CN110638578A - Novel structure of absorption article - Google Patents

Abstract

The present invention relates to an absorbent article with a novel structure. The absorbent article includes a surface layer, an air-guiding layer, an absorbing layer and a bottom film layer in sequence from top to bottom; the absorbing layer includes an upper an absorbent layer and a water-absorbent foam layer on the upper surface of the base film layer. The upper absorbent layer included in the invention makes menstrual blood seep down quickly, the surface residual time is shortened, and the dryness is greatly improved; the water-absorbing foam layer highly locks menstrual blood and increases the diffusion of menstrual blood. The absorbent article of the novel structure of the present invention has the advantages of ultra-thinness, not easy to form lumps and deformation, fast absorption speed, good diffusivity and dry surface.

Description

Absorbent article with a new structure

technical field

The invention belongs to the technical field of sanitary care products, and in particular relates to an absorbent product with a novel structure.

Background technique

With the development of the times, consumers' concept of using hygienic absorbent articles is constantly changing. In addition to requiring hygienic absorbent articles to meet the basic functions of comfortable use and good absorbency, they are also increasingly pursuing ultra-thin, dry and waterproof products. Absorbent product with excellent leakage performance.

Taking sanitary napkins as an example, at present, most of the absorbent cores of sanitary napkins on the market are fluff pulp or fluff pulp and polymer water absorbent resin (SAP) by making composite paper as the absorbing core. The characteristics of this type of sanitary napkins are: It is thick and not dry, and the amount of reverse osmosis is large. In addition, fluff pulp is more dusty during processing. Modern women have higher requirements for sanitary napkins, higher dryness requirements, thinner thickness requirements, and better fit requirements. Although most of the absorbent products on the market can prevent some menstrual blood from leaking out, there are still problems such as heavy menstrual flow or slow absorption or under the action of pressure (sitting, lying), etc. The surface dryness of the sanitary napkin is poor and the thickness of the sanitary napkin is too large, which leads to the problem of reduced wearing comfort.

SUMMARY OF THE INVENTION

The object of the present invention is to provide an absorbent article with a novel structure. The absorbent article of the new structure described in the present invention has the advantages of ultra-thin, not easy to form lumps and deformation, fast absorption speed, good diffusivity and dry surface, etc., and solves the problem that the absorption and diffusion speed of menstrual blood by the existing sanitary napkin absorbent core is slow. , At the same time, the thickness of the sanitary napkin is thick and not dry.

In order to achieve the above object, the present invention provides an absorbent article with a novel structure, the absorbent article includes a surface layer, a flow guiding layer, an absorbing layer and a bottom film layer in order from top to bottom; an upper absorbent layer on the lower surface of the fluid layer and a water absorbent foam layer on the upper surface of the bottom film layer.

Preferably, the upper absorbent layer is made of polymer composite absorbent paper, fluffy cotton composite core, absorbent paper formed by composite of wood pulp, superabsorbent resin and sanitary lining paper, or wood pulp and superabsorbent resin; and/or all The water-absorbent foam layer is made of water-absorbent foam material.

Preferably, the upper absorbent layer is composed of at least one layer of the polymer composite absorbent paper; the polymer composite absorbent paper has a length of 1-45 cm, a width of 0.1-15 cm, and/or the polymer composite absorbent paper The grammage of the paper is 30 to 130 g/m ² .

Preferably, the polymer composite absorbent paper is formed by wet-compounding the base paper with superabsorbent resin; each layer of the polymer composite absorbent paper is composed of two base paper layers and a superabsorbent resin sandwiched between the two base paper layers .

Preferably, the gram weight of the superabsorbent resin is 10-300 g/m ² , the particle size is 30-100 mesh, the water retention capacity is not less than 25 g/g, and the liquid passing capacity is not less than 0.1 mL/min.

Preferably, the length of the water-absorbent foam layer is 1-45 cm, and the width is 0.1-15 cm; and/or the gram weight of the water-absorbent foam layer is 5-40 g/m ² ; and/or the thickness of the water-absorbent foam layer 1 to 8mm.

Preferably, a perforated structure is provided on the upper surface of the upper absorbent layer and/or the water-absorbent foam layer, and the perforated structure is composed of a plurality of diversion holes; the shape of the diversion holes is circular , one or more of square, heart-shaped, bar-shaped, and wave-shaped, and/or the diameter of the guide hole is 0.1-50 mm.

Preferably, the surface layer is a hot air surface layer, a spunbond surface layer or a pure cotton surface layer; and/or the grammage of the surface layer is 5-40 g/m ² , and/or the length of the surface layer is 10～45cm, width 3～20cm.

Preferably, the guide layer is a hot air guide layer, a spunbond guide layer or a hot-rolled guide layer; and/or the gram weight of the guide layer is 5-50 g/m ² , and/or the The length of the guide layer is 2-45 cm, and the width is 2-20 cm.

Preferably, the base film layer has air permeability; and/or the base film layer has a grammage of 8-60 g/m ² , and/or the base film layer has a length of 5-45 cm and a width of 3- 20cm.

Compared with the prior art, the present invention has at least the following beneficial effects:

(1) The present invention provides an absorbent article with a new structure of soft and dry type. The absorbent layer included in the absorbent article is divided into two layers, the upper layer is the first absorbent layer (upper absorbent layer), and the lower layer is the second absorbent layer. Absorbent layer (water-absorbing foam layer); the first absorbing layer makes menstrual blood infiltrate quickly, the surface residual time is shortened, and the dryness is greatly improved; the second absorbing layer highly locks menstrual blood and increases the diffusion of menstrual blood.

(2) In some preferred embodiments of the present invention, the first absorbent layer is a perforated polymer composite absorbent paper (superabsorbent resin composite absorbent paper), which can well accelerate the infiltration of menstrual blood, and quickly absorb the menstrual blood in the first time. The second absorption layer is a perforated water-absorbing foam layer, which makes menstrual blood quickly absorb and diffuse; the arrangement of the diversion holes in the present invention makes the diversion effect of the absorbent article good, and has the advantages of rapid infiltration and diffusion. The function of instant suction helps to improve the dryness of the absorbent article, making the sanitary absorbent article more comfortable and safe to use.

(3) Compared with the traditional use of wood pulp and superabsorbent resin particle structure as the water-absorbent core layer, the superabsorbent resin composite absorbent paper and the water-absorbent foam layer in the present invention greatly reduces the thickness of the absorbent article and simplifies the production. process, greatly reducing dust, energy saving and environmental protection; in some preferred embodiments, the polymer composite absorbent paper is formed by wet composite polymer absorbent resin from base paper, that is, the composite polymer absorbent resin is formed by wet composite polymer In the early stage of forming the wood pulp paper layer, the polymer water-absorbing resin is added. Since the polymer water-absorbing resin is compounded with the paper fiber in the early stage of the paper sheet forming, the polymer water-absorbing resin is completely embedded in the paper fiber, which greatly improves the polymer water-absorbing resin. The contact area between the water absorbent resin and the fiber also enhances the conductivity of the paper fiber and the polymer water absorbent resin to the liquid, thereby greatly improving the liquid absorption and absorption speed of the formed polymer composite absorbent paper.

(4) The absorbent article of the novel structure of the present invention has the advantages of ultra-thin, not easy to form lumps and deformation, fast absorption speed, good diffusivity and dry surface, etc., which improves the absorption and diffusion speed of menstrual blood by the absorbent layer of the sanitary napkin, and simultaneously The sanitary napkin itself is thin and close to the body, and the surface is dry.

Description of drawings

The drawings of the present invention are provided for illustrative purposes only, and the proportions of the components in the drawings are not necessarily consistent with actual products.

FIG. 1 is a schematic structural diagram of an absorbent article with a novel structure in a specific embodiment of the present invention.

FIG. 2 is a top view of the polymer composite absorbent paper included in the upper absorbent layer in FIG. 1 .

FIG. 3 is a top view of the water-absorbent foam layer included in FIG. 1 .

FIG. 4 is a cross-sectional view of the single-layer polymer composite absorbent paper included in the upper absorbent layer in FIG. 1 .

In the figure: 1: Surface layer; 2: Diversion layer; 3: Upper absorbent layer; 31: Polymer composite absorbent paper layer; 311: Base paper layer; 312: Super absorbent resin layer; 4: Water absorbent foam layer; 5: Bottom Membrane layer; 6: guide hole.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The present invention provides an absorbent article with a novel structure, and the absorbent article with a novel structure is preferably a sanitary napkin. For example, as shown in FIG. 1 , the absorbent article of the novel structure includes, from top to bottom, a surface layer 1 , a guide layer 2 , an absorbent layer and a bottom film layer 5 ; 2. The upper absorbent layer 3 on the lower surface and the water-absorbent foam layer 4 (porous water-absorbent foam layer) on the upper surface of the bottom film layer 5. In the present invention, the surface layer 1, the flow guiding layer 2, the upper absorbent layer 3, the water-absorbent foam layer 4 and the bottom film layer 5 can be bonded together by hot melt adhesive in sequence; In the invention, the main components of the hot melt adhesive can be, for example, basic resins, tackifiers, viscosity modifiers, antioxidants, and the like.

In the present invention, the absorbing layer is divided into two layers, the upper layer is the first absorbing layer, namely the upper absorbing layer 3, and the lower layer is the second absorbing layer, namely the water-absorbing foam layer 4; in the present invention, the first absorbing layer makes menstrual blood fast Infiltration, the surface residual time is shortened, and the dryness is greatly improved. The second absorbing layer highly locks the menstrual blood and increases the diffusion of the menstrual blood. Of course, in the present invention, the second absorbent layer can also be, for example, a non-woven fabric-wrapped polymer water-absorbent resin structure, a clean paper-wrapped polymer-absorbent resin structure, a sanitary lining paper-wrapped polymer-absorbent resin structure, or other absorbent core structures , and the inventor creatively uses the water-absorbing foam layer 4 as the second absorbing layer, which can make the blood-locking effect better, make the menstrual blood that quickly penetrates from the first absorbing layer quickly absorb and diffuse, and cooperate with the first absorbing layer. optimal.

According to some preferred embodiments, the upper absorbent layer is composed of polymer composite absorbent paper, fluffy cotton composite core, absorbent paper or wood pulp composited with wood pulp and super absorbent resin (polymer water absorbent resin) and sanitary lining paper. and/or the water-absorbent foam layer is made of a water-absorbent foam material (eg, a polyurethane water-absorbent foam material or other water-absorbent foam materials).

According to some preferred embodiments, the upper absorbent layer 3 is composed of at least one layer (eg one layer, two layers, three layers or four layers) of the polymer composite absorbent paper (polymer composite absorbent paper layer 31 ); The length of the polymer composite absorbent paper is 1-45 cm, preferably 3-45 cm, the width is 0.1-15 cm, preferably 1-15 cm, and/or the gram weight of the polymer composite absorbent paper is 30-130 g/m ² . In the present invention, the upper absorbent layer 3 can be formed by, for example, a single layer of the polymer composite absorbent paper, or can be formed by overlapping two layers of the polymer composite absorbent paper, or can also be formed by, for example, a single layer of the polymer composite absorbent paper. The polymer composite absorbent paper is folded into a double-layer polymer composite absorbent paper layer.

According to some preferred embodiments, the polymer composite absorbent paper is formed by wet method composite polymer absorbent resin (super absorbent resin) of base paper; each layer of the polymer composite absorbent paper (polymer composite absorbent paper layer 31 ) It is composed of two base paper layers 311 and a superabsorbent resin sandwiched between the two base paper layers 311 , for example, as shown in FIG. 4 ; the superabsorbent resin is formed by uniformly distributing between the two base paper layers 311 The superabsorbent resin layer (polymer water-absorbent resin layer) 312 .

In the present invention, the polymer composite absorbent paper is formed by wet-process composite polymer absorbent resin from base paper, that is, the composite method of wet composite polymer absorbent resin is adopted, and the polymer absorbent resin is added at the initial stage of forming the wood pulp paper layer. , Since the polymer water-absorbent resin is compounded with the paper fiber in the early stage of the paper sheet forming, the polymer water-absorbent resin is completely embedded in the paper fiber, which greatly improves the contact area between the polymer water-absorbent resin and the fiber, and also strengthens the paper. The conductivity of the fiber and the polymer water absorbent resin to the liquid greatly improves the absorption capacity and the absorption speed of the liquid by the polymer composite absorbent paper obtained by molding; in the present invention, the upper absorbent layer includes at least one layer of polymer The composite absorbent paper layer, the polymer composite absorbent paper layer is composed of two layers of base paper containing superabsorbent resin particles, which can effectively reduce the thickness of the absorbent core, thereby making the product of sanitary absorbent products thinner, and also can effectively improve the The rate and amount of absorption of the absorbent core.

In the present invention, the polymer composite water-absorbing paper is formed by wet-process composite polymer water-absorbing resin from base paper. The specific molding process may be, for example: (1) The surface slurry and the bottom slurry are respectively formed through the net to obtain Wet surface layer base paper and wet bottom layer base paper; the relative moisture content of the wet surface layer base paper and the wet bottom layer base paper is 50%-80%; (2) respectively spraying the wet surface layer obtained in step (1) with a polymer water-absorbing resin Surface layer base paper and wet bottom layer base paper, and compound the wet surface layer base paper and the wet bottom layer base paper sprayed with the polymer water-absorbing resin respectively, to obtain a wet base paper sheet; (3) combine the The wet base paper sheet is pressed and dried in sequence to obtain the polymer composite absorbent paper.

According to some preferred embodiments, the gram weight of the superabsorbent resin is 10-300 g/m ² , the particle size is 30-100 mesh, the water retention capacity is not less than 25 g/g, and the liquid passing capacity is not less than 0.1 mL/min It is preferably not less than 10 mL/min.

According to some preferred embodiments, the length of the water-absorbent foam layer is 1-45 cm, preferably 5-45 cm, and the width is 0.1-15 cm, preferably 1-15 cm; and/or the gram weight of the water-absorbent foam layer is 5-40 g /m ² ; and/or the water-absorbent foam layer has a thickness of 1 to 8 mm (eg 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5 or 8 mm) . In the present invention, it is preferable that the thickness of the water-absorbent foam layer is 3-5 mm, and the thickness of the water-absorbent foam layer is too large or too small, which is not conducive to the high blood-locking and menstrual blood diffusion of the second absorbent layer, and the water-absorbent foam layer is too thick. Too thick thickness will affect the overall thickness and wearing comfort of the absorbent article.

In the present invention, the upper absorbent layer and/or the water-absorbent foam layer may adopt a perforated structure or a non-perforated structure. In some preferred embodiments, the upper absorbent layer and/or the water-absorbent foam layer There is a perforated structure on the upper surface of the upper surface, and the perforated structure is composed of a plurality of diversion holes, and a plurality of the diversion holes 6 are evenly distributed on the upper absorbent layer 3 and/or the water absorbing foam layer 4. On the upper surface, for example, as shown in Figure 2 and Figure 3; the hole shape of the guide hole is one or more of a circle, a square, a heart shape, a bar shape, and a wave shape. The hole shape of the guide hole is circular, and/or the diameter of the guide hole is 0.1-50 mm. The arrangement of the diversion holes in the present invention enables the absorbent article to have a good diversion effect, has the functions of rapid infiltration and instant suction, helps to improve the dryness of the absorbent article, and makes the hygienic absorbent article more comfortable and safe to use.

According to some preferred embodiments, the upper surface of the water-absorbent foam layer 4 is provided with the perforated structure, for example, as shown in FIG. 3 .

According to some preferred embodiments, the perforated structures are provided on the upper surfaces of the upper absorbent layer and the water-absorbent foam layer, for example, as shown in FIG. 2 and FIG. 3 , respectively.

According to some preferred embodiments, the surface layer is provided with flow-blocking embossings, for example, the upper surface of the surface layer is provided with flow-blocking embossings; the present invention does not specifically limit the shape of the flow-blocking embossings , The setting of the flow blocking embossing increases the contact area of the surface layer, the blocking effect is better, and has the function of triple leakage prevention and blocking.

According to some preferred embodiments, the side portion of the surface layer is provided with a three-piece three-dimensional guard that is higher than the surface layer, and the three-piece three-dimensional guard is composed of, for example, spandex yarn and water-repellent non-woven fabric. In the present invention, the arrangement of the flow blocking embossing and the three-piece three-dimensional protective enclosure can well prevent side leakage.

According to some preferred embodiments, the surface layer is a hot air surface layer, a spunbond surface layer or a pure cotton surface layer or a surface layer of other materials, that is, in the present invention, the hot air surface layer or spunbond surface layer is a spunbond surface layer Non-woven fabrics or dust-free paper or non-woven fabrics formed by hot air or spunbond molding of one or more of polyethylene fibers, polypropylene fibers, polyvinyl chloride fibers, polyester fibers, natural or rayon or cellulose fibers Woven fabric or woven fabric; and/or the surface layer has a grammage of 5-40 g/m ² , and/or the surface layer has a length of 10-45 cm and a width of 3-20 cm.

According to some preferred embodiments, the guide layer is a hot air guide layer, a spunbond guide layer or a hot rolled guide layer or a guide layer of other materials, that is, in the present invention, the hot air guide layer or the spun guide layer The viscous and hot-rolled absorptive layer is a spunbond non-woven fabric or a dust-free paper or is made of one of polyethylene fibers, polypropylene fibers, polyvinyl chloride fibers, polyester fibers, natural or rayon cotton or cellulose fibers. One or several kinds of non-woven fabrics or woven fabrics formed by hot air, spunbonding or hot rolling; and/or the basic weight of the air guiding layer is 5-50 g/m ² , and/or the air guiding layer is The length is 2 to 45 cm, preferably 5 to 45 cm, and the width is 2 to 20 cm, preferably 3 to 20 cm.

According to some preferred embodiments, the surface layer is a hot air surface layer (such as a soft hot air surface layer), and the air guiding layer is a hot air guiding layer (such as a hot air guiding layer with good bulkiness and good softness) or spunbond Diversion layer; more preferably, the hot air surface layer is a weak hydrophilic hot air surface layer, and the hot air or spunbond air guiding layer is a hydrophilic hot air or Hydrophilic Spunbond Diversion Layer. It is particularly noted that the weakly hydrophilic hot air surface layer in the present invention is relative to the hydrophilic hot air or hydrophilic spunbond flow guiding layer, and the hydrophilicity of the hydrophilic hot air or the hydrophilic spunbond flow guiding layer is stronger than that of the hydrophilic hot air or hydrophilic spunbond flow conduction layer. The hydrophilicity of the weakly hydrophilic hot air surface layer, for example, the hot air surface layer is a weakly hydrophilic hot air surface layer that achieves the weak hydrophilic effect of the surface layer through an oil agent, and the hot air or spunbond flow guiding layer is hydrophilic According to the matching principle of gradually hydrophilic from the surface layer downward, the hydrophilic hot air or spunbond flow guiding layer with better hydrophilic effect than the surface layer is selected. The present invention is preferably provided with a weak hydrophilic hot air surface layer and a hydrophilic hot air or hydrophilic spunbond diversion layer, so that the liquid passing through the weak hydrophilic hot air surface layer can quickly penetrate into the hydrophilic hot air or hydrophilic spunbond diversion layer. It can significantly reduce the reverse osmosis phenomenon and improve the dryness of the product; in addition, the setting of the hydrophilic hot air or hydrophilic spunbond flow guiding layer can better retard the storage of the liquid passing through the weak hydrophilic hot air surface layer. Therefore, a certain time interval is provided for the liquid permeating from the weak hydrophilic hot air surface layer to penetrate into the absorbing layer, which is conducive to the more fully absorbed liquid that penetrates and diffuses by the absorbing layer, and also improves the stability of the absorbing layer. sex.

According to some preferred embodiments, the weakly hydrophilic hot air surface layer is a weakly hydrophilic non-woven fabric or a weakly hydrophilic woven fabric; the hydrophilic hot air or hydrophilic spunbond flow-guiding layer is a hydrophilic nonwoven cloth or hydrophilic woven cloth; in particular, the weakly hydrophilic non-woven fabric and hydrophilic non-woven fabric, weakly hydrophilic woven cloth and hydrophilic woven cloth are also relative terms in the present invention. , the hydrophilicity of the hydrophilic non-woven fabric and the hydrophilic woven fabric is stronger than that of the weakly hydrophilic non-woven fabric and the weakly hydrophilic woven fabric, respectively.

According to some preferred embodiments, the bottom film layer is breathable. In the present invention, the bottom film layer can be made of polyethylene (PE) or other materials, for example, can also be made of water-repellent hot air non-woven and/or the base film layer has a gram weight of 8-60 g/m ² preferably 12-60 g/m ² , and/or the base film layer The length is 5-45cm, and the width is 3-20cm.

According to some preferred embodiments, the bottom film layer 5 is made of a PE breathable bottom film, the gram weight of the bottom film layer 5 is 8-60 g/m ² , and the length of the bottom film layer is 5-45 cm, The width is 3-20 cm; the bottom film layer is only breathable and impermeable to water, and can well maintain the comfort inside the sanitary napkin.

Example 1

An absorbent article with a novel structure, the absorbent article comprises, from top to bottom, a surface layer, a flow-guiding layer, an absorbing layer, and a bottom film layer (breathable bottom film layer) in sequence. The surface layer is a soft hot air surface layer, which is provided with flow blocking embossing and three-piece three-dimensional protective enclosure, which can well prevent side leakage; the diversion layer is a hot air diversion with good bulkiness and good softness. The absorbent layer includes an upper absorbent layer on the lower surface of the guide layer and a water-absorbent foam layer on the upper surface of the bottom film layer, the upper absorbent layer is a two-layer polymer composite absorbent paper structure, the The thickness of the water-absorbent foam layer (porous water-absorbent foam layer) was 4 mm. Both the upper absorbent layer and the upper surface of the water-absorbent foam layer are perforated with holes (guiding holes), the hole shape is circular, and the hole diameter is 5 mm. The upper absorbent layer is formed by overlapping two layers of polymer composite absorbent paper. The polymer composite absorbent paper is formed by wet combination of polymer absorbent resin and base paper. Each layer of the polymer composite absorbent paper is composed of two layers. It consists of a base paper layer and a superabsorbent resin sandwiched between two base paper layers. The breathable bottom film layer adopts PE breathable bottom film.

Comparative Example 1

An absorbent article, the absorbent layer of the absorbent article adopts a five-layer composite core body wrapped with dust-free paper, and the five-layer composite core body includes two layers of macromolecules, one layer of fluffy cotton, and two layers of dust-free paper. paper or nonwoven. The five-layer composite core body comprises, from top to bottom, a dust-free paper layer or a non-woven fabric layer, a polymer water-absorbent resin layer, a fluffy cotton layer, a polymer water-absorbent resin layer, a dust-free paper layer or a non-woven fabric layer.

Comparative Example 2

The utility model relates to an absorbent article, the absorbent article comprising an absorbent layer adopts a structure wrapped with a sanitary lining paper of wood pulp and a macromolecule water absorbent resin.

Comparative Example 3

An absorbent article, the absorbent layer comprising a composite paper and dust-free paper wrapping structure formed by dry bonding of wood pulp and polymer water-absorbing resin.

Comparative Example 4

Comparative Example 4 is basically the same as Example 1, except that the absorbent layer includes an upper absorbent layer on the lower surface of the flow-guiding layer and does not include a water-absorbing foam layer.

In the present invention, performance tests were carried out on the absorbent articles produced in Example 1 and Comparative Examples 1 to 4, and the performance test results are shown in Table 1.

The test method is: take animal blood 3 times, 5 mL each time, 3 times at 10 minutes interval, record the time when each absorption is completed as the absorption speed, in s; after each addition of blood for 5 minutes, press with a 1.2kg weight for 1 minute, record The amount of reverse osmosis, in g.

Table 1: Performance test results of the absorbent articles in Example 1 and Comparative Examples 1-4.

Example Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 The first absorption speed/s 4 5 9 4 5 Second absorption speed/s 6 10 11 9 8 The third absorption speed/s 7 19 16 12 9 The first reverse osmosis volume/g 0.01 0.79 0.34 0.19 0.15 Second reverse osmosis volume/g 0.04 1.14 1.68 0.75 0.45 The third reverse osmosis volume/g 0.29 1.60 2.31 1.13 0.89

From the results in Table 1, it can be seen that after adding animal blood, the absorbent article in Example 1 of the present invention has a particularly fast absorption rate and excellent dryness, while the absorbent articles in Comparative Examples 1 to 4 have a higher reverse osmosis amount. large and absorbs slowly. The absorbent article of the novel structure in the present invention has a faster absorption speed and better dryness.

The absorbent articles in Example 1 and Comparative Examples 1 to 4 were made into sanitary napkin products, and then five kinds of sanitary napkin products were used for investigation and research:

Investigated population: 50 women aged 30-45 in menstrual period, using sanitary napkins in Example 1 and Comparative Examples 1-4 respectively.

Survey method: On the premise of ensuring other sanitary conditions, 50 women changed their sanitary napkins every four hours during menstruation.

The survey results are shown in Table 2.

Table 2: Investigation results of the use of absorbent articles in Example 1 and Comparative Examples 1-4.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. An absorption article with a novel structure is characterized in that:

the absorption article comprises a surface layer, a diversion layer, an absorption layer and a bottom film layer from top to bottom in sequence;

the absorbing layer comprises an upper absorbing layer positioned on the lower surface of the diversion layer and a water-absorbing foam layer positioned on the upper surface of the bottom film layer.

2. The absorbent article of claim 1 wherein:

the upper absorption layer is made of high-molecular composite absorbent paper, a fluffy cotton composite core body, absorbent paper formed by compounding wood pulp with high-absorbent resin and sanitary lining paper or the wood pulp with the high-absorbent resin; and/or

The water-absorbing foam layer is made of water-absorbing foam materials.

3. The absorbent article of claim 2 wherein:

the upper absorption layer is composed of at least one layer of the polymer composite absorbent paper;

the length of the high polymer composite absorbent paper is 1-45 cm, the width of the high polymer composite absorbent paper is 0.1-15 cm, and/or the gram weight of the high polymer composite absorbent paper is 30-130 g/m²。

4. The absorbent article of claim 2 wherein:

the high polymer composite absorbent paper is formed by compounding high absorbent resin with base paper by a wet method;

each layer of the polymer composite absorbent paper consists of two raw paper layers and super absorbent resin sandwiched between the two raw paper layers.

5. The absorbent article of claim 4 wherein:

the gram weight of the super absorbent resin is 10-300 g/m²The particle size is 30-100 meshes, the water retention capacity is not lower than 25g/g, and the liquid passing capacity is not lower than 0.1 mL/min.

6. The absorbent article of claim 1 wherein:

the length of the water-absorbing foam layer is 1-45 cm, and the width of the water-absorbing foam layer is 0.1-15 cm; and/or

The gram weight of the water-absorbing foam layer is 5-40 g/m²(ii) a And/or

The thickness of the water-absorbing foam layer is 1-8 mm.

7. Absorbent article according to any of claims 1 to 6, characterized in that:

a punching structure is arranged on the upper surface of the upper absorption layer and/or the water-absorbing foam layer, and the punching structure is composed of a plurality of flow guide holes;

the hole shape of the flow guide hole is one or more of circular, square, heart-shaped, strip-shaped and wave-shaped, and/or the aperture of the flow guide hole is 0.1-50 mm.

8. Absorbent article according to any of claims 1 to 6, characterized in that:

the surface layer is a hot air surface layer, a spun-bonded surface layer or a pure cotton surface layer; and/or

The gram weight of the surface layer is 5-40 g/m²And/or the surface layer is 10-45 cm in length and 3-20 cm in width.

9. Absorbent article according to any of claims 1 to 6, characterized in that:

the flow guide layer is a hot air flow guide layer, a spun-bonded flow guide layer or a hot rolling flow guide layer; and/or

The gram weight of the flow guide layer is 5-50 g/m²And/or the length of the flow guide layer is 2-45 cm, and the width of the flow guide layer is 2-20 cm.

10. Absorbent article according to any of claims 1 to 6, characterized in that:

the base film layer is breathable; and/or

The gram weight of the bottom film layer is 8-60 g/m²And/or the length of the bottom film layer is 5-45 cm, and the width of the bottom film layer is 3-20 cm.

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