US20190216697A1 - Hygiene product pod and methods of using same - Google Patents

Hygiene product pod and methods of using same Download PDF

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Publication number
US20190216697A1
US20190216697A1 US15/986,592 US201815986592A US2019216697A1 US 20190216697 A1 US20190216697 A1 US 20190216697A1 US 201815986592 A US201815986592 A US 201815986592A US 2019216697 A1 US2019216697 A1 US 2019216697A1
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United States
Prior art keywords
hygiene product
pod
envelope
hygiene
total weight
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Abandoned
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US15/986,592
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English (en)
Inventor
Benjamin Gabriel STERN
Robert Hutton Ray
James J. Ramirez
Matthew Gernstein
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Nohbo Inc
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Nohbo LLC
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Priority to US15/986,592 priority Critical patent/US20190216697A1/en
Assigned to NOHBO, LLC. reassignment NOHBO, LLC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RAMIREZ, JAMES J., RAY, Robert Hutton, STERN, Benjamin Gabriel, GERNSTEIN, MATTHEW
Priority to US16/149,483 priority patent/US20190216698A1/en
Priority to US16/149,543 priority patent/US11744786B2/en
Priority to PCT/US2019/014000 priority patent/WO2019143809A1/en
Priority to CA3087970A priority patent/CA3087970C/en
Priority to JP2020539071A priority patent/JP2021510712A/ja
Priority to CN201980008263.8A priority patent/CN112236124A/zh
Priority to EP19740951.9A priority patent/EP3740186A4/de
Priority to IL276098A priority patent/IL276098B2/en
Priority to AU2019209854A priority patent/AU2019209854B2/en
Priority to MX2020007356A priority patent/MX2020007356A/es
Publication of US20190216697A1 publication Critical patent/US20190216697A1/en
Assigned to NOHBO, INC. reassignment NOHBO, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: NOHBO LLC
Priority to US18/211,834 priority patent/US12558299B2/en
Priority to JP2024103420A priority patent/JP2024129073A/ja
Abandoned legal-status Critical Current

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    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/34—Alcohols
    • A61K8/345—Alcohols containing more than one hydroxy group
    • 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
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/0087—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks for samples
    • 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
    • A61K8/11—Encapsulated compositions
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/40—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing nitrogen
    • A61K8/42—Amides
    • 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
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/46—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing sulfur
    • 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
    • A61Q19/10—Washing or bathing preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/02—Preparations for cleaning the hair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/12—Preparations containing hair conditioners
    • 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
    • A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
    • A61K2800/87—Application Devices; Containers; Packaging

Definitions

  • aspects of the present disclosure provide a hygiene product pod configured for single-use applications, and a method of using such a pod.
  • Hygiene products such as shampoo, bodywash, shaving cream, and conditioner are usually sold in a liquid or gel format.
  • Such hygiene products generally contain active agents, such as surfactants and/or conditioners, in addition to significant amounts of water and/or viscosity control agents.
  • active agents such as surfactants and/or conditioners
  • Such hygiene products are most commonly provided in bottles containing enough product for many applications. While such products are suitable for many consumer applications, there is a need for smaller amounts of hygiene product, particularly in the travel and hospitality industries.
  • Hygiene products have been provided in small bottles for use in the hospitality and/or travel industries.
  • the small bottles of shampoo/conditioner/shaving cream generally found in the hospitality industry have a high packaging to product ratio, which contributes to higher costs and excessive amounts of waste.
  • Various embodiments include a hygiene product having a carrier that includes butylene glycol in an amount ranging from about 40 wt % to about 70 wt %, based on the total weigh of hygiene product; and an active agent comprising at least one surfactant.
  • Various embodiments include a single-use hygiene product pod having a water-soluble envelope and a hygiene product sealed in the envelope, in which the hygiene product includes a carrier comprising butylene glycol in an amount ranging from about 40 wt % to about 70 wt %, based on the total weigh of hygiene product, and an active agent comprising at least one surfactant.
  • Various embodiments include a method of using a hygiene product pod comprising a water-soluble envelope and a hygiene product sealed in the envelope in which the hygiene product includes an active agent and a carrier comprising butylene glycol in an amount ranging from about 40 wt % to about 70 wt %, based on the total weight of hygiene product, the method including applying water to the pod to dissolve the envelope and release the hygiene product, applying the hygiene product to at least one body part of a user, and rinsing the hygiene product from the body part.
  • FIG. 1A photograph of the hygiene product pod various embodiments of the present disclosure.
  • FIG. 1B is a perspective view of the pod of FIG. 1A after an optional cutting process.
  • FIG. 2 is a top plan view of a hygiene product pod, according to various embodiments of the present disclosure.
  • FIG. 3 is a top view of a hygiene product pod, according to various embodiments of the present disclosure.
  • FIG. 4 is a block diagram illustrating a method of using a hygiene product pods, according to various embodiments of the present disclosure.
  • Ranges can be expressed herein as from “about” one particular value, and/or to “about” another particular value. When such a range is expressed, examples include from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about” or “substantially” it will be understood that the particular value forms another aspect. In some embodiments, a value of “about X” may include values of +/ ⁇ 1% X. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint.
  • Various embodiments relate to hygiene product pods in which the hygiene product is encapsulated in a water-soluble envelope in a single dose format.
  • the hygiene product pods may provide cleansing and/or conditioning agents for hair and/or skin.
  • the hygiene product includes an active ingredient, such as shampoo, conditioner, or a combination thereof, within a carrier that features butylene glycol in an amount ranging from about 40 wt % to about 70 wt %, based on the total weigh of hygiene product.
  • Various embodiments include single-dose hygiene products in the form of pods.
  • the term “pod” refers to water-soluble envelope in the shape of a capsule, sphere, drop, or the like, filled with a hygiene product in which includes an active ingredient within a carrier that is butylene glycol in an amount ranging from about 40 wt % to about 70 wt %, based on the total weigh of hygiene product.
  • a pod may include an envelope encapsulating a liquid or gel of hygiene product.
  • a pod may have any suitable shape and/or size.
  • a pod may contain a sufficient amount of hygiene product for a single use.
  • a pod may contain an amount of shampoo sufficient to clean one head of hair, may contain an amount of bodywash sufficient to wash one body, or may contain an amount of a shaving product sufficient to shave one or more body parts.
  • shaving product may refer to shaving cream, shaving gel, or a precursor composition configured to form a shaving product.
  • a pod containing shampoo, conditioner, or shampoo and conditioner within a butylene glycol-based carrier may range in volume from about 4 g to about 12 g, such as from about 5 g to about 8 g.
  • a pod containing bodywash may range in volume from about 6 g to about 15 g, such as from about 8 g to about 10 g.
  • Pods including a concentrated active agent may be smaller than pods containing undiluted or semi-diluted active agents.
  • FIG. 1A is a photograph of hygiene product pods 100 , according to various embodiments.
  • FIG. 1B is a perspective view of the pod 100 of FIG. 1A , after an optional trimming process.
  • the pod 100 includes a hygiene product 104 sealed in a water-soluble envelope 102 .
  • the pod 100 may be generally drop-shaped (as shown). However, the pod 100 is not limited to any particular shape.
  • the pod 100 may be rectangular, circular, triangular, square, pentagonal, circular, elliptical, tablet-shaped, or the like.
  • the envelope 102 may be configured to rapidly dissolve in the presence of a solvent such as water.
  • the envelope 102 may include or be formed of a water-soluble material, such as polyvinyl alcohol (PVOH), carboxymethyl cellulose (CMC), or the like.
  • the water-soluble material may be in the form of a film or a woven or non-woven fiber, such as a PVOH or CMC fiber.
  • the envelope 102 may be formed of a PVOH film, such as Monosol 9643, available from Kuraray Inc.
  • the envelope 102 may have a thickness ranging from about 0.5 mm to about 5.0 mm
  • the envelope 102 may have a pH ranging from about 4.0 to about 9.0, at a temperature of about 25° C.
  • the envelope 102 may be configured to dissolve in water at about 25° C. in a time period ranging from about 3 seconds to about 15 seconds, such as from about 5 seconds to about 7 seconds.
  • a PVOH envelope 102 of PVOH may be particularly beneficial.
  • dissolved PVOH may act as a film-former (e.g., conditioning agent) and/or a foam-boosting agent.
  • a PVOH envelope 102 may unexpectedly improve the properties of the hygiene product 104 by adding to suds, bubbles, or foam when in use.
  • the pod 100 may be formed by sealing two sheets or layers of the water-soluble material around the hygiene product 104 .
  • the envelope 102 may be formed by placing the hygiene product 104 between two sheets of the water-soluble material, and then sealing the perimeters of the two sheets so as to form a seal region 106 that extends around the entire perimeter of the pod 100 .
  • the sheets may be partially sealed (e.g., sealed along three sides) to form the envelope 102 , after which the hygiene product 104 may be inserted into an open end of the envelope 102 followed by sealing of the open end to complete the pod 100 .
  • the sealing may be accomplished using any suitable sealing method.
  • the water-soluble material may be sealed using a heat sealing method.
  • the sealing may include the use of a water-soluble adhesive.
  • pods 100 may be formed using a packing machine, such as a Hydroforma packaging machine manufactured by Cloud Packaging Solutions, Des Plaines, Ill.
  • the seal region 106 may be optionally removed from the pod 100 , to form a tab 108 .
  • the envelope 102 may be cut during manufacturing of the pod 100 .
  • the tab 108 may operate as a contact point to facilitate handling of the pod 100 and/or removal of the pod 100 from product packaging.
  • the pod 100 may optionally include an external moisture barrier.
  • the moisture barrier may be a hydrophobic coating or film applied to the outer surface of the envelope 102 .
  • the moisture barrier may comprise hydrophobic esterified plant tri-glycerides, naturally occurring plant fats, or the like.
  • the moisture barrier may be configured to breakdown or dissolve in warm water.
  • FIG. 2 is a top plan view of a hygiene product pod 110 , according to various embodiments.
  • the pod 110 is similar to the pod 100 , so only the differences therebetween will be described in detail.
  • the pod 110 includes an envelope 102 in which a hygiene product 104 is disposed.
  • the envelope 102 is formed by sealing a single folded sheet of the water-soluble material around the hygiene product 104 .
  • the pod 110 includes a seal region 106 that extends along three sides of the hygiene product 104 , and a folded region 112 that extends between opposing ends of the seal region 106 .
  • FIG. 3 is a top view of a hygiene product pod 120 according to various embodiments.
  • the pod 120 is similar to the pod 100 , so only the differences therebetween will be described in detail.
  • the pod 120 includes an envelope 102 in which a hygiene product 104 is disposed.
  • the envelope 102 is formed by sealing opposing ends of a tubular sheet of the water-soluble material in which the hygiene product 104 is disposed.
  • the pod 120 includes seal regions 106 disposed at opposing ends of the pod 120 .
  • the hygiene product may be in the form of a shampoo, a conditioner, a bodywash, or any combination thereof, such as a combined shampoo, bodywash, and/or conditioner within a carrier that features butylene glycol in an amount ranging from about 25 wt % to about 75 wt %, such as from about 40 wt % to about 70 wt %, based on the total weigh of hygiene product.
  • the hygiene product may include a carrier comprising butylene glycol in amounts ranging from about 30 wt % to about 70 wt %, from about 35 wt % to about 65 wt %, from about 40 wt % to about 60 wt %, or from about 50 wt % to about 70 wt % based on the total weight of the hygiene product.
  • the hygiene product may be in liquid or gel form.
  • the hygiene product may be in the form of a shaving product, such as a shaving gel, cream, liquid, or the like, also within a carrier that features butylene glycol in an amount as described above, such as an amount ranging from about 25 wt % to about 75 wt %, or from about 40 wt % to about 70 wt %, based on the total weigh of hygiene product.
  • the hygiene product may include an active agent and a carrier (e.g., a surfactant vehicle or filler) including butylene glycol in an amount ranging from about 25 wt % to about 75 wt %, such as from about 40 wt % to about 70 wt %, based on the total weigh of hygiene product.
  • the active agent may be dispersed in the carrier.
  • the hygiene product may optionally include one or more thickeners (e.g., gellants), and/or one or more secondary ingredients.
  • the water content of the hygiene product may be controlled to prevent dissolution of the envelope.
  • the hygiene product may have a free water content of about 20 wt % or less, such as 15% or less, 10% or less, or 5% or less, based on the total weight of the hygiene product.
  • the hygiene product may have a free water content ranging from about 1% to about 12%, such as from about 2% to about 10%, based on the total weight of the hygiene product.
  • the secondary ingredients may be configured to reduce the water activity (aW) of the hygiene product.
  • the active agent may include a surfactant and/or a surfactant system comprising a mixture of surfactants, one or more cleansing agents, and/or one or more conditioning agents.
  • the conditioning agents may be configured to counteract the inherent harshness of the surfactants.
  • the conditioning agents, carrier, thickeners (e.g., gellants), and/or secondary ingredients may be configured to increase the integrity of a pod and/or may operate to disperse the active agent when the pod is dissolved in water.
  • the active agent may be formulated as a shampoo, a bodywash, a conditioner, or any combinations thereof (e.g., formulated as a 2 in 1 shampoo and conditioner or a 3 in 1 shampoo, conditioner, and bodywash).
  • the active agent may be formulated as a shaving product. Accordingly, as used herein, the “active agent” may refer to any of the above formulations.
  • the active agent may be in the form of a concentrate, such as shampoo concentrate, a conditioner concentrate, a bodywash concentrate, or any combinations thereof.
  • the active agent may be in the form of a shaving product concentrate in other embodiments.
  • the active agent may include one or more of the above components in a powdered format.
  • the active agent may include anionic, nonionic, and/or amphoteric surfactants, or any combinations thereof.
  • suitable anionic surfactants include alkali metal sulforicinates, sulfonated glyceryl esters of fatty acids, such as sulfonated monoglycerides of coconut oil acids, salts of sulfonated monovalent alcohol esters such as sodium oleylisethianate, metal soaps of fatty acids, amides of amino sulfonic acids such as the sodium salt of oleyl methyl tauride, sulfonated products of fatty acids nitriles, such as palmitonitrile sulfonate, sulfonated aromatic hydrocarbons such as sodium alpha-naphthalene monosulfonate, condensation products of naphthalene sulfonic acids with formaldehyde, sodium octahydroanthracene sulfonate,
  • Non-limiting examples of suitable cationic surfactants include various fatty acid amines and amides and their derivatives, and the salts of the fatty acid amines and amides.
  • aliphatic fatty acid amines include dodecylamine acetate, octadecylamine acetate, and acetates of the amines of tallow fatty acids, homologues of aromatic amines having fatty acids such as dodecylanalin, fatty amides derived from aliphatic diamines such as undecylimidazoline, fatty amides derived from aliphatic diamines, such as undecylimidazoline, fatty amides derived from disubstituted amines such as oleylaminodiethylamine, derivatives of ethylene diamine, quaternary ammonium compounds and their salts which are exemplified by tallow trimethyl ammonium chloride, dioctadecy
  • Non-limiting examples of suitable cationic surfactants include also quaternary ammonium halides such as octyl trimethyl ammonium chloride, dodecyl trimethyl ammonium chloride, hexadecyl trimethyl ammonium chloride, octyl dimethyl benzyl ammonium chloride, decyl dimethyl benzyl ammonium chloride and coco trimethyl ammonium chloride as well as other salts of these materials, fatty amines and basic pyridinium compounds, quaternary ammonium bases of benzimidazolines, polypropanolpolyethanol amines, polyethoxylated quaternary ammonium salts and ethylene oxide condensation products of the primary fatty amines, available from Armak Company, Chicago, Ill. under the tradenames Ethoquad, Ethomeen, or Arquad.
  • Suitable cationic surfactants can also be an esterquat type compound.
  • Non-limiting examples of suitable nonionic surfactants include capryloyl/caproyl methyl glucamide and lauroyl/myristoyl methyl glucamide, lauryldimethylamine oxide (e.g., lauramine oxide), decyl glucosides, polyoxyethylene alkyl ethers, polyoxyethylene alkylphenol ethers, polyoxyethylene lauryl ethers, polyoxyethylene sorbitan monoleates, polyoxyethylene alkyl esters, polyoxyethylene sorbitan alkyl esters.
  • lauryldimethylamine oxide e.g., lauramine oxide
  • decyl glucosides e.g., lauramine oxide
  • decyl glucosides e.g., lauramine oxide
  • polyoxyethylene alkyl ethers polyoxyethylene alkylphenol ethers
  • polyoxyethylene lauryl ethers polyoxyethylene sorbitan monoleates
  • polyoxyethylene alkyl esters polyoxy
  • Suitable nonionic surfactants include condensates of ethylene oxide with a long chain (fatty) alcohol or (fatty) acid, condensates of ethylene oxide with an amine or an amide, condensation products of ethylene and propylene oxides, fatty acid alkylol amide and fatty amine oxides.
  • non-ionic surfactants include polyoxyalkylene alkyl ethers such as polyethylene glycol long chain (12-14C) alkyl ether, polyoxyalkylene sorbitan ethers, polyoxyalkylene alkoxylate esters, polyoxyalkylene alkylphenol ethers, ethylene glycol propylene glycol copolymers, polyvinyl alcohol, and alkylpolysaccharides.
  • Non-limiting examples of suitable amphoteric surfactants include aliphatic secondary or tertiary amine derivatives in which the aliphatic radical is a linear or branched chain containing 8 to 22 carbon atoms and containing-at least one water-soluble anionic group (for example carboxylate, sulphonate, sulphate, phosphate or phosphonate); mention may also be made of (C 8 -C 20 )alkyl-betaines, sulphobetaines, (C 8 -C 20 )alkylamido(C 1 -C 6 )alkyl-betaines, or (C 8 -C 20 )alkylamido(C 1 -C 6 )alkylsulphobetaines.
  • bocamidopropyl betaine may be included in the hygiene product as an amphoteric surfactant.
  • environmentally friendly surfactants may be used, such as sulfate-free surfactants, such as sodium lauryl sulfoacetate, alpha olefin sulfonate, or the like, or combinations thereof.
  • surfactants and/or cleansing agents derived from natural oils such as coconut oil, safflower oil, or the like
  • the hygiene product may include a surfactant system comprising a mixture of naturally derived surfactants and/or cleansing agents, such as sodium cocoyl isethionate (Hostapon SCI-85 C, manufactured by Clariant Corp.), cocamidopropyl betaine (Chembetaine C-42, manufactured by Lubrizol Corp.), capryloyl/caproyl methyl glucamide and lauroyl/myristoyl methyl glucamide (GlucoTain Plus, manufactured by Clariant Corp.), cocamidopropyl PG-dimonium chloride phosphate (Cola Lipid C, manufactured by Colonial Chemical Inc.), linoleamidopropyl PG-dimonium chloride phosphate (Cola Lipid SAFL, manufactured by Colonial Chemical Inc.), lauramine oxide (Mackamine LO,
  • sodium cocoyl isethionate
  • the hygiene product may include, based on the total weight of the hygiene product, from about 20 wt % to about 60 wt %, such as from about 30 wt % to about 50 wt %, from about 35 wt % to about 45 wt %, or about 40 wt % of the surfactant system.
  • the surfactant system may include, based on the total weight of the hygiene product, from about 0 wt % to about 40 wt %, such as from about 10 wt % to about 30 wt %, from about 15 wt % to about 27 wt %, from about 18 wt % to about 25 wt %, or from about 20 wt % to about 23 wt % sodium cocoyl isethionate.
  • the surfactant system may include, based on the total weight of the hygiene product, from about 0 wt % to about 20 wt %, such as from about 1 wt % to about 10 wt %, from about 2 wt % to about 8 wt %, from about 3 wt % to about 7 wt %, or from about 4 wt % to about 6 wt % cocamidopropyl betaine.
  • the surfactant system may include, based on the total weight of the hygiene product, from about 0 wt % to about 20 wt %, such as from about 2 wt % to about 10 wt %, from about 3 wt % to about 9 wt %, or from about 4 wt % to about 8 wt % capryloyl/caproyl methyl glucamide and lauroyl/myristoyl methyl glucamide.
  • the surfactant system may include, based on the total weight of the hygiene product, from about 0 wt % to about 12 wt %, such as from about 0.5 wt % to about 6 wt %, from about 1 wt % to about 5 wt %, or from about 2 wt % to about 4% linoleamidopropyl PG-dimonium chloride phosphate.
  • the surfactant system may include, based on the total weight of the hygiene product, from about 0 wt % to about 12 wt %, such as from about 0.5 wt % to about 6 wt %, from about 1 wt % to about 5 wt %, or from about 2 wt % to about 4% cocamidopropyl PG-dimonium chloride phosphate.
  • the surfactant system may include, based on the total weight of the hygiene product, from about 0 wt % to about 15 wt %, such as from about 1 wt % to about 5 wt %, from about 2 wt % to about 4 wt %, or from about 3 wt % lauramine oxide.
  • the surfactant system may include capryloyl/caproyl methyl glucamide (and) lauroyl/myristoyl methyl glucamide, sodium cocoyl isothionate, cocamidopropyl betaine, and cocamidopropyl PG-dimonium chloride phosphate.
  • the active agent may include one or more conditioners.
  • suitable conditioners include petrolatum, fatty acids, esters of fatty acids, fatty alcohols, ethoxylated alcohols, polyol polyesters, glycerin, glycerin mono-esters, glycerin polyesters, epidermal and sebaceous hydrocarbons, lanolin, straight and branched hydrocarbons, silicone oil, silicone gum, vegetable oil, vegetable oil adduct, hydrogenated vegetable oils, nonionic polymers, natural waxes, synthetic waxes, polyolefinic glycols, polyolefinic monoester, polyolefinic polyesters, cholesterols, cholesterol esters, triglycerides and mixtures thereof.
  • the carrier may operate as surfactant vehicle and/or filler.
  • the carrier may be selected or configured to lower the overall reactivity of the hygiene product and the envelope.
  • the carrier may operate to control the free water percentage of the hygiene product.
  • the carrier may be a non-aqueous liquid and/or may be configured to moisten pod components.
  • the carrier may also operate as a conditioner for hair and/or skin.
  • the carrier may include an organic alcohol, such as, butanediol, propylene glycol, dipropylene glycol, N-acetyl diglycoamine, glycerin (e.g., glycerol), combinations thereof, or the like.
  • an organic alcohol such as, butanediol, propylene glycol, dipropylene glycol, N-acetyl diglycoamine, glycerin (e.g., glycerol), combinations thereof, or the like.
  • 1,3-butylene glycol e.g., butylene glycol
  • butylene glycol may be particularly useful as a carrier because butylene glycol has been found by the inventors to be compatible with a hygiene product pod envelope material and to also provide conditioning and/or product feel benefits.
  • butanediols such as 1,2-butanediol, 2,3-butanediol, and 1,4-butanediol, either alone or in combination with 1,3-butanediol.
  • the hygiene product may include butylene glycol (i.e., 1,3 butanediol) in a range, based on the total weight of the hygiene product, from about 25 wt % to about 75 wt %, such as from about 30 wt % to about 70 wt %, from about 40 wt % to about 70 wt %, from about 35 wt % to about 65 wt %, from about 45 wt % to about 70 wt %, from about 50 wt % to about 70 wt %, or from about 50 wt % to about 60 wt %.
  • the butylene glycol may be natural butylene glycol, which is derived from plant materials, such as sugar cane. Suitable natural butylene glycol is available from Genomatica Inc.
  • the hygiene product pods may include one or more thickeners which may be referred to as gellants.
  • the thickeners may include hygroscopic polymers, such as guar gum (e.g., cyamopsis tetragonoloba gum), cationic guar gum, xanthan gum, starch, pregelatinized starch, modified starches, such as hydroxypropyl starch phosphate and sodium starch glycolate, honey, polyvinyl pyrolidone (PVP), ExpertGel EG312 (poloxamer 338/PPG-12/SMDI copolymer) available from DKSH Inc., ExpertGel EG412 (poloxamer 407, PPG-12/SMDI copolymer) available from DKSH Inc, combinations thereof, or the like.
  • the thickeners may include cellulose derivatives such as carboxymethyl cellulose, cellulose gum, or tylose powder.
  • the hygiene product may include a hydroscopic polymer thickener in an amount ranging from about 0 wt % to about 0.4 wt %, such as from about 0.05 wt % to about 0.3 wt %, or from about 0.1 wt % to about 0.2 wt %, based on the total weight of the hygiene product.
  • the hygiene product may include a modified starch thickener in an amount ranging from about 0.1 wt % to about 3 wt %, such as from about 0.2 wt % to about 2 wt %, or from about 0.3 wt % to about 1 wt %, based on the total weight of the hygiene product.
  • the thickeners may include nonionic surfactants configured to form a lamellar network.
  • the thickeners may include a lamellar network formed from polyoxyethylene ethers including a mixture of high molecular mass saturated fatty alcohols, mainly cetyl alcohol and stearyl alcohol, such as ceteareth-20.
  • the hygiene product may include a nonionic surfactant in an amount ranging from about 8 wt % to about 18 wt %, such as about 12 wt %, based on the total weight of the hygiene product.
  • the envelope of the hygiene product pod may have some amount of permeability with respect to the hygiene product. This could lead to diffusion of one or more components of the hygiene product through the envelope over time, which may reduce pod shelf-life.
  • an envelope formed of PVOH could inherently have some amount permeability with respect the butylene glycol carrier.
  • the hygiene product may include thickeners configured to reduce carrier permeation through the envelope.
  • the hygiene product may be configured as a lamellar gellant system.
  • a thickener/gellant may be added to the hygiene product as a secondary ingredient.
  • a mixture including a nonionic surfactant thickener/gellant, such as a fatty alcohol, an active agent, and a carrier may be heated above the melting point of the surfactant, and then the mixture may be cooled below the melting point of the surfactant. As a result, the surfactant may form a lamellar phase within the carrier.
  • the mixture may include ceteareth-20, an active agent, and a carrier including butylene glycol.
  • the mixture may be heated to above the melting point of the ceteareth-20 and then cooled, such that the ceteareth-20 forms a lamellar gel network surrounding the butylene glycol.
  • An amount of nonionic surfactant (e.g., ceteareth-20) included in the hygiene product may range from about 8 wt % to about 18 wt %, such as about 12 wt %, based on the total weight of the hygiene product. Amounts above 18 wt % may excessively reduce foaming after hydration. Amounts of less than about 8 wt % may be insufficient to form a stable gel and reduce diffusion of the butylene glycol. Amounts within the range may provide a flowable, smooth, shampoo or bodywash hygiene product with adequate foaming, and may provide a pod having a shelf life of one year or more.
  • nonionic surfactant e.g., ceteareth-20
  • the hygiene product may include an oil phase.
  • oil may be added to an active agent/carrier mixture during or prior to heating the mixture.
  • the heated mixture may be blended to form an oil-in-polyol emulsion, followed by cooling.
  • such an emulsion may include an anhydrous conditioner concentrate as an active agent.
  • thickeners such as carboxymethyl cellulose, cellulose gum, or tylose powder may be added to the hygiene product to reduce diffusion of the butylene glycol through the envelope.
  • tylose powder may be added to the hygiene product in an amount ranging from about 0.05 wt % to about 0.5 wt %, such as from about 0.15 wt % to about 0.25 wt %, or about based on the total weight of the hygiene product.
  • the hygiene product pods may include secondary ingredients.
  • the secondary ingredients may include buffers/pH adjusters, dyes/colorants, moisturizers, fragrances, vitamins, texture modifiers, essential oils, foam enhancers, and anti-microbial agents, combinations thereof, or the like.
  • hygiene products may include from about 0 wt % to about 8 wt % secondary ingredients.
  • the buffers/pH adjusters may include calcium ions, potassium ions, or hydroxide ions, any combination thereof, or any salts or compounds capable of generation such ions.
  • the buffers/pH adjusters may be blended at various ratios, in order to provide a suitable pH.
  • a suitable amount of buffer/pH adjuster may be added to the hygiene product to provide a slightly acidic pH for compatibility with PVOH envelopes.
  • the hygiene product may advantageously have a room temperature pH ranging from about 4.8 to about 6.9, such as from about 5.0 to about 6.8.
  • the secondary ingredients may include essential oils such as lavender oil, rosemary oil, cedar wood oil, thyme oil, peppermint oil, chamomile oil, sage oil, lemon oil, patchouli oil, tea tree oil, ylang ylang oil, vetiver oil, carrot seed oil, cypress oil, helichrysum oil, combinations thereof, or the like.
  • essential oils such as lavender oil, rosemary oil, cedar wood oil, thyme oil, peppermint oil, chamomile oil, sage oil, lemon oil, patchouli oil, tea tree oil, ylang ylang oil, vetiver oil, carrot seed oil, cypress oil, helichrysum oil, combinations thereof, or the like.
  • hygiene products may include moisturizers such as betaine (Genencare OSMS BA, manufactured by Dupont Corp.)
  • hygiene products may include vitamins such as tocopherol, DL Panthenol, or combinations thereof.
  • Secondary ingredients useful for improving dissolvability and/or foaming may include coconut milk powder, arrow root powder, colloidal oatmeal powder, combinations thereof, or the like.
  • hygiene products may include a secondary ingredient, such as coconut milk powder, arrow root powder, colloidal oatmeal powder, or any combination thereof, in an amount ranging from about 0 wt % to about 22 wt %, such as from about 5 wt % to about 20 wt %, or from about 8 wt % to about 15 wt %.
  • Colloidal oatmeal powder may also operate as a texture modifier to provide a smoother texture.
  • Hygiene products may include a colorant in an amount ranging from about 0 wt % to about 0.3 wt %, such as from about 0.1 wt % to about 0.2 wt %.
  • a suitable fragrance may be used.
  • Useful fragrances may be in liquid form, such as traditional fragrances that are combinations of synthetic and natural compounds, natural fragrances that consist of a blend of natural extracts and essential oils, or essential oils in the pure and neat form.
  • Hygiene products may include a fragrance oil in an amount ranging from about 0 wt % to about 0.3 wt %, such as from about 0.1 wt % to about 0.2 wt %.
  • texture modifiers may include micro or macro abrasive agents, such as when a pod includes a body scrub.
  • Suitable abrasive agents include, for example, nut powders, silica powders, polymer beads such as wax beads, combinations thereof, or the like.
  • hygiene products may include an abrasive agent in an amount ranging from about 0 wt % to about 3 wt %, such as from about 0.1 wt % to about 2 wt %, or from about 0.2 wt % to about 1 wt %.
  • texture modifiers may include swellable, cross-linkable, hygroscopic polymers, such as guar gum (e.g., cyamopsis tetragonoloba gum), cationic guar gum, xanthan gum, or the like, or combinations thereof.
  • hygiene products may include a hygroscopic polymer in an amount ranging from about 0 wt % to about 0.4 wt %, such as from about 0.05 wt % to about 0.3 wt %, or from about 0.1 wt % to about 0.2 wt %.
  • anti-microbial agents may be natural materials having anti-microbial effects.
  • anti-microbial agents may include thyme oil, tea tree oil, oregano oil, lavender oil, citrus essential oil, grapefruit seed extract, olive leaf extract, honey, or the like.
  • Hygiene products may include an anti-microbial agent in an amount ranging from about 0 wt % to about 3 wt %, such as from about 0.1 wt % to about 2 wt %, or from about 0.2 wt % to about 1 wt %.
  • FIG. 4 is a process flow diagram illustrating a method of using a hygiene product pod according to various embodiments.
  • a pod as described above may be removed from a container or packaging and may be placed in the hand of a user.
  • the container may include multiple pods and may be configured to limit the exposure of the pods contained therein to moisture.
  • the container may be formed of water resistant paper or paperboard, such as the types of paper used for packaging soap, sugar, or flour.
  • the pods may be packaged in biodegradable or recyclable packs, for example, in blister packs, polylactic acid bags, for example. Accordingly, the pods may be packaged in a single dose format with minimal environmental impact.
  • step 404 water is applied to the pod, such as while holding the pod in one's hands.
  • friction and/or agitation may also optionally be applied to the pod.
  • the pod may remain in contact with the water in the user's hand and the optional friction may be applied, for a time period sufficient for the water to dissolve the envelope of the pod and release the hygiene product contained therein.
  • a time period for completely or substantially completely dissolving the envelope of the pod may range from about 0.5 seconds to about 1 minute, such as from about 1 second to about 30 seconds, from about 1 second to about 20 seconds, or from about 1 second to about 10 seconds.
  • the dissolution time may vary according to an amount of applied friction and/or the temperature of the applied water (e.g., increased friction and/or water temperatures may result in a reduced dissolution time).
  • the hygiene product is applied to the body of the user.
  • the hygiene product may be applied to the hair of the user, when the hygiene product is in the form of a shampoo and/or a combined shampoo, conditioner, and/or bodywash.
  • hygiene product may be applied to the body and/or hair of the user, when the hygiene product is in the form of bodywash, a combined shampoo and bodywash, and/or a combined bodywash, shampoo, and conditioner.
  • the hygiene product may be applied to areas of the user's skin where hair is intended to be removed, when the hygiene produce is in the form of a shaving product.
  • the hygiene product may be rinsed from the applied area or areas.
  • Exemplary hygiene product Compositions 1-29 are listed in the following Tables 1-7.
  • the components of each of the example compositions were mixed to form hygiene products.
  • the hygiene products were then packaged to form pods using methods as described above.
  • the pods were then inserted into water-resistant packaging.
  • Composition 1 exhibited immediate phase separation upon mixing.
  • Composition 2 formed an overly dense creamy solid.
  • Compositions 3 and 4 were prepared to test the substitution of replacement of Hostapon SCI- 85 P with Cola Det. EQ-154.
  • Compositions 3 and 4 both exhibited phase separation.
  • Composition 5 was a variation of Composition 2, which substituted Cola Lipid SAFL for Cola Lipid C.
  • Composition 5 was dense and creamy and exhibited slight phase separation in air bubbles and crevices of retain.
  • Compositions 6-13 included conditioning agents and essential oils, as well as additional ingredients, to produce stable, dense hygiene products.
  • Merquat 3330 PR was initially mixed with butylene glycol and quickly polymerized to form a globule that would not associate with the remaining components.
  • Composition 7 exhibited phase separation at the bottom of the sample.
  • Composition 8 included an additional foam booster and water in an attempt to partially hydrate the Hostapon SCI-85 P.
  • Composition 8 formed a thick paste.
  • Composition 9 formed a softer, creamier hygiene product than previous compositions.
  • Composition 10 formed a relatively soft and creamy hygiene product paste, but was not flowable and exhibited some phase separation.
  • Composition 11 formed a relatively soft and creamy paste that was not flowable.
  • Composition 12 formed a spongy solid.
  • Composition 13 was spreadable and soft and exhibited high stability.
  • Composition 14 tested the inclusion of arnica extract and Poly Sugamulse as an emulsifier, which resulted in a granular paste.
  • Composition 15 was similar to Composition 5, but included an increased liquid to surfactant ratio.
  • compositions 16-22 were formulated to provide lower viscosity hygiene products.
  • Compositions 16 and 17 were warmed during mixing to facilitate dissolution of the Genencare and Panthenol conditioners.
  • Composition 18 exhibited relatively lower viscosity but also exhibited slight phase separation after 48 hours.
  • Composition 19 had even lower viscosity but also exhibited increased phase separation.
  • Composition 20 was formulated to correct the deficiencies of Composition 19, but resulted in a hygiene product that was overly viscus (hard).
  • Composition 21 was similar to Composition 20, except for substituting Genencar for Panthenol, resulting in improved flowability, stability, and texture.
  • Composition 22 included both butylene glycol and ethylene glycol, resulting in a composition that dissolved a PVOH envelope when inserted therein.
  • compositions 23-26 were formulated to reduce diffusion of the butylene glycol through the PVOH envelope.
  • Compositions 23-26 were formed by dissolving Ceteareth-20 in butylene glycol, while heating above the melting point of Ceteareth-20. The mixtures were cooled to form a lamellar network surrounding the butylene glycol, SCI was added, and then the remaining components were added to form hygiene products.
  • Composition 23 exhibited moderate gelation and no syneresis.
  • Composition 24 exhibited stable gelation, but poor performance due to excessive Ceteareth-20 emulsification.
  • Composition 25 exhibited moderate gelation, but exhibited phase separation of SCI powder at the bottom of the sample.
  • Composition 26 exhibited improved gelation compared to Composition 25, but also exhibited phase separation of SCI powder.
  • compositions 27-29 utilized Tylose powder as a gellant to prevent butylene glycol diffusion.
  • Compositions 27-29 were formed by dissolving Tylose in butylene glycol, while heating at about 60° C. The mixtures were cooled and the remaining components were then added.
  • Composition 27 exhibited good stability, but was overly viscus and included undispersed Tylose powder.
  • Composition 28 exhibited good stability, reduced viscosity, as compared to Composition 27.
  • Composition 29 produced a free-flowing gel having good stability and viscosity.
  • Compositions 27-29 were all highly compatible with PVOH envelopes.

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  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Dermatology (AREA)
  • Emergency Medicine (AREA)
  • Cosmetics (AREA)
  • Detergent Compositions (AREA)
  • Medicinal Preparation (AREA)
  • Wrappers (AREA)
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US15/986,592 US20190216697A1 (en) 2018-01-18 2018-05-22 Hygiene product pod and methods of using same
US16/149,483 US20190216698A1 (en) 2018-01-18 2018-10-02 Hygiene product pod and methods of using same
US16/149,543 US11744786B2 (en) 2018-01-18 2018-10-02 Hygiene product pod and methods of using same
MX2020007356A MX2020007356A (es) 2018-01-18 2019-01-17 Capsula de producto de higiene y sus metodos de uso.
CN201980008263.8A CN112236124A (zh) 2018-01-18 2019-01-17 卫生产品套袋以及使用它们的方法
CA3087970A CA3087970C (en) 2018-01-18 2019-01-17 Hygiene product pod and methods of using same
JP2020539071A JP2021510712A (ja) 2018-01-18 2019-01-17 衛生用品ポッド及びその使用法
PCT/US2019/014000 WO2019143809A1 (en) 2018-01-18 2019-01-17 Hygiene product pod and methods of using same
EP19740951.9A EP3740186A4 (de) 2018-01-18 2019-01-17 Behälter für hygieneprodukt und verfahren zu dessen verwendung
IL276098A IL276098B2 (en) 2018-01-18 2019-01-17 Hygiene product and methods for using it
AU2019209854A AU2019209854B2 (en) 2018-01-18 2019-01-17 Hygiene product pod and methods of using same
US18/211,834 US12558299B2 (en) 2018-01-18 2023-06-20 Hygiene product pod and methods of using same
JP2024103420A JP2024129073A (ja) 2018-01-18 2024-06-26 使い捨て衛生用品ポッド

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US18/211,834 Active 2039-04-29 US12558299B2 (en) 2018-01-18 2023-06-20 Hygiene product pod and methods of using same

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US11744786B2 (en) 2023-09-05
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US12558299B2 (en) 2026-02-24
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US20230404878A1 (en) 2023-12-21
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