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WO2018184041A1 - Bande non tissée conçue pour utilisation dans un masque facial de beauté - Google Patents

Bande non tissée conçue pour utilisation dans un masque facial de beauté Download PDF

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Publication number
WO2018184041A1
WO2018184041A1 PCT/AT2017/000022 AT2017000022W WO2018184041A1 WO 2018184041 A1 WO2018184041 A1 WO 2018184041A1 AT 2017000022 W AT2017000022 W AT 2017000022W WO 2018184041 A1 WO2018184041 A1 WO 2018184041A1
Authority
WO
WIPO (PCT)
Prior art keywords
face mask
beauty
nonwoven material
nonwoven
filaments
Prior art date
Application number
PCT/AT2017/000022
Other languages
English (en)
Inventor
Tom Carlyle
Mirko Einzmann
Gisela Goldhalm
Malcolm John Hayhurst
Katharina Mayer
Ibrahim SAGERER-FORIC
Original Assignee
Lenzing Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lenzing Ag filed Critical Lenzing Ag
Priority to PCT/AT2017/000022 priority Critical patent/WO2018184041A1/fr
Publication of WO2018184041A1 publication Critical patent/WO2018184041A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
    • D04H3/11—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by fluid jet
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/002—Masks for cosmetic treatment of the face
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0212—Face masks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A61K8/027—Fibers; Fibrils
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/731—Cellulose; Quaternized cellulose derivatives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D04H1/4258—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/013—Regenerated cellulose series
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/26—Optical properties
    • A61K2800/262—Transparent; Translucent
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns

Definitions

  • This invention relates to a nonwoven web suitable to be used as the base sheet for a beauty face mask, and, more particularly, to an essentially pure cellulose nonwoven web formed from essentially continuous filaments and multibonded by merged filaments, hydrogen bonding and/or physical intermingling of filaments.
  • This multibonded web provides the dimensional stability, wet strength, designed lotion holding capacity and liquid take-up rate, and ability to release said lotions during use (liquid release), distribution of lotion rapidly throughout the mask, softness, desired adhesion to skin, and designed transparency to the face mask.
  • a beauty face mask is a consumer product applied to the face to improve skin and/or facial care, wellness and beauty.
  • essentially pure cellulose shall address the fact that cellulosic moulded bodies, e.g. made according to the lyocell process, always contain a small amount of polymers other than cellulose, namely hemicellulose. This does not influence in any way the suitability for the use according to this invention.
  • EP 2,453,047 discloses the use of spunlace and other nonwoven substrates based on cellulosic fibres for beauty face masks.
  • JP 3,944,526 describes the use of hydroentangled nonwovens with a surface of ultrafine fibres.
  • 2011/004834 describes the use of a two-nonwoven-layer face mask, with one layer to absorb liquid and the other to adhere to the user's skin. It is known that there are key properties needed for a beauty face mask, these being wet strength, the ability to hold or retain a liquid lotion, the ability to release that lotion uniformly over a user's skin, and conformity to the user's face. Further, users desire softness and a comfortable fit to the face, and some
  • EP 2,860,307 describes a two layer nonwoven; one layer a liquid retaining layer composed of carded or spunlace hydrophilic fibres, while the other layer can be a lightweight meltblown polyolefin to provide strength and transparency.
  • a beauty face mask must comfortably conform to the user's face, must be soft on the skin, must be able to hold and release sufficient liquid lotions to perform needed actions on the user's face, whether it is
  • moisturizing, or providing a skin care treatment it must have sufficient wet strength to remain intact during use and application; it must have the ability to rapidly transfer liquids to all regions of the mask; it must have sufficient stretch to allow application and fitting; finally, transparency when wet does allow the consumer to fit the mask better.
  • JP 2015070968 A describes a cellulose non-woven fabric formed of a cellulose fiber having a fiber diameter of 5 [mu]m or more and 12 [mu]m or less has a basis weight of 20 g/mor more and 60 g/mor less, and a thickness of 0.20 mm or more and 0.50 mm or less.
  • the whiteness in a dried state is 30% or more and 70% or less.
  • the transparency in a wet state is 60% or more and 100% or less.
  • the amount of distillation water extract is 1000 mg/kg or less, and the morphological stability represented by the following formula is 88% or more and 98% or less.
  • Morphological stability [1- ⁇
  • the present invention relates to the use of specially designed nonwoven substrates produced using novel variants of the solution blown nonwoven process, comprising 100% cellulose polymers.
  • U.S. 6,358,461 , U.S. 7,067,444, U.S. 8,012,565, U.S. 8,191 ,214, U.S. 8,263,506 and U.S. 8,318,318 all teach methods for producing and using spunlaid cellulose webs. None of these teach either production methods for or products addressing the specific substrate requirements for beauty face masks.
  • beauty face masks have consisted of a substrate (either film, textile or nonwoven) or combinations of substrates. These face masks are used in combination with an externally applied liquid, solution, or lotion.
  • the beauty face mask must be able to absorb high levels of these liquids and retain them throughout the application process; but then the beauty face mask must release the liquid to the face and skin uniformly over a reasonable amount of time. These liquids are expensive; liquid retained by the mask after use is wasted and not useful in affecting the face and skin.
  • a beauty face mask should adhere to the face and skin during use, but be removable after use with no remaining fibres or mask materials left on the face and skin.
  • the mask must have sufficient strength when wet to be applied by the user without damage.
  • the mask must be soft enough for comfort and conformable enough to fit varying faces and facial structures. Transparency when wet is desirable in optimizing contact of the mask at all points of the face.
  • nonwovens and in combination with films and coatings.
  • the best technology today and the most widely used substrate commercially appears to be spunlace or spunlace in combination with films or coatings or other nonwovens.
  • Most beauty face mask nonwovens use a cellulosic fibre as at least one component, including cotton, lyocell, and wood pulp.
  • Spunlace cellulosic fibre based nonwovens have strength and softness, but liquid absorbency and retention can be insufficient. Additionally, adhesion to skin and uniform liquid dispensing can be problematic.
  • a nonwoven material for use in a beauty face mask that comprises essentially pure cellulosic nonwoven web produced as essentially continuous filaments, which material can be loaded with various skin care and beauty lotions or liquids, has high wet strength and is absorbent and is able to dispense absorbed lotions and liquids uniformly, which it is (a) bonded by merged filaments, hydrogen bonding and physical intermingling of filaments, (b) is soft, conformable and adherent to skin and (c) is compostable and based on renewable resources.
  • the cellulosic nonwoven web is made according to a lyocell process.
  • Cellulosic fibres can be produced by various processes.
  • a lyocell fibre is spun from cellulose dissolved in N-methyl morpholine N-oxide (NMMO) by a meltblown process, in principle known from e.g. EP 1093536 B1 , EP 2013390 B1 and EP 2212456 B1.
  • meltblown it will be understood that it refers to a process that is similar or analogous to the process used for the production of synthetic thermoplastic fibres (filaments are extruded under pressure through nozzles and stretched to required degree by high velocity/high temperature extension air flowing substantially parallel to the filament direction), even though the cellulose is dissolved in solution (i.e.
  • the web is formed by a spun bonding process, where filaments are stretched via lower temperature air.
  • spunbonded synthetic fibres are longer than meltblown synthetic fibres which usually come in discrete shorter lengths. Fibres formed by the solution blown lyocell process can be continuous or discontinuous depending on process conditions such as extension air velocity, air pressure, air temperature, viscosity of the solution, cellulose molecular weight and distribution and combinations thereof.
  • the fibres are contacted with a non-solvent such as water (or water/NMMO mixture) by spraying, after extrusion but before web formation.
  • a non-solvent such as water (or water/NMMO mixture)
  • the fibres are subsequently taken up on a moving foraminous support to form a nonwoven web, washed and dried.
  • Freshly-extruded lyocell solution ('solvent spun', which will contain only, for example, 5-15% cellulose) behaves in a similar way to 'sticky' and deformable thermoplastic filaments. Causing the freshly-spun filaments to contact each other while still swollen with solvent and with a 'sticky' surface under even low pressure will cause merged filament bonding, where molecules from one filament mix irreversibly with molecules from a different filament. Once the solvent is removed and coagulation of filaments completed, this type of bonding is impossible. It is another object of the present invention to provide a process for the manufacture of a nonwoven material consisting of essentially continuous cellulosic filaments by:
  • coagulation liquor i.e. a liquid which is able to cause coagulation of the dissolved cellulose; in a lyocell process this preferably is water or a diluted solution of NMMO in water, is applied to control the merged filament bonding.
  • the amount of merged filament bonding is directly dependent on the stage of coagulation of the filaments when the filaments come into contact. The earlier in the coagulation process that the filaments come into contact, the greater the degree of filament merging that is possible. Both placement of the coagulation liquor application and the speed at which the application liquor is applied can either increase, or decrease, the rate of coagulation. Which results in control of the degree (or amount) of merged filament bonding that occurs in the material.
  • the merged filament bonding is further controlled by filament spinning nozzle design and arrangement and the configuration and temperature of filament extension air.
  • the degree of molecular alignment that is present as the solution exits the spinning nozzle has an impact on the coagulation rate. The more aligned the molecules are, the faster the coagulation rate, and conversely, the less aligned the molecules are, the slower the coagulation rate.
  • the spinning nozzle design and arrangement, along with the molecular weight of the cellulosic raw material used will determine the starting coagulation rate at the exit of the spinning nozzle. Additionally, the rate of cooling (temperature decrease) of the solution upon spinning nozzle exit will impact the coagulation rate as well.
  • At least two spinnerets also known as jets
  • spinnerets preferably between two and ten, and further preferred between 2 and 6, each one arranged to form a layer of nonwoven web
  • spinnerets are used to obtain a multilayer nonwoven material.
  • the filaments are spun using a solution of cellulose in an aqueous amine oxide and the coagulation liquor is water, preferably with a content of amine oxide not being able to dissolve cellulose, also referred to as a lyocell process; the manufacture of such a solution is in principle known, e.g. from U.S. 6,358,461 , U.S. 7,067,444, U.S. 8,012,565, U.S. 8,191 ,214, U.S.
  • amine oxide is NMMO.
  • the present invention describes a cellulosic nonwoven web produced via a meltblown or spunbond-type process.
  • the filaments produced are subjected to touching and/or compaction and/or intermingling at various points in the process, particularly before and during initial web formation.
  • Contact between filaments where a high proportion of solvent is still present and the filaments are still swollen with said solvent causes merged filament bonding to occur.
  • the amount of solvent present as well as temperature and contact pressure controls the amount of this bonding.
  • the amount of filament intermingling and hydrogen bonding can be limited by the degree of merged filament bonding.
  • This is the result of a decrease in filament surface area and a decrease in the degree of flexibility of the filaments.
  • the degree of merged filament bonding increase, the amount of overall surface area is decreased, and the ability of cellulose to form hydrogen bonds is directly dependent on the amount of hydroxyl groups present on the cellulosic surface.
  • filament intermingling happens as the filaments contact the forming belt. The filaments are traveling at a faster rate of speed than the forming belt. Therefore, as the filament contacts the belt, it will buckle and sway side to side, and back and forth, just above the forming belt.
  • the filaments will intermingle with neighboring filaments. If the filaments touch and merge prior to the forming belt, this limits the number of neighboring filaments by which it can intermingle with. Additionally, filaments that merge prior to contacting the forming belt with not have the same degree of flexibility as a single filament and this will limit the total area over which the filament will buckle and sway.
  • the nonwoven material is dried prior to subsequent bonding/treatment.
  • the percentage of each type of bonding is controlled using a process with up to two compaction steps, where one of these compaction steps is done after step d. of the inventive process where the spun filaments are still swollen with a solvent, and one of these compaction steps is done before or in step e. of the inventive process where all or most of the solvent has been removed and the web has been wet with water.
  • control of the coagulation of the spun solution is a factor in controlling the degree of merged filament bonding.
  • This preferred embodiment concerns decreasing the coagulation rate to a state where additional compaction steps can be used after filament laydown to further increase the actual amount of merged filament boding that is achievable. It might be helpful to view the maximum achievable filament bonding as the state where we have merged all filaments into an essentially film-like structure.
  • the present invention describes a process and product where merged filament bonding, physical intermingling and hydrogen bonding can be controlled independently.
  • the degree of merged filament bonding can limit the degree of physical intermingling and hydrogen bonding that can occur.
  • process conditions can be adjusted to optimise these bonding mechanisms between layers. This can include modifying ease of delamination of layers, if required.
  • additional bonding/treatment steps may optionally be added. These bonding/treatment steps may occur while the web is still wet with water, or dried (either fully or partially).
  • bonding/treatment steps may add additional bonding and/or other web property modification.
  • These other bonding/treatment steps include hydroentangling or spunlacing, needling or needlepunching, adhesive or chemically bonding.
  • various post- treatments to the web may also be applied to achieve specific product performance.
  • post-treatments it is possible to apply finishes and other chemical treatments directly to the web of this invention during production which will not then be removed, as occurs with, for example, a post-treatment hydroentanglement step.
  • Varying the degree of merged filament bonding provides unique property characteristics for nonwoven cellulose webs with regards to softness, stiffness, dimensional stability and various other properties. Properties may also be modified by altering the degree of physical intermingling before and during initial web formation. It is also possible to influence hydrogen bonding, but the desired effect of this on web properties is minor. Additionally, properties can be adjusted further by including an additional
  • bonding/treatment step such as hydroentangling, needlepunching, adhesive bonding and/or chemical bonding.
  • Each type of bonding/treatment provides benefits to the nonwoven web.
  • hydroentangling can add some strength and soften the web as well as potentially modifying bulk density; needling is typically employed for higher basis weights and used to provide additional strength; adhesive and chemical bonding can add both strength and surface treatments, like abrasive material, tackifiers, or even surface lubricants.
  • the present invention allows independent control of the key web bonding features: merged filaments, intermingling at web formation, hydrogen bonding and optional additional downstream processing. Manipulation of merged filament bonding can be varied to predominantly dictate the properties of the nonwoven web.
  • This material is designed to be a sustainable and cost effective nonwoven with high wet strength, high absorbency, uniform and complete liquid dispensing, consumer pleasing softness, adherent and conformable to face and skin and transparent when wet.
  • This nonwoven web which is a 100% essentially continuous filament cellulose nonwoven will provide both high strength and high absorbency and liquid handling properties, and is a sustainable product.
  • the basis weight of the nonwoven web is between 25 and 80 grams per square meter. This range of basis weights defines the preferred area where material opacity, strength, fluid management and conformability can be optimized to meet the consumer expectations for a beauty face mask.
  • Another object of the present invention is the use of a nonwoven material as described above for the manufacture of a beauty face mask.
  • manufacture of a beauty face mask includes the addition of a skin care or beauty lotion or liquid to the nonwoven material. Suitable lotions and liquids are in principle well known to the expert.
  • the beauty face mask can be packaged wet and ready for use by the consumer
  • Another object of the present invention is the use of a nonwoven material as described above for the manufacture of a beauty face mask.
  • manufacture of a beauty face mask includes the addition of a skin care or beauty lotion or liquid to the nonwoven material in a low moisture content formulation.
  • Suitable lotions and liquids are in principle well known to the expert.
  • the beauty face mask can be packaged dry and water-activated at the point of use by the consumer. This gives remarkable economic and handling advantages to the retailers as well as to the users of the face mask.
  • Composition A Water, Butylene Glycol, Glycerin, Peg/Ppg/Polybutylene Glycol-8/5/3 Glycerin, Phenoxyethanol, 1 ,2-Hexanediol, Sodium Polyacrylate, Fragrance, Sodium Hyaluronate, Xanthan Gum, Maltodextrin, Brassica
  • Oleracea Italica (Broccoli) Sprout Extract Extract, Orchis Mascula Extract, Hydrolyzed Rice Bran Extract, Citric Acid, Plantago Major Seed Extract
  • Composition B Water, Glycerin, Sodium Polyacrylate, Pentylene Glycol, Glycosyl Trehalose, Sorbitan Stearate, Hydrogenated Starch Hydrolysate, Phenoxyethanol, Tartaric Acid, Aluminum Glycinate, Butylene Glycol,
  • Composition C Water; methyl gluceth-20; peg-75; bis-peg-18 methyl ether dimethyl silane; butylene glycol; propanediol; glycereth-26; cladosiphon okamuranus extract; silybum marianum (lady's thistle) extract; echinacea purpurea (coneflower) extract; garcinia mangostana peel extract; anthemis nobilis (chamomile) flower extract; caffeine; coffea arabica (coffee) seed extract; artemia extract; betula alba (birch) extract; poria cocos sclerotium extract; hydrolyzed rice extract; camelina sativa seed oil; algae extract; lactobacillus ferment; hydrolyzed algin; squalane; CI2-15 alkyl benzoate; yeast extract ⁇ faex ⁇ suit de levure; caprylyl glycol; tocopheryl acetate; peg-8 glyceryl is
  • Still another object of the present invention is a beauty face mask which contains a nonwoven material as described above as a base sheet and a skin care or beauty lotion or liquid contained in the nonwoven material.
  • the current invention provides all of the most desired properties for a beauty face mask, i.e. dimensional stability, wet strength, designed lotion holding capacity and liquid take-up rate, and ability to release said lotions during use (liquid release), distribution of lotion rapidly throughout the mask, softness, desired adhesion to skin, and designed transparency while being 100% biodegradable and compostable, based on renewable and sustainable raw materials and produced using an environmentally sound process.
  • a nonwoven material as described above for the manufacture of a beauty face mask.
  • manufacture of a beauty face mask includes the addition of a skin care or beauty lotion or liquid to the nonwoven material. Suitable lotions and liquids are in principle well known to the expert.
  • the beauty face mask can be packaged wet and ready for use by the consumer
  • a nonwoven material as described above for the manufacture of a beauty face mask.
  • manufacture of a beauty face mask includes the addition of a skin care or beauty lotion or liquid to the nonwoven material in a low moisture content formulation. Suitable lotions and liquids are in principle well known to the expert.
  • the beauty face mask can be packaged dry and water-activated at the point of use by the consumer. This gives remarkable economic and handling advantages to the retailers as well as to the users of the face mask.
  • the invention will now be illustrated by examples. These examples are not limiting the scope of the invention in any way. The invention includes also any other embodiments which are based on the same inventive concept.
  • a face mask with a 38 gsm basis weight base sheet according to the invention was compared to the performance of a commercially available face mask of same basis weight also being comprised of essentially continuous cellulosic filaments.
  • the face masks were tested for water uptake and water release by the following methods.
  • the test for water uptake was conducted according to DIN 53923.
  • conditioned samples (10x10 cm size) were loaded 3 times with water and allowed to equilibrate for 2 hours.
  • the wet samples were then put between two collagen foils (10x10 cm) and loaded with a weight of 200 g using a crystallizing dish for 10 seconds.
  • the water released to the collagen foil was not absorbed by the foil but rather remained on the surface, was quantified gravimetrically. For each sample a threefold determination was performed and average values were used for comparison (coefficient of variation below 14%).
  • the face mask of this invention offers higher liquid take-up and, particularly higher liquid release than the comparative commercial product. These attributes are particularly beneficial for face masks.
  • the test method was as follows. The wetted samples (10 fold loaded with water, equilibrium time 10 min) were put on a plastic foil and on a defined light source with light shining through the samples. With software analysis the gray value of each pixel was measured.
  • the instruments and conditions used were:
  • FIG. 1 shows the transparency evaluation of example 2; x-axis: gray values; y-axis: number of pixel per gray value
  • the face mask of the invention was evaluated for wicking (or spread ability) of liquids, versus commercial samples (all samples around 38 gsm).
  • the test method was as follows.
  • test liquid water with 2g/L dye Sulfacide brilliant green
  • conditioned face mask sample 23°C ⁇ 2°C rel. humidity 50% ⁇ 5%
  • Eppendorf pipette After 5 min a picture of the liquid spread was taken and software (lmageJ1.49v, National Institute of Health, USA) used to evaluate the area of the liquid spread.
  • This benefit may also lead to fast fabric equilibrium with water based lotions, thus being able to supply dry skin spots by 'pulling' lotion from adjacent areas of the face mask rapidly.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dermatology (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

L'invention concerne un matériau non tissé destiné pour utilisation dans un masque facial de beauté, qui comprend 100 % de bande non tissée cellulosique produite sous la forme de filaments essentiellement continus, dont le matériau peut être chargé avec diverses lotions ou liquides de soins de la peau et de beauté, présente une haute résistance à l'humidité et est absorbant et est capable de délivrer uniformément des lotions et des liquides absorbés, caractérisé en ce qu'il est (a) lié par des fibres fusionnées ou fondues, une liaison hydrogène et un enchevêtrement physique de filaments, (b) est souple, conformable et adhérent à la peau et (c) est compostable et basé sur des ressources renouvelables. L'invention concerne en outre l'utilisation du matériau non tissé selon l'invention pour fabriquer un masque facial de beauté qui comprend l'ajout d'une lotion ou d'un liquide de soin de la peau ou de beauté au matériau non tissé, ainsi qu'un masque facial de beauté fabriqué en conséquence.
PCT/AT2017/000022 2017-04-03 2017-04-03 Bande non tissée conçue pour utilisation dans un masque facial de beauté WO2018184041A1 (fr)

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CN110184746A (zh) * 2019-06-20 2019-08-30 苏州米颜生物科技有限公司 一种多孔纤维面膜基布的制备方法
EP4134149A1 (fr) 2021-08-11 2023-02-15 Lenzing Aktiengesellschaft Masque facial comportant une couche de support
FR3142900A1 (fr) * 2022-11-08 2024-06-14 L'oreal Composition de soin de matières kératineuses et masque la contenant

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CN110184746A (zh) * 2019-06-20 2019-08-30 苏州米颜生物科技有限公司 一种多孔纤维面膜基布的制备方法
EP4134149A1 (fr) 2021-08-11 2023-02-15 Lenzing Aktiengesellschaft Masque facial comportant une couche de support
WO2023016921A1 (fr) 2021-08-11 2023-02-16 Lenzing Aktiengesellschaft Masque facial doté d'une couche de support
FR3142900A1 (fr) * 2022-11-08 2024-06-14 L'oreal Composition de soin de matières kératineuses et masque la contenant

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