Background technology
Hard surface cleaning block (for example washroom cleaning block) is known in this area, and is made into usually to discharge active ingredient automatically and constantly and/or discharge fragrance in air to the liquid through block (block).For example, they can be suspended in the container of the below, edge that is arranged in urinal (lavatory bowl) or urinal, make in flush cycle, flow through block from the water in the water storage box, thereby dissolve a part of block and the active ingredient of block is discharged into urinal.They also can be used in the dish washing machine, perhaps even can be used to manual dishwashing.
The means of different that block is applied to toilet (toilet) is open in the art.The fixer that is used for the solid cleaning agent piece for example has open at EP-B1-586 137.The washroom is liquid dispensing apparatus (liquid dispenser device), for example disclosed device in GB2389123 with another selection of cleaning block.
Liquid and solid rim device (the liquid and the solid rim device) all need the washroom is connected to cleaning block the fixer of bowl rim.Now, the human consumer dislikes having to touch and operate the idea of having placed the device of a few weeks longer in toilet in the time need refilling or replace.Because the reason of environment, the human consumer does not appreciate the behavior that abandons this device yet.
Attempted by various means head it offs.A kind of such substitute is the flap that is used in the water storage box.But this device can not be used in the more and more welcome built-in water storage box that just becoming.Another kind of substitute is pumping unit, and it has at the divider at bowl rim place with at the independent bottle with cleaning liq of toilet outside.The shortcoming that this selection scheme has is pipe that edge device is connected with the bottle with cleaning liq.
Another kind of substitute can find in EP-A1-1 086 199, wherein discloses a kind of mashed prod (paste) of self-adhesion, and this mashed prod can for example be administered to toilet surface from pipe.But the idea that mashed prod is applied to toilet surface needs the human consumer to carry out many actions in toilet staving (toilet bowl) inside, for example extruded tube and lay mashed prod.In addition, the human consumer dislikes the appearance of paste strip or agglomerate (blob).
Still need a kind of detergent block that can be placed in easily on the crust.
The object of the present invention is to provide a kind of detergent block, it can be placed in crust easily; Or even on the wet surface.
Another object of the present invention is to provide a kind of detergent block, it is being rinsed in flushing back repeatedly, and can not stay any residue that can not remove easily with for example toilet brush.
Another object of the present invention is to not damage with the be shaped possibility of detergent block of any attracting mode.
We surprisingly find, the hard surface cleaning block that comprises tackiness agent phase (adhesive phase) reaches at least one in these purposes.
Summary of the invention
Therefore, the invention provides a kind of hard surface cleaning block, it comprises:
-sanitising agent phase (detergent phase),
-tackiness agent phase;
Wherein tackiness agent comprises hydrophobic jointing material mutually, and this material comprises:
At least a hydrophobic compound of-25-60%, its total fusing point (aggregate meltingpoint) is 30-60 ℃; With
The polymkeric substance of-5-75%.
As hereinafter further explaining, the present invention further provides and use hard surface cleaning block of the present invention to make the method for bowl sanitation and the method for dishwashing.
After reading following detailed description and claims, these and other aspects, characteristics and advantage will become apparent for a person skilled in the art.For avoiding feeling uncertain, any characteristics of one aspect of the present invention can be used in any other aspect of the present invention.Be noted that the embodiment that provides in the following description explains the present invention, and be not used for the present invention is defined in those embodiment itself.Similarly, except as otherwise noted, all percentage ratio all is w/w percentage ratio.The digital scope of representing with the form of " from x to y " is understood to include x and y.When for certain features with " from x to y " format description during a plurality of preferable range, it being understood that and also contain all in conjunction with the scope of different end points.
The detailed description of invention
Hard surface cleaning block of the present invention comprise tackiness agent mutually with sanitising agent mutually.
The purpose of tackiness agent phase is to apply the detergent phase to crust.
The purpose of sanitising agent phase is to be released into crust with being added in sanitising agent detergent material (detergent material) and other compositions in mutually, to handle this surface.When this usually occurs in block and contacts with water, for example, as toilet block the time, contact with water by flush toilet, or when in the dishwashing application, contacting with water by getting block wet before use.In case contact with water, block is partly dissolved subsequently.
The preferred component of selecting block makes tensio-active agent with equilibrium level (balanced level) and structurising agent (structurant) so that suitable foam and intensity to be provided to block.
One aspect of the present invention is a kind of bonder system of exploitation, and it can be washed off easily by leniently using the surface of block above the friction.Therefore, on the one hand, block is preferably enough adhered to stand the pressure of the flowing water in toilet, tank or shower tray (shower) securely, and but then, bonding is not sacrifices consisting of an ox, a sheep and a pig solid so that be difficult to remove jointing material from the surface after product uses up.
The sanitising agent phase
Sanitising agent can be the sanitising agent phase of any kind of mutually.It can be, for example, and solid, semisolid or gel.Sanitising agent can be transparent, translucent, opaque or opaque fully mutually.Sanitising agent mutually can directly be attached to the tackiness agent phase, or adheres to (for example in cover (cage), or have sealing coat between two-phase) indirectly.
Sanitising agent comprises tensio-active agent mutually.Suitable tensio-active agent is at " Surface ActiveAgents (tensio-active agent) " the 1st volume, Schwartz ﹠amp; Perry, Interscience 1949 and the 2nd volume, Schwartz, Perry ﹠amp; Berch, Interscience 1958; " McCutcheon ' s Emulsifiersand Detergents (emulsifying agent of McCutcheon and sanitising agent) " of the current version of being published by ManufacturingConfectioners Company; Or " Tenside-Taschenbuch ", H.Stache, the 2nd edition, Carl Hauser Verlag has description in 1981.
The tackiness agent phase
Tackiness agent preferably is suitable for sanitising agent is attached to crust mutually mutually.
Usually, the detergent block of self-adhesion of the present invention, no matter block is adhered to tank, dishwasher or toilet, all will be subjected to water impact.When flushing, water is applied to toilet block, and (front surface is 10cm
2) power on average be 0.3N.Therefore, discharge the required power of block from the surface and be preferably greater than described 0.3N.
Tackiness agent comprises hydrophobic jointing material mutually and randomly comprises hydrophilic jointing material.For the present invention, need hydrophobic jointing material to obtain the suitable resistance to water.For obtaining more firm adhesion, this component can further comprise hydrophilic jointing material.
Hydrophobic jointing material comprises at least a hydrophobic compound that total fusing point is 30 to 60 ℃ (preferred 45 to 55 ℃), and polymkeric substance.Hydrophobic compound is with the 25-60% that accounts for hydrophobic jointing material weight, preferred 35-55%, more preferably the concentration of 40-50% is present in the hydrophobic jointing material.Tackiness agent further comprises the 5-75% that concentration is hydrophobic jointing material weight, preferred 20-70%, more preferably 40-65%, the polymkeric substance of 50-60% most preferably mutually.
Hydrophobic compound is preferably selected from non-polar solvent or low HLB nonionic surface active agent and their combination of natural oil or mineral oil, vaseline, blown oil, partially hydrogenated oil or fat, silicone oil and derivative, thickening.The low HLB of this paper definition refers to preferably to be more preferably less than 10 less than 12.
Polymkeric substance is preferably selected from natural and synthetic cellulosic polymer (cellulosicpolymers) (for example carboxymethyl cellulose), polyacrylic ester, polyvinylpyrrolidone (polyvinylpyrolidone), Malaysia acids/ethylenic copolymer (maleic/vinyl copolymers), based on the polymkeric substance of silicon and their mixture.
Polymkeric substance in hydrophobic jointing material is preferably water-insoluble, and preferred expansion when contacting with water.
Tackiness agent randomly comprises hydrophilic jointing material mutually.Just contact dissolving immediately for preventing hydrophilic tackiness agent mutually in case with water, hydrophilic jointing material (if exist) preferably be arranged to make it to be connected to crust and sanitising agent mutually or sanitising agent and tackiness agent phase between intermediate phase, and in every other side, it is surrounded by hydrophobic jointing material.Even expect that hydrophilic jointing material can be dissolved fast by water, but think that (be reluctant bound by theory) is by obtaining the adhesion of described further improvement in conjunction with the hydrophobic jointing material that surrounds hydrophilic jointing material, because hydrophobic jointing material stops the infiltration of water, and hydrophilic jointing material further improves the bond strength of block.
Hydrophilic tackiness agent is preferably selected from jointing material, hydrophilic polymer, soap and/or their mixture based on starch mutually.An example of this hydrophile adhesive mass is the mixture that comprises PVP polymkeric substance and sodium stearate.
Hydrophilic jointing material exists with the amount of the 0-60% that accounts for total binder phase weight.Preferably, hydrophobic jointing material: the ratio of hydrophilic jointing material is between 10: 1 and 1: 10, more preferably between 5: 1 and 1: 5, also more preferably between 4: 1 and 1: 2, most preferably between 2: 1 and 1: 1.
Described jointing material any or two kinds all can further comprise suitable rheology modifier.Preferably, rheology modifier exists with the concentration of 0-10%.Polymeric viscosifier is the example for the suitable rheology modifiers of vapor deposition silicon-dioxide or silicone oil (silica oil); The triglyceride level of hydrogenation or lipid acid are the examples for the suitable rheology modifiers of lipid acid and triglyceride level; And the example that is used for the suitable rheology modifier of anhydrous, hydrophobic oil is the 12-oxystearic acid.
Optional member
Hard surface cleaning block of the present invention can further comprise washing assistant (builder), dyestuff, spices, sunitizing (hygiene agent), antioxidant, free-radical scavengers, sequestrant, hydrotropic agent, inhibitor, opalizer, whitening agent, sanitas and/or abrasive.
Every kind of optional member (if existence) can be included in sanitising agent phase, tackiness agent mutually or these two mutually in.
Intermediate phase
For some purpose, separating tackiness agent by intermediate phase may be favourable with sanitising agent mutually mutually.This intermediate phase is passable, for example, exists to prevent interphase interaction, perhaps is used for improving alternate bonding.Intermediate phase is waterproof membrane preferably.Middle layer (when existing) is as protective layer, and it does not allow the water infiltration between tackiness agent phase and sanitising agent phase, thereby extra protection is provided mutually for tackiness agent.
Observe, sanitising agent mutually and tackiness agent have waterproof membrane between mutually, further improved during the flushing of wanting number of times and/or rinsing block to the adhesion of crust.
Intermediate phase can be polymeric film, solid barrier or any other known sealing coat.The suitable polymers film has description in co-pending application WO-02/090475 or WO-03/046119.Suitable non-sealing coat based on polymkeric substance can, for example find among EP-B-1 491 622, EP-B-1 522 575 or the EP-B-1 705 241.The thickness in middle layer is at least 50 microns, and preferably less than 500 microns.Most preferred scope is the 100-200 micron.If thickness is less than about 50 microns, tectal undercapacity is with protection adhesive (glue).Expensive and unhelpful during greater than 500 microns.
Perhaps, sanitising agent also can be surrounded by the mutually accompanying shell of tackiness agent (casing) mutually.This shell can be similar to for the common type of toilet with most of outer covers (housing cage) of solid block.
Block size and shape
The shape of hard surface cleaning block can influence the binding property of block.Preferably, block has hydrodynamic shape, and this helps to control better the ablation of block, and this helps better block to be adhered to the surface.Therefore, Yuan Xing smooth-shaped is because hydrodynamic property and than the square/rectangular block with sharp edges more preferably preferably.
The block time limit of service is directly related with prescription (formulation) and the size of block.The toilet block of normal size is generally about 40 grams between 30 to 50 grams.This block can stand at least 100 flushings usually, preferably surpasses 200 flushings.Block preferably stands up to about 300 flushings.
The aequum of tackiness agent phase is determined by the surface of detergent block.In order to form suitable binder layer mutually, the amount of adhesive phase material is preferably 0.01g/cm at least
2, 0.05g/cm at least more preferably
2, 0.1g/cm at least more preferably also
2, but preferably be no more than 1.5g/cm
2, more preferably no more than 0.3g/cm
2, also more preferably no more than 0.2g/cm
2
Using method
Hard surface cleaning block can be used to clean the crust of any kind of.Only surface is the surface that usually contacts with water, for example toilet surface, kitchen basin and shower tray.
Therefore, the invention provides a kind of method that makes bowl sanitation, it comprises the step that block of the present invention is applied to toilet surface.When sanitising agent ran out mutually, the residue of tackiness agent phase was preferably brushed away or is washed away.
The present invention further provides the method for dishwashing, it comprises and block of the present invention is applied to kitchen basin and with the step of tank water-filling.Therefore, water contacts with block, and the part sanitising agent is released in the water mutually.
The present invention further provides a kind of method of dishwashing, this method comprises the step that block of the present invention is applied to dish washing machine inside.
Binder layer of the present invention preferably is directly attached to crust mutually with sanitising agent.But scope of the present invention is not got rid of following situation: sanitising agent phase quilt cover holds, and cover is adhered to the surface.
Embodiment
Now by following non-restrictive example explaination the present invention.
Embodiment 1
Four embodiment (Adh 1-4) of the composition of tackiness agent phase provide in following table 1.
Table 1: tackiness agent phase composite (representing with %)
Component |
Adh 1 |
Adh 2 |
Adh 3 |
Adh 4 |
Vaseline |
24.1 |
40 |
35 |
|
Vaseline (mineral) oil |
19.6 |
|
5 |
|
Carbopol 974 |
9.8 |
|
|
|
Sunflower seed oil |
|
|
|
40 |
The 12-oxystearic acid |
|
|
|
5 |
Vapor deposition silicon-dioxide |
|
|
|
5 |
PVP |
1.9 |
|
|
|
CMC |
9.8 |
30 |
40 |
25 |
The toxilic acid analog copolymer |
34.8 |
30 |
20 |
30 |
The tackiness agent of embodiment is preparation by the following method mutually.
By with about 60 ℃ of heating mixers, and with vaseline and
Be melted in (sunflower seed oil is fit to treated as such) in the mixing tank.Polymkeric substance and other components are added in the clarification melt and are slowly mixed to avoid any ventilation.If ventilation has during mixing taken place, then need before cooling, apply vacuum so that the mixture degassing.The material (mass) that is outgased can be poured onto to be used in the groove (application tank), and this material directly is extracted on the surface of product from using groove.The colorant composition can be added into tackiness agent to provide better properties to product with fragrance component.
Four embodiment (Det 1-4) of sanitising agent phase composite provide in following table 2.
Table 2: sanitising agent phase composite (representing with %)
Component |
Det 1 |
Det 2 |
Det 3 |
Det 4 |
Coconut oil soap (coco soap) |
28 |
15 |
15 |
24 |
Sodium stearate |
25 |
10 |
|
16 |
Sodium oleate |
29 |
|
|
|
The cocoyl sodium isethionate |
|
35 |
35 |
|
α ethylenic sulfonate (alfa olefinesulfonate) |
3 |
|
|
|
Stearic acid |
|
25 |
25 |
|
The 12-oxystearic acid |
|
|
10 |
|
Sucrose |
|
|
|
|
Glycerol |
|
5 |
5 |
10 |
Propylene glycol |
|
5 |
5 |
15 |
Water |
15 |
5 |
5 |
20 |
The sanitising agent of embodiment is preparation by the following method mutually.
Detergent block can be by conventional extrusion molding or the preparation of melt cast (melt casting) method, and method depends on the type of prescription.In extrusion molding, component is mixed together, and is extruded with stick (billet) form subsequently.These sticks are cut into the required size of block subsequently, and apply the tackiness agent phase.In the melt cast method, component is mixed and by being melted with the temperature heating that raises.Extra component, for example the colorant composition can be added into sanitising agent mutually in this stage with fragrance component, to provide better properties to product.Homogeneous mass (homogeneous mass) is poured onto in the mould subsequently and is cooled to room temperature to solidify.In case block is cured, tackiness agent is applied to block mutually.The amount of employed tackiness agent phase is about 100mg/cm
2
When being applied to toilet surface, tackiness agent phase (100mg/cm
2, derive from table 1) with sanitising agent mutually any combination of (40 gram, derive from table 1) be found to keep firmly being attached to the toilet staving, can experience at least 100 flushings.
After block runs out in dissolution process, by use toilet brush leniently friction surface remove the thin layer of tackiness agent phase.After scrubbing, do not stay residue on the surface.
Embodiment 2
In embodiment 2, use table 1 and 2 sanitising agent mutually with tackiness agent mutually, but by the middle layer that it is spaced now.
Middle layer among this embodiment is made up of the material (as disclosed in WO03/046119) that the uv based on epoxy acrylate solidifies, and bed thickness is about 100 microns.
Apply about 100mg/cm
2The tackiness agent phase.
When being administered to toilet surface, any combination that tackiness agent phase (deriving from table 1), intermediate phase and sanitising agent (derive from table 2) mutually is found between its whole usage period (for about 200 flushings) and keeps firmly being attached to the toilet staving.
After block runs out in dissolution process, by use toilet brush leniently friction surface remove the thin layer of tackiness agent phase.After scrubbing, do not stay residue on the surface.
Embodiment 3
Use is assembled the mensuration that texture analyser (texture analyser) that (rigged) be used for measuring horizontal force carries out bounding force.In this experiment, used Lloyd lntruments LRX Plus texture analyser.But similar texture analyser can obtain from for example Instron.
In these embodiments, three kinds of tackiness agent phase composites of the present invention have been compared.
Be assembled the bounding force that is used to measure different tackiness agent phase systems for the texture analyser of measuring horizontal force.The jointing material of 2g is applied to detergent block (smooth) bottom surface (15cm
2).The surface pressure that will have binder layer is investing on the ceramic surface of texture analyser.Be parallel to ceramic surface and move horizontally block, and the data of record compelling force (N).The required power (representing with N) of mobile detergent block provides in following table.
When 25 ℃ temperature T R, use Brookfield (RVT), utilize the axle (spindle) of TD-20.4mm, with the viscosity of the tachometric survey tackiness agent phase of 5rpm.The unit of viscosity is cps (mPa.s).
All experiments all repeat.Average provides in following table.
Embodiment |
Time (s) |
Average vertical power (N) |
Adhesive viscosity |
A |
3.10 |
2.15 |
100,000cps |
B |
3.95 |
2.60 |
300,000cps |
C |
7.70 |
3.95 |
800,000cps |
The needed time of mobile block also is presented, with can force calculation (effort) (that is power * time=reactive force).
The detergent block that adheres to the staving of toilet is subjected to water currents when each flushing.Water is applied to this toilet block, and (front surface is 10cm
2) power be 0.3N.
In table, can find out, be applied to the bottom (15cm of this toilet block
2) binder phase thing of the present invention be suitable for such situation because the power of bounding force during than the water flush toilet is much bigger.