CN1179136A - Exhausting device of ventilation system - Google Patents

Abstract

The present invention relates to a package, or a cap (10) for a package for containing viscous liquid products. The package or the cap comprises a venting means (20). Said venting means (20) allows passage of gases between the interior and the exterior of package when the pressure inside said package differs from the external ambient pressure. Said package or cap further comprises a means (30) which improves the drainage of the splashed product away from said venting means and back into said container.

Description

The remover of blow and vent system

Invention field

The present invention relates to the lid of container or container, it can make the flowing product ventilation of viscosity, and this container or lid can improve the eliminating of goods from the breather of container or lid.

Background of invention

It is well-known in packaging industry that the difference of pressure that exists between the inside and outside barometric pressure owing to airtight container makes the problem of container deformation.This container deformation for some container material for example some plastics or metal be irrecoverable, the thin-walled pressure vessel of partially flexible is responsive especially to this problem.

There are many possible factors can cause between said vesse inside and outside and have difference of pressure.For example, the inclusion in the container may chemically be unsettled, perhaps may react with the generation of gas that the container top space segment exists, and perhaps may react with container material itself under some particular case.Relate to any chemical reaction with fluid contents and can produce gas and make that pressure raises in the container, perhaps absorb some gas of head space part and make that pressure reduces in the container.

When the temperature when filling and airtight container significantly was different from the external temperature of shipment, transportation and lay up period, also the possibility build-up of pressure was poor between internal tank and external pressure.With the another kind possibility that at the different bar pressure of another bar pressure of diverse geographic location cartridge is the build-up of pressure difference.

Prior art has proposed the technical scheme of some employing valve systems, utilizes this valve system can avoid forming difference of pressure between the inside and outside portion of container.The technical scheme that proposes also relates to various aeration lids, and these lids can discharge the pressure that produces in the container by loss gas.For example French Patent (FRP) A-2259026, US Patent 4 136796 and Deutsche Reichspatent A-2 509258 disclose automatic ventilation cover plate, and this cover plate comprises a ventilated membrane, and this film covers and leads to exterior hole.This film adopts not liquid permeable but the material of porous gas is made.Thereby container can comprise the aperture that discharges gas to the outside, but do not reduce its leak tightness.Other example is European patent A-593840, this patent disclosure a kind of splendid attire produce the container of the liquid of pressure, this container is made with thermoplastic material, this material comprises a kind of meshwork with microchannel.This microchannel meshwork is breathed freely but liquid impermeable.

We find that if flowing product contacts the end of these films or microchannel, then part is lost its permeability to air to film to I haven't seen you for ages.In addition, have viscosity or to these films have certain affinity flowing product can not from film row from and make it return container.Therefore if above-mentioned film contacts with this goods, then by that part of film that goods covered that can not get rid of from film with the substantial loss aeration.Like this, container is just lost ventilation capacity.The forfeiture ventilation capacity just causes said vesse to form difference of pressure between inside and outside, and this difference of pressure makes this container deform again.

Because during the shipment of container and carrying, can rock the container of filling, so said products can be splashed on the film.We find that the goods splashing amount that takes place usually has been enough to destroy fully the ventilation capacity of said vesse during shipment and carrying.The another kind of mode that causes goods to contact with film is the contact that forms during being placed upside down container.We also find, for example resemble the evil that other blow and vent system such as valve also will be subjected to similar shortcoming.

Therefore the purpose of this invention is to provide a kind of container (10) of flowing product or the lid (10) of this container, this container or lid utilize breather (20) to make the goods ventilation, in case and goods contact with breather, also can make its ventilation by getting rid of described goods from breather.

Summary of the invention

The invention provides a kind of container (10) of flowing product or the lid (10) of this container.The viscosity of these goods is measured with the Brookfield fluid meter, rotating speed 60rpm (rev/min), be at least 5cps (centipoise) under the temperature of sounding rod 3 and 20 ℃.Container or lid can make the goods ventilation by breather (20).This breather can make gas circulate between the inside and outside portion of described container when the pressure in the container is different from external atmosphere pressure.This breather infiltration gas but impermeable said products in addition.Breather comprises outside face (22).Container or lid comprise device (30), and this device just can make goods get rid of from the outside face of this breather when contacting when said products in case with the outside face of described breather.

The accompanying drawing summary

Fig. 1 a and 1b have the container of prior art of breather or the section drawing of lid (part illustrates).

Fig. 2 a illustrates to improve from breather by the present invention and gets rid of the container (part illustrates) the embodiment of goods or the side cross-sectional view of lid, Fig. 2 b is a cross sectional elevation, Fig. 2 c～2f illustrates the section drawing of container in other embodiment of the present invention (part illustrates) or lid, these embodiments have been improved the eliminating of goods from the breather, and Fig. 2 g illustrates the lateral plan of the corresponding lid rising with it of container in one embodiment of the invention (part illustrates).

Fig. 3 a～3f illustrates the cross section of the possible remover in the additional Fig. 2 embodiment of the present invention and faces and lateral plan.

Fig. 4 a～4d illustrates the side cross-sectional view of the possible remover of when the breather horizontal arrangement is on container or lid the present invention.

Fig. 5 a and 5b illustrate the side cross-sectional view and the backplan of other possibility remover of the present invention when the breather horizontal arrangement is on container or lid.

Fig. 6 a and 6b illustrate the side cross-sectional view of other possibility remover of the present invention when the breather horizontal arrangement is on container or lid.

Fig. 7 a～7d illustrates the side cross-sectional view and the backplan of other possibility remover of the present invention when the breather horizontal arrangement is on container or lid.

Detailed Description Of The Invention

With regard to this paper, " vertically " is meant an orientation, residing plane when this orientation is in stand up position perpendicular to container, and for example breather can be configured on the sidewall of container or lid.So-called " level " is meant an orientation, and this orientation is parallel to (not favouring) residing plane when container is in stand up position, and for example breather etc. can be configured to be parallel to the roof of container or lid." well azimuth " is meant the orientation between level and the vertical orientation.

Hereinafter, accompanying drawing can relate to a part and the lid and the arbitrary member that is contained on this container of container.In fact, the present invention can be the part of lid, and this lid then can be connected on any container of filling gasifiable flowing product.Method of attachment between lid and container can be the capping plug of screw thread screw-in, quick-snap formula, overturn cover formula, plug-type or turret formula.

Describe below at first by means of Container Description Fig. 2 a, and then by means of lid.Under first kind of situation, Fig. 2 a illustrates the side cross-sectional view of container, and container (10) (only part illustrates) comprises hollow body (11).Fig. 2 b is the cooresponding cross sectional elevation of this container.Above-mentioned hollow body comprises roof (17), sidewall (18) and diapire (not shown among Fig. 2 a).This hollow body can hold any flowing product.Hollow body preferably has certain flexibility, so that can respond the pressure reduction that forms between internal tank and the bar pressure deformation takes place.The present invention also comprises the sack of for example being made by thin plastics.In addition, the suitable shape of container can comprise basically cylindrical shape, taper tubular, ellipse, square, rectangle or flat ellipse.

Above-mentioned hollow body should be suitable for sealing the flowing product inclusion that viscosity is at least 5CPS, and this viscosity is to be 3 at sounding rod, to measure under the condition of 20 ℃ of rotating speed 60rpm and temperature with the Brookfield fluid meter.As described below, flowing product also comprises paste, cream slurry, glue, emulsion and suspending fluid.For instance, these goods can comprise the household article such as cleaning agent, shampoo, bleaching agent, special-purpose beautification product, creme and toothpaste of washer solvent, crust and the family expenses of clothing for example or dish.According to the present invention, but the above-mentioned hollow body vaporization goods of receiving fluids also.For example, the gasification goods can be comprise bleaching agent particularly the liquid of peroxide bleaches wash and starch goods.The viscosity of said products is preferably between 200～5000cps, and is preferred between 500～1800cps, most preferred between 800～1600cps.Viscosity is herein measured under sounding rod 3, rotating speed 60rpm and 20 ℃ of conditions of temperature with the Brookfield fluid meter.

Represent that at Fig. 2 a lid (10) comprises roof (17) and sidewall (18) under the situation of side cross-sectional view of lid.As previously mentioned, Fig. 2 b is the respective cross-section front elevation of said vesse, and this lid can be connected on the aforesaid container with sealing means.In another preferred embodiment of the present invention, container or lid (10) can comprise an ejiction opening.Container or lid are preferably made by be combined to form laminate, laminated product or the co-extrusion pressure goods of plastics, metal, paper or these materials.These materials can also reclaim.The preferred material of making above-mentioned hollow body for example comprises polyethylene (high density or low-density), polyvinylchloride, polyester, polyethylene terephthalate (PET), can extrude plastics such as PET, polypropylene, polycarbonate and nylon.These plastics can use or be combined to form co-extrusion pressure goods, laminate or laminated product separately and use.

Another essential feature of said vesse or lid (10) comprises breather (20), and breather can make pressure and the external pressure force balance in the container.Thereby breather can avoid producing in the container overvoltage and negative pressure.In fact, breather can make the gas that goods discharge in the container spill into the outside, and vice versa.When container was in stand up position, breather was positioned at the top of container and is higher than the horizontal surface of the goods of adorning.In fact, cause the gas of overvoltage or negative pressure to accumulate in the upper area of container usually.Thereby this helps gas and flows to outside or inside.

Breather preferably includes at least one aperture (21) and an outside face (22).This aperture makes the inside and the external communications of container.Particularly, aperture (21) makes gas flow to the outside or make its counter-flow from the inside of container, make that the interior pressure of container keeps and external pressure is identical or remain on certain pressure, this pressure is lower than at least makes bottle that the pressure that significantly is out of shape take place.Little hole size should be suitable for the circulation of gas.Aperture is preferably justified, and its diameter is at least 0.5mm, preferably between 1～3mm.Those skilled in the art can selecting hole number so that reach sufficient airshed.

Outside face (22) is around the described aperture and be positioned between the inclusion and aperture (21) of inside at hollow body (11) of hollow body (11).This outside face liquid impermeable but infiltration gas.Therefore, outside face can form the liquid penetration barrier layer, allows gas to flow through again simultaneously.This outside face was 1 when crust, is liquid impermeable during preferably up to 500 millibars pressure reduction up to the pressure reduction between the inside and outside portion of hollow body.Outside face is flat surface from macroscopic view at least.Outside face can also comprise the net structure with microchannel, and it can infiltration gas but liquid impermeable, described in European patent A-593840.On this outside face macroscopic view can be undulatory, resemble serrated-surface, in the case, outside face is formed by some planes connected to one another that have different degree of dip with respect to horizontal direction.

Above-mentioned outside face is preferably made by a kind of film (22a), and hereinafter, term " outside face " is equivalent to " film ".This film preferably can form thin layer and be used to cover any material of aperture (21).This film also must be in response to little difference of pressure infiltration gas.Described film preferably is low to moderate 50 millibars at pressure reduction, more preferably allows gas to flow through when being low to moderate 5 millibars.The thickness of described film can be selected, but is preferably in the scope of 0.2～2mm.Described film consists essentially of any material that can form thin layer, for example plastics, paper or have finely porous metal.The preferred material that is used for described film comprises the cellular plastic film.The pore size of this film should make gas to circulate when hanging down pressure reduction, can form the liquid impermeability of height simultaneously again.Pore size is preferably in the scope of 0.1～5 μ m, more preferably in the scope of 0.2～1 μ m.Described film is preferably circle, but also can be other shape, and for example rectangle, triangle or other shape are so that make it be adapted to said vesse or lid and/or improve the attractive in appearance of container or lid itself.

The preferred microporous plastic film that is fit to this application is:

--non-woven plastic film, the particularly TYVEK that sells with trademark TYVEK by E.I.Du Pont Company (Du Pont Company), Style10 nonwoven, spunbond polyethylene film material, it is a kind of through the material of fluorohydrocarbon processing with acquisition height liquid impermeable;

--go up the acrylic copolymer of cast at non-woven supporting member (nylon or PET), it has the hydrophobic that the fluorine monomer post-processing forms, this material is sold by the Gelman Sciences company in No. 600, South Wanger Road street, U.S. MI48106 Michigan State Ann Arbor city, and its trademark is VERSAPOR.

The microporous membrane material of described diaphragm (22a) can be treated reducing its surface energy, thereby improve the close property of liquid of this membraneous material.Pack into when comprising the goods of surfactant component when container (10),, need reduce the surface energy of above-mentioned membrane material especially in order to improve the close property of liquid.In this case, the specific surface energy of described membrane material preferably should be lower than the specific surface energy of the goods that contain inhibiter, to reach complete basically non-leakage goods inclusion.

Fluorohydrocarbon is handled the yardstick that relates to microcosmic and the fluorohydrocarbon material is fixed on the surface of membrane material, and this processing is to form this special case that reduces the processing of surface energy.In fact, fluorohydrocarbon is handled the sensivity of microporous membrane material to being got wet by the flowing product inclusion that has reduced this diaphragm.Yet when being used to handle the microporous membrane material of above-mentioned film according to the present invention, this fluorohydrocarbon is handled the permeability to air that should not damage diaphragm.Being used for carrying out the possible fluorohydrocarbon material that fluorohydrocarbon handles according to the present invention is for example sold with trademark SCOTCHBAN by 3M company.

According to the present invention, diaphragm (22a) can be to keep its liquid impermeable any way of infiltration gas is applied to and the inside that is positioned at hollow body (11) between adorned liquid and aperture (21).Applying method comprises the use adhesives, or with the film heat-sealing zone around described aperture, or during mold container, for example adopt clamp, heat is dashed or this film of mechanical method fixation such as insertion.As previously mentioned, used applying method should significantly not damage the ventilation capacity of diaphragm.For this reason, any adhesives preferably also is breathable or the hole that can not stop up diaphragm.

Diaphragm (22a) also can be contained in the cover, size be particularly suitable for use in cover on container of the present invention or the lid can be from the Via Roma street the gondola Zola Predosa (BO) No. 50 GVS company bought.In highly preferred embodiment, the manufacturing of this cover and diaphragm (22) assembling in cover can be finished by " insert molding method ", in the method:

--a slice film is sent into a device; This sheet film preferably from one the volume membrane material on debatching get off;

--in this device, downcut at least one diaphragm from this sheet film, and this diaphragm is put into and will be formed the mould of described cover therein;

--then, cover comes molding basically around diaphragm, make diaphragm be fixed in this cover by this way." basically around ... on every side " in case mean and finish molding, this step will produce a cover that has the diaphragm that has assembled, and on this cover, two surfaces of diaphragm can ingress of air, but this diaphragm closely is fixed in the cover.

Can also use heat sealing method, ultrasonic sealing method or diaphragm (22a) is glued at and make cover in the cover.In addition, can also utilize mechanical means that diaphragm is fixed between two discrete items and make cover, thus these two are clamped together.

As mentioned above, when the flowing product of splendid attire contacted outside face (22) or diaphragm (22a), the venting capability of breather was just significantly reduced.As mentioned above, this outside face or diaphragm are that breather is subjected to exposed portions most towards the dress goods.At internal tank, the contact between goods and the diaphragm mainly causes that goods splash and produces owing to container during shipment and the carrying rocks.In this article, " splash " mean the of short duration discontinuously mating surfaces of liquid substance when aforesaid liquid rocks in container.Splashing of the flowing product of adorning mainly occurs in during shipment and the carrying, is easy to generate rocking of container this moment most.

We find that when dress flowing product contact diaphragm (22a), these diaphragms may be lost its permeability to air.In fact, we find, can not get rid of flowing product or part goods from diaphragm fully.Like this, diaphragm may be covered by goods, and promptly for that part of diaphragm that goods covered that is not excluded, its aeration reduces.Thereby the aeration of container reduces or in fact forfeiture.

For sticking flowing product or with diaphragm the especially this situation of flowing product of certain affinity is arranged.We find, the goods that viscosity is at least 5cps demonstrate it and are difficult to get rid of from diaphragm, and this viscosity is to measure under the condition of 20 ℃ of rotating speed 60rpm sounding rod 3 and temperature with the Brookfield fluid meter.Other example is to show the liquid with non-Newtonian flow characteristic of shear thinning (Shear thinning) or have low-surface-energy (＜30 dynes per centimeter ²) liquid.For example, the liquid that comprises inhibiter generally shows non-Newtonian flow characteristic.Press the saying of this paper, " shear thinning " goods are meant a kind of goods, and these goods have high viscosity when percent shear is low, otherwise when percent shear was high, its viscosity was low.Shear thinning (non newtonian flows) goods are difficult to get rid of from diaphragm.This be because: since during getting rid of observed flow of articles dynamic characteristic, the percent shear that is directly pasting the goods of diaphragm is low.Therefore, recline last laminate of diaphragm demonstrates intrinsic heavy body.Thereby hindered from last laminate of diaphragm eliminating.

Mainly occur in the contact between dress flowing product and outside face (22) or the diaphragm (22a) during the shipment and carrying of container.In fact, flowing product just is splashed on the diaphragm in the container when container rocks.We find that the splashing amount that produces usually has been enough to destroy fully the ventilation capacity of container during shipment and carrying.The another kind of mode that causes goods to contact with diaphragm is during putting upside down storage vessel.We find that also other for example resembles the evil that blow and vent system such as valve also are subjected to same shortcoming.Therefore, the invention provides a kind of container of flowing product or the lid of this container, it can make or force the described goods that splash to be got rid of from diaphragm.We find that container of the present invention or lid can make the goods ventilation fully, thereby prevent big container deformation, and can significantly not lose ventilation capacity.

The possible method of removing the goods that splash from diaphragm is that scraping is splashed the membrane surface of goods is arranged.We find, in case remove the goods that splash from the surface of diaphragm, just can recover the ventilation capacity of diaphragm fully, thereby prevent big bottle deforms.For example just can the above-mentioned surface of scraping with instrument with scoop shape.Though this technical scheme has solved problem of the present invention, it has two major defects.First scraping operation is finished by hand by the user, and this is inappropriate, is perhaps carried out this device complexity and cost height by the mechanical movement means that is contained in the container.It two is may damage this diaphragm from the operation that diaphragm scrapes off the goods that splash.In fact, be easy to make above-mentioned diaphragm to lose the impermeability of liquid by scraping.Therefore, the present invention also provides a kind of container or lid.In this container or lid, can make or force the goods that splash from diaphragm, automatically to be got rid of, and not need diaphragm is carried out any scraping.

Fig. 1 a illustrates the diaphragm (22a) of horizontal outside face (22) or level, and toughness goods have splashed on this surface or the diaphragm.In this case, goods (5) can not be got rid of from diaphragm.This is because the viscosity of goods is quite high, makes: the first, and gravity itself is not enough to force goods to get rid of from diaphragm; The second, the hydrophobic property that another possible reason is a diaphragm is not enough to the repulsion goods and leaves diaphragm.When diaphragm is surrounded fully by a zone of container shown in Fig. 1 b, also further hindered the goods (5) that splash are got rid of from diaphragm.This container area may be the part of the cover of diaphragm, the part of container or the part of lid.This zone hinders the goods that splash and gets rid of from diaphragm.This is because the goods that acted on the surface tension of the viscosity of capillary force on the goods that splash, goods and goods and be enough to splash by this zone remain in this zone of diaphragm.

The device (30) that can solve problem shown in Fig. 1 a is that outside face (22) or diaphragm (22a) perpendicular or inclination are placed in container or the lid (10), shown in Fig. 2 a (side cross-sectional view or front elevation).The breather that comprises diaphragm and aperture (21) preferably is placed on the sidewall (18) of container or lid.Therefore, breather is configured on the sidewall (18), is positioned at the top of container or lid, makes described breather at least at institute's carrying liquid goods above water.The perpendicular of breather or bevelled arrange and improved the eliminating of goods from the diaphragm, makes the breather ventilation.In fact, gravity can act on the goods that splash, and forces these goods to leave outside face or diaphragm and flows to the lowest edge (20a) of breather.It is following defined to press this paper, and " attractive force " is meant those power that also these goods kept on the goods that splash on the outer surface that act on.We find that attractive force is parallel to the respective component of the component of described outside face less than gravity.Therefore, can force the goods that splash to leave outside face flows on the above-mentioned lowest edge (20a).

We find that in order to improve the eliminating of said products, above-mentioned at least outside face (22) or above-mentioned diaphragm (22a) should perpendicular configuration or tilted configuration.Example is shown among Fig. 2 c and Fig. 2 d.Aperture (21) is positioned on the roof (17).Make outside face or diaphragm cover aperture by this way, that is: when container is in its stand up position, always make perpendicular or the inclusion of bevelled surface in container and lid.Also can go up and obtain the bevelled diaphragm, shown in Fig. 2 e and 2f at cover (6).In these cases, above-mentioned diaphragm be contained in sidewall (Fig. 2 e, 18a) on, perhaps be contained in the end of cover (Fig. 2 f), these are the positions that are exposed to institute's splendid attire goods most.The assembly method identical with above-mentioned installation method is suitable for.Cover (6) preferably is connected on container or the lid with wall (19).Cover itself can be placed on the roof (17) or sidewall (18) of container or lid (10).The tilt method of diaphragm of another kind of configuration the present invention is the breather that utilizes as a lid part, and lid (10a) is connected on the angled neck (10b) of container or bottle (10c), shown in Fig. 2 g.

We find, this method that is increased in the surface energy differential between the zone that outside face (22) (or diaphragm (22a)) and container surround this outside face (or diaphragm) can further be improved goods and get rid of from vertical or bevelled breather or diaphragm.The surface energy of diaphragm is lower than the surface energy of goods, thereby guarantees the leak tightness of goods.The result is that goods are left diaphragm (22a) by repulsion.Therefore that part of container area that guarantees to surround the outside face of described diaphragm has the surface energy that is higher than goods can improve the eliminating of goods from the diaphragm.This be because: goods with surface energy in the preferred wet pans be higher than product surface can the surface in zone.On the contrary, goods will by push away surface energy in the container be lower than product surface can the zone.Therefore, guarantee that the container area of surrounding outside face (22) has the eliminating that the surface energy that is higher than goods just can improve these goods.

Can increase the surface energy in the zone that surrounds outside face (22) or diaphragm (22a) with Several Methods.At first, can use periphery wall (32) to surround diaphragm, shown in Fig. 2 a, this periphery wall (32) is made with a kind of material, and the affinity of this material and goods is greater than the affinity of diaphragm (22) with goods.For example, utilize its wetting ability just can increase its surface energy greater than this outer surface of material manufacture of outside face or diaphragm.This periphery wall can be used as independent Plastic Parts and is embedded in the container, perhaps can be used as the part surface coating and applies up, perhaps can be injected into altogether in the zone that surrounds above-mentioned diaphragm during making container.Secondly, comprising the lid itself of the container of diaphragm or this container can be with making greater than the material of the affinity of diaphragm and goods with the affinity of goods.The 3rd, this material manufacture also can be used in the zone of the encirclement diaphragm in the cover, for example shown in Fig. 2 d.Preferably, the above-mentioned zone that surrounds diaphragm stretches out and is connected at least on this diaphragm from diaphragm (22a) at least.More preferably, above-mentioned outer surface is the part that extends in parallel of above-mentioned outside face or above-mentioned diaphragm.

Shown in Fig. 1 a or shown in Fig. 1 b under diaphragm is contained in situation in the cover, improve another kind of method that goods get rid of from outside face (22) or diaphragm (22a) and be and reduce goods and surround capillary force between the zone of diaphragm, thereby gravity is got rid of goods from diaphragm.Improving the other method that the goods that splash get rid of from diaphragm is to increase the percent shear that acts on the goods, thereby this method can reduce to have the viscosity of the goods of non-Newtonian flow characteristic, and increases the fluid ability of these goods thus.These two kinds of methods all can be used for breather level or non-level outside face or diaphragm, this outside face or diaphragm can be with or without described outer surfaces.

The possible method that solves problem shown in problem shown in Fig. 1 a and Fig. 1 b is near ventilation zone or near diaphragm (22a) configuration remover (35).This remover is preferably partly around above-mentioned diaphragm and/or outer surface (32).When container or lid were in its stand up position, this remover preferably was positioned at the lowest edge of diaphragm and/or outer surface.Remover of the present invention (35) must satisfy certain condition, so that do not hinder other function of container.At first, this device should not hinder air from flow of articles through blow and vent system, that is: itself should not hinder the ventilation of container.Secondly, remover should not hinder the inside dispensing goods from container.

Utilize non-limiting examples shown in Figure 3 to further specify above-mentioned remover (35) below.Fig. 3 a illustrates the side cross-sectional view and the front elevation of breather, and this breather perpendicular is configured on container (part illustrates) or the lid (10), preferably is configured on the sidewall (18).Breather comprises hole (21) and outside face (22) or diaphragm (22a), and remover comprises absorption bar (31), and this absorbs bar and extends to the inside of container or lid downwards from breather.This absorption bar preferably is connected in the lowest edge of above-mentioned outside face or diaphragm and/or above-mentioned outer surface (32).Perhaps, this absorption bar can be near the part of the container of diaphragm position or lid be connected in container or this part of lid on, or the part of the ejiction opening of container or lid or be connected on this ejiction opening, thereby this absorption bar is in close proximity to diaphragm and/or outer surface at its lowest edge at least.Preferably, this absorption bar, more preferably is being fixed between 1～6mm on diaphragm and/or the outer surface on diaphragm and/or outer surface at a drop diameter range internal fixation.

For the present invention, absorb bar (31) and diaphragm (22) and/or to contact with outer surface (32) be critical.In fact, be not subjected to the restriction of any theory, we think that at first, this absorption bar can reduce capillary force, because this absorption bar forms a kind of geometric configuration, this geometric configuration is asymmetric on the surface of breather or diaphragm.This asymmetry on membrane surface has a kind of effect, that is: liquid is forced to and gets rid of from the surface of diaphragm and can not stoped by capillary force.

Secondly, the geometric configuration of above-mentioned absorption bar (31) makes goods get rid of from diaphragm by having increased percent shear in the position of this absorption bar contact diaphragm at least partly.The mobile goods that this means the non-Newtonian flow characteristic that shows shear thinning have the viscosity that has reduced, thereby this absorption bar has further improved the eliminating of this based article from the breather.

Get rid of for further improving, we think to have the surface energy that is higher than goods or outside face or diaphragm if absorb bar, then should absorb bar (31) and can attract described goods near diaphragm.Utilize wetting ability just can reach this point greater than the material absorption bar of diaphragm.In fact, the wetting ability of above-mentioned absorption bar should be such, that is: the balance by increasing surface energy, as above described to this outer surface (32), can further attract goods from diaphragm.Therefore, because this attraction, the liquid that is excluded can further flow out diaphragm.Meanwhile, this makes that also stay other liquid on the diaphragm crosses diaphragm and flow to and absorb on the bar.Accumulate in the liquid that absorbs on the bar and flow to the following of this then and accumulate in position (35a), it reaches the weight that makes in its container that falls back at last in this position.

The surface configuration that absorbs bar (31) can be various, shown in Fig. 3 a～3e.This surface can be leg-of-mutton, rectangle or circular.For example, this absorption bar is long and narrow rectangle in Fig. 3 a.Shown in Fig. 3 b and 3c, this absorption bar also can be configured as scoop shape.Particularly, described scoop can have triangle or rectangle and optional circular edge.Those skilled in the art can select to have the remover of suitable shape and size, makes it be suitable for being contained on container or the lid and/or improves the attractive in appearance of container or lid.

Another kind method is to go up with respect to vertical direction inclined outer surface (22) and/or diaphragm (22a), shown in Fig. 3 d and 3e at container or lid (10).Preferably, diaphragm with respect to the inclined angle alpha of vertical direction preferably between 10 °～90 °, more preferably between 30 °～70 °.Shown in Fig. 3 f, absorb bar (31) and also can tilt with respect to vertical direction.This absorbs bar and can also tilt with respect to above-mentioned outside face.Preferably, this absorb bar with respect to the angle of inclination beta of above-mentioned vertical direction preferably between 10 °～90 °, more preferably between 30 °～70 °.Most preferably, above-mentioned absorption bar tilts from diaphragm, makes diaphragm and absorb minimum angles δ between the bar greater than 90 °.In fact, we find that this geometry between diaphragm and absorption bar will further force goods to be got rid of from diaphragm.

We find that also remover (35) has also significantly improved goods to be got rid of from the outside face (22) or the diaphragm (22a) of aclinal or level, promptly gets rid of from the breather of horizontal arrangement on container or cap topwall (17), shown in Fig. 4 a.This remover also can comprise absorption bar (31), and this absorption bar begins and stretched to by breather the inside of container or lid downwards from the lowest edge of diaphragm.Below embodiment by the indefiniteness shown in Fig. 4～7 further specify described remover.The remover of form same as shown in Figure 3 can directly apply on the level ventilation device.

In addition, can place the different absorption bar (31) of some configurations along the periphery of outside face (22) or diaphragm (22a), shown in Fig. 4 a～4d.For example, can to dispose individually or be two or more be one group one-tenth configuration set to the absorption bar that is shaped as triangle or arc.Single absorption bar shown in Fig. 4 a and the 4b can partly surround the periphery (23) of diaphragm.It is also contemplated that the absorption bar that surrounds the whole periphery of breather fully.Two or more absorption bars can be cut apart above-mentioned periphery in the mode of rule, shown in Fig. 4 c and 4d.

Absorbing bar (31) also is possible with respect to the vertical direction inclination, shown in Fig. 5 a and 5b.Another kind of mode is to make to absorb the form that bar is slideway, shown in Fig. 6 a and 6b.Fig. 6 a illustrates a mono-that is the slideway form and absorbs bar, and it is as the inside of downward rotation direction container of spiral or lid.Fig. 6 b illustrates has the more than one mode that is the absorption bar of slideway form.Each absorbs the reverse each other backspin of bar.In other possibility shape of surrounding the absorption bar of diaphragm shown in Fig. 7 a～7d to small part, shown in corresponding backplan.Particularly, as scoop shape (Fig. 7 a), triangle (Fig. 7 b) and polygon (Fig. 7 c and 7d).Those skilled in the art can select the remover of suitable shape and size, so that make it be fit to be contained on container or the lid and/or improve the attractive in appearance of container or lid itself.

Above-mentioned remover is preferably made by plastics, metal, paper or by these combination of materials cambium layer goods, laminated product or co-extrusion pressure goods.These materials can also reclaim.The preferred material of making this remover comprises that also all wetting abilities are higher than the material of diaphragm (22a), so that increase the balance of surface energy as described above.This class material for example is as polyethylene (high density or lower density), polyvinylchloride, polyester, polyethylene terephthalate (PET), can extrudes plastics such as PET, polypropylene, polycarbonate and nylon.These plastics can use separately, or are combined into co-extrusion pressure goods, laminate or laminated product.Another kind of possibility is to be added in additive in the discrete material or to carry out suitable finish coat to make hydrophobic material have more wetting ability.

Remover (35) can in all sorts of ways and be embedded in the container, and they can be embedded in the container during mold container or lid (10).In addition, they also can create the part of cover (6), and this cover (6) comprises diaphragm (22a).In addition, they also can be embedded in the container as a single-piece after making container.Can fix above-mentioned single-piece with adhesives or welding operation.In addition, also can obtain this single-piece with mechanical fastening system, that is: remover can be made for a single-piece part, and this single-piece plays a part the mechanical fastening system of diaphragm.For example, above-mentioned remover can be combined on the intermediate plate with the diaphragm fix in position.

Therefore, the invention provides the method that a kind of utilization is included in the flowing product container or the breather in the lid of this container (20) is ventilated goods, this method can make or force said products to be got rid of from this breather whereby.For the goods of non-Newtonian flow characteristic with certain viscosity or demonstration shear thinning, or for having low-surface-energy (＜30 dynes per centimeter as mentioned above ²) goods, method of the present invention is valuable especially.This method can reduce capillary force, thereby can make on the action of gravity semifinished piece.Described method of the present invention also provides a kind of device, and this device increases the percent shear that acts on these goods at described goods at least partly during described outside face (22) or diaphragm (22a) eliminating.This method also provides a kind of device, and this device can increase outside face or diaphragm and around the balance of the surface energy between the zone of outside face or diaphragm.All these methods can combine in a suitable manner each other, get rid of from the outside face of described diaphragm so that improve said products.

Claims (17)

1, the lid (10) of a kind of container of flowing product (10) or this container, the viscosity of these goods uses the Brookfield fluid meter at rotating speed 60rpm, be measured as 5cps at least under the condition that sounding rod 3 and temperature are 20 ℃, this container or lid utilize breather (20) can make the goods ventilation, when internal tank air pressure is different from barometric pressure, this breather makes gas in container, circulate between the outside, breather be breathe freely but impermeable described goods, and breather comprises outside face (22), it is characterized in that, described container or lid comprise a kind of device (30), in case goods contact with the outside face of described breather, this device (30) can make the outside face of these goods row from this breather.

2, as described container of above-mentioned each claim or lid, it is characterized in that, capillary force between the zone of device (30) minimizing goods and encirclement breather (20), thereby can make the gravity that acts on the goods be enough to the outside face (22) from described breather with goods row.

As described container of above-mentioned each claim or lid, it is characterized in that 3, device (30) semifinished piece row is the local at least percent shear that acts on these goods that increases during the outside face (22) of breather (20); Thereby can reduce the viscosity of the goods of non-Newtonian flow characteristic with shear thinning.

4, as described container of above-mentioned each claim or lid, it is characterized in that, device (30) increases the outside face (22) of breathers (20) and surrounds the balance of the surface energy between the zone of this breather outside face, thereby strengthens the outside face of goods row from described breather.

5, container as claimed in claim 4 or lid is characterized in that, device (30) comprises a kind of material, and the affinity of this material and goods is greater than the affinity of outside face (22) Yu the goods of breather.

6, as claim 4 or 5 described container or lids, it is characterized in that, breather (20) comprises outer peripheral face (32), this outer peripheral face stretches out and is connected in this outside face at least from the outside face (22) of breather at least, this outer peripheral face is the part that extends in parallel of breather outside face, and the wetting ability of this outer peripheral face is greater than the outside face of breather.

As described container of above-mentioned each claim or lid, it is characterized in that 7, device (30) comprises that the outside face (22) with breather (20) and/or this breather is configured in one with respect in the horizontal direction plane inclined.

8, container as claimed in claim 7 or lid is characterized in that, device (30) comprises basically the vertically breather (20) of configuration and/or the outside face (22) of this breather.

As claim 7 or 8 described container or lids, it is characterized in that 9, the inclined angle alpha of the outside face of described breather and/or this breather is between 10 °～90 °.

As described container of above-mentioned each claim or lid (10), it is characterized in that 10, remover (35) stretches out and is connected in this outside face at least from the outside face of breather at least; This remover extends on respect to horizontal direction bevelled direction at one.

11, container as claimed in claim 10 or lid (10) is characterized in that, remover (35) tilts with respect to the outside face of the breather mode with perpendicular.

12, as each described container or lid in claim 10 and 11, it is characterized in that, remover (35) with respect to the angle of inclination beta of horizontal direction between 10 °～90 °.

As each described container or lid in the claim 10～12, it is characterized in that 13, remover (35) is made with a kind of material, the wetting ability of this material is greater than the outside face (22) of breather (20).

14, as described container of above-mentioned each claim or lid, it is characterized in that, breather (20) comprises hole (21) and diaphragm (23), the inside and outside portion of this hole connection container, the part in the above-mentioned hole of this membrane covered or this hole, this diaphragm allow gas by but do not allow flowing product to pass through.

As described container of above-mentioned each claim or lid, it is characterized in that 15, the viscosity of described goods is between 200～5000cps, this viscosity is to measure under the condition of 20 ℃ of rotating speed 60rpm, sounding rod 3 and temperature with the Brookfield fluid meter.

As described container of above-mentioned each claim or lid, it is characterized in that 16, described goods comprise bleaching agent.

17, container as claimed in claim 16 or lid is characterized in that, goods comprise peroxide bleaches.

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