Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/221—Mono, di- or trisaccharides or derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0047—Detergents in the form of bars or tablets
  • C11D17/0065—Solid detergents containing builders
  • C11D17/0073—Tablets
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/0052—Gas evolving or heat producing compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/10—Carbonates ; Bicarbonates
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2075—Carboxylic acids-salts thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/50—Perfumes

Definitions

• the present invention relates to tablets as carriers for fragrances, and to a method for producing such tablets.
• the capsules contain the fragrance in liquid form together with an emulsifier, while the tablets, in addition to the fragrance, must also contain filler and carrier, for example sodium aluminum silicate or cyclodextrin. Further details on the manufacture and composition of suitable tablets are not contained in this publication.
• the invention relates to a fragrance-containing tablet, which is characterized by a content of sorbitol as carrier material and a content of a gas-developing system of carbonate and / or bicarbonate and an acid.
• the gas evolving system preferably consists of the combination of sodium hydrogen carbonate and citric acid.
• the tablets according to the invention can be produced with an exceptionally high proportion of fragrances, without liquid escaping when the tablets are pressed or the tablets becoming sticky.
• the tablets are unbreakable and abrasion-resistant and not very sensitive to air humidity. In contrast, the tablets completely dissolve in cold water within a few minutes and do not leave any visible residues on the treated textiles when used in a washing or rinsing solution.
• the fragrances contained in the tablets according to the invention are predominantly perfume oils which are composed of several chemical compounds. According to the invention these individual compounds can be selected from a wide variety of chemical classes, since the solid additives used according to the invention are largely chemically inert to almost all such compounds. On the other hand, the composition of the perfume oils has practically no influence on the properties of the tablet according to the invention. Perfume oils which have a certain substantivity towards the fiber materials they contain are preferably used for scenting textiles.
• the content of fragrances in the tablets can be varied within wide limits and thus adapted to the need and the possible tablet size.
• the fragrance content in the tablets is preferably between about 3 and about 15% by weight, in particular between about 5 and about 10% by weight.
• the sorbitol used as a carrier substance according to the invention is used to produce the tablets in finely divided, preferably absorbent form.
• the average particle size of the sorbitol is preferably between approximately 200 and 800 ⁇ m.
• the tablets preferably contain between about 15 and 40% by weight, in particular between 20 and 35% by weight, of sorbitol.
• the gas-developing system contained in the tablets is a combination of at least one solid acid and a water-soluble carbonate.
• Carboxylic acids for example tartaric acid, citric acid or glycolic acid, are preferably used as solid acids, but if acid-stable fragrances are used, it is also possible to use stronger acids, for example ammidosulfonic acid or sodium hydrogen sulfate.
• the soluble carbonates used are primarily alkali carbonates, and here in turn preferably the sodium carbonates, in particular sodium bicarbonate.
• the ratio of acid to carbonate is preferably chosen so that at least the amount of acid necessary for the complete release of the carbon dioxide is present in the tablet. Acid and carbonate are preferably used in very finely divided form for the production of the tablets.
• the average grain size is in particular between approximately 100 and approximately 200 ⁇ m.
• the amount of gas evolving system used in the tablet determines the rate of disintegration of the tablet in water within certain limits.
• the content is therefore preferably between 20 and 70% by weight, in particular between 40 and 65% by weight, based on the entire tablet.
• the tablets can contain further auxiliaries and additives with which, for example, the manufacturability or also individual properties of the tablet can be further improved during storage and use.
• the disintegration and dissolution of the tablet can be made faster and more uniform and the breaking strength increased.
• Additions of up to 5% by weight, preferably between 1 and 2% by weight, of microcrystalline cellulose are customary. Surprisingly, in contrast to many other water-insoluble tabletting aids, this water-insoluble additive does not lead to residues on the laundry.
• emulsifiers for example lecithin or nonionic surfactants
• Amounts of up to about 5% by weight are preferred, preferably between 0.1 and 2% by weight.
• Other possible auxiliaries and additives are, for example, binders, lubricants, dyes and, for the use of the tablets in the rinse cycle, cationic or non-cationic fabric softener.
• the sorbitol alone or in combination with one or more other solid constituents of the tablet, is placed in a gently working mixer and sprayed with the fragrance while moving. With further mixing, the remaining constituents of the tablet are added and, after homogenization has taken place, the mixture is fed to a tablet press.
• Suitable mixing units are, for example, Patterson Kelley PK Twin Shell Blenders, Lödige ploughshare mixers, Forberg mixers and drum mixers of various designs, of which the Forberg F-20 mixer is particularly preferred.
• the tablets can be pressed on an eccentric press, but rotary machines or hydraulic presses are equally suitable.
• the tablets are made from largely anhydrous raw materials and, if possible, work under controlled climatic conditions with low relative humidity.
• the size and shape of the tablet can largely be adapted to a wide variety of needs. Tablet weights between 5 and 40 g are preferred for use in the household washing process.
• the packaging of the tablets is preferably chosen so that the tablets are protected against the effects of high atmospheric humidity even when stored for a long time.
• All tablets of the individual examples had a weight of 20 g with a density of 1.3 g / cm3 and a diameter of 38 mm.
• the Production was initially carried out in a Forberg F20 mixer, in Examples 1 to 3 the sorbitol being sprayed with the fragrance alone, while in Example 4 the fragrance was sprayed onto the mixture of sodium hydrogen carbonate and sorbitol. The remaining constituents were then added together with further mixing.
• the tablets were pressed on an Ek IV eccentric press from Korsch with a pressing force of 30-50 kN.
• the tablets were all unbreakable and sufficiently abrasion-resistant. They could be washed into the main wash cycle as well as the rinse cycle of various standard washing machines without leaving any residue and quickly and completely dissolved in cold water. No visible residues remained on the laundry.

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Organic Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Molecular Biology (AREA)
• Inorganic Chemistry (AREA)
• Detergent Compositions (AREA)
• Cosmetics (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6442579

Family Applications (1)

Country Status (3)

Cited By (11)

Families Citing this family (19)

Citations (2)

Family Cites Families (3)

• 1991
  • 1991-10-12 DE DE19914133862 patent/DE4133862C2/de not_active Expired - Lifetime
• 1992
  • 1992-10-05 WO PCT/EP1992/002300 patent/WO1993008255A1/fr active Application Filing
  • 1992-10-05 EP EP92116973A patent/EP0537584A1/fr not_active Withdrawn

Patent Citations (2)

Non-Patent Citations (2)

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