A disperse dye ink preparation device for inkjet printing

Abstract

The utility model relates to the technical field of ink preparation, in particular to a disperse dye ink preparation device for inkjet printing, comprising a filter, the filter comprising a filter housing, a filter channel and a filter assembly, the filter housing is provided with a filter inlet and a filter outlet, the filter channel is provided in the filter housing; the filter channel comprises a first flow channel, a return flow channel and a second flow channel which are connected in sequence, the input end of the first flow channel is connected with the filter inlet, the output end of the second flow channel is connected with the filter outlet, the filter assembly is arranged in the second flow channel, the disperse dye ink in the second flow channel flows from bottom to top, the filter assembly is used for screening and blocking impurities in the disperse dye ink, by arranging the filter assembly in the second flow channel, and the ink in the second flow channel flows from bottom to top, so that the impurities can be reduced under the influence of gravity and the accumulation at the filter assembly is reduced, thereby ensuring the filtering efficiency and extending the service life of the filter.

Description

Technical Field

[0001] The utility model relates to the technical field of ink preparation, in particular to a disperse dye ink preparation device for inkjet printing. Background Art

[0002] Disperse dye inks are used in inkjet printing, producing vibrant images. Filtering disperse dye inks is a crucial step in the production process. Prior art uses filters to filter inks, which must pass through the filters before use. Because the filter elements are located at the ports of the filter flow channel, impurities generated during filtration can accumulate in the filter elements, leading to clogging and reduced filtration efficiency. Furthermore, the filters need to be cleaned and replaced after a period of use, significantly increasing costs and production efficiency. Utility Model Content

[0003] The technical problem to be solved by the present invention is: in order to overcome the problem that the filter element in the prior art is arranged at the port of the filter channel, so that impurities generated by filtration will accumulate at the filter element, causing the filter element to be blocked, resulting in poor filtration efficiency. On the other hand, the filter needs to be cleaned and replaced after a period of use, which greatly increases the cost of use and production efficiency. A disperse dye ink preparation device for inkjet printing is provided.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a disperse dye ink preparation device for inkjet printing, comprising a filter,

[0005] The filter includes a filter housing, a filter channel and a filter assembly. The filter housing is provided with a filter inlet and a filter outlet, and the filter channel is provided in the filter housing.

[0006] The filter channel includes a first flow channel, a return flow channel and a second flow channel which are connected in sequence. The input end of the first flow channel is connected to the filter inlet, and the output end of the second flow channel is connected to the filter outlet. The filter component is arranged in the second flow channel. The disperse dye ink in the second flow channel flows from bottom to top. The filter component is used to screen and block impurities in the disperse dye ink. By arranging the filter component in the second flow channel and the ink in the second flow channel flows from bottom to top, the impurities can be reduced under the influence of gravity and accumulated at the filter component, thereby ensuring the filtration efficiency and extending the service life of the filter.

[0007] In order to solve the problem of impurities accumulating in the pipeline and affecting the subsequent flow of disperse dye ink, the filter channel further includes a collection chamber, which is connected to the return channel and is used to collect impurities in the disperse dye ink.

[0008] In order to solve the problem that impurities are easily washed into the flow channel by ink, affecting the filtration and flow of ink, the cavity opening of the collection cavity is further connected to the second half of the return channel.

[0009] In order to solve the problem that impurities are easily washed into the flow channel by ink, affecting the filtration and flow of ink, the mouth of the collection chamber is further contracted toward its center to form a limited position portion.

[0010] The filter assembly further includes a primary filter membrane, a secondary filter membrane and a tertiary filter membrane arranged in sequence from bottom to top.

[0011] It further includes that the filter housing is assembled from multiple shell sections.

[0012] The beneficial effect of the present invention is that the present invention provides a disperse dye ink preparation device for inkjet printing, which arranges the filter component in the second flow channel, and the ink in the second flow channel flows from bottom to top, so that impurities can be reduced under the influence of gravity and accumulated at the filter component, thereby ensuring the filtration efficiency and extending the service life of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 3 This is a structural schematic diagram of the ink flow state of the utility model (the arrows indicate the ink flow);

[0017] Figure 4 This is a schematic structural diagram of Example 2 of the present utility model (arrows indicate ink flow).

[0018] In the figure: 1. filter, 11. filter housing, 111. filter inlet, 112. filter outlet, 12. filter channel, 121. first flow channel, 122. return flow channel, 123. second flow channel, 124. collecting chamber, 1241. limiting portion, 13. filter assembly. DETAILED DESCRIPTION

[0019] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0020] like Figure 1This is a schematic structural diagram of the utility model, a disperse dye ink preparation device for inkjet printing, comprising a filter 1,

[0021] The filter 1 includes a filter housing 11, a filter channel 12, and a filter assembly 13. The filter housing 11 is provided with a filter inlet 111 and a filter outlet 112. The filter channel 12 is provided in the filter housing 11.

[0022] like Figure 1 、 Figure 3 As shown, the filter channel 12 includes a first flow channel 121, a return flow channel 122 and a second flow channel 123 which are connected in sequence. The return flow channel 122 is a semicircular structure. The input end of the first flow channel 121 is connected to the filter inlet 111, and the output end of the second flow channel 123 is connected to the filter outlet 112. The filter component 13 is arranged in the second flow channel 123. The disperse dye ink in the second flow channel 123 flows from bottom to top. The filter component 13 is used to screen and block impurities in the disperse dye ink. By arranging the filter component 13 in the second flow channel 123 and the ink in the second flow channel 123 flows from bottom to top, the impurities can be reduced under the influence of gravity. The accumulation at the filter component 13 is reduced, thereby ensuring the filtration efficiency and extending the service life of the filter.

[0023] The filter housing 11 is assembled from multiple shell sections. Due to the large number of internal channels, the production difficulty of the filter housing 11 is reduced.

[0024] The filter assembly 13 includes a primary filter membrane, a secondary filter membrane, and a tertiary filter membrane arranged in sequence from bottom to top. The filter assembly 13 may also use other filter components such as a microporous filter membrane.

[0025] During filtering, the ink filter inlet 111 enters the filter channel 12, passes through the first channel 121 and the return channel 122, and contacts the filter component 13 in the second channel 123. The filter component 13 allows qualified ink to pass through and blocks impurities. Since the impurities are located below the filter component 13 and are affected by gravity, they will reduce the accumulation outside the filter component 13 to a certain extent, thereby ensuring the filtration efficiency.

[0026] Example 2:

[0027] The technical feature that distinguishes Example 2 from Example 1 is the design of the collection chamber 124 .

[0028] like Figure 2 、 Figure 3As shown, the filter channel 12 also includes a collection chamber 124, which is connected to the return channel 122. The collection chamber 124 is used to collect impurities in the disperse dye ink. The impurities fall into the collection chamber 124 under the influence of gravity. The impurities are temporarily stored in the collection chamber 124, which reduces the impurities from repeatedly flowing to the filter component 13 under the flow of ink to affect the filtration of the filter component 13. Moreover, due to the design of the cavity mouth of the collection chamber 123 itself, the flow rate of the ink entering the collection chamber 124 can be reduced. When in use, part of the impurities fall directly into the collection chamber 124 under the influence of gravity during the filtration process. On the other hand, during the production gap, there is no ink flow inside the filter 1, and the impurities fall into the collection chamber 124 under the influence of gravity; the cavity mouth of the collection chamber 124 shrinks toward its center to form a limiting portion 1241, which further reduces the scouring of the collection chamber 124 during the flow of ink, so that the liquid in the collection chamber 124 is in a small flow state (not enough to drive impurities).

[0029] Example 3:

[0030] The technical feature that distinguishes Example 3 from Example 2 is the location where the collection chamber 124 is installed.

[0031] like Figure 4 As shown, the mouth of the collection chamber 124 is connected to the rear half of the return channel 122. Since the ink in the rear half of the return channel 122 flows from bottom to top, the flow of ink has less impact on the liquid in the collection chamber 124, further reducing the possibility of impurities being brought by the ink.

[0032] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A disperse dye ink preparation device for inkjet printing, characterized in that: comprising a filter (1), The filter (1) comprises a filter housing (11), a filter channel (12) and a filter assembly (13); the filter housing (11) is provided with a filter inlet (111) and a filter outlet (112); the filter channel (12) is provided in the filter housing (11); The filter channel (12) comprises a first flow channel (121), a return flow channel (122) and a second flow channel (123) which are connected in sequence; the input end of the first flow channel (121) is connected to the filter inlet (111); the output end of the second flow channel (123) is connected to the filter outlet (112); the filter component (13) is arranged in the second flow channel (123); disperse dye ink flows from bottom to top in the second flow channel (123); and the filter component (13) is used to filter and block impurities in the disperse dye ink.

2. A disperse dye ink preparation device for inkjet printing as claimed in claim 1, characterized in that: The filtering channel (12) further comprises a collecting chamber (124), wherein the collecting chamber (124) is connected to the reflux channel (122), and the collecting chamber (124) is used to collect impurities in the disperse dye ink.

3. A disperse dye ink preparation device for inkjet printing as claimed in claim 2, characterized in that: The cavity opening of the collecting cavity (124) is in communication with the rear half of the return channel (122).

4. A disperse dye ink preparation device for inkjet printing as claimed in claim 2, characterized in that: The cavity opening of the collection cavity (124) contracts toward its center to form a limiting portion (1241).

5. The disperse dye ink preparation device for inkjet printing according to claim 1, characterized in that: The filter assembly (13) comprises a primary filter membrane, a secondary filter membrane and a tertiary filter membrane which are arranged in sequence from bottom to top.

6. A disperse dye ink preparation device for inkjet printing as claimed in claim 1, characterized in that: The filter housing (11) is assembled from multiple shell sections.

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