CN108080204B - Double-side controlled coating method for image photosensitive adhesive - Google Patents
Double-side controlled coating method for image photosensitive adhesive Download PDFInfo
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- CN108080204B CN108080204B CN201710102578.1A CN201710102578A CN108080204B CN 108080204 B CN108080204 B CN 108080204B CN 201710102578 A CN201710102578 A CN 201710102578A CN 108080204 B CN108080204 B CN 108080204B
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- coating
- glue spreader
- photosensitive
- rubber roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0808—Details thereof, e.g. surface characteristics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0873—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work
- B05C1/0882—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work responsive to the distance between two rollers, e.g. between the coating roller and a backing roller
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials For Photolithography (AREA)
Abstract
The invention discloses a double-sided controlled coating method of an image photosensitive adhesive, which comprises the following steps: 1) adding the photosensitive emulsion into a photosensitizer, mixing and dissolving the photosensitive emulsion in latex, fully stirring the mixture, and standing the mixture for 1 to 2 hours, wherein the viscosity is controlled to be 3000-15000 Pa.s; 2) preparing a nitrile rubber glue spreader by adopting butadiene and acrylonitrile through a low-temperature emulsion polymerization method; 3) carrying out texture processing on the surface of the glue spreader: the grain spacing is 0.15mm, the depth is 0.20mm, and the shape is a U-shaped groove; 4) adding talcum powder into the nitrile rubber to ensure that the hardness of the glue spreader reaches 20-50 ℃; heating to 70 deg.C, stirring, cooling to normal temperature, and shaping; 5) two same rubber rollers are arranged up and down, a lower rubber roller is fixed on a rack, and a servo motor is adopted for height adjustment of the upper rubber roller relative to the lower rubber roller; the invention can realize the simultaneous coating of two surfaces, reduce the drying times and save the energy consumption and the processing time; the coating is convenient to adjust according to different thickness requirements of different materials, the processing precision is high, and the flexibility is high; long service life and low replacement cost of consumables.
Description
Technical Field
The invention relates to the technical field of metal etching, in particular to a double-sided controlled coating method of an image photosensitive adhesive.
Background
In the production life of the present day, the metal etching tool derived from the integrated circuit board production method is a very sunward industry because the processing method has many advantages, firstly, from the type of metal, the traditional circuit board processing corresponds to a single copper product, and the metal etching process satisfies the processing of various metals, and the etching has the following advantages compared with the processes such as laser, stamping and the like: non-precise products can be processed, and the tolerance can be plus or minus 0.005mm at most; the processing method can process very thin metal materials, and the thickness of the thin material is 0.03 mm; no stress is generated, and products processed by machining modes such as stamping and the like often have large internal stress, so that the processed products are deformed or changed in other physical properties; the precision machining can be realized; the die opening preparation procedure is not needed, and the processing efficiency is high; a mold is not needed to carry out a verification experiment, so that the cost is low; therefore, etching has been widely used by modern manufacturing industries; the specific flow of etching production is as follows: inspecting incoming materials, cleaning, coating, exposing, developing, repairing points, etching, removing films, cleaning, drying, inspecting and packaging; in the coating, a material to be sensitized, commonly called a photosensitive resist, is uniformly coated on the surface of a metal, and two methods are generally used at present: one is adopting the screen printing mode, comprising selecting a screen plate, selecting a metal screen frame, carrying out pretreatment, cleaning the screen plate and drying, distributing photosensitive adhesive, drying after primary coating, and continuously repeating the coating process on the dried metal material surface; the method can only coat one surface at a time, and the coating of the second surface can be carried out after the coating is finished and drying is needed, so that the coating efficiency is low; both surfaces need to be dried, so that energy loss is large; the coating thickness is not easy to control; the service cycle of the silk screen is short, the defective rate is high, and the replacement cost is high; the accuracy of the mesh number is poor, and the material has poor solvent and economic resistance; the second is to use a hard steel roller to coat the photosensitive resist; firstly, processing two iron rollers, plating hard chrome and then manufacturing a rotating device; the metal material belt to be coated is pulled out from a gap between the two rotating rollers at a constant speed, photosensitive glue is coated on the upper surface of the metal material belt in the pulling process, and the other surface of the metal material belt is prevented from being coated by the same device at a distance of about 5 meters in the same way; the method has high requirement on the flatness of the material; the method is only suitable for large-scale production, cannot meet small-scale production, and has high equipment cost; the steel coating roller has short service cycle, high replacement cost and high product reject ratio; in view of the above, there is a need for improvement and research on the coating process in metal etching in the prior art to solve the above problems.
Disclosure of Invention
The invention aims to provide a double-side controlled coating method of an image photosensitive resist, which has high coating efficiency, low energy consumption and low consumable replacement cost, and solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a double-side controlled coating method for image photosensitive glue comprises the following steps:
1) selection of the photoresist and control of its viscosity: selecting double-liquid type and solvent-resistant type photosensitive emulsion, dissolving the corresponding photosensitizer in water according to the processing requirement, fully stirring the mixture in the emulsion, and standing for 1-2 hours, wherein the viscosity is controlled to be 3000-15000 Pa.s; preparing a photosensitive emulsion before coating for two hours, and coating the prepared photosensitive emulsion after completely defoaming;
2) preparing a glue spreader: preparing a nitrile rubber glue spreader from butadiene and acrylonitrile by a low-temperature emulsion polymerization method;
3) carrying out texture processing on the surface of the glue spreader: the grain spacing is 0.15mm, the depth is 0.20mm, and the shape is a U-shaped groove; the groove of the U-shaped groove is used for storing photosensitive glue;
4) carrying out hardness treatment on the glue spreader: adding talcum powder into the nitrile rubber to ensure that the hardness of the glue spreader reaches 20-50 ℃; heating to 70 ℃, fully stirring, cooling to normal temperature to complete hardness treatment, and obtaining a molded glue spreader;
5) installing and adjusting a glue spreader: two rubber rollers with the same appearance and size are taken, bearings are arranged at two ends of the rubber rollers, the two rubber rollers are arranged up and down, the lower rubber roller is fixed on the frame and driven by a motor to rotate at a controlled speed under the action of the bearings, the upper rubber roller is movably arranged relative to the lower rubber roller, the upper rubber roller is driven by the motor to rotate, and the height of the upper rubber roller is adjusted digitally by a servo motor.
As a further scheme of the invention: in the step 4), the weight ratio of the nitrile rubber to the talcum powder is 15: 1.
As a still further scheme of the invention: the digital adjusting method of the servo motor in the step 5) comprises the following steps: the position where the two glue coating rollers just contact is regarded as a point 0, the height of 1mm is divided into 2000 equal parts through pulse signals of a servo motor, and the number of the pulse signals corresponding to different intervals is 5-50 according to different heights.
Compared with the prior art, the invention has the beneficial effects that: the glue spreader is provided with the U-shaped groove for placing the printing ink, so that double-sided coating can be simultaneously carried out, the procedure of drying twice after coating is reduced by carrying out double-sided coating once, only one-time drying is carried out after double-sided gluing, the energy consumption is reduced, the processing time is shortened, compared with screen coating and steel roller coating, the time for gluing the same metal material is reduced by half, and the production efficiency is high; the distance between the two glue coating rollers is controlled by the servo motor, so that the adjusting time of equipment before processing is greatly saved, the gap between the two glue coating rollers can be controlled to be lifted or lowered to the corresponding height by the servo motor through simply inputting the number of the servo motor corresponding to the corresponding material corresponding to the material with different thicknesses, and each subdivision reaches the accuracy of 0.0025 due to the subdivision of 2000 equal parts of the height of 1mm, so that the thickness requirement required in actual production is fully met, the coating thickness of the photosensitive adhesive can be accurately controlled, the processing precision is high, and the processing flexibility is high; the glue spreader has good elasticity and toughness, is not easy to deform and damage, has long service time of not less than 6 months, and reduces the replacement cost of consumables; the distance between the two glue coating rollers is adjustable, so that the equipment can adapt to materials with various thicknesses, various thicknesses can be coated by simple adjustment, the coating requirement of the thickness of 0.005-0.5mm is met, and the processing flexibility is high.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In an embodiment of the invention, a double-sided controlled coating method of an image photosensitive adhesive comprises the following steps:
1) selection of the photoresist and control of its viscosity:
the photosensitive emulsion is a photosensitive material commonly used at present and generally comprises a single-liquid type photosensitive emulsion and a double-liquid type photosensitive emulsion, wherein a photosensitizer is mixed into emulsion during production of the single-liquid type photosensitive emulsion and can be used without preparation during use, the photosensitizer is dissolved in water according to a formula before the double-liquid type photosensitive emulsion is used, and then the photosensitizer is fully mixed in the emulsion and placed for 1-2 hours, and then the double-liquid type photosensitive emulsion can be used after bubbles completely disappear; the double-liquid type photosensitive glue selected by the invention is prepared two hours before coating;
the photosensitive emulsion can be generally divided into solvent-resistant photosensitive emulsion and water-resistant photosensitive emulsion, can resist various organic solvents, and is suitable for printing of oil-based ink; the water-resistant photosensitive emulsion is suitable for printing of water-based ink, namely water-soluble printing coating, such as textile printing paste, wherein a screen plate of the water-resistant photosensitive emulsion can be subjected to demoulding and recycling; the latter is generally not recoverable by stripping; the invention selects the anti-solvent photosensitive resist;
the fluidity of the photosensitive glue in the using process determines the uniformity of the whole coating work, so the coating method of the invention requires and limits the viscosity of the photosensitive glue, and the control is 3000-15000 Pa.s;
2) preparing a glue spreader: preparing a nitrile rubber glue spreader from butadiene and acrylonitrile by a low-temperature emulsion polymerization method; the nitrile rubber has excellent solvent resistance, higher wear resistance, better heat resistance and strong bonding force;
3) carrying out texture processing on the surface of the glue spreader: the grain spacing is 0.15mm, the depth is 0.20mm, and the shape is U-shaped; the groove of the U-shaped groove is used for storing photosensitive glue; the photosensitive glue can be coated on the material while flowing and rotating the glue spreader, and the photosensitive glue is stored in the lines of the glue spreader, so that the coating thickness of the photosensitive glue is stably controlled;
4) carrying out hardness treatment on the glue spreader: adding talcum powder into the nitrile rubber to ensure that the hardness of the glue spreader reaches 20-50 ℃; heating nitrile rubber and talcum powder to the weight ratio of 15:1, fully stirring at 70 ℃, cooling to normal temperature to finish hardness treatment, and obtaining a molded glue spreader; the glue spreader processed in the way has good elasticity and toughness in actual production, so that the glue spreader cannot be damaged by burrs of materials, the service life of coating equipment is prolonged, and the replacement cost of consumable materials is reduced;
5) installing and adjusting a glue spreader: two rubber rollers with the same appearance and size are taken, bearings are arranged at two ends of the two rubber rollers, the two rubber rollers are arranged up and down, the lower rubber roller is fixed on a frame and driven by a motor to rotate at a controlled speed under the action of the bearings, the upper rubber roller is movably arranged relative to the lower rubber roller, the upper rubber roller is driven by the motor to rotate, and the height of the upper rubber roller is adjusted digitally by a servo motor; the digital adjusting method of the servo motor comprises the following steps: the position where the two glue coating rollers just contact is regarded as a point 0, the height of 1mm is divided into 2000 equal parts through pulse signals of a servo motor, then the pulse signals corresponding to different intervals according to different heights are sequentially numbered into 5-50, when coatings of different materials and different thicknesses are coated, the accurate gap between the two rollers can be obtained only by inputting corresponding digital numbers, and therefore the photosensitive adhesive layer meeting the requirements is coated.
The specific implementation method for gluing by adopting the image photosensitive adhesive double-sided controlled coating method of the invention comprises the following steps:
1. preparing materials:
taking 10kg of AQ2253 photosensitive emulsion, adding 2000ml of photosensitizer to prepare diluted coating photosensitizer; adding 200 + -25 ml of diluted photosensitizer for coating into 1kg of ink, and stirring for 5-10min to obtain ink with viscosity of 461.8-757.8; sealing unused ink and placing in a shade, wherein the service life of the ink is not more than 72h after unsealing;
2. turning on the power supply of the equipment;
3. checking and setting, setting the pressure of the roller coater, and setting the drying temperature of the dryer according to the parameters in the table 1:
TABLE 1 drying temp. setting table for drying machine
4. And (3) finished product detection: the surface is uniform, and the defects of obvious chromatic aberration, dirt, scratch and the like are avoided;
5. ink effectiveness regulation:
a measuring cup 700ml of ink for coating with viscosity of 461.8-757.8, and the specified flow rate is 2 minutes, 46 seconds +/-10 seconds;
5. and (3) detecting the viscosity of the ink: respectively detecting a disease record before the morning and afternoon work;
6. ink filter screen replacement frequency: 1 day/time, cleaning and recording;
7. the environmental temperature of the printing chamber is controlled at 25 +/-5 ℃ and the relative humidity is 40-60%.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (2)
1. A double-sided controlled coating method of image photosensitive resist is characterized by comprising the following steps:
1) selection of the photoresist and control of its viscosity: selecting double-liquid type and solvent-resistant type photosensitive emulsion, dissolving the corresponding photosensitizer in water according to the processing requirement, fully stirring the mixture in the emulsion, and standing for 1-2 hours, wherein the viscosity is controlled to be 3000-15000 Pa.s; preparing a photosensitive emulsion before coating for two hours, and coating the prepared photosensitive emulsion after completely defoaming;
2) preparing a glue spreader: preparing a nitrile rubber glue spreader from butadiene and acrylonitrile by a low-temperature emulsion polymerization method;
3) carrying out texture processing on the surface of the glue spreader: the grain spacing is 0.15mm, the depth is 0.20mm, and the shape is a U-shaped groove; the groove of the U-shaped groove is used for storing photosensitive glue;
4) carrying out hardness treatment on the glue spreader: adding talcum powder into the nitrile rubber to ensure that the hardness of the glue spreader reaches 20-50 ℃, wherein the weight ratio of the nitrile rubber to the talcum powder is 15: 1; heating to 70 ℃, fully stirring, cooling to normal temperature to complete hardness treatment, and obtaining a molded glue spreader;
5) installing and adjusting a glue spreader: two rubber rollers with the same appearance and size are taken, bearings are arranged at two ends of the rubber rollers, the two rubber rollers are arranged up and down, the lower rubber roller is fixed on the frame and driven by a motor to rotate at a controlled speed under the action of the bearings, the upper rubber roller is movably arranged relative to the lower rubber roller, the upper rubber roller is driven by the motor to rotate, and the height of the upper rubber roller is adjusted digitally by a servo motor.
2. The method for double-sided controlled coating of an image photosensitive resist according to claim 1, wherein the servo motor digital adjustment method in step 5) comprises: the position where the two glue coating rollers just contact is regarded as a point 0, the height of 1mm is divided into 2000 equal parts through pulse signals of a servo motor, and the number of the pulse signals corresponding to different intervals is 5-50 according to different heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710102578.1A CN108080204B (en) | 2017-02-24 | 2017-02-24 | Double-side controlled coating method for image photosensitive adhesive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710102578.1A CN108080204B (en) | 2017-02-24 | 2017-02-24 | Double-side controlled coating method for image photosensitive adhesive |
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| CN108080204A CN108080204A (en) | 2018-05-29 |
| CN108080204B true CN108080204B (en) | 2021-02-26 |
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| CN103374159A (en) * | 2012-04-23 | 2013-10-30 | 武汉纺织大学 | Preparation method of conductive leather roller for spinning |
| CN103041948B (en) * | 2013-01-10 | 2015-09-23 | 湖南南方搏云新材料有限责任公司 | A kind of charcoal felt list/Double surface gluing apparatus |
| CN103435878B (en) * | 2013-08-26 | 2015-03-25 | 南京金三力橡塑有限公司 | High-hardness high-temperature-resistant rubber roller for aluminum foil/aluminum sheet production line and manufacturing method thereof |
| CN105623113B (en) * | 2016-03-23 | 2018-08-10 | 南京金三力橡塑有限公司 | A kind of short fiber reinforced high-temperature-resrubber rubber roller, rubber rollers sizing material and its manufacturing method |
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Effective date of registration: 20210127 Address after: 315000 Zhixin Road 21, Chengdong Industrial Park, Xiangshan County, Ningbo, Zhejiang Applicant after: NINGBO DONGSHUN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 315800 No. three, 51 Dagang Road, Beilun District, Zhejiang, Ningbo Applicant before: NINGBO DONGSHENG INTEGRATED CIRCUIT ELEMENT Co.,Ltd. |
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