CN216187327U

CN216187327U - Packing box

Info

Publication number: CN216187327U
Application number: CN202122434436.XU
Authority: CN
Inventors: 宁淑丽
Original assignee: Kangmeibao Suzhou Co ltd
Current assignee: Kangmeibao Suzhou Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-04-05
Anticipated expiration: 2031-10-09

Abstract

The utility model relates to the technical field of packaging, and discloses a packaging box, which comprises: the box body comprises a box top, a side wall and a box bottom, wherein the box top and the box bottom are oppositely arranged, the side wall is positioned between the box top and the box bottom, one end of the side wall is connected with the box top, the other end of the side wall is connected with the box bottom, and an accommodating space for loading contents is defined by the box top, the side wall and the box bottom; wherein, the outer surface of at least lateral wall and/or the outer surface of box top are provided with the temperature sensing color change label. This packing carton outward appearance is provided with the temperature sensing label that discolours, and the temperature of packing carton can be responded to the temperature of packing carton at the packing carton surface to the temperature of label that discolours by the temperature sensing, reflects the temperature of packing carton by self colour, plays the suggestion temperature effect, reminds the consumer, reduces consumer scald risk, protects consumer's safety.

Description

Packing box

Technical Field

The utility model relates to the technical field of packaging, in particular to a packaging box.

Background

In modern life, the box-packed beverage is convenient to eat and carry, the box-packed beverage is developed more and more widely at present, especially, the box-packed milk beverage, such as box-packed milk, and a lot of consumers need to heat the beverage at present, and a lot of box-packed beverages at present can also be heated in a microwave oven or other heating appliances, but after the box-packed beverage is heated, if the heating is excessive, when the consumers need to take the heated box-packed beverage, the current temperature condition of the box-packed beverage cannot be known, the risk of being scalded is generated, and the safety of the consumers is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a packaging box, wherein a temperature-sensing color-changing label is arranged on the outer surface of the packaging box, and the temperature-sensing color-changing label is attached to the packaging box, can sense the temperature of the packaging box, reflects the temperature of the packaging box by the color of the temperature-sensing color-changing label, plays a role in prompting the temperature, reminds a consumer, reduces the scalding risk of the consumer, and protects the safety of the consumer.

In order to achieve the purpose, the utility model provides the following technical scheme:

a package, comprising:

the box body comprises a box top, a side wall and a box bottom, wherein the box top and the box bottom are oppositely arranged, the side wall is positioned between the box top and the box bottom, one end of the side wall is connected with the box top, the other end of the side wall is connected with the box bottom, and an accommodating space for loading contents is defined by the box top, the side wall and the box bottom;

wherein at least the outer surface of the side wall and/or the outer surface of the box top is provided with a temperature-sensitive color-changing label.

Among the above-mentioned packing carton, be provided with the thalposis label that discolours on the surface of box body, the thalposis label that discolours is attached on the packing carton, can respond to the temperature of packing carton, and reflect the temperature of packing carton by the colour of self, the consumer can learn the temperature range of packing carton according to the colour that the thalposis label that discolours on the packing carton appears, the temperature discolours the label and can play the suggestion effect, remind the consumer, reduce consumer scald risk, protect consumer's safety, and, in the heating process, also can change and the colour degree of depth through observing the colour of the thalposis label that discolours on the packing carton, avoid heating excessively to lead to the packing carton to damage and cause the drink to splash, thereby protect consumer's safety.

Optionally, when the outer surface of the side wall is provided with the temperature-sensitive color-changing label, the temperature-sensitive color-changing label is arranged in the middle of the side wall along the direction from the box bottom to the box top, or the temperature-sensitive color-changing label is arranged at the end of the side wall facing the box top.

Optionally, when the outer surface of the side wall is provided with a temperature-sensitive color-changing label, the temperature-sensitive color-changing label is wound on the outer periphery side of the side wall.

Optionally, a connecting longitudinal seam is formed in the side wall in a direction from the box bottom to the box top, and the temperature-sensitive color-changing label is arranged on an outer side surface of the side wall, which is deviated from the side surface where the connecting longitudinal seam is located, or the temperature-sensitive color-changing label is arranged on an outer side surface of the side wall, which is adjacent to the side surface where the connecting longitudinal seam is located.

Optionally, a jack for inserting a straw is arranged on the box top, and when the temperature-sensitive color-changing label is arranged on the outer surface of the box top, the temperature-sensitive color-changing label is located on the periphery side of the jack.

Optionally, the thermochromic label is affixed to an outer surface of the sidewall and/or an outer surface of the cassette top.

Optionally, the thermochromic label comprises a thermochromic layer.

Optionally, the temperature-sensitive color changing layer is a temperature-sensitive ink layer.

Optionally, the temperature-changing ink layer is a reversible temperature-changing ink layer.

Optionally, the temperature-sensitive color-changing label comprises a transparent protective layer, and the transparent protective layer is located on one side of the temperature-sensitive color-changing layer, which deviates from the box body, and covers the temperature-sensitive color-changing layer.

Optionally, the box body has a structure formed by folding a paperboard, and the paperboard includes a support layer and a PE layer disposed on the support layer and facing the outside of the box body, and at least a part of the PE layer is doped with temperature-sensitive ink particles to form the temperature-sensitive color-changing label.

Optionally, the top of the box comprises a top seal and the bottom of the box comprises a bottom seal, wherein the top seal strength is less than the bottom seal strength.

Drawings

Fig. 1 is a schematic structural diagram of a packaging box according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a packaging box according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a packaging box according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a packaging box according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a packing box according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a packing box according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a packing box according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a packing box according to an embodiment of the present invention;

icon: 1-box top; 2-box bottom; 3-side wall; 4-temperature sensitive color changing label; 5-a straw; 11-a jack; 21-connecting longitudinal seam.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

For convenience of description, in the present embodiment, a normal placement position of the box body is described, wherein a direction from the box bottom to the box top is a vertical direction. As shown in fig. 1, 5 and 6, an embodiment of the present invention provides a packing box, including: the box body is provided with a box top 1, side walls 3 and a box bottom 2, wherein the box top 1 and the box bottom 2 are oppositely arranged, the side walls 3 are positioned between the box top 1 and the box bottom 2, the side walls 3 are arranged around the peripheral sides of the box top 1 and the box bottom 2, the side walls 3 form a cylindrical structure, one end of each side wall 3 is connected with the peripheral side of the box top 1, the other end of each side wall 3 is connected with the peripheral side of the box bottom 2, and the box top 1, the side walls 3 and the box bottom 2 form a containing space for containing contents (for example, liquid, such as milk, beverage, tomato sauce and the like in particular) in a surrounding manner; in addition, the outer surface of the side wall 3 or the outer surface of the box top 1 is provided with a temperature-sensitive color-changing label 4, or the outer surfaces of the side wall 3 and the box top 1 are both provided with temperature-sensitive color-changing labels 4; for the arrangement position of the temperature-sensitive color-changing label 4, there may be multiple choices, and the temperature-sensitive color-changing label 4 may also be arranged at the box bottom 2, or in order to adapt to the habit of taking the packaging box by the consumer, the temperature-sensitive color-changing label 4 may be arranged only on the outer surface of the side wall 3 and/or the box top 1, which is not limited in this embodiment; wherein, the temperature-sensitive color-changing label 4 changes color when sensing higher temperature, and the color depth presented in different temperature ranges is different; for example, the color of the thermochromic label 4 is pink when encountering high temperature, and when the temperature is from 40 ℃ to 90 ℃, the color of the thermochromic label 4 gradually deepens, and the temperature changes are as follows: when the temperature of the packaging box is 40 ℃, the color of the temperature-sensitive color-changing label 4 is a first color, and the first color is very light pink; when the temperature of the packaging box is 60 ℃, the color of the temperature color-changing label is a second color, and the second color is lighter pink; when the temperature of the packaging box is 80 ℃, the color of the temperature color-changing label is a third color, and the third color is slightly light pink; when the temperature of the packaging box is 85 ℃, the color of the temperature color-changing label is a fourth color, and the fourth color is pink; when the temperature of the packaging box is 90 ℃, the color of the temperature color-changing label is a fifth color, and the fifth color is dark pink; wherein, from 40 ℃ to 90 ℃, the color depth of the temperature-sensing color-changing label 4 is that the first color is less than the second color and less than the third color and less than the fourth color and less than the fifth color, that is, the higher the temperature of the packaging box is, the darker the color presented by the temperature-sensing color-changing label 4 on the packaging box is, the temperature-sensing color-changing label 4 is arranged on the packaging box and can sense the temperature of the packaging box, the temperature of the packaging box can be reflected by the self color, the temperature range of the packaging box can be known by consumers according to the color presented by the temperature-sensing color-changing label 4 on the packaging box, the temperature-sensing color-changing label can play a role of prompting, the consumers are reminded, the risk of scalding of the consumers is reduced, the safety of the consumers is protected, and in the heating process, the splashing caused by the damage of the packaging box due to excessive heating can also be avoided, thereby protecting the safety of the consumer.

Wherein the top of the case comprises a top seal and the bottom of the case comprises a bottom seal, wherein the strength of the top seal is less than the strength of the bottom seal. Thus, even if the sealing is broken in the heating process, the sealing can only occur at the top, and the bottom cannot leak.

It should be noted that, the color presented after the temperature-sensitive color-changing label senses the high temperature may also be blue, green, or black, or other colors, which is not limited in this embodiment, wherein the trend of the color depth along with the temperature change is the above pink color change trend, which is not described herein again.

It should be noted that, for the outer surface of the sidewall, the outer surface of the box top, and the outer surface of the box bottom, taking the outer surface of the sidewall as an example, with respect to the receiving cavity of the box body, the receiving cavity is the inside of the box body, the surface of the sidewall facing the receiving cavity is the inner surface, and the surface of the sidewall facing away from the receiving cavity is the outer surface, where the outer surface of the sidewall is provided with the temperature-sensitive color-changing label, and the temperature-sensitive color-changing label is provided on the outer surface of the sidewall in any form, for example, in a form of a layer structure attached to the outer surface layer of the sidewall, or in a form of being combined with the structure of the outermost layer of the sidewall, and the outer surface of the temperature-sensitive color-changing label is flush with the outer surface of the sidewall to form a same integral surface, or the temperature-sensitive color-changing label is provided on the outer surface of the sidewall in other forms, and can be understood as being provided on the outer surface of the sidewall, the embodiment is not limited; in the same way, the arrangement of the temperature-sensitive color-changing label on the outer surfaces of the box top and the box bottom is the same as that on the side wall.

It should be further noted that, for the corresponding relationship of the temperature-sensitive color-changing label to the temperature change, a descriptive text, an explanation symbol, or other information that can be learned by the consumer may be attached or sprayed on the outer surface of the packaging box and in a position different from the position where the temperature-sensitive color-changing label is disposed, or other ways that enable the consumer to learn the corresponding relationship of the temperature-sensitive color-changing label to the temperature change may be used.

Specifically, for the arrangement scheme of the temperature-sensitive color-changing label on the outer surface of the box body, as shown in fig. 1, fig. 2, and fig. 4, in one possible embodiment, the temperature-sensitive color-changing label 4 is arranged on the outer surface of the side wall 3, and the temperature-sensitive color-changing label 4 may be arranged on the outer surface of the middle portion of the side wall 3 along the direction that the box bottom 2 points to the box top 1; or, the temperature sensing color-changing label 4 is arranged on the outer surface of the end part of the side wall 3 facing the box top 1, and when the temperature sensing color-changing label 4 is arranged on the outer surface of the side wall 3, the temperature sensing color-changing label 4 is arranged on the middle upper part of the side wall 3, the temperature sensed by the temperature sensing color-changing label 4 is closer to the temperature of the drink in the packaging box, the color development of the temperature sensing color-changing label 4 shows that the temperature condition in the packaging box is more accurate, the temperature condition of the drink is more effectively shown, and the safety of consumers is protected.

It should be noted that, for understanding the end of the side wall, it may be: the side wall can be divided into three parts from top to bottom along the vertical direction, the end part of the side wall facing the box top is a part of the side wall extending downwards for a certain distance from the top end facing the box top, the end part of the side wall facing the box bottom is a part of the side wall extending upwards for a certain distance from the bottom end facing the box bottom, and the part between the two parts is the middle part of the side wall, wherein in the end part of the side wall facing the box top, the distance of the side wall downwards from the top end facing the box top is less than or equal to one third of the height of the side wall; in the end portion of the side wall facing the box bottom, the distance of the side wall extending upwards from the bottom end facing the box bottom is less than or equal to one third of the height of the side wall.

Specifically, on the basis of the above scheme of the packaging box, the form of the temperature-sensitive color-changing label 4 on the outer surface of the side wall 3 may be various, as shown in fig. 1 and fig. 2, the temperature-sensitive color-changing label 4 may be wound around the outer circumferential side of the side wall 3, and the annular temperature-sensitive color-changing label 4 may be circumferentially arranged along the circumferential direction of the side wall 3, so that the temperature-sensitive color-changing label can be displayed very obviously, thereby attracting the attention of the consumer, facilitating the observation of the consumer during color development, and improving the safety.

Specifically, for the structure of the side wall, a connecting longitudinal seam 21 is provided in the side wall 3 along the direction of the box bottom 2 to the box top 1, the two sides of the side wall 3 at the connecting longitudinal seam 21 are bonded and sealed, so that the circumferential direction of the side wall 3 is closed, and a cylindrical structure is formed, specifically, the cylindrical structure can be a rectangular shape, a square shape or a cylindrical shape, on the basis of which, as a way of arranging the temperature-sensitive color-changing label on the side wall, as shown in fig. 3 and 4, the temperature-sensitive color-changing label 4 can be arranged on the outer side surface of the side wall 3 away from the side surface where the connecting longitudinal seam 21 is located, or the temperature-sensitive color-changing label 4 can be arranged on the outer side surface of the side wall 3 adjacent to the side surface where the connecting longitudinal seam 21 is located, and the temperature-sensitive color-changing label 4 can be arranged as a temperature-sensitive color-changing label 4 with a specific shape, for example, a rectangular, triangular or circular shape, and can be obviously displayed, playing a good role in reminding.

As one possible embodiment of the structure of the box top, as shown in fig. 5 and 7, a jack 11 for inserting a straw is provided on the box top 1, when the temperature-sensitive color-changing label 4 is provided on the outer surface of the box top 1, the temperature-sensitive color-changing label 4 may be provided at a position on the peripheral side of the jack 11, and the temperature-sensitive color-changing label 4 is provided at a position on the box top 1 near the periphery of the jack 11, so that the temperature condition of the packing box can be easily noticed by a consumer, and the consumer can easily observe and understand.

And as to the shape structure of the box top, specifically, as shown in fig. 5, the box top 1 may be planar, and the insertion hole 11 may be at one corner of the box top 1, or, as shown in fig. 7, the box top 1 may be a wedge-shaped structure, the cross section of which is in an inverted "V" shape, and the insertion hole 11 may be disposed at one side of the wedge-shaped structure.

Specifically, on the basis of the scheme of the packaging box, as shown in fig. 3 to 6, the number of the temperature-sensitive color-changing labels 4 on the outer surface of the box body is at least one, and the number of the temperature-sensitive color-changing labels 4 on the outer surface of the box body can be one, two, three, or four, or other numbers, which is not limited in this embodiment.

In addition, on the basis of the above scheme of the packing box, as shown in fig. 8, the packing box may further include a straw 5, the straw 5 may be installed on the side wall 3 of the box body, a buckle may be disposed on the side wall 3, the buckle has a slot for cooperating with the straw 5, the straw 5 may be directly clamped in the slot to be fixed with the box body, or the straw 5 may be adhered to the outside of the side wall 3, specifically, the straw 5 itself may be a temperature-sensitive color-changing straw 5, the straw 5 is disposed closely to the box body, and may sense the temperature change of the box body to generate a color change, and as the temperature rises, the color of the straw 5 gradually becomes dark, so the straw 5 may also be used as a temperature-sensitive color-changing label 4 on the packing box to play a role of reminding, in addition, when the straw 5 is inserted into the box body from the insertion hole 11, the straw 5 may directly contact the beverage in the box body, and may more directly reflect the temperature of the beverage in the box body, the consumer can determine whether the drinking is suitable according to the color of the straw 5.

Specifically, to the fixed mode of setting of temperature sensing label that discolours on the box body, can multiple setting optional mode, if:

the first method is as follows:

as shown in fig. 4, 5 and 6, the temperature-sensitive color-changing label 4 can be attached to the outer surface of the sidewall 3 and/or the outer surface of the box top 1, that is, the temperature-sensitive color-changing label 4 is different from the box body and is attached to the outer surface of the box body, and is attached to the sidewall 3 or the outer surface of the box top 1, or both the sidewall 3 and the outer surface of the box top 1 are attached with the temperature-sensitive color-changing label 4. Specifically, the temperature-sensitive color-changing label 4 may include a temperature-sensitive color-changing layer, and the temperature-sensitive color-changing layer may be a temperature-sensitive ink layer.

The temperature-sensitive color-changing ink layer can be specifically a film layer structure which is prepared into an independent temperature-sensitive color-changing ink layer independently and is adhered to the outer surface of the box body in an adhering mode, and specifically, a temperature-sensitive color-changing label can be adhered to the box body through mechanized adhering equipment and is fixed on the box body; or the temperature-variable ink can be sprayed or printed at a corresponding position on the box body in a spraying or printing mode, and the temperature-variable ink is dried to form a temperature-variable ink layer; and, to the temperature change printing ink layer that spraying or printing formed, can be after packing the beverage in the packing carton, when the printing date, adopt temperature change printing ink to spout or print for the typeface shape of date, that is to say that the shape of temperature sensing color change label is the shape of date typeface, pastes on the box body surface, and at this moment, temperature sensing color change label both can show beverage filling time of leaving the factory, can play the warning effect again.

Specifically, in the first mode, the temperature-sensitive color-changing ink layer is a reversible temperature-sensitive ink layer, the color of the temperature-sensitive color-changing label gradually deepens along with the rise of the temperature, and gradually becomes lighter along with the fall of the temperature until the color state at the normal temperature is recovered, so that a consumer does not drink the beverage after heating, and the temperature-sensitive color-changing label can repeatedly play a role when needing to be heated again for drinking, and can still play a reminding role, thereby being beneficial to protecting the safety of the consumer;

or, the temperature-sensitive ink layer can also be an irreversible temperature-sensitive ink layer, when the color of the temperature-sensitive color-sensitive label changes along with the rise of the temperature, the color of the temperature-sensitive color-sensitive label does not change even if the temperature drops, and the color of the temperature-sensitive color-sensitive label stays at the color displayed when the box body reaches the highest temperature, so that a consumer can know the information that the beverage is heated, and the consumer can select whether to heat the beverage repeatedly according to personal preference; the packaging box can be used for filling some drinks which can not be heated repeatedly, when the drinks are heated and not eaten, a consumer is reminded that the drinks can not be heated again to be eaten, and the safety of the consumer is guaranteed.

On the scheme basis in above-mentioned mode one, temperature sensing discoloration label is still including transparent protective layer, and transparent protective layer is located one side that temperature sensing discoloration deviates from the box body and covers temperature sensing discoloration, and transparent protective layer covers in the temperature sensing discoloration outside, plays the guard action to temperature sensing discoloration.

The second method comprises the following steps:

the temperature-sensitive color-changing label can be formed in an outer structure layer of a paperboard of the box body, specifically, the box body is provided with a structure formed by folding an integral paperboard, the box body can be an integral structure formed by bending and folding integral paper, the paperboard is folded and adhered to form the box body, the paperboard is a composite paperboard with a multilayer structure, specifically, the paperboard at least comprises a supporting layer, a blocking layer arranged on the supporting layer and facing an inner accommodating space of the box body, and a PE (polyethylene, PE for short) layer arranged on the supporting layer and facing the outer part of the box body, at least one part of the PE layer is doped with temperature-sensitive ink particles to form the temperature-sensitive color-changing label, in the process of preparing and forming the paperboard, when the PE layer is prepared, some parts in the PE layer can be doped with the temperature-sensitive ink particles, because the PE layer can be a layer structure formed on the outer part of the box body by the paperboard, after the box body is formed by the paperboard, the temperature-sensitive color-changing label can be formed by the position, doped with temperature-sensitive ink particles, of the PE layer, and can be understood that one part of the outer surface layer of the side wall is set to be the temperature-sensitive color-changing label, the outer surface of the temperature-sensitive color-changing label is formed in the outer surface of the side wall and becomes one part of the outer surface of the side wall, the temperature-sensitive color-changing label is formed on the outer surface of the side wall, and the temperature-sensitive color-changing label displays color by sensing the temperature of the packaging box, reflects the temperature of the packaging box and plays a role in reminding.

Specifically, in the second mode, the temperature-sensitive color-changing ink particles are reversible temperature-sensitive ink particles, the color of the temperature-sensitive color-changing label gradually deepens with the rise of temperature, and gradually becomes lighter with the fall of temperature until the color state at normal temperature is recovered, so that a consumer does not drink the beverage after heating, and the temperature-sensitive color-changing label can repeatedly play a role when needing to be heated again for drinking, and can still play a reminding role, thereby being beneficial to protecting the safety of the consumer;

or, the temperature-sensitive ink particles can also be irreversible temperature-sensitive ink particles, and when the color of the temperature-sensitive color-changing label changes along with the rise of the temperature, the color of the temperature-sensitive color-changing label does not change even if the temperature drops, and the color of the temperature-sensitive color-changing label stays at the color displayed when the highest temperature of the box body is reached, so that a consumer can know the information that the beverage is heated, and the consumer can select whether to heat the beverage repeatedly according to personal preference; the packaging box can be used for filling some drinks which can not be heated repeatedly, when the drinks are heated and not eaten, a consumer is reminded that the drinks can not be heated again to be eaten, and the safety of the consumer is guaranteed.

It should be noted that, on the basis of the above-mentioned scheme of the packaging box, as for the temperature-sensitive color-changing label, it may be a temperature-sensitive color-changing label with a reversible color, or a temperature-sensitive color-changing label with an irreversible color, or when a plurality of temperature-sensitive color-changing labels are provided on the packaging box, one part of the labels may be set as the temperature-sensitive color-changing label with a reversible color, and the other part may be set as the temperature-sensitive color-changing label with an irreversible color, which may be selectively set according to actual requirements, and this embodiment is not limited.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A package, comprising:

2. A package according to claim 1, wherein when the outer surface of the side wall is provided with the temperature-sensitive color-changing label, the temperature-sensitive color-changing label is provided at a middle portion of the side wall in a direction in which the box bottom is directed to the box top, or the temperature-sensitive color-changing label is provided at an end portion of the side wall facing the box top.

3. The packaging box according to claim 1 or 2, wherein when the outer surface of the side wall is provided with the temperature-sensitive color-changing label, the temperature-sensitive color-changing label is provided around an outer peripheral side of the side wall.

4. The packaging box according to claim 2, wherein the side wall has a connecting longitudinal seam extending along the direction from the box bottom to the box top, and the temperature-sensitive color-changing label is disposed on an outer side surface of the side wall facing away from the connecting longitudinal seam, or the temperature-sensitive color-changing label is disposed on an outer side surface of the side wall adjacent to the side surface of the connecting longitudinal seam.

5. A packing box according to claim 1, wherein a jack for inserting a straw is provided on the box top, and when a thermochromic label is provided on an outer surface of the box top, the thermochromic label is located on a peripheral side of the jack.

6. A package as claimed in claim 1, wherein the thermochromic label is affixed to an outer surface of the side wall and/or an outer surface of the top.

7. The packaging box according to claim 6, wherein the temperature-sensitive color-changing label comprises a temperature-sensitive color-changing layer.

8. The packaging box according to claim 7, wherein the thermochromic layer is a thermochromic ink layer.

9. A package according to claim 8, wherein the temperature-sensitive ink layer is a reversible temperature-sensitive ink layer.

10. A package according to any of claims 7-9, wherein the thermochromic label comprises a transparent protective layer on the side of the thermochromic layer facing away from the box body and covering the thermochromic layer.

11. A package according to claim 1, wherein the case has a structure formed by folding a cardboard, and the cardboard comprises a support layer and a PE layer provided on the support layer and facing the outside of the case, and at least a part of the PE layer is doped with temperature-sensitive ink particles to form the temperature-sensitive color-changing label.

12. A package according to claim 1, wherein the top comprises a top seal and the bottom comprises a bottom seal, wherein the top seal strength is less than the bottom seal strength.