Suspended absorption article

The absorbent material, with its fully suspended two-piece structure, utilizes a raised section formed by an elastic and stretchable first bottom layer and interlayer to solve the problem of displacement during movement, achieving better contact with the skin and greater comfort.

CN223627703UActive Publication Date: 2025-12-05ZHIBANG (TIANJIN) SANITARY PROD TECH CO LTD
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Patent Information

Application Number
CN202422521469.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-12-05
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

Existing absorbent products tend to shift or move during use, especially during exercise, leading to poor skin contact and discomfort. Existing improvement solutions, such as CN118415823A, have separation zones that result in the outer and inner layers being too loose, affecting comfort.

Method used

It adopts a fully suspended two-piece structure, including a top layer, an absorbent layer, a first bottom layer and an adhesive layer stacked together. By setting an elastically stretchable first bottom layer and an interlayer in the middle area to form a protrusion, the joint remains connected in the side area, the interlayer separates in the middle area, and the interlayer and adhesive layer form a protrusion, which increases friction and reduces looseness.

Benefits of technology

This allows absorbent products to better contact the skin during use, improving comfort, expanding the range of people who can use them, reducing the feeling of looseness, and enhancing absorption efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a suspension type absorption article which comprises a body with the length direction, the width direction and the thickness direction, the body comprises a middle area, an upper side area and a lower side area in the length direction, the body comprises a first part and a second part in the thickness direction, the first part comprises a surface layer, an absorption layer and a first bottom layer which are arranged in a stacked mode, and the second part comprises a second bottom layer and a third bottom layer which are arranged in a stacked mode. The first part comprises an upper side area and a lower side area, the second part comprises a laminating layer and a second bottom layer which are laminated, the first part and the second part are combined in the upper side area and the lower side area and are in a separated state in the middle area, and the second part further comprises an interlayer which is located between the laminating layer and the second bottom layer and enables one part of the laminating layer to form a convex part; the first bottom layer is configured to form elastic stretching in the middle area along the length, through the arrangement, the main absorption area can be more easily in a central protruding state, meanwhile, the situation that the first part and the second part are too loose or flexible in the middle area can be reduced, the use comfort is improved, and the adaptive crowd is expanded.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of absorption article field, specifically to a kind of suspension type absorption article. BACKGROUND

[0002] Sanitary napkin, panty liner, paper diaper and other absorption articles are widely used in people's daily life, in order to prevent the occurrence of body fluid leakage and other situations, usually, a component called three-dimensional containment is provided on the absorption article, the three-dimensional containment is contracted by elastic material, so that the side edge material forming the three-dimensional containment is erected, thereby forming a vertical barrier on both sides.

[0003] However, in use, it is found that the absorption article such as sanitary napkin is usually adhered to the underpants by back adhesive, so that the side of the absorption article facing the skin cannot be well kept in contact with the skin, especially when the underpants are loose or during exercise, the position of the absorption article is lower, and under the action of gravity, it is more likely to move downward or displace downward, so that the absorption article is more difficult to keep in contact or fit with the skin. The current solution proposed by people, such as the patent document with document number CN101090691A and the name of sanitary napkin, proposes to set a raised portion on the side of the main body close to the skin, which corresponds to the crotch portion. However, this way makes the raised portion always "sandwiched" between the crotch portion, but in actual use, some people feel very uncomfortable.

[0004] In further improvement, document CN118415823A proposes to set a separation zone through the width direction of the body in the middle of the body, and to set an elastic zone corresponding to the separation zone on the inner bottom layer, to keep the shape or make the main absorption zone in a raised state to form a fit state with the skin, and to make the absorption article itself have greater and more flexible deformation with the movement of the skin / body during exercise, thereby improving comfort. However, in practice, the following problems still exist: since the outer bottom layer is thin, and the separation zone is set in the middle, the outer bottom layer and the inner bottom layer are too loose and flexible between the separation zone in the middle, thereby forming discomfort for some people.

[0005] Therefore, further improvement is needed to solve the above problems. UTILITY MODEL CONTENT

[0006] Therefore, the utility model provides a full-suspension two-piece absorption article to solve the above technical problems.

[0007] A suspension type absorbent article, comprising a body having a length direction, a width direction and a thickness direction, wherein the body comprises a middle region and upper and lower side regions on both sides of the middle region along the length direction of the body, and comprises a first portion and a second portion along the thickness direction of the body, wherein the first portion comprises a surface layer, an absorbent layer and a first bottom layer arranged in layers, the second portion comprises a fit layer and a second bottom layer arranged in layers, the first portion and the second portion are combined in the upper and lower side regions and are in a separated state in the middle region, the second portion further comprises an interlayer between the fit layer and the second bottom layer, and a part of the fit layer forms a protruding portion, and the first bottom layer is configured to be elastically stretchable along the length direction in the middle region.

[0008] The interlayer is in a strip shape, and the length direction of the interlayer is parallel to the length direction of the body, and the width of the interlayer is less than or equal to 1 / 2 of the length of the interlayer.

[0009] The protruding portion 141 has a height greater than or equal to 2 mm.

[0010] The middle region comprises a main absorbent region, and the interlayer is arranged correspondingly to the main absorbent region.

[0011] The main absorbent region comprises a central raised region formed by a flow guide groove around the periphery of the central raised region, the flow guide groove is in a waist shape and comprises first and second linear indentations on both sides, and the first and second linear indentations each comprise an inner concave portion and an outer convex portion.

[0012] The first and second linear indentations comprise a minimum spacing therebetween, the width of the interlayer is 1 / 3 to 1 / 2 of the minimum spacing, and the length of the interlayer is 80% to 120% of the length of the first linear indentation.

[0013] The wing comprises a separated main wing portion and an upper wing portion, the main wing portion is a part of the second portion, the upper wing portion is a part of the first portion, and the width of the main wing portion is greater than the width of the upper wing portion.

[0014] The first portion and the second portion comprise a first combining portion between them in the upper side region, and a second combining portion between them in the lower side region.

[0015] The first bottom layer has an elongation at break greater than or equal to 110% along the length direction.

[0016] Beneficial effects: the utility model discloses a kind of suspension type absorbent articles, including, with length direction, width direction and thickness direction body, wherein, along the length direction of the body includes middle part area and the upper side area, lower side area located in upper side area upper and lower sides, along the thickness direction of the body includes first part and second part, wherein, the first part includes the laminated surface layer, absorption layer and first bottom layer, the second part includes the laminated adhesion layer and second bottom layer, the first part and second part are combined in upper side area, lower side area, and in middle part area, it is in separation state,The second part further includes interlayer between adhesion layer and second bottom layer and makes a part of adhesion layer form protruding portion, the first bottom layer is configured to be in middle part area can be formed elastic expansion along length, by above-mentioned setting, main absorption area can be more easily presented as central protruding state, while, it can reduce the situation that first part and second part are too loose or flexible in middle part area, and improve use comfort and expand adaptive population. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model embodiment's absorbent article body front view;

[0018] Figure 2 For Figure 1 Middle A-A cross section schematic view;

[0019] Figure 3 For Figure 2 Middle C area amplification schematic view;

[0020] Figure 4 For Figure 1 Middle B-B cross section schematic view.

[0021] Body 10;Middle part area 101;Main absorption area 1001;Main wing portion 1002;Upper wing portion 1003;First linear indentation 1004;Second linear indentation 1005;Upper side area 102;Lower side area 103;First part 104;Second part 105;Surface layer 11;Absorption layer 12;First bottom layer 13;Adhesion layer 14;Protruding portion 141;Interlayer 15;Second bottom layer 16;First combination 17. DETAILED DESCRIPTION

[0022] The utility model embodiment provides a kind of full-suspension two-piece type absorbent articles, below will be further explained to the present application with reference to drawings.

[0023] Meanwhile, it needs to be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] Please refer to the accompanying Figures 1 to 4 The absorbent article provided in the embodiments of the present application comprises a body 10, the body 10 is generally in the shape of a strip, comprising a length direction, a width direction and a thickness direction, in which the length direction is the up-down direction, the width direction is the left-right direction, and the thickness direction is the direction perpendicular to the paper surface, in which the body 10 is formed in the shape of a strip, and the length direction of the body 10 is the up-down direction, the width direction is the left-right direction, and the thickness direction is the direction perpendicular to the paper surface. Figure 1 Figure 2 Figure 4 The cross-sectional schematic view of the body 10 along the thickness direction at the corresponding position is shown in the drawings, the body 10 comprises a middle part 101 and upper side part 102 and lower side part 103 located on the upper and lower sides of the middle part 101 along the length direction of the body 10, generally, the middle part 101 further comprises a main absorption area 1001, the main absorption area 1001 is the area corresponding to the body fluid discharge area, at the same time, the absorbent article further comprises a wing, the wing is generally located on the left and right sides of the main absorption area 1001, generally, the wing protrudes from the body 10, and at least a part of the wing can be reversely folded and attached and fixed to the underwear.

[0025] The body 10 comprises a first part 104 and a second part 105 along the thickness direction of the body 10, wherein the first part 104 comprises a surface layer 11, an absorption layer 12 and a first bottom layer 13 arranged in layers, the surface layer 11 is arranged on the side close to the skin of the user, and the surface layer 11 should be at least partially liquid-permeable, the meaning of liquid-permeable is that the body fluid can pass through the surface layer 11 into the structural layer below the surface layer 11, such as the absorption layer 12, generally, the body fluid can also diffuse along the surface layer 11 to further improve the absorption efficiency of the absorption body to the body fluid.

[0026] The at least partially liquid-permeable means that at least the area of the surface layer 11 corresponding to the body fluid discharge area is liquid-permeable, and the body fluid discharge area can be the position of the vaginal orifice, urethral orifice and the like.

[0027] Since the surface layer 11 is in contact with the skin, it is preferred to select a material with low irritation and softness, such as the weight per unit area of 10-60 g / m 2 ​​Sheet materials such as gauze, cotton cloth, spunlace nonwoven fabric, and hot-air nonwoven fabric are preferred. More preferably, hot-air nonwoven fabric is made of thermoplastic synthetic fibers. As the synthetic fibers constituting the hot-air nonwoven fabric, polyethylene (PE) fiber, polypropylene (PP) fiber and other polyolefin fibers, polyester fibers, nylon and other polyamide fibers, etc. can be used. In some optional embodiments, natural fibers or viscose fibers can also be added at the same time to further reduce skin irritation. These natural fibers can include wood fibers, cotton fibers, etc.

[0028] The absorbent layer 12 is stacked below the surface layer 11. Specifically, the absorbent layer 12 is a three-dimensional network structure formed by several entangled fibers connected appropriately. Several pores are distributed between the three-dimensional network structure, through which body fluids can be absorbed and diffused. In a preferred embodiment, superabsorbent polymer (SAP) is included between the three-dimensional network structure to further absorb and retain body fluids through the superabsorbent polymer. It is understood that the fibers can be fluff pulp.

[0029] Furthermore, the absorbent layer 12 may also include a covering layer, which covers or coats the three-dimensional network structure. The covering layer is a liquid-permeable material; in some specific embodiments, it may be non-woven fabric or toilet paper. Preferably, the covering layer is soft, for example, having a weight per unit area of ​​10–60 g / m². 2 Sheet materials such as gauze, cotton cloth, spunlace nonwoven fabric, hot air nonwoven fabric, and toilet paper are preferred, and more preferably, the covering layer has a lower basis weight than the surface layer 11.

[0030] The first bottom layer 13 is stacked below the absorbent layer 12. To prevent bodily fluids from seeping through the top layer 11 and contaminating the user's clothing, the first bottom layer 13 is made of a water-repellent material. The top layer 11 and the first bottom layer 13 are bonded along the edge of the first bottom layer 13, so that the top layer 11 and the first bottom layer 13 are bonded together to form an outer perimeter. The top layer 11 and the first bottom layer 13 are arranged along their edges to form an accommodating space. The absorbent layer 12 is accommodated within the accommodating space. The bonding refers to the connection of the bonded materials to form a whole. Typically, this can be achieved through heat fusion or adhesive bonding. Heat fusion can be achieved by heating the material itself to its melting point, causing it to partially melt and solidify to form a bond. Alternatively, external energy such as ultrasound can be applied to the material to cause localized high-temperature melting and solidification to form a bond. Adhesion can be achieved by using an adhesive to bond adjacent materials together.

[0031] The second part 105 includes an adhesive layer 14 and a second bottom layer 16 stacked together, wherein the adhesive layer 14 can have a unit area weight of 10-60 g / m².2 The second base layer 16 is preferably a water repellent material, and a connecting member such as a back adhesive is provided on the back side of the second base layer 16 and the surface layer 11 to fix the body 10 to an undergarment. Further, a protection member such as a release paper can be provided to prevent the connecting member from being used unintentionally.

[0032] The first portion 104 and the second portion 105 are combined at the upper side region 102 and the lower side region 103 and separated at the middle region 101. More specifically, the first portion 104 and the second portion 105 are combined by a first combining portion 17 at the upper side region 102, and combined by a second combining portion 18 at the lower side region 103. The first portion 104 and the second portion 105 are separated at the middle region 101. The separation means that a separation region extending in the width direction of the body 10 is provided between the first portion 104 and the second portion 105 at the middle region 101, and the first portion 104 and the second portion 105 are completely separated at the middle region 101. It is understood that the first portion 104 and the second portion 105 are combined as a whole by the first combining portion 17 and the second combining portion 18, and the first portion 104 and the second portion 105 are not separated during use.

[0033] In the present embodiment, the first combining portion 17 is realized by providing an adhesive layer between the first base layer 13 and the surface layer 14 to adhere the first base layer 13 and the surface layer 14 at the upper side region 102. Similarly, the second combining portion 18 is realized by providing another adhesive layer between the first base layer 13 and the surface layer 14 to adhere the first base layer 13 and the surface layer 14 at the lower side region 103. No adhesive layer is provided between the first base layer 13 and the surface layer 14 at the middle region 101.

[0034] In addition, the first base layer 13 is configured to be elastically stretchable in the length direction at the middle region 101. More specifically, the first base layer 13 includes an elastic region at the middle region 101, and the elastic region has an elastic force in the length direction. The first base layer 13 has a breaking elongation of 110% or more in the length direction. The breaking elongation is the ratio of the elongation to the initial length of the material at the time of breaking, and is used to measure the toughness and plasticity of the material. It is understood that the first base layer 13 has at least the breaking elongation to have sufficient stretchability. Further, the first base layer 13 is an elastic film, and more preferably, the elastic film is a TPU elastic film.

[0035] The second part 105 further comprises a layer 15 between the adhesive layer 14 and the second bottom layer 16, and the layer 15 makes a part of the adhesive layer 14 form a protruding part 141. The adhesive layer and the second bottom layer 16 are combined along the outer side of the layer 15 to form a peripheral combined area. It can be understood that the protruding part 141 is formed in the position corresponding to the layer 15 by arranging the layer 15, and the whole second part 105 is in a middle protruding shape. In practice, the following effects are achieved by the above arrangement:

[0036] 1. The middle protruding of the second part 105 is caused by the layer 15. When the first part 104 is in a protruding state in the position corresponding to the protruding part 141 during use, the main absorption area 1001 is naturally in a protruding shape even if the first part 104 is not treated to be raised. Therefore, the main absorption area 1001 can better contact the body fluid discharge area to absorb the body fluid.

[0037] 2. The protruding part 141 is formed in the middle of the adhesive layer 14. The friction between the protruding part 141 and the first bottom layer 13 is increased by the abutting of the protruding part 141 and the first bottom layer 13, or the first bottom layer 13 is further nested in the protruding part 141. Therefore, the looseness or flexibility of the first part 104 and the second part 105 in the middle area 101 is reduced, but the separation of the separation area is not affected. Therefore, the use comfort is improved and the population is expanded.

[0038] Further, the layer 15 is in a strip shape, and the length direction of the layer 15 is parallel to the length direction of the body 10. At the same time, the width of the layer 15 is less than or equal to 1 / 2 of the length of the layer 15, and more preferably, the width of the layer 15 is less than or equal to 1 / 4 of the length of the layer 15. Therefore, the first bottom layer 13 and the adhesive layer 14 can more easily move relative to each other in the length direction of the body 10, and are not easily moved relative to each other in the width direction.

[0039] Further, the protruding part 141 has a height greater than or equal to 2 mm. More specifically, the height of the protruding part 141 refers to the height difference between the top surface of the protruding part 141 and the peripheral combined area.

[0040] Further, the main absorption area 1001 comprises a central raised area formed by a flow guide groove around the periphery thereof. Specifically, the flow guide groove is in a waist shape, and comprises first linear indentations 1004 and second linear indentations 1005 on the left and right sides. The first linear indentations 1004 and the second linear indentations 1005 respectively comprise inner recesses and outer protrusions, and the inner recesses form a raised part towards the middle.

[0041] Further, the first linear indentation 1004 and the second linear indentation 1005 include a minimum spacing, the width of the interlayer 15 is 1 / 3-1 / 2 of the minimum spacing, further, the length of the interlayer 15 is 80%-120% of the length of the first linear indentation 1004, that is, the convex part 141 corresponds to the central raised area.

[0042] Further, the wing includes a separate main wing part 1002 and an upper wing part 1003, the main wing part 1002 is a part of the second part 105, the upper wing part 1003 is a part of the first part 104, at the same time, the width of the main wing part 1002 is greater than the width of the upper wing part 1003, so that the main wing part 1002 protrudes from the upper wing part 1003, when the main wing part 1002 is reversely folded and fixed on the underwear, the upper wing part 1003 can be attached to the skin in the lateral direction, thereby preventing body fluid from overflowing in the lateral direction and making the user more comfortable.

[0043] The above is only the embodiment of the present application, and does not limit the patent range of the present application, any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A suspension absorbent article comprising a body having a length direction, a width direction and a thickness direction, characterized in that, The body comprises a middle region and upper and lower regions on both sides of the middle region along the length direction of the body, and comprises a first part and a second part along the thickness direction of the body, wherein the first part comprises a surface layer, an absorbing layer and a first bottom layer arranged in layers, the second part comprises a fit layer and a second bottom layer arranged in layers, the first part and the second part are combined in the upper and lower regions and are in a separated state in the middle region, the second part further comprises an interlayer between the fit layer and the second bottom layer, and a part of the fit layer forms a protruding part, and the first bottom layer is configured to be elastically stretchable along the length in the middle region.

2. The suspended absorbent article of Claim 1, wherein, The interlayer is in a strip shape, and the length direction of the interlayer is parallel to the length direction of the body, and the width of the interlayer is less than or equal to 1 / 2 of the length of the interlayer.

3. The suspended absorbent article of Claim 1 wherein, The protruding part has a height greater than or equal to 2 mm.

4. The suspended absorbent article of claim 1 wherein, The middle region comprises a main absorbing region, and the interlayer is arranged correspondingly to the main absorbing region.

5. The suspended absorbent article of Claim 4, wherein, The main absorbing region comprises a central raised region formed by a flow guide groove around the periphery of the central raised region, the flow guide groove is in a waist shape and comprises first and second linear indentations on both sides, and the first and second linear indentations each comprise an inner concave part and an outer convex part.

6. The suspended absorbent article of Claim 5, wherein, The first and second linear indentations comprise a minimum spacing therebetween, the width of the interlayer is 1 / 3 to 1 / 2 of the minimum spacing, and the length of the interlayer is 80% to 120% of the length of the first linear indentation.

7. The suspended absorbent article of Claim 6, wherein, The suspension type absorbing article further comprises a wing, the wing comprises a separated main wing part and an upper wing part, the main wing part is a part of the second part, the upper wing part is a part of the first part, and the width of the main wing part is greater than the width of the upper wing part.

8. The suspended absorbent article of Claim 6, wherein, The first part and the second part comprise a first combining part in the upper region and a second combining part in the lower region.

9. The suspended absorbent article of claim 6, wherein, The first bottom layer has an elongation at break greater than or equal to 110% along the length direction.

Citation Information

Patent Citations

  • Sanitary napkin

    CN101090691A

  • Full-suspension two-piece type absorption article

    CN118415823A