Combined accessory of film sealing bottle and piercing cap as well as application and use method of combined accessory

Abstract

The invention provides a combined accessory of a film sealing bottle and a piercing cap and application and a using method of the combined accessory. In the combined accessory, the film sealing bottle comprises a bottle body, a bottle opening, a sealing film and a first connecting part; the piercing cover comprises a cover top wall, a cover side wall, a piercing needle, a liquid guide through hole and a second connecting part; the contact angle (theta in-theta out) of the sealing film is greater than or equal to 15 degrees; the puncturing needle is arranged on the cover top wall towards the opening direction of the puncturing cover; the liquid guide through hole is formed in the cover top wall and / or the pricking needle; and the piercing cover and the film sealing bottle can rotate relatively and are connected through the first connecting part and the second connecting part. By means of the combined accessory, a consumer can use liquid such as essence on the beauty equipment more conveniently; the effect that liquid flows out smoothly and quickly can be well achieved for sealing films with different puncture strengths and liquid with different surface tensions; in addition, the piercing cover in the combined accessory can be independently used for multiple times.

Description

Technical Field

[0001] The present application relates to the field of packaging technology, and in particular to a combination accessory of a film-sealed bottle and a piercing cap, and an application and use method thereof. Background Art

[0002] Currently, some home beauty devices (such as spray-type beauty devices) widely use a disposable bottle method for adding beauty ingredients. During use, consumers must unscrew or peel off the seal of the disposable bottle to allow the essence to flow into the device's reservoir. This is a complex addition process, requiring two hands to open the bottle. This inconvenient opening method can also lead to spillage of the liquid (such as essence) in the bottle. This method fails to meet consumers' needs for simple, single-handed operation when applying makeup.

[0003] In order to make it more convenient for consumers to use essence on beauty devices, the inventors of this application have attempted to solve the problems of complicated operation and essence leakage by puncturing the sealing film of the disposable bottle mouth through the puncture cover and allowing the essence in the disposable bottle to flow out through the through hole on the puncture cover without removing the puncture cover. However, the premise for the implementation of such a method is that: (1) the puncture strength of the sealing film is relatively low, and it is easy to crack a large opening when punctured; (2) the surface tension of the liquid in the disposable bottle is relatively low. However, the sealing film with low puncture strength is very easy to break during transportation or storage, and the liquid with low surface tension is limited in its application scenarios due to its shortcomings such as easy foaming and easy damage to the skin.

[0004] The technical problems to be solved by the present invention are how to ensure the puncture strength of the sealing film (such as the puncture strength of the sealing film reaches above 5N / mm) and how to make the liquid flow out smoothly and quickly when using liquids with higher surface tension (such as liquid surface tension above 40mN / m). Summary of the Invention

[0005] After in-depth research, the inventors of the present application found that the above technical problems can be solved by changing the structure of the puncture needle on the piercing cover and the contact angle between the inner and outer surfaces of the sealing film and the liquid.

[0006] Specifically, the present application provides a combination accessory of a film-sealed bottle and a piercing cap, an application of the combination accessory, and a method of using the combination accessory. The technical solution of the present application is as follows:

[0007] 1. A combination accessory of a sealed bottle and a piercing cap, wherein:

[0008] The film-sealed bottle comprises: a bottle body, a bottle mouth, a sealing film arranged on the bottle mouth, and a first connecting portion arranged outside the bottle mouth;

[0009] The piercing cover comprises: a cover top wall, a cover side wall, a puncture needle, a liquid conducting through hole and a second connecting portion arranged on the inner side of the cover side wall;

[0010] The sealing film of the sealing bottle has a first contact angle θ on the surface facing the inside of the bottle. in , the surface facing the outside of the bottle has a second contact angle θ out , where (θ in -θ out )≥15°;

[0011] The puncture needle is arranged on the top wall of the cover toward the opening of the puncture cover;

[0012] The liquid conducting through hole is provided on the top wall of the cover and / or the puncture needle;

[0013] When the bottle mouth of the film-sealed bottle is located in the cover body of the piercing cover, the piercing cover and the film-sealed bottle can be relatively rotated and fixedly connected through the first connecting portion and the second connecting portion;

[0014] The hydraulic diameter of the maximum flow cross section formed by the puncture needle piercing the sealing film is ≥0.3mm.

[0015] 2. The assembly according to item 1, wherein 105°≤θ in ≤135°; preferably, 80°≤θ out ≤120°.

[0016] 3. The assembly according to item 1, wherein any cross section of the needle perpendicular to its height direction is a polygon of the same shape, and the shape parameter of the polygon is P=N 2 / M, and 2≤P<3, where M represents the number of edges of the polygon, and N represents the number of convex vertices of the polygon.

[0017] 4. The combination accessory according to item 3, wherein:

[0018] The inner angle corresponding to the concave vertex of the polygon is 210° to 330°; and / or,

[0019] The deviation between the length of any side of the polygon and the average value of the lengths of all sides does not exceed ±20%.

[0020] 5. The assembly according to item 3, wherein 2<N<6.

[0021] 6. The combination accessory according to item 3, wherein 4≤M≤10.

[0022] 7. The combination accessory according to item 1, wherein one of the first connecting portion and the second connecting portion includes a rotation protrusion, and the other includes a rotation groove.

[0023] 8. The assembly according to item 1, wherein the puncture strength of the sealing film is greater than 5 N / mm.

[0024] 9. Use of the combination accessory according to any one of items 1 to 8 for containing and discharging liquid, wherein the surface tension of the liquid is less than or equal to 70 mN / m.

[0025] 10. A method for using the assembly accessory according to any one of items 1 to 8, comprising:

[0026] Connecting the bottle mouth of the film-sealed bottle in the assembly to the inner portion of the cover body of the piercing cover;

[0027] The film-sealed bottle and the piercing cap are made to rotate relative to each other along the circumferential direction of the bottle mouth / the side wall of the piercing cap.

[0028] The combination of the film-sealed bottle and the piercing cap allows consumers to use liquids such as essences on beauty devices more conveniently (e.g., one-handed operation, simple operation, and avoidance of liquid spillage).

[0029] Furthermore, the combination accessory provided by the present application can effectively achieve the effect of smooth and rapid liquid outflow for sealing films with different puncture strengths and liquids with different surface tensions, thus having a wider range of application scenarios;

[0030] Furthermore, the piercing cover in the combination accessory provided by the present application can be used independently multiple times, saving packaging costs and being more environmentally friendly.

[0031] The above description is only an overview of the technical solution of the present application. In order to make the technical means of the present application clearer and easier to understand, so that those skilled in the art can implement it according to the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are illustrated below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1a : A bottom view of piercing the cover in one embodiment;

[0033] Figure 1b : A schematic side view of piercing the cover in one embodiment;

[0034] Figure 2a : A bottom view of piercing the cover in another embodiment;

[0035] Figure 2b : A schematic side view of piercing the cover in another embodiment;

[0036] Figure 3a: A bottom view of the piercing cover in the third embodiment;

[0037] Figure 3b : A schematic side view of piercing the cover in a third embodiment;

[0038] Figure 4a : A bottom view of the cover being pierced in a fourth embodiment;

[0039] Figure 4b : A schematic side view of piercing the cover in a fourth embodiment;

[0040] Figure 5a : A bottom view of a pierced cover in a comparative embodiment;

[0041] Figure 5b : A schematic side view of a pierced cover in a comparative embodiment;

[0042] Figure 6a : A bottom view of piercing the cover in another comparative embodiment;

[0043] Figure 6b : A schematic side view of a pierced cover in another comparative embodiment;

[0044] Figure 7a : A bottom view of the piercing cover in the third comparative embodiment;

[0045] Figure 7b : A schematic side view of a pierced cover in a third comparative embodiment;

[0046] Figure 8a : A bottom view of the pierced cover in the fourth comparative embodiment;

[0047] Figure 8b : A schematic side view of piercing the cover in a fourth comparative embodiment;

[0048] Figure 9a : A bottom view of the pierced cover in the fifth comparative embodiment;

[0049] Figure 9b : A schematic side view of the piercing cover in a fifth comparative embodiment;

[0050] Figure 10a : A bottom view of the piercing cover in a sixth comparative embodiment;

[0051] Figure 10b : A schematic side view of the piercing cover in a sixth comparative embodiment;

[0052] Figure 11 : A schematic side view of a sealed bottle in one embodiment.

[0053] Description of reference numerals:

[0054] 010, needle; 020, liquid conducting hole; 030, rotating protrusion; 040, cover top wall; 050, cover side wall;

[0055] 110. Bottle mouth; 120. Rotation groove; 130. Bottle body; 140. Sealing film; 150. Connecting groove. DETAILED DESCRIPTION

[0056] The following embodiments of the present application are intended only to illustrate specific implementation methods for implementing the present application and are not to be construed as limiting the present application. Any other changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principles of the present application are deemed equivalent replacements and fall within the scope of protection of the present application.

[0057] Those skilled in the art should understand that, in the disclosure of this application, the terms "first", "second", "third", "fourth", "fifth", etc. are only used to distinguish different structures, and do not limit the number, connection relationship, etc. of specific structures; in addition, the directions or positional relationships indicated by "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms cannot be understood as limiting this application.

[0058] In this application, the "contact angle" (the first contact angle θ in , the second contact angle θ out ) refers to the contact angle of a surface relative to water. In this application, the specific measurement method is to fix the sample to be tested horizontally on the microscope stage and rotate the microscope lens 90 degrees (from a vertical angle to a horizontal angle). The side cross-section of the sample can be observed and photographed. 0.2 ml of pure water is slowly placed on the sample surface using a gas chromatography injection needle. The microscope focus is adjusted and the state of the droplet after reaching equilibrium on the sample is photographed. Contact angle graph analysis software automatically generates a tangent line at the contact point between the droplet and the sample to obtain the contact angle value.

[0059] In this application, a "convex vertex" refers to a vertex in a polygon at which the internal angle is less than 180°; correspondingly, a "concave vertex" refers to a vertex in a polygon at which the internal angle is greater than 180°.

[0060] In this application, the “puncture strength” of the sealing film refers to the puncture strength tested according to ASTM D5748.

[0061] In the present application, the "cross section" of the needle refers to a cross section perpendicular to its height direction.

[0062] In this application, the distance between the two points with the largest spacing on the edge of each cross section of the needle perpendicular to its height direction is the width of the cross section. In this application, the "maximum width" of the needle refers to the maximum value among the widths of all cross sections.

[0063] In the present application, regarding “diameter”, unless otherwise explicitly stated, “diameter” refers to the diameter of an area-equivalent circle, that is, the diameter of a circle with the same area.

[0064] In this application, the deviation between the length of any side of the polygon and the average value of the lengths of all sides refers to the percentage of the difference between the length of any side of the polygon and the average value of the lengths of all sides to the average value of the lengths of all sides, that is, deviation = (difference between the length of any side of the polygon and the average value of the lengths of all sides) / average value of the lengths of all sides * 100%.

[0065] In this application, "hydraulic diameter" refers to four times the ratio of the area of ​​the flow section to the perimeter, wherein the "flow section" refers to the section formed between the inner contour of the rupture of the sealing film and the outer contour of the needle.

[0066] This embodiment provides a combination of a sealed bottle and a piercing cap, such as Figure 1a to Figure 4b 、 Figure 11 As shown,

[0067] The film-sealed bottle comprises: a bottle body 130, a bottle mouth 110, a sealing film 140 arranged on the bottle mouth 110, and a first connecting portion arranged outside the bottle mouth 110;

[0068] The piercing cover includes: a cover top wall 040, a cover side wall 050, a puncture needle 010, a liquid conducting hole 020 and a second connecting portion provided on the inner side of the cover side wall 050;

[0069] The sealing film of the sealing bottle has a first contact angle θ on the surface facing the inside of the bottle. in , the surface facing the outside of the bottle has a second contact angle θ out , where (θ in -θ out )≥15°;

[0070] The puncture needle 010 is arranged on the top wall 040 of the cover toward the opening of the puncture cover;

[0071] The liquid conducting through hole 020 is formed on the top wall 040 of the cover and / or the puncture needle 010 so that the liquid in the sealed bottle can be conducted out through the liquid conducting through hole piercing the cover.

[0072] When the bottle mouth 110 of the film-sealed bottle is located in the cover body of the piercing cover, the piercing cover and the film-sealed bottle can be relatively rotated and fixedly connected through the first connecting portion and the second connecting portion;

[0073] The hydraulic diameter of the maximum flow cross section formed by the needle 010 piercing the sealing film 140

[0074] ≥0.3mm.

[0075] In this application, "maximum flow cross section" refers to the flow cross section with the largest area when multiple flow cross sections are formed between the inner contour of the sealing film rupture and the outer contour of the needle. Figure 1a-1b 、 Figure 2a-2b When adopting the above schemes, multiple flow sections that allow liquid to flow out may be formed, and the "largest flow section" refers to the flow section with the largest area.

[0076] The hydraulic diameter of the flow section can be measured using conventional methods in the field. In some specific embodiments, the maximum hydraulic diameter of the flow section can be measured as follows: take a microscope photo of the flow section, take a largest flow section, and calculate the size of each pixel based on the scale in the image or a reference object of known size, thereby calculating the total area A of the flow section and the circumference P of the flow section. The hydraulic diameter D of the flow section = 4*A / P.

[0077] Through the combination of the above-mentioned sealed bottle and the piercing cap provided by the present application, when in use, the bottle mouth of the sealed bottle is inserted into the cover body of the piercing cap or the piercing cap is pressed onto the bottle mouth of the sealed bottle, and the puncture needle 010 pierces the sealing film 140, and a rupture close to the outer contour of the puncture needle 010 can be formed on the sealing film 140; thereafter, the sealed bottle and the piercing cap are rotated relative to each other, so that the puncture needle 010 can further expand the above-mentioned rupture to allow the liquid in the sealed bottle to flow out from the liquid guiding hole 020.

[0078] Liquids with high surface tension will spread and adhere more easily when they come into contact with a solid surface. Therefore, when a sealed bottle contains liquids with high surface tension, it is difficult for the liquid to flow out. At the same time, a sealing film with high puncture strength is difficult to puncture. Therefore, when the puncture strength of the sealing film is high, the liquid contained in the sealed bottle is also difficult to flow out. In order to solve this problem and enable the liquid in the sealed bottle to flow out smoothly from the liquid-conducting through hole 020, the applicant further conducted a large number of experimental studies (such as the following examples, which show some important research processes). It was found that the contact angles on both sides of the sealing film are important influencing factors. Specifically, when (θ in -θ out) ≥ 15°, the liquid in the sealed bottle can flow out smoothly from the liquid-guiding through hole 020. The larger the gap formed by the needle piercing the sealing film, the easier it is to drain the liquid. When the hydraulic diameter of the maximum flow cross-section formed by the needle piercing the sealing film is ≥ 0.3mm, the liquid in the sealed bottle can flow out smoothly from the liquid-guiding through hole 020.

[0079] In some specific embodiments, the hydraulic diameter of the maximum flow section can be 0.30mm, 0.32mm, 0.34mm, 0.36mm, 0.38mm, 0.40mm, 0.42mm, 0.44mm, 0.46mm, 0.48mm, 0.50mm, 0.52mm, 0.54mm, 0.56mm, 0.58mm, 0.60mm, 0.62mm, 0.64mm, 0.66mm, 0.68mm, 0.70mm, 0.72mm, 0.74mm, 0.76mm, 0.77mm, 0.78mm, 0.79mm, 0.80mm, 0.81mm, 0.82mm, 0.83mm, 0.84mm, 0.86mm, 0.87mm, 0.88mm, 0.89mm, 0.90mm, 0.91mm, 0.92mm, 0.93mm, 0.94mm, 0.95mm, 0.96mm, 0.97mm, 0.98mm, 0.99mm, 0.99mm, 0.91mm, 0.91mm, 0.99mm, 0.91mm, 0.91mm, 0.92mm, 0.93mm, 0.94mm, 0.96mm, 0.98mm, 0.99mm, 0.91mm, 0.99mm, 0.91mm, 0.99mm, 6mm, 0.78mm, 0.80mm, 0.82mm, 0.84mm, 0.86mm, 0.88mm, 0.90m, 0.92mm, 0.94mm, 0.96mm, 0.98mm, 1.00mm, 1.10mm, 1.20mm, 1.30mm, 1.40mm, 1.50mm, 1.60mm, 1.70mm, 1.80mm, 1.90mm, 2.00mm, 2.50mm, 3.00mm and the like, preferably 0.30mm to 3.00mm.

[0080] In some specific embodiments, any cross section of the needle 010 perpendicular to its height direction is a polygon of the same shape, and the shape parameter of the polygon is P=N 2 / M, and 2≤P<3, where M represents the number of edges of the polygon, and N represents the number of convex vertices of the polygon.

[0081] A sealing film with a higher puncture strength refers to a sealing film with a puncture strength of 5 N / mm or more. For example, the puncture strength can be 5 N / mm, 10 N / mm, 15 N / mm, 20 N / mm, 25 N / mm, 30 N / mm, etc.

[0082] A liquid with a high surface tension refers to a liquid with a surface tension of 40 mN / m or more. For example, the surface tension can be 40 mN / m, 41 mN / m, 42 mN / m, 43 mN / m, 44 mN / m, 45 mN / m, 46 mN / m, 47 mN / m, 48 mN / m, 49 mN / m, 50 mN / m, 51 mN / m, 52 mN / m, 53 mN / m, 54mN / m, 55mN / m, 56mN / m, 57mN / m, 58mN / m, 59mN / m, 60mN / m, 61mN / m, 62mN / m, 63mN / m, 64mN / m, 65mN / m, 66mN / m, 67mN / m, 68mN / m, 69mN / m, 70mN / m, preferably 40mN / m~70mN / m.

[0083] By applying the solution of the present application, when facing a sealing film with a higher puncture strength and a liquid with a higher surface tension, the liquid can also flow out smoothly and quickly. Therefore, when using a sealing film with a lower puncture strength or a liquid with a lower surface tension, the liquid can also flow out smoothly and quickly. Therefore, the solution provided by the present application can well achieve the effect of liquid flowing out smoothly and quickly for sealing films with different puncture strengths and liquids with different surface tensions, and has a wider range of application scenarios. For example, the surface tension of the liquid can be above 40mN / m, or it can be less than 40mN / m, such as 35mN / m, 30mN / m, 25mN / m, 20mN / m, etc.; the puncture strength of the sealing film can be above 5N / mm, or it can be less than 5N / mm, such as 4.5N / mm, 4N / mm, 3.5N / mm, 3N / mm, etc.

[0084] About θ in The size is preferably 105°≤θ in ≤135° (for example, it can be 105°, 110°, 115°, 120°, 125°, 130°, 132°, 135°); about θ out The size is preferably 80°≤θ out ≤120° (for example, it can be 81°, 85°, 90°, 95°, 100°, 105°, 110°, 115°, 117°, or 120°).

[0085] The number N of the convex vertices of the polygon is preferably an integer between 2<N<6, and can be specifically 3, 4, or 5.

[0086] The number of sides M of the polygon is preferably an integer between 4≤M≤10, and specifically can be 4, 6, 8, or 10.

[0087] Regarding "the piercing cap and the film-sealed bottle can rotate relative to each other and be fixedly connected via the first connecting portion and the second connecting portion", optionally, one of the first connecting portion and the second connecting portion includes a rotating protrusion 030, and the other includes a rotating groove 120. When the rotating protrusion is located in the rotating groove, the aforementioned relative movement occurs and the rotating protrusion and the rotating groove are engaged.

[0088] Specifically, in this embodiment, one of the inner side of the cover side wall 050 and the outer side of the bottle mouth 110 is provided with a rotation protrusion 030 ( Figure 1a to Figure 4b The rotation protrusion is provided on the inner side of the cover side wall 050), and the other is provided with a rotation groove 120 along its circumference ( Figure 11 The rotation groove is shown as being disposed on the outside of the bottle mouth 110), so that when the bottle mouth is located within the body of the piercing cap, the piercing cap and the film-sealed bottle can rotate relative to each other along the circumference of the bottle mouth / the sidewall of the piercing cap, causing the rotation protrusion to engage with the rotation groove. Preferably, the length of the rotation groove is greater than the length of the rotation protrusion, so that the rotation protrusion can rotate and be fixed in the rotation groove. Preferably, there are two or more rotation protrusions; more preferably, two or more rotation protrusions are evenly disposed on the inside of the sidewall of the cap or on the outside of the bottle mouth, ensuring stable connection and rotation between the film-sealed bottle and the piercing cap.

[0089] Generally, at least one of the film-sealed bottle and the piercing cap is made of a material with a certain elasticity, such as a polymer material. Therefore, only a slight force is required to directly insert the rotating protrusion into the rotating groove. However, in order to facilitate use by people with less strength, or to facilitate the application of the present application scheme to film-sealed bottles and piercing caps made of harder materials (such as metal materials, non-metallic materials (such as glass, etc.)), preferably, a connecting groove 150 is also provided on the side including the rotating groove (see Figure 11 ), the connecting groove extends from the opening of the sealing bottle / piercing cover to the rotating groove, so that the rotating protrusion can extend into the rotating groove for rotation.

[0090] In order to facilitate one-handed operation and reduce the force that causes the piercing cap and the film-sealed bottle to rotate relative to each other, the puncture needle is preferably arranged at the center of the cap top wall.

[0091] In order to facilitate the smooth outflow of liquid from the liquid-conducting through-holes, the number of liquid-conducting through-holes is preferably 2 or more (eg 2, 3, 4 or more).

[0092] As mentioned above, the specific location of the liquid-conducting hole can be located on the needle 010 or on the lid top wall 040. To facilitate manufacturing and ensure the mechanical strength of the needle, the liquid-conducting hole is preferably located on the lid top wall 040. More preferably, the liquid-conducting hole is located near the concave apex of the needle 010. This allows the liquid-conducting hole to be exposed after the puncture cap and the film-sealed bottle rotate relative to each other, thereby facilitating the smooth flow of liquid from the film-sealed bottle through the liquid-conducting hole 020.

[0093] Regarding the cross-sectional shape of the needle perpendicular to its height direction, the cross-sectional shape is a polygon. Preferably, the inner angle corresponding to the concave vertex of the polygon is 210° to 330°; for example, the inner angle corresponding to the concave vertex of the polygon can be 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, 310°, 320°, 330°, etc.

[0094] Preferably, the deviation of the length of any side of the polygon from the average of the lengths of all sides does not exceed ±20%.For example, the deviation can be 20%, 15%, 10%, 5%, 0, -5%, -10%, -15%, -20%, etc.

[0095] In order to ensure that the sealing film can be pierced with less effort and to facilitate one-handed operation, the cross-sectional area of ​​the puncture needle is preferably gradually reduced from the top wall of the cover to the direction of piercing the cover opening.

[0096] To ensure effective destruction of the sealing film, the maximum width of the needle is preferably 50% to 99% of the inner diameter of the bottle mouth, for example, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 99%, etc. The inner diameter of the bottle mouth can be 8 to 15 mm.

[0097] Regarding the specific cross-sectional shape of the needle 010 perpendicular to its height direction, it is preferably a four-pointed star; a five-pointed star; a hexagon, wherein two opposite vertices are concave vertices; or a quadrilateral, wherein one vertex is a concave vertex.

[0098] In addition, a sealing gasket is provided on the inner surface of the top wall of the cap to ensure that the pierced cap is well sealed after the film-sealed bottle is covered, thereby preventing the liquid from flowing out from an undesigned path. Based on the above solution, those skilled in the art will know that the sealing gasket should not cover or block the liquid-conducting through-hole. Specifically, a corresponding through-hole is provided at the position of the sealing gasket corresponding to the liquid-conducting through-hole. Preferably, the thickness of the sealing gasket is greater than the distance between the bottle mouth and the top wall of the cap when the rotating protrusion is engaged with the rotating groove. Then, while playing a sealing role, a certain pre-tightening force is generated between the film-sealed bottle and the pierced cap to ensure a stable connection between the two.

[0099] The present application also provides the use of the above-mentioned combination accessories in containing and discharging liquids, wherein the surface tension of the liquid is less than or equal to 70 mN / m.

[0100] In addition, based on the above scheme and the experimental steps shown in the following examples, those skilled in the art will know that the present application also provides a method for using the above-mentioned combination accessories, including: connecting the bottle mouth of the film-sealed bottle in the combination accessories with the inside of the cover body of the piercing cover; and making the film-sealed bottle and the piercing cover rotate relative to each other along the circumferential direction of the bottle mouth / the cover side wall of the piercing cover.

[0101] Example

[0102] In order to verify the effects of the rupture of the sealing film and the contact angle of the sealing film on the outflow of liquid, the applicant further conducted the following experiments using the combination of the sealing film bottle and the piercing cap in the above embodiment.

[0103] Experimental steps:

[0104] Step 1: In a 10ml sealed bottle (see Figure 11 ) is filled with 80% of the volume of the solution;

[0105] Step 2: Heat-press seal the bottle mouth of the sealing film;

[0106] Step 3: Press the pierce cap onto the bottle mouth;

[0107] Step 4: Rotate the protrusion to fit into the rotating groove, so that the piercing cap and the film-sealed bottle rotate relative to each other;

[0108] Step 5: Invert the sealed bottle (bottleneck facing downward), observe the solution flowing out of the liquid guide hole (2 mm diameter circular hole) under the action of gravity, and record the time (t) when the liquid completely flows out.

[0109] After the puncture cap and the sealed bottle rotate relative to each other, a flow section is formed between the puncture needle and the sealing film, and the liquid in the bottle flows out from the flow section. The method for measuring the hydraulic diameter of the flow section is as follows:

[0110] Take a microscope photo of the flow section, select the largest flow section, and calculate the size of each pixel according to the scale in the image, so as to calculate the total area A of the flow section and the perimeter P of the flow section. The hydraulic diameter of the flow section D = 4*A / P.

[0111] The experiments in Table 4 (experiments P1 to P8, N1 to N8) were carried out through the above steps, wherein the piercing cap information is shown in Table 1, the sealing film information is shown in Table 2, and the solution information is shown in Table 3.

[0112] Table 1: Pierce Cap Information

[0113]

[0114] Table 2: Sealing film information

[0115] Film sealing port <![CDATA[θ in ]]> <![CDATA[θ out ]]> <![CDATA[θ in -θ out ]]> FM-1 132° 120° 12° FM-2 132° 81° 51° FM-3 132° 117° 15° FM-4 105° 81° 24° FM-5 93° 81° 12°

[0116] Among them, FM1 to FM4 are "PP-aluminum film-PP" composite materials, with a middle layer of 10-micron-thick aluminum film, a 50-micron-thick PP film on the IN side (the surface of the sealing film facing the inside of the bottle), and a 50-micron-thick PP film on the OUT side (the surface of the sealing film facing the outside of the bottle). The puncture strength of FM1 to FM4 is 11N / mm. The target contact angle is achieved by the following treatment:

[0117] The FM1 OUT surface was plasma treated (using DBD oxygen plasma discharge, discharge power of 50W, treatment time of 10 minutes);

[0118] FM2 OUT surface is coated with 0.4% hydrophilic oil;

[0119] FM3 OUT surface is coated with 0.05% hydrophilic oil;

[0120] Apply 0.1% hydrophilic oil to the IN side of FM4 and 0.4% hydrophilic oil to the OUT side.

[0121] FM5 is a "PET-aluminum film-PP" composite material with a middle layer of 10-micron thick aluminum film, a 50-micron thick PET film on the IN side, and a 50-micron thick PP film on the OUT side. It has a puncture strength of 14N / mm, and is coated with 0.1% hydrophilic oil on the IN side and 0.4% hydrophilic oil on the OUT side.

[0122] The hydrophilic oil agent is Covestro oil agent brand 6087-4.

[0123] Table 3: Bottle liquid information

[0124]

[0125] Table 4: Experimental information

[0126]

[0127]

[0128] The above experimental results show that when using a liquid with a high interfacial tension and a sealing film with a high puncture strength, the combination accessories of the present application can ensure that the liquid flows out smoothly and quickly.

[0129] Although the embodiments of the present application are described above, the present application is not limited to the above-mentioned specific embodiments and application fields. The above-mentioned specific embodiments are merely illustrative and instructive, and not restrictive. A person of ordinary skill in the art, guided by this specification and without departing from the scope of protection of the claims of this application, may also devise various forms, all of which fall within the scope of protection claimed in this application.

Claims

1. A combination of a sealed bottle and a piercing cap, wherein: The film-sealed bottle comprises: a bottle body, a bottle mouth, a sealing film arranged on the bottle mouth, and a first connecting portion arranged outside the bottle mouth; The piercing cover comprises: a cover top wall, a cover side wall, a puncture needle, a liquid conducting through hole and a second connecting portion arranged on the inner side of the cover side wall; The sealing film of the sealing bottle has a first contact angle θ on the surface facing the inside of the bottle. in , the surface facing the outside of the bottle has a second contact angle θ out , where (θ in -θ out )≥15°; The puncture needle is arranged on the top wall of the cover toward the opening of the puncture cover; The liquid conducting through hole is provided on the top wall of the cover and / or the puncture needle; When the bottle mouth of the film-sealed bottle is located in the cover body of the piercing cover, the piercing cover and the film-sealed bottle can be relatively rotated and fixedly connected through the first connecting portion and the second connecting portion; The hydraulic diameter of the maximum flow cross section formed by the puncture needle piercing the sealing film is ≥0.3mm.

2. The assembly according to claim 1, wherein: 105°≤θ in ≤135°; preferably, 80°≤θ out ≤120°.

3. The assembly accessory according to claim 1, wherein: Any cross section of the needle perpendicular to its height direction is a polygon of the same shape, and the shape parameter of the polygon is P=N 2 / M, and 2≤P<3, where M represents the number of edges of the polygon, and N represents the number of convex vertices of the polygon.

4. The assembly accessory according to claim 3, wherein: The inner angle corresponding to the concave vertex of the polygon is 210° to 330°; and / or, The deviation between the length of any side of the polygon and the average value of the lengths of all sides does not exceed ±20%.

5. The assembly accessory according to claim 3, wherein: 2＜N＜6。 6. The assembly accessory according to claim 3, wherein: 4≤M≤10。 7. The assembly accessory according to claim 1, wherein: One of the first connection portion and the second connection portion includes a rotation protrusion, and the other includes a rotation groove.

8. The assembly accessory according to claim 1, wherein: The puncture strength of the sealing film is greater than 5N / mm.

9. Use of the combined fitting according to any one of claims 1 to 8 in containing and discharging liquid, wherein: The surface tension of the liquid is less than or equal to 70 mN / m.

10. A method of using the assembly accessory according to any one of claims 1 to 8, wherein: include: Connecting the bottle mouth of the film-sealed bottle in the assembly to the inner portion of the cover body of the piercing cover; The film-sealed bottle and the piercing cap are made to rotate relative to each other along the circumferential direction of the bottle mouth / the side wall of the piercing cap.

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