CN101786075A - Low-temperature energy-saving solidifying method and device for photosensitive coating - Google Patents
Low-temperature energy-saving solidifying method and device for photosensitive coating Download PDFInfo
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- CN101786075A CN101786075A CN201010034225A CN201010034225A CN101786075A CN 101786075 A CN101786075 A CN 101786075A CN 201010034225 A CN201010034225 A CN 201010034225A CN 201010034225 A CN201010034225 A CN 201010034225A CN 101786075 A CN101786075 A CN 101786075A
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Abstract
The invention relates to a solidifying method for a photosensitive coating, comprising the following steps: (1) irradiating a workpiece coated with the photosensitive coating by an ultraviolet light source A of which the waveband is within 315-405nm so as to carry out deep solidification processing; and (2) irradiating the workpiece coated with the photosensitive coating by an ultraviolet light source B of which the waveband is within 200-315nm so as to carry out surface solidification processing, wherein the step(1) and step (2) can be simutaneously or sequentially carried out. The invention also discloses a UV solidifying device. The method and the device of the invention can ensure the good solidification effect of the UV coating, have low energy consumption, low temperature, energy conservation, environmental protection, high production efficiency and wide application range, can be especially suitable for surface coating processing of industrial products and UV coating surface solidification processing of precise devices such as cellphones, covering film coatings of pressworks, UV molds, thermo-sensitive materials and the like.
Description
Technical field
The present invention relates to a kind of curing and solidification equipment thereof of coating, specifically relate to a kind of low-temperature energy-saving curing and solidification equipment thereof of photoactive coating.
Background technology
It is to utilize the energy of ultraviolet light to cause low molecule performed polymer in the photoactive coating or oligomer and as polymerization between the monomer molecule of reactive diluent and cross-linking reaction, obtain the paint film that hardens that UV solidifies, and comes down to realize chemical seasoning by forming chemical bond.Ultraviolet ray (UV light) is used by the commerce that is generalized to of success before three more than ten years.Each adhesive manufacturer is at UV photocuring characteristic, develops to be used for serial UV products such as bonding, sealing, printing, and is widely used in various fields such as communication, electronics, optics, printing.
The equipment that UV solidifies has experienced continuous research and development and perfecting process.With medium pressure mercury lamp or high voltage mercury lamp radiation mode is that the production technology of main flow has been used for a long time.But owing to equipment price costliness, maintenance cost height, UV intensity of illumination decay soon, the life-span is short, the surface temperature rise height of illuminated element, disqualification rate height, and defectives such as volume is big, consumptive material is expensive, mercury pollution, industry is devoted to make improvements always.
The appearance of ultraviolet LED (UV-LED) has brought revolutionary variation for UV solidifies industry.It has constant intensity of illumination, outstanding temperature control, the characteristic of portable environmental-protection, and relatively low purchase cost and almost nil maintenance cost are more arranged, to the quality-improving and the energy-saving and cost-reducing impetus that played of UV curing process.But the wavelength of UV-LED is narrower, has only the luminous power of long wave ultraviolet (UVA) UV-LED of 360nm-405nm can satisfy actual solidifying requirements at present, and more only several milliwatts of the luminous power of short wavelength's UV-LED can't satisfy actual solidifying requirements.And the difference of ultraviolet wavelength basis can be divided into three zones: promptly wavelength at the short wave ultraviolet (UVC) of 200NM-280NM, wavelength at the ultraviolet B radiation (UVB) of 280NM-320NM and wavelength long wave ultraviolet (UVA) at 320NM-400NM.UVA mainly plays deep layer curing in UV solidifies, and UVB and UVC then have been the effects of surface cure drying.Therefore bad to UV-LED to the dry tack free effect of most UV coating.Limited its application on industrial surface coating, mobile phone, printed matter membrane, coating, UV moulding and part UV gummed.
Summary of the invention
The inventor through experiment and exploration many times, successfully develops the present invention based on this area working experience for many years finally.
The purpose of this invention is to provide a kind of surface cure and deep layer and solidify the low-temperature energy-saving curing of all good photoactive coating.
Another object of the present invention provides a kind of ultraviolet curing equipment of environment-friendly high-efficiency low-temperature energy-saving.
For reaching above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of low-temperature energy-saving curing of photoactive coating comprises following steps:
(1) shines the workpiece that has applied photoactive coating with wave band at the ultraviolet source A of 315nm～405nm, carry out deep layer and solidify processing;
(2) shine the workpiece that has applied photoactive coating with wave band at the ultraviolet source B of 200nm～315nm, carry out surface cure and handle;
Step (1), (2) are carried out simultaneously or are carried out successively.
We are bright also can further to realize by the following method:
The low-temperature energy-saving curing of described photoactive coating, wherein, described ultraviolet source A is a ultraviolet LED.
The low-temperature energy-saving curing of described photoactive coating, wherein, the wave band of described ultraviolet source B is at 200-280nm.
The low-temperature energy-saving curing of described photoactive coating, wherein, described ultraviolet source B wave band is 240-260nm, luminous power is greater than 50 milliwatts.
The low-temperature energy-saving curing of described photoactive coating, wherein, described ultraviolet source B is amalgam vapour lamp or low pressure mercury lamp.
Above-described photoactive coating is meant ultraviolet-curing paint, photocureable coating such as ultraviolet photo-curing binding agent and ultraviolet photo-curing printing ink blanket.
The invention also discloses a kind of low-temperature energy-saving ultraviolet curing equipment; comprise base; be fixedly arranged on the protective cover on the base; be installed in the ultraviolet source in the protective cover; conveyer and control system; wherein, ultraviolet source is made of at the ultraviolet source B of 200nm～315nm at ultraviolet source A and the wave band of 315nm～405nm jointly wave band, and ultraviolet source A and ultraviolet source B are installed in the top of conveyer side by side.
Preferably, ultraviolet source B wave band is near the 253.7nm, and luminous power is more than 50 milliwatts.
Described low-temperature energy-saving ultraviolet curing equipment, wherein, described ultraviolet source A and ultraviolet source B set gradually along the conveyer traffic direction, and ultraviolet source A is arranged at the front end of ultraviolet source B.
Described low-temperature energy-saving ultraviolet curing equipment, wherein, ultraviolet source A is ultraviolet LED (UV-LED), ultraviolet source B is amalgam vapour lamp or low pressure mercury lamp.
The inventor is on the basis of existing UV-LED light source, after experimental verification repeatedly, increasing amalgam vapour lamp (or low pressure mercury lamp) handles simultaneously or at the surface cure that carries out photoactive coating thereafter, efficiently solve the not good problem of surface treatment that the UV-LED light source causes because of wave band is narrower, thereby enlarged the range of application of UV-LED light source, optimized solidification effect.
Amalgam vapour lamp or low pressure mercury lamp just are applied to aspects such as air-conditioning system sterilization, water sterilization, air cleaning, sewage disposal, exhaust-gas treatment, photochemical reaction, food factory's disinfection, packaging material sterilization at present, yet there are no the report in the curing processing that is applied to photoactive coating.
Owing to adopted above technical scheme, made the present invention possess following technique effect:
1. long service life
Have only 800-3000 hour the service life of mercury lamp in the tradition UV curing apparatus, and reach 20000-30000 hour the service life of UV-LED, and be 8000-16000 hour the service life of amalgam vapour lamp or low pressure mercury lamp.
2, environmental protection more
Traditional mercury lamp has mercury in the bulb, waste disposal, transportation be trouble very, deals with improperly and can produce severe contamination to environment.And UV-LED formula curing machine adopts semiconductor to give out light, not the factor that environment is polluted.In the amalgam vapour lamp is the compound of mercury, and it uses more comparatively safe than mercury lamp, also environmental protection more.
3, energy consumption is low, and is more energy-conservation
Tradition mercury lamp mode curing apparatus is when work, mercury lamp starts slowly, switching influences bulb life, must light always, caused unnecessary power consumption also to shorten the service life of mercury lamp simultaneously, and the power of mercury lamp is higher, reach 1500-3000 watt, energy consumption height but efficient is low, available ultra-violet light-emitting efficient is less than 10%.And UV-LED can be only when the needs ultraviolet ray instant igniting, very energy-conservation, the luminous efficiency height of amalgam vapour lamp or low pressure mercury lamp can reach more than 30%, energy consumption is lower.
4, heat radiation is low, and fraction defective is low
Because mercury lamp has infrared ray when using and sends, the ultraviolet curing machine of traditional mercury lamp mode generally all can make 60-90 ℃ of irradiated product surface rising, and the location of product is subjected to displacement, and especially to heat-sensitive material, fraction defective is higher.And UV-LED does not have infrared ray to send.Irradiated product surface temperature rise is below 10 ℃; The UVC power output of amalgam vapour lamp or low pressure mercury lamp can reach 30%, and power is less, only produces few heat, and the product surface temperature rise can be controlled at below 40 degree usually, even below 20 degree, and the temperature rise of medium pressure mercury lamp is difficult to be controlled at below 40 degree).Find that through experiment the product fraction defective is higher when adopting mercury lamp, reaches 7-8%, use UV-LED light source and amalgam vapour lamp or low pressure mercury lamp to be cured product fraction defective after the processing, improved product percent of pass greatly only at 1.3-1.7%.
5, temperature is low, and is little to the workpiece damage
Tradition mercury lamp surface of the light tube temperature is left fluorescent tube 10 centimeters more than 150 degree more than 600 degree, temperature is too high, to workpiece is that the damage of thermo-responsive workpiece is bigger in fact, and the only irradiation when needed of UV-LED light source, its surface temperature is lower, below 60 degree, temperature rise is below 10 degree.Amalgam vapour lamp or low pressure mercury lamp surface of the light tube leave below fluorescent tube 1 centimeters 80 degree below 150 degree, and temperature is lower, and is little to the workpiece damage.
6, solidification effect is good
The present invention provides under the irradiation of UV-A wave band ultraviolet light at the UV-LED ultraviolet source, and this moment, the top layer of UV coating can not finely be solidified, and enters inner further portion thereby can allow UV-A wave band ultraviolet light see through the top layer well, allows inside obtain fine curing.And then with the irradiation of amalgam vapour lamp or low pressure mercury lamp, amalgam vapour lamp or low pressure mercury lamp send the UVC band ultraviolet and make the fine dry solidification in top layer.Finish to solidify making that the inside and outside solidification effect of product is all good step by step, solidification effect is better.
With method of the present invention and medium pressure mercury lamp and simple UV-LED irradiation contrast, the joints of optical fibre in the optical-fibre communications are cured bonding, respectively the product deep layer is solidified and the surface cure effect, and the qualification rate of product are tested.
Wherein UV glue adopts Japanese Threebond brand, and medium pressure mercury lamp power is 2000W, and the UV-LED wavelength is 365nm, and power is 3W.The amalgam vapour lamp wavelength is 253.7nm, and power is 60W.Wherein the deeply-curing effect is verified pull-off force with pulling experiment; The surface cure effect is verified with surperficial indentation experimental method.Test result is as shown in table 1 below:
Table 1 solidification effect comparison sheet
| Medium pressure mercury lamp | ??UV-LED | The UV-LED+ amalgam vapour lamp | |
| Pull-off force (N) | ??4.98 | ??5.02 | ??5.08 |
| Surface indentation (micron) | ??52 | ??213 | ??48 |
| The product disqualification rate | ??7-8％ | ??1.3-1.7％ | ??1.3-1.7％ |
Can find out that by above-mentioned experimental data deeply-curing effect of the present invention is basic identical with simple UV-LED, omits than medium pressure mercury lamp; Surface cure effect of the present invention and middle pressure mercuri are originally identical, and simple UV-LED improves a lot.And product percent of pass of the present invention is suitable with simple UV-LED, and is high more a lot of than medium pressure mercury lamp.This is because being used in combination of UV-LED of the present invention and amalgam vapour lamp, and simple UV-LED is much lower than the temperature of medium pressure mercury lamp, causes the also just greatly reduction of defective work quantity of the joints of optical fibre because of thermal deformation.
In sum, the inventive method and equipment are good to the solidification effect of UV coating, energy consumption is low, temperature is low, energy-conserving and environment-protective, the production efficiency height, applied range, the UV coating surface that is particularly useful for accurate original papers such as the processing of industrial products face coat, mobile phone, printed matter membrane coating, UV moulding and thermo-sensitive material solidifies to be handled.
Description of drawings
Fig. 1 is the structural representation of ultraviolet curing equipment of the present invention;
Among the figure, 1, the UV-LED light source; 2, amalgam vapour lamp; 3, protective cover; 4: workpiece; 5: conveyer belt; 6: the belt-driven wheel; 7, base.
The specific embodiment
Embodiment 1:
Referring to shown in Figure 1; be a kind of ultraviolet curing equipment; comprise base 7, be fixedly arranged on the protective cover 3 on the base 7, be installed in the ultraviolet source in the protective cover 3; conveyer belt 5, belt-driven wheel 6 and control system; wherein, ultraviolet source is made of jointly UV-LED light source 1 and amalgam vapour lamp 2, and UV-LED light source 1 and amalgam vapour lamp 2 are fixedly installed in the top of conveyer belt 5; be arranged side by side, UV-LED light source 1 is located at the left side of amalgam vapour lamp 2.Surface applied has the workpiece 4 of photoactive coating to be placed on the conveyer belt 5, and under the drive of control system and belt-driven wheel 6, transmit from left to right, pass through from the bottom of UV-LED light source 1 and amalgam vapour lamp 2 successively, while or priority are finished deep layer curing and surface cure.
A kind of curing of photoactive coating comprises the steps:
1, applied the workpiece of photoactive coating with 1 irradiation of UV-LED light source, carried out deep layer and solidify processing;
2, applied the workpiece of photoactive coating with amalgam vapour lamp 2 irradiations, carried out surface cure and handle; Photoactive coating herein is meant UV lacquer, UV glue or the UV printing ink that is subjected to the ultraviolet irradiation dry solidification.
During concrete operations, can shine a step to workpiece simultaneously with UV-LED light source 1 and amalgam vapour lamp 2 finishes deep layer and solidifies and handle and surface treatment, after also can carrying out deep layer curing processing with 1 irradiation of UV-LED light source earlier, carry out surface treatment with amalgam vapour lamp 2 irradiation workpiece again.The best is to carry out carrying out surface cure again after deep layer is solidified earlier to handle.Under the irradiation of the UV-A of UV-LED ultraviolet source 1 wave band ultraviolet light, the top layer of UV coating can not finely be solidified, and enters inner further portion thereby can allow UV-A wave band ultraviolet light see through the top layer well, allows inside obtain fine curing.And then, make the fine dry solidification in top layer with amalgam vapour lamp 2 irradiations.Step curing makes solidification effect better.
Concrete irradiation time, the luminous power that provides according to thickness, the workpiece size of workpiece coating UV coating and the UV-LED/ amalgam vapour lamp that adopted does not coexist and does not wait between several seconds to tens seconds, and production efficiency is higher.
Certainly the ultraviolet source that adopts is not limited in UV-LED light source and amalgam vapour lamp, so long as luminous power is more than 50 milliwatts, wave band is alternative UV-LED light source at the ultraviolet source A of 315nm～405nm, and luminous power is in 50 milliwatts, wave band is at the also alternative amalgam vapour lamp of the ultraviolet source B of 200nm～315nm, as low pressure mercury lamp, and then simultaneously or realize successively the workpiece that is coated with photoactive coating carried out that deep layer is solidified and the processing of surface cure.
The wave band of the best light source B that adopts is at 200-280nm, the amalgam vapour lamp about dominant wavelength 253.7nm for example, luminous efficiency is more than 30%, power from several watts to several hectowatts.
The above is preferred embodiment of the present invention only, is not that the present invention is done any pro forma qualification.Any change that is equal to, modification or differentiation etc. that all those skilled in the art utilize technical scheme of the present invention that the foregoing description is made all still belong in the scope of technical solution of the present invention.
Claims (9)
1. the low-temperature energy-saving curing of a photoactive coating is characterized in that: comprise following steps:
(1) shines the workpiece that has applied photoactive coating with wave band at the ultraviolet source A of 315nm～405nm, carry out deep layer and solidify processing;
(2) shine the workpiece that has applied photoactive coating with wave band at the ultraviolet source B of 200nm～315nm, carry out surface cure and handle;
Step (1), (2) are carried out simultaneously or are carried out successively.
2. the low-temperature energy-saving curing of photoactive coating according to claim 1 is characterized in that:
Described ultraviolet source A is a ultraviolet LED.
3. the low-temperature energy-saving curing of photoactive coating according to claim 1 and 2 is characterized in that:
The wave band of described ultraviolet source B is at 200-280nm.
4. the low-temperature energy-saving curing of photoactive coating according to claim 3 is characterized in that:
Described ultraviolet source B wave band is 240-260nm, and luminous power is greater than 50 milliwatts.
5. according to the low-temperature energy-saving curing of claim 3 or 4 described photoactive coatings, its feature
Be:
Described ultraviolet source B is amalgam vapour lamp or low pressure mercury lamp.
6. a low-temperature energy-saving ultraviolet curing equipment comprises base, is fixedly arranged on the protective cover on the base, is installed in the ultraviolet source in the protective cover, and conveyer and control system is characterized in that:
Ultraviolet source is made of at the ultraviolet source B of 200nm～315nm at ultraviolet source A and the wave band of 315nm～405nm jointly wave band, and ultraviolet source A and ultraviolet source B are installed in the top of conveyer side by side.
7. low-temperature energy-saving ultraviolet curing equipment according to claim 6 is characterized in that:
Described ultraviolet source A and ultraviolet source B set gradually along the conveyer traffic direction, and ultraviolet source A is located at the front end of ultraviolet source B.
8. low-temperature energy-saving ultraviolet curing equipment according to claim 6 is characterized in that:
The wave band of described ultraviolet source B is 200-280nm.
9. according to arbitrary described low-temperature energy-saving ultraviolet curing equipment among the claim 6-8, it is characterized in that:
Described ultraviolet source A is a ultraviolet LED, and described ultraviolet source B is amalgam vapour lamp or low pressure mercury lamp.
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| CN201010034225A CN101786075A (en) | 2010-01-14 | 2010-01-14 | Low-temperature energy-saving solidifying method and device for photosensitive coating |
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| CN201010034225A CN101786075A (en) | 2010-01-14 | 2010-01-14 | Low-temperature energy-saving solidifying method and device for photosensitive coating |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049380A (en) * | 2010-12-31 | 2011-05-11 | 苏州普锐晶科技有限公司 | Application of photosensitive glue |
| CN105856828A (en) * | 2016-03-29 | 2016-08-17 | 深圳市虎成科技有限公司 | PCB ink curing method and curing machine |
| CN107405940A (en) * | 2015-03-06 | 2017-11-28 | 图像电子公司 | The curable print system of cryogenic energy and method |
| CN107738518A (en) * | 2017-10-27 | 2018-02-27 | 南京邮电大学 | Lamp box with ultra-violet curing and UV ozone cleaning function |
| CN107791676A (en) * | 2017-09-22 | 2018-03-13 | 西安理工大学 | A kind of variable wavelength UV LED light solidification equipments |
| CN110180756A (en) * | 2019-04-30 | 2019-08-30 | 深圳市润沃自动化工程有限公司 | A kind of UV curing apparatus and its curing process |
| CN110548661A (en) * | 2019-09-30 | 2019-12-10 | 广西天山电子股份有限公司 | LCD pin solidification equipment |
| CN111413245A (en) * | 2020-04-07 | 2020-07-14 | 佛山市儒林化工有限公司 | Method for measuring solid content of UV irradiation metal printing coating |
| CN111744741A (en) * | 2019-03-26 | 2020-10-09 | 李坤 | Novel UV glue solidification light source system |
| CN112024327A (en) * | 2020-08-12 | 2020-12-04 | Tcl华星光电技术有限公司 | Shading glue curing device and shading glue curing method |
| CN113231282A (en) * | 2020-03-31 | 2021-08-10 | 南京汇鑫光电材料有限公司 | Method for reducing UV (ultraviolet) adhesive shrinkage and drying and curing device thereof |
| CN114632681A (en) * | 2022-03-31 | 2022-06-17 | 广东莱尔新材料科技股份有限公司 | UV curing conveying roller for wafer protective film and preparation method thereof |
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- 2010-01-14 CN CN201010034225A patent/CN101786075A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049380B (en) * | 2010-12-31 | 2013-09-04 | 苏州普锐晶科技有限公司 | Application of photosensitive glue |
| CN102049380A (en) * | 2010-12-31 | 2011-05-11 | 苏州普锐晶科技有限公司 | Application of photosensitive glue |
| CN107405940A (en) * | 2015-03-06 | 2017-11-28 | 图像电子公司 | The curable print system of cryogenic energy and method |
| CN107405940B (en) * | 2015-03-06 | 2019-11-22 | 图像电子公司 | The curable print system of cryogenic energy and method |
| CN105856828A (en) * | 2016-03-29 | 2016-08-17 | 深圳市虎成科技有限公司 | PCB ink curing method and curing machine |
| CN107791676A (en) * | 2017-09-22 | 2018-03-13 | 西安理工大学 | A kind of variable wavelength UV LED light solidification equipments |
| CN107791676B (en) * | 2017-09-22 | 2020-05-22 | 西安理工大学 | Variable wavelength UV-LED photocuring device |
| CN107738518A (en) * | 2017-10-27 | 2018-02-27 | 南京邮电大学 | Lamp box with ultra-violet curing and UV ozone cleaning function |
| CN111744741A (en) * | 2019-03-26 | 2020-10-09 | 李坤 | Novel UV glue solidification light source system |
| CN110180756A (en) * | 2019-04-30 | 2019-08-30 | 深圳市润沃自动化工程有限公司 | A kind of UV curing apparatus and its curing process |
| CN110548661A (en) * | 2019-09-30 | 2019-12-10 | 广西天山电子股份有限公司 | LCD pin solidification equipment |
| CN113231282A (en) * | 2020-03-31 | 2021-08-10 | 南京汇鑫光电材料有限公司 | Method for reducing UV (ultraviolet) adhesive shrinkage and drying and curing device thereof |
| CN111413245A (en) * | 2020-04-07 | 2020-07-14 | 佛山市儒林化工有限公司 | Method for measuring solid content of UV irradiation metal printing coating |
| CN112024327A (en) * | 2020-08-12 | 2020-12-04 | Tcl华星光电技术有限公司 | Shading glue curing device and shading glue curing method |
| WO2022032837A1 (en) * | 2020-08-12 | 2022-02-17 | Tcl华星光电技术有限公司 | Shading adhesive curing apparatus and shading adhesive curing method |
| CN114632681A (en) * | 2022-03-31 | 2022-06-17 | 广东莱尔新材料科技股份有限公司 | UV curing conveying roller for wafer protective film and preparation method thereof |
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Application publication date: 20100728 |