Liquid storage container

Abstract

The invention discloses a liquid storage container. The liquid storage container has a storage unit that stores a liquid, a supply unit for supplying the liquid stored in the storage unit to the outside, and a protection member that protects the supply unit. The protective member includes a reprocessed plastic material or a resin material obtained by mixing the reprocessed plastic material. The protective member has a portion such that when the protective member is attached to the supply unit, a relationship between a side width A of the protective member on a first end side and a side width B of the protective member on a side of the storage unit opposite the first end side satisfies 1lt; a / Blt; 7.

Description

Technical Field

[0001] The present invention relates to a liquid storage container capable of storing a liquid such as ink. Background Art

[0002] From the perspective of environmental protection, products made of recycled plastic materials are manufactured. Generally, there is a problem in molding using recycled plastic materials, that is, the impact absorption ability is impaired when the molded product made of recycled plastic materials drops / collides. Particularly, in the case of using recycled plastic materials for a large-capacity liquid storage container of an inkjet printing device (liquid ejection device), this influence is great.

[0003] Recycled plastic materials are made of materials severely deteriorated due to the thermal history during the molding process, stress, heat, light, and solvents during use, etc. In view of these circumstances, it is well known that the physical properties of recycled plastic materials are different from those of the original materials. For example, the impact absorption ability of recycled plastic materials tends to be low. The impact absorption ability is the ability of the molecular chains in the material to warp and release force when an impact is applied. This tendency can be confirmed by the Charpy impact test; the molded material including recycled plastic materials exhibits a lower impact strength than the original material. This impairment of the impact absorption ability is due to the breakage of the original molecular chains due to the above-mentioned deterioration and the reduction of the impact absorption effect of the molecular chains.

[0004] Japanese Patent Laid-Open No. H10-16249 (1998) (hereinafter referred to as Document 1) shows a structure for providing sufficient rigidity to a cartridge main body molded from a soft synthetic resin material. More specifically, ridges are provided at the corners of the peripheral wall of the cartridge main body, and the opening end edge is thickened. At the same time, protrusions are provided longitudinally on the inner surface of the lid body, and the protrusion portions are molded to protrude.

[0005] As described above, in the case of using recycled plastic materials as the material of the liquid storage container, the impact strength tends to be lower than that of the original material. Particularly, in the case of providing a protruding portion at the end of the liquid storage container as shown in Document 1, if the container is accidentally dropped and the protruding portion directly receives an impact, the protruding portion at the end may have a notch or crack. Summary of the Invention

[0006] According to one aspect of the present disclosure, a liquid storage container includes a storage unit configured to store a liquid, a supply unit configured to supply the liquid stored in the storage unit to the outside, and a protection member configured to protect the supply unit, wherein the protection member includes a recycled plastic material or a resin material obtained by mixing recycled plastic materials, and the protection member has a portion such that when the protection member is attached to the supply unit, the relationship between the side width A of the protection member at the first end side and the side width B of the protection member at the side of the storage unit opposite to the first end side satisfies 1 < A / B < 7.

[0007] Other features of the present invention will become apparent from the following description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a perspective view of an inkjet printing apparatus;

[0009] Figure 2 is a perspective view showing an ink tank;

[0010] Figure 3 is a perspective view of a tank cap;

[0011] Figure 4 is a perspective view of a tank cap;

[0012] Figure 5 is a cross-sectional view of a tank cap;

[0013] Figure 6 is a perspective view of an ink tank;

[0014] Figure 7 is a perspective view of a tank cap;

[0015] Figure 8 is a perspective view of a tank cap;

[0016] Figure 9 is a cross-sectional view of a tank cap; and

[0017] Figure 10 is a perspective view of an ink tank. DETAILED DESCRIPTION

[0018] Preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be noted that the following embodiments do not limit the content disclosed herein, and not all combinations of features described in the following embodiments are necessary to solve the problems of the present disclosure. The same constituent elements are denoted by the same reference numerals. As an example of the use of the liquid storage container, replenishing liquid (ink) to a liquid ejection device (inkjet printing device) will be described. However, the use of the liquid storage container is not limited thereto. Further, the liquid stored in the liquid storage container is not limited to ink, and may be, for example, a predetermined processing liquid.

[0019] <<First Embodiment>>

[0020] The recycled plastic material described in this embodiment is used in a broad sense and includes post-consumer recycled materials (PCR materials) and pre-consumer recycled materials. Post-consumer recycled materials (PCR materials) are materials obtained by collecting and reusing plastic products that have reached the market. For example, PCR materials are plastics prepared from waste products that have been cleaned and crushed. The PCR material may be a thermoplastic prepared from industrial plastic waste by a processor other than the first processor. Pre-consumer recycled materials are materials obtained by collecting and reusing plastic waste generated during the manufacturing process before reaching the market. For example, pre-consumer recycled materials are thermoplastics made from scraps or defective molded products reprocessed by the same factory after processes such as molding and extrusion in a processing factory. In this embodiment, the recycled plastic material may be a PCR material, a pre-consumer recycled material, or a mixture thereof.

[0021] In this embodiment, after determining whether the recycled plastic material is suitable for use based on the size of the contaminants, the recycled plastic material can be used. For example, a thin sample plate is formed, and when the size of the contaminants on the plate surface is less than a predetermined value, the material is determined to be a suitable recycled plastic material. For example, assume that the predetermined value is 1 mm 2 . It should be noted that this value is an example, and the predetermined value is not limited thereto.

[0022] Figure 1 is a perspective view of an inkjet printing device 100, which is a liquid ejection device using the liquid supply system in this embodiment. In Figure 1In this case, the inkjet printing apparatus 100 is configured to eject ink from the print head 104 onto the print medium S based on image data and print an image (including characters, symbols, etc.). The print head 104 is mounted on the carriage 102. During the printing operation, the print medium S is conveyed in the conveyance direction (sub-scanning direction) indicated by the arrow A by the conveyance roller 103, and the carriage 102 reciprocates in the direction (main scanning direction) indicated by the arrow B that intersects the sub-scanning direction. The print head 104 is driven based on the image data in synchronization with the movement of the carriage 102, whereby ink is ejected from the print head 104 onto the print medium S. The print medium S is conveyed by the conveyance roller 107 at a predetermined pitch. The entire print medium is printed by alternately repeating conveyance and printing corresponding to one line at the predetermined pitch. As the print medium S, various materials described above can be used, and generally, a sheet such as printing paper or a plastic sheet is used.

[0023] The ejection surface of the print head 104 facing the print medium S has an ejection opening array formed by a plurality of ejection openings arranged in series in the sub-scanning direction. A plurality of ejection opening arrays are provided corresponding to the number of types of ink used. In color printing or grayscale printing, a desired image is formed by ejecting different types of ink from each ejection opening array. The ink supply unit 105, from which a plurality of ink cartridges 1 corresponding to various ink colors are detachably mounted, supplies ink to the print head 104 through an ink supply path 106 such as a tube. Although Figure 1 an example in which four ink cartridges 1 are installed is shown, the example of the installed ink cartridges 1 is not limited thereto, and the number of colors can be three or less, five or more, or one. In addition, the ink cartridge 1 can be configured to store a liquid other than ink.

[0024] The inkjet printing apparatus 100 of the present embodiment is a so-called serial scanning type printer. As described above, the print head 104 scans in the X direction (main scanning direction) orthogonal to the Y direction (conveyance direction) in which the print medium S is conveyed to print an image. However, the inkjet printing apparatus can be an apparatus having a so-called line type print head in which the ejection openings extend in the width direction (X direction) of the print medium S.

[0025] Figure 2 is a perspective view showing the ink cartridge 1 according to the present embodiment. The ink cartridge 1 as a liquid storage container stores pigment ink (such as black, cyan, magenta, or yellow) of a color that conforms to the configuration of the printing apparatus as a liquid. The ink cartridge 1 includes a cartridge housing 4 and a cartridge lid 5. Figure 2 The state in which the cartridge lid 5 is attached to the ink cartridge 1 is shown. The cartridge housing 4 of the ink cartridge 1 is formed by injection blow molding or the like using a raw material resin such as a polypropylene material (PP material) or a polyethylene material (PE material). The constituent elements of the ink cartridge 1 are assembled by techniques such as ultrasonic welding, thermal welding, adhesion, or fitting.

[0026] The can outer shell 4 is directly used as an ink storage unit. The ink cartridge 1 of this embodiment has an ink storage capacity of approximately 300 ml. The can outer shell 4 has a substantially rectangular prism shape. In the can outer shell 4, Figure 1 the shown surface (the surface on the -X direction side; hereinafter referred to as the front surface) and the surface opposite thereto (the surface on the +X direction side; hereinafter defined as the back surface) have the largest area in the rectangular prism shape. The ink cartridge 1 of this embodiment is configured to be attached to and detachable from a fixed position (not shown) in the inkjet printing apparatus 100.

[0027] The can lid 5 has an opening 9 (see Figure 3 described later), and a connection port 6 to the inkjet printing apparatus 100 is provided in the opening 9. When the ink cartridge 1 is mounted on the inkjet printing apparatus 100, the ink stored in the ink cartridge 1 is supplied to the inkjet printing apparatus 100 through the connection port 6. That is, the ink cartridge 1 has a supply unit (connection port 6) for supplying the stored liquid.

[0028] The can lid 5 has a function of protecting functional parts such as the connection port 6 from external impacts. That is, the can lid 5 is a protective member for protecting the ink cartridge 1. The side of the can lid 5 where the connection port 6 to the inkjet printing apparatus 100 is provided (the side shown by the dotted line; the +Z direction side) is referred to as the first end side 7 (end side) of the can lid 5. On the other hand, the can outer shell 4 side of the can lid 5 (the storage unit side opposite to the first end side 7; the -Z direction side) is also referred to as the second end side 8 (opposite end side). When the can lid 5 is mounted on the ink cartridge 1, the first end side 7 (end side) of the can lid 5 protrudes compared to other parts. Therefore, for example, when the user accidentally drops the ink cartridge 1 and the first end side 7 is directly impacted, the protruding part may have a notch or crack.

[0029] Figure 3 and Figure 4 are perspective views of the can lid 5. Figure 3 is a perspective view of the entire ink cartridge 1 seen from the end side (i.e., the first end side 7). Figure 4 is a perspective view seen from the can outer shell 4 side (i.e., the second end side 8). The can lid 5 has an opening 9, and the connection port 6 is provided in the opening 9.

[0030] The can lid 5 contains a recycled plastic material or a resin material obtained by mixing recycled plastic materials. The can lid 5 of this embodiment is formed using a PCR material obtained by recycling PE materials, PP materials, etc. However, the material is not limited thereto and may be another resin material or a plurality of materials. That is, a PP material, a PE material, or a mixture of different materials can be used as the recycled plastic material. As the physical property value of the PCR material for the can lid 5 of this embodiment, the Charpy impact value of the PE material is about 4 kJ / m 2 and about 9 kJ / m 2Between them, the MFR value is between about 8 g / 10 min and about 13 g / 10 min, and the flexural modulus is between about 700 MPa and about 1200 MPa. The Charpy impact value of the original material is between about 3 kJ / m 2 and about 4 kJ / m 2 Between. Although the Charpy impact value of the PCR material may generally be less than that of the original material, as shown in this embodiment, preferably the Charpy impact value of the PCR material is greater than that of the original material. The Charpy impact value of the PP material is 5 kJ / m 2 Or greater, the MFR value is between about 35 g / 10 min and about 40 g / 10 min, and the flexural modulus is 1000 MPa or greater.

[0031] In addition, the physical properties of the PCR material may vary depending on the physical properties of its resources and other coloring materials or additives. Therefore, the Charpy impact value of the PCR material used in this embodiment is greater than that of the original material. Furthermore, the Charpy impact value of the PCR material should preferably be greater than that of the original material, but it does not necessarily have to be greater than that of the original material.

[0032] Figure 5 Is a sectional view showing Figure 3 The V-section of the can lid 5 in. The V-section is a section that extends through the can lid 5 to intersect (orthogonally) with the opening 9 provided with the connection port 6. As Figures 3 to 5 Shown, the can lid 5 includes a first end side 7 and a second end side 8 located on the side of the can outer shell 4 opposite to the first end side 7. As Figure 5 Shown, also in the V-section, the can lid 5 has a side width A at the first end side 7 and a side width B at the second end side 8.

[0033] In Figure 5 In, the dimension of the side width A of the first end side 7 is about 6.0 mm. On the other hand, the dimension of the side width B of the second end side 8 is about 1.2 mm. As described above, the protruding part (the part provided with the opening) of the first end side 7 of the can lid 5 may have nicks or cracks due to dropping. Therefore, in the can lid 5 of this embodiment, the ratio of the dimension of the side width A of the first end side 7 (end side) to the basic thickness of the dimension of the side width B of the second end side 8 (opposite end side) is 5 = A / B.

[0034] By increasing the width of the A dimension beyond the basic thickness, the nicks or cracks caused by dropping can be reduced. The basic thickness is the thickness of the part that occupies most of the molded component. In the can lid 5 of this embodiment, as Figures 3 to 5As shown, the ratio of the second end side 8 is greater than that of the first end side 7. Therefore, the width B dimension on the second end side 8 (opposite end side) is defined as the basic thickness. Here, the energy required for a notch or crack due to impact is proportional to the width and thickness of the molded product. That is, in order to reduce notches or cracks, increasing the width or thickness is considered. On the other hand, simply increasing the thickness of the molded product may lead to the possibility of dimples. In this embodiment, the thickness of the first end side 7 is greater than the basic thickness, and the basic thickness is set to a predetermined thickness so as not to have dimples. By increasing the width of the A dimension beyond the basic thickness, notches or cracks caused by dropping can be reduced.

[0035] In addition, the first end side 7 has an opening 9 in which a connection port 6 is provided. As Figure 3 shown, in addition to Figure 3 the side width obtained in the cross-section V shown, the first end side 7 also has side widths of different sizes. In this embodiment, by setting the ratio of at least one side width A on the first end side 7 to the side width B dimension on the second end side 8, that is, the basic thickness, to 5 = A / B, notches or cracks caused by dropping can be reduced.

[0036] Furthermore, from the perspective of reducing plastic parts, the back surface of the side width A dimension on the first end side 7 may have a weight-reducing hole. Here, in Figure 2 the completed shape of the ink cartridge 1 in Figure 5 , the surface visible from the outside is defined as the front, and the surface not visible from the outside is defined as the back. In

[0037] In addition, although the opening 9 is provided in the first end side 7 of the ink cartridge lid 5 in this embodiment, it is not necessarily required to provide the opening 9. In the completed form of the ink cartridge 1 in which the ink cartridge lid 5 is mounted on the ink cartridge housing 4, as described above, by increasing the width dimension of the first end side 7 beyond the basic thickness of the ink cartridge lid 5, notches or cracks caused by dropping of the ink cartridge lid 5 can be reduced.

[0038] In addition, the above A dimension and B dimension specify the relationship (A / B) between the side width of the first end side 7 and the side width of the second end side 8 in the same cross-section (V cross-section) corresponding to the plane intersecting (orthogonal to) the opening of the first end side 7.

[0039] The A / B ratio in this embodiment can greatly improve the impact strength of the ink cartridge lid 5. In addition, it is known that as long as the PCR material PE has the following physical property values, notches or cracks caused by dropping / impact can be reduced: Charpy impact value is 4 kJ / m 2or higher, the MFR value is between about 1 g / 10 min and about 15 g / 10 min, and the flexural modulus is between about 500 MPa and about 1500 MPa. As is well known, as long as the PCR material PP has the following physical property values, the notches or cracks caused by dropping / impact can be reduced: the Charpy impact value is 3 kJ / m 2 or higher, the MFR value is between about 30 g / 10 min and about 50 g / 10 min, and the flexural modulus is 800 MPa or higher.

[0040] As described above, according to this embodiment, even when the recycled plastic material is used for the liquid storage container, high impact strength can be maintained. Therefore, for example, even when the liquid storage container is accidentally dropped, notches or cracks can be reduced.

[0041] <<Second Embodiment>>

[0042] In the second embodiment, an ink cartridge of a different type from the first embodiment will be described. The recycled plastic material is also used in the ink cartridge described in this embodiment as the liquid storage container.

[0043] Figure 6 is a perspective view of the ink cartridge 10 in this embodiment. The ink cartridge 10 as the liquid storage container stores pigment ink (such as black, cyan, magenta, or yellow) that matches the color of the printing device configuration as the liquid. The ink cartridge 10 includes a cartridge housing 40 and a cartridge cap 50. The cartridge housing 40 directly serves as the ink storage unit. In this embodiment, the ink cartridge 10 has an ink storage capacity of about 700 ml. A small-capacity ink cartridge 10 can also be formed by sharing the cartridge cap 50 and using a small-capacity cartridge housing of about 300 ml.

[0044] The cartridge cap 50 has a connection port 60 to the inkjet printing device 100. The cartridge cap 50 functions to protect functional parts such as the connection port 60 from external impacts. The side of the cartridge cap 50 where the connection port 60 to the inkjet printing device 100 is provided (the side shown by the dotted line; the +Z direction side) is called the first end side 70 (end side) of the cartridge cap 50. On the other hand, the side of the cartridge cap 50 on the cartridge housing 40 side (the opposite side of the first end side 70; the -Z direction side) is also called the second end side 80 (opposite end side). When the cartridge cap 50 is installed on the ink cartridge 10, the first end side 70 (end side) of the cartridge cap 50 protrudes compared to other parts. Therefore, for example, when the user accidentally drops the ink cartridge 10 and the first end side 70 is directly impacted, there may be notches or cracks in the protruding part.

[0045] Figure 7 and Figure 8 is a perspective view of the cartridge cap 50. Figure 7 is a perspective view of the entire ink cartridge 10 seen from the end side (i.e., the first end side 70). Figure 8is a perspective view seen from the side of the can outer shell 40 (i.e., the second end side 80). The can lid 50 contains recycled plastic material or a resin material obtained by mixing recycled plastic materials. The can lid 50 of this embodiment is formed using PCR material obtained by recycling PE material, PP material, etc. The can lid 50 has an opening 90 in which a connection port 60 is provided.

[0046] Figure 9 is a sectional view showing Figure 7 the IX cross-section of the can lid 50. The IX cross-section is a cross-section of the can lid 50 that extends through the opening 90 in which the connection port 60 is provided. Further, the IX cross-section is a plane that intersects (orthogonally) the opening on the first end side 70. In Figure 9 it, the side width A dimension of the first end side 70 (end side) of the can lid 50 is about 4.3 mm. On the other hand, the side width B dimension on the second end side 80 (opposite end side) is about 2.0 mm. As described above, the protruding portion on the first end side 70 of the can lid 50 may have nicks or cracks due to dropping. Therefore, in this embodiment, the ratio of the side width A dimension on the first end side 70 (end side) to the basic thickness which is the side width B dimension on the second end side 80 (opposite end side) is

[0047] 2.15 = A / B.

[0048] By increasing the width of the A dimension beyond the B dimension which is the basic thickness, nicks or cracks caused by dropping can be reduced. Further, regarding the side width A dimension on the first end side 70 (end side), from the viewpoint of reducing plastic parts, the back surface of the width on the first end side 70 may have a weight-reducing hole.

[0049] The A / B ratio in this embodiment can greatly improve the impact strength of the can lid 50. Further, it is known that as long as the PCR material PE has the following physical property values, nicks or cracks caused by dropping / impact can be reduced: Charpy impact value is 4 kJ / m 2 or higher, MFR value is between about 1 g / 10 min and about 15 g / 10 min, and flexural modulus is between about 500 MPa and about 1500 MPa. It is well known that as long as the PCR material PP has the following physical property values, nicks or cracks caused by dropping / impact can be reduced: Charpy impact value is 3 kJ / m 2 or greater, MFR value is between about 30 g / 10 min and about 50 g / 10 min, and flexural modulus is 800 MPa or greater.

[0050] As described above, in this embodiment, even when recycled plastic material is used for the liquid storage container, high impact strength can be maintained. Therefore, for example, even when the liquid storage container is accidentally dropped, nicks or cracks can be reduced.

[0051] <<Third Embodiment>>

[0052] In the third embodiment, an ink tank of a different type from the first embodiment will be described. A recycled plastic material is also used in the ink tank described in this embodiment as a liquid storage container.

[0053] Figure 10 is a perspective view of the ink tank in this embodiment. The ink tank 1000 includes a tank housing 400 and a tank lid 500. The tank lid 500 contains a recycled plastic material or a resin material obtained by mixing recycled plastic materials. The tank lid 500 of this embodiment is formed using a PCR material obtained by recycling PE materials, PP materials, etc. The tank housing 400 directly serves as an ink storage unit. In this embodiment, the ink storage capacity is approximately 700 ml. The tank lid 500 functions to protect functional parts such as the connection port 600 of the inkjet printing device 100 provided on the longer side of the tank housing 400 from external impacts. In particular, compared with other parts, the first end side 700 (end side) of the tank lid 500 shown by the dashed line protrudes. Therefore, in the case where the user accidentally drops the ink tank 1000 and the first end side 700 is directly impacted, there may be nicks or cracks on the protruding part.

[0054] In this embodiment, the side width A dimension on the first end side (end side) of the tank lid 500 is approximately 5.0 mm. On the other hand, the side width B dimension (not shown) on the second end side (opposite end side) is approximately 1.0 mm. The protruding part of the first end side 700 of the tank lid 500 may have nicks or cracks due to dropping. Therefore, in this embodiment, the ratio of the side width A dimension on the first end side (end side) to the basic thickness which is the side width B dimension on the second end side (opposite end side) is

[0055] 5.0 = A / B.

[0056] By increasing the width of the A dimension beyond the basic thickness, the nicks or cracks caused by dropping can be reduced. This A / B ratio can greatly improve the impact strength of the tank lid 500.

[0057] <<Other Embodiments>>

[0058] In the above embodiments, the entire ink tank is configured such that the width dimension of the first end side (end side) where the tank lid is installed is greater than the width dimension which is the basic thickness of the second end side (opposite end side) of the tank lid. In addition, in the case where the ratio of the width A dimension of the end side to the width B dimension of the opposite end side is equal to or greater than a predetermined value, the tank lid may not be able to perform its main function. Therefore, preferably, the ratio of the width A dimension of the first end side (end side) to the basic thickness which is the width B dimension of the second end side (opposite end side) is

[0059] A / B < 7.

[0060] In addition, as described in the above embodiments, since it is preferable to increase the ratio of the width A dimension of the first end side (end side) to the basic thickness which is the width B dimension of the second end side (opposite end side), it is preferable that

[0061] 1 < A / B < 7.

[0062] Summarizing the above embodiments, it is preferable that the side width A of the can lid on the first end side is between 4.3 mm and 6.0 mm.

[0063] In the above embodiments, even when a recycled plastic material is used for the liquid storage container, high impact strength can be maintained. Therefore, for example, even when the liquid storage container is accidentally dropped, notches or cracks can be reduced. Using a recycled plastic material for the liquid storage container can reduce the amount of raw materials used, and thus has the potential to contribute to the realization of a sustainable society, such as a decarbonized society / circular society. That is, the technology described in this specification has the potential to contribute to the realization of a sustainable society (such as a decarbonized society / circular society).

[0064] Although the present disclosure has been described with reference to exemplary embodiments, it should be understood that the present disclosure is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation to cover all such modifications and equivalent structures and functions.

Claims

1. A liquid storage container, comprising a storage unit configured to store liquid, a supply unit configured to supply the liquid stored in the storage unit to the outside, and a protection member configured to protect the supply unit, in, The protective member comprises a recycled plastic material or a resin material obtained by mixing recycled plastic materials, and The protective member has a portion such that when the protective member is attached to the supply unit, a relationship between a side width A of the protective member on a first end side and a side width B of the protective member on a side of the storage unit opposite to the first end side satisfies: 1 2. The liquid storage container according to claim 1, wherein The first end side of the protection member includes an opening in which the supply unit is disposed, and The protection member has a portion in which the relationship between the side width A and the side width B in the same cross section corresponding to the plane intersecting the opening satisfies 1. The recycled plastic material is polyethylene material. The MFR value of the recycled plastic material is comprised between 1 g / 10 min and 15 g / 10 min.

3. The liquid storage container according to claim 1 or 2, wherein: The flexural modulus of the recycled plastic material is comprised between 500 MPa and 1500 MPa.

4. The liquid storage container according to claim 3, wherein: The Charpy impact value of the recycled plastic material is 4 kJ / m 2 or larger.

5. The liquid storage container according to claim 3, wherein: The recycled plastic material is polypropylene material.

6. The liquid storage container according to claim 3, wherein: The MFR value of the recycled plastic material is comprised between 30 g / 10 min and 50 g / 10 min.

7. The liquid storage container according to claim 1 or 2, wherein: The recycled plastic material has a flexural modulus of 800 MPa or more.

8. The liquid storage container according to claim 7, wherein: The Charpy impact value of the recycled plastic material is 3 kJ / m 2 or larger.

9. The liquid storage container according to claim 7, wherein: A side width A of the protective component at the first end side is comprised between 4.3 mm and 6.0 mm.

10. The liquid storage container according to claim 7, wherein: The recycled plastic material is post-consumer recycled material.

11. The liquid storage container according to claim 1 or 2, wherein: The recycled plastic material is pre-consumer recycled material.

12. The liquid storage container according to claim 1 or 2, wherein: ​ 13. The liquid storage container according to claim 1 or 2, wherein: ​

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