Sanitary napkin and sanitary napkin product

Abstract

This application provides a sanitary napkin and a sanitary napkin product. The sanitary napkin includes a main body and wings. The main body has a skin-friendly layer and a waterproof layer disposed opposite to each other. An adhesive backing is provided on the side of the waterproof layer away from the skin-friendly layer, for bonding with underwear. The wings are disposed on both sides of the main body, and wing adhesive is provided on the wings at the same position as the adhesive backing, for bonding with underwear. When the sanitary napkin is unfolded, the line connecting the wings on both sides of the main body forms a first axis, and on the plane of the sanitary napkin, the direction perpendicular to the first axis is a second axis. The adhesive backing includes at least two first adhesive backings arranged along the second axis; the second adhesive backing includes at least two second adhesive backings disposed along the second axis on both sides of the first adhesive backing, and the second adhesive backing is arranged along the first axis. The sanitary napkin provided by this application has moderate adhesive strength, is not easily detached from underwear, and is not overly tight.

Description

Technical Field

[0001] This application relates to the field of sanitary products technology, specifically to a sanitary napkin and sanitary napkin products. Background Technology

[0002] Sanitary napkins, a widely used feminine hygiene product, typically attach to underwear via adhesive. The backing adhesive is located in the center of the bottom of the product, forming the basic fixing system; the wing adhesive is located on the back of the side wings for side protection. The adhesive performance of the backing adhesive is often characterized by its peel strength, and its stickiness directly affects the user experience: excessive stickiness may lead to underwear fabric deformation, adhesive residue, difficulty in adjusting the position, or skin sensitivity; insufficient stickiness can easily cause product displacement, detachment, or leakage. Therefore, the design of the backing adhesive peel strength must strike a balance between adhesion and comfort.

[0003] The adhesive strength of sanitary napkins is affected by various factors, including the type of adhesive, coating area, amount of adhesive, bottom film substrate, and underwear material. Especially with the increasing diversity of underwear materials (such as pure cotton, modal, bamboo fiber, silk, and ice silk), different fabrics exhibit significant differences in adhesive performance. Current sanitary napkin products often use multiple vertical or horizontal adhesive strips arranged in the crotch area to balance adhesion range and flexibility. However, this design does not fully consider the differences in material between the crotch and front / back fabrics, resulting in unsatisfactory fixation in actual use, easily leading to displacement or poor adhesion. Therefore, it is necessary to develop a new adhesive placement scheme to adapt to the diverse structure of underwear materials, improving the fixation reliability and user comfort of sanitary napkins. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a sanitary napkin and a sanitary napkin product.

[0005] One embodiment of this application provides a sanitary napkin, comprising: a body having a skin-friendly layer and a waterproof layer disposed opposite to each other, the skin-friendly layer being for contact with human skin, and the waterproof layer being for preventing liquid leakage; an adhesive backing is disposed on the side of the waterproof layer away from the skin-friendly layer, the adhesive backing being for bonding with underwear; wings disposed on both sides of the body, and wing adhesive being disposed on the wings at the same position as the adhesive backing, the wing adhesive being for bonding with underwear; when the sanitary napkin is unfolded, the line connecting the wings on both sides of the body is a first axis, and on the plane of the sanitary napkin, the direction perpendicular to the first axis is a second axis; the adhesive backing includes at least a first adhesive backing and a second adhesive backing, the first adhesive backing including at least two, and the at least two first adhesive backings being arranged along the second axis; the second adhesive backing including at least two, and disposed on both sides of the first adhesive backing along the second axis, the second adhesive backing being arranged along the first axis.

[0006] In one embodiment, a sanitary napkin is applied to underwear, wherein when the underwear is made of at least one of polyester fiber and viscose fiber, the first adhesive backing comprises 6 strips and the second adhesive backing comprises 5 strips.

[0007] In one embodiment, a sanitary napkin is applied to underwear, wherein the crotch material of the underwear includes at least one of cotton fiber and bamboo fiber, and the front and back panels of the underwear include at least one of polyester fiber and viscose fiber, and the first adhesive backing includes 4 strips and the second adhesive backing includes 5 strips.

[0008] In one embodiment, a sanitary napkin is applied to underwear, wherein when the underwear is made of at least one of cotton fiber and bamboo fiber, the first adhesive backing comprises four strips and the second adhesive backing comprises three strips.

[0009] In one embodiment, a sanitary napkin is applied to underwear. When the material of the underwear crotch is at least one of polyester fiber and viscose fiber, and the material of the front and back panels is at least one of cotton fiber and bamboo fiber, the first adhesive backing includes 6 strips, and the second adhesive backing includes 3 strips.

[0010] In one embodiment, the first adhesive has a length of 4 mm along the first axial direction and a length of 120 mm along the second axial direction; the second adhesive has a length of 36 mm along the first axial direction and a length of 4 mm along the second axial direction.

[0011] In one embodiment, a first adhesive backing is spaced apart, and a second adhesive backing is spaced apart on the same side as the first adhesive backing.

[0012] In one embodiment, the wing protector adhesive is arranged along a second axial direction on the wing protector, and the wing protector adhesive includes at least two strips, which are spaced apart.

[0013] One embodiment of this application provides a sanitary napkin product, including the aforementioned sanitary napkin and a packaging bag, wherein the sanitary napkin is folded and packaged in the packaging bag.

[0014] In one embodiment, the packaging bag is printed with information about the applicable underwear material.

[0015] This application provides a sanitary napkin and a sanitary napkin product. The sanitary napkin includes a body and wings. An adhesive backing is provided on the waterproof layer of the body. The adhesive backing includes a first adhesive and a second adhesive, each consisting of at least two strips. When the sanitary napkin is unfolded, the first adhesive is arranged along a second axis, and the second adhesive is disposed on both sides of the first adhesive, arranged along a first axis. By providing the first and second adhesives, displacement of the sanitary napkin can be prevented. Furthermore, the number of strips of the first and second adhesives can be adjusted according to the material of the underwear to avoid problems such as excessive adhesion or insufficient bonding strength. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the sanitary napkin in Example 1;

[0017] Figure 2 This is a schematic diagram of the structure of the sanitary napkin in Example 2;

[0018] Figure 3 This is a schematic diagram of the structure of the sanitary napkin in Example 3;

[0019] Figure 4 This is a schematic diagram of the structure of the sanitary napkin in Example 4.

[0020] Figure label: Sanitary napkin-100, main body-110, wings-120, wing adhesive-121, first backing adhesive-130, second backing adhesive-140. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0022] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0023] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0024] Underwear materials primarily composed of natural fibers such as cotton and bamboo have a surface structure that facilitates thorough wetting of the adhesive, resulting in stable adhesion. Underwear materials primarily composed of polyester, ice silk (a type of viscose fiber), and silk have smooth surfaces and poor moisture absorption, making it difficult for the adhesive to effectively wet the fiber gaps, leading to insufficient adhesion. Silk materials are not only prone to slipping and falling off, but may also shrink and deform after washing, further weakening the adhesive's stability. This application designs different sanitary napkins for underwear made of different materials.

[0025] Example 1

[0026] This embodiment provides a sanitary napkin 100, please refer to... Figure 1 The sanitary napkin 100 includes the main body 110 and the wings 120.

[0027] The main body 110 has a skin-friendly layer and a waterproof layer arranged opposite to each other. The skin-friendly layer is for contact with human skin, and the waterproof layer is for preventing liquid leakage. An adhesive backing is provided on the side of the waterproof layer opposite to the skin-friendly layer for bonding with underwear. Wings 120 are disposed on both sides of the main body 110, and wing adhesive 121 is provided on the wing 120 at the same position as the adhesive backing for bonding with underwear. When the sanitary napkin 100 is unfolded, the line connecting the wings 120 on both sides of the main body 110 is the first axis, and the direction perpendicular to the first axis on the plane of the sanitary napkin 100 is the second axis. The adhesive backing includes at least two first adhesive backings 130 and at least two first adhesive backings 130 arranged along the second axis; the second adhesive backing includes at least two and is disposed on both sides of the first adhesive backing 130 along the second axis, and the second adhesive backing 140 is arranged along the first axis.

[0028] This application provides a first adhesive 130 and a second adhesive 140 on the sanitary napkin 100. The first adhesive 130 is arranged along a second axis, and the second adhesive 140 is arranged along a first axis. By adjusting the number of strips of the first adhesive 130 and the second adhesive 140, it can be adapted to underwear of different materials, thus avoiding the problem of the sanitary napkin 100 being too tightly bonded or easily falling off when it is bonded to the underwear.

[0029] When the sanitary napkin 100 in this embodiment is unfolded, its length along the second axis is 190mm. When the sanitary napkin 100 in this embodiment is applied to underwear, and the material of the underwear is at least one of polyester fiber and viscose fiber, the first adhesive 130 includes 6 strips, and the second adhesive 140 includes 5 strips. The length of the first adhesive 130 along the first axis is 4mm, and the length along the second axis is 120mm; the length of the second adhesive 140 along the first axis is 36mm, and the length along the second axis is 4mm.

[0030] Based on sanitary napkins 100 of different lengths, a first adhesive 130 and a second adhesive 140 of different sizes and numbers are designed to ensure the adhesive application range while maintaining the flexibility and comfort of the sanitary napkins 100.

[0031] The first adhesive backing 130 is spaced apart, and the second adhesive backing 140 located on the same side as the first adhesive backing 130 is spaced apart.

[0032] The sanitary napkin 100 in this embodiment also includes an absorbent core layer, which is disposed between the skin-friendly layer and the waterproof layer and is used to absorb liquid flowing in from the skin-friendly layer.

[0033] In this embodiment, the sanitary napkin 100 has three wing adhesive strips 121 arranged along the second axis on the wing 120. The three wing adhesive strips 121 are spaced apart.

[0034] Example 2

[0035] This embodiment provides a sanitary napkin 100, please refer to... Figure 2 The sanitary napkin 100 includes the main body 110 and the wings 120.

[0036] The main body 110 has a skin-friendly layer and a waterproof layer arranged opposite to each other. The skin-friendly layer is for contact with human skin, and the waterproof layer is for preventing liquid leakage. An adhesive backing is provided on the side of the waterproof layer opposite to the skin-friendly layer for bonding with underwear. Wings 120 are disposed on both sides of the main body 110, and wing adhesive 121 is provided on the wing 120 at the same position as the adhesive backing for bonding with underwear. When the sanitary napkin 100 is unfolded, the line connecting the wings 120 on both sides of the main body 110 is the first axis, and the direction perpendicular to the first axis on the plane of the sanitary napkin 100 is the second axis. The adhesive backing includes at least two first adhesive backings 130, arranged along the second axis; the second adhesive backing includes at least two, arranged along the second axis on both sides of the first adhesive backing 130, and arranged along the first axis.

[0037] This application provides a first adhesive 130 and a second adhesive 140 on the sanitary napkin 100. The first adhesive 130 is arranged along a second axis, and the second adhesive 140 is arranged along a first axis. By adjusting the number of strips of the first adhesive 130 and the second adhesive 140, it can be adapted to underwear of different materials, thus avoiding the problem of the sanitary napkin 100 being too tightly bonded or easily falling off when it is bonded to the underwear.

[0038] In this embodiment, the sanitary napkin 100, when unfolded, has a length of 190mm along the second axis. When the sanitary napkin 100 is applied to underwear, and the crotch material of the underwear includes at least one of cotton fiber and bamboo fiber, and the front and back panels of the underwear include at least one of polyester fiber and viscose fiber, the first adhesive backing 130 includes 4 strips, and the second adhesive backing 140 includes 5 strips. The first adhesive backing 130 has a length of 4mm along the first axis and a length of 120mm along the second axis; the second adhesive backing 140 has a length of 36mm along the first axis and a length of 4mm along the second axis.

[0039] Based on sanitary napkins 100 of different lengths, a first adhesive 130 and a second adhesive 140 of different sizes and numbers are designed to ensure the adhesive application range while maintaining the flexibility and comfort of the sanitary napkins 100.

[0040] The first adhesive backing 130 is spaced apart, and the second adhesive backing 140 located on the same side as the first adhesive backing 130 is spaced apart.

[0041] The sanitary napkin 100 in this embodiment also includes an absorbent core layer, which is disposed between the skin-friendly layer and the waterproof layer and is used to absorb liquid flowing in from the skin-friendly layer.

[0042] In this embodiment, the sanitary napkin 100 has three wing adhesive strips 121 arranged along the second axis on the wing 120. The three wing adhesive strips 121 are spaced apart.

[0043] Example 3

[0044] This embodiment provides a sanitary napkin 100, please refer to... Figure 3 The sanitary napkin 100 includes the main body 110 and the wings 120.

[0045] The main body 110 has a skin-friendly layer and a waterproof layer arranged opposite to each other. The skin-friendly layer is for contact with human skin, and the waterproof layer is for preventing liquid leakage. An adhesive backing is provided on the side of the waterproof layer opposite to the skin-friendly layer for bonding with underwear. Wings 120 are disposed on both sides of the main body 110, and wing adhesive 121 is provided on the wing 120 at the same position as the adhesive backing for bonding with underwear. When the sanitary napkin 100 is unfolded, the line connecting the wings 120 on both sides of the main body 110 is the first axis, and the direction perpendicular to the first axis on the plane of the sanitary napkin 100 is the second axis. The adhesive backing includes at least two first adhesive backings 130, arranged along the second axis; the second adhesive backing includes at least two, arranged along the second axis on both sides of the first adhesive backing 130, and arranged along the first axis.

[0046] This application provides a first adhesive 130 and a second adhesive 140 on the sanitary napkin 100. The first adhesive 130 is arranged along a second axis, and the second adhesive 140 is arranged along a first axis. By adjusting the number of strips of the first adhesive 130 and the second adhesive 140, it can be adapted to underwear of different materials, thus avoiding the problem of the sanitary napkin 100 being too tightly bonded or easily falling off when it is bonded to the underwear.

[0047] In this embodiment, the sanitary napkin 100, when unfolded, has a length of 190mm along the second axis. When the sanitary napkin 100 is applied to underwear, and the crotch material of the underwear is at least one of polyester fiber and viscose fiber, and the front and back panels are at least one of cotton fiber and bamboo fiber, the first adhesive backing 130 includes 6 strips, and the second adhesive backing 140 includes 3 strips. The first adhesive backing 130 has a length of 4mm along the first axis and a length of 120mm along the second axis; the second adhesive backing 140 has a length of 36mm along the first axis and a length of 4mm along the second axis.

[0048] Based on sanitary napkins 100 of different lengths, a first adhesive 130 and a second adhesive 140 of different sizes and numbers are designed to ensure the adhesive application range while maintaining the flexibility and comfort of the sanitary napkins 100.

[0049] The first adhesive backing 130 is spaced apart, and the second adhesive backing 140 located on the same side as the first adhesive backing 130 is spaced apart.

[0050] The sanitary napkin 100 in this embodiment also includes an absorbent core layer, which is disposed between the skin-friendly layer and the waterproof layer and is used to absorb liquid flowing in from the skin-friendly layer.

[0051] In this embodiment, the sanitary napkin 100 has three wing adhesive strips 121 arranged along the second axis on the wing 120. The three wing adhesive strips 121 are spaced apart.

[0052] Example 4

[0053] This embodiment provides a sanitary napkin 100, please refer to... Figure 4 The sanitary napkin 100 includes the main body 110 and the wings 120.

[0054] The main body 110 has a skin-friendly layer and a waterproof layer arranged opposite to each other. The skin-friendly layer is for contact with human skin, and the waterproof layer is for preventing liquid leakage. An adhesive backing is provided on the side of the waterproof layer opposite to the skin-friendly layer for bonding with underwear. Wings 120 are disposed on both sides of the main body 110, and wing adhesive 121 is provided on the wing 120 at the same position as the adhesive backing for bonding with underwear. When the sanitary napkin 100 is unfolded, the line connecting the wings 120 on both sides of the main body 110 is the first axis, and the direction perpendicular to the first axis on the plane of the sanitary napkin 100 is the second axis. The adhesive backing includes at least two first adhesive backings 130, arranged along the second axis; the second adhesive backing includes at least two, arranged along the second axis on both sides of the first adhesive backing 130, and arranged along the first axis.

[0055] This application provides a first adhesive 130 and a second adhesive 140 on the sanitary napkin 100. The first adhesive 130 is arranged along a second axis, and the second adhesive 140 is arranged along a first axis. By adjusting the number of strips of the first adhesive 130 and the second adhesive 140, it can be adapted to underwear of different materials, thus avoiding the problem of the sanitary napkin 100 being too tightly bonded or easily falling off when it is bonded to the underwear.

[0056] In this embodiment, the sanitary napkin 100, when unfolded, has a length of 190mm along the second axis. When the sanitary napkin 100 is applied to underwear, and the underwear is made of at least one of cotton fiber and bamboo fiber, the first adhesive backing 130 comprises four strips, and the second adhesive backing 140 comprises three strips. The first adhesive backing 130 has a length of 4mm along the first axis and a length of 120mm along the second axis; the second adhesive backing 140 has a length of 36mm along the first axis and a length of 4mm along the second axis.

[0057] Based on sanitary napkins 100 of different lengths, a first adhesive 130 and a second adhesive 140 of different sizes and numbers are designed to ensure the adhesive application range while maintaining the flexibility and comfort of the sanitary napkins 100.

[0058] The first adhesive backing 130 is spaced apart, and the second adhesive backing 140 located on the same side as the first adhesive backing 130 is spaced apart.

[0059] The sanitary napkin 100 in this embodiment also includes an absorbent core layer, which is disposed between the skin-friendly layer and the waterproof layer and is used to absorb liquid flowing in from the skin-friendly layer.

[0060] In this embodiment, the sanitary napkin 100 has three wing adhesive strips 121 arranged along the second axis on the wing 120. The three wing adhesive strips 121 are spaced apart.

[0061] Example 5

[0062] This embodiment provides a sanitary napkin product 100. Please refer to [reference needed]. Figure 1-4 The sanitary napkin 100 product includes the sanitary napkin 100 in Examples 1-4 and a packaging bag, wherein the sanitary napkin 100 is folded and packaged in the packaging bag.

[0063] In this embodiment, the packaging bag is printed with information about the applicable underwear material. For example, it may specify that the sanitary napkin 100 inside the packaging bag is suitable for underwear made of polyester fiber or viscose fiber; or it may specify that the sanitary napkin 100 inside the packaging bag is suitable for underwear with a crotch material of cotton fiber or bamboo fiber, and underwear with a front and back panel material of polyester fiber or viscose fiber, etc.

[0064] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A sanitary napkin, characterized in that, include: The body has a skin-friendly layer and a waterproof layer arranged opposite to each other. The skin-friendly layer is for contact with human skin, and the waterproof layer is for preventing liquid leakage. The waterproof layer has an adhesive backing on the side opposite to the skin-friendly layer, which is used to bond with the underwear. Wings are provided on both sides of the main body, and wing adhesive is provided on the wings at the same position as the backing adhesive, the wing adhesive being used to bond with the underwear; When the sanitary napkin is unfolded, the line connecting the two sides of the main body is the first axis, and the direction perpendicular to the first axis on the plane of the sanitary napkin is the second axis; the adhesive backing includes at least a first adhesive backing and a second adhesive backing, the first adhesive backing includes at least two strips, and the at least two strips of the first adhesive backing are arranged along the second axis; the second adhesive backing includes at least two strips, and is disposed on both sides of the first adhesive backing along the second axis, and the second adhesive backing is arranged along the first axis.

2. The sanitary napkin as described in claim 1, characterized in that, When a sanitary napkin is applied to underwear, and the underwear is made of at least one of polyester fiber and viscose fiber, the first adhesive backing comprises 6 strips and the second adhesive backing comprises 5 strips.

3. The sanitary napkin as described in claim 1, characterized in that, When a sanitary napkin is applied to underwear, and the crotch material of the underwear includes at least one of cotton fiber and bamboo fiber, and the front and back panels of the underwear include at least one of polyester fiber and viscose fiber, the first adhesive backing includes 4 strips, and the second adhesive backing includes 5 strips.

4. The sanitary napkin as described in claim 1, characterized in that, When a sanitary napkin is applied to underwear, and the underwear is made of at least one of cotton fiber and bamboo fiber, the first adhesive backing comprises four strips, and the second adhesive backing comprises three strips.

5. The sanitary napkin as described in claim 1, characterized in that, When a sanitary napkin is applied to underwear, and the material of the crotch of the underwear is at least one of polyester fiber and viscose fiber, and the material of the front and back panels is at least one of cotton fiber and bamboo fiber, the first adhesive backing includes 6 strips, and the second adhesive backing includes 3 strips.

6. The sanitary napkin according to any one of claims 2-5, characterized in that, The first adhesive has a length of 4 mm along the first axial direction and a length of 120 mm along the second axial direction; the second adhesive has a length of 36 mm along the first axial direction and a length of 4 mm along the second axial direction.

7. The sanitary napkin as described in claim 1, characterized in that, The first adhesive backing is spaced apart, and the second adhesive backing is spaced apart on the same side as the first adhesive backing.

8. The sanitary napkin according to any one of claims 1-5 and claim 7, characterized in that, The wing protector adhesive is arranged along the second axis on the wing protector, and the wing protector adhesive includes at least two strips, with the at least two wing protector adhesive strips spaced apart.

9. A sanitary napkin product, characterized in that, Includes a sanitary napkin and a packaging bag as described in any one of claims 1-8, wherein the sanitary napkin is folded and packaged in the packaging bag.

10. The sanitary napkin product as described in claim 9, characterized in that, The packaging bag is printed with information about the applicable underwear materials.

Images