Label paper and label assembly

Abstract

The utility model discloses label paper and a label assembly. The label paper comprises a bottom paper layer and a printing unit. The printing unit is arranged on the first surface of the backing paper layer in a stacked mode, the printing unit comprises a first bonding layer and a printing layer which are arranged in a stacked mode, the printing layer is detachably connected with the backing paper layer through the first bonding layer, and the printing layer continuously extends in the length direction of the backing paper layer. The printing layer continuously extends in the length direction of the bottom paper layer, so that all parts of the printing layer are connected together, the printing layer is of an overall continuous extending structure, and the printing layer has enough length and size to meet various requirements of customers.

Description

Technical Field

[0001] The present application relates to the field of label technology, and in particular to a label paper and a label assembly. Background Art

[0002] Label paper is a kind of iconic paper that can be affixed to objects for identification. Label paper usually includes a bottom layer and multiple printing units arranged on the bottom layer. The printing units can print words or barcodes and other identifications, so that users can know the price or other information of the object through the words or barcodes printed on the label units, which provides a lot of convenience for people's lives.

[0003] However, in the related art, multiple printing units are usually independent of each other and spaced apart along the length of the label paper. A single printing unit is small in size and can only print small-sized labels, which cannot meet the diverse needs of customers. Utility Model Content

[0004] The present application provides a label paper and a label assembly, wherein the printed layer has sufficient length and volume to meet various customer needs.

[0005] In a first aspect, the present application provides a label paper, comprising:

[0006] Bottom paper layer;

[0007] A printing unit is stacked on the first surface of the base paper layer, and the printing unit includes a first adhesive layer and a printing layer that are stacked. The printing layer is detachably connected to the base paper layer through the first adhesive layer, and the printing layer extends continuously along the length direction of the base paper layer.

[0008] In some embodiments, the base paper layer protrudes from the printing layer in the width direction of the base paper layer.

[0009] In some embodiments, a distance between an edge of the base paper layer and the printing layer along the width direction of the base paper layer is d1, and 0.5 mm ≤ d1.

[0010] In some embodiments, the label paper further includes: a laminating unit, laminated on the first surface of the base paper layer, the laminating unit and the printing unit are spaced apart along the width direction of the base paper layer, the laminating unit includes a second adhesive layer and a laminating layer laminated, the laminating layer is detachably connected to the base paper layer through the second adhesive layer, and the laminating layer extends continuously along the length direction of the base paper layer.

[0011] In some embodiments, the width of the coating layer is greater than or equal to the width of the printing layer.

[0012] In some embodiments, the sum of the width of the laminating layer and the width of the printing layer is less than the width of the base paper layer; and / or, the base paper layer protrudes from the laminating layer in the width direction of the base paper layer, and the distance between the edge of the base paper layer and the laminating layer along the width direction of the base paper layer is d2, 0.5 mm ≤ d2.

[0013] In some embodiments, a folding line is provided on the base paper layer, the folding line is located between the laminating unit and the printing unit, and extends along the length direction of the base paper layer, the first center line of the laminating layer and the second center line of the printing layer are symmetrically distributed about the folding line, the first center line is the center line extending along the length direction of the laminating layer, and the second center line is the center line extending along the length direction of the printing layer. The laminating layer can be folded along the folding line to be attached to the printing layer.

[0014] In some embodiments, the folding line is a folding tear line, which defines the base paper layer into a first area and a second area. The printed layer is arranged in the first area, and the laminate layer is arranged in the second area. The adhesion between the printed layer and the first area is greater than the adhesion between the laminate layer and the second area.

[0015] In some embodiments, the first adhesive layer is a pressure-sensitive adhesive layer, and the second adhesive layer is a double-sided adhesive layer.

[0016] In some embodiments, the spacing between the printing layer and the folding line along the width direction of the base paper layer is d3, and the spacing between the laminating layer and the folding line along the width direction of the base paper layer is d4; wherein, 0.5 mm ≤ d3; and / or, 0.5 mm ≤ d4.

[0017] In some embodiments, the distance between the edge of the base paper layer and the printing layer along the width direction of the base paper layer is d1, and the distance between the edge of the base paper layer and the coating layer along the width direction of the base paper layer is d2; wherein, 0.5 mm ≤ d1, 0.5 mm ≤ d2, d3 ≤ d1, d2 ≤ d4, and 0.5 mm ≤ (d3 + d4).

[0018] In some embodiments, the laminating unit further includes a third adhesive layer and a surface paper layer that are stacked together, and the surface paper layer is detachably connected to the laminating layer via the third adhesive layer.

[0019] In some embodiments, a cutting seam is provided on the cover paper layer, and the cutting seam extends along the length direction of the cover paper layer to define the cover paper layer into a first part and a second part.

[0020] In some embodiments, the cutting seam is located on a side of a third center line of the cover paper layer away from the printing unit, and the third center line is a center line extending along the length direction of the cover paper layer.

[0021] In some embodiments, the thickness of the printing unit is h1, the thickness of the laminating unit is h2, and |h1-h2| is less than 0.15 mm.

[0022] In a second aspect, the present application further provides a label assembly, comprising a roll and a label paper as described in any one of the above embodiments, wherein the label paper is wound on the roll.

[0023] The beneficial effects of the present application are as follows: the printing layer extends continuously along the length direction of the base paper layer, so that the various parts of the printing layer are connected to each other. The printing layer is an overall continuously extended structure. The printing layer has sufficient length and volume to meet the various needs of customers. Customers can print the required logo pattern on the printing layer, cut the printing layer, and obtain a label with a complete logo pattern. It can not only meet the printing of small-size logo patterns, but also meet the printing of large-size logo patterns, thereby meeting the diverse needs of customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative work.

[0025] Figure 1 This is a schematic structural diagram of a label paper in an embodiment of the present application at a first viewing angle;

[0026] Figure 2 This is a schematic structural diagram of a label paper in a second viewing angle according to an embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the structure of the label paper after removing the surface paper layer in one embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the structure after the laminating layer and the printing layer are attached in one embodiment of the present application;

[0029] Figure 5 This is a schematic structural diagram of the label paper after removing the top paper layer, the second adhesive layer, and the bottom paper layer on the laminating layer in one embodiment of the present application;

[0030] Figure 6 This is a schematic structural diagram of a label assembly in one embodiment of the present application.

[0031] Reference numerals:

[0032] 10. Label paper; 11. Base paper layer; 111. First surface; 112. Second surface; 113. Folding line; 114. First area; 115. Second area; 12. Printing unit; 121. First adhesive layer; 122. Printing layer; 13. Laminating unit; 131. Second adhesive layer; 132. Laminating layer; 133. Third adhesive layer; 134. Top paper layer; 134a. Cutting seam; 134b. First part; 134c. Second part; 20. Roll. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0034] The present application provides a label paper and a label assembly to solve the problem in the related art that the multiple printing units on the label paper are usually independent of each other and are spaced apart along the length direction of the label paper. The volume of a single printing unit is small and can only meet the printing of small-sized labels, and cannot meet the diverse needs of customers.

[0035] In the first aspect, the present application provides a label paper 10, such as Figure 1 and Figure 2 As shown, the label paper 10 includes a base paper layer 11 and a printing unit 12. The printing unit 12 is laminated on the first surface 111 of the base paper layer 11. The printing unit 12 includes a first adhesive layer 121 and a printing layer 122, which are laminated and detachably connected to the base paper layer 11 via the first adhesive layer 121. It is understood that the label paper 10, the base paper layer 11, and the printing unit 12 are all in the form of a long strip. The base paper layer 11 is used to support the printing unit 12. The printing layer 122 in the printing unit 12 can be printed with words or a barcode or other identification pattern. During use, the base paper layer 11 is torn to separate the base paper layer 11 from the first adhesive layer 121. The first adhesive layer 121 remains connected to the printing layer 122. The printing layer 122 can then be affixed to an item to be labeled via the first adhesive layer 121, allowing customers to obtain the item's price or other information through the printed layer 122 affixed to the item. Among them, the base paper layer 11 can be release paper, which is a release paper made of paper coated with a release material, making it easier to separate the base paper layer 11 from the first adhesive layer 121, preventing the first adhesive layer 121 from being separated from the printing layer 122 when the base paper layer 11 is torn off.

[0036] Specifically, the printing layer 122 extends continuously along the length direction of the base paper layer 11, so that various parts of the printing layer 122 are connected to each other. The printing layer 122 is a structure that extends continuously as a whole. The printing layer 122 has sufficient length and volume to meet the various needs of customers. The customer can print the logo pattern to be printed on the printing layer 122, and then cut the printing layer 122 to obtain a label with a complete logo pattern. It can not only meet the printing needs of small-size logo patterns, but also meet the printing needs of large-size logo patterns, thereby meeting the diverse needs of customers.

[0037] In some embodiments, the base paper layer 11 protrudes beyond the print layer 122 in the width direction of the base paper layer 11, that is, in the width direction of the base paper layer 11, the print layer 122 is "retracted" relative to the base paper layer 11, so that the edge of the print layer 122 is located within the area defined by the base paper layer 11. The base paper layer 11 can form a stepped structure with the print layer 122, which is convenient for the user to move the edge of the base paper layer 11 and tear the base paper layer 11 apart, making it easier to separate the base paper layer 11 from the print layer 122. At the same time, the base paper layer 11 can also be used to provide protection for the edge of the print layer 122 to prevent the edge of the print layer 122 from being scratched by other objects. In addition, during the production process, due to factors such as processing errors, the print layer 122 may partially deviate during the processes of attaching, cutting, and winding, causing part of the print layer 122 to extend out of the base paper layer 11. By "retracting" the print layer 122 relative to the base paper layer 11, it is possible to effectively prevent the print layer 122 from extending out of the base paper layer 11 due to processing errors.

[0038] Furthermore, the distance between the edge of the base paper layer 11 and the printed layer 122 along the width direction of the base paper layer 11 is d1, and 0.5 mm ≤ d1. This ensures sufficient distance between the printed layer 122 and the edge of the base paper layer 11. The processing error is generally less than 0.5 mm, effectively preventing the printed layer 122 from extending beyond the base paper layer 11 due to processing error. d1 can be 0.5 mm, 0.7, 0.9, 1 mm, or other values.

[0039] Continue to see Figure 1 and Figure 2As shown, in some embodiments of the present application, the label paper 10 further includes a laminating unit 13, which is laminated on the first surface 111 of the base paper layer 11. The laminating unit 13 and the printing unit 12 are spaced apart along the width direction of the base paper layer 11. The laminating unit 13 includes a laminated second adhesive layer 131 and a laminating layer 132. The laminating layer 132 is detachably connected to the base paper layer 11 via the second adhesive layer 131, and the laminating layer 132 extends continuously along the length direction of the base paper layer 11. It is understandable that the laminating unit 13 and the printing unit 12 are located on the same side (first surface 111) of the base paper layer 11, and the laminating layer 132 can be attached to the side of the printing layer 122 away from the first adhesive layer 121 (such as by bending the portion of the base paper layer 11 between the laminating unit 13 and the printing unit 12). Figure 4 ), the coating layer 132 can be used to protect the logo pattern on the printed layer 122 to prevent the logo pattern from being scratched during use, and the coating layer 132 is also an overall continuously extended structure, which can meet the protection needs of logo patterns of various sizes.

[0040] Furthermore, the width of the coating layer 132 is greater than or equal to the width of the printed layer 122 , so that the coating layer 132 can cover the printed layer 122 , thereby providing better protection for the logo pattern on the printed layer 122 .

[0041] The overlay layer 132 is a transparent film layer, such as a transparent PET film. While the overlay layer 132 provides protection for the logo pattern, it also prevents the overlay layer 132 from obstructing the logo pattern. After the overlay layer 132 is applied to the side of the printed layer 122 away from the first adhesive layer 121, the portion of the base paper layer 11 connected to the overlay layer 132 can be torn off to prevent the base paper layer 11 from obstructing the logo pattern.

[0042] In some embodiments, the sum of the width of the laminating layer 132 and the width of the printing layer 122 is smaller than the width of the base paper layer 11, so that in the width direction of the base paper layer 11, the laminating layer 132 can also "shrink" relative to the base paper layer 11, so that the edge of the laminating layer 132 is also located within the area defined by the base paper layer 11. The laminating layer 132 can form a stepped structure with the printing layer 122, which is convenient for the user to move the edge of the base paper layer 11 and tear the base paper layer 11, making it easier to separate the base paper layer 11 from the laminating layer 132.

[0043] In some embodiments, the base paper layer 11 protrudes beyond the coating layer 132 in the width direction of the base paper layer 11. The distance between the edge of the base paper layer 11 and the coating layer 132 along the width direction of the base paper layer 11 is d2, and 0.5 mm ≤ d2. This allows the coating layer 132 to "shrink" relative to the base paper layer 11, and there is sufficient distance between the coating layer 132 and the edge of the base paper layer 11. d2 can be 0.5 mm, 0.7, 0.9, 1 mm, or other values.

[0044] In some embodiments, a folding line 113 is provided on the base paper layer 11. The folding line 113 is located between the laminating unit 13 and the printing unit 12 and extends along the length direction of the base paper layer 11. The first center line L1 of the laminating layer 132 and the second center line L2 of the printing layer 122 are symmetrically distributed about the folding line 113. The first center line L1 is the center line extending along the length direction of the laminating layer 132, and the second center line L2 is the center line extending along the length direction of the printing layer 122. The laminating layer 132 can be folded along the folding line 113 to cover the printing layer 122. It should be noted that since the first center line L1 and the second center line L2 are symmetrical about the folding line 113, when it is necessary to cover the laminating layer 132 on the printing layer 122, the base paper layer 11 can be folded along the folding line 113 (such as Figure 4 ), so that the coating layer 132 covers the printing layer 122, at this time, the first center line L1 can coincide with the second center line L2 in the thickness direction of the base paper layer 11, and thus the coating layer 132 and the base paper layer 11 can be accurately aligned and attached, making the attachment of the coating layer 132 more accurate and convenient.

[0045] Among them, the folding line 113 can be a marking line formed on the base paper layer 11 by a marking line, the folding line 113 can also be a tangent line formed by cutting or a folding mark line formed by pre-folding, and the folding line 113 can be formed on the first surface 111 and / or the second surface 112, and the second surface 112 is the surface on the side of the base paper layer 11 opposite to the first surface 111.

[0046] In some embodiments, the folding line 113 is a folding tear line, which defines the base paper layer 11 into a first area 114 and a second area 115. The printed layer 122 is arranged in the first area 114, and the coating layer 132 is arranged in the second area 115. The adhesion between the printed layer 122 and the first area 114 is greater than the adhesion between the coating layer 132 and the second area 115, so that after the coating layer 132 is attached to the printed layer 122, the base paper layer 11 connected to the coating layer 132 (that is, the portion of the base paper layer 11 located in the first area 114) can be torn along the folding tear line, so that the base paper layer 11 is separated from the coating layer 132. Since the adhesion between the printed layer 122 and the base paper layer 11 is greater, the printed layer 122 can still remain connected to the second area 115 of the base paper layer 11 (such as Figure 5 ), when the printed layer 122 is not needed immediately, the label paper 10 can be stored in this state to prevent adhesion between the parts of the printed layer 122; in addition, the folded tear line makes it easier to tear off the base paper layer 11 and makes it easier to separate the part of the base paper layer 11 located in the first area 114 from the part located in the second area 114.

[0047] Among them, the first adhesive layer 121 can be a pressure-sensitive adhesive layer, and the second adhesive layer 131 can be a double-sided adhesive layer. Compared with the double-sided adhesive layer, the pressure-sensitive adhesive layer has greater viscosity, so that the adhesion between the printed layer 122 and the base paper layer 11 can be greater than the adhesion between the coating layer 132 and the base paper layer 11, and the double-sided adhesive layer is easier to remove, so that when the base paper layer 11 connected to the coating layer 132 (that is, the part of the base paper layer 11 located in the first area 114) is torn off, the second adhesive layer 131 can be torn off together with the base paper layer 11 (that is, the second adhesive layer 131 and the base paper layer 11 remain in a stuck state and are separated from the coating layer 132), so that the base paper layer 11 and the coating layer 132 are separated, preventing the second adhesive layer 131 from causing the coating layer 132 to adhere to other objects.

[0048] In some embodiments, the distance between the printed layer 122 and the fold line 113 along the width direction of the base paper layer 11 is d3, and the distance between the laminate layer 132 and the fold line 113 along the width direction of the base paper layer 11 is d4, wherein 0.5 mm ≤ d3 and / or 0.5 mm ≤ d4. This ensures that there is sufficient distance between the printed layer 122 and the fold line 113 and / or between the laminate layer 132 and the fold line 113 to prevent the printed layer 122 and / or the laminate layer 132 from covering the fold line 113 due to factors such as processing errors. d3 can be 0.5 mm, 0.7, 0.9, 1 mm, or other values, and d4 can be 0.5 mm, 0.7, 0.9, 1 mm, or other values.

[0049] In some embodiments, d2≤d4, d3≤d1, 0.5 mm≤(d3+d4), so as to ensure that the distance between the laminating layers 132 (i.e., d3+d4) is large enough so that when the base paper layer 11 is folded along the folding line 113, the laminating layer 132 can cover the printing layer 122, while reducing the distance between the laminating layers 132, thereby saving consumables as much as possible.

[0050] Continue to see Figure 2 As shown, in some embodiments of the present application, the laminating unit 13 further includes a stacked third adhesive layer 133 and a surface paper layer 134, the surface paper layer 134 being detachably connected to the laminating layer 132 through the third adhesive layer 133, and the surface paper layer 134 can protect the laminating layer 132 when the laminating layer 132 does not need to be attached to the printing layer 122, while preventing dust from adhering to the third adhesive layer 133. Before the laminating layer 132 is attached to the printing layer 122, the surface paper layer 134 can be torn off to separate the surface paper layer 134 from the third adhesive layer 133, and the third adhesive layer 133 remains connected to the laminating layer 132, and then the base paper layer 11 is bent, and the laminating layer 132 is attached to the printing layer 122 through the third adhesive layer 133. The cover paper layer 134 may also be a release paper, so that the cover paper layer 134 can be more easily separated from the third adhesive layer 133 , thereby preventing the third adhesive layer 133 from being separated from the coating layer 132 when the cover paper layer 134 is torn off.

[0051] In some embodiments, when the laminating layer 132 is attached to the printed layer 122 via the third adhesive layer 133, the adhesion between the laminating layer 132 and the printed layer 122 is greater than the adhesion between the laminating layer 132 and the base paper layer 11. This allows the laminating layer 132 and the printed layer 122 to remain connected when the base paper layer 11 connected to the laminating layer 132 is torn off. Specifically, the third adhesive layer 133 may be a double-sided adhesive layer, so that the adhesion between the laminating layer 132 and the printed layer 122 is greater than the adhesion between the laminating layer 132 and the base paper layer 11.

[0052] In some embodiments, a cutting seam 134a is provided on the surface paper layer 134, and the cutting seam 134a extends along the length direction of the surface paper layer 134 to define the surface paper layer 134 into a first portion 134b and a second portion 134c. The cutting seam 134a makes the surface paper layer 134 easier to tear. When the coating layer 132 is attached to the printing layer 122, the first portion 134b and the second portion 134c can be torn along the cutting seam 134a first, and the first portion 134b is separated from the third adhesive layer 133, and the second portion 134c is removed. 34c is still connected to the third adhesive layer 133, and then the part of the third adhesive layer 133 corresponding to the first part 134b is adhered to the printed layer 122 and aligned, and then the second part 134c is torn off to separate from the third adhesive layer 133, and then the entire third adhesive layer 133 is adhered to the printed layer 122, so that the coating layer 132 can be more accurately attached to the printed layer 122, and dust and other dirt can be prevented from adhering to the third adhesive layer 133 during the attachment process, affecting the bonding effect of the third adhesive layer 133.

[0053] Furthermore, the cutting seam 134a is located on a side of the top paper layer 134 that is away from the printing unit 12, on a third centerline L3. The third centerline L3 is a centerline extending along the length of the top paper layer 134. This increases the distance between the cutting seam 134a and the printed layer 122, thereby reducing the pulling force exerted on the printed layer 122 when the top paper layer 134 is torn along the cutting seam 134a. This prevents the printed layer 122 from separating from the base paper layer 11 when the top paper layer 134 is torn. The third centerline L3 is parallel to the first centerline L1. In some embodiments, the third centerline L3 may also coincide with the first centerline L1 in the thickness direction of the laminating unit 13.

[0054] In some embodiments, the thickness of the printing unit 12 is h1, the thickness of the laminating unit 13 is h2, and |h1-h2| is less than 0.15 mm, that is, the absolute value of the difference between h1 and h2 is less than 0.15 mm. This prevents a significant difference in thickness between the printing unit 12 and the laminating unit 13, and prevents unevenness caused by a significant difference in thickness between multiple layers of the label paper 10 when the label paper 10 is wound in multiple layers. In some embodiments, the absolute value of the difference between h1 and h2 can be 0.14 mm, 0.12 mm, 0.1 mm, or other values.

[0055] like Figures 2 to 5 As shown, Figures 2 to 5 132 is a schematic diagram of a process of attaching the coating layer 132 to the printing layer 122 in some embodiments. Before attaching the coating layer 132 to the printing layer 122, the surface paper layer 134 can be torn off first, so that the surface paper layer 134 is separated from the third adhesive layer 133 (e.g., Figure 3), then fold the base paper layer 11 along the folding line 113 so that the laminating layer 132 is attached to the printing layer 122 through the third adhesive layer 133 (such as Figure 4 ), and then tear the bottom paper layer 11 on the film layer 132 along the folding line 113, so that the bottom paper layer 11 is separated from the film layer 132, and the second adhesive layer 131 on the film layer 132 is taken away. Figure 5 ), so that the surface of the coating layer 132 is smooth.

[0056] In the second aspect, based on the above-mentioned label paper 10, the present application also provides a label assembly, such as Figure 6 As shown, the label assembly includes a roll 20 and a label paper 10 as in any one of the above embodiments, and the label paper 10 is wound on the roll 20.

[0057] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A label paper, characterized in that: include: Bottom paper layer; A printing unit is stacked on the first surface of the base paper layer, and the printing unit includes a first adhesive layer and a printing layer that are stacked. The printing layer is detachably connected to the base paper layer through the first adhesive layer, and the printing layer extends continuously along the length direction of the base paper layer.

2. The label paper according to claim 1, characterized in that: The base paper layer protrudes from the printing layer in the width direction of the base paper layer.

3. The label paper according to claim 2, characterized in that: The distance between the edge of the base paper layer and the printing layer along the width direction of the base paper layer is d1, and 0.5 mm ≤ d1.

4. The label paper according to claim 1, characterized in that: The label paper also includes: A laminating unit is stacked on the first surface of the base paper layer, the laminating unit and the printing unit are arranged at intervals along the width direction of the base paper layer, the laminating unit includes a second adhesive layer and a laminating layer stacked, the laminating layer is detachably connected to the base paper layer through the second adhesive layer, and the laminating layer extends continuously along the length direction of the base paper layer.

5. The label paper according to claim 4, characterized in that: The width of the coating layer is greater than or equal to the width of the printing layer.

6. The label paper according to claim 4, characterized in that: The sum of the width of the laminating layer and the width of the printing layer is smaller than the width of the base paper layer; and / or, The base paper layer protrudes from the covering layer in the width direction of the base paper layer. The distance between the edge of the base paper layer and the covering layer along the width direction of the base paper layer is d2, and 0.5 mm ≤ d2.

7. The label paper according to claim 4, characterized in that: A folding line is provided on the base paper layer, the folding line is located between the laminating unit and the printing unit, and extends along the length direction of the base paper layer. The first center line of the laminating layer and the second center line of the printing layer are symmetrically distributed about the folding line. The first center line is the center line extending along the length direction of the laminating layer, and the second center line is the center line extending along the length direction of the printing layer. The laminating layer can be folded along the folding line to be attached to the printing layer.

8. The label paper according to claim 7, characterized in that: The folding line is a folding tear line, which defines the base paper layer into a first area and a second area. The printed layer is arranged in the first area, and the laminate layer is arranged in the second area. The adhesion between the printed layer and the first area is greater than the adhesion between the laminate layer and the second area.

9. The label paper according to claim 8, characterized in that: The first adhesive layer is a pressure-sensitive adhesive layer, and the second adhesive layer is a double-sided adhesive layer.

10. The label paper according to claim 7, characterized in that: The distance between the printing layer and the folding line along the width direction of the base paper layer is d3, and the distance between the laminating layer and the folding line along the width direction of the base paper layer is d4; Among them, 0.5 mm ≤ d3; and / or, 0.5 mm ≤ d4.

11. The label paper according to claim 10, characterized in that: The distance between the edge of the base paper layer and the printing layer along the width direction of the base paper layer is d1, and the distance between the edge of the base paper layer and the coating layer along the width direction of the base paper layer is d2; Among them, d3≤d1, d2≤d4, 0.5 mm≤(d3+d4).

12. The label paper according to claim 4, characterized in that: The laminating unit further includes a third adhesive layer and a surface paper layer which are stacked together, and the surface paper layer is detachably connected to the laminating layer via the third adhesive layer.

13. The label paper according to claim 12, characterized in that: A cutting seam is provided on the surface paper layer, and the cutting seam extends along the length direction of the surface paper layer to define the surface paper layer into a first part and a second part.

14. The label paper according to claim 13, characterized in that: The cutting seam is located on a side of a third center line of the surface paper layer away from the printing unit, and the third center line is a center line extending along the length direction of the surface paper layer.

15. The label paper according to claim 4, characterized in that: The thickness of the printing unit is h1, the thickness of the laminating unit is h2, and |h1-h2| is less than 0.15 mm.

16. A label assembly comprising a roll and the label paper according to any one of claims 1 to 15, wherein the label paper is wound on the roll.

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