided a fabric freshening product comprising a freshening composition and a spray device.
[0007] According to a third aspect of the present invention, there is provided a method of achieving sustained malodour control and prevention on fabrics using the products of the present invention.
[0008] The elements of the composition of the invention described in relation to the first aspect of the invention apply mutatis mutandis to the second aspect of the invention. DETAILED DESCRIPTION OF THE INVENTION
[0009] The composition of the present invention comprises bacterial spores and cyclodextrin. The composition of the present invention preferably comprises a perfume. The perfume comprises a perfume raw material (PRM). PRMs are typically formulated with water to create sprayable fabric freshening compositions. However, due to the hydrophobic nature of PRMs, solvents and / or surfactants are used to solubilize and emulsify the PRM in compositions with high water content. Solvents suitable for solubilizing PRMs typically include alcohols, polyols, and mixtures thereof. Preferably, the bacterial spores are in particulate form. Preferably, the composition comprises a polysaccharide system that facilitates suspension of the bacterial spores.
[0010] The present invention is based on the surprising discovery that cyclodextrins serve as a source of nutrients for bacterial spores.
[0011] The term "freshening composition" as used herein refers to a composition for providing freshness to fabrics.
[0012] The term "perfume raw material" as used herein refers to perfume materials ("PRMs" or singular "PRM").
[0013] The term "ClogP" as used herein refers to the calculated logP value ("ClogP") of a PRM. The octanol / water partition coefficient of a PRM is the ratio between its equilibrium concentrations in octanol and water. The partition coefficient of a PRM used in a freshening composition can be more conveniently expressed as LogP, a base 10 logarithm. ClogP is determined by a model that calculates the octanol-water partition coefficient (logP or logKow) for common organic molecules directly based on molecular structure. LogP is a measure of the distribution of a solute between two immiscible liquid phases, octanol and water, and is commonly used as a relative measure of the hydrophobicity of the solute. One way to calculate the LogP of a PRM is using the ACD / Labs LogP software module from Advanced Chemistry Development, Inc. Details on calculating logP can be found on the ACD / Labs website (https: / / www.acdlabs.com / products / percepta / predictors / logp / ). The LogP values of PRMs calculated using the ACD / Labs LogP software module and the LogP values of PRMs are used to select PRMs useful in the present invention, as described in the Examples below. However, it will be understood that another suitable method for measuring LogP is to use the "ClogP" program from BioByteCorp (e.g., ClogP Version 4.0 and Manual 1999). CLOG P USER GUIDE, Version 4.0, BioByteCorp (1999) (http: / / www.bio-byte.com / bb / prod / clogp40.html). A further suitable method for measuring LogP is to use the CLOGP program from Daylight Chemical Information Systems, Inc. (Alison Viejo, CA). CLOGP Reference manual, Daylight Version 4.9, Release Date 02 / 1 / 2008.
[0014] The term "sulfur-containing pro-perfume" as used herein refers to a type of pro-perfume compound that contains sulfur. The term "pro-perfume" as used herein refers to a compound obtained by the reaction of a PRM with other chemicals, which has a covalent bond between one or more PRMs and these chemicals. The PRM is converted into a new material called a pro-perfume compound, which can then release the original PRM (i.e., the original PRM) when exposed to a trigger such as water, light, or atmospheric oxygen. Suitable pro-perfume compounds and methods for making them can be found in U.S. Patent Nos. 7,018,978, 6,861,402, 6,544,945, 6,093,691, 6,165,953, and 6,096,918.
[0015] All percentages, parts, and ratios are based on the total weight of the compositions of the present invention unless otherwise specified. When referring to listed ingredients, all such weights are based on the active level and, therefore, do not include solvents or by-products that may be included in commercially available materials unless otherwise specified. The term "weight percent" may also be expressed herein as "wt %." As used herein, all molecular weights are weight average molecular weights expressed in grams / mole unless otherwise specified.
[0016] Freshening Composition The freshening composition according to the present invention comprises bacterial spores, cyclodextrin, and preferably a fragrance. The composition is preferably an aqueous liquid composition comprising at least 90% by weight of the composition, preferably at least 95% by weight, more preferably at least 98% but less than 99.5% by weight of water. Having a high concentration of water allows the freshening composition to be sprayable while minimizing any visible residue and / or staining on fabric articles. The composition may be a Newtonian fluid having a viscosity of 1 cps to 500 cps, more preferably 1 cps to 300 cps, more preferably 1 cps to 200 cps, even more preferably 1 cps to 100 cps, most preferably 1 cps to 50 cps, and especially 1 cps to 20 cps, measured at a shear rate of 10 s at 20°C using an Atlas® AD1000 Advanced rheometer with a 40 mm cone spindle having a cone angle of 2° and a truncation of ±60 μm. The freshening composition is sprayable and the fragrance remains solubilized to provide a phase stable freshening composition that consistently delivers scent freshness with each spray.
[0017] In a preferred embodiment, the bacterial spores are in particulate form and the freshening composition comprises a structuring agent system, preferably a polysaccharide system, to suspend the particles.
[0018] The ingredients of the freshening composition of the present invention are described in the following paragraphs.
[0019] Bacterial spores The spores are fabric-persistent and provide malodor control during and after fabric treatment. The spores germinate when the right humidity and temperature conditions are found, and the cyclodextrin appears to act as a nutrient once the bacteria begin to germinate.
[0020] The spores have the ability to germinate and form cells during processing and continue to germinate and form cells on the fabric using cyclodextrin as a nutrient. The spores can be provided in liquid or solid form. Preferably, the spores are in solid form.
[0021] Some Gram-positive bacteria have a two-stage life cycle. During this life cycle, bacteria growing under certain conditions, such as in response to nutrient deficiency, can execute an elaborate developmental program leading to spore or endospore formation. Bacterial spores are protected by a coat composed of approximately 60 different proteins assembled into a biochemically complex structure with intriguing morphological and mechanical properties. The protein coat is considered a static structure that provides rigidity and primarily acts as a sieve to filter out large, exogenous, toxic molecules, such as lytic enzymes. Spores are highly resistant to extreme environmental conditions and therefore play an important role in the long-term survival of a species. Spores can also remain metabolically dormant for many years. Methods for obtaining bacterial spores from vegetative cells are well known in the art. In some instances, vegetative bacterial cells are grown in liquid culture. From late logarithmic or early stationary phase, bacteria can initiate spore formation. Once the bacteria have completed sporulation, the spores can be harvested from the culture medium, for example, by centrifugation. Various methods can be used to kill or remove any remaining vegetative cells. Various methods can be used to purify spores from cellular debris and / or other materials or substances. Bacterial spores can be differentiated from vegetative cells using various techniques, such as phase contrast microscopy, automated scanning microscopy, high-resolution atomic force microscopy, or thermotolerance methods. Bacterial spores are generally metabolically inactive or dormant, environmentally resistant structures, making them easily selected for use in commercial microbial products. Despite their hardiness and extremely long lifespan, spores can rapidly respond to the presence of specific small molecules known as germination, which signals favorable conditions for interrupting dormancy by germination, the initial step in the process of completing their life cycle by reverting to vegetative bacteria. For example, commercial microbial products can be designed so that spores are dispersed into an environment where they encounter germs present in the environment, germinate within vegetative cells, and perform their intended function. A variety of different bacteria can form spores. Bacteria from any of these groups can be used in the compositions, methods, and kits disclosed herein. For example, the following genera: Acetonema, Alkalibacillus,Ammoniphilus, Amphibacillus, Anaerobacter, Anaerospora, Aneurinibacillus, Anoxybacillus, Bacillus, Brevibacillus, Caldanaerobacter, Caloramator, Caminicella a), Cerasibacillus, Clostridium, Clostridiisalibacter, Cohnella, Dendrosporobacter, Desulfotomaculum, Desulfosporomusa, Desulfosporosinus, Desulfovirgula, Desul Desulfunispora, Desulfurispora, Filifactor, Filobacillus, Gelria, Geobacillus, Geosporobacter, Gracilibacillus, Halonatronum, Heliobacterium, Heliophilum, Laceyella, Lentibacillus, Lysinibacillus, Mahella, Metabacterium, Moorella, Natroniella, Oceanobacillus, Orenia, Ornithinibacillus, Oxalophagus, Oxobacter,Paenibacillus, Paraliobacillus, Pelospora, Pelotomaculum, Piscibacillus, Planifilum, Pontibacillus, Propionispora, Salinibacillus, Salsuginibacillus, Seinonella , Shimazuella, Sporacetigenium, Sporoanaerobacter, Sporobacter, Sporobacterium, Sporohalobacter, Sporolactobacillus, Sporomusa, Sporosarcina, Sporotalea, Sporotomacula Sporomaculum, Syntrophomonas, Syntrophospora, Tenuibacillus, Tepidibacter, Terribacillus, Thalassobacillus, Thermoacetogenium, Thermoactinomyces, Thermoalkal Some bacteria from the following families are also known: Thermobacillus, Thermoanaerobacter, Thermoanaeromonas, Thermobacillus, Thermoflavimicrobium, Thermovenablum, Tuberibacillus, Virgibacillus, and / or VulcanobacillusIt can form spores.
[0022] Preferably, the bacterium capable of forming spores is a bacterium from the family Bacillaceae, such as Aeribacillus, Aliibacillus, Alkalibacillus, Alkalicoccus, Alkalihalobacillus, Alkalilactibacillus, Allobacillus, Terribacillus, Alteribacter ), Ampibacillus, Anaerobacillus, Anoxybacillus, Aquibacillus, Aquisalibacillus, Aureibacillus, Bacillus, Caldalkalibacillus, Caldibacillus, Calditerricola, Calidifontibacillus, Camellibacillus elliibacillus, Serracibacillus, Compostibacillus, Cytobacillus, Desertibacillus, Domibacillus, Ectobacillus, Evansella, Falsibacillus, Ferdinandcohnia, Fermentibacillus, Fictibacillus Factibacillus, Filbacillus, Geobacillus, Geomicrobium, Gottfriedia, Gracilibacillus, Halalkalibacillus, Halobacillus, Halolactibacillus, Heyndrickxia, Hydrogenibacillus, Lederbergia, Lentibacillus,Litchfieldia, Lottiidibacillus, Margalitia, Marinococcus, Melghiribacillus, Mesobacillus, Metabacillus, Microaerobacter, Natribacillus, Natronobacillus, Neobacillus Neobacillus, Niallia, Oceanobacillus, Ornithinibacillus, Geobacillus, Parageobacillus, Paraliobacillus, Paralkalibacillus, Paucisalibacillus, Pelagirhabdus, Peribacillus, Piscibacillus, Polygonibacillus, Pontibacillus, Pradosia adoshia, Priestia, Pseudogracilibacillus, Pueribacillus, Radiobacillus, Robertmurraya, Rossellomorea, Saccharococcus, Salibacterium, Salimicrobium, Salinibacillus, Salipaldibacillus Salipaludibacillus, Salirhabdus, Salisediminibacterium, Saliterribacillus, Sarsuginibacillus, Sediminibacillus, Siminovitchia, Sinibacillus, Sinobaca, Streptohalobacillus,The bacteria are derived from the species Sutcliffiella, Swionibacillus, Tenuibacillus, Tepidibacillus, Terribacillus, Terriactibacillus, Texcoconibacillus, Thalassobacillus, Thalassorhabdus, Thermolongibacillus, Viridibacillus, Vulcanibacillus, and Weizmannia. In various examples, the bacterium may be Bacillus acidicola, Bacillus aeolius, Bacillus aerius, Bacillus aerophilus, Bacillus albus, Bacillus altitudinis, Bacillus alveayuensis, Bacillus amyloliquefaciensex, Bacillus anthracis, Bacillus aquiflavi, Bacillus atrophaeus, Bacillus australimalis, Bacillus australimaris, Bacillus badius, Bacillus benzoevorans, Bacillus cabrialesii, Bacillus canaveralius, Bacillus capparidis, Bacillus carboniphilus, Bacillus cereus,Bacillus chungangensis, Bacillus coahuilensis, Bacillus cytotoxicus, Bacillus decisifrondis, Bacillus ectoiniformans, Bacillus enclensis, Bacillus fengqiuensis, Bacillus fungorum, Bacillus glycinifermentans, Bacillus gobiensis, Bacillus halotolerans, Bacillus heineshii haynesii, Bacillus horti, Bacillus inaquosorum, Bacillus infantis, Bacillus infernus, Bacillus isabeliae, Bacillus kexueae, Bacillus licheniformis, Bacillus luti, Bacillus manusensis, Bacillus marinisedimentorum, Bacillus mesophilus, Bacillus methanolicus methanolicus), Bacillus mobilis, Bacillus mojavensis, Bacillus mycoides, Bacillus nakamurai, Bacillus ndiopicus,Bacillus nitratireducens, Bacillus oleivorans, Bacillus pacificus, Bacillus pakistanensis, Bacillus paralicheniformis, Bacillus paramycoides, Bacillus paranthracis, Bacillus pervagus, Bacillus piscicola, Bacillus proteolyticus, Bacillus pseudomycoides, Bacillus pumilus pumilus, Bacillus safensis, Bacillus salacetis, Bacillus salinus, Bacillus salitolerans, Bacillus seohaeanensis, Bacillus shivajii, Bacillus siamensis, Bacillus smithii, Bacillus solimangrovi, Bacillus songklensis, Bacillus sonorensis, Bacillus spizizenii spizizenii, Bacillus spongiae, Bacillus stercoris, Bacillus stratosphericus, Bacillus subtilis, Bacillus swezeyi,Bacillus taeanensis, Bacillus tamaricis, Bacillus tequilensis, Bacillus thermocloacae, Bacillus thermotolerans, Bacillus thuringiensis, Bacillus tianshenii, Bacillus toyonensis, Bacillus tropicus, Bacillus vallismortis, Bacillus velezensis, Bacillus viedmannii The strain may be a strain of Bacillus wiedmannii, Bacillus wudalianchiensis, Bacillus xiamenensis, Bacillus xiapuensis, Bacillus zhangzhouensis, or a combination thereof.
[0023] In some examples, the spore-forming bacterial strain may be a Bacillus strain, such as Bacillus sp. strain SD-6991, Bacillus sp. strain SD-6992, Bacillus sp. strain NRRL B-50606, Bacillus sp. strain NRRL B-50887, Bacillus pumilus strain NRRL B-50016, Bacillus amyloliquefaciens strain NRRL B-50017, Bacillus amyloliquefaciens strain PTA-7792 (formerly classified as Bacillus atrophaeus), Bacillus amyloliquefaciens strain PTA-7543 ... atrophaeus), Bacillus amyloliquefaciens strain NRRL B-50018, Bacillus amyloliquefaciens strain PTA-7541, Bacillus amyloliquefaciens strain PTA-7544, Bacillus amyloliquefaciens strain PTA-7545, Bacillus amyloliquefaciens strain PTA-7546, Bacillus subtilis strain PTA-7547, Bacillus amyloliquefaciens strain PTA-7549, Bacillus amyloliquefaciens strain PTA-7793, Bacillus amyloliquefaciens strain PTA-7790, Bacillus amyloliquefaciens strain PTA-7791, Bacillus subtilis strain NRRL B-50136 (also known as DA-33R, ATCC accession number 55406), Bacillus amyloliquefaciens strain NRRL B-50141, Bacillus amyloliquefaciens strain NRRL B-50399, Bacillus licheniformis strain NRRL B-50014, Bacillus licheniformis strain NRRL B-50015, Bacillus amyloliquefaciens strain NRRL B-50607, Bacillus subtilis strain NRRL B-50147 (also known as 300R), Bacillus amyloliquefaciens strain NRRL B-50150, Bacillus amyloliquefaciens strain NRRL B-50154, Bacillus megateriumBacillus megaterium PTA-3142, Bacillus amyloliquefaciens strain ATCC accession number 55405 (also known as 300), Bacillus amyloliquefaciens strain ATCC accession number 55407 (also known as PMX), Bacillus pumilus NRRL B-50398 (also known as ATCC 700385, PMX-1, and NRRL B-50255), Bacillus cereus ATCC accession number 700386, Bacillus thuringiensis ATCC accession number 700387 (all of the above strains are available from Novozymes, Inc., USA), Bacillus amyloliquefaciens FZB24 (an isolate available, for example, from Novozymes, NRRL B-5025 ... B-50304 and NRRL B-50349 TAEGRO®), Bacillus subtilis (e.g., isolate NRRL B-21661 available from Bayer CropScience in RHAPSODY®, SERENADE® MAX, and SERENADE® ASO), Bacillus pumilus (e.g., isolate NRRL B-50349 available from Bayer CropScience), Bacillus amyloliquefaciens TrigoCor (also known as "TrigoCor 1448," e.g., isolate Embrapa Trigo accession number 144 / 88.4Lev, Cornell accession number Pma007BR-97, and ATCC accession number 202152 available from Cornell University, USA), and combinations thereof.
[0024] In some examples, the spore-forming bacterial strain can be a Bacillus amyloliquefaciens strain. For example, the strain can be Bacillus amyloliquefaciens strain PTA-7543 (formerly classified as Bacillus atrophaeus) and / or Bacillus amyloliquefaciens strain NRRL B-50154, Bacillus amyloliquefaciens strain PTA-7543 (formerly classified as Bacillus atrophaeus), Bacillus amyloliquefaciens strain NRRL B-50154, or from other Bacillus amyloliquefaciens microorganisms.
[0025] In some examples, the spore-forming bacterial strain may be a Brevibacillus species, such as Brevibacillus brevis, Brevibacillus formosus, Brevibacillus laterosporus, or Brevibacillus parabrevis, or a combination thereof.
[0026] In some examples, the spore-forming bacterial strain may be a Paenibacillus species, such as Paenibacillus alvei, Paenibacillus amylolyticus, Paenibacillus azotofixans, Paenibacillus cookii, Paenibacillus macerans, Paenibacillus polymyxa, or Paenibacillus validus, or a combination thereof. The bacterial spores may have an average particle size of about 2 to 50 microns, preferably about 10 to 45 microns. Bacillus spores are commercially available in blends in aqueous carriers in which they are insoluble. Other commercially available Bacillus spore blends include, but are not limited to, Fenshen Free™ CAN (10X), available from Novozymes Biologicals, Inc., Evogen® Renew Plus (10X), available from Genesis Biosciences, Inc., and Evogen® GT (10X, 20X, and 110X), all available from Genesis Biosciences, Inc. In the foregoing list, the designations in parentheses (10X, 20X, and 110X) indicate the relative concentrations of Bacillus spores.
[0027] The bacterial spores used in the compositions, methods, and products disclosed herein may or may not be heat activated. In some instances, the bacterial spores are heat activated. In some instances, the bacterial spores are not heat inactivated. Preferably, the spores used herein are heat activated. Heat activation may involve heating the bacterial spores from room temperature (15-25°C) to an optimum temperature of 25-120°C, preferably 40-100°C, and holding the optimum temperature for up to 2 hours, preferably 70-80°C for 30 minutes.
[0028] In the context of the compositions disclosed herein, a bacterial spore population is generally used. In some instances, a bacterial spore population may contain bacterial spores from a single strain of bacteria. Preferably, a bacterial spore population may contain bacterial spores from two, three, four, five, or more bacterial strains. Generally, a bacterial spore population contains a majority of spores and a small number of vegetative cells. In some instances, a bacterial spore population does not contain vegetative cells. In some instances, a bacterial spore population may contain less than about 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 40%, or 50% vegetative cells, where the percentage of bacterial spores is calculated as ((number of vegetative cells / (number of spores in the population + number of vegetative cells in the population)) × 100). Generally, the populations of bacterial spores used in the disclosed methods, compositions, and products are stable (i.e., not germinating) and at least some individual spores in the population are capable of germination.
[0029] The population of bacterial spores used in the present disclosure may contain bacterial spores at different concentrations. In various examples, the population of bacterial spores is at least 1 x 10 2 , 5×10 2 , 1×10 3 , 5×10 3 , 1×10 4 , 5×10 4 , 1×10 5 , 5×10 5 , 1×10 6 , 5×10 6 , 1×10 7 , 5×10 7 , 1×10 8 , 5×10 8 , 1×10 9 , 5×10 9 , 1×10 10 , 5×10 10 , 1×10 11 , 5×10 11 , 1×10 12 , 5×10 12 , 1×10 13 , 5×10 13 , 1×10 14 , or 5 x 10 14particles / mL, particles / gram, or particles / cm 3 The spores may include, but are not limited to, spores of Bacillus subtilis.
[0030] Preferably, the bacterial spores include Bacillus spores, more preferably Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, Bacillus cereus, Bacillus thuringiensis, Bacillus mycoides, Bacillus tequilensis, Bacillus vallismortis, Bacillus mojavensis, Bacillus mojavensis), and mixtures thereof, and more preferably, the bacillus is selected from the group consisting of Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, and mixtures thereof.
[0031] Flavor composition (hereinafter referred to as "fragrance") The freshening composition comprises a fragrance formulated in an effective amount to provide the desired scent characteristics, homogeneously solubilize in the freshening composition, and deliver a consistent release profile. The fragrance preferably comprises a fragrance raw material (PRM) having a ClogP value greater than 1.0, at least 60% by weight of the fragrance. The fragrance may be present in an amount of at least 0.001%, 0.002% to 3%, 0.005% to 1%, or 0.005% to 0.4% by weight of the composition. Suitable fragrances, fragrance ingredients, and fragrance carriers are disclosed in U.S. Patent No. 5,500,138 and U.S. Application Publication No. 2002 / 0035053(A1).
[0032] Any type of perfume can be incorporated into the composition of the present invention.Preferred perfume ingredients are those suitable for application to fabrics and clothing.Typical examples of such preferred ingredients are listed in U.S. Patent No. 5,445,747.
[0033] PRMs can be defined by their boiling point ("BP") and octanol / water partition coefficient ("P"). Boiling points referred to herein are measured at normal standard pressure of 760 mmHg. The boiling points of many PRMs at the standard 760 mmHg pressure are summarized in "Perfume and Flavor Chemicals (Aroma Chemicals)" by Steffen Arctander, 1969.
[0034] When a long-lasting perfume odor on fabrics is desired, it is preferred to use at least an effective amount of a perfume ingredient having a boiling point above about 240° C., and preferably above about 250° C. Non-limiting examples of such preferred ingredients are found in U.S. Patent No. 5,500,138.
[0035] Other perfume ingredients can act as solvents. In some cases, this can be useful for facilitating the incorporation of other perfume or oil ingredients into the overall composition. A particularly good example here is benzyl alcohol. Benzyl alcohol has limited water solubility (clogP of about 1.2), which has been shown to be useful for incorporating other perfume ingredient mixtures into these compositions.
[0036] Sulfur-containing professional fragrance, The freshening composition may include a sulfur-containing pro-perfume. The technical effect of the sulfur-containing pro-perfume is to improve the stability of the freshening composition. The sulfur-containing pro-perfume compound may be present in the composition at various concentrations. Specifically, the freshening composition may include from about 0.001% to about 5% by weight of the freshening composition, alternatively from about 0.001% to about 3% by weight, alternatively from about 0.01% to about 1% by weight, alternatively from about 0.01% to about 0.5% by weight, alternatively from about 0.01% to about 0.1% by weight, alternatively at least about 0.02% by weight, or a different combination of the above upper and lower percentage limits, or any integer combination within the above range.
[0037] The freshening composition may include dodecylthio-damascone, which has the general structure shown below:
[0038] [ka]
[0039] Thio-damascone may be present in an amount of from about 0.001% to about 1.0%, alternatively from about 0.001% to about 5.0%, alternatively from about 0.001% to about 3.0%, alternatively from about 0.01% to about 1.0%, alternatively from about 0.01% to about 0.5%, alternatively from about 0.01% to about 0.1%, or alternatively at least about 0.02% by weight of the freshening composition.
[0040] The weight ratio of the perfume mixture to the sulfur-containing pro-perfume can be from about 0.01:1 to about 200:1, or from about 5:1 to about 50:1, or from about 10:1 to about 40:1, or from about 10:1 to about 20:1 by weight of the composition.
[0041] solvent The freshening composition may contain a solvent for solubilizing the fragrance. Specifically, the composition may contain less than 10% by weight, 0.01% to 5% by weight, 0.01% to 3% by weight, 0.01% to 1% by weight, or 0.01% to 0.05% by weight of the freshening composition. The solvent may be selected from the group consisting of alcohols, polyols, and mixtures thereof. The solvent may include low molecular weight monohydric alcohols (e.g., ethanol, methanol, and isopropanol, or polyols such as ethylene glycol and propylene glycol).
[0042] Alkoxylated Phenol The freshening composition can comprise alkoxylated phenol at a concentration of at least 0.0015% by weight of the composition.Without being bound by theory, compared to using conventional solvents such as ethanol to solubilize perfume in freshening composition, the use of alkoxylated phenol is that alkoxylated phenol has a combination of phenolic and ether functional groups in the same molecule, which provides the unique solvency properties of both polar and non-polar properties.This surfactant-like structure gives alkoxylated phenol the ability to bind differently with the liquid phase of the ingredients used in freshening composition (for example, water and perfume as described below), and be miscible with a wide range of hydrophilic and hydrophobic solvents.
[0043] surfactants The freshening composition may contain a surfactant to solubilize any excess hydrophobic organic material, particularly any PRM, as well as optional ingredients that may be added to the composition but are not readily soluble in the composition (e.g., insect repellents, antioxidants, etc.), to form a clear solution. The freshening composition may comprise less than 3.5%, 0.01% to 3%, 0.01% to 1%, or 0.01% to 0.05% of the freshening composition by weight of the freshening composition. Suitable surfactants are non-foaming or low-foaming surfactants. The surfactant may be selected from the group consisting of nonionic surfactants, cationic surfactants, amphoteric surfactants, zwitterionic surfactants, and mixtures thereof.
[0044] Odor-binding polymer The freshening composition of the present invention may contain a malodor-binding polymer. A malodor-binding polymer is a polymer with available functional groups (e.g., amines) that have an affinity to neutralize malodorous components. Monomers with available functional groups that have an affinity to neutralize malodorous components are also contemplated. In the case of amine-based compounds, the amine has an affinity for aldehyde malodors. The amine can react with aldehyde malodors to form new compounds such as aminols, imines, or enamines that are not odorous.
[0045] The malodor-binding polymer can be an amine-based compound, such as a monoamine, an amino acid, a polyethyleneimine polymer (PEI), a modified PEI, a substituted PEI; an acrylic acid polymer, such as a polyacrylate copolymer (e.g., Acumer™ 9000 from Rohm & Haas), a polyacrylic acid polymer (e.g., Acusol™ from Rohm & Haas), and a modified acrylate copolymer (e.g., Aculyn™ from Rohm & Haas); and a modified methacrylate copolymer (e.g., HydroSal™ from Salvona Technologies); or a mixture thereof.
[0046] Suitable concentrations of malodor-binding polymer are from about 0.01% to about 2% by weight of the freshening composition, alternatively from about 0.01% to about 1%, alternatively from about 0.01% to about 0.8%, alternatively from about 0.01% to about 0.6%, alternatively from about 0.01% to about 0.1%, alternatively from about 0.01% to about 0.07%, alternatively about 0.07%. Compositions with higher amounts of malodor-binding polymer may make fabrics more susceptible to soiling and / or may leave unacceptable visible stains on fabrics once the solution evaporates from the fabric.
[0047] Odor neutralizer The freshening composition may utilize one or more malodor neutralizing agents. Malodor neutralizing agents may include components that reduce the vapor pressure of odorous compounds, solubilize malodorous compounds, physically capture (e.g., agglomerate or encapsulate) odors, physically bind odors, or physically prevent odors from binding to inanimate surfaces. For example, aliphatic aldehydes react with amine odors, such as fish and tobacco odors. When used in combination with a malodor-binding polymer, the freshening composition may produce a material that neutralizes a wider range of malodors, thus further reducing malodors in the air or on inanimate surfaces.
[0048] Specifically, the freshening composition comprises a malodor counteractant: cyclodextrin, and the composition may further comprise a malodor counteractant selected from the group consisting of polyols, amine-functional polymers, aldehydes, and combinations thereof. As used herein, the term "cyclodextrin" includes any of the known cyclodextrins, such as unsubstituted cyclodextrins containing 6 to 12 glucose units, particularly α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, and / or derivatives thereof, and / or mixtures thereof.
[0049] buffer system The freshening composition may include a buffer. The buffer may be an acidic buffer. The buffer may be a dibasic acid, a carboxylic acid, a dicarboxylic acid such as maleic acid, a tricarboxylic acid such as citric acid, or a polycarboxylic acid such as polyacrylic acid. The carboxylic acid may be, for example, citric acid, polyacrylic acid, or maleic acid. The acid may be sterically stable. The acid may be used in the composition to maintain a desired pH. The freshening composition may have a pH of about 4 to about 9, alternatively about 4 to about 8.5, alternatively about 4 to about 6.9, or alternatively about 4 to about 6.7. Preferably, the buffer system includes one or more buffers selected from the group consisting of citric acid, maleic acid, polyacrylic acid, and combinations thereof. Buffer systems including buffers selected from the group consisting of citric acid, maleic acid, polyacrylic acid, and combinations thereof have been found to provide stable freshening compositions with extended shelf life.
[0050] Preferably, the buffer system comprises citric acid and sodium citrate. A buffer system comprising citric acid and sodium citrate has been found to provide a stable freshening composition with an extended shelf life.
[0051] The freshening composition may contain a secondary or tertiary amine. The freshening composition may contain at least about 0%, alternatively at least about 0.001%, alternatively at least about 0.01% by weight of a buffering agent. The composition may also contain no more than about 2%, alternatively no more than about 0.75%, alternatively no more than about 0.5% by weight of a buffering agent.
[0052] Wetting agent The freshening composition may contain a wetting agent that provides low surface tension, allowing the composition to spread more easily and evenly on hydrophobic surfaces such as polyester and nylon. It has been found that the freshening composition does not spread well without such a wetting agent. Spreading the composition also allows the composition to dry quickly, resulting in the treated material being ready for immediate use. Furthermore, compositions containing a wetting agent can better penetrate hydrophobic, oily soils for improved odor neutralization. Compositions containing a wetting agent can also improve "in-wear" static control. In concentrated compositions, the wetting agent facilitates the dispersion of many actives, such as antimicrobial actives and fragrances, in the concentrated freshening composition. Non-limiting examples of wetting agents include block copolymers of ethylene oxide and propylene oxide. Suitable block polyoxyethylene-polypropylene polymer surfactants include those based on ethylene glycol, propylene glycol, glycerol, trimethylolpropane, and ethylenediamine as the initial reactive hydrogen compound. Polymeric compounds made by sequential ethoxylation and propoxylation of the initial compound with a single reactive hydrogen atom, such as a C12-18 aliphatic alcohol, are generally not compatible with cyclodextrins. Certain block polymer surfactant compounds, designated Pluronic™ and Tetronic™ by BASF-Wyandotte Corp. (Wyandotte, Michigan), are readily available.
[0053] Another suitable wetting agent that can be used in the present composition is SILWET silicone polyether. Non-limiting examples of these silicone polyethers include SILWET™ surfactants available from Momentive Performance Chemical, Albany, New York. Exemplary SILWET™ surfactants are listed in Table 6 below. However, it will be understood that mixtures of the following surfactants may also be used in the present invention.
[0054] [Table 1]
[0055] The total amount of surfactants (e.g., solubilizers, wetting agents) in the freshening composition is from 0 to about 3%, alternatively from 0 to about 1%, alternatively from 0 to about 0.9%, alternatively from about 0.7%, alternatively from 0 to about 0.5%, alternatively from 0 to 0.3% by weight of the composition. Higher concentration compositions may make fabrics more susceptible to soiling and / or may leave unacceptable visible stains on fabrics once the solution evaporates.
[0056] Curable Polymers The compositions of the present invention may further comprise one or more curable polymers, where "curable polymer" refers to any polymer that has film-forming, adhesive, or coating properties that deposit on the surface to which the polymer is applied.
[0057] The curable polymer may be present in a concentration of about 0.5% to about 5% by weight of the fabric freshening composition. The molecular weight of the curable polymer is preferably 1,000 to 500,000, more preferably 2,000 to 250,000, and even more preferably 5,000 to 200,000.
[0058] The curable polymer according to the present invention can be any water-soluble or water-dispersible polymer. Preferably, the polymer is a film-forming polymer or a mixture of such polymers. This includes homopolymers or copolymers of natural or synthetic origin that contain functionalities that make the polymer water-soluble, such as hydroxyl, amine, amide, or carboxyl groups. The curable polymer can be cationic, anionic, nonionic, or amphoteric. The polymer can be a single type of polymer or a mixture thereof. Preferably, the curable polymer is selected from anionic polymers, nonionic polymers, amphoteric polymers, and mixtures thereof.
[0059] Anti-wrinkle agent The compositions of the present invention may optionally include an anti-wrinkle agent, which may include a silicone, preferably in an emulsion. The silicone may be present at a concentration of from about 0.5% to about 6% by weight of the composition.
[0060] structurant system The freshening composition may include a structuring agent system having at least one structuring agent. The structuring agent may include one or more biopolymers. Non-limiting examples of such biopolymers include polysaccharides such as polymers of glucose, fructose, galactose, mannose, rhamnose, glucuronic acid, and mixtures thereof.
[0061] The structurant system may be in the form of a polysaccharide system. Preferred polysaccharides include xanthan gum, glucomannan, galactomannan, and combinations thereof. Glucomannan may be derived from natural gums such as konjac gum. Galactomannan may be derived from natural gums such as locust bean gum. Polysaccharides may also include carrageenan. Gums may be modified, such as by deacetylation.
[0062] The freshening composition may include a polysaccharide system including at least two polysaccharides, such as a first polysaccharide and a second polysaccharide. The first polysaccharide may be xanthan gum. The second polysaccharide may be selected from the group consisting of glucomannan, galactomannan, and combinations thereof. The second polysaccharide may be selected from the group consisting of tara gum, konjac gum, locust bean gum, and combinations thereof.
[0063] Preferably, the first polysaccharide is xanthan gum and the second polysaccharide is konjac gum.
[0064] The first polysaccharide may be present at a concentration of greater than 10% and less than 90% by weight of the polysaccharide system, alternatively from about 20 to about 80% by weight, alternatively from about 40 to about 60% by weight.
[0065] The second polysaccharide may be present at a concentration of from about 15% to about 85% by weight of the polysaccharide system, alternatively from about 20% to about 80% by weight, alternatively from about 40% to about 60% by weight.
[0066] The total concentration of polysaccharides present in the freshening composition may be less than about 0.5%, alternatively preferably less than about 0.2%, alternatively preferably less than about 0.1%, more preferably less than 0.08%, and most preferably less than 0.06%. Without being bound by theory, it is believed that minimizing the total concentration of polysaccharides present in the freshening composition reduces residue and / or optimizes spray characteristics.
[0067] The polysaccharides may have a weight average molecular weight ranging from about 10,000 daltons to about 15,000,000 daltons, alternatively from about 200,000 daltons to about 10,000,000 daltons, alternatively from about 300,000 daltons to about 6,000,000 daltons, alternatively from about 300,000 daltons to about 500,000 daltons.
[0068] The polysaccharide system may be characterized by an average acetylation ratio, which may be in the range of about 2.0 to about 0.5, preferably in the range of about 1.5 to about 0.5.
[0069] The freshening composition may have a total protein concentration of less than about 100 parts per million (ppm), or less than 50 ppm, or less than 25 ppm, or less than 10 ppm. It may be desirable to limit the total protein concentration in the freshening composition to minimize discoloration of the surface to which the freshening composition is applied.
[0070] Freshening Products The freshening product comprises a spray dispenser, which may be transparent or translucent so that the freshening composition is visible, or at least partially visible, from outside the freshening product.
[0071] The spray dispenser can hold various amounts of freshening composition. The spray dispenser can withstand internal pressures ranging from about 20 psig to about 140 psig, or from about 80 to about 130 psig. The total composition output and spray droplet / particle size distribution can be selected to support particle removal effects while avoiding surface wetting issues. The total output is determined by the flow rate of the composition as it is released from the spray dispenser. To obtain a spray profile that produces minimal surface wetting, it is desirable to have a low flow rate and small five spray droplets.
[0072] The flow rate of the composition emitted from the spray dispenser can be from about 0.0001 grams per second (g / s) to about 2.5 grams per second. Alternatively, the flow rate can be from about 0.001 grams per second to about 2.5 grams per second, or from about 0.01 grams per second to about 2.0 grams per second. For aerosol sprayers, the flow rate is determined by measuring the rate at which the composition is expelled by the spray dispenser over any 60-second period of use.
[0073] The Sauter mean particle size of the spray droplets may range from about 10 μm to about 100 μm, or from about 20 μm to about 60 μm. The size of at least some of the spray droplets is small enough to remain airborne for at least about 10 minutes, in some cases at least about 15 minutes, or at least about 30 minutes. Small particles can be efficiently produced when the spray is dispensed at a wide cone angle. For a given nozzle component and delivery tube, the cone angle can be modified by changing the insertion depth of the nozzle into the delivery tube. The cone angle can be greater than about 20 degrees, or greater than about 30 degrees, or greater than about 35 degrees, or greater than about 40 degrees, or greater than about 50 degrees.
[0074] The spray dispenser can be configured to spray the freshening composition at an angle between parallel to the base of the container and perpendicular to the base of the container. The desired size of the spray droplets can be delivered by other types of spray dispensers that can be configured to provide a narrow range of droplet sizes. Such other spray dispensers include, but are not limited to, atomizers, ultrasonic nebulizers, electrostatic atomizers, and spinning disk atomizers. The spray dispenser can be constructed of a variety of materials, including plastic, metal, glass, or a combination thereof. The spray dispenser can be pressurized, non-pressurized, or non-aerosol.
[0075] The non-aerosol spray dispenser may include a pre-compressed trigger sprayer.
[0076] One suitable non-aerosol spray dispenser is a plastic non-aerosol dispenser. The dispenser can be constructed of polyethylene, such as high-density polyethylene, polypropylene, polyethylene terephthalate ("PET"), vinyl acetate, rubber elastomers, and combinations thereof. The spray dispenser can be made of clear PET. Another suitable spray dispenser includes a continuous-action sprayer, such as the FLAIROSOL™ dispenser manufactured by Afa Dispensing Group. The FLAIROSOL™ dispenser includes a bag-in-bag or bag-in-can container with a pre-compression spray engine and an aerosol-like compressor for the freshening composition. An example of a FLAIROSOL™ dispenser is described in U.S. Patent No. 8,905,271 (B2).
[0077] The pressurized spray dispenser may contain a propellant. Various propellants may be used. The propellant may include hydrocarbons; compressed gases such as nitrogen, carbon dioxide, air; liquefied gases or hydrofluoroolefins ("HFOs"); and mixtures thereof. Preferably, the product contains a propellant selected from the group consisting of compressed gases such as compressed air, compressed nitrogen, and combinations thereof. The propellants listed in U.S. Federal Register 30 49 C.F.R. §1.73.115, Part 2, Section 2.2 are considered acceptable. Propellant may include, inter alia, trans-1,3,3,3-tetrafluoroprop-1-ene, and optionally, gas with CAS number 1645-83-6. Such propellants offer the advantage of being non-flammable, although the freshening composition is not limited to non-flammable propellants. One such propellant is commercially available from Honeywell International (Morristown, New Jersey) under the tradename HFO-5 1234ze or GWP-6. If desired, the propellant may be condensable. "Condensable" means that the propellant changes from a gaseous substance to a liquid substance under pressure generated within the spray dispenser and during use. Generally, the highest pressure occurs after the spray dispenser is filled with the freshening composition, but before the user first dispenses the freshening composition. Condensable propellants offer the benefit of a flatter decompression curve as the freshening composition is depleted during use.
[0078] The pressurized spray dispenser may be free of hydrocarbon propellants. The freshening composition may be delivered from a spray dispenser that includes delivery components including, but not limited to, a valve for controlling flow and sealing the freshening composition within the spray dispenser, a button actuator, and a nozzle for dispersing the freshening composition into the environment. The freshening composition may be housed in a bag-in-can plastic spray dispenser.
[0079] spray dispenser The freshening compositions of the present invention can be contained in plastic containers constructed of hydrophilic perfume-compatible materials. These materials avoid complexation with the hydrophilic perfume ingredients so that absorption and / or permeation by the plastic container is minimized. Suitable hydrophilic perfume-compatible materials can be easily identified by determining the average hydrophilic perfume loss by gas chromatography analysis. The hydrophilic perfume-compatible material results in an average hydrophilic perfume ingredient loss of less than about 50%, alternatively less than about 20%, alternatively less than about 15%, alternatively less than about 10% of the individual hydrophilic perfume ingredients originally present.
[0080] Freshening compositions containing significant amounts of hydrophilic perfume ingredients can be stored at ambient temperature for 8 weeks in plastic containers constructed of at least 80% hydrophilic perfume-compatible materials. After storage, gas chromatography analysis is used to determine the amounts of various perfume ingredients remaining in the aqueous composition, and approximate losses are calculated based on the amount of each ingredient originally present.
[0081] An effective amount of hydrophilic perfume-compatible material suitable for the present invention is at least about 80% by weight of the container, alternatively about 80% to about 100% by weight, alternatively about 90% to about 100% by weight, alternatively 100% by weight. Non-limiting examples of hydrophilic perfume-compatible materials are high density polyethylene (HDPE), low density polyethylene (LDPE), polyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), polyethylene-co-vinyl alcohol (EVOH), fluorinated polymers such as Aclar®, acrylonitrile-methyl acrylate copolymers such as Barex®, or any resins of mixtures thereof. Alternatively, HDPE is utilized in the present invention.
[0082] In one embodiment, HDPE bottles manufactured by Plastipak Packaging Inc. (Champaign, Ill.) are used to contain the aqueous compositions of the present invention. HDPE bottles can be made by any blow molding, injection molding, and thermoforming process known in the art. For example, in the case of blow-molded bottles, heat-softened HDPE is extruded as a hollow tube into a mold cavity and pressed against the cold mold cavity walls by pressurized air to form the bottle. The bottle solidifies upon cooling.
[0083] It has been found that perfume compositions with a ClogP of less than about 3 do not fully absorb and / or penetrate hydrophilic perfume-compatible materials such as PP and HDPE, thus helping to prevent the permeation of perfume ingredients through plastic containers, which in turn provides consumers with a noticeable longer-lasting fragrance.
[0084] Any of the hydrophilic perfume compatible materials may be used in combination with one or more barrier materials including amorphous carbon, silicone oxide, or mixtures thereof, and metallized coatings.
[0085] How to use The freshening composition can be used by spraying, for example, by placing the freshening composition in a dispenser, such as a spray dispenser, and spraying an effective amount into the air or onto desired fabrics. "Effective amount," when used in reference to the amount of freshening composition, means an amount that neutralizes malodors to the point where they are not detectable by human olfactory sense, but does not saturate the item or surface, or form a liquid puddle thereon, so that when it dries, there is a deposit that is easily visible to the naked eye. Dispersion can be achieved by using a spray device, a roller, a pad, or other product forms, such as those described below. [Example]
[0086] The following examples are intended to more fully illustrate the present invention and should not be construed as limiting thereof, as many variations thereof are possible without departing from the scope of the invention. All parts, percentages and ratios herein are expressed as weight percent unless otherwise specified.
[0087] Examples 1-2: Compositions
[0088] [Table 2] (1) Dowanol EPh6-Dow (2) Lupasol HF - BASF (3) Silwet L-7600-Momentive (4) Uniquat 2250-Lonza (5) Koralone B-119-Dupont (6) One or more beta-cyclodextrins selected from hydroxypropyl beta-cyclodextrin (e.g., Cavasol® W7 HP - Wacker), randomly methylated beta-cyclodextrin, hydroxyethyl alpha-cyclodextrin and hydroxyethyl beta-cyclodextrin, randomly methylated beta-cyclodextrin. (7) Evozyme® P500 BS7, Genesis Biosciences, Cardiff
[0089] Example 3 The following example evaluates the effect of cyclodextrin on the growth of Bacillus spores on textile surfaces by counting colonies over time for two different treatments. The test was repeated four times, for a total of four replicates. Treatment 1: 50% tryptic soy broth (product code: 22092, Sigma Aldrich) solution in DI (deionized) water. Treatment 2: 50% tryptic soy broth (product code: 22092, Sigma Aldrich) solution in DI water, 1% beta-cyclodextrin (product code: OC06646, Carbosynth Ltd).
[0090] Knitted cotton swatches were cut into 2cm circles (de-sized EQWKC1, Warwick Equest Ltd) and sterilized by autoclaving prior to testing. The swatches were placed in a sterile Petri dish and 400µL of treatment solution was pipetted onto the surface of each swatch. Each swatch was then coated with 20µL of 5.24 x 10 6 The samples were inoculated with a Bacillus spore blend suspension containing 1000 cfu / mL of Bacillus spores. The Bacillus spores used were Evozyme® P500 BS7 (Genesis Biosciences, Cardiff). Two of each circular fabric were placed into a 50 mL sterile centrifuge tube using sterile forceps, and the lid was screwed on. The tubes were then stored in an oven at 35°C. Samples were taken at 2, 4, and 6 hours. The fabrics were vortexed with 9 mL of saline (product reference number: AEB110389, 0.85%, Biomerieux) for 30 seconds. The sample solution was serially diluted 1:10 with saline and placed on Tryptone Soya Agar (product reference number: 8084, Southern Group Laboratory Limited) and incubated at 35°C for 24 hours before colony counting.
[0091] The table below contains spore counts over time. Treatment 2, according to the present invention, shows significantly more colonies than Treatment 1 after 4 and 8 hours, demonstrating that cyclodextrin improves Bacillus growth.
[0092] [Table 3]
[0093] Example 4 Cyclodextrins are capable of absorbing volatile compounds that cause malodor. A malodor test was completed to determine whether Bacillus spores affect the anti-malodor benefits of cyclodextrins.
[0094] Swatches of knitted cotton were cut to 5cm squares (desized EQWKC1, Warwick Equest Ltd). The fabric and glass jar were sterilised by autoclaving prior to testing.
[0095] Malodor sources were absorbed by knitted cotton swatches in 50 mL glass jars (10 swatches per jar). These swatches were left with the malodor sources in the sealed jars at room temperature for 4 days, ensuring that the fabrics were not in contact with the malodor sources. Each swatch was then transferred to a 60 mL glass jar at room temperature for 3 days.
[0096] [Table 4]
[0097] Treatments were sprayed into 60 mL jars containing the swatches, one squirt per jar (Burke spray bottle TurnNSpray 250 mL, spray volume per squirt: 1.2 mL, Lab Unlimited, Cat. No. 6.252 153).
[0098] [Table 5]
[0099] Samples from Treatment 1 and Treatment 2 were labeled with random numbers for three panelists. Each panelist had a series of each treatment for both malodor sources. Panelists compared Treatment 1 and Treatment 2 with Treatment 0 and graded (0 = no preference, 4 = much better than Treatment 0).
[0100] The table below with panelist ratings shows that the mean scores for Treatment 2 are higher for both malodor sources. Therefore, we can conclude that Bacillus spores do not negatively affect the malodor performance of cyclodextrin.
[0101] [Table 6]
[0102] Dimensions and values disclosed herein should not be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm." The inventions disclosed in this specification are as follows. [1] A fabric freshening composition comprising: a) about 1×10 of said composition 2 ~Approx. 1×10 9 CFU / g of bacterial spores and b) Cyclodextrin 1. A fabric freshening composition comprising: [2] The composition described in [1], wherein the bacterial spores include Bacillus spores. [3] The genus Bacillus is selected from the group consisting of Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, Bacillus cereus, Bacillus thuringiensis, Bacillus mycoides, Bacillus tequilensis, Bacillus vallismortis, Bacillus mojavensis, Bacillus The composition according to [1] or [2], wherein the bacterial strain is selected from the group consisting of Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, and mixtures thereof. [4] The composition according to any one of [1] to [3], wherein the composition is an aqueous composition containing 90% to 99.5% by weight of water based on the weight of the composition. [5] The composition according to any one of [1] to [4], wherein the composition comprises at least 0.001% by weight of the composition, preferably 0.002% to 3% by weight of a fragrance, and preferably the fragrance comprises at least 60% by weight of the fragrance of a fragrance raw material having a ClogP greater than 1.0. [6] The composition according to any one of [1] to [5], wherein the bacterial spores are in particulate form, the composition comprises a polysaccharide system including a first polysaccharide and a second polysaccharide, the first polysaccharide being xanthan gum, and the second polysaccharide being selected from the group consisting of tara gum, konjac gum, locust bean gum, and combinations thereof. [7] The composition according to [6], wherein the first polysaccharide is present at a concentration of more than 10% and less than 90%, preferably 20% to 80% by weight, more preferably 40% to 60% by weight of the polysaccharide system. [8] The composition according to [6] or [7], wherein the polysaccharide has a weight-average molecular weight in the range of 10,000 daltons to 15,000,000 daltons, preferably 200,000 daltons to 10,000,000 daltons, more preferably 300,000 daltons to 6,000,000 daltons, and most preferably 300,000 daltons to 500,000 daltons. [9] The composition according to any one of [6] to [8], wherein the total polysaccharide concentration of the composition is less than 0.5% by weight of the composition, preferably less than 0.2% by weight, more preferably less than 0.1% by weight, more preferably less than 0.08% by weight, and most preferably less than 0.06% by weight.
[10] The composition according to any one of [1] to [9], further comprising less than 3.5% by weight, preferably 0.01% to 3% by weight, of a surfactant selected from the group consisting of nonionic surfactants, cationic surfactants, amphoteric surfactants, zwitterionic surfactants, and mixtures thereof.
[11] The composition according to any one of [1] to
[10] , further comprising less than 10% by weight of the composition, preferably 0.01% to 5% by weight of a solvent, preferably selected from the group consisting of alcohols, polyols, and combinations thereof.
[12] The composition according to any one of [1] to
[11] , wherein the composition further comprises a moisturizing agent, and preferably an anti-wrinkle agent.
[13] The composition according to any one of [1] to
[12] , wherein the composition further comprises a malodor counteractant selected from the group consisting of polyols, amine-functional polymers, aldehydes, and combinations thereof.
[14] A product and a spray device comprising the composition according to any one of [1] to
[13] , wherein the spray device is made of plastic, and preferably the plastic is selected from the group consisting of polypropylene, polyethylene terephthalate, high density polyethylene, and combinations thereof.
[15] A method for freshening fabrics, comprising a step of treating the fabrics with the composition according to any one of [1] to
[13] .
Claims
1. 1. A fabric freshening composition comprising: a) about 1 x 10 of said composition 2 ~Approx. 1×10 9 CFU / g of bacterial spores; b) cyclodextrin; Including, 1. A fabric freshening composition, wherein the bacterial spores comprise Bacillus spores.
2. 2. The composition of claim 1, wherein the Bacillus genus is selected from the group consisting of Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, Bacillus cereus, Bacillus thuringiensis, Bacillus mycoides, Bacillus tequilensis, Bacillus vallismortis, Bacillus mojavensis, and mixtures thereof.
3. The composition described in claim 1, wherein the Bacillus genus is selected from the group consisting of Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus licheniformis, Bacillus megaterium, Bacillus pumilus, and mixtures thereof.
4. The composition of claim 1, wherein the composition is an aqueous composition comprising 90% to 99.5% water by weight of the composition.
5. The composition of claim 1 , wherein the composition comprises at least 0.001% fragrance, by weight of the composition.
6. 2. The composition of claim 1, wherein the bacterial spores are in particulate form, the composition comprises a polysaccharide system comprising a first polysaccharide and a second polysaccharide, the first polysaccharide being xanthan gum and the second polysaccharide being selected from the group consisting of tara gum, konjac gum, locust bean gum, and combinations thereof.
7. 7. The composition of claim 6, wherein the first polysaccharide is present at a concentration greater than 10% and less than 90% of the polysaccharide system.
8. 7. The composition of claim 6, wherein the polysaccharide system has a weight average molecular weight ranging from 10,000 Daltons to 15,000,000 Daltons.
9. 7. The composition of claim 6, wherein the total polysaccharide concentration of the composition is less than 0.5% by weight of the composition.
10. 10. The composition of claim 1, wherein the composition further comprises less than 3.5% by weight of the composition of a surfactant selected from the group consisting of nonionic surfactants, cationic surfactants, amphoteric surfactants, zwitterionic surfactants, and mixtures thereof.
11. The composition of claim 1 , wherein the composition further comprises less than 10% by weight of the composition of a solvent.
12. The composition of claim 1 , wherein the composition further comprises a humectant.
13. 10. The composition of claim 1, wherein the composition further comprises a malodor counteractant selected from the group consisting of polyols, amine-functional polymers, aldehydes, and combinations thereof.
14. 14. A product comprising a composition according to any one of claims 1 to 13 and a spray device, wherein the spray device is made from plastic.
15. A method for freshening fabrics, comprising treating said fabrics with a composition according to any one of claims 1 to 13.
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