A new type of absorbent product to prevent side leakage

Abstract

The utility model relates to the field of disposable sanitary products, and specifically to a novel side leakage prevention absorbent product, comprising a liquid permeable surface layer, an absorbent core layer and a liquid impermeable bottom layer stacked from top to bottom, the length direction of the absorbent product is defined as the longitudinal direction, the width direction is the transverse direction, and the liquid impermeable bottom layer located on both sides of the absorbent core layer is symmetrically provided with leakage prevention side sheets, the leakage prevention side sheets are composed of a water-repellent sheet material folded and wrapped with a number of fine denier spandex yarns, the number of the spandex yarns is 1-20, the model is 10-400 denier, and the spandex yarns are arranged at equal intervals and the interval is 0.1-10 mm. When the absorbent product is worn, the height of the side leakage prevention sheet standing up is not more than 15 mm. The utility model solves the problem of insufficient comfort of the existing side leakage prevention structure of sanitary napkins.

Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary products, in particular to a novel side leakage-proof absorbent product. Background Art

[0002] A sanitary napkin is a sanitary product used by women during menstruation, and generally has three layers: a surface layer, an absorbent core, and a bottom layer. However, most general sanitary napkin products do not have the function of preventing side leakage, or only have strip structures slightly higher than the surface on both sides of the absorbent core to form a leakage-proof structure. As shown in Chinese patent application CN 107212967 A, a fast-seepage puncture sanitary napkin includes a surface layer, an absorbent body, and a bottom film. The absorbent body is connected between the surface layer and the bottom film. The fast-seepage puncture sanitary napkin forms a plurality of penetration holes that penetrate the surface layer and the absorbent body through puncture. The edge of the surface layer is also provided with a side leakage prevention strip, and the side leakage prevention strip is a single-layer folding structure. This structure is to fix the water-repellent sheet in a folded form to form a leakage-proof structure; and this structure is different from the traditional diaper product that contains elastic parts inside to realize the form of the partition edge standing up. This leakage-proof partition edge structure obviously does not have sufficient side leakage prevention function; and if the leakage-proof partition edge of the traditional diaper product is used, it cannot be applied to sanitary napkin products with a smaller thickness, which greatly affects the comfort. Utility Model Content

[0003] Therefore, the utility model provides a novel side leakage prevention absorbent product, which solves the problem of insufficient comfort of the existing side leakage prevention structure of sanitary napkins.

[0004] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0005] A novel side leakage prevention absorbent product, comprising a liquid permeable surface layer, an absorbent core layer and a liquid impermeable bottom layer stacked from top to bottom, wherein the length direction of the absorbent product is defined as the longitudinal direction and the width direction is defined as the transverse direction, and the liquid impermeable bottom layer located on both sides of the transverse direction of the absorbent core layer is symmetrically provided with leakage prevention side sheets, the leakage prevention side sheets are composed of a water-repellent sheet folded and wrapped with a plurality of fine-denier spandex yarns, the number of the spandex yarns is 1-20, the model is 10-400 denier, the spandex yarns are arranged at equal intervals and the interval is 0.1-10 mm, and when the absorbent product is worn, the height of the side leakage prevention sheet standing up is not more than 15 mm.

[0006] Preferably, the leak-proof side panel is folded to form an asymmetric folded structure having a long end and a short end, wherein the short end is located above the absorbent core, the long end is located laterally outside the absorbent core, and a structural support member extending longitudinally is provided on the long end.

[0007] Preferably, the structural support member is a linear elastic member bonded and compounded on the long end.

[0008] Preferably, the structural support member is a water-absorbing sheet bonded and compounded on the long end.

[0009] Preferably, the structural support member is a pressed portion formed by hot pressing the long end.

[0010] By adopting the above technical solution, the beneficial effects of the utility model are:

[0011] This technical solution adopts fine-denier spandex yarn material with better softness and is applied to sanitary napkin products to form a corresponding anti-side leakage structure. Compared with the anti-leakage structure of diaper products, the height of the anti-leakage side panels formed is designed to avoid excessive protrusions, and multiple fine-denier spandex yarns are distributed at equal intervals to ensure the softness of the end that contacts the human body to meet the comfort requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the planar structure in the implementation mode of the utility model;

[0013] Figure 2 It is a schematic diagram of the stacked structure in the embodiment of the utility model;

[0014] Figure 3 A schematic diagram of a stacked structure of another structure in an embodiment of the present utility model

[0015] Figure 4 A schematic diagram of a stacked structure of another structure in an embodiment of the utility model;

[0016] Figure 5 It is a schematic diagram of a stacked structure of another structure in an embodiment of the present utility model.

[0017] Figure numerals: 1, liquid-permeable surface layer; 2, absorbent core layer; 3, liquid-impermeable bottom layer; 4, leak-proof side panels; 41, spandex yarn; 42, linear elastic member; 43, water-absorbent sheet; 44, pressing portion; 4a, long end; 4b, short end. DETAILED DESCRIPTION

[0018] The following will describe the implementation methods of the present invention in detail in conjunction with specific embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] refer to Figure 1 and Figure 2A novel side leakage prevention absorbent product, wherein a sanitary napkin is used as the main product, and comprises a liquid-permeable surface layer 1, an absorbent core layer 2 and a liquid-impermeable bottom layer 3 stacked from top to bottom, wherein the length direction of the sanitary napkin is defined as the longitudinal direction, and the width direction is defined as the transverse direction, and the liquid-impermeable bottom layer 3 located on both sides of the absorbent core layer 2 in the transverse direction is symmetrically provided with leakage-proof side sheets 4, wherein the leakage-proof side sheets 4 are composed of a water-repellent sheet folded and wrapped with a plurality of fine-denier spandex yarns 41, wherein the number of the spandex yarns 41 is 1-20, and the model is 10-400 denier, and each of the said The spandex yarns 41 are arranged at equal intervals and the intervals are 0.1-10 mm; the number of the models here can be reduced accordingly according to the increase of the denier ("denier" means the density unit of nylon textile fiber in the fixed length system, denier), the specific number here is 10, the model is 50 denier, and the distance between adjacent ones is 2 mm, so as to achieve a more balanced softness and structural elasticity; when the absorbent product is worn, the height of the anti-side leakage sheet is not more than 15 mm, and the height here is improved according to the different product sizes, which is not limited here. This technical solution adopts fine-denier spandex yarns 41 materials with better softness, which are applied to sanitary napkin products to form a corresponding anti-side leakage structure. Compared with the anti-leakage structure of diaper products, the height of the anti-leakage side sheet 4 formed is designed to avoid excessive protrusions, and multiple fine-denier spandex yarns 41 are distributed at equal intervals to ensure the softness of the end in contact with the human body to meet the comfort requirements.

[0020] Structurally, the leak-proof side panel 4 is folded to form an asymmetric folded structure with a long end 4a and a short end 4b, and each spandex yarn 41 is embedded in the short end 4b; the short end 4b is located above the absorbent core, and the long end 4a is located laterally outside the absorbent core, and a structural support member extending longitudinally is provided on the long end 4a; when the product is in use, the long end 4a is fixed in position, and the short end 4b is free from the liquid-permeable surface layer 1, and the short end 4b is placed above the absorbent core layer 2 due to the action of the spandex yarn 41, and has a shrinking effect; and the long end 4a is provided as a retaining structure for the leak-proof side panel 4.

[0021] Under the above structure, the structure of the leak-proof side sheet 4 has the following usage structure:

[0022] First, if Figure 3 As shown, the structural support member is a linear elastic member 42 bonded and compounded on the long end 4a. The linear elastic member 42 is arranged on the long end 4a and can serve as another contraction structure of the leak-proof side sheet 4 in structure, so that the contraction structure transition between the long end 4a and the short end 4b is uniform, and the shape gradually changes from bottom to top, the shape is more beautiful, and the structural firmness of the bonding position of the long end 4a is also improved;

[0023] Second, if Figure 4As shown, the structural support member is a water-absorbing sheet 43 bonded and compounded on the long end 4a. Different from the structure of adding the linear elastic member 42, the water-absorbing sheet 43 is provided to increase the instantaneous water absorption capacity of the leak-proof side sheet 4 under the premise of water repellency, thereby reducing the probability of side leakage caused by failure to quickly absorb a large amount of liquid; and the water-absorbing sheet 43 can also provide structural support for the leak-proof side sheet 4 after bonding;

[0024] Third, if Figure 5 As shown, the structural support member is a pressing portion 44 formed by hot pressing the long end 4a; this structure is different from the structure of the absorbent sheet 43. It is pretreated before the leak-proof side sheet 4 is compounded to form a pressing portion 44 structure with a certain structural toughness to achieve a structural support effect; if applied in production, it can simplify the production process during compounding, save materials and reduce costs.

[0025] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A novel side leakage prevention absorbent product, comprising a liquid permeable surface layer (1), an absorbent core layer (2) and a liquid impermeable bottom layer (3) stacked from top to bottom, wherein the length direction of the absorbent product is defined as the longitudinal direction and the width direction is defined as the transverse direction, and the characteristics are: Leakage-proof side panels (4) are symmetrically arranged on the liquid-impermeable bottom layer (3) on both lateral sides of the absorbent core layer (2). The leakage-proof side panels (4) are composed of a water-repellent sheet folded and wrapped with a number of fine-denier spandex yarns (41). The number of the spandex yarns (41) is 1-20, and the model is 10-400 denier. The spandex yarns (41) are arranged at equal intervals and the interval is 0.1-10 mm. When the absorbent article is worn, the height of the side leakage-proof panels is no more than 15 mm.

2. A novel side leakage preventing absorbent article according to claim 1, characterized in that: The leak-proof side panel (4) is folded to form an asymmetrical folded structure having a long end (4a) and a short end (4b), wherein the short end (4b) is located above the absorbent core, and the long end (4a) is located laterally outside the absorbent core, and a structural support member extending longitudinally is provided on the long end (4a).

3. A novel side leakage preventing absorbent article according to claim 2, characterized in that: The structural support member is a linear elastic member (42) bonded and composited to the long end (4a).

4. A novel side leakage preventing absorbent article according to claim 2, characterized in that: The structural support member is a water-absorbing sheet material (43) bonded and compounded on the long end (4a).

5. A novel side leakage preventing absorbent article according to claim 2, characterized in that: The structural support member is a pressed portion (44) formed by hot pressing the long end (4a).

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