Packaging bag

Abstract

This utility model provides a packaging bag, relating to the field of plant cultivation technology, aiming to solve the technical problem that "conventional coconut coir strip packaging bags require opening the packaging opening when observing plant roots, thus affecting the temperature and humidity inside the bag." The packaging bag includes: an outer light-blocking layer with an opening; a transparent inner lining layer located inside the outer light-blocking layer; and a shielding structure located at the opening, capable of closing or opening the opening; wherein, when the shielding structure is open, the transparent inner lining layer is visible. The packaging bag provided by this utility model allows direct observation of plant root growth through the opening. Because the packaging bag is not opened during this process, the air inside the bag cannot exchange with the outside air, thus maintaining a stable temperature and humidity inside the bag, which is more conducive to plant root growth.

Description

Technical Field

[0001] This utility model relates to the field of plant cultivation technology, and more specifically, to a packaging bag. Background Technology

[0002] Normally, when observing the roots of coconut coir strips in a standard packaging bag, the packaging needs to be opened, which causes air convection inside and outside the bag, affecting the temperature and humidity inside the bag and is not conducive to the growth of the plant roots. Utility Model Content

[0003] The present invention aims to at least solve the technical problem in the prior art or related technologies that "conventional coconut coir strip packaging bags require opening the packaging opening when observing the plant root system, which affects the temperature and humidity inside the bag".

[0004] Therefore, this utility model provides a packaging bag.

[0005] The packaging bag provided in this embodiment of the utility model includes: an outer light-shielding layer with an opening; a transparent inner lining layer disposed inside the outer light-shielding layer; and a shielding structure disposed at the opening, which can close or open the opening; wherein, when the shielding structure opens the opening, the transparent inner lining layer is visible.

[0006] The packaging bag provided by this utility model includes an outer light-blocking layer and a transparent inner lining layer. The outer light-blocking layer is used to block sunlight and has an opening. The transparent inner lining layer is located inside the outer light-blocking layer and has high transparency. The packaging bag also includes a shielding structure located at the opening. The shielding structure can close or open the opening. When the opening is open, the growth of the plant roots can be directly observed through the transparent inner lining layer. Understandably, during plant cultivation, the culture medium (e.g., coconut coir strips) is first placed into the packaging bag, and then the plant roots are inserted into the coconut coir strips. During plant growth, the plant roots will spread to the surface of the packaging bag. Users can then directly observe the root growth through the opening. Since the packaging bag is not opened during this process, the air inside the bag cannot exchange with the outside air, thus maintaining a stable temperature and humidity inside the bag, which is more conducive to plant root growth.

[0007] In some embodiments, the shielding structure may optionally include a zipper structure and / or a shielding strip.

[0008] In this embodiment, the shielding structure can be a zipper structure, that is, a zipper structure is set at the opening position of the outer light-shielding layer, thereby realizing the opening and closing. Of course, the shielding structure can also be a shielding strip, which can be glued to the opening position of the light-shielding layer. When it is necessary to open the opening, the shielding strip can be torn off from the opening position.

[0009] In some embodiments, the zipper structure may optionally include a plastic zipper structure.

[0010] In this embodiment, the zipper structure can be a plastic zipper structure, which makes it less likely to damage the packaging bag during the zipper pulling process. Of course, the zipper structure can also be a metal zipper structure, which is less prone to corrosion.

[0011] In some embodiments, the zipper structure may be elongated. Alternatively, the zipper structure can be curved, meaning the opening is also curved. This allows the user to partially remove the outer light-blocking layer when opening the zipper, thus revealing a larger area of ​​the plant's root system.

[0012] In some embodiments, there may be multiple openings and multiple shielding structures, with each opening corresponding to one shielding structure.

[0013] In this embodiment, there are multiple openings and shielding structures. For example, each side of the packaging bag has one opening and one shielding structure, allowing the user to observe the root system of the coconut coir strips from multiple angles. For instance, the number of openings and shielding structures is greater than or equal to two, such as four or six.

[0014] In some embodiments, the outer light-shielding layer may optionally comprise a polyethylene layer containing a UV (ultraviolet) stabilizer.

[0015] In this embodiment, the outer light-shielding layer includes a polyethylene layer containing a UV stabilizer, which enhances weather resistance and improves the light-shielding performance of the packaging bag. Of course, the outer light-shielding layer can also be a polyvinyl chloride layer or a black polyethylene layer, etc.

[0016] In some embodiments, the transparent liner may optionally comprise a polypropylene layer.

[0017] In this embodiment, the polypropylene layer has high permeability and good moisture resistance, heat resistance and chemical stability.

[0018] In some embodiments, the packaging bag may optionally include an adhesive layer disposed between the outer light-blocking layer and the transparent inner liner layer.

[0019] In this embodiment, the packaging bag also includes an adhesive layer disposed between the outer light-shielding layer and the transparent inner liner layer. That is, the outer light-shielding layer and the transparent inner liner layer are bonded together by the adhesive layer, which makes the manufacturing process simpler and the connection effect better.

[0020] In some embodiments, the outer light-shielding layer and the transparent inner liner layer are optionally both cuboid structures, and the adhesive layer is disposed at the top corner of the outer light-shielding layer.

[0021] In this embodiment, the outer light-shielding layer and the transparent inner liner are bonded at their apex corners using an adhesive layer, meaning they are not bonded at all locations. This saves on adhesive materials and improves the final product. Alternatively, the adhesive layer can be used to bond the outer light-shielding layer at the midpoints of its four long sides.

[0022] In some embodiments, the width of the opening may be greater than or equal to 2 cm and less than or equal to 5 cm.

[0023] In this embodiment, the width of the opening is greater than or equal to 2 cm and less than or equal to 5 cm. For example, 3 cm or 4 cm. The width of the opening should not be too large, as this would result in a larger zipper structure and higher manufacturing costs. If the width of the opening is too small, the area for the user to observe would be smaller, which would be detrimental to the observation of the plant roots.

[0024] In some embodiments, the thickness of the outer light-shielding layer is optionally greater than or equal to 0.3 mm and less than or equal to 0.4 mm. For example, 0.3 mm or 0.4 mm.

[0025] In some embodiments, the thickness of the transparent inner liner may optionally be greater than or equal to 0.25 mm and less than or equal to 0.5 mm. For example, 0.3 mm or 0.4 mm.

[0026] In some embodiments, the packaging bag may optionally have a hexahedral structure, including a top surface, a bottom surface, and four side surfaces, with an opening on at least one side surface.

[0027] In this embodiment, the opening is located on at least one side of the packaging bag, so that the user can more easily observe the roots of the plant.

[0028] In some embodiments, the packaging bag may optionally include a culture medium packaging bag. For example, a coconut coir strip packaging bag or a culture soil packaging bag.

[0029] In some embodiments, the packaging bag may optionally be 100cm × 15cm × 10cm. It may also be 120cm × 15cm × 10cm.

[0030] In some embodiments, the light transmittance of the transparent inner liner is optionally greater than or equal to 95%. Alternatively, the light transmittance of the transparent inner liner is optionally greater than or equal to 98%, thereby making it easier for users to observe the plant's root system.

[0031] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0032] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0033] Figure 1 One of the structural schematic diagrams of a packaging bag according to an embodiment of the present invention is shown;

[0034] Figure 2 A second schematic diagram of the structure of a packaging bag according to an embodiment of the present invention is shown;

[0035] Figure 3 The third schematic diagram shows the structure of a packaging bag according to an embodiment of the present invention.

[0036] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0037] 1 Packaging bag, 11 Outer light-blocking layer, 112 Opening, 12 Transparent inner lining layer, 13 Covering structure, 132 Zipper structure, 134 Covering strip, 14 Adhesive layer. Detailed Implementation

[0038] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, the packaging bag 1 provided in this embodiment of the present invention includes: an outer light-shielding layer 11, on which an opening 112 is provided; a transparent inner lining layer 12, disposed inside the outer light-shielding layer 11; and a shielding structure 13, disposed at the opening 112, which can close or open the opening 112; wherein, when the shielding structure 13 opens the opening 112, the transparent inner lining layer 12 is visible.

[0041] The packaging bag 1 provided by this utility model includes an outer light-blocking layer 11 and a transparent inner lining layer 12. The outer light-blocking layer 11 is used to block sunlight and has an opening 112. The transparent inner lining layer 12 is disposed inside the outer light-blocking layer 11 and has high transparency. The packaging bag 1 also includes a blocking structure 13 disposed at the opening 112. The blocking structure 13 can close or open the opening 112. When the opening 112 is open, the growth of the plant roots can be directly observed through the transparent inner lining layer 12. Understandably, during the plant cultivation process, the culture medium (such as coconut coir strips) is first placed into the packaging bag 1, and then the plant's roots are inserted into the coconut coir strips. As the plant grows, the plant's roots will spread to the surface of the packaging bag 1, allowing the user to directly observe the growth of the plant's roots through the opening 112. Since the packaging bag 1 is not opened during this process, the air inside the packaging bag 1 cannot exchange with the outside air, which means that the packaging bag 1 can maintain a stable temperature and humidity, thus being more conducive to the growth of the plant's roots.

[0042] In some embodiments, the shielding structure 13 may optionally include a zipper structure 132 and / or a shielding strip 134.

[0043] In this embodiment, the shielding structure 13 can be a zipper structure 132, that is, the zipper structure 132 is set at the opening 112 of the outer light-shielding layer 11, thereby realizing the opening and closing of the opening 112. Of course, the shielding structure 13 can also be a shielding strip 134, which can be adhered to the opening 112 of the light-shielding layer. When it is necessary to open the opening 112, the shielding strip 134 can be torn off from the opening 112.

[0044] In some embodiments, the zipper structure 132 may optionally include a plastic zipper structure 132.

[0045] In this embodiment, the zipper structure 132 can be a plastic zipper structure 132, so that the packaging bag 1 is not easily damaged during the pulling process of the zipper structure 132. Of course, the zipper structure 132 can also be a metal zipper structure 132, which is not easily corroded. Optionally, the zipper structure 132 is a U-shaped long plastic zipper design.

[0046] In some embodiments, the zipper structure 132 may be elongated. Of course, the zipper structure 132 may also be an arc-shaped structure, that is, the shape of the opening 112 is also arc-shaped. In this way, when the opening 112 is opened through the zipper structure 132, the user can remove part of the outer light-blocking layer 11 by hand, thereby being able to see a larger area of ​​plant roots.

[0047] In some embodiments, there may be multiple openings 112 and multiple shielding structures 13, with each opening 112 corresponding to one shielding structure 13.

[0048] In this embodiment, there are multiple openings 112 and shielding structures 13. For example, each side of the packaging bag 1 is provided with an opening 112 and a shielding structure 13, so that the user can observe the root system of the coconut coir strip from multiple angles. For example, the number of openings 112 and shielding structures 13 is greater than or equal to 2, such as 4 or 6.

[0049] In some embodiments, the outer light-shielding layer 11 may optionally comprise a polyethylene layer containing a UV (Ultraviolet) stabilizer.

[0050] In this embodiment, the outer light-shielding layer 11 comprises a polyethylene layer containing a UV stabilizer, which enhances weather resistance and improves the light-shielding performance of the packaging bag 1. Of course, the outer light-shielding layer 11 can also be a polyvinyl chloride layer or a black polyethylene layer, etc.

[0051] In some embodiments, the transparent inner liner 12 may optionally include a polypropylene layer.

[0052] In this embodiment, the polypropylene layer has high permeability and good moisture resistance, heat resistance and chemical stability.

[0053] In some embodiments, the packaging bag 1 may optionally include an adhesive layer 14 disposed between the outer light-shielding layer 11 and the transparent inner liner layer 12.

[0054] In this embodiment, the packaging bag 1 also includes an adhesive layer 14, which is disposed between the outer light-shielding layer 11 and the transparent inner lining layer 12. That is, the outer light-shielding layer 11 and the transparent inner lining layer 12 are bonded together by the adhesive layer 14, which makes the manufacturing process simpler and the connection effect better.

[0055] In some embodiments, the outer light-shielding layer 11 and the transparent inner liner layer 12 are both cuboid structures, and the adhesive layer 14 is disposed at the top corner of the outer light-shielding layer 11.

[0056] In this embodiment, the outer light-shielding layer 11 and the transparent inner liner layer 12 are bonded at their apex corners using an adhesive layer 14. This means that bonding is not performed at all locations, which saves on adhesive materials and improves the final product. Alternatively, the adhesive layer 14 can be used to bond the outer light-shielding layer 11 at the midpoints of its four long sides.

[0057] In some embodiments, the width of the opening 112 may be greater than or equal to 2 cm and less than or equal to 5 cm.

[0058] In some embodiments, the thickness of the outer light-shielding layer 11 is optionally greater than or equal to 0.3 mm and less than or equal to 0.4 mm. For example, 0.3 mm or 0.4 mm.

[0059] In some embodiments, the thickness of the transparent inner liner 12 is optionally greater than or equal to 0.25 mm and less than or equal to 0.5 mm. For example, 0.3 mm or 0.4 mm.

[0060] In this embodiment, the width of the opening 112 is greater than or equal to 2 cm and less than or equal to 5 cm. For example, 3 cm or 4 cm. The width of the opening 112 should not be too large, as this would result in a larger zipper structure 132 and higher manufacturing costs. If the width of the opening 112 is too small, the area for the user to observe would be smaller, which would be detrimental to the observation of the plant roots.

[0061] In some embodiments, the packaging bag 1 is optionally a hexahedral structure, including a top surface, a bottom surface and four side surfaces, with an opening 112 provided on at least one side surface.

[0062] In this embodiment, openings 112 are provided on different sides of the packaging bag 1, so that the user can observe the root system of the coconut coir strip from multiple angles.

[0063] In some embodiments, the packaging bag 1 may optionally include a culture medium packaging bag. For example, a coconut coir strip packaging bag or a culture soil packaging bag.

[0064] In some embodiments, the packaging bag 1 may optionally be 100cm × 15cm × 10cm in size. It may also be 120cm × 15cm × 10cm.

[0065] In some embodiments, the transparent inner liner 12 has a light transmittance of 95% or more. Alternatively, the transparent inner liner 12 has a light transmittance of 98% or more, thereby making it easier for users to observe the plant's root system.

[0066] Another embodiment of this application provides a packaging bag 1 for coconut coir strips, which is a rectangular double-layer packaging bag, including an outer black polyethylene UV-blocking light-shielding layer (i.e., outer light-shielding layer 11) and an inner transparent polypropylene layer (i.e., transparent inner lining layer 12). The two layers of packaging are joined by adhesive at the four top corners and the middle of the four long sides. The outer light-shielding layer has a U-shaped long plastic zipper design on each of the two long bottom sides, which can be repeatedly opened and closed to expose the inner transparent layer. There are two polyethylene zippers, which can be pulled open in both directions at the same time. Through the transparent layer, the root system of the plant inside the coconut coir strip can be conveniently, quickly and intuitively observed, which greatly facilitates the daily inspection of the root system of greenhouse crops. At the same time, it does not affect the temperature and humidity of the root environment inside the coconut coir strip, does not have direct contact with the root system, and does not cause mechanical damage to the fibrous roots or fine roots.

[0067] It's important to understand that a healthy and stable root environment is crucial for tomato yield in greenhouse cultivation. Therefore, regular root system checks are essential during production. The root system directly reflects the overall growth status of the plant. Observing the water content before and after irrigation, as well as the number of white and fibrous roots, is closely related to the plant's water control ability and robustness. A plant with clean, fine roots, a strong taproot, and abundant fibrous roots usually indicates good overall plant growth and relatively appropriate irrigation. Conversely, a plant with dark brown roots, few fibrous roots, severe waterlogging, and loose substrate... The presence of abnormal root systems indicates poor root growth and suggests room for adjustment in the irrigation plan. Based on the root system's condition, relevant personnel can respond quickly and adjust the irrigation and environmental control systems promptly to address any abnormal plant issues. Currently, common methods for checking root systems in greenhouses often require cutting and turning over coconut coir bags, which inevitably causes direct and indirect contact with the plant's roots, resulting in some physical damage to the fibrous roots and affecting normal plant growth. The outer packaging bag for the coconut coir strips in this application can effectively avoid such problems and has a positive effect on improving the current production efficiency of tomato greenhouses.

[0068] The packaging bags in this application come in two sizes: 100cm and 120cm. Detailed data is shown in Table 1 below:

[0069] Table 1

[0070]

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A packaging bag, characterized in that, include: An outer light-shielding layer, wherein an opening is provided on the outer light-shielding layer; A transparent inner lining layer is disposed inside the outer light-shielding layer; A shielding structure is provided at the opening, the shielding structure being capable of closing the opening or opening the opening; When the opening is opened in the shielding structure, the transparent inner lining layer becomes visible.

2. The packaging bag according to claim 1, characterized in that, The shielding structure includes a zipper structure and / or a shielding strip.

3. The packaging bag according to claim 1, characterized in that, The shielding structure includes a zipper structure. The zipper structure includes a plastic zipper structure; and / or The zipper structure is long and narrow.

4. The packaging bag according to claim 1, characterized in that, There are multiple openings and multiple shielding structures, with each opening corresponding to one shielding structure.

5. The packaging bag according to claim 1, characterized in that, The outer light-shielding layer includes a polyethylene layer containing a UV stabilizer; and / or The transparent inner liner includes a polypropylene layer.

6. The packaging bag according to claim 1, characterized in that, Also includes: An adhesive layer is disposed between the outer light-shielding layer and the transparent inner lining layer.

7. The packaging bag according to claim 6, characterized in that, Both the outer light-shielding layer and the transparent inner lining layer have a cuboid structure, and the adhesive layer is located at the top corner of the outer light-shielding layer.

8. The packaging bag according to any one of claims 1 to 7, characterized in that, The width of the opening is greater than or equal to 2cm and less than or equal to 5cm.

9. The packaging bag according to any one of claims 1 to 7, characterized in that, The thickness of the outer light-shielding layer is greater than or equal to 0.3 mm and less than or equal to 0.4 mm; and / or The thickness of the transparent inner lining layer is greater than or equal to 0.25 mm and less than or equal to 0.5 mm.

10. The packaging bag according to any one of claims 1 to 7, characterized in that, The packaging bags include culture medium packaging bags; and / or The packaging bag measures 100cm × 15cm × 10cm; and / or The light transmittance of the transparent inner lining layer is greater than or equal to 95%.

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