CN103409079A - Machining process for OCA (Optical Clear Adhesive) flatbed die cutting - Google Patents
Machining process for OCA (Optical Clear Adhesive) flatbed die cutting Download PDFInfo
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- CN103409079A CN103409079A CN2013103636419A CN201310363641A CN103409079A CN 103409079 A CN103409079 A CN 103409079A CN 2013103636419 A CN2013103636419 A CN 2013103636419A CN 201310363641 A CN201310363641 A CN 201310363641A CN 103409079 A CN103409079 A CN 103409079A
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Abstract
The invention discloses a machining process for OCA (Optical Clear Adhesive) flatbed die cutting. The machining process is characterized by comprising the following process flows: selecting raw materials, splitting, carrying out die cutting and waste discharge, inspecting and packaging. According to the machining process for OCA (Optical Clear Adhesive) flatbed die cutting, through controlling the temperature and humidity and accurate die cutting, OCA has the advantages of high clarity, light transparency, adhesion force, high capabilities of resisting fire, water, high temperature and ultraviolet, controlled thickness and uniform interval and cannot cause the problems of yellowing, stripping and deterioration after being used for a long time.
Description
Technical field
The present invention relates to the complete processing of the flat cutter die cutting of a kind of OCA optical cement.
Background technology
The OCA optical cement is one of starting material of important touch-screen, is the optics acryl glue is made without base material, and then at upper and lower bottom, the more release film of one deck of respectively fitting, be a kind of rubber alloy of Double-face adhesive without body material band.It is the best tackiness agent of touch screen.Its advantage is clarity, high light transmittance, full light transmittance > 99%, high adhesion force, high weather-proof, water tolerance, high temperature resistant, uvioresistant, controlled thickness, provide uniform spacing, and long-time use can not produce yellow, peel off and rotten problem.The OCA optical cement is divided into two large classes, and a class is resistance-type, and a class is capacitive, and the optical cement of resistance-type can be divided into 50um and 25um again by the thickness difference, and capacitive optical cement is divided into 100um, 175um, 200um.
Optical cement can be applicable to different fields according to the thickness difference, and its main application is: the laminating of Electronic Paper, transparent devices bonding, projection screen assembling, aerospace or the assembling of military optics, indicating meter assembling, lens assembling, resistive touch screen G+F+F, F+F, capacitive touch screen, panel, ICON and the plastic materials such as glass and polycarbonate is for the special adhesive of cementing transparent optical element.Requirement have water white transparency, light transmission rate more than 90%, consolidation strength is good, can under room temperature or middle temperature, solidify, and the characteristics such as cure shrinkage is little are arranged.The tackiness agent such as organo-silicone rubber, acrylic type resin and unsaturated polyester, urethane, epoxy resin all can cementing optical element.When preparation, usually to add some treatment agents, to improve its optical property or to reduce cure shrinkage.Be suitable for the fixedly various films of the demonstration periphery of mobile apparatus, screen (vinylformic acid, glass screen, touch screen etc.). be one of starting material of important touch-screen.That the optics acryl glue is made without base material, then at upper and lower bottom, the more release film of one deck of respectively fitting, be a kind of rubber alloy of Double-face adhesive without body material band.It is the best tackiness agent of touch screen.Its advantage is clarity, high light transmittance, high adhesion force, high weather-proof, water tolerance, high temperature resistant, uvioresistant, and controlled thickness, provide uniform spacing, and long-time use can not produce yellow, peel off and rotten problem.
Summary of the invention
Goal of the invention: for make optical cement have water white transparency, light transmission rate more than 90%, consolidation strength is good, can under room temperature or middle temperature, solidify, and the characteristics such as cure shrinkage is little are arranged, the invention provides the complete processing of the flat cutter die cutting of a kind of OCA optical cement, with the clarity, light transmission and the adhesion force that improve optical cement and have high fire-resistant, water tolerance, high temperature resistant, uvioresistant, controlled thickness, uniform spacing is provided, and long-time use can not produce yellow, peel off and rotten problem.
Technical scheme: in order to realize above purpose, the complete processing of the flat cutter die cutting of a kind of OCA optical cement of the present invention, is characterized in that its technical process comprises: select former material, itemize, cross cutting, waste discharge, check, packing.
The concrete steps of above-mentioned technique comprise:
(1): prepare the OCA material
(2): itemize
It is 18 ℃-26 ℃ that the OCA material is placed in to temperature, and humidity is thousand grades of dust free chambers of 40%-60%, and dise knife carries out the itemize processing to the OCA material after swabbing, and the OCA material that itemize is complete along its parent roll around the volume direction, rolling is on 6 inches PE pipes;
(3): cross cutting
In die-cutting machine, be provided with die-cutting rule, in the cutter chamber of described die-cutting rule, load onto pad cutter foam, pad cutter foam goes out 0.4-0.6mm than knife up, pneumatics 100-200 time, bimodal 29 °-31 ° of minute surface etching mould, knife up is 2mm-3mm, then adopts die-cutting machine to carry out cross cutting to the OCA material;
(4): waste discharge
Upper and lower surface at the complete OCA material of cross cutting is respectively equipped with upper roller and bottom roller, one end of waste discharge adhesive tape is located to be received on useless roller, and the other end is walked around upper roller, is located on the blowing roller, when upper roller and bottom roller running, the waste discharge adhesive tape glues the scrap rubber on the OCA material walk;
(5): check
The OCA material is placed in to the black background hundred level testing canopies that intensity of illumination is 1000lux-2000lux, and distance product 25-35CM also checks from the two sides of 45 ° of directions to product;
(6): packing
Adopt the static electricity packing bag to pack the OCA material, use vacuum formed box or PET box to pack packing bag;
Ready OCA material is erect and placed or hang that to be positioned over temperature be 18 ℃-26 ℃, and humidity is the dust free chamber of 40%-60%.
Described swabbing is carried out wiping for the sponge that will speckle with silicone oil to the dise knife blade.
The concrete steps that described itemize is processed are:
A, first angle, quantity and the cutter spacing of dise knife are adjusted;
B, then the OCA material is positioned over to the banding machine front end;
C, again the OCA material is pulled through from blade;
D, by roller, drive dise knife and rotate, move forward thereby drive the OCA material, by blade, material is cut into to the little coiled material of respective width.
Described mirror process refers to, the blade of mould carries out polished finish to reduce burr, makes the smooth of the edge of OCA die cutting product without sawtooth.
Beneficial effect: the complete processing of the flat cutter die cutting of OCA optical cement of the present invention, by controlling humiture, accurate cross cutting, the high efficiente callback scrap rubber, make optical cement have high clarity, light transmission and adhesion force and have high fire-resistant, water tolerance, high temperature resistant, uvioresistant, controlled thickness, provide uniform spacing, and long-time use can not produce yellow, peel off and rotten problem.
Embodiment
Below in conjunction with embodiment, further illustrate the present invention.
Embodiment 1
The complete processing of the flat cutter die cutting of a kind of OCA optical cement of the present invention is characterized in that its technical process comprises: prepare OCA material-itemize-cross cutting-waste discharge-check-packing.
1, avoid the OCA material to be squeezed, select section without lousiness, soft flocks are arranged, surface is without the OCA material of impression, folding line, white point, foreign matter, pin hole, depression, bubble, glue wrinkle, joint, and the OCA material is erect and placed or hang that to be positioned over temperature be 18 ℃, and humidity is 40% dust free chamber;
No matter cut or itemize, the material section had better not have lousiness, soft flocks etc., before use, first clean OCA material section, remove too much lousiness, soft flocks etc., avoid because electrostatic adhesion causes foreign matter, dirty bad, for OCA, change the light release film that film uses and also require high-cleanness, high, high-flatness, shift without silicone oil, release face can not have cut.
2, the OCA material being placed in to temperature is 18 ℃, humidity is thousand grades of dust free chambers of 40%, the sponge that speckles with silicone oil is carried out to wiping to the dise knife blade, then the OCA material is carried out to itemize, and the OCA material that itemize is complete along its parent roll around the volume direction, rolling is on 6 inches PE pipes, and it is smooth smooth that the die surfaces of PE pipe is wanted, and prevents that in tube core, OCA produces sags and crests.
3, change the film purpose be when reducing OCA material cross cutting to the extruding of OCA glue, form impression.When the OCA material thickness is less than 50um, do not need to change film, while not needing to change film, the OCA material is placed in to thousand grades of dust free chambers, need change film when the OCA material thickness is greater than 50um, change film thickness and be less than 50um, more Bao Yuehao, during cross cutting, need the OCA material thickness to be less than 50um;
Before cross cutting, first in die-cutting machine, add die-cutting rule, in the cutter chamber of described die-cutting rule, load onto pad cutter foam, described cutter foam goes out 0.4mm than knife up, pneumatics 100 times, with mat cutter foam, enrich whole cutter chamber fully, pad cutter foam commonly used, after cross cutting repeatedly, elasticity weakens, affect the cross cutting quality, foam hardness is selected according to the soft durometer of OCA, bimodal 29 ° of minute surface etching mould, knife up is 2mm, and with acrylic board or special carte the counterdie backing plate during as cross cutting, hardness and planeness during with the assurance die sinking, die-cutting rule need to guarantee that the knife edge is smooth, sharp, non-notch, then adopt die-cutting machine to carry out cross cutting to the OCA material.
4, the upper and lower surface at the complete OCA material of cross cutting is respectively equipped with upper roller and bottom roller, the waste discharge adhesive tape is contained on dispensing shaft, after walking around upper roller, rolling is on receiving useless axle. when upper roller and bottom roller running, the waste discharge adhesive tape glues the scrap rubber on the OCA material walk, as shown in Figure 1, release film waste material and the glue waste material of OCA material surface need to separate waste discharge, connect together to prevent that product glue and waste material are gluing, during waste discharge, pull mutually the section unfairness.
5, the OCA material is placed in to the black background hundred level testing canopies that intensity of illumination is 1500lux, distance product 25CM also checks and has or not bad owing a little the two sides of product from 45 ° of directions, require supervisory personnel's eyesight more than 1.0, for in checking, finding near bad a little the owing a little specification of owing, judge again after using 10 times of magnifying glasses to measure it.
6, after manual full inspection packing is selected non-defective unit in strict accordance with the OQC standard, pack with the static electricity packing bag.Specification: 50Pcs/ bag.Every case product can only be placed one deck, can not stack between every bag.During manual inspection bag, must wear dustless gloves and mouth mask, foreign matter that must clean surface during packing.The PET box that vacuum formed box or other mode moulding are used in outsourcing, can bear certain external pressure, avoids OCA glue to be squeezed and cause impression bad.
Embodiment 2
The complete processing of the flat cutter die cutting of a kind of OCA optical cement of the present invention is characterized in that its technical process comprises: prepare OCA material-itemize-cross cutting-waste discharge-check-packing.
1, avoid the OCA material to be squeezed, select section without lousiness, soft flocks are arranged, surface is without the OCA material of impression, folding line, white point, foreign matter, pin hole, depression, bubble, glue wrinkle, joint, and the OCA material erect is placed or is hung that to be positioned over temperature be 18-26 ℃, humidity is the dust free chamber of 40%-60%;
No matter cut or itemize, the material section had better not have lousiness, soft flocks etc., before use, first clean OCA material section, remove too much lousiness, soft flocks etc., avoid because electrostatic adhesion causes foreign matter, dirty bad, for OCA, change the light release film that film uses and also require high-cleanness, high, high-flatness, shift without silicone oil, release face can not have cut.
2, the OCA material being placed in to temperature is 18-26 ℃, humidity is the dust free chamber of 40%-60%, the sponge that speckles with silicone oil is carried out to wiping to the dise knife blade, then the OCA material is carried out to itemize, and the OCA material that itemize is complete along its parent roll around the volume direction, rolling is on the PE pipe, and it is smooth smooth that the die surfaces of PE pipe is wanted, and prevents that in tube core, OCA produces sags and crests.
3, change the film purpose be when reducing OCA material cross cutting to the extruding of OCA glue, form impression.When the OCA material thickness is less than 50um, do not need to change film, while not needing to change film, the OCA material is placed in to thousand grades of dust free chambers, need change film when the OCA material thickness is greater than 50um, change film thickness and be less than 50um, more Bao Yuehao, during cross cutting, need the OCA material thickness to be less than 50um;
Before cross cutting, first in die-cutting machine, add die-cutting rule, in the cutter chamber of described die-cutting rule, load onto pad cutter foam, described cutter foam goes out 0.5mm than knife up, pneumatics 200 times, with mat cutter foam, enrich whole cutter chamber fully, pad cutter foam commonly used, after cross cutting repeatedly, elasticity weakens, affect the cross cutting quality, foam hardness is selected according to the soft durometer of OCA, bimodal 30 ° of minute surface etching mould, knife up is 2.5mm, and with acrylic board or special carte the counterdie backing plate during as cross cutting, hardness and planeness during with the assurance die sinking, die-cutting rule need to guarantee that the knife edge is smooth, sharp, non-notch, then adopt die-cutting machine to carry out cross cutting to the OCA material
4, the upper and lower surface at the complete OCA material of cross cutting is respectively equipped with upper roller and bottom roller, the waste discharge adhesive tape is contained on dispensing shaft, after walking around upper roller, rolling is on receiving useless axle. when upper roller and bottom roller running, the waste discharge adhesive tape glues the scrap rubber on the OCA material walk, as shown in Figure 1, release film waste material and the glue waste material of OCA material surface need to separate waste discharge, connect together to prevent that product glue and waste material are gluing, during waste discharge, pull mutually the section unfairness.
5, the OCA material is placed in to the black background hundred level testing canopies that intensity of illumination is 1500lux, distance product 30CM also checks and has or not bad owing a little the two sides of product from 45 ° of directions, require supervisory personnel's eyesight more than 1.0, for in checking, finding near bad a little the owing a little specification of owing, judge again after using 10 times of magnifying glasses to measure it.
6, after manual full inspection packing is selected non-defective unit in strict accordance with the OQC standard, pack with the static electricity packing bag.Specification: 50Pcs/ bag.Every case product can only be placed one deck, can not stack between every bag.During manual inspection bag, must wear dustless gloves and mouth mask, foreign matter that must clean surface during packing.The PET box that vacuum formed box or other mode moulding are used in outsourcing, can bear certain external pressure, avoids OCA glue to be squeezed and cause impression bad.
Embodiment 3
The complete processing of the flat cutter die cutting of a kind of OCA optical cement of the present invention is characterized in that its technical process comprises: prepare OCA material-itemize-cross cutting-waste discharge-check-packing.
1, avoid the OCA material to be squeezed, select section without lousiness, soft flocks are arranged, surface is without the OCA material of impression, folding line, white point, foreign matter, pin hole, depression, bubble, glue wrinkle, joint, and the OCA material erect is placed or is hung that to be positioned over temperature be 18-26 ℃, humidity is the dust free chamber of 40%-60%;
No matter cut or itemize, the material section had better not have lousiness, soft flocks etc., before use, first clean OCA material section, remove too much lousiness, soft flocks etc., avoid because electrostatic adhesion causes foreign matter, dirty bad, for OCA, change the light release film that film uses and also require high-cleanness, high, high-flatness, shift without silicone oil, release face can not have cut.
2, the OCA material being placed in to temperature is 18-26 ℃, humidity is the dust free chamber of 40%-60%, the sponge that speckles with silicone oil is carried out to wiping to the dise knife blade, then the OCA material is carried out to itemize, and the OCA material that itemize is complete along its parent roll around the volume direction, rolling is on 6 inches PE pipes, and it is smooth smooth that the die surfaces of PE pipe is wanted, and prevents that in tube core, OCA produces sags and crests.
3, change the film purpose be when reducing OCA material cross cutting to the extruding of OCA glue, form impression.When the OCA material thickness is less than 50um, do not need to change film, while not needing to change film, the OCA material is placed in to thousand grades of dust free chambers, need change film when the OCA material thickness is greater than 50um, change film thickness and be less than 50um, more Bao Yuehao, during cross cutting, need the OCA material thickness to be less than 50um;
Before cross cutting, first in die-cutting machine, add die-cutting rule, in the cutter chamber of described die-cutting rule, load onto pad cutter foam, described cutter foam goes out 0.6mm than knife up, pneumatics 200 times, with mat cutter foam, enrich whole cutter chamber fully, pad cutter foam commonly used, after cross cutting repeatedly, elasticity weakens, affect the cross cutting quality, foam hardness is selected according to the soft durometer of OCA, bimodal 31 ° of minute surface etching mould, knife up is 3mm, and with acrylic board or special carte the counterdie backing plate during as cross cutting, hardness and planeness during with the assurance die sinking, die-cutting rule need to guarantee that the knife edge is smooth, sharp, non-notch, then adopt die-cutting machine to carry out cross cutting to the OCA material.
4, the upper and lower surface at the complete OCA material of cross cutting is respectively equipped with upper roller and bottom roller, the waste discharge adhesive tape is contained on dispensing shaft, after walking around upper roller, rolling is on receiving useless axle. when upper roller and bottom roller running, the waste discharge adhesive tape glues the scrap rubber on the OCA material walk, as shown in Figure 1, release film waste material and the glue waste material of OCA material surface need to separate waste discharge, connect together to prevent that product glue and waste material are gluing, during waste discharge, pull mutually the section unfairness.
5, the OCA material is placed in to the black background hundred level testing canopies that intensity of illumination is 1500lux, distance product 35CM also checks and has or not bad owing a little the two sides of product from 45 ° of directions, require supervisory personnel's eyesight more than 1.0, for in checking, finding near bad a little the owing a little specification of owing, judge again after using 10 times of magnifying glasses to measure it.
6, after manual full inspection packing is selected non-defective unit in strict accordance with the OQC standard, pack with the static electricity packing bag.Specification: 50Pcs/ bag.Every case product can only be placed one deck, can not stack between every bag.During manual inspection bag, must wear dustless gloves and mouth mask, foreign matter that must clean surface during packing.The PET box that vacuum formed box or other mode moulding are used in outsourcing, can bear certain external pressure, avoids OCA glue to be squeezed and cause impression bad.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics, its objective is to allow to be familiar with these those skilled in the art and can to understand content of the present invention enforcement according to this, can not limit the scope of the invention with this.All equivalents that spirit has been done according to the present invention or modification, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. the complete processing of the flat cutter die cutting of OCA optical cement, is characterized in that its technical process comprises: prepare OCA material-itemize-cross cutting-waste discharge-check-packing.
2. the complete processing of the flat cutter die cutting of OCA optical cement according to claim 1, it is characterized in that: concrete steps comprise:
(1): prepare the OCA material
(2): itemize
It is 18 ℃-26 ℃ that the OCA material is placed in to temperature, and humidity is thousand grades of dust free chambers of 40%-60%, and dise knife carries out the itemize processing to the OCA material after swabbing, and the OCA material that itemize is complete along its parent roll around the volume direction, rolling is on 6 inches PE pipes;
(3): cross cutting
In die-cutting machine, be provided with die-cutting rule, in the cutter chamber of described die-cutting rule, load onto pad cutter foam, pad cutter foam goes out 0.4-0.6mm than knife up, pneumatics 100-200 time, bimodal 29 °-31 ° of minute surface etching mould, knife up is 2mm-3mm, then adopts die-cutting machine to carry out cross cutting to the OCA material;
(4): waste discharge
Upper and lower surface at the complete OCA material of cross cutting is respectively equipped with upper roller and bottom roller, one end of waste discharge adhesive tape is located to be received on useless roller, and the other end is walked around upper roller, is located on the blowing roller, when upper roller and bottom roller running, the waste discharge adhesive tape glues the scrap rubber on the OCA material walk;
(5): check
The OCA material is placed in to the black background hundred level testing canopies that intensity of illumination is 1000lux-2000lux, and distance product 25-35CM also checks from the two sides of 45 ° of directions to product;
(6): packing
Adopt the static electricity packing bag to pack the OCA material, use vacuum formed box or PET box to pack packing bag;
The complete processing of the flat cutter die cutting of OCA optical cement according to claim 1 is characterized in that: ready OCA material is erect and placed or hang that to be positioned over temperature be 18 ℃-26 ℃, and humidity is the dust free chamber of 40%-60%.
3. the complete processing of the flat cutter die cutting of OCA optical cement according to claim 2 is characterized in that: described swabbing is carried out wiping for the sponge that will speckle with silicone oil to the dise knife blade.
4. the complete processing of the flat cutter die cutting of OCA optical cement according to claim 2 is characterized in that: the concrete steps that described itemize is processed are:
A, first angle, quantity and the cutter spacing of dise knife are adjusted;
B, then the OCA material is positioned over to the banding machine front end;
C, again the OCA material is pulled through from blade;
D, by roller, drive dise knife and rotate, move forward thereby drive the OCA material, by blade, material is cut into to the little coiled material of respective width.
5. the complete processing of the flat cutter die cutting of OCA optical cement according to claim 2 is characterized in that: described mirror process refers to, the blade of mould carries out polished finish.
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Cited By (13)
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| CN104400823A (en) * | 2014-12-15 | 2015-03-11 | 厦门恒坤新材料科技股份有限公司 | Waste discharge technology for OCA manufacturing process |
| CN104495480A (en) * | 2014-12-16 | 2015-04-08 | 昆山上艺电子有限公司 | Die cutting machine of release paper double sided adhesive tape |
| CN107414929A (en) * | 2017-04-21 | 2017-12-01 | 昆山威斯泰电子技术有限公司 | OCA optical cement die-cutting process |
| CN108340668A (en) * | 2018-04-19 | 2018-07-31 | 天津市晟春阳纸制品有限公司 | A kind of printed matter glue surface printing stripping set composite |
| CN108381668A (en) * | 2018-03-14 | 2018-08-10 | 苏州安洁科技股份有限公司 | A kind of anti-flange die-cutting process for aluminium foil |
| CN109337600A (en) * | 2018-11-16 | 2019-02-15 | 深圳市飞荣达科技股份有限公司 | One side glue and its production method of the glue surface part without glue |
| CN109434954A (en) * | 2018-10-29 | 2019-03-08 | 苏州中航盛世刀辊制造有限公司 | A kind of die cutter roller device with waste discharge function |
| CN110229622A (en) * | 2019-05-31 | 2019-09-13 | 珠海中晟光电科技有限公司 | A kind of production technology of OCA optical cement |
| CN110481047A (en) * | 2019-08-20 | 2019-11-22 | 太仓展新胶粘材料股份有限公司 | The hobboing cutter die cut systems and method of the OCA optical cement of four layers of 1:1 structure |
| CN110628339A (en) * | 2019-10-08 | 2019-12-31 | 东莞市优达胶粘制品有限公司 | OCA optical cement production process |
| CN111975863A (en) * | 2020-07-07 | 2020-11-24 | 太仓展新胶粘材料股份有限公司 | Die cutting method and device for OCA optical film of under-screen camera |
| WO2022036854A1 (en) * | 2020-08-19 | 2022-02-24 | 太仓展新胶粘材料股份有限公司 | Preparation method for optically clear adhesive (oca) having light-shielding edge |
| CN114476760A (en) * | 2022-01-24 | 2022-05-13 | 东莞市鹏威能源科技有限公司 | High-temperature processing equipment for heat-insulation cotton coiled material for aerogel production and heat-insulation cotton coiled material treatment process |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400823A (en) * | 2014-12-15 | 2015-03-11 | 厦门恒坤新材料科技股份有限公司 | Waste discharge technology for OCA manufacturing process |
| CN104495480A (en) * | 2014-12-16 | 2015-04-08 | 昆山上艺电子有限公司 | Die cutting machine of release paper double sided adhesive tape |
| CN107414929A (en) * | 2017-04-21 | 2017-12-01 | 昆山威斯泰电子技术有限公司 | OCA optical cement die-cutting process |
| CN107414929B (en) * | 2017-04-21 | 2018-12-25 | 昆山威斯泰电子技术有限公司 | OCA optical cement die-cutting process |
| CN108381668A (en) * | 2018-03-14 | 2018-08-10 | 苏州安洁科技股份有限公司 | A kind of anti-flange die-cutting process for aluminium foil |
| CN108340668A (en) * | 2018-04-19 | 2018-07-31 | 天津市晟春阳纸制品有限公司 | A kind of printed matter glue surface printing stripping set composite |
| CN109434954A (en) * | 2018-10-29 | 2019-03-08 | 苏州中航盛世刀辊制造有限公司 | A kind of die cutter roller device with waste discharge function |
| CN109337600A (en) * | 2018-11-16 | 2019-02-15 | 深圳市飞荣达科技股份有限公司 | One side glue and its production method of the glue surface part without glue |
| CN110229622A (en) * | 2019-05-31 | 2019-09-13 | 珠海中晟光电科技有限公司 | A kind of production technology of OCA optical cement |
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| CN110481047B (en) * | 2019-08-20 | 2020-07-21 | 太仓展新胶粘材料股份有限公司 | Hob die cutting system and method for OCA optical cement with four-layer 1:1 structure |
| CN110628339A (en) * | 2019-10-08 | 2019-12-31 | 东莞市优达胶粘制品有限公司 | OCA optical cement production process |
| CN111975863A (en) * | 2020-07-07 | 2020-11-24 | 太仓展新胶粘材料股份有限公司 | Die cutting method and device for OCA optical film of under-screen camera |
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Application publication date: 20131127 |