CN110634383A

CN110634383A - Label in mould with dazzling effect and production equipment thereof

Info

Publication number: CN110634383A
Application number: CN201910857677.XA
Authority: CN
Inventors: 洪明邓; 王双方
Original assignee: Zhejiang Zhongyu Science And Technology Co Ltd
Current assignee: Zhejiang Zhongyu Science And Technology Co Ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2019-12-31

Abstract

The invention discloses an in-mold labeling with a dazzling effect, which comprises a transparent protective layer, a printing layer, a dazzling film layer and a laminating layer which are sequentially adhered to one another, wherein one side of the laminating layer, which is far away from the dazzling film layer, is matched with the outer surface of a bottle body/injection molding piece. The invention has the following beneficial effects: the prepared in-mold labeling has a novel and bright appearance effect, so that the in-mold labeling can bring excellent visual effect when applied to bottle bodies or injection molding parts.

Description

Label in mould with dazzling effect and production equipment thereof

Technical Field

The invention relates to the field of plastic blow molding products, in particular to an in-mold label with a dazzling effect and production equipment thereof.

Background

The label technology in injection mould is that special pattern is printed on OPP material and then a layer of PP film is compounded, that is, before blow moulding and injection moulding, the printed mould is stuck in the mould and then placed in the mould, and the mould is stuck with the surface of bottle body or injection moulding and fused together under the action of high temp. and high pressure in the mould, so that a finished packing container is formed. The biggest characteristic of the container using the in-mold labeling is that the label and the bottle body are on the same surface, and the color pictures and texts of the label are sensed as if the label is directly printed on the surface of the bottle body.

However, as the aesthetic requirements of people gradually increase, the existing in-mold labeling has no novel and beautiful appearance effect, so that the eyes of people cannot be effectively stimulated. Further, when in-mold labeling is applied to the surface of the bottle or injection molded part, the overall appearance of the bottle or injection molded part cannot give a user an excellent visual effect, and thus, needs to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an in-mold label with a dazzling effect and production equipment thereof, and the prepared in-mold label has a novel and bright appearance effect, so that the in-mold label can bring an excellent visual effect when being applied to a bottle body or an injection molding part.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a label in mould with dazzle effect, includes mutual adhesive transparent protective layer, printing layer in proper order, dazzles dazzling rete and laminating layer, one side of dazzling rete is kept away from on the laminating layer cooperatees with the surface of bottle injection molding.

The invention is further configured to: the printing layer is made by printing patterns or characters on the transparent protective layer through ink.

The invention is further configured to: the printing layer can also be a film with pattern display, in particular to a pattern or hollow pattern which can be printed on the film through ink.

The invention is further configured to: the transparent protective layer is made of BOPP (biaxially-oriented polypropylene), and the laminating layer is made of OPP (oriented polypropylene).

The invention is further configured to: transparent protective layer one side with the printing layer and dazzle and be provided with first glue layer between the rete, dazzle and be provided with the second glue layer between rete and the laminating.

The invention is further configured to: the dazzling film layer can be any one of or the combination of a cat eye film and a laser film.

The invention is further configured to: the first glue layer and the second glue layer are made of high-temperature-resistant glue.

The production equipment for in-mold labeling with the dazzling effect comprises an unwinding device, a contraction ratio adjusting device, a gluing and laminating device, a winding device, a PLC (programmable logic controller) control assembly, a touch display screen and a frequency converter, wherein the unwinding device comprises a BOPP (biaxially-oriented polypropylene) film unwinding mechanism, a dazzling film layer unwinding mechanism and an OPP (oriented polypropylene) film unwinding mechanism, and the dazzling film layer unwinding mechanism is positioned between the BOPP film unwinding mechanism and the OPP film unwinding mechanism;

the BOPP film unwinding mechanism, the dazzling film layer unwinding mechanism and the OPP film unwinding mechanism respectively comprise an unwinding roller, a driven roller and an unwinding tension adjusting roller, one side of the unwinding roller is electrically connected with an unwinding variable frequency motor, one side of the unwinding tension adjusting roller is electrically connected with an unwinding tension detecting device, and the output end of the unwinding tension detecting device is connected with an unwinding frequency converter for controlling the rotating speed of the unwinding variable frequency motor;

the winding device comprises a winding roller, a traction roller, a driven roller and a winding tension adjusting roller, wherein one side of the winding roller is electrically connected with a winding variable frequency motor, one side of the winding tension adjusting roller is electrically connected with a winding tension detection device, and the output end of the winding tension detection device is connected with a winding frequency converter for controlling the rotating speed of the winding variable frequency motor.

The invention is further configured to: the shrinkage ratio adjusting device comprises a shell, and a BOPP film shrinkage ratio adjusting piece, a dazzling film layer shrinkage ratio adjusting piece and an OPP film shrinkage ratio adjusting piece which are positioned in the shell, wherein the dazzling film layer shrinkage ratio adjusting piece is positioned between the BOPP film shrinkage ratio adjusting piece and the OPP film shrinkage ratio adjusting piece;

the BOPP film shrinkage ratio adjusting part, the dazzling film layer shrinkage ratio adjusting part and the OPP film shrinkage ratio adjusting part respectively comprise five heating rollers, the rotating speeds of the five heating rollers are sequentially decreased, an electric heating pipe capable of heating the heating rollers is arranged in each heating roller, one side of each heating roller is connected with a variable frequency motor driving the heating roller to rotate, each variable frequency motor is connected with a frequency converter controlling the rotating speed of the variable frequency motor, and the PLC control assembly is respectively connected with the touch display screen and each frequency converter.

The invention is further configured to: the gluing and laminating device comprises a gluing piece and a laminating piece, wherein the gluing piece comprises a gluing roller and a lower gluing roller which are matched with each other, a gap through which a dazzling film layer can pass is formed between the gluing roller and the lower gluing roller, the gap is larger than the thickness of the dazzling film layer so as to allow the dazzling film layer to pass, one side, away from the lower gluing roller, of the gluing roller is matched with the BOPP film, and one side, away from the gluing roller, of the lower gluing roller is matched with the OPP film;

the gluing piece also comprises a first aerosol glue spraying piece and a second aerosol glue spraying piece which are used for spraying glue on two surfaces of the dazzling film layer respectively, the first aerosol glue spraying part and the second aerosol glue spraying part both comprise aerosol glue spraying nozzles, the air flow containing glue liquid sprayed out by the aerosol glue spraying nozzles in the first aerosol glue spraying part passes through the area between the gluing roller and the dazzling film layer, the air current containing glue solution sprayed out by the aerosol glue-spraying nozzles in the second aerosol glue-spraying piece passes through the area between the lower rubber roll and the dazzling film layer, each aerosol glue-spraying nozzle is internally provided with a temperature control device for controlling the temperature of the sprayed air current containing glue solution to be consistent with the temperature of the dazzling film layer, the inner parts of the upper rubber roller and the lower rubber roller are both provided with a ventilation cavity, the surface of the upper rubber roller is provided with a ventilation hole communicated with the ventilation cavity, the number of the vent holes is three, the vent holes are arranged at equal intervals, and the vent cavities are communicated with an air extraction device;

the pressfitting spare is including last compression roller and the lower compression roller of mutually supporting, it can let BOPP membrane, dazzling rete and OPP membrane pass through the space simultaneously to go up to be provided with between compression roller and the lower compression roller, the size in space is less than BOPP membrane, dazzling rete and the thickness that OPP membrane three adds.

In conclusion, the invention has the following beneficial effects: the printing layer is sandwiched between the transparent protective layer and the dazzling film layer, so that the printing layer is not in contact with objects and people, and further the fading of the printing layer in the long-term use process is avoided under the protection effect of the transparent protective layer. Meanwhile, the dazzling film layer can be any one of the cat eye film and the laser film, or the cat eye film and the laser film are combined for use. The cat eye film is an optical lens array imaging film, is strong in stereoscopic impression and high in transparency, has a wide-angle effect of a lens, reduces images, enlarges the visual field, can reflect a plurality of reduced images of an observed object, is very novel, and is called as the cat eye film because the viewing effect is extremely similar to that of a cat eye. Because the cat eye film is colorless and transparent, if the cat eye film becomes more glittering and dazzling after coloring or aluminizing, the decorative effect can be obviously improved. Therefore, the cat eye mask has strong three-dimensional special effect and excellent dazzling effect.

In addition, the laser film is divided into a BOPP laser film, a PET laser film and a PVC laser film according to product composition, holographic images with rainbow dynamic and three-dimensional effects are transferred to PET, BOPP, PVC or coated base materials through mould pressing, then certain laser effect is obtained on the surface of the commodity package by using compounding, hot stamping, transferring and other modes, and further the in-mould labeling with the laser film has novel and bright appearance effect and excellent dazzling effect.

And combine together based on dazzling rete and printing layer for the pattern that has on dazzling rete produced under light shines and the printing layer combines together, makes the pattern on the printing layer also have bright dazzling effect concurrently, and then can bring splendid visual effect for bottle or injection molding.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of an in-mold label of the present invention;

FIG. 2 is a control schematic diagram of the production apparatus for in-mold labeling of the present invention;

FIG. 3 is a simplified control diagram of a PLC control assembly;

FIG. 4 is a schematic structural diagram of the gluing roller, the glue roller, the dazzling film layer and the aerosol spraying piece.

Reference numerals: 1. a transparent protective layer; 2. printing layer; 3. a glare film layer; 4. laminating layers; 5. a first glue layer; 6. a second glue layer; 7. an unwinding device; 8. a contraction ratio adjusting device; 9. a gluing and pressing device; 10. a winding device; 11. a PLC control component; 12. a touch display screen; 13. a BOPP film unwinding mechanism; 14. an unwinding mechanism for the dazzling film layer; 15. an OPP film unwinding mechanism; 16. unwinding rollers; 17. a driven roller; 18. unwinding tension adjusting rollers; 19. unwinding a variable frequency motor; 20. an unwinding tension detection device; 21. unwinding a frequency converter; 22. a wind-up roll; 23. a traction roller; 24. a driven roller; 25. a winding tension adjusting roller; 26. winding a variable frequency motor; 27. a winding tension detection device; 28. a winding frequency converter; 29. a housing; 30. a BOPP film shrinkage ratio adjusting piece; 31. a dazzling film shrinkage ratio adjusting piece; 32. an OPP film shrinkage ratio adjusting piece; 33-37, heated rolls; 38. a lower pressing roller; 39. gluing parts; 40. a pressing part; 41. gluing a rubber roller; 42. a rubber roller is arranged; 43. a first aerosol spray part; 44. a second aerosol spray part; 45. an aerosol glue-spraying nozzle; 46. a venting cavity; 47. a vent hole; 48. and (4) pressing the rolls.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

The first embodiment is as follows:

as shown in fig. 1, an in-mold label with a dazzling effect comprises a transparent protective layer 1, a printing layer 2, a dazzling film layer 3 and an attaching layer 4 which are sequentially adhered to each other, wherein one side of the attaching layer 4 is attached to the outer surface of a bottle body or an injection molding part at a high temperature.

Further, the dazzling film layer 3 can be any one of or a combination of a cat eye film and a laser film.

Specifically, the following are mentioned: the printing layer 2 is sandwiched between the transparent protective layer 1 and the dazzling film layer 3, so that the printing layer 2 is not in contact with objects and people, and further, the color fading of the printing layer in the long-term use process is avoided under the protection effect of the transparent protective layer 1. Meanwhile, the dazzling film layer 3 can be any one of a cat eye film and a laser film, or the cat eye film and the laser film are used simultaneously. The cat eye film is an optical lens array imaging film, is strong in stereoscopic impression and high in transparency, has a wide-angle effect of a lens, reduces images, enlarges the visual field, can reflect a plurality of reduced images of an observed object, is very novel, and is called as the cat eye film because the viewing effect is extremely similar to that of a cat eye. Because the cat eye film is colorless and transparent, if the cat eye film becomes more glittering and dazzling after coloring or aluminizing, the decorative effect can be obviously improved. Therefore, in conclusion, the cat eye mask has very strong three-dimensional special effect and excellent dazzling effect.

And combine together with printing layer 2 based on dazzling rete 3 for the pattern that has on dazzling rete 3 produced under light shines combines together on dazzling effect and the printing layer 2, makes the pattern on the printing layer 2 also have bright dazzling effect concurrently, and then can bring splendid visual effect for bottle or injection molding.

Further, the printing layer 2 is formed by printing a pattern or characters on the transparent protective layer 1 by ink.

Furthermore, the transparent protection layer 1 is made of a material with good printing effect and high transparency. The material is preferably BOPP.

Further, the printing layer 2 may be a film with a pattern display, specifically, a pattern or a hollow pattern may be printed on the film by ink.

Further, a first glue layer 5 is arranged between one side of the transparent protection layer 1 with the printing layer 2 and the dazzling film layer 3. A second glue layer 6 is arranged between the dazzling film layer 3 and the laminating layer 4.

Further, the material of the adhesive layer 4 is preferably OPP.

Further, the first glue layer 5 and the second glue layer 6 are preferably made of high temperature resistant glue, and the high temperature resistant standard is preferably high temperature resistant more than 100 ℃.

Example two:

as shown in fig. 2-4, the apparatus for producing an in-mold label with a dazzling effect includes an unwinding device 7, a contraction ratio adjusting device 8, a gluing and pressing device 9, a winding device 10, a PLC control component 11, a touch display screen 12, and a frequency converter. Unwinding device 7 is including BOPP membrane unwinding mechanism 13, dazzling rete unwinding mechanism 14 and OPP membrane unwinding mechanism 15, and dazzling rete unwinding mechanism 14 is located between BOPP membrane unwinding mechanism 13 and OPP membrane unwinding mechanism 15.

The BOPP film unwinding mechanism 13, the glare film unwinding mechanism 14, and the OPP film unwinding mechanism 15 each include an unwinding roller 16, a driven roller 17, and an unwinding tension adjusting roller 18. One side of the unwinding roller 16 is electrically connected with an unwinding variable frequency motor 19, one side of the unwinding tension adjusting roller 18 is electrically connected with an unwinding tension detection device 20, and an output end of the unwinding tension detection device 20 is connected with an unwinding frequency converter 21 for controlling the rotating speed of the unwinding variable frequency motor 19.

The winding device 10 comprises a winding roller 22, a traction roller 23, a driven roller 24 and a winding tension adjusting roller 25. One side of the winding roller 22 is electrically connected with a winding variable frequency motor 26, one side of the winding tension adjusting roller 25 is electrically connected with a winding tension detecting device 27, and the output end of the winding tension detecting device 27 is connected with a winding frequency converter 28 for controlling the rotating speed of the winding variable frequency motor 26.

The shrinkage ratio adjusting device 8 comprises a shell 29, and a BOPP film shrinkage ratio adjusting piece 30, a dazzling film layer shrinkage ratio adjusting piece 31 and an OPP film shrinkage ratio adjusting piece 32 which are positioned in the shell 29, wherein the dazzling film layer shrinkage ratio adjusting piece 31 is positioned between the BOPP film shrinkage ratio adjusting piece 30 and the OPP film shrinkage ratio adjusting piece 32.

The BOPP film shrinkage ratio adjusting member 30, the glare film layer shrinkage ratio adjusting member 31, and the OPP film shrinkage ratio adjusting member 32 each include

heating rollers

33, 34, 35, 36, 37. Every warming mill all embeds has the electric heating pipe that can heat the warming mill, and one side of every warming mill all is connected with and drives its pivoted inverter motor, and every inverter motor is connected with the converter of its rotational speed of control.

The PLC control unit 11 is connected to the touch display 12 and the frequency converter (including the unwinding frequency converter 21, the winding frequency converter 28, and the frequency converter for controlling the rotation of the heating roller). The touch display screen 12 is used as an input end, transmits the control signal to the PLC control assembly 11, and sends the control signal to each frequency converter control motor to realize speed regulation after being analyzed and processed by the PLC control assembly 11. In the application, the unreeling device 7 realizes the active unreeling with constant tension and constant linear speed by forming a closed-loop control system by an unreeling frequency conversion motor 19, an unreeling frequency converter 21, an unreeling tension adjusting roller 18 and an unreeling tension detecting device 20; the winding device 10 adopts the same principle as the unwinding device 7 to realize active winding with constant tension and constant linear velocity.

Because the in-mold labeling is formed by compounding a plurality of layers, the shrinkage rate of each layer of material is different because the material used by each layer is different, and the prepared in-mold labeling has the problems of wrinkles, curls and the like. By matching the exterior surface of the bottle/injection molded part with a wrinkled, curled in-mold label, the external aesthetics of the product is affected. Therefore, when the label is formed in the mold with wrinkles and curls in actual production, the label is often regarded as a newspaper waste and is not distributed in the market. But at the same time, the production cost of the enterprise is increased, and the economic benefit of the enterprise is reduced.

Because the shrinkage rates of the BOPP film, the dazzling film layer and the OPP film which enter the shrinkage ratio adjusting device 8 at different temperatures are different, the shrinkage ratios of the BOPP film, the dazzling film layer and the OPP film are adjusted by the BOPP film shrinkage ratio adjusting part 30, the dazzling film layer shrinkage ratio adjusting part 31 and the OPP film shrinkage ratio adjusting part 32 after entering the shrinkage ratio adjusting device 8, so that the shrinkage ratios of the BOPP film, the dazzling film layer and the OPP film after coming out of the shrinkage ratio adjusting device 8 are consistent, the BOPP film, the dazzling film layer and the OPP film are compounded into an in-mold label with a specific seven-color effect by the gluing and pressing device 9, and finally the in-mold.

The shrinkage ratio adjusting principle of the BOPP film shrinkage ratio adjusting piece 30, the dazzling film layer shrinkage ratio adjusting piece 31 and the OPP film shrinkage ratio adjusting piece 32 is as follows: in this embodiment, the shrinkage ratio of the BOPP film is adjusted by the BOPP film shrinkage ratio adjusting unit 30. The adjusting principle of the dazzling film shrinkage ratio adjusting piece 31 and the OPP film shrinkage ratio adjusting piece 32 is consistent with that of the BOPP film shrinkage ratio adjusting piece 30, and detailed description is omitted here. Wherein, the dazzling film layer selects either one of the cat eye film or the laser film or the combination of the two films according to the packaging requirements. The shrinkage ratio of the cat-eye film or the laser film is determined according to the selected material, and the shrinkage ratio is a value determined in the prior art and is not obtained by an experiment designed by the application.

Five

heating rollers

33, 34, 35, 36, 37 are included in the BOPP film shrinkage ratio adjusting member 30, and the rotation speeds of the five heating rollers are sequentially decreased. The BOPP film is continuously shrunk through five heating rollers in sequence, and finally is taken out from the shell 29 under the driving of the winding device 10, and is wound. The temperature of each heating roller is independently controlled, and a temperature control system is formed by a temperature sensor, a temperature control meter, an electric heater pipe and the like so as to ensure that the temperature of each heating roller is adjustable. This is prior art and will not be described in detail herein.

When the BOPP film passes through five heating rollers in sequence, each heating roller is provided with a variable frequency motor and a frequency converter to control the rotating speed of the variable frequency motor and the frequency converter. The rotating speed of the heating roller can indicate the contact time of the heating roller and the BOPP film. When the rotation speed of the heating roller is reduced, the time of contact with the heating roller increases. The contact time of the BOPP film at a certain temperature is different, and the shrinkage is different. To achieve the adjustment of the predetermined shrinkage amount, it is necessary to determine the time t required for the BOPP film to pass through the five heated rollers, the temperature of the heated rollers, and the total length of the stroke through the five heated rollers as S meters, and set n% as the shrinkage rate.

The unwinding linear speed is V1= (1+ n%) S/t, and the winding linear speed is V2= V1 (1-n%), yielding V2/V1 = 1-n%. The surface linear velocity of the heating roller 33 is matched with the unwinding linear velocity, and the surface linear velocity of the heating roller 37 is matched with the winding linear velocity.

If a BOPP film with low shrinkage as disclosed in CN105829409B was used for the in-mold labeling described in this application. The patent document shows that the shrinkage of BOPP is 3.0-6.0% at 120 ℃ for 5 min. The median value of this value, i.e. n%, was taken to be 4.5% in the test. Thus, in the case where the time required to pass through the five heating rollers and the total length of the stroke passing through the five heating rollers are determined, the unwinding linear speed V1 and the winding linear speed V2 can be calculated.

It is assumed that the respective shrinkage rates of the OPP film and the glare film layer are 10% at the respective temperatures. The shrinkage of the BOPP film needs to be adjusted to 10% to achieve the same shrinkage as the OPP film and the glare film layer. Therefore, the three films compounded with each other have the same shrinkage rate, so that the prepared in-mold label with the colorful effect has no wrinkles and no curls.

Then, in the case where the BOPP film unwinding linear speed is known as V1, the winding linear speed V2 is obtained by substituting a value where n% is 10% into the winding linear speed V2= V1 (1-n%). The rotation speeds of the five heated rollers in the BOPP film shrinkage ratio adjusting member 30 are sequentially decreased. When the unwinding linear speed, that is, the linear speed of the heating roller 33 is not changed, the winding linear speed, that is, the linear speed of the heating roller 37 is reduced, so that the contact time between the BOPP film and the five heating rollers becomes longer, and the shrinkage thereof becomes larger. The principle of adjusting the shrinkage rates of the OPP film and the dazzling film layer is the same as that described above. And will not be described in detail herein.

As shown in fig. 2 and 4, the gluing and pressing device 9 comprises a gluing member 39 and a pressing member 40.

The gluing part 39 comprises a gluing roller 41 and a gluing roller 42 which are matched with each other, a gap through which the dazzling film layer can pass is arranged between the gluing roller 41 and the gluing roller 42, and the gap is larger than the thickness of the dazzling film layer so as to allow the dazzling film layer to pass. One side of the upper rubber roller 41, which is far away from the lower rubber roller 42, is matched with the BOPP film, and one side of the lower rubber roller 42, which is far away from the upper rubber roller 41, is matched with the OPP film. The gluing part 39 further includes a first aerosol spraying part 43 and a second aerosol spraying part 44 for spraying glue on two sides of the dazzling film layer. The first aerosol glue spraying piece 43 and the second aerosol glue spraying piece 44 both comprise aerosol glue spraying nozzles 45, the air flow containing glue liquid sprayed out of the aerosol glue spraying nozzles 45 in the first aerosol glue spraying piece 43 passes through the area between the upper rubber roll 41 and the dazzling film layer, and the air flow containing glue liquid sprayed out of the aerosol glue spraying nozzles 45 in the second aerosol glue spraying piece 44 passes through the area between the lower rubber roll 42 and the dazzling film layer.

All be provided with the temperature control device who controls the blowout and contain the air current temperature of glue solution in every aerial fog spouts jiao zui 45 for the blowout contains glue solution air current temperature and dazzles the temperature of rete unanimously, avoids the blowout to contain the air current of glue solution to take place expend with heat and contract with cold and influence dazzling the rete.

The inner parts of the gluing roller 41 and the lower gluing roller 42 are both provided with ventilation cavities 46, the surface of the gluing roller 41 is provided with ventilation holes 47 communicated with the ventilation cavities 46, and the number of the ventilation holes 47 is three and the ventilation holes 47 are arranged at equal intervals. The vent cavity 46 communicates with a suction device.

Glue piece 43 and second aerosol through setting up first aerosol respectively on dazzling the upper and lower two sides of rete and spout glue piece 44, through utilizing aerosol to spout the air current that glue nozzle 45 spun contains glue and circulate between the rubber roll and dazzling the rete to make dazzling the rete when the clearance that forms between gluing roller 41 and lower rubber roll 42, can not contact with the rubber roll of its both sides, and then can not shutoff air vent 47. The air flow diffused all around after the glue is sprayed onto the surface of the glare film layer is sucked into the ventilation cavity 46 by the suction action of the suction device to eliminate part of the diffused air flow. Meanwhile, the upper glue roller 41 can adsorb the BOPP film on one side thereof only to the surface of the upper glue roller 41, and the lower glue roller 42 can adsorb the OPP film on one side thereof only to the surface of the lower glue roller 42. Once the air flow containing the glue solution is sucked into the ventilation cavity 46, the glue solution with a certain mass is centrifugally thrown out to the BOPP film (or OPP film) or the dazzling film layer under the centrifugal action of the self rotating speed of the rubber roller.

Further, pressfitting piece 40 is including last compression roller 48 and the lower compression roller 38 of mutually supporting, goes up the compression roller 48 and is provided with the space that can let BOPP membrane, dazzling rete and OPP membrane pass through simultaneously down between the compression roller 38, and the size in this space is less than the thickness that BOPP membrane, dazzling rete and OPP membrane three add to the realization carries out the pressfitting to the three. And glue solution is sprayed on both sides of the dazzling film layer, so that both sides of the dazzling film layer can be respectively compounded with the BOPP film and the OPP film under the action of external force. The compounded in-mold label is wound by a winding device 10.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. An in-mold labeling with a dazzling effect is characterized in that: including transparent protective layer (1), printing layer (2), dazzling rete (3) and laminating layer (4) that bond each other in proper order, one side that dazzling rete (3) were kept away from in laminating layer (4) cooperatees with the surface of bottle injection molding.

2. The in-mold label with a glare effect of claim 1, wherein: the printing layer (2) is made by printing patterns or characters on the transparent protective layer (1) through printing ink.

3. The in-mold label with a glare effect of claim 1, wherein: the printing layer (2) can also be a film with pattern display, in particular to a pattern or hollow pattern which can be printed on the film through ink.

4. The in-mold label with a glare effect of claim 2, wherein: the transparent protective layer (1) is made of BOPP (biaxially-oriented polypropylene), and the laminating layer (4) is made of OPP (oriented polypropylene).

5. The in-mold label with a glare effect of claim 4, wherein: transparent protective layer (1) one side with printing layer (2) and dazzle and be provided with first glue layer (5) between rete (3), dazzle and be provided with second glue layer (6) between rete (3) and laminating (4).

6. The in-mold label with a glare effect of claim 2, wherein: the dazzling film layer (3) can be any one of or the combination of a cat eye film and a laser film.

7. An in-mold label with a glare effect as claimed in claim 5, wherein: the first glue layer (5) and the second glue layer (6) are made of high-temperature-resistant glue.

8. The apparatus for producing an in-mold label with a dazzling effect according to claim 6, wherein: the winding device comprises an unwinding device (7), a shrinkage ratio adjusting device (8), a gluing pressing device (9), a winding device (10), a PLC (programmable logic controller) control assembly (11), a touch display screen (12) and a frequency converter, wherein the unwinding device (7) comprises a BOPP film unwinding mechanism (13), a dazzling film unwinding mechanism (14) and an OPP film unwinding mechanism (15), and the dazzling film unwinding mechanism (14) is located between the BOPP film unwinding mechanism (13) and the OPP film unwinding mechanism (15);

the BOPP film unwinding mechanism (13), the dazzling film unwinding mechanism (14) and the OPP film unwinding mechanism (15) respectively comprise an unwinding roller (16), a driven roller (17) and an unwinding tension adjusting roller (18), one side of the unwinding roller (16) is electrically connected with an unwinding variable frequency motor (19), one side of the unwinding tension adjusting roller (18) is electrically connected with an unwinding tension detecting device (20), and the output end of the unwinding tension detecting device (20) is connected with an unwinding frequency converter (21) for controlling the rotating speed of the unwinding variable frequency motor (19);

the winding device (10) comprises a winding roller (22), a traction roller (23), a driven roller (24) and a winding tension adjusting roller (25), wherein one side of the winding roller (22) is electrically connected with a winding variable frequency motor (26), one side of the winding tension adjusting roller (25) is electrically connected with a winding tension detection device (27), and the output end of the winding tension detection device (27) is connected with a winding frequency converter (28) for controlling the rotating speed of the winding variable frequency motor (26).

9. The apparatus for producing an in-mold label with a dazzling effect according to claim 6, wherein: the shrinkage ratio adjusting device (8) comprises a shell (29), and a BOPP film shrinkage ratio adjusting piece (30), a dazzling film layer shrinkage ratio adjusting piece (31) and an OPP film shrinkage ratio adjusting piece (32) which are positioned in the shell (29), wherein the dazzling film layer shrinkage ratio adjusting piece (31) is positioned between the BOPP film shrinkage ratio adjusting piece (30) and the OPP film shrinkage ratio adjusting piece (32);

BOPP membrane shrinkage ratio regulating part (30), dazzling rete shrinkage ratio regulating part (31) and OPP membrane shrinkage ratio regulating part (32) all include warming mill (33), (34), (35), (36), (37), the rotational speed of warming mill (33), (34), (35), (36), (37) is degressive in proper order, every the warming mill all embeds has the electric heating pipe that can heat the warming mill, every one side of warming mill all is connected with the inverter motor who drives its rotation, every inverter motor is connected with the converter of control its rotational speed, PLC control assembly (11) are connected with touch display screen (12), each converter respectively.

10. The apparatus for producing an in-mold label with a dazzling effect according to claim 6, wherein: the gluing and laminating device (9) comprises a gluing part (39) and a laminating part (40), the gluing part (39) comprises a gluing roller (41) and a lower gluing roller (42) which are matched with each other, a gap through which a dazzling film layer can pass is arranged between the gluing roller (41) and the lower gluing roller (42), the gap is larger than the thickness of the dazzling film layer so as to pass through the dazzling film layer, one side, far away from the lower gluing roller (42), of the gluing roller (41) is matched with a BOPP film, and one side, far away from the gluing roller (41), of the lower gluing roller (42) is matched with the OPP film;

the gluing part (39) further comprises a first aerosol glue spraying part (43) and a second aerosol glue spraying part (44) which respectively spray glue on two sides of the dazzling film layer, the first aerosol glue spraying part (43) and the second aerosol glue spraying part (44) both comprise aerosol glue spraying nozzles (45), the airflow containing glue liquid sprayed by the aerosol glue spraying nozzles (45) in the first aerosol glue spraying part (43) passes through the area between the gluing roller (41) and the dazzling film layer, the airflow containing glue liquid sprayed by the aerosol glue spraying nozzles (45) in the second aerosol glue spraying part (44) passes through the area between the gluing roller (42) and the dazzling film layer, each aerosol glue spraying nozzle (45) is internally provided with a temperature control device which controls the temperature of the airflow containing glue liquid sprayed to be consistent with the temperature of the dazzling film layer, and ventilation cavities (46) are arranged inside the gluing roller (41) and the gluing roller (42), the surface of the gluing roller (41) is provided with vent holes (47) communicated with the vent cavities (46), the number of the vent holes (47) is three, the vent holes are arranged at equal intervals, and the vent cavities (46) are communicated with an air extractor;

the laminating spare (40) is including last compression roller (48) and lower compression roller (38) of mutually supporting, it can let BOPP membrane, dazzling rete and OPP membrane pass through the space simultaneously to be provided with between last compression roller (48) and lower compression roller (38), the size in space is less than BOPP membrane, dazzling rete and the thickness that OPP membrane three adds.