CN1082008C - Heat insulation paper container and its producing method - Google Patents
Heat insulation paper container and its producing method Download PDFInfo
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- CN1082008C CN1082008C CN96117388A CN96117388A CN1082008C CN 1082008 C CN1082008 C CN 1082008C CN 96117388 A CN96117388 A CN 96117388A CN 96117388 A CN96117388 A CN 96117388A CN 1082008 C CN1082008 C CN 1082008C
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Abstract
The present invention relates to a paper container with a foaming heat insulation layer of a foaming inhibiting part existing in a desired position. The heat insulation paper container is composed of a container body component and a bottom board component and is characterized in that at least one part of the outer wall surface of the container body component is coated with paint containing 5 wt% to 40 wt% of synthetic resin; a foaming inhibiting part made of thermoplastic synthetic resin films exists on the resin paint containing part of the outer wall surface of the container body component; a foaming heat insulation layer which is composed of thermoplastic synthetic resin films exists on other parts of the outer wall surface of the container body component.
Description
The present invention relates on container trunk parts outside wall surface, have the paper-made vessel of themoplasticity film of synthetic resin frothing heat-insulating layer.In more detail, the present invention relates to the paper-made vessel that partial foaming suppresses the frothing heat-insulating layer of position existence.
High-temp liquid can heat insulating container, the past is existing several for practical.For example, for this purpose, can use the heat insulating container of polystyrene foamed class.It is through after the step that adds foaming agent in polystyrene, and this material is injected in the mould, heats then and pressurize, makes the raw material foaming, and the taking-up container molding is made from mould.The heat insulating container that obtains like this is very good on adiathermancy.But on the burning disposal of the saving of oil resources or waste, be to be necessary the container studied again.And then, in the time will on the outside face of foamed styrene system heat insulating container, printing, the printing one by one after cup is shaped of having to, thereby except that with having no option the printings such as curved surface printing machine and punching press printer.Therefore, the shortcoming that is not suitable for printing is arranged.
In addition, for example, have the undulatory trunk cigarette made of paper of the full Zhou Zuocheng of preformed paper container body portion outer peripheral face is closed the heat insulating container that forms.When making this container, also need to make the manufacturing step of corrugated trunk volume made of paper parts and the trunk periphery step of connecting of this trunk being rolled up parts and vessel.This kind heat insulating container also has other shortcoming.The 1st shortcoming is owing to literal, figure, mark etc. are printed on the outer peripheral face that corrugated trunk made of paper is rolled up parts, so these literal and figure etc. seem crooked, to give the bad impression of customer.The 2nd shortcoming is because the trunk volume just contacts with container trunk parts in the trough part, so bonding force is poor, the danger of peeling off from the trunk outer peripheral face arranged.The 3rd shortcoming is because the container that has the corrugated trunk to roll up can not several overlap, so need bigger keeping place.
And then the heat insulating container of other kinds has the different inboard cup of trunk tapering and the dual structure of outside cup.Therefore, between inboard cup and outside cup, form the air adiabatic layer.Handle the formation margin of optic cup and form as a whole by inboard cup and outside cup are carried out coupling with trunk parts upper limb respectively.Under the situation of this container, because the outer peripheral face of outside cup is level and smooth, so printing adaptability is fabulous, but inboard cup and outside cup have segregative trend.In addition, because container comes down to double-ply, so general manufacturing cost height.
The spy opens clear 57-110439 communique and discloses, in the paper-made vessel of forming by container trunk parts and base plate part, at least on a side wall surface of container trunk parts coating or lamination the frothing heat-insulating layer of themoplasticity film of synthetic resin, another wall coating of container trunk parts or lamination the themoplasticity film of synthetic resin, form heat insulation paper container by any coating or lamination in the frothing heat-insulating layer of this themoplasticity film of synthetic resin or the aluminium foil.Open shown in the clear 57-110439 communique as the spy, contained humidity is heated and when evaporating, makes the themoplasticity film of synthetic resin foaming on surface in the paper.This container have better adiathermancy, can be at a low price and the advantage of making easily.
But the foaming of themoplasticity film of synthetic resin only is subjected to about the water ratio institute of paper in this method, and is poor in the supervisor status of paper, and water ratio is when low, it is insufficient to foam, though or when water ratio is high, help film foaming, the anxiety of the mechanical strength reduction of container is arranged.In addition, even foaming, also just integral body foams equably, and the thickness of foaming layer is changed.
For this reason, present inventors have at first invented as shown in Figure 4, have thickness as required and the paper-made vessel 1 of different frothing heat-insulating layers, and are willing to propose patent application flat 5-346302 number with the spy.As shown in Figure 4, this heat insulating container 1 is made of container trunk parts 3 and base plate part 5 basically.Near the outer peripheral face peristoma portion 7 and the base plate part 3 of container trunk parts 3, the useful ink printing parts 9 that contain organic solvent exist.And then, there is the frothing heat-insulating layer 11 of the whole outer peripheral face that covers the container trunk parts 3 that comprise this printing unit 9 to exist.As shown in the figure, be equivalent to the thickness of frothing heat-insulating layer 11 at the position of printing unit 9, thicker than the frothing heat-insulating layer 11 at the position that is equivalent to not have printing unit.Frothing heat-insulating layer 11 is, for example formed by the themoplasticity synthetic resin of polyethylene etc.
But, owing to this container 1 is the adiabatic layer that container trunk member outer surface integral foam forms, so container trunk parts whole outer surface concave-convex surface.Therefore, during use (when drinking), in user's lip contact site (that is, under the peristoma portion of container), lower lip often has coarse sensation.And then, at lamination the outside face of themoplasticity film of synthetic resin when being printed on the bar code that POS uses because the film foaming, bar code produces distortion or distorts, and tends to the identification maneuver of barcode recognizer is exerted an adverse impact.In addition, on the paper of container trunk parts during printed bar code, because the film foaming, make the reason that bar code is not distinct, become identification error.In order to address the above problem, present inventors are willing in flat 6-284125 number the spy, have proposed to be provided with at the necessary place of container trunk outside face non-foaming portion.
Fig. 5 is that expression forms a kind of method in this non-foaming portion method, should be provided with at the pellicular front of foaming side on the desired site surface of non-foaming portion, and at least 1 continuous or discrete slit 20 is set.Better there is the degree of depth that runs through film 10 and reach paper 17 in this slit 20.Therefore, when evaporating in the paper moisture by heating, moisture can diffuse in the atmosphere by slit 20, has stoped the slit that the film foaming of part is set, and the result forms non-foaming portion 22.
Fig. 6 represents to form another method in the non-foaming portion method, for example, on container mouth subordinate limit, with the width of regulation, is provided with and prevents the coating layer 70 that volatilizees.This prevents that the coating layer 70 that volatilizees from can make in the paper that contained solvent composition can not volatilize from paper in the contained humidity and printing ink, for example uses the KREHALONTEX DO-818 of Wu Yu chemical industrial company and the good water-based coating material that the steam permeable block is arranged of epitheliums such as CLEARCOAT LA 723-B1 of Hoechst Gosei (Hext is synthetic) company to form.As shown in the figure, the part laminated film 10 that is coated on the volatilization prevention coating layer 70 of paper 17 does not foam fully, is still original film thickness.In contrast, the film of the coating layer 70 that do not prevent to volatilize owing to the moisture in the paper foams, particularly has the film at printed layers 9 positions, because the solvent in the printed layers and fierce foaming forms thick frothing heat-insulating layer 11.
But, when the slit method of implementing as shown in Figure 5 of formationing, need be used to carry out the special device and the step of slit processing, thereby become the reason of increase container manufacturing cost.
On the other hand, the volatilize method of coating 70 of preventing that is provided with has as shown in Figure 6 been found following shortcoming: for the design coating composition that exists together mutually, in print steps (recoat), the printing ink that has been coated with before this can be dissolved by the solvent in the coating and decolour again; In addition, also find owing to what suppress foaming it is the resinous principle of priority, thus often insufficient with the cohesiveness of top layer film, have on the contrary to make bubble get back to the shortcoming of coating surface part; And then, because coating when printing in same local coating, so find that again just this part is very thick, needs partial pressure when batching with roller, and have and be stained with sticking shortcoming easily.
Therefore, the object of the present invention is to provide a kind of paper-made vessel that in the paper-made vessel of frothing heat-insulating layer is arranged, forms the foaming suppressing portion with more certain simple method.
In order to achieve the above object, the invention provides heat insulation paper container, the paper-made vessel that it is made up of container trunk parts and base plate part, it is characterized in that, coating contains the coating of 5-40 weight % synthetic resin composition on a part of wall of the outside wall surface of described container trunk parts, and the part that contains described resinous principle in described container trunk parts outside wall surface coating exists themoplasticity film of synthetic resin foaming suppressing portion; Other parts in described container trunk parts outside wall surface exist the frothing heat-insulating layer of being made up of the themoplasticity film of synthetic resin.
As mentioned above, heat insulation paper container of the present invention, the part being coated with the coating that contains 5-40 weight % synthetic resin composition has the foaming suppressing portion, and the part at uncoated this coating has frothing heat-insulating layer.That is, contain the coating of 5-40 weight % synthetic resin composition, have the function of the foaming property of the film of synthetic resin of lamination on the control container trunk parts outside wall surface.Therefore, by such as under container mouth portion or bar code printing portion such, be coated with this coating in advance at the position of not wishing film foaming, just can form the foaming suppressing portion effectively whereby.
Fig. 1 is the cutaway view of an example of heat insulating container of the present invention.Heat insulating container 1 of the present invention is made of container trunk parts 3 and base plate part 5 basically.The peristoma portion 7 of the outer peripheral face of container trunk parts 3 and close base plate 5 places exist to be coated with the foaming suppressing portion 24 that contains Synthetic resin paint.And then, exist the container trunk parts 3 whole outer peripheral faces that cover beyond this coated portion, thickness because of the different frothing heat-insulating layer 11 of situation.As shown in the figure, it is much thinner than frothing heat-insulating layer 11 to be coated with the thickness of the foaming suppressing portion 24 that contains Synthetic resin paint.
" foaming suppresses " the such term that uses in this specification sheets, mean that at the themoplasticity film of synthetic resin of lamination on the container trunk parts outside wall surface gas release that does not feel well when also comprising the lip contact or the meaning that does not cause the gas release of bar code readings bar code mistake are used fully not outside the foamed state.Such gas release generally is the about below 40% of complete gas release, but in order to make the bar code readings bar code inerrancy, better is below 30%.
In addition, the internal face side of container trunk parts 3, with themoplasticity film of synthetic resin such as polyethylenes, or lining such as aluminium foil 13.In the internal face side of container trunk parts 3 reason of coating is set also, except prevent that filling liquid from permeating in paper, also because when the heating assembling vessel, the moisture in the paper directly is not evaporated to the atmosphere from paper.If contained humidity loses fully in the paper, the themoplasticity film of synthetic resin of container parts 3 is not foamed.On the container inner wall face side of base plate part 3, lamination themoplasticity film of synthetic resin 15.As mentioned above, this is in order to prevent that liquid from permeating in paper.Symbol 17 is body paper.
Fig. 2 is the part amplification view that the foaming of container shown in Figure 1 suppresses part 24.The predetermined position of the themoplasticity film of synthetic resin 10 of lamination on the outside wall surface of container trunk parts 3 exists by what coating contained that Synthetic resin paint forms and films 26.These 26 foaming that suppressed the themoplasticity film of synthetic resin 10 of bottom of filming, its result forms foaming suppressing portion 24.Be presumed as follows by containing the inhibition mechanism that synthetic resin coating film 26 suppresses the foaming of themoplasticity film of synthetic resin 10.On themoplasticity film of synthetic resin surface, form when containing synthetic resin coating film 26, in heating steps, if the synthetic resin composition of filming in 26 has more resistance to effect of heat than film 10,26 the size non-expansion of then filming.For this reason, film and 26 do not expand with film 10, so film 10 can not chap, breaks, the air trapping phenomenon, film 10 does not foam.At this moment, with coating in the synthetic resin constituent concentration bigger relation is also arranged.Synthetic resin constituent concentration height, the epithelium intensity of resin is also high, when the epithelium intensity of this resin has reached not the degree that expands along with film 10, even do not foam too by force again.
In the present invention, the synthetic resin that can cooperate in the coating of the thermoplastic resin membrane's foaming that is used for suppressing lamination on the container trunk parts outside wall surface for example is the compound, the resene of solvent borne acrylic based resin of compound, water soluble acrylic resin, polyamide-based resins, chloridized polyolefin, chloridized polyolefin and rosin of compound, nitrocellulose, polyurethane, vinyl chloride and the vinyl acetate of alkide resin and nitrocellulose.These can separately or mix more than two kinds and use.
The use level of these resinous principles is a benchmark with the coating total weight, is in 5-40 weight % scope.Preferably in 10-30 weight % scope.During the use level less than 5 weight % of resinous principle, because of excessive rarefied, as coating, the unusual difficulty of coating not only, and also the desirable foaming of out of reach suppresses effect.On the other hand, when the use level of resinous principle surpassed 40 weight %, dope viscosity was very high, and coating adds man-hour, when particularly using intaglio plate coated fabric machine, reverse roll coating machine etc. to be coated with method of roll coating, can not successfully carry out the transfer printing of coating.In addition, problems such as the malfunction of scraper or sparger holes obstruction also can take place, thereby the coating that can not suit processing.
In the present invention, the coating that is used to suppress the foaming of themoplasticity film of synthetic resin uses for the dispersiveness, the control flowing power that promote above-mentioned resinous principle.In addition, during with intaglio plate formula coating composition, the coating transfer printing is become easily, make " wettability " of coating surface become good.The use level of solvent can be with the total amount of the use level of resinous principle and other adding ingredients (for example pigment or various auxiliary agent class) (during use) amount as 100 weight %.For example, when having only resinous principle and solvent not using pigment or various auxiliary agent class fully, if during the use level 5-40 weight % of resinous principle, the use level of solvent is 95-60 weight %.This solvent also can be water base, organic solvent based or their mixed stocker in any.Such solvent based for example is water, acetone, methyl acetate, MEK, isopropyl acetate, ethanol, acetate 2-butyl ester, n-butyl acetate, isobutanol, toluene, dimethylbenzene etc.With in these solvents mix more than two kinds and when using, from the fused easily viewpoint of resin, when considering solubility parameter (SP value), need make dissolubility and wettability obtain good balance.In addition, in fact, also must consider the drying property after the coating, so the boiling point of solvent and also be the factor of should emphasis considering than velocity of evaporation.When these factors of research, as long as the suitable solvent of selecting more than two kinds, combining, it is just passable to use.
Have no particular limits for the coating weight that contains Synthetic resin paint, but generally be at 1.0g/m
2-10g/m
2In the scope of (dry weight), 2-7g/m preferably
2Only being coating weight in this scope, after drying, the foaming inhibition that just can obtain having thickness in 1 μ m～10 mu m ranges films 26.When 26 thickness less than 1 μ m is filmed in formation, can not get desirable foaming and suppress effect.On the other hand, when thickness surpassed 10 μ m, it is saturated, uneconomical that foaming suppresses effect.26 the thickness of filming is different because of the synthetic resin content in the coating.For example, when synthetic resin content is high, can make the thickness attenuation of filming.
Contain the coating process of Synthetic resin paint, be not particularly limited.As coating process, doctor knife coater, flush coater are for example arranged, lick roll coater, setting-out mixes the machine that is coated with, intaglio plate is coated with machine, the roll coater that reverses, the excellent doctor knife coater that winds the line, curtain coater, air knife doctor knife coater etc.Drying means for coating also is not particularly limited.Can use known methods commonly used such as air-dry, heated-air drying to carry out drying.
Heat insulating container of the present invention can be assembled by cup manufacturing installation commonly used.At first, from coil paper advancing container trunk parts body paper, carry out necessary printing at predetermined position.In this stage, but also printed bar code etc.The available means commonly used or the position of definite this printing of order etc.Then, on the body paper of having implemented this printing, themoplasticity film of synthetic resin such as extruding layer pressure polyethylene.At the reverse side of body paper, also laminated thermoplastic film of synthetic resin or aluminium foil etc.Just at base plate laminated thermoplastic film of synthetic resin on the face of body paper.Then, should become the predetermined position of the side of container trunk parts outside wall surface on the themoplasticity film of synthetic resin laminate surface of this body paper, coating contains the coating of the synthetic resin of following detailed description.As another method, also have and to make the coating that contains synthetic resin after the container assembling, be coated on the advantage of container trunk parts outer wall predetermined position.Then, go out container trunk parts with blank, go out the base plate part blank with the body paper stamping-out from container body portion spare with the body paper stamping-out from base plate part.Use these blanks, with cup shaping machine commonly used, container trunk parts face toward outside of containers with the coating coated portion that contains synthetic resin on the blank, and the film laminating of base plate part is assembled into container facing to container inside.Container is assembled laggard capable furnace run.Thus, can obtain as shown in Figure 1, the different frothing heat-insulating layer of thickness is arranged and on desired position, have the foaming suppressing portion thermally insulated container made of paper 1.
Form the method for the different frothing heat-insulating layer of thickness, be disclosed in the flat 5-346302 specification sheets of above-mentioned special hope, but, its described part quoted here for cautiously.As mentioned above, when forming thick frothing heat-insulating layer, must on paper 17, use the ink printing that contains organic solvent in advance.The printing ink that is used for this printing is not particularly limited, but in order to promote the film foaming, the type of preferably printing back (especially in detail, in paper) residual minim solvent composition on printing surface.Generally, solvent as the printing ink use, can from a lot of materials such as acetone, ethyl acetate, methyl alcohol, isopropyl alcohol, ethanol, toluene, dimethylbenzene, MEK, first isobutyl ketone, butanols, propylene glycol methyl ether acetate, ethyl cellosolve, suitably select, and mix and use.Wherein, in order to improve foaming property, even and add and also minimal residue can be arranged man-hour at the two-sided laminated multi-layer that carries out, it is desirable to when printer is dry or multilayer is pressed and morely in the step contained printing ink that be difficult to evaporate, toluene, MEK, first isobutyl ketone etc.By comparison, it is desirable to these solvents and contain at least more than 10%, be preferably and contain 20-50%., from the application target of these printing ink, can not therefore ignore the solvent balance of printing adaptability.
The operable themoplasticity film of synthetic resin of the present invention is polyethylene, polypropylene, polyvinylchloride, polystyrene, polyester, nylon etc.At the film of the outer peripheral face side lamination of container trunk parts 3, must be lower than softening point at the film of internal face side lamination.Therefore, for example when the inside and outside two sides of container trunk parts 3 face uses polyethylene foil, the outer peripheral face side of container trunk parts 3 must be pressed with low density polyethylene layer, the internal face side must use in density or high-density polyethylene layer press.
The film thickness of lamination is not particularly limited, but makes film when foaming of the outer peripheral face side lamination of container trunk parts 3, preferably has the frothing heat-insulating layer 11 needed abundant thickness that form desired thickness.As an example, when low-density polyethylene film was laminated to the outer peripheral face side of container trunk parts 3, the thickness of this film can be 25-60 μ m.Also can use than its thicker film, but be difficult to see printed patterns below it.The film thickness that is laminated to the internal face side of container trunk parts 3 has no particular limits.So long as guarantee that the necessary thickness of anti-hydraulic permeability is just passable.Such thickness is different because of employed film.The professional can determine this thickness easily and suitably according to the film of selecting.
Making the employed body paper of heat insulating container of the present invention, preferably quantitatively is 100g/m
2-400g/m
2Paper in the scope.In addition, this body paper better has the water ratio in the 3-10% scope.
Heating-up temperature and time of heat are different because of the difference of use body paper and themoplasticity film of synthetic resin, but general, heating-up temperature is about 110 ℃-Yue 200 ℃, and time of heat was about 20 seconds-Yue 4 minutes.The professional can suit to determine for the optimum heating temperature of the film that uses and the combination of time of heat.
Heater means can use any means such as hot blast, electric heating, electron ray.In the tunnel that is equipped with the conveyor delivery means, as long as by hot blast or electric heating heating, just can inexpensive ground stock production.
Certainly, the foaming suppressing portion also can form on the paper-made vessel of the frothing heat-insulating layer with single thickness.The spy that paper-made vessel with frothing heat-insulating layer of single thickness is disclosed in the applicant opens on the clear 57-110439 specification sheets.When particularly cooperating coloring components in containing Synthetic resin paint, this coating also can be used as printing-ink and uses.Therefore, if with this printing ink literal, symbol, pattern etc. are printed on the laminated film surface, then after the film foaming, these printings can suppress to foam, thereby literal, symbol, pattern etc. are maintained and roughly the same state when foaming preceding the printing.Its result, the literal of printing, symbol, pattern etc. do not deform, distort, blur, pore, the visual pattern that can be analysed clearly.
Embodiment
Below ginseng is attached according to figure, illustrates in greater detail the present invention.
At 230g/m
2On the one side of the body paper of (water ratio 7.9%),, carry out extruding layer and force down density polyethylene with thickness 60 μ m.On the reverse side of body paper,, extrude the lamination high density polyethylene (HDPE) with thickness 20 μ m.On the ironed face of this low density polyethylene layer, coating contains the coating of various synthetic resin compositions with the concentration in the 5-40 weight % scope.As solvent, use component solvent by isopropyl alcohol (10%)/ethyl acetate (40%)/toluene (30%)/MEK (20%) is formed.The gross thickness of this two sides lamination body paper is 0.34mm.From this two sides lamination body paper stamping-out coupons, this coupons is put into belt conveyer furnace, heated for 120 seconds down at 120 ℃.Obtain only on the ironed film outer peripheral face of the low density polyethylene layer of sample, having the coupons of frothing heat-insulating layer.It is 0.826mm that the coupons gross thickness of frothing heat-insulating layer is arranged.The synthetic resin composition that uses and the relation of working concentration and frothing heat-insulating layer thereof are as shown in Figure 3.As shown in the figure, can know that vinyl chloride-vinyl acetate is to have shown under the concentration of synthetic resin in 20-30 weight % scope that good foaming suppresses effect.In addition, can know also that the concentration of other synthetic resin in 10-40 weight % scope has shown that also desirable foaming suppresses effect.
Embodiment 2
The bar code that prints on container trunk parts partly is coated with the present invention when containing synthetic resin foaming and suppressing coating and foam, and the foaming of having investigated at the accurate discrimination of this bar code suppresses effect.Be 230g/m quantitatively
2Body paper (water ratio 8.0%) go up printed bar code.Bar code printing becomes large size (1.5 times), medium size (1.2 times), small size (1.0 times) 3 kinds of sizes.On a face of this body paper, force down density polyethylene with thickness 60 μ m extruding layers.At the reverse side of body paper, 20 μ m extrude the lamination high density polyethylene (HDPE) with thickness.Suppress coating as the foaming that contains synthetic resin,, use vinyl chloride vinyl acetate copolymer for synthetic resin.For solvent, the component solvent that uses isopropyl alcohol (10%)/ethyl acetate (40%)/toluene (30%)/MEK (20%) to form.Be printed at the sample body paper on the laminated film at bar code position, the painting synthetic resin constituent concentration is respectively 30.0,22.5,15.0,7.5,3.8 and 1.9 foaming weight %, that contain synthetic resin and suppresses coating.Per 1 sample is prepared 10 blanks respectively, after 120 seconds, with bar code reader per 1 piece of blank is carried out 10 reading tests at 120 ℃ of furnace runs respectively, obtains its probability.Can with the bar code reader reading be that the bar code face is scanned when vertical visual, to estimate by single reading.As bar code reader, use the TBR-4000 of (strain) east development.According to the relation of synthetic resin constituent concentration in bar code size and the coating,, as shown in table 1 with the reading test results of bar code reader.In table 1, horizontal bar is represented the synthetic resin constituent concentration in the coating, and the size of bar code is represented on vertical hurdle.Numeral in the table is the number of times of correct reading during to each sample continuous scanning 100 times with bar code reader.
Table 1
| 30.0％ | 22.5％ | 15.0％ | 7.5％ | 3.8％ | 1.9％ | There is not coating | |
| Big 1.5 times | 100 | 100 | 100 | 100 | 100 | 99 | 61 |
| In 1.2 times | 100 | 100 | 100 | 100 | 100 | 90 | 18 |
| Little 1.0 times | 100 | 100 | 100 | 100 | 91 | 39 | 2 |
Of the present inventionly anyly contain that synthetic resin foaming suppresses coating and when foaming,, reach 61% not being coated with even large size (1.5 times) is also low for reading test with bar code reader.Medium size (1.2 times) is 18%, small size (1.0 times) are 2%, be equivalent to fully can not reading state.This can think fully because the cause that frothing heat-insulating layer exists.In contrast, if the coating synthetic resin foaming inhibition coating that contains of the present invention is then till synthetic resin constituent concentration 30.0-7.5 weight %, irrelevant with bar code size (multiplying power), can 100% complete reading.
Fig. 7 is in the sample of representing to make under these conditions, and depth of foam and foaming suppress the characteristic map of the relation of resinous principle containing ratio in the coating.When not being coated with foaming inhibition coating, the gross thickness that the sample of frothing heat-insulating layer is arranged is 0.786mm.In addition, the sample thickness before the foaming is 0.458mm.As shown in the figure, along with the increase of resinous principle containing ratio, the thickness of frothing heat-insulating layer reduces.That is, the containing ratio along with resinous principle increases the foaming inhibition effect increase of laminated film.
When inhibition coating was foamed in shown in Figure 7 not being coated with, the sample gross thickness 0.786mm that frothing heat-insulating layer is arranged with the sample total thickness value and the contrast of this 0.786mm value of each resinous principle containing ratio, obtained relative frothing percentage as 100% frothing percentage.The relation of frothing percentage and this resinous principle containing ratio as shown in Figure 8.In result shown in the table 1, when being 7.5 weight % owing to the resin containing ratio, irrelevant with the bar code size, error in reading is 0%, is 29% so can understand its cooresponding frothing percentage from Fig. 8.Therefore, about faultless bar code readings bar code, the gas release that draws laminated film must suppress the conclusion below 30% to complete gas release.
As previously discussed, according to the present invention, the foaming inhibition coating that contains synthetic resin in the assigned position coating of container trunk parts, with this container heating, make the themoplasticity film of synthetic resin foaming of trunk outside face lamination, also can suppress to be coated with the foaming that foaming suppresses the themoplasticity film of synthetic resin of coating bottom partly effectively.Its result has been coated with this foaming when suppressing the bar code etc. of this position bottom printing of coating reading, and can not make a mistake.And then, this coating is coated on container mouth subordinate portion annularly, suppress the film foaming of peristoma subordinate portion, even running into lip, this part do not have harsh feeling yet, can feel the sense of touch identical with flat film.
Fig. 1 is the summary cutaway view of an example that the present invention has the heat insulation paper container of foaming suppressing portion.
Fig. 2 is near the amplification view of the mode section of the foaming suppressing portion of container shown in Figure 1.
Fig. 3 is that expression foaming suppresses each synthetic resin in the coating and concentration thereof the characteristic map to the influence of film foaming.
Fig. 4 is special pattern cutaway view of being willing to an example of the disclosed fill container made of paper that the different frothing heat-insulating layer of thickness arranged in the flat 5-346302 specification sheets.
Fig. 5 is the pattern cutaway view that forms a method example of non-foaming portion shown in the presentation graphs 4 on the container body portion.
Fig. 6 is the pattern cutaway view that forms another method example of non-foaming portion shown in the presentation graphs 4 on the container body portion.
Fig. 7 is the characteristic map of expression resinous principle containing ratio and frothing heat-insulating layer thickness relationship.
Fig. 8 is the characteristic map of expression resinous principle containing ratio and frothing percentage relation.
The explanation of symbol
1 heat insulation paper container of the present invention
3 container trunk parts
5 base plate parts
7 container mouth portions
9 printed layers
10 container outer wall face side laminated films
11 frothing heat-insulating layers
13 container inner wall face side laminated films
17 paper
20 slits
22 non-foaming portions
24 foaming suppressing portions
26 foaming that contain synthetic resin suppress to film
Claims (16)
1. heat insulation paper container, it is made up of container trunk parts (3) and base plate part (5), it is characterized in that,
On at least a portion wall of described container trunk parts outside wall surface, be coated with a kind of coating that contains 5-40 weight % synthetic resin composition, there is a kind of foaming suppressing portion (24) of themoplasticity film of synthetic resin in the coating coated portion that contains described resinous principle on said vesse trunk parts outside wall surface;
There is the frothing heat-insulating layer of being made up of the themoplasticity film of synthetic resin (11) in other parts in described container trunk parts outside wall surface.
2. according to the container of claim 1, wherein, the synthetic resin composition that contains 10-30 weight % in the coating that described container uses, this synthetic resin composition are selected from the copolymer, the resene of solvent borne acrylic based resin of copolymer, water soluble acrylic resin, polyamide-based resins, chloridized polyolefin, chloridized polyolefin and rosin of copolymer, nitrocellulose, polyurethane, vinyl chloride and the vinyl acetate of alkyd and nitrocellulose.
3. according to the container of claim 2, wherein, described synthetic resin composition is the copolymer of vinyl chloride and vinyl acetate.
4. according to the container of claim 1, wherein, described foaming suppressing portion is at least with the continuous band-shaped bottom that is present in container mouth portion (7) of Rack.
5. according to the container of claim 1, wherein, described foaming suppressing portion exists in the area that covers described bar code fully with foot at the position of container trunk parts corresponding to the bar code printing position.
6. according to the container of claim 1, wherein, described coating contains 5-40 weight % synthetic resin, also contains an amount of pigment and/or illuminating colour, has constituted described foaming suppressing portion by the printed literal of this coating, symbol, figure and/or pattern part.
7. according to the container of claim 1, wherein, frothing heat-insulating layer (11) thickness of described container trunk parts outside wall surface is constant substantially.
8. according to the container of claim 1, wherein, the frothing heat-insulating layer of described container trunk parts outside wall surface is made up of thicker frothing heat-insulating layer and thin frothing heat-insulating layer.
9. container according to Claim 8 wherein, near peristoma portion, has described thicker frothing heat-insulating layer from the first half of container body portion spare.
10. according to the container of claim 1, wherein, container trunk parts internal face is that high themoplasticity film of synthetic resin or the aluminium foil laminate of softening point with the themoplasticity film of synthetic resin of institute's lamination on the container trunk parts outside wall surface forms at least.
11. the manufacture method of a heat insulation paper container is characterized in that, it comprises:
Laminated thermoplastic film of synthetic resin on a face of body paper,
Coating contains the coating of 5-40 weight % synthetic resin composition on the assigned position of this laminated film,
From this body paper stamping-out container trunk blank, from another body paper stamping-out container floor blank, be configured as container by resulting two blanks,
Then, by heating this container, make the foaming of this themoplasticity film of synthetic resin, on the outside wall surface of described container trunk parts, form frothing heat-insulating layer, and form foaming in the position corresponding container trunk parts outside wall surface that contains described synthetic resin composition coating with coating and suppress part.
12. method according to claim 11, wherein, use a kind of coating that contains 10-30 weight % synthetic resin composition, described synthetic resin composition is selected from the copolymer, the resene of solvent borne acrylic based resin of copolymer, water soluble acrylic resin, polyamide-based resins, chloridized polyolefin, chloridized polyolefin and rosin of copolymer, nitrocellulose, polyurethane, vinyl chloride and the vinyl acetate of alkyd and nitrocellulose.
13. according to the method for claim 12, wherein, described synthetic resin composition is the copolymer of vinyl chloride and vinyl acetate.
14. according to the method for claim 11, wherein, described foaming suppressing portion is at least with the continuous band-shaped container mouth subordinate portion that is present in of Rack.
15. according to the method for claim 11, wherein, described foaming suppressing portion exists in the area that covers described bar code fully with foot corresponding to the bar code printing position at container trunk parts.
16. according to the method for claim 11, wherein, described coating contains 5-40 weight % synthetic resin composition, also contains an amount of pigment and/or illuminating colour, by with this coating printing word, symbol, figure and/or pattern, to form described foaming suppressing portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96117388A CN1082008C (en) | 1996-11-29 | 1996-11-29 | Heat insulation paper container and its producing method |
| HK98112378A HK1011197A1 (en) | 1996-11-29 | 1998-11-27 | Heat-insulating paper container and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96117388A CN1082008C (en) | 1996-11-29 | 1996-11-29 | Heat insulation paper container and its producing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1184062A CN1184062A (en) | 1998-06-10 |
| CN1082008C true CN1082008C (en) | 2002-04-03 |
Family
ID=5124261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96117388A Expired - Lifetime CN1082008C (en) | 1996-11-29 | 1996-11-29 | Heat insulation paper container and its producing method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1082008C (en) |
| HK (1) | HK1011197A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218793A (en) * | 2010-04-15 | 2011-10-19 | 晋溢生化科技股份有限公司 | Method for forming foaming layer on surface of container or container semi-finished product |
| CN102219080A (en) * | 2010-04-15 | 2011-10-19 | 晋溢生化科技股份有限公司 | Method for manufacturing container with heat-insulating layer |
| EP2571772A1 (en) * | 2010-05-21 | 2013-03-27 | MeadWestvaco Corporation | Hermetically-sealed paperboard containers with improved barrier performance |
| CN102441520B (en) * | 2010-10-14 | 2015-03-25 | 晋溢生化科技股份有限公司 | Method for forming color material layer and foaming layer on surface of base material and container manufactured by utilizing same |
| CN103622416A (en) * | 2012-08-24 | 2014-03-12 | 杨仕宇 | Paper container |
| CN104114450B (en) * | 2013-09-30 | 2016-01-13 | 日本得意纸品有限公司 | The manufacture method of paper-made vessel and this paper-made vessel |
| JP5549959B1 (en) | 2013-09-30 | 2014-07-16 | 株式会社日本デキシー | Paper container and method for manufacturing the paper container |
| TWI610787B (en) * | 2014-07-18 | 2018-01-11 | Lin Pei Ti | Foaming container manufacturing method |
| TWI606929B (en) * | 2016-10-03 | 2017-12-01 | 日本迪克斯股份有限公司 | Raw material sheet used for foamed resin coated paper products and foamed resin coated paper container |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965029A (en) * | 1986-07-02 | 1990-10-23 | Polyol International Bv | Process for preparing polyurethane foams having zones of differing hardness |
| US5118532A (en) * | 1990-02-27 | 1992-06-02 | Vytech Industries, Inc. | Method of producing decorative vertical louver window covering material and decorative vertical louver material so produced |
-
1996
- 1996-11-29 CN CN96117388A patent/CN1082008C/en not_active Expired - Lifetime
-
1998
- 1998-11-27 HK HK98112378A patent/HK1011197A1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4965029A (en) * | 1986-07-02 | 1990-10-23 | Polyol International Bv | Process for preparing polyurethane foams having zones of differing hardness |
| US5118532A (en) * | 1990-02-27 | 1992-06-02 | Vytech Industries, Inc. | Method of producing decorative vertical louver window covering material and decorative vertical louver material so produced |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1184062A (en) | 1998-06-10 |
| HK1011197A1 (en) | 1999-07-09 |
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