CN220175389U - Self-shrinkage elastic close-fitting leak-proof sanitary towel - Google Patents

Abstract

The utility model provides a self-shrinkage elasticity leak protection sanitary towel next to skin, including surface course, water conservancy diversion layer, absorption sandwich layer, elastic structure and bottom, still including setting up two separate limits in the surface course both sides for liquid can pass through surface course, water conservancy diversion layer and absorption sandwich layer in proper order, and at absorption sandwich layer storage, through the setting surface liquid follow side and bottom seepage of bottom and separate limit, owing to be equipped with elastic structure between absorption sandwich layer and bottom again, elastic structure material itself possesses the resilience, but make sanitary towel retractile and laminating more with the health when using, avoided leaking and social embarrassment because of not laminating the side that arouses.

Description

Self-shrinkage elastic close-fitting leak-proof sanitary towel

Technical Field

The utility model relates to the technical field of sanitary napkins, in particular to a self-shrinkage elastic close-fitting leak-proof sanitary napkin.

Background

Absorbent articles such as sanitary napkins, panty liners, and diapers are widely used in daily life of people, and generally, these absorbent articles include a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent core interposed between the top sheet and the back sheet, through which body fluid is absorbed and held, and at the same time, in order to prevent side leakage of body fluid in the lateral direction, a leakage preventing barrier is generally provided in the lateral direction.

At present, sanitary towel products on the market are all planar, and the core absorption area is inelastic, so that the sanitary towel can only be attached to the body curve as far as possible by lifting of underpants when being worn. Even some brands of sanitary napkins are stiff and have poor fit with the female body, which can lead to side leakage and social embarrassment caused by the fact that the sanitary napkins are not attached.

Disclosure of Invention

The utility model provides a self-shrinkage elastic close-fitting leak-proof sanitary towel, which aims to solve the problem of poor fitting property of the sanitary towel with a human body.

In one embodiment, a self-retracting, resilient, body-fitting, leak-proof sanitary napkin is provided, comprising:

a facing layer disposed in contact with the skin;

the diversion layer is arranged on one side of the surface layer far away from the skin and is used for absorbing diversion liquid;

the absorption core layer is arranged on one side of the diversion layer away from the surface layer and is used for absorbing and storing liquid;

the elastic structure is arranged on one side of the absorption core layer away from the diversion layer;

a bottom layer arranged on one side of the elastic structure away from the absorbent core layer, and the other side is used for contacting with clothes;

and two isolation edges, wherein the two isolation edges are positioned on two opposite sides of the surface layer.

In one embodiment, the elastic structure comprises a plurality of elastomers, a plurality of said elastomers being spaced between the backsheet and the absorbent core.

In one embodiment, the elastic body has a longitudinal direction along the length direction and a transverse direction along the width direction, a plurality of elastic bodies are arranged in a rectangular structure in a point-to-point mode, the long side of the rectangular structure is parallel to the longitudinal direction, and the short side of the rectangular structure is parallel to the transverse direction.

In one embodiment, the elastic structure has a longitudinal direction along the length direction and a transverse direction along the width direction, and the transverse dimension of the elastic structure is less than or equal to the transverse dimension of the absorbent core.

In one embodiment, the bottom layer extends out of the absorbent core layer in the transverse direction and is joined with the barrier edge to form two wings, and the longitudinal dimension of the wings is smaller than the longitudinal dimension of the elastic structure.

In one embodiment, the elastomer has a stretch ratio greater than 1.5.

In one embodiment, the elastic body is one of a rubber band, an elastic film and an elastic waistline.

In one embodiment, the spacer comprises a joint and a fixing structure, the joint comprises a first joint, a second joint and a third joint, the first joint, the second joint and the third joint are sequentially arranged along the length direction, the second joint comprises at least three leakage-proof layers, the first joint and the second joint each comprise at least one leakage-proof layer, and the first joint and the second joint are fixed with the surface layer through the fixing structure so that the second joint stands up along the direction perpendicular to the surface layer, and the longitudinal dimension of the second joint is the same as the longitudinal dimension of the elastic structure.

In one embodiment, the second joint portion includes a first leakage preventing layer, a second leakage preventing layer, and a third leakage preventing layer, which are sequentially folded by the barrier in a direction perpendicular to the facing layer, and a lateral dimension of the first leakage preventing layer is smaller than a lateral dimension of the second leakage preventing layer.

In one embodiment, the barrier has a longitudinal direction along the length direction and a transverse direction along the width direction, and the barrier is folded in a direction perpendicular to the facing layer to form a first leakage preventing layer, a second leakage preventing layer, and a third leakage preventing layer, the transverse dimension of the first leakage preventing layer being smaller than the transverse dimension of the second leakage preventing layer.

According to the embodiment, the self-shrinkage elastic close-fitting leak-proof sanitary towel comprises a surface layer, a diversion layer, an absorption core layer, an elastic structure and a bottom layer, and further comprises two isolation edges arranged on two sides of the surface layer, so that liquid can sequentially pass through the surface layer, the diversion layer and the absorption core layer, and the liquid can leak from the side surface and the bottom through the bottom layer and the isolation edges when being stored in the absorption core layer.

Drawings

FIG. 1 is a plan view of a self-contracting, resilient, body-fitting, leak-proof sanitary napkin in one embodiment;

FIG. 2 is a schematic illustration of the bonding of a side panel to a face panel in one embodiment;

FIG. 3 is a schematic view of a second joint in an embodiment;

FIG. 4 is a process flow diagram of a self-contracting, resilient, close-fitting, leak-proof sanitary napkin according to one embodiment, the process flow being performed alphabetically;

FIG. 5 is a schematic diagram illustrating a second joint according to an embodiment;

wherein: 1. the surface layer, 2, the partition, 21, the joint part, 211, the first joint part, 212, the second joint part, 2121, the first leakage-proof layer, 2122, the second leakage-proof layer, 2123, the third leakage-proof layer, 213, the third joint part, 3, the guide layer, 4, the absorbent core layer, 5, the elastic structure, 6, the bottom layer, 7, the back adhesive layer, 8 and the release paper.

Detailed Description

The utility model will be described in further detail below with reference to the drawings by means of specific embodiments. Wherein like elements in different embodiments are numbered alike in association. In the following embodiments, numerous specific details are set forth in order to provide a better understanding of the present utility model. However, one skilled in the art will readily recognize that some of the features may be omitted, or replaced by other elements, materials, or methods in different situations. In some instances, related operations of the present utility model have not been shown or described in the specification in order to avoid obscuring the core portions of the present utility model, and may be unnecessary to persons skilled in the art from a detailed description of the related operations, which may be presented in the description and general knowledge of one skilled in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operational steps involved in the embodiments may be sequentially exchanged or adjusted in a manner apparent to those skilled in the art. Accordingly, the description and drawings are merely for clarity of describing certain embodiments and are not necessarily intended to imply a required composition and/or order.

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated.

Referring to fig. 1-3, in one embodiment, a self-shrinking elastic body-fitting leak-proof sanitary napkin is provided, having a longitudinal direction along the length direction and a transverse direction along the width direction, comprising a facing layer 1, a baffle layer 3, an absorbent core layer 4 and a backsheet 6 disposed sequentially from the skin side to the garment side of the human body, and further comprising two barrier ribs 2 disposed on both sides of the facing layer 1.

Wherein the surface layer 1 is arranged to be in contact with the skin and has certain liquid permeability for liquid diversion; the diversion layer 3 is arranged on one side of the surface layer 1 far away from the skin and is used for absorbing diversion liquid; the absorption core layer 4 is arranged on one side of the diversion layer 3 far away from the surface layer 1, has water absorption and hydrophilicity and is used for absorbing and storing liquid; the bottom layer 6 is arranged on one side of the elastic structure 5 away from the absorbent core layer 4, and the other side is used for contacting with clothes, and the bottom layer 6 has liquid impermeability and can prevent liquid from leaking to the clothes; the two barriers 2 are symmetrically disposed on two lateral sides of the surface layer 1, and at least partially engage with the surface layer 1 through a joint portion 21, so as to avoid liquid side leakage.

In one embodiment, the surface layer 1, the diversion layer 3, the absorbent core layer 4 and the bottom layer 6 are fixedly connected by gluing. Of course, other manners, such as thermal compression or stitching, may be used.

Specifically, in this embodiment, glue is applied by spraying, and compared with a conventional glue application method, the glue application method of spraying glue on the surface of the material not only can reduce the glue application amount and reduce the influence of glue on the downward seepage of liquid, but also can avoid the glue from overflowing out of the mesh part of the water-repellent all-cotton spunlaced non-woven fabric to adhere to the skin, so that the finally manufactured sanitary product finished product is ensured not to adhere to the skin, and the stability of fixed connection is ensured.

In order to improve the fitting degree between the sanitary towel and the human body and reduce the problems of leakage and social embarrassment caused by non-fitting, an elastic structure 5 is arranged between the absorption core layer 4 and the bottom layer 6.

The elastic structure 5 is arranged on the partition 2, and the elastic structure 5 is arranged in the middle of the bathroom, so that the sanitary towel can be contracted in the longitudinal direction to form a U-shaped structure, is suitable for the structural characteristics of a human body and is more fit with the human body; meanwhile, the elastic structure 5 is arranged between the absorption core layer 4 and the diversion layer 3 or between the diversion layer 3 and the surface layer 1, so that the influence on the absorption effect of the sanitary towel due to the arrangement of the elastic structure 5 can be avoided, and the contraction effect can be improved.

Preferably, in one embodiment, the elastic structure 5 includes a plurality of elastomers, a plurality of elastomers are distributed between the bottom layer 6 and the absorbent core layer 4 at intervals, a plurality of elastomers are distributed in a rectangular structure in a point-to-point mode, long sides of the rectangular structure are parallel to the longitudinal direction of the sanitary towel, short sides of the rectangular structure are parallel to the transverse direction of the sanitary towel, part of the sanitary towel is a non-woven fabric structure without elasticity, and the part of the sanitary towel is elastic, so that the whole sanitary towel is more favorable for rebounding to form a U-shaped structure and is more fit with a human body.

In this embodiment, the elastic body is arranged in a point-breaking manner, that is, a single complete elastic band is arranged according to an S-shaped curve or a shape like a Chinese character 'hui', so as to form a rectangular structure, then the elastic piece is cut off by using a point-breaking cutter, so that a point-breaking elastic body is formed, and the elastic body is cut off at equal intervals during cutting, so that the lengths of the cut elastic bodies are consistent, and the intervals are consistent.

In another embodiment, the elastic bodies are arranged in a point-to-point manner, wherein a plurality of single complete elastic bands are arranged at equal intervals in the transverse direction, then each elastic piece is cut off by a point-to-point cutter in the longitudinal direction to form elastic bodies, the intervals are consistent when the elastic bodies are cut off, the lengths of the elastic bodies after the elastic bodies are consistent, a rectangular elastic structure 5 with a plurality of rows (in the transverse direction) and a plurality of columns (in the longitudinal direction) is formed, and two ends of the elastic bodies in each row are aligned and distributed, so that the elasticity is uniform.

In one embodiment, the elastic body may be one of an elastic film and an elastic waistline. The arrangement mode is consistent with that of the rubber band, after the longer elastic film or the elastic waistline is compounded with the bottom layer 6, the elastic film or the elastic waistline is compounded on the bottom layer 6 after being cut by a point breaking knife to form the elastic structure 5, so that the processing is facilitated.

In this embodiment, the elastic component may also be fixedly connected with the bottom layer 6 and the absorbent core layer 4 by adopting an adhesive manner, and the specific adopted adhesive manner is adhesive spraying, so that the adhesive consumption can be reduced, and the rebound shrinkage effect of the elastic structure 5 is not affected due to the smaller adhesive consumption.

In this embodiment, the lateral dimension of the elastic structure 5 is smaller than or equal to the lateral dimension of the absorbent core layer 4, and after the elastic structure 5 is contracted, the absorbent core layer 4 extending laterally beyond the elastic structure 5 can also continue to absorb liquid.

In this embodiment, the elastomer has a stretch ratio greater than 1.5, and a high elasticity to facilitate rebound.

In this embodiment, the bottom layer 6 extends out of the absorbent core layer 4 along the lateral direction and is joined to the barrier rib 2 to form two wings, the wings are used for preventing liquid (or menstrual liquid) from leaking laterally, the longitudinal dimension of the wings is smaller than the longitudinal dimension of the elastic structure 5, and the center point of the elastic structure 5 is aligned with the center of the wings, so as to ensure elasticity in the center of the absorbent region.

In this embodiment, the partition includes a joint portion 21 and a fixing structure, the joint portion 21 includes a first joint portion 211, a second joint portion 212 and a third joint portion 213 that are sequentially distributed along a longitudinal direction, the second joint portion 212 includes at least three layers of leakage preventing layers, the multiple layers of leakage preventing layers are integrated by embossing, or the first joint portion 211 and the third joint portion 213 each include at least one layer of leakage preventing layer, the first joint portion 211 and the third joint portion 213 are fixed with the surface layer 1 by the fixing structure, and a longitudinal dimension of the second joint portion 212 is the same as a longitudinal dimension of the elastic structure 5, so that when the elastic structure 5 contracts, the second joint portion 212 stands upright in a direction perpendicular to the surface layer 1 to form a three-dimensional structure, and is combined with a U-shaped structure formed after the elastic structure 5 contracts to form a 360-degree adhesive leakage preventing structure, thereby improving a side leakage preventing effect.

In this embodiment, the second joint 212 includes a first leakage preventing layer 2121, a second leakage preventing layer 2122 and a third leakage preventing layer 2123, the first leakage preventing layer 2121, the second leakage preventing layer 2122 and the third leakage preventing layer 2123 are formed by sequentially folding the second joint 212 in the direction perpendicular to the surface layer 1, the first leakage preventing layer 2121 is closer to the central area of the sanitary towel, the lateral dimension of the first leakage preventing layer 2121 is smaller than the lateral dimension of the second leakage preventing layer 2122, the three-layer structure of the second joint 212 is formed by hot pressing lamination, and the widths of the three-layer structure are different during hot pressing lamination, so that the thickness of the part can be reduced, the stiffness and hardness of the material after hot pressing can be reduced, the softness can be improved, the three-dimensional structure can be formed more conveniently when the elastic structure 5 rebounds, and the comfort level of the body feeling can be improved.

Of course, in other embodiments, the second engagement portion 212 may be provided with four or five leakage preventing layers, the width of which increases gradually in a direction laterally away from the central region of the sanitary napkin.

In other embodiments, the barrier 2 is folded in a direction perpendicular to the facing layer 1 to form the first leakage preventing layer 2121, the second leakage preventing layer 2122 and the third leakage preventing layer 2123, which is convenient for production and processing, and reduces processing difficulty, and the lateral dimension of the first leakage preventing layer 2121 is smaller than that of the second leakage preventing layer 2122, so that flexibility can be improved, and a three-dimensional structure can be more conveniently formed when the elastic structure 5 rebounds.

In this embodiment, be located the bottom 6 in absorption sandwich layer 4 region is close to the fixed gum layer 7 of clothing adhesion is equipped with, gum layer 7 is along vertical interval setting, and follows the central point symmetry of elastic structure 5, be equipped with on the gum layer 7 and protect it before the use not destroyed from type paper 8, paste sanitary towel fixedly when making things convenient for the user to use, avoid running the position and cause sanitary towel low in utilization ratio and weeping problem.

In this embodiment, the distance between the back adhesive layers 7 in the longitudinal direction is at least 6cm, so that the sanitary towel is not limited by the viscosity of the back adhesive layers 7 when the elastic structure 5 is retracted freely.

In the embodiment, a back adhesive layer is also arranged on one side of the protective wing close to the clothes, so that the protective wing is convenient to turn over and adhere to the clothes.

In this embodiment, the partition 2 is made of any one of spunbond, hot air and spunlaced materials, which are commonly used materials for preparing sanitary napkins, and the materials are easy to obtain and convenient for controlling the cost, and meanwhile, the materials can be treated to improve the water repellency, which is more beneficial to avoiding the side leakage of liquid.

Referring to fig. 4 and 5, the process flow of the self-retracting, resilient, body-fitting, leak-proof sanitary napkin in one embodiment is as follows:

s1, folding one side of a partition edge 2 transversely twice, then embossing three pieces to form a joint part 21 which extends longitudinally and is provided with three layers of leakage-proof layers, turning the partition edge 2 towards the bottom of the side layer 1, and turning the turned edge formed by the first turning towards the top (the direction opposite to the bottom); the joint part 21 and the surface layer 1 are combined into an integral structure in an adhesive mode, the bottom end (the side close to the bottom layer 6) of the same length as the elastic structure 5 is not glued during gluing, namely the joint part 21 is divided into a first joint part 211, a second joint part 212 and a third joint part 213, and the glue is glued and fixed with the surface layer 1 at the bottom ends of the first joint part 211 and the third joint part 212, referring to (a) and (b) in fig. 4;

s2, compounding the chopped guide layer 3 with the material prepared in the step S1, and generally adopting a gluing mode, referring to (c) in FIG. 4;

s3, compounding the bottom layer 5 with the cut elastic structure 5 after the sizing and finishing the cutting, referring to (d) in FIG. 4;

s4, compounding the material prepared in the step S3 with the internally-cut absorption core layer 4, and referring to (e) in FIG. 4;

s5, compounding the material in the step S4 with the material in the step S2, and referring to (f) in FIG. 4;

s6, coating the product obtained in the step S5 with a back adhesive layer 7, wherein the back adhesive layer 7 is not formed at least 6cm long in the middle, and compounding the back adhesive layer 7 with release paper 8, and referring to (g) in FIG. 4;

s7, carrying out circumscribed folding and package forming on the product obtained in the step S6, and referring to (h) in fig. 4.

The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.

Claims (10)

1. A self-retracting, resilient, leak-proof sanitary napkin, comprising:

a facing layer disposed in contact with the skin;

the diversion layer is arranged on one side of the surface layer far away from the skin and is used for absorbing diversion liquid;

the absorption core layer is arranged on one side of the diversion layer away from the surface layer and is used for absorbing and storing liquid;

the elastic structure is arranged on one side of the absorption core layer away from the diversion layer;

a bottom layer arranged on one side of the elastic structure away from the absorbent core layer, and the other side is used for contacting with clothes;

and two isolation edges, wherein the two isolation edges are positioned on two opposite sides of the surface layer.

2. The self-contracting, elastic, body-fitting, leak-proof sanitary napkin of claim 1, wherein said elastic structure comprises a plurality of elastic bodies, a plurality of said elastic bodies being spaced apart between said backsheet and absorbent core.

3. The self-contracting, elastic, leak-proof sanitary napkin according to claim 2, wherein said sanitary napkin has a longitudinal direction along a longitudinal direction and a transverse direction along a width direction, a plurality of said elastic bodies are arranged in a rectangular configuration in a point-to-point manner, and the long sides of said rectangular configuration are parallel to said longitudinal direction and the short sides of said rectangular configuration are parallel to said transverse direction.

4. The self-contracting, elastic, body-fitting, leak-proof sanitary napkin of claim 1, having a longitudinal direction along the length direction and a transverse direction along the width direction, wherein the transverse dimension of said elastic structure is less than or equal to the transverse dimension of said absorbent core.

5. The self-contracting, elastic, body-fitting, leak-proof sanitary napkin of claim 1, wherein said backsheet extends laterally beyond said absorbent core layer and engages said barrier to form two flaps, said flaps having a longitudinal dimension less than the longitudinal dimension of said elastic structure.

6. The self-contracting, elastic, body-fitting, leak-proof sanitary napkin of claim 2, wherein said elastomer has a stretch ratio greater than 1.5.

7. The self-contracting, elastic, body-fitting, leak-proof sanitary napkin of claim 2 or 6, wherein said elastic body is one of a rubber band, an elastic film, and an elastic waist band.

8. The self-contracting, elastic, body-fitting, leak-proof sanitary napkin of claim 1, having a longitudinal direction along a length direction and a transverse direction along a width direction, said barrier comprising a joint and a securing structure, said joint comprising a first joint, a second joint and a third joint, said first joint, second joint and third joint being arranged in sequence along said length direction, said second joint comprising at least three leak-proof layers, said first joint and second joint each comprising at least one leak-proof layer, said first joint and second joint being secured to said facing by said securing structure such that said second joint stands in a direction perpendicular to said facing, said second joint having a longitudinal dimension identical to a longitudinal dimension of said elastic structure.

9. The self-contracting, elastic, body-fitting, leak-proof sanitary napkin of claim 8, wherein said second engagement portion comprises a first leak-proof layer, a second leak-proof layer and a third leak-proof layer, said first leak-proof layer, second leak-proof layer and third leak-proof layer being formed by said second engagement portion being sequentially folded in a direction perpendicular to said facing layer, said first leak-proof layer having a lateral dimension that is less than a lateral dimension of said second leak-proof layer.

10. The self-contracting, elastic, body-fitting, leak-proof sanitary napkin of claim 1, having a longitudinal direction along the length direction and a transverse direction along the width direction, said barrier being folded in a direction perpendicular to said facing layer to form a first leak-proof layer, a second leak-proof layer and a third leak-proof layer, said first leak-proof layer having a transverse dimension that is less than the transverse dimension of said second leak-proof layer.