阅读说明：本技术 一种菲林膜制备工艺 (Film preparation process ) 是由 史建新 于 2020-06-19 设计创作，主要内容包括：本发明公开了一种菲林膜制备工艺,其特征在于,具体包括如下步骤：步骤一：对聚酯胶片进行特殊处理；步骤二：利用乳化装置制作乳剂菲林；步骤三：将步骤二中的乳剂菲林利用滚涂机器滚涂在步骤一种的聚酯胶片上；步骤四：对步骤三中涂布后的聚酯胶片进行烘干处理；步骤五：利用机器贴膜的方式制作成所需乳剂厚度的网版。本发明由手工涂布改变为机器涂布,大大的节省了制作工时,提升人员工作效率,提升产能,使用菲林膜制版,又原理多次烘干工序减少为一次烘干工序,提升了制版良率,减少原材浪费,节约了原材资源,同时加热工序的减少,减少了热能排放,降低了环境污染。(The invention discloses a film preparation process, which is characterized by comprising the following steps: the method comprises the following steps: performing special treatment on the polyester film; step two: preparing an emulsion film by using an emulsifying device; step three: rolling and coating the emulsion film in the step two on the polyester film in the step one by using a rolling and coating machine; step four: drying the polyester film coated in the third step; step five: and manufacturing the screen printing plate with the required emulsion thickness by using a machine film pasting mode. According to the invention, manual coating is changed into machine coating, so that the manufacturing working hours are greatly saved, the working efficiency of personnel is improved, the productivity is improved, the plate making is carried out by using a film, the multi-drying procedure is reduced into one-time drying procedure according to the principle, the plate making yield is improved, the raw material waste is reduced, the raw material resources are saved, meanwhile, the heating procedure is reduced, the heat energy emission is reduced, and the environmental pollution is reduced.)

1. A film preparation process is characterized by comprising the following steps:

the method comprises the following steps: performing special treatment on the polyester film;

step two: preparing an emulsion film by using an emulsifying device;

step three: rolling and coating the emulsion film in the step two on the polyester film in the step one by using a rolling and coating machine;

step four: drying the polyester film coated in the third step;

step five: and manufacturing the screen printing plate with the required emulsion thickness by using a machine film pasting mode.

2. A film production process according to claim 1, characterized in that: the special treatment mode of the prepreg in the step one is to perform corona treatment and antistatic treatment on the surface of the prepreg, wherein the corona treatment mode is to generate corona discharge by applying high-frequency power supply/voltage output between a discharge electrode and a grounding roller of a corona treatment device so as to generate radical reaction on the surface of the prepreg and enable the polymer to be crosslinked, the surface is roughened and the wettability of the prepreg to polar solvents is improved, the plasmas enter the surface of a printed body by electric shock and permeation to destroy the molecular structure of the printed body, further, the molecules of the treated surface are oxidized and polarized, and the ions erode the surface by electric shock, so that the adhesion capacity of the surface of a printing stock is improved.

3. A film production process according to claim 1, characterized in that: emulsifying device in step two includes reation kettle (10), puddler (11), discharge gate (12), feed inlet (13) and agitator motor (14), central point department of putting at reation kettle (10) top installs agitator motor (14), the vertical feed inlet (13) that has of reation kettle top (10) portion of agitator motor (14) side, reation kettle (10) inside is vertical installs puddler (11), and the pivot fixed connection of reation kettle (10) and agitator motor (14) is run through on the top of puddler (11), the bottom of reation kettle (10) is provided with discharge gate (13).

4. A film production process according to claim 1, characterized in that: the roller coating machine in the third step comprises a marble operation table (20) and a roller coating groove (21), wherein the roller coating groove (21) is arranged above the marble operation table (20), a press roller (22) is horizontally arranged at the middle position of the roller coating groove (21), a feeding port (212) and a discharging port (213) are respectively arranged at two ends of the roller coating groove (21), a first feeding guide roller (23) and a second feeding guide roller (24) are respectively and horizontally arranged at the inner side and the outer side of the feeding port (212), a discharging roller (25) is horizontally arranged at one end, close to the feeding port (212), of the roller coating groove (21) through a support (26), a first discharging guide roller (27) and a second discharging guide roller (29) are respectively and horizontally arranged at two inner sides of the discharging port (213), a scraper (28) is obliquely arranged above the first discharging guide roller (27), and a material collecting roller (210) is horizontally arranged at one end, close to the discharging port (213), of the roller coating groove (21), through the support (26), and a material receiving servo motor (211) is fixed on the side wall of the marble operating platform (20) below the material receiving roller (210), and the output end of the material receiving servo motor (211) is connected with the end part of the material receiving roller (210) through a belt pulley mechanism.

5. A film preparation process according to claim 4, wherein: the upper surface of the first feeding guide roller (23), the horizontal central line of the second feeding guide roller (24), the upper surface of the first discharging guide roller (27) and the horizontal central line of the second discharging guide roller (29) are all located on the same horizontal plane, and the height of the lower surface of the pressing roller (22) is smaller than that of the upper surface of the first feeding guide roller (23).

6. A film production process according to claim 1, characterized in that: the drying time in the fourth step is 30 minutes, and the drying temperature is controlled to be 50 +/-2 ℃.

Technical Field

The invention relates to the technical field of film production, in particular to a film preparation process.

Background

The existing screen plate manufacturing process generally coats photosensitive glue on the surface layer of a steel wire mesh, or manually coats or mechanically coats, then carries out ultraviolet exposure through a film negative using a customer drawing, develops a pattern in a developing mode, and finally is manufactured in an inspection process, so that the purpose of printing and using of a customer is achieved.

The existing plate making process needs to be subjected to multiple processes such as screening, plate washing, coating, exposure, development and the like, most of the processes are still manually operated, particularly the coating process, most of the processes use manual coating, the uniformity of the coating cannot be accurately controlled, the uniformity of the film thickness of the screen printing plate is a key parameter for printing of a client, the quality and the slurry cost of the client printing are directly impressed, meanwhile, the manual coating cannot reach the film thickness required by the client at one time, therefore, multiple engineering coatings need to be dried for multiple times, resources and labor hours are wasted, and meanwhile, the drying is carried out for multiple times, tiny particles in the air can fall onto the screen printing plate photosensitive adhesive due to the influence of the environment of an oven, foreign matters exist in products of the client, and the energy loss of the hot air drying screen printing plate is large. Meanwhile, the flatness of the P surface of the screen printing plate coated by hand is poor, and the improvement of a mirror surface process is needed to be particularly increased, so that the reject ratio of the screen printing plate and the manufacturing working hour are further increased, and meanwhile, the waste of emulsion is great by hand coating, and the manufacturing cost of the screen printing plate is increased.

Disclosure of Invention

The invention aims to provide a film preparation process to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a film preparation process is characterized by comprising the following steps:

the method comprises the following steps: performing special treatment on the polyester film;

step two: preparing an emulsion film by using an emulsifying device;

step three: rolling and coating the emulsion film in the step two on the polyester film in the step one by using a rolling and coating machine;

step four: drying the polyester film coated in the third step;

step five: and manufacturing the screen printing plate with the required emulsion thickness by using a machine film pasting mode.

Preferably, the prepreg surface is treated by corona treatment and antistatic treatment in the first step, wherein the corona treatment is performed by applying high-frequency power/voltage output between a discharge electrode and a grounding roller of a corona treatment device to generate corona discharge, so that the surface of the prepreg generates radical reaction to crosslink the polymer, the surface is roughened and the wettability of the prepreg to polar solvents is improved, the plasma damages the molecular structure of the printed body by electric shock and penetration into the surface of the printed body, the treated surface molecules are oxidized and polarized, and the ion electric shock erodes the surface, so that the adhesion capability of the surface of the printing material is improved.

Preferably, the emulsification device in step two includes reation kettle, puddler, discharge gate, feed inlet and agitator motor, and the central point at reation kettle top puts the department and installs agitator motor, and the vertical feed inlet that has in reation kettle top of agitator motor side, reation kettle's inside vertical stirring rod of installing, and the pivot fixed connection of reation kettle and agitator motor is run through on the top of puddler and through the shaft coupling, and reation kettle's bottom is provided with the discharge gate.

Preferably, the roller coating machine in the third step comprises a marble operation table and a roller coating groove, the roller coating groove is arranged above the marble operation table, a compression roller is horizontally arranged in the middle of the roller coating groove, a feeding port and a discharging port are respectively arranged at two ends of the roller coating groove, a first feeding guide roller and a second feeding guide roller are respectively and horizontally arranged at the inner side and the outer side of the feeding port, a discharging roller is horizontally arranged at one end of the roll coating groove close to the feeding port through a bracket, a first discharging guide roller and a second discharging guide roller are respectively and horizontally arranged at two sides of the inner side of the discharging port, a scraping plate is obliquely arranged above the first discharging guide roller, a material receiving roller is horizontally arranged at one end of the roll coating groove close to the discharging port through a bracket, and a material receiving servo motor is fixed on the side wall of the marble operating platform below the material receiving roller, and the output end of the material receiving servo motor is connected with the end part of the material receiving roller through a belt pulley mechanism.

Preferably, the upper surface of the first feeding guide roller, the horizontal center line of the second feeding guide roller, the upper surface of the first discharging guide roller and the horizontal center line of the second discharging guide roller are all located on the same horizontal plane, and the height of the lower surface of the pressing roller is smaller than that of the upper surface of the first feeding guide roller.

Preferably, the drying time in the fourth step is 30 minutes, and the drying temperature is controlled to be 50 +/-2 ℃.

Compared with the prior art, the invention has the beneficial effects that:

1. manual coating is changed into machine coating, so that the manufacturing working hours are greatly saved, the working efficiency of personnel is improved, and the productivity is improved;

2. the film is used for plate making, and the principle that a plurality of drying processes are reduced into one drying process is adopted, so that the plate making yield is improved, the raw material waste is reduced, the raw material resources are saved, meanwhile, the heating process is reduced, the heat energy emission is reduced, and the environmental pollution is reduced;

3. the film is used for manufacturing the screen printing plate, so that the film thickness uniformity of the screen printing plate is effectively ensured, the film thickness stability of a product is improved, the printing quality of a client is improved, and the raw material waste of the client is saved;

4. the flatness of the polyester film is utilized, the mirror surface process required by the original manual coating is reduced, the production procedures are reduced, and the product yield and efficiency are improved.

Drawings

FIG. 1 is a schematic structural diagram of an emulsifying device according to the present invention;

FIG. 2 is a schematic front view of the coating machine of the present invention;

FIG. 3 is a schematic top view of the coating machine of the present invention.

In the figure: 10. a reaction kettle; 11. a stirring rod; 12. a discharge port; 13. a feed inlet; 14. a stirring motor; 20. a marble operating table; 21. rolling and coating a groove; 22. a compression roller; 23. a first feeding guide roller; 24. a second feeding guide roller; 25. a discharge roller; 26. a support; 27. a first discharge guide roller; 28. a squeegee; 29. a second discharge guide roller; 210. a material receiving roller; 211. a material receiving servo motor; 212. a feeding port; 213. and (4) a discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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.

The embodiment provided by the invention comprises the following steps: a film preparation process is characterized by comprising the following steps:

the method comprises the following steps: performing special treatment on the polyester film;

step two: preparing an emulsion film by using an emulsifying device;

step three: rolling and coating the emulsion film in the step two on the polyester film in the step one by using a rolling and coating machine;

step four: drying the polyester film coated in the third step;

step five: manufacturing a screen printing plate with the required emulsion thickness by using a machine film pasting mode;

the special treatment mode of the polyester film in the step one is to carry out corona treatment and antistatic treatment on the surface of the polyester film, wherein the corona treatment mode is to generate corona discharge by applying high-frequency power supply/voltage output between a discharge electrode and a grounding roller of a corona treatment device so as to generate radical reaction on the surface of the polyester film to enable polymers to be crosslinked, roughen the surface and increase the wettability of the polyester film to polar solvents, and plasmas enter the surface of a printed body by electric shock and permeation to damage the molecular structure of the printed body so as to oxidize and polarize the molecules of the treated surface, and the ions erode the surface by electric shock, so that the adhesion capacity of the surface of a printing stock is increased;

referring to fig. 1, the emulsifying device in the second step includes a reaction kettle 10, a stirring rod 11, a discharge port 12, a feed port 13 and a stirring motor 14, the stirring motor 14 is installed at the center position of the top of the reaction kettle 10, the feed port 13 is vertically arranged at the top 10 of the reaction kettle on the side of the stirring motor 14, the stirring rod 11 is vertically installed inside the reaction kettle 10, the top end of the stirring rod 11 penetrates through the reaction kettle 10 and is fixedly connected with a rotating shaft of the stirring motor 14 through a coupler, the discharge port 12 is arranged at the bottom of the reaction kettle 10, raw materials are introduced into the reaction kettle 10 through the feed port 13, and then the stirring rod 11 is used for stirring and emulsifying operation;

the emulsification method specifically comprises the steps of injecting raw materials into a reaction kettle 10 from a feeding hole 13, starting a stirring motor 11, driving a stirring rod 11 to rotate in the reaction kettle 10 by the rotation of the stirring motor 11, stirring and emulsifying the raw materials in the reaction kettle 10, and discharging emulsified liquid through a discharging hole 1 for use;

referring to fig. 2-3, the roll coating machine in step three includes a marble operating platform 20 and a roll coating tank 21, the roll coating tank 21 is disposed above the marble operating platform 20, a press roller 22 is horizontally disposed in the middle of the roll coating tank 21, a material inlet 212 and a material outlet 213 are respectively disposed at two ends of the roll coating tank 21, a first material inlet guide roller 23 and a second material inlet guide roller 24 are respectively horizontally disposed at the inner side and the outer side of the material inlet 212, a material discharge roller 25 is horizontally disposed at one end of the roll coating tank 21 close to the material inlet 212 through a bracket 26, a first material discharge guide roller 27 and a second material discharge guide roller 29 are respectively horizontally disposed at two inner sides of the material outlet 213, a scraping plate 28 is obliquely disposed above the first material discharge guide roller 27, a material receiving roller 210 is horizontally disposed at one end of the roll coating tank 21 close to the material outlet 213 through the bracket 26, and a material receiving servo motor 211 is fixed on the side wall of the marble operating platform 20 below the, the output end of the material receiving servo motor 211 is connected with the end part of the material receiving roller 210 through a belt pulley mechanism;

the upper surface of the first feeding guide roller 23, the horizontal center line of the second feeding guide roller 24, the upper surface of the first discharging guide roller 27 and the horizontal center line of the second discharging guide roller 29 are all located on the same horizontal plane, the height of the lower surface of the press roller 22 is smaller than that of the upper surface of the first feeding guide roller 23, so that the press roller 22 can press a film into emulsion film in the roll coating groove 21 to be in complete contact with the emulsion film, and the film is coated by matching with the discharging rollers 25 and the receiving rollers 210 at two ends;

the roll coating mode is specifically as follows: firstly, fixing a polyester film on a feeding roller 25, then sequentially passing through a second coating guide roller 24, a first feeding guide roller 23, a compression roller 22, a first discharging guide roller 27, a scraper 28 and a second discharging guide roller 29, finally winding the polyester film on a receiving roller 210, pressing the polyester film into a rolling coating groove 21 through the compression roller 22 in the middle, and uniformly sticking emulsion in the rolling coating groove 21 on the surface of the polyester film;

the drying time in the fourth step is 30 minutes, and the drying temperature is controlled to be 50 +/-2 ℃.

The invention relates to a film preparation process, which is characterized in that emulsion is uniformly attached to the surface layer of a specially processed polyester film in a roll coating mode, the film is prepared after drying, and screen plates with various emulsion thicknesses are prepared in a film pasting mode by a machine. More than roller coating machine one end is equipped with the marble platform, platform one end has the blowing roller that is used for the fixed polyester film of placing, there is a fixed bolster platform other one end, a receipts material roller for placing different parameters, it has a removal chuck to receive the material roller rear end, the chuck presss from both sides tight polyester film, pour the emulsion into marble platform surface, move at the uniform velocity through servo motor, the emulsion passes through the screw rod, even distribution and polyester film surface, servo motor removes according to the length of setting for, the emulsion film that makes is put and is dried in the oven of 50 ℃, cut into the specification that is fit for the use, put and store in dry environment.

And then, adhering the emulsion film to the screen plate in a film adhering mode by using a machine, wherein the emulsion film with various specifications and thicknesses is applied to multiple client parameters.

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. Any reference sign in a claim should not be construed as limiting the claim concerned.