CN111772932B

CN111772932B - Portable sanitary towel and packaging body thereof

Info

Publication number: CN111772932B
Application number: CN202010807663.XA
Authority: CN
Inventors: 华莉云; 黄翠玉; 吴颖
Original assignee: Fujian Hengan Hygiene Material Co ltd; Hengan Fujian Holding Group Co Ltd; Fujian Hengan Household Life Article Co Ltd
Current assignee: Fujian Hengan Hygiene Material Co ltd; Hengan Fujian Holding Group Co Ltd; Fujian Hengan Household Life Article Co Ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2022-02-15
Anticipated expiration: 2040-08-12
Also published as: CN111772932A

Abstract

The invention relates to the technical field of sanitary napkins, in particular to a portable sanitary napkin and a packaging body thereof, which comprises a skin-friendly surface layer, an absorption core and a liquid-tight bottom layer arranged on the lower surface of the absorption core, wherein the absorption core comprises an absorption core body and a convex structure arranged in the middle of the upper surface of the absorption core body, the width of the convex structure is 25-45 mm, the length of the convex structure is 60-120 mm, and the thickness of the convex structure is 2-5mm, the absorption core body and the convex structure are both made of polyurethane cotton, the lower surface of the liquid-tight bottom layer is provided with transverse gum, the sanitary napkin is wrapped by a release film, the sanitary napkin wrapped by release paper is flattened and is upwards curled along the length direction of the absorption core to form a cylindrical shape, and is fixed by easy-tearing; the packaging body comprises an upper cover and a lower cover which are made of paper materials, and the upper cover and the lower cover are covered through inserting.

Description

Portable sanitary towel and packaging body thereof

Technical Field

The invention relates to the technical field of sanitary towels, in particular to a portable sanitary towel and a packaging body thereof.

Background

The existing sanitary towel generally comprises a liquid-permeable surface layer, a liquid-impermeable bottom layer and an absorption layer positioned between the liquid-permeable surface layer and the liquid-impermeable bottom layer, wherein the absorption layer is usually made of fluff pulp high polymer materials and is formed into a small bag in a three-fold or folded mode, the size of the single-piece small bag is large, a user can easily see the small bag when holding the small bag in the hand when taking the small bag, and the guess of the user in the physiological period is caused by other people. And because most of the existing sanitary napkins use the common fluff pulp structure core, if the product is folded or rolled up in multiple layers, the product has large wrinkles after being unfolded and is not easy to recover, and the use feeling can be influenced.

Disclosure of Invention

Therefore, aiming at the problems, the invention provides a portable sanitary towel and a packaging body thereof, which have small volume and strong concealment, are convenient for a user to carry and avoid embarrassment.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a portable sanitary towel, includes skin-friendly top layer, absorption core and locates the liquid-tight nature bottom of absorption core lower surface, the absorption core includes the absorption core body and locates the convex structure at the upper surface middle part of absorption core body, convex structure width size is 25mm-45mm, and length size is 60mm-120mm, and thickness size is 2-5mm, absorption core body and convex structure are made by polyurethane foam, the lower surface of liquid-tight nature bottom is equipped with horizontal gum, wraps up aforementioned sanitary towel with one from the type membrane, flattens the sanitary towel that has wrapped up from type paper and upwards curls along absorption core length direction and takes shape for cylindricly, fixes with easily tearing the subsides.

The improved structure is characterized in that at least one groove is formed in the lower surface of the absorption core body, and high-molecular water-absorbent resin is arranged in the groove.

Further improved, the specification of the polyurethane foam for making the absorbent core body is 100-200gsm, the specification of the polyurethane foam for making the convex structure is 150-250gsm, and the absorbent core body and the convex structure are integrally formed by foaming through a forming mold.

The improved forming die comprises an upper die plate and a lower die plate, wherein the upper die plate is provided with a die bulge, the lower die plate is provided with a die cavity, the die bulge and the die cavity are matched to form a die cavity used for an absorption core and a middle convex structure, an upper air cavity is arranged above the die cavity, the upper air cavity comprises a middle air cavity arranged above the corresponding position of the middle convex structure, an upper left air cavity and an upper right air cavity arranged on two sides of the middle air cavity, upper heating pipes are respectively arranged in the middle air cavity, the upper left air cavity and the upper right air cavity, a lower air cavity is arranged below the die cavity, a lower heating pipe is arranged in the lower air cavity, and the middle air cavity, the upper left air cavity, the upper right air cavity and the lower air cavity are respectively connected with a cooling pipeline.

In a further improvement, the forming die is provided with at least two die cavities, and the die cavities are communicated with each other.

The invention also discloses a package body of the portable sanitary towel, which comprises an upper cover and a lower cover which are made of paper materials, wherein the upper cover and the lower cover are covered by inserting and are made of the paper materials, so that the package body is environment-friendly and easy to decompose.

By adopting the technical scheme, the invention has the beneficial effects that:

1. because the sanitary towel is made of polyurethane cotton, the sanitary towel has good compressibility and recoverability, is in a column shape after being flattened and rolled up, has the characteristics of small volume and strong concealment compared with the prior sheet shape, is convenient for a user to carry, avoids embarrassment, does not generate wrinkles after being unfolded again, is comfortable to use, and does not generate lumps after being layered; the release film is used as the coating film, so that the sanitary towel has the function of isolating the sanitary towel from the outside and is convenient to peel off from the transverse gum; the convex structure has higher thickness, is beneficial to fitting private parts, and can quickly guide the menstrual blood to seep downwards due to the pores of the polyurethane foam and has good ventilation effect, so that the private parts are dry and comfortable;

2. the absorption capacity of the sanitary towel can be increased by arranging the high-molecular water-absorbing resin;

3. the density of the convex structure is higher than that of the absorption core body, so that the concave structure is more beneficial to being attached to a private part, plays a role in massaging the private part and can increase the absorption capacity of the sanitary towel;

4. the absorption core is integrally foamed and molded through a molding die, during molding, after the molding die is preheated, mixed polyurethane slurry is injected, primary foaming is carried out on the molding die, heating pipes positioned in a middle air cavity, an upper left air cavity, an upper right air cavity and a lower heating pipe positioned in a lower air cavity are opened for heating, primary foaming time temperature is set, during secondary foaming, the upper heating pipe positioned in the middle air cavity is closed, cold air is introduced into the middle air cavity through a cooling pipeline, the heating pipes positioned in the upper left air cavity, the upper right air cavity and the lower heating pipe positioned in the lower air cavity are continuously opened for heating, secondary foaming time temperature is set, after secondary foaming is finished, the heating pipes are closed, and cold air is introduced into each air cavity for cooling and mold opening;

5. by arranging a plurality of communicated die cavities, a plurality of absorption cores can be foamed and molded at one time, so that the production efficiency is improved;

drawings

FIG. 1 is a schematic unfolded structure of a sanitary napkin according to a first embodiment of the present invention;

FIG. 2 is a schematic structural view of a release paper of a sanitary napkin according to a first embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic diagram of a rolled-up configuration of an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a forming mold according to an embodiment of the present invention;

FIG. 6 is a schematic view of a partial cross-sectional structure of a forming die according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a package according to an embodiment of the present invention;

fig. 8 is a schematic view showing a transverse cross-sectional structure of a sanitary napkin according to a second embodiment of the present invention.

Detailed Description

The invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 6, the present embodiment provides a portable sanitary napkin, comprising a skin-friendly surface layer 11, an absorbent core and a liquid-impermeable bottom layer 13 disposed on the lower surface of the absorbent core, wherein the skin-friendly surface layer 11 is made of a skin-friendly anti-rewet fabric, the absorbent core comprises an absorbent core body 121 and a convex structure 122 disposed in the middle of the upper surface of the absorbent core body 121, the convex structure 122 has a width dimension of 25mm to 45mm, a length dimension of 60mm to 120mm and a thickness dimension of 4mm, the width dimension and the length dimension of the convex structure 122 are specifically set by the length and the width of the sanitary napkin during production, and the absorbent core body 121 and the convex structure 122 are both made of polyurethane cotton, wherein the polyurethane cotton made of the absorbent core body 121 has a specification of 100 and 200gsm, the polyurethane cotton made of the convex structure 122 has a specification of 150 and 250gsm, the lower surface of the liquid-tight bottom layer 13 is provided with a transverse gum 14, the sanitary towel is wrapped by a release film 15, the sanitary towel wrapped by the release paper 15 is flattened and is upwards curled along the length direction of the absorption core to form a cylinder shape, and the cylinder shape is fixed by an easy-to-tear sticker 16.

In this embodiment, the absorbent core body 121 and the convex structure 122 are integrally formed by a forming mold, the forming mold includes an upper mold plate 21 and a lower mold plate 22, the upper mold plate 21 is provided with a mold protrusion 211, the lower mold plate 22 is provided with a mold cavity 221, the mold protrusion 211 and the mold cavity 221 cooperate to form a mold cavity 23 for the absorbent core 121 and the convex structure 122, the upper mold plate 21 is provided with an upper air cavity above the mold cavity 23, the upper air cavity includes a middle air cavity 212a above a corresponding position of the convex structure, a left upper air cavity 212b and a right upper air cavity 212c on two sides of the middle air cavity 212a, the left upper air cavity 212b and the right upper air cavity 212c are respectively provided with an upper heating pipe 213 therein, the lower mold plate 22 is provided with a lower air cavity 222 below the mold cavity 23, the lower heating pipe 223 is provided in the lower air cavity 222, and the middle air cavity 212a, The left upper air chamber 212b, the right upper air chamber 212c and the lower air chamber 222 are connected to the cooling duct 24, respectively.

During the shaping, after preheating the mould, pour into the polyurethane thick liquids that mix, foam once to the mould, open and be located middle air cavity, upper left air cavity, the heating pipe in the upper right air cavity heats with the lower heating pipe that is located lower air cavity, set for once foaming time temperature, during secondary foaming, close the last heating pipe that is located middle air cavity, and let in air conditioning via cooling pipeline in the middle air cavity, continue to open and be located upper left air cavity, the heating pipe in the upper right air cavity heats with the lower heating pipe that is located lower air cavity, set for secondary foaming time temperature, after secondary foaming is accomplished, close each heating pipe, let in the air conditioning cooling in each air cavity, the die sinking.

In order to improve the production efficiency, in the actual production, the forming die is at least provided with two die cavities 23, the die cavities are mutually communicated, and the cutting is carried out after the forming is finished.

In this embodiment, the thickness of the convex structure 122 is 2-5mm, preferably 3-4.5 mm, and most preferably 4mm, so as to prevent the convex structure 122 from extending too deep into the private area to cause discomfort, or from being too shallow to cause a better massage effect, so as to be more close to the private area to massage the private area.

Referring to fig. 7, the embodiment further discloses a package body of the portable sanitary napkin, which comprises an upper cover 31 and a lower cover 32 made of paper materials, wherein the upper cover 31 and the lower cover 32 are covered by inserting and covering, the rolled and fixed sanitary napkin is placed in the package body for storage, and the package body made of the paper materials is environment-friendly and easy to decompose.

Example two

Referring to fig. 8, the second embodiment discloses a portable sanitary napkin based on the same inventive concept as the first embodiment, which is different from the first embodiment in that: the lower surface of the absorption core body is provided with two grooves 17, the two grooves 17 extend along the length direction of the absorption core and are symmetrically arranged at two sides of the absorption core body, the grooves 17 are internally provided with the macromolecular water-absorbent resin 18, and the absorption capacity of the sanitary towel can be increased and the back seepage can be prevented through the arrangement.

In this embodiment, the number of the grooves 17 can be specifically set according to actual situations.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A portable sanitary napkin characterized by: the sanitary towel comprises a skin-friendly surface layer, an absorption core and a liquid-tight bottom layer arranged on the lower surface of the absorption core, wherein the absorption core comprises an absorption core body and a convex structure arranged in the middle of the upper surface of the absorption core body, the width dimension of the convex structure is 25-45 mm, the length dimension of the convex structure is 60-120 mm, and the thickness dimension of the convex structure is 2-5mm, the absorption core body and the convex structure are both made of polyurethane cotton, the lower surface of the liquid-tight bottom layer is provided with a transverse gum, a release film is used for wrapping the sanitary towel, the sanitary towel wrapped with release paper is flattened and upwards curled along the length direction of the absorption core to form a cylinder shape, and the cylinder shape is fixed by an easy-tearing sticker.

2. A portable sanitary napkin as claimed in claim 1, wherein: the lower surface of the absorption core body is at least provided with a groove, and the groove is internally provided with high-molecular water-absorbent resin.

3. A portable sanitary napkin as claimed in claim 2, wherein: the specification of the polyurethane foam for preparing the absorption core body is 100-200gsm, the specification of the polyurethane foam for preparing the convex structure is 150-250gsm, and the absorption core body and the convex structure are integrally formed by foaming through a forming die.

4. A portable sanitary napkin as claimed in claim 3, wherein: the forming die comprises an upper die plate and a lower die plate, wherein the upper die plate is provided with a die bulge, the lower die plate is provided with a die cavity, the die bulge and the die cavity are matched to form a die cavity used for absorbing a core and a convex structure, an upper air cavity is arranged above the upper die plate and located in the die cavity, the upper air cavity comprises a middle air cavity arranged above the corresponding position of the convex structure, an upper left air cavity and an upper right air cavity arranged on two sides of the middle air cavity, upper heating pipes are respectively arranged in the middle air cavity, the upper left air cavity and the upper right air cavity, a lower air cavity is arranged below the die cavity and located in the lower die plate, lower heating pipes are arranged in the lower air cavity, and the middle air cavity, the upper left air cavity, the upper right air cavity and the lower air cavity are respectively connected with a cooling pipeline.

5. A portable sanitary napkin as claimed in claim 4, wherein: the forming die is at least provided with two die cavities which are communicated with each other.

6. A package of portable sanitary napkins, according to any one of claims 1 to 5, wherein: the paper packaging box comprises an upper cover and a lower cover which are made of paper materials, wherein the upper cover and the lower cover are covered through inserting.