CN111361320B - Color printing process for packaging bag - Google Patents
Color printing process for packaging bag Download PDFInfo
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- CN111361320B CN111361320B CN202010334664.7A CN202010334664A CN111361320B CN 111361320 B CN111361320 B CN 111361320B CN 202010334664 A CN202010334664 A CN 202010334664A CN 111361320 B CN111361320 B CN 111361320B
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- roller
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- base material
- over
- color printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/14—Multicolour printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/009—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using thermal means, e.g. infrared radiation, heat
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention relates to a color printing process of a packaging bag, which comprises the following steps: step A: unreeling, namely unreeling the base material; and B: the front side color printing is used for printing the surface of one side of the base material; and C: changing the surface, turning over the base material and conveying the base material forwards along the original direction; step D: aligning, namely aligning the starting point of the pattern of the printing roller with the starting point of the pattern on the front surface of the base material; step E: b, reverse color printing, namely printing the reverse side of the printed side in the step B; step F: cooling, namely cooling the printed base material; step G: and (6) rolling, namely rolling the cooled base material. The invention has the effect of printing on both sides of the base material.
Description
Technical Field
The invention relates to the field of packaging bag manufacturing, in particular to a color printing process of a packaging bag.
Background
The wrapping bag is used for holding the packing to all kinds of products, and food package bag wherein generally is the combined material wrapping bag more than two-layer, simultaneously, in order to make the outer packing bag can carry out obvious differentiation, often all can do the printing of coloured pattern or characters in the surface of wrapping bag, and the printing equipment of wrapping bag generally chooses for use high-speed gravure press.
The invention with the prior patent publication number of CN109703174A provides a unit type photogravure press, which comprises an unwinding frame and a winding frame, wherein a plurality of printers which are sequentially arranged and can sequentially print different colors on printing paper are arranged between the unwinding frame and the winding frame, the unwinding frame is rotatably connected with an unwinding roller, an adjusting mechanism which can adjust the height of the unwinding roller according to the amount of the printing paper on the unwinding roller is arranged between the unwinding roller and the unwinding frame, the winding frame is rotatably connected with a winding roller, and the winding frame is provided with a driving structure which can drive the winding roller to rotate so as to wind the printing paper on the unwinding roller to the winding roller through the printers.
The above prior art solutions have the following drawbacks: the transparent packaging film is sequentially printed with patterns or characters by the arranged printers in the conveying process, but the patterns can be printed only on one side surface of the film in such a way, so that the patterns are printed shallowly.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a color printing process for a packaging bag, which can print two sides of a base material.
The above object of the present invention is achieved by the following technical solutions: a color printing process of a packaging bag comprises the following steps:
step A: unreeling, namely unreeling the base material;
and B: the front side color printing is used for printing the surface of one side of the base material;
and C: changing the surface, turning over the base material and conveying the base material forwards along the original direction;
step D: aligning, namely aligning the starting point of the pattern of the printing roller with the starting point of the pattern on the front surface of the base material;
step E: b, reverse color printing, namely printing the reverse side of the printed side in the step B;
step F: cooling, namely cooling the printed base material;
step G: and (6) rolling, namely rolling the cooled base material.
Through adopting above-mentioned technical scheme, after carrying out the pattern printing to one of them side surface of substrate, carry out the turn-over to the substrate to make the substrate keep original direction and carry forward, thereby can print the two-sided of substrate, rely on the pattern coincidence that the register can make two-sided two, thereby make the two-sided pattern of transparent substrate can aim at, and then deepen holistic pattern degree of depth, also can realize two-sided color printing according to the different effects that show.
The present invention in a preferred example may be further configured to: step C including the turn-over mechanism in the face of trading, the turn-over mechanism includes the support body, is perpendicular and rotates with substrate direction of delivery and connects in the entering roller of support body, be the acute angle setting with the entering roller and connect in the first switching-over roller of support body, be located first switching-over roller and keep away from entering between roller one end and the entering roller and connect in the transition roller of support body, be the center with first switching-over roller perpendicular and with first switching-over roller in the not co-altitude plane and connect in the second switching-over roller of support body, be the acute angle setting with the second switching-over roller and be parallel and connect in the derivation roller of support body with the entering roller.
Through adopting above-mentioned technical scheme, the substrate that will print one of them side passes in proper order and gets into roller, first switching-over roller, transition roller, second switching-over roller and derives the roller to make the substrate can realize the turn-over and make the substrate still convey and realize the printing along original direction, thereby make the substrate can realize two-sided printing, promote the colour depth and the quality of printing pattern, can not produce the destruction to the substrate simultaneously.
The present invention in a preferred example may be further configured to: two the switching-over roller intercommunication has the subassembly of weathering, and two switching-over rollers are cavity and have seted up a plurality of exhaust vents, the exhaust vent is seted up in one side of first switching-over roller and second switching-over roller and substrate laminating, the exhaust vent is axial array and along circumference array along first switching-over roller and second switching-over roller, it includes the heat source, feeds through in the air-blower of heat source, feeds through in the air-blower and feeds through respectively in the inside air-supply line of first switching-over roller and second switching-over roller to weather the subassembly, be provided with adjusting valve on the air-supply line.
Through adopting above-mentioned technical scheme, utilize and weather the subassembly and can supply air to first switching-over roller and second switching-over roller inside to make wind blow off from the exhaust vent, weather the pattern that substrate surface printed, utilize the air-blower can be with the hot-blast exhaust vent that the air-supply line followed first, second switching-over roller of hot-blast passing air of heat source to send out, and can utilize adjusting valve to adjust the air output according to the difference of actual coating, accomplish better effect of drying.
The present invention in a preferred example may be further configured to: the both ends of first switching-over roller and/or second switching-over roller all articulate there is the installation piece, the support body rotates and is connected with the adjusting screw who is threaded connection with the installation piece, adjusting screw's central axial is parallel with getting into the roller.
Through adopting above-mentioned technical scheme, rotate adjusting screw and can drive first switching-over roller and/or second switching-over roller along getting into certain distance of roller axial displacement to can adjust the direction of delivery of substrate, make the substrate can continue the onward transport along original direction of delivery, and then make the printing pattern of reverse side can keep unanimous with the pattern on front.
The present invention in a preferred example may be further configured to: the end part of the first reversing roller and/or the second reversing roller is integrally formed to be provided with a connecting section, the connecting section is provided with an adjusting groove which is parallel to the axial direction of the first reversing roller or the second reversing roller, a fixing bolt which is connected with the mounting block in a threaded manner is arranged in the adjusting groove in a penetrating manner, and the fixing bolt is sleeved with a locking nut which is connected with the locking nut in a threaded manner.
Through adopting above-mentioned technical scheme, rotate the adjusting screw at first switching-over roller or second switching-over roller both ends in the adjustment process, cooperate first, second switching-over roller to change the angle of whole first, second switching-over roller along its respective axial displacement, and then can change the direction of delivery of substrate according to the demand of arrangement space and printing decorative pattern of actual equipment.
The present invention in a preferred example may be further configured to: the support body is provided with the link, the transition roller is along vertical direction sliding connection in link, link threaded connection has the tight bolt of deciding that supports in transition roller outer wall tightly.
Through adopting above-mentioned technical scheme, can adjust the high position of transition roller according to the requirement of the tensioning degree in the substrate transportation process to can adjust the change to the tensioning of substrate in transportation process.
The present invention in a preferred example may be further configured to: step D includes guiding mechanism in the register, the link is radially slided along the level of transition roller and is connected in the support body, guiding mechanism is including rotating the clamping unit who is connected in support body and threaded connection in the adjusting screw of link, along the axial of transition roller and support body sliding connection, the axial sliding connection of deriving the roller along the transition roller is in the support body, clamping unit includes sliding connection in the support body and connects in the carriage of transition roller, along vertical direction sliding connection in the carriage and can support tightly in the pinch-off blades of deriving the roller, connect in the carriage and connect in the die clamping cylinder of pinch-blades, the support body is connected with the promotion cylinder that promotes derivation roller and pinch-blades removal.
Through adopting above-mentioned technical scheme, when the pattern of reverse side printing and the positive printing pattern do not align, utilize gliding link to carry out the pulling backward or reserve out a section distance by the pulling forward to the substrate, cooperate clamping component again and can move whole substrate a section distance forward to make the pattern of positive and negative two sides can be according to the required completion register of reality, promote the quality of printing.
The present invention in a preferred example may be further configured to: and in the step B, drying the patterns on the surface of the base material after printing in the front color printing and the step E, and cooling by air after drying.
Through adopting above-mentioned technical scheme, can dry the pattern on the good substrate surface of color printing, avoid can producing the pattern at the transfer in-process and obscure, promote holistic color printing quality.
In summary, the invention comprises the following technical effects:
the base material can be turned over in the conveying process of the base material, and the base material is still conveyed in the same direction as the original direction after being turned over, so that the other side surface of the base material is conveniently printed with patterns;
the utilization is weathered the subassembly and can borrow first, second switching-over roller and weather the substrate in turn-over in-process in step, promotes the printing effect on substrate surface.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
FIG. 2 is a schematic view of the present embodiment with the substrate removed.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Fig. 4 is a schematic structural diagram of the present embodiment, which is mainly used for embodying the adjustment mechanism.
In the figure, 1, a frame body; 2. entering a roller; 3. a first reversing roller; 4. a transition roll; 5. a second reversing roller; 6. a delivery roller; 7. mounting blocks; 8. adjusting the screw rod; 9. a connecting section; 10. an adjustment groove; 11. fixing the bolt; 12. locking the nut; 13. an air outlet; 14. a blow-drying assembly; 141. a blower; 142. an air inlet pipe; 1421. an air inlet branch pipe; 143. adjusting the valve; 144. an air inlet hose; 15. a flow-disturbing hole; 16. tightening the bolt; 17. an adjusting block; 18. a connecting frame; 19. an adjustment mechanism; 191. adjusting the screw rod; 192. a clamping assembly; 193. a carriage; 194. a clamping lever; 195. a clamping cylinder; 196. and pushing the air cylinder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the color printing process for a packaging bag disclosed by the invention comprises the following steps:
step A: unreel, unreel to the substrate coiled material that will print, the substrate can be selected according to actual product demand, selects for use in this embodiment for transparent film.
And B: and the high-speed gravure printing machine comprises a plurality of groups of gravure printing rollers which are arranged in parallel and used for printing different colors, and after printing is finished each time, the base material is dried through a hot oven to the printed patterns of the base material, and is cooled by air cooling after being dried.
And C: trade the face, carry out the turn-over to the substrate, including turn-over mechanism, refer to fig. 1 and show, turn-over mechanism is connected with one and is the vertically entering roller 2 with substrate direction of delivery including connecting in the support body 1 at high-speed gravure press top on support body 1 rotates, gets into roller 2 and is parallel with the width direction of substrate, and the substrate of having printed the bottom surface pastes tightly in getting into roller 2 and carry forward.
In order to smoothly turn over the substrate firstly, a first reversing roller 3 is connected to a frame body 1, the first reversing roller 3 is inclined, the first reversing roller 3 and an inlet roller 2 are axially 45 degrees, the height of the first reversing roller 3 is higher than that of the inlet roller 2, the lowest point of the first reversing roller 3 is close to the highest point of the inlet roller 2, and one end of the first reversing roller 3 is located above one end of the inlet roller 2.
In order to realize the turnover of the substrate and return to the original conveying direction, referring to fig. 2, a transition roller 4 is rotatably connected to the frame body 1, the axial direction of the transition roller 4 is perpendicular to the axial direction of the inlet roller 2, the transition roller 4 is positioned between one end of the first reversing roller 3, which is far away from the inlet roller 2, and the inlet roller 2, a second reversing roller 5 which is perpendicular to the first reversing roller 3 is arranged above the first reversing roller 3, the axial center of the second reversing roller 5 and the axial center of the first reversing roller 3 are in the same vertical direction, the first reversing roller 3 and the second reversing roller 5 are in an X shape in vertical projection, the second reversing roller 5 and the inlet roller 2 are in a 45 degree angle, in order to enable the substrate to pass through the transition roller 4 from the first reversing roller 3 and then be conveyed to the second reversing roller 5, the diameter of the transition roller 4 is close to the distance between the lowest point of the second reversing roller 5 and the highest point of the first reversing roller 3, so that the original bottom surface of the base material can be turned to the upper surface of the base material after the base material bypasses the transition roller 4 and the inclined second reversing roller 5, and the forward conveying direction of the base material is kept in the same straight line with the original conveying direction.
In order to enable the substrate which has been turned over to be conveyed further forward, a delivery roller 6 which is parallel to the entry roller 2 is rotatably connected to the frame body 1, and the height of the delivery roller 6 is the same as the height of the second reversing roller 5.
Referring to fig. 2 and 3, in order to facilitate adjustment of the first reversing roller 3 and/or the second reversing roller 5, a connection section 9 is integrally formed at an end portion of the first reversing roller 3 and/or the second reversing roller 5, in this embodiment, adjustment grooves 10 parallel to an axial direction of the connection section 9 are formed at the connection section 9 of the second reversing roller 5, a fixing bolt 11 is penetrated in each adjustment groove 10, a mounting block 7 connected to the frame body 1 is connected to a position of the fixing bolt 11 near the bottom in a threaded manner, a locking nut 12 abutting against an upper surface of the connection section 9 is connected to a portion of the fixing bolt 11 extending out of the connection section 9 in a threaded manner, in order to facilitate adjustment of a position of the mounting block 7 on the frame body 1, an adjusting screw 8 parallel to the entry roller 2 is rotatably connected to a position of the frame body 1 at an end portion of the second reversing roller 5, the adjusting screw 8 is penetrated and connected to the mounting block 7 in a threaded manner, when the locking nut 12 abuts against the upper surface of the connecting section 9, the mounting block 7 and the connecting section 9 are relatively fixed, and the adjusting screw rods 8 at the two ends of the second reversing roller 5 rotate in the same direction, so that the whole second reversing roller 5 can move along the axial direction of the entering roller 2, the position of the substrate abutting against the second reversing roller 5 is adjusted, and the substrate can be conveyed forwards along the original conveying direction. When the lock nut 12 is not tightened, the angle between the second reversing roller 5 and the entry roller 2 can be adjusted by rotating the adjusting screws 8 at both ends of the second reversing roller 5 in the reverse direction.
Referring to fig. 3, in order to better dry the printed patterns on the surface of the substrate, the first reversing roller 3 and the second reversing roller 5 are both hollow, a plurality of air outlets 13 are formed in one side wall of the first reversing roller 3, one side wall of the second reversing roller 5, which is attached to the substrate, the air outlets 13 are arrayed along the axial direction of the first reversing roller 3 and the second reversing roller 5, meanwhile, the rows of air outlets 13 are arrayed along the circumferential direction in the half circle of the side wall of the contact part of the first reversing roller 3 and the second reversing roller 5 with the substrate, in order to reduce noise, turbulence holes 15 which are in a horn mouth shape and correspond to the air outlets 13 one by one are formed in the side wall of the first reversing roller 3 and the second reversing roller 5, and as shown in fig. 2, the drying assembly 14 is arranged on the frame body 1, the drying assembly 14 comprises a heat source (not shown in the figure), the heat source can be heated by using an electric heating wire, the heat source is communicated with 141, an air inlet of the blower 141 is communicated with a heat source, an air outlet of the blower 141 is communicated with an air inlet pipe 142, the air inlet pipe 142 comprises two air inlet branch pipes 1421 communicated with the blower 141, each air inlet branch pipe 1421 is communicated with two air inlet hoses 144, the two air inlet hoses 144 are respectively communicated with the end parts of the first reversing roller 3 and the second reversing roller 5, and an adjusting valve 143 is arranged between the air inlet hoses 144 and the air inlet branch pipes 1421 and can adjust the air inlet amount.
In order to adjust the tension of the base material in the conveying process, two ends of the transition roller 4 are rotatably connected with an adjusting block 17, the frame body 1 is connected with a connecting frame 18 in a sliding mode along the horizontal radial direction of the transition roller 4, the adjusting block 17 is connected to the connecting frame 18 in a sliding mode along the vertical direction, and two ends, located on the transition roller 4, of the connecting frame 18 are connected with a fastening bolt 16 capable of abutting the adjusting block 17 tightly to the frame body 1 in a threaded mode.
Step D: and aligning the pattern start point of the printing roller with the start point of the pattern on the front surface of the base material, as shown in fig. 4, the aligning process includes an adjusting mechanism 19, the adjusting mechanism 19 includes an adjusting screw 191 rotatably connected to the frame body 1 and threaded to one of the connecting frames 18, and the connecting frame 18 on the other side is slidably connected to the frame body 1 along the horizontal radial direction of the transition roller 4. A clamping component 192 is arranged above the guide-out roller 6 on the frame body 1, the clamping component 192 comprises a sliding frame 193 which is connected with the frame body 1 in a sliding way along the axial direction of the transition roller 4 and is rotatably connected with the end part of the guide-out roller 6, a clamping rod 194 which can be tightly propped against the outer wall of the guide-out roller 6 is connected on the sliding frame 193 in a sliding way along the vertical direction, a clamping cylinder 195 which is connected with the end part of the clamping rod 194 is connected on the sliding frame 193, pushing cylinders 196 are arranged at the two ends of the frame body 1 which are positioned on the guide-out roller 6, a piston rod of each pushing cylinder 196 is connected with the end part of the guide-out roller 6, a servo cylinder is selected as the pushing cylinder 196, when the pattern starting point of the reverse printing roller and the starting point of the front color printing pattern on the surface of the substrate need to be adjusted, according to the front-back relation and the front-back distance of the pattern starting points of the two patterns, the rotating adjusting screw 191 can pull the whole substrate to move backwards for a certain distance, the substrate is pressed against the guide-out roller 6 by the clamping rod 194, and the whole substrate can move forward for a certain distance by the pushing cylinder 196, and the substrate is pressed against the outer wall of the transition roller 4, so that the registration is completed. Or in the actual operation process, a mark groove is inwards sunken in the outer wall of the end part of the front printing roller in the front color printing in the step B, the connecting line of the mark groove and the starting point of the front printing roller pattern is parallel to the central axial direction of the front printing roller, a color mark sensor is arranged on the outer wall of the end part of the back printing roller in the subsequent back color printing, the connecting line of the color mark sensor and the starting point of the back printing roller pattern is parallel to the central axial direction of the back printing roller, when the front printing roller is in the printing process, the pigment in the mark groove can print colored mark points at the edge of the base material, when the color mark sensor at the end part of the back printing roller rotates to the highest point and just detects the mark points, the pattern alignment is successful, the printing is normally carried out, when the color mark sensor at the end part of the back printing roller rotates to the highest point and does not detect the mark points, the machine is directly stopped to alarm, the adjustment of the register is performed by the worker using the adjustment mechanism 19.
Step E: and B, reverse color printing, namely printing the reverse side of the printed side in the step B.
Step F: and cooling, namely performing air cooling on the printed base material.
Step G: and (6) rolling, namely rolling the cooled base material.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (5)
1. A color printing process of a packaging bag comprises the following steps:
step A: unreeling, namely unreeling the base material;
and B: the front side color printing is used for printing the surface of one side of the base material;
and C: changing the surface, turning over the base material and conveying the base material forwards along the original direction;
step D: aligning, namely aligning the starting point of the pattern of the printing roller with the starting point of the pattern on the front surface of the base material;
step E: b, reverse color printing, namely printing the reverse side of the printed side in the step B;
step F: cooling, namely cooling the printed base material;
step G: winding, namely winding the cooled base material; the surface changing of the step C comprises a surface turning mechanism, wherein the surface turning mechanism comprises a frame body (1), an inlet roller (2) which is vertical to the conveying direction of the base material and is rotatably connected to the frame body (1), a first reversing roller (3) which is arranged at an acute angle with the inlet roller (2) and is connected to the frame body (1), a transition roller (4) which is positioned between one end of the first reversing roller (3) far away from the inlet roller (2) and is connected to the frame body (1), a second reversing roller (5) which is vertical to the center of the first reversing roller (3), is connected to the frame body (1) in different height planes with the first reversing roller (3), and a guide-out roller (6) which is arranged at an acute angle with the second reversing roller (5), is parallel to the inlet roller (2) and is connected to the frame body (1); the frame body (1) is provided with a connecting frame (18), the transition roller (4) is connected to the connecting frame (18) in a sliding mode along the vertical direction, and the connecting frame (18) is in threaded connection with a fastening bolt (16) which abuts against the outer wall of the transition roller (4); step D includes guiding mechanism (19) in the register, link (18) are connected in support body (1) along the radial slip of the level of transition roller (4), guiding mechanism (19) are connected in support body (1) and threaded connection in adjusting screw (191) of link (18) including rotating, along the axial of transition roller (4) with support body (1) be sliding connection's clamping component (192), derive roller (6) along the axial sliding connection of transition roller (4) in support body (1), clamping component (192) include sliding connection in support body (1) and connect in carriage (193) of deriving roller (6), along vertical direction sliding connection in carriage (193) and can support in the clamp bar (194) of deriving roller (6), connect in carriage (193) and connect in the clamp cylinder (195) of clamp bar (194), support body (1) is connected with the push cylinder (196) that promote to derive roller (6) and clamping component (192) and move ).
2. The color printing process for packaging bags according to claim 1, wherein: first switching-over roller (3) and second switching-over roller (5) all communicate and have the subassembly (14) that weathers, and first switching-over roller (3) and second switching-over roller (5) are cavity and have seted up a plurality of exhaust vents (13), exhaust vent (13) are seted up in one side of first switching-over roller (3) and second switching-over roller (5) and substrate laminating, exhaust vent (13) are axial array and along circumference array along first switching-over roller (3) and second switching-over roller (5), weathers subassembly (14) including the heat source, communicate in air-blower (141) of heat source, communicate in air-supply line (142) of air-blower (141) and respectively communicate in first switching-over roller (3) and second switching-over roller (5) inside, be provided with adjusting valve (143) on air-supply line (142).
3. The color printing process for packaging bags according to claim 2, wherein: the both ends of first switching-over roller (3) and/or second switching-over roller (5) all articulate there is installation piece (7), support body (1) rotates and is connected with adjusting screw (8) that are threaded connection with installation piece (7), the central axial of adjusting screw (8) is parallel with entering roller (2).
4. The color printing process for packaging bags according to claim 3, wherein: the equal integrated into one piece of tip of first switching-over roller (3) and/or second switching-over roller (5) has linkage segment (9), axial adjustment tank (10) that are parallel with first switching-over roller (3) or second switching-over roller (5) itself is seted up in linkage segment (9), wear to be equipped with threaded connection in adjusting tank (10) fixing bolt (11) of installation piece (7), fixing bolt (11) cover is established and threaded connection has lock nut (12).
5. The color printing process for packaging bags according to claim 1, wherein: and in the step B, drying the patterns on the surface of the base material after printing in the front color printing and the step E, and cooling by air after drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334664.7A CN111361320B (en) | 2020-04-24 | 2020-04-24 | Color printing process for packaging bag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334664.7A CN111361320B (en) | 2020-04-24 | 2020-04-24 | Color printing process for packaging bag |
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| Publication Number | Publication Date |
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| CN111361320A CN111361320A (en) | 2020-07-03 |
| CN111361320B true CN111361320B (en) | 2021-12-10 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112497900A (en) * | 2020-11-26 | 2021-03-16 | 桐城市鸿江包装有限公司 | Printing device for non-woven fabric handbag |
| CN113815308A (en) * | 2020-12-24 | 2021-12-21 | 江西省友创天成纳米技术有限公司 | Electronic shaft printing machine and operation method thereof |
| CN114013171A (en) * | 2021-10-22 | 2022-02-08 | 江阴市嘉铭印刷包装机械有限公司 | Air suspension type reverse printing device |
| CN114055923A (en) * | 2021-10-29 | 2022-02-18 | 汪帝臣 | Plastic film double-sided printing system |
| CN117401475B (en) * | 2023-12-14 | 2024-04-19 | 东莞市万豪包装有限公司 | Automatic conveyer of wrapping bag color printing |
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| CN202965491U (en) * | 2012-11-22 | 2013-06-05 | 王道德 | Roll-over stand device for plastic film double-face printing |
| CN104553260A (en) * | 2013-10-21 | 2015-04-29 | 北大方正集团有限公司 | Printing machine overturning bar device and printing machine |
| CN206374336U (en) * | 2017-01-02 | 2017-08-04 | 桐乡恩特包装有限公司 | Membrane turnover device and the printing machine for being provided with the membrane turnover device |
| CN109205255A (en) * | 2018-11-09 | 2019-01-15 | 山东银广印务科技有限公司 | A kind of printing turnover device and printing process |
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