We set a simple goal: to answer most of the questions that you have for free, in a reliable and simple language.
Main page
Units storage compositions and Fragrances

Units storage compositions and Fragrances

Our work is multi-dimensional and complex; a meeting of science and art, creativity and data. Here you will find frequently asked questions to help you understand our world of fragrance. From technical terms to why we like what we like, the olfcative memory to practical tips on storing and wearing fragrance contact us if you have any lingering unanswered questions. You may feel that there can be no logic in your choice of perfumes because your sense of smell is so emotional, but the fragrances you most enjoy will probably belong to just one or two of the fourteen different fragrance families. Like most good things, it takes a little effort to find a new perfume that is just right.

VIDEO ON THE TOPIC: 💰💵Top Best 50 Fragrances for $50 and under / Top 50 Lists

Dear readers! Our articles talk about typical ways to resolve Units storage compositions and Fragrances, but each case is unique.

If you want to know, how to solve your particular problem - contact the online consultant form on the right or call the numbers on the website. It is fast and free!


Fragrance Q&A with Michael Edwards

The present invention relates to ethanol-free perfumed compositions suitable for leave-on cosmetics, said compositions being clear, transparent and stable during storage. The invention is also directed to ethanol-free perfumed products obtainable by dilution in water of ethanol-free perfume preparations. Historically, perfumes have been prepared by dissolving fragrance oils in volatile alcohols, primarily ethanol, or in a mixture of ethanol and water. The industrialization of surfactants and the advances in colloid science have made possible the solubilization of fragrances in water by means of emulsification with surfactants.

When an emulsion has a particle size of about nm or less it is referred to as a microemulsion. The small size of these microemulsions containing fragrance oils results in perfume products that are clear or almost clear, and are not very different in appearance to conventional ethanol-based perfumes.

Microemulsions contain physical structures which can be described as swollen micelles, inversed micelles or continuous bi-layers.

None of these structures are present in conventional ethanol-based perfume products. Another benefit is the immediate perception of the intrinsic nature of the fragrance oils due to the absence of ethanol or ethanol-like alcohols.

However, microemulsion water-based products tend to be foamy, sticky or even irritating to the skin due to presence of the surfactants required to solubilize the fragrance.

These drawbacks are magnified as the surfactant content increases. This content depends on the intrinsic efficiency of the selected surfactant system, the ease or difficulty of solubilization of the fragrance oil itself, and the total content of the fragrance oil in the final perfume product. In any case, T. Lin mentioned in Surfactants in Cosmetics, Surfactants Sci. There is therefore a need to make the microemulsions with low concentrations of skin compatible surfactants.

The surfactant system consists of a non-ionic fraction and an anionic fraction, which are also representative of other disclosures in the art, such as in U. The non-ionic fraction in these documents is based on ethoxylated surfactants that are known for their excellent fragrance solubilization properties. Both patents disclose a long list of ethoxylated compounds. However, ethoxylated surfactants with molecular weights in the to range and based on fatty acids, fatty alcohols, and even the alkyl phenol as disclosed in U.

While acceptable for usage in many consumer and industrial products, where they may have functions in addition to fragrance solubilization, these surfactants are not very suited for perfume products for application to the skin or hair. Ethoxylated non-ionic surfactants with high molecular weight, such as the ethoxylated castor oil materials disclosed in U.

The anionic surfactants disclosed in these patents are also known for their use in many personal cleansing products, household products, laundry products and detergent products in general. They are known to negatively interact with the corneocites of the skin to cause irritation, especially when left deposited on the skin, as it is the case of perfumery products intended for personal use.

Anionic surfactants are required in microemulsion-based fragrance products to offset the negative impact that the fragrance has on the cloud point of ethoxylated non-ionic surfactants. Non-ionic ethoxylates exhibit inverse water solubility behavior since they are less soluble as the temperature of the solution is raised. The temperature at which they are no longer soluble in water is called the cloud point.

The present invention provides an unexpected and advantageous solution to all these requirements with the incorporation of skin compatible crypto-anionic surfactants that totally replace the anionic materials described as indispensable in the prior art. The present invention relates to ethanol-free perfumed compositions containing water in replacement for ethanol, comprising a combination of two types of surfactants, namely ethoxylated crypto-anionic surfactants and ethoxylated non-ionic surfactants, and glycol s.

The specific amount of each component is adjusted in the microemulsion to accommodate the solubilization of the fragrances used in perfumed composition, which are very complex and diverse in composition. In this respect, the present invention pertains to an ethanol-free perfumed composition comprising a fragrance and:.

The present invention is also directed to a perfumed composition obtainable by admixing in situ: an ethanol-free perfumed preparation comprising a fragrance and:.

The invention is also directed to an ethanol-free perfume product in a kit form comprising two compartments in which at least the following ingredients are divided:. It is indeed of the merit of the inventors to have discovered that the combination of specific crypto-anionic surfactants with specific non-ionic surfactants comprising oxyalkylene units made it possible to provide clear, transparent and storage stable ethanol-free perfume compositions that are perfectly non-irritant to the skin.

The perfumed compositions of the present invention can preferably be in the form of a microemulsion. True solutions show none of these microstructural characteristics. As mentioned above, the perfumed compositions of the present invention comprises at least one fragrance.

The term fragrance is taken to mean any individual material which may be an ingredient of a fragrance composition even though that perfume ingredient may itself comprise many individual chemical compounds. In a general manner these ingredients belong to chemical classes as varied as terpene hydrocarbons, acetates, alcohols, aldehydes, ketones, esters, ethers, nitriles, nitrogenous or sulfurous heterocyclic compounds and essential oils of natural or synthetic origin.

A more detailed description is not warranted here since skilled persons are familiar with the ingredients and able to select them according to the nature of the product to be perfumed and the desired olfactory effect.

Low log Pow values indicate more water soluble molecules while higher log Pow values are indicate a more hydrophobic compound. However, the log Pow characterizes fragrances in a chemical environment free of surfactants. When surfactants are present, the log Pow may only provide a partial description of the fragrance intrinsic solubility that is now governed by the incorporation of the fragrance ingredients into the various sites of the surfactant micelles.

Solvents are defined as relatively low odor liquids which can dissolve target material in reasonable proportions. Some of the common solvents used in perfumery such as propylene glycol and dipropylene glycol are water miscible; as such they may assist in dissolving a fragrance into a clear aqueous solution or microemulsion.

For the purposes of this specification, proportions of fragrances are quoted excluding any water miscible solvent which may be present.

The ethanol-free perfumed composition of the invention also comprises at least one crypto-anionic surfactant. Crypto-anionic surfactants are defined, within the meaning of the invention, as surfactants that behave like non-ionic or anionic depending on the pH conditions. This description is consistent with U. Generally speaking, crypto-anionic surfactants are mainly in a non-ionic state when the pH of the medium is below 3. As the pH of the medium increases, the surfactant becomes more anionic.

Generally speaking also, within the pH range of the medium required for perfumed compositions, crypto-anionic surfactants contain a mixture of non-ionic and anionic species.

Also, and unlike conventional anionic surfactants, crypto-anioinic surfactants are compatible with cationic surfactants in a broad pH range. In a preferred embodiment, the crypto anionic surfactant is flanked by a citrate or phosphate group or a mixture of them.

The preferred crypto-anionics in this invention correspond to the families of citrate esters and organophosphates, also known as phosphate esters, and are made by partial esterification of a non-ionic ethoxylated material with an esterifying agent. The hydrophobe part of the non-ionic ethoxylated material can be a linear alkyl chain, or a branched alkyl chain, or an unsaturated alkyl chain, or an aryl chain, or a polymerized propylene oxide chain.

The esterification of the non-ionic ethoxylated material can be conducted with citric acid to form the citrates esters or with polyphosphoric acid, phosphorous pentoxide or phosphorous oxychloride to form the phosphate esters. In a preferred embodiment, the crypto anionic surfactant is an ester having at least one non esterified acid group.

A partial esterification is conducted to prevent the formation of triester and obtain variable mixtures of monoester and diester compounds and to have at least one unreacted acid group available for further neutralization with an inorganic or organic base. Triesters are undesirable due to poor water solubility and because they prevent the presence of the necessary unreacted acid group.

The unreacted acid group is finally neutralized, totally or partially, with alkaline materials like sodium and potassium hydroxides or with typical organic bases, mainly amines. The neutralization can be measured by pH and adjusted as required, normally in the range 4.

This neutralization with a base changes the nature of the surfactant from a mainly non-ionic to a more anionic state.

In a preferred embodiment, the crypto anionic surfactant is chosen from: the citrate ester of laureth-7, and the phosphate ester of PPG-5 Ceteth In one embodiment, the perfumed, aqueous compositions of the invention contain from 0. They are manufactured, among others, by Croda under the trade name Croduret.

The preferred surfactants are liquid or very soft solids that dissolve easily with the fragrance oil or the glycol phase with no significant heat applied.

They consist of a central hydrophobic block made of polymerized propylene oxide PO flanked by two blocks of polymerized ethylene oxide EO to improve water solubility.

The ethanol-free perfumed composition of the invention also comprises at least one glycol having from 3 to 8 carbon atoms, preferably 5 to 6 carbon atoms.

The glycol or glycol s of the invention are preferably aliphatic diols with vicinal or non vicinal hydroxyl groups. Suitable glycols with vicinal diols having 3 to 8 carbon atoms include 1,2-pentanediol, 1,2-hexanediol, 1,2-heptanediol or 1,2-octanediol. Suitable glycols with non vicinal diols having 4 to 8 carbon atoms include butylene glycol, pentylene glycol, isopentyl glycol, hexylene glycol, dipropylene glycol which is a mixture of three isomers, 4-oxa-2,6-heptandiol, 2- 2-hydroxy-propoxy -propanol, and 2- 2-hydroxymethyl-ethoxy -propanol or octylene glycol.

In a preferred embodiment, glycol having from 3 to 8 carbon atoms can be chosen from pentylene glycol, isopentyldiol; 1,2-hexanediol; hexylene glycol and dipropylene glycol or a mixture thereof.

The water added for the preparation of a perfumed composition can also contain additional ingredients as described below. The water phase is the preferred phase to incorporate the organic or inorganic base required to raise the pH of the final emulsion product. Other ingredients that may optionally be present in the compositions of the present invention include for example antioxidants, chelating agents, UV filters, active ingredients, moisturizers, humectants, emollients, colorants, dyes, antifoams and pH adjusting or buffering agents.

These ingredients may be added at such point in the process as will be understood by skilled practitioners or as can be determined by a few simple experiments.

The amount of optional ingredients will vary depending on the purpose and effectiveness of the ingredient. Typically, such ingredients represent from 0. The perfumed compositions according to the present invention may be prepared by any method known in the art, for example, by simple mixing at room temperature all the ingredients, for example by hand stirring or if need be, by mechanically mixing the components of the perfumed composition, and any optional components, to form a homogeneous mixture.

In one embodiment, the surfactants are added to the solvents diols with warming if necessary, and the mixture is stirred.

Then the fragrances are added with stirring. The water phase is then added slowly to the organic phase with constant gentle stirring. The pH is adjusted normally in the range 4. The preferred method consists in mixing at room temperature into a single phase the glycol s , surfactants and fragrance oil, followed by the addition of water under agitation. High shear forces or other mechanical forces are not necessary to manufacture the present microemulsions. The preservative system and additives can be added to either the water or the oil phase or both based on their solubility.

Finally, the pH is adjusted with an inorganic or organic base. A portion or the total amount of the base can be pre-added to the water phase. The ease of incorporation of the water phase makes it possible to market the invention in a kit form with instructions for the consumer prior to use.

The kit would be made of an anhydrous system containing the fragrance and some or all of the ingredients of the solubilizer system, and a separated aqueous system containing the water and the rest of the ingredients.

Such systems are also embodiments of the present invention, as they constitute starting material ingredients for the preparation of the compositions and microemulsions described in this specification. In this respect, the present invention is also directed to an ethanol-free perfume product in a kit form comprising two compartments in which at least the following ingredients are divided:. The invention is also directed to an ethanol-free perfumed preparation, for example to be introduced in one compartment of said kit, comprising a fragrance and:.

A perfumed composition is thus obtainable by admixing in situ said ethanol-free perfumed preparation, and water. Table 1 shows the composition of a fragrance oil made of seven ingredients selected to represent various chemical families commonly used to prepare fragrances. Its main purpose is to show the effectiveness of the solubilizer system. It is not intended for olfactory attributes. Table 2 shows the composition of a fragrance oil made of fifteen ingredients selected to deliver, at a low concentration usage in the final water based perfume product, and a longevity of at least 8 hours.

The fragrance is described having fruity freshness with notes of jasmine, violet and carnation.

Perfume compositions

Floressence deploys its expertise based on 3 fundamental points: knowledge, creativity and reliability — with expertise and know-how in the art of fragrance compounds recognized for over 30 years, thanks to a talented team of fragrance creators and a proactive evaluation and marketing unit, the whole guaranteeing constant quality and a responsiveness suited to the needs of each customer. Always attentive to the customer, our specialists set up, with him, a real olfactory strategy based on high quality raw materials, on formulation technicity and the scrupulous respect of current regulations. Thanks to our high-tech equipment, we can create and develop fragrance solutions tailored to our customers, in volumes ranging from kilograms to several tons. Our laboratories and production facilities are all equipped with state-of-the-art machinery and incorporate state-of-the-art technologies.

Founders Ezra Wood and Alia Raza describe themselves as fragrance nerds. The collection draws on nature and culture, melding the rich source that is history and art with the wealth of the plant world.

The present invention relates to ethanol-free perfumed compositions suitable for leave-on cosmetics, said compositions being clear, transparent and stable during storage. The invention is also directed to ethanol-free perfumed products obtainable by dilution in water of ethanol-free perfume preparations. Historically, perfumes have been prepared by dissolving fragrance oils in volatile alcohols, primarily ethanol, or in a mixture of ethanol and water. The industrialization of surfactants and the advances in colloid science have made possible the solubilization of fragrances in water by means of emulsification with surfactants.

Fragrance emitting compositions and products

Compositions and products for emitting fragrance include at least one fragrance, perlite, and sodium silicate or water glass. Compositions used to make urinal blocks and other products may further include at least one of: lime calcium oxide , gypsum, enzymes and colorant agents. Chlorophyl and alfalfa may also be included, as well as calcium chloride, sodium chloride, potassium chloride, bicarbonate of soda, sodium sulfate, sodium talloate, nonionic surfactants, ethyl alcohol, hexylene glycol 1-hexene ethylene glycol, propylene glycol and isopropyl alcohol. The present application relates to fragrance emitting compositions and materials made therefrom, and in particular to fragrance emitting urinal blocks and air fresheners. Fragrance emitting products in the form of solid or semi-solid blocks, that include one or more fragrances for providing a fresh or deodorizing impression, have long been available for a variety of commercial and home applications. These applications include, for example, blocks or cakes for use in urinals, lavatories, basements closets, pet areas, lockers, storage areas and garbage cans; air freshener units equipped with small fans and refillable scented blocks; and scented urinal screen and block combinations. For the last several decades, such fragrance emitting products have often included 1,4-dichlorobenzene para-dichlorobenzene , also known as p-DCB, paramoth, para crystals and paracide, reflecting the use of this chemical to control moths, molds and mildew. Para-dichlorobenzene is a colorless or white crystalline solid at ambient temperature and pressure and emits an aromatic, camphor-like odor. When exposed to air, para-dichlorobenzene slowly sublimates from a solid to vapor and does not dissolve easily in water, making this chemical an efficient air deodorizer and thus a highly desirable component in air fresheners, toilet and urinal blocks. However, although there is no current evidence that moderate use of para-dichlorobenzene is harmful to human health, harmful effects have occurred from high exposures.

EP2263700A1 - Aromatic agent composition for openable storage space - Google Patents

The present invention is concerned with fragrance compositions useful in automatic dishwasher applications, and to dishwasher detergent compositions containing said fragrance compositions. Many households have a dishwasher, and although dishwashers perform the work of washing the dishes often perceived by consumers as time-consuming and unpleasant work by hand, dishwashing using a dishwasher still has its disadvantages. Many consumers complain that the dishwashing process results in unpleasant smells, which escape once the dishwasher is opened after a dishwashing process. The presence of perfume provides an aesthetic benefit to the consumer upon use of a dishwasher, and generally serves as a signal of freshness and cleanliness. As a result there is a demand among consumers to pleasantly scent the air escaping from dishwashers.

Nemat Perfume Oil.

Have you ever wondered what is the difference between original branded perfumes and their testers? As the topic is quite extensive, we decided to answer as precisely and specifically this question without having to search for information from a bunch of different sources. That is exactly what we will answer in the following lines. There are so many opinions and theories on the subject that if we go to enumerate each of them, we will be able to publish a whole book.

Perfume testers vs. official brand perfumes

Ancient texts and archaeological excavations show the use of perfumes in some of the earliest human civilizations. Modern perfumery began in the late 19th century with the commercial synthesis of aroma compounds such as vanillin or coumarin , which allowed for the composition of perfumes with smells previously unattainable solely from natural aromatics alone. The word perfume derives from the Latin perfumare , meaning "to smoke through".

This invention relates to an aqueous composition of a fragrance. More particularly, the invention relates to an aqueous composition of a fragrance suitable for use in an air freshener device for dispensing fragrance into the surrounding environment and which composition contains 3-methylmethoxy butanol. The invention also relates to an air fragrance dispensing device of the wick type using such aqueous composition in which the evaporation rate of the fragrance is controlled to dispense the fragrance into the surrounding environment over extended periods of time, as well as into small or large areas. Conventional wick type air fresheners for dispensing air freshening fragrances from aqueous compositions include three essential components: 1 a reservoir containing the aqueous air freshening fragrance composition; 2 a diffuser or emanating surface from which the fragrance can evaporate into the surrounding environment; and 3 a wick which draws the fragrance composition via capillary action from the reservoir to the diffuser. As described in U.

Я думаю, он был введен в заблуждение. Бринкерхофф молчал. Мидж Милкен явно чего-то не поняла. - Это многое объясняет, - настаивала.  - Например, почему он провел там всю ночь.

From technical terms to why we like what we like, the olfcative memory to practical tips on storing and wearing fragrance contact us if you have any lingering  Missing: Units.

Она подняла голову. - Не поддающийся взлому алгоритм? - Она выдержала паузу.  - Ах да… Я, кажется, что-то такое читала. - Не очень правдоподобное заявление. - Согласна, - сказала Сьюзан, удивившись, почему вдруг Хейл заговорил об .

- Qu'est-ce-que vous voulez. Ясно, подумал Беккер с улыбкой. Канадский француз.

Послышались гудки. Беккер разглядывал зал. Один гудок… два… три… Внезапно он увидел нечто, заставившее его бросить трубку.

Она нахмурилась.

Камера снова показала Танкадо, его руку, упавшую на бездыханную грудь. Кольца на пальце уже не. ГЛАВА 118 - Это может служить доказательством, - решительно заявил Фонтейн.  - Танкадо избавился от кольца. Он хотел, чтобы оно оказалось как можно дальше от него - чтобы мы его никогда не нашли.

Когда распался последний силиконовый чип, громадная раскаленная лава вырвалась наружу, пробив верхнюю крышку и выбросив на двадцать метров вверх тучу керамических осколков, и в то же мгновение насыщенный кислородом воздух шифровалки втянуло в образовавшийся вакуум.

Сьюзан едва успела взбежать на верхнюю площадку лестницы и вцепиться в перила, когда ее ударил мощный порыв горячего ветра. Повернувшись, она увидела заместителя оперативного директора АНБ; он стоял возле ТРАНСТЕКСТА, не сводя с нее глаз. Вокруг него бушевала настоящая буря, но в его глазах она увидела смирение. Губы Стратмора приоткрылись, произнеся последнее в его жизни слово: Сьюзан.

Если потребуется, заплатите за это кольцо хоть десять тысяч долларов. Я верну вам деньги, - сказал ему Стратмор. В этом нет необходимости, - ответил на это Беккер. Он так или иначе собирался вернуть деньги.

Comments 4
Thanks! Your comment will appear after verification.
Add a comment

  1. Shashicage

    I apologise, but, in my opinion, you are not right. I am assured. I can prove it. Write to me in PM, we will communicate.