CN218619654U - Dye vat and filter cartridge suitable for cheese dyeing - Google Patents
Dye vat and filter cartridge suitable for cheese dyeing Download PDFInfo
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- CN218619654U CN218619654U CN202223124478.4U CN202223124478U CN218619654U CN 218619654 U CN218619654 U CN 218619654U CN 202223124478 U CN202223124478 U CN 202223124478U CN 218619654 U CN218619654 U CN 218619654U
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- 235000013351 cheese Nutrition 0.000 title claims abstract description 94
- 238000004043 dyeing Methods 0.000 title claims abstract description 55
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- 239000011148 porous material Substances 0.000 claims description 8
- 229910052755 nonmetal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 5
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- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 238000009970 yarn dyeing Methods 0.000 abstract description 4
- 239000000975 dye Substances 0.000 description 71
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- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
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- 239000013618 particulate matter Substances 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Filtering Materials (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The utility model relates to a yarn dyeing field especially relates to a dye vat and filter cartridge core suitable for cheese dyeing. This dye vat includes: a dye vat body; the first cheese yarn is positioned in the cylinder body of the dye vat and comprises a filter cylinder core and yarn wound on the filter cylinder core; the filter cartridge includes a tubular body and a screen attached to the tubular body; the port of the first end of the filter cartridge is open, and the port of the second end of the filter cartridge is closed; the tubular main body is provided with a plurality of holes; a gap allowing dye liquor to flow is formed between the first cheese and the inner wall of the dye vat body; a circulating pump communicating with the port of the first end through a dye liquor outlet and communicating with the gap through a dye liquor inlet; under the drive of the circulating pump, dye liquor flows through the dye liquor outlet, the first port, the filter drum core of the first cone yarn, the yarn of the first cone yarn, the gap and the dye liquor inlet in sequence to complete dye liquor circulation.
Description
The present application claims priority of chinese patent application entitled "a filter cartridge suitable for cheese dyeing" filed by the chinese intellectual property office of china at 14/1/2022 under the application number 2022200985982, which is incorporated herein by reference in its entirety.
Technical Field
The utility model relates to a yarn dyeing field especially relates to a dye vat and filter cartridge core suitable for cheese dyeing.
Background
At present, in the printing and dyeing industry, the method for dyeing the yarns of real silk, imitated silk, cotton yarn, polyester yarn, wool yarn and the like is to wind the yarns on a bobbin core to form cheese, holes are uniformly processed on the bobbin core, the cheese is put into a creel, and then the creel is put into a dye vat for dyeing. When the dyeing machine works, dye liquor enters the yarn roll on the drum core through the hole on the drum core, so that the yarn is dyed.
At present, in the dyeing process of terylene or other materials, because dyes or auxiliaries are not uniformly dissolved during material melting, defects or colored defects are caused by direct contact with yarns in the dyeing process; oligomers produced during the dyeing of polyester can be continuously accumulated in the yarn, which causes defects or color defects and influences subsequent weaving.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to filter out the dyestuff or auxiliary agent and when changing the material not evenly dissolve the particulate matter and lead to the direct contact yarn of dyeing in-process to lead to the oligomer that fault or look flower and dyeing in-process produced and reduce the gathering in the yarn.
The utility model provides a technical scheme that its technical problem adopted is:
in a first aspect, there is provided a dye vat suitable for cheese dyeing comprising: a dye vat body; the first cheese yarn is positioned in the cylinder body of the dye vat and comprises a filter cylinder core and yarn wound on the filter cylinder core; the filter cartridge includes a tubular body and a screen attached to the tubular body; the port of the first end of the filter cylinder core is open, and the port of the second end of the filter cylinder core is closed; the tubular main body is provided with a plurality of holes; a gap allowing dye liquor to flow is formed between the first cheese and the inner wall of the dye vat body; a circulating pump communicating with the port of the first end through a dye liquor outlet and communicating with the gap through a dye liquor inlet; under the drive of the circulating pump, dye liquor flows through the dye liquor outlet, the first port, the filter drum core of the first bobbin yarn, the yarn of the first bobbin yarn, the gap and the dye liquor inlet in sequence to complete dye liquor circulation.
In one embodiment, the dye vat further comprises a dye liquor diversion pipeline positioned in the dye vat cylinder; the diameter of the dye liquor guide pipeline is larger than that of the first cheese, the first cheese is located in the dye liquor guide pipeline, a port of one end, close to the second end, of the dye liquor guide pipeline is closed, and a port of the other end of the dye liquor guide pipeline is communicated with the dye liquor inlet; wherein the gap is a gap between the first cheese and the dye liquor diversion pipeline.
In one embodiment, the first cheese yarn has the screen attached to the outer sidewall of the tubular body, or the screen is attached to the inner sidewall of the tubular body, or the screen is located inside the tubular body.
In one embodiment, the mesh has a pore size of 10nm to 100um.
In one embodiment, the screen is multi-layered.
In one embodiment, the first cheese is composed of a plurality of sequentially connected cheeses; wherein the filter cylinder cores of the adjacent cheese of the plurality of cheeses are connected and communicated.
In a second aspect, there is provided a filter cartridge suitable for cheese dyeing comprising: a tubular body; the tubular main body is attached with a filter screen and is provided with a plurality of holes, so that the dye liquor can pass through the filter screen.
In one embodiment, the screen is attached to an outer sidewall of the tubular body, or the screen is attached to an inner sidewall of the tubular body, or the screen is located inside the tubular body.
In one embodiment, the mesh has a pore size of 10nm to 100um.
In one embodiment, the screen is multi-layered.
In one embodiment, the material of the screen or the tubular body is metal or nonmetal; wherein, the metal comprises stainless steel, and the nonmetal comprises any one of ABS, PA, PC, PVC, POM, PTFE, PPO, PSF, PP, EP, PUR, PF and PET.
In a third aspect, there is provided a filter cartridge suitable for cheese dyeing comprising: a cylinder core and a filter screen. The barrel core is distributed with regular holes all around, the filter screen is arranged inside and/or outside and/or in the middle of the barrel core, and the aperture size of the filter screen is 10nm-100um.
Preferably, the material of the drum core or the screen includes a metal material and a non-metal material, wherein the metal material includes stainless steel alloy steel, and the non-metal material includes plastics including but not limited to ABS, PA, PC, PVC, POM, PTFE, PPO, PSF, PP, EP, PUR, PF, PET, etc.
Preferably, the filter screens are arranged inside, outside or in the middle of the cylinder core, singly, in combination or completely.
Preferably, wherein the screens are arranged in multiple layers.
Preferably, the pore size of the filter screen is 100nm-30um.
Preferably, when the filter screens are arranged in multiple layers, an injection molding structure is adopted, that is, the multiple layers of filter screens are arranged inside, outside or in the middle of the cylinder core after injection molding. The filter screen is partially or wholly arranged on the inner wall and the outer wall of the cylinder core.
The utility model provides a dye vat and section of thick bamboo core have increased the filter screen at section of thick bamboo core position for dye liquor is earlier through the filter screen before the contact yarn, intercepts dye, the undissolved surplus granule of auxiliary agent or the oligomer granule that produces among the dyeing process through the filter screen, has reduced look flower, fault and other influences. The structure can effectively reduce the color spots and defects caused by the aggregation of the oligomer.
Drawings
FIG. 1 is a schematic cross-sectional view of a dye vat suitable for cheese dyeing provided by an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a cartridge body of a filter cartridge provided in an embodiment of the present application;
FIG. 3 is a schematic view of a filter screen provided in accordance with an embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view of a filter cartridge provided by an embodiment of the present application;
FIG. 5 is a schematic view of the flow direction of a dye solution during cheese dyeing provided by the embodiment of the application;
fig. 6 is a schematic cross-sectional view of a filter cartridge suitable for cheese dyeing according to an embodiment of the present disclosure.
Fig. 7 is a schematic core diagram of a filter core suitable for cheese dyeing according to an embodiment of the present disclosure.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
FIG. 1 shows a dye vat provided by an embodiment of the present application. The dye vat can be used for cheese dyeing. As shown in figure 1, the dye vat comprises a dye vat cylinder body 1, a dye vat circulating pump protective shell 2, cheese 3, a cheese support 4, a filter cartridge 5 in the cheese, a dye vat middle circulating pump bearing 6, a water inlet pipeline 7, a drainage pipeline 8, a dye vat circulating pump 9, a circulating pump inlet 10 and a circulating pump outlet 11.
Wherein the cone yarn 3 means a yarn wound around the core. The package 3 is wound on the package core 5 to form a package. Wherein the water inlet pipeline 7 is used for filling dye liquor into the dye vat before dyeing begins. The water drain pipe 8 is used for draining the dye liquor from the dye vat after the dyeing is finished. In the dyeing process, both the water inlet pipe 7 and the water discharge pipe 8 are in a closed state. The circulation pump inlet 10 can also be called the liquor inlet 10 of the circulation pump for the liquor in circulation to flow into the circulation pump. The circulation pump outlet 11, also called liquor outlet 11, is used for the circulation pump 9 to pump liquor into the filter element 5.
More specifically, the dye vat comprises a dye vat cylinder body 1, and a first package yarn in the dye vat cylinder body, the first package yarn comprising a filter package core 5 and a package yarn 3 wound on said filter package core.
Wherein the filter cartridge 5 comprises a tubular body 51 and a screen 52 attached to the tubular body 51. The first end of the filter cartridge 5 is ported to allow the dye liquor to enter the filter cartridge 5. The second end of the filter cartridge 5 is ported closed to prevent the dye liquor from flowing out of the second end, so that it can be forced through the side wall 51 of the tubular body and the sieve 52, and thus through the package 3, to dye the package 3. Illustratively, the port at the second end of the filter cartridge 5 is closed by a bobbin lock. The cheese lock can also be called a cheese lock.
As shown in fig. 2, said tubular body 51 has a plurality of holes in its side wall which allow the passage of the dyeing bath through the side wall of the tubular body 51 (as shown in fig. 5), thus allowing the passage of the dyeing bath through the screen 52 and the package 3. Illustratively, the plurality of holes are evenly distributed on the sidewall of the tubular body 51.
A gap allowing the dye liquor to flow is provided between the first cheese and the inner wall of the dye vat cylinder 1. This gap allows the dye liquor passing through the package 3 to flow back to the circulation pump 9.
Wherein the circulation pump 9 communicates with the port of the first end through the dye liquor outlet 11 and with the gap through the dye liquor inlet 10.
Thus, under the drive of the circulating pump 9, the dye liquor flows through the dye liquor outlet 11, the first port, the filter cartridge 5 of the first cheese, the yarn of the first cheese, the gap and the dye liquor inlet 10 in sequence to complete the dye liquor circulation and realize the dyeing of the yarn or the cheese 3.
In some embodiments, the dye vat further comprises a dye liquor diversion conduit located within the dye vat cylinder; the diameter of the dye liquor guide pipeline is larger than that of the first cheese, the first cheese is positioned in the dye liquor guide pipeline, a port of one end, close to the second end, of the dye liquor guide pipeline is closed, and a port of the other end of the dye liquor guide pipeline is communicated with the dye liquor inlet; wherein the gap is the gap between the first cheese yarn and the dye liquor diversion pipeline.
In some embodiments, as shown in FIG. 3, the screen 52 may be crimped, which may be referred to as a crimpable screen 52.
As shown in fig. 4, in the first cheese, the rollable screen 52 is attached to the outer side wall of the tubular body 51, or the rollable screen 52 is attached to the inner side wall of the tubular body 51, or the rollable screen 52 is located inside the tubular body 51.
In some embodiments, a crimpable screen 52 may be attached to both the outer and inner sidewalls of the tubular body 51.
In some embodiments, the crimpable screen 52 is attached to both the outside wall of the tubular body 51 and the inside of the tubular body 51.
In some embodiments, the crimpable screen 52 is attached to both the inside wall of the tubular body 51 and the inside of the tubular body 51.
In some embodiments, the crimpable screen 52 is attached simultaneously to the outer sidewall, the inner sidewall of the tubular body 51 and the interior of the tubular body 51.
In some embodiments, the pore size of the crimpable screen 52 is between 10nm and 100um. Exemplary, the pore size of the crimpable screen 52 is between 30um and 100nm.
In some embodiments, the crimpable screen 52 is multi-layered. The crimpable screen 52 is comprised of multiple layers of screen. Wherein the aperture size of each layer of filter screen is 10nm-100um. Illustratively, the pore size of each layer of screen is between 30um and 100nm.
In some embodiments, the first cheese is made up of a plurality of sequentially connected cheeses; wherein, the filter drum cores of the adjacent cheese of the plurality of cheese are connected and communicated. That is, the first cheese is composed of a plurality of cheeses which are connected in sequence, and the filter cores of the adjacent cheeses in the plurality of same cheeses which are connected in sequence are connected and communicated.
In one example, the filter elements of adjacent cheeses in the plurality of sequentially connected cheeses are connected and communicated to form the filter element of the first cheese. One end of the filter element of the last cheese in the plurality of sequentially connected cheeses is connected and communicated with other cheeses, and the other end of the filter element is used as the second end of the filter element of the first cheese. The port of the second end of the filter cartridge of the first cheese is closed (e.g., by a cheese lock). The ports of the two ends of the filter drum cores of other cheese in the plurality of sequentially connected cheeses are both opened.
In another example, the filter cores of adjacent cheeses of a plurality of cheeses connected in sequence are connected and communicated to form the filter core of the first cheese. One end of a filter cartridge of a first cheese in a plurality of sequentially connected cheeses serves as a second end of the filter cartridge of the first cheese, and the other end of the filter cartridge is connected and communicated with other cheeses. Wherein the port of the second end of the filter cartridge of the first cheese is closed (e.g., by a cheese lock head). The ports of the two ends of the filter drum cores of other cheese in the plurality of sequentially connected cheeses are both opened.
In some embodiments, the material of the screen 52 is metal or non-metal. In one example, the screen 52 is made of stainless steel. In one example, the material of the screen 52 is any one of ABS, PA, PC, PVC, POM, PTFE, PPO, PSF, PP, EP, PUR, PF, and PET.
In some embodiments, the tubular body 51 is made of metal or nonmetal. In one example, the screen 52 is made of stainless steel. In one example, the material of the screen 52 is any one of ABS, PA, PC, PVC, POM, PTFE, PPO, PSF, PP, EP, PUR, PF, and PET.
Fig. 2 is a schematic view of a filter cartridge suitable for cheese dyeing according to the present invention.
As shown in fig. 2, a filter cartridge suitable for cheese dyeing, comprising: tubular body 51, screen 52. Regular holes are distributed on the whole body of the tubular main body 51, so that the penetration and the flow of the dye liquor are facilitated; the filter screen 52 is arranged inside and/or outside and/or in the middle of the tubular body 51, the pore diameter of the filter screen is 10nm-100um, the filter screen 52 can be curled, and the dyeing liquid can flow out from the inside of the cylinder core to the outside or from the outside of the cylinder core to the inside.
Example one
The tubular main body material of the filter cartridge core suitable for cheese dyeing in the embodiment is a PET material.
First, a casting mold required for the filter cartridge core is manufactured according to fig. 2.
Two layers of 1000 mesh stainless steel screens were added to the casting cavity of the mold as screens 52. And then, filling a PET raw material into the die, and performing aging curing molding to obtain the filter cylinder core.
After forming, a dyeing experiment of 25kg polyester cone yarn is carried out.
Example two
The tubular main body material of the filter cartridge core suitable for cheese dyeing in the embodiment is made of stainless steel materials.
According to fig. 2, a stainless steel material with a thickness of 82mm is selected to be punched, bent and welded to manufacture the tubular main body 51.
The inner side wall and the outer side wall of the tubular body 51 are connected with 800-mesh stainless steel filter screens as filter screens 2.
A25 kg polyester cone dyeing experiment was performed.
Comparative example 1
The existing commonly used drum core in the market is used, the drum core has no filter screen, and a 25kg polyester cone yarn dyeing experiment is carried out.
The first example, the second example and the first comparative example are used for comparing dyeing effects under the same dyeing process, procedure and formula conditions, and the comparison results are shown in the following table:
description of the drawings:
1. the leveling property test is that the yarn is woven into a cloth piece from outside to inside, 100 points are randomly selected on the cloth piece, the first point is taken as a standard sample, the average value of DE values measured at other points intuitively reflects the leveling property, the leveling property is poorer when the DE value is larger, the DE value of the yarn for the common clothing fabric is below 0.6, and the DE value is more than 1 which can be seen by naked eyes.
2. Uniformity of fastness 10 samples were taken per group for fastness testing. Among them, the color fastness of the fabric is required to be over grade 4.
As can be seen from the above table: use the utility model discloses a section of thick bamboo yarn that filter cartridge core suitable for cheese dyeing carries out dyeing, its dyeing quality is obviously superior to the quality that uses the present section of thick bamboo core commonly used to carry out the section of thick bamboo yarn that dyes.
Fig. 6 is a schematic view of a filter cartridge suitable for cheese dyeing according to the present invention.
As shown in fig. 6, a filter cartridge suitable for cheese dyeing, comprises: cylinder core, filter screen. Regular holes are distributed on the whole body of the cylinder core 61, so that the dye liquor can penetrate and flow conveniently; the filter screen 62 is arranged inside and/or outside and/or in the middle of the drum core, the aperture of the filter screen is 10nm-100um, the filter screen can be curled, and the dye liquor can flow out from the inside of the drum core to the outside or from the outside of the drum core to the inside.
EXAMPLE III
The PET material is selected as the core material of the filter core suitable for cheese dyeing.
First, a casting mold required for the filter cartridge core was manufactured according to fig. 6.
And adding two layers of 1000-mesh stainless steel filter screens serving as the filter screens 62 into a pouring cavity of the mold, pouring a PET (polyethylene terephthalate) raw material into the mold, and performing aging curing molding to obtain the filter cylinder core.
After forming, a dyeing experiment of 25kg polyester cone yarn is carried out.
Example four
The filter core material of the filter core suitable for cheese dyeing in the embodiment is stainless steel material.
According to the figure 6, stainless steel material with the thickness of delta 2mm is selected for punching, bending and welding to manufacture the cylinder core 61.
An 800 mesh stainless steel screen was welded to the inside and outside of the cartridge core 61 as the screen 62.
A25 kg polyester cone dyeing experiment was performed.
Comparative example No. two
The conventional common bobbin core in the market is used, the bobbin core is not provided with a filter screen, and a 25kg polyester bobbin yarn dyeing experiment is carried out.
The third example, the fourth example and the second comparative example are used for comparing dyeing effects under the same dyeing process, procedure and formula conditions, and the comparison results are shown in the following table:
description of the invention:
1. the leveling property test is that the yarn is woven into a cloth piece from outside to inside, 100 points are randomly selected on the cloth piece, the first point is taken as a standard sample, the average value of DE values measured at other points intuitively reflects the leveling property, the leveling property is poorer when the DE value is larger, the DE value of the yarn for the common clothing fabric is below 0.6, and the DE value is more than 1 which can be seen by naked eyes.
2. The uniformity of fastness is tested by taking 10 samples in each group, and the fastness is generally required to be more than 4 grades.
As can be seen from the above table: use the utility model discloses a filter cartridge core that is applicable to cheese dyeing carries out the cone yarn of dyeing, its dyeing quality is obviously superior to the quality that uses the present commonly used cone core to carry out the cone yarn of dyeing.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A dye vat suitable for cheese dyeing, comprising:
a dye vat body;
the first cheese is positioned in the cylinder body of the dye vat and comprises a filter cylinder core and yarns wound on the filter cylinder core; the filter cartridge includes a tubular body and a screen attached to the tubular body; the port of the first end of the filter cartridge is open, and the port of the second end of the filter cartridge is closed; the tubular main body is provided with a plurality of holes; a gap allowing dye liquor to flow is formed between the first cheese and the inner wall of the dye vat body;
a circulating pump communicating with the port of the first end through a dye liquor outlet and communicating with the gap through a dye liquor inlet; wherein,
under the drive of the circulating pump, dye liquor flows through the dye liquor outlet, the first port, the filter drum core of the first cheese, the yarn of the first cheese, the gap and the dye liquor inlet in sequence to complete dye liquor circulation.
2. The dye vat according to claim 1, further comprising a dye liquor diversion conduit located within said dye vat cylinder; the diameter of the dye liquor guide pipeline is larger than that of the first cheese, the first cheese is located in the dye liquor guide pipeline, a port of one end, close to the second end, of the dye liquor guide pipeline is closed, and a port of the other end of the dye liquor guide pipeline is communicated with the dye liquor inlet; wherein the gap is the gap between the first cheese yarn and the dye liquor diversion pipeline.
3. Dye vat according to claim 1,
in the first cheese, the filter screen is attached to the outer side wall of the tubular body, or the filter screen is attached to the inner side wall of the tubular body, or the filter screen is positioned inside the tubular body;
the aperture size of the filter screen is 10nm-100um.
4. The dye vat according to claim 1, wherein said sieve is multilayer.
5. The dye vat according to claim 1, wherein said first cheese consists of a plurality of cheeses connected in sequence; wherein the filter cylinder cores of the adjacent cheese of the plurality of cheeses are connected and communicated.
6. A filter cartridge adapted for use in cheese dyeing, comprising:
a tubular body;
a filter screen is attached to the tubular main body; wherein,
the tubular body is provided with a plurality of holes so that the dye liquor can pass through the filter screen.
7. A filter cartridge according to claim 6, wherein the screen is attached to an outer side wall of the tubular body, or the screen is attached to an inner side wall of the tubular body, or the screen is located inside the tubular body.
8. A filter cartridge according to claim 6, wherein the mesh has a pore size of 10nm-100um.
9. The filter cartridge of claim 6, wherein the screen is multi-layered.
10. A filter cartridge according to claim 6, wherein the material of the screen or the tubular body is metallic or non-metallic; wherein, the metal comprises stainless steel, and the nonmetal comprises any one of ABS, PA, PC, PVC, POM, PTFE, PPO, PSF, PP, EP, PUR, PF and PET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223124478.4U CN218619654U8 (en) | 2022-01-14 | 2022-11-24 | Dye vat and filter cartridge suitable for cheese dyeing |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022200985982 | 2022-01-14 | ||
| CN202220098598 | 2022-01-14 | ||
| CN202223124478.4U CN218619654U8 (en) | 2022-01-14 | 2022-11-24 | Dye vat and filter cartridge suitable for cheese dyeing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN218619654U true CN218619654U (en) | 2023-03-14 |
| CN218619654U8 CN218619654U8 (en) | 2023-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223124478.4U Active CN218619654U8 (en) | 2022-01-14 | 2022-11-24 | Dye vat and filter cartridge suitable for cheese dyeing |
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| Country | Link |
|---|---|
| CN (1) | CN218619654U8 (en) |
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- 2022-11-24 CN CN202223124478.4U patent/CN218619654U8/en active Active
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| CN218619654U8 (en) | 2023-04-14 |
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Correction item: National priority Correct: 202220098598.2 2022.01.14 CN Number: 11-01 Page: The title page Volume: 39 Correction item: National priority Correct: 202220098598.2 2022.01.14 CN Number: 11-01 Volume: 39 |