Absorption core for fading bloodstain and female hygienic product provided with same

Abstract

The utility model relates to the field of female hygienic products, in particular to an absorption core for fading bloodstains and a female hygienic product provided with the same, which comprises a core main body, a compressed elastic fiber structure is arranged on the core main body, and the elastic fiber structure expands in volume after being triggered by liquid. The sanitary product is used for solving the problems that due to the fact that an absorption core of an existing sanitary product for women is still insufficient in menstrual blood absorption speed and absorption amount, menstrual blood stays on the surface of the absorption core, body health of women is affected, use experience is poor, and the sanitary product is not friendly to women with blood faint. Through expansion generated after the elastic fiber structure is triggered, on one hand, menstrual blood is promoted to be quickly transferred downwards through volume increase, and therefore the menstrual blood staying on the surface of the elastic fiber structure is reduced; on the other hand, blood stains on the surface layer of the elastic fiber structure are dispersed through expansion, and the blood stains in the elastic fiber structure are covered by unfolded fibers, so that rapid fading of menstrual blood is formed visually.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of female sanitary products, more particularly to an absorbent core for lightening bloodstains and a female sanitary product provided with the same. BACKGROUND

[0002] As a necessary consumer product for every woman, female sanitary products have a very wide range of applications. However, since female sanitary products are directly in contact with the skin, and menstrual blood stays on the surface of the sanitary product and is prone to bacterial growth, the absorption capacity of female sanitary products for menstrual blood directly affects the health of the female user.

[0003] In the prior art, in order to improve the moist and sticky touch feeling of menstrual blood falling on the sanitary product during the menstrual period, reduce the long-term contact of menstrual blood with the skin of the female user during the menstrual period, and at the same time, avoid the syncope symptom of the female user caused by the menstrual blood always staying on the surface of the sanitary product, the absorbent core of the female sanitary product is made of a material with high porosity to avoid the risk of precipitation of SAP particles in the sanitary product, or is made of a biopolymer that changes into a gel after absorbing menstrual blood, so as to avoid the menstrual blood staying on the surface of the sanitary product. However, the absorption speed of the prior art for menstrual blood is still insufficient, and how to accelerate the lightening speed and capacity of the absorbent core in the female sanitary product is a technical problem that needs to be continuously solved in the field. SUMMARY

[0004] The utility model aims to overcome at least one of the defects (shortcomings) of the prior art, provide an absorbent core for lightening bloodstains and a female sanitary product provided with the same, and solve the problem that the absorption speed and absorption capacity of the absorbent core of the existing female sanitary product for menstrual blood are still insufficient, which causes the menstrual blood to stay on the surface of the absorbent core and affects the health of the female user, and the use experience is poor and the female user with syncope is not friendly.

[0005] The utility model adopts the technical scheme of providing an absorbent core for lightening bloodstains, which comprises a core main body, wherein the core main body is provided with an elastic fiber structure that is compressed, and the elastic fiber structure expands in volume after being triggered by a liquid.

[0006] Further, the elastic fiber structure is in the form of a roll.

[0007] Further, the elastic fiber structure is in the form of a roll.

[0008] Further, the fiber denier of the elastic fiber structure is 3D to 12D.

[0009] Further, the elastic fiber structure comprises ES fibers, hollow PET polyester fibers, PBT fibers, and / or PET fibers.

[0010] Further, the elastic fiber structure has a weight of 20-35 gsm.

[0011] Further, the elastic fiber structure is provided with a lightening structure, which acts on hemoglobin.

[0012] The lightening structure acts on hemoglobin by chemical means, and further lightens the blood by changing the color of hemoglobin.

[0013] Further, the lightening structure is a microcapsule wrapped with a light-colored substance.

[0014] Further, the microcapsule is attached to the fiber of the elastic fiber structure by spraying.

[0015] Also provided is a female sanitary product, comprising a face film and a bottom film, wherein the face film and the bottom film are provided with the bloodstain lightening absorbent core.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: through the expansion of the elastic fiber structure after being triggered, on the one hand, the volume is increased to promote the rapid downward transmission of menstrual blood, thereby reducing the menstrual blood remaining on the surface of the elastic fiber structure; on the other hand, the surface bloodstain of the elastic fiber structure is dispersed by expansion, and the bloodstain in the elastic fiber structure is covered by the expanded fiber, thereby forming rapid lightening of menstrual blood from a visual perspective; shortening the menstrual blood remaining on the surface of the absorbent core, improving the absorption speed and absorption amount of the absorbent core, and improving the use experience of keeping the female user hygienic and dry during use, and the lightened bloodstain is more friendly to women with blood phobia. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structure top view of the present application.

[0018] Fig. 2 It is a sectional view of the absorbent core of the present application.

[0019] The figure mark is explained: core body 100, elastic fiber structure 110, thread glue 111, dust-free paper SAP ultra-thin absorbent core body 120, fixing glue 200, back glue 300. DETAILED DESCRIPTION

[0020] The drawings of the present application are only used for illustrative explanation, and cannot be understood as a limitation of the present application. In order to better illustrate the following embodiments, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0021] Example 1

[0022] As Figs. 1-2As shown, the embodiment provides an absorbent core for lightening bloodstains, comprising a core body, wherein the core body is provided with an elastic fiber structure that is compressed, and the elastic fiber structure is triggered by liquid to produce volume expansion.

[0023] In the embodiment, the core body is used to directly contact menstrual blood and quickly absorb the menstrual blood falling on the surface thereof, thereby improving the use experience of women, maintaining the hygiene of the surface of the absorbent core, and providing a more friendly use experience for women with blood phobia; the core body comprises a dust-free paper SAP ultra-thin absorbent core body. The elastic fiber structure in the core body is curled to form a three-layer curled fold line type on the side surface, the easy deformation and foldability of the elastic fiber structure enable the absorbent core to be provided in multiple layers, increase the amount of absorbed menstrual blood, and accelerate the speed of absorbing menstrual blood, and at the same time, the elastic fiber structure can completely fit the female private parts, thereby improving the use experience effect of women; the elastic fiber structure is a convex elastic absorption material.

[0024] In the embodiment, when the surface of the elastic fiber structure is touched by liquid, the adhesive, film seal, water-soluble film, water-soluble adhesive, water-soluble line, air bag compression, etc. used to seal the multi-layer folded elastic fiber structure are triggered to be unsealed, the folding gaps of the multi-layer folded elastic fiber structure gradually expand, and the elastic fiber structure expands from a small volume in a curled state to a large volume in a fully unfolded state, thereby forming a large area of coverage effect and rapidly expanding absorption pores.

[0025] In the embodiment, the sealing line glue is provided at the sealing position of the convex elastic absorption material, when menstrual blood falls on the upper surface of the core body, the convex elastic absorption material quickly absorbs the menstrual blood and makes the menstrual blood enter the dust-free paper SAP ultra-thin absorbent core body located in the lower layer, and the convex elastic absorption material is wetted by the menstrual blood to make the sealing line glue loose and unfold, thereby covering the absorbed menstrual blood under the unfolded convex elastic absorption material, thereby forming a visual effect of lightening the menstrual blood.

[0026] In the embodiment, the expansion of the elastic fiber structure triggered by the liquid expands the volume, on the one hand, the volume expansion promotes the rapid downward transmission of the menstrual blood, thereby reducing the menstrual blood remaining on the surface of the elastic fiber structure; on the other hand, the expansion makes the bloodstains on the surface of the elastic fiber structure dispersed, and the bloodstains in the elastic fiber structure are covered by the unfolded fibers, thereby visually forming a rapid lightening effect of the menstrual blood.

[0027] The elastic fiber structure is provided in a roll shape.

[0028] In this embodiment, the elastic fiber structure is arranged in a single crimped roll shape, the side of the roll shape forms a long rectangle with an aspect ratio of 7:1 three-folded, and a sealing line glue is arranged at the opening of the roll shape to fix the roll-shaped elastic fiber structure. The length of the roll-shaped elastic fiber structure after crimping is 36mm, the thickness after crimping is 5mm, the length after unfolding is 106mm, and the thickness after unfolding is 1.25mm. The roll-shaped elastic fiber structure makes the middle part of the core body directly contacting the most blood, which can quickly contact and absorb the most amount of menstrual blood, thereby realizing rapid absorption of menstrual blood and avoiding the menstrual blood staying on the surface of the absorption core.

[0029] In this embodiment, the roll-shaped arrangement on one hand makes it easier to form a cover of menstrual blood after the middle part is inflated, and on the other hand guides the inflation direction of the elastic fiber structure, realizes good compression in a limited volume, reasonably utilizes the space, and forms a connected multi-layer structure, increases the contact between each other except the connected part, and accelerates the downward transmission of menstrual blood.

[0030] The elastic fiber structure after unfolding is a fluffy cotton layer.

[0031] In this embodiment, the fluffy cotton is a shaped flake formed by using natural cotton fibers, artificial fibers or synthetic fibers, and processing by pulling, combing, spraying glue and baking and curing. As a kind of wadding material, it is arranged in the elastic fiber structure to prevent the elastic fiber structure from being fluffed after being wetted by menstrual blood, thereby causing the menstrual blood on the surface of the absorption core to be blocked with the wadding material and affecting the subsequent absorption of menstrual blood.

[0032] In this embodiment, the middle flow guide layer of the absorption core is formed by a 120mm wide fluffy cotton layer. When the crimped fluffy cotton layer touches the menstrual blood at the center of its upper surface, it expands and unfolds rapidly, so that the menstrual blood is covered by the fluffy cotton layer at the moment of being absorbed.

[0033] In this embodiment, the fluffy cotton layer helps to achieve better expansion effect after decompression. By utilizing the large gap between the fibers of the fluffy cotton layer, the fibers that contact the menstrual blood before compression can be fully shielded during the recovery of the fluffy layer, thereby improving the fading effect.

[0034] The fiber denier of the elastic fiber structure is 3D to 12D.

[0035] In this embodiment, the specific numerical range of the fiber denier allows the absorption core to form an easy-to-fold structure, which not only expands the absorption area and absorption speed of the absorption core, but also makes the surface yarn of the absorption core more fine, thereby forming a better skin touch and avoiding damage to the female skin caused by the friction of the mixture of menstrual blood and elastic fiber structure.

[0036] In the embodiment, the denier of the elastic fiber structure is 5D. It is beneficial to ensure softness and comfort, and reduce the discomfort that may be caused by the volume expansion of the elastic fiber structure. Moreover, the limitation of this denier makes the elastic fiber structure prone to produce small pores, producing a capillary-like effect, which helps to accelerate the rapid diffusion and uniform distribution of liquid between fibers, thereby making the blood lightening effect of the expanded elastic fiber structure more obvious in vision. And it can achieve light and thin under the premise of maintaining the liquid absorption performance, eliminate the adverse effects caused by expansion.

[0037] The elastic fiber structure comprises: ES fiber and / or hollow PET polyester fiber and / or PBT fiber and / or PET fiber.

[0038] In the embodiment, the use of ES fiber in the elastic fiber structure can improve the feeling of women during use and increase the adhesion to the skin, thereby avoiding the overflow of menstrual blood, due to its softness, loftiness, plasticity, non-toxicity, non-irritation and lightweight characteristics; the use of hollow PET polyester fiber can accelerate the absorption of menstrual blood and keep the private parts dry in hot and humid environments in summer to improve the use experience, due to its light weight, good moisture permeability and comfortable warmth effect characteristics; the use of PBT fiber can improve the adhesion of the absorbent core to the female private parts and improve the skin feeling of women and avoid the overflow of menstrual blood, due to its fine and dense three-dimensional curl and superior resilience characteristics; the use of PET fiber can increase its resistance to deformation after being contacted with menstrual blood and avoid secondary friction damage to the female private parts by the sticky mixture of menstrual blood and fiber, due to its wear resistance, heat resistance and corrosion resistance.

[0039] In the embodiment, the elastic fiber structure is ES fiber combined with PBT fiber, so that it can not only maintain a soft and fluffy use feeling, but also maintain superior resilience, so that the elastic fiber structure in a roll shape expands rapidly after being triggered by menstrual blood, dilutes and covers the menstrual blood, and avoids the retention of menstrual blood on the surface of the absorbent core. The elastic fiber structure can also be ES fiber combined with PBT fiber combined with hollow PET polyester fiber combined with PET fiber, so that the elastic fiber structure can not only have the aforementioned advantages, but also can keep the absorbent core dry in hot and humid environments in summer, improving the use experience of women.

[0040] In the embodiment, the ES fiber has good resilience and recovery performance, its material is soft and can reduce friction and irritation to the skin, and it also has good moisture absorption and air permeability. The hollow PET polyester fiber is light in weight and has high loftiness, which can effectively lock liquid inside. The PBT fiber has excellent elongation elasticity recovery rate, can well realize the required properties of the elastic fiber structure, and its material is soft, effectively avoiding friction irritation. The PET fiber has good resilience and wrinkle resistance, and strong chemical stability.

[0041] The elastic fiber structure has a gram weight of 20-35 gsm.

[0042] In this embodiment, the specific gram weight range makes the fluffy cotton present a three-layer shape folded on each other before use, so that the material of the elastic fiber structure can not only maintain the effects of lightness, breathability and skin-fitting, but also increase the absorption amount of menstrual blood.

[0043] In this embodiment, the elastic fiber structure has a gram weight of 30 gsm. This is conducive to guaranteeing the high liquid absorption performance, effectively reducing backflow, and controlling the overall weight to meet the expansion requirement.

[0044] The elastic fiber structure is provided with a lightening structure, which acts on hemoglobin.

[0045] In this embodiment, the lightening structure is sprayed on the surface of the fluffy cotton, and the lightening structure is a light-colored composition that can destroy hemoglobin. Since menstrual blood is composed of blood, endometrial tissue fragments, cervical mucus, plasmin and other components, and the color of menstrual blood is mostly derived from hemoglobin in blood, in order to achieve the effect of lightening bloodstains, hemoglobin needs to be treated. The light-colored composition can oxidize hemoglobin to a whitish yellow color to achieve the effect of lightening menstrual blood.

[0046] The lightening structure is a microcapsule wrapped with a light-colored substance.

[0047] In this embodiment, the microcapsule is a technology that completely covers the target substance with a continuous thin film of natural or synthetic high molecular compound, so that the original chemical properties of the target substance are not damaged, and the function of the target substance is presented externally through a certain specific external stimulus or slow release. The diameter of the microcapsule is generally 1-500 μm.

[0048] In this embodiment, the target substance wrapped in the microcapsule is a decolorizing composition formed by mixing unsaturated fatty acids or esters with surfactants and water, such as natural safflower seed oil and grape seed oil, which contain rich linoleic acid. The linoleic acid is mixed with surfactants at a ratio of 2:1 and encapsulated.

[0049] In this embodiment, the microcapsule can uniformly distribute the lightening structure in the elastic fiber structure, thereby improving the effect of the lightening structure. Moreover, it can effectively prolong the release of the active ingredient.

[0050] The microcapsule is attached to the fibers of the elastic fiber structure by spraying.

[0051] In this embodiment, the microcapsule is sprayed in the fluffy cotton layer, and the solvent is evaporated by drying or baking, so that the decolorizing composition can be attached to the surface of the fibers or partially penetrate into the fibers.

[0052] In this embodiment, the spraying process can shorten the drying time and control the uniformity of the spraying thickness, so that the microcapsules can quickly adhere to the surface of the fiber structure with large absorption hole gap and quickly penetrate into the inside of the elastic fiber structure, thereby promoting the uniform distribution of the lightening structure inside and outside the elastic fiber structure and increasing the coverage thickness of the microcapsules on the fiber surface.

[0053] Embodiment 2

[0054] As shown in Figs. 1-2 A blood stain lightening absorbent core is provided, comprising a core body, wherein the core body is provided with a compressed elastic fiber structure, and the elastic fiber structure expands in volume after being triggered by liquid.

[0055] The elastic fiber structure is in a roll shape.

[0056] The elastic fiber structure is a fluffy cotton layer after being unfolded.

[0057] The fiber denier of the elastic fiber structure is 3D to 12D.

[0058] The elastic fiber structure comprises ES fiber and / or hollow PET polyester fiber and / or PBT fiber and / or PET fiber.

[0059] The basis weight of the elastic fiber structure is 20gsm-35gsm.

[0060] The elastic fiber structure is provided with a lightening structure, and the lightening structure acts on hemoglobin.

[0061] The lightening structure is a microcapsule wrapped with a light color substance.

[0062] The microcapsule is attached to the fiber of the elastic fiber structure by spraying.

[0063] The embodiment provides a female sanitary product, comprising a face film and a bottom film, wherein the face film and the bottom film are provided with the blood stain lightening absorbent core.

[0064] In the embodiment, the female sanitary product is a sanitary napkin with a length of 280 mm and a width of 160 mm when the two wings are fully unfolded, and the width of each wing is 25 mm. The sanitary napkin comprises an edge layer, a pressing edge layer and a fixing layer. The two wings of the sanitary napkin form the edge layer from outside to inside, and the edge of the edge layer is in an arc shape to fit the skin of a woman, reduce the friction of the material on the skin, and form a relatively sealed environment after wearing to avoid leakage of menstrual blood. The pressing edge layer with a width of 80 mm is formed at the center of the long circle of the sanitary napkin, and the absorbing core is located at the center of the pressing edge layer and in a long circle runway shape. The width of the absorbing core is 75 mm, and the absorbing core comprises a waterproof bottom film material, a core body and an elastic fiber structure from bottom to top. The width of the elastic fiber structure is 40 mm, and the elastic fiber structure is used for absorbing menstrual blood and treating and lightening bloodstains. The fixing layer is arranged on the top surface of the two wings and the back surface of the waterproof bottom film material. The width of the fixing layer arranged on the two wings is 15 mm, and the length is 50 mm. The fixing layer is a waterproof self-adhesive back glue, which is used for fixing the sanitary napkin and preventing the sanitary napkin from shifting and causing leakage of menstrual blood.

[0065] In the embodiment, the commonly used material of the bottom film is a polyolefin microporous breathable film made of a polyethylene base material and calcium carbonate. The calcium carbonate with a particle size of 1.5-8 μm is selected, and the content is not more than 55% by mass fraction. The breathable film has a unique microporous structure. Thousands of breathable micropores are distributed on each square centimeter of the film. The micropores with high density can block the leakage of liquid and allow water vapor molecules to pass through smoothly, thereby forming a breathable and waterproof effect. The commonly used materials of the mask are divided into three categories. The dry net surface is a PE film made of various punched films such as polyethylene. The soft surface is a polypropylene fabric made of non-woven fabric material. The pure cotton surface is a non-woven fabric made of pure cotton material.

[0066] In the embodiment, the mask is used for direct contact with the female private part, and the bottom film is used for breathable waterproof, preventing menstrual blood from overflowing the sanitary napkin after being absorbed, and causing inconvenience.

[0067] In the embodiment, the visual lightening of menstrual blood can reduce the obvious degree of menstrual blood on the sanitary napkin, make the user feel more comfortable visually, effectively reduce psychological pressure, avoid embarrassment, and is particularly suitable for users with blood phobia.

[0068] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the technical scheme of the utility model, and are not a limitation on the specific embodiments of the utility model. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model claim should be included in the protection scope of the utility model claim.

Claims

1. An absorbent core for the removal of blood stains, comprising a core body, characterized in that, The core body is provided with an elastic fiber structure which is compressed, the elastic fiber structure is triggered by liquid to produce volume expansion, and the elastic fiber structure is provided with a lightening structure which acts on hemoglobin.

2. An absorbent core for the dilution of blood stains according to claim 1, characterized in that, The elastic fiber structure is in a roll shape.

3. An absorbent core for the dilution of bloodstains according to claim 2, characterized in that, The elastic fiber structure is a fluffy cotton layer after being unfolded.

4. An absorbent core for the dilution of blood stains according to claim 1, characterized in that, The fiber denier of the elastic fiber structure is 3D to 12D.

5. An absorbent core for the dilution of blood stains according to claim 1, characterized in that, The elastic fiber structure includes ES fiber and / or hollow PET polyester fiber and / or PBT fiber and / or PET fiber.

6. An absorbent core for the dilution of blood stains according to claim 1, characterized in that, The gram weight of the elastic fiber structure is 20gsm-35gsm. The lightening structure is a microcapsule wrapped with a light color.

7. An absorbent core for the dilution of blood stains according to claim 1, characterized in that, The microcapsule is attached to the fiber of the elastic fiber structure by spraying.

8. An absorbent core for the dilution of bloodstains according to claim 7, characterized in that, The face mask and the bottom mask are provided with an absorption core for lightening bloodstains according to any one of claims 1-8.

9. A feminine hygiene product comprising a top sheet and a back sheet, characterized in that, ​

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