CN201075278Y

CN201075278Y - Printing membrane

Info

Publication number: CN201075278Y
Application number: CNU200720138939XU
Authority: CN
Inventors: 罗文建
Original assignee: LABELMEN MACHINERY CO Ltd
Current assignee: LABELMEN MACHINERY CO Ltd
Priority date: 2007-08-20
Filing date: 2007-08-20
Publication date: 2008-06-18
Anticipated expiration: 2017-08-20

Abstract

The utility model relates to a print film, finished products of which can be melted on the surface of an object that is made of poly propylene (PP) to form effects of advertising, instruction, marking, etc. The print film mainly consists of a bottom film layer, a printing layer and a covering layer, wherein, the bottom film layer is made of bi-axial oriented poly propylene (BOPP). Therefore, the melt point of the print film layer is close to the melt point of the object, and the print film can be directly ejected into moulding on the object, which causes the finished products of the print film to be directly melted on the outer surface of the object, thus achieving good melting effect.

Description

Print film

Technical field

The utility model relates to a kind of print film, be provided with fusion one body surface to form effects such as advertisement, explanation or sign, the utility model refers to that especially a kind of (Bi-axial Oriented PolyPropylene is BOPP) as the print film of bottom membrane with biaxial stretched polypropylene.

Background technology

The application of printing paster is quite extensive, such as on the packaging external appearance of the articles for use in the daily life, all be seen everywhere, bottled drink for example, paper towel box, Ice or the like, at present, the applied packing method of this series products, mostly be after paster is completed for printing in advance, coat or be attached to the outward appearance that is subjected to package main body again, as the apparent plastic cement print film of bottle promptly is one, again, the packaging applications of another kind of paster type then is after reflex printing is finished, directly be attached to and packed on object surfaces or the plane, and in order to reach waterproof and the demand that prevents to fade, the layer of transparent rete that can be covered again on the surface of paster usually is so that paster itself can have waterproof action to a certain degree; The paster of above-mentioned several types and packing, all quite common in application in the market, wherein, be applied in the paster of packing diet class, then more a feast for the eyes, however the packing of diet class is suitable safety-sensitive, add being paid attention to of the relevant environmental issue of each based article at present, so, the selecting for use of applied material in packing, that promptly selects quite is important, but using as above-mentioned current packaging mode and paster, is to exist several problems to have to be solved.

See also Fig. 1, be the stereo appearance figure of the container of at present common on the market drink shown in the figure, container 10 as shown in the figure is to be the cup shape, partly work coats or lid covers by printed matter (print film or printing paster all belong to) to have two on its overall appearance at least, one is the appearance 101 of container 10 main bodys, it is to be coated with one first print film 1011, and another then is the mouth-sealed portion 102 of container 10 tops, and it is that lid is covered with one second print film 1021; See also Fig. 2 again, be the composition synoptic diagram of container 10 shown in the figure, as shown in FIG., after container 10 moulding, first print film 1011 is appearance 101 that cover covers or be attached to container 10, if the problem that Gu and waterproof or print film fade, then can add the cuticula 1012 of layer of transparent usually, this cuticula 1012 can directly be overlayed on first print film, 1011 surfaces, so that the printing type face or the pattern on first print film, 1011 surfaces are protected, again, 1021 of second print film are after the beverage filling is finished, lid covers or is attached to the mouth-sealed portion 102 of container 10 tops, and these second print film, 1021 surfaces also can be coated with the cuticula 1022 of layer of transparent again, to reach the function that waterproof or anti-print film fade; In above-mentioned existing print film or paster; font or pattern on its print film plane; be to form with ink printing; and printing ink is organic chemical flux mostly; has toxicity; though there is the dealer to develop the printing ink that is known as food grade at present; yet; the entity situation is if test according to the food Valuation Standard; may all still have suitable edible degree of risk exists; chief reason is that the diet articles for use are in transporting the way; the change of environmental factors such as time of depositing and place; the print film or the paster that all might cause packing change; and the part of printing ink more may be because the change of temperature or humidity; and cause fusing and then oozing out outside print film; situation like this; if the eater in edible process, touch accidentally with; even eat in the mouth; then has the danger that causes the eater to poison; especially with the container of food class, when its eater drinks, be directly to drink with suction pipe or oral cavity; the suitable height of probability of print film on the direct contacting container of human body; if this is not partly protected, then eat the people of this type drink for a long time, the possibility of slow poisoning is promptly arranged.

Because above-mentioned problem, the utility model designer is according to the experience of being engaged in relevant industries for many years, wrappage for the diet articles for use are studied, and analyze the mode of diet articles for use packing, eater's food custom etc., and then develop the utility model print film.

Summary of the invention

At the deficiencies in the prior art, the purpose of this utility model is: but a kind of print film of improving safety is provided.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of print film can to form advertisement, explanation or sign, is characterized in that for fusion attached to a body surface, comprising: a bottom membrane, a printed layers and an overlayer, and wherein: described bottom membrane forms a plane; Described printed layers is molded over the printing ink chromatography on the plane of described bottom membrane; Described overlayer is attached to described printed layers and described bottom membrane top.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be: to sum up, the utility model print film mainly is to utilize an identical bottom membrane of a material and an overlayer, utilize the characteristic that can fit fully with material between the two, the coating that one printed layers is complete, to guarantee that printed layers can not ooze out because of the temperature in the environment, humidity change, guarantee its safe in utilization attached on the diet packing implements; Again, the fusion the when manufactured goods of the utility model print film are useful in Inset ejection molding, respond well after its moulding can ensure safe in utilization again; Comprehensively above-mentioned, the utility model print film is after it implements according to this, but can reach the purpose of the print film that a kind of improving safety is provided really.

Description of drawings

Fig. 1 is the stereo appearance figure of the container of at present common on the market drink;

Fig. 2 is the composition synoptic diagram of container;

Fig. 3 is top view of the present utility model;

Fig. 4 is cut-open view of the present utility model;

Fig. 5 is preferred embodiment of the present utility model (one);

Fig. 6 is the schematic flow sheet of ejection formation processing;

Fig. 7 is another preferred embodiment of the present utility model (two).

Description of reference numerals: 10-container; The 101-appearance; 1011-first print film; The 102-mouth-sealed portion; 1021-second print film; The transparent cuticula of 1022-; The 20-print film; The 201-bottom membrane; The 202-overlayer; The 203-printed layers; 2031-printing ink; The 30-shaping mould; The 301-die cavity; The 302-die; The 41-print film is gone into film; 42-inserts die; 43-sizing material ejection formation; 44-shaping block and print film fusion; The 45-curing molding.

Embodiment

Seeing also Fig. 3, is top view of the present utility model shown in the figure, print film 20 as shown in FIG., and it mainly is to demonstrate literal or pattern, for attaching a specific object table, to reach effects such as forming advertisement, explanation or sign; See also Fig. 4, it shown in the figure cut-open view of the present utility model, print film 20 as shown in the figure, it mainly is made up of three-decker at least, be respectively a bottom membrane 201, one printed layers 203 and an overlayer 202, its manufactured goods promptly as shown in FIG., printed layers 203 is to be subjected to bottom membrane 201 and overlayer 202 complete coatings, and because bottom membrane 201 is identical materials with overlayer 202, promptly by biaxial stretched polypropylene (Bi-axial Oriented PolyPropylene, BOPP) make, between the two after fitting, respond well after it is fitted, so, even the printing ink 2031 of printed layers 203 changes to some extent because of being subjected to factor of environmental, still can not ooze out at bottom membrane 201 and overlayer 202; The print film 20 that the utility model is alleged, when it is made, be, the printing ink 2031 of printed layers 203 is overlapped on the plane that is imprinted on bottom membrane 201 with the plane of bottom membrane 201 as carrying printed layers 203, this bottom membrane 201 is can make transparence on demand or be coloured plane, as white; When the printing ink 2031 of printed layers 203, after finishing cover and being imprinted on the plane of bottom membrane 201, be to pass through again to heat up or, make the printing ink 2031 of printed layers 203 be accomplished fixation with other job operation, after finishing, be attached on its plane with overlayer 202 again; As above; directly cover and contact overlayer 202 on printing ink 2031 planes of printed layers 203; the effect that then has protection printing ink 2031; can prevent that printing ink 2031 from making moist or fade; and between the bottom membrane 201 and overlayer 202 that are in contact with one another, then because of directly fitting mutually, it is subjected to fit after the processing; the one of can fitting completely mutually can more effectively prevent that printing ink 2031 from oozing out.

See also Fig. 5, shown in the figure preferred embodiment of the present utility model (one), the manufactured goods of the utility model print film 20, when it is used, be can be for be preset in a molding 30 in advance, this shaping mould 30 provides the mould as the sizing material ejection formation, its type can design on demand, shaping mould 30 as shown in FIG. is moulds of making cup-like containers, and it is to have a die cavity 301, a die 302; Please arrange in pairs or groups with reference to Fig. 6, be the schematic flow sheet of ejection formation processing shown in the figure, it mainly is in the process of ejection formation, makes print film 20 attached to the shaping block after the moulding (cup-like containers as described in Figure 5) simultaneously, and its step is as follows:

Print film is gone into mould 41: at first, be to be about to the manufactured goods of print film 20 earlier be preset in the die cavity 301 of shaping mould 30, make on interior all disks of print film 20 attached to die cavity 301;

Insert die 42: again die 302 is inserted in die cavity 301, make die 302 fixing after, print film 20 is the peripheries that are looped around die 302, the space between die 302 and the print film 20 promptly becomes the runner that sizing material is injected;

Sizing material ejection formation 43: carry out sizing material and penetrate, sizing material is entered in the runner of shaping mould, fill up whole runner until sizing material, to be shaped to a shaping block (being cup-like containers alleged in the present embodiment);

Shaping block and print film fusion 44: the outer peripheral edges plane of shaping block is to contact with print film 20, and in the process of carrying out because of ejection formation, working temperature is to be enough to make solid-state print film 20 slightly to be molten condition, so, because print film 20 all is in molten condition with shaping block, so can produce mutual fusion between the two, moreover, because of sizing material be polypropylene (PolyPropylene, PP), print film 20 is biaxial stretched polypropylene (Bi-axialOriented PolyPropylene, BOPP), so do not have the problem of repelling, mutual fusion that can be complete between the two, at this moment, only need that the Control work temperature is not higher to get final product;

Curing molding 45: after cooling, make the shaping block curing molding, and print film 20 on the complete outer peripheral edges plane attached to shaping block, reaches effects such as forming advertisement, explanation or sign also because of the process of fusion.

Please arrange in pairs or groups with reference to Fig. 4 as above-mentioned; because complete the surface of print film 20 attached to a shaping block; its effect directly is attached to the shaping block surface as font or the figure with a printed layers 203; its effect is very good; and; because the last plane of the printed layers 203 of print film 20 is the protections that are subjected to overlayer 202; so can effectively prevent the problem that fades or make moist; moreover; because printed layers 203 is to be subjected to the complete coating of bottom membrane 201 and overlayer 202, so, can prevent effectively that the printing ink 2031 of printed layers 203 from oozing out; these manufactured goods are applied on the packing of diet product, are the requirements that can meet security.

Seeing also Fig. 7, is another preferred embodiment of the present utility model (two) shown in the figure, its be shaped to plane, can be for being attached on the object or vessel on plane, its process is described as Fig. 6, please refer to.

To sum up, the utility model print film mainly is to utilize an identical bottom membrane of a material and an overlayer, utilize the characteristic that can fit fully with material between the two, the coating that one printed layers is complete, to guarantee that printed layers can not ooze out because of the temperature in the environment, humidity change, guarantee its safe in utilization attached on the diet packing implements; Again, the fusion the when manufactured goods of the utility model print film are useful in Inset ejection molding, respond well after its moulding can ensure safe in utilization again; Comprehensively above-mentioned, the utility model print film is after it implements according to this, but can reach the purpose of the print film that a kind of improving safety is provided really.

More than explanation is just illustrative for the utility model, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present utility model.

Claims

1. a print film can to form advertisement, explanation or sign, is characterized in that for fusion attached to a body surface, comprising: a bottom membrane, a printed layers and an overlayer, wherein:

Described bottom membrane forms a plane;

Described printed layers is molded over the printing ink chromatography on the plane of described bottom membrane;

Described overlayer is attached to described printed layers and described bottom membrane top.

2. print film according to claim 1 is characterized in that: the material of described bottom membrane is a biaxial stretched polypropylene.

3. print film according to claim 1 is characterized in that: described tectal material is a biaxial stretched polypropylene.

4. print film according to claim 1 is characterized in that: the material of described object is a polypropylene.