A triangular multi-surface blister cover made of RPET material

Abstract

The utility model relates to a kind of triangular multi-surface blister cover of RPET material, including blister cover body, heat seal edge, the blister cover body is the hollow structure of one end opening, the heat seal edge is annular plate, the inner edge of heat seal edge is connected with the opening edge of blister cover body;Blister cover body includes two oppositely spaced side vertical planes and the arc curved surface for connecting two side vertical planes, two the side vertical plane and the arc curved surface are respectively connected in the inner edge of heat seal edge, multiple triangular faces are uniformly distributed on the arc curved surface.The triangular multi-surface blister cover of RPET material in the utility model is added color master batch containing pearl pigment to renewable polyester, first extruded into sheet and formed into by blister molding, which has the advantages of high overall rigidity, uniform color performance, good shelf display effect, etc.

Description

Technical Field

[0001] This utility model relates to the field of packaging box technology, and in particular to a triangular multifaceted blister cover made of RPET material. Background Technology

[0002] Packaging is often discarded after use, putting significant pressure on environmental protection. Sustainable packaging development is a key focus of society today. Recycling waste PET bottles not only reduces environmental pollution but also saves resources; therefore, the recycling and regeneration of PET bottles is rapidly expanding with increasing consumption. However, due to the complex and diverse sources of recycled PET, there are varying degrees of color differences. Combined with the effects of processes and impurities during physical recycling, recycled polyester (RPET) is typically darker in color and more difficult to control in terms of color uniformity compared to virgin PET. Furthermore, the properties of recycled PET differ significantly. Hydrolysis and degradation occur during physical recycling, resulting in a more dispersed molecular weight distribution in RPET compared to virgin PET, leading to greater fluctuations in mechanical properties, especially in the low molecular weight fraction, which reduces the material's strength.

[0003] Lip balm, lipstick, and other everyday products are typically sold in plastic boxes. To facilitate product display, common packaging boxes usually consist of a cardboard box and a blister pack sealed to it. These blister packs have a hollow interior; after the lip balm or lipstick is placed inside, it is heat-sealed with the cardboard box. Their outer surface is mostly composed of two side planes and a smooth, rounded center. However, when these blister packs are made of RPET material, the smooth, rounded surface has poor light dispersion due to its continuous smoothness, and its surface color is prone to unevenness, resulting in a relatively poor shelf display effect. Furthermore, the overall rigidity of the smooth, rounded surface is poor, and combined with the inherent unevenness of RPET material's properties, its mechanical properties fluctuate more significantly. In particular, the low molecular weight fraction reduces the material's strength, making it prone to dents, wrinkles, and deformation. Utility Model Content

[0004] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a triangular multifaceted blister cover made of RPET material, which has the advantages of high overall rigidity, uniform color, and good shelf display effect.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A triangular multifaceted blister pack made of RPET material includes a blister pack body and a heat-sealed edge. The blister pack body is a hollow structure with one open end. The heat-sealed edge is annular and its inner edge is connected to the open edge of the blister pack body. The blister pack body includes two relatively spaced side planes and an arc-shaped curved surface for connecting the two side planes. The two side planes and the arc-shaped curved surface are respectively connected to the inner edge of the heat-sealed edge. Multiple triangular faces are evenly distributed on the arc-shaped curved surface.

[0007] In one embodiment, a plurality of vertical ribs are provided on the arc-shaped surface, the plurality of vertical ribs are spaced apart, and the plurality of vertical ribs are all connected to the heat-sealed edge.

[0008] In one embodiment, the arc-shaped surface is provided with a plurality of vertical ribs on both sides of its length direction, and the plurality of vertical ribs are perpendicular to the heat-sealed edge.

[0009] In one implementation, the vertical ribs are of two types. One type consists of four vertical ribs on the side near the side plane along the length of the blister pack, each recessed towards the inside of the curved surface. The recessed portions of the vertical ribs together form a structure for holding the contents in place. The recessed vertical ribs on both sides can hold the contents in place and prevent them from rotating, keeping the pattern or logo of the contents aligned with the transparent viewing window. The other type consists of two vertical ribs on the side near the middle along the length of the blister pack, each protruding towards the outside of the curved surface. The protruding portions of the vertical ribs together form a structure for holding the contents in place. There is a gap between the protruding vertical ribs and the contents, making it easy to remove the contents.

[0010] In one embodiment, a transparent observation window is provided on the arc-shaped surface, and at least two reinforcing ribs are provided between the transparent observation window and the heat-sealed edge.

[0011] In one implementation, the transparent viewing window is polygonal in shape.

[0012] In one implementation, the connection between the two side planes and the arc-shaped surface is made by a circular arc transition.

[0013] In one embodiment, the thermoformed cover is made of recycled polyester plastic material with added masterbatch containing pearlescent pigments, first extruded into sheets, and then thermoformed.

[0014] Compared with traditional technologies, the beneficial effects of the RPET material triangular multifaceted blister pack described in this utility model are:

[0015] This invention utilizes RPET material with added masterbatch containing pearlescent pigments to create a pearlescent visual effect on the curved surface of the blister pack, enhancing its vibrancy. By designing the curved surface into multiple triangular facets, the visual dispersion effect of the blister pack on light is effectively improved, and the pearlescent pigments combine to create a unique glossy color effect, increasing product recognizability and improving shelf display. Furthermore, the curved surface composed of multiple triangular facets and vertical ribs effectively increase the overall rigidity of the blister pack, reducing the impact of the greater mechanical property fluctuations of RPET material compared to virgin PET on the quality of the blister pack. It also helps meet the rigidity requirements after material thinning, aligning with the trend of plastic reduction.

[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of the triangular multifaceted blister cover of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the triangular multifaceted blister cover of this utility model;

[0019] Figure 3 This is the third schematic diagram of the triangular multifaceted blister cover of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 10. Vacuum-formed cover; 11. Side vertical plane; 12. Curved surface; 13. Triangular surface; 14. Vertical rib; 15. Transparent observation window; 16. Reinforcing rib; 20. Heat-sealed edge. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this utility model.

[0024] Please see Figures 1 to 3 This embodiment provides a triangular multifaceted blister cover made of RPET material, including a blister cover body 10 and a heat-sealed edge 20. The blister cover body 10 is a hollow structure with one open end. The heat-sealed edge 20 is annular plate-shaped, and the inner edge of the heat-sealed edge 20 is connected to the open edge of the blister cover body 10. The blister cover body 10 includes two relatively spaced side planes 11 and an arc-shaped curved surface 12 for connecting the two side planes 11. The two side planes 11 and the arc-shaped curved surface 12 are respectively connected to the inner edge of the heat-sealed edge 20. A plurality of triangular faces 13 are evenly distributed on the arc-shaped curved surface 12.

[0025] In this embodiment, the thermoformed cover 10 is made of recycled polyester plastic (RPET) with added masterbatch containing pearlescent pigments, first extruded into a sheet, and then thermoformed. Furthermore, the connections between the two side planes 11 and the curved surface 12 in this embodiment are all rounded.

[0026] Specifically, in this embodiment of the invention, a plurality of vertical ribs 14 are provided on the arc-shaped curved surface 12, the plurality of vertical ribs 14 are spaced apart, and the plurality of vertical ribs 14 are all connected to the heat-sealing edge 20. The arc-shaped curved surface 12 has a plurality of vertical ribs 14 on both sides of its length direction, and the plurality of vertical ribs 14 are perpendicular to the heat-sealing edge 20. In addition, there are two types of vertical ribs 14. One type consists of four vertical ribs 14 on the side near the side plane along the length of the blister cover 10, which are recessed into the inside of the arc-shaped surface 12. The recessed parts of the vertical ribs 14 together form a structure for holding the contents in place. The recessed vertical ribs on both sides can hold the contents in place and prevent them from rotating, keeping the pattern or logo of the contents aligned with the transparent viewing window 15. The other type consists of two vertical ribs on the side near the middle along the length of the blister cover 10, which are protruding outward from the arc-shaped surface 12. The protruding parts of the vertical ribs 14 together form a structure for holding the contents in place. There is a gap between the protruding vertical ribs 14 and the contents, making it easy to remove the contents.

[0027] Furthermore, in this embodiment of the invention, a transparent observation window 15 is provided on the arc-shaped curved surface 12, and at least two reinforcing ribs 16 are provided between the transparent observation window 15 and the heat-sealed edge 20. In this way, the transparent observation window 15 is used to display the logo, patterns, and other information of the contents. When the blister pack 10 is filled with the contents, with the logo, patterns, and other information of the contents facing the transparent observation window 15, the heat-sealing process is used to heat-seal the outer edge 20 of the blister pack 10 to the cardboard, thereby achieving a sealed packaging effect. The transparent observation window 15 is polygonal in shape, such as a regular hexagon; in addition, the shape of the transparent observation window 15 can also be circular, elliptical, or other shapes.

[0028] Compared with traditional technologies, this invention uses recycled polyester plastic (RPET) material with added masterbatch containing pearlescent pigments. It is first extruded into sheets and then vacuum-formed. On the curved surface 12 of the vacuum-formed cover 10, a pearlescent visual effect can be produced, enhancing the vibrancy of the vacuum-formed cover 10. By designing the curved surface 12 into multiple triangular faces 13, the visual dispersion effect of the vacuum-formed cover 10 on light can be effectively improved. Combined with the pearlescent pigments, it presents a unique glossy color effect, increasing the recognizability of the product appearance and improving the shelf display effect. In addition, the curved surface 12 composed of multiple triangular faces 13 and the vertical ribs 14 can effectively increase the overall rigidity of the vacuum-formed cover 10, reducing the impact of the greater fluctuation of the mechanical properties of RPET material compared to virgin PET on the quality of the vacuum-formed cover 10. At the same time, it helps to meet the rigidity requirements after the material thickness is reduced, which is in line with the development trend of plastic reduction.

[0029] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the triangular multifaceted blister cover of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A triangular multifaceted blister pack made of RPET material, characterized in that: The device includes a vacuum-formed cover and a heat-sealed edge. The vacuum-formed cover is a hollow structure with one open end, and the heat-sealed edge is annular. The inner edge of the heat-sealed edge is connected to the open edge of the vacuum-formed cover. The vacuum-formed cover includes two relatively spaced side planes and an arc-shaped curved surface for connecting the two side planes. The two side planes and the arc-shaped curved surface are respectively connected to the inner edge of the heat-sealed edge. Multiple triangular faces are evenly distributed on the arc-shaped curved surface. The triangular multifaceted vacuum-formed cover made of RPET material is made by extruding recycled polyester with masterbatch containing pearlescent pigments, first into sheets and then vacuum forming.

2. The triangular multifaceted vacuum forming cover according to claim 1, characterized in that: The curved surface is provided with a number of vertical ribs, which are spaced apart and are all connected to the heat-sealed edge.

3. The triangular multifaceted blister pack according to claim 2, characterized in that: The arc-shaped surface has several vertical ribs on both sides of its length direction, and the vertical ribs are all perpendicular to the heat-sealed edge.

4. The triangular multifaceted blister pack according to claim 2, characterized in that: There are two types of vertical ribs. One type consists of four vertical ribs on the side near the side plane along the length of the blister pack, which are recessed into the curved surface. The recessed portions of the vertical ribs together form a structure for holding the contents in place. The recessed vertical ribs on both sides can hold the contents in place and prevent them from rotating, keeping the pattern or logo of the contents aligned with the transparent viewing window. The other type consists of two vertical ribs on the side near the middle along the length of the blister pack, which are protruding outward from the curved surface. The protruding portions of the vertical ribs together form a structure for holding the contents in place. There is a gap between the protruding vertical ribs and the contents, making it easy to remove the contents.

5. The triangular multifaceted blister pack according to claim 1, characterized in that: A transparent observation window is provided on the curved surface, and at least two reinforcing ribs are provided between the transparent observation window and the heat-sealed edge.

6. The triangular multifaceted vacuum forming cover according to claim 5, characterized in that: The transparent viewing window is polygonal in shape.

7. The triangular multifaceted blister pack according to claim 1, characterized in that: The connection between the two side planes and the arc-shaped surface is a circular arc transition.

8. The triangular multifaceted blister pack according to claim 1, characterized in that: The vacuum-formed cover is made of recycled polyester plastic material with added masterbatch containing pearlescent pigments. It is first extruded into sheets and then vacuum-formed.

Images