Multi-piece dustproof packaging bag with temperature-sensitive color changing function

Abstract

The utility model relates to the technical field of packaging bags, in particular to a multi-piece dustproof packaging bag with a temperature-sensitive color-changing function, which comprises a bag body, a tearing opening is arranged on the side wall of the bag body, a cover plate for completely shielding the tearing opening is arranged on the side wall of the bag body where the tearing opening is positioned, and a temperature-sensitive color-changing area is arranged on the upper surface of the cover plate. A hard rubber strip is arranged near the edge of the lower surface of the cover plate; the lower surface of the cover plate is provided with a sealing glue layer, an attaching glue layer, a sealing glue layer and an auxiliary sealing glue layer in a partitioned mode. The utility model provides a multi-piece dust-proof packaging bag with a temperature-sensitive color-changing function, which can solve the technical problem that the prior art does not have dust-proof and temperature-sensitive color-changing functions and cannot meet various requirements of consumers.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a multi-piece dust-proof packaging bag with a temperature-sensitive color-changing function. Background Art

[0002] The sleep pants are made of non-woven fabric, PE film and other materials through a heat-sealing process, and are close-fitting to the skin, which is a kind of wrapped sanitary product. They are excellent in water absorption, all-round wrapping, side leakage and leakage prevention, and thus gradually win the favor of many female consumers.

[0003] In view of the fact that the single size of the sleep pants is larger than that of ordinary sanitary napkins, a multi-piece packaging design has emerged on the market, aiming to improve the carrying convenience without significantly increasing the packaging volume. Commonly, a single package contains 5 pieces, far exceeding the capacity of 1 to 3 pieces in the traditional packaging.

[0004] However, this design also brings a challenge: once opened, users often cannot use up all the sleep pants immediately, resulting in long-term exposure to the open environment. Most current packaging solutions rely on a simple tear line on the side for easy access, but this design is not perfect for multi-piece packaging. The tear opening easily allows dust and other pollutants to enter, affecting the hygiene of the remaining sleep pants. In addition, the packaging on the market generally lacks interactivity and interesting elements, which weakens the attraction of the product to a certain extent.

[0005] In summary, the market has an increasingly urgent need for a new type of packaging bag that not only solves the dust-proof problem and protects the unused products from external pollution, but also incorporates interesting designs such as temperature-sensitive color-changing materials to enhance the user experience and meet the dual expectations of consumers for personalization and practicality. Content of the Utility Model

[0006] The utility model provides a multi-piece dust-proof packaging bag with a temperature-sensitive color-changing function, which can solve the technical problems that the prior art does not have dust-proof function and the temperature-sensitive color-changing function cannot meet the various needs of consumers.

[0007] The present application provides the following technical solutions:

[0008] A multi-piece dust-proof packaging bag with a temperature-sensitive color-changing function, including a bag body. A tear opening is provided on the side wall of the bag body, and a cover sheet that completely covers the tear opening is arranged on the side wall of the bag body where the tear opening is located. A temperature-sensitive color-changing area is arranged on the upper surface of the cover sheet; a hard rubber strip is arranged near the edge of the lower surface of the cover sheet; the lower surface of the cover sheet is divided into areas to be provided with an auxiliary sealing adhesive layer, a sealing adhesive layer, a sealing glue layer, and a fitting adhesive layer. The auxiliary sealing adhesive layer is located on the outermost side, the sealing adhesive layer is located inside the auxiliary sealing adhesive layer, the sealing glue layer is symmetrically arranged at both ends of the sealing adhesive layer, and the fitting adhesive layer is located inside the sealing adhesive layer.

[0009] Beneficial effects:

[0010] 1) Effectively prevent dust, maintain the sealing effect, and facilitate sealing and opening. The tearing hole set on the side wall of the bag body can be used to open the bag body, and the cover can cover and expose the tearing hole; after taking out the sleeping pants from the tearing hole, the bag body will be partially wrinkled and sunken due to the lack of support inside the bag body, and the hard rubber strip set on the lower surface of the cover is not easy to deform, so that when the cover is closed, the hard rubber strip can have a downward pressing and flattening effect on the bag body, so that the cover fits better on the bag body and ensures that the tearing hole is sealed; due to the supporting effect of the sealing strip on the cover, after the cover is opened, the edge of the cover will not naturally curl and turn over, so when the cover is closed again, there is no need to tidy up the edge of the cover to make it fit the bag body, thereby improving the sealing efficiency; in addition, because the hard rubber strip is set on the lower surface of the cover, when the cover is attached to the bag body, the edge area of ​​the cover is higher than the center area of ​​the cover, which is convenient for opening the cover.

[0011] 2) Temperature-sensitive color change, effectively improving the fun. The temperature-sensitive color change area is set on the cover sheet, so that when the hand pinches the cover sheet, the position where the hand touches the cover sheet changes color, which improves the fun of the packaging bag; in addition, the color change area can be set on the part of the cover sheet that does not touch the hand as needed, so that it changes color according to the ambient temperature, thereby further improving the fun of the packaging bag.

[0012] 3) Set the adhesive layer in different areas to ensure the sealing effect and effective opening of the cover. Set the sealing adhesive layer, laminating adhesive layer, sealing adhesive layer and auxiliary sealing adhesive layer in different areas on the lower surface of the cover. The auxiliary sealing adhesive layer is located on the outermost side, the sealing adhesive layer is located on the inner side of the auxiliary sealing adhesive layer, the sealing adhesive layer is symmetrically set at both ends of the sealing adhesive layer, and the laminating adhesive layer is located on the inner side of the sealing adhesive layer, so that the cover can seal the tear and can be opened quickly.

[0013] Furthermore, the cover sheet includes a cover sheet body and a hand-held sheet, the hand-held sheet is fixedly connected to the cover sheet body, the temperature-sensitive color-changing area is arranged on the upper surface of the hand-held sheet, and the auxiliary sealing adhesive layer is arranged on the lower surface of the hand-held sheet.

[0014] Beneficial effects: The temperature-sensitive color-changing area is arranged on the upper surface of the hand-pinch piece, so that when the cover piece is opened, the hand is in continuous contact with the temperature-sensitive color-changing area, so that the color of the temperature-sensitive color-changing area changes, thereby improving the interest of the packaging bag; the auxiliary sealing adhesive layer is arranged on the lower surface of the hand-pinch piece, which can help prevent the edge of the hand-pinch piece from flipping over and affecting the appearance after the cover piece body and the bag body are sealed together, and because the auxiliary sealing adhesive layer is arranged on the lower surface of the hand-pinch piece, when the hand-pinch piece is attached to the bag body, the hand-pinch piece can further improve the overall sealing effect of the cover piece.

[0015] Furthermore, the edge of the cover sheet body is folded to form a roll shape, the hard rubber strip is inserted into the roll, the sealing rubber layer is arranged at both ends of the outer surface of the roll, and the sealing rubber layer is arranged in the middle of the outer surface of the roll.

[0016] Beneficial effects: The edge of the cover sheet body is turned over to form a cylindrical shape for threading a hard rubber strip, which can prevent the hard rubber strip from falling off, is beneficial to ensuring the supporting effect of the hard rubber strip on the edge of the cover sheet body. The sealing adhesive layer is arranged at both ends of the outer surface of the cylinder, and the sealing adhesive layer at the seal is arranged in the middle of the outer surface of the cylinder, which can effectively ensure the sealing effect of the cover sheet body and is also convenient for opening the cover sheet from the pinch tab.

[0017] Furthermore, two hard rubber strips are symmetrically arranged at the edge of the lower surface of the cover sheet body. The hard rubber strips are fixedly connected to the cover sheet body, and the sealing adhesive layer is evenly arranged at intervals on the outer surface of the hard rubber strips; three sealing adhesive layers at the seal are evenly arranged between the two hard rubber strips.

[0018] Beneficial effects: The symmetrically arranged hard rubber strips can ensure the supporting effect on the left and right edges of the cover sheet body. The evenly arranged sealing adhesive layer at intervals on the outer surface of the hard rubber strips can ensure the sealing effect of the cover sheet body. And three sealing adhesive layers at the seal are evenly arranged between the two hard rubber strips, so that when the cover sheet body is opened, it is in a state of being opened step by step in sequence, prolonging the contact time between the pinch tab and the hand, making the thermosensitive color-changing area change color more completely, with a better color-changing effect and more fun.

[0019] Furthermore, the fitting adhesive layer is arranged in the middle of the lower surface of the cover sheet body.

[0020] Beneficial effects: Arranging the fitting adhesive layer in the middle of the lower surface of the cover sheet body can ensure that the cover sheet body is completely fitted with the bag body, effectively improving the sealing effect of the cover sheet body on the tear opening.

[0021] Furthermore, the auxiliary sealing adhesive layer at the seal is symmetrically arranged on the lower surface of the pinch tab and just aligns with the gap between the sealing adhesive layer at the seal and the sealing adhesive layer.

[0022] Beneficial effects: Setting the auxiliary sealing adhesive layer in this way enables the pinch tab to be fitted with the bag body. Setting the auxiliary sealing adhesive layer to just align with the gap between the sealing adhesive layer at the seal and the sealing adhesive layer can further ensure that the gap between the sealing adhesive layer at the seal and the sealing adhesive layer can be further sealed, effectively ensuring the overall sealing effect of the cover sheet body.

[0023] Furthermore, the viscosity magnitude relationship of the sealing adhesive layer, the fitting adhesive layer, the sealing adhesive layer at the seal, and the auxiliary sealing adhesive layer at the seal is: sealing adhesive layer > sealing adhesive layer at the seal > fitting adhesive layer > auxiliary sealing adhesive layer at the seal.

[0024] Beneficial effects: Setting the viscosity magnitude relationship of the sealing adhesive layer, the fitting adhesive layer, the sealing adhesive layer at the seal, and the auxiliary sealing adhesive layer at the seal in this way can effectively ensure that the edge of the cover sheet body can be sealed, ensure the fitting of the middle part of the cover sheet with the bag body, but does not prevent the entire cover sheet from being opened from the pinch tab. Description of the Drawings

[0025] Figure 1 This is the front view of the first embodiment of the multi-piece dust-proof packaging bag with thermosensitive color-changing function of the present utility model.

[0026] Figure 2 It is Figure 1 the opened view of the middle cover sheet.

[0027] Figure 3 It is Figure 2 the sectional view taken along line A-A in the middle.

[0028] Figure 4 It is Figure 2 the sectional view taken along line B-B in the middle.

[0029] Figure 5 It is Figure 2 the schematic view of wrapping the hard rubber strip in the cover body along line A-A in the middle.

[0030] Figure 6 This is the front view of the third embodiment of the multi-piece dust-proof packaging bag with thermosensitive color-changing function of the present utility model.

[0031] Figure 7 It is Figure 6 the opened view of the middle cover sheet. Specific embodiments

[0032] The following is a further detailed description through specific embodiments:

[0033] Description of the drawings: bag body 1, top surface 11, front surface 12, heat-sealing strip 13, tear opening 14, cover sheet 2, cover sheet body 21, bonding adhesive layer 211, hand-holding piece 22, thermosensitive color-changing area 221, auxiliary sealing adhesive layer 222, hard rubber strip 23, sealing adhesive layer 231, sealing adhesive layer 232, reel 24.

[0034] Embodiment 1

[0035] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, the multi-piece dust-proof packaging bag with thermosensitive color-changing function includes a bag body, which is formed by folding a sheet material to form four side walls and heat-sealing and fixing the joints. The upper and lower edges of the four side walls are respectively closed and heat-sealed to form the top surface 11 and the bottom surface of the bag body, and a heat-sealing strip 13 is left at the heat-sealing places of the top surface 11 and the bottom surface.

[0036] The four side walls of the bag body are respectively the front surface 12, the left side surface, the right side surface and the back surface. A tear opening 14 is formed on the front surface 12 of the bag body. Before the tear opening 14 is opened, it is a closed tear line. A cover piece 2 that completely covers the tear opening 14 is provided on the front surface 12 of the bag body where the tear opening 14 is located. The cover piece 2 includes a cover piece body 21 and a pinch piece 22. The pinch piece 22 is integrally formed with or heat-melted to the cover piece body 21. The root of the cover piece body 21 is heat-sealed and fixed to the bag body. A temperature-sensitive color-changing area 221 is provided on the upper surface of the pinch piece 22. The temperature-sensitive color-changing area 221 can be words or patterns printed with temperature-sensitive color-changing materials.

[0037] A rigid rubber strip 23 is provided near the edge of the lower surface of the cover piece body 21. The rigid rubber strip 23 can be a long strip made of plastic. An adhesive layer is coated on the upper surface of the long strip, and a common adhesive layer is coated on the lower surface of the long strip. The viscosity of the adhesive layer is greater than that of the common adhesive layer. The two adhesive layers are formed by glues with different viscosities. In embodiments other than this embodiment, the adhesive layer and the common adhesive layer can use the same kind of glue with the same thickness, but the adhesive layer is coated on the surface, and the common adhesive layer is coated with dots of glue. It is convenient to fix the long strip on the lower surface of the cover piece body 21, so that when the cover piece 2 is opened, the long strip will not fall off from the cover piece 2. Specifically, the viscosity of the glue on the upper surface of the long strip (i.e., the contact surface between the long strip and the cover piece 2) is greater than the viscosity of the glue on the lower surface of the long strip (i.e., the contact surface between the long strip and the bag body).

[0038] The lower surface of the cover piece body 21 is provided with a sealing adhesive layer 231, a fitting adhesive layer 211, a sealing adhesive layer 232, and an auxiliary sealing adhesive layer 222 in regions, and the auxiliary sealing adhesive layer 222 is located on the outermost side, the sealing adhesive layer 232 is located inside the auxiliary sealing adhesive layer 222, the sealing adhesive layer 231 is symmetrically arranged at both ends of the sealing adhesive layer 232, and the fitting adhesive layer 211 is located inside the sealing adhesive layer 232. In this embodiment, the fitting adhesive layer 211 is provided in the middle of the lower surface of the cover piece body 21, and the auxiliary sealing adhesive layer 222 is provided on the lower surface of the pinch piece 22 and just aligns with the gap between the sealing adhesive layer 232 and the sealing adhesive layer 231. In addition, the viscosity relationship of the sealing adhesive layer 231, the fitting adhesive layer 211, the sealing adhesive layer 232, and the auxiliary sealing adhesive layer 222 is: sealing adhesive layer 231 > sealing adhesive layer 232 > fitting adhesive layer 211 > auxiliary sealing adhesive layer 222. Such a setting of the viscosity of the adhesive layer is beneficial to ensuring that the tear opening 14 can be sealed when the cover piece 2 is covered on the bag body, and at the same time it is convenient to open the cover piece 2. In other embodiments other than this embodiment, in order to make the viscosities of the adhesive layers different, when using the same kind of glue with the same viscosity, the adhesive layers are respectively coated with dots and surfaces, so that the viscosities of the adhesive layers in different regions change; when using glues with different viscosities, the corresponding glues are uniformly coated in different regions respectively.

[0039] The usage method is as follows:

[0040] Open the packaging bag. Pinch the hand-held piece 22 with your finger and tear open the cover piece 2 upwards. Since the hand-held piece 22 is located in the middle of the edge of the cover piece body 21 and the glue-applying partition is arranged on the lower surface of the cover piece body 21, it is easier to open the cover piece 2 from the hand-held piece 22. Specifically, when the hand-held piece 22 is pinched and flipped open by hand, the auxiliary sealing glue layer 222 at the lower part of the hand-held piece 22 will be opened first, followed by the sealing glue layer 232, the sealing glue layer 231, and the bonding glue layer 211 in sequence.

[0041] Re-cover the cover piece 2. When taking out the sleep pants in the packaging bag and then pressing down to re-cover the cover piece 2, since there is a gap inside the bag body, the front side 12 of the bag body will be sunken due to the lack of support from the sleep pants. At this time, when pressing down the cover piece 2, due to the presence of the hard glue strip 23 on the lower surface of the cover piece body 21, it is more convenient for the user to apply force to make the cover piece 2 fit on the bag body, so that the cover piece 2 can closely fit the front side 12 of the bag body.

[0042] The thermosensitive color-changing area 221 changes color to increase the fun. When opening and closing the cover piece 2, the finger will contact the thermosensitive color-changing area 221 arranged on the upper surface of the hand-held piece 22 when pinching the hand-held piece 22, causing the thermosensitive color-changing area 221 to change color, thus increasing the fun of the packaging bag.

[0043] Embodiment 2

[0044] As Figure 5 shown, the difference between this embodiment and Embodiment 1 is that: 1) The edge of the cover piece body 21 is folded to form a cylindrical shape, and the hard glue strip 23 is threaded through the cylinder 24. The sealing glue layer 231 is arranged at both ends of the side of the cylinder 24 close to the bag body, and the sealing glue layer 232 is arranged in the middle of the side of the cylinder 24 close to the bag body.

[0045] The fixing method of the hard glue strip 23 is changed to be arranged inside the cylinder 24, making the hard glue strip 23 less likely to fall off, and also saving the process of applying glue on both sides of the hard glue strip 23. And according to needs, the hard glue strip 23 can be set as a cylinder or a strip. The cylindrical hard glue strip 23 makes the contact surface between the edge of the cover piece 2 and the bag body smaller, so it is easier to open; in this embodiment, a strip-shaped hard glue strip 23 is preferably used. The strip-shaped hard glue strip 23 makes the contact surface between the edge of the cover piece body 21 and the bag body larger, so the sealing performance is better, the fitting degree between the cover piece body 21 and the bag body 1 is better, and it is more beautiful. And the sealing glue layer 231 is arranged at both ends of the side of the cylinder 24 close to the bag body, and the sealing glue layer 232 is arranged in the middle of the side of the cylinder 24 close to the bag body to ensure the sealing effect of the cover piece 2.

[0046] Embodiment 3

[0047] As Figure 6 、 Figure 7As shown in the figure, the difference between this embodiment and the first embodiment is as follows: 1) There are two hard rubber strips 23 symmetrically arranged at the edge of the lower surface of the cover plate body 21. The hard rubber strips 23 are fixedly connected to the cover plate body 21, and sealing glue layers 231 are evenly arranged at intervals on the outer surface of the hard rubber strips 23; three sealing glue layers 232 are evenly arranged between the two hard rubber strips 23.

[0048] 2) Compared with the first embodiment, the hand-held piece 22 is larger, and the transition between the edge of the hand-held piece 22 and the edge of the cover plate body 21 is smoother.

[0049] Since the hard rubber strips 23 and the cover plate body 21 are fixed by glue coating, and the hard rubber strips 23 are symmetrically arranged on the lower surface of the cover plate body 21, while ensuring the supporting effect of the hard rubber strips 23 on the cover plate body 21, a gap is left in the middle of the edge of the cover plate body 21. The three sealing glue layers 232 arranged on the gap make it have a layer-by-layer opening effect when the hand holds the hand-held piece 22 to open the cover plate body 21, prolonging the time to open the cover plate body 21, the contact time between the hand and the hand-held piece 22, making the thermosensitive color-changing area 221 on the hand-held piece 22 change color more completely and having more fun. Since the hand-held piece 22 is larger and the transition between the edge of the hand-held piece 22 and the edge of the cover plate body 21 is smoother, the strength of the hand-held piece 22 is higher, and the hand-held piece 22 is not easily torn when tearing the hand-held piece 22 to open the cover plate body 21.

[0050] The above are only the embodiments of the present invention. The present invention is not limited to the fields involved in this embodiment case, and common knowledge such as the specific structures and characteristics known in the solutions is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A multi-pack dustproof packaging bag with a temperature-sensitive color-changing function, comprising a bag body, characterized in that: The side wall of the bag body is provided with a tear, and a cover piece which completely covers the tear is arranged on the side wall of the bag body where the tear is located, and a temperature-sensitive color-changing area is arranged on the upper surface of the cover piece; a hard rubber strip is arranged near the edge of the lower surface of the cover piece; the lower surface of the cover piece is provided with an auxiliary sealing rubber layer, a sealing rubber layer, a sealing rubber layer, and a bonding rubber layer in different areas, the auxiliary sealing rubber layer is located at the outermost side, the sealing rubber layer is located on the inner side of the auxiliary sealing rubber layer, the sealing rubber layer is symmetrically arranged at both ends of the sealing rubber layer, and the bonding rubber layer is located on the inner side of the sealing rubber layer.

2. The multi-pack dustproof packaging bag with temperature-sensitive color changing function according to claim 1, characterized in that: The cover sheet comprises a cover sheet body and a hand-held sheet, wherein the hand-held sheet is fixedly connected to the cover sheet body, the temperature-sensitive color-changing area is arranged on the upper surface of the hand-held sheet, and the auxiliary sealing adhesive layer is arranged on the lower surface of the hand-held sheet.

3. The multi-pack dustproof packaging bag with temperature-sensitive color changing function according to claim 2, characterized in that: The edge of the cover sheet body is folded to form a roll shape, the hard rubber strip is inserted into the roll, the sealing rubber layer is arranged at both ends of the outer surface of the roll, and the sealing rubber layer is arranged in the middle of the outer surface of the roll.

4. The multi-pack dustproof packaging bag with temperature-sensitive color changing function according to claim 2, characterized in that: Two hard rubber strips are symmetrically arranged on the edge of the lower surface of the cover body, the hard rubber strips are fixedly connected to the cover body, and sealing rubber layers are evenly arranged on the outer surface of the hard rubber strips; three sealing rubber layers are evenly arranged between the two hard rubber strips.

5. The multi-pack dustproof packaging bag with temperature-sensitive color changing function according to any one of claims 1 to 4, characterized in that: The bonding adhesive layer is arranged at the middle part of the lower surface of the cover sheet body.

6. The multi-pack dustproof packaging bag with temperature-sensitive color changing function according to claim 5, characterized in that: The auxiliary sealing adhesive layer is symmetrically arranged on the lower surface of the hand-kneading piece and is just aligned with the gap between the sealing adhesive layer and the sealing adhesive layer.

7. The multi-pack dustproof packaging bag with temperature-sensitive color changing function according to claim 6, characterized in that: The viscosity of the sealing adhesive layer, the laminating adhesive layer, the sealing adhesive layer and the auxiliary sealing adhesive layer is in the following order: sealing adhesive layer>sealing adhesive layer>laminating adhesive layer>auxiliary sealing adhesive layer.

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