TWM633739U - Absorbency article - Google Patents

Abstract

An absorbent product comprising a liquid absorbing unit; a liquid permeable unit arranged on one surface of the liquid absorbing unit and comprising a plurality of intertwined hollow fibers; and a liquid leakage preventing unit arranged on the liquid absorbing unit Opposite a surface of the liquid permeable unit. The design of the absorbent article including a plurality of intertwined hollow fibers through the liquid permeable unit, the absorbent article not only has a thicker appearance due to the hollow characteristics of the hollow fibers, but also gives the user more safety It also has a fluffy and light texture, which gives users a more comfortable use without burden.

Description

Absorbent

The present invention relates to an absorbent article, in particular to an absorbent article containing hollow fibers.

All kinds of absorbent products on the market, such as sanitary napkins, panty liners, maternity pads, diapers, dressings, etc., mainly appeal to the effect of absorbing liquid. Among them, personal products such as sanitary napkins and panty liners pursue a light and thin appearance. However, under such a design, users will feel insecure when using them. Conversely, if you want to emphasize a design with a thick appearance that can give users a sense of security, the thicker texture of the former will make it inconvenient for users to carry and feel burdensome and uncomfortable in use.

Therefore, the purpose of the present invention is to provide an absorbent product that has a thicker appearance and maintains a fluffy and light texture.

Therefore, the novel absorbent article comprises a liquid absorbing unit; a liquid permeable unit arranged on one surface of the liquid absorbing unit and comprising a plurality of hollow fibers intertwined with each other; and a liquid leakage preventing unit arranged on the surface of the liquid absorbing unit. The liquid-absorbent unit is opposite a surface of the liquid-permeable unit.

The efficacy of the present invention lies in: through the design of the liquid permeable unit including a plurality of intertwined hollow fibers, the absorbent article not only has a thicker thickness in appearance due to the hollow characteristics of the hollow fibers, but also gives the user more It also has a fluffy and light texture, which gives users a more comfortable use without burden.

One of the follow-up applications of the new absorbent article is, for example, for the user to place on an underwear and close to the private part of the user, so as to absorb the liquid flowing from the private part. Yet another subsequent application of the novel absorbent article is, for example, for the user to apply to a wound so as to absorb the liquid flowing out from the wound. Specific commercial forms of the absorbent product include but are not limited to sanitary napkins, panty liners, maternity pads, diapers, dressings, and the like. The liquid is for example but not limited to bodily fluid or seepage. The bodily fluids are, for example but not limited to, blood, urine, or vaginal secretions.

The utility model is described in detail below in conjunction with accompanying drawings and embodiments.

Referring to Fig. 1, the first embodiment of the novel absorbent article comprises a liquid-absorbent unit 1, a liquid-permeable unit 2 arranged on one surface of the liquid-absorbent unit 1, and a liquid-absorbent unit 2 arranged on the opposite side of the liquid-absorbent unit 1. A surface of the liquid permeation unit 2 and a liquid leakage prevention unit 3 connected with the liquid permeation unit 2 . Wherein, as shown in FIG. 1 , the liquid-absorbing unit 1 includes a liquid-absorbing body 11 and a liquid-permeable layer 12 covering the liquid-absorbing body 11 and in contact with the liquid-permeable unit 2 and the liquid-leakage-proof unit 3 . As shown in FIG. 2, the liquid permeation unit 2 includes a plurality of hollow fibers 21 entangled with each other. When the absorbent article is used by a user, the liquid permeable unit 2 is used to be close to and contact the user's body parts (such as private parts, wounds, etc.), and the liquid flowing out from the user's body parts first penetrates into the liquid The hollow fibers 21 of the permeable unit 2 are introduced into the liquid absorber 11 through the liquid permeable layer 12 of the liquid absorber 1 to be absorbed, and the liquid that cannot be absorbed by the liquid absorber 11 will be absorbed by the liquid absorber. The drain unit 3 is blocked and does not seep out of the absorbent article. Through the design of the liquid permeable unit 2 comprising a plurality of hollow fibers 21 intertwined with each other, the novel absorbent article has a thicker appearance and can give users more sense of security. It is worth mentioning that the hollow properties of the hollow fibers 21 make the structure of the liquid permeable unit 2 fluffy and light, so that the absorbent article has a fluffy and light texture.

The liquid absorption unit 1 , the liquid permeation unit 2 and the liquid leakage prevention unit 3 are further described in detail below.

The liquid-absorbent body 11 in the liquid-absorbent unit 1 includes a plurality of dry pulp particles, a plurality of liquid-absorbent polymer powders, and a hydrophilic polyolefin fiber web mixed with each other. The dried pulp crumbs refer to a plurality of particles obtained by drying and pulverizing the pulp. The dried pulp crumbs can bind the liquid-absorbent polymer powders and help the user's liquid to flow in the liquid-absorbent body 11. The type of pulp is, for example but not limited to, existing pulp from natural fibers or synthetic fibers. These liquid-absorbent polymer powders can be used to absorb liquids that are much larger than their own mass and have excellent liquid-absorbing capabilities. Such liquid-absorbent polymer powders are such as but not limited to acrylic powder, acrylic A known liquid-absorbing polymer powder such as amine powder or polyvinyl alcohol powder. The hydrophilic polyolefin fiber web can hold liquid and has the ability to absorb liquid. For example, but not limited to, the hydrophilic polyolefin fiber web uses non-woven fabric processes such as melt blown or spunbond to form a plurality of hydrophilic polyolefin fibers. These hydrophilic polyolefin fibers can be any modified polyolefin fibers, such as but not limited to polyethylene fibers, polypropylene fibers or polyvinyl chloride fibers that are hydrophilic after modification fiber.

The liquid-permeable layer 12 in the liquid-absorbent unit 1 is liquid-permeable, so liquid can enter the liquid-absorbent body 11 from the liquid-permeable unit 2, and the liquid-permeable layer 12 can also serve as the liquid-absorbent body 11 The buffer with the liquid leakage preventing unit 3 prevents the liquid absorbing polymer powder in the liquid absorbing body 11 from puncturing the liquid leakage preventing unit 3 after absorbing the liquid and expanding. The liquid-permeable layer 12 is a fibrous paper, such as but not limited to paper made of natural fibers such as wood pulp fiber paper, or polyethylene terephthalate-polyethylene copolymer fiber paper or ethylene- Paper made of synthetic fibers such as propylene copolymer fiber paper. In some specific aspects of this embodiment, the liquid permeable layer 12 is a polyethylene terephthalate-polyethylene copolymer fiber paper or an ethylene-propylene copolymer fiber paper.

As shown in Figure 2, the hollow fibers 21 in the liquid permeation unit 2 are entangled with each other to form a non-woven fabric, such as but not limited to spunlace non-woven fabric, needle-pressed non-woven fabric, hot-rolled non-woven fabric In a specific aspect of this embodiment, the non-woven fabric is a spunlace non-woven fabric in which the hollow fibers 21 are entangled with each other. The hollow fibers 21 are, for example but not limited to, polyolefin hollow fibers, polyester hollow fibers, or polyamide hollow fibers. The above hollow fibers can be used alone or in combination. In some specific aspects of this embodiment, the hollow fibers 21 are selected from hollow fibers with a hollow rate ranging from 10% to 40%.

In a specific aspect of this embodiment, the liquid leak-proof unit 3 is a liquid-impermeable plastic film, such as but not limited to polyethylene film or polypropylene film, which is liquid-impermeable plastic film.

The difference between the second embodiment of the new absorbent article and the above-mentioned first embodiment is that the liquid permeable unit 2 further includes a plurality of solid fibers 22 intertwined with the hollow fibers 21 . As shown in Figure 3, the hollow fibers 21 and the solid fibers 22 are entangled with each other to form a non-woven fabric, such as but not limited to spunlace non-woven fabric, needle-pressed non-woven fabric, hot-rolled non-woven fabric Or ultrasonic non-woven fabric, etc. In some specific aspects of this embodiment, the weight proportion of the hollow fibers 21 in the non-woven fabric ranges from 10% to 50%. The solid fibers 22 are, for example but not limited to, cellulose solid fibers, polypropylene solid fibers, or polyethylene terephthalate solid fibers. The above solid fibers can be used alone or in combination.

The following uses the specific product form of the new type of absorbent product "pad" to describe the effect of the absorbent product through the hollow fibers in more detail, and it is manufactured according to the structure of the first embodiment of the new type of absorbent product. The pads of embodiment 1, embodiment 2, comparative example 1 and comparative example 2, the only difference is that in embodiment 1, a spunlace non-woven fabric with a basis weight of 55 gsm is used as For the liquid permeation unit, in Example 2, a spunlaced non-woven fabric with a basis weight of 35 gsm is used as the liquid permeation unit, and in Comparative Example 1, a spunlace nonwoven fabric is used that is all entangled with solid fibers and A spunlace nonwoven fabric with a basis weight of 55 gsm was used as the liquid permeation unit. In Comparative Example 2, a spunlace nonwoven fabric with a basis weight of 35 gsm made of solid fibers was used as the liquid permeation unit.

And the following uses Example 1 as an example to illustrate the thickness of the pad, the thickness of the spunlace non-woven fabric, the measurement method of basis weight and weight, and use the same measurement method for Example 2, Comparative Example 1 and Comparative Example 2 to measure.

Thickness of the pad (unit: mm): use a thickness meter (brand: Mitutoyo; model: M-07K) to measure the thickness of the pad in Example 1 under the premise that the surface of the pad is smooth and wrinkle-free. The test results are recorded in Table 1.

Thickness of spunlace nonwoven fabric (unit: mm): Use a thickness meter (brand: Mitutoyo; model: M-07K) to measure Example 1 under the premise of making the surface of spunlace nonwoven fabric smooth and wrinkle-free The thickness of the spunlace non-woven fabric used in the test, the obtained result is the thickness of the spunlace non-woven fabric in the pad of Example 1, and the measurement results are recorded in Table 1.

Basis weight (unit: gsm) of spunlace nonwoven fabric: according to the standard test method (2008 edition) of the fabric unit area mass (weight) of ASTM D3776, the spunlace nonwoven fabric used in Example 1 is cut into area ^The sample cloth to be tested is 0.1m2, then, use an electronic scale (brand: ViBRA; model: M3-01E) to measure the weight of the sample cloth to be tested, and use the following formula to calculate the weight of the spunlace nonwoven fabric Basis weight, the formula is: the basis weight (gsm) of the spunlace nonwoven fabric=the weight (g) of the sample cloth to be tested/the area ( ^m2 ) of the sample cloth to be tested, and the obtained result is the The basis weight of the spunlace non-woven fabric, the measurement results are recorded in Table 1.

The weight of the spunlace nonwoven fabric (unit: g): the spunlace nonwoven fabric used in Example ¹ is cut into an area of 0.01m2 and a thickness of 0.5 ± 0.05mm through the cut spunlace nonwoven fabric, Next, an electronic scale (brand: ViBRA; model: M3-01E) was used to measure the weight of the cut spunlace nonwoven fabric of Example 1, and the measurement results are recorded in Table 2.

Table 1 Example 1 Example 2 Comparative example 1 Comparative example 2 Liquid penetrating unit of the pad Fiber types of spunlace nonwovens hollow fiber hollow fiber solid fiber solid fiber Basis weight of spunlace nonwoven fabric (gsm) 55 35 55 35 Thickness of spunlace nonwoven fabric (mm) 0.58 0.40 0.41 0.27 Area of spunlace nonwoven fabric (m ² ) 0.1 0.1 0.1 0.1 Pads Thickness (mm) 2.05 1.91 1.88 1.78

Table 2 Example 1 Example 2 Comparative example 1 Comparative example 2 Weight (g) of cut spunlace nonwoven fabric (area 0.01m ² , thickness 0.5±0.05mm) 0.50 0.31 0.56 0.35

Referring to Table 1, the basis weight of the spunlace nonwoven fabric used in Example 1 (all made of hollow fiber entanglement) and the spunlace nonwoven fabric used in Comparative Example 1 (all made of solid fiber entanglement) The same and the same area, but due to the hollow characteristics of these hollow fibers, the thickness of the spunlace nonwoven fabric used in Example 1 is higher than the thickness of the spunlace nonwoven fabric used in Comparative Example 1, so that the embodiment The thickness of the pad of Example 1 is higher than that of Comparative Example 1, and the texture of the pad of Example 1 is relatively fluffy. Example 2 also exhibited the same results as compared with Comparative Example 2. It can be seen that compared with Comparative Examples 1 and 2, the pads of Examples 1 and 2 have a thicker thickness and a more bulky effect due to the hollow properties of the hollow fibers.

Referring to Table 2, under the condition that the area of the cut spunlace nonwoven fabric is the same and the thickness is the same, compared with the spunlace nonwoven fabric used in Comparative Example 1, which is all entangled with solid fibers, in Example 1 The used spunlace nonwovens are all made of hollow fiber entanglements, so the weight of the cut spunlace nonwovens is relatively low. From this result, it can be deduced that the protective pad of Example 1 and the protective pad of Comparative Example 1 Under the conditions of the same pad area and the same thickness, the weight of the pad in Example 1 should be lower than the weight of the pad in Comparative Example 1. Comparing Example 2 and Comparative Example 2 also, the same results can be inferred. It can be seen that compared with the pads of Comparative Examples 1 and 2, the pads of Examples 1 and 2 also have a lightness effect through the hollow properties of the hollow fibers.

To sum up, the design of the novel absorbent article includes a plurality of intertwined hollow fibers through the liquid permeable unit, and the absorbent article not only has a thicker thickness in appearance due to the hollow characteristics of the hollow fibers, but also endows it with The user has more sense of security, and it also has a fluffy and light texture, so that the user can use it without burden and more comfortable. Therefore, the purpose of the present invention can indeed be achieved.

But the above-mentioned person is only the embodiment of the present invention, and should not limit the scope of implementation of the present invention with this, and all simple equivalent changes and modifications made according to the patent scope of the present application and the content of the patent specification are still within the scope of the present invention. Within the scope covered by this patent.

1: Liquid absorption unit 11: Liquid absorber 12: Liquid permeable layer 2: Liquid permeation unit 21: hollow fiber 22: Solid fiber 3: Liquid leak-proof unit

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a schematic cross-sectional view of the first embodiment of the new absorbent article; Fig. 2 is a partial three-dimensional cross-sectional view of the liquid permeation unit of the first embodiment, illustrating the appearance of a plurality of hollow fibers intertwined with each other to form a non-woven fabric in the liquid permeation unit; and 3 is a partial three-dimensional cross-sectional view of the liquid permeation unit of the second embodiment, illustrating the appearance of a plurality of hollow fibers and a plurality of solid fibers intertwined with each other in the liquid permeation unit to form a non-woven fabric.

1: Liquid absorption unit

11: Liquid absorber

12: Liquid permeable layer

2: Liquid permeation unit

3: Liquid leak-proof unit

Claims (11)

An absorbent article comprising: a liquid absorption unit; a liquid-permeable unit disposed on one of the surfaces of the liquid-absorbent unit and comprising a plurality of hollow fibers entangled with each other; and A liquid leakage preventing unit is arranged on a surface of the liquid absorbing unit opposite to the liquid permeating unit. The absorbent article according to claim 1, wherein the hollow fibers in the liquid permeable unit are intertwined with each other to form a non-woven fabric. The absorbent article according to claim 1, wherein the liquid permeable unit further comprises a plurality of solid fibers intertwined with the hollow fibers. The absorbent article according to claim 3, wherein the hollow fibers and the solid fibers in the liquid permeable unit are entangled with each other to form a non-woven fabric. The absorbent article according to claim 4, wherein the weight ratio of the hollow fibers in the non-woven fabric ranges from 10% to 50%. The absorbent article according to claim 2 or 4, wherein the non-woven fabric is one of spunlace non-woven fabric, needle-punched non-woven fabric, hot-rolled non-woven fabric and ultrasonic non-woven fabric. The absorbent article according to claim 1, wherein the hollow fibers are selected from hollow fibers having a hollow rate ranging from 10% to 40%. The absorbent article according to claim 1, wherein the liquid-absorbent unit includes a liquid-absorbent body, and a liquid-permeable layer covering the liquid-absorbent body and in contact with the liquid-permeable unit and the liquid-leakage-proof unit. The absorbent article according to claim 8, wherein the liquid-permeable layer is a fibrous paper. The absorbent article according to claim 8, wherein the liquid-absorbent body comprises a plurality of dried pulp crumbs, a plurality of liquid-absorbent polymer powders, and a hydrophilic polyolefin fiber web mixed with each other. The absorbent article according to claim 1, wherein the liquid leakage preventing unit is a liquid impermeable plastic film.

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