CN101983866A - Film compounding process - Google Patents
Film compounding process Download PDFInfo
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- CN101983866A CN101983866A CN2010102577975A CN201010257797A CN101983866A CN 101983866 A CN101983866 A CN 101983866A CN 2010102577975 A CN2010102577975 A CN 2010102577975A CN 201010257797 A CN201010257797 A CN 201010257797A CN 101983866 A CN101983866 A CN 101983866A
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Abstract
The invention relates to a film compounding process which comprises the following steps: step 1, evenly coating a layer of UV curable adhesive on a plastic film; step 2, pressing the plastic film coated with the UV curable adhesive on the upper surface of a material; and step 3, irradiating the plastic film by ultraviolet light to cure the UV curable adhesive between the material and the plastic film and compound the plastic film with the material integrally. In the film compounding process of the invention, because the UV curing method is adopted for compounding, and the UV curable adhesive is adopted as a binder, the UV curable adhesive can be coated very thin, and the cost of compounding the film is greatly reduced; the flatness and brightness after film compounding are good; the adhesive needs not to be dried or thermally pressed for compounding, and high temperature can not be generated, thus saving energy and providing comfort for operation workers; because thermal pressing is not needed, the requirement for the pressing force between two rollers is obviously reduced, the abrasion between the two rollers is greatly reduced, and the rollers are durable; the process is not limited by the time for drying the adhesive, and the film compounding speed is greatly increased; and the process has strong adaptability to the temperature difference of each place.
Description
Technical field
The present invention relates to a kind of production technology that is used for press, relate in particular to a kind of multiple membrane process.
Background technology
In order to make printed matter surfaces such as picture, product description, packing box, drawing and label more attractive in appearance, and waterproof and folding wrinkle, generally at surface recombination one deck plastic protective film for plastics of printed matter, the technology of compound this plastic protective film for plastics is called compound film technology.Existing coating machine generally comprises for film device, glue spreader, the heating, drying device, the hot pressing roller, pressure roll, sheet feeding-device and a plurality of deflector roll, the process of its multiple membrane process generally is that plastic foil is coated with the certain thickness glue of last layer by glue spreader, make the glue on the plastic sheeting present leather hard by the heating, drying device then, the printed matter and the plastic sheeting hot pressing that will be printed on literal or pattern through hot pressing roller and pressure roll is combined into one again, and pinch roll and infeed set-up are set at the rear of hot pressing roller and pressure roll, printed matter behind the multiple film is cut into slices on request, or the rolling rotating shaft is set, the printed matter behind the multiple film is collected with web-like.
Above-mentioned this multiple membrane process can satisfy the requirement of people to attractive in appearance, the waterproof and the folding wrinkle of printed matter surface, but still there is following defective: one, adopt water-soluble glue or oil-soluble glue as adhesive, because the viscosity of glue is higher, determine that its glue-spread is bigger, every square metre needs about gluing 12 grams, by 18000 yuan of/ton calculating of price general charged of present glue, every square metre glue cost needs 0.216 yuan.Two, because the transparency of glue is poor, and can't be coated with very evenly, thereby it is higher to the quality requirement of plastic sheeting, if the flatness of plastic sheeting is relatively poor, between film and printed matter, can produce the mist bubble, cause brightness relatively poor, and printed matter because of making plastic sheeting and printed matter easily, break away from moisture absorption.Three, need oven dry and hot pressing compound, the power consumption of drying unit and hot pressing roller is big on the one hand; On the other hand, and produce higher temperature, allow the workman be difficult to bear, increased the difficulty in the work; Also have, the pressure that the compound needs of hot pressing are bigger, it is 8-12 atmospheric pressure that general minimum pressure operation requires, and hot pressing roller and pressure roll are generally made by rubber, easy like this hot pressing roller and the pressure roll of causing damages.Four, multiple film speed is slow, per hour again film the chances are about 1900 meters.Five, since glue in the lower place of temperature, glue more easily solidifies, so need to adopt the lower glue of setting temperature; And in the higher place of temperature, glue difficulty solidifies, and then need adopt the higher glue of setting temperature; Therefore also need select different glue in the place of different temperatures, production is brought inconvenience.
Summary of the invention
Technical problem to be solved by this invention provides a kind of multiple membrane process, and this multiple membrane process can significantly reduce multiple film cost; Low to the plastic sheeting quality requirement, flatness behind the multiple film, brightness are good; It is compound to need not hot pressing, saves the energy, and it is comfortable that the workman is operated, and roller is durable in use; Multiple film speed is fast; Temperature difference adaptability to the each place is strong.The technical scheme that adopts is as follows:
A kind of multiple membrane process is characterized in that comprising the steps:
Step 1, plastic sheeting evenly is coated with the last layer optic-solidified adhesive;
Step 2, the plastic sheeting that will scribble optic-solidified adhesive press to the material upper surface;
Step 3, employing ultraviolet light irradiation plastic sheeting solidify the optic-solidified adhesive that is between material and the plastic sheeting, and plastic sheeting and material are combined into one.
For implementing above-mentioned multiple membrane process, the coating machine that is adopted comprises for film device, glue spreading apparatus, press fit device, material feedway, deflector roll, ultraviolet light polymerization device and finished product collection device, be provided with in regular turn for film device, glue spreading apparatus, press fit device and finished product collection device direction of transfer along plastic sheeting, the material feedway is located at the below that supplies film device and the place ahead that is in press fit device, and the ultraviolet light polymerization device is located between press fit device and the finished product collection device and is in the top of plastic sheeting.
All can adopt relevant device commonly used in the existing coating machine for film device, glue spreading apparatus, press fit device, material feedway and deflector roll.
Usually adopt one for the film rotating shaft for film device, the plastic sheeting rolling is placed on in the film rotating shaft, rotates for the film rotating shaft plastic sheeting is sent.
Deflector roll is used for supporting role in plastic sheeting or material transport process.
Glue spreading apparatus generally includes glue groove, glue spreader and spreading roller, and glue spreader is parallel to each other with spreading roller and contacts, and glue spreader partly is in the glue groove, and optic-solidified adhesive is contained in the glue groove.Rotate glue spreader sticking optic-solidified adhesive from the glue groove, spreading roller and glue spreader mutual friction mutually scrape off the part optic-solidified adhesive on the glue spreader, make the lip-deep optic-solidified adhesive of glue spreader more even, glue spreader is rotated further, will be through its surperficial plastic sheeting coating last layer optic-solidified adhesive.
The material feedway generally includes the paper delivery platform, and the outlet of paper delivery platform is corresponding with the position of press fit device, and material is joined at the porch and the plastic sheeting of press fit device.In order to adapt to the supply of flexibility paper or film, the material feedway generally adopts the feed rotating shaft, and soft paper or plastic sheeting become web-like to be placed in the feed rotating shaft, and joins in press fit device porch and plastic sheeting.
Press fit device generally includes pressing rubber rollers and the pressing bachelor who rolls in opposite directions, and is gapped between pressing rubber rollers and the pressing bachelor, and the size of adjustable clearance is to adapt to the paper of different-thickness.Plastic sheeting and material pass from the gap between pressing rubber rollers and the pressing bachelor, and pressing rubber rollers and pressing bachelor roll in opposite directions, the plastic sheeting that scribbles optic-solidified adhesive are pressed to the upper surface of material.
The ultraviolet light polymerization device sends ultraviolet, shines above the plastic sheeting, and the optic-solidified adhesive that is between plastic sheeting and the material is solidified, with plastic sheeting and material compound be one.
Finished product collection device can comprise a rolling rotating shaft, and the rolling rotating shaft is rotated, and collects finished product with roll-good form; Also the rolling rotating shaft can be set, but two pinch rolls and infeed set-up are set, the finished product behind the multiple film is cut off, collect finished product with individual sheet form.
The rotating shaft of preferred above-mentioned confession film, glue spreader, spreading roller, pressing rubber rollers or pressing bachelor, paper delivery platform (or feed rotating shaft) and rolling rotating shaft (or pinch roll) are in transmission connection with driving mechanism by sprocket wheel (or belt pulley) and chain (or belt) respectively.
Curing mode of the present invention is to adopt the photocuring mode with in the past hot pressing difference, by adopting ultraviolet optic-solidified adhesive is solidified, and is one thereby make plastic sheeting and material compound.Optic-solidified adhesive can be coated with very thinly, even.Optic-solidified adhesive generally is used for surface-coated, as ultraviolet (UV) gloss oil, ultraviolet (UV) paint, ultraviolet (UV) blending oil, ultraviolet (UV) binding glue, ultraviolet (UV) winding displacement glue etc.Because optic-solidified adhesive nearly all is made of esters of acrylic acid prepolymer (claiming oligomer again), activated monomer and ultraviolet initator, does not have ultraviolet irradiation that light trigger is had an effect and then can't make the further polymerization of prepolymer form big molecule (solid) and solidify.Thereby optic-solidified adhesive generally all only is used for the binding (fixing) of surface-coated (UV gloss oil, UV printing ink, UV coating etc.) or components and parts.Optic-solidified adhesive does not contain the transparent glue of volatilizable thing usually, does not almost have volatile matter (VOC) to produce in solidification process, almost absolutely changes solid into by colloid, so optic-solidified adhesive has already possessed the most basic environmental protection condition.The present invention breakthroughly with optic-solidified adhesive as adhesive, plastic sheeting is compound to the upper surface of material with ultraviolet, (below 42 °) carry out photocuring at normal temperatures, the necessary purity of its ultraviolet that adopts is higher, contain other impurity light less as far as possible, especially need infrared ray is controlled in the minimum scope.
In order to obtain to carry out at normal temperatures the condition of work of photocuring, and reach purpose simple in structure, that save cost,, in the described step 3, the high temperature that ultraviolet source produced is in time left by water-cooling pattern as preferred version of the present invention.Generally speaking, powerful ultraviolet source, its caloric value is very big, and too high temperature also can make plastic sheeting fusing, wrinkle or distortion, causes plastic sheeting to be compound to the surface of material.The preferred way of the present invention is: at water-cooling cover of outer setting of ultraviolet source, water-cooling cover is provided with water inlet and delivery port, and the water-cooling cover below is provided with the transmission mouth that penetrates for light, and the place is provided with infrared filter at the transmission mouth.Feed cold water from the water inlet, cold water is flowed through behind the water-cooling cover, discharges from delivery port, and the heat that ultraviolet source produced is dissipated.
In order to obtain satisfactory ultraviolet, and reach purpose simple in structure, that save cost,, in the described step 3, also adopt infrared filter to filter out infrared ray as preferred version of the present invention.Generally speaking, powerful ultraviolet source is being mingled with a large amount of infrared rays when sending ultraviolet, infrared ray shines directly into the plastic sheeting surface, produce a large amount of heats, make film film melts, wrinkle or distortion, cause plastic sheeting to be compound to the surface of material.The preferred way of the present invention is: at water-cooling cover of outer setting of ultraviolet source, water-cooling cover is provided with water inlet and delivery port, the water-cooling cover below is provided with the transmission mouth that penetrates for light, the place is provided with infrared filter at the transmission mouth, infrared filter filters out infrared ray, obtains the higher ultraviolet of purity.
In order to reach better film effect again, as preferred version of the present invention, in the described step 3, also plastic sheeting and material are applied an active force, make plastic sheeting be close to the surface of material.In step 2, just plastic sheeting is pressed to the upper surface of material, the optic-solidified adhesive of this moment does not solidify, plastic sheeting and material are easy to break away from, for reaching good composite effect, need apply active force to material and plastic sheeting, both are close together.Preferred way of the present invention: below ultraviolet light irradiation plastic sheeting place, be provided with one and support smooth roll, with material and plastic sheeting to upper support, at support smooth roll rear felt wrapped roll once is set again, following felt wrapped roll is in the plastic sheeting top, press fit device and following felt wrapped roll produce downward active force to material and plastic sheeting like this, and support smooth roll material and plastic sheeting are produced active force upwards, thereby make plastic sheeting cling to the upper surface of material.Above-mentioned support smooth roll also can adopt a support member with arc surface to replace, and under the cooperation of press fit device and following felt wrapped roll, reaches the effect that material and plastic sheeting is applied active force equally.
In order to reach thinner, the more uniform purpose of gluing,, adopt a pair of glue spreader and spreading roller that plastic sheeting is carried out gluing in the described step 1 with rotary speed difference as the further preferred version of the present invention.Glue spreader rotates, sticking optic-solidified adhesive from the glue groove, spreading roller and glue spreader mutual friction mutually, part optic-solidified adhesive on the glue spreader is scraped off, make the lip-deep optic-solidified adhesive of glue spreader more even, glue spreader is rotated further, will be through its surperficial plastic sheeting coating last layer optic-solidified adhesive.The velocity of rotation of glue spreader and spreading roller is set to have certain speed difference, makes better friction between glue spreader and the spreading roller, thereby makes gluing thinner, more even.The set-up mode of glue spreader and spreading roller can be: the equal active rotation of glue spreader and spreading roller, and rotation direction is identical; Preferred glue spreader and the equal active rotation of spreading roller, direction of rotation, and have certain speed difference.
In order to reach the purpose of protection pressing roller, as the further preferred version of the present invention, in the described step 2, the pressure force that plastic sheeting is covered on the material is a 0.5-2 atmospheric pressure.Owing to adopt the photocuring mode, when plastic sheeting is pressed to the upper surface of material, need not to resemble and require 8-12 atmospheric pressure the hot pressing mode, and the upper surface that only plastic sheeting need be covered material is just passable, pressure force is defined as 0.5-2 atmospheric pressure, makes the active force between the two pressing rollers very little, reduced the friction between two pressing rollers greatly, it is impaired that the pressing roller is not easy, durable in use.
In order to reach better the purpose of film effect again,, in the described step 3, also adopt the mode of water-cooled that the heat that produces in the photocuring process is left as the further preferred version of the present invention.Also be mingled with a spot of infrared ray in the ultraviolet through the infrared filter filtration, shine on the plastic sheeting, can produce a spot of heat, if heat does not in time dissipate, then can accumulate in and support on the smooth roll, make the support smooth roll more and more hotter, temperature uprises then can make plastic sheeting fusing, wrinkle or distortion, the multiple film effect of influence.In the present invention, support smooth roll and be set to water cooled rolls, not only simplify the structure but also solved heat dissipation problem, reach better effect.
In order to reach better film effect again, as the further preferred version of the present invention, the optic-solidified adhesive that adopts in the described step 1 is a plastics ultraviolet gloss oil.Plastics ultraviolet gloss oil (plastics UV gloss oil) more is applicable to the bonding of plastics, can make plastic sheeting well be compound to the upper surface of material during curing.
Multiple membrane process of the present invention, because adopting the photocuring mode carries out compound, the corresponding optic-solidified adhesive that adopts is as adhesive, and because optic-solidified adhesive can be coated with extremely thinly, about 3 grams of every square metre glue-spread, about 25000 yuan per ton of optic-solidified adhesive, every square metre glue cost is about 0.075 yuan like this, need 0.216 yuan compared with the glue cost that has the hot pressing mode now and significantly reduce, significantly reduced multiple film cost; Because optic-solidified adhesive transparent good can be coated with extremely thinly, so to the light transmission of plastic sheeting, the flatness requirement need not be so high, answer flatness behind the film, brightness is good; Because it is compound to adopt the photocuring mode to carry out, and need not glue is dried, it is compound to need not hot pressing, can not produce high temperature, saves the energy, and it is comfortable that the workman is operated; Owing to need not hot pressing, in the press fit device part, the pressure force between two rollers requires obviously to reduce, and generally only needs 0.5-2 atmospheric pressure, reduces the wearing and tearing between two rollers greatly, makes roller durable in use; Because ultraviolet illumination is mapped on the plastic sheeting, optic-solidified adhesive is in time solidified, can not be subjected to drying the time restriction of glue in the past, multiple film speed improves greatly, per hour can reach about 4300 meters; Owing to adopt the photocuring mode, adopt optic-solidified adhesive as adhesive, optic-solidified adhesive only just can solidify under the irradiation of ultraviolet, has overcome that common the glue solidifies to the requirement of temperature, and is strong to the temperature difference adaptability of each place.In addition, owing to adopt the photocuring mode, gluing is thinner, and is provided with the feeding roller that is used to carry the rolling material, makes it possible to multiple film on the thin paper of rolling or plastic sheeting; By plastic sheeting and material are applied active force, make optic-solidified adhesive plastic sheeting and material when solidifying closely stick together multiple film better effects if.
Description of drawings
Accompanying drawing is the structural representation of the preferred embodiment for the present invention
The specific embodiment
Be described further below in conjunction with accompanying drawing and preferred implementation of the present invention.
As shown in drawings, for implementing multiple membrane process of the present invention, the coating machine that is adopted comprises for film device, glue spreading apparatus, press fit device, the material feedway, deflector roll 1, support smooth roll 2, following felt wrapped roll 3, ultraviolet light polymerization device and finished product collection device, for film device, glue spreading apparatus, press fit device and finished product collection device are provided with in regular turn along the direction of transfer of plastic sheeting 4, the material feedway is located at the below that supplies film device and the place ahead that is in press fit device, support smooth roll 2 and following felt wrapped roll 3 and be located in regular turn between press fit device and the finished product collection device, the ultraviolet light polymerization device is located at the top of supporting smooth roll 3 tops and being in plastic sheeting 4.
Comprise for film rotating shaft 5 that for film device plastic sheeting 4 rolling are placed on in the film rotating shaft 5, plastic sheeting 4 is sent for film rotating shaft 5 rotations.
Glue spreading apparatus comprises glue groove 6, glue spreader 7 and spreading roller 8, the setting of rolling in opposite directions of glue spreader 7 and spreading roller 8, and be parallel to each other, be in contact with one another, glue spreader 7 parts are in the glue groove 6.
Press fit device comprises pressing rubber rollers 9 and the pressing bachelor 10 who rolls in opposite directions, gapped between pressing rubber rollers 9 and the pressing bachelor 10, pressing rubber rollers 9 is connected with the piston rod of lift cylinder 11, regulates the size in gap to adapt to the paper of different-thickness by lift cylinder 11.
The material feedway generally includes paper delivery platform 12, and the outlet of paper delivery platform 12 is corresponding with the position of press fit device.In order to adapt to the supply of flexibility paper or film, the material feedway also comprises feed rotating shaft 13, and paper or plastic sheeting become web-like to be placed in the feed rotating shaft 13.
The ultraviolet light polymerization device comprises ultraviolet light source 14, water-cooling cover 15 and infrared filter 16; Water-cooling cover 14 is provided with water inlet 17 and delivery port 18, and water-cooling cover 14 belows are provided with the transmission mouth 19 that penetrates for light; Infrared filter 16 is located at transmission mouth 19 places.
Finished product collection device can comprise a rolling rotating shaft 20, and rolling rotating shaft 20 is rotated, and collects finished product with roll-good form.
Preferred above-mentionedly be in transmission connection by belt pulley and belt and driving mechanism respectively for film rotating shaft 5, glue spreader 7, spreading roller 8, pressing bachelor 10, paper delivery platform 12, feed rotating shaft 13 and rolling rotating shaft 14.
Below in conjunction with above-mentioned coating machine, the preferred implementation of the present invention being answered membrane process is described in further detail:
Step 1, plastic sheeting 4 is placed on in the film rotating shaft 5, and pass deflector roll 1, glue spreader 7, pressing rubber rollers 9 and pressing bachelor 10 successively, support smooth roll 2 and ultraviolet light polymerization device, felt wrapped roll 3, finished product collection device down; Glue spreader 7 rotates, sticking plastics UV gloss oil from glue groove 6, spreading roller 8 and glue spreader 7 mutual friction mutually, partly plastic UV gloss oil on the glue spreader 7 is scraped off, make glue spreader 7 lip-deep plastics UV gloss oil more even, glue spreader 7 is rotated further, will be through its surperficial plastic sheeting 4 coating last layer plastics UV gloss oil.
Step 2, from paper delivery platform 12 supply sheet materials (if toilet roll is opened or material such as film, then from feed rotating shaft feed), material is joined in pressing rubber rollers 9 and pressing bachelor 10 places with the plastic sheeting 4 that scribbles plastics UV gloss oil, and the plastic sheeting 4 that pressing rubber rollers 9 and pressing bachelor 10 will scribble plastics UV gloss oil presses to the material upper surface; By regulating the cylinder 11 that is connected with pressing rubber rollers 9, the pressure force between pressing rubber rollers 9 and the pressing bachelor 10 is controlled at 0.5-2 atmospheric pressure.
Step 3, at the outer setting water-cooling cover 15 of ultraviolet source 14, feed cold water at the water inlet 17 of water-cooling cover 15, the heat that cold water sends ultraviolet source 14 dissipates and discharges from delivery port 18, makes ultraviolet light source 14 be in the working environment of normal temperature; Transmission mouth 19 places at water-cooling cover 15 are provided with infrared filter 16, and the light that ultraviolet source 14 is sent filters, and filters out infrared ray especially, obtains highly purified ultraviolet; Highly purified ultraviolet illumination is mapped to the upper surface of plastic sheeting 4, and the plastics UV gloss oil that is between material and the plastic sheeting 4 is solidified, and making plastic sheeting 4 and material compound is one; At compound tense, by supporting smooth roll 2, felt wrapped roll 3 and press fit device down, material and plastic sheeting 4 are produced an active force, make plastic sheeting 4 when being compound to material surperficial, remain the upper surface that is close to material.
At last, rolling rotating shaft 20 is set, collects finished product with roll-good form.
In other embodiments, other step is identical, when just in the end collecting finished product, finished product collection device is set to comprise two pinch rolls and infeed set-up, two pinch rolls and infeed set-up all are in transmission connection with transmission mechanism, and the finished product behind the multiple film is cut off, and collect finished product with individual sheet form.
In other embodiments, in the step 3, when material and plastic sheeting are applied active force, supporting smooth roll adopts a support member with arc surface to replace, under the cooperation of press fit device and following felt wrapped roll, reach the effect that material and plastic sheeting is applied active force equally, other step is identical.
In other embodiments, in the step 2, can only adopt paper delivery platform supply sheet material or only adopt the feed rotating shaft to supply with the rolling material.
In other embodiments, above-mentioned can be by sprocket wheel with chain to be connected with the rolling rotating shaft with the connected mode of driving mechanism for film rotating shaft, glue spreader, spreading roller, pressing bachelor, paper delivery platform, feed rotating shaft.
Claims (8)
1. a multiple membrane process is characterized in that comprising the steps:
Step 1, plastic sheeting evenly is coated with the last layer optic-solidified adhesive;
Step 2, the plastic sheeting that will scribble optic-solidified adhesive press to the material upper surface;
Step 3, employing ultraviolet light irradiation plastic sheeting solidify the optic-solidified adhesive that is between material and the plastic sheeting, and plastic sheeting and material are combined into one.
2. peritonaeum technology as claimed in claim 1 is characterized in that: in the described step 3, by water-cooling pattern the high temperature that ultraviolet source produced is in time left.
3. peritonaeum technology as claimed in claim 1 is characterized in that: in the described step 3, also adopt infrared filter to filter out infrared ray.
4. peritonaeum technology as claimed in claim 1 is characterized in that: in the described step 3, also plastic sheeting and material are applied an active force, make plastic sheeting be close to the surface of material.
5. as claim 2 or 3 or 4 described peritonaeum technologies, it is characterized in that: in the described step 1, adopt a pair of glue spreader and spreading roller that plastic sheeting is carried out gluing with rotary speed difference.
6. as claim 2 or 3 or 4 described peritonaeum technologies, it is characterized in that: in the described step 2, the pressure force that plastic sheeting is covered on the material is a 0.5-2 atmospheric pressure.
7. as claim 2 or 3 or 4 described peritonaeum technologies, it is characterized in that: in the described step 3, also adopt the mode of water-cooled that the heat that produces in the photocuring process is left.
8. as claim 2 or 3 or 4 described peritonaeum technologies, it is characterized in that: the optic-solidified adhesive that adopts in the described step 1 is a plastics ultraviolet gloss oil.
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| CN2010102577975A CN101983866A (en) | 2010-08-16 | 2010-08-16 | Film compounding process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102577975A CN101983866A (en) | 2010-08-16 | 2010-08-16 | Film compounding process |
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| CN103143476A (en) * | 2013-03-07 | 2013-06-12 | 金红叶纸业集团有限公司 | Coating device and coating method |
| CN104875403A (en) * | 2015-06-17 | 2015-09-02 | 侯兴福 | Piece or film material production line and surface hardening device thereof |
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| CN108819429A (en) * | 2018-08-03 | 2018-11-16 | 扬州智翔石油工程技术有限公司 | Light curing compound material vacuum press-in coating device |
| CN110027308A (en) * | 2019-04-18 | 2019-07-19 | 东莞市驰铭海实业有限公司 | Mechanical device based on antifalsification label automation processing |
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Application publication date: 20110309 |