CN219070988U - Quick-suction reverse osmosis prevention structure, fabric and sanitary product - Google Patents

Abstract

The utility model relates to the field of sanitary products, in particular to a quick-sucking reverse osmosis prevention structure, fabric and a sanitary product. The scheme improves the downward seepage and absorption speed of the sanitary product on excreted liquid, and has the function of reverse osmosis prevention.

Description

Quick-suction reverse osmosis prevention structure, fabric and sanitary product

Technical Field

The utility model relates to the field of sanitary products, in particular to a quick-suction reverse osmosis prevention structure, fabric and a sanitary product.

Background

Sanitary articles include diapers, pull-ups, sanitary napkins, sleeping pants, and the like. The main body structure of the sanitary articles is different in size and mainly comprises three parts, a surface layer, a core layer and a bottom layer, wherein the surface layer is used for being in contact with skin, the core layer is used for absorbing and storing liquid, the bottom layer is a layer of film outside the sanitary articles, and liquid in the sanitary articles is prevented from exuding.

The surface layer of the existing sanitary article is generally a planar hot air non-woven fabric, and part of the product adopts a single convex point or concave point shape for attractive appearance. Besides the beautiful effect, part of products even increase the thickness of non-woven fabrics or increase the pressure area for manufacturing concave-convex points in order to meet the requirements of beautiful appearance and good plumpness of convex points or concave points, thereby finally leading to the beautiful appearance, but affecting the infiltration speed of the surface layer liquid of the products, leading to the long-term moist condition of skin, even being wrapped by urine and loose feces, and finally leading to the adverse effects of skin allergy, inflammation, body discomfort and the like.

At present, in order to improve the liquid infiltration speed of the sanitary article, a surface hydrophilic finishing modification mode is mainly adopted, namely a hydrophilic agent aqueous solution with a certain concentration is prepared, a roller coating, spraying or padding mode is adopted to attach the hydrophilic agent to the fiber surface of the surface layer, and finishing is completed through drying. By attaching a hydrophilic agent to the surface of the fibers, the surface of the facing layer forms a hydrophilic surface upon which water can spread and penetrate. The method is a method for improving the liquid infiltration speed of the sanitary product at present, but hydrophilic agents are attached to the surface of the surface layer, the infiltration speed of the surface layer is still limited, and particularly for the surface layer positioned in an excretion area (such as the middle area of a paper diaper), the amount of excreted liquid is large, the excreted liquid cannot penetrate quickly in time in a short time, so that the problem that the skin is wet for a long time still can be caused, and the infiltration speed of the liquid at the position of the excretion area on the surface layer still needs to be further improved.

Disclosure of Invention

The utility model aims to provide a rapid-absorption reverse osmosis prevention structure, fabric and sanitary articles so as to improve the downward osmosis and absorption speed of the sanitary articles on excreted liquid.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the rapid absorption reverse osmosis prevention structure comprises a salient point area and a concave area, wherein the salient point area is higher than the concave area, the salient point area and the concave area are arranged in a staggered manner, and a plurality of infiltration holes are formed in the bottom of the concave area.

In the prior art, the way of improving the liquid absorption speed of the fabric is generally that a hydrophilic agent is arranged on the surface of the fabric, so that the absorption speed of the fabric is not improved in terms of structure, but the utility model conception of the inventor in the scheme is different from the conventional improvement thought, and innovation is carried out in terms of changing the structure of the fabric so as to improve the infiltration and absorption speeds of the fabric and sanitary articles on excreted liquid. The salient point area in this scheme is convex position, and the concave area is the concave position downwards, and salient point area and concave area are to both, and from the side of pressing close to skin, salient point area is higher than concave area.

The principle and the advantages of the scheme are as follows: 1. the bottom of the concave area is provided with a plurality of infiltration holes, and the aperture of the infiltration holes is larger than that of micropores of the fabric, so that excreta such as urine, loose stool and the like can be infiltrated rapidly, and the absorption speed of excreted liquid can be improved.

2. The bump area is higher than the concave area, the bump area and the concave area are uneven, and the lower seepage hole is positioned on the concave area, namely the lower seepage hole is positioned at a low position, so that the excreted liquid can gather to the concave area at the low position under the action of self gravitational potential energy, and the excreted liquid can flow downwards through the lower seepage hole in time, and the absorption speed of the excreted liquid is improved.

3. When the amount of the excreted liquid is large and concentrated, the excreted liquid cannot be infiltrated into the core at the time and stays on the surface of the core layer, so that the phenomenon of liquid reverse osmosis of the fabric is easy to occur. The bump area is higher than the concave area, the lower part of the bump area forms a cavity, so that after excreting liquid seeps downwards through the seepage holes, part of excreting liquid which is laterally diffused can stay in the cavity, the cavity is arranged so that the excreting liquid which is not timely and downwardly permeated into the core layer provides a storage space, and compared with the storage space or the extremely small storage space, the situation that the excreting liquid which is not timely and downwardly permeated into the core layer upwards seeps back through the fabric can be relieved, and therefore the structure has a certain reverse osmosis prevention effect.

4. In addition, bump area and concave area are rugged, and when this structure contacted with skin, bump area can contact with skin, and have the space between concave area and the skin to make this structure can not all paste in skin, the recess can be as the passageway of air flow, has improved the gas permeability of health supplies, has improved the travelling comfort of use.

5. In addition, the liquid in the convex point area flows downwards to the concave area, and the liquid amount in the convex point area contacted with the skin is reduced, so that the contact area of the liquid and the skin is reduced, and the problem that the skin is in a moist state for a long time is solved.

Preferably, as an improvement, the bump areas and the concave areas are arranged in a staggered manner in a two-dimensional space. Therefore, the bump areas and the concave areas are arranged in a staggered manner in a two-dimensional space instead of being singly arranged in one direction, and the bump areas and the concave areas are arranged regularly, uniformly and attractive. Meanwhile, by adopting the two-dimensional arrangement mode (two-direction arrangement), the periphery of the salient point area is also provided with the concave area, so that liquid on the salient point area can flow to the periphery and enter the concave area on the periphery, and the quick absorption effect on the liquid is improved.

Preferably, as a modification, the bump area and/or the recessed area have the shape: circular, oval, rectangular, triangular, diamond, pentagonal, or hexagonal. Therefore, the shapes of the convex point area and the concave area can be set to different shapes according to actual requirements and aesthetic degrees.

Preferably, as a modification, the pore diameter of the infiltration pores is 0.05-2mm.

Preferably, as a modification, the height of the bump area is 1-3mm.

Preferably, as a modification, the top of the bump area is an upwardly arched surface. The side edge of the convex point area is lower to form a diversion inclined plane by the upwardly arched cambered surface, so that the excreted liquid on the convex point area is easy to flow downwards.

Preferably, as an improvement, vertical reinforcing strips are arranged on the side wall between the convex point area and the concave area; the top of the salient point area is an upward arched surface. The setting of strengthening strip can improve the ability of lateral wall anti-bending between salient point region and the concave region, has improved the intensity of lateral wall between salient point region and the concave region, and salient point region is difficult for taking place to collapse, guarantees that salient point region can maintain the state of upwards protruding. Meanwhile, the reinforcing strips are arranged vertically, and compared with the reinforcing strips arranged transversely, the reinforcing strips are better in reinforcing effect.

In order to achieve the above purpose, the present utility model further adopts the following technical scheme: the fabric is provided with any rapid-sucking reverse osmosis preventing structure. The rapid-sucking reverse osmosis preventing structure is applied to the fabric, so that the fabric has the corresponding technical effect of the rapid-sucking reverse osmosis preventing structure, and the rapid-sucking reverse osmosis preventing structure is used for protecting the fabric with the rapid-sucking reverse osmosis preventing structure.

Preferably, as an improvement, at least an upper fibrous layer and a lower fibrous layer positioned below the upper fibrous layer, the upper fibrous layer having a denier less than the denier of the lower fibrous layer. From this, the denier of the upper fibrous layer of surface fabric is different with lower fibrous layer, and upper fibrous layer denier is little, and upper fibrous layer and skin contact can keep soft touch, and lower fibrous layer denier is big, and the fibre is thick, does benefit to quick water conservancy diversion, improves the speed that liquid oozes down.

In order to achieve the above purpose, the present utility model further adopts the following technical scheme: the sanitary article comprises a surface layer made of any one of the fabrics. The fabric is applied to the surface layer of the sanitary article, such as the surface layer of a paper diaper, a pull-up diaper, a sanitary towel and a pair of sleeping trousers, so that the sanitary article has the technical effect of quick absorption and reverse osmosis prevention, and the sanitary article using the fabric is protected.

Drawings

Fig. 1 is a schematic plan view of a quick suction reverse osmosis prevention structure.

FIG. 2 is a schematic cross-sectional view of a quick suction reverse osmosis prevention structure.

Fig. 3 is a partial perspective view of a quick suction reverse osmosis prevention structure.

Fig. 4 is a schematic structural view of two stretching rolls for processing the salient point area of the non-woven fabric.

Fig. 5 is a perspective view of an upper stretching roller.

Fig. 6 is a perspective view of the upper teeth of the upper stretching roller.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: bump area 1, concave area 2, infiltration hole 3, cavity 4, core layer 5, lower fibrous layer 6, first arrow 7, second arrow 8, third arrow 9, reinforcing strip 10, upper stretching roller 12, lower stretching roller 13, tooth 14, convex strip 15, groove 16.

Example 1

Substantially as shown in figures 1 to 6 of the accompanying drawings.

The embodiment discloses a rapid-sucking reverse osmosis preventing structure, which is applied to a fabric for example, and is particularly applied to a surface layer of a sanitary article to describe an embodiment of the utility model.

The rapid absorption reverse osmosis prevention structure is shown in combination with fig. 1, and comprises a salient point area 1 and a concave area 2, wherein the salient point area 1 and the concave area 2 are arranged in a staggered manner, and a plurality of infiltration holes 3 are formed in the bottom of the concave area 2. The salient point areas 1 and the concave areas 2 are arranged in a staggered mode in the first direction and the second direction, and the first direction and the second direction are intersected. In this embodiment, the first direction and the second direction are an X direction and a Y direction that intersect perpendicularly. Of course, the first direction and the second direction may not be perpendicular.

As shown in fig. 2 and 3, the bump area 1 is higher than the concave area 2. The height of the bump area 1 is the distance between the top surface of the bump area 1 and the top surface of the depressed area 2, specifically 1 to 3mm, preferably 1 to 2mm in this embodiment, and more preferably 1.5mm. The area of the single depressed region 2 is 0.25-100mm ² The area of the single bump area 1 surrounded by the depressed area 2 is 0.25-100mm ² The convex area 1 and the concave area 2 in this embodiment are square in shape, specifically, square structures each having a side length of 10mm, so that the surface areas are 100mm ² Of course, the shapes and areas of the convex point region 1 and the concave point region 2 can be set according to practical situations, and the shapes can also be set as rectangle, triangle, diamond, circle, ellipse, pentagon, hexagon, polygon, special shape and the like.

The diameter of the infiltration holes 3 in this embodiment is 0.05-2mm, preferably 1mm in this embodiment. As shown in fig. 2, the top of the bump area 1 is an upwardly arched surface, the middle of the arched surface is high, and the periphery is low.

Referring to fig. 2, the rapid absorption reverse osmosis preventing structure in this embodiment is applied to a surface layer of a sanitary article, the surface layer is a nonwoven fabric, and includes an upper fiber layer and a lower fiber layer 6 located below the upper fiber layer, the denier of the upper fiber layer is smaller than that of the lower fiber layer 6, the upper fiber layer and the lower fiber layer 6 are formed by hot-melt adhesive through hot-pressing and compounding, the upper fiber layer is 1.5 denier, and the lower fiber layer 6 is 3 denier, so that soft touch feeling can be kept when the upper fiber layer contacts with skin, and the lower fiber layer 6 is coarse denier fiber which is favorable for rapid diversion.

When the surface layer is applied to the sanitary article, as shown in fig. 2, the core layer 5 of the sanitary article is arranged below the surface layer, and after the excreted liquid is discharged, the liquid on the salient point area 1 flows downwards to the concave area 2 along the side wall between the salient point area 1 and the concave area 2 along the direction of the first arrow 7, and the excreted liquid flowing to the concave area 2 flows downwards through the seepage holes 3 along the direction of the second arrow 8 and is absorbed by the core layer 5. Because the bottom of the concave area 2 is provided with a plurality of infiltration holes 3, the aperture of the infiltration holes 3 is larger than that of micropores of the cloth, so that excreta such as urine, loose stool and the like can be infiltrated rapidly, and the absorption speed of excreted liquid can be improved.

When the amount of the discharged liquid is large and concentrated, the discharged liquid cannot be infiltrated into the core layer 5 at the time and is temporarily suspended on the surface of the core layer 5, so that the surface layer is easy to have liquid reverse osmosis. The bump area 1 is higher than the concave area 2, and a cavity 4 is formed between the lower part of the bump area 1 and the side wall between the bump area 1 and the concave area 2, so that after excreting liquid infiltrates downwards through the infiltration holes 3, part of excreting liquid which does not infiltrate downwards in time into the core layer 5 can be laterally diffused and remained in the cavity 4 according to the third arrow 9, and the cavity 4 provides a storage space for excreting liquid which does not infiltrate downwards in time into the core layer 5, so that the situation that excreting liquid which does not infiltrate downwards in time into the core layer 5 returns to the upper side through the surface layer can be relieved, and the structure has a certain reverse osmosis preventing function.

In addition, bump area 1 and concave area 2 are rugged, and when this structure and skin contact, bump area 1 can be with skin contact, and have the space between concave area 2 and the skin to make this structure can not all paste in the skin, the recess between bump area 1 and the bump area 1 can be regarded as the passageway of air flow, has improved the gas permeability of health supplies, has improved the travelling comfort of use.

The quick-absorption anti-reverse osmosis structure on the fabric can be arranged on the whole fabric, so that the whole fabric has the quick-absorption anti-reverse osmosis function, and when the fabric is used, the fabric is cut to prepare corresponding sanitary articles; of course, the quick-absorption anti-reverse osmosis structure can be arranged at the local part of the fabric, and in practical application, the part of the fabric provided with the quick-absorption anti-reverse osmosis structure needs to be applied to the middle part (more urine at the middle part) of the sanitary article, such as the crotch part of paper diapers and pull-up pants.

Example 2

In addition, in order to increase the strength of the bump area 1, collapse of the bump area 1 when it is pressed is reduced, and as shown in fig. 3, vertical reinforcing strips 10 are provided on the side walls between the bump area 1 and the depressed area 2. Since the reinforcing strips 10 are formed by extrusion of the teeth 14, each reinforcing strip 10 must correspond to a strip-shaped groove (not shown in the figure) due to the processing technology, and the reinforcing strips 10 and the strip-shaped grooves are respectively located at two sides of the side wall between the convex point region 1 and the concave region 2, and the reinforcing strips 10 are located on the side surface of the side wall between the convex point region 1 and the concave region 2 facing the concave region 2 in this embodiment, and can also be located on the side surface of the inner wall of the cavity 4. Through setting up the strengthening strip 10, can improve the intensity of the lateral wall between salient point region 1 and the concave region 2, the lateral wall is difficult for buckling between salient point region 1 and the concave region 2 to reduce salient point region 1 and receive the extrusion and take place the condition of collapsing, improved salient point region 1 structural stability.

As shown in fig. 4 to 6, the bump region 1 and the concave region 2 in embodiments 1 to 2 are formed as follows: the forming device is mainly used as a forming device, two stretching rollers are mainly used as an upper stretching roller 12 and a lower stretching roller 13, a plurality of convex teeth 14 are arranged on the surface of the upper stretching roller 12 (the height from the end part of each convex tooth 14 to the surface of the upper stretching roller 12 is 1.5 mm), the convex teeth 14 are uniformly distributed along the axial direction and the circumferential direction of the upper stretching roller 12, a groove 16 matched with the convex teeth 14 is formed on the upper surface of the lower stretching roller 13, the convex teeth 14 can be inserted into the groove 16, the shapes of the groove 16 and the convex teeth 14 are matched with each other, when the non-woven fabric passes through the upper stretching roller 12 and the lower stretching roller 13, the convex teeth 14 press the non-woven fabric into the groove 16, the part pressed into the groove 16 protrudes out of the non-woven fabric to form a convex point area 1, and after the convex teeth 14 exit from the groove 16, the space occupied by the convex teeth 14 on the non-woven fabric forms a cavity 4. And the portions of the surfaces of the upper stretching roller 12 and the lower stretching roller 13 which are not pressed by the convex teeth 14 are concave areas 2. Thus, the nonwoven fabric is extruded by the upper stretching roller 12 and the lower stretching roller 13, so that the convex areas 1 and the concave areas 2 are formed on the surface of the nonwoven fabric.

As shown in fig. 6, the convex teeth 14 are provided with a plurality of convex strips 15, the convex strips 15 are uniformly distributed on the surface of the convex teeth 14, and a plurality of convex strip grooves matched with the convex strips 15 are formed on the inner wall of the groove 16, so that when the convex teeth 14 are extruded to form the convex point area 1, the convex strips 15 press the non-woven fabrics into the convex strip grooves to form the reinforcing strips 10, and the space occupied by the convex strips 15 is the strip grooves.

The above-mentioned bump area 1 is produced by pressing down the nonwoven fabric with the convex teeth 14 to form the bump area 1 (in this case, after the nonwoven fabric is processed in fig. 4, the nonwoven fabric is seen from the bottom to the top in fig. 4), and the concave area 2 is the portion of the nonwoven fabric that is not pressed down, and is the concave area 2. Of course, if the schematic view of fig. 2 is inverted 180 degrees, as shown in fig. 2, the concave region 2 in fig. 2 moves to the upper side of the figure and can be regarded as the convex region 1, and the convex region 1 moves to the lower side of the figure and can be regarded as the concave region 2, so that the portion of the nonwoven fabric pressed and protruded by the convex teeth 14 after the convex teeth 14 are pressed can be regarded as the concave region 2 (when the nonwoven fabric is processed in fig. 4, the portion of the nonwoven fabric is seen from the upper side of fig. 4) and the portion of the nonwoven fabric not pressed by the convex teeth 14 is regarded as the convex region 1.

After the salient point area 1 and the concave area 2 are processed by the equipment in fig. 4, the non-woven fabric is moved to a needling roller, and a plurality of infiltration holes 3 are needled in the concave area 2 by a plurality of needles on the needling roller. The method is that firstly the convex point area 1 and the concave area 2 are processed, then the downward seepage hole 3 is processed, and the processing of the convex point area 1 and the concave area 2 and the processing of the downward seepage hole 3 are respectively and separately carried out.

Of course, in other embodiments, the protruding point area 1 and the concave area 2 and the infiltration hole 3 may be processed simultaneously, that is, pins (not shown in the drawing) are integrally formed on the surface of the upper stretching roller 12, specifically, when the extruded portion of the protruding teeth 14 on the non-woven fabric is regarded as the protruding point area 1, the pins are located in a blank area of the upper stretching roller 12 where the protruding teeth 14 are not located, and a pinhole (not shown in the drawing) opposite to the pins is provided on the surface of the lower stretching roller 13 where the groove 16 is not located, so that the infiltration hole 3 can be processed on the non-woven fabric simultaneously by inserting the pins into the pinholes when the protruding point area 1 and the concave area 2 are processed. Of course, in other embodiments, the pins may be integrally formed on the surface of the lower stretching roller 13 at a position where the grooves 16 are not provided, and the pinholes are provided in a blank area on the upper stretching roller 12 where the teeth 14 are not provided.

Of course, in other embodiments, when the extruded portion of the teeth 14 on the nonwoven fabric is regarded as the concave region 2, the pin is located on the end surface of the teeth 14 away from the upper stretching roller 12, and the bottom portion of the groove 16 on the lower stretching roller 13 is provided with a pinhole opposite to the pin. Of course, in other embodiments, the pins may be located on the bottom of the grooves 16 on the lower stretch roll 13, with the pin holes being located on the end of the teeth 14 remote from the upper stretch roll 12.

In addition, after the processing of the non-woven fabric with the salient point areas 1 and the concave areas 2 is finished, a layer of flat non-woven fabric can be further compounded on the side, away from the salient point areas 1, of the non-woven fabric, so that the side, where the salient point areas 1 are not arranged, of the surface layer is a plane.

After the surface layer is processed, finally, the surface layer, the core layer and the bottom layer are compounded by hot melt adhesive to prepare sanitary articles such as sanitary napkins, pull-up pants, sleeping pants, paper diapers and the like.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (9)

1. Quick-sucking reverse osmosis prevention structure is characterized in that: the device comprises a salient point area and a concave area, wherein the salient point area is higher than the concave area, the salient point area and the concave area are arranged in a staggered manner, and a plurality of infiltration holes are formed in the bottom of the concave area; and vertical reinforcing strips are arranged on the side wall between the convex point area and the concave area.

2. The rapid-absorbing reverse osmosis prevention structure according to claim 1, wherein: the convex point areas and the concave areas are arranged in a staggered mode in a two-dimensional space.

3. The rapid-absorbing reverse osmosis prevention structure according to claim 1, wherein: the bump area and/or the concave area have the following shape: circular, oval, rectangular, triangular, diamond, pentagonal, or hexagonal.

4. A rapid absorption reverse osmosis prevention structure according to any one of claims 1-3, characterized in that: the diameter of the infiltration holes is 0.05-2mm.

5. A rapid absorption reverse osmosis prevention structure according to any one of claims 1-3, characterized in that: the height of the bump area is 1-3mm.

6. A rapid absorption reverse osmosis prevention structure according to any one of claims 1-3, characterized in that: the top of the salient point area is an upward arched cambered surface.

7. The fabric is characterized in that: the fabric is provided with the rapid-sucking reverse osmosis preventing structure as claimed in any one of claims 1 to 6.

8. The fabric of claim 7, wherein: at least comprises an upper fiber layer and a lower fiber layer positioned below the upper fiber layer, wherein the denier of the upper fiber layer is smaller than that of the lower fiber layer.

9. The sanitary article is characterized in that: comprising a facing layer made of the fabric of any one of claims 7-8.

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