Liquid cartridge container, liquid cartridge container body, and method of manufacturing liquid cartridge container body

Abstract

To achieve both prevention of peeling of a lid and appropriate opening strength of the lid in a storage container of a liquid cartridge.SOLUTION: A storage container for storing a liquid cartridge that stores a liquid to be supplied to a liquid ejection apparatus, the storage container comprising: a container body including a storage portion having a space for storing the liquid cartridge and a flange portion forming an opening for storing the liquid cartridge in the storage portion; and a lid for covering the opening, the flange portion includes, on a surface facing the lid, a first rib welded to the lid and disposed to surround the opening, and a second rib welded to the lid and located closer to the opening than the first rib.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a liquid cartridge container, a liquid cartridge holder, and a method for manufacturing a liquid cartridge holder. [Background technology]

[0002] Inkjet recording devices, which are liquid ejection devices that perform desired recording by ejecting liquid such as ink from a liquid ejection head, are equipped with an ink tank for storing ink and a liquid ejection head that ejects the ink stored in the ink tank. Some inkjet recording devices are equipped with a liquid cartridge, such as an ink cartridge, which is a cartridge-shaped ink tank, and a liquid ejection head cartridge, which is a cartridge-shaped liquid ejection head, separately. Other inkjet recording devices are equipped with an ink cartridge with a liquid ejection head, which is a cartridge-shaped ink tank and liquid ejection head.

[0003] The liquid cartridge with a liquid ejection head is housed in a container for the ink cartridge with a liquid ejection head, after which a seal or the like is applied to the ink ejection ports of the liquid ejection head.The container for the ink cartridge with a liquid ejection head is often a so-called blister pack.

[0004] The container for a liquid cartridge with a liquid ejection head disclosed in Patent Document 1 includes a main body having an opening on a surface opposite to the bottom and a holder for holding the liquid cartridge inside. Patent Document 1 also discloses a configuration in which the opening is sealed with a lid. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2022-29848 Summary of the Invention [Problem to be solved by the invention]

[0006] In recent years, the inventors have found that due to factors such as increased weight due to the larger capacity of ink cartridges and a decrease in the strength of the weld between the container body and the lid due to the use of recycled plastics such as PCR material for the container in response to environmental issues, when the ink cartridge, which is the contained item, hits the lid when dropped, part of the weld between the container body and the lid can peel off.

[0007] On the other hand, if the welding strength between the container body and the lid is made too strong in order to prevent the lid from peeling off, it may become difficult to open the lid and remove the ink cartridge from the storage section. [Means for solving the problem]

[0008] In order to solve the above problems, the present invention provides a storage container for storing a liquid cartridge that contains liquid to be supplied to a liquid ejection device, the storage container comprising: a container body having a storage section with space for storing the liquid cartridge; and a flange section that forms an opening in the storage section for storing the liquid cartridge; and a lid that covers the opening, wherein the flange section has, on the surface facing the lid, a first rib that is welded to the lid and is positioned around the opening, and a second rib that is welded to the lid and is positioned closer to the opening than the first welded rib. [Effects of the Invention]

[0009] According to the present invention, it is possible to prevent the lid from peeling off and to provide the lid with an appropriate strength for opening in a liquid cartridge storage container. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a perspective view of a cartridge housed in a housing container according to an embodiment of the present invention; [Figure 2]1 is a perspective view of a state in which a cartridge is housed in a housing container body according to an embodiment of the present invention; [Figure 3] A top view of the cartridge stored in the storage container body. [Figure 4] FIG. 1 is a partially enlarged cross-sectional view of a storage container body before a lid is welded in an embodiment of the present invention. [Figure 5] FIG. 10 is a partially enlarged cross-sectional view of the storage container body after the lid has been welded in the embodiment of the present invention. [Figure 6] 1 is a cross-sectional view of a container after the lid has been welded in an embodiment of the present invention; [Figure 7] 1 is a top view of a storage body according to an embodiment of the present invention, and peeling load measurement results; [Figure 8] Manufacturing flow of a container according to an embodiment of the present invention [Figure 9] 10 is a cross-sectional view of a housing in which a cartridge is housed in a comparative example. [Figure 10] FIG. 10 is a perspective view of a comparative example in which a cartridge is housed in a housing container body. DETAILED DESCRIPTION OF THE INVENTION

[0011] The following describes in detail exemplary embodiments of the present invention with reference to the drawings. However, the dimensions, materials, shapes, and relative positions of the components described in the embodiments may be changed as appropriate depending on the configuration of the device to which the invention is applied and various conditions. In other words, the scope of the present invention is not limited to the following embodiments.

[0012] Furthermore, the storage container of this embodiment is a storage container for a liquid ejection head in which the liquid ejection head is housed when the liquid ejection head is distributed on the market. Note that, although a storage container for a liquid ejection head is described in this embodiment, the object housed in the storage container is not limited to a liquid ejection head. For example, the storage container may be a storage container that houses a liquid cartridge for refilling a liquid ejection head (inkjet head) equipped in an inkjet printer with liquid, or a liquid cartridge having a liquid ejection head.

[0013] In the following description, the height direction of the liquid cartridge when it is attached to the liquid ejection device is referred to as the Z direction. The width direction of the liquid cartridge, which is perpendicular to the Z direction, is referred to as the X direction. The depth direction of the liquid cartridge, which is perpendicular to the X and Z directions, is referred to as the Y direction.

[0014] First, the basic configuration of a liquid cartridge holder of a comparative example will be described with reference to FIGS. 9 and 10. FIG. 9 is a cross-sectional view showing a liquid cartridge holder of a comparative example. A blister pack 300 serving as a storage container includes a blister container 310 serving as a container body having an opening for inserting a cartridge 400, and a lid 320 for sealing the opening. The liquid cartridge holder is formed by storing the cartridge 400 inside the blister pack 300. FIG. 10 is a perspective view showing a state in which the cartridge 400 is stored in the blister container 310 through the opening of the blister container 310. The blister container 310 includes a storage section 311 for storing the cartridge 400, and a flange portion 312 that forms the opening of the blister container 310 and is welded to the lid 320 via a welding rib 313. The welding rib 313 is provided around the entire periphery of the surface of the flange portion 312.

[0015] The blister container 310 and the lid 320 are welded together by melting and fixing the welding rib 313 using a heating means such as a heating horn. The welding rib 313 is provided around the entire circumference of the flange portion 312 so as to surround the opening, thereby sealing the inside of the blister container 310. This makes it possible to suppress evaporation of the liquid contained in the cartridge 400 during logistics and to prevent foreign matter from entering the cartridge 400 from the outside.

[0016] However, the inventors' investigations have revealed that the following problems are likely to occur due to the increased weight of liquid cartridges resulting from the increased capacity and the reduced welding strength resulting from the use of recycled plastics, such as PCR materials, in blister containers in response to environmental concerns. For example, if the flange portion 312 or the lid 320 is dropped in a downward position, the protruding portion of the cartridge 400 may impact the lid 320, potentially causing a portion of the welding portion between the blister container 310 and the lid 320 to peel off. To prevent this peeling, the welding area can be increased and the welding strength improved by widening the welding rib 313 or by providing the welding rib 313 in a double layer instead of a single layer. However, if the welding strength is too high, it may be difficult to peel the lid 320 from the blister container 310 and remove the cartridge 400.

[0017] An example of an embodiment of the present invention will be described below with reference to the drawings.

[0018] 1(a) and 1(b) are perspective views showing a cartridge 200 of this embodiment. The cartridge 200 has a discharge substrate (discharge port substrate) 250 having discharge ports at the bottom when the liquid ejection device is in use. In other words, the cartridge 200 is a liquid cartridge integrated with a liquid ejection head. The cartridge 200 has three protrusions on the top: a protrusion 210 for identifying the stored liquid by matching it with the structure of the liquid ejection device, a pin 220 for positioning the cartridge in the liquid ejection device, and a grip 230 for use when attaching the cartridge 200 to the liquid ejection device. FIG. 1(a) is a perspective view seen from the opposite side of the discharge substrate 250, and FIG. 1(b) is a perspective view seen from the discharge substrate 250 side.

[0019] The ink storage chamber 204 is filled with an absorbent material that holds the ink.

[0020] 2 is a perspective view showing a state in which a cartridge is stored in the storage container of this embodiment, and is a perspective view before the lid 120 is welded to the blister container 110. The blister container 110, which serves as a container body, has a storage section 111 in which a cartridge 100, serving as a stored item, is stored. The blister container 110 has a flange section 112, serving as an opening periphery, which forms an opening 111a for putting the stored item in and taking it out of the storage section 111.

[0021] FIG. 3 is a top view of the blister container 110 as viewed from the flange portion 112 side. Similar to the comparative example shown in FIG. 9, the blister container 110 has a first welding rib 113 provided around the entire periphery of the surface 112a of the flange portion 112 facing the lid 120. The first welding rib 113 is a protrusion provided on the surface 112a. In addition, in this embodiment, eight second welding ribs 114 are discontinuously provided on the surface 112a of the flange portion 112, closer to the storage portion 111 than the first welding rib 113, when viewed from a direction perpendicular to the surface 112a of the flange portion 112. In other words, the second welding ribs 114 can be considered a rib located closer to the opening (opening 111a) than the first welding rib 113. Like the first welding rib, the second welding rib 114 is a protrusion provided on the surface 112a. The second weld rib 114 is provided near the three protrusions (protrusion 210, pin 220, and gripping portion 230) of the cartridge 200 described above. This increases the total weld area between the blister container 110 and the lid 120 near the protrusions, thereby locally increasing the weld strength. Therefore, even if the cartridge holder 1000 is dropped with the flange 112 facing downward, the protrusion of the cartridge will impact the lid 120, preventing the first weld rib 113 between the blister container 110 and the lid 120 from peeling off. Furthermore, because the second weld rib 114 is not provided around the entire circumference of the flange 112, the weld strength is prevented from becoming too strong.

[0022] After the cartridge 200 is housed in the housing 111, the lid 120 is joined to the flange 112 to form a sealed space. The joint between the lid 120 and the welding ribs (first welding rib 113 and second welding rib 114) of the blister container 110 is sealed by heat sealing, but other joining methods may be used. In this embodiment, as an example, the material of the lid 120 is a laminate film of PET (polyethylene terephthalate) resin and PP (polypropylene). Furthermore, PP (polypropylene) is used as the material of the blister container 110 including the welding ribs. The materials of the lid 120 and the blister container 110 are not limited to those mentioned above.

[0023] Recycled plastics can also be used as the material for the lid 120 and the blister container 110. In this disclosure, recycled plastic materials are used in a broad sense to encompass both post-consumer plastics (PCR materials) and pre-consumer materials. Recycled plastic materials are made from materials that have undergone significant degradation due to thermal history during molding, stress during use, heat, light, solvents, and other factors. For these reasons, recycled plastic materials are known to have different physical properties from virgin materials. For example, their impact absorption, in which the molecular chains within the material flex to absorb force upon impact, tends to deteriorate. This tendency can be confirmed by Charpy impact testing, and molded materials containing recycled plastic materials exhibit lower impact strength than virgin materials. This deterioration in impact absorption is due to the original molecular chains being severed due to the aforementioned deterioration, reducing the impact absorption effect of the molecular chains themselves.

[0024] 4 is an enlarged cross-sectional view showing the first welding rib 113 and the second welding rib 114 provided on the surface 112a of the flange portion 112 before the lid 120 is welded, taken along line IV-IV in FIG. 3. In terms of the cross-sectional shape on a straight line perpendicular to the longitudinal direction, the first welding rib 113 and the second welding rib 114 (hereinafter, both will be referred to as "welding ribs") each have a curved shape such as an R-shape on the outer side (right side in the figure) and a straight line shape inclined with respect to the surface of the flange portion 112 on the inner side (storage section side, left side in the figure).

[0025] 5 is an enlarged cross-sectional view of the blister container 110 after the lid 120 has been welded. For both the first weld rib 113 and the second weld rib 114, the cross-sectional shape of the weld rib at the boundary between the lid 120 and the weld rib on the inside (left side of the figure) after welding has an obtuse angle. In contrast, on the outside (right side of the figure), the R-shape before welding is transformed into a wedge-like shape by welding to the lid 120, and the cross-sectional shape of the weld rib at the boundary between the lid 120 and the weld rib has an acute angle. Therefore, the weld strength between the lid 120 and the weld rib is strong enough to withstand a force applied from the inside of the blister container 110 to peel the lid 120, but when peeling the lid 120 from the outside, the force is concentrated at the base of the wedge shape, making it easier to peel the lid 120.

[0026] Regarding the height of the welding ribs (height in a direction perpendicular to the surface 112a of the flange portion 112) before welding the lid 120, as shown in Fig. 5, the height of the first welding rib 113 is slightly greater than the height of the second welding rib 114. However, the relationship in height between the first welding rib 113 and the second welding rib 114 is not limited to the configuration shown in Fig. 4. For example, if it is desired to further strengthen the welding strength of the second welding rib 114, the height of the second welding rib 114 before welding may be the same as or greater than the height of the first welding rib 113.

[0027] FIG. 6 is a cross-sectional view of housing 1000 in a state in which cartridge 200 is housed in blister container 110 and lid 120 is welded, taken along line VI-VI in FIG. 3. FIG. 6 also shows a movable range A of lid 120 after lid 120 is welded. In housing 1000, cartridge 200 is housed in blister pack 100 as a housing container. Blister pack 100 has blister container 110 as a container body having an opening for inserting cartridge 200, and lid 120 that seals the opening. When housing 1000 is dropped with flange 112 facing downward, the protrusions (protrusion 210, pin 220, and grip 230) provided on the top of cartridge 200 come into contact with lid 120 and apply an impact, as described above. As a result, the lid 120 bends significantly upward in the figure from the surface 112a of the flange portion 112, and the protrusion also moves upward from the surface 112a toward the lid 120 in the figure. For example, when the housing body 1000 is housed in an outer box or the like, the protrusion of the cartridge 200 comes into contact with the inner surface of the outer box, and the impact of the cartridge 200 being dropped on the floor or the like is transmitted directly to the cartridge 200 itself, which may result in damage to the ejection substrate 250 or the like.

[0028] 4 to 6, in the configuration of this embodiment, the second welding rib 114 is located at the edge of an extension of the inner surface 117 of the blister container 110 that constitutes the storage section 111. In other words, the second welding rib 114 is provided so that its side surface is positioned along the inner surface 117 of the blister container 110. This makes it possible to reduce the movable range A of the lid 120 and increase the tension of the lid 120. Therefore, it is possible to minimize the deflection of the lid 120 when the storage body 1000 is dropped with the surface 112a of the flange portion 112 facing downward. As a result, it is possible to reduce contact of the protrusion with the outer box and prevent damage to the discharge substrate 250, etc.

[0029] The placement of the second welding rib 114 will be described in more detail below.

[0030] 7 is a view of a housing 1000 in which a cartridge 200 is housed in a blister container 110 and a lid 120 is welded, as viewed from the lid 120 side. In this embodiment, the lid 120 is a transparent film-like member, so the cartridge 200 is visible in FIG.

[0031] 7, the second welding rib 114 disposed on the short side of the flange portion 112 near the grip portion 230 is referred to as second welding rib 114-1, and the second welding rib 114-8 is disposed near the protrusion 210. The six second welding ribs 114 disposed on the long side of the flange portion 112 are referred to as 114-2 to 114-7.

[0032] In Fig. 7, the blister container 110 is positioned so that its long side is at an angle of 45° with respect to the horizontal direction in the figure, in order to simulate the process of peeling off the lid 120 when removing the stored cartridge 200. In addition, Fig. 7 also shows the position of the second weld rib 114 in comparison with the results of actual measurement of the peel load using a peel tester.

[0033] Here, we will explain the peel test of the lid 120. First, the peel start point B of the lid 120 is gripped by the gripping part of the peel tester. Then, by moving the gripping part at a constant speed in the direction of the arrow marked on the lid 120 (direction C), a movement distance vs. peel load curve of the lid 120 is obtained as shown in the upper part of FIG.

[0034] At one point in the peeling process in the peeling direction C, the total number of overlapping welding ribs (the total number of first welding ribs 113 and second welding ribs 114) included in a direction parallel to the surface 112a of the flange portion 112 and perpendicular to the peeling direction C is preferably three or less, except in the initial stage of peeling. This can be restated as follows: When viewed from a direction perpendicular to the surface 112a, the shape of the opening 111a is a substantially rectangular shape with two long sides, two short sides, and four corners. The total number of first welding ribs 113 and second welding ribs 114 included on a line perpendicular to the peeling direction of the lid 120 and intersecting the long sides at a 45° angle is preferably three or less and is at least 90% of the distance between two corners located diagonally opposite each other of the substantially rectangular shape in the peeling direction.

[0035] Specifically, in range I at the very beginning of lid 120 peeling, only the first welding rib 113 overlaps, so the total overlapping number is two. In range II immediately thereafter, the second welding rib 114-1 near the gripping portion 230 and the second welding rib 114-2 located on the long side are added, bringing the total overlapping number to four. However, in this embodiment, the second welding rib 114-2 is short, approximately 5 mm long, and located near blister peeling starting point B, so there is no significant increase in peel strength (see the upper part of FIG. 7). Immediately thereafter, in range III, where the peeling position has passed the second welding rib 114-2, the total overlapping number is three. After range III, by devising the arrangement of the second welding ribs 114-3 to 114-7 and the second welding rib 114-8, the total overlapping number of the welding ribs remains three or less, making it possible to suppress the peel load below the specified load. This prevents the weld strength from being too high, making it difficult to peel the lid 120 from the blister container 110 and remove the cartridge 200. At one corner of the flange 112, where the peeling of the lid 120 begins, the length of the second weld rib 114 provided on at least one of the short and long sides of the opening 111a is preferably 7.5 mm or less, and more preferably 5.0 mm or less. In other words, at least one of the second weld ribs 114 provided closest to the corner on each of the long and short sides preferably has a length of 7.5 mm or less. This allows the total number of overlapping weld ribs to be three or less, except during the initial peeling process.

[0036] Furthermore, even after the lid 120 is peeled off from the blister container 110, the base portions of the first weld rib 113 and the second weld rib 114 remain on the surface 112a of the flange portion 112 (see FIG. 5). Therefore, if a new lid 120 is prepared, it is possible to manufacture a container 1000 that reuses the blister container 110. FIG. 8 shows a manufacturing process flow for the container 1000 when the blister container 110 is also reused. First, the cartridges 200 are stored in the blister container 110 (S1), and the lid 120 is welded to the blister container 110 (S2), thereby manufacturing the cartridge container 1000. Thereafter, the stored cartridges are removed, and the blister containers 110 from which the lids have been peeled off are collected (S3). A new cartridge 200 is stored in the collected blister container 110 (S4), and a new lid 120 is welded (S5), thereby manufacturing a cartridge storage body that reuses the blister container 110. If the blister container 110 is collected in the step (S3) of collecting the blister container 110 while still containing the used cartridge 200, the cartridge can be regenerated and reused. In particular, when collecting cartridges 200 with a discharge substrate 250, using the blister container 110 of the storage container of the present invention makes it easier to reduce damage to the head portion 205 and the discharge substrate 250 during collection.

[0037] [Technical Features of the Present Disclosure] The present disclosure includes the following configurations and methods.

[0038] [Configuration 1] A container for accommodating a liquid cartridge that contains liquid to be supplied to a liquid ejection device, a container body including a storage section having a space for storing the liquid cartridge, and a flange section forming an opening in the storage section for storing the liquid cartridge; a lid for covering the opening, The flange portion has a surface facing the lid, a first rib welded to the lid and disposed around the opening; a second rib welded to the lid and positioned closer to the opening than the first rib; A storage container having:

[0039] [Configuration 2] 2. The storage container of claim 1, having a plurality of the second ribs.

[0040] [Configuration 3] 3. The storage container according to claim 1, wherein the second rib is provided along the inner surface of the container body.

[0041] [Configuration 4] A storage container described in any one of configurations 1 to 3, wherein in the cross-sectional shape of the first rib in a direction perpendicular to the longitudinal direction, the side facing the storage section is linear and the side facing the opposite side to the storage section is curved.

[0042] [Configuration 5] 5. The container according to any one of configurations 1 to 4, wherein the second rib is not provided around the entire circumference of the flange portion.

[0043] [Configuration 6] When viewed from a direction perpendicular to the plane, The opening has a substantially rectangular shape with two long sides, two short sides, and four corners, A storage container described in any one of configurations 1 to 5, wherein the total number of the first ribs and the second ribs included on a straight line perpendicular to the peeling direction of the lid and intersecting the long side at an angle of 45° is 3 or less and is 90% or more of the distance between two corners located diagonally opposite each other of the approximately rectangular shape in the peeling direction.

[0044] [Configuration 7] When viewed from a direction perpendicular to the plane, The opening has a substantially rectangular shape with two long sides, two short sides, and four corners, A storage container described in any one of configurations 1 to 6, wherein at least one of the second ribs located closest to one of the corners on each of the long side and the short side has a length of 7.5 mm or less.

[0045] [Configuration 8] 8. The storage container of any one of configurations 1 to 7, wherein the lid is a film.

[0046] [Configuration 9] 9. The storage container of any one of aspects 1 to 8, wherein the container body comprises plastic.

[0047] [Configuration 10] 10. The storage container according to any one of configurations 1 to 9, wherein the container body includes a recycled plastic material or a resin material mixed with recycled plastic material.

[0048] [Configuration 11] A liquid cartridge storage body including the liquid cartridge and the storage container according to any one of configurations 1 to 10.

[0049] [Configuration 12] 12. The liquid cartridge storage unit according to claim 11, wherein the liquid cartridge has a protrusion that faces the lid when stored in the storage section.

[0050] [Configuration 13] 13. The liquid cartridge storage unit according to claim 11, wherein the liquid cartridge has a discharge port substrate provided with a discharge port for discharging liquid.

[0051] [Configuration 14] 14. The liquid cartridge holder according to any one of configurations 11 to 13, wherein the liquid cartridge contains ink.

[0052] [Method 1] A housing including a liquid cartridge that contains a liquid to be supplied to a liquid ejection device, and a housing container that houses the liquid cartridge, the container comprises a container body including a storage section having a space for storing a liquid cartridge, and a flange section forming an opening in the storage section for storing the liquid cartridge, and a lid for covering the opening, the flange portion has, on a surface facing the lid, a first rib arranged to surround the opening and a second rib located closer to the opening than the first rib, a housing step of housing the liquid cartridge in the housing portion; a welding step of welding the lid to the flange portion via the first rib and the second rib; A method for manufacturing a liquid cartridge container, comprising:

[0053] [Method 2] A method for manufacturing a liquid cartridge holder according to any one of configurations 11 to 14, comprising: a recovery step of recovering the container body from which the welded lid has been peeled off from the storage container; a housing step of housing a second liquid cartridge in the container body; a welding step of welding a second lid to the flange portion; A method for manufacturing a liquid cartridge container, comprising: [Explanation of symbols]

[0054] 1000 storage unit 100 blister packs (storage containers) 112 flange 113 First welding rib 114 Second welding rib 120 Lid 200 cartridges

Claims

1. A container for accommodating a liquid cartridge that contains liquid to be supplied to a liquid ejection device, a container body including a storage section having a space for storing the liquid cartridge, and a flange section forming an opening in the storage section for storing the liquid cartridge; a lid for covering the opening, The flange portion has a surface facing the lid, a first rib welded to the lid and disposed around the opening; a second rib welded to the lid and positioned closer to the opening than the first rib; A storage container having:

2. The container of claim 1 , comprising a plurality of said second ribs.

3. The storage container according to claim 1 , wherein the second rib is provided along an inner surface of the container body.

4. 2. The storage container according to claim 1, wherein in a cross-sectional shape of the first rib in a direction perpendicular to the longitudinal direction, the side surface on the storage section side is linear and the side surface on the opposite side to the storage section is curved.

5. The container according to claim 1 , wherein the second rib is not provided around the entire circumference of the flange portion.

6. When viewed from a direction perpendicular to the plane, The opening has a substantially rectangular shape with two long sides, two short sides, and four corners, 2. The storage container of claim 1, wherein the total number of the first ribs and the second ribs included on a straight line perpendicular to the peeling direction of the lid and intersecting the long side at an angle of 45° is 3 or less and is 90% or more of the distance between two corners located diagonally opposite each other of the approximately rectangular shape in the peeling direction.

7. When viewed from a direction perpendicular to the plane, The opening has a substantially rectangular shape with two long sides, two short sides, and four corners, 2. The container according to claim 1, wherein at least one of the second ribs provided closest to one of the corners on each of the long and short sides has a length of 7.5 mm or less.

8. The storage container of claim 1 , wherein the lid is a film.

9. The storage container of claim 1 , wherein the container body comprises plastic.

10. 2. The storage container according to claim 1, wherein the container body contains recycled plastic material or a resin material mixed with recycled plastic material.

11. A liquid cartridge storage unit comprising the liquid cartridge and the storage container according to claim 1.

12. The liquid cartridge storage unit according to claim 11 , wherein the liquid cartridge has a protrusion that faces the lid when the liquid cartridge is stored in the storage section.

13. 12. The liquid cartridge holder according to claim 11, wherein the liquid cartridge has a discharge port substrate provided with a discharge port for discharging the liquid.

14. The liquid cartridge holder according to claim 11 , wherein the liquid cartridge contains ink.

15. A housing including a liquid cartridge that contains a liquid to be supplied to a liquid ejection device, and a housing container that houses the liquid cartridge, the container comprises a container body including a storage section having a space for storing a liquid cartridge, and a flange section forming an opening in the storage section for storing the liquid cartridge, and a lid for covering the opening, the flange portion has, on a surface facing the lid, a first rib arranged to surround the opening and a second rib located closer to the opening than the first rib, a housing step of housing the liquid cartridge in the housing portion; a welding step of welding the lid to the flange portion via the first rib and the second rib; A method for manufacturing a liquid cartridge container, comprising:

16. 13. A method for manufacturing a liquid cartridge holder according to claim 12, comprising the steps of: a recovery step of recovering the container body from which the welded lid has been peeled off from the storage container; a housing step of housing a second liquid cartridge in the container body; a welding step of welding a second lid to the flange portion; A method for manufacturing a liquid cartridge container, comprising:

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