CN210011361U - Close effectual cold rendition membrane set composite and cold rendition lithography apparatus of membrane - Google Patents

Abstract

The utility model belongs to the technical field of lithography apparatus, a close effectual cold rendition membrane set composite of membrane is proposed, including cold transfer roller, still include base film roller, laser film roller, close the membrane roller set, the base film roller the cold transfer roller close the membrane roller set gradually and be used for exporting the base film respectively, will rendition glue on the base film, with laser film with the base film closes the membrane, the laser film roller be used for with laser film carries extremely close the membrane to close the membrane roller set, the below of cold transfer roller is provided with gluey pond, closes the membrane roller set and includes bottom roll and last roller down, and forms the gap that is used for laser film and base film to let in the back and merges between the two, the bottom roll setting is in the swing arm down, the swing arm is connected with and is used for making the bottom roll is close to the cylinder of last roller. The utility model discloses still provide cold rendition lithography apparatus, including cold rendition membrane set composite, printing unit, branch membrane device. The utility model provides a base film and laser film close the poor technical problem of membrane effect in the cold rendition printing.

Description

Close effectual cold rendition membrane set composite and cold rendition lithography apparatus of membrane

Technical Field

The utility model belongs to the technical field of lithography apparatus, a close effectual cold rendition membrane set composite and cold rendition lithography apparatus of membrane is related to.

Background

Laser packaging is a subdivision industry in the packaging industry, and rapid development is achieved, compared with other products in the packaging industry, the laser packaging material not only has novel and beautiful appearance effect, but also has high-technology anti-counterfeiting function, and is called as the forefront technical product in the world packaging printing industry. The application field of the laser material is very wide, and the laser material is rapidly popularized in the industries of food, medicine, daily chemical products, cigarette and wine, clothes, gift packaging, decorative materials and the like. In the prior art, a process for preparing a laser printing film by using a UV laser molding press comprises the steps of firstly coating a coating layer for printing on a base film, then sending the base film into the UV laser molding press, heating and softening the coating layer by using the laser molding press, then pressing and printing a laser nickel plate on the softened coating layer by pressurizing, and finally copying laser images and texts on the laser nickel plate onto the coating layer.

SUMMERY OF THE UTILITY MODEL

The utility model provides a close effectual cold rendition membrane set composite and cold rendition lithography apparatus of membrane has solved the above-mentioned problem among the prior art.

The technical scheme of the utility model is realized like this:

the cold transfer printing film compounding device with good film compounding effect comprises a cold transfer printing roller, a base film roller, a laser film roller and a film compounding roller group,

the base film roller, the cold transfer roller and the film combining roller set are sequentially arranged and are respectively used for outputting a base film, transferring glue on the base film and combining a laser film and the base film, the laser film roller is used for conveying the laser film to the film combining roller set for film combination,

the lower part of the cold transfer roller is provided with a rubber pool, the film combining roller group comprises a lower bottom roller and an upper roller, a gap for leading the laser film and the base film into the lower bottom roller and then combining the laser film and the base film is formed between the lower bottom roller and the upper roller, the lower bottom roller is arranged on a swing arm, and the swing arm is connected with a cylinder for enabling the lower bottom roller to be close to the upper roller.

As a further technical scheme, the laser film roller is a laser film roller for arranging a laser film roll, and the base film roller is a base film roller for arranging a base film roll or for guiding a base film on which a pattern is just printed.

The utility model also provides cold transfer printing equipment, which comprises the cold transfer printing film compounding device with good film combination effect and also comprises,

a printing unit for printing a base film in a single color or multi-color and transferring the base film to the base film roll,

and the film separating device is used for separating the composite film after the film combining of the film combining roller into a plastic film with laser patterns and a laser film with patterns removed.

As a further technical scheme, the printing unit, the cold transfer printing film compounding device and the film separating device are sequentially arranged, a winding roller is further arranged between the cold transfer printing film compounding device and the film separating device, and the winding roller is used for winding and rolling plastic, which is subjected to film combination by the cold transfer printing film compounding device, and then sending the plastic to the film separating device for film separation.

As a further technical scheme, the film laminating machine further comprises a plurality of guide rollers which are arranged between the cold transfer roller and the film laminating roller group and between the film laminating roller group and the wind-up roller.

The utility model discloses theory of use and beneficial effect do:

1. in order to solve the problems that the requirement of laser heat transfer printing on a base film is high and the heat transfer printing damages the base film in the prior art, the inventor finally obtains a plastic film cold transfer printing scheme which can be applied to practical production through years of research and numerous failures, wherein the realization of a proper amount of glue for laser pattern transfer printing by a cold transfer roller is a technical difficulty, the inventor researches a form of printing a laser pattern from a normal-temperature glue to the cold transfer roller and then adhering the pattern from a laser film A to a base film B through a large amount of experiments to achieve the good industrial production purpose, the inventor also considers that the glue is difficult to realize thickness control at first, the glue is liquid, the accurate control is difficult to realize on the base film B, the transfer printing effect is poor if the laser pattern transferred is deformed due to too thick glue thickness, and the cold transfer printing of an accurate cleaning pattern is difficult to realize, the inventor thinks about the meditation for a long time again, finally find a solution, through the metal roll body as the basis, can be steel or other materials, electroplate the softer first cladding material of a layer of material on it, wherein the copper plating is better scheme, and carve out the pattern recess that 20 ~ 40 mu m is deep at first cladding material through laser carving, thereby the fine realization is changeed the holding of glue for the rendition, realized the accurate coating of certain thickness glue, and in order to solve the problem that the first cladding material of long-time transportation glue can cause the edge wearing and tearing to influence the glue transportation effect in reality, the inventor has designed and has increased the second cladding material, for chromium plating or nickel chromium plating, thereby fine improvement durable effect, make whole reach satisfied effect.

2. In the whole process of designing the cold transfer roller, the transfer printing can be carried out by selecting any mode, the transfer printing of the laser film can be realized only by simple adhesion and separation after adhesion, the answer is negative, a plurality of problems which are simple in appearance but difficult to solve can be met, and satisfactory products can not be produced, can not realize good laser pattern cold transfer printing, is accompanied with the continuous improvement of a cold transfer printing film compounding device, and finally researches that the film combination form of a laser film A and a base film B is a good direction, thereby set gradually through basic membrane roller, cold transfer roller, close the membrane roller set and realize seeing off basic membrane B, glue the rendition glue of pattern shape with basic membrane B, close membrane B and laser film A, laser film A is sent to closing the membrane roller set by the laser film roller and is closed the membrane to the realization of gluing on basic membrane B, the cold rendition of laser pattern has made the foreshadowing.

3. In the practical production, a plurality of problems can be faced, one of which is difficult to solve is the problem of inaccurate transfer printing, on one hand, after the glue is transferred to the base film B by the cold transfer roller, when the glue is conveyed by the guide roller, the glue is moved, overflowed, deformed or unevenly evaporated, on the other hand, when the film is combined, the glue on the base film B is not flatly adhered to the laser film A, and the base film B which is transferred with the glue in the practical production needs to be dried by the printing unit, so the temperature is higher than the normal temperature, the temperature can be reduced to the normal temperature by a long distance, but still has a plurality of defects, as a result, the edge of the laser pattern transferred to the base film B is still not clear enough, and through the continuous improvement of the inventor, the unexpected discovery, the cooling water channel is additionally arranged in the upper roller of the film combination roller group, the low-temperature state of the upper roller is kept, the edge definition of the, the inventor also continuously thinks why the upper roll of the film roller group can ensure the base film B and the sizing effect of the transfer glue because the base film B with the transfer glue is dried firstly, but the temperature after drying is higher, the thermal motion of glue molecules is violent, so the sizing effect of the glue edge is poor, and meanwhile, the base film B with the higher temperature can cause the dimension to expand compared with the room temperature because of expansion caused by heat and contraction caused by cold, so the two reasons are combined together to cause the unclear edge of the transfer laser pattern, but through improvement, the two problems are overcome, so the edge of the transfer laser pattern achieves the perfect effect; as for the location precision of base film B rendition glue and other printed patterns just can realize solving through current printing unit, do not give unnecessary details here, the inventor is through continuous improvement simultaneously, the roll surface that will go up the roller improves to special fluorine dragon roll surface, make the glue that radium-shine membrane A two sides was glued more can not influence base film B and radium-shine membrane A's accurate conveying, thereby guaranteed the rendition precision, finally make holistic rendition precision obtain fine assurance, very satisfied effect has been reached.

4. In the process of film combination, pattern transfer printing is always lost, so that defective products occur occasionally, the inventor continuously improves the method and finally finds a solution, namely, a gap is arranged at the lower part of an upper roller, a lower bottom roller is used as a press roller, the inventor does not know where the problem appears at first, then the positions of the lower bottom roller and the upper roller are found finally, the film combination positions and the pressed positions of a base film B and a laser film A can influence the laser pattern transfer printing effect, so that the lower bottom roller is arranged at the upper part, the left part and the right part to greatly influence the result, the arrangement position of the lower bottom roller is finally obtained, the lower bottom roller is arranged on a swing arm, and the swing arm is driven by a cylinder to press the upper roller tightly, thereby achieving a very good film combination effect.

5. The packaging film serving as the base film B is subjected to single-color or multi-color printing through a printing unit, glue in the shape of a transfer pattern is added, then the packaging film is combined with the laser film A through a cold transfer film compounding device to obtain a composite film C, and finally the composite film C is divided into a plastic film with laser patterns and a laser film with patterns adhered to the plastic film through a film separating device to obtain the finally required plastic film with laser patterns; in order to ensure the stable tension of the laser film A and the composite film C in the conveying process, more guide rollers are designed between the cold transfer roller and the film combining roller set and between the film combining roller set and the wind-up roller, so that the stability of the system is ensured.

6. In the actual production, the good effect has been achieved through the developed scheme, but the inventor still finds a problem that the laser film A only transfers a small part of the laser pattern after transfer printing, and the larger part of the laser film A is left on the laser film A without other effects, and throwing away the laser film A is probably the only processing mode, the inventor designs a plurality of roll sending modes of the laser film roller after searching and deeply thinking aiming at the problem, namely, a wider base film B corresponds to a plurality of narrower laser films A, the laser film A is only added at the position needing transfer printing, thereby the whole body achieves the good saving effect, the whole cost is well reduced, the roller frame of the laser film roller is provided with a plurality of movable frames, the installation of the plurality of narrower laser films A can be met, and the position of each laser film A can be adjusted, thereby can satisfy the purpose of the radium-shine pattern of different positions rendition on the base film B, the adjustment is through last step, the last guide rail on the lower step, two rows of stagger realization of lower guide rail to can set up a plurality of roller that send on every row, reach very convenient adjustment purpose through the sliding sleeve, and be provided with the locking of locking bolt, the axle of unreeling simultaneously is connected with the magnetic powder clutch and has guaranteed that whole stability that unreels goes on.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the intercooling transfer roller of the present invention;

FIG. 3 is a schematic view of another perspective structure of the intercooling transfer roller of the present invention;

FIG. 4 is a schematic view of the structure of the cooling water channel of the present invention;

fig. 5 is a schematic structural view of a laser film roller according to the present invention;

in the figure: 2-cold transfer film compounding device with good film combination effect, 21-cold transfer roller, 211-metal roller body, 212-first plating layer, 213-pattern depression, 214-second plating layer, 22-base film roller, 23-laser film roller, 231-roller frame, 232-moving frame, 233-unreeling shaft, 234-magnetic powder clutch, 235-upper step, 236-lower step, 237-upper guide rail, 238-lower guide rail, 239-sliding sleeve, 2310-locking bolt, 2311-vertical plate, 2312-bearing, 24-film combination roller set, 241-lower bottom roller, 242-upper roller, 243-gap, 244-cooling water channel, 245-swinging arm, 246-cylinder, 25-glue pool, 3-printing unit and 4-film separation device, 5-wind-up roll, 6-guide roll, A-laser film, B-basement film, A0-laser film roll, B0-basement film roll and C-composite film.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-5, the present invention provides

The cold transfer roller 21 comprises a metal roller body 211, wherein a first plating layer 212 is arranged on the roller surface of the metal roller body 211, and the surface of the first plating layer 212 is provided with a pattern recess 213 for accommodating glue.

Further, a second plating layer 214 for increasing durability is provided on the first plating layer 212.

Further, the first plating layer 212 is specifically a copper plating layer, and the second plating layer 214 is specifically a chromium plating layer or a nickel-chromium plating layer.

Further, the depth of the pattern recess 213 is 20 to 40 μm.

In the embodiment, in order to solve the problems that the requirement of laser heat transfer printing on a base film is high and the base film is damaged by heat transfer printing in the prior art, the inventor finally obtains a plastic film cold transfer printing scheme which can be applied to practical production through years of research and numerous failures, wherein the realization of a proper amount of glue for laser pattern transfer printing by the cold transfer roller 21 is a technical difficulty, the inventor researches a form of printing a watermark to the cold transfer roller 21 through normal temperature glue and then sticking a pattern from a laser film A to a base film B through a large number of experiments to achieve the purpose of good industrial production, and initially, the inventor also considers that the glue is difficult to realize thickness control, the glue is liquid, the glue is difficult to realize accurate control on the base film B, the transfer printing effect is poor if the laser pattern transferred by the thick glue is deformed, and the cold transfer printing of a precisely cleaned pattern is difficult to realize, the inventor finds a solution after long-time thoughts and thoughts, and can be made of steel or other materials by taking the metal roller body 211 as a base, a first coating 212 made of a softer material is electroplated on the metal roller body, wherein a copper coating is a better scheme, and pattern recesses 213 with the depth of 20-40 microns are carved in the first coating 212 through laser, so that the accommodation of glue for transfer printing is well realized, the accurate coating of the glue with a certain thickness is realized, and in order to solve the problem that the edge abrasion is caused to influence the glue transferring effect when the first coating 212 is transferred for a long time in practice, the inventor designs and adds the second coating 214 which is a chromium coating or a nickel-chromium coating, so that the durability effect is well improved, and the overall satisfactory effect is achieved.

The utility model also provides a cold transfer printing film composite device 2, which comprises a cold transfer printing roller 21, a base film roller 22, a laser film roller 23 and a film combining roller group 24, a glue pool 25 is arranged below the cold transfer printing roller 21,

the base film roller 22, the cold transfer roller 21 and the film combining roller group 24 are sequentially arranged and are respectively used for outputting a base film B, transferring glue on the base film B, and combining the laser film A and the base film B, and the laser film roller 23 is used for conveying the laser film A to the film combining roller group 24 for film combination.

The utility model discloses in, at the whole process of cold transfer roller 21 design, also along with choose for use what kind of mode just can be with its rendition, only simple adhesion just can realize the rendition of laser film with the separation after the adhesion, the answer is negative, in fact can face a lot of simple but difficult problems of solving of looking like, can't produce the satisfied product, can't realize fine laser pattern cold transfer, also along with the continuous perfect improvement of cold transfer printing membrane set 2, it is a fine direction to study out the form that laser film A closed the membrane with base film B eventually, through base film roller 22, cold transfer roller 21, close membrane roller set 24 and set gradually thereby realize sending out base film B, glue the rendition glue of pattern shape with base film B, close base film B and laser film A membrane, laser film A is sent to closing membrane roller set 24 by laser film roller 23 and closes the membrane, thereby for the printing of glue on the base film B, the, The realization of the laser pattern cold transfer printing is paved.

Further, the film combining roller set 24 includes a lower bottom roller 241 and an upper roller 242, and a gap 243 for combining the laser film a and the base film B after the laser film a and the base film B are introduced is formed between the lower bottom roller 241 and the upper roller 242, the laser film a gradually descends to the gap 243, and the base film B gradually ascends to the gap 243.

Further, a cooling water passage 244 is provided in the upper roller 242, and the cooling water passage 244 is communicated to a cooling water circulating device.

Further, the surface of the upper roller 242 is a teflon surface.

In the actual production, many problems still face, one of them is the problem of inaccurate transfer printing, on one hand, after the cold transfer roller 21 transfers the glue to the base film B, when the base film B is conveyed by the guide roller, the glue may move and overflow and deform or evaporate unevenly, on the other hand, when the film is combined, the glue on the base film B and the laser film a may be attached unevenly, and in the actual production, the base film B with the glue transferred thereon needs to be dried by the printing unit, so the temperature is higher than the normal temperature, and the temperature can be reduced to the normal temperature over a long distance, but still many defects still exist, as a result, the edge of the laser pattern transferred on the base film B is still not clear enough, and through the continuous improvement of the inventor, it is unexpectedly found that the cooling water channel 244 is additionally arranged in the upper roller 242 of the film combining roller group 24, so as to keep the low temperature state of the upper roller, the edge definition of the laser pattern transferred on the base film B can be well improved, and later-stage inventors also continuously think why the base film B transferred with the glue and the transfer glue setting effect of the base film B can be well ensured by combining the low temperature of the upper roller 242 of the film roller group 24; as for the location precision of base film B rendition glue and other printed patterns just can realize solving through current printing unit, it is not repeated here, the inventor is through improving constantly simultaneously, the roll surface that will go up roller 242 improves to special fluorine dragon roll surface, make the glue that radium-shine membrane A two sides was glued more can not influence base film B and radium-shine membrane A's accurate conveying, thereby guaranteed the rendition precision, finally make holistic rendition precision degree obtain fine assurance, very satisfied effect has been reached.

Further, a slit 243 is provided at a lower portion of the upper roller 242, the lower base roller 241 is provided on a swing arm 245, and a cylinder 246 for making the lower base roller 241 close to the upper roller 242 is connected to the swing arm 245.

Further, the laser film roll 23 is a laser film roll 23 for setting a laser film roll a0, and the base film roll 22 is a base film roll 22 for setting a base film roll B0 or for guiding a base film B on which a pattern has just been printed.

In the utility model, even though the idea is to solve the problems of transfer edge definition and accuracy, a problem which is difficult to be solved is still present, namely, in the process of film combination, some pattern transfer loss always exists, defective products occur occasionally, through continuous improvement of the inventor, the inventor finally finds a solution, namely, the gap 243 is arranged at the lower part of the upper roller 242, the lower bottom roller 241 is used as a compression roller, the inventor does not know where the problem appears at first, then the positions of the lower bottom roller 241 and the upper roller 242 are found finally, the film combination positions and the compression positions of the base film B and the laser film A can influence the transfer effect of the laser pattern, therefore, the lower bottom roller 241 is arranged at the upper part, the left part and the right part to greatly influence the result, the arrangement position of the lower bottom roller 241 is finally obtained, and the lower bottom roller 241 is arranged on the swing arm 245, the swing arm 245 is driven by the air cylinder 246 to press the upper roller 242, so that a good film combining effect is realized.

The utility model also provides a cold transfer printing device, which comprises a cold transfer printing film composite device 2 and a cold transfer printing device,

a printing unit 3 for printing the base film B in a single color or multi-color and feeding it to a base film roll 22,

and the film separating device 4 is used for separating the composite film C after film combination by the film combining roller group 24 into a plastic film with laser patterns and a laser film with patterns removed.

Further, printing unit 3, cold rendition membrane set composite 2, divide membrane device 4 to set gradually, still be provided with wind-up roll 5 between cold rendition membrane set composite 2, the branch membrane device 4, wind-up roll 5 is used for sending to branch membrane device 4 and divide the membrane after the complex film C rolling that closes membrane with cold rendition membrane set composite 2.

Further, the film laminating machine also comprises a plurality of guide rollers 6 which are arranged between the cold transfer roller 21 and the film laminating roller group 24, between the laser film roller 23 and the film laminating roller group 24, and between the film laminating roller group 24 and the wind-up roller 5.

The utility model discloses in, the packaging film as base film B carries out monochromatic or polychrome printing through printing unit 3 earlier, add the glue of rendition pattern shape again, later close the membrane with it and laser film A through cold-transfer die set composite 2 and obtain complex film C, finally divide into the plastic film of taking laser pattern and glue the laser film of removing the pattern through film divider 4 with complex film C, thereby obtain the final required plastic film of taking laser pattern, and cold-transfer die set composite 2 with divide linking between the membrane divider 4, can be directly divide the membrane after closing the membrane, also can design into, divide the membrane after the rolling by wind-up roll 5, divide membrane divider 4 to prior art, can realize fine production through the film divider on the market; in order to ensure the stable tension of the laser film A and the composite film C in the conveying process, more guide rollers 6 are designed between the cold transfer roller 21 and the film combining roller set 24 and between the film combining roller set 24 and the wind-up roller 5, so that the stability of the system is ensured.

Further, the laser film roller 23 comprises a roller frame 231, a plurality of moving frames 232 used for simultaneously providing a plurality of laser films a to be combined with a base film B are arranged on the roller frame 231, unwinding shafts 233 are arranged on the moving frames 232, and the unwinding shafts 233 are connected with magnetic powder clutches 234.

Further, an upper step 235 and a lower step 236 are sequentially arranged on the roller frame 231, an upper guide rail 237 is arranged on the upper step 235, a lower guide rail 238 is arranged on the lower step 236, a plurality of moving frames 232 are slidably arranged on the upper guide rail 237 and the lower guide rail 238,

further, a sliding sleeve 239 slidably disposed on the upper rail 237 or the lower rail 238 is disposed at the bottom of the moving frame 232, a locking bolt 2310 is disposed on the sliding sleeve 239,

the upper portion of the moving frame 232 is provided with a plurality of vertical plates 2311, bearings 2312 are arranged on the vertical plates 2311, and the unreeling shafts 233 are arranged in the bearings 2312.

In the utility model, in the actual production, the good effect has been reached through the developed scheme, but the inventor still finds a problem that the laser film A only transfers a small part after transferring the laser pattern, a larger part is left on the laser film A without other effects, and the laser film A is thrown away in a unique processing mode, the inventor designs a plurality of roll-sending modes of the laser film roller 23 by groping and deeply thinking aiming at the problem, namely, a wider base film B corresponds to a plurality of narrower laser films A, the laser film A only needs to be additionally arranged at the position needing transferring, thereby the whole body achieves the good saving effect, the whole cost is well reduced, the roller frame 231 of the laser film roller 23 is provided with a plurality of movable frames 232, the installation of a plurality of narrower films A can be met, and the position of each laser film A can be adjusted, thereby can satisfy the purpose of the radium-shine pattern of different position renditions on the base film B, the adjustment is through two rows of staggers realizations of last step 235, last guide rail 237 on the lower step 236, lower guide rail 238 to can set up a plurality of roller that send on each row, reach very convenient adjustment purpose through sliding sleeve 239, and be provided with locking bolt 2310's locking, the axle 233 of unreeling simultaneously is connected with magnetic powder clutch 234 and has guaranteed that whole unreels is stable goes on.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The cold transfer printing film compounding device (2) with good film compounding effect is characterized by comprising a cold transfer printing roller (21), a base film roller (22), a laser film roller (23) and a film compounding roller set (24),

the base film roller (22), the cold transfer roller (21) and the film combining roller set (24) are sequentially arranged and are respectively used for outputting a base film (B), transferring glue on the base film (B), and combining a laser film (A) and the base film (B), the laser film roller (23) is used for conveying the laser film (A) to the film combining roller set (24) for film combination,

the lower part of cold transfer roller (21) is provided with gluey pond (25), it includes bottom roller (241) and last roller (242) to close up membrane roller set (24), and forms gap (243) that are used for laser film (A) and base film (B) to let in the back and merge between the two, bottom roller (241) set up on swing arm (245) down, swing arm (245) are connected with and are used for making bottom roller (241) are close to cylinder (246) of last roller (242) down.

2. The cold transfer printing film compounding device (2) with good film combining effect according to claim 1, wherein the laser film roller (23) is a laser film roller (23) for arranging a laser film roll (A0).

3. The film laminating effective cold transfer film laminating apparatus (2) according to claim 1, wherein the base film roll (22) is a base film roll (22) for arranging a base film roll (B0) or for guiding a base film (B) on which a pattern is just printed.

4. The cold transfer printing equipment is characterized by comprising the cold transfer printing film compounding device (2) with good film combination effect according to any one of claims 1 to 3 and further comprising,

a printing unit (3) for printing a base film (B) in a single color or multiple colors and feeding the base film to the base film roll (22),

and the film separating device (4) is used for separating the composite film (C) after the film is combined by the film combining roller group (24) into a plastic film with laser patterns and a laser film with patterns removed.

5. The cold transfer printing equipment according to claim 4, wherein the printing unit (3), the cold transfer printing film compounding device (2) and the film separating device (4) are sequentially arranged, a winding roller (5) is further arranged between the cold transfer printing film compounding device (2) and the film separating device (4), and the winding roller (5) is used for winding and conveying the plastic, which is subjected to film combining, of the cold transfer printing film compounding device (2) to the film separating device (4) for film separating.

6. The cold transfer printing apparatus according to claim 5, further comprising a plurality of guide rollers (6) disposed between the cold transfer roller (21) and the film-combining roller set (24), and between the film-combining roller set (24) and the wind-up roller (5).

Images