Sanitary towel with extendable wings

Abstract

The utility model discloses a sanitary napkin with extendable wings, which comprises a sanitary napkin body and wings, at least one wing is provided with an extension portion, an elastic material is arranged in the extension portion, and the two wings can be connected with each other through the extension portion in an extension state and can be well fixed outside underpants. Wing connecting layers are oppositely arranged on the two wings in a front-back mode, sealing and pressing points correspondingly matched with the wing connecting layers are arranged on the edges of the wings, at least two faces of the sealing and pressing points are arranged around the wing connecting layers, and the positions of the wing connecting layers can be estimated by means of touch in use so that the wings can be conveniently connected with one another. In addition, the protective wings are symmetrically arranged on the middle section of the absorption layer of the sanitary towel, the middle section area is widened, the middle menstrual blood absorption capacity can be improved, and side leakage can be better prevented. After the sanitary napkin is used, when the sanitary napkin is replaced, the wing connecting layer can also assist in wrapping the folded sanitary napkin, the occupied space when the sanitary napkin is discarded is reduced, and emission of menstrual blood peculiar smell and the like is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary products, in particular to a sanitary napkin with extendable wings. Background Art

[0002] Sanitary napkins are one of the commonly used daily necessities for women. When using sanitary napkins, they are mainly fixed on the underwear by double-sided adhesives on the back and wings of the sanitary napkin.

[0003] The structures of existing sanitary napkins tend to be homogenized. With the continuous development of the economy, women's requirements for close-fitting inner-worn clothes are gradually diversified. For the category of underwear, the outer fabrics include materials such as pure cotton, modal, bamboo fiber, and ice silk. The adhesion firmness of different materials to the double-sided adhesive on the back of the wing is different. The characteristics of some materials result in insufficient adhesion firmness of the double-sided adhesive on the back of the wing. During use, with movement, the sanitary napkin may shift, leading to side leakage and sometimes loosening. At the same time, insufficient firmness of the wing is prone to wrinkling and rubbing the skin during daily activities, affecting the softness and comfort of the sanitary napkin.

[0004] The absorption layer provided in the middle of the sanitary napkin structure has a certain absorption capacity. Currently, the shape of the absorption layer is mostly straight-strip type, and some are widened horizontally at the front and back positions to form a fan shape. However, in actual use and laboratory test results, the front and back diffusion ability of the middle region is limited after absorbing a certain amount of liquid, and the liquid is prone to accumulate in the middle region, causing side leakage. What consumers really want to solve is anti-side leakage. The wing is to solve anti-side leakage, but the existing wing sanitary napkins do not completely solve the problem of side leakage. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a sanitary napkin with extendable wings. The wing has an extension part and a wing connection layer is also provided. In the extended state, the two wings of the sanitary napkin can be connected to each other through the wing connection layer, and it can be better fixed on the underwear to solve the problems such as diverse underwear fabrics, inconsistent crotch sizes, insufficient adhesion, displacement and side leakage during activities.

[0006] The technical solution to achieve the purpose of the utility model is as follows:

[0007] A sanitary napkin with extendable wings, including a sanitary napkin body. The sanitary napkin body successively includes an upper non-woven fabric, a surface layer, an absorption layer, a bottom film layer, a lower non-woven fabric and an adhesive layer from top to bottom. Different from the prior art: Wings are symmetrically provided in the middle section of the sanitary napkin body. At least one wing has an extension part, and elastic material is arranged therein. Wing connection layers are oppositely arranged on the two wings, one positive and one negative. In the extended state, the two wings are connected to each other through the wing connection layer.

[0008] Furthermore, the elastic material is a material with a certain stretching ability, which is equidistantly arranged on the extension part. The extension part is in a pleated form in its natural state. The stretching ratio of the elastic material is between 1.5 times and 3.0 times. A single extension part can be laterally extended by 10 mm to 20 mm. When a lateral pulling force is applied to a single wing, the extended length is 75 mm - 80 mm.

[0009] If the stretching ratio of the elastic material is less than 1.5 times, the pleating effect is poor and the stretching effect is also poor; if the stretching ratio is greater than 3.0 times, the force required for the user to laterally extend the wing will increase, and the usage difficulty will increase. After repeated experiments, the stretching ratio between 1.5 times and 3.0 times is the most suitable.

[0010] The lateral extension length of a single extension part should not be too long or too short. If the lateral extension length is less than 10 mm, it cannot achieve the function of connecting the wing; if the lateral extension length is greater than 20 mm, it will affect the convenience of operation.

[0011] If the lateral extension length of a single wing is less than 75 mm, the connecting part of the wing is less and not firm enough; if the lateral extension length is greater than 80 mm, the convenience of replacing the sanitary napkin after use will be greatly reduced.

[0012] Furthermore, the elastic material is a material with a certain stretching ability such as rubber band or elastic film. The denier of the rubber band is between 620 D and 1100 D, and the arrangement spacing between two rubber bands is between 5 mm and 20 mm. As the denier of the rubber band increases, the rubber band spacing continuously increases.

[0013] Furthermore, the edges of the two wings are provided with sealing points corresponding to the wing connecting layer. The distance between the sealing points and the wing connecting layer is 5 mm - 15 mm, and the sealing points are arranged around the wing connecting layer at least on two sides.

[0014] Furthermore, the wing connecting layer is a material that can be repeatedly adhered, such as glue, Velcro or magnetic stone, etc., which can be connected to each other. The connecting materials on the wing connecting layer can be used singly or in combination according to needs to achieve a better fixing effect. When the wing connecting layer is glue that can be repeatedly adhered, a release paper is covered on it.

[0015] If the sealing point is located at the edge of the wing and the distance from the wing connecting layer is less than 5 mm, it is easy to produce defective products when the production glue scraping positioning is offset; if the sealing point is located at the edge of the wing and the distance from the wing connecting layer is greater than 15 mm, the accuracy of estimating the position of the back glue by touch will decrease. After repeated experiments, setting the distance between the sealing point and the wing connecting layer at 5 mm - 15 mm is convenient for production.

[0016] Further, protective wings are symmetrically provided in the middle section of the absorption layer. The protective wings protrude 2 mm to 10 mm based on the narrowest lateral part of the absorption layer. The longitudinal length of the protective wings is at least 5 mm less than the longitudinal length of the winglets. The width of the absorption layer is less than or equal to the width of the sanitary napkin itself after removing the two side winglets.

[0017] The outer shape of the absorption layer of existing sanitary napkins is mostly straight strip-shaped, and some are horizontally widened at the front and back positions to form a fan shape, resulting in a structure that is wide at both ends and narrow in the middle. The purpose is to diffuse a certain amount of menstrual blood to the front and back after absorption in the middle area. However, in actual use surveys and laboratory tests, the ability to diffuse a certain amount of menstrual blood to the front and back after absorption in the middle area is limited, and the menstrual blood still accumulates in the middle area, causing side leakage.

[0018] If the protective wings of the sanitary napkin of the present application protrude less than 2 mm based on the narrowest lateral part of the absorption layer, the absorption area is small and the absorption capacity is insufficient; if the protective wings protrude more than 10 mm horizontally, the absorption area is too large and the foreign body sensation is strong. After repeated experiments, it is determined that the protective wings of the sanitary napkin of the present application protrude between 2 mm and 10 mm based on the narrowest lateral part of the absorption layer, which can not only widen the absorption area of menstrual blood in the middle area, improve the absorption capacity, and prevent side leakage of menstrual blood in the middle, but also avoid the foreign body sensation.

[0019] The longitudinal length of the protective wings is at least 5 mm less than the longitudinal length of the winglets, leaving a margin for deviation in production, ensuring the convenience of cutting during production and extending the service life of the cutting tool. With the protective wings on the absorption layer, that is, after the middle area is widened, the absorption capacity in the middle can be improved, and side leakage can be better prevented. At the same time, the size of the protective wings changes according to the size of the winglets, better ensuring the comfort of use.

[0020] Further, the upper non-woven fabric and the lower non-woven fabric respectively wrap the winglets from above and below. The bottom film layer is located between the absorption layer and the lower non-woven fabric. In terms of the lateral width, the bottom film layer is slightly wider than the absorption layer. The bottom film layer can be a common PE film, a PE film with non-woven fabric composite, or a PE film with upper and lower non-woven fabric layers laminated. Wrapping the winglets with non-woven fabric makes the product feel more comfortable and soft to the touch.

[0021] Further, the upper non-woven fabric and the lower non-woven fabric respectively wrap the winglets from above and below. The bottom film layer is located between the absorption layer and the lower non-woven fabric. The lateral width of the bottom film layer extends to the outside of the extension part. The extended bottom film layer can improve the leakage prevention function of the sanitary napkin.

[0022] Further, the upper non-woven fabric and the lower non-woven fabric respectively wrap the winglets from above and below. The bottom film layer is located between the absorption layer and the lower non-woven fabric. The lateral width of the bottom film layer extends to the outside of the upper and lower non-woven fabrics. The extended bottom film layer can improve the leakage prevention function of the sanitary napkin.

[0023] The present application also provides a method for manufacturing a sanitary napkin with extendable wings, which is used to manufacture a sanitary napkin with extendable wings. The manufacturing method includes the following steps: Place the bottom film layer longitudinally into the production line, evenly apply glue above the bottom film layer, place the absorbent layer above the glue, set the surface layer on the absorbent layer, and at the same time place the upper non-woven fabric longitudinally into the production line. The length of the glue scraping at the middle or both sides is between 40 mm and 100 mm, and the width of the glue scraping is between 60 mm and 150 mm. Transversely feed the elastic material into the production line and laminate it with the upper non-woven fabric. Cut the composite material in the middle, and after flipping, cover it on the sanitary napkin. Flip the sanitary napkin, evenly apply glue on both sides of the sanitary napkin, then cover the lower non-woven fabric on the bottom film layer. After cutting out the shape required for the sanitary napkin with extendable wings, seal the edges of the multi-layer structure, and press the corresponding matching sealing points on the front edge of the wings. Fix the back glue layer and the wing connection layer to the aforementioned multi-layer structure to obtain the finished product of the sanitary napkin with extendable wings.

[0024] When using the sanitary napkin with extendable wings of the present utility model, open the package and take out the sanitary napkin. First, tear off the release paper on the back of the sanitary napkin, stick the side with glue to the middle of the underwear first, align the two wings with the narrowest part of the underwear. When the wings are folded outwards, stretch the wings horizontally according to the size of the crotch of the underwear, extend the wings to a length matching the underwear, and connect the two wings into one body through the wing connection layer by touching the sealing points.

[0025] For the sanitary napkin with extendable wings of the present utility model, the wings can be further extended and connected into one body through the wing connection layer, and the sanitary napkin is firmly fixed to the bottom of the underwear. When in use, whether walking, running, etc., the sanitary napkin will not be displaced or loosened. After use, the torn wing connection layer of the sanitary napkin can also assist in wrapping the folded sanitary napkin, reducing the space occupied when discarded and reducing the emission of menstrual odor, etc. Description of the Drawings

[0026] Figure 1 Front view schematic diagram of the sanitary napkin for Example 1;

[0027] Figure 2 Reverse view schematic diagram of the sanitary napkin for Example 1;

[0028] Figure 3 Schematic diagram of the structure of the first method in the manufacturing method of the sanitary napkin for Example 2;

[0029] Figure 4 Schematic diagram of the structure of the second method in the manufacturing method of the sanitary napkin for Example 2;

[0030] Figure 5 Schematic diagram of the structure of the third method in the manufacturing method of the sanitary napkin for Example 2;

[0031] Figure 6Front schematic diagram of the sanitary napkin in Example 3;

[0032] Figure 7 Reverse schematic diagram of the sanitary napkin in Example 3;

[0033] Figure 8 Reverse schematic diagram of the sanitary napkin in Example 4.

[0034] Explanation of the reference numerals in the figure:

[0035] 1 Sanitary napkin body, 11 Upper non-woven fabric, 12 Surface layer, 13 Lower non-woven fabric, 2 Wing, 21 Extension part, 22 Elastic material, 23 Sealing point, 24 Wing connection layer, 3 Absorbent layer, 31 Protective wing, 4 Bottom film layer, 5 Adhesive layer. Detailed implementation manners

[0036] The following further illustrates the content of the present utility model in conjunction with the embodiments and the drawings, but does not limit the present utility model.

[0037] For the sanitary napkin with extendable wings in the embodiments, a daily-use sanitary napkin with a length of 240 mm is taken as an example for description. Example 1

[0038] Referring to Figure 1 、 Figure 2 and Figure 3 A sanitary napkin with extendable wings includes a sanitary napkin body 1. The sanitary napkin body 1 successively includes an upper non-woven fabric 11, a surface layer 12, an absorbent layer 3, a bottom film layer 4, an elastic material 22, a lower non-woven fabric 13, and an adhesive layer 5 from top to bottom. Wings 2 are symmetrically arranged in the middle section of the sanitary napkin body 1. Extension parts 21 are provided on the two wings 2. Elastic material 22 is arranged inside the extension parts 21. Wing connection layers 24 are arranged on the two wings 2 in a front-back and opposite manner. When the wings 2 are in the extended state, the two wings 2 are connected to each other through the wing connection layers 24.

[0039] The elastic material 22 in Example 1 is rubber band, and its denier is between 620D and 1100D. The arrangement spacing between the two rubber bands is between 5 mm and 20 mm, and the rubber band spacing continuously increases with the increase of the rubber band denier. The extension part 21 is in a pleated form in the natural state. A single extension part 21 can be horizontally extended by 10 mm to 20 mm. Under the action of a horizontal pulling force, the extension length of a single wing 2 is 75 mm to 80 mm. The horizontal extension operation of the wing 2 is relatively easy, and it is not easy to displace, resulting in a poor protection effect. The wing 2 can be well fixed on the underwear.

[0040] Referring to Figure 1 and Figure 2, on the two wings 2, wing connection layers 24 are provided in a one - positive - one - negative and opposite manner. At the edges of the two wings 2, sealing points 23 corresponding to the wing connection layers 24 are provided. The distance between the sealing points 23 and the wing connection layers 24 is 5 mm to 15 mm, and the sealing points 23 are arranged to surround the wing connection layers 24 on three sides.

[0041] In Embodiment 1, the wing connection layer 24 is a repeatedly adhesive glue, on which a release paper is covered. When in use, the position of the wing connection layer 24 is estimated by relying on the touch feeling of the sealing points 23, which is convenient for the mutual connection and pasting of the wings 2.

[0042] After the sanitary napkin is used, it is more convenient to replace the sanitary napkin after tearing off the wing connection layer 24. The wing connection layer 24 can assist in wrapping the folded sanitary napkin, reducing the space occupied when the sanitary napkin is discarded, and can reduce the emission of menstrual odor, etc.

[0043] Refer to Figure 1 and Figure 3 , on the middle section of the absorbent layer 3, protective wings 31 are symmetrically provided. The protective wings 31 protrude 2 mm to 10 mm based on the narrowest part in the transverse direction of the absorbent layer 3. The longitudinal length of the protective wings 31 is at least 5 mm less than the longitudinal length of the wings 2. The transverse width of the absorbent layer 3 is less than or equal to the width of the sanitary napkin body 1 after removing the two side wings 2. The symmetrical arrangement of the protective wings 31 on the sanitary napkin absorbent layer 3 improves the absorption area in the middle of the sanitary napkin and can better prevent side leakage during use. Embodiment 2

[0044] A preparation method of a sanitary napkin with extensible wings, refer to Figures 3 to 5 , the sanitary napkin body 1 from top to bottom successively includes an upper non - woven fabric 11, a surface layer 12, an absorbent layer 3, protective wings 31, an elastic material 22, a bottom film layer 4, a lower non - woven fabric 13, an adhesive layer 5 and a wing connection layer 24. The bottom film layer 4 is provided with an adhesive layer 5, and the adhesive layer 5 is covered with a release paper;

[0045] The preparation method includes the following steps: Place the bottom film layer 4 longitudinally into the production line, evenly spray glue above the bottom film layer 4, place the absorbent layer 3 above the glue, place the surface layer 12 on the absorbent layer 3, and at the same time place the upper non - woven fabric 11 longitudinally into the production line. The length of the glue scraping at the middle or both sides is between 40 mm and 100 mm, and the width of the glue scraping is between 60 mm and 150 mm. The elastic material 22 enters the production line transversely and is compounded with the upper non - woven fabric 11. The composite material is cut from the middle, and after being turned over, it is covered on the sanitary napkin. Turn over the sanitary napkin, and evenly spray glue on both sides of the sanitary napkin. Then cover the lower non - woven fabric 13 on the bottom film layer 4. After cutting out the shape required for the sanitary napkin with extensible wings, seal the edges of the multi - layer structure, and press the corresponding sealing points 23 at the positions of the wings 2 to fix the adhesive layer 5 and the wing connection layer 24 to the multi - layer structure mentioned above, obtaining the finished product of the sanitary napkin with extensible wings.

[0046] The preparation method of the sanitary napkin of the present utility model is divided into three methods. The first method is as follows. Referring to Figure 3 , the upper non-woven fabric 11 and the lower non-woven fabric 13 wrap the wing 2 from above and below. The bottom film layer 4 is located between the absorption layer 3 and the lower non-woven fabric 13. The bottom film layer 4 is a common PE film. In the transverse width, the bottom film layer 4 is slightly wider than the absorption layer 3. While the bottom film layer 4 plays a role in preventing leakage, it makes the number of material layers at the position of the wing 2 as small as possible, ensuring that the touch feeling of the wing 2 is more comfortable, soft, and thin.

[0047] The second method of preparation is as follows. Referring to Figure 4 , the upper non-woven fabric 11 and the lower non-woven fabric 13 wrap the wing 2 from above and below. The bottom film layer 4 is located between the absorption layer 3 and the lower non-woven fabric 13. The bottom film layer 4 is a common PE film. The transverse width of the bottom film layer 4 extends to the outside of the extension part 21. The extended bottom film layer 4 can improve the leakage prevention function of the sanitary napkin. The wing 2 is wrapped with non-woven fabric to make the touch feeling of the product more comfortable and soft. The bottom film layer 4 only extends to the outside of the extension part 21, ensuring the softness of the pinching position of the wing 2 during use.

[0048] The third method of preparation is as follows. Referring to Figure 5 , the upper non-woven fabric 11 and the lower non-woven fabric 13 wrap the wing from above and below. The bottom film layer 4 is located between the absorption layer 3 and the lower non-woven fabric 13. The bottom film layer 4 is a common PE film. The transverse width of the bottom film layer 4 extends to the outside of the upper and lower non-woven fabrics. The extended bottom film layer 4 can improve the leakage prevention function of the sanitary napkin. The wing 2 is wrapped with non-woven fabric to make the touch feeling of the product more comfortable and soft. The transverse width of the bottom film layer 4 extending to the outside of the upper and lower non-woven fabrics can make the wing more rigid, and the wing 2 is not easily wrinkled during use, resulting in the self-adhesion of the wing connection layer 24 and affecting its firmness. Example 3

[0049] Referring to Figure 6 and Figure 7 , for a sanitary napkin with an extendable wing, the structure of the wing 2, the absorption layer 3, and the sanitary napkin body 1 in this example is the same as that in Example 1, so it will not be elaborated here.

[0050] The difference from Example 1 is that wing connection layers 24 are provided oppositely, one positive and one negative, on the two wings 2. Sealing and pressing points 23 corresponding to the wing connection layers 24 are provided at the edges of the two wings 2. The sealing and pressing points 23 are symmetrically arranged around the wing connection layer 24 on both sides. When one side of the wing connection layer 24 is closely attached to one side of the wing 2, the area of the wing connection layer 24 can be set larger to achieve a better fixing effect.

[0051] The sanitary napkin of Example 3 is prepared in the third way. The width of the bottom film layer 4 in the horizontal direction is extended to the outside of the upper and lower non-woven fabrics, making the wing 2 more rigid, so that the wing 2 is not easily wrinkled during use, causing the self-adhesion of the wing connecting layer 24. Example 4

[0052] Refer to Figure 8 , a sanitary napkin with extendable wings. The wings 2 and the absorbent layer 3, the wing connecting layer 24 and the sealing points 23 of this embodiment are the same as those of Example 1, so they will not be elaborated here.

[0053] The difference from Example 1 of this embodiment is that: one wing 2 has an extension part 21, and an elastic material 22 is arranged in the extension part 21, and the other wing 2 does not have an extension part 21. The wings 2 with extension parts 21 can be connected to each other through the wing connecting layer 24 in the maximum extended state.

Claims

1. A sanitary napkin with extendable wings, comprising a sanitary napkin body (1), the sanitary napkin body (1) comprising, from top to bottom, an upper non-woven fabric layer (11), a surface layer (12), an absorbent layer (3), a bottom film layer (4), a lower non-woven fabric layer (13) and a back adhesive layer (5), characterized in that: The middle section of the sanitary napkin body (1) is symmetrically provided with wings (2), at least one of the wings (2) having an extension portion (21), an elastic material (22) being arranged in the extension portion (21), and two wings (2) having wing connecting layers (24) opposite to each other, one in front and one in back, being connected to each other via the wing connecting layer (24) when the wings (2) are in the extended state.

2. The sanitary napkin with extendable wings according to claim 1, characterized in that: The elastic material (22) is a material with a certain stretchability, and is equidistantly arranged on the extension portion (21). The extension portion (21) is in a pleated form in a natural state. The stretching ratio of the elastic material (22) is between 1.5 times and 3.0 times. A single extension portion (21) can be stretched transversely by 10 mm to 20 mm. Under the action of a transverse pulling force, the extension length of a single wing (2) is 75 mm to 80 mm.

3. The sanitary napkin with extendable wings according to claim 2, characterized in that: The elastic material (22) is a rubber band or an elastic film, the denier of the rubber band is between 620D and 1100D, the spacing between two rubber bands is between 5mm and 20mm, and the spacing between the rubber bands increases with the increase of the denier of the rubber band.

4. The sanitary napkin with extendable wings according to claim 1, characterized in that: The edges of the two wings (2) are provided with sealing points (23) corresponding to the wing connecting layer (24), the sealing points (23) and the wing connecting layer (24) are spaced 5 mm to 15 mm apart, and the sealing points (23) are arranged around the wing connecting layer (24) on at least two sides.

5. The sanitary napkin with extendable wings according to claim 1, characterized in that: The wing connection layer (24) is one of repeatedly sticky glue, Velcro or magnet.

6. The sanitary napkin with extendable wings according to claim 5, characterized in that: When the wing connecting layer (24) is a repeatedly stickable adhesive, the wing connecting layer (24) is covered with a release paper.

7. The sanitary napkin with extendable wings according to claim 1, characterized in that: The middle section of the absorbent layer (3) is symmetrically provided with protective wings (31), the protective wings (31) protrude 2 mm to 10 mm from the narrowest part of the absorbent layer (3) in the transverse direction, the longitudinal length of the protective wings (31) is at least 5 mm shorter than the longitudinal length of the protective wings (2), and the transverse width of the absorbent layer (3) is less than or equal to the width of the sanitary napkin body (1) after removing the protective wings (2) on both sides.

8. The sanitary napkin with extendable wings according to claim 1, characterized in that: The upper non-woven fabric (11) and the lower non-woven fabric (13) respectively cover the wings (2) from above and below, and the bottom film layer (4) is located between the absorption layer (3) and the lower non-woven fabric (13). In terms of transverse width, the bottom film layer (4) is slightly wider than the absorption layer (3).

9. The sanitary napkin with extendable wings according to claim 1, characterized in that: The upper non-woven fabric (11) and the lower non-woven fabric (13) respectively cover the wings (2) from above and below; the bottom film layer (4) is located between the absorption layer (3) and the lower non-woven fabric (13); the lateral width of the bottom film layer (4) is extended to the outside of the extension portion (21); and the extended bottom film layer (4) can improve the anti-leakage function of the sanitary napkin.

10. The sanitary napkin with extendable wings according to claim 1, characterized in that: The upper non-woven fabric (11) and the lower non-woven fabric (13) respectively cover the wings (2) from above and below; the bottom film layer (4) is located between the absorption layer (3) and the lower non-woven fabric (13); the lateral width of the bottom film layer (4) is extended to the outside of the upper and lower non-woven fabrics; the extended bottom film layer (4) can improve the anti-leakage function of the sanitary napkin.

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