CN106061123A - Keyboard thin film manufacturing technology - Google Patents
Keyboard thin film manufacturing technology Download PDFInfo
- Publication number
- CN106061123A CN106061123A CN201610480825.7A CN201610480825A CN106061123A CN 106061123 A CN106061123 A CN 106061123A CN 201610480825 A CN201610480825 A CN 201610480825A CN 106061123 A CN106061123 A CN 106061123A
- Authority
- CN
- China
- Prior art keywords
- thin film
- film
- keyboard
- manufacturing process
- film manufacturing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/24—Reinforcing the conductive pattern
- H05K3/245—Reinforcing conductive patterns made by printing techniques or by other techniques for applying conductive pastes, inks or powders; Reinforcing other conductive patterns by such techniques
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/10—Using electric, magnetic and electromagnetic fields; Using laser light
- H05K2203/107—Using laser light
Abstract
The invention discloses a keyboard thin film manufacturing technology, and belongs to the technical field of a circuit board. The technology comprises the steps of carrying out cutting, erecting a volumed base material on a cutting device, spreading out the base material to form thin film, and evenly coating a layer of conductive slurry with thickness of 0.2-0.5mm on the surface of the thin film; and projecting patterns on film to the thin film by employing a projection method, carrying out photosensitive photoprint on the thin film coated with the conductive slurry, importing the thin film after ultraviolet curing into a washing machine, washing the conductive slurry which is not cured by ultraviolet, and punching the manufactured thin film, thereby forming the keyboard thin film finished products according to required sizes.
Description
Technical field
The present invention relates to wiring board techniques field, particularly relate to a kind of keyboard film manufacturing process.
Background technology
Existing flexible circuit board manufacturing process, generally uses printing technology, on the base material of flexible circuit board, by silk
The means such as wire mark brush, are printed onto circuit on base material, then through drying, coat protective layer makes finished product, or by exposing, determining
The modes such as shadow, development, the process of burn into surface form circuit, make plank in described technique, by the circuit of silk screen printing
Plate, due to the reason such as binding agent and conductive agent so that circuit easily weares and teares, the life-span is shorter, uses tradition etching process, although the longevity
Life is preferable, but process complexity is high, and the chemicals used in production process is relatively big to environmental hazard, lacks a kind of technique simple
Single, and finished product life-span preferable flexible circuit board technique.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of keyboard film manufacturing process, by using ultraviolet curing process
Permanent circuit, and use UV solidification resin as binding agent, the life-span of membrane keyboard flexible circuit board is greatly improved.
For solving described technical problem, the technical scheme that the present invention uses is: provide a kind of keyboard film to manufacture work
Skill, including: sawing sheet, the base material of rolling is set up on sawing sheet equipment and is launched into thin film, and the thin film after launching is cleaned,
And remove cleaning solution；Applying conductive base material: the thin film after launching in described step 1 is by coating machine, uniform at film surface
The conductive paste that coating a layer thickness is 0.2-0.5mm；Photocopy: utilize sciagraphy, by the graphic pattern projection on the film on thin film,
Described sciagraphy utilizes ultraviolet source irradiation so that pattern and film movement geo-stationary, and keeps stably irradiating more than 10 seconds,
The thin film being coated with conductive paste carries out photosensitive photocopy；Clean: thin film through ultra-violet curing in described step 3 is passed through cleaning
In machine, wash away not by the conductive paste of ultra-violet curing, retain the circuit needed, form flexible printed substrate；Cut: will complete
The described thin film manufactured is punched out, and forms the keyboard film finished product needing size.
In a preferred embodiment of the present invention, the cleaning solution that cleaning machine uses is ethanol, acetone, toluene, ethyl acetate
In the combination of one or more.
In a preferred embodiment of the present invention, conductive paste is carbon-based conductive slurry or silver base conductive slurry, mixes in conductive paste
There is the light-cured resin of 10%-50%.
In a preferred embodiment of the present invention, base material is the one in PET, PVC, PC.
In a preferred embodiment of the present invention, the thin film on sawing sheet equipment keeps 100-160N tension force.
In a preferred embodiment of the present invention, ultraviolet source is uviol lamp or ultraviolet LED.
In a preferred embodiment of the present invention, the ultraviolet source irradiation time is the 10-60 second.
In a preferred embodiment of the present invention, the ultraviolet source irradiation time is the 15-30 second.
Optimal, the ultraviolet source irradiation time is 20 seconds.
The invention has the beneficial effects as follows: one keyboard film manufacturing process of the present invention, by using ultraviolet curing process to fix
Circuit, and use UV solidification resin as binding agent, the life-span of membrane keyboard flexible circuit board is greatly improved.
Fixing by sciagraphy, simplify existing wiring board fixation process, speed is fast, effective.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement
Example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area is common
All other embodiments that technical staff is obtained under not making creative work premise, broadly fall into the model of present invention protection
Enclose.
The embodiment of the present invention includes:
1) sawing sheet, is set up in the base material of rolling on sawing sheet equipment and is launched into thin film, and carries out the thin film after launching clearly
Clean, and remove cleaning solution；
2) applying conductive base material: the thin film after launching in described step 1, by coating machine, is coated with uniformly at film surface
Cloth a layer thickness is the conductive paste of 0.2-0.5mm；
3) photocopy: utilize sciagraphy, by the graphic pattern projection on the film on thin film, described sciagraphy utilizes ultraviolet source to shine
Penetrating so that pattern and film movement geo-stationary, and keep stably irradiating more than 10 seconds, the thin film being coated with conductive paste is carried out
Photosensitive photocopy；
4) clean: thin film through ultra-violet curing in described step 3 is passed through in cleaning machine, washes away not by ultra-violet curing
Conductive paste, retains the circuit needed, and forms flexible printed substrate；
5) cut: the described thin film completing to manufacture is punched out, forms the keyboard film finished product needing size.
Concretely comprise the following steps:
The PC film of rolling is placed on uncoiling on uncoiler, and in the range of uncoiling tension is maintained at 100-160N, optimal uncoiling is opened
Power is 140N, in uncoiling process, by film surface spray water, removes the dust on thin film or other are dirty, the thinnest
Film passes through scraper plate, removes the water of film surface, and through 60 degree of hot-air seasonings.
In addition to selecting PC as base material, also can be selected for PET, PVC film as base material, PET film uses after also needing activation, with
Improve the adhesion to conductive paste.
PC film after drying enters coating machine, and in coating machine, the one side of thin film is coated a layer thickness more uniformly
The conductive paste of 0.2-0.5mm, this conductive paste is silver base conductive slurry, the nanometer silver powder including about 80% and the conductive bond of 10%
Agent, and 10% diluent.In described formula, it is additionally added the light-cured resin accounting for described total formula weight 20%, is mixed
Silver base conductive is starched.
Certainly, the nanometer silver the most replaceable one-tenth powdered graphite of described silver base conductive slurry, make carbon-based conductive slurry, carbon back is led
During in plasma-based, the ratio of carbon is starched with silver base conductive, the ratio of silver is similar.
On thin film after even spread conductive paste, thin film being sent into fixation facility photocopy, this fixation facility is by a set of projection
Device and synchronizer are constituted, and projection arrangement includes that one group of uviol lamp as ultraviolet source, the most replaceable one-tenth of uviol lamp have
With the ultraviolet LED of equiwavelength, below uviol lamp, it is provided with film frame, is adjustable battery of lens below film frame, by this set
Device, can projecting to the clear patterns on the film in objective plane, and can by regulation battery of lens, adjust pattern big
Little to adapt to different manufacture demands.After thin film enters fixation facility, ultraviolet source is opened, and film pattern projection is to thin film
On, the light-cured resin of the part that thin film is shone by light solidifies, and the silver base conductive slurry not shone by light still maintains one
Determine mobility.
For guarantee light-cured resin by good solidification, ultraviolet light irradiation time is no less than 10 seconds, optimal irradiation time control
System was at about 15 seconds.Further, in Light Curing, pattern can not move, to ensure that layout is the most reliable on thin film again.
For improving equipment work efficiency, available synchronizer drives projection arrangement, in the continuous running of thin film, thin
Projection arrangement above film is driven operation by synchronizer with the speed same with thin film, it is ensured that within the time of solidification, projection
The pattern that device irradiates keeps geo-stationary, it is achieved produce continuously.
Thin film after photocopy is shaped needs to be carried out, and is passed through in the container filling acetone by the thin film after photocopy,
Organic solvent similar compatibility principle is utilized to remove not by materials such as the conducting resinls of photocuring, the printed wire required for reservation, from
The thin film taken out in container through a drip washing, removes the conducting resinl of residual more further.
Certainly cleaning the cleaning solution used can also be other organic solvents such as ethanol, toluene, ethyl acetate.
The conducting resinl being dissolved in organic solvent can re-use through dried.Avoid raw material losses, reduce environment
Pollute.
Thin film after cleaning is die-cut by die cutting device after being further dried, by die-cut for the flexible circuit board of rolling or one-tenth bar
Become suitable size, make keyboard film finished product.
Through the keyboard film finished product being as above processed into, compared to traditional keyboard film have more preferable wearability and
Toughness, is suitable for the manufacture of tactile keyboard, and manufacturing process is simpler, is suitable for streamline automated production.
The present invention a kind of keyboard film manufacturing process provides the benefit that:
One, by using ultraviolet curing process permanent circuit, and use UV solidification resin as binding agent, thin film is greatly improved
The life-span of keyboard flexible circuit board.
Two, fixing by sciagraphy, simplify existing wiring board fixation process, speed is fast, effective.
Three, conducting resinl can directly recycle, it is to avoid waste, reduces environmental pollution.
Four, without chemical attack and high temperature drying, simplify production equipment, be more suitable for large-scale industrial production.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology neck
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (8)
1. a keyboard film manufacturing process, it is characterised in that including:
(1) sawing sheet, is set up in the base material of rolling on sawing sheet equipment and is launched into thin film, and carries out the described thin film after launching clearly
Clean, and remove cleaning solution；
(2) applying conductive base material: the described thin film after launching in described step 1 is by coating machine, uniform at film surface
Coating a layer thickness is the conductive paste of 0.2-0.5mm；
(3) photocopy: utilize sciagraphy, by the graphic pattern projection on the film on thin film, described sciagraphy utilizes ultraviolet source irradiation,
Making pattern and film movement geo-stationary, and keep stably irradiating more than 10 seconds, the thin film being coated with conductive paste is felt
Light photocopy；
(4) clean: thin film through ultra-violet curing in described step 3 is passed through in cleaning machine, washes away not leading by ultra-violet curing
Plasma-based, retains the circuit needed, and forms flexible printed substrate；
(5) cut: the described described thin film completing to manufacture is punched out, forms the keyboard film finished product needing size.
A kind of keyboard film manufacturing process the most according to claim 1, it is characterised in that the cleaning that described cleaning machine uses
Liquid is the combination of one or more in ethanol, acetone, toluene, ethyl acetate.
A kind of keyboard film manufacturing process the most according to claim 1, it is characterised in that described conductive paste is carbon-based conductive
Slurry or silver base conductive slurry, be mixed with the light-cured resin of 10%-50% in described conductive paste.
A kind of keyboard film manufacturing process the most according to claim 1, it is characterised in that described base material is PET, PVC, PC
In one.
A kind of keyboard film manufacturing process the most according to claim 1, it is characterised in that the thin film on described sawing sheet equipment
Keep 100-160N tension force.
A kind of keyboard film manufacturing process the most according to claim 1, it is characterised in that described ultraviolet source is uviol lamp
Or ultraviolet LED.
A kind of keyboard film manufacturing process the most according to claim 1, it is characterised in that described ultraviolet source irradiation time
For the 10-60 second.
A kind of keyboard film manufacturing process the most according to claim 7, it is characterised in that described ultraviolet source irradiation time
For the 15-30 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480825.7A CN106061123A (en) | 2016-06-27 | 2016-06-27 | Keyboard thin film manufacturing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610480825.7A CN106061123A (en) | 2016-06-27 | 2016-06-27 | Keyboard thin film manufacturing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106061123A true CN106061123A (en) | 2016-10-26 |
Family
ID=57167272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610480825.7A Pending CN106061123A (en) | 2016-06-27 | 2016-06-27 | Keyboard thin film manufacturing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106061123A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509248A (en) * | 2020-04-30 | 2020-08-07 | 上海神力科技有限公司 | Rapid forming method of composite polar plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030152849A1 (en) * | 2001-02-15 | 2003-08-14 | Mary Chan-Park | Process for roll-to-roll manufacture of a display by synchronized photolithographic exposure on a substrate web |
| US20050170293A1 (en) * | 2004-02-02 | 2005-08-04 | Kim Sang J. | Exposure apparatus |
| CN102905472A (en) * | 2011-07-27 | 2013-01-30 | 深圳市龙岗区华宇新材料研究中心 | Method for manufacturing conducting circuits and conducting circuit board |
| CN103268180A (en) * | 2013-05-02 | 2013-08-28 | 苏州欧菲光科技有限公司 | Touch screen sensing component and production method thereof |
| CN103325675A (en) * | 2013-05-30 | 2013-09-25 | 深圳顺络电子股份有限公司 | Method for manufacturing electronic element of narrow-line-width electrode |
-
2016
- 2016-06-27 CN CN201610480825.7A patent/CN106061123A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030152849A1 (en) * | 2001-02-15 | 2003-08-14 | Mary Chan-Park | Process for roll-to-roll manufacture of a display by synchronized photolithographic exposure on a substrate web |
| US20050170293A1 (en) * | 2004-02-02 | 2005-08-04 | Kim Sang J. | Exposure apparatus |
| CN102905472A (en) * | 2011-07-27 | 2013-01-30 | 深圳市龙岗区华宇新材料研究中心 | Method for manufacturing conducting circuits and conducting circuit board |
| CN103268180A (en) * | 2013-05-02 | 2013-08-28 | 苏州欧菲光科技有限公司 | Touch screen sensing component and production method thereof |
| CN103325675A (en) * | 2013-05-30 | 2013-09-25 | 深圳顺络电子股份有限公司 | Method for manufacturing electronic element of narrow-line-width electrode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509248A (en) * | 2020-04-30 | 2020-08-07 | 上海神力科技有限公司 | Rapid forming method of composite polar plate |
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Application publication date: 20161026 |