CN113928036A - Front-side high-temperature UV (ultraviolet) imprinting process - Google Patents
Front-side high-temperature UV (ultraviolet) imprinting process Download PDFInfo
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- CN113928036A CN113928036A CN202111144496.6A CN202111144496A CN113928036A CN 113928036 A CN113928036 A CN 113928036A CN 202111144496 A CN202111144496 A CN 202111144496A CN 113928036 A CN113928036 A CN 113928036A
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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
- B41M1/24—Inking and printing with a printer's forme combined with embossing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
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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
- B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
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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
- B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the technical field of production machinery, and discloses a front-side high-temperature UV (ultraviolet) imprinting process, which comprises the following steps: the method comprises the following steps: manufacturing an imprinting mold by using a photoetching technology, preparing an imprinting plate, preparing the material, controlling an ultrasonic cutting machine to cut the plate with the size corresponding to that of the imprinting mold by using a computer according to requirements, and verifying and detecting the size to ensure that the size meets the requirements; step two: and (3) checking the UV glue and the specification of the mold, ensuring that the stock of the UV glue is sufficient and the quality of the UV glue reaches the standard, ensuring whether the specification of the mold is in a composite standard, ensuring that the plate obtained in the first step corresponds to the specification of the mold, and if the plate obtained in the first step does not conform to the specification of the mold, carrying out UV imprinting from the first step again, thereby ensuring the integrity of the imprinting effect. According to the invention, the environment temperature is increased by adopting the infrared ray and hot air drying device while the UV is irradiated, so that the UV adhesive is cured in a high-temperature environment, and the process flow is effectively shortened.
Description
Technical Field
The invention relates to the technical field of UV (ultraviolet) imprinting, in particular to a front high-temperature UV imprinting process.
Background
UV printing is a printing process that dries, cures ink by UV light, requiring that the ink containing the photosensitizer be fitted to a UV curing lamp. The application of UV printing is one of the most important items of the printing industry. Compared with the traditional offset printing, the offset printing has the characteristics of gorgeous color, special printing material, novel product, wide market prospect and the like, and is suitable for the product fields of high-grade business card fine package, high-end commercial picture books, special calendars, special label printing and the like. UV printing ink already covers the fields of offset printing, silk screen, ink jet, pad printing and the like, UV which is generally indicated in the traditional printing world is a printing product effect process, namely, a layer of gloss oil (with gloss, matte, inlaid crystals, glitter powder and the like) is wrapped on a pattern which is printed on a piece of printing product, the product brightness and the artistic effect are mainly increased, the surface of the product is protected, the hardness is high, corrosion and friction are resisted, scratches and the like are not prone to occurring, some multi-film products are changed into UV, the environment-friendly requirement can be met, but UV products are not prone to bonding, and some UV products can only be solved through local UV or polishing. UV embossing, i.e. ultraviolet light embossing.
When the existing domestic UV imprinting is produced, prepared glue is firstly put in a water tank, a net roller is soaked in the glue and coated on a film during production, and then UV imprinting is carried out; the stamping mode comprises two parts: first step is glued the membrane with the net roller, and the membrane of gluing carries out the UV impression on the second portion, however, the coating method of present UV impression's production efficiency is low, increased the cost, caused the waste, increased staff's work load, and the current UV impression technology in existing market is low temperature UV china ink material simultaneously, has certain test risk, for example: the front surface has poor scratch resistance, paint falling after long-term use, poor moisture resistance and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a front high-temperature UV (ultraviolet) imprinting process, which solves the problems that the existing domestic UV imprinting proposed by the background technology is produced by firstly putting prepared glue into a water tank, dipping a mesh roller in the glue and coating the glue on a film during production, and then carrying out UV imprinting; the stamping mode comprises two parts: first step is glued the membrane with the net roller, and the membrane of gluing carries out the UV impression on the second portion, however, the coating method of present UV impression's production efficiency is low, increased the cost, caused the waste, increased staff's work load, and the current UV impression technology in existing market is low temperature UV china ink material simultaneously, has certain test risk, for example: the front surface has poor scratch resistance, paint falling, poor moisture resistance and other problems after long-term use.
The invention provides the following technical scheme: a front side high temperature UV imprint process, comprising the steps of:
the method comprises the following steps: manufacturing an imprinting mold by using a photoetching technology, preparing an imprinting plate, preparing the material, controlling an ultrasonic cutting machine to cut the plate with the size corresponding to that of the imprinting mold by using a computer according to requirements, and verifying and detecting the size to ensure that the size meets the requirements;
step two: checking UV glue and the specification of the mold, ensuring that the stock of the UV glue is sufficient and the quality of the UV glue reaches the standard, ensuring whether the specification of the mold is in a composite standard, ensuring that the plate obtained in the first step corresponds to the specification of the mold, and if the plate obtained in the first step does not conform to the specification of the mold, carrying out UV imprinting from the first step again, thereby ensuring the integrity of the imprinting effect;
step three: covering UV glue on a die, covering a plate on the UV glue, slightly pressing the plate to enable the UV glue to be initially dispersed and spread between the die and the plate, and driving a compression roller to extrude the plate by using an air cylinder to enable the UV glue to be uniformly spread on the die;
step four: irradiating for 5-8s by using a UV light source for primary curing, simultaneously increasing the environmental temperature in the irradiation process, irradiating the UV glue for 40-60s by UV light penetrating through the plate to complete bonding, so that the UV glue is rapidly solidified, drying UV in a high-temperature environment in an accelerated manner, simultaneously improving the imprinting strength, and avoiding falling off or easy aging;
step five: the solidified UV adhesive comprises the lower part of a mould and a plate movable type punching machine, the waste material part of the UV adhesive overflowing the edge of the mould is completely cut off by the punching machine, and the cut waste material is discharged and recycled;
step six: taking the solidified and formed UV glue down from the die through a plate and demoulding;
step seven: sampling and detecting the demoulded finished product, including aging resistance tests, high temperature and high humidity tests, cold and hot circulation tests and the like;
step eight: and packaging and delivering the finished product.
Preferably, the imprint mold manufactured in the first step imprints the mold on the substrate to form the product by using a nanoimprint technology, the mold is placed on the substrate and heated to the glass transition temperature of the substrate, then pressurization is performed, when the temperature reaches the highest heating temperature, heat preservation and pressure maintaining are performed, then pressure reduction and temperature reduction are performed, and when the temperature is reduced to the glass transition temperature, demolding is performed to obtain the final product.
Preferably, the material of the plate in the first step is PET, the thickness of the plate is 0.25mm-0.8mm, the UV glue in the second step is prevented from being in direct contact with operators in the using process, and meanwhile, the content of a photosensitizer in the UV glue is ensured to be 3-6%.
Preferably, in the third step, a mechanical arm is adopted to move the plate and cover the plate above the UV glue, the mechanical arm is connected with a main control system, the main control system is simultaneously connected with a laser sensor, and the laser sensor detects and positions the plate and the die.
Preferably, the UV light source in the fourth step is an ultraviolet light source with a wavelength of 365nm-400nm, the high-temperature environment is an infrared and hot air drying device, and the environment temperature is kept between 80-100 ℃.
Preferably, the aging resistance test in the seventh step refers to a scratch resistance test on the front surface of the printed UV adhesive, the test is carried out by rubbing for 10000 times within 5 minutes, and the temperature interval of the high-temperature high-humidity cold-heat cycle test is controlled to be-50 to +120 degrees.
The invention has the following beneficial effects:
1. this positive high temperature UV impression technology improves ambient temperature through adopting infrared ray and hot air drying device in UV illumination to make UV glue solidify under the environment of high temperature, the effectual technological process that has shortened, the positive impressed watermark of prevention has the risk that drops simultaneously.
2. According to the front high-temperature UV imprinting process, sampling detection is carried out on the imprinted UV glue, and tests such as aging resistance tests, high temperature and high humidity tests, cold and hot circulation tests and the like are included, so that the product testing performance is improved, the cost is saved, and the imprinted finished product cannot be damp-proof or cannot be subjected to paint dropping for a long time.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a front side high temperature UV imprint process, comprising the steps of:
the method comprises the following steps: manufacturing an imprinting mold by using a photoetching technology, preparing an imprinting plate, preparing the material, controlling an ultrasonic cutting machine to cut the plate with the size corresponding to that of the imprinting mold by using a computer according to requirements, and verifying and detecting the size to ensure that the size meets the requirements;
step two: checking UV glue and the specification of the mold, ensuring that the stock of the UV glue is sufficient and the quality of the UV glue reaches the standard, ensuring whether the specification of the mold is in a composite standard, ensuring that the plate obtained in the first step corresponds to the specification of the mold, and if the plate obtained in the first step does not conform to the specification of the mold, carrying out UV imprinting from the first step again, thereby ensuring the integrity of the imprinting effect;
step three: covering UV glue on a die, covering a plate on the UV glue, slightly pressing the plate to enable the UV glue to be initially dispersed and spread between the die and the plate, and driving a compression roller to extrude the plate by using an air cylinder to enable the UV glue to be uniformly spread on the die;
step four: irradiating for 5-8s by using a UV light source for primary curing, simultaneously increasing the environmental temperature in the irradiation process, irradiating the UV glue for 40-60s by UV light penetrating through the plate to complete bonding, so that the UV glue is rapidly solidified, drying UV in a high-temperature environment in an accelerated manner, simultaneously improving the imprinting strength, and avoiding falling off or easy aging;
step five: the solidified UV adhesive comprises the lower part of a mould and a plate movable type punching machine, the waste material part of the UV adhesive overflowing the edge of the mould is completely cut off by the punching machine, and the cut waste material is discharged and recycled;
step six: taking the solidified and formed UV glue down from the die through a plate and demoulding;
step seven: sampling and detecting the demoulded finished product, including aging resistance tests, high temperature and high humidity tests, cold and hot circulation tests and the like;
step eight: and packaging and delivering the finished product.
And D, stamping the stamping die manufactured in the step one on the substrate by adopting a nano-stamping technology to form a product, placing the die on the substrate, heating the die to the glass conversion temperature of the substrate, pressurizing, keeping the temperature and pressure when the temperature reaches the highest heating temperature, reducing the pressure and cooling, and demolding to obtain the final product when the temperature is reduced to the glass conversion temperature.
The material of the plate in the first step is PET, the thickness of the plate is 0.25mm-0.8mm, the UV glue in the second step is prevented from being in direct contact with an operator in the using process, and meanwhile, the content of a photosensitizer in the UV glue is ensured to be 3-6%.
And in the third step, a mechanical arm is adopted to move the plate and cover the plate above the UV adhesive, the mechanical arm is connected with a main control system, the main control system is simultaneously connected with a laser sensor, and the laser sensor detects and positions the plate and the die.
Wherein, the UV light source in the fourth step adopts an ultraviolet light source with the wavelength of 365nm-400nm, the high-temperature environment adopts an infrared ray and hot air drying device, and the environment temperature is kept between 80-100 ℃.
And seventhly, performing an anti-aging test on the front surface of the printed UV adhesive, performing a scratch resistance test by rubbing for 10000 times within 5 minutes, and controlling the temperature interval of the high-temperature high-humidity cold-heat cycle test to be within-50 to +120 ℃.
Example two:
a front side high temperature UV imprint process, comprising the steps of:
the method comprises the following steps: manufacturing an imprinting mold by using a photoetching technology, preparing an imprinting plate, preparing the material, controlling an ultrasonic cutting machine to cut the plate with the size corresponding to that of the imprinting mold by using a computer according to requirements, and verifying and detecting the size to ensure that the size meets the requirements;
step two: checking UV glue and the specification of the mold, ensuring that the stock of the UV glue is sufficient and the quality of the UV glue reaches the standard, ensuring whether the specification of the mold is in a composite standard, ensuring that the plate obtained in the first step corresponds to the specification of the mold, and if the plate obtained in the first step does not conform to the specification of the mold, carrying out UV imprinting from the first step again, thereby ensuring the integrity of the imprinting effect;
step three: covering UV glue on a die, covering a plate on the UV glue, slightly pressing the plate to enable the UV glue to be initially dispersed and spread between the die and the plate, and driving a compression roller to extrude the plate by using an air cylinder to enable the UV glue to be uniformly spread on the die;
step four: irradiating for 6-10s by using a UV light source for primary curing, simultaneously increasing the environmental temperature in the irradiation process, irradiating the UV glue for 30-50s by UV light penetrating through the plate to complete bonding, so that the UV glue is rapidly solidified, drying UV in a high-temperature environment in an accelerated manner, simultaneously improving the imprinting strength, and avoiding falling off or easy aging;
step five: the solidified UV adhesive comprises the lower part of a mould and a plate movable type punching machine, the waste material part of the UV adhesive overflowing the edge of the mould is completely cut off by the punching machine, and the cut waste material is discharged and recycled;
step six: taking the solidified and formed UV glue down from the die through a plate and demoulding;
step seven: sampling and detecting the demoulded finished product, including aging resistance tests, high temperature and high humidity tests, cold and hot circulation tests and the like;
step eight: and packaging and delivering the finished product.
And D, stamping the stamping die manufactured in the step one on the substrate by adopting a nano-stamping technology to form a product, placing the die on the substrate, heating the die to the glass conversion temperature of the substrate, pressurizing, keeping the temperature and pressure when the temperature reaches the highest heating temperature, reducing the pressure and cooling, and demolding to obtain the final product when the temperature is reduced to the glass conversion temperature.
The material of the plate in the first step is PET, the thickness of the plate is 0.25mm-1mm, the UV glue in the second step is prevented from being in direct contact with an operator in the using process, and meanwhile, the content of a photosensitizer in the UV glue is ensured to be 5-8%.
And in the third step, a mechanical arm is adopted to move the plate and cover the plate above the UV adhesive, the mechanical arm is connected with a main control system, the main control system is simultaneously connected with a laser sensor, and the laser sensor detects and positions the plate and the die.
Wherein, the UV light source in the fourth step adopts an ultraviolet light source with the wavelength of 365nm-400nm, the high-temperature environment adopts an infrared ray and hot air drying device, and the environment temperature is kept between 90-110 ℃.
And seventhly, performing an anti-aging test on the front surface of the printed UV adhesive, performing a scratch-resistant test by rubbing for 7000 times within 3 minutes, and controlling the temperature interval of the high-temperature high-humidity cold-heat cycle test to be within-50 to +120 ℃.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A front side high temperature UV imprint process is characterized by comprising the following steps:
the method comprises the following steps: manufacturing an imprinting mold by using a photoetching technology, preparing an imprinting plate, preparing the material, controlling an ultrasonic cutting machine to cut the plate with the size corresponding to that of the imprinting mold by using a computer according to requirements, and verifying and detecting the size to ensure that the size meets the requirements;
step two: checking UV glue and the specification of the mold, ensuring that the stock of the UV glue is sufficient and the quality of the UV glue reaches the standard, ensuring whether the specification of the mold is in a composite standard, ensuring that the plate obtained in the first step corresponds to the specification of the mold, and if the plate obtained in the first step does not conform to the specification of the mold, carrying out UV imprinting from the first step again, thereby ensuring the integrity of the imprinting effect;
step three: covering UV glue on a die, covering a plate on the UV glue, slightly pressing the plate to enable the UV glue to be initially dispersed and spread between the die and the plate, and driving a compression roller to extrude the plate by using an air cylinder to enable the UV glue to be uniformly spread on the die;
step four: irradiating for 5-8s by using a UV light source for primary curing, simultaneously increasing the environmental temperature in the irradiation process, irradiating the UV glue for 40-60s by UV light penetrating through the plate to complete bonding, so that the UV glue is rapidly solidified, drying UV in a high-temperature environment in an accelerated manner, simultaneously improving the imprinting strength, and avoiding falling off or easy aging;
step five: the solidified UV adhesive comprises the lower part of a mould and a plate movable type punching machine, the waste material part of the UV adhesive overflowing the edge of the mould is completely cut off by the punching machine, and the cut waste material is discharged and recycled;
step six: taking the solidified and formed UV glue down from the die through a plate and demoulding;
step seven: sampling and detecting the demoulded finished product, including aging resistance tests, high temperature and high humidity tests, cold and hot circulation tests and the like;
step eight: and packaging and delivering the finished product.
2. The front side high temperature UV imprint process of claim 1, wherein: and D, stamping the stamping die manufactured in the step one on the substrate by adopting a nano-stamping technology to form a product, placing the die on the substrate, heating the die to the glass conversion temperature of the substrate, pressurizing, keeping the temperature and pressure when the temperature reaches the highest heating temperature, reducing the pressure and cooling, and demolding to obtain the final product when the temperature is reduced to the glass conversion temperature.
3. The front side high temperature UV imprint process of claim 1, wherein: the material of the plate in the first step is PET, the thickness of the plate is 0.25mm-0.8mm, the UV glue in the second step is prevented from being in direct contact with operators in the using process, and meanwhile, the content of a photosensitizer in the UV glue is ensured to be 3-6%.
4. The front side high temperature UV imprint process of claim 1, wherein: and in the third step, a mechanical arm is adopted to move the plate and cover the plate above the UV adhesive, the mechanical arm is connected with a main control system, the main control system is simultaneously connected with a laser sensor, and the laser sensor detects and positions the plate and the die.
5. The front side high temperature UV imprint process of claim 1, wherein: the UV light source in the fourth step adopts an ultraviolet light source with the wavelength of 365nm-400nm, the high-temperature environment adopts an infrared ray and hot air drying device, and the environment temperature is kept between 80-100 ℃.
6. The front side high temperature UV imprint process of claim 1, wherein: and seventhly, performing an anti-aging test on the front surface of the printed UV adhesive, performing the test by rubbing for 10000 times within 5 minutes, and controlling the temperature interval of the high-temperature high-humidity cold-heat cycle test to be within-50 to +120 ℃.
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| CN202111144496.6A CN113928036B (en) | 2021-09-28 | 2021-09-28 | Front high-temperature UV imprinting process |
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| CN113928036B (en) | 2023-08-01 |
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