CN1399589A - Process for preparing foam component - Google Patents

Abstract

An elastic article is provided which comprises a foam matrix formed from a polymeric material and a plasticiser, a stabilising agent and an active ingredient, such as a detergent active ingredient, typically to be delivered to an aqueous environment. Said elastic article provides a means to deliver an active ingredient to an aqueous environment, preferably the active ingredients being a detergent active ingredient, preferably enzymes, and the aqueous environment being the wash water.

Description

The method for preparing foam formation

Technical field

The present invention relates to prepare foam formation method and can be by the foam formation of this method preparation, described method especially is fit to the foam formation that preparation is used for the Cleasing compositions such as the laundry Cleasing compositions.

Background technology

Composition such as cleaning products and personal care product, cosmetics and medical product usually comprises the active component of intending being discharged in the water or require to keep activity in aqueous environment.In the middle of these active components, many humidity and variations in temperature, light and/or air-sensitive to lay up period.

Many these active components, particularly enzyme, existing another problem are that the time spent of doing that they are subjected to physical force during operation often forms dust easily.This not only causes waste product, and dust also causes health and health problem.

Be intended to solve the trial of this class problem and develop the method for utilizing smears or encapsulating drug to protect these active components.With regard to the typical case, these active components are to make by coating being sprayed on the core grain that contains active component to be protected.High, time-consuming and technical being difficult to carry out of this kind method cost.

The inventor provides a kind of method for preparing foam formation at this, and the foam formation of making impacts the fastness height, does the time spent and does not form dust being subjected to physical force that operating period often runs into.The inventive method is made foam formation in one step, do not need many processing steps of balling-up and so on.

Described method provide a kind of fast, simple, convenient and good means of cost benefit provide foam formation, spherical foam component especially.

Can be comparatively shock-resistant by the foam formation that the inventive method is produced, and do the time spent and do not form dust being subjected to physical force that operating period often runs into.

Summary of the invention

The invention provides a kind of method for preparing foam formation, described method comprises the aperture of viscous mixture by the rotation extrusion board is expressed into the step of accepting the surface, wherein before described viscous mixture pushes through described aperture, simultaneously or afterwards a kind of gas is added in the described viscous mixture.

Beeline between preferred described extrusion board and the described acceptance surface is between 50 μ m～3000 μ m, and the size of preferred described aperture is between 50 μ m～3000 μ m.

The present invention also provides obtainable thus foam formation.

Detailed Description Of The Invention

The method for preparing foam formation

The inventive method below is called " method ", and a kind of preparation foam formation is provided, in particular for simple, quick, the efficient and good means of cost benefit of the foam formation in the Cleasing compositions.Below, described foam formation is described in more detail.

The inventive method comprises the aperture of viscous mixture by the rotation extrusion board is expressed into the step of accepting the surface, wherein before described viscous mixture pushes through described aperture, simultaneously or afterwards a kind of gas is added in the described viscous mixture.

Beeline between preferred described extrusion board and the described acceptance surface is between 50 μ m～3000 μ m, and the size of preferred described aperture is between 50 μ m～3000 μ m.

May be preferably, this method, especially viscous mixture push through the step of aperture, implement-20 ℃～100 ℃ temperature, preferably from-10 ℃, or from 0 ℃, or from 10 ℃, preferably to 90 ℃, or to 80 ℃, or to 70 ℃, or to 60 ℃, or to 50 ℃, or to 40 ℃.If foam formation comprises the thermally sensitive composition of active component and so on, then this method is preferably implemented under the temperature compatible with described responsive to temperature composition.For the foam formation that contains enzyme, this temperature is generally between 0 ℃～50 ℃, preferably between 10 ℃～30 ℃.

Viscous mixture

Viscous mixture is meant that here viscosity is usually between certain " mixture " of 1mPa.s～200000mPa.s.The mixture here is fluid or liquid preferably.The viscosity of mixture depends on the chemistry and the physical property of each composition in the mixture, generally depends on composition required in the foam formation.Yet if viscosity is low excessively, mixture will trickle to accepting on the surface through aperture too quickly, therefore can not form and extrude particle.Otherwise if mixture viscosity is too high, then mixture or can't pass through aperture perhaps forms extruding noodle, rather than extrudes particle, and this will require the cut-out step of adding and may also want the balling-up step just can make available foam formation.

With regard to the typical case, the viscosity of mixture is from 2mPa.s, or from 5mPa.s, or from 7mPa.s, or from 10mPa.s, or from 12mPa.s, or from 15mPa.s, or from 17mPa.s, or from 20mPa.s, or from 22mPa.s, or from 25mPa.s, or from 50mPa.s, or from 100mPa.s, or from 150mPa.s, or, arrive 150000mPa.s usually, or to 100000mPa.s from 200mPa.s, or to 50000mPa.s, or to 25000mPa.s, or to 12000mPa.s, or to 10000mPa.s, or to 8000mPa.s, or to 5000mPa.s.

This mixture generally comprises the whole or most of compositions that will be present in the foam formation.With regard to the typical case, this mixture comprises polymeric material, plasticizer and active component, preferably also comprises stabilizing agent, cosolvent.Be described in more detail below described polymeric material, plasticizer, active component, stabilizing agent, cosolvent.

The water content of mixture influences the physics and the chemical property of mixture.With regard to the typical case, the water content of mixture is between 0.1wt%～80wt%, preferred 60wt%～80wt%.If mixture comprises the composition to water sensitive, active component particularly, the composition of degraded for example takes place in the presence of water, then the water content of preferred mixture is low as far as possible, may be lower than 5wt%, or be lower than 3wt%, or be lower than 1wt%, or be lower than 0.1wt%, perhaps may in addition preferably this mixture is not moisture.Term " water " refers generally to the hydrone that do not combine with other compounds, and for example term " water " does not generally comprise the water content of the hydrate molecule such as aluminosilicate, yet but comprises and joining in the mixture, for example as the water of processing aid.

Alternatively, to contain water also may be preferred to mixture.For example,, then may preferred water also be present in the mixture, when forming foam formation, play the plasticizer effect by described polymeric material if mixture comprises polymeric material.If water is present in the mixture, then the amount of preferred described water is 3wt% at least, or is 5wt% at least, or is 10wt% at least, or is 20wt% at least, perhaps even at least 40wt%.

The shaping that the existence of solid matter influences extrusion and extrudes particle subsequently in described mixture.Extruding of described liquid, when the dissolved solid material is not present in the described mixture, comparatively difficult usually.Moreover, by the formed additional processing step that particle generally needs balling-up and so on of extruding of extruding of the mixture that contains dissolved solid material not.Therefore preferred this mixture preferably comprises (by weight) less than 30%, preferably less than 15%, preferably less than 12%, preferably less than 10%, preferably less than 7%, preferably less than 5%, preferably less than 3%, preferably less than 1%, preferably less than 0.1% dissolved solid material not.Very preferably mixture does not contain not dissolved solid material.With regard to the typical case, the content of not dissolved solid material described above is meant the solid matter content during described mixture pushes through rotation extrusion board aperture and arrives the step of accepting the surface.May be preferably, this mixture comprises solid matter during the inventive method except that extrusion step.

If there is not dissolved solid material during the extrusion step, then preferably, solid matter be granularity less than, thereby can be by being of a size of the not dissolved particles form of 50 μ m～3000 μ m apertures or described other preferred sizes of aperture, this will be described in greater detail below.

The rotation extrusion board

The rotating speed of rotation extrusion board is preferably between 1rpm～1000rpm, preferably from 2rpm, or from 3rpm, or from 4rpm, or from 5rpm, or from 6rpm, or from 7rpm, or from 8rpm, or from 9rpm, or, preferably arrive 900rpm from 10rpm, or to 800rpm, or to 700rpm, or to 600rpm, or to 500rpm, or to 400rpm, or to 300rpm, or to 200rpm, or to 100rpm, or to 50rpm.The rotation extrusion board can be along rotating clockwise or counterclockwise.

The tip speed of rotation extrusion board is generally between 0.1ms ^-1～1600ms ^-1, perhaps generally from 10ms ^-1, perhaps from 50ms ^-1, perhaps from 100ms ^-1, perhaps from 150ms ^-1, perhaps from 200ms ^-1, generally arrive 900ms ^-1, perhaps arrive 800ms ^-1, perhaps arrive 700ms ^-1, perhaps arrive 600ms ^-1, perhaps arrive 500ms ^-1, perhaps arrive 400ms ^-1With regard to the object of the invention, the tip speed of rotation extrusion board is defined as described rotation extrusion board outer surface or outer peripheral angular speed usually.

The direction of rotation of rotation extrusion board, perhaps usually, anglec of rotation direction, general near normal or pass the flow direction of rotation extrusion board aperture perpendicular to thick liquid.

The rotation extrusion board is being a housing in typical case, and it surrounds or surround at least in part the volume that can hold the preceding liquid of extrusion step.Housing rotates round described volume by clockwise or counterclockwise mode.This housing can be single hull or can be the above housing of one deck, for example a skin and an internal layer.With regard to the object of the invention, if rotation extrusion board housing form and the described housing taking to surround a certain volume comprise more than one deck, then have only a layer to need rotation, though may be more than preferred one deck, or even all layers of housing all rotate.If housing is made up of outer and internal layer, then preferably outer the rotation, although can rotate by internal layer, or even internal layer and skin all rotate.

Preferred rotation extrusion board is shapes such as cylinder, spheroid or cube.The rotation extrusion board can be a polyhedron, for example tetrahedron, pentahedron, hexahedron, rhombus, heptahedron, octahedron, enneahedron, decahedron.Very preferably rotating extrusion board is cylinder, for example cylindrical shape.

The rotation extrusion board comprises size between 50 μ m～3000 μ m, the aperture of preferred 100 μ m～1000 μ m.These apertures generally cut formation with laser on extrusion board.With regard to the typical case, described rotation extrusion board comprises more than one aperture, preferred many apertures.If the rotation extrusion board comprises more than one aperture, then described aperture can be different dimensionally.Utilize different on number of aperture difference dimensionally and same size aperture, can control the Size Distribution of extruding particle, therefore the particle of extruding that can obtain to have the requirement size distribution by the inventive method.

The typical density of the aperture that exists on the described rotation extrusion board is between 0.001mm ^-2～400mm ^-2, or from 0.01mm ^-2, or from 0.1mm ^-2, or from 1mm ^-2, or from 5mm ^-2, or from 10mm ^-2, or from 25mm ^-2, or from 50mm ^-2, or from 100mm ^-2, and preferably arrive 300mm ^-2, or to 275mm ^-2, or to 250mm ^-2, or to 225mm ^-2, or to 200mm ^-2, or to 175mm ^-2, or to 150mm ^-2The zones of different of rotation extrusion board can have the different pore density that is present in described zone.For example, the aperture of reduced size can exist with higher density in a zone of rotation extrusion board, and the large-size aperture then can be in the zones of different of described rotation extrusion board to exist than low-density.

If preferred the inventive method prepares a kind of spherical foam component, then preferred aperture has alike shape, or a kind of square, rectangle, rhombus, triangle, ellipse, circle or diamond, preferred diamond.If use an above aperture among the present invention, then can adopt the above hole shape of a class.

May preferably rotate extrusion board and scribble releasing agent at least in part, preferably coating fully.Releasing agent plays and reduces adhesive effect between rotation extrusion board surface and the liquid, therefore, helps described liquid from rotating the demoulding on the extrusion board, especially during extrusion step.Typical releasing agent comprises hydrophobic material, for example wax, oil, fat and combination thereof, preferred silicone oil.

The rotation extrusion board also can be coated with to reduce interactional auxiliary agent between rotation extrusion board and liquid or its part.Preferred coating is plasma coating and polishing finish, or its combination.This type coating can be to comprise outside the coating of releasing agent additionally in addition, perhaps also can combine with release agent coating.Preferred plasma coating comprises polyethylene, polypropylene or their combination.Typical plasma coating comprises the principal component of commodity Teflon by name.

If the rotation extrusion board is the housing that its volume energy holds this liquid, then preferred inner surface or outer surface all are coated with or partly are coated with releasing agent and/or other coatings, for example plasma coating.If the rotation extrusion board is the housing that comprises that one deck is above, then may be preferably, one deck or its part scribble arbitrarily, perhaps partly scribble releasing agent and/or other coatings, for example plasma coating.

Can use more than one in the methods of the invention and rotate extrusion board, although preferably only use a rotation extrusion board here.

Here the preferred rotation extrusion board that uses be by Sandvik Conveyor GMBH company by those of trade name Rotoform supply, and by Gausche Machinefabriek company by those of trade name Disk Pastillator supply.

Extruding of viscous mixture

Mixture is expressed into by aperture and accepts on the surface from the rotation extrusion board.The temperature of this processing step preferably as mentioned above.

With regard to the typical case, this mixture is forced to pass through aperture by certain compulsive means.Mixture pushes through the required power of aperture and depends on the temperature of orifice size, described extrusion step and the physics and the chemical property of described mixture, for example viscosity.Compulsive means can comprise liquid is pushed away, scrapes, inhales small holes.Compulsive means can be taked the form of certain solid body, and small holes is scraped mixture or push away in for example rod, wedge, scraper or their combination.Compulsive means also can be the pumps with this mixture force feed small holes.The combination that pump and one or more are selected from rod, wedge or scraper also can be used on here.

This mixture is extruded from aperture with extrudate drop form usually.Described drop is forced to be attached to accept on the surface by described compulsive means usually.The rotation of extrusion board is broken drop usually, extrudes particle thereby the part of described drop is stayed surperficial upward one of the formation of acceptance.With extrude drop break required power must be greater than the yield strength of described drop.

Accept the surface

Accept the general extrudate of accepting the spinning extrusion board in surface, the after this described liquid of extruding forms one immediately and extrudes particle.

Accept the surface and can be a band, drum, coil, present a theatrical performance as the last item on a programme, perhaps shape is similar or be equal to the rotation extrusion board.Preferably accepting the surface is a band or a dish.More preferably accepting the surface is a conveyer belt or a rotating disk.

The beeline of accepting between surface and the rotation extrusion board is 50 μ m～3000 μ m.With regard to the object of the invention, beeline is meant the distance that adjacent closest approach place measures.The height or the section distance of the foam formation of preferred this distance the inventive method preparation just.For example, if need the spherical foam component of a kind of average diameter 200 μ m, beeline is 200 μ m with accepting between the surface preferably then to rotate extrusion board.

Accepting the surface can rotate, and described rotation can be clockwise or counterclockwise.Preferred acceptance surface is done with respect to the rotation extrusion board and is rotated counterclockwise.For example, if the rotation extrusion board is rotated in a clockwise direction, then preferably accepts the surface and rotate in the counterclockwise direction.This will prevent that particle and/or the liquid extruded from smearing phenomenon, perhaps be rotated extrusion board and damage when being positioned to accept on the surface.

Accept the temperature that the surface can maintain any requirement, this can comprise heating or the cooling of accepting the surface to described.Preferred acceptance surface is in-20 ℃～200 ℃ temperature, preferably from-10 ℃, or from 0 ℃, or from 10 ℃, or from 20 ℃, and preferably to 150 ℃, or to 100 ℃, or to 99 ℃, or to 75 ℃, or to 60 ℃ or to 50 ℃, or to 40 ℃, or to 30 ℃.If necessary, accept surperficial zones of different and can be in different temperatures.For example, accept surperficial first area and can be in the temperature higher than second area.

May accept preferably that the surface scribbles or scribble releasing agent at least in part or other coatings, for example plasma coating or polishing finish.Described coating and releasing agent are described in the above.If described acceptance surface scribbles or partly scribbles releasing agent, the adherence of then not only accepting the surface and extruding between the particle reduces, described to extrude particle easier in the disengagement of described acceptance surface thereby make, and extrude particle and the surface tension accepted between the surface also is improved, extrude particle and to accept contact area between the surface thereby reduce, consequently, extrude particle in subglobular more in shape.

The adding of gas

Gas is added in the liquid by any suitable means.Gas is attached to and occurs in described mixture in the described mixture and be extruded through before the described aperture, simultaneously or afterwards.Preferably gas before pushing through rotation extrusion board aperture, is added in the described mixture in described mixture.

In described mixture, add gas and cause described mixture foaming.

Usually this is that described gas is introduced in the described mixture with physics and/or chemical method.

Preferable methods is:

(a) gas injects (dry method or wet method), randomly under mixing, and high shear mixing (dry method or wet method), the dissolving of gas and release comprise diffusion (dry method or wet method), for example injection of supercritical fluid of compressed air of critical gas; And/or

(b) chemical original position gas generates, and typically by the chemical reaction of one or more compositions, comprises by effervescent system producing carbon dioxide; And/or

(c) water vapour foaming, ultraviolet irradiation solidify.

This gas preferably comprises carbon dioxide, nitrogen or their combination, for example air.This gas also can be Compressed Gas, for example supercritical fluid.

If described gas was attached to before mixture is extruded by aperture in the described mixture, then preferably, if this gas forms bubble in described mixture, then these bubbles will be extruded the aperture that passes through less than mixture.

Foam formation

Foam formation is to accept the surperficial formation of going up by mixture is expressed into via the aperture that rotates extrusion board.With regard to the typical case, allow foam formation be formed on the acceptance surface as extruding particle.

This extrudes particle can be liquid, and for example drop perhaps also can be solid particle, for example bead or tablet.Preferably to extrude particle be solid and typically form after accepting dry tack free by extruding liquid.

This foam formation can stand the processing of further procedure of processing.For example, foam formation can be transferred to the fluid bed from accepting the surface, and is dry then.The representative temperature of this kind fluidized bed drying step is between 40 ℃～80 ℃, preferred 40 ℃～60 ℃.

Foam formation is sphere or almost spherical preferably.This accept under the situation that the surface scribbled or partly scribbled releasing agent such as silicone oil especially true.

Inject the gas of described mixture, particularly ought be in compressive state, for example during supercritical fluid, can in extruding particle, change back to gaseous state, thereby in extruding grain structure, stay hole or crack.This is the pith of foaming process.Preferably this mixture was in high temperature or high pressure before extruding.Under such condition, gas can be in compressed format or supercritical fluid state.After the extrusion step, extruded particle and can be in lower temperature and/or pressure by what the mixture of extruding formed, environmental condition for example is so gas changes back to gaseous state and makes the extrudate foaming.This foaming step can occur in and accept on the surface.

Foam formation is meant a kind of like this " component " here, and it generally comprises active component, matrix and cosolvent.Below described active component, matrix and stabilizing agent will be described in more detail.

Described component is preferably water dispersible here, hydrolyzable or water-soluble.Preferred water dispersible goods have at least 50% here, preferably at least 75%, or even at least 95% decentralization, by following described method, adopt the glass filter of maximum diameter of hole 50 μ m to measure; More preferably the goods here are water solubles or hydrolyzable, and have at least 50%, preferably at least 75%, or even at least 95% solubility or degree of hydrolysis, by following described method, adopt the glass filter of maximum diameter of hole 20 μ m to measure, that is:

Be the gravimetric analysis method that is used for determining component water solubility, degree of hydrolysis or moisture divergence below:

With 50g ± 0.1g this paper goods, add in the 400mL beaker of weighing in advance, add 245mL ± 1mL distilled water then.It is placed on vigorous stirring 30min on the magnetic stirrer that is set in 600rpm.Then, allow goods-mixture filter by the qualitative sintered glass paper folded filter of aperture such as top regulation (maximum 20 or 50 μ m).Utilize any conventional method from the filtrate of collecting, to remove moisture, determine the weight (that is dissolving,, hydrolysis or dispersion part) of residue goods part.Then, can calculate % solubility, degree of hydrolysis or decentralization.

Here the typical use of component is a release of active ingredients in aqueous environment.So component of the present invention and its matrix preferably should be unsettled when contact water.When this kind of generation was unstable, the active component or its part that are present in this component were discharged into liquid, preferably are discharged in the aqueous environment, for example in the water.Rotten, decomposition that preferred this component or its part take place preferably is dispersed or dissolved in the liquid, preferably in aqueous environment, more preferably in water.Preferably this active component is discharged in the water rapidly, and this component can disperse or dissolve rapidly; At least the 10wt% of preferred these goods, just dissolving or dispersion in the 30min after described component touches water, perhaps more preferably, at least 30% or even at least 50%, or even at least 70% or even at least 90% (being incorporated in the water) dissolving or disperse with 1wt% concentration.May be more preferably, this occur in that this component touches after the water in the 20min or even 10min in or even 5min in.Dissolving or the mensuration of disperseing can adopt before this to be implemented about the described method of dissolving, decomposition and dispersion of measuring component of the present invention.

The cumulative volume of preferred this component can change, and preferably is reduced by at least 10% than initial cumulative volume, for example, and with 1cm ³This component joins in the 100mL deionized water, measures after 25 ℃ temperature stirring 5min with 200rpm immediately then.The variation of preferred cumulative volume, perhaps preferably reduce, at least be for example 20% or even at least 40% or even at least 60% or even at least 90% or even about 100% because may preferably whole basically this component all decompose rapidly, disperse or preferably be dissolved in the water.

This can adopt any method known in the art to measure, and especially adopts method as described below (two dipping technique) here:

Get 1cm ³Elastic article places the little capacity graduated cylinder of 100mL, injects the organic atent solvent of 50mL ± 0.1mL in advance in the tube.For example, if find polymeric material in this elastic article matrix, for example when it is PVA, both consistency and/or also not with the interactional words of acetone, then use acetone.Other neutral organic medias also can be selected for use according to the character of research goods; Atent solvent should satisfy described component basically not by this dissolution with solvents, dispersion, decomposition or sex change.

With the graduated cylinder sealing gland and leave standstill 1min, solvent is penetrated in the whole component.Measure Volume Changes and it is used as the initial volume V of foam sample _iThen, from solvent, take out this component, and be placed on air drying, make solvent evaporates.

Then this component is placed in the beaker that 250mL is equipped with the 100mL deionized water, maintains 25 ℃, and stir 5min with 200rpm with magnetic stirrer.Filter the residue of this component sample with the copper funnel of 60mm mesh, if any, be placed in the baking oven of uniform temperature dry a period of time then to remove residual water.With dried residue goods, place graduated cylinder once more, wherein the volume of acetone readjusts 50mL in advance.Monitor the increase of cumulative volume, and it is used as the final volume V of component _fThe minimizing Δ V of this component sample cumulative volume just equals: $\%\mathrm{\ΔV}=\frac{\mathrm{Vf}}{\mathrm{Vi}}*100$

The relative density ρ of this component ^*Preferably between 0.01～0.95, more preferably 0.05～0.9 or even 0.1～0.8 or even 0.3～0.7.Relative density is density of fraction (ρ ^*) be used to form the branch density sum (ρ of all bulk materials of this component _s) between ratio.

Here used preferred foams component be air-stable or be stable when touching air, be meant that here the cumulative volume of this component or its matrix remains unchanged in being exposed to air the time basically.Specifically, this means, when uncovered beaker (the 9cm diameter of this component in the incubator of the condition of controling environment (humidity=RH60%, temperature=25 ℃); Without any protective layer) in when storing 24h, keep preferred 75%～125% or even 90%～110% or even 95%～100% of its cumulative volume.Preferably, this component under above storage requirement but wherein humidity is 80% o'clock, keeps 75%～125% of its cumulative volume, or even 90%～110%, or even 95%～100%.

The available any conventional method of the variation of cumulative volume is measured.Can adopt a kind of digital image register system especially, it comprises a digital camera, is connected on the PC, and computer itself is equipped with the image analysis software of demarcation.Get 1cm ³Product sample, being placed on diameter is in the uncovered beaker of 9cm, stores 24h then under these conditions.Behind the 24h, measure size on all three-dimensionals with the graphical analysis register system.Each sample replication three times is calculated the long-pending percentage that changes of average overall.

Preferred this component satisfies following condition: when being in particle mean size and being equal to or less than the particle form of 2000 μ m, these particles still can keep 75%～125% of its cumulative volume, or even 90%～110%, or even 95%～100%.For example this can measure as follows: with this kind of 20g particle or comprise and surpass 500 weight, being placed on diameter is in the capacity analysis beaker of 9cm.Knock this beaker bottom gently, be distributed to settling position again, have the end face of level until particle self.Measure this volume.Then, the uncovered beaker that particle is housed is placed on carefully keeps 24h in the incubator, set desired relative humidity and temperature therebetween.Measure cumulative volume behind the 24h, calculate the variation percentage of cumulative volume then.

This component preferably comprises the active component that accounts for goods (by weight) at least 1%, and more preferably 5%～70%, more preferably 10wt% at least is more preferably from 15% or even 20% or even 25% to 50%.

This component preferably comprises (by weight) 10%～99% matrix, and more preferably at least 20% or even 30%～99%, more preferably 20% or 30%～90%～80%.

This component comprises (by weight) at least 1% stabilizing agent, more preferably from 5% or from 10%, or from 15% or from 20%, to 50% or to 40%, or to 30% or to 25%.

Matrix

The matrix of this component is referred to as " matrix " here, is made by a kind of polymeric material and preferably a kind of plasticizer usually.Below described polymeric material and described plasticizer will be described in more detail.

In matrix, preferred 1: 100 of the ratio of plasticizer and polymeric material, more preferably 1: 70 or 1: 50, more preferably 1: 30 or even 1: 20, specifically depend on the type of used plasticizer and polymeric material.For example, when polymeric material comprises PVA, and plasticizer comprises glycerine or glycerol derivatives and randomly during water, this ratio is preferably about 1: 15～1: 8, and preferred ratio is about 10: 1.

Here matrix also can comprise the active component of component here and/or the cosolvent of component here.Below described active component and described cosolvent will be described in more detail.Crosslinking agent, appropriate words also can add, to improve the character of matrix or made component.Borate may be useful in the matrix here.

Here the glass transition temperature of matrix (Tg) preferably is lower than 50 ℃, preferably is lower than 40 ℃, preferably is lower than 20 ℃ or even be lower than 10 ℃ or even be lower than 0 ℃.The Tg of preferred this matrix is higher than-20 ℃ or even be higher than-10 ℃.

When used herein, the Tg of matrix is the Tg that is present in the matrix in this component, therefore, it can be a kind of only be the mixture of polymeric material and plasticizer, it perhaps also can be the mixture of a kind of polymeric material, plasticizer, active component and/or stabilizing agent, and under any circumstance, also may there be optional supplementary element (for example stabilizing agent, compact agent, filler, lubricant etc. are as mentioned below).

Here used Tg is according to textbook " dynamic mechanical analysis " (pg 53, and Fig. 3 .11c on the pg 57), being defined as certain material (matrix) is rubbery state from glassy transition, that is, when strand obtains to be enough to the activity of slippage each other, the temperature of this material (matrix).

The Tg of the matrix of component of the present invention can abide by the guide of this equipment operation manual and measure on Perkin-Elmer DMA7e equipment, the result produces one as " dynamic mechanical analysis " book, and pg 57, the curve that provides among Fig. 3-11c.Tg is as stipulating in this book, the temperature between glassy state and " like the leather zone " that obtains with this measuring apparatus, or the common logarithm of frequency.

This matrix, and preferably whole this component have certain elasticity and flexibility because of having the particular glass transition temperature.Specifically, this means, the reversibly deformation of this matrix and component, thus absorption is impacted or the energy of power, makes this component or matrix keep its original cumulative volume basically after physical force no longer acts on this component.

Elasticity can be by this matrix, or even the elastic modelling quantity of this component determine, can determine by Young's modulus again.This available stress-strain mechanical test known in the art is calculated, and for example, adopts Perkin-Elmer DMA 7e equipment, and the experimental arrangement of abideing by producer promptly, is tested in 10～40% static strain scopes in specific % static strain scope.This represents the maximum strain that a kind of normal manufacturing or operating period may apply.Therefore, the elastic modelling quantity of defined is the maximum modulus of measuring in 10%～40% static strain scope with this equipment here.For example, in the test that this equipment of use carries out, can use 1cm ³A matrix (or this component).

Here the elastic modelling quantity of matrix or Young's modulus are generally less than 4GN.m ^-2, or be generally less than 2GN.m ^-2, even be more preferably less than 1GN.m ^-2, but representative value even less than 0.5GN.m ^-2Or even less than 0.1GN.m ^-2Or even less than 0.01GN.m ^-2, press Perkin-Elmer DMA7e measuring apparatus.Particularly, comprise the matrix of bubble here, for example adopt to be included in that the method for introducing gas in the matrix makes, its elastic modelling quantity is lower than 0.1GN.m ^-2Or even 0.01GN.m ^-2Or even be lower than 0.005GN.m ^-2Or even be lower than 0.0001GN.m ^-2

Preferred this matrix is flexible, thereby has greater than 2%, is preferably greater than 15% or even greater than 50% relative yield strain, as Perkin-Elmer DMA7e measuring apparatus.(ultimate deformation when yield strain is a matrix generation non-reversible deformation in this mensuration).

Specifically, this means, when having length-specific, for example the matrix sample in the cross section of 1cm be subjected to executing along this cross-sectional axis the static(al) compression time, this static(al) is variable but be equivalent to the twice of atmospheric pressure at least, after this power is removed, this length be changed at least 90% of former length～110%.For example this can adopt Perkin-Elmer DMA7e measuring apparatus.

Similarly, the pliability of preferred this paper matrix reaches such degree, so that when having length-specific, when for example the matrix sample in the cross section of the 1cm static(al) that is subjected to applying along this cross-sectional axis stretches, this static(al) is variable but be equivalent to the twice of atmospheric pressure at least, after this power is removed, this length be changed at least 90% of former length～110%.For example this can adopt the Perkin-ElmerDMA7e measuring apparatus.

Specifically, when this equipment of use, along 1cm ³The static(al) that the matrix sample cross-sectional axis applies progressively increases, and deformation reaches 70% on this component this direction in the cross section.Then, remove this power, and measure the final deformation of matrix sample on cross-wise direction.Behind the optimization experiment, this length in cross section preferably the former length in cross section 90%～110%, preferred 95%～105% or even 98%～100%.

Elastic modelling quantity or Young's modulus are relevant with relative density, that is, $\frac{E^{*}}{E_s}\≈{\left(\frac{{\mathrm{\ρ}}^{*}}{{\mathrm{\ρ}}_s}\right)}^2,$ ρ wherein ^*Be matrix or even the relative density of this component, ρ _sBe in matrix as described below or this component each minute component relative density, E ^*Be matrix or even the Young's modulus of this component itself, and E _sBe matrix or even this component in each minute component Young's modulus.This means, even have high E _sRigid polymer material, also can be by regulating plasticizer dosage and/or type and randomly changing density (or, for example, as mentioned below) and become elasticity, flexible matrix by introducing gas during manufacture to form foam formation.

This matrix, or even whole this component, be in form of foam, preferably it forms the internet of a kind of perforate and/or closed pore, particularly the network of being made up of the solid skeletal and the hole wall plate of edge that forms perforate and/or closed pore and face.Space in the hole can comprise part active component and/or gas, for example air.

In the matrix or whole this component of preferred this component, the ratio of closed pore and perforate is greater than 1: 1, is preferably greater than 3: 2 or even greater than 2: 1 or even greater than 3: 1.This ratio can obtain by following method: calculate the cumulative volume of the sample of this matrix or component, V _T, (supposition is spherical) adopts the mercury porosity test method to measure open volume (V then ₀), from cumulative volume, deduct open volume then, draw closed pore volume (V _C: V _T=V ₀+ V _C).

Polymeric material

Any polymeric material all can be used to form the matrix here, and preferably this polymeric material itself has aforesaid Tg, and perhaps more typically, it can form a kind of matrix with above-mentioned Tg by using an amount of plasticizer.

Preferred this polymeric material comprises amorphous polymer or is made up of it.

Polymeric material can be made up of the homopolymers of single type, perhaps also can be the mixture of multiple polymers.Polymeric blends is particularly advantageous in the mechanics and/or the dissolution properties of this component of control, specifically depends on its purposes and requirement thereof.

Preferred this polymeric material comprises a kind of water dispersible, or more preferably, water-soluble polymer." water dispersible and water soluble " defines according to the water solubility of determining component of the present invention and the method for moisture divergence generally as previously described.Here preferred water dispersible polymer has at least 50%, preferred at least 75% or even at least 95% decentralization, adopt the glass filter of maximum diameter of hole 50 μ m to measure according to the method for stipulating previously; More preferably, the polymer here is a water-soluble polymer, and its solubility is 50% at least, preferably at least 75% or even at least 95%, adopt the glass filter of maximum diameter of hole 20 μ m to measure according to the method stipulated previously.

This polymer can have any mean molecule quantity, preferably from about 1000～1,000,000 or even from 4000～250,000, or even from 10,000～200,000 or even from 20,000～75,000.Highly preferred may be weight average molecular weight between 30,000～70,000 polymeric material.

The required character of component can be regulated polymeric material according to the present invention.For example,, can in this material, introduce high molecular weight polymers for reducing solubility, generally be higher than 50,000 or even be higher than 100,000, vice versa.For example, solubility for a change can be used the polymer of different degree of hydrolysis.For example, for improving (reduction) elastic modelling quantity, can improve the degree of cross linking of polymer and/or improve molecular weight.

May have a kind of miscellaneous function by the preferred employed polymer of component here, for example a kind of preparation comprises the function that possesses in the composition of this component.Therefore, for example, as cleaning products, the polymer in the polymeric material is that a kind of dye transfer inhibiting polymers, dispersant and so on are useful.

Be preferably selected from following polymer: polyvinyl alcohol and derivative thereof, polyethylene glycol and derivative thereof, PVP and derivative thereof, cellulose ether and derivative thereof and these polymer each other or with the copolymer of other monomers or oligomer.It is most preferred that PVP (and derivative) and/or PEG (and derivative), most preferably the mixture of PVA (and derivative) or PVA and PEG and/or PVP (or derivatives thereof).Very preferably also may be the polymeric material that only comprises PVA.Preferred this base polymer has at least 50%, and more preferably at least 70%, or even 85%～95% degree of hydrolysis.

Plasticizer

Any plasticizer as long as be fit to the formation of the matrix of promotion this paper regulation, all can use.The mixture of plasticizer also can use.Preferably when water, also there is another kind of plasticizer.

At least a in preferred this plasticizer or the plasticizer has and is higher than 40 ℃ boiling point, preferably is higher than 60 ℃, or even be higher than 95 ℃, or even be higher than 120 ℃, or even be higher than 150 ℃.

Preferred plasticizer comprises glycerine, ethylene glycol derivative, comprise ethylene glycol, oligomeric polyethylene glycol such as diethylene glycol (DEG), triethylene glycol and tetraethylene glycol, weight average molecular weight M.W. is lower than 1000 polyethylene glycol, wax and chloroflo, the ethanol acetamide, the ethanol formamide, triethanolamine or its acetic acid esters, and ethanolamine salt, sodium sulfocyanate, ammonium thiocyanate, polyalcohol is as 1, the 3-butanediol, sugar, sugar alcohol, urea, dibutyl phthalate or dimethyl ester, contain the acid of oxygen list, contain the oxygen diacid, diglycolic acid, and along distributing other line style carboxylic acids of at least one ether of strand, water and composition thereof.

The preferred amount of plasticizer is the 0.5wt% of goods at least, and preferably by the weight of matrix, condition is, when water was unique plasticizer, it existed with the amount of the 3wt% at least of goods, or preferably by matrix weight.

Preferred plasticizer exists with the amount of goods or matrix 1%～35wt%, more preferably 2%～25% or even reach 15% or even reach 10% or even reach 8%, by product weight or by matrix weight.Definite addition will depend on used polymeric material and plasticizer, but should satisfy, and the matrix of goods has the Tg of requirement.For example, when using urea, its consumption is 1%～10wt% of matrix preferably, and when using glycerine or ethylene glycol or other diol, derivatives, may preferred higher dosage, for example 2%～15wt% of goods or matrix.

Active component

Active component can be that any preparation is discharged into liquid environment, the perhaps material that preferably goes in the aqueous environment, and preferably in aqueous environment, have active composition.For example, when being used for Cleasing compositions, this component can comprise any active cleansing.This component also can comprise composition, for example Cleasing compositions or personal care composition.

Especially advantageously in this component, add a kind of wet sensitivity or the active component that can react during the contact moisture, perhaps have the finite impulse fastness and easily form the solid constituent of dust during operation.Particularly, the preferred active component that exists such as following material in this component: enzyme, spices, bleaching agent, bleach-activating, fabric softener, fabric conditioner, surfactant such as liquid nonionic surface active agent, conditioning agent, antiseptic, fluorescent whitening agent, light-bleaching agent and their mixture.

Another kind of active component is the perhydrate bleaching agent, as metal perborate, metal percarbonate, especially sodium salt.Preferred active component also has organic peroxide acid bleach precursor or activator compound, and preferred imide-type alkyl peroxycarboxylic acid precursors compound comprises N-, N, N ¹N ¹Tetrem acidylate Alkylenediamine; wherein alkylidene group comprises 1～6 carbon atom; especially those its alkylidene groups comprise the compound of 1,2 and 6 carbon atom; tetra acetyl ethylene diamine (TAED), 3 for example; 5; 5-trimethyl acetyl oxygen base benzene sulfonic acid sodium salt (different-NOBS), acyloxy benzene sulfonic acid sodium salt in the ninth of the ten Heavenly Stems (NOBS), acetoxyl group benzene sulfonic acid sodium salt (ABS) and pentacetylglucose, but the alkyl peroxy acids precursor compound that also has acid amides to replace.

The active component that highly is preferred in this paper component is one or more enzymes.What preferred enzyme comprised available commercial adds lipase, cutin enzyme, amylase, neutrality and alkali protease, cellulase, endolase, esterase, pectase, lactalase and peroxidase in the composition of detergent traditionally.

Suitable enzyme is at United States Patent (USP) 3,519, discusses in 570 and 3,533,139.Preferred commercially available protease comprises: those of trade name Alcalase, Savinase, Primase, Durazym and Esperase, produce by Novo industrial group (Denmark); Trade name Maxatase, those of Maxacal and Maxapem are produced by Gist-Brocades; Those that produce by Genencor international corporation; And sell with trade name Opticlean and Optimase by Solvay Enzymes company those.Preferred amylase comprises that for example, the AMS by special bacterial strain Blicheniformis produces describes in greater detail at GB-1, among 269,839 (Novo).Preferred available commercial amylase comprises, for example, by Gist-Brocades by those of trade name Rapidase supply, and sell by trade name Termamyl, Duramyl and BAN by Novo industrial group those.Highly preferred amylase may be those described in PCT/US 9703635 and WO 95/26397 and the WO 96/23873.Lipase can fungi or the form of bacterial origin obtain, for example can be by the bacterial strain that produces lipase: humicola lanuginosa bacterial classification, high temperature mould species or pseudomonad kind comprise that pseudomonas pseudoalcaligenes or Pseudomonas fluorescens produce.Here also can use by the lipase of this class bacterial strain through the saltant generation of chemical method or genetic method modification.A kind of preferred lipase is derived by pseudomonas pseudoalcaligenes, is described among the European patent EP-B-0218272 that authorizes.The preferred here lipase of another kind is to dredge wool detritus mould gene by cloning, and this gene expression is obtained in the aspergillus oryzae host, be described among European patent application EP-A-0258 068, by (the Bagsvaerd of Novo industrial group, Denmark) available commercial, commodity are called Lipolase.This lipase also is described in people such as Huge-Jensen, in the United States Patent (USP) 4,810,414 that 1989-03-07 delivers.

Preferred supplementary element

Component of the present invention preferably comprises the supplementary element that can improve this paper goods dissolution properties.

The supplementary element that preferably improves the dissolving of this paper goods preferably comprises: sulfonated compound, for example C ₁～C ₄The basic sulphonic acid ester of alkane (alkene), C ₁～C ₄Aromatic yl sulphonate, diisobutyl benzene sulfonate, tosylate, cumene sulphonic acid ester, xylene sulfonate, their salt such as sodium salt, their derivative or their combination, preferred diisobutyl benzene sulfonate, toluenesulfonic acid sodium salt, cumene sodium sulfonate, sodium xylene sulfonate and their combination; And/or C ₁～C ₄Alcohol is as methyl alcohol, ethanol, propyl alcohol such as isopropyl alcohol, and their derivative, and their combination, preferred alcohol and/or isopropyl alcohol; And/or C ₄～C ₁₀Glycol such as hexylene glycol and/or cyclohexane diol, preferred 1,6-hexylene glycol and/or 1,4-cyclohexanedimethanol; And/or can play the composition of wicking agent effect, as cellulose base composition, especially modified cellulose; And/or sweller such as clay, preferred clay is a terre verte, especially dioctahedron or trioctahedron type terre verte, highly preferred clay are montmorillonitic clay and HECTABRITE DP or other clays of existing with the POLARGEL NF form; And/or effervescent system, preferred effervescent system comprise can with in the presence of water, the react acid source of generation gas of alkali source.

Component of the present invention preferably comprises the supplementary element that can improve this paper goods active component stability.

These supplementary elements generally can be stablized the active component of this paper component, and this comprises oxidisability or wet sensitive active ingredients at active component, and is especially preferred during as one or more enzymes.This type of supplementary element also can be stablized the matrix of this paper component, thus stabilizing active ingredient indirectly.This type of stable elements is defined as " stabilizing agent " here.

The compound that preferably a kind of lay up period energy stabilizing active ingredient of stabilizing agent or matrix exempt from oxidation and/or make moist and degrade.Stabilizing agent can be or comprise the foam base plate stabilizing agent.Stabilizing agent can be or comprise active component stabilizing agent, particularly enzyme stabilizers.Thereby can be referred to as " foam stabiliser " here by the stable stabilizing agent of stabilizing active ingredient indirectly of the foam matrix that keeps goods.

Foam stabiliser preferably comprises surfactant, for example fatty alcohol, aliphatic acid, alkanolamide, amine oxide or derivatives thereof, or their combination.Foam stabiliser can comprise betaine, sulfobetaines, phosphine oxide, alkyl sulfoxide, and their derivative, or their combination.

Other preferred foam stabilizing agents comprise one or more anion or cation as single-, two-, three-valency or other polyvalent metal ions, the salt of sodium, calcium, magnesium, potassium, aluminium, zinc, copper, nickel, cobalt, iron, manganese and silver preferably, preferably have anion counter ion sulfate radical, carbonate, oxygen, chlorine, bromine, iodine, phosphate radical, borate, acetate, citrate and nitrate anion, and their combination.

Foam stabiliser can comprise the particle of fine dispersion, and preferred average particle size is more preferably less than 1 μ m less than 10 μ m, even is more preferably less than 0.5 μ m, or less than the fine dispersion particle of 0.1 μ m.Preferred fine dispersion particle is an aluminosilicate, for example the electrolyte of zeolite, silica or fine dispersion particle form described above.

Foam stabiliser can comprise agar, sodium alginate, lauryl sodium sulfate, PEO, guar gum, polyacrylate or their derivative, or their combination.

Foam stabiliser can be the coating that the matrix with this paper goods separates.Foam stabiliser generally partly preferably fully wraps up this paper goods or its active component.

This coating is contact active component earlier before the polymeric material of described active component contact matrix or plasticizer generally, preferably contacts in the mode that forms coating on the active component surface, and preferred combination is advanced in this paper goods.

This coating generally can preferably after active component contacts described matrix or is attached in this paper goods, contact this paper goods in the mode that forms coating on goods after polymeric material and plasticizer formation matrix.

Preferred coating comprises polymer, typically be selected from polyvinyl alcohol and derivative thereof, polyethylene glycol and derivative thereof, PVP and derivative thereof, cellulose ether and derivative thereof, and these polymer each other or with the copolymer of other monomers or oligomer.Most preferably PVP (and derivative) and/or PEG (and derivative), the very preferably mixture of PVA (and derivative) or PVA and PEG and/or PVP (or derivatives thereof).These polymer do not form the matrix of this paper goods.Therefore, these polymer are different from the polymeric material of foam base plate.

Preferred coating comprises following compound, for example: glycerine, ethylene glycol derivative, comprise ethylene glycol, low polyethylene glycol such as diethylene glycol (DEG), triethylene glycol and tetraethylene glycol, weight average molecular weight M.W. is lower than 1000 polyethylene glycol, wax and chloroflo, the ethanol acetamide, the ethanol formamide, triethanolamine or its acetic acid esters, and ethanolamine salt, sodium sulfocyanate, ammonium thiocyanate, polyalcohol is as 1, the 3-butanediol, sugar, sugar alcohol, urea, dibutyl phthalate or dimethyl ester, contain the acid of oxygen list, contain the oxygen diacid, diglycolic acid, and along distributing other line style carboxylic acids of at least one ether of strand, water and composition thereof.These compounds do not form the foam base plate of this paper goods.Therefore, these compounds are different from the plasticizer of foam base plate.

Directly the preferred stabilizer of stabilizing active ingredient especially when described active component comprises one or more enzymes, is defined as " active stabilizer " or " enzyme stabilizers " here.Typical active stabilizer and active component direct interaction also make it stable.

Typical activity stabilizing agent used herein preferably comprises a kind of surfactant.The surfactant that is applicable to this is aforementioned those of matrix stabilizing agent of being suitable as.Except these surfactants, other are adapted at surfactant used herein and can comprise such as following surfactant: the basic sodium sulfonate of alkane (alkene), alkoxyl sodium sulfonate, preferred alkoxyl sulfonate is to comprise 10～18 carbon atoms, no matter which kind of configuration, preferred line style also has 1～7, those of preferred 2～5 average degree of ethoxylation.

Other preferred active stabilizers comprise boric acid, formic acid, acetate and their salt.These sour salt preferably comprise the counter ion such as calcium and/or sodium.

Preferred active stabilizer comprises the cation of calcium and/or sodium and so on.Preferably calcium chloride and/or sodium chloride.

Other preferred active stabilizers comprise average out to 3～20, preferred 3～10 amino acid whose little peptide chains, and these little peptide chain and active component, especially enzyme interactings also make it stable.

Other active stabilizers comprise the small nucleic acids molecule, generally comprise 3～300, preferred 10～100 nucleotides.Typical nucleic acid molecules is DNA and ribonucleic acid.This nucleic acid molecules can be in the composite form with other molecules such as protein, perhaps can form composite form with the active component of this paper goods, especially enzyme.

Be fit to active stabilizer used herein, especially when this paper goods comprise bleaching agent, comprise antioxidant and/or reducing agent such as thiosulfate, methionine, urea, thiourea dioxide, guanidine hydrochloride, guanidine carbonate, Guanidine Sulfamate 99, monoethanolamine, diethanol amine, triethanolamine, amino acid such as glycine, sodium glutamate, protein such as bovine serum albumin(BSA) and casein, tert-butyl group hydroxy-methylbenzene, 4-4,-Ding fork two (the 6-tert-butyl group-3-methyl-phenol), 2,2 '-Ding fork two (the 6-tert-butyl group-4-methylphenol), (styrene cresols, talan cresols, one styrenated phenol, talan phenol, 1, two (4-hydroxyphenyl) cyclohexanes of 1-, or their derivative, or their combination.

Other active stabilizers can comprise the reversible inhibitor of active component.Do not intend being limited to theory, but it is believed that the reversible inhibitor of active component, especially when active component comprises one or more enzymes, can form complex compound and improve its stability, thereby make active component keep stable at lay up period with described active component.When active component discharges, be discharged in typical case in the liquid environment, reversible inhibitor just dissociates from active component, so active component just can be realized the required effect that designs or intend realizing.

Be applicable to that the active stabilizer here comprises sugar.Typical steamed bun stuffed with sugar used herein is drawn together and is selected from sucrose, glucose, fructose, melitriose, trehalose, lactose, maltose, their derivative and those of their combination.

Active stabilizer also can comprise sugar alcohol such as D-sorbite, mannitol, inositol (inose), their derivative and their combination.

May be preferably, active stabilizer is taked coating or barrier layer form, wraps up this paper goods or its active component at least in part, preferably wraps up this paper goods or its active component, especially enzyme fully.

Embodiment

Embodiment 1

The method for preparing foam formation

The solution of 4700g 33wt% polyvinyl alcohol (weight average molecular weight is between 30000～70000) is mixed in high shear mixer with 159.3g glycerine and 19.8g citric acid, until forming fine and smooth foams.This mixture is transferred to head tank, and the commodity that utilize gear pump to be pumped into the supply of SandvikConveyor GMBH company are called in the drum of Rotoform.Have the aperture of size 1000 μ m spacings 2500 μ m on this drum.This perforated drums is positioned at the top of a ganoid drum, and beeline apart (distance between the nearest neighbor point) is 1000 μ m.Perforated drums is rotated with 15rpm, and the aperture arrival that the while mixture is crossed perforated drums by force feed is heated to 30 ℃, scribbles on the smooth surface drum of silicone oil, forms on described smooth surface drum and expects ingot.When 1/4th quilting ingots of smooth surface drum cover, stop to extrude processing, make the material ingot dry in the hot-air of 70 ℃ of temperature, feel dry and comfortable until the material ingot surface.The siccative ingot of making scrapes and collects from the smooth surface drum.

Embodiment 2

The method for preparing foam formation

The solution of 4700g 33wt% polyvinyl alcohol (weight average molecular weight is between 30000～70000) is mixed in high shear mixer with 3360g enzyme solutions (5wt% organized enzyme and 85wt% water), 159.3g glycerine and 155g cyclohexanedimethanol, until forming fine and smooth foams.This mixture is transferred to head tank, and the commodity that utilize gear pump to be pumped into the supply of Sandyik Conveyor GMBH company are called in the drum of Rotoform.Have the aperture of size 1000 μ m spacings 2500 μ m on this drum.This perforated drums is positioned at the top of a ganoid drum, and beeline apart (distance between the nearest neighbor point) is 1000 μ m.Perforated drums is rotated with 15rpm, and the aperture arrival that the while mixture is crossed perforated drums by force feed is heated to 30 ℃, scribbles on the smooth surface drum of silicone oil, forms on described smooth surface drum and expects ingot.When 1/4th quilting ingots of smooth surface drum cover, stop to extrude processing, make the material ingot dry in the hot-air of 70 ℃ of temperature, feel dry and comfortable until the material ingot surface.The siccative ingot of making scrapes and collects from the smooth surface drum.

Embodiment 3

The method for preparing foam formation

Prepare 4000g solution by following program: 1464.0g polyvinyl alcohol (weight average molecular weight is between 30000～70000), 2282.0g enzyme solutions (5wt% organized enzyme and 85wt% water), 150.4g glycerine and 103.6g sodium thiosulfate are mixed, until forming fine and smooth foams in high shear mixer.This mixture is transferred to head tank, and the commodity that utilize gear pump to be pumped into the supply of Sandvik Conveyor GMBH company are called in the drum of Rotoform.Have the aperture of size 300 μ m spacings 100 μ m on this drum.This perforated drums is positioned at the top of smooth surface steel conveyor belt.Perforated drums is rotated with 100rpm, and the aperture arrival that the while mixture is crossed perforated drums by force feed is heated to 30 ℃, scribbles on the smooth surface steel conveyor belt of silicone oil, forms the material ingot on described smooth surface band.When smooth surface steel conveyor belt total length when all the quilting ingot covers, stop to extrude processing, make the material ingot dry in the hot-air of 70 ℃ of temperature, feel dry and comfortable until the material ingot surface.The siccative ingot of making scrapes and collects from the smooth surface band.

Embodiment 4

The method for preparing foam formation

Press embodiment 3 described preparation 4000g solution, different is that carbon dioxide is advanced in dissolving in solution.The dissolving of this carbon dioxide is to implement like this: described solution is put into the 10L pressure vessel, and injecting carbon dioxide gas reaches 1.0bar until pressure in pressure vessel then.This moment, stop feed carbon dioxide, wait for that then pressure vessel and content thereof reach dissolution equilibrium.Utilize gear pump that this mixture directly is pumped into the drum of commodity Rotoform by name of SandvikConveyor GMBH company supply from pressure vessel.Have the aperture of size 300 μ m spacings 100 μ m on this drum.This perforated drums is positioned at the top of smooth surface steel conveyor belt.Perforated drums is rotated with 100rpm, and the aperture arrival that the while mixture is crossed perforated drums by force feed scribbles on the smooth surface steel conveyor belt of silicone oil, forms the material ingot on described smooth surface band.An opposite side that forms that side of material ingot at steel conveyor belt is sprayed cooling medium.The sprinkling of cooling medium causes being with temperature to maintain-10 ℃, thereby the material ingot is solidified immediately.Take off the material ingot from the smooth surface steel band, randomly by scraper.After taking off, the material ingot perhaps is transported in fluidized bed dryer/spreader similarly immediately by gravity fall, removes moisture at this.And then, can in this fluidized bed dryer/spreader, apply additional coatings.From fluidized bed dryer/spreader, take out the band coating material ingot of made drying.

Claims (15)

1. method for preparing foam formation, described method comprises the aperture of viscous mixture by the rotation extrusion board is expressed into the step of accepting the surface, wherein before described viscous mixture pushes through described aperture, simultaneously or afterwards a kind of gas is added in the described viscous mixture.

2. the method for claim 1, by the viscosity of the described viscous mixture of this method between 25mPa.s～20000mPa.s, preferred 50mPa.s～10000mPa.s.

3. the method for above any one claim, by the beeline between described extrusion board of this method and the described acceptance surface between 50 μ m～3000 μ m.

4. the method for above any one claim, by the size of the described aperture of this method between 50 μ m～3000 μ m.

5. the method for above any one claim, by the water content of the described viscous mixture of this method between 0.1wt%～80wt%, preferred 60wt%～80wt%.

6. the method for above any one claim is passed the flow direction of described rotation extrusion board aperture perpendicular to thick liquid by the direction of rotation of this method rotation extrusion board.

7. the method for above any one claim comprises by the described viscous mixture of this method and to be selected from one of polymeric material, plasticizer, active component and their combination, and preferably comprises and be selected from one of cosolvent, stabilization aid or their combination.

8. the method for above any one claim pushes through described aperture by the described viscous mixture of this method with 0 ℃～50 ℃ temperature.

9. the method for above any one claim is rhombus, square or circular, perhaps triangle, preferably rhombus by the shape of the described aperture of this method.

10. the method for above any one claim comprises carbon dioxide, nitrogen or their combination, for example air by the described gas of this method.

11. the method for above any one claim, with 1rpm～1000rpm, preferred 10rpm～200rpm rotates, and the tip speed of described rotation extrusion board is between 0.1ms by the described rotation extrusion board of this method ^-1～1600ms ^-1

12. the method for above any one claim, by the described acceptance of this method surface and/or described rotation extrusion board top scribble releasing agent.

13. the method for above any one claim, wherein said foam formation are water-soluble or water dispersible.

14. adopt the method preparation of above any one claim to be suitable for the foam formation of Cleasing compositions, Fabrid care composition, personal care composition, cosmetic composition, pharmaceutical composition application, preferably add the active component that is selected from enzyme, spices, surfactant, fluorescent whitening agent, dyestuff, foam inhibitor, bleaching agent, bleach-activating, fabric softener, antiseptic, effervescent system and their mixture therein.

15. the foam formation that can produce according to the method for any one in the claim 1～13.