CN117844305B - White ink for digital printing of DTF and production equipment thereof - Google Patents
White ink for digital printing of DTF and production equipment thereof Download PDFInfo
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- CN117844305B CN117844305B CN202410268111.4A CN202410268111A CN117844305B CN 117844305 B CN117844305 B CN 117844305B CN 202410268111 A CN202410268111 A CN 202410268111A CN 117844305 B CN117844305 B CN 117844305B
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- 238000007639 printing Methods 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 43
- 238000000227 grinding Methods 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 15
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 15
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 235000010215 titanium dioxide Nutrition 0.000 claims description 9
- 229920003009 polyurethane dispersion Polymers 0.000 claims description 7
- 239000003906 humectant Substances 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims 2
- 239000007787 solid Substances 0.000 abstract description 17
- 238000004132 cross linking Methods 0.000 abstract description 14
- 239000012463 white pigment Substances 0.000 abstract description 12
- 238000005406 washing Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 8
- 239000011347 resin Substances 0.000 abstract description 5
- 229920005989 resin Polymers 0.000 abstract description 5
- 238000010023 transfer printing Methods 0.000 abstract description 4
- 238000005054 agglomeration Methods 0.000 abstract description 3
- 230000002776 aggregation Effects 0.000 abstract description 3
- 238000005189 flocculation Methods 0.000 abstract description 3
- 230000016615 flocculation Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 239000000976 ink Substances 0.000 description 77
- 230000008676 import Effects 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000011068 loading method Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 239000004831 Hot glue Substances 0.000 description 3
- 238000010409 ironing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
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- 229920000742 Cotton Polymers 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
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- 238000010422 painting Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
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- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention relates to white ink for DTF digital printing and production equipment thereof, which belong to the technical field of grinding equipment, wherein the white ink has relatively simple composition, lower solid content and relatively stable aqueous DTF white pigment ink system under the condition of normal temperature liquid state, and can not generate the phenomena of particle agglomeration, flocculation, component crosslinking or layering. When the wet ink film is baked at a high temperature above 90 ℃, the NCO group of the closed aliphatic polyisocyanate curing agent in the aqueous DTF white pigment ink system is unsealed, and the aqueous DTF white pigment ink is crosslinked and cured by itself and simultaneously undergoes a crosslinking reaction with the resin in the lower CMYK four-color ink film layer, so that the color-white double-layer ink film forms a three-dimensional network crosslinked structure. The three-dimensional network crosslinking structure improves the physical tensile strength of the printed pattern layer, simultaneously combines the CMYK four-color printed pattern layer and the white covering layer into a layer through two-in-one crosslinking, greatly improves the washing resistance and the wear resistance of the color layer after the transfer printing, and uniformly stirs the equipment.
Description
Technical Field
The invention belongs to the technical field of grinding equipment, and particularly relates to DTF digital printing white ink and production equipment thereof.
Background
At present, a white ink hot-dip painting is to spray-paint aqueous CMYK four-color pigment ink into patterns on DTF (Direct to Film) printing films by a digital printer, accurately print a white ink covering layer on the patterns printed by the four-color ink synchronously, and then cover TPU hot-melt adhesive powder on the white ink covering layer to realize the hot-melt adhesion of the printed patterns; after finishing the powder coating, removing TPU hot melt adhesive powder outside the white ink film layer area through a powder shaking process, and then, baking in an oven to dry the pattern, and recrystallizing the TPU hot melt adhesive powder to form an adhesive film, thereby being convenient for winding and subsequent application operation. The white ink is used in a relatively large amount, the film is required to have high covering capacity after film formation, and the printing pattern layer has excellent flexibility, so that the printing pattern layer is ensured to have good physical strength in subsequent transfer printing operation and application test. At present, the content of the resin in the aqueous white pigment ink is relatively low, the film has good covering power after film formation, but the flexibility is poor, so that the washing resistance is extremely poor after the color layer pattern is transferred onto the textile fabric. The application range of the white ink pyrograph film is greatly limited, and the quality grade of the product is also reduced.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the invention is to provide the DTF digital printing white ink and the production equipment thereof, which can prepare the white ink with a relatively stable ink system.
In order to solve the technical problems, the invention adopts the following technical scheme: the DTF digital printing white ink comprises an aqueous polyurethane dispersion, aqueous titanium white slurry, a humectant, a surfactant, a closed polyisocyanate curing agent and water.
Further, the aqueous polyurethane dispersion is a two-stage dispersion.
Further, the fineness of the aqueous titanium dioxide slurry is 100nm-200 nm.
Further, the blocked polyisocyanate curing agent is aliphatic, and the deblocking temperature is 90 ℃.
The production equipment for digital printing white ink of DTF comprises a sand mill body, the sand mill body includes frame, drive assembly and dull polish section of thick bamboo, the dull polish section of thick bamboo is installed in the frame, be provided with the axis of rotation in the dull polish section of thick bamboo, the axis of rotation global is provided with multirow stirring post, every row stirring post quantity is a plurality of and the interval setting, the stirring post has sliding channel, stirring post global has bar import and bar export, it is corresponding around bar import and the bar export, bar import horizontal plane projection covers bar export horizontal plane projection, be provided with dead weight striking pearl in the sliding channel, drive assembly is used for driving the dull polish section of thick bamboo and rotates.
Further, the inner side wall of the grinding cylinder is provided with a plurality of rows of fixing plates, the number of each row of fixing plates is a plurality of fixing plates and the fixing plates are arranged at intervals, and the fixing plates and the stirring columns are staggered.
Further, a chamfer is formed on the inner side of the strip-shaped outlet.
Further, the drive assembly includes box and driving motor, the box is located the frame, driving motor is located the box, the box side is formed with the loading tray, the one end of axis of rotation passes the loading tray and stretches into in the box and be connected with the driving motor output.
Further, have annular material way in the loading tray, the outward one side of loading tray has the discharge gate that three annular intervals set up, discharge gate opening part has the bulge loop, the dull polish section of thick bamboo terminal surface has three mating holes, the bulge loop stretches into mating holes and sealing connection.
Compared with the prior art, the invention has the following beneficial effects:
The white ink provided by the invention has relatively simple composition and low solid content, and is prepared by adopting a horizontal sand mill sand milling process. Under the condition of normal temperature liquid state, the water-based DTF white pigment ink system is stable, and the phenomena of particle agglomeration, flocculation, component crosslinking or layering do not occur. When the wet ink film is baked at a high temperature above 90 ℃, the NCO group of the closed aliphatic polyisocyanate curing agent in the aqueous DTF white pigment ink system is unsealed, and the aqueous DTF white pigment ink is crosslinked and cured by itself and simultaneously undergoes a crosslinking reaction with the resin in the lower CMYK four-color ink film layer, so that the color-white double-layer ink film forms a three-dimensional network crosslinked structure. The three-dimensional network crosslinking structure improves the physical tensile strength of the printed pattern layer, simultaneously combines the CMYK four-color printed pattern layer and the white covering layer into a layer through two-in-one crosslinking, and greatly improves the washing resistance and the wear resistance of the color layer after the transfer printing. The water-based DTF white pigment ink expands the application range and application of the white ink pyrograph, and brings higher product added value to terminal clients; the white ink is produced by adopting production equipment for printing the white ink by adopting the DTF digital code, when stirring is carried out at first, the rotation of the rotating shaft and the stirring column can stir slurry, the solid content in the white ink is reduced by stirring, when the solid volume in the liquid is larger (smaller than the strip-shaped inlet), and when the stirring column rotates, the solid enters the strip-shaped inlet and cannot be removed from the strip-shaped outlet due to the larger volume, and when the stirring paddle moves from the upper end to the lower end, the dead weight impact bead in the stirring column can move, and the solid (agglomerate) in the inner cavity of the stirring column is crushed and impacted, so that the solid (agglomerate) is crushed and dissolved.
Drawings
FIG. 1 is a schematic perspective view of a production facility for digital printing of white ink by DTF in accordance with the present invention;
FIG. 2 is a schematic cross-sectional view of the sanding of the present invention;
FIG. 3 is a schematic cross-sectional view of another direction of sanding in accordance with the present invention;
FIG. 4 is a schematic perspective view of a stirring column according to the present invention;
FIG. 5 is a schematic diagram showing the front view of the stirring column in the present invention.
The marks in the figure: 1. a frame; 2. a case; 21. a carrying tray; 211. an annular material channel; 312. a convex ring; 3. grinding cylinder; 31. a rotating shaft; 32. stirring the column; 321. a strip inlet; 322. a strip-shaped outlet; 3221. chamfering; 323. the dead weight impacts the bead; 33. a fixing plate; 34. round bench; 341. and (5) filtering the holes.
Detailed Description
In order to make the above features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1-5, the present embodiment provides a DTF digital printing white ink, which comprises an aqueous polyurethane dispersion, an aqueous titanium white slurry, a humectant, a surfactant, a blocked polyisocyanate curing agent and water.
The aqueous polyurethane dispersion is a two-stage dispersion, and the aqueous polyurethane dispersion accounts for 20% -25%. The fineness of the aqueous titanium dioxide slurry is 100nm-200 nm, and the aqueous titanium dioxide slurry accounts for 10% -30%. The humectant and the surfactant account for 1-5 percent. The blocked polyisocyanate curing agent is aliphatic, the deblocking temperature is 90 ℃, the blocked polyisocyanate curing agent accounts for 1% -5%, and the balance is water; the embodiment provides DTF digital printing white ink, which consists of 25% of aqueous polyurethane dispersoid, 25% of aqueous titanium white slurry, 2% of humectant, 3% of surfactant, 3% of closed polyisocyanate curing agent and the balance of water, wherein the ratio provided by the scheme is that the ratio of the closed polyisocyanate curing agent is 1% -5%, the closed aliphatic polyisocyanate curing agent is baked at a high temperature above 90 ℃, the NCO group deblocking efficiency of the closed aliphatic polyisocyanate curing agent is faster, and the effect of crosslinking reaction with resin in the lower CMYK four-color ink film layer is better when the self crosslinking curing is carried out.
The white ink provided by the invention has relatively simple composition and low solid content, and is prepared by adopting a horizontal sand mill sand milling process. Under the condition of normal temperature liquid state, the water-based DTF white pigment ink system is stable, and the phenomena of particle agglomeration, flocculation, component crosslinking or layering do not occur. When the wet ink film is baked at a high temperature above 90 ℃, the NCO group of the closed aliphatic polyisocyanate curing agent in the aqueous DTF white pigment ink system is unsealed, and the aqueous DTF white pigment ink is crosslinked and cured by itself and simultaneously undergoes a crosslinking reaction with the resin in the lower CMYK four-color ink film layer, so that the color-white double-layer ink film forms a three-dimensional network crosslinked structure. The three-dimensional network crosslinking structure improves the physical tensile strength of the printed pattern layer, simultaneously combines the CMYK four-color printed pattern layer and the white covering layer into a layer through two-in-one crosslinking, and greatly improves the washing resistance and the wear resistance of the color layer after the transfer printing. The water-based DTF white pigment ink expands the application range and application of the white ink pyrograph, and brings higher product added value to terminal clients.
The following is a comparison of the present DTF digital printing white ink with commercially available white inks:
and (3) comparing physical and chemical parameters of the ink:
Standard required viscosity: 4.1mPa.s (25 ℃ C.+ -. 1) -4.8mPa.s (25 ℃ C.+ -. 1), conductivity less than 0.8mS/cm, pH 7-10 and surface tension in the range of 22mN/m-28mN/m.
White ink a: the number of samples is 1kg, the standard requires viscosity: 4.43mPa.s (25 ℃ C.+ -. 1), a conductivity of 0.4mS/cm, a pH of 7.97 and a surface tension in the range of 24.5mN/m.
White ink B: the number of samples is 1kg, the standard requires viscosity: 4.28mPa.s (25 ℃ C.+ -. 1), a conductivity of 0.35mS/cm, a pH of 8.26 and a surface tension in the range of 24.5mN/m.
White ink C: the number of samples is 1kg, the standard requires viscosity: 4.38mPa.s (25 ℃ C.+ -. 1), a conductivity of 0.44mS/cm, a pH of 8.11 and a surface tension in the range of 24.5mN/m.
White ink D: the number of samples is 1kg, the standard requires viscosity: 4.42mPa.s (25 ℃ C.+ -. 1), a conductivity of 0.4mS/cm, a pH of 8.48 and a surface tension in the range of 24.7mN/m.
DTF digital printing white ink: the number of samples is 1kg, the standard requires viscosity: 5mPa.s (25 ℃ C.+ -. 1), conductivity 0.36mS/cm, pH 8.7, surface tension value range 24mN/m.
By the comparison, we can know that the DTF digital printing white ink of the scheme: the viscosity is higher while each parameter meets the standard.
And (3) comparing the printing performance of the ink machine: the device model is XKD-3200-4 head machine-Hansen board, the machine state is ink-jet, the printing is set to 6PASS, the speed is high, the two-way, 30% feathering is realized, and the color block size is 600 x 1000mm.
Ink loading and fluency testing, testing standard: the performance of the machine: after the ink is completely replaced, the state page of the nozzle is observed, the number of front and rear broken holes is less than or equal to 1, and the process treatment is less than or equal to 1 time. Fluent stability: and printing 100% color blocks by using an XKD 3200 4 head machine 6PASS, wherein the number of broken holes before and after a nozzle state page is less than or equal to 5 holes.
White ink a: the machine state is successful, the 10M treatment condition is normal, the 20M treatment condition is 1 hole cut-off, the 30M treatment condition is 1 hole cut-off, the temperature is 28 ℃ and the humidity is 68%.
White ink B: the machine is successful, the 10M treatment condition is normal, the 20M treatment condition is normal, the 30M treatment condition is 3 holes cut off, the temperature is 28 ℃ and the humidity is 68%.
White ink C: the machine state is successful, the 10M treatment condition is normal, the 20M treatment condition is 1 hole cut-off, the 30M treatment condition is 2 hole cut-off, the temperature is 28 ℃ and the humidity is 68%.
White ink D: the machine is successful, the 10M treatment condition is 1 hole break, the 20M treatment condition is 1 hole break, the 30M treatment condition is 1 hole break, the temperature is 28 ℃ and the humidity is 68%.
DTF digital printing white ink: the machine is successful, the 10M processing condition is normal, the 20M processing condition is normal, the 30M processing condition is normal, the temperature is 28 ℃ and the humidity is 68%.
Obviously, in the test, the printing smoothness of the DTF digital printing white ink in the scheme is better than that of other four types of white ink.
Testing the performance of a printed transfer sample:
The printing method is that the machine model and the setting are the same, the special white ink hot-drawn film is continuously printed with the single-color blocks by ink jet after the color ink is firstly printed, and then the printing is finished according to the steps of powdering, powder shaking, drying, rolling and the like; the color ink adopts the same color ink (the red ink watermark is used for printing color blocks this time), the white ink is controlled to be used as a variable (the white ink quantity is set to 100%), and other conditions are consistent.
The transfer ironing condition is that the prepared sample is transferred and ironed on standard cotton cloth according to the transfer ironing condition of 150 ℃, 15S and 0.3MPa, the bottom film is torn off, and the sample is placed at room temperature for 24 hours and then tested.
White ink a: the washing performance (washing at normal temperature, 35 min/time, washing for 10 times) is slight fading, the evaluation of the rubbing color fastness (dry and wet rubbing resistance of the color block after the transfer ironing according to GB/T3920-2008 test, and the evaluation of the contrast gray sample card is 1-5) is 5, and the wet grade is 4.
White ink B: the water wash performance was a clear fade, the crocking fastness was rated dry grade 4 and wet grade 4.
White ink C: the water washing performance is that the color lump appears white, the rubbing color fastness is evaluated as dry grade 4 and wet grade 4.
White ink D: the water wash performance was severely fade, the crocking fastness was rated dry grade 4 and wet grade 3.
DTF digital printing white ink: the water wash performance was no fading, the crocking fastness was rated dry grade 5, and the wet grade 5.
The washing resistance and the dry and wet friction resistance of the DTF digital printing white ink of the scheme obtained by the method are superior to those of other four types of white ink.
The invention also provides production equipment for the DTF digital printing white ink, which comprises a sand mill body, wherein the sand mill body comprises a frame 1, a driving assembly and a sand cylinder 3.
The drive assembly is used for driving the grinding drum 3 to rotate, and the drive assembly includes box 2 and driving motor, and box 2 is located frame 1, and driving motor is located box 2, and grinding drum 3 installs in frame 1, is provided with axis of rotation 31 in the grinding drum 3, specifically, box 2 side is formed with bears the weight of the dish 21, and the one end of axis of rotation 31 passes bears the weight of the dish 21 and stretches into in the box 2 and be connected with the driving motor output, sets up the sealing member between axis of rotation 31 and the bearing the weight of the dish 21 and carries out sealing connection.
The axis of rotation 31 global stirring post 32 that is provided with multirow annular interval and sets up, every row stirring post 32 quantity is a plurality of and the interval setting, stirring post 32 quantity is three rows in this scheme, every row quantity is six, stirring post 32 has sliding channel, stirring post 32 global has bar import 321 and bar export 322, bar import 321 and bar export 322 front and back are corresponding, bar import 321 horizontal plane projection covers bar export 322 horizontal plane projection, bar export 322 is formed with chamfer 3221 in one side of being close to, be provided with dead weight striking pearl 323 in the sliding channel, dead weight striking pearl 323 adopts stainless steel column or other the great grinding pearl of quality of using on the sand mill. The inner side wall of the grinding cylinder 3 is provided with three rows of fixing plates 33 which are annularly arranged at intervals, the number of each row of fixing plates 33 is six, the fixing plates 33 are arranged at intervals, and the fixing plates 33 and the stirring columns 32 are staggered.
When stirring is started, the rotation of the rotating shaft 31 and the stirring column 32 can stir the slurry, the solid content in the white ink is reduced through stirring, when the solid volume in the liquid is larger than that of the strip-shaped inlet 321, the solid can move anticlockwise in the liquid under stirring of the stirring column 32, can be broken due to the fact that the solid is impacted to the stirring column 32 or the stirring column 33, can be directly dissolved after breaking or become smaller solid, the smaller solid (smaller than that of the strip-shaped inlet 321 and larger than that of the strip-shaped outlet 322) is directly dissolved after breaking, when the stirring column 32 rotates, the solid enters the strip-shaped inlet 321 and cannot be removed from the strip-shaped outlet 322 due to the fact that the volume is larger, when the stirring paddle moves from the upper end to the lower end, the dead weight impact bead 323 in the stirring column 32 is rolled to impact the solid (agglomerate) in the inner cavity of the stirring column 32, so that the solid is broken and dissolved.
Preferably, the upper surface of the bearing plate 21 is provided with a feeding pipeline, the feeding pipeline is communicated with the annular material channel 211, the bearing plate 21 is internally provided with the annular material channel 211, the outward side of the bearing plate 21 is provided with three discharge holes arranged at intervals, the opening of each discharge hole is provided with a convex ring 312, the end face of the grinding cylinder 3 is provided with three matching holes, the convex rings 312 extend into the matching holes and are in sealing connection, the three matching holes are respectively arranged on one side of the three fixing plates 33, the three rows of fixing plates 33 respectively divide the inner part of the grinding cylinder 3 into three areas, and the three matching holes respectively feed liquid to the three areas, so that the stirring efficiency can be improved. The inner chamber of grinding section of thick bamboo 3 still is provided with round platform 34 outwards one end, and round platform 34 is hollow type, and the other end of axis of rotation 31 rotates the surface of connecting at round platform 34, and round platform 34's global filtration hole 341 that has, filtration hole 341 carry out last filtration to the feed liquid that the stirring was accomplished in the grinding section of thick bamboo 3, and grinding section of thick bamboo 3 terminal surface has the discharge gate, and the discharge gate is connected with the discharging pipeline.
While the basic principles and main features of the invention and advantages of the invention have been shown and described, it will be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, which are described in the foregoing description merely illustrate the principles of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents.
Claims (4)
- Production equipment of white ink for digital printing of DTF, which is characterized in that: the production equipment of the DTF digital printing white ink is used for producing the DTF digital printing white ink, and the DTF digital printing white ink comprises aqueous polyurethane dispersoid, aqueous titanium white slurry, humectant, surfactant, closed polyisocyanate curing agent and water; the blocked polyisocyanate curing agent is aliphatic, the deblocking temperature is 90 ℃, the aqueous polyurethane dispersion accounts for 20% -25%, the aqueous titanium white slurry accounts for 10% -30%, the humectant and the surfactant account for 1% -5%, and the blocked polyisocyanate curing agent accounts for 1% -5%; the aqueous polyurethane dispersion is a two-stage dispersion; the fineness of the aqueous titanium dioxide slurry is 100nm-200 nm;The DTF digital printing white ink production equipment comprises a sand mill body, wherein the sand mill body comprises a frame, a driving component and a sand grinding cylinder, the sand grinding cylinder is arranged on the frame, a rotating shaft is arranged in the sand grinding cylinder, a plurality of rows of stirring columns are arranged on the periphery of the rotating shaft, the number of each row of stirring columns is multiple and are arranged at intervals, the stirring columns are provided with sliding channels, the periphery of each stirring column is provided with a strip-shaped inlet and a strip-shaped outlet, the strip-shaped inlets and the strip-shaped outlets are corresponding to each other in front-back, the strip-shaped inlet horizontal plane projection covers the strip-shaped outlet horizontal plane projection, dead weight impact beads are arranged in the sliding channels, and the driving component is used for driving the sand grinding cylinder to rotate; the utility model discloses a sand grinding drum, including the barrel, the barrel is equipped with the stirring post, have the multirow fixed plate on the barrel inside wall of dull polish, every row fixed plate quantity is a plurality of and the interval setting, the fixed plate intersects the setting in a wrong way with the stirring post.
- 2. The production apparatus for DTF digital printing white ink as recited in claim 1, wherein: and a chamfer is formed on one side of the strip-shaped outlet close to the inner side.
- 3. The production apparatus for DTF digital printing white ink as recited in claim 1, wherein: the driving assembly comprises a box body and a driving motor, the box body is located on the frame, the driving motor is located in the box body, a bearing disc is formed on the side face of the box body, and one end of the rotating shaft penetrates through the bearing disc, stretches into the box body and is connected with the output end of the driving motor.
- 4. A production apparatus for DTF digital printing white ink as claimed in claim 3, wherein: the utility model discloses a polishing device, including bearing disc, sand cylinder, ring-shaped material way has in the bearing disc, the bearing disc outwards one side has the discharge gate that three annular intervals set up, discharge gate opening part has the bulge loop, the end face of the polishing section of thick bamboo has three mating holes, the bulge loop stretches into mating holes and sealing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410268111.4A CN117844305B (en) | 2024-03-09 | 2024-03-09 | White ink for digital printing of DTF and production equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410268111.4A CN117844305B (en) | 2024-03-09 | 2024-03-09 | White ink for digital printing of DTF and production equipment thereof |
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| CN117844305A CN117844305A (en) | 2024-04-09 |
| CN117844305B true CN117844305B (en) | 2024-06-11 |
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| CN113930983A (en) * | 2021-11-22 | 2022-01-14 | 珠海纳思达企业管理有限公司 | Digital pyrograph ink and preparation method thereof |
| CN115612342A (en) * | 2022-10-14 | 2023-01-17 | 深圳市墨库图文技术有限公司 | Ink, preparation method and application thereof |
| CN117065870A (en) * | 2023-09-11 | 2023-11-17 | 南京双善节能科技有限公司 | Sand mill is used in environmental protection coating production |
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| JP5463065B2 (en) * | 2009-04-22 | 2014-04-09 | アシザワ・ファインテック株式会社 | Media stirring mill |
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