CN109894327B - Coating machine for processing thermal sublimation digital transfer printing paper and processing method thereof - Google Patents
Coating machine for processing thermal sublimation digital transfer printing paper and processing method thereof Download PDFInfo
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- CN109894327B CN109894327B CN201910219363.7A CN201910219363A CN109894327B CN 109894327 B CN109894327 B CN 109894327B CN 201910219363 A CN201910219363 A CN 201910219363A CN 109894327 B CN109894327 B CN 109894327B
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Abstract
The invention discloses a coating machine for processing thermal sublimation digital transfer printing paper and a processing method thereof, and the coating machine comprises a rack, wherein a paper placing rack, a coating mechanism for coating paint, a post-processing mechanism for realizing the formation of transfer base paper and a paper collecting rack are arranged on the rack; two groups of soft scraper coaters coat coating layers on transfer base paper; the soft scraper coater comprises a feeding system and a metering system, wherein the metering system comprises a knife beam and an air cylinder, and a coating knife is movably arranged on the knife beam; the two coating layers are coated on the cloth twice under the action of the two groups of coating knives. Through the technical scheme, the two-time coating operation is adopted, the single-machine speed of the soft scraper coater is increased to 300m/min, the productivity is greatly improved, the stability of the coating layer is ensured, the smoothness of the paper surface is improved, and the method is suitable for market demands.
Description
Technical Field
The invention relates to the technical field of printing of coating machines, in particular to a coating machine for processing thermal sublimation digital transfer printing paper and a processing method thereof.
Background
The textile technology is the traditional prop industry in China, and comprises five parts of textile, printing and dyeing, chemical fiber, clothing, special textile equipment manufacturing and the like, wherein the traditional printing and dyeing technological process comprises the steps of printing a dye on cloth, carrying out water boiling high-temperature treatment and shaping, and finally drying to fix design and color on the cloth; with the progress of society, the printing and dyeing industry also enters a high-speed development period, and the equipment and technical level are obviously improved; the printing process comprises the steps of pretreating, dyeing, printing and finishing the textile material, wherein the dyeing is to enable the dye and the fiber to be chemically or physically and chemically combined, a special coating is coated on transfer printing paper, the printing ink is printed on the transfer printing paper through a printer, the transfer printing paper and cloth are heated in a matched mode, the printing ink is transferred to the cloth and is shaped, and the printing work is completed.
The improved design and color in the printing work is made into the printing roller through typesetting, the printing roller prints and prints the design and color on the cloth, the cloth with different design and color is made through high-temperature boiling, the process flow has high energy consumption and high pollution, the design and color need to be connected with the printer through a computer at present, the printer prints special printing ink on the transfer printing paper, the transfer printing paper is heated on the cloth, the printing and printing work effect is greatly improved, along with the popularization and application of the transfer printing paper, the market demand on the transfer printing paper is improved, and therefore the process requirement for processing the transfer printing base paper into the transfer printing paper is higher and higher.
In order to solve the above problems, chinese patent publication No. CN1769590A proposes a method for producing a water transfer base paper for water transfer ceramic decal paper by using a special coating device, i.e., a gravure roll coater, which is characterized in that the gravure roll coater is equipped with a drying tunnel, a drying shoe or infrared drying device to perform single-side primary or secondary coating on a base paper without any coating process, which has certain physical property requirements. The technical scheme makes full use of the characteristic of accurate metering of the gravure roller coater, and the coating with certain viscosity is transferred to the surface of the base paper after being metered. Compared with the domestic method for coating the water-soluble film-forming substance for many times, the method can ensure that the coating stays on the surface of the base paper as much as possible to obtain a smooth and fine coating surface, so that the surface of the glue layer after glue coating is smooth and fine and has high glossiness. And the coated water transfer base paper has better water absorption, so that the water transfer paper printed with patterns has higher stripping speed.
The above prior art solutions have the following drawbacks: the traditional transfer printing paper has the productivity of 20m/min, after the technology is finished with the first coating weight of 10-20g/m2 and the second coating weight of 8-13g/m2, the highest vehicle speed can only reach 80m/min after two coating operations, the productivity of the transfer printing paper is not greatly improved, and the transfer printing paper cannot meet the requirements of the market on the transfer printing paper.
Disclosure of Invention
The invention aims to provide a coating machine for processing thermal sublimation digital transfer printing paper, which has the advantages that the working speed of the coating machine can reach more than 300m/min, the single machine productivity is greatly improved, and the stable coating quality is ensured by two coating operations.
The invention is realized by the following technical scheme:
a coating machine for processing thermal sublimation digital transfer printing paper comprises a rack, wherein a paper placing frame, a coating mechanism for coating paint, a post-processing mechanism for realizing transfer base paper forming and a paper collecting frame are arranged on the rack, the coating mechanism comprises two groups of soft scraper coaters, the post-processing mechanism comprises two groups of drying systems and two groups of cold rollers, and the drying systems are positioned between the soft scraper coaters and the cold rollers;
the two groups of soft scraper coaters coat coating layers with the same coating amount on transfer base paper;
the soft scraper coater comprises a feeding system and a metering system, the metering system comprises a knife beam rotationally connected with the rack and a pneumatic tire driving the knife beam to move, and a coating knife used for adjusting the coating layer is movably arranged on the knife beam;
the two coating layers are coated on the cloth twice under the action of the two groups of coating knives;
the coating amount of the coating layer is 3-5g/m 2;
the drying system comprises three groups of drying boxes for realizing air-floating type heating and drying, wherein a plurality of groups of arranged spray heads and drying pipelines connected with the spray heads are arranged in the drying boxes, and the drying pipelines are connected with a hot air circulating device;
and a roller type coating device used for coating the coating on the back surface of the transfer base paper is arranged between the cold roller and the traction roller.
By adopting the technical scheme, the air tire in the soft scraper coater drives the coating knife to move, the coating knife performs coating operation with a certain thickness on the transfer base paper under the action of the feeding system, the transfer base paper performs first coating operation, and a coating layer on the transfer base paper is dried by the drying system, cooled by the cold roll and pulled; then, the coating knife carries out secondary coating operation on the transfer base paper after the primary coating operation is finished, the working speed of the soft scraper coater is realized to be 300m/min under the drying action of a drying system and the traction of a cold roll, the quality of a coating layer is stable, the yield is high, and the operation of the coater is stable; for different surfaces, the smooth surface coating amount of the rough surface arm is large, the adhesive force is in direct proportion to the coating amount, the coating amount thickness of the coating layer is 3-5g/m2, and the working speed of the soft blade coater is pulled to 300 m/min; hot air penetrates into the drying pipeline through the hot air circulating device, the hot air is sprayed out from the spray head towards the transfer base paper, the transfer base paper is suspended and heated for drying, the drying effect on the coating is improved, and the energy-saving effect is realized; after the transfer base paper is coated twice, the back of the transfer base paper is uniformly coated by a roller coater and matched with the two groups of coating layers on the front, so that the paper surface of the transfer base paper is smooth, and the quality of the coating layers is stable
Further setting the following steps: the frame is provided with a plurality of groups of tension sensors used for ensuring the normal traction of the transfer base paper, and the groups of tension sensors are respectively arranged at the positions of the paper placing frame, the soft scraper coater, the drying system and the cold roll along the movement direction of the transfer base paper.
Through adopting above-mentioned technical scheme, tension sensor is used for adjusting the size of the tension value of rendition body paper, and the outfit of tension control system is used for guaranteeing the operation of coating machine stable, guarantees the integrality of rendition body paper.
Further setting the following steps: the paper placing frame and the paper collecting frame are both provided with double-station paper collecting frames with automatic paper collecting functions.
By adopting the technical scheme, the paper placing frame and the paper collecting frame realize the effect of automatic paper splicing, the transfer base paper is continuously processed under the condition of no machine halt, and the processing efficiency and the yield of the coating machine are improved.
Further setting the following steps: the paper releasing frame is connected with a traction roller used for ensuring the tension of transfer body paper, and different traction rollers are positioned between the cold roller and the paper collecting frame bracket.
By adopting the technical scheme, the traction effect of the transfer base paper is ensured, and the tension of the transfer base paper changes after the transfer base paper is coated, heated and dried.
Further setting the following steps: the roller type coating device is connected with a drying box, and the drying box is connected with a plurality of groups of drying tires.
By adopting the technical scheme, the drying tire performs drying operation on the back coating layer of the transfer base paper, so that the paper surface of the transfer base paper is smooth and flat.
Further setting the following steps: the width of the transfer base paper is not more than 2000 mm.
By adopting the technical scheme, under the action of high-speed operation of 300m/min of the soft scraper coater, the shearing stress applied to the transfer base paper is increased due to the fact that the width of the base paper is too wide.
The second purpose of the invention is to provide a processing method of a coating machine for processing the thermal sublimation digital transfer printing paper, which has high-speed operation, high working efficiency, stable coating and smooth paper surface,
the invention is realized by the following technical scheme,
a processing technology of a thermal sublimation digital transfer printing coating machine specifically comprises the following steps:
the method comprises the following steps: preparing transfer base paper with the width less than 2000mm, wherein the transfer base paper is pulled by a traction roller on a double-station automatic paper receiving and placing frame, and a tension sensor controls the tension of the transfer base paper;
step two: the turning speed of the soft scraper coater is adjusted to be more than 300m/min, the coating knife carries out the first coating operation on the transfer base paper under the control of the pneumatic tire, and the first coating layer is controlled to be 3-5g/m 2;
step three: drying the transfer base paper by a drying box, heating and drying a first coating layer on the transfer base paper by hot air sprayed by a spray head, and sequentially drying for three times;
step four: cooling and drawing the transfer base paper by a cold roller to prepare medium sample paper;
step five: the soft scraper coater carries out a second coating operation on the medium sample paper, and the thickness of the second coating layer is 3-5g/m 2;
step six: the three groups of drying boxes sequentially perform drying operation on the sample paper, and after drying is completed, the cold roller performs cooling traction to prepare the sample paper;
step seven: and the roller type back coating device performs coating operation on the back surface of the sample paper, the drying box performs drying operation on the sample paper to prepare transfer printing paper, and the paper collecting frame starts to roll.
By adopting the technical scheme, the transfer base paper is drawn under the action of the drawing roller, the soft scraper coater carries out primary coating operation on the transfer base paper, the coating amount of the coating layer is 3-5g/m2, the transfer base paper is dried under the action of three groups of drying boxes in sequence, and then cooled by the cooling roller and moved towards another group of soft blade coating devices, the soft blade coating devices perform secondary coating on the transfer base paper, the coating amount of the secondary coating layer is 3-5g/m2, the transfer base paper also enters a drying box with a three-line shape and the cooling roller to manufacture the middle sample paper, the single machine speed of the soft blade coating devices reaches 300m/min, the back surface of the middle sample paper is uniformly coated with the coating by the roller coating devices, under the drying action of the drying box and the drying tire, the smoothness of the surface of the transfer printing paper under the high-speed production regulation is ensured.
In conclusion, the beneficial technical effects of the invention are as follows:
(1) the transfer base paper is subjected to two coating operations, wherein the coating operations are sequentially performed under the action of a soft scraper coater, a drying box and a cold roll, the sequential coating layer operations are completed, the coating amount of each coating layer is 3-5g/m2, the single machine speed of the soft scraper coater is increased to 300m/min, and the production efficiency of the transfer printing paper is greatly improved.
(2) The roller type coating device is used for coating the back of the paper, twisting the warping deformation of the paper surface and improving the smoothness of the paper surface.
(3) The drying box adopts an air-flotation double-sided drying and hot air circulation device, so that the energy utilization rate and the drying effect are improved, the double-station paper collecting frame and the double-station paper placing frame ensure smooth production, and the yield of the transfer printing paper is improved.
Drawings
FIG. 1 is a schematic view of the overall mechanism of the present invention;
FIG. 2 is a schematic view of a soft blade applicator of the first embodiment;
FIG. 3 is a schematic view of a drying oven according to the first embodiment;
FIG. 4 is a process flow diagram of example two.
Reference numerals: 1. a frame; 2. a paper placing frame; 3. a paper collection frame; 4. a soft blade applicator; 5. a cold roll; 6. a knife beam; 7. a pneumatic tire; 8. a paint knife; 9. a tension sensor; 10. a drying oven; 11. a spray head; 12. drying the pipeline; 13. a hot air circulating device; 14. a traction roller; 15. a roll coater; 16. and (5) drying the cylinder.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example one
Referring to fig. 1, the coating machine for processing thermal sublimation digital transfer printing paper disclosed by the invention comprises a frame 1, wherein a paper placing frame 2, a coating mechanism, a post-processing mechanism and a paper collecting frame 3 are arranged on the frame 1, and the paper placing frame 2 and the paper collecting frame 3 are respectively used for placing and collecting transfer base paper.
Referring to fig. 1, under the action of a paper placing frame 2 and a paper receiving frame 3, transfer base paper is drawn and processed, a comma knife coater is adopted in the production process of the conventional transfer printing paper, a comma coating knife 8 in the comma knife coater is made of round steel with good strength, the straight line error of the movement of the coating knife 8 is small, but the comma knife is fixed and does not rotate, and the precise adjustment of the coating amount is influenced, so that the soft knife coaters 4 are adopted and arranged into two groups, and the soft knife coaters 4 are convenient for ensuring the smoothness of the paper surface and operating the coating knife 8, and ensuring the precise control of the coating amount.
Referring to fig. 2, the soft scraper coater 4 comprises a feeding system and a metering system, the feeding system comprises a feeding box and a feeding cavity located in the feeding box, the feeding cavity is used for filling paint, the paint is a raw material commonly used in the textile industry, the metering system comprises a knife beam 6 located on the frame 1 and an air tire 7 driving the knife beam 6 to swing, a paint knife 8 is movably arranged on the knife beam 6, the paint knife 8 is used for adjusting the amount of the paint on the coating layer, the paint knife 8 is connected with an air cylinder, and the air cylinder drives the paint knife 8 to swing and controls the position of transfer printing base paper; under the action of the feeding cavity and the coating knife 8, the transfer base paper is coated with a coating layer for one time, the coating amount is larger than that of a pressure oil tank of the coating knife 8, and the scraper plasticity of the soft scraper coater 4 is stronger than that of a comma scraper coater, so that the coating amount is convenient to adjust; the coating amount of the coating layer is 3-5g/m2, the smooth surface coating amount of rough surface arms is large for different paper surfaces, the adhesive force is in direct proportion to the coating amount, the coating amount thickness of the coating layer is 3-5g/m2, compared with the coating amount of the coating layer with the coating amount of 8-10g/m2 in the traditional process, the coating layer is convenient to dry, the coating on the coating layer is adhered to the surface of the paper, and the processing speed of transfer base paper is convenient to improve.
Referring to fig. 3, in order to ensure the quality of the coating layer, the post-processing mechanism is used for the forming effect of the transfer base paper, the post-processing mechanism includes two sets of drying systems and two sets of cold rolls 5, the drying systems include three sets of drying boxes 10 connected in sequence, the drying boxes 10 are used for realizing the air-floating type heating and drying effect, a plurality of sets of nozzles 11 arranged in a row and drying pipelines 12 connected with the nozzles 11 are arranged in the drying boxes 10, the drying pipelines 12 are connected with a hot air circulating device 13, hot air flows into the drying pipelines 12 from the hot air circulating device 13 and is then discharged from the nozzles 11, the groups of nozzles 11 are symmetrically arranged relative to the moving route of the transfer base paper, the transfer base paper is dried by the hot air sprayed by the nozzles 11, and under the action of the symmetrically arranged nozzles 11, the surface of the transfer base paper is separated from the surface of the nozzles 11 and is in, the working principle of the drying box 10 refers to the Chinese patent with the publication number of CN202270638U in the prior art, in the production process, steam is mostly adopted as hot air, and under the action of the drying box 10, the consumption of the steam is greatly saved and is reduced to 1.5t from 3 t.
Referring to fig. 1, after the transfer base paper is dried, the transfer base paper is drawn to a cold roll 5, the cold roll 5 is used for carrying out heat transfer through cooling water flowing in the cold roll 5 in the prior art, a first coating layer on the transfer base paper is dried and cooled, the transfer paper is subjected to secondary coating operation under the action of a second group of soft blade coaters 4, the coating amount of the second coating layer is 3-5g/m2, the total coating amount of the second coating layer is matched with that of a traditional coating layer by 6-10g/m2, and the second coating layer is continuously subjected to the action of three groups of drying boxes 10 and the cold roll 5 to complete two coating operations on the transfer base paper.
Referring to fig. 1, the coating amount of the coating layer affects the production efficiency, and meanwhile, the paper placing rack 2 and the paper receiving rack 3 in a single station need to be stopped when paper rolls are replaced, in the invention, the paper placing rack 2 and the paper receiving rack 3 both adopt double-station paper receiving racks with automatic paper receiving functions, old paper rolls and new paper rolls are placed in the double-station paper receiving racks in the automatic paper receiving racks, the connection process of the new paper rolls and the old paper rolls is automatically completed, and the production effect of transfer printing paper is improved; the coating amount of the coating layer is reduced, the working efficiency of the soft scraper coater 4 is convenient to improve, the smoothness and cohesiveness of the two coating layers are ensured under the action of the three groups of drying boxes 10 and the cold roll 5 respectively, the single-machine speed of the soft scraper coater 4 is increased to 300m/min, the single-machine speed of the soft scraper coater is remarkably increased relative to 80-100m/min of the single-machine speed of a comma scraper coater, and the soft scraper coater is suitable for the requirements of the current market.
Referring to fig. 1, under the high-speed production regulation, in order to ensure the finished quality of the transfer printing paper, the width of the transfer base paper is not more than 2000mm, and under the high-speed operation action of 300m/min of a soft scraper coater 4, the shearing stress on the transfer base paper is increased due to the too wide width of the base paper, the paper breaking phenomenon of a paper roll occurs, and the quality of the finished transfer printing paper is influenced; after the transfer base paper is subjected to the operation of two coating layers, the internal stress of the transfer base paper changes, in order to prevent the transfer base paper from being broken, a roller coater 15 is arranged between the second group of cold rollers 5 and the second group of traction rollers 14, the roller coater 15 is used for coating the back of the transfer base paper, the roller coater 15 is connected with a drying box 10, the drying box 10 is connected with four groups of drying cylinders 16, the drying box 10 and the four groups of drying cylinders 16 are used for drying the back coating of the transfer base paper in sequence, the warping deformation of the transfer base paper is twisted, the coating layer is uniformly coated, and the quality of the coating layer is stable, so that the quality of a finished product.
Referring to fig. 1, in the traction process of transfer base paper, five groups of tension sensors 9 are arranged on a frame 1, the sensors are used for ensuring that the transfer base paper is normally pulled, the five groups of tension sensors 9 are respectively arranged as a paper placing frame 2, two groups of soft scraper coaters 4, two groups of drying systems and two groups of cold rollers 5 along the movement direction of the transfer base paper, and each time the transfer base paper moves from one group of equipment to the next group of equipment, the tension sensors 9 are arranged, so that the tension of the transfer base paper is monitored in real time; the position that lies in the transfer base paper on frame 1 and all is provided with carry over pinch rolls 14 from the position of putting paper holder 2 traction play and by the position before the roll-up of delivery roll 3, carry over pinch rolls 14 are used for realizing the traction effect to the transfer base paper, and under tension sensor 9 and carry over pinch rolls 14's effect, soft scraper coating ware 4 high-speed operation is stable, and the rate of paper breakage is extremely low, ensures the normal clear of production.
Example two
Referring to fig. 4, a processing method of a coating machine for processing thermal sublimation digital transfer printing paper comprises the following steps:
the method comprises the following steps: preparing transfer base paper with the width less than 2000mm, wherein the transfer base paper is pulled by a traction roller 14 on a double-station automatic paper receiving and placing frame 2, and the tension of the transfer base paper is controlled by a tension sensor 9;
step two: the turning speed of the soft scraper coater 4 is adjusted to be more than 300m/min, the coating knife 8 carries out the first coating operation on the transfer base paper under the control of the air cylinder, and the first coating layer is controlled to be 3-5g/m 2;
step three: the drying box 10 dries the transfer base paper, hot air sprayed by the spray head 11 heats and dries a first coating layer on the transfer base paper, and the drying process is sequentially carried out for three times;
step four: the cold roller 5 cools and draws the transfer base paper to prepare medium sample paper;
step five: the soft blade coater 4 carries out a second coating operation on the medium paper, and the thickness of the second coating layer is 3-5g/m 2;
step six: the three groups of drying boxes 10 are used for drying the sample paper in sequence, and after drying is finished, the cold roller 5 is used for cooling and drawing to prepare the sample paper;
step seven: the roller type back coater performs coating operation on the back surface of the sample paper, the drying box 10 and the drying cylinder 16 perform drying operation on the sample paper to manufacture transfer printing paper, and the paper collecting frame 3 starts to roll.
After the transfer base paper with the width less than 2000mm passes through the soft scraper coater 4 for the first coating, three groups of drying boxes 10 sequentially dry the coating layer, and the cold roller 5 cools and draws the heated coating layer; preparing the middle sample paper after the first coating layer is finished; the second group of soft scraper coating devices 4 perform second coating operation on the sample paper, the coating amount of the second coated coating layer is equal to that of the first coated coating layer and is 3-5g/m2, the three groups of drying boxes 10 sequentially perform drying treatment on the second coated coating layer, an air-floating double-sided heating and circulating heating system is adopted in each drying box 10, the drying efficiency of the coating layer is convenient to accelerate, steam energy is greatly saved, the sample paper is manufactured after the two coating layer operations are completed, and under the process flow effect of the two coatings, the single-vehicle rotating speed of the soft scraper coating devices 4 can be increased to 300m/min, the single-machine productivity is improved, and the market demand is met; the roller type coating machine is used for coating the back of the sample testing paper, the drying box 10 and the drying cylinder 16 are used for uniformly drying the back coating to manufacture the transfer printing paper, the back coating is used for twisting the warping deformation of a paper sheet, so that the coating layer of the transfer printing paper is uniform and flat, and the quality stability of the transfer printing paper is ensured.
The implementation principle and the beneficial effects of the invention are as follows:
the double-station paper placing frame 2 and the double-station paper receiving frame 3 have a traction effect on transfer base paper, the tension sensor 9 is used for monitoring and adjusting the tension of the transfer base paper in real time, the traction roller 14 is used for directionally drawing the transfer base paper, the soft scraper coater 4 is used for carrying out primary coating operation on the paper surface, the cylinder drives the knife beam 6 to move, the knife beam 6 controls the coating knife 8 to adjust, the coating material of the coating layer is controlled to be 3-5g/m2, the three groups of dryers are used for sequentially drying the primary coating layer, and the cold roller 5 is used for cooling, curing and traction effects, so that the operation process of the primary coating layer is completed.
The tension sensor 9 adjusts the tension of the transfer base paper after the transfer base paper passes through a group of process equipment, under the action of the double-station paper receiving frame 3, the transfer base paper is subjected to secondary coating operation by another group of soft scraper coating devices 4, the coating amount of a coating layer of the secondary operation is still controlled to be 3-5g/m2, three groups of drying boxes 10 sequentially perform drying treatment on the second coating layer, the drying boxes 10 adopt a hot air circulation device 13 and hot air spraying operation, the transfer base paper is dried in an air floating mode, the paper surface smoothness is ensured, the steam is recycled, the energy utilization rate is greatly improved, the operation of the two coating layers is realized, the single-machine speed of the soft scraper coating devices 4 is improved to be more than 300m/min, the production capacity of the transfer base paper is improved, and the market demand is met.
After the two coating operations are finished, the roller type coating device 15 performs the coating operation on the back of the paper, the drying box 10 and the drying cylinder 16 perform the drying operation on the back coating, the warping deformation of the paper sheet is twisted, and the uniformity of a paper surface coating layer and the flatness of the paper sheet are ensured; under the action of the double-station paper placing frame 2 and the double-station paper receiving frame 3, the automatic paper receiving effect is realized, the non-stop operation of the whole process flow is ensured, and the yield of the transfer printing paper is greatly improved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the mechanism, shape and principle of the invention are covered by the protection scope of the invention.
Claims (6)
1. The coating machine for processing the thermal sublimation digital transfer printing paper comprises a rack (1), wherein a paper placing rack (2), a coating mechanism for coating paint, a post-processing mechanism for realizing the formation of transfer base paper and a paper collecting rack (3) are arranged on the rack (1), the coating mechanism comprises two groups of soft scraper coaters (4), the post-processing mechanism comprises two groups of drying systems and two groups of cold rollers (5), and the drying systems are positioned between the soft scraper coaters (4) and the cold rollers (5);
the two groups of soft scraper coaters (4) coat coating layers with the same coating amount on transfer base paper;
the soft scraper coater (4) comprises a feeding system and a metering system, the metering system comprises a knife beam (6) rotationally connected with the rack (1) and a pneumatic tire (7) for driving the knife beam (6) to move, and a coating knife (8) for adjusting the coating layer is movably arranged on the knife beam (6);
the two coating layers are coated on the paper surface for two times under the action of the two groups of coating knives (8);
the coating amount of the coating layer is 3-5g/m 2;
the drying system comprises three groups of drying boxes (10) for realizing air-floating type heating and drying, a plurality of groups of spray heads (11) arranged in a row and drying pipelines (12) connected with the spray heads (11) are arranged in the drying boxes (10), and the drying pipelines (12) are connected with a hot air circulating device (13);
a roller type coating device (15) used for coating the coating on the back surface of the transfer base paper is arranged between the cold roller (5) and the traction roller (14);
the method is characterized by comprising the following steps:
the method comprises the following steps: preparing transfer base paper with the width less than 2000mm, wherein the transfer base paper is pulled by a traction roller (14) on a paper placing frame (2) of double-station automatic paper splicing, and the tension of the transfer base paper is controlled by a tension sensor (9);
step two: the turning speed of the soft scraper coater (4) is adjusted to be more than 300m/min, the soft scraper carries out primary coating operation on the transfer base paper under the control of an air cylinder, and the primary coating layer is controlled to be 3-5g/m 2;
step three: the drying box (10) dries the transfer base paper, the spray head (11) sprays hot air to heat and dry a first coating layer on the transfer base paper, and the drying process is sequentially carried out for three times;
step four: the cold roller (5) cools and draws the transfer base paper to prepare the middle sample paper;
step five: the soft scraper coater (4) carries out secondary coating operation on the medium sample paper, and the thickness of the secondary coating layer is 3-5g/m 2;
step six: the three groups of drying boxes (10) are used for drying the sample paper in sequence, and after drying is finished, the cold roller (5) is used for cooling and drawing to prepare the sample paper;
step seven: the roller type back coating device carries out coating operation on the back surface of the sample paper, the drying box (10) and the drying cylinder (16) carry out drying operation on the sample paper to manufacture transfer printing paper, and the paper collection frame (3) starts to roll.
2. The processing method of the coating machine for processing the thermal sublimation digital transfer printing paper as claimed in claim 1, wherein: the machine frame (1) is provided with a plurality of groups of tension sensors (9) used for ensuring normal traction of transfer base paper, and the groups of tension sensors (9) are respectively arranged at the positions of the paper placing frame (2), the soft scraper coating machine, the drying system and the cold roll (5) along the movement direction of the transfer base paper.
3. The processing method of the coating machine for processing the thermal sublimation digital transfer printing paper as claimed in claim 2, wherein: the paper placing frame (2) and the paper collecting frame (3) are both set to be double-station paper collecting frames with automatic paper collecting functions.
4. The processing method of the coating machine for processing the thermal sublimation digital transfer printing paper as claimed in claim 3, wherein: the paper releasing frame (2) is connected with a traction roller (14) used for ensuring the tension of transfer base paper, and different traction rollers (14) are positioned between the cold roller (5) and the support of the paper collecting frame (3).
5. The processing method of the coating machine for processing the thermal sublimation digital transfer printing paper as claimed in claim 4, wherein: the roll coater (15) is connected with a drying box (10), and the drying box (10) is connected with a plurality of groups of drying cylinders (16).
6. The processing method of the coating machine for processing the thermal sublimation digital transfer printing paper as claimed in claim 5, wherein: the width of the transfer base paper is not more than 2000 mm.
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| CN208414994U (en) * | 2018-05-31 | 2019-01-22 | 河南大指造纸装备集成工程有限公司 | A kind of thermal dye sublimation transfer printing paper coating machine |
| CN109433565A (en) * | 2018-09-18 | 2019-03-08 | 瑞安市东方机械制造有限公司 | A kind of stone paper coating process and its equipment |
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