EP3383989B1 - Tablette detergente enrobee - Google Patents

Tablette detergente enrobee Download PDF

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Publication number
EP3383989B1
EP3383989B1 EP16819597.2A EP16819597A EP3383989B1 EP 3383989 B1 EP3383989 B1 EP 3383989B1 EP 16819597 A EP16819597 A EP 16819597A EP 3383989 B1 EP3383989 B1 EP 3383989B1
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EP
European Patent Office
Prior art keywords
tablet
water
detergent tablet
agent
weight
Prior art date
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Active
Application number
EP16819597.2A
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German (de)
English (en)
French (fr)
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EP3383989A1 (fr
Inventor
Valerie Venet
Jacques Brosse
Sandrine ARNAUD
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Eurotab SA
Original Assignee
Eurotab SA
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Priority to PL16819597T priority Critical patent/PL3383989T3/pl
Publication of EP3383989A1 publication Critical patent/EP3383989A1/fr
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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
    • 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
    • C11D17/0082—Coated 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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2065—Polyhydric alcohols
    • 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
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3707—Polyethers, e.g. polyalkyleneoxides
    • 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
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3753—Polyvinylalcohol; Ethers or esters 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
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3761—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid 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
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/378—(Co)polymerised monomers containing sulfur, e.g. sulfonate
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces

Definitions

  • the present invention relates to the field of detergent tablets, especially detergent tablets for dishwashers.
  • Detergents in tablet form have many advantages over other detergents, in the form of liquid or powder, in particular as regards dosing, storage or transport.
  • Detergent tablets are most often prepared by premixing various components preferably in the form of powder or granules but also in liquid form. This premix is then compacted using a press to form a tablet. Industrially, rotary presses are preferably used to form compacted tablets at high rates.
  • multilayer tablets make it possible both to separate the components that can react with each other, and to only compress the compression-sensitive components once by inserting them into the last layer.
  • Multilayer tablets may exhibit slightly delayed disintegrations between different layers, the first layer having been compressed several times thus generally has a longer disintegration than subsequent layers less compressed.
  • EP 2 196 531 discloses a coating for detergent tablets, such as dishwasher tablets, for increasing the stability and strength of the tablet, said coating being water-soluble and containing at least one graft copolymer of polyvinyl alcohol and polyethylene glycol.
  • a detergent tablet formed from at least one active detergent and a detergency builder, and being coated with a coating formed from a water-soluble organic polymer, such as a copolymer of acrylate and maleate.
  • the coatings proposed in these documents for coating the detergent tablets are intended to increase the stability of said tablets by forming a layer which mechanically maintains the compacted detergent composition.
  • they are complex to implement may denature the action of the detergent tablet or reduce the effectiveness and / or disintegration of the detergent tablet.
  • An object of the present invention is to provide a detergent tablet, especially for dishwasher application, having improved efficiency, mechanical strength and stability allowing the tablet to be handled and stored without undergoing degradation.
  • An object of the present invention is also to provide a detergent tablet, especially for dishwashing application, having an improved action while having a manufacturing method simple to implement.
  • a detergent tablet comprising a body formed from compacted powder, said body being coated with a water-soluble coating, said water-soluble coating having a composition comprising a film-forming agent and water, characterized in that the The composition of the water-soluble coating further comprises at least one specific agent to improve the rinsing efficacy of the detergent tablet.
  • a detergent product is therefore proposed in the form of a coated tablet, also called a coating, formed of a water-soluble solution, making it possible to cover the surface of the tablet by forming a homogeneous film adhering to the surface of the tablet.
  • the detergent product in tablet form may for example be a dishwashing detergent.
  • the detergent tablet proposed comprises a body formed for example from compacted powder, said body being coated with a water-soluble coating.
  • the water-soluble coating used has a composition comprising a film-forming agent and water, and has the particularity of further comprising at least one specific agent to improve the rinsing efficiency of the detergent tablet.
  • the composition of the water-soluble coating may also comprise a humectant.
  • the specific agent used to improve the rinsing efficacy of the detergent tablet is preferably selected from compounds having an "anti-spotting” action (which could also be described as anti-trace action) and / or action "anti-filming" (which could also be called anti-film action).
  • spotting is meant any trace on a dishware element, caused by the drying of drops of water on the surface of the material forming the dishware, in particular glass.
  • Calcium and magnesium present in water can for example be deposited on the surface of the glass and form traces during drying in the dishwasher. The higher the water hardness, the higher the amount of calcium and magnesium ions it contains.
  • Frming means any appearance of a film / white deposit on all or a large part of the surface of the material forming the dishware, in particular the opacification of the glass.
  • the calcium and magnesium ions present in the water can for example form deposits of limestone more or less uniform on the surface of the glass.
  • the use of a specific agent intended to improve the rinsing efficiency of the detergent tablet, such as an anti-spotting and / or anti-filming agent, in the composition forming the coating coating the detergent tablet allows for increased stability over existing coated tablets.
  • Providing such a specific agent in the composition forming the coating coating the detergent tablet is also particularly advantageous since it makes it possible to use in particular agents generally being in liquid form and which are therefore difficult to use in tablet detergent formulations.
  • specific agents in liquid form are generally difficult to introduce into the powder mixture to be compacted, and further cause problems of stability of the final compacted tablet, especially because of the water present in such agents specific in liquid form that can react with other raw materials of the detergent formula.
  • the detergent product used is preferably in the form of a tablet which has sufficient cohesion to be handled without being broken and which easily disintegrates in water.
  • the tablet does not require a high hardness, its cohesion and mechanical strength being enhanced by the use of a coating coming to coat the tablet, that is to say adhere to the surface of the tablet.
  • the tablet has a body formed by compaction for example, in particular from a mixture of raw materials in the form of powder or granules, but also in liquid form.
  • the detergent tablets consist of a mixture of components comprising different actions, these components may for example be chosen from surfactants, fillers, sequestering agents, bleaching agents, enzymes, bleaching activators, alkaline agents, polymers, perfumes, dyes.
  • the detergent tablet may consist of a single layer or a stack of several layers that are superimposed on each other, forming a uniform and compact block.
  • the different layers may have the same or different composition.
  • the tablet preferably has an elongated shape with a section having any shape, for example circular, oval, octagonal, or parallelepipedal.
  • the corners of the tablet can be curved so that they are less brittle.
  • Each layer preferably has the same section so that the stack of layers forms a uniform tablet.
  • the detergent tablet preferably has a mass of between 1 gram and 100 grams, and more preferably between 5 grams and 60 grams.
  • the tablet preferably has a mechanical strength of between 5 Newtons and 300 Newtons, and more preferably between 10 Newtons and 90 Newtons.
  • the manufacturing process used generally consists of progressively forming a complex of several layers and compacting this complex with each new addition of layer so as to solidify the tablet.
  • the tablets are manufactured by direct compression with a hydraulic press or a rotary press, especially when it is desired to form tablets at an industrial rate.
  • the first step is therefore to mix the components intended to form the compositions corresponding to each of the layers.
  • the mixture corresponding to the first layer is introduced into the matrix and then pre-compacted to form the first layer.
  • the mixture of the second layer is then introduced into the matrix on the first layer and then pre-compacted as for the first layer, in the same way the other layers of the tablet are introduced into the matrix.
  • the set of layers is then compacted to obtain a shock-resistant tablet.
  • the pre-compaction forces used are preferably between 0 kN and 100 kN (kilonewtons), and more preferably between 0 kN and 50 kN.
  • the compression force used for the final compaction is preferably between 5 kN and 200 kN, and more preferably between 10 kN and 100 kN.
  • a dishwasher detergent tablet includes a combination of one or more of the components described in more detail below, without being limiting thereto.
  • the tablet preferably contains enzymes to form an enzymatic system.
  • enzymes are for example chosen from proteases, amylases, lipases, and combinations thereof.
  • These enzymes are generally in the form of granules that contain a certain amount of active enzymes.
  • the detergent tablets that are preferably used have an overall composition integrating enzymes whose total amount of active enzymes is between 0.003% and 5% by weight, and preferably between 0.003% and 2% by weight.
  • Amylases can be used to decompose starch-based stains, such as, for example, the product dispensed by Genencor under the reference "Powerase 16000HS”.
  • the tablet may also contain proteases to act on protein tasks such as meat and eggs.
  • proteases to act on protein tasks such as meat and eggs.
  • the tablet may also contain lipases to improve the breakdown of grease stains on the dishes.
  • the tablet preferably contains a bleaching agent, that is to say a substance capable of directly or indirectly oxidizing the organic compounds described.
  • the bleaching agents may be of the sodium perborate mono or tetrahydrate type, sodium percarbonate, sodium persilicate, and sodium persulfate.
  • the tablet preferably comprises between 1% and 50% by weight of bleaching agent, and more preferably between 5% and 20% by weight.
  • the tablet preferably contains a tetraacetylenediamine (TAED), pentaacetylglucose (PAG), tetraacethylglycoluryl (TAGU) and sodium benzoloxybenzene sulfonate bleach activator.
  • TAED tetraacetylenediamine
  • PAG pentaacetylglucose
  • TAGU tetraacethylglycoluryl
  • sodium benzoloxybenzene sulfonate bleach activator sodium benzoloxybenzene sulfonate bleach activator.
  • the tablet preferably comprises between 0.5% and 40% by weight activator of the bleaching agent, and more preferably between 1% and 10% by weight.
  • the tablet comprises a ratio between bleaching agents and bleach activators corresponding to a molar ratio of 6 to 1, more preferably a molar ratio of 5 to 1.
  • the tablet may also contain catalysts to improve the effectiveness of agents on oxidizable stains. Mention may be made, for example, of manganese catalysts such as the product referred to as "Peractive FDO X" marketed by Weylchem.
  • Detergent additives trap metal ions such as calcium and magnesium present in the wash solution by complexation, ion exchange or precipitation.
  • Detergent adjuvants are preferably present in an amount of from 5% to 99% by weight, and more preferably from 10% to 50% by weight.
  • Non-phosphorus water soluble builders can be organic or inorganic.
  • the inorganic compounds that may be present are chosen from zeolites, phyllosilicates, alkali metal carbonates (generally sodium), and sodium silicates, mixtures of sodium carbonate and sodium silicates, such as the product referenced "questlock Distributed by the company Amcol.
  • the organic compounds that may be present are chosen from polycarboxylate polymers such as polyacrylates, acrylic / maleic copolymers and acrylic phosphonates, monomeric polycarboxylates such as citrates, gluconates, oxydisuccinates, mono-, di- and glycerol tri-succinates, carboxymethyloxysuccinates, polycarboxylic amino compounds such as methylglycinediacetate (MGDA) carboxymethyloxymalonates, glutamic diacetic acid (GLDA), imminodisuccinate (IDS), ethylenediamine disuccinate (EDDS), dipicolinates, nitrilotriacetates and hydroxyethyliminodi acetates.
  • polycarboxylate polymers such as polyacrylates, acrylic / maleic copolymers and acrylic phosphonates
  • monomeric polycarboxylates such as citrates, gluconates, oxydisuccinates, mono-, di- and
  • MGDA methylglycinediacetate acid
  • the class of water-soluble phosphorus adjuvants includes orthophosphates, methaphosphates, pyrophosphates and alkali metal polyphosphates.
  • inorganic phosphorus detergency builders include sodium and potassium tripolyphosphates, orthophosphates and hexametaphosphates.
  • Sodium tripolyphosphate is a particularly preferred phosphorus adjuvant for dishwasher tablets. It exists in hydrated, anhydrous or partially hydrated form, and mixtures of these forms can be used to regulate the rate of disintegration and dissolution of the tablet.
  • the pH of the wash solution must be at least 9 and preferably between 9.5 and 12.5.
  • Most detergency builders are alkaline, so there is no need to add other compounds to the tablet to adjust the pH.
  • the tablet preferably contains one or more nonionic surfactants, for example low foaming nonionic surfactants.
  • the surfactants are amphiphilic molecules, which are composed of an apolar lipophilic part and a polar hydrophilic part.
  • the amount of surfactants in the tablet is preferably in the range of 0.05% to 20% by weight, and more preferably in the range of 1% to 5% by weight.
  • surfactants in solid form are easier to use in tablets which also have solid compositions.
  • the surfactant when it is in liquid form, it can also be introduced into the tablet, in which case it is adsorbed on supports such as sodium carbonate or silica.
  • the synthetic nonionic surfactants may be generally defined as compounds derived from the condensation between alkylene oxide groups and hydrophobic organic compounds, which may be aliphatic or aromatic.
  • the length of the hydrophilic portion of the surfactant can be easily adjusted to obtain a water-soluble compound having the desired HLB, the HLB translating the degree of hydrophilicity or lipophilicity of the surfactant.
  • anionic surfactants especially to improve the drying of dishes for dishwasher tablets.
  • the amount of anionic surfactants present in the tablet is preferably between 0.05% and 40% by weight, and preferably between 1% and 20% by weight.
  • this may include additional components that will be used according to the desired specificities of the detergent tablet.
  • protective additives such as benzotriazole and zinc salts may be used. These additives form a dishwashing and dishwasher protection system against unwanted chemical attack from either component of the tablet.
  • Chelating agents for trapping metal ions may also be present in the composition. They are also known as sequestering agents or complexing metal ions. If necessary, it is preferable that the amount of chelating agents is of the order of 0.5% to 20% by weight, and preferably 0.5% to 5% by weight.
  • Preferred chelating agents include organic phosphonates, amino carboxylates, polyfunctionally substituted compounds, and mixtures thereof. It is also possible to use homopolymers of acrylic acid or copolymers of acrylic and maleic acid.
  • bursting agents which are intended to accelerate the disintegration of the layer in which they are incorporated.
  • Preferred bursting agents include carboxymethylcellulose, crosslinked carboxymethylcellulose, croscarmellose sodium, cellulose, polyvinylpyrrolidone and mixtures thereof.
  • Dyes can also be added to differentiate the layers from each other. These dyes are essentially intended to improve the aesthetic appearance of the tablet vis-à-vis the consumer.
  • binders that can increase the hardness of the pellet and reduce its friability.
  • binders include polyethylene glycol.
  • Lubricants can also be used to facilitate ejection of the tablet at the output of the rotary press.
  • lubricants that can be used include alkali metal stearates such as calcium stearate and magnesium stearate.
  • additives could be used such as anti-foaming agents.
  • the main body constituting the detergent tablet is formed, a particular solution is used to form the water-soluble coating, or coating, intended to cover the surface of the tablet.
  • this coating coming to coat the body of the detergent tablet has other advantages than that of protecting the body against shocks and against the humidity present in the ambient air. Indeed, he is going allow for example to improve the action of the detergent tablet, particularly with regard to rinsing. It will also participate in the overall stability of the detergent tablet while providing better disintegration and low friability of the body.
  • the solution used to form the water soluble coating contains a film forming agent, water and a specific agent to improve the rinsing efficiency of the detergent tablet.
  • the solution may for example comprise polyvinyl alcohol (PVA).
  • PVA polyvinyl alcohol
  • the PVAs that can be used preferably have a degree of hydrolysis greater than or equal to 40% (mol%), preferably between 70% and 98% (mol%), and more preferably a degree of hydrolysis between 80% and 90%.
  • the PVAs used preferably have a molar mass (Mw) of between 10,000 g / mol and 200,000 g / mol, and more preferably between 15,000 g / mol and 100,000 g / mol.
  • Mw molar mass
  • the mass molar mass of the PVA strongly impacts the final viscosity of the coating solution.
  • the coating solution may contain PVA in a proportion of between 5% and 80% by weight relative to the total weight of the coating solution, preferably between 20% and 60% by weight relative to the total weight of the coating solution. coating, and more preferably between 30% and 55% by weight relative to the total weight of the coating solution.
  • a humectant may further be used in the solution to form the water-soluble coating. Humectants especially prevent water from migrating into the tablet.
  • Such a humectant is for example selected from glycerine, polyethylene glycol, and their combination.
  • the coating solution may contain humectants in a proportion of less than or equal to 25% by weight relative to the total weight of the coating solution, preferably in a proportion of between 1% and 20% by weight relative to the total weight. of the coating solution, and more preferably a proportion of between 2% and 10% by weight relative to the total weight of the coating solution.
  • the specific agent for improving the rinsing efficiency is preferably an anti-spotting and / or anti-filming agent.
  • the anti-spotting agents make it possible to eliminate or limit the appearance of spotting, that is to say traces, in particular by avoiding the nucleation of drops of water on the surface of the glass or dishes.
  • the anti-filming agents make it possible to limit or eliminate the appearance of filming, that is to say the appearance of a film or white deposit.
  • the coating solution preferably contains specific agents in a proportion of between 0.05% and 50% by weight relative to the total weight of the coating solution, and more preferably between 2% and 20% by weight relative to the total weight of the coating solution.
  • the specific agents for improving the rinsing efficiency are specific polymers, preferably polymers having an anti-spotting and / or anti-filming action.
  • an anti-spotting agent it is possible for example to choose a compound from carboxylate polymers, hydrophobic modified carboxylate polymers, in particular HASE polymers, and combinations thereof.
  • carboxylate polymers hydrophobic modified carboxylate polymers, in particular HASE polymers, and combinations thereof.
  • HASE polymers hydrophobic modified carboxylate polymers
  • one of the products marketed by the Dow Chemical Company can be used under the references “acusol 820", “acusol 460” or "acusol 460ND”.
  • an anti-spotting agent it is also possible to choose a compound among the hydrophobic modified acrylic / styrene copolymers.
  • an anti-filming agent one can for example choose a compound among the copolymers of acrylic acid and of sulfonated monomer.
  • an anti-filming agent it is also possible to choose a compound among the copolymers of acrylic acid and of sulfonic acid.
  • acusol 588G the product marketed by Dow Chemical under the reference “acusol 588G” may be used.
  • an anti-filming agent it is also possible to choose a compound among the copolymers of acrylic acid and maleic acid.
  • acusol 497NG marketed by Dow Chemical
  • alcosperse175ND marketed by AkzoNobel
  • Sokalan CP42 marketed by BASF.
  • the coating solution may also contain a bittering agent such as denatonium benzoate and / or perfume.
  • the rest of the solution is water.
  • the various compounds are mixed at room temperature to form the solution for forming the coating of the detergent tablet.
  • the resulting mixture is for example sprayed on the surface of the body forming the detergent tablet, preferably at room temperature using a nozzle system.
  • the thickness of the coating deposited on the surface of the detergent tablet is for example between 0.05 ⁇ m and 1000 ⁇ m, preferably between 5 ⁇ m and 300 ⁇ m, and more preferably between 15 ⁇ m and 150 ⁇ m.
  • the water-soluble coating deposited on the tablet preferably represents between 0.5% and 15% of the total mass of the detergent tablet, and more preferably between 2% and 5% of the mass of the tablet.
  • Test 1 Spraying the coating solution on a tablet
  • the objective of this test is to compare the disintegration time and friability of a coated tablet, that is to say coated with a water-soluble coating, and a non-coated tablet, that is to say say without coating.
  • the different layers of the tablet are compressed on a hydraulic press so as to form a tablet having an overall mass of 16 g.
  • the pre-compression and compression forces used are shown in Table 3 below.
  • the composition of the solution to form the water-soluble coating is summarized in Table 2 below.
  • a uniform coating with a total mass of 0.4 g is deposited on the surface of the tablet so as to form a coating.
  • Table 2 ⁇ / i> Raw material Coating solution (% by weight) Polyvinyl alcohol 45.84 Water 47.91 Glycerin 0 Acusol 460 ND 6.25
  • the hardness of the tablets was measured on an MTS durometer.
  • the disintegration time of the tablets obtained was measured on equipment that goes back and forth with a frequency of 60 strokes / min.
  • the shelves are placed in a basket with multiple holes to let the water through.
  • the baskets are then soaked in 1.8L beakers of water at 30 ° C.
  • the disintegration time is noted a once the tablet is completely disintegrated and there are no more tablet residues in the basket.
  • Test 2 Use of an anti-spotting agent in the coating solution to improve the rinsing efficiency of a dishwasher tablet
  • the objective of this test is to evaluate the influence of the use of a coating incorporating an anti-spotting agent on the rinsing efficiency of the tablets.
  • the anti-spotting agent used for this comparative test is the product referred to as "acusol 460ND” marketed by Dow Chemical.
  • the compounds used in the formula of each tablet are divided into three layers.
  • the compounds of the different layers are shown in Tables 4a, 4b and 4c below.
  • a coating solution is sprayed on the surface of tablets thus formed to coat the tablet with a water-soluble coating.
  • Table 5 specifies the composition of the coating solution used for these tablets No. 4, No. 5, No. 6 and No. 7. ⁇ i> Table 5 ⁇ / i> Ingredients solution coating Tablet # 4 (% by weight) Tablet # 5 (% by weight) Tablet # 6 (% by weight) Tablet # 7 (% by weight) Polyvinyl alcohol 47,90 47,90 45.84 45.84 Water 52.10 50,10 47.91 46.91 Glycerin 0 2.00 0 1.00 Acusol 460 ND 0 0 6.25 6.25 TOTAL 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00
  • Each of tablets No. 3, No. 4, No. 5, No. 6 and No. 7 thus manufactured comprise the same amount of anti-spotting agent, namely 0.029 g of "Acusol 460 ND" product.
  • Table 6 summarizes the manufacturing parameters of the different tablets, and gives the measurements of hardness and disintegration of each of the tablets, it being understood that these parameters were measured in the same way as for the test 1.
  • Table 6 ⁇ i> Table 6 ⁇ / i> Tablet n ° 3 Tablet n ° 4 Tablet n ° 5 Tablet n ° 6 Tablet n ° 7 Mass layer 1 (g) 6 6 6 6 6 Mass layer 2 (g) 5 5 5 5 5 Mass layer 3 (g) 5 5 5 5 5 5 5
  • the tests to measure the rinsing efficiency of the tablets were carried out with a Fagor LFF-041 dishwasher programmed in a short wash cycle (30 minutes) at 35 ° C and a water hardness of 35 ° C. TH.
  • the rinsing efficiency of the tablets is evaluated by observation of the glasses using a box with spots.
  • Spotting is measured after a wash cycle. Spotting is rated on a scale of scores between 0 and 7, where 0 is the worst score (ineffective rinse) and 7 is the best rating (very effective rinse).
  • the filming is measured after 5 successive washing cycles. The filming is evaluated by observation of the veil present on the glasses. Filming is rated with a rating scale between 0 and 10, where 0 is the worst rating (ineffective rinsing) and 10 is the best rating (very effective rinsing).
  • the gloss is evaluated after 1 wash cycle.
  • the brilliance is evaluated thanks to the scale of notes of 0 to 10, where 0 is the worst note (ineffective rinsing) and 10 is the best note (rinsing very effective).
  • the addition of the anti-spotting agent (Acusol 460 ND) in the coating solution therefore makes it possible to increase the rinsing efficiency on the short cycle spotting.
  • the rapid dispersion of the anti-spotting agent (Acusol 460 ND) in the washing solution makes it possible to improve the efficiency on the spotting of the tablet.
  • Test 3 Use of an anti-spotting polymer in the coating solution to improve the stability of a dishwasher tablet
  • the objective of this test is to evaluate the influence of the use of a coating incorporating an anti-spotting agent on the shelf stability.
  • the anti-spotting agent used for this comparative test is the product referred to as "acusol 460ND” marketed by Dow Chemical.
  • the compounds used in the formula of each tablet are divided into three layers.
  • the compounds of the different layers are shown in Tables 8a, 8b and 8c below.
  • Each of the manufactured tablets # 8 are individually wrapped in a water-soluble flowpack.
  • a water-soluble flowpack is a package formed from polyvinyl alcohol, of thickness 35 ⁇ m, such as for example the product referenced "L711" marketed by the company MonoSol.
  • a coating solution is sprayed on the surface of tablets thus formed to coat the tablet with a water-soluble coating.
  • a uniform coating of 0.5 g coating solution is deposited on the surface of the tablet to form a uniform coating.
  • Table 9 specifies the composition of the coating solution used for these tablets No. 9, No. 10, No. 11 and No. 12. ⁇ i> Table 9 ⁇ / i> Ingredients solution coating Tablet n ° 9 (% in mass) Tablet # 10 (% by weight) Tablet n ° 11 (% in mass) Tablet # 12 (% by weight) Polyvinyl alcohol 47,90 47,90 45.84 45.84 Water 52.10 50,10 47.91 46.91 Glycerin 0 2.00 0 1.00 Acusol 460 ND 0 0 6.25 6.25 TOTAL 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00
  • Table 10 summarizes the manufacturing parameters of the various tablets, and gives the measurements of hardness and disintegration of each of the tablets, it being understood that these parameters were measured in the same way as for the test 1.
  • Table 10 ⁇ i> Table 10 ⁇ / i> Tablet n ° 8 Tablet n ° 9 Tablet n ° 10 Tablet n ° 11 Tablet n ° 12
  • Each flexible bag containing the 5 copies of each of the different tablets is then placed in a climatic chamber at 38 ° C. and 70% relative humidity for 2 weeks.
  • each tablet is tested to examine the visual appearance and measure the disintegration time of each type of tablet.
  • disintegration time tablets 11 and 12 is consistent and substantially identical to the disintegration time of other types of tablets.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
EP16819597.2A 2015-12-04 2016-12-02 Tablette detergente enrobee Active EP3383989B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16819597T PL3383989T3 (pl) 2015-12-04 2016-12-02 Powlekana tabletka detergentu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1561859A FR3044678B1 (fr) 2015-12-04 2015-12-04 Tablette detergente enrobee
PCT/FR2016/053192 WO2017093694A1 (fr) 2015-12-04 2016-12-02 Tablette detergente enrobee

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EP3383989A1 EP3383989A1 (fr) 2018-10-10
EP3383989B1 true EP3383989B1 (fr) 2019-03-20

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DK (1) DK3383989T3 (pl)
ES (1) ES2729944T3 (pl)
FR (1) FR3044678B1 (pl)
PL (1) PL3383989T3 (pl)
TR (1) TR201907203T4 (pl)
WO (1) WO2017093694A1 (pl)

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FR3113065A1 (fr) 2020-07-31 2022-02-04 Eurotab Operations Nouvelle tablette détergente enrobée
FR3130839B1 (fr) 2021-12-22 2023-12-01 Eurotab Operations Nouvelle tablette détergente enrobée

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Publication number Priority date Publication date Assignee Title
US3231506A (en) 1961-04-03 1966-01-25 Colgate Palmolive Co Process for making detergent tablet
DE69423114T2 (de) * 1993-12-30 2000-09-28 Ecolab Inc., St. Paul Stabiler hygroskopischer reinigungsartikel
GB9422924D0 (en) * 1994-11-14 1995-01-04 Unilever Plc Detergent compositions
EP0979862A1 (en) 1998-08-13 2000-02-16 The Procter & Gamble Company Multilayer detergent tablet with different hardness
US6448323B1 (en) * 1999-07-09 2002-09-10 Bpsi Holdings, Inc. Film coatings and film coating compositions based on polyvinyl alcohol
GB0004805D0 (en) 2000-03-01 2000-04-19 Procter & Gamble Solid bodies
EP1149896A1 (en) 2000-04-27 2001-10-31 The Procter & Gamble Company Coating composition for solid bodies
ATE288472T1 (de) 2000-07-31 2005-02-15 Mcbride Robert Ltd Beschichtung von tabletten
DE10064985A1 (de) * 2000-12-23 2002-07-11 Henkel Kgaa Wasch- und Reinigungsmittelformkörper mit Beschichtung
EP1413624B1 (en) * 2002-10-22 2006-03-08 Rohm and Haas Company Tablet coating
GB0226763D0 (en) 2002-11-15 2002-12-24 Polyval Plc Polyvinyl alcohol composition and film
EP1667645A1 (en) * 2003-09-19 2006-06-14 Symyx Technologies Materials for enhanced delivery of hydrophilic active agents in personal care formulations
EP1903099A1 (en) * 2006-09-22 2008-03-26 Dalli-Werke GmbH & Co. KG Coated detergent compositions and manufacture process
PL2045319T3 (pl) * 2007-09-19 2016-07-29 Dalli Werke Gmbh & Co Kg Pokryta detergentowa kompozycja oraz sposób wytwarzania
EP2196531B1 (en) * 2008-12-05 2014-09-03 Dalli-Werke GmbH & Co. KG Polymer coated detergent tablet
BE1020860A3 (nl) 2012-08-09 2014-06-03 Ecover Co Ordination Ct Nv Tablet coating.

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DK3383989T3 (da) 2019-06-03
ES2729944T3 (es) 2019-11-07
US10927330B2 (en) 2021-02-23
TR201907203T4 (tr) 2019-06-21
WO2017093694A1 (fr) 2017-06-08
FR3044678A1 (fr) 2017-06-09
EP3383989A1 (fr) 2018-10-10
FR3044678B1 (fr) 2017-12-08
US20180371383A1 (en) 2018-12-27
PL3383989T3 (pl) 2019-09-30

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