CN102602177A - Polyethylene heat shrinkable film gravure printing process - Google Patents
Polyethylene heat shrinkable film gravure printing process Download PDFInfo
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- CN102602177A CN102602177A CN2012100529533A CN201210052953A CN102602177A CN 102602177 A CN102602177 A CN 102602177A CN 2012100529533 A CN2012100529533 A CN 2012100529533A CN 201210052953 A CN201210052953 A CN 201210052953A CN 102602177 A CN102602177 A CN 102602177A
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Abstract
The invention relates to a polyethylene heat shrinkable film gravure printing process which comprises the following steps of: (1) unwinding a polyethylene heat shrinkable film; (2) carrying out unwinding drawing; (3) carrying out inking by a drop roller; (4) scraping ink by a scraper; (5) carrying out gravure printing; (6) drying ink; (7) cooling a printed object; (8) carrying out multiple color class overprinting, wherein the steps (3), (4), (5), (6) and (7) are sequentially repeated; (9) carrying out winding drawing; (10) winding; (11) checking the quality; (12) stripping; (13) sealing and cutting; and (14) carrying out finished product packaging to obtain a finished product, wherein when the step (6) is implemented, the ink printed on the surface of the polyethylene heat shrinkable film is dried by modes of feeding hot blast by an air blower and circulating the hot blast by a drying box and related equipment comprises an air energy heating device, the air blower, an external heating box, a suction fan and the drying box with an effect of an air chipper. The polyethylene heat shrinkable film gravure printing process is used for carrying out gravure printing on the polyethylene heat shrinkable film.
Description
Technical field
The present invention relates to the intaglio printing technical field, particularly relate to a kind of polyethylene heat shrink films gravure printing technique.
Background technology
The intaglio printing present situation of prior art: intaglio printing is the main mode of printing of packages printing, is characterized in really reproducing the original copy effect, and that the color of printing and the binding hierarchy of pattern enrich is clear, mass colour is saturated abundant, bright in colour bright etc.And with respect to a gentle version trans-printing, offset lithographic etc., intaglio printing has also that the equipment input cost is lower, technical matters is ripe, the comprehensive process ability strong, the printing ink low cost and other advantages except having above-mentioned advantage.The medium that is applicable to intaglio printing is very extensive, and wherein, plastic material has PVC, PET, PE, NY, CPP, PP, BOPP etc.
The polyethylene heat shrink films intaglio printing situation of prior art: printed medium polyethylene heat shrink films has the characteristic that the tension of receiving can produce tangible strain, the meeting generation nature that is heated shrinks; In the direct printing process of intaglio plate; The polyethylene heat shrink films needs stretchedly to unreel, traction transmits at a high speed, repeatedly adds manufacturing technology steps such as pressing ink print, heating for multiple times oven dry chromatography and rolling, and printed patterns distortion, smudgy, defective that the finished size distortion is big generally appear in the finished product that prints out; Finished product vertically shrinks and surpasses 8 ‰; The finished product cross-direction shrinkage surpasses 3 ‰, and when print speed printing speed surpassed 120 meters/minute, contraction change was more obvious.Just because of the polyethylene heat shrink films has above-mentioned characteristic; All the time; The polyethylene heat shrink films is a kind of printed medium that yield rate is low in the numerous printed medium of intaglio printing, print speed printing speed is difficult to promote, and therefore, has limited to the market competitiveness of polyethylene heat shrink films in the intaglio printing industry.At present, in the intaglio printing industry, polyethylene heat shrink films intaglio printing speed is 100～120 meters/minute, and intaglio printing speed is difficult to promote, and finished product output also is difficult to promote.Polyethylene heat shrink films printing loss is big, and average product qualified rate is up to 94%.Polyethylene heat shrink films intaglio printing quantity-produced hyperthermia drying temperature is 55～65 degrees centigrade, and energy consumption is 300 degree electricity/ten thousand squares, and polyethylene heat shrink films intaglio printing energy consumption is high.Therefore, people hope that urgently the polyethylene heat shrink films gravure printing technique that a kind of finished product output is high, product qualified rate is high, energy consumption is low comes out.
Summary of the invention
Technical problem to be solved by this invention is: the polyethylene heat shrink films intaglio printing speed that overcomes prior art is difficult to promote, finished product output is difficult to promote, the printing defective that loss is big, product qualified rate is low, energy consumption is high; Satisfy people's hope; A kind of polyethylene heat shrink films gravure printing technique is provided, and this polyethylene heat shrink films gravure printing technique print speed printing speed is fast, and finished product output is high; Product qualified rate is up to 99%; Bake out temperature is 33～45 degrees centigrade, and energy consumption saves 40%, makes the packing cost in polyethylene heat shrink films intaglio printing market reduce by 40%.
The technical solution adopted for the present invention to solve the technical problems is: a kind of polyethylene heat shrink films gravure printing technique comprises the steps:
(1), the polyethylene heat shrink films unreels;
(2), unreel traction;
(3), China ink on the drop roller;
(4), scraper wiping;
(5), intaglio printing;
(6), printing ink oven dry;
(7), seal thing cooling;
(8), the chromatography of polychrome group, comprise repeatedly repeating step (3), (4), (5), (6) and (7) in regular turn;
(9), rolling traction;
(10), rolling;
(11), quality inspection;
(12), itemize;
(13), envelope is cut;
(14), finished product packing, obtain finished product;
In implementing said step (6) and step (8) during repeated step (6); Printing ink to being printed on polyethylene heat shrink films surface send the mode of hot blast, drying baker hot air circulation to dry through air blast; The equipment that relates to comprises air ability heater, air blast, external heating cabinet and the drying baker with pneumatic shovel effect; Air blast connects air ability heater through blast pipe; Drying baker, external heating cabinet and air blast link together in regular turn; Outdoor air can heater carries out producing the once hot blast of heating after the exchange heat through air, and once the hot blast of heating is sent into external heating cabinet post bake to 33～45 degrees centigrade, sent into drying baker, the control of the controlled temperature temperature device in drying baker and the external heating cabinet again through air blast; In drying baker, be provided with district and solvent evaporates back zone in the solvent evaporates proparea that is interconnected, the solvent evaporates from bottom to top.
In technique scheme, during repeated step (6), the equipment that relates to also comprises air exhauster in implementing said step (6) and step (8); Said drying baker comprises casing, in casing, is sequentially provided with waste gas chamber, hot blast chamber, a plurality of drying cavity and many A deflector rolls from right to left, and casing is provided with hot air inlet and suction opeing; Said many A deflector rolls are skewed distribution from bottom to top in casing, said a plurality of drying cavities are skewed distribution from bottom to top and form district and solvent evaporates back zone in described solvent evaporates proparea, the solvent evaporates in casing; On the corresponding oven dry cavity of a plurality of drying cavities, be respectively arranged with the tuyere of spray hot blast; A plurality of drying cavities are communicated with the waste gas chamber through the exhausting tube respectively, and exhausting tube one end that is positioned at the hot blast chamber is assembled together with corresponding oven dry cavity, the other end and hot blast cavity are assembled together; Hot blast gets into the hot blast chamber in the casing by external heating cabinet, hot air inlet, and the hot blast in the hot blast chamber sprays to the seal thing and flows into corresponding drying cavity through each tuyere; Under the effect of air exhauster, exhausting tube, waste gas chamber, suction opeing and the flue gas leading emptying of the hot blast that contains the solvent evaporates composition in a plurality of drying cavities through linking to each other in regular turn.
Further, the tuyere that on the oven dry cavity of solvent evaporates proparea and solvent evaporates back zone correspondence, is provided with respectively is the V-arrangement tuyere, and the gap width of said V-arrangement tuyere is 2 mm～2.5mm, preferred 2 mm or 2.5mm.
Further, the tuyere that in solvent evaporates, is provided with on the oven dry cavity of district's correspondence is a high-efficiency multiple plate tuyere, and the gap width of said high-efficiency multiple plate tuyere is 3.5 mm～4.5mm, preferred 4 mm.
Further; During repeated step (5), the equipment that relates to comprises printing machine in implementing said step (5) and step (8), and said printing machine is provided with many deflector rolls; The diameter of said deflector roll is 100mm～120mm, preferred 100mm, 110mm or 120mm.
Further, the axial external surface at said deflector roll is provided with bidirectional guide groove or unidirectional guiding gutter.
Further, the bake out temperature of drying baker is 33～45 degrees centigrade.
Further, during repeated step (5), its shape of the forme that relates to is olive shape in implementing said step (5) and step (8).
Further, during repeated step (5), its shape of the forme that relates to is dolioform in implementing said step (5) and step (8).
Further, during repeated step (5), its shape of the forme that relates to is cydariform in implementing said step (5) and step (8).
The invention has the beneficial effects as follows: during owing to repeated step (6) in implementing said step (6) and step (8); Printing ink to being printed on polyethylene heat shrink films surface send the mode of hot blast, drying baker hot air circulation to dry through air blast; The equipment that relates to comprises air ability heater, air blast, external heating cabinet, air exhauster and the drying baker with pneumatic shovel effect; Air blast connects air ability heater through blast pipe; Drying baker, external heating cabinet and air blast link together in regular turn, the control of the controlled temperature temperature device in drying baker and the external heating cabinet; In drying baker, be provided with district and solvent evaporates back zone in the solvent evaporates proparea that is interconnected, the solvent evaporates from bottom to top; With the similar air of the 26S Proteasome Structure and Function of air conditioner can heater with outdoor air suction; Can carry out producing the once hot blast of heating after the exchange heat by heater by air; Once the hot blast of heating is sent into external heating cabinet post bake to 33～45 degrees centigrade, is sent into drying baker again through air blast, improve environment temperature in the cold wind inlet chamber that can heater be produced by air; Said drying baker comprises casing, in casing, is sequentially provided with waste gas chamber, hot blast chamber, a plurality of drying cavity and many A deflector rolls from right to left, and casing is provided with hot air inlet and suction opeing; Said many A deflector rolls are skewed distribution from bottom to top in casing, said a plurality of drying cavities are skewed distribution from bottom to top and form district and solvent evaporates back zone in described solvent evaporates proparea, the solvent evaporates in casing; On the corresponding oven dry cavity of a plurality of drying cavities, be respectively arranged with the tuyere of spray hot blast; A plurality of drying cavities are communicated with the waste gas chamber through the exhausting tube respectively, and exhausting tube one end that is positioned at the hot blast chamber is assembled together with corresponding oven dry cavity, the other end and hot blast cavity are assembled together; Hot blast gets into the hot blast chamber in the casing by external heating cabinet, hot air inlet, and the hot blast in the hot blast chamber sprays to the seal thing and flows into corresponding drying cavity through each tuyere; Under the effect of air exhauster, exhausting tube, waste gas chamber, suction opeing and the flue gas leading emptying of the hot blast that contains the solvent evaporates composition in a plurality of drying cavities through linking to each other in regular turn; Because the power of air blast increases, increased the blow rate required of air blast again, made and send into external heating cabinet and drying baker successively through air blast by the hot blast of air ability heater generation; Make drying baker can produce the pneumatic shovel effect, the surperficial printing ink of polyethylene heat shrink films can be done soon to being printed on, the solvent noresidue, and through changing the shape of forme; Prevent polyethylene heat shrink films generation deformation; Reached following beneficial effect: 1, print speed printing speed is fast, and finished product output is high, and its print speed printing speed of the finished product of 8 looks above chromatography improves 60%; Print speed printing speed on average reaches 200 meters/minute, and finished product output increases substantially.2, end product quality is high, and product qualified rate is up to 99%, the color of printing and the binding hierarchy of pattern enrich clear, saturated abundant, bright in colour the becoming clear of mass colour; The pattern of polyethylene heat shrink films surface printing does not have distortion; Ink adhesion is tight, the solvent noresidue, and the distortion of polyethylene heat shrink films is very little.3, obvious energy conservation; Its hyperthermia drying temperature of the drying baker of prior art is 55～65 degrees centigrade; And the present invention is owing to adopted the drying baker with pneumatic shovel effect; The bake out temperature of drying baker is 33～45 degrees centigrade, and the printing ink that just can reach polyethylene heat shrink films surface can be done soon, the purpose of solvent noresidue, and energy consumption saves 40%.4, can improve environment temperature in the cold wind inlet chamber of heater generation by air, the office work condition is good, the indoor environment compliance with environmental protection requirements.5, successfully polyethylene heat shrink films intaglio printing cost is reduced; Obtained more clients' approval: Chef Kang's bottled drinking water, Coca-Cola bottled drink color film packing of carrying out in an all-round way makes the packing cost of polyethylene heat shrink films intaglio printing reduce by 40%.6, the air on the original equipment can be improved by heater (being heating system) as follows: it is long-pending to increase the blast pipe pipeline section; Reduce blast pipe elbow quantity; Thereby reach the internal resistance that reduces the blast pipe pipeline, the purpose that hot blast is passed through smoothly, so that select the air blast of middle pressure, big air quantity for use; Change air blast the air blast of middle pressure, big air quantity into, and make drying baker keep lower temperature (33～45 degrees centigrade), thereby reduced energy consumption widely.7,, improved the efficient of printing ink oven dry widely through transformation to tuyere.8, the deflector roll diameter on the original printing machine of increasing, the deflector roll diameter changes 100mm～120mm into by original 80mm, and makes guide roller axis into semiaxis, thereby reaches following effect: a, minimizing deflector roll static torque; The contact area of b, increasing deflector roll and polyethylene heat shrink films; C, the bending curvature when reducing the polyethylene heat shrink films through deflector roll reduce the internal stress of polyethylene heat shrink films are destroyed.9, be provided with bidirectional guide groove or unidirectional guiding gutter in guide roller surface, if the coefficient of friction that the bidirectional guide groove can reach following effect: a, increase deflector roll and polyethylene heat shrink films is set in guide roller surface; B, bring the discharging of the air-flow that comes when accelerating in the high-speed production process to get into deflector roll into, to increase polyethylene heat shrink films lateral stability by the polyethylene heat shrink films; If unidirectional guiding gutter is set, can make the polyethylene heat shrink films in the high-speed motion process, increase its longitudinal stability in guide roller surface.10, increase printing machine deflector roll quantity, each colour cell increases by two deflector rolls, so that reach following effect: a, strengthen the tight power of touching between polyethylene heat shrink films and the deflector roll, to improve the polyethylene heat shrink films in low-tension, stability when producing at a high speed; B, shorten the distance between deflector roll and the deflector roll, the stability when crossing deflector roll to improve the polyethylene heat shrink films.Through to the transformation and upgrade of above equipment, thus reach polyethylene heat shrink films tension force in the intaglio printing process little, walk that film is stable, printing quality and precision be high.And tension force is little in the intaglio printing process, bake out temperature is low owing to the polyethylene heat shrink films, just can make that the finished product extensibility is little, and yield rate is high.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention being done further detailed explanation, is not to be confined to this to practical range of the present invention.
As shown in Figure 1, the described a kind of polyethylene heat shrink films gravure printing technique of present embodiment comprises the steps:
(1), the polyethylene heat shrink films unreels;
(2), unreel traction;
(3), China ink on the drop roller;
(4), scraper wiping;
(5), intaglio printing;
(6), printing ink oven dry;
(7), seal thing cooling;
(8), the chromatography of polychrome group, comprise repeatedly repeating step (3), (4), (5), (6) and (7) in regular turn;
(9), rolling traction;
(10), rolling;
(11), quality inspection;
(12), itemize;
(13), envelope is cut;
(14), finished product packing, obtain finished product;
In implementing said step (6) and step (8) during repeated step (6); Printing ink to being printed on polyethylene heat shrink films surface send the mode of hot blast, drying baker hot air circulation to dry through air blast; The equipment that relates to comprises air ability heater, air blast, external heating cabinet and the drying baker with pneumatic shovel effect; Air blast connects air ability heater through blast pipe; Drying baker, external heating cabinet and air blast link together in regular turn; Outdoor air can heater carries out producing the once hot blast of heating after the exchange heat through air, and once the hot blast of heating is sent into external heating cabinet post bake to 33～45 degrees centigrade, sent into drying baker, the control of the controlled temperature temperature device in drying baker and the external heating cabinet again through air blast; In drying baker, be provided with district and solvent evaporates back zone in the solvent evaporates proparea that is interconnected, the solvent evaporates from bottom to top; During repeated step (6), the equipment that relates to also comprises air exhauster in implementing said step (6) and step (8); Said drying baker comprises casing, in casing, is sequentially provided with waste gas chamber, hot blast chamber, a plurality of drying cavity and many A deflector rolls from right to left, and casing is provided with hot air inlet and suction opeing; Said many A deflector rolls are skewed distribution from bottom to top in casing, said a plurality of drying cavities are skewed distribution from bottom to top and form district and solvent evaporates back zone in described solvent evaporates proparea, the solvent evaporates in casing; On the corresponding oven dry cavity of a plurality of drying cavities, be respectively arranged with the tuyere of spray hot blast; A plurality of drying cavities are communicated with the waste gas chamber through the exhausting tube respectively, and exhausting tube one end that is positioned at the hot blast chamber is assembled together with corresponding oven dry cavity, the other end and hot blast cavity are assembled together; Hot blast gets into the hot blast chamber in the casing by external heating cabinet, hot air inlet, and the hot blast in the hot blast chamber sprays to the seal thing and flows into corresponding drying cavity through each tuyere; Under the effect of air exhauster, exhausting tube, waste gas chamber, suction opeing and the flue gas leading emptying of the hot blast that contains the solvent evaporates composition in a plurality of drying cavities through linking to each other in regular turn.The tuyere that on the corresponding oven dry cavity in solvent evaporates proparea and solvent evaporates back zone, is provided with respectively is the V-arrangement tuyere, and the gap width of said V-arrangement tuyere is two kinds of 2 mm and 2.5mm.The tuyere that in solvent evaporates, is provided with on the oven dry cavity of district's correspondence is a high-efficiency multiple plate tuyere, and the gap width of said high-efficiency multiple plate tuyere is 4 mm.In implementing said step (5) and step (8) during repeated step (5); The equipment that relates to comprises printing machine; Said printing machine is provided with many deflector rolls, and the diameter of said deflector roll is 100mm～120mm, preferred 100mm, 110mm or 120mm.Axial external surface at said deflector roll is provided with bidirectional guide groove or unidirectional guiding gutter.The bake out temperature of drying baker is 33～45 degrees centigrade.In implementing said step (5) and step (8) during repeated step (5); The forme that relates to shape vertically can be any one in following three kinds of shapes; The one, its shape is olive shape, and the 2nd, its shape is dolioform, and the 3rd, its shape is cydariform.
The improvement of air blast in the present embodiment and air ability heater (being heating system): the air blast blast that 1, is adopted on the former printing machine is big, air quantity is little; In the printing ink drying course, make drying baker will keep higher temperature (55～65 degrees centigrade), can reach the purpose of printing ink oven dry; Because the temperature in the drying baker is high; This just causes the temperature distortion of polyethylene heat shrink films to stretch easily, and energy consumption is high in polyethylene heat shrink films intaglio printing process, efficient is low.Air blast is changed into the air blast of middle pressure, big air quantity at present, and make drying baker keep lower temperature (33～45 degrees centigrade), thereby reduced energy consumption widely.2, the blast pipe pipeline section on the original equipment is little, and elbow is many, makes air blast need adopt big pressure blower, thereby causes air quantity too little.Air on the original equipment can be improved by heater (being heating system) at present; It is long-pending to increase the blast pipe pipeline section; Reduce blast pipe elbow quantity, thereby reach the internal resistance that reduces the blast pipe pipeline, the purpose that hot blast is passed through smoothly, so that select the air blast of middle pressure, big air quantity for use.3, improving air can heater (being heating system), with former heating system change into the subregion loop control, can heater with the air that strengthens efficiency of energy utilization.
The improvement of the drying baker in the present embodiment: 1, the drying baker on the original equipment does not carry out the subregion processing; Solvent evaporates when beginning to get into drying baker because of the polyethylene heat shrink films is bigger, and the back is volatilized less, does not handle if drying baker does not carry out subregion; Just can not reach purpose of energy saving; Former drying baker is carried out the subregion reforming processing, the printing ink baking zone in the drying baker is divided into district and solvent evaporates back zone in solvent evaporates proparea, the solvent evaporates, the hot blast that district and solvent evaporates back zone in solvent evaporates proparea, the solvent evaporates eject is drained at present; The temperature difference of its temperature of the hot blast that ejects and outdoor air is little, thereby reaches 40% the purpose of cutting down the consumption of energy.2, the tuyere that is arranged in the former drying baker all be the V-type tuyere, and the gap width of each tuyere be provided with unreasonable, inhomogeneous, thereby cause wind speed greatly and the situation that air quantity is little, drying efficiency is low, and cause defective such as ink pellet surface skinning easily.Existing former drying baker is carried out upgrading, the tuyere slit in the solvent evaporates proparea of drying baker is changed little,, reduce laterally moving of film to increase blast; The tuyere that is arranged on the solvent evaporates proparea is the V-arrangement tuyere, and the gap width of said V-arrangement tuyere is 2 mm～2.5mm, two kinds of preferred 2 mm and 2.5mm.In the solvent evaporates of drying baker, distinguish, the slit of tuyere is changed greatly, air quantity strengthens, and blast reduces, and increases the surperficial air mirror coating thickness of printing ink drying course, has improved the efficient of printing ink oven dry; Being arranged on the tuyere of distinguishing in the solvent evaporates is high-efficiency multiple plate tuyere, and the gap width of said high-efficiency multiple plate tuyere is 3.5 mm～4.5mm, preferred 4 mm.Solvent evaporates back zone at drying baker changes former tuyere slit little; To increase blast; Reduce laterally moving of film, increase the stability of film in drying baker, the tuyere that is arranged on the solvent evaporates back zone is the V-arrangement tuyere; The gap width of said V-arrangement tuyere is 2 mm～2.5mm, two kinds of preferred 2 mm and 2.5mm.Through tuyere is carried out above transformation, improved the efficient of printing ink oven dry widely.3, former drying baker is incubated processing, reduces because the energy consume that the drying baker surface radiating causes.
The improvement of polyethylene heat shrink films in the intaglio printing process in the present embodiment: 1, the deflector roll diameter on the original printing machine of increasing; The deflector roll diameter changes 100mm～120mm into by original 80mm; And make guide roller axis into semiaxis, thereby reach following effect: a, reduce the deflector roll static torque; The contact area of b, increasing deflector roll and polyethylene heat shrink films; C, the bending curvature when reducing the polyethylene heat shrink films through deflector roll reduce the internal stress of polyethylene heat shrink films are destroyed.2, be provided with bidirectional guide groove or unidirectional guiding gutter in guide roller surface, if the coefficient of friction that the bidirectional guide groove can reach following effect: a, increase deflector roll and polyethylene heat shrink films is set in guide roller surface; B, bring the discharging of the air-flow that comes when accelerating in the high-speed production process to get into deflector roll into, to increase polyethylene heat shrink films lateral stability by the polyethylene heat shrink films; If unidirectional guiding gutter is set, can make the polyethylene heat shrink films in the high-speed motion process, increase its longitudinal stability in guide roller surface.3, increase printing machine deflector roll quantity, each colour cell increases by two deflector rolls, so that reach following effect: a, strengthen the tight power of touching between polyethylene heat shrink films and the deflector roll, to improve the polyethylene heat shrink films in low-tension, stability when producing at a high speed; B, shorten the distance between deflector roll and the deflector roll, the stability when crossing deflector roll to improve the polyethylene heat shrink films.Through to the transformation and upgrade of above equipment, thus reach polyethylene heat shrink films tension force in the intaglio printing process little, walk that film is stable, printing quality and precision be high.And tension force is little in the intaglio printing process, bake out temperature is low owing to the polyethylene heat shrink films, just can make that the finished product extensibility is little, and yield rate is high.
The above only is a preferred embodiment of the present invention, so all equivalences of doing according to described method of patent claim of the present invention and principle change, all is included within the protection domain of patent application of the present invention.
Claims (10)
1. a polyethylene heat shrink films gravure printing technique comprises the steps:
(1), the polyethylene heat shrink films unreels;
(2), unreel traction;
(3), China ink on the drop roller;
(4), scraper wiping;
(5), intaglio printing;
(6), printing ink oven dry;
(7), seal thing cooling;
(8), the chromatography of polychrome group, comprise repeatedly repeating step (3), (4), (5), (6) and (7) in regular turn;
(9), rolling traction;
(10), rolling;
(11), quality inspection;
(12), itemize;
(13), envelope is cut;
(14), finished product packing, obtain finished product;
It is characterized in that: when implementing said step (6); Printing ink to being printed on polyethylene heat shrink films surface send the mode of hot blast, drying baker hot air circulation to dry through air blast; The equipment that relates to comprises air ability heater, air blast, external heating cabinet and the drying baker with pneumatic shovel effect; Air blast connects air ability heater through blast pipe; Drying baker, external heating cabinet and air blast link together in regular turn; Outdoor air can heater carries out producing the once hot blast of heating after the exchange heat through air, and once the hot blast of heating is sent into external heating cabinet post bake to 33～45 degrees centigrade, sent into drying baker, the control of the controlled temperature temperature device in drying baker and the external heating cabinet again through air blast; In drying baker, be provided with district and solvent evaporates back zone in the solvent evaporates proparea that is interconnected, the solvent evaporates from bottom to top.
2. a kind of polyethylene heat shrink films gravure printing technique according to claim 1 is characterized in that: when implementing said step (6), the equipment that relates to also comprises air exhauster; Said drying baker comprises casing, in casing, is sequentially provided with waste gas chamber, hot blast chamber, a plurality of drying cavity and many A deflector rolls from right to left, and casing is provided with hot air inlet and suction opeing; Said many A deflector rolls are skewed distribution from bottom to top in casing, said a plurality of drying cavities are skewed distribution from bottom to top and form district and solvent evaporates back zone in described solvent evaporates proparea, the solvent evaporates in casing; On the corresponding oven dry cavity of a plurality of drying cavities, be respectively arranged with the tuyere of spray hot blast; A plurality of drying cavities are communicated with the waste gas chamber through the exhausting tube respectively, and exhausting tube one end that is positioned at the hot blast chamber is assembled together with corresponding oven dry cavity, the other end and hot blast cavity are assembled together; Hot blast gets into the hot blast chamber in the casing by external heating cabinet, hot air inlet, and the hot blast in the hot blast chamber sprays to the seal thing and flows into corresponding drying cavity through each tuyere; Under the effect of air exhauster, exhausting tube, waste gas chamber, suction opeing and the flue gas leading emptying of the hot blast that contains the solvent evaporates composition in a plurality of drying cavities through linking to each other in regular turn.
3. a kind of polyethylene heat shrink films gravure printing technique according to claim 2; It is characterized in that: the tuyere that on the oven dry cavity of solvent evaporates proparea and solvent evaporates back zone correspondence, is provided with respectively is the V-arrangement tuyere, and the gap width of said V-arrangement tuyere is 2 mm～2.5mm.
4. a kind of polyethylene heat shrink films gravure printing technique according to claim 2; It is characterized in that: the tuyere that in solvent evaporates, is provided with on the oven dry cavity of district's correspondence is a high-efficiency multiple plate tuyere, and the gap width of said high-efficiency multiple plate tuyere is 3.5 mm～4.5mm.
5. a kind of polyethylene heat shrink films gravure printing technique according to claim 1 and 2; It is characterized in that: when implementing said step (5); The equipment that relates to comprises printing machine, and said printing machine is provided with many deflector rolls, and the diameter of said deflector roll is 100mm～120mm.
6. a kind of polyethylene heat shrink films gravure printing technique according to claim 5 is characterized in that: the axial external surface at said deflector roll is provided with bidirectional guide groove or unidirectional guiding gutter.
7. a kind of polyethylene heat shrink films gravure printing technique according to claim 1, it is characterized in that: the bake out temperature of drying baker is 33～45 degrees centigrade.
8. a kind of polyethylene heat shrink films gravure printing technique according to claim 1 is characterized in that: when implementing said step (5), its shape of the forme that relates to is olive shape.
9. a kind of polyethylene heat shrink films gravure printing technique according to claim 1 is characterized in that: when implementing said step (5), its shape of the forme that relates to is dolioform.
10. a kind of polyethylene heat shrink films gravure printing technique according to claim 1 is characterized in that: when implementing said step (5), its shape of the forme that relates to is cydariform.
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| CN103273751A (en) * | 2013-05-08 | 2013-09-04 | 温太平 | Paper printing laminating method |
| CN103818130A (en) * | 2014-02-13 | 2014-05-28 | 上海烟草包装印刷有限公司 | Method and device for making matte of paper packaging box |
| CN104260547A (en) * | 2014-09-17 | 2015-01-07 | 林允杜 | Stamping machine |
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| CN107244136A (en) * | 2016-06-30 | 2017-10-13 | 广东腾华越杭卫材科技有限公司 | A kind of printing process of multistation intaglio press and its structure |
| CN107487095A (en) * | 2017-08-01 | 2017-12-19 | 重庆鼎盛印务股份有限公司 | A kind of color printing technique |
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| CN111231535A (en) * | 2020-01-15 | 2020-06-05 | 上海聿琪包装材料有限公司 | Case printing process adopting water-based gloss oil |
| CN111251742A (en) * | 2020-01-15 | 2020-06-09 | 上海聿琪包装材料有限公司 | Case printing process adopting water-based environment-friendly ink |
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| CN103273751B (en) * | 2013-05-08 | 2016-08-10 | 温太平 | A kind of paper printing film covering method |
| CN103273751A (en) * | 2013-05-08 | 2013-09-04 | 温太平 | Paper printing laminating method |
| CN103818130B (en) * | 2014-02-13 | 2018-07-27 | 上海烟草包装印刷有限公司 | A kind of production method and its device of paper package box matte |
| CN103818130A (en) * | 2014-02-13 | 2014-05-28 | 上海烟草包装印刷有限公司 | Method and device for making matte of paper packaging box |
| CN104260547A (en) * | 2014-09-17 | 2015-01-07 | 林允杜 | Stamping machine |
| CN104626739A (en) * | 2015-03-15 | 2015-05-20 | 艾金富 | Gilding press |
| CN105730003A (en) * | 2016-04-14 | 2016-07-06 | 上海烟草集团有限责任公司 | Gravure printing technology of paper packaging box and printing equipment |
| CN105730003B (en) * | 2016-04-14 | 2018-08-10 | 上海烟草集团有限责任公司 | Paper package box gravure printing technique and printing equipment |
| CN107244136A (en) * | 2016-06-30 | 2017-10-13 | 广东腾华越杭卫材科技有限公司 | A kind of printing process of multistation intaglio press and its structure |
| CN107627715A (en) * | 2016-07-19 | 2018-01-26 | 昆山御龙包装器材有限公司 | A kind of water-based ink printing film technique and multicolor intaglio press |
| CN107487095A (en) * | 2017-08-01 | 2017-12-19 | 重庆鼎盛印务股份有限公司 | A kind of color printing technique |
| CN110116563A (en) * | 2018-11-28 | 2019-08-13 | 河南银金达彩印股份有限公司 | A kind of production technology of novel environment friendly packaging film |
| CN111231535A (en) * | 2020-01-15 | 2020-06-05 | 上海聿琪包装材料有限公司 | Case printing process adopting water-based gloss oil |
| CN111251742A (en) * | 2020-01-15 | 2020-06-09 | 上海聿琪包装材料有限公司 | Case printing process adopting water-based environment-friendly ink |
| CN111231535B (en) * | 2020-01-15 | 2021-11-05 | 上海聿琪包装材料有限公司 | Case printing process adopting water-based gloss oil |
| CN112706532A (en) * | 2020-12-29 | 2021-04-27 | 东莞市正新包装制品有限公司 | Water-based ink printing method of shrink film and shrink film |
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