CN109518514B

CN109518514B - Preparation method and pulping device of economical digital thermal sublimation transfer paper

Info

Publication number: CN109518514B
Application number: CN201910052421.1A
Authority: CN
Inventors: 计皓; 张琦; 王幸; 邱慈祥; 景甜; 安田田; 赵利
Original assignee: Zhejiang Kaifeng New Material Co ltd
Current assignee: Zhejiang Kaifeng New Material Co ltd
Priority date: 2018-10-29
Filing date: 2019-01-21
Publication date: 2021-10-15
Anticipated expiration: 2039-01-21
Also published as: CN109518514A

Abstract

The invention discloses a preparation method of saving-type digital thermal sublimation transfer paper and a pulping device thereof, the digital thermal sublimation transfer paper prepared by the method has the advantages of good uniformity, high strength, good dimensional stability, high drying speed during ink-jet printing and high transfer rate, the pulping device can be used for automatic operation, and can obtain slurry with specified requirements according to different conditions by arranging a circulating liquid box, and the physical performance of the digital thermal sublimation transfer paper is improved by a mechanical and ultrasonic pulping mode.

Description

Preparation method and pulping device of economical digital thermal sublimation transfer paper

Technical Field

The invention relates to the technical field of special paper, in particular to a preparation method of saving type digital thermal sublimation transfer paper and a pulping device thereof.

Background

The thermal sublimation transfer printing is that the pictures and texts such as the portrait, the landscape, the character and the like are printed on the thermal sublimation transfer printing paper in a mirror image mode by using an ink-jet printer filled with thermal sublimation transfer printing ink, and the thermal sublimation transfer printing paper is heated to about 200 ℃ by a thermal transfer printing device so that the ink on the thermal sublimation transfer printing paper is sublimated and infiltrated into a printing stock, so that the color image on the paper can be vividly transferred to the materials of textile, porcelain cup, porcelain plate and metal, the common digital thermal sublimation transfer paper in the market can ensure to bear high ink jet amount when the thermal sublimation coating amount of at least 7-8g/m2 is required to be coated, in order to save the cost of the base paper, the gram weight of the base paper is generally lighter, so that the coating thickness is increased when the coating weight is increased, this will certainly cause the base paper to be soaked by a large amount of moisture to cause paper defects such as creases and seersucker, thereby affecting the appearance of the digital thermal sublimation transfer paper. Therefore, a preparation method of saving type digital thermal sublimation transfer paper is provided.

Disclosure of Invention

The invention aims to provide a preparation method of saving-type digital thermal sublimation transfer paper and a pulping device thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of saving-type digital thermal sublimation transfer paper comprises the following steps:

step 1, crushing: crushing bleached softwood pulp and hardwood pulp in an crushed crusher into paper pulp liquid with the concentration of 3-5%, wherein the ratio of the bleached softwood pulp to the hardwood pulp is 1: 1.5-1: 3;

step 2, devillicating and brooming: separating fibers of the wood pulp fibers by pulping the crushed raw pulp, controlling the beating degree to be 40-45 DEG SR, and controlling the wet weight of the fibers to be 1.5-2.0 g;

step 3, stirring: adding a reinforcing auxiliary agent into the pulp slurry after pulping, wherein the reinforcing auxiliary agent is cationic modified corn starch, and the adding amount of the cationic modified corn starch is controlled to be 0.5-2.0% of the total mass of the absolute dry pulp;

step 4, manufacturing paper: purifying the prepared slurry, drying the slurry in a long net forming vat cold vat, and performing soft press polish finishing;

step 5, secondary application: feeding the manufactured semi-finished transfer printing paper into a first scraper coating device through an automatic paper receiving and withdrawing device, coating a coating liquid on the surface of base paper, controlling the solid content of the coating liquid to be 40-50%, drying the coated paper subjected to primary coating through a first group of hot air drying boxes, feeding the coated paper into a second scraper coating device, coating a thermal sublimation transfer printing coating on the surface of the primary coating, drying through a second group of hot air drying boxes, and controlling the solid content of the thermal sublimation transfer printing coating to be 10-20%;

step 6, gum treatment: the transfer printing paper after passing through the second group of hot air drying devices passes through a group of adhesive tape backing devices and then enters a third group of hot air drying box, and the solid content of the adhesive tape backing material is controlled to be 0.2-1%;

and 7, post-treatment: and (3) processing the transfer paper after the gum is dried in a state-adjusting cylinder, adjusting the paper temperature, balancing the paper temperature, performing soft press finishing, and then performing horizontal paper rolling to obtain the transfer paper meeting the requirements.

In the technical scheme, the primer coating liquid in the step 5 comprises, by mass, 70 parts of water, 0.2 part of a bactericide, 100 parts of liquid triple superphosphate, 30 parts of sodium carboxymethyl cellulose sizing material HC and 0.7 part of a water repellent agent, and the topcoat coating liquid comprises, by mass, 550 parts of water, 67 parts of sodium carboxymethyl cellulose sizing material HC and 33 parts of quick-drying starch.

A saving type beating device for digital thermal sublimation transfer paper comprises a first beating cavity, a second beating cavity, a third beating cavity, a first transition cavity, a second transition cavity, a pulp storage transition cavity and a circulating mechanism, wherein a feed inlet is formed in the top of the first beating cavity, the first transition cavity and the second transition cavity are sequentially arranged between the first beating cavity and the second beating cavity from top to bottom, the first transition cavity and the second transition cavity are simultaneously communicated with the first beating cavity and the second beating cavity, a first filter plate is fixed at the joint of the first transition cavity and the second transition cavity, so that the pulp in the first transition cavity can reach the second transition cavity after being filtered by the first filter plate, a first spiral beating head is arranged in the first beating cavity, and a first rotating motor is fixed on the cavity wall of the first beating cavity, the rear part of the first spiral pulping head is fixed on the output end of a first rotating motor on the first pulping cavity, the front part of the first spiral pulping head sequentially penetrates through the first transition cavity and the second pulping cavity, a second spiral pulping head is arranged below the first spiral pulping head, a second rotating motor is fixed on the cavity wall of the second pulping cavity, the rear part of the second spiral pulping head is fixed on a second rotating motor on the second pulping cavity, the front part of the second spiral pulping head sequentially penetrates through the second transition cavity and the first pulping cavity, the lower end of the second pulping cavity is communicated with a pulp storage transition cavity, a sieve plate is fixed at the bottom of the second pulping cavity, so that pulp in the second pulping cavity is filtered by the sieve plate and then reaches the pulp storage transition cavity, and meanwhile, the first pulping cavity and the second transition cavity are connected with the pulp storage transition cavity through connecting pipes The cavity UNICOM, the thick liquid storage transitional cavity still UNICOM outside with circulation mechanism, circulation mechanism include the bottom be the circulation liquid case on inclined plane, be provided with the filter screen baffle in the circulation liquid case, the filter screen baffle will the circulation liquid case divide into upper strata and lower floor, the last surface vertical of filter screen baffle is provided with first baffle and second baffle, first baffle height is greater than the second baffle, the cavity bottom that forms between first baffle and the second baffle is provided with pressure sensor, the first back flow pipe that first baffle department set up with store thick liquid transitional cavity UNICOM, the second back flow pipe that sets up on the filter screen baffle with first beating chamber UNICOM, the bottom of circulation liquid case is fixed with the third back flow, the third back flow sets up in the lower floor of circulation liquid case, and with store thick liquid transitional cavity UNICOM, the setting is in the circulating liquid incasement third back flow inlet portion is higher than the setting and is in store up the export portion of the third back flow on the thick liquid transitional coupling chamber, be provided with first reflux pump on the pipeline of first back flow, and first reflux pump fixed mounting is in the bottom of circulating liquid case, be provided with the second backwash pump on the pipeline of second back flow, and second reflux pump fixed mounting is at the top of circulating liquid case, the bottom of storing up thick liquid transitional coupling chamber is equipped with the third chamber of beating, and stores up thick liquid transitional coupling chamber and third chamber of beating and pass through connecting pipe UNICOM, be provided with ultrasonic wave generating device in the third chamber of beating.

In the above technical scheme, the first spiral beating head and the second spiral beating head are arranged in parallel up and down.

In the above technical scheme, the first pulping chamber and the second transition chamber are both provided with second filter plates at the inner bottom.

Among the above-mentioned technical scheme, the bottom of sieve is fixed with vibrating motor, the four corners bottom of sieve respectively is equipped with a sliding sleeve, and the sliding sleeve is fixed at the inner wall that stores up thick liquid transition chamber, the top of sliding sleeve slides and pegs graft there is the slide bar, the slide bar overcoat has the spring, the top of spring is fixed in the sieve bottom, the top of bottom mounting sliding sleeve of spring.

In the technical scheme, a supporting table is arranged below the first pulping chamber and the circulating liquid tank, a supporting rod is fixed at the top of the supporting table, and the first pulping chamber and the circulating liquid tank are fixed on the supporting table through the supporting rod.

Compared with the prior art, the invention has the beneficial effects that: the digital thermal sublimation transfer paper prepared by the method has the advantages of good uniformity, high strength, good dimensional stability, high drying speed during ink-jet printing and high transfer rate, and the pulping device can be automatically operated, can obtain the slurry required by regulations according to different conditions by arranging the circulating liquid box, and improves the physical performance of the digital thermal sublimation transfer paper by a mechanical ultrasonic pulping mode.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial cross-sectional view of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is an enlarged view of the area A of the present invention;

FIG. 5 is a schematic side view of the present invention;

FIG. 6 is a schematic cross-sectional view of the present invention;

FIG. 7 is a schematic cross-sectional side view of the present invention;

FIG. 8 is an enlarged structural view of the area B of the present invention.

In the figure: 1-a first pulping chamber; 2-a first transition chamber; 3-a second transition chamber; 4-a second pulping chamber; 5-a feed inlet; 6-a first filter plate; 7-a first screw pulping head; 8-a first rotating electrical machine; 9-a second screw beating head; 10-a second rotating electrical machine; 11-a pulp storage transition cavity; 12-sieve plate; 13-a connecting tube; 14-a circulation mechanism; 15-circulating the liquid tank; 16-screen separators; 17-a first baffle; 18-a second baffle; 19-a pressure sensor; 20-a first return pipe; 21-a first reflux pump; 22-a second return conduit; 23-a second reflux pump; 24-a third return conduit; 25-a third beating chamber; 26-an ultrasonic wave generating device; 27-a second filter plate; 28-a vibration motor; 29-a sliding sleeve; 30-a spring; 31-a slide bar; 32-a support table; 33-support bar.

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.

Example 1:

a preparation method of saving-type digital thermal sublimation transfer paper comprises the following steps:

crushing bleached softwood pulp and hardwood pulp in an crushed disintegrator according to the proportion of 1:1.5 into pulp liquid with the concentration of 3 percent; pulping the crushed raw pulp to separate wood pulp fibers, controlling the beating degree to be 40 DEG SR, and controlling the wet weight of the fibers to be 1.5 g; adding cation modified corn starch into the pulp slurry after pulping treatment, controlling the addition of the cation modified corn starch to be 0.5 percent of the total mass of the absolute dry pulp, gelatinizing a 6 percent cation starch solution at 95 ℃, and then controlling the viscosity to be 700mpa.s at 25 ℃ and the pH value to be 4 at 21 ℃; purifying the slurry, drying the slurry in a long net forming vat cold cylinder, and performing soft press polish finishing; sending the manufactured semi-finished transfer paper into a first scraper coating device through an automatic tipping and paper withdrawing device, coating a coating liquid on the surface of base paper, controlling the solid content of the coating liquid to be 40%, drying the coated paper after primary coating through a first group of hot air drying boxes, sending the coated paper into a second scraper coating device, continuously coating a thermal sublimation transfer coating on the surface of a primary coating, drying through a second group of hot air drying boxes, controlling the solid content of the thermal sublimation transfer coating to be 10%, dispersing 100 parts of water, 0.2 parts of a bactericide and 100 parts of liquid calcium bicarbonate in a high-speed dispersion machine in 1300r/min for 30min, adjusting the rotating speed to 800r/min, adding 30 parts of sodium carboxymethyl cellulose sizing material HC, dispersing for 10min after 0.7 parts of a water repellent agent, preparing a primary coating liquid with the solid content of 50% for primary coating of the digital transfer paper, and improving the water resistance of the digital transfer base paper, the bottom coating device comprises a paper placing frame, an automatic paper receiving and returning device, a first buffer roller and a first traction roller which are sequentially arranged along the direction of paper, wherein the paper outlet end of the first traction roller is simultaneously connected to the bottom coating mechanism, and the paper outlet end of the bottom coating mechanism is connected to first drying equipment; the bottom coating mechanism comprises a bottom coating box, a first feeding roller and a first scraper back roller, wherein a surface coating liquid is prepared by dispersing 550 parts of water, 67 parts of sodium carboxymethyl cellulose sizing material HC and 33 parts of quick-drying starch in a dispersion machine at 800r/min for 30min and dissolving at normal temperature to prepare a 15% surface coating liquid for surface coating of the digital transfer printing paper, the transfer rate and the drying speed of the digital transfer printing paper are improved, the surface coating device comprises a second traction roller, a coating box, a second feeding roller and a second scraper back roller which are sequentially arranged along the paper trend, the paper outlet end of the second scraper back roller is connected to the second drying box, and the paper outlet end of the second drying box is connected to the back adhesive device through a third traction roller. The surface coating mechanism comprises a bottom coating box, a first feeding roller and a first scraper back roller; the transfer paper after passing through the second group of hot air drying devices passes through a group of gum coating devices and then enters a third group of hot air drying box, the solid content of the gum coating liquid is controlled to be 0.2%, and the gum coating liquid is formed by mixing and stirring 100 parts of water, 0.5 part of CMC and 0.15 part of bactericide in a storage barrel; the transfer paper dried by the gum enters a state-adjusting cylinder for treatment, paper temperature adjustment is carried out, paper temperature is balanced, the transfer paper meeting requirements is obtained through a horizontal paper winder after soft calendaring and finishing, the state-adjusting cylinder is composed of a steam drying cylinder and three jacket drying cylinders, the temperature of the steam drying cylinder is 90 ℃, the temperature of the jacket drying cylinders is 25 ℃, and the steam drying cylinder and the jacket drying cylinders are used together for mainly adjusting the paper temperature and improving the smoothness after the coated paper is formed.

Example 2:

crushing bleached softwood pulp and hardwood pulp in an crushed crusher at a ratio of 1:2 into pulp liquid with a concentration of 4%; pulping the crushed raw pulp to separate the wood pulp fibers, controlling the beating degree to be 43-degree SR, and controlling the wet weight of the fibers to be 1.7 g; adding cation modified corn starch into the pulp slurry after pulping treatment, controlling the adding amount of the cation modified corn starch to be 2% of the total mass of the absolute dry pulp, gelatinizing a 6% cation starch solution at 95 ℃, and then controlling the viscosity to be 800mpa.s at 25 ℃ and the pH value to be 5 at 21 ℃; purifying the slurry, drying the slurry in a long net forming vat cold cylinder, and performing soft press polish finishing; sending the manufactured semi-finished transfer paper into a first scraper coating device through an automatic tipping and paper withdrawing device, coating a coating liquid on the surface of base paper, controlling the solid content of the coating liquid to be 45%, drying the coated paper after primary coating through a first group of hot air drying boxes, sending the coated paper into a second scraper coating device, continuously coating a thermal sublimation transfer coating on the surface of the primary coating, drying through a second group of hot air drying boxes, controlling the solid content of the thermal sublimation transfer coating to be 1520%, controlling the solid content of the thermal sublimation transfer coating to be 70% by water, 0.2% by bactericide and 100% by liquid calcium bicarbonate in a high-speed dispersion machine in 1300r/min, adjusting the rotating speed to 800r/min, adding 30 parts by weight of sodium carboxymethyl cellulose sizing material HC, dispersing for 10min after 0.7 parts by weight of water repellent agent, preparing a primary coating liquid with the solid content of 50% for primary coating of the digital transfer paper, and improving the water resistance of the digital transfer base paper, the bottom coating device comprises a paper placing frame, an automatic paper receiving and returning device, a first buffer roller and a first traction roller which are sequentially arranged along the direction of paper, wherein the paper outlet end of the first traction roller is simultaneously connected to the bottom coating mechanism, and the paper outlet end of the bottom coating mechanism is connected to first drying equipment; the bottom coating mechanism comprises a bottom coating box, a first feeding roller and a first scraper back roller, wherein a surface coating liquid is prepared by dispersing 550 parts of water, 67 parts of sodium carboxymethyl cellulose sizing material HC and 33 parts of quick-drying starch in a dispersion machine at 800r/min for 30min and dissolving at normal temperature to prepare a 15% surface coating liquid for surface coating of the digital transfer printing paper, the transfer rate and the drying speed of the digital transfer printing paper are improved, the surface coating device comprises a second traction roller, a coating box, a second feeding roller and a second scraper back roller which are sequentially arranged along the paper trend, the paper outlet end of the second scraper back roller is connected to the second drying box, and the paper outlet end of the second drying box is connected to the back adhesive device through a third traction roller. The surface coating mechanism comprises a bottom coating box, a first feeding roller and a first scraper back roller; the transfer paper after passing through the second group of hot air drying devices passes through a group of gum coating devices and then enters a third group of hot air drying box, the solid content of the gum coating liquid is controlled to be 0.5 percent, and the gum coating liquid is formed by mixing and stirring 100 parts of water, 0.5 part of CMC and 0.15 part of bactericide in a storage barrel; the transfer paper dried by the gum enters a state-adjusting cylinder for treatment, paper temperature adjustment is carried out, paper temperature is balanced, the transfer paper meeting requirements is obtained through a horizontal paper winder after soft calendaring and finishing, the state-adjusting cylinder is composed of a steam drying cylinder and three jacket drying cylinders, the temperature of the steam drying cylinder is 90 ℃, the temperature of the jacket drying cylinders is 25 ℃, and the steam drying cylinder and the jacket drying cylinders are used together for mainly adjusting the paper temperature and improving the smoothness after the coated paper is formed.

Example 3:

crushing bleached softwood pulp and hardwood pulp in an crushed crusher at a ratio of 1:3 into pulp liquid with a concentration of 3%; pulping the crushed raw pulp to separate wood pulp fibers, controlling the pulping degree to be 45 degrees SR, and controlling the wet weight of the fibers to be 2 g; adding cation modified corn starch into the pulp slurry after pulping treatment, controlling the adding amount of the cation modified corn starch to be 2% of the total mass of the absolute dry pulp, gelatinizing a 6% cation starch solution at 95 ℃, and then controlling the viscosity to be 900mpa.s at 25 ℃ and the pH value to be 6 at 21 ℃; purifying the slurry, drying the slurry in a long net forming vat cold cylinder, and performing soft press polish finishing; feeding the manufactured semi-finished transfer paper into a first scraper coating device through an automatic tipping and paper withdrawing device, coating a coating liquid on the surface of base paper, controlling the solid content of the coating liquid to be 40-50%, drying the coated paper subjected to primary coating through a first group of hot air drying boxes, feeding the coated paper into a second scraper coating device, continuously coating a sublimation transfer coating on the surface of a primary coating, drying through a second group of hot air drying boxes, controlling the solid content of the sublimation transfer coating to be 20%, dispersing 100 parts of liquid calcium bicarbonate in a high-speed dispersion machine in 1300r/min for 30min, adjusting the rotating speed to 800r/min, adding 30 parts of sodium carboxymethyl cellulose sizing material HC, and 0.7 part of water repellent agent, dispersing for 10min, preparing the primary coating liquid with the solid content of 50% for the primary coating of the digital transfer paper, and improving the water resistance of the digital transfer base paper, the bottom coating device comprises a paper placing frame, an automatic paper receiving and returning device, a first buffer roller and a first traction roller which are sequentially arranged along the direction of paper, wherein the paper outlet end of the first traction roller is simultaneously connected to the bottom coating mechanism, and the paper outlet end of the bottom coating mechanism is connected to first drying equipment; the bottom coating mechanism comprises a bottom coating box, a first feeding roller and a first scraper back roller, wherein a surface coating liquid is prepared by dispersing 550 parts of water, 67 parts of sodium carboxymethyl cellulose sizing material HC and 33 parts of quick-drying starch in a dispersion machine at 800r/min for 30min and dissolving at normal temperature to prepare a 15% surface coating liquid for surface coating of the digital transfer printing paper, the transfer rate and the drying speed of the digital transfer printing paper are improved, the surface coating device comprises a second traction roller, a coating box, a second feeding roller and a second scraper back roller which are sequentially arranged along the paper trend, the paper outlet end of the second scraper back roller is connected to the second drying box, and the paper outlet end of the second drying box is connected to the back adhesive device through a third traction roller. The surface coating mechanism comprises a bottom coating box, a first feeding roller and a first scraper back roller; the transfer paper after passing through the second group of hot air drying devices passes through a group of gum coating devices and then enters a third group of hot air drying box, the solid content of the gum coating liquid is controlled to be 1%, and the gum coating liquid is formed by mixing and stirring 100 parts of water, 0.5 part of CMC and 0.15 part of bactericide in a storage barrel; the transfer paper dried by the gum enters a state-adjusting cylinder for treatment, paper temperature adjustment is carried out, paper temperature is balanced, the transfer paper meeting requirements is obtained through a horizontal paper winder after soft calendaring and finishing, the state-adjusting cylinder is composed of a steam drying cylinder and three jacket drying cylinders, the temperature of the steam drying cylinder is 90 ℃, the temperature of the jacket drying cylinders is 25 ℃, and the steam drying cylinder and the jacket drying cylinders are used together for mainly adjusting the paper temperature and improving the smoothness after the coated paper is formed.

The physical property detection result of the economical digital thermal sublimation transfer paper prepared by the technical scheme is as follows:

physical index	Unit of	Example 1	Example 2	Example 3
					Quantification of	g/m2	45	47	49
Moisture content	%	5.0	5.3	5.5
					Tear strength	mN	220	223	225
Longitudinal tensile force	N	45	47	49

Water absorption	g/m2	18	21.5	22.5
					Transverse expansion ratio	%	1.3	1.42	1.51
Transfer rate	%	92	96	97
					Drying speed	S		30	35	37

In the embodiment, the transfer paper prepared by the method has the advantages of good evenness, high strength, good dimensional stability, high drying speed in ink-jet printing and high transfer rate, can meet the requirements of the existing transfer paper, and has good market prospect.

Referring to fig. 1-8, the beating device according to the above embodiment includes a first beating cavity 1, a second beating cavity 4, a third beating cavity 25, a first transition cavity 2, a second transition cavity 3, a pulp storage transition cavity 11 and a circulation mechanism 14, wherein a feed inlet 5 is arranged at the top of the first beating cavity 1, the first transition cavity 2 and the second transition cavity 3 are sequentially arranged between the first beating cavity 1 and the second beating cavity 4 from top to bottom, the first transition cavity 2 and the second transition cavity 3 are simultaneously communicated with the first beating cavity 1 and the second beating cavity 4, a first filter plate 6 is fixed at the connection between the first transition cavity 2 and the second transition cavity 3, so that the pulp in the first transition cavity 2 can reach the second transition cavity 3 after being filtered by the first filter plate 6, a first spiral beating head 7 is arranged in the first beating cavity 1, a first rotating motor 8 is fixed on the cavity wall of the first pulping cavity 1, the rear part of a first spiral pulping head 7 is fixed on the output end of the first rotating motor 8 on the first pulping cavity 1, the front part of the first spiral pulping head 7 is sequentially arranged in the first transition cavity 2 and the second pulping cavity 4 in a penetrating way, a second spiral pulping head 9 is arranged below the first spiral pulping head 7, a second rotating motor 10 is fixed on the cavity wall of the second pulping cavity 4, the rear part of the second spiral pulping head 9 is fixed on a second rotating motor 10 on the second pulping cavity 4, the front part of the second spiral pulping head 9 is sequentially arranged in the second transition cavity 3 and the first pulping cavity 1 in a penetrating way, a pulp storage transition cavity 11 is communicated with the lower end of the second pulping cavity 4, and a sieve plate 12 is fixed at the bottom of the second pulping cavity 4, so that the pulp in the second pulping chamber 4 reaches the pulp storage transition chamber 11 after being filtered by the sieve plate 12, meanwhile, the first pulping chamber 1 and the second transition chamber 3 are communicated with the pulp storage transition chamber 11 through the connecting pipe 13, the pulp storage transition chamber 11 and the second transition chamber 3 are also communicated with the circulating mechanism 14, the circulating mechanism 14 comprises a circulating liquid tank 15 with an inclined bottom, a filter screen partition plate 16 is arranged in the circulating liquid tank 15, the circulating liquid tank 15 is divided into an upper layer and a lower layer by the filter screen partition plate 16, a first baffle plate 17 and a second baffle plate 18 are vertically arranged on the upper surface of the filter screen partition plate 16, the height of the first baffle plate 17 is greater than that of the second baffle plate 18, a pressure sensor 19 is arranged at the bottom of a cavity formed between the first baffle plate 17 and the second baffle plate 18, and a first return pipe 20 arranged at the first baffle plate 17 is communicated with the pulp storage transition chamber 11, the second backflow pipe 22 arranged on the filter screen partition plate 16 is communicated with the first pulping chamber 1, the bottom of the circulating liquid tank 15 is fixedly provided with a third backflow pipe 24, the third backflow pipe 24 is arranged at the lower layer of the circulating liquid tank 15 and is communicated with the pulp storage transition chamber 11, the inlet part of the third backflow pipe 24 arranged in the circulating liquid tank 15 is higher than the outlet part of the third backflow pipe 24 arranged on the pulp storage transition chamber 11, the pipeline of the first backflow pipe 20 is provided with a first backflow pump 21, the first backflow pump 21 is fixedly arranged at the bottom of the circulating liquid tank 15, the pipeline of the second backflow pipe 22 is provided with a second backflow pump 23, the second backflow pump 23 is fixedly arranged at the top of the circulating liquid tank 15, the bottom of the pulp storage transition chamber 11 is provided with a third pulping chamber 25, and the pulp storage transition chamber 11 is communicated with the third pulping chamber 25 through a connecting pipe 13, an ultrasonic wave generating device 26 is arranged in the third pulping chamber 25.

The first spiral beating head 7 and the second spiral beating head 9 are arranged in parallel up and down.

And a second filter plate 27 is arranged at the bottom in each of the first pulping chamber 1 and the second transition chamber 3.

The bottom of the sieve plate 12 is fixed with a vibrating motor 28, the bottoms of four corners of the sieve plate 12 are respectively provided with a sliding sleeve 29, the sliding sleeves 29 are fixed on the inner wall of the slurry storage transition cavity 11, the top of the sliding sleeve 29 is inserted with a sliding rod 31 in a sliding manner, the sliding rod 31 is sleeved with a spring 30, the top end of the spring 30 is fixed on the bottom of the sieve plate 12, and the bottom end of the spring 30 is fixed on the top end of the sliding sleeve 29.

A support table 32 is arranged below the first pulping chamber 1 and the circulating liquid tank 15, a support rod 33 is fixed on the top of the support table 32, and the first pulping chamber 1 and the circulating liquid tank 15 are fixed on the support table 32 through the support rod 33.

The working principle is as follows: after the pulp enters from the charging opening, the first spiral pulping head 7 twists and mixes the pulp on one hand, on the other hand, the pulp can be spirally transferred to the second pulping chamber 4, then the second spiral pulping head 9 transfers and twists and mixes the pulp in the same action, and can respectively realize the back movement of the pulp through the positive and negative rotation of the first rotating motor 8 and the second rotating motor 10, so as to improve the pulping degree, meanwhile, the refined pulp can reach the pulp storage transition chamber 11 through the filter devices of the pulping chambers flowing through, a vibration motor 28 is arranged between the pulp storage transition chamber 11 and the second pulping chamber 4, so as to vibrate the sieve plate 12, so as to improve the screening efficiency, and then the refined pulp enters the third pulping chamber 25, the third pulping chamber 25 adopts an ultrasonic generator 26 to carry out secondary pulping on the pulp, meanwhile, when the requirement on the pulping degree is high, or when the pulp in the pulp storage transition chamber is detected to be too much and can not enter the third pulping chamber 25, the secondary mechanical pulping is carried out after the secondary recovery of the serous fluid by the circulating mechanism 14, the serous fluid is driven by a motor, the serous fluid is sucked into the circulating liquid box 15 through the first return pipe 20, along with the gradual accumulation of the sucked serous fluid, the upper surface of the filter screen clapboard 16 in the circulating liquid box 15 is vertically provided with a first baffle 17 and a second baffle 18 for avoiding the overlarge impact force of the serous fluid sucked by the first return pipe 20 from influencing the sedimentation of the serous fluid, the serous fluid overflows into a cavity between the first baffle 17 and the second baffle 18 from the first baffle 17, through the sedimentation, the fine and smooth part of the upper layer tissue of the serous fluid in the cavity overflows to the other side through the second baffle 18, the serous fluid is filtered to the lower layer of the circulating liquid box 15 through the filter screen clapboard 16, part of the lower layer of the serous fluid directly passes through the filter screen clapboard 16 to the lower layer of the circulating liquid box 15, the inlet part of the third return pipe 24 is higher than the outlet part of the third return pipe 24, therefore, the fine and smooth tissue pulp flows back to the pulp storage transition cavity 11 through the third return pipe 24 under the action of gravity, meanwhile, the coarse tissue pulp is gradually stacked in the cavity, when the pulp reaches a certain amount, the pressure sensor 19 arranged in the cavity is connected with the second return pump 23 for controlling the second return pipe 22 to work, the second return pump 23 drives the second return pipe 22 to suck the coarse pulp stacked in the cavity back to the first pulping cavity 1, so that the secondary pulping process is realized, the fiber is subjected to friction and shearing action by simple mechanical pulping, the outer layer parts of the primary wall and the secondary wall of the fiber are broken, the fine fiber in the middle layer absorbs water to swell and is devillicate to brooming, but the mechanical pulping degree is improved quickly, and the fiber is cut and broken seriously, on the basis of mechanical pulping, namely on the premise that the fiber is broken very little, the ultrasonic pulping is used for further swelling, devillicate and refining, the method not only maintains the fiber length, but also effectively promotes swelling and devillicating fibrillation, shows the best comprehensive performance of the fibers after pulping, obtains better physical properties of paper, and simultaneously has the highest zero-distance tensile strength and the highest tensile strength during pulping.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A preparation method of saving-type digital thermal sublimation transfer paper is characterized by comprising the following steps:

and 7, post-treatment: the transfer printing paper after the gum drying enters a state-adjusting cylinder for treatment, the paper temperature is adjusted and balanced, and the transfer printing paper which meets the requirements is obtained through a horizontal paper winder after soft press polishing and finishing;

the primer coating liquid in the step 5 comprises, by mass, 70 parts of water, 0.2 part of a bactericide, 100 parts of liquid triple superphosphate, 30 parts of sodium carboxymethyl cellulose sizing material HC and 0.7 part of a water repellent agent, and the surface coating liquid comprises, by mass, 550 parts of water, 67 parts of sodium carboxymethyl cellulose sizing material HC and 33 parts of quick-drying starch;

the gum solution for gum treatment in the step 6 comprises 100 parts by mass of water, 0.5 part by mass of CMC and 0.15 part by mass of a bactericide;

a beating device for implementing the preparation method of the saving-type digital thermal sublimation transfer paper comprises a first beating cavity (1), a second beating cavity (4), a third beating cavity (25), a first transition cavity (2), a second transition cavity (3), a pulp storage transition cavity (11) and a circulating mechanism (14), wherein a feed opening (5) is formed in the top of the first beating cavity (1), the first transition cavity (2) and the second transition cavity (3) are sequentially arranged between the first beating cavity (1) and the second beating cavity (4) from top to bottom, the first transition cavity (2) and the second transition cavity (3) are simultaneously communicated with the first beating cavity (1) and the second beating cavity (4), and a first filter plate (6) is fixed at the joint of the first transition cavity (2) and the second transition cavity (3), so that pulp in the first transition cavity (2) can reach a filter plate (6) after being filtered by the first filter plate (6) In the second transition cavity (3), a first spiral beating head (7) is arranged in the first beating cavity (1), a first rotating motor (8) is fixed on the cavity wall of the first beating cavity (1), the rear part of the first spiral beating head (7) is fixed on the output end of the first rotating motor (8) on the first beating cavity (1), the front part of the first spiral beating head (7) is sequentially arranged in the first transition cavity (2) and the second beating cavity (4) in a penetrating manner, a second spiral beating head (9) is arranged below the first spiral beating head (7), a second rotating motor (10) is fixed on the cavity wall of the second beating cavity (4), the rear part of the second spiral beating head (9) is fixed on the second rotating motor (10) on the second beating cavity (4), and the front part of the second spiral beating head (9) is sequentially arranged in the second transition cavity (3) and the second beating cavity in a penetrating manner (1) In, second beating chamber (4) lower extreme UNICOM have store up thick liquid transition chamber (11), and the bottom of second beating chamber (4) be fixed with sieve (12), make thick liquid in second beating chamber (4) the sieve (12) filter the back and reach store up thick liquid transition chamber (11) in, simultaneously first beating chamber (1) with second transition chamber (3) all through connecting pipe (13) with store up thick liquid transition chamber (11) UNICOM, store up thick liquid transition chamber (11) and second transition chamber (3) still UNICOM outward have circulation mechanism (14), circulation mechanism (14) including bottom be inclined plane circulation liquid case (15), be provided with filter screen baffle (16) in circulation liquid case (15), filter screen baffle (16) will circulation liquid case (15) fall into upper strata and lower floor, filter screen baffle (16) upper surface perpendicular is provided with first baffle (17) and second baffle (18), first baffle (17) highly is greater than second baffle (18), first baffle (17) with the cavity bottom that forms between second baffle (18) is provided with pressure sensor (19), first return pipe (20) that first baffle (17) department set up with store up thick liquid transition chamber (11) UNICOM, second return pipe (22) that set up on filter screen baffle (16) with first pulping chamber (1) UNICOM, the bottom of circulating liquid case (15) is fixed with third return pipe (24), third return pipe (24) set up the lower floor of circulating liquid case (15), and with store up thick liquid transition chamber (11) UNICOM, set up in circulating liquid case (15) third return pipe (24) are imported and are higher than setting up and are in store up the export department of thick liquid transition chamber (24) on store up thick liquid transition chamber (11) The utility model discloses a mortar storage tank, be provided with first backflow pump (21) on the pipeline of first backflow pipe (20), and first backflow pump (21) fixed mounting is in the bottom of circulating liquid case (15), be provided with second backflow pump (23) on the pipeline of second backflow pipe (22), and second backflow pump (23) fixed mounting is at the top of circulating liquid case (15), the bottom of storing up thick liquid transition chamber (11) is equipped with third beating chamber (25), and stores up thick liquid transition chamber (11) and third beating chamber (25) and pass through connecting pipe (13) UNICOM, be provided with ultrasonic wave generating device (26) in third beating chamber (25).

2. A refining apparatus for carrying out the method according to claim 1, characterized in that the first helical refining head (7) and the second helical refining head (9) are arranged in parallel above and below.

3. Beating device according to claim 2, characterised in that the inner bottom of both the first (1) and the second (3) transition chamber is provided with a second filter plate (27).

4. The pulping apparatus according to claim 3, characterized in that a vibrating motor (28) is fixed at the bottom of the screen plate (12), a sliding sleeve (29) is respectively arranged at the bottom of each corner of the screen plate (12), the sliding sleeves (29) are fixed on the inner wall of the pulp storage transition chamber (11), a sliding rod (31) is slidably inserted into the top of each sliding sleeve (29), a spring (30) is sleeved outside each sliding rod (31), the top end of each spring (30) is fixed at the bottom of the screen plate (12), and the bottom end of each spring (30) is fixed at the top end of each sliding sleeve (29).

5. Beating device according to claim 4, characterised in that a support table (32) is arranged below the first beating chamber (1) and the circulation tank (15), a support bar (33) is fixed on the top of the support table (32), and the first beating chamber (1) and the circulation tank (15) are fixed on the support table (32) through the support bar (33).